The Advantages of Canvas Tarps
Tarpaulins (tarps) made of canvas are some of the most versatile tarps on the market today. These tarps can be flame retardant, water resistant, and
mildew resistant. Canvas tarps come in several fabric gauges, from 10-ounce to 17-ounce and up. (The higher the number, the heavier and more durable the…[Leggi tutto]
How battery chargers work
If you've read our main article on batteries, you'll know all about these portable power plants. An example of what scientists refer to as
electrochemistry, they use the power of chemistry to release stored electricity very gradually.
What happens inside a typical battery—like the one in a f…[Leggi tutto]
Cars that watch you watch them steer
The automobile, in American life, has long been a hallmark of freedom. A teenager’s first driver’s license offers freedom from Mom and Dad. A new car
and the open road bring the freedom to chase the American dream. But as more technology creeps in to help drivers, so, too, will systems that eav…[Leggi tutto]
This valve controls the expulsion of oil from the spring side of the second gear band servo piston at speeds in the region of 60 km/h. The time period
for oil to exhaust then depends upon the governor pressure varying the effective exhaust port restriction. Line pressure oil from the spring side of the
second gear band…[Leggi tutto]
How Cement Mixers Work
In addition to the mixing energy applied to the fresh concrete (i.e. shearing during mixing), the shear history after mixing is also important. This
applies especially to binder rich concretes like the different types of high performance concrete (HPC). With this in mind, the shear rate is analyzed inside
a drum of…[Leggi tutto]
Bus HVAC energy consumption test method based on HVAC unit
In this study, passenger comfort and the air pollution status of the micro-environmental conditions in an air-conditioned bus were investigated through
questionnaires, field measurements, and a numerical simulation. As a subjective analysis, passengers' perceptions of indoor…[Leggi tutto]
Introduction to Injection Mold Verification
Injection molding is one of the most commonly used production processes for plastics. This is rightly so as it offers a viable solution for the mass
production of high-quality injection automotive parts from a broad range of polymers. In the automotive industry, where consistency, safety, and…[Leggi tutto]
Beauty & Style
Earrings, ornaments decorating the ears, have been one of the principal forms of jewelry throughout recorded history. The term usually refers to
ornaments worn attached to the earlobes, though in the late twentieth century it expanded somewhat to include ornaments worn on other parts of the ear, such
as ear cuffs, and is…[Leggi tutto]
Can Liquid Nails Bond Wood To Metal?
It’s a common household problem. However, you have another problem. You have a wooden bathroom door and a metal knob. What’s the quickest way to
reattach the two surfaces? Can you trust your tube of liquid nails to do the job?
Basic electrical quantities: current, voltage, power
Voltage and current are the cornerstone concepts in electricity. We will create our first mental models for these basic electrical quantities. We will
also talk about power, which is what happens when voltage and current act together.
The concept of electricity arises from an…[Leggi tutto]
Preparation of activated carbon from biomass and its’ applications in water and gas purification
Due to its versatility and wide range of applications, activated carbon is widely used as contaminant removal media. Recent research have focused on
enhancing the effectiveness of activated carbon by modifying their specific properties in o…[Leggi tutto]
Auto-disable syringes are not for needle programmes
WHO and its partners recommend the use of auto-disable syringes, "bundled" with
the supply of vaccines when donor dollars are used, in all mass immunization campaigns, and also strongly advocate their use in routine immunization
programmes. Because of the relatively high price of…[Leggi tutto]
Multi-Cookers For Every Kind of Household
Whether you have a large family or live alone, there is always a magic multicooker to suit every kind of home. It could be a one-person pot, or a big sharing one – these popular Electric Multi Cookers do the cooking for you so you spend less time on great meals.
Not all of us are fortunate…[Leggi tutto]
Socket or portable battery
A USB fan is a small and portable device that's handy for personal, close-proximity cooling. As the name suggests, it's powered through a USB connection, such as the one in your computer, a power adapter that you plug into a wall outlet or a portable battery. Some can be self-powered using an internal battery that…[Leggi tutto]
Some ways to improve your sheet metal parts
Sheet metal fabrication is a handy set of manufacturing processes used to create parts from flat pieces of metal. Sheet metal comes in a range of materials and thicknesses, and can be used to create parts like appliances, enclosures, brackets, panels and chassis.
For those new to sheet metal…[Leggi tutto]
Coronavirus Face Masks & Protection FAQs
The CDC continues to monitor the spread of COVID-19 and makes recommendations for wearing face face masks, both for those who are fully vaccinated as well as those who are not fully vaccinated.
The CDC also recommends that masks and physical distancing are required when going to the doctor’s o…[Leggi tutto]
The relation between shaker screen mesh and the hole diameter
A shale shaker screen is a vulnerable spare part of a shale shaker. But the shaker screen is very important in the drilling mud recycling system. The shaker screens design and quality determined the separation performance of the shale shaker. Generally speaking, the working…[Leggi tutto]
Medical Protective Clothing: The Complete Guide
Medical protective clothing, also known as medical protective suit, disposable protective coverall, or antivirus suit. Medical protective clothing refers to the protective clothing used by medical personnel (doctors, nurses, public health personnel, cleaners, etc.) and people entering a specific…[Leggi tutto]
What are Precision Stamping Machines?
Precision metal stamping is a process for punching markings, three-dimensional shapes, or other designs into material surfaces, and precision stamping machines exert a high level of force to engrave dies and forms onto the surface material. Metals such as steel, copper, and aluminum are the most commonly…[Leggi tutto]
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