A connector is a device that transmits electric signals either from the power source to the electronic equipment or connects the internal controls of a machine. It forms a medium of communication between different systems and components by connecting electric circuits with each other. Connectors are widely used in most of the following industries:

QSFP is an optical transceiver module used in optical fiber communication systems. The main function of this module is photoelectric conversion. In an optical fiber communication system, the information is sent in the form of light pulses, which is then converted into electrical signals in order to be utilized by an electronic device. The transmitter then converts the electrical signal into an optical signal, which is coupled to a connector. The receiver then converts the optical signal, which is transmitted through a fiber optic cable, into an electrical signal. There are different types of fiber optic transceivers available in the market including CFP, QSFP, QSFP+, SFP, and SFP+. The different types of fiber optic transceivers are described below:

Pressure regulators modulate or reduce the fluctuating supply (or inlet) pressure to obtain the desired outlet pressure. This process is the primary functionality of pressure regulators. A pressure regulator consists of three primary functional elements:  A pressure-reducing or restrictive element, which is often a spring-loaded poppet valve.  A sensing element that is typically a diaphragm or piston.  A reference force element, which is most commonly a spring. Many factors should be considered while choosing a pressure regulator. The primary factors include operating pressure ranges for the inlet and outlet, flow requirements, the type of fluid, and expected operating temperature range. Other factors include appropriate material selection for regulator components, including seals, as well as the size and weight constraints.

As of 2016, pico projectors are sub-1 pound with internal batteries and have an output of no more than 100 lumens with many producing 10 to 50 lumens. Many of the pico projectors are available on Amazon, the US website; however, pico projects from major brands including Vivitek, Optoma, and Sony are not available online. Most of the pico projectors run up to 2 hours on their internal batteries and have 6 or 12-volt chargers and adapters. Though external battery packs option is available, it is not offered by the manufacturers.

Night vision devices collect ambient light, which includes moonlight, starlight or infrared (IR) light through the front lens of the device. This light is made of photons. It is converted to electrons by passing it through a photocathode tube. The electrons are then amplified through a chemical and electrical process. After that, the resulting light is thrown against a phosphorous screen that converts the electrons back to the visible light, which the user sees through the eyepiece. The image is a clear, green-hued, amplified recreation of the scene. It is green because of the phosphorous screen, which converts light to green. This is because human eyes are more sensitive to green light than to any other color.

变频器市场国产品牌与国外品牌，无论在技术、加工制造、工业设计等方面还是在资金实力方面，都与国外品牌存在差距，目前仍然无法撼动国际品牌的主导地位。变频器领域，低压变频器市场小幅下滑且市场集中度有所下降，除了两大巨头 ABB、西门子占据 21%的市场份额，3-10名的市场占比率相差不大，外资品牌在国内变频器市场的占有率仍维持在 60%-70%。而国产品牌 2016 年内虽有上升趋势，但是市场占比率提升方面仍不明显，如汇川市占率为 6%，位列第三位；英威腾为 4%，跻身前十大低压变频器厂商。

Meat and poultry processing equipment is used by manufacturers of meat and poultry products for processing meat using techniques such as blending, homogenization, pasteurization, and filling. Processing of food helps in removal of toxins and preservation. Processed food offers advantages such as enhanced taste, low risk of contamination, enhanced shelf life, and a high degree of portability.

The global massage equipment market was valued at $18.32 billion in 2016, and it is likely to grow at a CAGR of 5.88% to reach $24.38 billion by 2021. The market was dominated by the Americas in 2016, which accounted for a revenue share of 45.42%. The demand for handheld massagers has increased in the past three years because of the rise in awareness among the global population about professional and premium massagers. Professional massagers are known for providing quality results to individuals and are comparatively expensive. Massagers are primarily prevalent in the market based on their massage mechanisms such as natural, organic, acupressure, shiatsu, ultrasonic, hypoallergic, homeopathic, and aromatherapy. Inexpensive electric massagers attract much of the end-users in developing countries. Countries like the US and the UK are the major revenue contributors to the global massage equipment market.

Managed industrial Ethernet switches are increasing their presence in the industrial communication market due to their network prioritization capabilities and due to the increase in the highly critical process applications. The functionality of an Ethernet switch is defined by IEEE 802.1D, which describes the architecture and the set of functions distributed throughout this architecture. In addition to the handling of user data communication, these switches also provide a set of network managementrelated functionality.

Various industries, ranging from coal desulfurization to metal production have been using magnetic separation as an essential part of their processes for decades. Magnetic separation filters are used to remove magnetic impurities in continuous flow processes. Magnetic separation techniques like high-gradient magnetic separation (HGMS) have broadened the application base of MSE to industries such as food processing and industrial wastewater treatment. In addition, the applications have expanded to include niche industries like biotechnology where batch-scale magnetic separators are used for the purification of complex mixtures in cell separation, protein isolation, drug delivery, and biocatalysis.