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数据库     
相关语句
  database
    A Syudy on Ecm Database of Operating Parameter and Basic Process Law of Ecm
    电解加工工艺参数数据库及电解加工基本工艺规律研究
短句来源
    The Development of Metallic Materiral Atmospheric Corrosion Database
    金属材料大气腐蚀数据库
短句来源
    Development of Application Softwares of Atmospheric Corrosion Database for Materials
    材料大气腐蚀数据库应用软件的研制
短句来源
    Design of Machinability Database System
    金属切削数据库系统的设计
短句来源
    DESIGNING A CORROSION DATABASE
    腐蚀数据库的设计
短句来源
更多       
  data base
    A Syudy on Ecm Database of Operating Parameter and Basic Process Law of Ecm
    电解加工工艺参数数据库及电解加工基本工艺规律研究
短句来源
    The Development of Metallic Materiral Atmospheric Corrosion Database
    金属材料大气腐蚀数据库
短句来源
    Development of Application Softwares of Atmospheric Corrosion Database for Materials
    材料大气腐蚀数据库应用软件的研制
短句来源
    Design of Machinability Database System
    金属切削数据库系统的设计
短句来源
    DESIGNING A CORROSION DATABASE
    腐蚀数据库的设计
短句来源
更多       
  data libraries
    To obtain a standard scheme for groove design and parameters selection without the related bead geometry stored in the data libraries.
    数据库中未存储相关的焊道尺寸时,可能提供一个关于坡口设计及规范选择的标准施工方案。
短句来源
  data library
    Study of Mold Data Library and Dynamic Simulation and Polishng
    模具数据库、动态仿真及抛光的研究
短句来源
    In this paper two contents are studied: the data library of mold standard parts, dynamic simulation of the punching process and the mold’s mechanical-electrolytic polishing.
    本文进行了模具标准件数据库、冲压过程动态仿真和模具的机械电解复合抛光技术两方面内容的研究。
短句来源
    Study of the data library of mold standard parts and dynamic simulation of the punching processAiming at the complexity of mold structure、the interference between every motional parts, and a lot of standard parts to be needed during mold designing, and the CATIA software is used in a big part of airplane and automobile enterprises.
    模具标准件数据库和冲压过程动态仿真的研究针对模具的结构复杂性、各个运动零件之间的易干涉性,以及模具设计中需要用到大量的标准件;
短句来源
    In this paper the method of three-dimension parameterization is studied and the parameterized data library of mold standard parts by using VB6.0 developed language based on the secondary development platform-CATIA V5 is developed. The system manages the parameterized data and model drawings adopted data library.
    本文探讨了三维参数化的方法,以CATIA V5软件为二次开发平台,利用VB6.0开发语言,采用数据库管理参数化数据和模型图,开发了模具参数化标准件数据库,实现了三维标准件的自动生成。
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  database
As the database size becomes larger and larger, a better way is to mine fuzzy association rules in parallel.
      
Experimental results on Coil-100 object database, which consists of 7200 images of 100 objects, are presented.
      
It uses matching algorithms to find a match between questions and sentences stored in a database.
      
It also extracts answers from a frequently asked questions (FAQ) database by finding matching or similar sentences.
      
Then the aspect ratio and multi-density features were extracted from the text area to select the best candidates from the document image database.
      
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  data base
The research activities were focused on HPPA physics and technology, reactor physics of external source driven sub-critical assembly, nuclear data base and material study.
      
The simulation involves the use of a data base for rate constants of chemical reactions, which includes processes in view of electronically excited components OH*(2Σ+), O*(1D), and O*2(1Δ).
      
The object information model functions on the basis of a parametric description supported by the SQLite Data Base Management System.
      
The system compiles the data base on translation signals including nucleotide sequences of the regulatory regions with structural and experimental information on their specific activities.
      
The putative product of CTR1 (SLC31A1 according to the Entrez data base) is regarded as the main candidate for an eukaryotic transmembrane copper importer.
      
更多          
  data libraries
The numerical calculations were performed using the LAHET code package together with the EXFOR database and the evaluated data libraries MENDL2N, MENDL2P, and IEAF2001.
      
The ISF1 gene has been independently isolated as the MBR3 gene and comparison of the ISF1 predicted protein sequence with data libraries revealed a significant similarity with the MBRI yeast protein.
      
The development of the commercial critical reactors of today motivated a large effort on nuclear data up to about 20 MeV, and presently several million data points can be found in various data libraries.
      
Homology search of nucleotide sequence data libraries revealed similarities of the SSR motif to partition functions of low copy number plasmids.
      
The IAEA provides convenient access to the most comprehensive collection of nuclear data libraries worldwide, many of them highly relevant to radiochemical applications.
      
更多          
  data library
Numerical values of model parameters are determined by comparing results obtained with experimental data for hydrogen and alkali metals taken from the NIST Atomic Spectra Database Levels Data library.
      
Simulation results for Euclidean Traveling Salesman Problems taken from the data library TSPLIB [11] indicate that this multivalued neural approach is superior to the best neural network currently reported for this problem.
      
IS112The accession number from the EMBL Data Library is X56644 is a transposable element identified in Streptomyces albus G by its frequent mutagenic insertion into the genes for the SalI restriction-modification system.
      
The nucleotide sequenceThese sequence data will appear in the EMBL Sequence Data Library under the accession number Y07525 of the gene cysH from Escherichia coli K12 was determined.
      
These data sets have been registered to AISM Data Library and the readers of this Journal can access to them by the method described in this issue.
      
更多          
  其他


An effort was made in the fields of setting up the metallurgical process modules and the process system simulation programs which include: general principles and examples of metallurgical process simulation; the dynamic simulation of chemical metallurgical processes and inorganic thermochemical data base and its applications in metallurgical process simulation.

本文介绍建立冶金单元过程和系统模化过程的系统努力结果。其中包括:1.冶金过程模化的基本原理;2.化学冶金过程的动力学模化;3.冶金过程模化中所需的无机热化学数据库(ITDB)及其使用方法。

Recentl man metallurgists heve been working with steel refining by using maganesium as deoxidizer and desflfurizer which also leads to better morphology of nonmetallic inclusions. That it might be very difficult to add maganesium in was the reason for the previous works to fail. The trouble is that the partial pressure of maganesium is very high at the melting temperatures and at the same time its solubility in the liquid steel is rather small. In this article, the effect of injecting Mg-powder on deoxidation...

Recentl man metallurgists heve been working with steel refining by using maganesium as deoxidizer and desflfurizer which also leads to better morphology of nonmetallic inclusions. That it might be very difficult to add maganesium in was the reason for the previous works to fail. The trouble is that the partial pressure of maganesium is very high at the melting temperatures and at the same time its solubility in the liquid steel is rather small. In this article, the effect of injecting Mg-powder on deoxidation and desulfurization by using Ar-gas as carrier based on thermcdynamic data stove in Aachen university and the effects of the pressure and flow of Ar-gas on the technology mentioned above have been calculated. The effective injecting technology was determined experimeutally and the appropriate controlling parameters were chosen.Maganesium can be successfully insected into the liquid steel at 0.1-0.3NL/min of Ar-gas flow under 1-3 atm. The oxygen content was decreased to 4ppm in the liquid steel to be refined. The sulfur content 10ppm. The graduation of oxides and sulfides was 0-grade. This sizes are less than 5μm. Mg-oxides and sulfides in the inclusions were increased with the increase of amount of injecting maganesium. However the total amount of inclusions were decreased and the shape appears as sphere. The inclusions remain unchanged shape during hot deformation. The anisotropic characteristic which usually exists in materials disappeared completely especially the notch - impact toughness at the transverse direction was increased by 2-3 times. The impact toughness at the different temperatures the transition temperatures and the inclusion shapes on the fractures for the materials to be refine 1 were also discussed.

由于镁对钢的脱氧、脱硫、净化钢水及转变夹杂物形态的良好作用,近年来许多冶金工作者致力于加镁精炼钢水的研究工作,但因在冶金温度下镁的蒸汽压很高,而其在钢水的溶解度又极小,加入困难,这方面的研究多归于失败。本文利用阿亨大学热力学数据库计算了以氩作为载气喷镁的脱氧、脱硫作用,以及压力和氩量对其影响,通过实验制定了行之有效的喷吹工艺,选择了合适的控制参数。 在1-3大压下,氩量为0.1-0.3N.L/m:n,可以向钢水成功地喷入镁。经过镁精炼的钢水,氧含量可降至4ppm,硫含量降至10ppm,氧化物及硫化物的评级均为0级,其尺寸均在5μm之下。随着喷镁量的增加(钢水重量的0.062至%0.56%),夹杂物中镁的氧化物及硫化物量增加,夹杂物总量减少且呈球形,此种夹杂物在热形变中不变形。因此在通常材料中所存在的各向异性完全消失,特别是缺口冲击韧性横向性能值提高了2~3倍。文章对材料在不同温度下的冲击韧性、过渡温度及断口夹杂物的形态进行了研究和论述。

The firstly designed X-ray phase identification index method by computer automatic search match is presented in this paper. The difference between this method and powder diffraction file (PDF) by computer is how to set up a file, the latter using PDF data and the former using computer calculating index phase list. Utilizing this method we can realize auto search match of the precipited phase in steel and alloy whose lattice parameter changs greatly; while the other method would give too much missing or wrong...

The firstly designed X-ray phase identification index method by computer automatic search match is presented in this paper. The difference between this method and powder diffraction file (PDF) by computer is how to set up a file, the latter using PDF data and the former using computer calculating index phase list. Utilizing this method we can realize auto search match of the precipited phase in steel and alloy whose lattice parameter changs greatly; while the other method would give too much missing or wrong identification.

本文介绍了作者首次设计的X射线物相鉴定指数化定相的电子计算机检索方法。此方法与别的粉末衍射卡电子计算机自动检索方法的根本不同点在于数据库的建立。后者是用PDF(标准粉末衍射卡)的数据来建库,本方法则是利用计算机自动计算出来的数据建库的。利用本方法可对点阵常数经常发生显著变化的钢和合金中的析出相进行快速准确的自动检索,而用其他方法来检索析出相则会出现漏检或大量误检。通过面间距d值的转换使得它在整个取值范围内误差保恒定,本文对于这点也进行了较为详细的分析。

 
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