數字的密度 的英文怎麼說

中文拼音 [shǔzìdemìdù]
數字的密度 英文
numberical density
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 字 : Ⅰ名詞1 （文字） character; word 2 （字音） pronunciation 3 （字體） form of a written or printed ...
  • 的 : 4次方是 The fourth power of 2 is direction
  • 密 : Ⅰ名詞1 （秘密） secret 2 [紡織] （密度） density 3 （姓氏） a surname Ⅱ形容詞1 （距離近; 空隙小）...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 數字 : 1. （表示數目的文字; 表示數目的符號） figure; digit; numeral; character; numeric character 2. （數量） quantity; amount
  1. The structure of this paper goes like this, the first chapter introduce the development of e - b / l in practice and in laws. and draw a conclution that the electrification of the b / l is a history tide. in the second chapter, on the basic of reseach the security trap in e - b / l running, 1 conclude six security elements of, e - b / l : the liability of the system, the authenticity of dealers ' identity. the integrity and secrecy of electronic data, and the validity and evidence effectiveness of electronic data. from the third chapter to the eighth, 1 reseach these elements one by one. the third chapter introduce the establishment of the e - b / l security system, and some related laws the fourth chapter introduce the certification authority of e - b / l. in the fifth chapter, 1 introduce the encrypt of electronic information and some countries ' control on use / import / export crytography. the sixth chapter introduce the concept and principle of digital signature, and reseach some related legal issues. the seventh chapter reseach the legal demand of validity, then come to a conclution that to establish a independent electronic information system is necessary. in the eighth chapter, 1 reseach some countries " regulation on the evidence effectiveness of electronic data

    第二章在分析電子提單運作中的安全隱患的基礎上，歸納出其六大安全要素，即系統的可靠性、交易者身份的真實性、數據電訊的機密性和完整性、數據電訊的合法有效性以及交易者行為的不可抵賴性。第三章到第八章分別對這六大要素進行分析：第三章介紹了電子提單網路安全體系的建立以及系統安全保護法規，第四章則介紹了電子提單的安全認證機構，第五章介紹了信息加密技術以及各國立法對密碼技術的進出口及使用的控制，第六章介紹了數字簽名的概念及原理，並以bolero為例介紹了數字簽名的技術方式，對有關法律問題作了論述；第七章首先論述了電子提單對有效性的法律需求，然後結合國內法和國際規則的規定論證了數據電訊制度產生的必然性；第八章通過對各國立法對電子證據的法律效力的規定，論述了對電子交易至關重要的數據電訊的不可抵賴性。
  2. As an effectively complemental way for traditional encryption means, with the development of information, high attention has been given to the digital watermark technology by international corporations and the academic community

    隨著信息化建設的加快，數字水印作為傳統加密方法的有效補充手段，已受到國際企業界和學術界的高度關注。
  3. For the anticounterfeiting of printings ( such as certificate ), the existent many ways ( such as rainbow holograms ) are not available as the need for special use : anti - distortion and anti - copy. basing in the double - random - phase transform, this article puts forward a new way that two - dimensional bar code is used as anticounterfeiting label with anti - printing ? scanning and anti - damage properties. the major job are : ( 1 ). basing in the ascii codes, numerals and alphabets are encoded and subsequently transformed into two - value bar code matrix figure. later, using amplitude - based double - random - phase transform, the enciphered gray scale figure is formed. by computer simulation ( 4f system ) and printing as well as scanning ( 20 times ), we get the result that the gray scale figure with little miscoding rate ( 0. 0026 ) by “ matrix expanding way ”

    本文主要開展了以下三項研究工作: （ 1 ） .用自定義編碼方案，將數字和字母（ ascii碼）轉換成二值條碼圖;對該圖形進行振幅型雙隨機相位加密變換，得到原信息的加密灰度圖;通過4f光學系統計算機模擬和列印-掃描實驗，證明本文提出的「矩陣擴展法」灰度圖具有較小的誤碼率，對於20次列印-掃描實驗，誤碼率不大於0 . 0026 。
  4. This thesis described fuel management system theory and system reliability design to set forth system fuel management general design thought. many technical details are discussed in the thesis such as : fuel quantity measurement, fuel mass character calculation, fuel density measurement, the accuracy of fuel quantity measurement, the optimum location of fuel gauge probes in the fuel tank. the author brings forward a new method which is based on the software of catia to calculate fuel mass character

    本文對燃油管理系統的工作原理和可靠性設計等問題進行研究，以明晰燃油管理系統的總體設計思路；並對數字式燃油量測量、燃油質量特性計算、燃油密度測量、提高燃油量測量精度的措施、油箱油量傳感器安裝位置優化等具體技術展開研究；提出了一種基於catia軟體的燃油質量特性計算方法；論文最後探討了燃油管理系統的未來發展方向。
  5. The 9th power of the 9th power of 9, that, the result having been obtained, 33 closely printed volumes of 1000 pages each of innumerable quires and reams of india paper would have to be requisitioned in order to contain the complete tale of its printed integers of units, tens, hundreds, thousands, tens of thousands, hundreds of thousands, millions, tens of millions, hundreds of millions, billions, the nucleus of the nebula of every digit of every series containing succinctly the potentiality of being raised to the utmost kinetic elaboration of any power of any of its powers

    所得數字要用細字密密匝匝地印刷成三十三卷，每卷一千頁。為了統統印刷完畢，就需要購入無數刀無數令印度紙，整數值的位數便是一十百千萬十萬百萬千萬億十億，一切級數的一切數字作為星雲的核心，以簡明的形式所包含的累乘的可能性推到了極限地能動地開展的一切乘方的一切冪級數。
  6. On 9 tracks phase - encoded recorded magnetic tape for digital data storage, density 63 rpmm 1600 rpi

    數字數據存儲用9磁軌相位編碼的記錄磁帶.密度為63rpm
  7. On 9 tracks nonretorn to zero recorded magnetic tape for digital data storage, density 32 rpmm 800 rpi

    數字數據存儲用9磁軌的不歸零制記錄磁帶.位密度32位
  8. More important is that it can completely satisfy the new requirment as above said, and from a farsighted angle, such as future programming for digital city, power supply information would not exists alone, and by all means will be tightly combined with municipal foundational geography information and other public service information. cis technology can be used to provide correspondant means to realize such kind of universal flatform

    更重要的是gis技術完全可以滿足如上述城市配電管理提出的新需求，而且從長遠角度考慮，在諸如數字城市等未來的市政規劃中，供電信息將不會單獨存在，必然要與城市基礎地理信息以及其它公共服務信息緊密結合， gis技術能夠提供相應的技術手段來實現這樣的統一平臺。
  9. The signal process function of the software include these function : digital filter, windowing, auto - correlation function and cross - correlation function, mean and variance, probability density function and probability distribution function statistic ; auto - power spectrum, cross - power spectrum, frequency response function, coherence function, cepstrum analysis based on fft ( fast fourier transfer ) ; joint time - frequency analysis based on stft ( short - time fourier transfer )

    軟體的處理功能包括：數字濾波、時域加窗、自相關與互相關處理、均值和方差計算、概率密度和概率分佈函數計算；在快速傅立葉變換（ fft ）基礎上計算自功率譜、互功率譜、頻率響應函數、相干函數、倒頻譜分析；基於短時傅立葉變換（ stft ）的聯合時頻分析等。
  10. 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 。
  11. So, knbo3 is found to be one of the most important crystals for the generation of blue light research on the generation of blue lasers has become a focus because of its important applications and potential commercial value in many fields, such as high - density optical storage, numeric video - frequency technique, color - laser vision, laser typography, laser medicine and material science and so on

    而此藍光激光源在激光製冷、高密度光儲存、數字視頻技術、彩色激光顯示及激光印刷術、激光醫學、材料科學等許多領域都有著重要應用和潛在市場，所以對藍光激光源的研究也越來越廣泛和深入。
  12. Audio high density. system of digital audio recording on grooveless discs, employing an electronically - guided capacitance pickup

    音頻高密度。非凹槽唱片上的數字音頻錄音系統，採用一種電子導向的電容拾音器。
  13. Independent air hating system, oven with sealed round hole array with hot air curtain, automatic oven temperature detector and control, dro, application of second time reflex of heat energy and centralize waste discharge result in energy and cost saving

    獨立的熱風加熱系統，密閉式圓孔陣列風幕式熱風乾燥烘箱，烘箱溫度自動檢測控制、數字顯示，熱能二次迴流利用，集中排廢裝置，有效地降低能耗、節約成本。
  14. In the case of an open universe, the mass density ( denoted by the greek letter omega ) is less than unity, and the universe is predicted to expand forever

    在一開放的宇宙里，質量密度（以希臘字母歐米加表示）是小於平均數，且宇宙被預言永遠地膨脹下去。
  15. Measuring of weft knitted fabric ' s density by mears of digital image analyse

    利用數字圖像分析方法測定緯編針織物的密度
  16. Test method for density and relative density of liquids by digital density meter

    用數字式密度計測定液體密度和相對密度的方法
  17. In order to study the combustion process and the movement of propellant in the barrel, a multi - photo x - ray experiment system was designed. four groups of photos under different ignition systems were obtained, and these photos were manipulated with digital image manipulation technology. the gray degree of the photos was averaged, and the information, such as density, velocity of the projectile and the trace - indicating grains and confliction velocity of the propellant against the projectile under the consideration of the velocity of the projectile, was extracted and analyzed quantitatively

    本文就利用由多幅脈沖x光攝影技術所獲得的四種不同點火條件下的火炮膛內火藥顆粒群運動狀況的陰影照片，進一步利用數字圖像處理的技術及相關演算法，編制軟體對照片進行了處理，統一了照片的灰度，最終在定量上獲得了不同點火條件下的火藥顆粒的密度分佈規律、彈丸和示蹤藥粒的運動速度以及在考慮到彈丸運動的前提下的火藥顆粒與彈丸的撞擊速度。
  18. Collecting enough quantity and densities three - dimensional coordinates of characteristic points on the earth ' s surface with total station. seting up the digital elevation model ( dem ) with region manager

    應用全站儀在規劃區域的地表採集足夠數量和密度特徵點的三維坐標，在gis軟體regionmanager輔助下，建立流域數字高程模型（ dem ） 。
  19. The establishment of synchronous mechanism for the system is simply described, and the realization techniques for the system are studied. some results in this article will be a good choice in some extends for the way to solve the vital technical difficulties of practical chaotic digital communication

    本論文所取得的一些初步成果，在一定程度上解決了混沌數字保密通信實用化的關鍵技術難題，實現了在實際網路環境中混沌同步在數字保密通信中的應用。
  20. In the characteristic measurement of surface, a method of surface " s self - adoption - character measurement is adopted in the paper to achieve the distribution of data " s density. the formula of coordinate transformation is educed and the calculate process in data fitting is proposed

    對曲面的特徵測量，採用曲面的自適應特徵數字化方法解決采樣數據的密度分配問題，對有標準參考坐標下和在不同參考坐標下的多視拼合問題，導出了坐標變換的公式並提出了數據拼合的計算過程。
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