two-level structure 中文意思是什麼
two-level structure
解釋
二級結構-
This paper mainly aims at the characteristics of the hardware and software structure of the parallel computer on satellite, and has fulfilled researches of fault tolerant technique in three aspects of control theories and engineering : the first research of the system level fault - tolerant module is based on the system structure of the parallel computer on satellite, a kind of cold backup module and a kind of hot backup module for multiprocessor computer have been put forward. then the research of software fault tolerant technique which is based on the operate system named rtems has been carried, the mission level fault - tolerate arithmetic and the system level fault - tolerate mechanism and strategies based on the check point technique have been put forward, at the same time the self - repair technique of software which has used the technique of system re - inject has been studied. finally the technique of components level fault - tolerant based on fpga has been studied, a kind of two level fault - tolerant project which aims at the fault - tolerant module of the parallel computer on satellite has been put forward, and the augmentative of circuit that project design realization need is little, this project can avoid any breakdown of any part logic circuit of the fpga
本課題主要針對星載并行計算機體系結構及軟體結構的特點，從如下三個方面進行了容錯控制理論研究和實踐工作:首先進行了基於星載多cpu并行計算機體系結構的系統級容錯模型研究，提出了一種多cpu冷備份容錯模型和一種多cpu熱備份容錯模型;然後進行了基於rtems操作系統的軟體容錯技術研究，提出了任務級容錯調度演算法以及基於檢查點技術的系統級容錯恢復機制和策略，同時研究了利用系統重注入進行軟體在線自修復的容錯技術;最後研究了基於fpga的部件級容錯技術，提出了對容錯模塊這一星載并行計算機關鍵部件的兩級容錯方案，實現該方案所需增加的電路少，可避免板級晶元以及fpga晶元內部任何邏輯發生單點故障。 -
The three - order modulator has a 2 - 1 cascaded structure and 1 - bit quantizer at the end of each stage, the modulator is implemented with fully differential switched - capacitor circuits. and then, the discussion will begin by exploring the design of various circuit blocks in the modulator in more detail, i. e., ota, switched - capacitor integrator, quantizer, two - phase non - overlapping clock signal, etc., at the same time, these circuits will be simulated in spectre and hspice. at last, the whole cascaded modulator will do behavioral level simulation by matlab soft and simulink toolbox
本論文中，首先介紹模數轉換器的各種參數的意義，以及一階sigma - delta調制器和高階sigma - delta調制器的原理;給出解決高階單環sigma - delta調制器不穩定性的方案，引入級聯結構調制器，特別針對級聯結構調制器中的失配和開關電容積分器的非理想特性進行詳細的討論;本設計的sigma - delta調制器採用2 - 1級聯結構和一位量化器，調制器採用全差分開關電容電路實現;同時對整個調制器的各個模塊進行了電路設計，包括跨導放大器、開關電容積分器、量化器、兩相非交疊時鐘等，並利用hspice和spectre模擬工具對這些電路進行模擬測試;最後，利用matlab軟體和simulink工具對整個級聯調制器進行行為級模擬。 -
This paper researches the basic statistical rule of oil - gas dynamic system from the systematic theory, combining with the common characteristic and structure characteristic of oil - gas dynamic system, taking the design requirement of oil field development programming into consideration, by using of functional simulation principle ( including nn method, differential simulation method ) and historical data of oil field, establishes the in - out conjunctional relationship of dynamic index of oil field development, and researches the two level index prediction of development dynamic with both oil field and oil production plant on the basis of the in - out conjunctional relationship. furthermore, this paper analyzes the " decision - making variable ", " object " and " restriction terms " by the optimization theory and set up several optimal models which compose the oil field development programming, it is following : optimization model of the production composing ( solving the optimal composing of each subentry production and cor responding cost, workload, including the onshore thin oil production, the heavy oil thermal process production, tertiary oil recovery production, and the offshore production ) ; optimization model of measure production structure ( determining the optimal composing of each measure production and measure workload, which is composed of fracture, acidulation, capital repair and so on ) ; optimization model of the production distraction ( optimal distribution of the whole oil field production to each oil production plant ) and the integrated development programming model of oil field
本文從系統理論出發研究油氣動態系統基本統計規律，結合油氣動態系統的一般特點，結構特點，兼顧油田開發規劃設計的要求，利用功能模擬原理（含神經網路方法、微分模擬方法） ，依據油田歷史數據，建立了油田開發動態指標間的輸入輸出關聯關系，並在此輸入輸出關聯關系的基礎上研究了油田及採油廠兩級的開發動態指標預測，同時利用最優化原理，在分析「決策變量」 、 「目標」及「約束條件」的基礎上建立了多個構成油田開發規劃的「優化模型」 ，這些優化模型包括：產量構成優化模型（解決陸上稀油產量、稠油熱采產量、三次採油產量、海上產量及對應的成本、工作量的最優構成問題） ；措施產量結構優化模型（解決壓裂、酸化、大修等各項措施產量及措施工作量的最優構成問題） ；產量分配優化模型（將油田的產量最優地分配到各採油廠）以及油田綜合開發規劃模型。 -
The curved floodgate ' s opening measuring system adopts two - level structure, main control level and field level
弧形閘門開度測量系統採用分層分散式兩級結構，分為主控級和現地級兩層。 -
Two - level algorithm is developed to deal with the two objective function optimal designs that are the radial constraint force and the axial force of the upper structure. corresponding program has been developed to optimize the prestress of the lamella ' s suspen - dome and kiewitt ' s suspen - dome. analysis of construction process is the key problem to suspen - dome
本文採用二級優化的步驟對徑向約束反力和上部桿件軸力兩個優化目標同時進行了預應力優化，並編制了相應的程序對聯方型和kiewitt型弦支穹項結構進行了預應力優化設計。 -
The coherent excitation property of a two - level atom with a hyperfine structure in narrow band laser field
窄帶激光與能級具有超精細結構的二能級原子的相干激發 -
Based on the database design theory and technologies of data mining and two level management structure of expressway construction management in sichuan province, this paper analyzes the regional institution and data flow of expressway construction quality management of the yibing - shuifu expressway, including expressway, resident office, contract section and subentry. fundamental entities involved in. quality management are clearly indicated, including expressway, resident office, contract section and subentry, the relations between them are discussed
本設計在數據庫系統設計和數據挖掘的基本理論上，以四川省高速公路兩級管理體制為模板，從組織機構體系和數據流程兩個方面分析了宜賓?水富高速公路工程質量管理的實際需求，指出質量管理系統中的主要實體，包括高速公路、駐地辦、合同段、以及分項工程，詳細分析了這些實體之間的關系，並以此設計質量管理系統數據庫功能與結構模型。 -
The seasonal variation of the mean meridional circulation and the double - level structure of the hadley circulation are analyzed by the two methods. the paper also studies the zonal difference of the anomalous meridional circulation and the impacts of el nino / la nina events on the local meridional circulation anomaly. conclusions are drawn as follows : 1, the hadley circulations in both hemisphere and the position of their joint uprising branch move wholly with the heat equation, with most north in july and most south in january
然後用簡化方法分析了氣候平均經圈環流的季節變化，論文還對hadley環流的雙層結構和異常經圈環流的緯向差異以及elnino 、 lanina事件對局地經圈環流異常的影響作了研究，結果表明： 1 ，北、南半球hadley環流圈及其共同上升支的位置隨熱赤道作整體性移動， 7月最北， 1月最南。 -
Planes is characterized by complex structure and involving in much factors in a air war, this paper establish two - level structure model based on the characteristics of planes, and calculate the weight of each plane ' s qualities by ahp, and present a approach to validate the consistency of weight
針對飛機結構復雜和空戰涉及因素較多等特點，建立了兩級遞階結構模型，利用層次分析法計算了飛機空-空作戰中各品質因素的權值，並給出了進行一致性檢驗的方法。 -
The writer designs four function modules and two base structure of software, these four modules are the resource management module, the optimization module of the system synthesis, the macro economic development level module and the information management module, the two base software structure is data base, model base and conversational system
在農業生產宏觀決策支持系統的理論框架結構中作者設計了四個功能模塊和兩庫式軟體結構，四個功能模塊為資源管理與評價模塊、系統綜合優化模塊、宏觀經濟發展水平功能模塊和經濟環境信息功能模塊，而兩庫式軟體結構包括數據庫、模型庫和人機對話系統。 -
Then this paper introduced the main method in multi - sensor integrated navigation - kalman filtering method, and a two - level optimization multi - sensor information fusion structure - combined filter which was originated by carlson and kerr, based on the structure of combined filter, it studied the method of navigating by the multi - sensor navigation system integrated by ins milemeter altimeter and piloting, then analyzed the effect of several filters. simulation proved that when altimeter were integrated, the height error was reduced a lot, and the combined filter is more effective than one - level kalman filter
然後，介紹了組合導航中的關鍵技術? ?卡爾曼濾波方法，以及一種二級最優多傳感器融合結構? ? carlson ， kerr等人提出的聯合濾波器，並以聯合濾波器的結構為基礎研究了車載捷聯慣導系統與里程計、氣壓高度計、地標組合導航的方法，比較了幾種組合方法的效果。模擬結果表明，引入氣壓高度計可以有效的減小高度誤差，二級聯合濾波器的效果優於一級結構的卡爾曼濾波器。 -
With the rapid development of wireless communication technology and computer technology ， people wish to get reliable data communication service any time and any where. traditional network can not supply communication service if the whole network need to move because the network devices are fixed by wires and can not move. so, ad hoc network comes. it can provide mobile data communication service compared with traditional network. ad hoc is a network with plat structure and all the nodes is equal. all the nodes need provide relay. but not all the nodes will provide relay and the performance of plat structure is poor in large scale. so the wireless mobile self - organized network adopts a two - level structure by referencing the cell mobile communication system. wmsn uses wireless routers to construct network. it can provide wireless access, relay services to users
考慮到不是所有的站點都願意提供中繼服務及平面結構的局限性（在網路規模較大時性能會很差） ，本課題的無線移動自組織網路參考了蜂窩移動通信系統的特點，是一種具有兩級結構的網路。使用專門的無線設備? ? 「無線路由器」構成具有用戶無線接入、無線組網和路由功能的無線互連網路，為移動用戶提供無線接入、路由和中繼服務。 ieee802 . 11b可以提供很高的通信速率，可以提供很好的接入性能，並且支持ieee802 . 11b協議的設備正成普及的態勢，因此成為我們所選擇的鏈路層協議。 -
Taking liaoning institute of technology as an example of setting up a campus net, the author puts forward two - level structure net design and three - level structure net wiring design. this study expounds the design plan of electing - course system by net based on web with b / s structure, with the students electing - course system as a practical example of the campus net application
並將遼工校園網作為建網的實例，提出了二級結構的網路設計方案和三級結構的網路布線方案，以學生選課系統為校園網的應用實例，論述了基於b / s結構的web方式的網上選課系統的設計方案。 -
1. building aerial gamma - ray spectrometric database developed with sql server 2000 database management system, the entity - relation model of aerial gamma - ray spectrometric database is designed. a two - level storage structure is adopted to store aerial gamma - ray spectrometric survey data so as to shorten data rebundancy maxmimumly
建立航空伽瑪能譜數據庫以sqlserver2000數據庫管理系統為開發平臺，設計了航空伽瑪能譜數據庫的實體?關系模型，採用兩級存儲結構來存儲航空伽瑪能譜測量數據，最大限度地降低了數據冗餘度。 -
The robot controller adopts a kind of two - level structure. the top level was the host controller and motor driver, the main program and motor servo arithmetic program running in it, and also receive command from the remote computer. the lowest level was two sensing system, fixing on foot of the robot, gathering and processing information from multi - kind sensors, and also controlled the pump and valve
機器人嵌入式控制器採用兩層結構，上層為機器人主控及驅動電路，負責運行機器人主控程序及多電機伺服控制演算法，以及接收上位計算機的遠程遙控命令;下層為兩個足部傳感系統模塊，分別安裝在機器人的兩個足上，負責多種傳感器信息的採集、處理及泵和閥的驅動控制。 -
Secondly, to improve the hmmsearch ’ s parallel scalability, a new two - level parallel algorithm based on sequence partition strategy is presented, which is a dynamic load balancing scheme. by introducing the intermediate layer, a new “ master - submaster - slave ” structure is better than the “ master - slave ” structure in parallel scalability
為了提高hmmsearch的可擴展性，本文提出一種基於序列劃分策略的兩級并行演算法，採用動態負載平衡方案，通過增加中間層形成「 master - submaster - slave 」結構，來改善原「 master ? slave 」結構的不足。 -
Secondly, because the system is vulnerable in the process of key producing and signing, we apply a distributed rsa algorithm to the key producing process and adopt a structure of two - level secret shares storing the private key to improve its security
其次，根據系統在私鑰產生和簽名階段易受攻擊的特性，將分散式rsa演算法應用到私鑰的產生過程，並在簽名過程中採用雙層共享結構存儲私鑰，以提高私鑰的安全性。 -
The two - level storage structure consists of basic information table of survey area and data table of survey spot, both of which is related by serial number of survey area
兩級存儲結構為測區基本信息表和測點數據表，通過測區編號建立對應關系。 -
The two level structure of this key management system leads to a definite certificate authentication path, which makes the verifying procedure shorter and makes the system easier to be realized
將密鑰管理系統的體系結構分為兩級，從而保證了有限長的憑證路徑，縮短了證件的檢驗過程並且較易實現。 -
The main work of this paper is as the following : designing precept of the key of and realizing it ; improving arithmetic of similarity ; importing index structure and the tactic of the two level searching
本文的主要工作如下：設計詞語權重的計算方法，並給出實現方案；句子相似度演算法的改進；索引和二級檢索策略的引用。
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