Yahoo奇摩 網頁搜尋

  1. 鋁合金鞋櫃 相關
    廣告
  1. Aluminium alloy - Wikipedia

    en.wikipedia.org › wiki › Aluminium_alloy

    Aluminium alloys (or aluminum alloys; see spelling differences) are alloys in which aluminium (Al) is the predominant metal. The typical alloying elements are copper, magnesium, manganese, silicon, tin and zinc.There are two principal ...

  2. Geox - Wikipedia

    en.wikipedia.org › wiki › Geox
    • Corporate History
    • Research and Development
    • External Links

    The company was founded in 1995 by by Mario Polegato. The brand name, Geox, was created from a mixture between the Greek word “geo” (earth), and “x”, a letter-element symbolizing technology.[citation needed] Polegato was born in 1952 near Treviso. Originally groomed to take over the family wine-making business, company promotional material has it that the idea for the shoe came when he participated in a wine industry conference in Reno; while out jogging in Reno's hot desert climate, his feet got hot from the exertion and he had the idea to cut a couple of holes in the soles of his shoes with a Swiss Army knife. He developed the idea into a viable product with the help of a small leather-goods business his family owned. After unsuccessfully pitching his invention to several established footwear manufacturers, but after having passed the market testing phase for a line of children’s footwear, Polegato began large-scale production of shoes under the Geox brand name. That same year, he...

    The Geox group has consistently invested in innovation, ever since it was founded. Its Montebelluna head offices are host to R&D facilities, which are unique in their kind[citation needed]. Here, 15 engineers, chemists and physicists are employed in research on perspiration and human-generated heat-movement patterns, testing all materials used in their footwear and manufacturing clothing. The Montebelluna-based team of scientists have created and patented new machinery to help them pursue their research. Geox also works with major research labs and universities to test and refine new technology.[citation needed]

    • 1995
    • €850.1 million (2010)
    • 2,590 (end 2010)
    • Montebelluna, Italy
  3. IKEA - Wikipedia

    en.wikipedia.org › wiki › IKEA

    Products Ready-to-assemble furniture, homeware, food products Revenue €41.3 billion (FY 2019) Website about.ikea.com www.ingka.com Retail page www.ikea.com IKEA (Swedish: ) is a Swedish-origin Dutch (Netherlands)-headquartered multinational ...

  4. Heat exchanger - Wikipedia

    en.wikipedia.org › wiki › Heat_exchanger
    • Flow Arrangement
    • Types
    • HVAC and Refrigeration Air Coils
    • Helical-Coil Heat Exchangers
    • Spiral Heat Exchangers
    • Selection
    • Monitoring and Maintenance
    • in Nature
    • in Industry
    • in Aircraft
    Fig. 1: Shell and tube heat exchanger, single pass (1–1 parallel flow)
    Fig. 2: Shell and tube heat exchanger, 2-pass tube side (1–2 crossflow)
    Fig. 3: Shell and tube heat exchanger, 2-pass shell side, 2-pass tube side (2-2 countercurrent)

    Double pipe heat exchangers are the simplest exchangers used in industries. On one hand, these heat exchangers are cheap for both design and maintenance, making them a good choice for small industries. On the other hand, their low efficiency coupled with the high space occupied in large scales, has led modern industries to use more efficient heat exchangers like shell and tube or plate. However, since double pipe heat exchangers are simple, they are used to teach heat exchanger design basics to students as the fundamental rules for all heat exchangers are the same. 1. Double-pipe heat exchanger (a) When the other fluid flows into the annular gap between two tubes, one fluid flows through the smaller pipe. The flow may be a current flow or parallel flow in a double pipe heat exchanger. (b) Parallel flow, where at the same point, the hot and cold liquids join, flow in the same direction and exit at the same end. (c) Counter flow, where at opposite ends, hot and cold fluids join, flow...

    One of the widest uses of heat exchangers is for refrigeration and air conditioning. This class of heat exchangers is commonly called air coils, or just coils due to their often-serpentine internal tubing, or condensers in the case of refrigeration, and are typically of the finned tube type. Liquid-to-air, or air-to-liquid HVAC coils are typically of modified crossflow arrangement. In vehicles, heat coils are often called heater cores. On the liquid side of these heat exchangers, the common fluids are water, a water-glycol solution, steam, or a refrigerant. For heating coils, hot water and steam are the most common, and this heated fluid is supplied by boilers, for example. For cooling coils, chilled water and refrigerant are most common. Chilled water is supplied from a chiller that is potentially located very far away, but refrigerant must come from a nearby condensing unit. When a refrigerant is used, the cooling coil is the evaporator, and the heating coil is the condenser in th...

    Although double-pipe heat exchangers are the simplest to design, the better choice in the following cases would be the helical-coil heat exchanger (HCHE): 1. The main advantage of the HCHE, like that for the Spiral heat exchanger (SHE), is its highly efficient use of space, especially when it's limited and not enough straight pipe can be laid. 2. Under conditions of low flowrates (or laminar flow), such that the typical shell-and-tube exchangers have low heat-transfer coefficients and becoming uneconomical. 3. When there is low pressure in one of the fluids, usually from accumulated pressure drops in other process equipment. 4. When one of the fluids has components in multiple phases (solids, liquids, and gases), which tends to create mechanical problems during operations, such as plugging of small-diameter tubes.Cleaning of helical coils for these multiple-phase fluids can prove to be more difficult than its shell and tube counterpart; however the helical coil unit would require cl...

    A modification to the perpendicular flow of the typical HCHE involves the replacement of shell with another coiled tube, allowing the two fluids to flow parallel to one another, and which requires the use of different design calculations. These are the Spiral Heat Exchangers (SHE), which may refer to a helical (coiled) tube configuration, more generally, the term refers to a pair of flat surfaces that are coiled to form the two channels in a counter-flow arrangement. Each of the two channels has one long curved path. A pair of fluid ports are connected tangentiallyto the outer arms of the spiral, and axial ports are common, but optional. The main advantage of the SHE is its highly efficient use of space. This attribute is often leveraged and partially reallocated to gain other improvements in performance, according to well known tradeoffs in heat exchanger design. (A notable tradeoff is capital cost vs operating cost.) A compact SHE may be used to have a smaller footprint and thus l...

    Due to the many variables involved, selecting optimal heat exchangers is challenging. Hand calculations are possible, but many iterations are typically needed. As such, heat exchangers are most often selected via computer programs, either by system designers, who are typically engineers, or by equipment vendors. To select an appropriate heat exchanger, the system designers (or equipment vendors) would firstly consider the design limitations for each heat exchanger type.Though cost is often the primary criterion, several other selection criteria are important: 1. High/low pressure limits 2. Thermal performance 3. Temperature ranges 4. Product mix (liquid/liquid, particulates or high-solids liquid) 5. Pressure drops across the exchanger 6. Fluid flow capacity 7. Cleanability, maintenance and repair 8. Materials required for construction 9. Ability and ease of future expansion 10. Material selection, such as copper, aluminium, carbon steel, stainless steel, nickel alloys, ceramic, poly...

    Online monitoring of commercial heat exchangers is done by tracking the overall heat transfer coefficient. The overall heat transfer coefficient tends to decline over time due to fouling. By periodically calculating the overall heat transfer coefficient from exchanger flow rates and temperatures, the owner of the heat exchanger can estimate when cleaning the heat exchanger is economically attractive. Integrity inspection of plate and tubular heat exchanger can be tested in situ by the conductivity or helium gas methods. These methods confirm the integrity of the plates or tubes to prevent any cross contamination and the condition of the gaskets. Mechanical integrity monitoring of heat exchanger tubes may be conducted through Nondestructive methods such as eddy currenttesting.

    Humans

    The human nasal passages serve as a heat exchanger, with cool air being inhaled and warm air being exhaled. Its effectiveness can be demonstrated by putting the hand in front of the face and exhaling, first through the nose and then through the mouth. Air exhaled through the nose is substantially cooler.This effect can be enhanced with clothing, by, for example, wearing a scarf over the face while breathing in cold weather. In species that have external testes (such as human), the artery to t...

    Birds, fish, marine mammals

    "Countercurrent" heat exchangers occur naturally in the circulation system of fish, whales and other marine mammals. Arteries to the skin carrying warm blood are intertwined with veins from the skin carrying cold blood, causing the warm arterial blood to exchange heat with the cold venous blood. This reduces the overall heat loss in cold water. Heat exchangers are also present in the tongue of baleen whales as large volume of water flow through their mouths.Wading birds use a similar system t...

    Carotid rete

    The carotid rete is a counter-current heat exchanging organ in some ungulates. The blood ascending the carotid arteries on its way to the brain, flows via a network of vessels where heat is discharged to the veins of cooler blood descending from the nasal passages. The carotid rete allows Thomson's gazelle to maintain its brain almost 3 °C (5.4 °F) cooler than the rest of the body, and therefore aids in tolerating bursts in metabolic heat production such as associated with outrunning cheetahs...

    Heat exchangers are widely used in industry both for cooling and heating large scale industrial processes. The type and size of heat exchanger used can be tailored to suit a process depending on the type of fluid, its phase, temperature, density, viscosity, pressures, chemical composition and various other thermodynamic properties. In many industrial processes there is waste of energy or a heat stream that is being exhausted, heat exchangers can be used to recover this heat and put it to use by heating a different stream in the process. This practice saves a lot of money in industry, as the heat supplied to other streams from the heat exchangers would otherwise come from an external source that is more expensive and more harmful to the environment. Heat exchangers are used in many industries, including: 1. Waste water treatment 2. Refrigeration 3. Wine and beermaking 4. Petroleum refining 5. Nuclear power In waste water treatment, heat exchangers play a vital role in maintaining opt...

    In commercial aircraft heat exchangers are used to take heat from the engine's oil system to heat cold fuel.This improves fuel efficiency, as well as reduces the possibility of water entrapped in the fuel freezing in components.

  5. Celine (brand) - Wikipedia

    en.wikipedia.org › wiki › Celine_(brand)
    • Creation of The Brand
    • A New Positioning
    • Acquisition by LVMH
    • Céline’s Designers
    • Phoebe Philo: A Decade as Creative Director
    • Hedi Slimane
    • Marketing
    • Retail
    • External Links

    In 1945, Céline Vipiana (1915–1997) and her husband, Richard, created one of the first luxury brands in the industry, Céline, a made-to-measure children's shoe business, and opened a first boutique at 52 rue Malte in Paris.The brand was recognised by its logo, the red elephant created by Raymont Peynet.

    In 1960, the brand decided to change its positioning by focusing its business on a ready-to-wear fashion brand for women with a sportswear approach. Henceforth, the brand offered a range of leather goods such as bags, loafers, gloves and clothes.Céline Vipiana remained the designer from 1945-1997. In 1964, the launch of the new fragrance "Vent fou" and the new ‘American Sulky’ collection of accessories gained success. The trench became the chief product of the house. Prompted by the popularity of leather, Céline opened a leather goods factory in Florence. In 1973, Céline redesigned its logo with the intertwined "C" Sulky canvas, linked to the Arc-de-Triomphe, which appeared as a symbol for Parisians.At that time, Céline began its expansion in the world with the opening of various boutiques in Monte Carlo, Geneva, Hong Kong, Lausanne, Toronto and Beverly Hills. The brand’s founders wished to be part of a charitable association, so Richard Vipiana established the Céline-Pasteur Prize,...

    In 1987, Bernard Arnault decided to buy into Céline’s capital. However, it was only in 1996 that the brand was integrated into the LVMH group for 2.7 billion French francs ($540 million). LVMHpropelled the brand to fame with the opening of a boutique at 36 avenue Montaigne in Paris.

    After Céline Vipiana, Peggy Huynh Kinh, appointed by Bernard Arnault, took over the house’s artistic direction in 1988. She modernised the brand and initiated seasonal collections for accessories. American fashion designer Michael Kors was named women's ready-to-wear designer and creative director for Céline in 1997. During his tenure at Céline, Kors brought modern femininity with a luxurious spirit.In 2004, he left the fashion luxury house to focus his career on his own brand. In 2005, Italiandesigner Roberto Menichetti was named creative director. A year later, Croatian designer Ivana Omazic directed the design studio. Omazic was a former consultant for the brand and previously worked with Romeo Gigli, Prada, Jil Sanderand Miu Miu. Omazic designed for Céline until 2008, after further disappointments for the brand.

    On September 4, 2008, the fashion portal Women's Wear Daily announced that Bernard Arnault, president of LVMH, had appointed Phoebe Philo as the new creative director of Céline. Philo's tenure at Céline began in October 2008, and she presented her first ready-to-wear collection for Spring/Summer 2010 at Paris Fashion Week. Pierre-Yves Roussel, chief executive officer of LVMH’s fashion division, said that recruiting Philo was giving her the opportunity to express her vision.In 2009, Vogue Magazine defined her style as the “cool minimal trend”. Philo studied at Central Saint Martins School of Art and Design in London. Prior to Céline, Philo held the position of Design Director at Chloé. In 2010, Philo received the Designer of the Year award from British Fashion Council. In 2011, she was awarded International Designer of the Year by the Council of Fashion Designers of America.Both prizes were awarded for her work at Céline. In December 2017, Philo announced her departure from Céline af...

    On January 21, 2018, LVMH announced the appointment of Hedi Slimane as Artistic, Creative and Image Director, set to join the house on February 1. He is to direct all Céline collections, extending the brand's offering with the launch of men’s fashion, couture and fragrances. In September 2018, Slimane presented an updated Celine logo on the brand's Instagram account.Slimane created his retail flagship concept stores in Paris, Tokyo, Shanghai, Los Angeles, Madrid, Milan and London.Slimane replaced the brand's tradition style with his personal signature "driven by youth culture, indie rock and sulking adolescence."

    Dakota Johnson was the first celebrity to wear Slimane’s first Celine collection on the red carpet for the Los Angeles premiere of Suspiria.

    The brand owns almost 150 stores worldwide and is distributed through a selective network including department stores such as Barneys New York (New York), Bergdorf Goodman (New York), Harrods (London) and Galeries Lafayette (Paris).[citation needed]

  6. Fashion - Wikipedia

    en.wikipedia.org › wiki › Fashion

    Fashion is a form of self-expression and autonomy at a particular period and place and in a specific context, of clothing, footwear, lifestyle, accessories, makeup, hairstyle, and body posture. The term implies a look defined by the fashion ...

  7. Maserati - Wikipedia

    en.wikipedia.org › wiki › Maserati
    • History
    • Motorsport
    • See Also
    • External Links

    The Maserati brothers

    The Maserati brothers, Alfieri, Bindo, Carlo, Ettore, and Ernesto, were all involved with automobiles from the beginning of the 20th century. Alfieri, Bindo, and Ernesto built 2-litre Grand Prix cars for Diatto. In 1926, Diatto suspended the production of race cars, leading to the creation of the first Maserati and the founding of the Maserati marque. One of the first Maseratis, driven by Alfieri, won the 1926 Targa Florio. Maserati began making race cars with 4, 6, 8, and 16 cylinders (two s...

    Orsi ownership

    In 1937, the remaining Maserati brothers sold their shares in the company to the Adolfo Orsi family, who, in 1940, relocated the company headquarters to their home town of Modena, where it remains to this day. The brothers continued in engineering roles with the company. Racing successes continued, even against the giants of German racing, Auto Union and Mercedes. In back-to-back wins in 1939 and 1940, an 8CTF won the Indianapolis 500, making Maserati the only Italian manufacturer ever to do...

    Citroën ownership

    In 1968, Maserati was taken over by Citroën. Adolfo Orsi remained the nominal president, but Maserati was controlled by its new owner. The relationship started as a joint venture, made public in January 1968, in which Maserati would design and manufacture an engine for Citroën's upcoming flagship called SM. Launched in 1970, the SM was a four-seat front-wheel-drive coupé, powered by a Maserati Tipo C114 2.7-litre 90° V6 engine; this engine and its gearbox had been used in other vehicles, such...

    Throughout its history, Maserati has participated in various forms of motorsports including Formula One, sportscar racing and touring car racing, both as a works team and through private entrants. Notable drivers include Juan Manuel Fangio and Prince Biraof Siam. Maserati developed fifteen GranTurismo MC racecars, homologated for the European Cup and National Endurance Series, one of which was raced by GT motorsport organization Cool Victory in Dubai in January, 2010.

  8. Light-emitting diode - Wikipedia

    en.wikipedia.org › wiki › Light-emitting_diode

    A bulb-shaped modern retrofit LED lamp with aluminum heat sink, a light diffusing dome and E27 screw base, using a built-in power supply working on mains voltage. A light-emitting diode ( LED) is a semiconductor light source that emits light ...

  9. Sport - Wikipedia

    en.wikipedia.org › wiki › Sport
    • Meaning and Usage
    • History
    • Fair Play
    • Participation
    • Amateur and Professional
    • Technology
    • Sports and Education
    • Politics
    • Religious Views
    • Sources

    Etymology

    The word "sport" comes from the Old French desport meaning "leisure", with the oldest definition in English from around 1300 being "anything humans find amusing or entertaining". Other meanings include gambling and events staged for the purpose of gambling; hunting; and games and diversions, including ones that require exercise.Roget's defines the noun sport as an "activity engaged in for relaxation and amusement" with synonyms including diversion and recreation.

    Nomenclature

    The singular term "sport" is used in most English dialects to describe the overall concept (e.g. "children taking part in sport"), with "sports" used to describe multiple activities (e.g. "football and rugby are the most popular sports in England"). American English uses "sports" for both terms.

    Definition

    The precise definition of what separates a sport from other leisure activities varies between sources. The closest to an international agreement on a definition is provided by SportAccord, which is the association for all the largest international sports federations (including association football, athletics, cycling, tennis, equestrian sports, and more), and is therefore the de factorepresentative of international sport. SportAccord uses the following criteria, determining that a sport shoul...

    Artifacts and structures suggest sport in China as early as 2000 BC. Gymnastics appears to have been popular in China's ancient past. Monuments to the Pharaohs indicate that a number of sports, including swimming and fishing, were well-developed and regulated several thousands of years ago in ancient Egypt. Other Egyptian sports included javelin throwing, high jump, and wrestling. Ancient Persian sports such as the traditional Iranian martial art of Zoorkhaneh had a close connection to warfare skills. Among other sports that originated in ancient Persia are polo and jousting. A wide range of sports were already established by the time of Ancient Greece and the military culture and the development of sport in Greece influenced one another considerably. Sport became such a prominent part of their culture that the Greeks created the Olympic Games, which in ancient times were held every four years in a small village in the Peloponnesus called Olympia. Sports have been increasingly organ...

    Sportsmanship

    Sportsmanship is an attitude that strives for fair play, courtesy toward teammates and opponents, ethical behaviour and integrity, and grace in victory or defeat. Sportsmanship expresses an aspiration or ethos that the activity will be enjoyed for its own sake. The well-known sentiment by sports journalist Grantland Rice, that it's "not that you won or lost but how you played the game", and the modern Olympic creed expressed by its founder Pierre de Coubertin: "The most important thing... is...

    Cheating

    Key principles of sport include that the result should not be predetermined, and that both sides should have equal opportunity to win. Rules are in place to ensure fair play, but participants can break these rules in order to gain advantage. Participants may cheat in order to unfairly increase their chance of winning, or in order to achieve other advantages such as financial gains. The widespread existence of gambling on the results of sports fixtures creates a motivation for match fixing, wh...

    Doping and drugs

    The competitive nature of sport encourages some participants to attempt to enhance their performance through the use of medicines, or through other means such as increasing the volume of blood in their bodies through artificial means. All sports recognised by the IOC or SportAccord are required to implement a testing programme, looking for a list of banned drugs, with suspensions or bans being placed on participants who test positive for banned substances.

    Gender participation

    Female participation in sports continues to rise alongside the opportunity for involvement and the value of sports for child development and physical fitness. Despite increases in female participation during the last three decades, a gap persists in the enrolment figures between male and female players in sports-related teams. Female players account for 39% of the total participation in US interscholastic athletics.

    Youth participation

    Youth sport presents children with opportunities for fun, socialisation, forming peer relationships, physical fitness, and athletic scholarships. Activists for education and the war on drugs encourage youth sport as a means to increase educational participation and to fight the illegal drug trade. According to the Center for Injury Research and Policy at Nationwide Children's Hospital, the biggest risk for youth sport is death or serious injury including concussion. These risks come from runn...

    Disabled participation

    Disabled sports also adaptive sports or parasports, are sports played by persons with a disability, including physical and intellectual disabilities. As many of these are based on existing sports modified to meet the needs of persons with a disability, they are sometimes referred to as adapted sports. However, not all disabled sports are adapted; several sports that have been specifically created for persons with a disability have no equivalent in able-bodied sports.

    Sport can be undertaken on an amateur, professional or semi-professional basis, depending on whether participants are incentivised for participation (usually through payment of a wage or salary). Amateur participation in sport at lower levels is often called "grassroots sport". The popularity of spectator sport as a recreation for non-participants has led to sport becoming a major business in its own right, and this has incentivised a high paying professional sportculture, where high performing participants are rewarded with pay far in excess of average wages, which can run into millions of dollars. Some sports, or individual competitions within a sport, retain a policy of allowing only amateur sport. The Olympic Games started with a principle of amateur competition with those who practised a sport professionally considered to have an unfair advantage over those who practised it merely as a hobby. From 1971, Olympic athletes were allowed to receive compensation and sponsorship, and...

    Technology plays an important part in modern sport. With it being a necessary part of some sports (such as motorsport), it is used in others to improve performance. Some sports also use it to allow off-field decision making. Sports science is a widespread academic discipline, and can be applied to areas including athlete performance, such as the use of video analysis to fine-tune technique, or to equipment, such as improved running shoes or competitive swimwear. Sports engineering emerged as a discipline in 1998 with an increasing focus not just on materials design but also the use of technology in sport, from analytics and big data to wearable technology. In order to control the impact of technology on fair play, governing bodies frequently have specific rules that are set to control the impact of technical advantage between participants. For example, in 2010, full-body, non-textile swimsuits were banned by FINA, as they were enhancing swimmers' performances. The increase in techno...

    Research suggests that sports have the capacity to connect youth to positive adult role models and provide positive development opportunities, as well as promote the learning and application of life skills. In recent years the use of sport to reduce crime, as well as to prevent violent extremism and radicalization, has become more widespread, especially as a tool to improve self-esteem, enhance social bonds and provide participants with a feeling of purpose. There is no high-quality evidence that shows the effectiveness of interventions to increase sports participation of the community in sports such as mass media campaigns, educational sessions, and policy changes.There is also no high-quality studies that investigate the effect of such interventions in promoting healthy behavior change in the community.

    Benito Mussolini used the 1934 FIFA World Cup, which was held in Italy, to showcase Fascist Italy. Adolf Hitler also used the 1936 Summer Olympics held in Berlin, and the 1936 Winter Olympics held in Garmisch-Partenkirchen, to promote the Nazi ideology of the superiority of the Aryan race, and inferiority of the Jews and other "undesirables".Germany used the Olympics to give off a peaceful image while secretly preparing for war. When apartheid was the official policy in South Africa, many sports people, particularly in rugby union, adopted the conscientious approach that they should not appear in competitive sports there. Some feel this was an effective contribution to the eventual demolition of the policy of apartheid, others feel that it may have prolonged and reinforced its worst effects. In the history of Ireland, Gaelic sports were connected with cultural nationalism. Until the mid-20th century a person could have been banned from playing Gaelic football, hurling, or other spor...

    Sport was an important form of worship in Ancient Greek religion. The ancient Olympic Games, called the Olympiad, were held in honour of the head deity, Zeus, and featured various forms of religious dedication to him and other gods.As many Greeks travelled to see the games, this combination of religion and sport also served as a way of uniting them. The practice of athletic competitions has been criticised by some Christian thinkers as a form of idolatry, in which "human beings extol themselves, adore themselves, sacrifice themselves and reward themselves."Sports are seen by these critics as a manifestation of "collective pride" and "national self-deification" in which feats of human power are idolized at the expense of divine worship. Tertullian condemns the athletic performances of his day, insisting "the entire apparatus of the shows is based upon idolatry."The shows, says Tertullian, excite passions foreign to the calm temperament cultivated by the Christian:

    This article incorporates text from a free content work. Licensed under CC BY-SA 3.0 IGO. Text taken from Strengthening the rule of law through education: a guide for policymakers, UNESCO, UNESCO. UNESCO. To learn how to add open license text to Wikipedia articles, please see this how-to page. For information on reusing text from Wikipedia, please see the terms of use.

  10. GLOBALG.A.P - Wikipedia

    en.wikipedia.org › wiki › GLOBALG

    GLOBALG.A.P. is a farm assurance program, translating consumer requirements into Good Agricultural Practice. EurepGAP is a common standard for farm management practice created in the late 1990s by several European supermarket chains and their ...

  11. 其他人也搜尋了
  1. 鋁合金鞋櫃 相關
    廣告