重量基位 的英文怎麼說
中文拼音 [zhòngliángjīwèi]
重量基位
英文
weight basis-
Form. taxus chinensis var. mairei is protecting plant in the first class, which is a precious and endangering plant in china in this paper, the quantitative characterics of form. taxus chinensis vsr. mairei population including age structure, spatial distribution pattern, growth dynamics of tree basal area, niche characterics, fractal dimension and competition between specises were studied using methods of mathematics ecology from the angle of population ecology of form. taxus chinensis var. mairei, then the prent state and the endangering causes were analysed. this research offers gist to protecting and enlarging the crude resourse of form. taxus chinensis vsr. mairei population, afforesting plantation and sustainable utilize for us
本文從南方紅豆杉種群生態學的角度、主要應用數學生態學的方法探討南方紅豆杉種群的數量特徵，包括南方紅豆杉種群年齡結構、種群空間格局（探討分佈格局動態規律與生境相互關系） 、不同立地條件下種群優勢度增長趨勢、生態位寬度、生態位相似比例、生態位重疊、空間占據能力及種間競爭等，分析其目前現狀及瀕危原因，期望為南方紅豆杉野生資源的保護和擴大、營造人工林及可持續利用提供理論基礎，也為瀕危植物種群生態學的研究提供參考。The following are the main achievements : distributed network measurement and analysis infrastructure ( dnmai ), the cooperant result of all the researchers of our workgroup, is discussed in detail, and also the important status of the network intrusion detection and network vulnerability analysis in dnmai
研究成果如下：系統地介紹了本項目組全體成員共同創作的一種分散式網路測量與分析基礎架構dnmai （ distributednetworkmeasurementandanalysisinfrastructure ）及網路入侵檢測系統和網路脆弱性分析系統在其中的重要地位和作用。In this paper, the finite - element numerical analysis calculation is applied to the foundation of high - rise and multi - floor building and the evolvement law of stress and displacement of tunnel used by urban traffic to explore the mutual influence between the wall rock of underground space and high - rise building foundation, taking account of the specific construction situation in the " sanmu garden " project in dadukou district in chongqing, from the perspective of underground space static - force structure stability analysis to open a underground tunnel with 6m in span and 7. 5m in height for track traffic 20m below the surface. this paper, taking considerations of three different states, i. e. the natural state without any artificial interference, the state of high - rise buildings on the surface, and the underground tunnel state with excavation for track traffic, and four plane lines and four vertical lines, analyzes and studies the distributing law of stress and displacement of calculation section from the following aspects : ( 1 ) the main stress vectorgraph, displacement distribution graph ( ux, uy ) and chromatogram graph of stress isoline ( 1, 2, xy ) of section under different states ; ( 2 ) the contrastive distribution curve of stress ( 1, 2, xy ) of different plane and vertical lines under the same state ; ( 3 ) the contrastive distribution curve of stress ( 1, 2, xy ) of the same plane and vertical lines under different states, wishing to provide references for underground space utilization and project designing and construction of the tunnel under high - rise buildings in the future
本文結合重慶市大渡口區「三木花園」開發建設項目，從地下空間靜力結構穩定性分析角度出發，針對在該項目中涉及的高層和多層建築物以及在其地下20米處開挖了一個用於軌道交通的跨度6米，高7 . 5米的地下隧道這一具體工程情況，採用2d - 3d -有限元結構分析程序對高層與多層建築物的地基基礎及其與城市軌道交通使用的地下隧道圍巖的應力與位移演變規律進行了有限元數值分析計算，探索了地下空間圍巖與高層或多層建築物地基基礎之間的相互影響，通過考慮未受到任何人為擾動影響的天然狀態、地表存在多層或高層建築物狀態和地下開挖用於軌道交通的地下隧道狀態等三種不同狀態以及4個水平剖線和4個垂直剖線等不同情況，從以下幾個方面具體分析研究了計算斷面的應力與位移分佈規律： （ 1 ）在各種不同狀態下計算斷面的主應力矢量圖、位移分布圖（ ux 、 uy ）以及應力等值線色譜圖（ _ 1 、 _ 2 、 _ （ xy ） ）等； （ 2 ）相同狀態下不同水平與垂直剖線的應力_ 1 、 _ 2和_ （ xy ）對比分佈曲線； （ 3 ）不同狀態下相同水平或垂直剖線的應力_ 1 、 _ 2和_ （ xy ）的對比分佈曲線等，為今後在對地下空間的開發利用以及在高層建築物地下開挖硐室時的工程設計和工程施工提供參考依據。The modern technology give a chance for the pattern of transmitting knowledge with network, the course based on network have opened up it ' s way in china, our pursuer paid more attention to the mode, but in america, pursuer have studied the more width aspect, thereinto the investigation and design of the information in the course based on network is very important, for the design of the information decide the pattern how the student receive the information, which will effect the way of knowledge understanding and memory, and the way is related to the study pattern, so the design of the information in the course based on network is very important to the efficiency and effect. so the core of the paper is the investigation and design of the information in the course. i have the entropy from the information science as the analyse tool to analyse the information, these work tell us the efficient pattern to transmit information, based on the result, i design the net page, of course, study theory and the character of the net itself are also the factors i employ for design a good net page. then, links and navigation is constituted for students adapt to the course based on network
當今技術的發展給知識以網路為媒介來傳播的學習方式帶來前所未有的機遇，網路課程在國內迅速開展起來，但是國內研究者的注意力主要集中在對網路課程模式的探索上，放眼國外，他們的研究觸角已經涉及到網路課程比較細致的方面，尤其是對網路課程信息的研究構成了國外網路課程研究中的比較重要的一個方面，而網路課程中信息的設計是重要的，因為信息的組織設計是為了接受者能對信息進行有效的信息加工，信息的呈現模式影響著學習者對知識的理解和記憶方式，進而決定了學習者的學習模式，因此網路信息的設計在網路課程傳遞的效率和效果中就佔有很重要的位置。基於這個觀念，本文把網路信息的組織設計作為研究的重點，引入了信息科學作為研究的主要工具對網路中的信息作以量化分析研究，主要應用了信息科學中信息熵的公式進行推導，得到學習內容信息組織的基本模式，並充分利用網路自身特性和學習理論對知識信息進行細致的設計，此外還對鏈接和導航信息進行了設計，在網路課程的適應性方面作出了努力，把交互信息與輔助學習信息的分析設計與應用和對網路頁面信息的總體調節優化作為主體信息設計部分的補充，最終形成了網路信息組織設計的方案，力求創設一個能夠有效傳遞知識信息，減少網路自身弊病，並帶有一定適應性的網路學習環境，也使更多的網路課程的設計者關注網路信息這個因素。In this thesis, we demonstrate the study of si - based light emitting materials and its importance in si - based photonics integration. we discussed mainly the gain, differential gain, threshold current of si - based quantum - dot laser and the dependence of threshold current on temperature from discrete energy level of three - dimension confined quantum - dot and state density distribution of 5 - function
本文闡述了si基光發射材料的研究進展及它在硅基光電子集成中的重要地位，從三維受限量子點的分立能級和函數狀的態密度分佈入手，著重討論了si基量子點激光器的增益、微分增益、閾值電流及閾值電流的溫度特性。But the christian knight, well acquainted with the customs of eastern warriors, did not mean to exhaust his good horse by any unnecessary exertion ; and, on the contrary, made a dead halt, confident that if the enemy advanced to the actual shock, his own weight, and that of his powerful charger, would give him sufficient advantage, without the additional momentum of rapid motion
可是這位基督教騎士完全熟悉東方戰士的習慣，並不想用任何不必要的動作使他的好馬過早疲憊，相反地他立刻把馬停住，自信如果敵人突擊過來，他自己的體重和他的強壯的戰馬的重量都會使他佔到優勢，而無需快速移動的沖力。Comparing and analyzing the synchronous control strategy, which brings up the new method to control the double un - symmetry jars proceed synchronously with the combination of proportional valve and servo valve, which forms closed loop control ; basing on the above methods, models are made to get mathematics models of position control system and to analyze system model theoretically by using pid controller, we can realize regulating parameters, minimizing synchronous errors and enhancing the dynamic performances ; the simulink tool box in matlab software is used to imitate the system according to the model, which not only makes the result visual and easy to adjust the parameters in interactive way but also lets us understand the effects of different parameters and optimizes the dynamic properties. the theory of plc control in dshp is discussed after advanced understanding of the system movements. hardware design and general regulation are given on the base of siemens company products s7 - 200 plc
本文根據大量的國內外文獻，對研配液壓機的工作原理及設計結構進行了簡介；對位置同步的控制方法進行了比較分析，提出比例閥和伺服閥復合控制的閉環結構來對非對稱雙缸進行同步控制電液比例同步控制方案；在此基礎上著重對比例閥控非對稱缸建模，最後得到位置控制系統的總體數學模型，從理論上對同步系統動態特性進行了分析，並用pid控制器進行參數整定，減小雙缸同步誤差、提高系統的動態響應性能；其中控制性能的分析藉助于matlab軟體中的simulink工具箱，由已建立的數學模型形成模擬模型，得到可視化的模擬結果，從而利於交互方式下調整參數，了解不同的參數對系統的影響，優化同步系統的動態性能；在深入了解系統的動作特性后，對plc控制研配液壓機的原理進行了探討，針對siemens公司s7 ? 200型plc給出了硬體設計的總體規劃，編制出研配液壓機動作控製程序，在編程中著重研究位移傳感器與plc的通訊、雙缸同步運行的pid控制在plc上的實現及bcd碼撥盤輸入程序的植入問題。On the basic of a great of literature reading and research on safety of side impact of the car, according to requirement of ece r95, applied madymo6. 2. 1 software, established simulation model of side impact of the car, researched the relationship between side rigidity of the car and passenger injury in side impact, which showed that during first impact the bigger side rigidity was, the more advantaged protection for the car and passenger in a definite range, and which drew a conclusion that the most serious part of passenger injury was pelvis during first impact. then detailed the substructure model by defining bodies, joints, contact types and contact characteristic, researched some improvement approach for side safety of the car, and then analyses a particular case, that was to say to fix vehicle door bar fender on between inner and outer plate of the vehicle door, analyzed the influence of passenger injury when the bar fender was fixed on different position, the result showed that the passenger injury was less when the bar fender was fixed on the height of vehicle door decorate bar. finally, a set of tests were performed, contrasting the simulation result with the test, analyzed the influence of the side rigidity of the car to passenger injury, which showed the test
本文在對汽車的側面碰撞安全性進行大量文獻閱讀和研究的基礎上，按照歐洲ecer95側面碰撞乘員保護法規的要求，應用多剛體動力學軟體madymo6 . 2 . 1 ，建立了汽車的側面碰撞模擬模型，研究了汽車的側面剛性對乘員損傷的影響，結果表明在「一次碰撞」中，在一定范圍內汽車側面剛性越大，越有利於汽車和乘員的保護，同時得出結論，即在「一次碰撞」過程中人體損傷最嚴重的部位是骨盆;然後通過定義各剛體、鉸鏈、接觸類型以及接觸特性，對該模型進行子結構細化工作，研究了加強汽車側面安全性的若干改進措施，並進行了一個特例分析，即在此模型的車門內外板之間安裝了車門防撞桿，分析了當車門防撞桿安裝在不同位置時對乘員損傷的影響，結果表明防撞桿位於車門裝飾條的高度時，對乘員的損傷較小;最後進行了一組側面碰撞試驗，通過試驗和模擬結果的對比，分析汽車的側面剛性對乘員損傷的影響，表明試驗和模擬結果是一致的，從而證明了模擬模型的有效性以及模擬結果的正確性。From the viewpoint of method, the first step is to determine the available investment options or opportunity set of the locations of crude oil tankers zone involving some six representative factors such as the unit engineering expense, unit operating cost, constructing period, the location land features, unit constructing engineering amount, unit land opportunity cost. these factors stem from the economic, societal and environmental regulations and rules. the second step is to specify how to choose among these available options
從方法上來看，首先確定以單位工程造價、單位運行成本、建設期、地形特徵、單位土建工程量、單位土地機會成本等六個綜合經濟、社會及環境指標為代表的原油罐區方案決策目標集，其次制定桃園、西山、填海三個決策待選方案，然後建立基於優先關系的相對優屬度矩陣及各影響因素的權重集，從而進行模糊動態規劃評價，最後優選出最佳的桃園方案。From the information available for the preparation to be assayed ( the “ unknown ” ), assign to it an assumed potency per unit weight or volume, and on this assumption prepare on the day of the assay a stock solution and test dilution as specified for each antibiotic but with the same final diluent as used for the usp reference standard. the assay with 5levels of the standard requires only one level of the unknown at a concentration assumed equal to the median level of the standard
根據有效的信息制備試驗溶液，指定一個假定的每單位重量的效價或者體積，然後在假設的基礎制備當天儲備液試驗和稀釋溶液作為每一種抗生素指定的效價，但是當使用相同usp參考標準品的最終稀釋液時，試驗應使用平行5的標準要求僅有一份未知的做為濃度等同於中部的標準。Kiev, ukraine - - the former heavyweight champion climbed onto the back of a pickup truck as the crowd roared his name
基輔，烏克蘭? ?隨著人群高呼著這位前重量級冠軍韋塔利?克里奇科的名字，他爬上了敞蓬小型載貨卡車的后箱。This paper established optimization mathematical models with the structural reliability constraints based on the structural reliability analysis. in this paper, truss and beam structures are studied as the research objects and the structural elements cross sectional areas as the design variables
在結構可靠性分析的基礎上，構建了以桿、梁截面積為設計變量，使結構重量極小化為目標函數，同時具有應力和位移可靠性約束的優化設計數學模型。Based on finite element and general reliability analysis, the structural optimization design model based on probability is constructed, which refers the cross - section areas as the design variables, refers the minimum of the frame ’ s weight as the object with the reliability restricts of stress and displacement
在結構廣義可靠性分析的基礎上，構建了以桿截面積為設計變量，使結構重量極小化為目標函數，同時具有應力和位移廣義可靠性約束的優化設計數學模型，並將其應用於天線結構的優化設計之中。Economic efficiency : the annually sales income is 395. 35 million rmb, and profit is 125. 59 million rmb. the repayment period of capital cost is 5 years
醋酸、醋酐為化工的基本原料，在化工行業占重要地位，應用領域廣泛，國際、國內市場需求量大，銷路看好。年銷售收入39535萬元，利稅12559萬元。The basic task of the current college manageme is, relocating the function of higher education, rebuilding the internal power attribution and power system, recognizing the contradictions of valuation on higher education and rethinking the best way between the speed of local college development and its quality
高校管理體制改革的基本任務是，重新定位高校的功能，重新建構高校內部權力分配與權力體系，重新認識高校教育績效評價過程中的各種矛盾，重新探索地方院校發展速度與建設質量間的最佳模式。. status of ega system in the governments of the prefectural cities besides keeping identical politically with central government, the major function of the governments of the prefectural cities is to govern the economic and social issues in order to promote general development of local society and economy, then to consolidate political foundation of the party and the country resulting in the implementation of central policies and administrative function
把地市級政府電子政務系統建設放在相對重要的位置，加強其系統建設，不僅有助於深入促進我國政府職能向服務型轉變，而且有助於充分發揮基層政府電子政務系統的服務功能，真正提高政府為民服務的質量與效率。The optimal model of truss structure is established, in which the cross sectional areas of bar are taken as design variables, the structure weight is taken as objective function. in the process, the reliability of structural displacement and bar stress and the fundamental frequency are taken as constraint functions. from the engineering practice, all the reliability constraints, which are implicit generally with the design variables, are equalized and transferred to the conventional explicit constraints
本文將主要考慮桁架結構的優化問題，首先建立數學模型，即以桁架的橫截面積為設計變量、以重量最小為優化目標，位移、應力等可靠性及基頻為約束條件；最後，從工程實際出發，對結構系統的可靠性隱形約束進行等價顯化處理，使之轉化為常規的橫截面積優化問題。The mold manufacture and application, which is very important for many fields of the backbone industries, indicates the national industrial level
模具的生產和使用，在基礎工業中佔有重要地位，它是衡量一個國家工業水平的標志。Manufacturing is on the foundation, one state modernization rest up on mightiness reliable advance manufacturing foundation, is " reliable modernization, secure modernization " ; of economic development possess. it is one importance field that set obtain employment incompatible ; it was not only high and new technology " s bearer, but its power also. it is important attribute and object in our country ' s industrializatoon, it is also driving force in urbanized. manufacturing production mode is confronted with graveness change, it is confronted with from " ford mode " transiting to " flexible mode ", from extensive management transiting to intensive farming, it is still confronted with advanced technology and powerful capital competition abroad after intered into wto ; it is backbone industries and dominant strength and primary revenue source industry in zhejiang economic development, actually zhejiang is becoming manufactured product critical industry export depot of inland, zhejiang manufacturing possess unique industrial organize form, created unique institution and culture, it has become theoretical investigation prototype of inland. this article handles active branch of modern economics - industrial economics, to investigation the importance industry in this representative region, in the hope of obtain beneficial research findings
製造業在經濟發展中具有重要地位，它是一個國家經濟發展的基石，也是增強國家競爭力的基礎，一個國家現代化建立在強大可靠的先進製造業基礎上，是「可靠的現代化、安全的現代化」 ；製造業是解決就業矛盾的一個重要領域；製造業不僅是高新技術的載體，而且是高新技術發展的動力。在我國製造業現代化是工業化的重要標志和目標，也是城市化的推動力。製造業的生產模式面臨重大變革，面臨從「福特模式」向「柔性模式」轉變，從粗放經營向集約經營轉變，還面臨入世后國外先進技術和雄厚資本的競爭；製造業在浙江是支柱產業，是浙江經濟發展的主導力量，如今浙江已成為國內重要的工業製成品出口基地、主要的稅收來源產業，浙江製造業還具有獨特的產業組織形態，創造了獨特的制度與文化，成為國內理論研究的典型樣板。4, the study on the quality management of mechanical and electrical engineering project and the employer ' s claim because of the quality problems is carried out. on the basis of the system efficiency, the quantitative analysis model which can be used to evaluate the engineering quality in any period of project is set up. furthermore, the claim model and the calculating steps of claim amount are brought up
4 、對機電工程項目質量管理和因質量問題引起的業主索賠進行了系統的研究，建立了能在工程進行的任何階段對工程質量情況進行評價的基於系統效能的定量分析模型，並在此基礎上得到了索賠模型和進行索賠定量分析的計算步驟；鑒于工程設備在大型機電工程項目中的重要地位，文章專門對工程設備的索賠進行了探討，獨立提出了定性的分析方法和定量計算的數學模型，並用實例進行了說明。分享友人