E-commerceis short for electronic commerce, which refers to trading activities andrelated service activities conducted electronically on the Internet, intranetsand value-added networks, as well as the electronic and networked aspects oftraditional business activities. Food e-commerce, on the other hand, is amarket where retailers or brand owners sell food products directly to customersvia the Inte
Inthe eyes of most people, ceramic and porcelain are of the same concept, infact, they are two different things. Thus, the tiles we usually use forbuilding or decoration are divided into ceramic tiles and porcelain tiles aswell. Ceramic tiles are made up of coarse clay and other non-metallicmaterials, by forming, sintering and other technology production of plate orblock pottery products; And porc
Network security protection is a kind of network security technology, which refers to technical means dedicated to solving problems such as how to effectively carry out intervention control and how to ensure the security of data transmission, so as to protect the hardware, software and system data in the network system, so that it can cause problems. In the event of damage, modification, or leakag
Fireprotection refers to the research and practice of mitigating the adverseeffects of potentially devastating fires. It mainly includes the personnelrescue of the fire scene, the rescue of important facilities and equipment,cultural relics, the security and rescue of important property and fireextinguishing, etc., the purpose is to reduce the damage caused by the fire,reduce casualties and proper
Sugar-free beverages refer to sugars that do not contain sucrose, that is, starch hydrolyzed, such as glucose, maltose, etc., and generally use sugar alcohols and oligosaccharides and other sweeteners that do not increase blood sugar concentration as substitutes. The sweetness of sweeteners is dozens or even hundreds of times that of sucrose, but the energy content is very low. Therefore, only a s
Alocker is a small, usually narrow storage compartment. They are commonly foundin dedicated cabinets, very often in large numbers, in various public places suchas locker rooms, workplaces, middle and high schools, transport hub and thelike. They vary in size, purpose, construction, and security.
Metalinjection molding (MIM) is a metalworking process in which finely-powderedmetal is mixed with binder material to create a "feedstock" that isthen shaped and solidified using injection molding. The molding process allowshigh volume, complex parts to be shaped in a single step. After molding, thepart undergoes conditioning operations to remove the binder and densify thepowders. Finished product
Expandedglass bead is a kind of inorganic vitreous mineral material, which is processedby multi-stage silicon carbide electric heating tube type productiontechnology. It is irregular spherical particles, internal porous cavitystructure, glass closed surface, smooth luster, Stable physical and chemicalproperties, light weight, thermal insulation, fire resistance, high and lowtemperature resistance,
Critical illness insurance refers to the occurrence of specific major diseases, such as malignant tumors, myocardial infarction, cerebral hemorrhage, etc., which are handled by insurance companies. The insurance contract stipulates the commercial insurance act of paying insurance money. Critical illness insurance came out in South Africa in 1983. It was the surgeon Mari Usbarnard who first propose
Semiconductordry strip systems helps in removing photoresist or other residues from a waferduring each step of film deposition or diffusion processing during semiconductormanufacturing process, bringing higher productivity and flexibility.
Industrial energy efficiency refers to the benefits generated by consuming energy in the industrial production process. It is an input-output ratio, which refers to the ratio between the energy cost of the input and the income obtained by the enterprise. The lower the energy cost, it should generally be lower than The industry average, the higher its energy efficiency. Industrial energy efficiency
Withthe development of the global economy, the residents\' lifestyle and consumptionpattern change, and the development and demand of tourism and catering industrypromote the formation and development of outdoor furniture market. The types ofoutdoor furniture are more and more diversified, and their applications aremore and more extensive, especially the application of outdoor tables.
Specialtyuncoated paper labels are multifunctional labels produced by laser and inkjettechnologies with excellent print quality, high whiteness, good bulkiness andsmoothness, suitable for offset printing, laser and inkjet printing. The costis low, so most wine label manufacturers use the type of paper label. It isalso used in many other industries, such as food and beverage, pharmaceuticals,person
Exhaustgas recirculation (EGR) is a system that allows exhaust gas to recirculate backinto the intake manifold. In internal combustion engines, exhaust gasrecirculation is a nitrogen oxide reduction technology used ingasoline/gasoline and diesel engines. The exhaust gas recirculation systemworks by recirculating a portion of the engine\\'s exhaust gas back to the enginecylinder. The exhaust gas re
Hydrogen sulfide eliminator is a deodorant for aqueoussystems containing hydrogen sulfide. The main component is a low molecularpolymer, which solves the smell problem at its root by reacting chemically withhydrogen sulfide and thiol. It can also effectively kill anaerobic bacteria, toachieve the effect of sterilization and deodorization, to prevent bacteriachange system smell, and effectively mai
The process of treating deactivated or partially deactivated catalyststo partially restore their catalytic activity and selectivity is calledcatalyst regeneration. The regeneration process does not involve thedisintegration of the overall structure of the catalyst, but the removal of thefactors leading to catalytic degradation by appropriate means, such as theremoval of toxins on the catalyst, dus
Sandwichpanels for construction are composite materials used for thermal insulation.The internal filling material (PIR, PUR, rock wool) is located between twopainted galvanized or aluminum trapezoidal panels. Sandwich panels forconstruction are used as coatings for building roofs, facades and internalpartitions or cold air rooms; it provides high thermal insulation, waterproofand sound insulation
Collagenis the main structural protein in the extracellular matrix of variousconnective tissues in the body. It is a major component of connective tissueand is the most abundant protein in mammals, accounting for 25-35% of the totalbody protein content. Collagen is held together by amino acids to form a triplehelix of elongated fibers called a collagen helix. It is found mainly in connectivetissue
Quartzwatches are made by using the principle that Quartz crystals are driven byelectric power to generate regular vibration, which is lighter and moreaccurate than traditional mechanical watches.
Surface PlasmonResonance (SPR) is the resonance oscillation of conduction electrons at theinterface between negative dielectric constant materials and positivedielectric constant materials excited by incident light. When polarized lightirradiates the conductive surface at the interface of the two media, SPR willoccur. It produces a kind of electron charge density wave called plasma toreduce the in
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