datum相关论文
According to the ISOGeometrical Product Specifications(GPS),datums and datum system for complex component are neither cl......
The necessity of establishing a Unified Isostatic Datum (UID) for studying the sea levelchanges along the coast of China......
The half life of Hafnium isotope 182Hf is very important for astro-physics because the occurrence time of some events in......
Relative sea level change can be derived from tide records. In order to study the general sea level change along the co......
Settlement Prediction for Buildings Surrounding Foundation Pits Based on a Stationary Auto-regressio
To ensure the safety of buildings surrounding foundation pits, a study was made on a settlement monitoring and trend pre......
Correction method for non-landing measuring of vehicle-mounted theodolite based on static datum conv
During the non-landing measuring of vehicle mounted theodolite, especially under high-speed tracking measurement, the mi......
Numerical and Experimental Investigation on Aerodynamic Performance of Small Axial Flow Fan with Hol
To reduce the influence of adverse flow conditions at the fan hub and improve fan aerodynamic performance,a modification......
It is of great importance to improve the chlorine-resistanee and flux of the reverseosmosis composite membranes at pres......
Analysis of datum-instability effect on calculated results of data from Longmen Mountain regional gr
A statistical correlation method is used to study the effect of instability of the calculation datum ( used in tradition......
FABRICATION OF PIEZOELECTRIC BIMORPH USING LEAD ZIRCONATE TITANATE THIN FILM DEPOSITED BY HYDROTHERM
In order to describe the characteristics of piezoelectric bimorph,properties of lead zirconate titanate (LZT) film are s......
Optimization of Extraction Process of Flavonoids from HERBA PHYLLANTHI URINARIAE by Response Surface
[Objective] To optimize the extraction process of flavonoids from HERBA PHYLLANTHI URINARIAE by response surface methodo......
Hyperspectral datum classification using kernel method based on mutual information of neighbor bands
Under the framework of support vector machines,this paper proposes a new kernel method based on neighbor bands mutual in......
The establishment and realization of the VPP calucation’s model for the functional analytic theory are discussed in thi......
“N-2-1” principle is widely recognized in the fixture design for deformable sheet metal workpieces, where N, the loca......
Detailed radiolarian biostratigraphy in the Plio-Pleistocene was analyzed by using samples from IODP Site U1340 that was......
The mechanism for heat transfer of radiation is usually adopted to heat strip in vertical continuous annealing furnace. ......
The cross section of the (n,α) reaction is very important for fusion reactor for monitoring neutron field in the conte......
Introduction Nickel is a very important structure material in nuclear engineering. The neutron activation cross section......
Introduction The cross section measurements in neutron energy range from 6 to 12 MeV for the reactions with low thresho......
Introduction ~(39)K(n,α)~(36)Cl reaction data are important in nuclear engineering, nuclear medicine, astrophysics as ......
The amplitude and the stability of the Dee voltage are very important for the beam quality of the cyclotron. After the u......
As an important subject of research on safety technology of nuclear fuel cycle program,temperature efficiency and bubble......
Vertical errors often present in multibeam swath bathymetric data. They are mainly sourced by sound refraction, internal......
A method to test the stability of high lead glass CEM is given and some results are obtained,The life-test datum with a......
Efficient visualization techniques for high resolution remotely sensed data in a network environment
There are three major research hotspots in efficient visualization techniques of high resolution remotely sensed data in......
The physical datum method that uses the laser beam as the physical datum is proposed.A high accuracy of the straight mov......
Application of phase space reconstruction and v-SVR algorithm in predicting displacement of undergro
A new method for predicting the trend of displacement evolution of surroundingrock was presented in this paper.Accordin......
We propose the design of an observation station to establish a reliable datum for displacement and deformation analysis ......
Investigation on the threshold control of safety blasting vibration velocity for the extraction of c
The threshold control of safety blasting vibration velocity is a significant process for the underground mining of compl......
The combined adjustment project of the nationwide astronomical geodetic networks and 2000 ' national GPS control network......
建筑工程质量控制资料是工程质量评价、评估、评优的重要资料，是证明质量控制过程、结果符合相关要求的法定资料，其重要性不言而喻。......
高等教育大众化、高校管理体制改革、知识经济及终身学习理念的引入为高校院系专业资料室提供了新的发展契机.以此为背景,通过分析......
本文对翻车机系统存在的问题进行了系统的阐述,分析了产生问题的原因,制定了行之有效的解决方案,成功处理了翻车机长期存在的隐患......
某型号红外热像仪主体框架设计成分体形式,其机械加工工艺需考虑零件自身精度、装配精度及拆装后的重复精度。通过对产品的透彻分......
结合航空发动机设计图样标准化检查的实际情况,针对基准、表面及其应用和尺寸标注2类典型标准化问题,对不同的图样标注形式进行了......
在复杂地表区的资料处理中，地表起伏给静校正、速度分析、时深转换和深度偏移等带来了诸多困难。本文就基准面问题提出了一些解决方......
确定基准是研究地壳垂直运动的重要内容之一。在讨论均衡基准特点的同时 ,指出了其在研究我国大陆现今地壳垂直运动中可能带来的不......
军事网格参考系统（MGRS）是基于通用横墨卡托（UTM）投影面上或通用极球面（UPS）投影面上，附加在美军地图上的两组分别平行于投影坐标轴且垂直......
大尺度、高精度GPS定位中，如何引入基准信息，以及不同的基准信息对参数估计结果的影响是值得探讨的问题。本文利用GAMIT／GLOBK软件，分......
平时使用MP3随身听，对可持续播放能力总是特别关心。使用内置电池吧，一旦外出时电力耗尽，寻找充电器电源是相当痛苦的事情；使用碱性电......
为解决在城市进行地面沉降水准测量时所遇到的各期观测基准不统一、周期监测网形不一致以及基准点不稳定的问题,对地面沉降水准监......
计算机技术的发展，特别是网络技术的飞速发展，使得ＧＩＳ进入到一个窒新的发展阶段，即多源ＧＩＳ数据的共享和应用。这里的多源性包括两方面的内容......
本文分析了机械设计图样中回转类零件基准标注的三种形式.得出了以装轴承的两轴颈(或孔)的公共轴线为基准最好.应用数学推导法证明......
<正> 韩国电子产品巨头JNC旗下的第二品牌DATUM,携经典MP3产品MH-228首次登陆中国内地市场。DATUM MH228MP3有着出色的外观,冰蓝色......
准噶尔盆地南缘冲断带地区的地震资料长期以来由于基准面、填充速度不统一，存在地震解释层位不闭合，新、老资料难以统一使用的问题，各......
