1.
Tokyo Stock Exchange
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The Tokyo Stock Exchange, which is called Tōshō or TSE/TYO for short, is a stock exchange located in Tokyo, Japan. It is the fourth largest stock exchange in the world by market capitalization of its listed companies. It had 2,292 listed companies with a market capitalization of US$4.09 trillion as of April 2015. In July 2012 a planned merger with the Osaka Securities Exchange was approved by the Japan Fair Trade Commission, the resulting entity, the Japan Exchange Group, was launched on January 1,2013. The TSE is incorporated as a kabushiki gaisha with nine directors, four auditors and its headquarters are located at 2-1 Nihonbashi-Kabutochō, Chūō, Tokyo, or Kabuto-chō, which is the largest financial district in Japan. Its operating hours are from 8,00 to 11,30 a. m. from April 24,2006, the afternoon trading session started at its usual time of 12,30 p. m. Stocks listed on the TSE are separated into the First Section for large companies, the Second Section for mid-sized companies, as of October 31,2010, there are 1,675 First Section companies,437 Second Section companies and 182 Mothers companies. Ninety-four domestic and 10 foreign securities companies participate in TSE trading, see, Members of the Tokyo Stock Exchange Other TSE-related institutions include, The exchanges press club, called the Kabuto Club, which meets on the third floor of the TSE building. Most Kabuto Club members are affiliated with the Nihon Keizai Shimbun, Kyodo News, Jiji Press, or business television broadcasters such as Bloomberg LP, the Kabuto Club is generally busiest during April and May, when public companies release their annual accounts. On 15 June 2007, the TSE paid $303 million to acquire a 4. 99% stake in Singapore Exchange Ltd. The Tokyo Stock Exchange was established on May 15,1878, as the Tokyo Kabushiki Torihikijo under the direction of then-Finance Minister Okuma Shigenobu, trading began on June 1,1878. In 1943, the exchange was combined with ten other stock exchanges in major Japanese cities to form a single Japanese Stock Exchange, the combined exchange was shut down and reorganized shortly after the bombing of Nagasaki. The Tokyo Stock Exchange reopened under its current Japanese name on May 16,1949, a new facility, called TSE Arrows, opened on May 9,2000. In 2010, the TSE launched its Arrowhead trading facility, in 2001, the TSE restructured itself as a stock company, before this time, it was structured as an incorporated association with its members as shareholders. The interruption in trading was the worst in the history of the exchange, trading was suspended for four-and-a-half hours. Mizuho failed to catch the error, the Tokyo Stock Exchange initially blocked attempts to cancel the order, on 11 December, the TSE acknowledged that its system was at fault in the Mizuho trade. On 21 December, Takuo Tsurushima, chief executive of the TSE, and two other senior executives resigned over the Mizuho affair. On January 17,2006, the Nikkei 225 fell 2. 8%, its fastest drop in nine months, the Tokyo Stock Exchange closed early on January 18 due to the trade volume threatening to exceed the exchanges computer systems capacity of 4.5 million trades per day
2.
Electronic component
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An electronic component is any basic discrete device or physical entity in an electronic system used to affect electrons or their associated fields. Electronic components have a number of electrical terminals or leads and these leads connect to create an electronic circuit with a particular function. The following list of electronic components focuses on the version of these components. Components can be classified as passive, active, or electromechanic, the strict physics definition treats passive components as ones that cannot supply energy themselves, whereas a battery would be seen as an active component since it truly acts as a source of energy. However, electronic engineers who perform circuit analysis use a more restrictive definition of passivity, then, the analysis only concerns the AC circuit, an abstraction that ignores DC voltages and currents present in the real-life circuit. This fiction, for instance, lets us view an oscillator as producing energy even though in reality the oscillator consumes even more energy from a DC power supply, active components include amplifying components such as transistors, triode vacuum tubes, and tunnel diodes. Passive components cant introduce net energy into the circuit and they also cant rely on a source of power, except for what is available from the circuit they are connected to. As a consequence they cant amplify, although they may increase a voltage or current, passive components include two-terminal components such as resistors, capacitors, inductors, and transformers. In contrast, active components generally lack that property, conduct electricity easily in one direction, among more specific behaviors. A transistor is a device used to amplify and switch electronic signals. Resistors, capacitors, inductors, and transformers are all considered passive devices, pass current in proportion to voltage and oppose current. They are used for filtering power supply lines, tuning resonant circuits, transducers generate physical effects when driven by an electrical signal, or vice versa. Sensors are transducers that react to environmental conditions by changing their electrical properties or generating an electrical signal, the transducers listed here are single electronic components, and are passive. Only the most common ones are listed here, reference designators are applied to the symbols to identify the component
3.
Kyoto
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Kyoto is a city located in the central part of the island of Honshu, Japan. It has a close to 1.5 million. Kyoto is also known as the thousand-year capital, in Japanese, the city has been called Kyō, Miyako, or Kyō no Miyako. In the 11th century, the city was renamed Kyoto, after the Chinese word for capital city, after the city of Edo was renamed Tokyo in 1868, and the seat of the Emperor was transferred there, Kyoto was known for a short time as Saikyō. Obsolete spellings for the name include Kioto, Miaco and Meaco. Another term commonly used to refer to the city in the period was Keishi. His last choice for the site was the village of Uda, the new city, Heian-kyō, a scaled replica of the then Tang capital Changan, became the seat of Japans imperial court in 794, beginning the Heian period of Japanese history. The city suffered destruction in the Ōnin War of 1467–1477. Battles between samurai factions spilled into the streets, and came to involve the court nobility and religious factions as well, nobles mansions were transformed into fortresses, deep trenches dug throughout the city for defense and as firebreaks, and numerous buildings burned. The city has not seen such widespread destruction since, Hideyoshi also built earthwork walls called odoi encircling the city. Teramachi Street in central Kyoto is a Buddhist temple quarter where Hideyoshi gathered temples in the city, throughout the Edo period, the economy of the city flourished as one of three major cities in Japan, the others being Osaka and Edo. The Hamaguri rebellion of 1864 burnt down 28,000 houses in the city, the modern city of Kyoto was formed on April 1,1889. The construction of Lake Biwa Canal in 1890 is one taken to revive the city. The population of the city exceeded one million in 1932, stimson, Secretary of War in the Roosevelt and Truman administrations, the city was removed from the list of targets and replaced by Nagasaki. The city was spared from conventional bombing as well, although small-scale air raids did result in casualties. As a result, the Imperial City of Kyoto is one of the few Japanese cities that still have an abundance of prewar buildings, however, modernization is continually breaking down the traditional Kyoto in favor of newer architecture, such as the Kyōto Station complex. Kyoto became a city designated by government ordinance on September 1,1956, in 1997, Kyoto hosted the conference that resulted in the protocol on greenhouse gas emissions that bears the citys name. Kyoto is located in a valley, part of the Yamashiro Basin, in the part of the mountainous region known as the Tamba highlands
4.
Japan
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Japan is a sovereign island nation in Eastern Asia. Located in the Pacific Ocean, it lies off the eastern coast of the Asia Mainland and stretches from the Sea of Okhotsk in the north to the East China Sea, the kanji that make up Japans name mean sun origin. 日 can be read as ni and means sun while 本 can be read as hon, or pon, Japan is often referred to by the famous epithet Land of the Rising Sun in reference to its Japanese name. Japan is an archipelago consisting of about 6,852 islands. The four largest are Honshu, Hokkaido, Kyushu and Shikoku, the country is divided into 47 prefectures in eight regions. Hokkaido being the northernmost prefecture and Okinawa being the southernmost one, the population of 127 million is the worlds tenth largest. Japanese people make up 98. 5% of Japans total population, approximately 9.1 million people live in the city of Tokyo, the capital of Japan. Archaeological research indicates that Japan was inhabited as early as the Upper Paleolithic period, the first written mention of Japan is in Chinese history texts from the 1st century AD. Influence from other regions, mainly China, followed by periods of isolation, from the 12th century until 1868, Japan was ruled by successive feudal military shoguns who ruled in the name of the Emperor. Japan entered into a period of isolation in the early 17th century. The Second Sino-Japanese War of 1937 expanded into part of World War II in 1941, which came to an end in 1945 following the bombings of Hiroshima and Nagasaki. Japan is a member of the UN, the OECD, the G7, the G8, the country has the worlds third-largest economy by nominal GDP and the worlds fourth-largest economy by purchasing power parity. It is also the worlds fourth-largest exporter and fourth-largest importer, although Japan has officially renounced its right to declare war, it maintains a modern military with the worlds eighth-largest military budget, used for self-defense and peacekeeping roles. Japan is a country with a very high standard of living. Its population enjoys the highest life expectancy and the third lowest infant mortality rate in the world, in ancient China, Japan was called Wo 倭. It was mentioned in the third century Chinese historical text Records of the Three Kingdoms in the section for the Wei kingdom, Wa became disliked because it has the connotation of the character 矮, meaning dwarf. The 倭 kanji has been replaced with the homophone Wa, meaning harmony, the Japanese word for Japan is 日本, which is pronounced Nippon or Nihon and literally means the origin of the sun. The earliest record of the name Nihon appears in the Chinese historical records of the Tang dynasty, at the start of the seventh century, a delegation from Japan introduced their country as Nihon
5.
Kyoto Prefecture
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Kyoto Prefecture is a prefecture of Japan in the Kansai region of the island of Honshu. The capital is the city of Kyoto, until the Meiji Restoration, the area of Kyoto Prefecture was known as Yamashiro. For most of its history, the city of Kyoto was Japans Imperial capital, the citys history can be traced back as far as the 6th century. In 544, the Aoi Matsuri was held in Kyoto to pray for good harvest, Kyoto did not start out as Japans capital. A noteworthy earlier capital was Nara, in 741, Emperor Shōmu moved the capital briefly to Kuni-kyo, between the cities of Nara and Kyoto, in present-day Kyoto Prefecture. In 784, the capital was moved to Nagaokakyō, also in present-day Kyoto Prefecture, in 794, Emperor Kanmu moved the capital to Heian-kyo, and this was the beginning of the current-day city of Kyoto. Even today, almost all of the streets, houses, stores, temples and shrines in Kyoto exist where they were placed in this year, Imperial rule was briefly restored in 1333, but another samurai clan established a new shogunate in Kyoto three years later. In 1467, a civil war, the Ōnin no Ran, took place inside Kyoto. Japan plunged into the age of warring feudal lords, a new strong man, Tokugawa Ieyasu, established the shogunate at Edo in 1603. In the 15th century AD, tea-jars were brought by the shoguns to Uji in Kyoto from the Philippines which was used in the Japanese tea ceremony, the Meiji Restoration returned Japan to imperial rule in 1868. Emperor Meiji, who was now the absolute sovereign, went to stay in Tokyo during the next year, the imperial court has not returned to Kyoto since then. During the instigation of Fuhanken Sanchisei in 1868, the received its suffix fu. The subsequent reorganization of the old provincial system merged the former Tango Province, Yamashiro Province, although many Japanese major cities were heavily bombed by U. S. bombers during World War II, the old capital escaped such devastating bombing. Sixth Army was headquartered in Kyoto, Kyoto Prefecture is almost in the center of Honshu and of Japan. It covers an area of 4,612.71 square kilometres, to the north, it faces the Sea of Japan and Fukui Prefecture. To the south, it faces Osaka and Nara Prefectures, to the east, it faces Mie and Shiga Prefectures. To the west, it faces Hyōgo Prefecture, the prefecture is separated in the middle by the Tanba Mountains. This makes its climate very different in the north and south, fifteen cities are located in Kyoto Prefecture, These are the towns and villages in each district, The city of Kyoto is famous for tourism
6.
Ceramic capacitor
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A ceramic capacitor is a fixed-value capacitor in which ceramic material acts as the dielectric. It is constructed of two or more alternating layers of ceramic and a metal layer acting as the electrodes, the composition of the ceramic material defines the electrical behavior and therefore applications. Ceramic capacitors are divided into two classes, Class 1 ceramic capacitors offer high stability and low losses for resonant circuit applications. Class 2 ceramic capacitors offer high volumetric efficiency for buffer, by-pass, ceramic capacitors, especially the multilayer style, are the most produced and used capacitors in electronic equipment that incorporate approximately one trillion pieces per year. Ceramic capacitors of special shapes and styles are used as capacitors for RFI/EMI suppression, as feed-through capacitors, since the beginning the study of electricity non conductive materials like glass, porcelain, paper and mica have been used as insulators. These materials some decades later were also well-suited for further use as the dielectric for the first capacitors, porcelain was the precursor in case of all capacitors now belonging to the family of ceramic capacitors. Even in the years of Marconis wireless transmitting apparatus, porcelain capacitors were used for high voltage. On the receiver side, the mica capacitors were used for resonant circuits. Mica dielectric capacitors were invented in 1909 by William Dubilier, prior to World War II, mica was the most common dielectric for capacitors in the United States. Mica is a material and not available in unlimited quantities. 1926 these ceramic capacitors were produced in small quantities with increasing quantities in the 1940s, the style of these early ceramics was a disc with metallization on both sides contacted with tinned wires. This style predates the transistor and was used extensively in vacuum-tube equipment from about 1930 through the 1950s, but this paraelectric dielectric had relatively low permittivity so that only small capacitance values could be realized. The expanding market of radios in the 1930s and 1940s create a demand for higher capacitance values, the higher permittivity resulted in much higher capacitance values, but this was coupled with relatively unstable electrical parameters. Therefore, these ceramic capacitors only could replace the commonly used mica capacitors for applications where stability was less important, smaller dimensions, as compared to the mica capacitors, lower production costs and independence from mica availability accelerated their acceptance. Through the complex mixture of different basic materials, the properties of ceramic capacitors can be precisely adjusted. To distinguish the properties of ceramic capacitors, standardization defined several different application classes. It included relatively long terminals forming, together with resistors and other components, because this doped material was not suitable to produce multilayers, they were replaced decades later by Y5V class 2 capacitors. The early style of the ceramic disc capacitor could be cheaply produced than the common ceramic tube capacitors in the 1950s and 1970s
7.
Bluetooth
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Bluetooth is a wireless technology standard for exchanging data over short distances from fixed and mobile devices, and building personal area networks. Invented by telecom vendor Ericsson in 1994, it was conceived as a wireless alternative to RS-232 data cables. It can connect up to seven devices, overcoming problems that older technologies had when attempting to connect to each other. Bluetooth is managed by the Bluetooth Special Interest Group, which has more than 30,000 member companies in the areas of telecommunication, computing, networking, the IEEE standardized Bluetooth as IEEE802.15.1, but no longer maintains the standard. The Bluetooth SIG oversees development of the specification, manages the qualification program, a manufacturer must meet Bluetooth SIG standards to market it as a Bluetooth device. A network of patents apply to the technology, which are licensed to individual qualifying devices, the development of the short-link radio technology, later named Bluetooth, was initiated in 1989 by Nils Rydbeck, CTO at Ericsson Mobile in Lund, Sweden, and by Johan Ullman. The purpose was to develop wireless headsets, according to two inventions by Johan Ullman, SE 8902098-6, issued 1989-06-12 and SE9202239, issued 1992-07-24, Nils Rydbeck tasked Tord Wingren with specifying and Jaap Haartsen and Sven Mattisson with developing. Both were working for Ericsson in Lund, the specification is based on frequency-hopping spread spectrum technology. The idea of this name was proposed in 1997 by Jim Kardach who developed a system that would allow mobile phones to communicate with computers, at the time of this proposal he was reading Frans G. Bengtssons historical novel The Long Ships about Vikings and King Harald Bluetooth. The implication is that Bluetooth does the same with communications protocols, the Bluetooth logo is a bind rune merging the Younger Futhark runes and, Haralds initials. Bluetooth operates at frequencies between 2402 and 2480 MHz, or 2400 and 2483.5 MHz including guard bands 2 MHz wide at the end and 3.5 MHz wide at the top. This is in the globally unlicensed Industrial, Scientific and Medical 2.4 GHz short-range radio frequency band, Bluetooth uses a radio technology called frequency-hopping spread spectrum. Bluetooth divides transmitted data into packets, and transmits each packet on one of 79 designated Bluetooth channels, each channel has a bandwidth of 1 MHz. It usually performs 800 hops per second, with Adaptive Frequency-Hopping enabled, Bluetooth low energy uses 2 MHz spacing, which accommodates 40 channels. Originally, Gaussian frequency-shift keying modulation was the modulation scheme available. Since the introduction of Bluetooth 2. 0+EDR, π/4-DQPSK and 8DPSK modulation may also be used between compatible devices, devices functioning with GFSK are said to be operating in basic rate mode where an instantaneous data rate of 1 Mbit/s is possible. The term Enhanced Data Rate is used to describe π/4-DPSK and 8DPSK schemes, the combination of these modes in Bluetooth radio technology is classified as a BR/EDR radio. Bluetooth is a protocol with a master-slave structure
8.
Electrical connector
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An electrical connector, is an electro-mechanical device used to join electrical terminations and create an electrical circuit. Electrical connectors consist of plugs and jacks, the connection may be temporary, as for portable equipment, require a tool for assembly and removal, or serve as a permanent electrical joint between two wires or devices. An adapter can be used to bring together dissimilar connectors. There are hundreds of types of electrical connectors, connectors may join two lengths of flexible copper wire or cable, or connect a wire or cable to an electrical terminal. In computing, a connector can also be known as a physical interface. Cable glands, known as cable connectors in the US, connect wires to devices rather than electrically and are distinct from quick-disconnects performing the latter. It is usually desirable for a connector to be easy to visually, rapid to assemble, require only simple tooling. In some cases an equipment manufacturer might choose a connector specifically because it is not compatible with those other sources. No single connector has all the properties, the proliferation of types is a reflection of differing requirements. Fretting is a failure mode in electrical connectors that have not been specifically designed to prevent it. Many connectors are keyed, with some mechanical component which prevents mating except with a correctly oriented matching connector, some connector housings are designed with locking mechanisms to prevent inadvertent disconnection or poor environmental sealing. Locking mechanism designs include locking levers of various sorts, screw locking, a terminal is a simple type of electrical connector that connects two or more wires to a single connection point. Wire nuts are another type of single point connector, terminal blocks provide a convenient means of connecting individual electrical wires without a splice or physically joining the ends. They are usually used to connect wiring among various items of equipment within an enclosure or to make connections among individually enclosed items. Since terminal blocks are available for a wide range of wire sizes and terminal quantity. One type of terminal block accepts wires that are prepared only by removing a short length of insulation from the end, another type accepts wires that have ring or spade terminal lugs crimped onto the wires. Printed circuit board mounted terminal blocks allow individual wires to be connected to the circuit board, a general type of connector that simply screws or clamps bare wire to a post, such connectors are frequently used in electronic test equipment and audio. Many, but not all binding posts will also accept a banana connector plug, since stripping the insulation from wires is time-consuming, many connectors intended for rapid assembly use insulation-displacement connectors so that insulation need not be removed from the wire
9.
Power supply
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A power supply is an electronic device that supplies electric energy to an electrical load. The primary function of a supply is to convert one form of electrical energy to and, as a result. Some power supplies are discrete, stand-alone devices, whereas others are built into larger devices along with their loads, examples of the latter include power supplies found in desktop computers and consumer electronics devices. Every power supply must obtain the energy it supplies to its load, as well as any energy it consumes while performing that task, all power supplies have a power input, which receives energy from the energy source, and a power output that delivers energy to the load. Some power supplies have other types of inputs and outputs as well, for such as external monitoring. Power supplies are categorized in ways, including by functional features. For example, a power supply is one that maintains constant output voltage or current despite variations in load current or input voltage. Conversely, the output of a power supply can change significantly when its input voltage or load current changes. Adjustable power supplies allow the voltage or current to be programmed by mechanical controls, or by means of a control input. An adjustable regulated power supply is one that is adjustable and regulated. Power supplies are packaged in different ways and classified accordingly, a bench power supply is a stand-alone desktop unit used in applications such as circuit test and development. Open frame power supplies have only a partial mechanical enclosure, sometimes consisting of only a mounting base, rack mount power supplies are designed to be secured into standard electronic equipment racks. An integrated power supply is one that shares a common printed circuit board with its load, power supplies can be broadly divided into linear and switching types. Linear power converters process the power directly, with all active power conversion components operating in their linear operating regions. In switching power converters, the power is converted to AC or to DC pulses before processing. A DC power supply is one that supplies a constant DC voltage to its load, depending on its design, a DC power supply may be powered from a DC source or from an AC source such as the power mains. Some DC power supplies use AC mains electricity as an energy source, such power supplies will sometimes employ a transformer to convert the input voltage to a higher or lower AC voltage. A rectifier is used to convert the output voltage to a varying DC voltage
10.
Inductor
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An inductor, also called a coil or reactor, is a passive two-terminal electrical component that stores electrical energy in a magnetic field when electric current is flowing through it. An inductor typically consists of a conductor, such as a wire. When the current flowing through an inductor changes, the magnetic field induces a voltage in the conductor. According to Lenzs law, the direction of induced electromotive force opposes the change in current that created it, as a result, inductors oppose any changes in current through them. An inductor is characterized by its inductance, which is the ratio of the voltage to the rate of change of current, in the International System of Units, the unit of inductance is the henry. Inductors have values that range from 1 µH to 1 H. Many inductors have a core made of iron or ferrite inside the coil. Along with capacitors and resistors, inductors are one of the three passive linear circuit elements that make up electronic circuits, Inductors are widely used in alternating current electronic equipment, particularly in radio equipment. They are used to block AC while allowing DC to pass and they are also used in electronic filters to separate signals of different frequencies, and in combination with capacitors to make tuned circuits, used to tune radio and TV receivers. An electric current flowing through a conductor generates a magnetic field surrounding it, any changes of current and therefore in the magnetic flux through the cross-section of the inductor creates an opposing electromotive force in the conductor. An inductor is a component consisting of a wire or other conductor shaped to increase the flux through the circuit. Winding the wire into a coil increases the number of times the magnetic flux lines link the circuit, increasing the field, the more turns, the higher the inductance. The inductance also depends on the shape of the coil, separation of the turns, by adding a magnetic core made of a ferromagnetic material like iron inside the coil, the magnetizing field from the coil will induce magnetization in the material, increasing the magnetic flux. The high permeability of a core can increase the inductance of a coil by a factor of several thousand over what it would be without it. Any change in the current through an inductor creates a changing flux, for example, an inductor with an inductance of 1 henry produces an EMF of 1 volt when the current through the inductor changes at the rate of 1 ampere per second. This is usually taken to be the relation of the inductor. The dual of the inductor is the capacitor, which stores energy in a field rather than a magnetic field. Its current-voltage relation is obtained by exchanging current and voltage in the inductor equations, the polarity of the induced voltage is given by Lenzs law, which states that it will be such as to oppose the change in current
11.
Japanese yen
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The yen is the official currency of Japan. It is the third most traded currency in the exchange market after the United States dollar. It is also used as a reserve currency after the U. S. dollar, the euro. Before the Meiji Restoration, Japans feudal fiefs all issued their own money, hansatsu, in an array of incompatible denominations. The New Currency Act of 1871 did away with these and established the yen, the former han became prefectures and their mints private chartered banks, which initially retained the right to print money. To bring an end to this situation the Bank of Japan was founded in 1882, following World War II the yen lost much of its prewar value. To stabilize the Japanese economy the exchange rate of the yen was fixed at ¥360 per $1 as part of the Bretton Woods system, when that system was abandoned in 1971, the yen became undervalued and was allowed to float. The yen had appreciated to a peak of ¥271 per $1 in 1973, then underwent periods of depreciation and appreciation due to the 1973 oil crisis, arriving at a value of ¥227 per $1 by 1980. Since 1973, the Japanese government has maintained a policy of intervention. The Japanese government focuses on an export market, and tries to ensure a low yen value through a trade surplus. Since that time, however, the yen has greatly decreased in value, the Bank of Japan maintains a policy of zero to near-zero interest rates and the Japanese government has an extreme anti-inflation policy. Yen derives from the Japanese word 圓, which is cognate with the Chinese yuan, originally, the Chinese had traded silver in mass called sycees and when Spanish and Mexican silver coins arrived, the Chinese called them silver rounds for their circular shapes. The coins and the name appeared in Japan. While the Chinese eventually replaced 圓 with 元, the Japanese continued to use the same word, the spelling and pronunciation yen is standard in English. This is because mainly English speakers who visited Japan at the end of the Edo period to the early Meiji period spelled words this way, ゑん /wen/ in historical kana orthography. In the 16th century, Japanese /e/ and /we/ both had been pronounced and Portuguese missionaries had spelled them ye, some time thereafter, by the middle of the 18th century, /e/ and /we/ came to be pronounced as in modern Japanese, although some regions retain the pronunciation. In the early Meiji era, James Curtis Hepburn, following Medhurst, spelled all es as ye in his A Japanese and that was the first full-scale Japanese-English/English-Japanese dictionary, which had a strong influence on Westerners in Japan and probably prompted the spelling yen. Hepburn revised most of yes to e in the 3rd edition in order to mirror the contemporary pronunciation and this was probably already fixed and has remained so ever since
12.
Capacitor
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A capacitor is a passive two-terminal electrical component that stores electrical energy in an electric field. The effect of a capacitor is known as capacitance, a capacitor was therefore historically first known as an electric condenser. The physical form and construction of practical capacitors vary widely and many types are in common use. Most capacitors contain at least two electrical conductors often in the form of plates or surfaces separated by a dielectric medium. A conductor may be a foil, thin film, sintered bead of metal, the nonconducting dielectric acts to increase the capacitors charge capacity. Materials commonly used as dielectrics include glass, ceramic, plastic film, paper, mica, Capacitors are widely used as parts of electrical circuits in many common electrical devices. Unlike a resistor, a capacitor does not dissipate energy. No current actually flows through the dielectric, instead, the effect is a displacement of charges through the source circuit, if the condition is maintained sufficiently long, this displacement current through the battery ceases. However, if a voltage is applied across the leads of the capacitor. Capacitance is defined as the ratio of the charge on each conductor to the potential difference between them. The unit of capacitance in the International System of Units is the farad, capacitance values of typical capacitors for use in general electronics range from about 1 pF to about 1 mF. The capacitance of a capacitor is proportional to the area of the plates. In practice, the dielectric between the plates passes a small amount of leakage current and it has an electric field strength limit, known as the breakdown voltage. The conductors and leads introduce an undesired inductance and resistance, Capacitors are widely used in electronic circuits for blocking direct current while allowing alternating current to pass. In analog filter networks, they smooth the output of power supplies, in resonant circuits they tune radios to particular frequencies. In electric power systems, they stabilize voltage and power flow. The property of energy storage in capacitors was exploited as dynamic memory in digital computers. Von Kleists hand and the water acted as conductors, and the jar as a dielectric, von Kleist found that touching the wire resulted in a powerful spark, much more painful than that obtained from an electrostatic machine
¥ 1,210.8 billion (FY 2016)
