multiplication system 中文意思是什麼

The multiplication system of the electron - multiplier phototube is based on electronic voltage. so, it is especially important to choose a suitable pmt and reasonably design pmt disparted - voltage - device

經分析比較各種型號光電倍增管的性能及特點，本文採用emi公司雙堿陰極的9789qb管型光電倍增管。

According to the least twin multiplication to calculating the sensitivity index in several water production functions. thus, the writer obtains the fitted the value of the sensitivity index and the varied rule. at the same time, the writer puts forward a new method named rag a ( real coding based accelerating genetic algorithm ) and combines raga with dpsa to calculating the best irrigation system under the non - sufficient irrigation of well irrigation rice in sanjiang plain

根據《隨機水文學》理論中的時間序列分析法，建立了適合三江平原井灌水稻需水量預報的非平穩時序隨機模型；通過分析降雨隨機特性，選定季節性時序隨機模型，建立了適合三江平原井灌水稻降雨預報的月平均降雨模型；根據最小二乘法，計算出幾種常用水分生產函數中的敏感指數及敏感系數，進而得到三江平原適宜採用的水分生產函數漠型及模型中敏感指數的變化規律；本文提出遺傳動態規劃法（ raga ? dp ） ，即採用改進的基於實數編碼的加速遺傳演算法（ realcodingbasedacceleratinggeneticalgorithm ，簡稱raga ）與動態規劃法（ dpsa ）相結合，推求非充分灌溉條件下三江平原井灌水稻的最優灌溉制度。

In this paper, a lot of researches and exploration are applied to studying the universality and expansibility of hardware and the arithmetic design and code optimization of software. especially, all of the following arithmetics or conceptions are worked out in the research of software design : self - adaptable compression arithmetic based on dictionary model for data collection system, similarity full binary sort tree, a optimized quick search arithmetic and an improved arithmetic of multiplication in the floating - point operation. and all of the arithmetic are designed with mcs - 51 assembly language. the quick search arithmetic, in which merits of both binary search and sequence search are used fully, are based on the specialty of preorder traversal in similarity full binary sort tree

特別在軟體設計研究中，提出了適用於數據採集系統的數據壓縮演算法? ?基於字典模型的自適應壓縮演算法；提出了類滿二叉排序樹的定義；提出了基於類滿二叉排序樹的先序遍歷特性的最優化快速查找演算法，它充分利用了折半查找和順序查找各自的優點；提出了浮點運算乘法的改進演算法；並在mcs - 51匯編語言層次上對所有的演算法加以實現。

In this article, firstly the background of the textile trade conflicts within sino - us or sino - euro are introduced, thus learn that how to discern and dodge the foreign trade risks, how to choose the appropriate investment projects have already become one of the most important questions for exporting companies on foreign trade affairs well - known as high investment and high risk. so the main text makes a risk analysis qualitatively and quantitatively on a textile - exporting trading company from three angles of statistic 、 game theory and portfolio theory, which is the main content that we studied. firstly, the statistic article adopts data of the transaction closing price of the textile clothing index in shenzhen stock exchange at the end of each quarter as well as several other kinds of data reflecting the macro - economic changes, performs an empirical analysis of these data according to the theory of co - integration test 、 granger cause test and impulse response function of time series in economitric, and learn that the impact to ti is more obvious by the economic index reflecting local commodity price level and economic prosperity degree home and abroad, as well as the impact degree and the time lag degree, and knows the macro - economic risks faced by textile business enterprises ; after that by the game theory angle we analyze exactly the managing risks faced by one textile export corporation named beauty. from the game expansion chart the system arrangement between censor ways by exportation goal countries and exporting strategies by the exporting enterprises has been analyzed. involving the benefit assignment between them both the limited rounds and infinite rounds negotiations of cooperation games have been studied, and then country responsibility and the enterprise managing risks on foreign trade affairs and so on have been analyzed exactly ; in order to realize the investment multiplication in the certain degree to disperse the risk, the

本文首先介紹了中美、中歐紡織品貿易爭端的來龍去脈，由此可知在涉外貿易這種以高投入、高風險著稱的行業里，如何甄別和規避外貿風險、如何選擇合適的投資項目已經成為外貿企業的首要問題。因此，正文分別從統計學、博弈論和投資組合三種角度對涉外紡織品貿易公司風險進行了定性和定量的分析，這也是本文的主要研究內容。首先，統計學篇選取了深圳證券交易所行業分類指數?紡織服裝指數（ ti ）每一季度末的交易收盤價和若干種反映宏觀經濟變化的指標，利用計量經濟學中時間序列的協整檢驗、 granger因果檢驗和脈沖反應函數等理論做實證分析，從而得知反映國內物價水平和國內外經濟景氣程度的經濟指標對紡織板塊上市值的沖擊比較明顯，且可知沖擊程度和時滯度，進而分析出涉外紡織企業所面臨的宏觀經濟風險;接著，從博弈論的角度具體分析一家紡織品出口公司（ beauty ）的外貿活動所面臨的各種經營風險，該篇從博弈擴展圖入手，分析了出口目的國審查方式與本企業出口策略之間的制度安排;並圍繞雙方的利益分配，研究了有限回合和無限回合合作談判博弈，然後具體論述了國家責任和企業涉外經營風險等問題;在一定程度上為了實現投資多元化來分散風險的目的，投資組合篇從經典的markowitz模型著手，在一些特定條件的限制下，給出了一個相應的投資組合模型。

Firstly, we generalize and analyze the advantages and present research of elliptic curve cryptography ; secondly, we study the basic theory of the ecc ; thirdly, we illustrate the safety of the ecc and discuss the elliptic curve key agreement scheme, elliptic curve encryption scheme and elliptic curve digital signature algorithm ; fourthly, we study fast algorithms of the multiplication and inversion multiplication of the element of in the underlying finite field f2m whose characteristic is two represented by the two basis of optimal normal basis and polynomial basis. we make improvements to the fast algorithm of the polynomial basis multiplication by hankerson and base on the experiments, we describe the properties and compare the advantages of the multiplication and inversion multiplication of the elements in f2m field under optimal normal bases and polynomial basis. results concluding from the study car be used as references in the realization of the elliptic curve cryptosystem ; fifthly, we overview the current fast algorithm of point multiplication, improve the fix base point comb algorithm, advance the speed of the whole system and remark the advantages and disadvantages of the popular algorithms based upon the experimental datas ; sixthly we realize the algorithm library of elliptic curve cryptography based on the f2m. only change slightly in our algorithm library can we realize the ecdh, eces, ecdsa based onf2m of anysize ; seventhly, we realize the ecc on two secure elliptic curves, including ecdh, eces, ecdsa

本文首先介紹並分析了橢圓曲線密碼體制的優點及研究現狀；其次研究了橢圓曲線密碼體制的基本理論；第三，分析了橢圓曲線密碼的安全性並介紹了密鑰共享，加密，數字簽名等橢圓曲線密碼體制；第四，深入研究了特徵為2的有限域f _ 2m中的元素在多項式基和最優正規基表示下的乘法運算和乘法逆運算的快速演算法，並對hankerson等人提出的多項式基下的乘法運算的快速演算法作了改進，而且在實驗的基礎上不僅分析研究了f _ 2m域中元素在多項式基和最優正規基表示下的乘法和乘法逆運算的性能，還對這兩種基表示下的f _ 2m域中元素運算效率的優劣作了比較和研究，所得的結論可供在實現橢圓曲線密碼體制時參考；第五，研究了目前流行的計算橢圓曲線標量乘法的快速演算法，同時改進了固定基點梳形法，提高了整個系統的速度，並在實驗的基礎上分析研究了流行演算法的優劣；第六，實現了基於f _ 2m的橢圓曲線密碼體制的演算法庫，在我們的演算法庫中只需稍微改變便能實現基於任意尺寸的f _ 2m上的ecdh ， eces ， ecdsa等橢圓曲線密碼體制；第七，實現了兩條安全橢圓曲線上的橢圓曲線密碼體制，包括ecdh ， eces ， ecdsa 。

Chance consists of a multiplication service team including experienced experts, brand masters, market researchers, visual creative designers, activity directors and many other experts, providing customers with a comprehensive service system

承智廣告集聚了一批極富實戰經驗之專家，並攜品牌大師、市場研究學者、視覺創意、活動導演等各路專家，構築多元化的服務團隊，為客戶打造全方位的服務體系。

Forever the without limits innovation spirit because this spirit is precisely numerical code rationality choice multiplication, the positive upward values centralism manifests, is precisely develops the establishment in take the public ownership system as the main body, in diversified economies ingredient communal development foundation socialist market economy objective need, is precisely china s enterprise dares to greet the economical globalization and the knowledge economy flood tide challenge need, is precisely any enterprise unceasingly through the system innovation, the organization innovation, the technical innovation, the pursue enterprise incessant realization great span, jumps the type, continues the need to develop, also will be unceasingly develops the enterprise general staffs to innovate spiritual, the offer spirit, the realistic spirit, the casting enterprise soul basis is at, in this kind forever under under the without limits innovation spirit guidance, the drive the enterprise culture will be able to transform the giant material force, the enterprise culture can become the modern business management the scientific idea, the surmounting enterprise life cycle infinite power

-追求卓越永無止境永無止境的創新精神，因為這一精神正是積極向上的價值觀的集中體現，正是發展建立在以公有制為主體，多種經濟成份共同發展基礎上社會主義市場經濟的客觀需要，正是中國的企業敢於迎接經濟全球化和知識經濟大潮挑戰的需要，正是任何一個企業不斷通過制度創新組織創新技術創新追求企業不斷實現大跨度跳躍式持續發展的需要，也是不斷發展企業廣大員工創新精神奉獻精神求實精神鑄造企業靈魂的根本所在，在這種永無止境的創新精神引導下激勵下企業文化才能轉變成巨大的物質力量，企業文化才能成為現代企業管理的科學理念，超越企業生命周期的無窮動力。

Through utilizing the shift multiplication characteristics of m series, this kind of radar system eliminates the bad effect of doppler frequency. in theory, the doppler tolerance of the radar system can reach the half of the code rate with proposed echo pretreatment method in this paper

從理論上說，應用於該雷達系統的信號處理方法可以使得雷達系統的多普勒容限達到偽碼子碼重復頻率的一半，從而使偽碼調相雷達可以有效地發現高速目標。

Digital circuit multiplication system

數字話路擴容系統

Section c : comparing and analyzing the youths " educational backgrounds in different countries, this thesis searches and studies the inner consequential factors of the youths " different educational cognitions and requirements. it compared that with china ' s educational situations for youths and proposes that : we should run the education by law and enlarge the input to education, and should broaden the education abroad based on consummate education. we should improve the informationization level and multiplication of education, realize the multiplication of university - entrance examination system and establish the life - long education system

第三部分：通過對各國青少年教育背景的比較分析，對青少年不同教育意識與需求，教育內部的影響因素的研究探討，對比我國青少年的教育現狀，提出了依法治教、加大教育投入，發展與完善的基礎上擴大教育對外開放，提高教育信息化水平，促進教育多樣化、實現多元化高考制度，構建終身學習體系的幾點對策和建議。

Operation layer is the basic core part in elliptic curve encryption system including how to calculate elliptic curve ' s stairs is a large prime or including a large prime gene to ensure elliptic curve to be safe elliptic curve ; in this article safe elliptic curve is chosen by p1363 sae algorithm. besides, how to achieve fast point multiplication will influence the performance efficiency of the whole encryption system ; in this article, for different situations, signed binary method and rolling window method are respectively applied to perform quick operation of elliptic curve ' s point multiplication

運算層是橢圓曲線密碼體制實現的最基礎、最核心的部分，包括如何來計算橢圓曲線的階為大素數或含有一個大的素因子，以保證所選取的橢圓曲線為安全橢圓曲線，本文根據ieeep1363協議的sea演算法實現了安全橢圓曲線的選取；另外如何實現標量乘的快速運算，將會影響整個密碼系統的實現效率，本文根據不同情況對橢圓曲線的標量乘法分別採用了帶符號的二進製法和滑動窗口法進行快速運算。

Chapter four : firstly, creatively puts forward the double circulation message drive programming idea, and detailedly expounds the basic theory of the double circulation message drive ; afterwards, works out the software of the electromagnetic flowmeter system according to it ; finally, works out the multi - byte decimal fixed point numbers multiplication & division subprogram, through studying the current arithmetic

第四章首先創造性地提出了雙循環消息驅動程序設計思想，並詳細闡述了雙循環消息驅動的基本原理；然後根據該思想設計出電磁流量計系統軟體；最後通過研究原有演算法設計出演算法改進后的多位元組十進制定點數乘除法程序模塊。

The paper, for the harmonics detection method used in power system, presents an sampling method based on frequency multiplication phase - locked. through phase - locked loop to track the power wave, which not only reduces the affect of spectrum leakage to the harmonics analysis, but also realizes quick. accurate and, real - time measurement

本論文主要針對電力系統中採用的諧波測量方法而提出的一種基於鎖相倍頻採集方法，通過鎖相環對電力波形進行實時跟蹤，既解決了頻譜泄漏對諧波測量精度的影響，又實現了快速的，準確的，實時性的測量。

First, it presents the basic concept and theory of the elliptic curve, discussing the choice of the coordinate system and fast realization of several point multiplication algorithm, studying all kinds of operation of the field element

首先介紹了橢圓曲線的基本概念和理論，討論了坐標系的選擇和幾種標量乘演算法的快速實現，研究了域元素的各種運算。

The coordinate transformation rules, the combination characteristic of the transfer function are discussed. the solution procedure of series mechanical system is deduced by applying dual - vector addition and matrix multiplication. and the mathematical models are obtained

根據建立的數學模型，本文提出了相應的按位存儲數據結構以及樹型遞歸分解演算法，實現了狀態變換矩陣（包括類型、方向及變換特徵）的自動分解。

Based on above - mentioned schemes, the power detection system based on tms320vc5410 is designed, which realizes collection, a / d, digital signal processing. keyboard. display and uart ? the ad73360 gather chip commonly used in power system is used in front of the power detection system, and the circuit of frequency multiplication phase - locked is consisted of phase - locked loop device ? d4046 and frequency division device cd4060 to produce the gather signal of ad73360 frequently, the gather wave and re sult can be displayed on lcd

基於上述方案，本人設計開發了基於tms320vc5410的電力採集檢測系統。基本實現了採集、 a d轉換、數字信號處理、鍵盤顯示、異步通信等系統軟硬體設計。該系統前端採用電力系統常用的ad73360採集晶元，鎖相倍頻電路由鎖相環cd4046與分頻器cd4060一起構成，產生ad73360採集觸發信號。

By processing real - time digital analog fault vibration signal and adopting minimum quadric multiplication and rectangle function, correct frequency chart will be gained. thus, the system design based on advanced dsp can be applied to the real - time fault diagnosis of rolling bearing in modern high - speed train

通過對採集的模擬的有故障振動信號進行在線實時數字信號處理，並在信號分析方面採用了最小二乘法及加窗函數，以獲得正確的頻譜，通過信號處理，並進行結果比對，進而可證明此系統在高速列車轉向架滾動軸承在線診斷中應用的可行性。

Basing on the operating characteristics of the pmsm machine tool spindle drive system, a novel frequency multiplication circuits which can be switch to 2 or 4 times of base frequency is proposed in the paper. it resolves the paradox of using a same photoelectric encoder under high and low speed operating condition of motors

它能夠根據指令實時的對編碼器反饋回來的電機速度信號進行2倍頻或4倍頻處理，解決了用同一個編碼器來檢測電機低速和高速的矛盾。

Supermaltose, a kind of new sugar source for health, in low sweetness, low heat value, and no dental caries. it s bifidobacteria multiplication can improve body digesting system and immunity function

超高麥芽糖，是保健新糖源低甜度低熱值口感柔順，含有人體所必需的雙岐因子，有益健康。

The multiplication and the additive development is a city function basic development tendency. because of the long - term implementation planned economy system, nearly all the key city of our countrys has the city function which exists as the industrial production center with unitary

多元化、疊加性發展是城市功能的一個基本發展趨勢，我國由於長期實行計劃經濟體制，中心城市幾乎都是作為工業生產中心而存在的，城市功能過于單一。