互易系數 的英文怎麼說
中文拼音 [hùyìxìshǔ]
互易系數
英文
reciprocity coefficient-
Then this paper concerns about the network packet intercepting technology of linux os and gives a thoroughly overview of network hacking methods and some application protocol criterion, including http, ftp, telnet, nntp, pop3, smtp etc. then the system design scheme of the transparent proxy has been discussed, this system can be divided to 4 modules below : establishment of transparent charnel, implement of proxy service, gui configuration and management application, accessory filter functions ( such as url filter, command filter and logger etc ). we explain key techniques in all 4 main parts of this system, define the interfaces of each module, what is more the main data structures and software implements codes are all illustrated
首先，論文陳述了防火墻的相關技術基礎，分析了透明代理作為一種先進易用的防火墻技術的原理，闡述了linux操作系統網路數據包攔截技術和http 、 ftp 、 telnet 、 nntp 、 pop3 、 smtp等應用層協議的協議規范和具體的工作流程。接著敘述了本透明代理服務器的系統總體設計方案，將系統分為以下幾個部分：透明通道建立、代理服務實現、 gui配置管理程序以及過濾功能（如url過濾、命令過濾和日誌審計等） 。論文然後分別介紹各個關鍵部分的具體實現要點，解釋了相互間的介面關系，列出了主要數據結構和實現流程。Firstly, in spherical coordinate system, the sovp formulation for the time - harmonic electromagnetic fields of the current dipole in conductive infinite - space is derived, using reciprocity theorem and transforming relations between special functions. then, selecting appropriate coordinate system, using superposition principle, the boundary - value problem of modified magnetic vector potential on the problem of a time - harmonic current dipole in spherical conductor is solved and analytical solution is obtained. finally, by means of the addition formulas of legendre polynomial and spherical harmonics function of degree n and order 1, the analytical solution in spherical coordinate system specially located is transformed into that in spherical coordinate system arbitrarily located
首先利用特殊函數間的轉化關系和互易定理推導得到了無限大導體空間中球坐標下時諧電流元電磁場的二階矢量位形式：然後利用疊加原理，選擇合適坐標系，求解了導體球中時諧電流元的修正磁矢量位邊值問題，得到了問題的解析解；最後依據不同坐標系下電磁場解的轉化原理，藉助勒讓德多項式和n次1階球諧函數的加法公式，將坐標系特殊安放時的電磁場解析解變換到坐標系一般安放時的解析解，給出了球內電場和球外磁場的並矢格林函數。So security and safeguarding of information on computer networks has become one of the most import problems, because of the diversity of network ' s connection, the asymmetry of terminal ' s distribution, the interconnection of computer and the attack of hacker, cracker and vicious software. it is more important for military ' s automation commanding network and banks whose network communicates sensitive data. thus we should apply sufficient safeguarding to these networks, otherwise the computer network will be useless, even jeopard the national security
但由於計算機網路具有連接形式多樣性、終端分佈不均勻性和網路的開放性、互連性等特徵，致使網路易受黑客、駭客、惡意軟體和其它不軌的攻擊，所以網上信息的安全和保密是一個至關重要的問題。對于軍用的自動化指揮網路和銀行等傳輸敏感數據的計算機網路系統而言，其網上信息的安全和保密尤為重要。因此，上述的網路必須有足夠強的安全措施，否則該網路將是個無用、甚至會危及國家安全的網路。The architecture of client / server based on transaction middleware is a typical kind of the distributed on - line transaction processing, becoming a major platform of enterprise information system, which offers communication of striding platform, loading balance, fault - tolerant and resumable ability, and strengthens a new generation middleware in common with 3 - layer architecture provided with the strong security, excellent management and high availability in common. numerous distributed system, different database and different network environment are closely linked up among an enterprise, offering the function of mutual operation on application layer
基於交易中間件的c s結構是一種典型的分散式事務處理系統，成為構築企業信息系統的主流平臺，它提供了強大的跨平臺通訊、負載平衡、容錯及其故障恢復能力，並在這個基礎上進一步強化了安全性、可管理性和高可用性的新一代通用型三層結構平臺的中間件，把企業中眾多的異構系統、異構數據庫、不同網路環境緊密的聯系起來，並在應用層提供了互操作性的功能。There are several computer network architecture modes in the history of computing technology, such as : peer - to - peer connection of server architecture mode, bus topology architecture mode, ring topology architecture mode, two - layered or three - layered client / server architecture mode. in the recent years, the three - layered browser / server architecture has been developed rapidly and it meets the medium - sized enterprises " information management needs, so it is widely used. asp ( active server page ) developed by microsoft is a kind of programming environment used in server
計算機網路的網路體系結構經歷了從幾個服務器簡單對等互連、總線體系結構、環線體系結構、客戶機服務器體系結構和瀏覽器服務器體系結構等發展變化，目前瀏覽器、 web服務器和數據庫服務器的三層b s結構應用日益廣泛， asp技術以其開發簡單、功能強大、完全和html集成、易於生成、無需手工編譯和連接、面向對象、可擴展activexserver組件等優點在這些web應用中獲得了系統開發者的青睞和廣泛採用。The safety of transmission line plays a important role in power system safety it is not only the requirement of ensure supply power reliability, but also the necessary precondition of enhance power system stabilization, to remove faulty line quickly and accurately, also keep non - faulty line continuous work when some transmission line faults current differential protection is a kind of simple, reliable and good - selective protection manner to any variety of transmission lines, power system development needs current differential protection apply to transmission lines, moreover the advancement of electric and communication technology enable current differential protection apply to transmission lines firstly, the paper discusses, analyses the research and application transmission line protection in detail, compare the principle and realistic presupposition of general line pilot protections secondly, because conventional current vector differential protection are influenced easily by load current and transitional resistance, in order to at the same time quicken protection act, the principle and criterion include work characteristic of differential protect based on fault component sampled values are studied, results shows that differential protect based on fault component sampled values excels general vector current differential protection in reliability, sensitivity and anti - saturation of current transformer in addition, synchronous current sampling methods at all terminals of line is analyzed and estimated lastly, the principle and criterion. also device design about current sampling values differential protection based on optical fiber communication, which apply to short transmission lines are concretely investigated,
基於基爾霍夫定律的電流差動保護無論對於何種形式的輸電線路都是一種簡單、可靠、選擇性強的保護形式，電力系統的發展使得電流差動保護應用於線路保護成為需要，而電子、通信技術的發展使得電流差動保護應用於輸電線路成為可能。首先，本文對目前線路保護的研究和實際應用情況進行了討論和分析，比較了常用線路縱聯保護的實現原理和實現條件及優缺點。其次，針對常規相量電流差動保護易受正常負荷電流和故障過渡電阻影響的缺點，同時為加快差動保護的動作速度，對基於故障分量瞬時采樣值電流差動保護的原理、判據、動作特性等作了討論和分析，結果表明基於故障分量瞬時采樣值電流差動保護在可靠性、靈敏度、抗電流互感器飽和方面明顯優于常規相量電流差動保護，對電流差動保護各端的同步采樣方法和數據通信也進行了分析和評價。It is easy to deploy clients, and easily updated and conveniently maintains, and has the good to hand over with each other. the ica network protocol consumes approximately 5 - 10 kilobits - per - second ( kbps ) of network bandwidth, include the dial - up connection, so it can run on any kind of connections
6或sqlserver7刀這樣的方式客戶端不需要安裝emis應用程序， emis完全在應用服務器上運行，對客戶端用戶數目沒有限制，客戶端不需要維護，系統升級、更新非常容易，數據維護方便且具有良好的交互性。On one hand, it gets to the conclusion that china ’ s foreign direct investment has mutually complementary relationship with foreign trade, based on the statistical analysis on the outflow of foreign direct investment and the volume of international trade, combined with the qualitative analysis on the trade effect to investing country
一方面，通過對對外直接投資流出量與對外貿易進出口額的數據作定量的統計分析，並輔助相關的母國對外投資的貿易效應分析，得出我國對外直接投資與對外貿易之間存在互補關系，即對外直接投資促進了對外貿易的增加。First of all, i summarize the forecast model category and estimate each model in detail, then, i adopt different model to forecast demand, supply, bdi of bulk shipping market. as to demand forecast, i mainly focus on the imitating precision of primitive data, adopt grey forecast model, self - suited filter model separately, and then compose these models as a better one. as to supply forecast, i use econometrics model to describe the complicated relationship of demand, supply, bdi, gnp etc. as to bdi, i try to draw into market integrated factor, describe the relationship of bdi, supply, capacity, speed, rate of oil, navigating capital etc. then finally, i make afterwards evaluation of these models and then analyze future bulk shipping market in detail
對于需求預測，著重考慮對原始數據的擬合精度，經過模型比較優選論證，分別採用了灰色一階模型，改進的灰色二階、自適應過濾預測的加權組合模型，得到了相當高的擬合精度；對于供給預測，運用計量經濟模型對供給、需求、運價、 gnp 、進出口貿易額等多變量之間復雜的相互關系進行動態模擬，定量的反映出各變量之間的因果關系；對于運價預測，嘗試引入市場綜合因數概念，化繁為簡，通過描述運價與運力供給、載重噸、油耗、航速、燃油價格、航行成本等等諸多因素的關系來進行預測。The business scope of china railway investments group limited is : the investment, design and information consultation of projects ; the research, design, development, installation and application of “ the television, telephone and computer three in one digital information system ” of the railway station and train ; railway mobile tv on the trains ; railway cable tv ; railway information website ; railway newspaper and magazines ; railway art performance ; railway movie & tv producing and issuing ; design, make, and issue railway satellite tv advertisement, railway cable tv advertisement, railway information website net advertisement, train television advertisement, train sponsoring advertisement, billboard advertisement on train, supplies advertisement on train, small articles advertisement on train, railway station billboard advertisement, railway newspaper and magazine advertisement, propaganda sheet advertisement ; the investment and construction of railway project ; railway passenger and freight transportation business ; railway chain tourist hotel and catering business ; material trade ; import and export of technology ; telecommunication operating business ; railway banking business ; energy sources exploiting and operating business
中鐵多經投資集團主要經營范圍為：項目開發投資、策劃及相關信息咨詢；鐵路站車「電視、電話、計算機三網合一數字信息系統」的研究、設計、開發、安裝應用；鐵路衛星電視及鐵路無線寬帶網路電視；鐵路有線互動電視；鐵路信息網站；鐵路報刊雜志；鐵路文藝演出；鐵路影視製作；設計、製作、發布鐵路衛視廣告、鐵路有線電視廣告、鐵路信息網站網路廣告、列車電視廣告、列車冠名廣告、列車上廣告牌廣告、列車上用品用具廣告、列車上小商品實物廣告、火車站廣告牌廣告、鐵路報刊雜志廣告、宣傳單張廣告；鐵路建設項目投資、施工；鐵路客運、貨運業務；鐵路連鎖旅遊酒店、餐飲業務；物資貿易；技術進出口；電信運營業務；鐵路銀行業務；能源開發及運營業務。In chapter 1 the factual case is introduced. in chapter 2 the development and theory basis of enterprises strategic alliances are reviewed. the theory of the strategic alliances is analyzed from three aspects of exchange expense, value chain and complementarity of assets
本文第一章概要介紹了案例? ?艦船研究院石油數控測井系統戰略聯盟的建立；在第二章中回顧企業戰略聯盟的發展和理論基礎，從交易費用，價值鏈和資產互補性三個角度對企業戰略聯盟進行理論分析。The theory of property rights are briefly discussed at the beginning. there are varied explanations about the definition of property rights in economics listed here and three common points of the definition of property rights are synthesized : ( 1 ) property rights are exclusive rights and can be equally exchangeable. ( 2 ) property rights are behavioural relations admitted by people who use substance because of its existence. ( 3 ) property rights are plural and a set of rights
文章首先簡要介紹了產權的基本理論，對產權定義的不同解釋，文中列出了幾種有代表性的看法，並總結出產權定義的三個共同之處： （ 1 ）產權是一種排他性的並且可以平等交易的權利； （ 2 ）產權是由物的存在及關於它們的使用所引起的人們之間相互認可的行為關系； （ 3 ）產權是一個復數，是一組權利束。With fast development of our country " s gas industry and air ' s increasingly serious contamination in city, using gas instead of coal and supplying energy in high efficiency and cleanliness has become necessary way in city. there are different problems in the current heating ( air conditioning ) systems. in the cogeneration system, heat and power affect each other, heating - pump heating ( aie conditioning ) system can not satisfy the peak load very well, the cost of gas fuel in boilor heating sestem is so high. the high generating efficiency of the diesel - engine two - sourse heating ( air conditioning ) systems is limited in range of 100kw - 1000kw, the heating scope is so limited. combined cycle of two sourse heating ( air conditioning ) system is most suitable selection to buesness community with big scope my paper aim at this syetem ' s primary question when it is applied in our country - - - - bringing project into execution and technology economy feasibility and off - design performence, combined with a certain demonstrating project in beijing buesness community, going along with calculating and analyzing, drawing out some efficient datas and conclusions, based on this, bringing out primary alements affecting combined cycle of two sourse heating ( air conditioning ) system " economics
熱電聯產系統熱電相互牽連，熱泵供暖（空調）系統不容易很好地滿足尖峰負荷，鍋爐供暖系統供熱中天然氣燃料構成的成本過高，內燃機雙源供暖（空調）系統的高發電效率僅限於100kw - 1000kw負荷范圍，供熱面積有限。對于大面積的商業園區、居民小區，燃燒天然氣的燃氣-蒸汽聯合循環雙源供暖（空調）系統是最佳選擇之一。本論文針對該系統在我國應用時的主要問題- - -方案的技術實施與技術經濟可行性，結合北京某一商業園區示範工程，進行了系統的計算與分析，得到了有效的數據與結論，在此基礎上，提出影響聯合循環雙源供暖（空調）系統經濟性的主要因素，並進行敏感性分析，得出有益的結論；最後通過各種供暖方案的比較分析回答了某些人對該系統的疑慮和不解，並指出系統的優化方向。The government is also actively exploring the feasibility of the digital trade and transportation network to provide an e - platform for the exchange of data among different players in the supply chain
政府亦積極研究發展數碼貿易運輸網路系統的可行性，以提供一個電子平臺方便供應鏈內的參與者互相交換數據。On hardware and soft ware, good anti - disturbances measures has been adapted considering environmental factors such as high altitude, temperature difference. the anti - disturbances ability was enhanced. cooperation of hardware and software make hardware circuit simple and little effect of zero point shifting, and easy for software system to be modified. after the hardware component and the software component of on - line
在硬體和軟體的設計上，採取了較好的抗干擾措施，充分考慮大溫差高海拔等各種環境因數，提高了監測系統的整體抗干擾能力，採取軟體和硬體相互配合的方法，使硬體電路相對簡單，系統受零漂移的影響較小，同時對軟體系統的改進較為容易。On the basis of annual statistics for the 1956 - 2004 period published by the national bureau of statistics, this paper presents an empirical analysis of the interaction between import and export trade and economic growth in guizhou
摘要以國家統計局發布的1956 - 2004年度統計數據為基礎，實證分析貴州省進出口貿易與經濟增長之間的互動關系。5. the paper builds a new econometric model for estimating both the returns and durations, as well as gives the joint density of the marked point process of duration and transaction - by - transaction returns with an acd - arma framework
5 、在acd模型的基礎上引入arma模型，來描述交易的時間間隔和交易期間的收益兩個時間序列之間的相互關系，建立了acd - arma模型，給出了兩個變量之間的聯合分佈密度函數以及估計方法。Besides, china tend to compete with most asean member in the affluent asian markets, such as japan and singapore, as revealed by the calculated overall bilateral complementarity ( obc )
通過測算國家間貿易互補性系數（ obc ）發現，中國的貿易結構與日本、新加坡、馬來西亞存在互補性，但與其餘東亞國家和地區呈現競爭關系。On the base of the fujian power system that has the special configuration of " large power generator with small power system " in 2000, constructs power system models of fujian and fujian interconnected with other parts, does a lot of calculation and analysis and simulation, researches the security mechanism and rule of the fujian special power system interconnected with large power system. the above connection can keep security and stability and can make obvious benefits, but when the transmission power reach to excessive quantity the main power grid will increases interconnected flow - in or flow - out exchange power load. the power operation state tended to instability ; the infirmable interconnection make s the damp infirmable
本文以2000年前後具有「大機組小電網」特殊結構的福建電力系統為背景，建立了福建電力系統及其與外部互聯的數學模型，開展大量的模擬計算分析，研究了「大帆組小電網」電力系統與大容量電力系統互聯偏弱的安全穩定性的機理和規律：前述互聯可以安全穩定運行，取得顯著效益，當傳輸功率達到一定量后，主網架增加了送出或吸收互聯交換功率的負載，系統運行狀態向穩定性水平有所下降的方向轉移；聯絡偏弱使阻尼偏弱，聯絡線小幅低頻振蕩和大幅低頻振蕩易被激發，聯絡線一旦重載斷開，系統高周或低調嚴重。Because of the expedient modulation of curie temperature tc to room temperature, the larger dielectric - temperature coefficients, pst materials are favorable to be used in microwave tunable devices
其還是一種互溶性較好的鈣鈦礦鐵電材料，其居里點溫度t _ c可較容易地調至室溫附近，介電溫度系數較大，是一種非常適用於電場調節元件的材料。分享友人