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Leakage (electronics), Leakage Current
A leakage occurs when fluid is lost through a leak. Leakage may also refer to: * Leakage (chemistry), a process in which material is lost through holes or defects in containers * Leakage (economics) ** Carbon leakage or emissions leakage, whereby another country increases its greenhouse gas emissions in response to a unilateral climate policy * Leakage (electronics) **Crosstalk (electronics), also known as Leakage, where signals are picked up by an unintended device ** Spill (audio), where audio from one source is picked up by a microphone intended for a different source * Leakage (machine learning) * Leakage (semiconductors) * Leakage (retail) * Leakage effect, the loss of tourist revenue from a country * Memory leak, in computer science * Spectral leakage, in signal processing Similar uses * Fecal incontinence * Urinary incontinence See also * Leak (other) __NOTOC__ A leak is a way for matter to escape a container. Leak may also refer to: Information leaks * News le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leak
A leak is a way (usually an opening) for fluid to escape a container or fluid-containing system, such as a tank or a ship's hull, through which the contents of the container can escape or outside matter can enter the container. Leaks are usually unintended and therefore undesired. The word ''leak'' usually refers to a gradual loss; a sudden loss is usually called a ''spill''. The matter leaking in or out can be gas, liquid, a highly viscous paste, or even a solid such as a powdered or granular solid or other solid particles. Sometimes the word "''leak''" is used in a figurative sense. For example, in a news leak secret information becomes public. According to ASTM D7053-17, water leakage is the passage of (liquid) water through a material or system designed to prevent passage of water. Types and possible causes Types of leak openings include a puncture, gash, rust or other corrosion hole, very tiny ''pinhole leak'' (possibly in imperfect welds), crack or microcrack, or i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leakage (chemistry)
A leak is a way (usually an opening) for fluid to escape a container or fluid-containing system, such as a tank or a ship's hull, through which the contents of the container can escape or outside matter can enter the container. Leaks are usually unintended and therefore undesired. The word ''leak'' usually refers to a gradual loss; a sudden loss is usually called a ''spill''. The matter leaking in or out can be gas, liquid, a highly viscous paste, or even a solid such as a powdered or granular solid or other solid particles. Sometimes the word "''leak''" is used in a figurative sense. For example, in a news leak secret information becomes public. According to ASTM D7053-17, water leakage is the passage of (liquid) water through a material or system designed to prevent passage of water. Types and possible causes Types of leak openings include a puncture, gash, rust or other corrosion hole, very tiny ''pinhole leak'' (possibly in imperfect welds), crack or microcrack, or i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leakage (economics)
In economics, a leakage is a diversion of funds from some iterative process. For example, in the Keynesian depiction of the circular flow of income and expenditure, leakages are the non-consumption uses of income, including saving, taxes, and imports. In this model, leakages are equal in quantity to injections of spending from outside the flow at the equilibrium aggregate output. The model is best viewed as a circular flow between national income, output, consumption, and factor payments. Savings, taxes, and imports are "leaked" out of the main flow, reducing the money available in the rest of the economy. Imported goods are one way this may happen, transferring money earned in the country to another one. The simplest possible model of credit creation assumes all loans borrowed from banks in a fractional-reserve banking system are re-deposited to the system. This allows simple calculation of the amount of credit created. In practice, though, cash leakages occur in the form of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carbon Leakage
Carbon leakage occurs when there is an increase in greenhouse gas emissions in one country as a result of an emissions reduction by a second country with a strict climate policy. Carbon leakage may occur for a number of reasons: * If the emissions policy of a country raises local costs, then another country with a more relaxed policy may have a trading advantage. If demand for these goods remains the same, production may move offshore to the cheaper country with lower standards, and global emissions will not be reduced. * If environmental policies in one country add a premium to certain fuels or commodities, then the demand may decline and their price may fall. Countries that do not place a premium on those items may then take up the demand and use the same supply, negating any benefit. There is no consensus over the magnitude of long-term leakage effects. This is important for the problem of climate change. Carbon leakage is one type of spill-over effect. Spill-over effects ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leakage (electronics)
In electronics, leakage is the gradual transfer of electrical energy across a boundary normally viewed as insulating, such as the spontaneous discharge of a charged capacitor, magnetic coupling of a transformer with other components, or flow of current across a transistor in the "off" state or a reverse-polarized diode. In capacitors Gradual loss of energy from a charged capacitor is primarily caused by electronic devices attached to the capacitors, such as transistors or diodes, which conduct a small amount of current even when they are turned off. Even though this off current is an order of magnitude less than the current through the device when it is on, the current still slowly discharges the capacitor. Another contributor to leakage from a capacitor is from the undesired imperfection of some dielectric materials used in capacitors, also known as ''dielectric leakage''. It is a result of the dielectric material not being a perfect insulator and having some non-zero conductivit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spill (audio)
Spill (also known as bleed and leakage) is the occurrence in sound recording (particularly in close miking) and live sound mixing whereby sound is picked up by a microphone from a source other than that which is intended. Spill is usually seen as a problem, and various steps are taken to avoid it or reduce it. In some styles of music, such as orchestral music, jazz, and blues, it is more likely to be accepted or even seen as desirable. Occurrence Spill occurs when sound is detected by a microphone not intended to pick it up (for example, the vocals being detected by the microphone for the guitar). Spill is often undesirable in popular music recording, as the combined signals during the mix process can cause phase cancellation and may cause difficulty in processing individual tracks. It also causes difficulty in overdubbing, where the spill from the sound being replaced may still be audible on other channels. For sound reinforcement in live shows, mic bleed can make it hard for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leakage (machine Learning)
In statistics and machine learning, leakage (also known as data leakage or target leakage) is the use of information in the model training process which would not be expected to be available at prediction time, causing the predictive scores (metrics) to overestimate the model's utility when run in a production environment. Leakage is often subtle and indirect, making it hard to detect and eliminate. Leakage can cause a statistician or modeler to select a suboptimal model, which could be outperformed by a leakage-free model. Leakage modes Leakage can occur in many steps in the machine learning process. The leakage causes can be sub-classified into two possible sources of leakage for a model: features and training examples. Feature leakage Feature or column-wise leakage is caused by the inclusion of columns which are one of the following: a duplicate label, a proxy for the label, or the label itself. These features, known as anachronisms, will not be available when the model is us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leakage (semiconductors)
In electronics, leakage is the gradual transfer of electrical energy across a boundary normally viewed as insulating, such as the spontaneous discharge of a charged capacitor, magnetic coupling of a transformer with other components, or flow of current across a transistor in the "off" state or a reverse-polarized diode. In capacitors Gradual loss of energy from a charged capacitor is primarily caused by electronic devices attached to the capacitors, such as transistors or diodes, which conduct a small amount of current even when they are turned off. Even though this off current is an order of magnitude less than the current through the device when it is on, the current still slowly discharges the capacitor. Another contributor to leakage from a capacitor is from the undesired imperfection of some dielectric materials used in capacitors, also known as ''dielectric leakage''. It is a result of the dielectric material not being a perfect insulator and having some non-zero conductivit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leakage (retail)
Retail leakage occurs when local people spend a larger amount of money on goods than local businesses report in sales, usually due to people traveling to a neighboring town to buy goods. Retail sales leakage occurs when there is unsatisfied demand within the trading area and that the locality should provide extra stores spaces for such type of businesses. After all, retail leakage does not necessarily translate into opportunity. For instance, there could be tough competition in a nearby locality that leads the market for same type of product. Many small - to medium-sized communities experience leakage of retail expenditures as local citizens drive to neighboring towns to shop at national retail chains (e.g. Tesco, Asda) or eat at national restaurant chains (e.g. Slug and Lettuce, Harvester). Attracting such national retail chain stores and restaurants to a community can prevent this type of expenditure leakage and create local jobs. The economic definition of leakage is a situation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leakage Effect
In the study of tourism, the leakage is the way in which revenue generated by tourism is lost to other countries' economies. Leakage may be so significant in some developing countries that it partially neutralizes the money generated by tourism. Methods Leakage occurs through seven different mechanisms. It is an intrinsic component of international tourism and thus is present in every country, to widely varying degrees. Goods and services Many countries must purchase goods and services to satisfy their visitors. This includes the cost of raw materials used to make tourism-related goods, such as souvenirs. For starting tourism industries, this is a significant problem, as some countries must import as much as 50% of tourism-related products. Infrastructure Some less economically developed countries do not have the domestic ability to build tourism-related infrastructure (hotels, airports, etc.). The cost of such infrastructure is then leaked out of the country. Foreign factors of p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Memory Leak
In computer science, a memory leak is a type of resource leak that occurs when a computer program incorrectly manages memory allocations in a way that Computer memory, memory which is no longer needed is not released. A memory leak may also happen when an object (computer science), object is stored in memory but cannot be accessed by the running code (i.e. unreachable memory). A memory leak has symptoms similar to a number of other problems and generally can only be diagnosed by a programmer with access to the program's source code. A related concept is the "space leak", which is when a program consumes excessive memory but does eventually release it. Because they can exhaust available system memory as an application runs, memory leaks are often the cause of or a contributing factor to software aging. Consequences A memory leak reduces the performance of the computer by reducing the amount of available memory. Eventually, in the worst case, too much of the available memory may b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
