Updating the gis by the traditional method is to input the data by hand and needs practical surveying to get the geographical information . this approach consumes too much time and produces little effect, so gis can not be updated in time 在对gis系统的数据更新过程中,如果遥感分类提供的地理信息精度不高,那么用遥感数据来更新gis数据就失去了意义。
Secondly, combining practical survey method and time-resistance mathematic model, the author obtained average time distance from every time-cell to fictitious time center, isotime curve figure ( by arc view 3d analyze ) and temporal shape 然后利用实际测量法和理论公式法计算出深圳特区各时间单元的平均时间距离,并用arcview中的3d分析模块自动生成等时线图。
Two practical survey data sets are used as a case study to verify the efficiency and reliability of the compensation method . the results show that the precision of the compensated network has been increased from 2.74mgal to 7.11magal . 4 平差结果表明三种平差模型均对测线系统误差进行了有效的补偿,补偿后的精度提高了2.747.11毫伽,而且,对补偿后的测线网进行测线系统误差显著性检验,检验结果显示测线系统误差的影响已不再显著。
This dissertation explicates, based on practical survey, the managing scale, runing way, and economic benefit of qinghai noodle restaurant in shenzhen city, analyzes its potential of further development and existant problems, and put forward some suggestions and countermeasures to it 摘要本文在实地调查的基础上,阐述了在深圳的青海拉面馆的经营规模、经营方式、经济效益,分析了青海拉面馆在深圳进一步发展的潜力和存在的问题,提出了一些建议和对策。
We have discussed in turn the importance of web-based interaction, the definition and category of web-based instruction interaction, the interaction theory of web-based instruction, and put forward in particular four kinds of web-based interaction designs, such as question-enlightened, model-enlightened, experiment-researching and collaboration-discussion with practical surveys 本文依次阐述了网络交互的重要性、网络教学交互的定义和范畴、网络教学交互设计理论,结合实际调查研究提出四种网络教学交互设计:问题引导式、模板引导式、试验探究式和协作讨论式交互设计。
Then on the basis of calculating result from the prefigurative deviation control structure calculation, " rational data forecast processing about error adjust in prefigurative deviation control was made by the prefigurative theory of bp neural network and corresponding program and software matlab6.1 . at last via the data comparison with the practical survey data draw a conclusion : it is feasible for the construction prefigurative deviation control and error adjust used in pc rigid frame bridges to use the calculation model and program brought forward in this paper 同时,在对预应力混凝土刚构桥施工过程线形预拱度控制的结构计算分析的基础上,利用bp神经网络的预测理论和相应的程序及软件包matlab6.1对预拱度控制中的误差调整进行了较好的预测处理,通过与实际施工数据及成桥后测量结果作分析比较,得到结论:运用本论文的计算模型和程序对预应力混凝土刚构桥预拱度控制过程进武汉理工大学硕士学位论文行结构分析和误差调整处理是可行。
To solve real problem aiming at real environment, i have chosen a pint-sized supply chain composed of two sticking points as my research samples, investigating two companies to find out the crux in their actual supply chain operation . chapter 6 and 7 state effective solutions of lean supply chain strategy basing on these practical surveys 要成功地实施敏捷供应链管理,使供应链管理真正成为有竞争力的武器,就要抛弃传统的管理思想,把企业内部以及节点企业之间的各种业务看作一个整体功能过程,形成集成化供应链管理体系。
By choosing 358 junior school teachers in 10 rural schools in five towns as the independent sample; adopting the " scl-90 symptom measure form " and the self-made " invetigation paper on teacher'mental health reason " as survey tools; using the three methods-measurement, investigation and interview in an integrated way, the aothor made a practical survey to the mental health conditions of the teachers in rural junior schools in zhangye district 本研究选择了张掖地区所辖的五县市共10所农村初中的358名教师作为独立样本,采用“scl?90症状测评量表”和自编的“教师心理健康成因的调查问卷”为研究工具,将测验、调查、访谈三种方法相结合,对张掖地区农村初中教师心理健康状况进行了实证研究。
Taking hefei as an example, by the means of data analysis and investigation through questionnaires and practical survey, the author analyzes the present condition and the problem in the scientific and technological intermediary service system, and proposes the measures and proposes of building the scientific and technological intermediary service system of hefei 并以合肥为例,采取数据分析、问卷调查和实地调研等方式对合肥市科技中介服务发展状况和存在的问题进行了较全面的调查分析,提出了建设合肥市科技中介服务体系的对策和建议。
On some reasonable assumptions, the existence and the uniqueness of the solution of partial differential equation are proved by using the semigroup theory; then based on the current basin temperature from the practical survey, the mathematical model about the identification problem is established, and the identifiability and the existence of the optimal solution of the identification problem are proved; in terms of the adjoint method presented by chavent, the optimality condition of the identification problem is given; finally the corresponding algorithm is devised 在适当的假设条件下,利用算子半群方法证明古地温度场方程解的存在惟一性;根据现今实测温度,建立了问题的参数识别模型;证明了可识别性、最优解的存在性;利用chavent等人提出的伴随方法,给出参数识别问题最优解存在的最优性条件和求该参数识别问题的算法。