日變動系數 的英文怎麼說
中文拼音 [rìbiàndòngxìshǔ]
日變動系數
英文
daily variation coefficient-
The construction of land use status information system improves the accuracy and the trends of times of land use information, it automatically stores, manages, researches, inquires, counts, analyzes, renews and defends land use status graph which is digital, solves the problem of the renewal of land use status graph and data. it provides not only modern technology means for everyday professional work in county level land management department, but also basic data and scientific basis for land use renewable investigation, dynamic monitoring, land use totality planning. on the other hand, it lays a foundation for the establishment of cropland transform system, land exploitation and readjustment, approvable management system of construction project used land, management system of rural land register
土地利用現狀信息系統的建設，提高了土地利用現狀信息的準確性和現勢性，實現了對土地利用現狀圖件的存儲、管理、檢索、查詢、統計、分析、變更、維護的數字化和自動化，從根本上解決了土地利用現狀圖及數據的更新問題，不僅為縣級土地管理部門的日常業務工作提供了現代化的技術手段，而且為土地利用變更調查、動態監測、土地利用總體規劃提供了基礎數據和科學依據，為農地轉用制度、土地開發整理、建設項目用地審批管理制度及農村地籍管理制度的建立莫定了現代化基礎，同時也可為土地利用動態監測、土地利用規劃、建設用地的審批和管理提供技術服務。In view of bearing capacity of the elastoplastic theory analysis, the author made a comparison between the achieved bearing capacity limit load pi / 4 of round base ( space problem ) and the limit load pi / 4 of bar groundwork foundation design ( plane problem ) from soil mechanics at home and abroad as well as foundation criterion, and explained why the value of formula in present design criterion from soil mechanics is inclined to be conservative. in the light of the author ' s many years experience of vibration test on the spot and the research work of relevant projects, the author worked over the dynamic pile testing of the bearing capacity of foundation and batholith, and gathered the parameter of dynamic analysis and testing. the author also talked over the difficult point of pile foundation design criteria in present batholith engineering world, i. e. the confirmation of batholith bearing capacity of pile end, from the following aspects : a ) confirmation of single axis counter - pressure strength of rock in house ; b ) f. e. m calculation of elastoplastic model ; c ) calculation of soil mechanics ; d ) deep well load test
然後，對巖土工程領域至今尚未解決，甚至不為人注意的考慮地基變形的地基承載力問題進行了實用化的探討，提出了考慮地基變形的地基承載力上程計算方法；對基於彈塑性理論分析的地基承載力國內尚未見報道的空間問題得到了圓形基礎（空間問題）的承載力界限荷載p _ （ 1 / 4 ） ，並與國內外土力學專著及地基基礎設計規范中的條形基礎（平面問題）的界限荷載p _ （ 1 / 4 ） ，進行了對比，從而定量上解釋了目前設計規范引用土力學承載力公式值偏於保守的這一情況；根據本文作者多年從事現場地基工程振動試驗及相關課題的研究工作，本文以截頭錐模型模擬地基，對地基（巖基）承載力的動測法進行了研究，為各類地基（包括巖基） ，匯總了動力分析和檢測川的參數：針對日前巖土工程界應用樁基設計規范中的難點? ?樁端巖基承載力的確定問題，從巖石室內單軸抗壓強度確定、基於彈塑性模型的有限單元法計算、土力學計算及深斤載荷試驗四方面進行了深入討論；本文作者根據多年現場載荷試驗的工程實踐，對深井荷試驗裝置的核心部分? ?反力裝置，設計了側壁支撐反力加載系統，該加載系統具有實用、簡便、穩定及安個等優點。She is as in a field a silken tent at midday when the sunny summer breeze has dried the dew and all its ropes relent, so that in guys it gently sways at ease, and its supporting central cedar pole, that is its pinnacle to heavenward and signifies the sureness of the soul, seems to owe naught to any single cord, but strictly held by none, is loosely bound by countless silken ties of love and thought to everything on earth the compass round, and only by one ' s going slightly taut in the capriciousness of summer air is of the slightest bondage made aware
她如田野中的一頂絲綢帳篷在夏日的中午，微風吹乾了她上面的露珠也吹柔了懸掛的細繩她悠然自得地擺動支撐她的雪松樹干透過她的頂端直上雲霄見證了她靈魂的存在看上去，她不被任何單一的繩索束縛只被無數愛和思想的絲繩牽動沿著指南針方向，聯系萬物在夏日變換無常的微風中只有受到些微的阻礙時她才意識到一絲的牽伴。A transfer model is established, which can be used to study the interaction between the land surface physical processes of inhomogeneous region and the structure of atmosphere boundary - layer over urban and rural terrains. the model has simulated surface heat flux, surface temperature, temperature profiles, height of mixture layer and so on. and the differences between urban area, suburban area and rural area have been compared. this model mainly depends on the parameters below : surface albedo, surface roughness coefficient, moisture available coefficient of soil, thermal capacity and thermal diffusion coefficient of errain, cloudage. the result shows that this model can simulate the structure and eigenvalues of atmosphere boundary layer and their changes in a day. parameters used in this model aim at beijing city, and the time is at the beginning of september. to other cities, or other time, the parameters should be adjusted accordingly. in addition, being adjusted, the model can also be used for other homogeneous and inhomogeneous terrains
模式主要依賴于以下參數和物理量：地面反照率下墊面粗糙度土壤的可含水量下墊面的熱容量和熱擴散系數雲量等參數。結果表明，本模式能合理地模擬不同地表熱量平衡地表氣溫混合層高度湍流交換系數湍流動能位溫廓線等，以及它們的日變化。該模式所取參數主要針對北京市，時間為九月初，對于其他城市，參數應作相應的調整。The numerical results indicate that the deformation within the solid inner core is very small. however, in the fluid outer core, the changes of the displacement with relatively low spherical harmonic degree ( n < 10 ) is very complicated via the radius, due to the resonance near the eigenfrequenies of the core long - period oscillations. while the spherical harmonic degree of the loading is larger than 10, the deformation and the gravitational perturbation in the core are very small, and the earth ' s deformation response is dominantly represented as the radial displacement in the elastic mantle
研究了地球在日月引潮力和表面負荷作用下的形變特徵，數值計算結果表明，在固體內核中的形變很小，由於在長周期核模本徵頻率附近的共振，液核中低階（ n 10 ）位移隨半徑的變化非常復雜，當負荷階數超過10時，地核中的形變和擾動位都很小，地球的響應主要表現為彈性地幔中的徑向位移，且隨深度增加急劇減弱，地表負荷love數與信號頻率的依賴關系很弱，給出了體潮love數計算的一種有效的近似處理方案。The structures and dynamic changes of the artifical sand - fixing vegetation were studied based on the follow views : components of vegetation community, plant diversity, life - forms of vegetation, trends of plant growth, characteristics of the vertical and horizontal structure of vegetation, relationship between the vegetation community and environment ( including soil moisture temperature etc. ), relationship between the vegetation community and characteristics of plant physiological activities. some results were showed as follow : 1. components, diversity and life style of artificial vegetation in shapotou region the marked changes of artificial vegetation have taken place during more than 40 years, since the establishment of sand - fixing vegetation
本文以騰格里沙漠東南緣寧夏中衛縣沙坡頭地區人工固沙植被作為研究對象，採用傳統生態學的野外調查方法，從植被群落的組成、多樣性、生活型、群落生長動態、垂直結構特徵、水平結構特徵、群落結構與周圍環境（土壤含水量、溫度）相互關系及其與植物自身生理生態適應特徵關系等多個角度研究了人工植被群落的結構及其動態變化，取得了如下研究結果： 1 、植被群落組成、多樣性及生活型：沙坡頭地區人工植被經過近50年的演變，從流動沙丘到固定沙地，沙地植被的動態變化經歷了從人工植被到人工?自然植被的轉變，從人工植被建立初期的少數幾種引種植物到現有30多種植物，隨著固定沙地時間的延長，植物種類日趨豐富，並且人工植被在15 25年、 40 50年兩個階段，物種的周轉速率最大，即群落結構變化最大。The system is able to efficiently increase temperature and meet crop requirement of temperature for yield. in researching and designing solar energy conserving system in soil for active greenhouse, it adopts instrument of rhlog, tests temperature of six layers to soil temperature, and draws various curve of temperature. it shows the system can efficiency increase soil temperature and reduces change range of temperature in greenhouse in wintertime
在研究和設計主動式溫室太陽能地下蓄熱系統中，採用溫度自記儀器，測試了室溫及土壤中六個不同深度的溫度數據，繪制了相關溫度變化曲線，該曲線表明了主動式溫室太陽能地下蓄熱系統能有效提高冬季溫室土壤的溫度，並且減小了日溫變化幅度。Making use of the time series exhibitions of the fluctuation - rate datum, we make our study for the following two purposes : one is to observe whether the preannouncing companies " temporal - condition variance of the series of the return rate conforms to the demand of sta bility ; the other is to decide whether the preannouncing companies " stocks have asymmetrical - information adjustment, this is to say, to decide how the companies response to good or bad news
為了進一步檢驗盈餘預告新規則實施效果，我們考慮從波動性入手對股票市場的穩定性進行系統分析。我們嘗試利用波動率數值的時間序列表現進行研究，力圖了解：預告公司股票日收益率序列的時變條件方差是否滿足穩定性要求。預告公司股票是否存在信息非對稱性調整現象，即對利好利空消息分別做出何種反應。Through examining these implications empirically, we find that : ( 1 ) price limits may destroy the co - integration of shanghai stock index and its volume ; ( 2 ) in the short rum, price limits increase the volatility of china securities market, but in the long run, stock market volatility trends down ; ( 3 ) under the limit up and down, it increases sharply firstly and then decreases step by step for the coefficient of variation of the day returns series in china securities market
通過實證檢驗得出如下結論： （ 1 ）實行漲跌停板制度回破壞上證指數與成交量的協整關系； （ 2 ）在短期內會使我國大市指數日收益率的波動增大，但在長期里波動率趨于下降； （ 3 ）實行漲跌停板制度之後，我國證券市場大市指數日收益率的變差具有先增后減的是趨勢。To make it, the only method is that we put up a long term monitoring system about cave and learn about the number and rate of entering of human being. after observing and analyzing the data, we can discover the regulation and the " entropy " which leads to the variation of environment. the management and protection of karst caves for tourism is a long - term and meticulous work, which entails a great deal of data - collection as well as research and needs the closely joint effort of the explorers, tourists and scientists studying these caves
要做到這一點唯一的辦法就是對洞穴環境進行長期的監測，結合旅客的進洞人數和頻率，進行動態觀測，然後對這些觀測資料進行分析對比，找出規律性的東西，找出環境變異的「嫡」值信息系統是一個集成的系統，其目的是對組織的業務數據進行採集、處理和交換，以支持和改善組織的日常業務運作，滿足管理人員解決問題和制定決策的各種信息要求。Motion control is a comprehensive subject. modern ac drive is a important embranchment in the field of motion control. however, it is difficult to rea1ize high - performance ac drive systems because induction motors are a kind of strongly - coupled nonlinear system with many variables and the torque is not easy to control. with vector control technology decoupling and torque control of ac motor are solved. the basic idea of vector control is that three - phase system is equiva1ent to two - phase system by coordinate transformation and it realizes the decoupling between field current and torque current of the stator in order to control the flux and current respectively, thus induction motor can be considered dc motor and high performance is achieved easily. with the progress of electric and electronic technology and the development of computer, high - integrated special modules and high - precision digital signal processor ( dsp ) are applied to ac drive so that vector control has been developed rapidly
但是高性能的交流調速系統實現很困難，這是因為交流電機是多變量、強耦合的非線性系統，不易實現高性能轉矩控制。矢量控制技術則解決了交流電機解耦與轉矩控制問題，其基本思路? ?應用坐標變換將三相等效為二相，實現定子勵磁電流分量與轉矩電流分量之間的解耦，達到對交流電機磁鏈與電流分別控制的目的，交流電機等效為直流電機實現高性能調速。隨著電力電子技術的進步，計算機技術飛躍發展，高度集成的專用模塊和高精度的數字信號處理器應用於交流傳動系統中，促進矢量控制迅猛發展，日趨成熟。With dramatic advance and wide application of the internet and information systems, we can easily attain large quantities of data that is also in rapid increment daily. thereby it becomes impractical to handle these data manually. we wish that computers can automatically process these data and extract potentially useful knowledge from them to help us arrange managements and make decisions
隨著網際網路和信息系統的迅猛發展和廣泛應用，人們可以輕易地獲得海量的數據，並且這些數據還在日益不斷地增長中，對這樣的數據仍然採用傳統的人工處理方法變得不切實際，於是希望計算機能夠自動地幫助我們處理這些海量的數據，並提取出隱含的有價值的知識，輔助管理和決策，這就需要研究者對機器學習，特別是數據庫知識發現作更加深入和廣泛的研究。Since 1990s, e - data exchange, e - funds transfer and security certificate has been maturely step by step, especially the popularization of internet and e - commerce. the current business structure and distribution system will be changed and become the potential and active trading carrier in 21 century. e - commerce changes the traditional commodity trading concept and make the traditional taxation collection faced the new challenges
當前，以國際網際網路為媒介進行的商務活動正在全球范圍內興起， 20世紀九十年代以來，伴隨著電子數據交換，電子資金轉帳和安全認證等相關技術的日益成熟，特別是網際網路的普及，電子商務發展日益迅猛，全球電子商務即將改變現有的商業形態及其流通體系，將會成為21世紀最具潛力和活力的貿易載體，改變了傳統的實物貿易觀念，使得傳統的稅收征管面臨著新的挑戰。Previously, all information of substation automation system was sent to the control center. the control center only cares daily operation and handles fault, but does n ' t do the work such as equipment diagnoses and protective operation analysis
以前，牽引變電所自動化系統將保護信息和錄波信息全部送往調度中心，但調度中心只關心日常操作和事故處理，而不用錄波數據和其它信息進行保護動作行為分析和設備診斷之類的工作。According to the characteristic of nine - area diagram of substation vol / var coordinated control, this system gives the defination of fuzzy sets and the degree of membership of input / output variables, and designs corresponding control rules. the results of simulation demonstrate the system can satisfy the constrains of the day - adjusting times of the switching of on - load transformer and paralleled compensation capacitors, and ensure voltage quality, reactive power basical balance. considering the var requirement in different load time period and the control demand in load saltation, a improved control scheme is provided. the results of simulation show the improved scheme can meet the demand of vol / var in different load time period, protect the wrong operation when either voltage or reactive power appears saltation, and decrease the times of regulation of the switching of on - load transformer and paralleled compensation capacitors finally, a background software module of substation vol / var coordinated control is designed, based on the supervisory control and data acquisition system of substation
模擬結果證明該系統能在各種負荷條件下確保電壓合格和無功基本平衡，且能滿足變電站對有載調壓變壓器分接頭日調節次數和並聯補償電容器組的日投切次數的限制。通過考慮不同負荷時段對無功功率的需求和負荷突變情況下的控制要求，對上述模糊控制策略進行了改進，模擬結果證明改進后的控制策略能滿足不同負荷時段對電壓和無功的要求、抑制電壓或無功突變情況下的誤動作，且有效地減少了有載調壓變壓器分接頭和並聯補償電容器組的調節次數。最後基於變電站scada系統設計了一后臺電壓無功綜合控制軟體模塊。Wide plus ak series intelligent pressure transmitter which is universal intelligent series transmitter, it introduced advanced production technology from america and japan adopts the world leading technique, pass through strict quality control. this kind of transmitter is searched and developed independently by our company that is pressure detect transmit unit in the industrial automation control system. it measures fluid pressure in the industry process and converts it into 420 ma dc signal output ; at the same time, it may be remote parameter setup, remote control, self - diagnosis by field hart protocol
Wideplus - ak系列智能壓力變送器是引進美國和日本的先進生產工藝，採用世界領先技術，經過嚴格的品質管理，由我公司自行研製和開發的通用智能型系列變送器，是工業自動化控制系統的壓力檢測變送單元，它測量工業過程流體壓力，將其轉化成4ma 20ma dc信號輸出，同時通過現場hart協議可進行遠程參數設定遠程控制自診斷等功能。Ak series intelligent pressure transmitter which is universal intelligent series transmitter, it introduced advanced production technology from america and japan adopts the world leading technique, pass through strict quality control. this kind of transmitter is searched and developed independently by our company that is pressure detect transmit unit in the industrial automation control system. it measures fluid pressure in the industry process and converts it into 420 ma dc signal output ; at the same time, it may be remote parameter setup, remote control, self - diagnosis by field hart protocol
是引進美國和日本的先進生產工藝，採用世界領先技術，經過嚴格的品質管理，由我公司自行研製和開發的通用智能型系列變送器，是工業自動化控制系統的壓力檢測變送單元，它測量工業過程流體壓力，將其轉化成4ma 20ma dc信號輸出，同時通過現場hart協議可進行遠程參數設定遠程控制自診斷等功能。The rainstorm event in 15 apr i i 2002 in south shandong was a typical meso - scale weather process, but it was misforecasted by weather numerical - model ( t213 ) and operational weather service
本文藉助于mm5v3 . 6模式系統，對2002年4月15日發生在魯南的大暴雨天氣的發展演變過程進行了數值模擬和動力分析。Along with the advancement of technology, human are changing all aspects of environment at unprecedented speed the change of the utilizing land resource make the style of utilizing land resource change with each passing day for the land manager, as the traditional mode of manage can not adapt the change of utilizing land resource, they need a sort of land resource management information system which can update graph and data at real timeo the appearance and development of " 3s " ( remote sensing globe position system geography information system ) technology improve the change from traditional map to digital map, and offer the platform on which the land resource management information system can be developed which can satisfy the manager ' s requirement, and make it possible that develop the land resource management information system by the manner of system integration the article set forth the method and technology of developing the land resource management information system from the aspects of the manner of development the instruments of integrated development the design of system the data ' s organization the technology of integrated development
隨著科學技術進步的速度越來越快，人類正以空前的速度改變著自然環境及其各個方面，人類對土地資源的利用也發生著日新月異的變化，使得土地資源的利用類型隨時隨地發生改變，對于土地管理者來說，傳統的管理模式已經不能夠適應當前土地利用的變化速度，急需一種能夠實時更新圖形和數據的土地資源管理信息系統。 「 3s 」 （遙感技術、全球定位系統、地理信息系統）技術的出現和發展，推動了傳統地圖向動態的數字化現代地圖的變革，為建立滿足當代土地管理者需求的土地資源管理信息系統提供了可能的平臺，使得採用系統集成方式進行土地資源管理信息系統開發成為可能。本文主要從開發方式的選擇、集成開發工具、系統設計、數據組織、集成開發技術等五個方面闡述開發土地資源管理信息系統的方法及相關技術。Like reiserfs, xfs uses a logical journal ; that is, it does not journal literal filesystem blocks like ext3, and instead uses an efficient on - disk format to log metadata changes
象reiserfs一樣， xfs使用邏輯日誌；即，它不象ext3那樣將文字文件系統塊記錄到日誌，而是使用一種高效的磁盤格式來記錄元數據的變動。分享友人