|
Japanese Industrial Standard
are the standards used for industrial activities in Japan, coordinated by the Japanese Industrial Standards Committee (JISC) and published by the Japanese Standards Association (JSA). The JISC is composed of many nationwide committees and plays a vital role in standardizing activities across Japan. History In the Meiji era, private enterprises were responsible for making standards, although the Japanese government too had standards and specification documents for procurement purposes for certain articles, such as munitions. These were summarized to form an official standard, the Japanese Engineering Standard, in 1921. During World War II, simplified standards were established to increase matériel output. The present Japanese Standards Association was established in 1946, a year after Japan's defeat in World War II. The Japanese Industrial Standards Committee regulations were promulgated in 1946, and new standards were formed. The Industrial Standardization Law was enacted i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JIS Mark
JIS may refer to: Standards * Japanese Industrial Standards ** List_of_screw_drives#JIS_B_1012, JIS screw drive ** JIS semiconductor designation ** JIS encoding ** Shift JIS Organisations * Japanese international school * Jabriya Indian School, Kuwait * Jakarta International School, Indonesia * Jamaica Information Service * Jeddah International School, Saudi Arabia * Jerudong International School, Brunei * JIS University, India * JIS College of Engineering, India Other uses * Jakarta International Stadium, stadium in Jakarta * Juggling Information Service, a website * Just in sequence, an inventory strategy * Journal of Integer Sequences * Japanese Instrument of Surrender signed September 2, 1945 {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Screw Drives
At a minimum, a screw drive is a set of shaped cavities and protrusions on the screw head that allows torque to be applied to it. Usually, it also involves a mating tool, such as a screwdriver, that is used to turn it. Some of the less-common drives are classified as being "tamper-resistant". Most heads come in a range of sizes, typically distinguished by a number, such as "Phillips #00". Overview Slotted drives Slot Slot screw drives have a single horizontal indentation (the ''slot'') in the fastener head and is driven by a "common blade" or flat-bladed screwdriver. This form was the first type of screw drive to be developed, and, for centuries, it was the simplest and cheapest to make because it can just be sawed or filed. Blunt or damaged tools can easily be re-ground as required in any workshop. It is unique because the slot head is straightforward to manufacture, and because it can be driven by a simple handtool. The ''slotted screw'' is commonly found in existing p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railway Engineering
Railway engineering is a multi-faceted engineering discipline dealing with the design, construction and operation of all types of rail transport systems. It includes a wide range of engineering disciplines, including(but not limited to) civil engineering, computer engineering, electrical engineering, mechanical engineering, industrial engineering and production engineering. History With the advent of the railways in the early nineteenth century, a need arose for specialized engineers capable of dealing with the unique problems associated with railway engineering. As the railways expanded and became a major part in logistics, more engineers became involved in the field, probably the most notable in Britain being Richard Trevithick, George Stephenson and Isambard Kingdom Brunel. Subfields *Mechanical engineering * Electrical engineering ** Command, control & railway signalling *** SCADA *** Network design * Civil engineering ** Permanent way engineering * Railway systems eng ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISO 6485
The International Organization for Standardization (ISO ; ; ) is an independent, non-governmental, international standard development organization composed of representatives from the national standards organizations of member countries. Membership requirements are given in Article 3 of the ISO Statutes. ISO was founded on 23 February 1947, and () it has published over 25,000 international standards covering almost all aspects of technology and manufacturing. It has over 800 technical committees (TCs) and subcommittees (SCs) to take care of standards development. The organization develops and publishes international standards in technical and nontechnical fields, including everything from manufactured products and technology to food safety, transport, IT, agriculture, and healthcare. More specialized topics like electrical and electronic engineering are instead handled by the International Electrotechnical Commission.Editors of Encyclopedia Britannica. 3 June 2021.Internatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automotive Engineering
Automotive engineering, along with aerospace engineering and naval architecture, is a branch of vehicle engineering, incorporating elements of Mechanical engineering, mechanical, Electrical engineering, electrical, Electronic engineering, electronic, Software engineering, software, and safety engineering as applied to the design, manufacture and operation of motorcycles, automobiles, and trucks and their respective engineering subsystems. It also includes modification of vehicles. Manufacturing domain deals with the creation and assembling the whole parts of automobiles is also included in it. The automotive engineering field is research intensive and involves direct application of mathematical models and formulas. The study of automotive engineering is to design, develop, fabricate, and test vehicles or vehicle components from the concept stage to production stage. Production, development, and manufacturing are the three major functions in this field. Disciplines Automobile engi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JIS Semiconductor Designation
Japanese Industrial Standards (JIS) has standard JIS-C-7012 for semiconductor part numbers. The first digit denotes the ''p-n junction count'' ("3" may also denote a dual-gate FET); then follows the letter "S", then: Then follows the ''Japan Electronics and Information Technology Industries Association's Electronic DEvice REgistration Center'' (JEITA-EDEREC)-assigned part number, optionally followed by suffixes (such as "A", "B", "C", or "R", "O", "BL", standing for "Red", "Orange", "Blue" etc.) to denote variants, such as tighter hFE (gain) groupings. Example: 2SD965, but sometimes the "2S" prefix is not marked on the package – a 2SD965 might only be marked "D965"; a 2SC1815 might be listed by a supplier as simply "C1815", thus possibly creating confusion with Pro Electron abbreviated markings, because a transistor marked "D965" might either be a 2SD965 or a BD965. References See also *JEDEC * Pro Electron *Mullard–Philips tube designation *RMA tube designation *RETMA tub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JIS Tube Designation
This is a list of vacuum tubes or ''thermionic valves'', and low-pressure gas-filled tubes, or ''discharge tubes''. Before the advent of semiconductor devices, thousands of tube types were used in consumer electronics. Many industrial, military or otherwise professional tubes were also produced. Only a few types are still used today, mainly in high-power, high-frequency applications and also in boutique guitar amplifiers. Heater or filament ratings Receiving tubes have heaters or filaments intended for direct battery operation, parallel operation off a dedicated winding on a supply transformer, or series string operation on transformer-less sets. High-power RF power tubes are directly heated. The heater voltage must be much smaller than the signal voltage on the grid and is therefore in the 5-25 V range, drawing up to hundreds of amperes from a suitable heater transformer. In some valve part number series, the voltage class of the heater is given in the part number, and a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JIS C 5063 signed September 2, 1945
{{disambiguation ...
JIS may refer to: Standards * Japanese Industrial Standards ** JIS screw drive ** JIS semiconductor designation ** JIS encoding ** Shift JIS Organisations * Japanese international school * Jabriya Indian School, Kuwait * Jakarta International School, Indonesia * Jamaica Information Service * Jeddah International School, Saudi Arabia * Jerudong International School, Brunei * JIS University, India * JIS College of Engineering, India Other uses * Jakarta International Stadium, stadium in Jakarta * Juggling Information Service, a website * Just in sequence, an inventory strategy * Journal of Integer Sequences * Japanese Instrument of Surrender The Japanese Instrument of Surrender was the written agreement that formalized the surrender of the Empire of Japan, marking the end of hostilities in World War II. It was signed by representatives from the Empire of Japan and from the Allied n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JIS C 5062
The RKM code, also referred to as "letter and numeral code for resistance and capacitance values and tolerances", "letter and digit code for resistance and capacitance values and tolerances", or informally as "R notation" is a notation to specify resistor and capacitor values defined in the international standard IEC 60062 (formerly IEC 62) since 1952. Other standards including DIN 40825 (1973), BS 1852 (1975), IS 8186 (1976), and EN 60062 (1993) have also accepted it. The updated IEC 60062:2016, amended in 2019, comprises the most recent release of the standard. Overview Originally meant also as part marking code, this shorthand notation is widely used in electrical engineering to denote the values of resistors and capacitors in circuit diagrams and in the production of electronic circuits (for example in bills of material and in silk screens). This method avoids overlooking the decimal separator, which may not be rendered reliably on compo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IP Code
The IP code or International Protection code indicates how well a device is protected against water and dust. It is defined by the International Electrotechnical Commission (IEC) under the international standard IEC 60529 which classifies and provides a guideline to the degree of protection provided by mechanical casings and electrical enclosures against intrusion, dust, accidental contact, and waterproofing, water. It is published in the European Union by the European Committee for Electrotechnical Standardization (CENELEC) as EN 60529. The standard aims to provide users more detailed information than vague marketing terms such as ''waterproof''. For example, a cellular phone rated at IP67 is "dust resistant" and can be "immersed in 1 meter of freshwater for up to 30 minutes". Similarly, an electrical socket rated IP22 is protected against insertion of fingers and will not become unsafe during a specified test in which it is exposed to vertically or nearly verti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrical Engineering
Electrical engineering is an engineering discipline concerned with the study, design, and application of equipment, devices, and systems that use electricity, electronics, and electromagnetism. It emerged as an identifiable occupation in the latter half of the 19th century after the commercialization of the electric telegraph, the telephone, and electrical power generation, distribution, and use. Electrical engineering is divided into a wide range of different fields, including computer engineering, systems engineering, power engineering, telecommunications, radio-frequency engineering, signal processing, instrumentation, photovoltaic cells, electronics, and optics and photonics. Many of these disciplines overlap with other engineering branches, spanning a huge number of specializations including hardware engineering, power electronics, Electromagnetism, electromagnetics and waves, microwave engineering, nanotechnology, electrochemistry, renewable energies, mechatronics/control ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
