Дмитрий Коваль

Slewing Bearings, or turntable bearings, are ball or roller style bearings composed of two concentric rings either of which may include a gear. This type of bearing enhances load support and power transmission in all directions, and is typically employed to support heavy loads for slow applications and large equipment such as earth excavators and…[Читать далее]

Nowadays, PPR is the most commonly used material for pipes and fittings. PPR is a random copolymer polypropylene. In winter, the flexibility of PPR water pipes will decrease, while the rigidity will increase and flatten. If the pipe is impacted by an external force, the surface of the pipe will crack more seriously.

Therefore, PPR Pipe…[Читать далее]

A Backup Battery Unit, or uninterruptible power supply (UPS), is primarily used to provide a backup power source to important desktop computer hardware components. In most cases, those pieces of hardware include the main computer housing and the monitor, but other devices can be plugged into a UPS for backup power, depending on the size of the…[Читать далее]

In ancient times, The man started using ox and cows for farming. Later machinery and more advanced types of machinery took their place, and the tractor is one of them. The tractors are integral Farm Implements that mechanizes farming tasks like planting, tillage, plowing, etc.

What is Tractor

A tractor is a vehicle specially manufactured to…[Читать далее]

Punching machines are developed for high flexibility and efficient metal processing. Normally, the punching equipment consists of two pieces of tool: one for the punches and another for the dies.

What is the punching machine?

These machines are usually equipped with a linear matrix carrier (tool holders) and quick change tools. The numerical…[Читать далее]

Passive optical networks are characterized by the «splitting» of the optical fiber one or more times in the field, resulting in the sharing of the optical fiber amongst multiple users. The fiber in a PON is typically shared with 16 to 32 users. Hence the bandwidth of the fiber originating at the CO/HE is shared among a group of users. The…[Читать далее]

An integrated circuit (IC), sometimes called a Chip, microchip or microelectronic circuit, is a semiconductor wafer on which thousands or millions of tiny resistors, capacitors, diodes and transistors are fabricated. An IC can function as an amplifier, oscillator, timer, counter, logic gate, computer memory, microcontroller or…[Читать далее]

With the development of the modern technology and medicine, many advanced equipments came into being. ERCP Instruments are one of them.

Endoscopic retrograde cholangiopancreatography (ERCP) is a combined endoscopic and fluoroscopic procedure in which an upper endoscope is led into a second part of the duodenum, making it possible for passage of…[Читать далее]

Pipes are defined as circular tubular products used for conveying fluids (liquids, gases, and fluidized solids). Pipes are designed for a particular design pressure corresponding to design temperature. Various parameters related to pipes are Pipe Size, Pipe Schedule or thickness, Pipe Material, Pressure withstanding capability, Temperature…[Читать далее]

Indoor plumbing has been around for a long time, and the materials used for the pipes have gone through many changes. For decades, metal and ceramic were the most common pipe materials. Many homes today still have galvanized steel, clay, or even cast iron piping. Starting in the 1970s, copper replaced galvanized steel and is today the most common…[Читать далее]

Ceramic Tile Lined Pipe has very uniform coating of specially formulated ceramic material that is affixed to the inner of the pipe and gives a very smooth surface. Outer of straight pipe is common steel pipe, cladding realized by forming high chromium lining via centrifugal forming technique. The advantages of Ceramic Tile Lined Tube with its own…[Читать далее]

It is so easy to live by an «out of sight, out of mind» mindset when it comes to your vehicle. The truth is, it can definitely be overwhelming to think about all the little machines and components that make your vehicle function properly. But believe it or not, there are many elements in your vehicle that are made up of material that wears out…[Читать далее]

标The prime purpose for fire doors is to save lives and stop the progress of fire in support of both escaping occupants and fire-fighting activities. They are an important part of a building’s passive fire protection system and an essential requirement for the vast majority of premises including residential, public buildings, offices and f…[Читать далее]

Whether it’s simple studs or dramatic dangles, earrings are the quintessential no-fuss piece of jewelry 每 helping you look put together but not overdone. From more modern earring styles like ear cuffs and threaders to classic earrings like diamond studs and gold hoops, we’ve got you covered with the basics on all the different types of earrings a…[Читать далее]

One room can serve multiple purposes. It can be a place where you can relax, work on the computer, do arts and crafts, cook, share a meal with friends, and much more… This is why lighting features need to correspond to the setting or application of the room.

«The best advice I can offer is the following: no matter what you do, or what you h…[Читать далее]

Shoes are arguably the most important accessory in your closet. You need them every day, they enhance or distract from every outfit, and your entire mood can be affected by how they feel.

Shoes are arguably the most important accessory in your closet. You need them every day, they enhance or distract from every outfit, and your entire mood can…[Читать далее]

Nobody likes oven-like, stuffy and smelly kitchen, especially when you spend most of your time in the kitchen. Ventilation in the kitchen is often overlooked by the majority of kitchen users, but the truth is that the ventilation is just as important as the cleanliness.

It is important to keep in mind that a good Commercial Kitchen Ventilation…[Читать далее]

Personal protective equipment (PPE), or called Protective Body refers to all equipment (e.g. devices, appliances and associated accessories) that is worn by an individual, in order to provide protection against one or more health or safety risks, whilst at work.

There are two types of PPE these include simple and complex.

Simple personal…[Читать далее]