Everything you wanted to know about UV Lamps

    The use of UV light as a curing technology has been around for a long time. In the last few years it has become more 

popular since the technology on the lamps and the materials side has greatly improved. Applications are now on sheetfed, 

web and wide format inkjet equipment. The major advantages of UV inks are:



    1)    Press sheets are dry when they come off the press


    2)    Higher throughput speed than Infra-Red drying


    3)    No Volatile Organic Compounds released in the air


    4)    Resist smudging and abrasion


    5)    UV Coatings have a “wet look”


    6)    Do not have solvents to penetrate uncoated stocks


    Most printers buy UV power supply systems that may be supplied 

by the manufacturer of the equipment but made by someone else. Understanding how UV lamps work can improve their 

performance and save you money.


    There are series power supply for 

different applications. Low-pressure UV lamps may be used for disinfecting purposes, curing nails and dental fillings, or 

water purification. The type of lamp used in printing applications is usually a medium pressure, linear (straight tubes), 

mercury vapor arc lamp. Medium pressure UV lamps cure inks and coatings instantly. It is a photochemical, not a heat 

process. It allows the equipment to run at very high speeds for extended periods.


    General use light bulbs have a filament. The electricity causes the filament to glow, producing light. Medium pressure 

UV lamps do not have a filament. They utilize a high voltage charge to ionize a mercury/gas mixture in the lamp creating a 

plasma that emits UV light. This system requires a high voltage/amperage power supply (typically a magnetic ballast 

transformer with a high voltage capacitor bank). The ballast is wired in series with the lamp and performs two functions. 

Initially, the ballast provides a high voltage charge to ‘strike’ or ‘ionize’ the mercury. Then, once the mercury is 

ionized, the ballast reduces the voltage and amperage required to keep the mercury ionized and emit a stable stream of UV 

light.


    These lamps generate a specific wavelength to cure the inks or coatings. Currently, most of these lamps operate at 300 

to 600 watts per inch with some newer systems using lamps that generate up to 1000 watts per inch. So a 30 inch UV bulb may 

be capable of an output of 30,000 watts. They also operate at very high temperatures (850 to 950 Celsius or 1550 to 1750 

Fahrenheit).


    This type of UV lamp is made from Quartz. A general glass product would not be able to withstand the high temperatures. 

An inert gas (usually argon) is pumped into the quartz sleeve and then mercury is added to achieve the proper electrical 

specification. Iron and gallium are occasionally added to achieve special wavelengths. The tubes are sealed and the correct 

electrical end-fittings are added to complete the lamp.


    These lamps need a powerful cooling system to offset the high operating heat. They are usually air or air and water 

cooled. They also use reflectors to maximize the ultraviolet light delivered to the substrate. There must be an even flow 

of air or water across the lamp for proper curing. If lamps run too cool they may not cure the ink or coating. Some systems 

use outside air for cooling. As the seasons change, depending on your geographic location, you may need to adjust your fan 

speed or increase/decrease water temperature to maintain proper cooling.


    Contamination is another problem that can affect lamp performance. Due to the high heat air contaminants such as spray 

powder from other presses or dust particles can bake on the lamps creating a haze. This decreases the performance of the 

lamps. Ideally, even after extended use the quartz should be completely clear.


    The xenon searchlight is delivered with a built-in xenon power 

supply, excluding large and heavy external power supply’s. This design enables easy installation (no external power 

supply TA values or IP-ratings to be considered) and significant cost savings, by reducing engineering and eliminating 

these cables and connections:


    - Cable between power source and external power supply
- Cable between power supply and searchlight
- Remote signal cable between searchlight and power supply


    UV LED systems have a bright future in industrial and life 

science applications even given the fact that humans can’t see the light. In particular, LEDs in the UV-C band (generally 

100–280 nm) promise to revolutionize sterilization and disinfection and could bring safe water to people around the globe 

and safer conditions to our medical facilities (Fig. 1). LEDs Magazine, in fact, covered a [url=https://www.hpe-

uvpower.com/uv-led-system/uv-led-curing-with-4in1/]UV LED Curing with 4in1[/url] designed for such an 

application earlier this year. Still, we hear that such applications need LEDs with higher performance and longer 

lifetimes to truly penetrate the market. But UV product developers need to rethink LED lifetime as another variable in the 

engineering process.

WPC Flooring, SPC Flooring and LVT Flooring: What Differences, Similarities and Benefits?

    If you own a modern home or have plans to own one in the future, you must have heard of vinyl floorings. These 

affordable and stylish flooring options are increasingly becoming the choice of many homeowners and commercial property 

owners who want to give their living and working spaces a fresh look. 


    There are three main types of vinyl flooring - WPC flooring, LVT flooring

and SPC flooring. In terms of market entry, traditional versions of 

Luxury Vinyl Tile flooring have been in the market for many years. With time, changes in buyer preferences led to the 

development of advanced flooring solutions that saw rigid core vinyl such as WPC and SPC flooring hit the market.


    Even so, each flooring type comes with its own set of benefits and drawbacks that you need to consider before settling 

for one. Though different, the three flooring types share several similarities.


    In this article, we explore the benefits, differences and similarities that SPC Vinyl flooring, LVT and WPC floorings 

have. 


    Before we delve into this, let's first define each of these vinyl floorings:


    LVT Flooring


    Luxury Vinyl Tile is an updated and innovative version of vinyl flooring that is today a top contender when it comes to 

floor installations in commercial and living spaces. Designed with a real wood, stone or ceramic look, 

carpet grain LVT flooring is not just 

affordable, it is also durable, waterproof and resistant to scratches. 


    SPC Flooring


    Stone Plastic Composite (SPC flooring), also referred to as Rigid Vinyl Plank, is an upgrade of LVT. SPC vinyl 

flooring comes with multiple layers and backing options that make it ideal for homes. Some key aspects that make it 

stand out include low noise levels, no warping, eco-friendliness and insulation against sound and heat. 


    WPC Flooring


    Wood Plastic Composite (WPC) derives its name from the wood-like material used to make it. These materials include a 

foaming agent known as polyvinyl chloride, plasticisers, wood flour and calcium carbonate. 


    Benefits of LVT, WPC and SPC Flooring


    There are numerous benefits that home and commercial property owners derive from using vinyl floorings. These include:


    1.Wear Resistance


    All three vinyl floorings - WPC, SPC and Luxury Plank Vinyl have a high resistance to wear and tear. This means if you 

choose to install any of them in your home or commercial entity, you can use them for a long time without seeing signs of 

wear and tear on them. 


    2.Do Not Fade Fast


    While WPC, LVT and SPC floorings will eventually fade, they do not do so fast. As a matter of fact, these flooring 

score moderately when it comes to fade resistance. This is because they have a UV coating treatment that keeps their color 

from fading fast. This means that once installed, you don't have to worry about your floor losing its shine and color 

in a few years. With proper maintenance, you can enjoy a great floor appearance for a considerably long time. 


    3. 100% waterfroof


    When constructing a home or a commercial building, you'll need to put waterproof flooring in rooms. The 

high moisture resistance feature in LVT, SPC and WPC floor makes them an obvious choice for such spaces. SPC and WPC floor 

have a core that is completely waterproof. These vinyl click floor can be installed in places like kitchens, bathrooms, 

basements and laundry rooms where hardwood or moisture sensitive floor types are not recommended. 


    4.Easy to Install


    Installing WPC, SPC or LVT floor is pretty easy and DIY installation is possible. Since the vinyl planks are easy to 

attach and lock, they can be installed on any existing floor or subfloor without using glues. 


    However, there are places that each floor type works well. For instance, due to their rigid core, SPC vinyl plank 

flooring are suitable for commercial buildings. On the other hand, WPC floor are most suitable for residential spaces due 

to their ability to hide floor imperfections. LVT vinyl flooring work well in leveling uneven surfaces while WPC can cover 

crafts on concrete or wooden floor. 


    5.Design Options 


    If you decide to fix a WPC, LVT or SPC floor in your commercial or living space, you'll be spoilt for design 

choices. All the three floor types are available in numerous designs. They are available in just about any pattern and 

color.


    Making them in different designs is easy - all manufacturers have to do is to print patterns on the vinyl layer. Most 

designs resemble other floor types. For instance, you'll find SPC and WPC floor that have designs similar to stone, 

tile and hardwood flooring.


    6.Easy to Maintain 


    All three floor types are pretty easy to clean and maintain. To keep them looking great, all that home or commercial 

space users have to do is sweep them regularly and clean them occasionally. 


    Key Differences and Similarities Between LVT, WPC and SPC Flooring


    While they have similarities, WPC, LTV and SPC floorings also have several differences. These include: 


    1.Manufacturing Materials


    These three vinyl floorings differ in the composition of the materials that are used to make them. SPC flooring is made 

from polyvinyl chloride, limestone powder and stabilizers. While WPC floorings also contain polyvinyl chloride, the other 

materials differ from those used in SPC flooring. The limestone powder and stabilizers are replaced by plasticisers, wood 

flour and calcium carbonate in WPC flooring. 


    2.Structural Design


    LVT, WPC and SPC are all hybrid flooring. This means they are designed with several layers. However, the layers vary in 

type from one flooring type to another. For instance,

wood grain SPC flooring has a core layer that is made of PVC powder, a stabilizer and calcium powder. On the other 

hand, LVT Vinyl Flooring have a decor and a wear layer. For the WPC floor, the core area comprises a foaming layer and an 

LVT layer that has PVC powder, calcium powder and a plasticizer.


    The other major structural difference between WPC and LVT or SPC flooring is in the way they have been 

constructed. LVT Plank flooring have a PVC core while SPC vinyl plank flooring have a rigid core. However, both of 

them can move and even flex with ease. This is not the case with WPC floorings. Due to the wood-plastic composite material 

that is used to fix their core, these floorings are more stable and more solid compared to LVT and SPC vinyl flooring.


    3.UV Top Coating


    The top layer in the all three vinyl floors -SPC, LVT and WPC - are the same. Each of these floor has a UV coating that 

helps in maintaining their lush appearance by preventing color fading. 


    4.Thickness of Floor Planks


    Generally, the thickness of the three flooring planks ranges between between 3.2mm and 8mm. However, WPC floor planks 

are much thicker compared to LVT and SPC floorings. With a thickness that ranges between 3.2 mm and 7mm, SPC Vinyl flooring 

are not as thick as LVT plank flooring that measure 4mm and WPC flooring that have a minimum thickness of 5mm.  


    5.Firmness of Vinyl Planks


    When it comes to firmness and cushioning, WPC floor carry the day. The sturdiness of floor vinyl is largely determined 

by the material that is used to develop its core. Since WPC vinyls have a thicker core than 

stone grain SPC flooring or 

stone grain LVT flooring, it is more stable 

and has a cushioned feel when you walk on it. SPC floor also have a relatively high level of sturdiness, which causes the 

floor to feel softer. The sturdiness also protects SPC flooring against dents and wear.


    6.Floor Plank Insulation


    Insulation capabilities vary from one floor type to the other. If you prioritize sound insulation, go for a floor plank 

that has a thicker core like WPC. Because they do not have thick cores, LVT and SPC flooring perform poorly when it comes 

to absorbing noise than WPC floor. The thickness absorbs impact sounds, which reduces the noise that the floors produce as 

you walk on them. 


    7.Durability of Vinyl Planks


    While all three floor types are designed to last for an extended period of time, their durability varies from one floor 

type to another. In most instances, durability of vinyl floor is determined by how thick the top wear layer is. 


    Even so, SPC floor is not as thick as WPC flooring. However, the former are denser than WPC floor - an aspect that 

makes them more resistant to damage arising from heavy weight or impacts. Since they do not tear or wear easily, SPC floor 

become ideal for areas that are prone to high traffic.


    8.Cost of Vinyl Planks


    Vinyl planks are generally not as expensive as other forms of flooring. However, out of WPC, SPC and LVT flooring, SPC 

flooring tends to be the most affordable. 


    9.Resistance to High Temperature


    While LVT, SPC and WPC flooring can be installed in rooms that have high moisture exposure, not all of them can 

withstand high temperatures. WPC and LVT floor do not work well in spaces that experience high temperature changes. If you 

have such spaces, carpet grain SPC flooring will 

perform much better compared to the other two. This is because SPC floor have a denser core that causes them to resist 

contractions and expansions compared to WPC floors. 


    10.Environmental Friendliness


    Eco-friendliness of vinyl floors depends on the materials that are used to make them. Since WPC and 

Wood grain LVT flooring contain plasticiser, a 

material that is not eco-friendly, they are not considered environmental friendly. SPC flooring do not contain artificial 

materials like glue and plasticiser. These vinyl floors are therefore considered eco-friendly - which makes them a great 

choice for pets and kids.

Active Cashmere | Luxury Innovation and Modern Design

    Consumers will now be able to enjoy all their favorite qualities of cashmere without any of the drawbacks of this 

typically delicate fabric. Active Cashmere is the first performance-based 

luxury cashmere that is water repellent and durable among other key characteristics that reinvent the way cashmere is worn.


    Active Cashmere perfectly blends quality and function by utilizing an innovative fiber treatment process that enhances 

the cashmere’s natural qualities. Active Cashmere garments are breathable and have a comfortable and soft hand feel. The 

proprietary process allows the cashmere to be machine washable with no shrinkage, retaining the garment’s initial shape 

and form, and significantly reducing any chance of pilling, felting, fuzzing, or discoloration on the cashmere. At the same 

time, the machine washable series is water-

resistant: water repels off the garment’s surface eliminating any absorption and wetness that typically would occur with 

cashmere and maintaining complete dryness on the inside of the garment. Any water on the cashmere is limited to the surface 

and dries within minutes, whereas traditional cashmere can stay wet for up to an hour causing the immediate odor.

     

    The debut Active Cashmere collection launches direct-to-consumer this Fall 2020 via their website and in select 

retailers for Winter 2020 / 21. The collection ranges between lounge, leisure, and active pieces that are versatile, in 

addition to core items that serve as all-purpose wardrobe staples. The modern aesthetic and refined design approach 

combined with superior functionality is set to transform the perception of cashmere in today’s marketplace. Whether worn 

in an outdoor social setting, for recreational activities, during or post-workout or simply as day-to-day wear, 

mixed color series provides a solution to our 

fluid new-age lifestyle.


    The pieces range from a sweatshirt-inspired sweater (a new take on a classic crew) to a cropped sweater and sweatpant 

set, to short sleeve tops and shorts, to midweight and lightweight long sleeves. The majority of the collection utilizes 

WHOLEGARMENT knit techniques that make the seamless 

wholegarment series proving both minimalism and comfort. The craftsmanship on the material and knitting 

construction provides for quality, breathable and long-lasting pieces that can serve our year-round cashmere needs for 

years to come.

    Active Cashmere is founded by DanRoy, a family-owned company deeply rooted in Scottish cashmere heritage with over 60 

years of experience in the industry. Together with Todd & Duncan, the world’s largest and finest Scottish cashmere mill, 

DanRoy is the first company worldwide to infuse this treatment and proprietary process into both the cashmere yarn and 

knitting process, while maintaining the highest quality and sustainability standards. 


    Unlike other chemical processes, the heavy cashmeres 

series technology lasts for over the life of the garment and the treatments used are non-toxic, non-hazardous, hypo-

allergic, and have no ancillary impact on the environment. As industry veterans, DanRoy is a proud member of CCMI, the 

cashmere organization that sets the global standard for quality. They utilize a fully sustainable supply and 

production chain, sourcing the highest grade and ethically-sourced raw material, working with manufacturers who recycle 

their water and reduce water usage, and eliminating fabric waste through WHOLEGARMENT knitting techniques.

    Wool fabrics can be classified by their production technology — the worsted and woolen ones. 

Woolen cashmere series are spun from short fibers, 

while worsted wool is made from long and fine ones. Compared to woolens, worsted wool fabrics are brushed in two 

directions with special brushes. Wool yarn differs in quality: it is bulky for woolen fabrics and smooth for worsteds.

    Worsted cashmere series are lighter, smoother 

and more durable, but provide less warmth. However, they are better at keeping off rain. Worsted wool requires more 

processing (remember, it is made of long staple fibers only), it tends to be more pricey compared to woolens. The most 

common uses for worsted fabrics are suits and tailored clothes.

The best home gym equipment buys in 2021

    Searching for the best home gym equipment for home use? Whether you now prefer working out from home, in your newly-

built home gym that is, or you are planning to return to your gym but you want to take your own gear, see below for our 

top-rated exercise equipment. We're talking everything from yoga blocks to spin bikes and aerobic steppers, for teeny 

homes, smaller budgets or even if you want to spend a few ￡￡￡s on the best equipment you can buy right now.

    Put that gym membership money into your savings account and get sweaty inside your living room, garage, your bedroom or 

even a garden (weather-permitting) –  or your new dedicated home gym, of course. Keep scrolling for home gym 

equipment buys to spend your money on in 2021. You'll see a quick rundown below, where you can click through to buy 

each product, or scroll further down this page for full reviews.

    If you are searching for a budget-friendly and easy to use an

exercise bike for home use, then this one should be it. We've been using this exercise bike for quite some time 

now, five times a week, and we are impressed. Not only is it quite compact to store, but it also has a range of workout 

programmes so you can mix up your workout routine. That and it has four user settings so more than one person can use the 

bike in your home, while there are 32 resistance levels to offer a sweaty workout.


    When in use
On initial setup, you can set a user programme from one to four and input your gender, age, weight and height so it 

knows who is using the machine. We've used this spin bike in 

manual mode and tried every one of the programmes. We prefer the programmes as they give structure to our workout and keep 

us motivated, and it's even better than you can tailor them to suit your needs. By this, we mean that you can input a 

time or distance, or the number of calories you'd like to burn, and the programme will run until you reach your goal. 

You can also set the 'load' which is the starting resistance, based on your fitness level or how hard you want to 

push yourself. This bike automatically ups the resistance for you, though you can change it at any time by turning the flat 

button on the console. After your workout is finished, the machine will beep to let you know. From here you can either 

finish or head to manual mode to cool down.


    Practising yoga at home? You can't go wrong with the Yoga items

: they feature alignment markers so that you know where your hands and feet should be while posing. It's great 

for those who usually attend a yoga class and rely on help from their instructor when going from one position to another.

    An easy (read: fun) way to get your heart rate up, this one is our pick of the best fitness trampolines you can 

buy. Fitness trampolines are smaller versions of your classic outdoor trampoline and are otherwise known as a 

trampette.


    When in use


    This piece of fitness equipment has been popular for quite a while now, and it's easy to see why: jumping on a 

fitness trampoline is considered moderate to vigorous-

intensity exercise. This device is easy to assemble as you only need to attach the non-slip feet on, it has a solid 

and stable construction that's ideal for aerobic use AND it's super affordable. Just start bouncing!


    If it's a running machine you are after, then the treadmill is our top recommendation. Not only does it feature a 

cushioned deck for protecting your joints when jogging, sprinting or running, but it features a range of pre-set programmes 

and adjustable incline for simulating uphill running.


    When in use
Boasting easy to use buttons and a seven-inch display, this treadmill

allows you to adjust speed and incline settings safely, without the need to look down. You can also use this machine 

for heart rate training, as well as tracking time, pulse, speed, incline, distance and calories burnt. There are 43 

workout programs at different intensities for you to enjoy, and a 15 per cent incline (at 15 levels) to really make you 

work up a sweat. Use the free tablet holder for watching Netflix while working out, or, Kinomap allows you to run stunning 

routes from all over the world, inside your home.

    If you don't have enough room in your home for a home gym (same) then consider a 

pull up bar. Use this sturdy bar for pull ups, chin ups and 

push ups, and then pop it away underneath your bed or sofa after use. 


    If you want to have flat and lean abs, then the sit up bench is 

just best for you. Aside from this, it provides a lot of benefits. Strengthens your core - keep in mind that your core 

is the area of your hip flexors, abs and lower back. By means of having a stronger core, you will be able to move and lift 

better. And the sit up exercise bench can especially help you strengthen your core.

Covid-19: Disinfection Robots Are Being Deployed

    Robots using different technologies are being deployed on the frontline in the fight against Covid-19. Among these 

robots, disinfection robots are of particular interest. A 

division of Siemens has produced one such robot in just a week.

    Models using hydrogen peroxide vapor (HPV) and ultraviolet (UV) light are moving through hospitals, health centers, 

government buildings, and public centers across the globe in a bid to disinfect surfaces. The use of automated 

air disinfection machines not only reduces human 

exposure to the virus but is also proving to be more rigorous and effective in decontaminating spaces. Some of the 

robots incorporate bulbs that emit concentrated ultraviolet-C (UVC) light.

    Danish company UVD Robots is manufacturing robots that are able to disinfect patients and operating rooms in 

hospitals thanks to powerful short-wavelength UVC lights that emit enough energy to eradicate the DNA or RNA of any 

microorganisms that are exposed to them. US-based Xenex also counts on UVC light to annihilate the virus on 

“high touch” hard surfaces, such as bed rails, trays and call buttons. Melinda Hart, media relations director 

at Xenex, explained that the radiation damages the structure of genetic material and prevents particles from 

making more copies of themselves:

[blockquote]
    
        “UV light has been used in this area for a long time and there are dozens of technologies out there that use 

mercury bulbs to emit a continuous stream of UV light. What makes our LightStrike Germ-Zapping Robots so different is that 

they use a pulsing Xenon lamp not a mercury bulb.This emits intense flashes of germicidal light, which are able to 

deactivate a pathogen very quickly so it can’t reproduce and mutate.”
    
[/blockquote]

    The LightStrike robots, which are now being used in Europe, Asia, and the US, can disinfect a hospital room in 20 

minutes and have been proven to reduce the spread of bacterium and bugs such as MRSA (Methicillin-resistant Staphylococcus 

aureus) and C. diff (Clostridium difficile). 

[blockquote]
    
        “Covid-19 is not yet available in a commercial lab for testing but we have tested against Middle Eastern 

Respiratory Syndrome (MERS) and other surrogate viruses. Our robots were able to deactivate those quickly, so we are quite 

confident that they are destroying Covid-19.”
    
[/blockquote]

    An Intelligent Solution

    At Siemens Corporate Technology China, the Advanced Manufacturing Automation (AMA), which has a focus on special 

and industrial robots, unmanned vehicles and intelligent equipment for robotic applications, also moved quickly to help 

tackle the spread of the virus. The laboratory produced an intelligent disinfectant robot in just one week, explained 

Yu Qi, head of its research group. Its model, which is powered by a lithium battery, distributes a mist to neutralize 

Covid-19 and can disinfect 20,000 to 36,000 square meters in one hour.

    For Yu Qi,  many disinfection machines available on 

the market combine a petrol-driven mistorizer gun with an electric chassis. However, on-site refueling is neither 

clean nor convenient, so the team decided to develop purely electric robots.

[blockquote]
    
        “An omni-directional camera platform on the top transmits videos and information in real time, enabling the 

operator to remotely locate affected areas and control the sterilizing. Considering the multi-scene adaptation, the 

disinfectant robot project designed a caterpillar chassis which has the ability of 35-degree slope climbing and 160mm-

height-of-obstacle crossing. It means the robot can be widely used in hospitals, bus stations, metro stations, 

manufacturing factories and canteens etc.”
    
[/blockquote]

    Disinfecting PPE

    Melinda Hart, from Xenex, explained robots are now also being used in pods to disinfect mobile and high-touch 

complex equipment, such as ventilators and scanners. Equipment can be wheeled in and the LightStrike will be effective 

on anything within the pod.

    “Our robots and pods are being used to disinfect masks where there are shortages of personal protective equipment 

(PPE). They can disinfect hundreds of masks in one day, which can make a real difference.”

    YOUR HOME IS now your workplace, playground, meditation studio, dine-in restaurant, neighborhood 

bar, refuge, and movie theater. The point being, you're spending a lot of time in it. You may as well prevent the 

air inside from making you sick. Indoor air is dirty. Particulate matter, volatile organic compounds, and vaporous 

chemicals seep in through our ventilation systems and the weatherstripping around windows. Indoor plastics, furniture, 

paint, and also flooring off-gas noxious fumes. An air sterilizer 

won't do much good if you're not vacuuming regularly and changing the filters in your home's HVAC 

system, but if you live where there's a lot of pollution or wildfires, it could help a lot.

    Whether it is the eradication of biofilm or treating wounds in locations not conducive to sharp debridement, ultrasonic 

debridement can be a key tool for promoting improved wound healing.The surgical debridement of nonviable tissue is 

essential in the wound care process. While sharp debridement with or without pulse lavage is the most common method, the 

use of an ultrasonic wound debridement machine

is a more recent option that one should consider. Physicians originally developed ultrasonic debridement for 

dentistry in the 1950s and later adapted it for debulking soft tissue and dissecting bone.

    Forget about the hassle of ice packs, cold therapy machine

s are the easiest, most effective way to apply for continuous relief from joint pain and swelling and inflammation. 

Whether you’re recovering from surgery, recovering from a workout, or simply seeking relief from a painful medical 

condition, a cold therapy machine can help speed your recovery and ease the pain.

    Studies in the early 1970s suggested that wrapped sterilization 

trays remained sterile for varying periods depending on the type of material used to wrap the trays. Microorganisms 

were found to penetrate single-wrap muslin as early as three days, and double-wrap muslin and single-wrap two-way crepe 

paper in 21 to 28 days when stored on open shelves. Based on these studies, the Joint Commission on Accreditation of 

Hospitals (now Joint Commission of Healthcare Organizations) required that hospitals provide an expiration date on wrapped 

surgical trays, indicating a time when the trays would no longer be considered sterile. In a 1984 article, Mayworm 

criticized the scientific basis for dating sterile surgical trays. He noted that "time doesn't contaminate 

products, events do." He then listed the following factors, which contribute to the contamination of product: 

bioburden (contamination in the environment), air movement, traffic, location, temperature, humidity, and the barrier 

properties of the wrap material. He stressed that when the proper wrap materials along with appropriate sterilization 

techniques were used, surgical trays should remain sterile unless damaged. Subsequent studies demonstrated that the sterile 

integrity of surgical packs was maintained for at least one year and no trend was found toward increased probability of 

contamination over time. In this latter study, no differences were observed among the wrapping materials studied (i.e., 

two-ply reusable, nonbarrier wovens, both new and previously used; disposable, barrier nonwovens; and paper/plastic peel 

pouches). These studies were conducted under ideal circumstances. Sterility may be more difficult to maintain under actual 

use conditions where movement and storage conditions may damage wrap materials.

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Keyboard and mouse basics

    Keyboard and mouse basics

    This article is about the introduction of the keyboard mouse PC item.

    Using a keyboard

    Whenever you use a desktop computer or laptop, you’ll probably use a [url=http://www.keyboardoem.com/computer-

keyboard/]computer keyboard[/url]. The most common kind is called a ‘QWERTY’ keyboard. QWERTY describes the top row of 

letters on the keyboard.

    What a keyboard looks like

    A keyboard is for putting information including letters, words and numbers into your computer. You press the individual 

buttons on the keyboard when you type.

    The number keys across the top of the keyboard are also found on the right of the keyboard.

    The letter keys are in the centre of the keyboard.

    The symbol keys to the right of the letters include symbols such as the question mark and full stop.

    The keys that surround the letters, numbers and symbol keys on the left, right and bottom of the keyboard help you to 

choose where and how you type.

    There are several types of keyboards, such as [url=http://www.keyboardoem.com/computer-keyboard/gaming-mechanical-

keyboard/]gaming mechanical keyboard[/url], keyboard and so on.

    Using the keys

    When you open a document or click in a box to type, you will see a vertical flashing line. This is the cursor, it shows 

you where you are about to start typing on a page or screen.

    Pressing the 'shift' key allows you to type capital letters and the symbols at the top of the keys.

    The 'shift' keys are on the left and right of the keyboard, with the arrow pointing upwards.

    For capital letters, hold down the 'shift' key and hold and type the letter.

    For symbols at the top of a number key, press down the symbol key and then type the symbol. You can use the 

'shift' key to type any symbol at the top of a key.

    The 'caps lock' key allows you to write in capital letters. To turn it on, press it once and type. To turn it 

off, press it again.

    Putting in spaces, moving your cursor and deleting text

    The 'space bar' puts a space between words. Press it once to put in a space.

    The 'tab' key puts a bigger space between words. Press it once to put in a space.

    The 'enter' key moves your cursor down a line.

    The 'arrow' keys allow you to move your cursor in all directions on the page or screen - up, down, left and 

right.

    To delete your typing you need to put your cursor to the right of a word. Press the 'backspace' button to 

delete your word. The cursor will move to the left and delete as it goes.

    Using a mouse

    There are lots of different styles of computer mouse, but most 

have a left and a right button.

    To hold your mouse, rest your hand over it and put your index finger on the left button and your thumb resting on the 

side. The cable needs to be pointing towards the computer. The mouse needs to always be in contact with a mouse mat, desk 

or hard surface.

    You use your mouse to move the cursor around the screen. The cursor changes, depending on what you are doing on the 

computer. As an arrow you use it for moving and selecting things, as a hand for clicking on links when you are on the 

internet and it becomes an hourglass when you are waiting for the computer to do something.

    Single clicking

    You single click with the left mouse button to select things. Just quickly left click and then let go of the button.

    Double clicking

    You double click with the left mouse button to open things, such as a folder. You need to double click quickly, think 

about the ‘knock, knock’ you do on a door.

    Drag and drop

    Drag and drop is when you move something from one place to another. 

    First select the item with the left mouse button and keep the button pressed down. Then move the mouse and the item on 

screen will move with the cursor. When you have the cursor and item in the position you want, release the left mouse 

button.

    The item will now be dropped to where the cursor is positioned on the screen.

    You use drag and drop to move things around your computer, such as files between folders.

    Right button

    If you ever accidently click the right mouse button, a list of computer commands will appear. To remove the list just 

move the mouse and single click the left button.

    Laptop trackpad or touchpad

    Laptops can have a built in mouse within the keyboard. This is operated by finger touch. This specialised surface is 

used instead of a mouse and needs only very short finger movements to move the cursor across the display screen.

    Improve your computer skills

    Why not develop your computer skills - there are courses for beginners and beyond. These range from free online 

learning through to training, which can lead to qualifications.

    While the gaming keyboard mouse

 industry has almost completed its quest for true gaming perfection, many of today’s gamers still find themselves 

asking that age-old question – should I choose a wired or wireless gaming mouse?

    It’s a question that has plagued many over the last couple of decades, with consumers struggling to decide whether or 

not the benefits of wireless technology actually outweigh the reduction in gaming performance they sadly lose.

    That being said, thanks to huge leaps forward in technology, the gap between wired vs wireless 

gaming mice has now become much less apparent. Today’s mice come equipped with new technologies that offer 

Lightspeed connectivity and an almost unlimited amount of battery life – making wireless gaming mice more 

popular than ever before. Furthermore, wireless mice now bring fantastic gaming performance to the table that really does 

give their wired alternatives a run for their money.

    With the current batch of high-performance gaming mice giving consumers the ultimate headache when deciding which one 

to choose, we thought we’d whip this article together explaining the differences between wired and wireless gaming mice. 

We’ll be looking at the main specifications that affect gaming performance, the main differences between the two 

technologies, and whether or not you should choose wired or wireless for your next gaming mouse purchase.

    So, with that in mind, let’s waste no further time and dive straight into it

    THE BEST WIRED OR WIRELESS GAMING HEADSETS TO BUY

    If you’re shopping for a gaming headset, you have 

a lot of options. While there are some great ones out there, it’s easy to pay too much, to accidentally purchase 

a headset that doesn’t work with your desired console or platform, or to get one that’s just uncomfortable. Knowing a 

thing or two about headphones might aid in your search, but gaming headsets have only gotten more complicated to 

shop for — especially the wireless ones.

    For instance, wireless headsets made for Xbox operate without a dongle via Microsoft’s proprietary wireless protocol. 

They’ll only work on Xbox consoles or a PC that has one of Microsoft’s Xbox Wireless Adapters plugged in, in most cases. 

Conversely, if you get a multiplatform wireless headset that includes a 2.4GHz wireless dongle, it’ll likely work on the 

likes of the PS4, PS5, Nintendo Switch (when plugged into the console’s TV dock), and PC — but not Xbox. It’s best to 

buy the headset that mentions support for your preferred platform(s) explicitly, or else there’s a good chance you’ll run 

into some compatibility issues. Of course, you can eliminate most of the guesswork by buying a wired gaming headset 

instead.

    This guide focuses on newer options that you’re more likely to encounter at stores as opposed to older models that, 

while possibly still being worthy of your money, are often tougher to find affordably and easily online. Also, just to 

mention it at the top, I have a large-ish head and that factor obviously played a major role in how I judge the comfort of 

these headsets.

    You’ll find a few categories below, including the best multiplatform wireless headsets that are compatible 

with PC, PS4, PS5, and Nintendo Switch via its dock, the best Xbox wireless gaming headsets, the best PlayStation 

wireless gaming headsets, and the best wired gaming headsets that support the widest variety of platforms, from 

console controllers to phones, tablets, and VR headsets that feature a 3.5mm headphone jack.

    If you have ever found yourself searching for a new pair of headsets, you have encountered the 

overwhelming variety of choice that you are nowadays faced with. Over-the-ear, on-the-ear, noise-

cancelling, wireless, wired… the market seems to be oversaturated with terms, that needs further clarification.

    So, how to choose the best headset?

    To start with, there is no such thing as the best headset. Rather, it all depends on 

your usage and needs. How much time you spend on the phone, what kind of job you do, whether you work in an 

open office or what type of phone you’re using – all of these factors will influence 

your choice.

    But let’s take one step at a time and focus on how to choose 

between wired and wireless headsets in the first place. For that purpose, we will 

need to look at different work styles, as they play a key role in your choice between wired and 

wireless headsets.

    If you spend most of your time at your desk, you are probably what is generally defined as desk 

worker. You are often on calls with customers, colleagues or other stakeholders. You probably 

use desk phones most, but Microsoft Teams or Skype for Business are also part of 

your daily routine. For you, clear audio has the utmost importance – there is no place 

for questions like “What? Could you repeat, please?”. Perceiving the slightest change in the tone of 

voice of your caller can make a great difference in your job. You don’t want to worry about your 

equipment – it should work easily and instantly, allowing you to simply focus on the call and the 

customer.

    If you find this description to be an accurate representation of your workstyle and needs, you will 

then be satisfied with wired headset.

    Wired headsets often offer a higher definition audio quality than wireless 

headsets, while also minimizing the risk of interferences that can happen with wireless signals. This 

guarantees perfectly clear audio. At the same time, being plug-and-play, wired headsets can be put in use in no 

time – avoiding wasting precious seconds in setting up and connecting your device.

    But what if you would consider yourself a road warrior instead? You spend most of your time 

on-the-go – in your car, on public transport – running around 

to different meetings in the city. Being able to make use of the time you have in between 

meetings is of extreme importance to you. That is why you need a device that enables you 

to easily take calls from both, your PC and mobile, in the office and on-the-road. You need to be able 

to move quickly between working situations, while still hearing and being heard clearly.

    Or maybe you’re a corridor worker. You spend most of your time working in the office, both at your desk 

and in meetings. You walk a lot around the office building, and you need a device that allows you to talk 

while freely roaming office corridors.

    In both cases, a wireless headset would be more suitable for you.

    Office headset give you the hkmenspa 

to move as you like, walking or even running around without the risk of getting tangled in any cords – and 

still being able to hear and be heard perfectly. And with most devices nowadays being Bluetooth-enabled, you will 

be able to easily connect your wireless headset to both, your mobile and PC.

HOW DO GLOW PLUGS WORK?

    HOW DO GLOW PLUGS WORK?
    No matter how you look at it, car technology has come on leaps and bounds over the past decades. And, while some of 

these advances are immediately noticeable and appreciated, such as electric windows and smoother suspension systems, 

others, like glow plugs, are hidden under the bonnet and forgotten about unless something goes wrong. This shouldn’t be 

the case. Heat glow plug technology has significantly improved, with 

BERU, for example, dramatically improving the time it takes to start your diesel car – especially on cold mornings.

    So, let’s appreciate the hidden and take a look at BERU glow plugs – what are they, the different types available and 

how they compare to the competition.

    What is a glow plug?
    To get started, we need to go back to basics: what is a glow plug? And, what does a glow plug do?

    A glow plug is a heating element that heats incoming fuel and air to encourage efficient fuel combustion in a diesel 

engine. The fuel combustion starts your engine so that you can drive. Each cylinder of your engine has one glow plug, 

either in the pre-chamber (pre-chambered engines) or in the combustion chamber (direct-injection engines).

     GLOW PLUG SYSTEMS
     The starting process of an engine heavily influences the exhaust gas values of a vehicle. Together, glow plugs and 

their connected components (glow plug control modules, glow plug relays and glow plug combustion sensors) play an important 

role in reducing emissions helping to protect the environment.

    Glow plug is specialized heating devices used to aid in the starting of diesel 

engines. They are similar to spark plugs in design; however, they differ in their primary function. Instead of producing a 

timed spark to ignite the fuel mixture, like spark plugs do, glow plugs simply serve to produce additional heat that aids 

the diesel engine combustion process during cold starts.

    Diesel engines rely entirely on the heat generated by cylinder compression to ignite the fuel mixture. When glow 

plugs begin to fail, this additional heat that aids the combustion process is gone, and the engine may become more 

difficult to start, especially in cold weather.

   Another symptom of faulty glow plugs is black smoke being observed during start up, indicating the presence of 

unburned fuel due to an incomplete combustion process. In this guide, we will cover how to test the resistance of glow 

plugs to determine if they are functioning properly.

    Part 1 of 1: Testing your glow plugs

    Step 1: Determine the multimeter’s resistance value. Before testing the terminals, you must determine the resistance 

value of your digital multimeter. To do this, turn the multimeter on, and set it to read in Ohms.

    Once the multimeter is set to read in Ohms, touch the two leads of the multimeter together and examine the resistance 

reading that is displayed.

     If the multimeter reads zero, try changing the setting of the multimeter to a higher sensitivity until a reading is 

obtained.

    Record this value on a piece of paper, as this will be an important value in calculating the resistance of your glow 

plugs later on.

    Step 2: Locate the glow plugs in your engine. Most glow plugs are installed in the cylinder heads and will have a heavy 

gauge wire, similar to a regular spark plug wire, attached to them.

    Remove any covers that may be obstructing access to the glow plugs, and use the flashlight for additional illumination 

if necessary.

    Step 3: Disconnect the glow plug wires. Once all of the glow plugs have been located, disconnect any wires or caps 

attached to them.

    Step 4: Touch the negative terminal. Take your multimeter and touch the negative leads to the negative terminal on your 

vehicle’s battery.

    If possible, secure the lead to the terminal by tucking it inside or underneath the clamping mechanism of the post.

    Step 5: Touch the positive terminal. Take the positive lead of your multimeter and touch it to the terminal on your 

Mitsubishi glow plugs.

     Step 6: Record the glow plug’s resistance. With both leads touching the terminals, record the resistance reading that 

is indicated on the multimeter.

     Again, the reading that you get should be measured in Ohms (Ω).

     If no reading is obtained when you touch the glow plug, make sure that the negative lead is still in contact with the 

negative battery terminal.

    Step 7: Calculate the resistance value. Calculate the true resistance value of the glow plug by subtracting.

    The true resistance value of the glow plug can be determined by taking the resistance value of your multimeter 

(recorded in Step 2) and subtracting it from your glow plug resistance value (recorded in Step 6).

    Step 8: Evaluate the resistance value. Compare your calculated true resistance value of your glow plug with the factory 

specification.

     If the glow plug resistance exceeds the specification or falls out of the acceptable range, then the glow plug must be 

replaced.

     Step 9: Repeat for other glow plugs. Repeat the procedure for the remaining glow plugs, until they have all been 

tested.

     If any of the glow plugs fail the test, it is recommended that the entire set be replaced.

     Replacing just one, or a few, of the glow plugs may cause engine problems similar to a faulty glow plug if the 

resistance readings are too far apart.

     For most vehicles testing the resistance of a glow plug is a pretty simple procedure, granted the glow plugs are in an 

accessible location. However if they are not, or this task is not something that you feel comfortable taking up on your 

own, this is a service that any professional technician, such as one from YourMechanic, should be able to perform quickly 

and easily. If necessary, they can also replace your [url=http://www.shuangsongcn.com/heat-glow-plug/isuzu-glow-

plugs/]Isuzu Glow Plugs[/url] so that you can start your car like normal.

      There are very few glow plugs that are considered universal plugs (OS' #8 plug is an example). For the most part, 

the type of fuel you are running will impact the kind of glow plug you need to use. Another component in the nitro fuel is 

nitromethane. The Nitro Percentage of your fuel determines the ignition point as well; in other words, the more nitro you 

run, the more you advance the ignition point. Ideally, the ignition point will be when the engine is at top dead center 

(TDC). This will force the piston down and back up again for another stroke. But when you run higher nitro content and 

don't switch to a colder plug, you will advance the ignition point and result in less-than-optimum performance, since 

the piston is still on its compression stroke (the upward stroke) when the air/fuel mixture is ignited.
        In general, the higher the the nitro percentage, the colder the plug should be. Conversely, the lower the 

nitro percentage, the hotter the plug should be.
        Glow plugs are an engine management component that is found on vehicles equipped with diesel engines. Their purpose 

is to preheat, and help warm up the engine’s cylinders so that diesel combustion can occur more easily. They play an 

especially important part in warming the vehicle’s cylinders during cold starts, where starting the engine is most 

difficult. Glow plugs use an electrode which will warm up and glow orange when current is applied. When the glow plugs 

have an issue, they can usually cause problems with the driveability of the vehicle. Usually bad or failing glow 

plugs will produce a few symptoms that can alert the driver of a potential issue.
    1. Engine misfires or decrease in power and acceleration
    Engine misfires are one of the first symptoms of an issue with the vehicle’s glow plugs. If the 

Mazda Glow Plugs malfunction they will not provide 

the additional heat that aids in diesel combustion, which may cause the engine to experience misfires. The misfires may 

cause a loss in power, acceleration, and even fuel efficiency.
    2. Hard starting
    Another symptom of an issue with the vehicle’s glow plugs is hard starting. Unlike gasoline engines, which use a 

spark to ignite the fuel mixture, diesel engines rely solely on cylinder pressures to ignite the diesel fuel mixture. If 

the glow plugs fail, the engine will have to overcome additional pressure in order to ignite the mixture, which may result 

in hard starting.
    3. Black smoke from the exhaust
    Another symptom of an issue with the glow plugs is black smoke from the exhaust. Faulty glow plugs may disturb the 

sensitive diesel combustion process, which may cause the engine to produce black smoke from the tailpipe. Black smoke can 

also be caused by a wide variety of other issues, so having the engine properly diagnosed is highly recommended.
    Glow plugs are found on virtually all diesel engines, and play an important role in starting and operating the engine. 

If your vehicle is displaying any of the symptoms above, or you suspect that your glow plugs may be having an issue, have 

the vehicle inspected by a professional technician, such as one from yourMechanic, to determine if the glow plugs need 

to be replaced.
                    
    Continuous Improvement
    The diesel engine is continuously being improved, in terms of its fuel consumption, power outputs and, ultimately, 

refinement. Drivers of modern diesel vehicles expect to be able to just jump in, turn the key and go. It’s no longer 

acceptable to have to wait 8 to 10 seconds for a glow plug light to go out before you can start the engine. One of the 

reasons this is possible is because of the technical advances that have been made in glow plug design, in particular with 

the development of both twincoil technology and the latest third generation of glow plug – the New High Temperature 

Ceramic type, or NHTC. In this article we take a closer look at these latest types of plugs in more detail; the 

manufacturers spearheading the new technologies, and the major motor manufacturers adopting them as OE.
                    
    Twin -coil Technology
    Using twin-coil technology, Toyota Glow Plugs 

can be made to heat more quickly and then self-stabilise at the correct temperature. This type of plug is more resistant to 

misuse, as it will prevent overheating of the main coil and allows longer post glow periods, giving cleaner exhaust 

emissions.
                    
   Each twin-coil glow plug has been designed and tested to 7,000 heating cycles before being approved for production. This 

means that if the engine is started from cold twice per day, the glow plug could have a life expectancy of 10 years or 

more.
                    
   Glow plugs are probably far more intricate than you may imagine them to be. It takes precision 男同志按摩 welding to join the 

heating coils, which are then tested for maximum temperature and rate of temperature rise. This is to ensure that the glow 

plugs reach 850°C within a specified time.