頻度中心 的英文怎麼說

The central control room of the branch is located in the bank of communications plaza in the lujiazui, shanghai, which adopts the xbrother developed professional security and facility control system which monitors and controls 10 subsystems in the central control room, including : the ups control system ; the coulometer control system ; the leaking control system ; the temperature and humidity control system ; the air conditioning control system ; the video surveillance system ; the sensor of in out water temperature control system ; the access control system ; the switch control system and ; the fire alarm system

交通銀行機房位於上海浦東新區陸家嘴金融中心的交銀金融大廈內，其機房監控系統採用我司自主研製的專業機房監控系統。對機房內的ups監控系統電量儀監測系統漏水監控系統溫濕度監控系統空調監控系統視頻監控系統進出水溫傳感器監測系統門禁監控系統開關狀態監控系統消防監控系統等10個子系統進行集中監控，對所有的設備和系統進行工作狀態運行參數報警處理等監視和管理。

2. a frequency extrapolation scheme is developed to effectively predict radar cross section using floating genetic algorithm based on the geometrical theory of diffraction ( gtd ) model. the threshold discrete fourier transform ( tdft ) is introduced for the data compression in angle domain

在目標散射中心建模方面，我們將浮點型遺傳演算法（ fga ）應用於實際人工目標的gtd模型參數的抽取，利用所抽取的模型參數完成了雷達散射截面rcs的頻率擴展以及數據壓縮，並利用擴展的數據提高了距離解析度。

It is built to provide our guest members with super healthy, super valuable and super comfortable staying experience : greentree inn - just experience laundry service ticket service fully equipped business center restaurant bar

與酒店配套的餐廳酒吧商務中心及免費寬頻，為商務度假客人提供了「超健康，超舒適，超價值，超期望」的服務： 「格林豪泰只需感受」 。

It is built to provide our guest members with super healthy, super comfortable, super valuable and super expectation staying experience : greentree inn - just experience. restaurant bar fully equipped business center laundry service ticket service

與酒店配套的餐廳酒吧商務中心及免費寬頻，為商務度假客人提供了「超健康超舒適超價值超期望」的服務「格林豪泰-只需感受」

It has 258 guestrooms and has such amenities as free broad brand internet access, an indoor bar, restaurant and a fully equipped business center. it is built to provide our guest members with super healthy, super valuable and super comfortable staying experience : greentree inn - just experience

與酒店配套的餐廳酒吧商務中心及免費寬頻，為商務度假客人提供了「超健康，超舒適，超價值，超期望」的服務： 「格林豪泰只需感受」 。

It is built to provide our guest members with super healthy, super comfortable, super valuable and super expectation staying experience, with five star lodging services at motel prices : greentree inn - just experience. restaurant bar fully equipped business center laundry service ticket service

酒店共擁有142間客房，與酒店配套的餐廳酒吧商務中心及免費寬頻，為商務度假客人提供了「超健康超舒適超價值超期望」的服務，讓您感受「末泰的價格，豪泰的服務」 。

The hotel has 142 guestrooms and has such amenities as free broad brand internet access, an indoor western style minibar, restaurant and a fully equipped business center. it is built to provide our guest members with super healthy, super comfortable, super valuable and super expectation staying experience. room services

酒店共擁有142間客房，與酒店配套的餐廳酒吧商務中心及免費寬頻，為商務度假客人提供了「超健康超舒適超價值超期望」的服務，讓您感受「末泰的價格，豪泰的服務」 。

The hotel has 128 guestrooms and has such amenities as free broad brand internet access, an indoor western style minibar, restaurant and a fully equipped business center. it is built to provide our guest members with super healthy, super valuable and super comfortable staying experience, with five star lodging services at motel prices : greentree inn - just experience

周邊餐飲，娛樂，購物場所一應俱全，與酒店配套的餐廳酒吧商務中心及免費寬頻，為商務度假客人提供了「超健康，超舒適，超價值，超期望」的服務，讓您感受「末泰的價格，豪泰的服務」 。

One is the famous negotiation protocol - contract net protocol. we extend the contract net and introduce several parameters for mental state such as trust degree, conservativeness degree, cooperation frequency and activeness degree into process of announcing and bidding. we combine the bdi model of an agent with the extended contract net and implement contract net through a series of bdi - based rules of action

研究工作主要涉及兩個方面：一是對傳統的協商協議? ?合同網協議進行了擴充，將信任度、穩健度、合作頻度和積極程度等心智狀態參數引入到合同網協議的招投標過程中，並將agent的bdi模型與擴充的合同網協議相結合，通過一系列的bdi行為驅動規則實現合同網協議。

Both fine and coarse center frequency controls, combined with a scanwidth selector provide simple frequency domain measurements from 100 khz div

中心頻率控制有微調和粗調，掃頻寬度選擇從

Our treatment shows in the raman effect case, mnls solitons, the same as nls solitons, keeps its energy, initial center and initial phase unchanged. however, the raman effect, not the same as nls solitons. reduces its amplitude, widens its width and under the same conditions, the self - frequency shift of mnls soltions is closer to the result of numerical simulation. in the raman effect together with frequency filters case, mnls solitons, the same as nls solitons, keeps initial center and initial phase unchanged and bandwidth - limited frequency filters can make the mean frequency of mnls soltion stand a steady value at the red side of the initial mean frequency, i. e. suppress the self - frequency shift of mnls soltions. and that, the other physical parameters of mnls soltion last stand a steady value. however under the same conditions, the steady value of the mean frequency of mnls soltions is closer to the initial mean frequency and the result of numerical simulation

有所不同的是， raman效應雖然不改變孤子能量，但會引起孤子峰值的下降和寬度變寬，且在同一條件下， mnls孤子微擾理論得到的自頻移比nls孤子微擾理論得到的更接近直接數值計算結果。有限帶寬的頻率濾波也不引起mnls孤子初始中心、初始位相的改變，選取適當的頻率濾波器參數值能使孤子的平均頻率穩定在初始平均頻率的紅側一穩定值，抑制了自頻移，而且孤子的各物理量最後都穩定在一穩定值，這些與nls孤子微擾理論都是類似的。有所不同的是，寬度為飛秒量級下， mnls孤子平均頻率的穩定值更接近初始平均頻率，更接近數值計算結果。

Accompanying power system reformation, chongqing power network will be merged into the middle china power network. according to national " power attempt communicating center assessing measure, chongqing power network modulates not only network frequency but also the power of chuan yu - the middle china network alliance line

伴隨著電力體制改革的推進，重慶電網即將併入華中電網，按照國家電力調度通信中心頒發的考核辦法，重慶電網既要承擔調整電網頻率的任務，又要承擔調整川渝?華中電網聯絡線功率的任務。

The services of electric power communication network have already expanded from telephone scheduling and transmitting data in low speed to digital user ' s service with high speed and great capacity, such as computer internet, wide area network and video transmission, etc. its structure has already developed from simple star topology, which is used to serve schedular center, to today ' s multicenter network to assure that the network can serve the requirement of increasing transmission of electric power information

電力通信網的業務已從調度電話、低速率遠動數據傳送擴展到高速、數字化、大容量的用戶業務，例如計算機網際網路、廣域網、視頻傳送等。電力通信網的結構也已從單一服務于調度中心的簡單星形方式發展到今天多中心的網狀網路，以保證能為日益增長的電力信息傳輸需求服務。

Finally according to the above mentioned results, two universal ulpa were made and their performance were tested. these results indicated that on the whole, the values of parameters, such as sensitivity of each element, center frequency, relative bandwidth and cross coupling among near elements and so on, and their consistency all meet the ask of technique. therefore, both of transducers performance are favorable

最後根據上述研討結果，製作了兩個通用超產相控線陣換能器，並進行了性能測試，結果表明兩個換能器各陣元靈敏度、中心頻率、相對帶寬、相鄰陣元間串波等參數值及其一致性均基本滿足技術要求，換能器性能良好。

Abstract : biological invasions are a continuous feature of a non - equilibrium world, ever more so as a result of accidental and deliberate introductions by mankind. while many of these introductions are apparently harmless, others have significant consequences for organisms native to the invaded range, and entire communities may be affected. here we provide a survey of common models of range expansion, and outline the consequences these models have for patterns in genetic diversity and population structure. we describe how patterns of genetic diversity at a range of markers can be used to infer invasion routes, and to reveal the roles of selection and drift in shaping population genetic patterns that accompany range expansion. we summarise a growing range of population genetic techniques that allow large changes in population size ( bottlenecks and population expansions ) to be inferred over a range of timescales. finally, we illustrate some of the approaches described using data for a suite of invasions by oak gallwasps ( hymenoptera, cynipidae, cynipini ) in europe. we show that over timescales ranging from 500 10000 years, allele frequency data for polymorphic allozymes reveal ( a ) a consistent loss of genetic diversity along invasion routes, confirming the role of glacial refugia as centres of genetic diversity over these timescales, and ( b ) that populations in the invaded range are more subdivided genetically than those in the native range of each species. this spatial variation in population structure may be the result of variation in the patchiness of resources exploited by gallwasps, particularly host oak plants

文摘:生物入侵是不均衡世界的一個永恆話題，尤其是當人類有意或無意地引入物種后.很多引入顯然是無害的，但另外一些則有著嚴重的後果，會給入侵地的生物以至於整個生物群落造成影響.本文總結了分佈區擴張的常見模式，概述了它們對遺傳多樣性和種群結構式樣所造成的影響.描述了如何根據以一批遺傳標記所得到的遺傳多樣性式樣來推斷入侵途徑，來揭示伴隨擴張選擇和漂變在形成種群遺傳樣式中的作用.本文對日益增多的群體遺傳學方法進行了總結，這些技術可以用來在不同的時間尺度上推斷種群規模所發生的巨大變化（瓶頸效應及種群擴張） .最後，我們以歐洲櫟癭蜂（膜翅目，癭蜂科，癭蜂族）一系列入侵的數據為例對一些方法進行了說明.從500 10000年的時間尺度上，多態的等位酶位點上等位基因頻率的數據表明: 1 ）遺傳多樣性沿入侵路線呈不斷下降的趨勢，支持了冰河期避難所作為遺傳多樣性中心的作用; 2 ）入侵地區的種群與該物種原產地的種群相比，遺傳上的分化更為強烈.這種種群結構在空間上的變異可能是被櫟癭蜂開發的資源尤其是櫟樹寄主在斑塊上出現變異的反映

The hotel has 124 guestrooms and has such amenities as vod, restaurant, a fully equipped business center and free broadband internet access. it is built to provide our valuable guests with a healthy, comfortable, value and beyond expectation staying experience

酒店共擁有124間套客房，配套有vod點播電視商務中心餐廳免費寬頻等，為商務度假客人提供「超健康超舒適超價值超期望"的服務。

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。

With the development of communications and network technology, more and more power control systems are connected into the power grid. the data interchange among dispatch center, electric plant, substation and customers is increasing quickly. it ’ s a great challenge for the security and reliability of the power network and control systems

隨著通信技術和網路技術的發展，接入調度數據網的系統越來越多，調度中心、電廠、變電站、用戶等之間進行的數據交換也越來越頻繁，這對電力監控系統和數據網路的安全性、可靠性和實時性提出了新的挑戰。

Based on the unified recursive formula, the four algorithms included in this study are the central difference method, the newrnark ' s method, z - transform method, and duhamel ' s step integral method. the accuracy, the phase and other existent problem are studied in this paper. it is proved in this paper that the recursive parameters b1and b2are relate to the poles of theoretical transfer function

分析中可以發現，中心差分方法， newmark中點加速度方法、 z變換方法及duhamel逐步積分法在精度范圍內其計算相位是沒有畸變的，中國地震局工程力學研究所頃土學位論文一但是中心差分方法， newmark中點加速度方法隨著采樣間隔及系統自振頻率的增大，系統的固有自振周期被改變，其傳遞函數的共振區域與理論傳遞函數的共振區域會發生分離。

Transformer tap position changes frequently in power systems. if control center does n ' t receive correct network parameters, se ca n ' t get the real network states

系統中變壓器抽頭位置的變化十分頻繁，若調度中心不能及時得到正確的網路參數，狀態估計的結果將不能真實反映當時的網路狀態。