比容比功率 的英文怎麼說
中文拼音 [bǐróngbǐgōnglǜ]
比容比功率
英文
specific capacity-
The characteristics of various solid - state power - combining techniques and the principles of the waveguide - based power combining structure are compared and analyzed in detail. the power combiner is based on a double antipodal finline - to - microstrip transition structure. the proposed 2 2 combining structure is optimized by using 3 - d fields simulation tools cst
主要內容為: 1 .研究和對比了各種固態功率合成技術的特點，詳細地分析了波導基空間功率合成器的工作原理，提出了一種基於雙對極鰭線-微帶過渡的2 2路毫米波功率合成器結構，藉助三維場模擬軟體cst對該無源網路進行了優化設計。It ' s found that the high exponent gaussian feed overmatch general gaussian feed on radiation characteristic and power capacity
同時，將高次高斯饋源的性能與一般高斯饋源進行了比較，發現其無論是在功率容量還是在輻射特性上均超過了後者。It contributes to the deeper comprehesion of these probability distributions, affords more detailed theoretical basis for further studying and simulating satellite mobile channels, ? theoretical analyses and discussions of the models which are often used in the study of the propagating characteristics of satallite mobile channels are given ; meantime, some discussions on the work of model simulations are also given, ? incorrect derivation of the equality between c. loo model and corazza model in some other papers is pointed out. via the conception of received power, we derivate that in the rural environments these two models really have the equal relationship by the way of theoretical derivation and simulatant fittings. therefore, it is able to use corazza model in studying the characteristics of satellite mobile channels in the rural environments and able to avoid the iterant work of modeling, in order to enhance the efficiency and accuracy of research work, ? detailed processes of simulating lutz model by using matlab6. 0 _ simulink4. 0 and the results of comparisions are given
本文包含有以下的主要內容： ?對衛星移動通信通道傳播特性研究中常用的三個概率分佈給出了詳細的推導過程；以便對這幾個在衛星移動通信通道傳播特性的研究中常用的概率分佈函數有更深的理解，對進一步研究衛星移動通信通道傳播特性和對通道的建模提供了更為詳盡的理論基礎； ?對衛星移動通信通道傳播特性的研究中常用的通道模型進行了理論上的分析和討論，並對衛星移動通信通道建模的研究工作提出了一定的看法； ?指出了以前的文獻中關于c . loo模型和corazza模型的等同性的證明錯誤；並從接收信號功率的角度出發，通過理論推導及模擬曲線擬合重新證明了在鄉村環境下，這兩個模型的確是具有等同性的；從而在對鄉村環境下的衛星移動通信通道傳播特性進行研究時，可以只採用corazza模型來對實際的通道進行建模，這樣可以避免重復的建模工作並提高研究工作的效率和準確性； ?給出了lutz模型在matlab6 . 0 _ simulink4 . 0環境下的軟體模擬實現的詳細過程和整體模擬測試的對比結果，保證了該模型在硬體實現時的可靠性和可行性，從而可以將它們應用於指導模型的硬體模擬實現並可以降低硬體實現時的風險。This paper, based on the electric policies of some city, compares in aspects of the capacities and electric powers of main equipment, initial investment, annual operating power costs and the economic analysis of ice storage air condition with normal air condition in different quantity of the storage - ice
本文鑒于某市的電價政策，通過計算某工程的設計日及全年空調負荷，得出各自所需的設備容量及電功率大小，分析比較了初投資及年運行電費等，並按不同的設計日負荷對此工程進行了不同蓄冰量時的經濟分析比較。By analyzing the running speed of two - wheels, three - wheels, four - wheels project, adopting small three - wheels project with two independent driving and veering system. based on these, we can calculate the driving power of the agv, the twists of the motor and the storage battery capacity. 4
通過對兩輪、三輪和四輪小車方案的運動速度的分析和比較，採用兩輪獨立驅動、差速轉向的三輪小車設計方案，並對小車驅動功率、電機扭矩和蓄電池容量進行了計算。By compared with the simulation results and the experiment results, we come to the conclusions that : ( 1 ) circuit with assistant network can widen soft - switching extent in lagging arm, reduces duty - cycle loss on the secondary, diminishes switching dissipation of inverter spot - welding power source. ( 2 ) the range of resonant capacitor, the important factor to soft - switching process, not only affects zero - voltage turn - off of power switches, but also affects the range of zero - voltage turn - on of power switches. so resonant capacitors must be considered according to many aspects ; ( 3 ) it easily fulfils soft - switching condition in lagging arm as leakage inductance of power transformer increases, but bigger leakage inductance of power transformer increases opening dissipation of transformer and decreases efficiency of soft - switching inverter power source
通過模擬結果與軟開關點焊逆變器試驗結果的對比分析，得到了如下主要結論：採用輔助網路可以完全拓寬全橋軟開關逆變器的滯后橋臂軟開關范圍，減小了次級占空比丟失，降低了逆變電阻點焊電源的開關損耗；諧振電容是影響軟開關工作狀態的重要因素，其大小不僅影響開關管的零電壓關斷，同時也影響開關管的零電壓開通范圍，因此，諧振電容應該綜合考慮；功率變壓器漏感越大，越容易滿足滯后橋臂的軟開關條件，但是大的漏感也使變壓器的通態損耗增加，降低了軟開關逆變器的效率。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。The directional routing protocol ds _ dsr put forward by the author is the improvement of the current protocol dsr, complete routine discovery and maintenance by directional neighbor nodes routing table, source routing and directional steering. the research discovers the application of the directional antenna, compare the omnidirectional antenna can increases the networks " total throughput, obviously reduces the co _ channel interference ( cci ), multiple access interference ( mai ), enlarges the nodes " signal and interference to noise ratio ( sinr ), and because of the high gain of directional antenna can realize the communication with farther distance and less jump, end to end delay can decrease deeply, simultaneously, security of networks can be improved partially, the node energy also can be saved easily by power control
本文提出的定向路由協議ds _ dsr是基於對現有協議dsr的改進下實現的，通過定向鄰節點路由表、定向源路由和定向搜索來完成路由發現與維護。研究發現，定向天線的應用，相比全向天線可明顯提高網路的總的吞吐量，減少通道干擾、多址干擾，提高信干噪比，且由於定向天線的高增益可實現較遠距離、較少跳數的通信，減少了路由發現時間，這樣大大減小了傳輸時延，網路的整體性能得到了不同程度的提高，同時部分地解決安全問題，通過功率控制還可較容易的實現節能的目的。A composite electrode material comprising carbon nanotube and transition metal oxide may meet both the powerand the energy requirements. the properties of supercapacitor utilizing carbon nanotube as electrode material are studied
通過充分利用其較大的比表面積和適宜的孔徑，可望得到大容量、高功率的超級電容器，與過渡金屬氧化物復合更能提高其綜合性能。We derived theory for abstraction of bandwidth resource and characterization of system capacity for multi - class fading system. bandwidth resources allocated to a user can be abstracted as effective bandwidth, determined by the user ’ s source data rate and target bit error rate. system capacity can be characterized by a theoretical bound. simulations show that actual system capacity is close to the theoretical bound
為一個用戶所分配的帶寬資源被表示為有效帶寬，用戶對數據速率和比特誤碼率的要求決定了對有效帶寬的要求。利用有效帶寬的概念來描述系統的用戶容量並給出了系統容量的理論界限，進一步地，還得到了系統存在發射功率限制時的容量界限。This experiment include many contents, in a word, that is summer condition experiment, winter condition experiment > summer - winter transition condition experiment and winter - summer transition condition experiment, furthermore summer condition experiment still include flux changing experiment and winter condition experiment still include thermal balance experiment this article dealt with the data of the test, calculating out energy absorbing ( energy discharging ) of buried pipe in winter condition ( summer condition ), input power of heat pump x heat exchanging of piece buried pipe length x co - efficiency performance ? op ( energy efficiency rate ? er ) and average heat exchanging coefficient ; in additiont this article compares the inlet water temperature and outlet water temperature of underground the first layer and the second layer buried pipe when heat pump was running, the results are that the heat exchanging ability of the second layer buried pipe outgos the first layer buried pipe, and heat exchanging is more stable ; and still analyse earth temperature resuming in the transition season. the results are earth temperature resume fast in the first week when the heat pump runs off
本文測試內容相當多，概括地說就是四個工況的測試，即夏季製冷工況的測試、冬季供熱工況的測試、夏?冬過渡季測試和冬?夏過渡季測試；另外在夏季工況的測試中還進行了變流量測試，在冬季工況的測試中還進行了熱平衡測試。本文對測試數據進行了處理，計算出了冬（夏）季工況埋管吸（放）熱量、熱泵空調器供熱量（製冷量） 、熱泵空調器輸入功率、埋管單位管長換熱量、供熱性能系數（製冷能效比）和平均傳熱系數等；另外，還比較了熱泵運行時地下一二層埋管進出水溫度變化情形，得出地下二層埋管換熱能力優于地下一層埋管，且換熱很穩定；並分析了過渡季地下一二層埋管溫度恢復情形，得出熱泵系統停機一周內地溫恢復特別快。Experimental sample dct375 with collector - combed structure has better parameter such as icm, pq, pd and / r etc. than traditional - structure devices and overseas devices of the same kind. collector - combed structure technology opens up a new way for the further research of new high - frequency, microwave power devices
研製出的梳狀集電結（基區）結構試驗管dct375 ，其最大電流容量、最大輸出功率、最大耗散功率以及頻率特性等電參數明顯比傳統結構器件和國外同類產品有大的提高。Electrochemical supercapacitor is a new energy storage component between batteries and electrostatic capacitors, which has higher power density than that of batteries and higher energy density than that of electrostatic capacitor
電化學超級電容器是一種介於電池和靜電電容之間的新型儲能元件，具有功率密度比電池高，能量密度比靜電電容高的優點。Supercapacitors, a new energy storage components between batteries and electrostatic capacitors, when work with batteries, can meet the high power out - put need of electric vehicles when starting - up or acceleration for their power density could be tens times higher than that of batteries
超級電容是一種介於電池和靜電電容之間的新型儲能元件，其功率密度比電池高數十倍，能量密度比靜電電容高數十倍。利用超極電容和電池組成混合動力系統，能夠很好的滿足電動汽車啟動、加速等高功率密度輸出場合的需要。Supercapacitors, new energy storage components between batteries and electrostatic capacitors, could meet the high power need of electric vehicles when starting - up or accelerating for their power density could be tens of times higher than batteries
超級電容器是一種介於電池和靜電電容器之間的新型儲能元件，其功率密度比電池高數十倍，能夠滿足電動汽車啟動、加速等高功率輸出的需要。In recent years, supercapacitors as the electrical energy storage systems have attracted growing attention due to the higher specific power than batteries and higher specific energy than conventional capacitors. considerable efforts have been devoted to developing and improving the performance of new available electrode materials
超級電容器是近年來發展起來的一種新型儲能器件，其比電容為常規靜電電容器的100倍以上，能量密度可以達到化學電源的十分之一左右，卻有著比電池高10倍以上功率密度。Chapter 2 compares the differences of the current - fed converter and the voltage - fed converter used in induction heating power, then induces the power regulation methods of the series resonant inverter and compares the characteristic of these methods. and then, a capacitive pwm & pfm control method which is suitable for medium and small power out induction heating is given
第二章對感應加熱電源中的電流型逆變器和電壓型逆變器作了比較分析，歸納了串聯諧振逆變器幾種常用的調功方法，對這幾種控制方法的優缺點進行了比較，提出了適用於中小功率感應加熱的容性pwm & pfm控制方法。An electrochemical capacitor is new storing energy system between batteries and conventional capacitors. it is intensively used as memory back - up sources for computers and power sources in many fields of electronic and communication equipment because of its high specific power and good cycle life
電化學電容器是介於電池與傳統電容器之間的一種新型的儲能裝置，由於它具有比功率高、循環性能好的特點，因此可以用作計算機的后備電源、小型電子儀器的功率電源。Super capacitor, which possesses the features of high specific power, fast charge and discharge rate and long cycle life and so on, is becoming to be one important field of the ev in recent years
超級電容器因其具有比功率高、充電速度快以及循環使用壽命長等特點，成為近年來電動車動力系統開發中備受關注的儲能設備之一。On the basis of comparing the several kinds of commonly battery used in electric vehicles, the characteristics of mh - ni battery and the estimation method of the state - of - charge ( soc ) of it is analysis especially in the article
在比較了幾種電動車常用的蓄電池的基礎上，文中重點分析了混合動力用高比功率鎳氫電池的一些特性，並介紹了一種用於高比功率鎳氫電池的剩餘容量（ soc ）的估計方法。分享友人