two-dimensional code 中文意思是什麼

two-dimensional code 解釋
二維碼
  • two : n. （pl. twos）1. 兩人；兩個東西，一對。2. 二的記號。3. 兩點鐘。4. 兩歲。n. -ness
  • dimensional : adj. 1. 尺寸的。2. 空間的。3. 【數學】因次的；…次（元）的。
  • code : n 1 法典；法規。2 規則，準則；（社會、階級等的）慣例，習俗，制度。3 （電）碼，代碼，密碼，暗碼；...
  1. 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 。
  2. In this article, physical equations and relative three - dimensional finite - difference formulae in cylindrical and spherical geometries were derived and two - and three - dimensional code in cylindrical and spherical geometries for direct - drive by laser was made, based on the lared - s code in planar geometry. it consisted of the processes such as the inverse bremsstrahlung absorption, electic heat conduction and fluid dynamics

    本論文在lared - s程序平面版本基礎上，推導了三維柱和球幾何中激光驅動的物理方程和相應的差分方程，編制了二維和三維柱和球幾何中激光驅動流體不穩定性的lared - s程序版本，主要物理過程包括：激光逆軔致吸收、電子熱傳導和流體運動。
  3. Secondly, nonlinear threshold of two - dimensional rt instability was analyzed in planar and cylindrical and spherical geometries. density amplitude was defined relating to instable interface and formulae of nonlinear threshold values for rt instability in three geometries were given, then the lared - s code was used to simulate two - dimensional rt instability in three geometries and simulation results agreed well with the formulae

    其次，討論了二維平面、柱和球幾何中rt不穩定性發生非線性偏離的閾值問題，給出了三種幾何中密度擾動振幅的非線性閉值公式，並且用lared一s程序進行了檢驗，計算結果表明柱和球幾何中的模藕合機制與平面幾何不同，存在幾何效應的影響。
  4. Extracting and matching two - dimensional digital image contours based on freeman chain code

    鏈碼二維圖像輪廓的提取與匹配
  5. Narrowband watermarking information is spread into wideband pseudo - random code before being embedded by modifying the scale of the distance between vertexes in two - dimensional engineering graphics

    該方案先將待嵌入的窄頻帶的浮水印信號擴頻為寬頻帶的偽隨機序列，然後再以偽隨機序列為依據對二維工程圖中直線實體的長度作相應的修改。
  6. This paper is mainly considered : 1 ) how joint coded modulation transmitter is designed based on the iterative decoder. 2 ) the combination of ldpc code with bit - interleaved coded modulaton. 3 ) the optimization of two dimensional signal constellations in joint coded modulation with iterative decoder

    本文研究工作的重點在於: 1 ）迭代譯碼對聯合編碼調制方案設計的影響; 2 ）新的糾錯編碼和比特交織編碼調制的有機結合; 3 ）高階星座的最優化問題。
  7. Information technology - automatic identification and data capture techniques - bar code print quality test specification - two - dimensional symbols

    信息技術.自動識別和數據捕獲技術.條形碼列印質量試驗規范.二維符號
  8. With introduction of pseudo compressibility, two - dimensional euler equations are derived. referring to compressible method, central finite volume scheme is employed to develop a computational code

    參照可壓縮流動計算的中心格式有限體積法完成了擬壓縮方法二維定常不可壓euler方程的推導和流動計算程序的編寫。
  9. Information technology - automatic identification and data capture techniques - bar code print quality test specification - two - dimensional symbols iso iec 15415 : 2004 ; english version en iso iec 15415 : 2005

    信息技術.自動識別和數據捕獲技術.條形碼印刷質量試
  10. Two dimensional bar code in medicine trade logistic management system

    二維條碼技術在醫藥行業物流管理系統中的應用
  11. Construction of two - dimensional ocdma address code and its encoder decoder

    一種二維光cdma地址碼的構造及實現方法
  12. On this basis, the applications of fem computer code pdss in consolidation and settlement analyses are illustrated by comparing the fem results with the analytical ones for one or two dimensional consolidation problems

    在此基礎上，著重介紹了有限元程序pdss在復合地基固結分析和沉降計算中的應用。通過對一維固結問題和平面固結問題的pdss解和解析解的分析比較，驗證了pdss程序的正確性。
  13. In order to solve the problem of limited information capacity of bar code, a new type of bar code, two - dimensional bar code, has been developed

    為了解決條碼信息容量有限的問題，近年來出現一種新的條碼? ?二維條碼。
  14. Material handling - labeling and direct product marking with linear bar code and two - dimensional symbols

    材料運輸.用線型條碼和二維符號進行標簽和產品直接標記
  15. Based on the shale code, the early code of ale, the two dimensional finite difference elastic - plastic flow code hepale has been developed, in which the ideal elastic - plastic model and equation of state of gruneisen are used to describe the solid material, the programmed burn technique is used to simulate the propagation of detonation, and the equation of state of jwl is used to describe the detonation products

    藉助于ale方法的早期程序shale的基本框架，開發研製了二維彈塑性流ale方法計算程序hepale 。程序包含用彈塑性本構模型和gr nrisen狀態方程來描述固體材料的行為；採用jwl狀態方程來描述爆轟產物的性質；採用程序燃燒法來模擬爆轟波陣面的傳播。
  16. To compare with great deal of experimental data, the results show the improved method could be used as a generalized design methodology of film cooling for turbine blade. predictions of span - wise averaged effectiveness are made with a two - dimensional boundary layer code using the low reynolds number k - two - equation turbulent model

    研究並發展了用低雷諾數k -紊流模型為基礎的氣膜冷卻計算方法，將前人針對平板提出的摻混模型推廣應用於渦輪葉片型面，得到了與實驗數據符合良好的結果。
  17. Research to date suggests that sense and antisense peptides coded for by mutually complementary nucleic acid sequences are capable of interacting specifically, thereby suggesting the existence of a second, two - dimensional genetic code ( i. e., proteomic code )

    研究表明由互補的核酸序列編碼的有義肽和反義肽之間存在特殊的相互作用，由此就提出了有第二套二維的遺傳密碼即蛋白密碼的存在。
  18. The information criterion for two - dimensional bar code for confidential documents of public security agencies

    公安機關機要信件二維條碼信息表示規范
  19. Two dimensional symbol - qr code - basic specification

    二維符號. qr編碼.基本規范
  20. We developed a 2d3v ( two dimensional in space and three dimensional in velocity ) particle - in - cell code apic2d. in this code, we improved some algorithms of particle simulation as following : 1. an advanced borris rotation method is proposed to solve the relativistic lorentz equation

    為了研究激光等離子體相互作用中復雜的非線性過程，本文研製了2d3v （空間二維，速度三維）直角坐標相對論全電磁粒子模擬程序apic2d （ advancedparticle - in - cell2d ） 。
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