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单选题
Thermal energy in transition is also referred to as （）.
A
heat
B
power
C
horsepower
D
foot-pound
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更多 “单选题Thermal energy in transition is also referred to as （）.A heatB powerC horsepowerD foot-pound” 相关考题
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此题为判断题(对，错)。
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What drives us is our mission to acelerate the world' s transition to sustainable, clean energy ,
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A、until
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C、if
D、through
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共用题干
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共用题干
Better Solar Energy Systems: More Heat, More LightSolar photovoltaic thermal energy systems,or PVTs,generate both heat and electricity,but until now they haven't been very good at the heat-generating part compared to a stand-alone solar thermal collector. That's because they operate at low temperatures to cool crystalline silicon solar cells,which lets the silicon generate more electricity but isn't a very efficient way to gather heat.That's a problem of economics. Good solar hot-water systems can harvest much more energy than a solar-electric system at a substantially lower cost. And it's also a space problem:photovol-taic cells can take up all the space on the roof,leaving little room for thermal applications.In a pair of studies,Joshua Pearce,an associate professor of materials science and engineer-ing,has devised a solution in the form of a better PVT made with a different kind of silicon.His research collaborators are Kunal Girotra from Thin Silicon in California and Michael Pathak and Stephen Harrison from Queen's University,Canada.Most solar panels are made with crystalline silicon,but you can also make solar cells out of amorphous silicon,commonly known as thin-film silicon.They don't create as much electricity, but they are lighter,flexible,and cheaper. And,because they require much less silicon,they have a greener footprint. Unfortunately,thin-film silicon solar cells are vulnerable to some bad-news physics in the form of the Staebler-Wronski effect."That means that their efficiency drops when you expose them to light-pretty much the worst possible effect for a solar cell,"Pearce explains,which is one of the reasons thin-film solar panels make up only a small fraction of the market.However,Pearce and his team found a way to engineer around the Staebler-Wronski effect by incorporating thin-film silicon in a new type of PVT. You don't have to cool down thin-film silicon to make it work.In fact,Pearce's group discovered that by heating it to solar-thermal operating temperatures,near the boiling point of water,they could make thicker cells that largely overcame the Staebler-Wronski effect. When they applied the thin-fulm silicon directly to a solar thermal en-ergy collector,they also found that by baking the cell once a day,they boosted the solar cell's e-lectrical efficiency by over 10 percent. One of the problems PVTs have is that______.A: their thermal applications are costlyB: they are too expensive to affordC: they occupy too much spaceD: it is hard to fix them on the roof
考题
共用题干
Better Solar Energy Systems: More Heat, More LightSolar photovoltaic thermal energy systems,or PVTs,generate both heat and electricity,but until now they haven't been very good at the heat-generating part compared to a stand-alone solar thermal collector. That's because they operate at low temperatures to cool crystalline silicon solar cells,which lets the silicon generate more electricity but isn't a very efficient way to gather heat.That's a problem of economics. Good solar hot-water systems can harvest much more energy than a solar-electric system at a substantially lower cost. And it's also a space problem:photovol-taic cells can take up all the space on the roof,leaving little room for thermal applications.In a pair of studies,Joshua Pearce,an associate professor of materials science and engineer-ing,has devised a solution in the form of a better PVT made with a different kind of silicon.His research collaborators are Kunal Girotra from Thin Silicon in California and Michael Pathak and Stephen Harrison from Queen's University,Canada.Most solar panels are made with crystalline silicon,but you can also make solar cells out of amorphous silicon,commonly known as thin-film silicon.They don't create as much electricity, but they are lighter,flexible,and cheaper. And,because they require much less silicon,they have a greener footprint. Unfortunately,thin-film silicon solar cells are vulnerable to some bad-news physics in the form of the Staebler-Wronski effect."That means that their efficiency drops when you expose them to light-pretty much the worst possible effect for a solar cell,"Pearce explains,which is one of the reasons thin-film solar panels make up only a small fraction of the market.However,Pearce and his team found a way to engineer around the Staebler-Wronski effect by incorporating thin-film silicon in a new type of PVT. You don't have to cool down thin-film silicon to make it work.In fact,Pearce's group discovered that by heating it to solar-thermal operating temperatures,near the boiling point of water,they could make thicker cells that largely overcame the Staebler-Wronski effect. When they applied the thin-fulm silicon directly to a solar thermal en-ergy collector,they also found that by baking the cell once a day,they boosted the solar cell's e-lectrical efficiency by over 10 percent. Which of the following is NOT mentioned as an advantage of thin-film silicon solar cells?A:.They are electrically efficient.B: They are less expensive.C:.They are flexible.D: They are environment friendly.
考题
共用题干
Better Solar Energy Systems: More Heat, More LightSolar photovoltaic thermal energy systems,or PVTs,generate both heat and electricity,but until now they haven't been very good at the heat-generating part compared to a stand-alone solar thermal collector. That's because they operate at low temperatures to cool crystalline silicon solar cells,which lets the silicon generate more electricity but isn't a very efficient way to gather heat.That's a problem of economics. Good solar hot-water systems can harvest much more energy than a solar-electric system at a substantially lower cost. And it's also a space problem:photovol-taic cells can take up all the space on the roof,leaving little room for thermal applications.In a pair of studies,Joshua Pearce,an associate professor of materials science and engineer-ing,has devised a solution in the form of a better PVT made with a different kind of silicon.His research collaborators are Kunal Girotra from Thin Silicon in California and Michael Pathak and Stephen Harrison from Queen's University,Canada.Most solar panels are made with crystalline silicon,but you can also make solar cells out of amorphous silicon,commonly known as thin-film silicon.They don't create as much electricity, but they are lighter,flexible,and cheaper. And,because they require much less silicon,they have a greener footprint. Unfortunately,thin-film silicon solar cells are vulnerable to some bad-news physics in the form of the Staebler-Wronski effect."That means that their efficiency drops when you expose them to light-pretty much the worst possible effect for a solar cell,"Pearce explains,which is one of the reasons thin-film solar panels make up only a small fraction of the market.However,Pearce and his team found a way to engineer around the Staebler-Wronski effect by incorporating thin-film silicon in a new type of PVT. You don't have to cool down thin-film silicon to make it work.In fact,Pearce's group discovered that by heating it to solar-thermal operating temperatures,near the boiling point of water,they could make thicker cells that largely overcame the Staebler-Wronski effect. When they applied the thin-fulm silicon directly to a solar thermal en-ergy collector,they also found that by baking the cell once a day,they boosted the solar cell's e-lectrical efficiency by over 10 percent. Which of the following statrnents is true?A: Thin-film silicon's electrical efficiency improves when heated up.B: New techniques have been developed to produce thin-film silicon.C: Thin-film silicon works efficiently at low temperature.D: A new material enlarging the Staebler-WronsKi effect has been created.
考题
Recently，electric vehicles （EVs） have been claimed to provide a pathway for the transition towards sustainable transportation______EVs’ potential to solve energy and environmental problems，although new problems such as battery waste might appear.A.in behalf of
B.in honor of
C.in charge of
D.in view of
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Which of the following is a compelling reason to deploy IBM Systems Director Active Energy Manager (AEM) in a data center with high energy utilization?（）A、Removes the requirement for Intelligent PDUsB、Monitor and balance disk speeds according to utilization needsC、Is a required element for EnergyStar certification of the server/data centerD、Monitor and report power and thermal trending to optimize energy consumption
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对于过渡动画transition-property以下语法格式应用正确的是（）。A、transition-duration：none；B、transition-duration：0.3sC、transition-duration：-1s；D、transition-duration：500ms；
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transition-property属性语法格式正确的是（）。A、transition-property：name；B、transition-property：none；C、transition-property：widthheight；D、transition-property：all；
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Which of the following is a compelling reason to deploy IBM Systems Director Active Energy Manager (AEM) in a data center with high energy utilization?（）A、Removes the requirement for Intelligent PDUsB、Monitor and balance disk speeds according to utilization needsC、Is a required element forEnergyStar certification of the server/data centerD、Monitor and report power and thermal trending to optimize energy consumption "Pass Any Exam. AnyTime." - 14 IBM 000-106: Practice Exam
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A customer wants to monitor energy consumption for all of their IBM systems. What part of the IBM Systems Director family supports this function?（）A、Active Energy ManagerB、PowerVM Energy ManagerC、Power and Energy ManagerD、Thermal and Energy Manager
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Select 3 features of IBM’s CoolBlue Energy Management Innovation：（）A、IBM Active Energy Manager， Calibrated Vectored Cooling， and Water Chilled Door eXchanger B、IBM Active Energy Manager， Front Door Heat eXchanger， and Calibrated Vectored CoolingC、Power Configurator， Calibrated Vectored Cooling， and Rear Door Heat eXchangerD、Thermal Diagnostics， Front Door Heat eXchanger， and Rear Door Heat eXchanger
考题
提供过渡高度层和过渡高度。（）A、Transition layer and transition altitude are provided.B、Transition layer and transition height are provided.C、Transition level and transition height are provided.D、Transition level and transition altitude are provided.
考题
过渡高度与过渡高度层之间的空间。（）A、The airspace between the transition altitude and the transition level.B、The airspace between the transition height and the transition level.C、The airspace between the transition height or the transition level.D、The airspace between the transition altitude or the transition level.
考题
单选题It takes a comprehensive strategy to grow data center capabilities while containing power and cooling costs. Which IBM thermal environment solution can best support this strategy with no effect on performance？ （）A
IBM Rear Door Heat eXchangerB
IBM Active Energy ManagerC
IBM Calibrated Vector CoolingD
All of the above
考题
单选题The ash content of a fuel oil is significant to the operating engineer because it （）A
is an indication of the amount of noncombustible material present in the oilB
indicates the quantity of energy released by burning a unit amount of the fuelC
is useful for determining proper atomization temperaturesD
reflects the overall thermal efficiency of the fuel oil service system
考题
单选题This new method not only saves time but also saves energy（）operating on two batteries instead of four.A
inB
byC
onD
for
考题
单选题Which of the following is a compelling reason to deploy IBM Systems Director Active Energy Manager (AEM) in a data center with high energy utilization?（）A
Removes the requirement for Intelligent PDUsB
Monitor and balance disk speeds according to utilization needsC
Is a required element for EnergyStar certification of the server/data centerD
Monitor and report power and thermal trending to optimize energy consumption
考题
单选题The movement of heat within a fluid, caused by the application of thermal energy, is called （）.A
radiationB
conductionC
convectionD
condo-radiation
考题
单选题In general, there are two parts in an SES, One of these is antenna eqipment also referred to as（）.A
BDEB
UDEC
AEPD
ADE
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问答题Practice 2 Inadequacy of energy resources or more often of the technologies and organizations for harvesting, converting, and distributing those resources has meant insufficient energy benefits and hence inconvenience, deprivation and constraints on growth. The 1970’s, then, represented a turning point. After decades of constancy or decline in monetary costs—and of relegation of environmental and sociopolitical costs to secondary status—energy was seen to be getting costlier in all respects. It began to be probable that excessive energy costs could pose threats on insufficient supply. It also became possible to think that expanding some forms of energy supply could create costs exceeding the benefits.
考题
单选题The transition of the Earth’s magnetic field is possibly caused by _____.A
the flows of melted iron inside the EarthB
the periodical movement of the EarthC
the mechanical energy of the solar systemD
the force coming from outer space
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