最低應存數 的英文怎麼說
中文拼音 [zuìdīyīngcúnshǔ]
最低應存數
英文
compensating balance-
Because of the unique issues in the networks, including mobility - induced disconnection, network partition, high out - of - order delivery ratios and channel errors, the congestion control and the error recovery in the network is challenging. in this environment, the interaction between tcp and mac layer protocols, the affection of route protocols on the performance of tcp and the particular congestion control and error recovery mechanism are first discussed. then a particular transport layer protocol scheme based on the non - feedback mechanism is presented, with emphasis on the analysis and simulation of the key parameter
文中主要討論了兩種不同網路結構中的無線tcp協議改進方案，其一在最後一跳為無線鏈路的網路環境中，針對基本tcp擁塞控制機制存在的缺陷，文中在現有解決方案的基礎上提出一綜合性的方案，其中包括無線鏈路的高誤碼率和連接斷開問題的解決，並重點對方案中出現的交叉層問題進行分析和模擬；其二，考慮的是分散式網路（ adhoc ） ，在文中較為詳細的分析了tcp和mac層機制間的相互作用、路由協議中造成tcp性能降低的因素、 adhoc網路中應採取的特殊擁塞控制和差錯恢復機制，在此基礎上提出了一種採用非反饋機制的解決方案，重點對方案中的關鍵參數進行分析和模擬，分析和模擬結果表明此機制可在很大程度上提高adhoc網路中tcp的性能。It is very important to estimate the basic parameters in helicopter preliminary design. neural network ( nn ) has the advantages in estimating accuracy and generalization over traditional methods. however, there are some difficulties in using nn, e. g., how to select a proper network structure and the number of hidden layers. in this paper, structure and connection weight of a three - layer nn are optimized by genetic algorithm, and the optimized network is applied to helicopter sizing. the proposed method can not only give an optimal nn structure and connection weight, but also reduce the prediction error and has the capability of self - learning when the latest data are available. furthermore, this method can be easily applied to helicopter design systems
在直升機初步設計階段估算其基本參數是很重要的.神經網路的通用性和精度比傳統的估算方法有更多的優勢，但是在應用神經網路時存在如何選擇合適的網路結構和隱層節點數目等一些困難.應用遺傳演算法優化三層神經網路結構和連接權重，並將優化得到的網路應用於直升機參數選擇中.該方法不但可以給出一個最優的神經網路結構和連接權重，而且降低了估算誤差，具有及時應用最新數據學習的能力.此外，該方法易於在直升機設計系統中得到應用The result of experimentation on coupling effect of water and fertilizers on spring corn in the three gorges reservoir area indicate that water stresslead the effect low of highness and lai, and the most effect is made in shooting stage ; it has a significant positive correlation between the yield of corn and biomass, and hasn ' t none significant positive correlation between the yield of corn and the weight of roots ; the coupling effect of water and n is significant, but the coupling effect of water and k is not significant, the maximum yield of corn condition fitting - water and medium n, corn absorbs n has a threshold value during the growth, and using superfluous n is able to prick up soil drought and crop drought ; water is the leading factor which effects the yield of corn, next is n and k
摘要三峽庫區春玉米盆栽水肥耦合試驗研究結果表明，水分脅迫導致玉米株高和葉面積指數降低，以拔節期受到影響最大；玉米產量與生物量呈顯著正相關關系，產量與根重無顯著正相關關系；水氮耦合效應顯著，適宜水分和中氮處理下玉米的產量最高，玉米生長發育對氮肥的吸收存在一定的閾值，過多施用氮肥會加劇土壤乾旱和作物乾旱，水和鉀耦合效應對玉米產量影響不顯著；水分是影響玉米產量的主導因素，其次是氮效應和鉀效應。The dynamic parameters of the asphalt concrete can be obtained through dynamic triaxial test, combined with the cunli chen ' s studying results, discovering that the dynamic stress - strain relationship obeys the hyperbolic model well, and t he maximum dynamic modulus edmax and the maximum shear modulus gdmax increasing along with the decreasing of the temperature and the increasing of consolidation ratio kc
通過振動三軸試驗獲得瀝青混凝土材料的動力參數，並結合西安理工大學陳存禮老師的研究成果。發現動應力與動應變的關系較好地符合雙曲線規律，最大動模量e _ （ dmax ）和最大剪切模量g _ （ dmax ）隨著溫度的降低、圍壓和固結比kc的增大而增大。The self - poisoning effects of chinese fir plantation are studied through the seed germination experiment with the extracts of organs, bulk soils and rhizosphere soil of different rotation plantations. the results are as follows : there are some poisonous substances inhibiting germination of chinese fir seeds in soils of chinese fir plantations. the inhibiting effect becomes stronger and stronger with increase of planting generations. extracts from the organs of chinese fir trees also have some inhibiting effects on seed ' s germination, but the effect of leaf is the strongest. lower concentration extracts of underground vegetation may be favorable to the seed ' s germination whereas the higher concentration will reverse the results. it indicates that the “ self - poisoning ” effects of chinese fir plantations might be one of the reasons for poor natural regeneration and soil degradation of chinese fir plantation
利用不同栽植代數杉木人工林根際土、非根際土及杉木各器官浸提液進行杉木種子發芽試驗，研究杉木人工林自毒作用，研究結果表明：杉木林根際土及非根際土中均存在抑制杉木種子萌發的物質，隨栽植代數增加抑制作用更趨明顯；杉木各器官浸提液對杉木種子萌發也有抑制作用，其中以杉木葉的抑制作用最為明顯，杉木林下常見植物對杉木種子發芽則表現為低促高抑效應，說明杉木人工林存在自毒作用，這可能是杉木連栽障礙的原因之一。The increase of quantity of blood vessel of the graft will decrease the quantity of ligament constitution. in order to preclud the course of the ischemic necrosis and revascularization of the graft, reserving the graft blood supply operation is very necessary. therefore we can draw conclusion that the patellar ligament contains blood vessels reconstruction of the anterior cruciate ligament is a feasible method at clinic
在韌帶的血管數量增多會明顯降低韌帶組織的數量，導致移植物強度的下降，為了消除移植后缺血壞死和再血管化過程，手術中最大可能的保留移植物的血供，保留了移植物的血液供應，手術后組織能夠存活，髕腱移植物的缺血壞死及再血管化過程可以減少到最低限度或者徹底避免。The content of styrene was found to be dependent on the investigated grafting conditions, of which the dose rate and monomer concentration were the major conditions, and the dependence of the initial rate of grafting on the dose rate and the monomer concentration was found to be of 0. 4286 and 1. 1662 orders, respectively. the results indicate that the grafting reaction is competitive and the copolymerization and the graft - copolymerization are existing at the same time. the grafting proceeds by the so - called front mechanism in which the grafting starts at the surface of the films and moves toward the middle of the film by successive diffusion of the styrene through the grafted layers
我們對輻射接枝反應中的各個因素如：單體濃度、輻射劑量率、輻射劑量以及反應時間進行了研究分析，結果表明：單體濃度和劑量率是反應的兩個主要影響因素，它們對反應速率的影響指數分別為1 . 1662和0 . 4269 ；反應的動力學方程為： rg k [ d ] ~ （ 0 . 4269 ） [ m ] ~ （ 1 . 1662 ） ；認為接枝反應是一競爭反應，單體的均聚反應和在聚合物上的接枝反應同時存在，單體濃度的高低決定著競爭反應的方向；輻射接枝反應是從聚合物表面開始的，隨著溶劑的溶脹和單體的擴散最後在整個膜體中形成接枝產物。Aimed at the current problem of pipeline layout optimization technique, the research of irrigation pipeline layout and pipe diameter optimization has been done, the gis ( geography information system ) and graph theory were first put forwarded to applyed to the design of low pressure pipeline irrigation project in the paper. with the support of gis, the minimal spanning tree theory of graph theory and 120 project theory can be applied to irrigation pipeline ' s layout optimization. at the aspect of pipe diameter optimization, simplicial method and interior - point method are been used in solve liner optimization model of pipe diameter to reach minimum project cost or a nnual working cost of low pressure pipeline irrigation
本文主要針對當前南方地區低壓管道輸水灌溉規劃設計中存在的技術難點，開發研究先進實用的樹狀低壓輸水灌溉管網計算機輔助設計系統。首次提出了將gis （地理信息系統）和圖論技術應用於低壓管道輸水灌溉規劃設計及灌溉管網優化中，在gis支持環境下，應用圖論中的最小生成樹法和120規劃進行管道的最優化布置。建立以管道輸水灌溉系統的年折算費用最小為目標函數的管徑優化線性規劃模型，並將內點法應用於線性優化模型的求解。Firstly, analyzed the present problems of fed display quality such as luminance non - uniformity, grayscale loss and high power consumption on fed driving system. secondly, proposed new methods and thinking from circuit aspect for improving display quality of fed according to the matured digital image processing and fpga technologies. and such methods have been applied to the low work function printable 25 inch color vga fed. lastly, analyzed and evaluated the image quality of fed processed
首先，針對fed顯示器現存的亮度不均勻、灰度失真等質量缺陷和fed驅動系統功耗較高的問題進行了分析討論和歸納總結;其次，根據成熟的數字圖像處理方法和fpga技術，結合fed顯示屏的自身特性，提出通過電路設計來改善、提高fed圖像顯示質量的新方法與新思路;然後將其應用於低逸出功印刷型25英寸vga級彩色fed驅動系統中;最後，對經過圖像處理的fed演示樣機的圖像質量進行了分析與評價。It was also found that the number of active atoms has relation with the length of border when the growth rate was low, and the number was largest as the length was shortest
並且發現，在低生長速率情況下，邊界長度與可活動原子數間存在對應的周期性振蕩關系。當邊界長度最小時，可活動原子數為最大;反之，可活動原子數為最小。In addition the h. kantz method is applied to analyze the time series of the motor current, the maximal lyapunov exponent calculation is realized, the criterion for the motor chaos is brought forward, the existence of chaotic phenomenon in the induction motor is verified by the characteristic exponents, which proves theoretically that the chaotic movement is one of the reasons that results in the low frequency oscillation of the induction motor system
應用h . kantz方法對電機電流信號的時間序列分析，實現了最大李亞普諾夫指數的具體演算法，提出了電機出現混沌運動的判定根據，通過特徵指數驗證了異步電動機現象的存在，從理論上說明混沌運動是異步電動機系統產生低頻振蕩的原因之一。第三部分深入研究了系統低頻振蕩的主要影響因素。In the thesis, compatible data storage fashion and data structure for a large - scale 3d scene is discussed firstly. then the process technique for dem, spatial object geometry data, texture image data and scene metadata are discussed in turn. finally, a new nested index, scene pyramid + sub scene regular dividing quad - tree is brought forward, which consumes less memory and reduces the complexity of spatial data query
本文首先確定了適用於大規模三維場景可視化的數據結構和存儲方式；然後分別針對dem數據、地物模型數據、紋理影像數據及場景元數據論述了分割與lod處理的方法；最後給出場景金字塔與子場景規則分割四叉樹兩套索引的建立以及具體應用策略，該索引機制減少了內存消耗，降低了數據查找的復雜性。Abstract : it is very important to estimate the basic parameters in helicopter preliminary design. neural network ( nn ) has the advantages in estimating accuracy and generalization over traditional methods. however, there are some difficulties in using nn, e. g., how to select a proper network structure and the number of hidden layers. in this paper, structure and connection weight of a three - layer nn are optimized by genetic algorithm, and the optimized network is applied to helicopter sizing. the proposed method can not only give an optimal nn structure and connection weight, but also reduce the prediction error and has the capability of self - learning when the latest data are available. furthermore, this method can be easily applied to helicopter design systems
文摘:在直升機初步設計階段估算其基本參數是很重要的.神經網路的通用性和精度比傳統的估算方法有更多的優勢，但是在應用神經網路時存在如何選擇合適的網路結構和隱層節點數目等一些困難.應用遺傳演算法優化三層神經網路結構和連接權重，並將優化得到的網路應用於直升機參數選擇中.該方法不但可以給出一個最優的神經網路結構和連接權重，而且降低了估算誤差，具有及時應用最新數據學習的能力.此外，該方法易於在直升機設計系統中得到應用The paper through to analyse the background, meaning and necessity for implement bidding & tender of online architectural design, through to discript and compare with different mode of domestic and international of application for bidding & tender in network, to propose a unique opinion of solution system which is ndbs mode for bidding & tender of online architectural design, the mode is to submit the whole course of bidding & tender of online architectural design from planning for bid, information issue, pre - qualification, call for bid meeting, tender submit, tender evaluation and confirm the solution to sign the contract in internet. the paper through to structure a bidding platform ( bdb. cn ), to analyse the funcation procedure of bidding and tender system of online architectural design, from the sight of bid invitor, bidder and tender evaluated angle, to link them closely. the paper carry on system design to ndbs mode, input and outut, the information and keep them, safety and data stored, the paper combine with online architectural desigh wenzhou huameng building ( railway station road 1 - 2 massif ) as an example of ndbs mode finally, the result of study indicate, bidding and tender of online architectural design is not only feasible technically, the procedure of bidding and tender accord wigh the law, but also it is unanimous in traditional bidding way, this implement the scheme can improve working efficiency greatly, reduce the cost of bidding effictives, make it standard science further, to realize a pualitative leap in the building management level
論文通過對實施網上建築設計招標投標的背景、意義及必要性進行分析，通過對國內外不同模式招標投標網路應用的綜合敘述與比較，提出了具有獨特見解的系統的網上建築設計招標投標解決方案? ? ndbs模式，該模式是對建築設計招標投標全過程從招標準備、信息發布、資格預審、招標會議、標書遞交、評標決標到合同簽訂的網上解決方案，論文從構建網上招標平臺（ bdb . cn ）開始，對建築設計招標投標系統的功能流程進行分析，從招標人、投標人和評標人的角度出發，通過對其在整個招標投標活動流程在網際網路中的無縫連接，使得通過bdb . cn招標平臺，能夠達到建築設計招標投標各參與方的一網打盡。論文還對ndbs模式進行了系統設計，對輸入輸出、安全與數據加密和招標投標資料儲存進行設計，從技術的層面對該系統提出了解決的方案。論文最後還結合溫州華盟大廈工程（車站大道1 - 2 #地塊）的網上建築設計招標投標的實例，對ndbs模式進行了實證，研究結果表明，實施網上建築設計招標投標，不僅在技術上是成熟可行的，在工作流程上是符合法律法規的，與傳統的招標投標方式也是一致的，而且能夠大大提高工作效率，有效降低招標投標成本，使得招標投標能夠更加規范、科學，實現建設管理水平的一個質的飛躍。The definition, the essential, the orietation model and eleven kinds of functions of mes was dissertated in the article, the relation between mes and the plan layer and the control layer was deeply analysised, and the characteristic of mes in the industry application was researched in detail. after analysised the current production condition and the existent problem in jigang plate plant, the design of system frame, dadabase and function module have been studied, and the realization of it has been expounded. for solving the low efficiency in arranging the rolling plan by man, based on the traveling salesman problem and the pack problem about 0, 1, the mathematics model of the schedule of rolling plan was put forward, and the most near insert way was introduced to solve it, the result was satisfied. based on the practical demands of jigang plate plant combined the academic research of mes software, it has been realized the valid combination between the management of production scene and the upper management software in the dissertation
本文論述了mes的定義及其實質、 mes的定位模型和其十一項功能，深入分析它與計劃層和控制層的關系，並闡述了mes在行業應用中的特點。在分析濟鋼中厚板廠生產現狀及其存在的問題后，研究了系統的體系結構設計、數據庫設計和功能模塊設計，並對其實現進行了闡述。為了解決人工經驗編排軋製作業計劃問題的低效性，提出了基於旅行商問題和0 1背包問題的軋製作業計劃排序數學模型，並採用最近插入法進行求解，取得了滿意的效果。The core of scm is to optimize and combine enterprises " internal and external business procedures by realizing information sharing, data exchanging and coordination among the enterprises, such as manufacturers, suppliers, retail traders, retailers and final customers, in the supply chain. it realizes higher efficient production, distribution, sell and service activity on the whole and increases the profit of enterprises by ways of shortening the cycle of delivering goods, reducing the turnover stock and reducing the response time of customers
供應鏈管理的核心，是在生產商、供應商、分銷商、零售商和最終客戶之間，通過實現供應鏈環節中各企業的信息溝通、數據互換和協同工作，改造和整合企業的內部和外部業務流程，從而實現整體上更為高效的生產、分銷、銷售和服務活動，通過縮短交貨周期、降低周轉庫存、縮小客戶響應時間，增加企業的盈利能力。The main results are : supersonic region and subsonic region can co - exist in flow path simultaneously, subsonic flow is insignificance for engine performance ; total pressure of primary rocket should be decreased when mach number is increased. in the experimental aspect, some components of ejectorjet experimental system were improved, ejectorjet experiments using alcohol as secondary fuel were conducted
由數值計算獲得的結論為：引射火箭內的一般流態為超音速區與亞音速區共存，亞音速區不具備做功能力；飛行馬赫數增大，引射火箭內更易於產生壅塞；為了獲得最佳的性能，隨著飛行馬赫數的提高，應當降低一次火箭的工作壓強。Finally, system software exploiture is based on kingview 6. 5 and we used three - dimensional sculpt to simulate locale equipments and realized dynamic simulation, real - time display and memory, historic query, upon or under parameter alarm display, alarm query and historic report forms print, and we can realize internet management and view directly etc. according to industry ethernet setting, firewall ’ s install and high - speed transmission it can satisfy system ’ s security, credibility and real - time in coal mine which is new scada system of mine monitor and control warming system
最後，利用「組態王」軟體進行系統開發，生動的描繪現場設備並動態模擬設備工作，實現實時數據顯示與存儲，歷史數據查詢列印，超限或低限報警，報警查詢，同時能實現網內權限管理，局域網內直接訪問數據等。通過工業以太網路軟體設置和系統防火墻的安裝以及高速傳輸質量能使系統在實時性、安全性和可靠性等方面滿足煤礦實時監測系統應用的要求，該系統可以說是新一代scada煤礦實時監測監控系統。A finite element analysis ( fea ) was eventually conducted, using mori - tanaka model and j - integral, to further explain the toughening mechanisms and fracture behaviour of the particle interleaved composites. the aim of the analysis was to examine the influence of the particle concentration and size, and the interaction between the particle and the crack tip. fea results indicate that interlayer zones can effectively lower j - integral and stress around the crack tip, and the high stress distribution in the region close to the interface can be the driving force for interfacial failure
本文的最後還藉助于有限元方法對層間增韌復合材料進行了宏觀和細觀斷裂韌性分析，基於mori - tanaka等效夾雜理論，計算了顆粒含量和尺寸對j積分的影響，有限元分析的結果同樣表明層間增韌可以有效的降低裂紋尖端應力水平，並暗示界面是可能存在的失效原因，所進行的數值分析起到了進一步支持和解釋增韌機理的作用。The problem of local parameter optimization in low synchronization bunch _ rank speed - control system has been researched in this paper. the paper analyzed the problems existing in trational double closed _ loop bunch _ rank speed - control system, and pointed out the influence on performance of system caused by nonlinear parameter with timing variety. added a local mit self _ adaptive controller to double _ closed loop bunch _ rank speed - control system. the results of computer imitating indicated that under same disturbance the performance of system has been improved obviously. 5figs., 1tab., 4refs
對低同步串級調速系統中局部參數最優化問題進行了分析研究.從理論上分析了傳統的雙閉環串級調速系統中存在的問題，指出了系統中非線性時變參數對系統性能的影響.在雙閉環串級調速系統中增加局部mit自適應規則.計算機模擬結果表明:在相同的擾動作用下，系統的性能得到明顯改善.圖5 ，表1 ，參4分享友人