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- Создано: 16-11-21
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Nitrile vs. Latex Gloves: What’s the Difference?
Описание: Nitrile vs. Latex Gloves: What’s the Difference? Nitrile and latex are two of the most common types of general-use disposable gloves. Choose the best material for protecting your hands. Single-use Gloves are not an essential accessory on most days, but they can be an effective illness-preventing measure. When you should wear gloves depends on what you’re doing, according to the Centers for Disease Control and Prevention (CDC). The type of disposable gloves you wear is up to you. Gloves used as personal protective equipment (PPE) are made of many different materials; some are used in chemical laboratories, while others are best for medical workers. Nitrile and latex are two of the most common materials for general-use disposable gloves. Before deciding between nitrile vs. latex, there are a few questions to answer: What are nitrile gloves, and how do they compare to latex? What Are Nitrile and Latex Gloves Used For? PPE, such as a face mask, is most often used by people who work with the public, including lifeguards, first responders and healthcare providers. When it comes to nitrile vs. latex, both serve the same basic purpose. Latex and Nitrile Gloves are lightweight, stretchy hand coverings that protect the wearer from direct contact with whatever they may touch, which defends first aid and healthcare providers from bloodborne pathogens. They can also prevent foodborne illnesses and skin irritation caused by household cleaners, as well as the spread of infectious diseases. The CDC recommends wearing PPE when caring for someone who is sick and when sanitizing and disinfecting your home. Frequently-touched surfaces like doorknobs, light switches and countertops harbor tons of germs, and the cleaning products that actually disinfect can be harsh on your skin. While disposable gloves help keep you safe by blocking direct skin contact, they are not the most effective way to prevent getting sick. The most important protective measure is frequent and thorough hand washing. Always wash your hands with soap and water after removing gloves. The U.S. Food & Drug Administration (FDA) does not recommend reusing or washing disposable gloves or other disposable PPE — effectiveness wanes with repeated use. Why Would Someone Choose Nitrile vs. Latex? Although nitrile and latex gloves are incredibly common forms of PPE, there are a few reasons why you might pick one over the other. The first is whether you or anyone in your household has a latex allergy. The use of Latex Gloves can cause a rash, hives, swelling and more when used by someone with a latex sensitivity. Gloves made from “synthetic materials, such as polyvinyl chloride (PVC), nitrile, or polyurethane,” are safer for people with latex allergies, according to the FDA. Latex gloves are popular due to their elasticity and comfort, says the Occupational Safety and Health Administration (OSHA) guide to personal protective equipment. Nitrile gloves, on the other hand, are more durable and resistant to punctures and chemicals. Overall, nitrile gloves may be the more versatile option. Whichever you choose, always stock protective gloves in your garage, shop or cleaning cupboard to keep your hands safe and sanitary. Latex: Widely considered to be the most comfortable glove type available, offering a ‘second skin’ feeling, Rubber Gloves offer protection against water-based chemicals, biological hazards, and skin irritants. However, they generally aren’t as robust as nitrile gloves and can result in allergic reactions to latex.
Дата Публикации: 16-11-21
The 7 Things You Need to Know About Velvet
Описание: The 7 Things You Need to Know About Velvet Used widely across fashion and interiors, velvet has long been a go-to fabric for creating a high-style look. But it can come off as a little intimidating—you might feel it reads too extravagant or that caring for it is too troublesome. We’re here to dispel those rumors and to let you know that velvet is in fact a practical option for any home. Read on to see what makes it one of our favorite fabrics. It Is Surprisingly Versatile The Holland Velvet fabric feels and looks more luxurious than most textiles, but that doesn’t mean it’s any less adaptable in the home. Because it’s available in such a wide array of forms—from large pieces such as upholstered beds to smaller options like throw pillows—you can go all-out or keep it simple. It also transcends trends and styles beautifully: Its luminous sheen makes it especially fitting for a glamorous room, but it can feel equally at home in relaxed or modern spaces. It Has Historical and Royal Roots There are several schools of thought as to where and when velvet originated, but it’s generally agreed that it was somewhere in the Far East—likely China—around the 13th century, if not earlier. Velvet then made its way west along the Silk Road, becoming immensely popular during the Italian Renaissance. (In fact, the word “velvet” comes from the Italian word velluto, meaning “shaggy.”) Before the advent of modern industrial looms, Germany Velvet was quite costly to produce—and therefore available only to wealthy and royal families. Nobles in particular were drawn to its ability to accept richly hued dyes. Queen Elizabeth II still wears dyed velvet robes and regalia in formal ceremonies! How It Is Made Because it is not a flat-woven fabric like linen, Sofa Velvet requires more yarn and takes multiple steps to produce. Yarn is first woven together on a loom between two layers of backing. The fabric is then split down the middle, creating two identical pieces, each with the upraised pile that provides its soft, heightened texture. Velvet can be woven from any type of yarn. While in the past it was typically woven from silk, today cotton, linen, wool, and synthetic fibers (often in combination) are commonly used. From leather jackets to high heels, Leathaire Fabric has secured its place as a fixture in the fashion industry, but what makes this quality, durable fabric so popular? Made from animal hides and skins, leather has been used for a variety of items for more than 7,000 years, and it is still a popular textile today. What is Sherpa? Sherpa Fabric resembles the wool-lined clothing worn by the tribe. It is named after the Sherpa people living in Nepal. However, contrary to what the Sherpa people wear; the fabric is typically made of pure cotton; a synthetic fiber like polyester; or a blend of cotton and synthetic fibers. Sherpa is also called faux-sheepskin or faux-shearling. The fabric has two sides. One is the stitched wooly side with a soft and bumpy texture comparable to real fleece; the other side is a smooth knit shell. Together, they make a sherpa material that is both warm and durable. How Sherpa Fabric is made? Sherpa is made from polyester fabric but has some stretch to it. It is not made from wool, although it has that look. Sherpa fleece has two sides一one is a smooth knit, the other is textured to look like fleece from sheep. Knit fabrics are made in one of two basic ways Understanding the ways in which knit fabrics are manufactured will help you see why the topic of knits is so complex. You will see why different knit fabrics behave in such dissimilar ways. Unlike a woven fabric, which is composed of a series of warp (lengthwise) yarns interlaced with a series of weft (crosswise) yarns, a Knitted Fabric is made up of one or more yarns formed into a series of loops that create rows and columns of vertically and horizontally interconnected stitches. A vertical column of stitches is called a wale, and a horizontal row of stitches, a course. Although in a woven fabric, the terms warp and weft refer to the direction of the two sets of yarns making up the fabric, in a knit fabric, these terms describe the direction in which the fabric is produced: A weft knit—which is what hand-knitted fabric is—is one made with a single yarn that’s looped to create horizontal rows, or courses, with each row built on the previous row.
Дата Публикации: 16-11-21
Gas Cylinders
Описание: Gas Cylinders Definition/Introduction A gas cylinder is a containment apparatus that will store a gaseous compound under pressure for use in medical settings. The physical form of the stored compound can be gas and/or liquid, with the ultimate output from the apparatus being gaseous. Gas Disposable Cylinders allow for portable and safe storage of compounds needed in a medical setting. The sizing of gas cylinders has been attributed to a nationally recognized letter, with the more commonly used medical sizes listed below. Gas cylinders are labeled from A to M, with increasing volume as the letters of the alphabet proceeds. E sized cylinders are the most commonly used size in medical settings. E cylinders have a service pressure of 1900 psi, but may be filled up to 10% more to 2200 psi. Higher filling pressure allows for expansion at temperatures greater than 70 degrees Fahrenheit. Issues of Concern Pressure Release Device The release of pressurized gas can be hazardous, and extreme caution should be exercised. Gas pressure levels should be reduced from stored high pressure to a workable, usable level. A pressure regulator should be used in this situation and any time contents are being removed or used from the cylinder. Do not tamper with pressure release devices. Do not use any Heluim Gas Cylinders with visibly defective pressure release devices. Pressure release devices and gas outlets should never be pointed in any direction that could cause harm. While attached to an anesthesia machine, the cylinder valves should be in the off position while not in use. This is to prevent leakage and so that the provider will be notified via an alarm of failure of the pipeline supply of gas. If the cylinder were to be left open and a pipeline gas supply failure occurred, the anesthesia machine would consume the oxygen in the cylinder, and the provider would not be notified until the cylinder was depleted. Safe Usage A Refrigerant Gas Cylinder should be inspected for malfunctions and defects before use. Full cylinders are usually placed with a tamper-evident seal. This is generally a tear-off seal on the outlet of the valve and is removed before use. Proper inspection of a cylinder includes the outlet, pin index safety system, and especially the pressure relief device. The valve outlet should be clean before use. Only use cylinders marked with DOT (Department of Transportation) or ICC (Interstate Commerce Commission). In Canada, cylinders may be marked with BTC (Board of Transportation Commissioners) or CTC (Canadian Transport Commission). A cylinder should be connected to a regulator to bring the compressed, stored pressure down to a working, usable pressure. Inspect the regulator for signs of damage or foreign materials. Safe Storage and Transportation Adhesive Foam Cylinders must be stored upright and secured using a rack, strap, or chain to minimize the chance of falling over. Cylinders should be transported using a cart or carrier. Never drop or hit cylinders, and never drag, roll or slide cylinders, even for a short distance. Only qualified personnel should refill cylinders. While using cylinders, avoid flammable substances, smoking, open flame, or any other incendiary sources. Cylinders should be stored in a dry, cool, well-ventilated area away from exposure to weather. Cylinders should be stored at temperatures less than 125 degrees Fahrenheit/52 degrees Centigrade. Oxygen cylinders have more specific storage requirements than other medical gases. While oxygen cylinders can be stored in the same space as other non-flammable medical gases as long as they are segregated properly, full oxygen cylinders and empty oxygen cylinders cannot be stored together. The separation of full and empty cylinders prevents the accidental usage of an empty Refillable Refrigerant Cylinder during an emergency situation. Partially full oxygen cylinders may be stored in the same location as full cylinders, provided that they are labeled properly. The same formulas can be used in Refillable Heluim Cylinders with pure gaseous form. To calculate for nitrous oxide, however, is only applicable once the pressure drops below 745 psi. This is due to having the liquid and gaseous form within the tank. The pressure will remain constant until 75% of the 1590 L gas is consumed, which is approximately equal to 400 L remaining within the cylinder. From this point until empty, the above formulas apply. Prior to this point, the cylinder must be weighed to determine the amount of gas remaining within the cylinder. The transportation of gas Disposable Cans is highly regulated by both local, state and federal agencies in most countries. In the UD, the Department of Transportation is the governing authority. Further, there are guidelines for the manufacturer to ensure that the cylinders have been tested and are safe. Some of the tests that cylinders undergo include tensile strength, hydrostatic test, impact testing, burst testing and pressure cycling. Once the cylinder is manufactured, it must have all the vital information permanently etched on to the cylinder.
Дата Публикации: 16-11-21
How Vacuum Cleaners Work
Описание: How Vacuum Cleaners Work When you sip soda through a straw, you are utilizing the simplest of all suction mechanisms. Sucking the soda up causes a pressure drop between the bottom of the straw and the top of the straw. With greater fluid pressure at the bottom than the top, the soda is pushed up to your mouth. - This is the same basic mechanism at work in a Vacuum Cleaner, though the execution is a bit more complicated. In this article, we'll look inside a vacuum cleaner to find out how it puts suction to work when cleaning up the dust and debris in your house. As we'll see, the standard vacuum cleaner design is exceedingly simple, but it relies on a host of physical principles to clean effectively. It may look like a complicated machine, but the conventional vacuum cleaner is actually made up of only six essential components: An intake port, which may include a variety of cleaning accessories An exhaust port An electric motor A fan A porous bag A housing that contains all the other components When you plug the Handheld Vacuums in and turn it on, this is what happens: The electric current operates the motor. The motor is attached to the fan, which has angled blades (like an airplane propeller). As the fan blades turn, they force air forward, toward the exhaust port. When air particles are driven forward, the density of particles (and therefore the air pressure) increases in front of the fan and decreases behind the fan. This pressure drop behind the fan is just like the pressure drop in the straw when you sip from your drink. The pressure level in the area behind the fan drops below the pressure level outside the vacuum cleaner (the ambient air pressure). This creates suction, a partial vacuum, inside the vacuum cleaner. The ambient air pushes itself into the vacuum cleaner through the intake port because the air pressure inside the vacuum cleaner is lower than the pressure outside. As long as the fan is running and the passageway through the vacuum cleaner remains open, there is a constant stream of air moving through the intake port and out the exhaust port. But how does a flowing stream of air collect the dirt and debris from your carpet? The key principle is friction. Vacuum Cleaner Brushes and Bag In the last section, we saw that the suction created by a vacuum cleaner's rotating fan creates a flowing stream of air moving through the intake port and out the exhaust port. This stream of air acts just like a stream of water. The moving air particles rub against any loose dust or debris as they move, and if the debris is light enough and the suction is strong enough, the friction carries the material through the inside of the vacuum cleaner. This is the same principle that causes leaves and other debris to float down a stream. Some vacuum designs also have rotating Vacuum Cleaner Brushes at the intake port, which kick dust and dirt loose from the carpet so it can be picked up by the air stream. As the dirt-filled air makes its way to the exhaust port, it passes through the vacuum-cleaner bag. These bags are made of porous woven material (typically cloth or paper), which acts as an air filter. The tiny holes in the bag are large enough to let air particles pass by, but too small for most dirt particles to fit through. Thus, when the air current streams into the bag, all the air moves on through the material, but the dirt and debris collect in the bag. Vacuum Cleaner Variables In the last section, we saw that Vacuum Cleaner Parts pick up dirt by driving a stream of air through an air filter (the bag). The power of the vacuum cleaner's suction depends on a number of factors. Suction will be stronger or weaker depending on: The blockage of the air passageway: When a great deal of debris builds up in the vacuum bag, the air faces greater resistance on its way out. Each particle of air moves more slowly because of the increased drag. This is why a vacuum cleaner works better when you've just replaced the bag than when you've been vacuuming for a while. The size of the opening at the end of the intake port: Since the speed of the vacuum fan is constant, the amount of air passing through the vacuum cleaner per unit of time is also constant. No matter what size you make the intake port, the same number of air particles will have to pass into the vacuum cleaner every second. If you make the port smaller, the individual air particles will have to move much more quickly in order for them all to get through in that amount of time. At the point where the air speed increases, pressure decreases, because of Bernoulli's principle. The drop in pressure translates to a greater suction force at the intake port. Because they create a stronger suction force, narrower vacuum attachments can pick up heavier dirt particles than wider attachments. At the most basic level, this is all there is to a vacuum cleaner. Since the electric vacuum's invention a century ago, many innovative thinkers have expanded and modified this idea to create different sorts of vacuum systems. So far, we have looked at the most typical types of vacuum cleaners: the upright and canister designs, both of which collect dirt in a porous bag. For most of the history of vacuum cleaners, these have been the most popular designs, but there are many other ways to configure the suction system. We'll look at some of these in the next section.
Дата Публикации: 16-11-21
HOW TO WEAR A BEANIE WITHOUT LOOKING LIKE AN IDIOT
Описание: HOW TO WEAR A BEANIE WITHOUT LOOKING LIKE AN IDIOT The cold-weather headwear landscape is a notoriously tricky area to traverse. Beanies For Men for men are basically the only vaguely acceptable option, and let’s face it, they’re hardly held in high regard by followers of fashion. You can’t really blame them either. After all, usually when these woollen warmers stray into the public fashion consciousness, there have been terrible, terrible consequences. However, as is the case with so many things in the world of style – it’s not just a matter of what you wear, it’s also about how you wear it. And with that reasoning very much in mind, we’d like to take to the stand in defence of one of winter’s most misunderstood accessories. If you’ve ever uttered the words, “Hats just don’t suit me” it may be because you’ve simply been wearing the wrong ones. Beanies work well with menswear’s current love of utilitarian workwear, and there are a number of styles to match even the weirdest and lumpiest of face shapes. PICKING THE RIGHT BEANIE FOR YOUR FACE “A beanie is a great staple of your winter wardrobe,” says Sarah Gilfillan, stylist and founder of SartoriaLab, a London-based men’s personal styling service. “But before you head out to buy one, remember that small details can make the difference as to whether or not the style suits you.” If you’re round or square of face, avoid designs that will make you look like Harry from Home Alone. “Choose a beanie without a turn-back cuff, with ribbing and a looser style that can add a bit of height to your face,” suggests Gilfillan. “Also, wear it slightly back off your face rather than pulling it down over your ears.” A bobble hat is another good option for this, but steer clear of anything too ‘out there’. You don’t want to look like Kevin, either. If you have a longer face, Recycled Beanies can work nicely. “Opt for a turn back cuff, which could even be in a contrasting colour or have stripe detailing,” says Gilfillan. “Wear a tighter fitting style that sits snugly on your head to avoid adding any more height.” The Balaclava Ski Mask is named after the town of Balaklava on the Crimean Peninsula. It is basically a hat/mask that covers the entire head and face except for the eyes. Sometimes there are holes in the nose and mouth, sometimes not. You don’t have to wear them all the time—you can roll them up and wear them like a hat, or push the tops under your chin and wear them around your neck like a scarf. Put on a pair of ski goggles, they cover almost any situation. This soft, warm Knitted Balaclava Ski Mask is made out of 100 percent merino wool, so it won’t lose insulation power even if it gets damp through sweat, precipitation, or both. It’s thin enough to fit comfortably under a helmet, making it a great choice for skiers, snowboarders, mountain bikers, or climbers, and it also works well with the hood of a jacket, making it a fine choice for anyone who just hates being cold. Wool is also naturally breathable, drawing warmth and moisture away from your skin and helping to regulate body temperature. Just make sure you care for this balaclava properly, washing it on gentle settings and only when necessary, as it won’t hold up as well as a synthetic garment without good care. Unless you are completely oblivious, it probably won’t come as much of a surprise to learn that the baseball Caps were first brought into existence by a baseball team. That team was the Brooklyn Excelsiors and the year was 1860. But it was another half a century before the concept fully took off. After 1900, the baseball cap became an important means by which to identify teams, as well as offering the practical benefit of keeping the sun out of players’ peepers while pitching and hitting their way around the diamond. The explosion of television sports in the 20th century brought the Baseball Caps into people’s homes and onto their heads. Suddenly, the piqued interest in the peaked accessory saw it become a part of the everyday man’s casual uniform. The idea of only ever wearing one on the field was now – pun fully intended – an old hat. “Today it plays to the wider trend of sportswear infusing contemporary wardrobes,” says Nick Paulson-Ellis, founder of online sportswear store The Sports Edit. “Combine this with the influence of hip-hop figures like Jay-Z and his much-beloved New York Yankees cap, celebrities wearing them incognito, and even Gucci adding upscale versions to recent catwalk shows, and it’s plain to see why the baseball cap will always have a place as a staple menswear accessory.” However, this modern essential’s wide range of variations means it’s a famously tricky item to style. So, when it comes to picking one out, stick to these tried and tested favourites to guarantee yourself a home run. Last summer already, various fashion icons were spotted rocking bucket Hats, as seen just weeks earlier on fashion show runways from some of the most prestigious labels in the industry. In the space of a season, Chiara Ferragni, Emily Ratajkowski and even Kylie Jenner contributed to bringing the bucket hat — long considered the height of uncool — back to fashion’s forefront. But then the successive lockdowns that followed didn’t really give the bucket hat the chance to impose itself as the must-have accessory of the moment. And yet, stars of the fashion world aren’t the only ones who’ve decided that the Bucket Hats are stylish, on-trend accessory. Not everyone waited until 2021 to adopt this headgear, once associated with Irish fishermen, then military kit, before moving into the realm of “fashion” item, often sported by avid gardeners, granddads and generally sun-wary types. Although momentarily in vogue thanks to US rappers in the 1990s — not to mention the UK’s Madchester scene — the bucket hat has never really managed to earn status as a stylish accessory — quite the contrary, in fact. And that’s despite the best efforts of a handful of outsiders, such as hardened festival-goers and the Californian rapper ScHoolboy Q, who made the bucket hat part of his image. The history of bonnets is not lost on Black households. For many Black women and men, wearing Bonnets to bed has been the way of protecting our hair and keeping it moisturized throughout the night. Growing up, it was strictly only for wearing around the house. It was the routine: wake up, take your bonnet off, and go about your morning routine. A bonnet was never seen as a hair accessory to parade around outside; in fact, I remember all the times my mother and I would be running errands, and we’d see a Black woman walking around in her black, silky hair wrap.
Дата Публикации: 16-11-21
Health Benefits of Garlic
Описание: Health Benefits of Garlic 1. Garlic Contains Compounds With Potent Medicinal Properties Normal White Garlic is a plant in the Allium (onion) family. It is closely related to onions, shallots and leeks. Each segment of a garlic bulb is called a clove. There are about 10–20 cloves in a single bulb, give or take. Garlic grows in many parts of the world and is a popular ingredient in cooking due to its strong smell and delicious taste. However, throughout ancient history, the main use of garlic was for its health and medicinal properties. Its use was well documented by many major civilizations, including the Egyptians, Babylonians, Greeks, Romans and Chinese. Scientists now know that most of its health benefits are caused by sulfur compounds formed when a garlic clove is chopped, crushed or chewed. Perhaps the most famous of those is known as allicin. However, allicin is an unstable compound that is only briefly present in fresh garlic after it’s been cut or crushed. Other compounds that may play a role in garlic’s health benefits include diallyl disulfide and s-allyl cysteine. The sulfur compounds from garlic enter the body from the digestive tract and travel all over the body, where it exerts its potent biological effects. Pure White Garlic is a plant in the onion family that’s grown for its distinctive taste and health benefits. It contains sulfur compounds, which are believed to bring some health benefits. 2. Garlic Is Highly Nutritious But Has Very Few Calories Calorie for calorie, garlic is incredibly nutritious. One clove (3 grams) of raw garlic contains: Manganese: 2% of the Daily Value (DV) Vitamin B6: 2% of the DV Vitamin C: 1% of the DV Selenium: 1% of the DV Fiber:0.06 grams Decent amounts of calcium, copper, potassium, phosphorus, iron, and vitamin B1 This comes with 4.5 calories, 0.2 grams of protein and 1 gram of carbs. Solo Garlic also contains trace amounts of various other nutrients. In fact, it contains a little bit of almost everything you need. Garlic is low in calories and rich in vitamin C, vitamin B6 and manganese. It also contains trace amounts of various other nutrients. 3. Garlic Can Combat Sickness, Including the Common Cold Black Garlic supplements are known to boost the function of the immune system. One large, 12-week study found that a daily garlic supplement reduced the number of colds by 63% compared to a placebo. The average length of cold symptoms was also reduced by 70%, from 5 days in the placebo group to just 1.5 days in the garlic group. Another study found that a high dose of aged garlic extract (2.56 grams per day) reduced the number of days sick with cold or flu by 61%. However, one review concluded that the evidence is insufficient and more research is needed. Despite the lack of strong evidence, adding garlic to your diet may be worth trying if you often get colds. Garlic supplements help prevent and reduce the severity of common illnesses like the flu and common cold. 4. The Active Compounds in Garlic Can Reduce Blood Pressure Cardiovascular diseases like heart attacks and strokes are the world’s biggest killers. High blood pressure, or hypertension, is one of the most important drivers of these diseases. Human studies have found Peeled Garlic supplements to have a significant impact on reducing blood pressure in people with high blood pressure. In one study, 600–1,500 mg of aged garlic extract was just as effective as the drug Atenolol at reducing blood pressure over a 24-week period. Supplement doses must be fairly high to have the desired effects. The amount needed is equivalent to about four cloves of garlic per day. High doses of garlic appear to improve blood pressure for those with known high blood pressure (hypertension). In some instances, supplements may be as effective as regular medications. 5. Garlic Improves Cholesterol Levels, Which May Lower the Risk of Heart Disease Dehydrated Garlic can lower total and LDL cholesterol. For those with high cholesterol, garlic supplements appear to reduce total and/or LDL cholesterol by about 10–15%. Looking at LDL (the “bad”) and HDL (the “good”) cholesterol specifically, garlic appears to lower LDL but has no reliable effect on HDL. High triglyceride levels are another known risk factor for heart disease, but garlic seems to have no significant effects on triglyceride levels. Garlic supplements seem to reduce total and LDL cholesterol, particularly in those who have high cholesterol. HDL cholesterol and triglycerides do not seem to be affected. When Fresh Potato plants bloom, they send up five-lobed flowers that spangle fields like fat purple stars. By some accounts, Marie Antoinette liked the blossoms so much that she put them in her hair. Her husband, Louis XVI, put one in his buttonhole, inspiring a brief vogue in which the French aristocracy swanned around with potato plants on their clothes. The flowers were part of an attempt to persuade French farmers to plant and French diners to eat this strange new species. Today the potato is the fifth most important crop worldwide, after wheat, corn, rice and sugar cane. But in the 18th century the tuber was a startling novelty, frightening to some, bewildering to others—part of a global ecological convulsion set off by Christopher Columbus. Fresh Onions vary in size, shape, color, and flavor. The most common types are red, yellow, and white onions. The taste of these vegetables can range from sweet and juicy to sharp, spicy, and pungent, often depending on the season in which people grow and consume them. Farmers have cultivated allium vegetables for centuries. According to the Food and Agriculture Organization of the United Nations, China is the biggest producer of onions worldwide. It is common knowledge that chopping onions causes watery eyes. However, onions may also provide potential health benefits. These may include reducing the risk of several types of cancer, improving mood, and maintaining skin and hair health.
Дата Публикации: 16-11-21
Not all valves are equal: Picking the right material for the job
Описание: Not all valves are equal: Picking the right material for the job Valves come in numerous sizes and configurations and are used in thousands of applications across various industries. Likewise, there are various types of valves used in piping systems. These valves vary by operating mechanism/principle, function and design. Most common valve types and applications Ball valves: Ball Valves are quarter-turn valves that can be used for flow stoppage or flow modulation. They contain a horizontally hollowed-out sphere sitting tightly in the middle of the valve. When the valve is open, the hollow side aligns with the flow. The valve can also be placed in a partially open/closed position. Ball valves work well in high-pressure applications. Butterfly valves: Butterfly valves contain a flat disk/flap that swivels sideways to allow, block or regulate flow. These valves are often used in power plants and wastewater plants as shut off or regulating valves. While they are cheaper and smaller than ball valves, they are not good for high-pressure applications. Check valves: Check Valves allow the flow of media in one direction while preventing flow in the opposite direction. These valves typically have an inlet and an outlet port and operate using differential pressure. They are used to prevent reverse flow — a problematic phenomenon that can occur in piping systems, in which media flows in the wrong direction. This phenomenon can have profound implications such as problematic flow, contamination of the flowing media and damage to the piping system. There are various types of check valves, best suited to different applications. Plug valves: In plug valves, cylindrical or conical plugs are used to control flow. The plug has a horizontal hole through which the media flows. To open the valve, the plug is rotated sideways to align the hole to the flow. Plug valves can commonly be found in radiators, heaters and air systems. Gate valves: Gate Valves are linearly operated valves that contain barriers referred to as gates. The gates are raised and lowered to open and close the valve, respectively. Gate valves are designed to be completely open or completely closed and are not suitable for flow regulation. Globe valves: Globe Valves consist of a globe-shaped disc that blocks flow by closing against an orifice. The globe is raised and lowered by an outside stem and yoke, otherwise known as OS&Y. Unlike gate valves, globe valves can be used to regulate flow as they can be partially opened and partially closed. Gear is toothed, mechanical transmission elements used to transfer motion and power between Machine Parts, and in this article, we discuss the different types of gears available and how gears work. Operating in mated pairs, gears mesh their teeth with the teeth of another corresponding gear or toothed component which prevents slippage during the transmission process. Each gear or toothed component is attached to a machine shaft or base component, therefore when the driving gear (i.e., the gear that provides the initial rotational input) rotates along with its shaft component, the driven gear (i.e., the gear or toothed component which is impacted by the driving gear and exhibits the final output) rotates or translates its shaft component. Depending on the design and construction of the gear pair, the transference of motion between the driving shaft and the driven shaft can result in a change of the direction of rotation or movement. Additionally, if the Gears are not of equal sizes, the machine or system experiences a mechanical advantage which allows for a change in the output speed and torque (i.e., the force which causes an object to rotate). The North American forging industry continues to grow in technical prowess. OEMs are realizing that nothing beats forgings for strength and reliability. Advances in forging technology have expanded the range of shapes, sizes, and properties available in forged products to meet an increasing variety of design and performance requirements. Forging Components are regularly specified where strength, reliability, economy, and resistance to shock and fatigue are vital considerations. Forged materials offer the desired degree of high or low temperature performance, ductility, hardness, and machinability.
Дата Публикации: 16-11-21
What’s the Difference Between Bearings?
Описание: What’s the Difference Between Bearings? Bearings are used to help reduce friction. Metal-upon-metal contact produces large amounts of friction. The friction adds to wear and tear of the metal, producing grinding that slowly degrades the metal. High Temperature Bearing reduces friction by having the two surfaces roll over each other, reducing the amount of friction produced. They consist of a smooth metal ball or roller that rolls against a smooth inner and outer metal surface. The rollers or balls take the load, allowing the device to spin. The load acted upon a bearing is either a radial or thrust load. Depending on the location of the bearing in the mechanism, it can see all of a radial or thrust load or a combination of both. For example, the bearing in the wheel of your car supports a radial and a thrust load. The weight of the car on the bearing produces a radial load while the thrust load is produced as the car turns a corner. Here we will examine some types of common Agricultural Bearings. Ball Bearings are the most common type of bearing and can handle both radial and thrust loads. Ball bearings are also known as deep-groove single-row or Conrad bearings. The inner ring is typically fastened to the rotating shaft and the groove on the outer diameter provides a circular ball raceway. The outer ring is mounted onto the bearing housing. The ball bearings are housed in a race and when the load is applied, it is transmitted from the outer race to the ball and from the ball to the inner race. The raceway grooves have typical curvature radii of 51.5% to 53% of the ball diameter. Smaller curvature raceways can cause high rolling friction due to the tight conformity of the balls and raceways. Higher curvature raceways can shorten fatigue life from increased stress in the smaller ball-race contract area. Thin Wall Ball Bearing, also known as Conrad bearings, are typically used in small load applications. The contact points between the ball and the outer race is very small due to the spherical shape of the bearing. This also helps the ball spin very smoothly. Since the contact point is so small, the bearing can become overloaded at a specific point causing the ball bearing to become deformed. This will ruin the bearing. Ball bearings are typically used in applications where the load is relatively small. Straight Roller Bearings Straight roller or cylindrical bearings run in cylindrical raceways and have low-friction, high-radial load capacity, and high speed capability. Roller bearings are cylinder-shaped bearings where the point of contact between the bearing and the race is a line rather than a point. Load is distributed over a larger area and allows the bearing to handle a greater load. To minimize its tendency to skew, the roller’s length is not much greater than the diameter of the roller. Straight or Cylindrical Roller Bearings can be found in applications like conveyor-belt rollers, which are required to hold heavy radial loads. Their usual design is free to float axially, and they have roller-guiding flanges on both sides of one ring and none on the other side. This allows for the bearing to expand due to thermal activity when used in combination with a ball bearing’s fixed location at the opposite end. A thrust load can be supported in one direction if a guiding flange is added on one of the opposing rings’ side. A second flange can be added for two-directional thrust capacity. b>Needle Roller Bearings Needle Bearings use elongated cylindrical rolling elements with small diameters. They are used in applications where radial space is limited. The diameter to length ratio for the needles varies between 1-to-2.5 and 1-to-10. Due to their small size, they cannot be guided accurately and generate high amounts of friction. They are used at low speeds and oscillating motions as a result. Cages may be used to help guide the needles and improve retention. Thrust Bearings Designed to handle high thrust loads, Thrust Ball Bearings are typically found in gearsets used for car transmissions between gears or between the housing and rotating shafts. The angled teeth found in helical gears used in car transmissions produce a high thrust load that is supported by the roller-thrust bearings. Roller-thrust bearings slide within a roller-race contact to handle the surface-speed variation that comes as a result of the varying diameter across the contact zone. Tapered Roller Bearings typically consist of two rows of barrel-shaped rollers running in two raceways. One is on the inner ring and the other is on a continuous spherical surface ground on the inner diameter of the outer ring. This allows the bearing to operate with some misalignment. Spherical rollers have barrel profiles that closely match the raceways profiles, hence making them robust and having a high load capacity. They are mounted in pairs inside the bearing housing and are faced in opposite directions. This is done so that the load can be supported in either direction.
Дата Публикации: 16-11-21
Double Innovation In Paper Bag Machine
Описание: Double Innovation In Paper Bag Machine We are known for making paper bags, laminating and flexo printing machines. It has designed and developed a new Paper Bag Machine that has increased the production speed by 30% and automates the mold switching process. The machine is developed using standard technology and professional technology, has at least 8 rotating shafts, and can join up to 30 rotating shafts, depending on the customer's specifications. All the electronic systems and software of this machine are developed by us, and the products produced by this machine are far more than similar products on the market. The consumption of plastic bags continues to decline and is being replaced by paper bags. The structure of the paper bag machine is relatively complicated. Under the current conditions, it takes a long time to change the mold. To solve these problems, we have developed a new Luxury Bag Machine, which is trusted for its engineering and expertise. This newly developed machine can provide products of various sizes and characteristics, so it can switch between different product processes several times a day. It takes quite a long time to switch molds in the process of producing different products in the machines currently in use, and the company's engineers are looking for new ways to solve this problem. With this in mind, they conducted an intensive research and development study to understand how to reduce the delay between the manufacture of different products. Another important innovation is the increase in the production speed of the machine by approximately 30%. Similar machines on the market can produce 600-700 paper bags per minute, depending on the size of the product, and the new Food Bag Machine will increase this number to 900-1000. During the development of this technology, standard tests and professional tests were carried out. Although the same product is manufactured in Europe at 500 kg, this figure drops to 200 kg in Turkey because this is a demand trend that manufacturers must comply with. If we take the daily production capacity of a machine as 1 ton, assuming that 4 different products are produced in one day, it will take an average of 4 product changes. When the switching time of each product is about 30 minutes, this means that nearly 2 hours are used to change the machine settings every day. This is a long time. A Printing Machine is a complex piece of high-precision industrial equipment that is designed to produce printed material at a high rate of speed and low cost per page. Printing presses are commercially available which use several different types of printing technologies, but the most common type is called offset lithography. These presses are commonly designed in either sheet-fed configurations, which print on individual sheets of paper or other material, or web-fed configurations, which print on long webs of paper or other material, supplied on large reels. A so-called 'full size' sheet fed offset press prints on sheets that are about 700 mm x 1000 mm in size (about 28 inches x 40 inches). "Half size" and "quarter size" offset presses are also common, and these machines print on sheets that are one-half or one-quarter as large. Digital Cutting Machines have caught the attention of hobbyists of all sorts including scrapbookers, cookie makers, cake decorators, metal clay and polymer clay artists, and even leather workers. With so many cutting machines on the market how do you pick the right one? I have all the cutters mentioned here and have spent a month this experimenting with each of them. In order to determine which machine is best for you, first think through what kind of projects you’d like to make? Each machine its own parameters of what’s possible so its important to know what you’ll be using it for. To start, are you doing this as a hobby or hoping to start a small business? I’ve always believed in buying new equipment that could grow with my ideas. I went shopping for a sewing machine a few years ago and settled on a floor model that had a reduced price. It came with a lot more bells and whistles then I needed or knew how to use at the time, but after a few classes, the creative possibilities with the machine and attachments were really exciting. I feel the same way about digital cutters. This is our fully automatic paper Handle Making Machines Set with handle loops online. This machine is used for the production of heavy duty paper shopping bags. The heavier grade paper can be printed or coated in advance for very high quality and very strong paper bags. It uses roll fed paper as stock material, the weight of the paper can be adjusted to suit your requirements. These types of paper bag making machinery are used to make paper shopping bags for food, garments, shoes, SOS, etc. The high speed paper bag making machine can be used to manufacture paper bags with handles, with the loop handle inline or online from rope for department store bags, fashion bags, kraft shopping bags, grocery brown paper bags, bread bags and so on. This machine can be used to make the rope handles inline with the paper bag production and also includes an inline gluing station to make this one of the best fully automatic paper bag production machines for multiple paper bag production uses. The machine can also be setup to not include handles if preferred in the production, depending on the customers bag making requirements. The Rope Making Machine is produced with only the very best, high quality electrical parts to ensure the paper bag production line remains stable. For example, the machine uses German Lenze Servo Motor, Lenze Servo Driver, Lenze CPUs. The machine sensors are also all from Germany. This machine delivers excellent reliability and extremley high quality production for the very best printed paper carrier bags, kraft paper or coated stock paper carrier bags.
Дата Публикации: 16-11-21
Types of Food Packaging Machines
Описание: Types of Food Packaging Machines Depending on the type of food being packed, packing comes in various types. To pack these food materials, various Multi-Lane Packing Machines are used. The packing styles also change depending on the storage life of the product. Food that are high perishable like fresh processed meats and frozen items are best when vacuum packed since it can tremendously extend its storage life. There is a separate type of Stick Bag Packing Machine or food packing equipment used to perform vacuum packaging of the products. Here are the various types of food packaging machines: Food Vacuum Packaging Machine: It is one of the most efficient Horizontal Doypack Packing Machine to pack foods because it avoids air making food remain fresh. As aerobic microorganisms are responsible in swift deterioration of foods, they hardly thrive or are immobilized under this condition. Food vacuum packaging machine helps to extend storage life of food products thereby making the product well suited for sale on the freezer or cold display storage units of several retail stores. Biscuit packaging machine is another type of food packaging equipment. It is usually fitted with electronic digital temperature controller to maintain high precision in achieving the desired temperature during food packing process. It helps to bring the optimum freshness of the food. The most interesting aspect of this Stand Up Pouch Machine is that packaged products are closely monitored with its automatic feed counter that shows the quantity of items placed packed by the machine. This makes it easier for the food manufacturing companies to monitor daily factory output. Bundling Food Packaging Equipment Bundling Food packaging Equipment is quite common and is widely used by many food suppliers. It is capable of storing huge quantity of foods before they are banded or wrapped together as a single bundle. It is also called as the Spout Pouch Packing Machine. It can also be used for packing small items such as stick candies or individually packed hot-dogs that need to be bundled together for economic purposes. Bagging Machine It is popular in several China food processing factories. Foods in this case are packed in bags, sacks and pouches. This bagging machine is common to pack cereals and powdered foods such as milk powder and sugar. Closing Machines These closing Irregular Doypack Machines are similarly common in many food factories. This equipment is used to tie metal wires to enclose the food bag or pouch. Capping Machines Capping machines are popular among food suppliers of food syrups and drinks. This equipment is not used solely to pack food items but it is usually used in conjunction with other food packaging equipment. The major function of this equipment is to close bottled food items by placing air-tight caps. This is common in soda-manufacturing companies. Accumulation machinery Accumulation machinery is used along with the capping machine. This Premade Pouch Packing Machine allows proper alignment of bottles for systematic and organized filling of foods. It is used in soda companies and bottled-water companies. There are various types of food packaging machines. It is important to tailor-fit the selection when yo buy one of these machineries according to the type of food that is being packaged to ensure optimum quality products with fully extended storage life. When looking to price a Vertical Packing Machine, You may experience sticker shock. There are a few items you will need to consider when taking the price of these machines into consideration. Here are the items that will affect the cost of your chosen equipment. Functionality - A food packaging machine could cost you anywhere between $10,900 - $65,000. The functionality of each machine has a big effect on the cost of the equipment. The price of your machine is going to be based upon the equipment's capabilities, factoring in things like speed, the hourly volume of packages produced, and whether the Horizontal Flat Pouch Packing Machine is a manual or automatic model. Mechanical Components - Manual models will have less moving parts, internal computer-controlled motors and other more complicated components. As such, automatic models that can be programmed and run automatically via the control panel will cost more than the manual models available. Capabilities - Depending on the model you choose and the machine's capabilities, you will have to consider your cost of materials. Entry-level machines are going to package less volume and use less materials daily versus a high-end automatic Single Lane Stick Bag Packing Machine. While a high-end automatic model will cost a lot more upfront, running higher amounts of materials will help you cut costs as you will generally get discounts on materials orders for larger volumes of product purchased. In this respect, your total cost of ownership over time will be less for more expensive higher-end models.
Дата Публикации: 16-11-21