能量轉變 的英文怎麼說
中文拼音 [néngliángzhuǎnbiàn]
能量轉變
英文
energy transformations-
Author analyzed the change and development of main fu nction of sports during five periods and suggested that the inside dynamic which make great change of main function of sports is objective demaned of human be ings existing quality and the outside dynamic is the demand of social develo pment. at the same time the author discussed dualistic economy and multiple consu ming intention confronting sports reform according to the developmental trait of sports, and concluded that we should adjust composition of sports industry to d evelop sports industry
通過分析上古、春秋戰國、漢唐、宋元明清及新中國成立五個階段中體育主要功能的轉變、演進,認為使體育功能發生較大改變的內動力是人類社會對自身生存質量的客觀要求,外動力是社會發展的需要;同時從體育功能的改變特點,討論現在體育改革所遇到二元經濟和多元消費意識的問題,從而得出:目前發展體育產業,必須走優化體育產業結構之路。The strategy need to be carried out as follows in the future : to strengthen the basic facility construction of animal husbandry in pastoral animal husbandry in order to enhance the capability of resistance to the disaster ; to convert the management mode with new technology in animal husbandry ; to use the natural grassland rationally and to speed the animal turnover in the market ; to enhance the quality of livestock and its products in order to increase the income ; to strengthen the grassland environmental construction to promote the balance between forage supply and livestock demand and to keep the sustainability of pastoral animal husbandry
在今後草原畜牧業的發展中要進一步加強畜牧業基礎設施建設,提高防災抗災能力,提高畜牧業生產中的科技含量,轉變生產經營方式,合理利用草場資源,加快牲畜的良改化速度,提高牲畜和畜產品質量,增加畜產品產量,提高經濟效益。加強草原生態環境建設,促進草畜協調發展的良性循環,走可持續發展的生態畜牧業之路。Fuel cells are devices capable of converting chemical energy into heat and dc electric energy by means of the oxidation of a fuel, usually hydrogen
燃料電池就是把化學反應的化學能直接轉化為電能的裝置。與火力發電相比,關鍵區別在於燃料電池的能量轉變過程是直接方式。This dissertation focus on a innovation methods for inverter controlled hydraulic elevator system applying pressure accumulator as the " pressure - energy transformer ". the required power supply and running energy can be reduced remarkably when accumulators storing and releasing pressure oil. then the key items about hydraulic speed control system based on the ens 1 - 2 and other hydraulic elevator standards are investigated in detail
本論文主要研究了採用蓄能器-液壓泵馬達構成的「壓力-能量轉換裝置」來儲存釋放變頻驅動液壓電梯系統的能量,從而降低液壓電梯裝機功率和運行能耗的新方案;在此基礎上,根據國內外液壓電梯的標準進行了與速度控制相關的關鍵項目測試,最後針對本課題研製的節能控制系統與當前市場上幾種典型的液壓電梯控制系統進行了能耗對比研究。The second chapter simply introduces the development of alternate asynchronous inverter technology and retrospects some types of energy - saving systems for hydraulic elevators. then the working principles of the project are discussed and analyzed at four different working status, i. e. light load upwards, heavy load upwards, light load downwards and heavy load downwards. and the chapter focus on the introduction of structure design of pump station, calculation and type selection of pump / motor reversible units, research on oil leakage principles of accumulator circuit, design of accumulator - pump / motor pressure - energy transformer and integrated valve blocks, etc. the last but not the least, the electrical wiring of vector inverter control cabin and design of computer control and data acquisition system are introduced
論文第二章首先簡單介紹了交流異步電動機變頻調速技術的發展概況,在回顧電梯液壓控制系統節能技術的基礎上,介紹了本課題研製的「採用蓄能器的液壓電梯變頻節能控制系統研究」的基本原理,分析了動力系統在電梯轎廂輕載上下行、重載上下行等四種典型工況下的基本工作狀態和工作方式;詳細地介紹了本課題節能系統液壓動力泵站的結構設計和參數設計,重點研究了液壓動力泵站的結構設計、液壓泵馬達可逆性問題及其選型設計計算、蓄能器迴路泄漏油損失機理的研究及其補償裝置的設計、蓄能器-泵馬達壓力能量轉換裝置的設計、多功能集成控制閥組的設計等內容;最後簡單介紹了本課題矢量控制變頻控制櫃的外部附件電氣接線、計算機控制及數據採集系統的硬體設計等內容。There are five parts are as follows : in part one, the concept of switching function is introduced first to establish the nonlinear mathematical model of the induction motor variable frequency speed adjustment system which is fed by a sine pulse width modulated ( spwm ) inverter and takes the effect of the main magnetic circuit saturation into consideration, then the low frequency oscillation of the system is simulated according to the model. next, from the view point of energy conversion of the inverter - induction system, a criterion for the low frequency oscillation is proposed to determine whether the system is in low frequency oscillation which is judged by whether the interval of the negative current component of the inverter input current is more than 1 / fc ( fc is the carrier wave frequency of the inverter ) or not
首先引入開關函數概念,建立了正弦脈寬調制( spwm )逆變器供電異步電動機,考慮主磁路飽和時的變頻調速系統整體數學模型,模擬系統的低頻振蕩;其次從逆變器-異步電動機系統能量轉換角度出發,提出通過檢測逆變器輸入電流中負電流的間隔時間是否大於1 / f _ c ( f _ c為逆變器載波頻率)來判定系統是否出現低頻振蕩;最後的實驗結果驗證了系統低頻振蕩建模和判據的實用性和正確性。In an ordinary resistance, the energy which is "lost" passes into heat.
在一個普通電阻中,損失的能量轉變成為熱。The essay author consult the lots of national and international related information, and proceed the biomass pyrolysis experiment, predict the biomass heat value and establish the module, and establish the experiment formula through c, h of the independent variableesign, provide the evident and the convenience for calculating the rate of the energy converting and using of the biomass equipment
本文作者在查閱國內外大量相關資料的基礎上,進行了生物質熱解的實驗,並做了生物質發熱量預測及建模研究,建立了以h和c為自變量的生物質能量預測經驗公式,為生物質氣化裝置能量轉化率計算和生物質能量利用率計算提供了依據和方便。This text completely and systematically studies the status and the development of the pyrolysis and the fluidization of biomass, which distill the bio - oil in the domestic and international area, as well as the existing problems. this thesis primarily include following aspects : ( l ), by experimenting and measuring the energy ( heat value ) and the content of c, h, n chemical element of right 20 kinds of common biomass, on the base of the experimental result, and respectively established the biomass energy predict experiment formula with the element of h and c is from change, and passed the ro. os examination, which provides the basis and convenience for flash pyrolysis fluidization device energy to convert the rate to compute with biomass energy utilization calculation ; ( 2 ), proceeded the tg and dtg experimentation equal velocity ( 10 ? / min, 20 ? / min, 40 ? / min, 60 ? / min ) heating and constant temperature heating by studying on eight kinds of biomass samples, according to the experimental data and arrhenius formula, we established the dynamics model of pyrolysis of, then, using the goast - redfern and p function, we also solved the dynamics parameters and analyze out every kind of biomass ' s frequency factor and parameters of activation energy, and established the every kind of dynamics model of pyrolysis of biomass, all of these provide the theories and basis to make sure the reactor ' s flash pyrolysis work temperature scope design and the describing of pyrolysis reactor dynamics ; ( 3 ), in order to study and ascertain the process of heat completely getting to pyrolysis time of varied size biomass particles, we observed and measured the ratio of length and diameter ( l / d ) with the varied biomass through electron microscope, we concluded the l / d ratios usually is from 5. 0 to 6. 0, the average is 5. 3 ; ( 4 ), we studied the process of biomass transiting and the theory of complete pyrolysis time with the theory of complicated heat field, we got the time ( t ) of the varied size biomass particles arriving to complete pyrolysis, and we knew that the complete pyrolysis time and the time which get to the biggest production ratio are identical, all of these studies provide the theory base for design and forecasting the flash pyrolysis reactor solid state resort time ; ( 5 ), according to the above experiment result, synthesize to make use of the engineering the mechanics, engineering the material, machine the design to learn the principle, deduce, establish the theory of rotation cone flash pyrolysis reactor material resort time ( t ) and reasonable rotation velocity ( or frequency ) relation theory ; and ( 6 ), we gave the reactor ' s smallest cone angle certain, reactor cone wall strength design theory, the reactor production ability theory, the power design method and the critical rotation velocity theory
本文較全面、系統地綜述了國內外生物質熱解液化制取生物燃油技術研究發展現狀及存在的問題,主要研究內容有: ( 1 )實驗、測定了20種常見生物質的能量(發熱量)和c 、 h 、 n元素含量,根據實驗結果分別建立了以h和c為自變量的生物質能量預測經驗公式,並通過r _ ( 0 . 05 )檢驗;為閃速熱解液化裝置能量轉化率計算和生物質能量利用率計算提供了依據和方便; ( 2 )選擇了8種生物質試樣作了等加熱速率( 10 min 、 20 min 、 40 min 、 60 min )和恆溫加熱的tg和dtg實驗,根據實驗數據和阿倫尼烏斯公式建立了生物質熱解反應動力學微分方程,並採用goast - redfem積分法和p函數對其動力學參數進行了求解,解析出各種生物質的頻率因子和活化能參數,進而建立了各種生物質的熱解動力學模型,為科學確定反應器的閃速熱解工作溫度范圍及熱解反應動力學描述,提供了理論和依據; ( 3 )為研究和確定不同尺度的生物質顆粒中心達到全熱解的時間,在體視顯微鏡下對不同粒度的生物質顆粒的長徑比進行了實驗觀察和測定,得出生物質的長徑比( l d )一般在5 . 0 6 . 0之間,平均為5 . 3的結果; ( 4 )採用復雜溫度場傳熱學理論對生物質傳熱過程及充分熱解時間理論進行了研究,解析推導出了不同尺寸生物質顆粒中心溫度達到充分熱解溫度的時間( t ) ,得出了理論推導的充分熱解時間與最大產油率的熱解時間相一致的結果,為閃速熱解反應器固相滯留時間設計和預測提供了理論依據; ( 5 )根據上述實驗結果,綜合運用工程力學、工程材料、機械設計學原理,推導、建立了轉錐式閃速熱解反應器物料滯留時間( )與轉速(或頻率)合理匹配理論; ( 6 )提出了轉錐式閃速熱解反應器的最小錐角設計、錐壁強度設計、生產能力設計理論和功率計算方法及臨界轉速理論等。Based on the theoretical analysis and experimental researches, it is presented that the wider spectra are resulted from the many fluorophores with large numbers of vibrational energy levels on the ground level in the blood cells, and the reduction of the spectral intensity is due to the reabsorption of the blood cells and the energy transfer of the collisions between the fluorophore and another one or other macromolecule. on the other hand, when the concentration of the blood cells is increased, the reabsorption of the blood cells, the secondary fluorescence due to the reabsorption and the influence of the concentration on the energy levels of fluorophores are all the factors of the red - shifted spectral peaks
在進行理論分析和研究的基礎上,提出了因血細胞中存在多種熒光團,且這些熒光團的電子能級上又存在大量的不同的振動能級,從而導致被激發的熒光團發出較寬的熒光光譜;血細胞濃度的增大,熒光團以及其他大分子之間的距離變小,造成它們之間因碰撞的能量轉移概率加大,因而易產生熒光猝滅,結果導致熒光強度的變小;血細胞溶液中重吸收所導致的熒光猝滅和二次熒光發射,以及血細胞濃度的變化對其中熒光團能級系統的影響都是導致熒光峰值波長「紅移」的原因;進而研究了led光誘導血細胞產生熒光光譜的機理。We must improve. we must make use of this opportunity to think fast, to do things fast, and the energy must run faster. then we can run faster, faster, faster, until we have vibrations as fast as the buddhas and god, so that we can become one with them, be as intelligent as they ; then we become god
我們前世曾經當過動物在過去做過石頭和樹木,但那並不代表我們必須要永遠停留在那種等級,我們應該要曉得現在我們在一個不同的等級,我們一定要前進一定要進步,我們應該利用這個機會,想快一點做事快一點能量轉動快一點,那樣我們可以越來越快,直到我們的振動力跟佛菩薩和上帝那樣快,我們就會變成和?們同一體,和?們一樣的有智慧,我們就會變成佛。Ultrasonic is a kind of mechanical wave that frequency is upper 20khz. ultrasonic may be generated by many ultrasonic transducers
超聲波是頻率高於20khz的機械波,它可由多種能量轉換器轉變而成。The change of energy in wall rock is tracked in the whole process and the amount of energy transferred to linings is also evaluated. 5 ) based on the principal of energy invariance and the energy properties of sfrc, a practical design equation that related the thickness of projecting sfrc to the energy related properties of tunnel is given in the end. this equation is then used to design a single - track railway tunnel in iii grade rock condition
並進一步推導了不同形式的構件間的能量耗散關系,為將標準試驗的能量統計結果運用於實際結構中打下了基礎; 4 )利用有限元軟體對隧道開挖過程進行了三維模擬,得到了隧道圍巖在開挖掘進過程中的能量轉化趨勢和規律,得到了鋼纖維噴射混凝土襯砌在支護過程中的能量變化; 5 )利用能量守恆原理和已經推導出的構件能量耗散關系,建立了鋼纖維噴射混凝土襯砌厚度與圍巖開挖能量變化間的關系,並運用此方法對級圍巖條件中的鐵路單線隧道的鋼纖維噴射混凝土襯砌進行了設計計算;Hydraulic torque converter is a kind of device that can transfer the power. it is widely used in automatic transmission of a car. when it is in using, it has axial displacement
液力變矩器是汽車自動調速裝置中廣泛應用的主要部件,它是利用液體作為工作介質來傳遞動力的一種裝置,其內部能量轉換和工作油的流動狀態極其復雜。The main features of the system are as follows : ( 1 ) there is no direct mechanical connection between engine and wheel, so the engine can be adjusted to work at high efficiency zone. ( 2 ) the power of the engine can be transmitted to driving axle directly by the electromagnetic force, and only part of power is converted from mechanical energy into electric energy, so the power losses in energy conversion can be reduced. ( 3 ) the system can also operate as electronic continuously variable transmission
其特點是:發動機獨立於車輪運轉,可始終在高效區工作;發動機的動力主要通過電磁力直接傳給驅動橋,僅有少部分動力經過機械能電能機械能的轉換,降低了能量轉換過程中的損失;且該系統兼備無級變速器的功能。These effects have been confirmed in highly sensitive experiments, and relativity is now a basic, everyday tool of experimental physics : particle colliders take advantage of the increase in mass and lifetime of fast particles ; experiments with radioactive isotopes depend on the conversion of mass into energy
這些效應已經由高靈敏度的實驗證實,而且相對論現在已成為實驗物理學基本的日常工具:粒子對撞機利用增加快速粒子的質量與生命期來進行實驗;放射性同位素的實驗則依靠質量轉變成能量。Hydraulic pump / motor and hydraulic accumulation are used to transform and store energy, therefore it can regenerate the loss energy during vehicle braking and use this energy when automobile is in acceleration state
本系統採用變量泵/馬達,氣囊式蓄能器為能量轉換及貯存部件,實現制動時的動能回收和啟動加速的液壓能回饋。Using energy transformation method, the characteristic map of the compressor of si a - 02 gas turbine is gained. and based on this work, effects of wet compression on compressor ' s steady - state performance are studied, which is compared with experimental results
本文根據能量轉換方法計算得到了s1a - 02燃氣輪機的壓氣機特性線,在此基礎上分析了噴水后壓氣機特性線的變化情況,並與實驗結果進行了比較。The mathematical model of working process is built, and the theoretical analysis is accomplished, too. from the viewpoint of energy building and transform, another new method, named as additional resonant starting way, is presented. the principle of working and the structure of the circuit are described in detail
通過分析負載變化對串並聯逆變器啟動的影響,在預充初始能量研究的基礎上,從能量補償和能量轉換的觀點,提出了兩種新的啟動方法:負載充磁啟動方法和附加振蕩啟動方法。A single unit that is capable of changing some form of energy, such as chemical energy, radiant energy, or heat into electricity
能把某些能量形式,如化學能、輻射能、熱能等,轉變成電能的單個裝置。分享友人