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1.
More and more reconstruction events happened in China, it becomes a hot point. Lots of literatures are about reconstruction theory, reconstruction motives, reconstruction modes, reconstruction performance, but no one is a bout the relation between reconstruction motives and its performance. This paper takes those companies in Shenzhen Exchange reconstructed in 1999 as study samples, groups them on its reconstruction motive and analyzes their reconstruction performance by financial data before and after reconstruction. It is pointed out that the relation between reconstruction motives and performance.  相似文献   

2.
对山西省太谷县的3个典型自然村进行分析,其中郝村属于农业部在山西省确立的惟一新农村建设示范村,小王堡村和董村是省、市政府确定的典型的新农村建设试点村,他们在新农村建设模式的选择方面,都立足地方经济,发挥区域优势,彰显自身特色,以发展现代农业为核心,在引领新农村建设方面,具有重要的示范意义和推广价值。  相似文献   

3.
Surface reconstruction is reproduction process of geometric topology information and feature bases on surface practicality model. The quality of surface reconstruction directly influences performance of production, analysis and manufacture. To improve quality of design and meet requirement of fair, precision, it's researched by the numbers the geometric modeling and constraint of surface reconstruction. Feature-based surface model reconstruction technique is discussed in this article. Combine with 3D model design of motor body covering, an engineering application is given finally.  相似文献   

4.
Based on the current development of industrial building reconstruction with function of manufacturing facilities, in this paper, the authors emphasize the importance of this kind of reconstruction, explore the detailed reconstruction means and analyze the relevant comprehensive affecting elements, at the end, the relevant general design principles are put forward.  相似文献   

5.
尹健 《中国农学通报》2020,36(2):160-164
在搭建乡村振兴战略视野下的文化转型理论框架基础上,进行乡村文化现代性重塑问题分析,探索乡村文化的现代性重塑路径。通过分析乡村文化现代性重塑的内在契合逻辑,分析乡村文化现代性重塑的必要性和紧迫性,按照明晰主体、确定目标、探索路径的逻辑思路,建立起符合中国国情且具有操作性的意识形态共识、制度安排、政策实施和治理运行的乡村文化自信重塑策略体系;明确“现代乡民”是乡村文化重塑的主体,通过增强文化认同、培育“现代乡民”、文化创新与文化整合并重等方式,达成文化自信。  相似文献   

6.
On the base of the fairing of free-form surface reconstruction from 3D data points, this paper probes one method based on shape constraints. By making physical model as objective function and using geometric constraints, free form surface reconstruction is realized based on the idea of energy optimization. This method is not only beneficial to the connection of the reconstruction surface and CAD/CAM system, but also to the integration of design, manufacturing and inspection.  相似文献   

7.
Through a historical review of China old city reconstruction and practices in cityplanning,this paper presents six basic problems in old city reconstruction.  相似文献   

8.
灾区农民心理对农业重建的影响及对策   总被引:1,自引:0,他引:1  
毛建 《中国农学通报》2009,25(20):351-353
摘要: 作者根据一年来在地震灾区的农业重建和新品种、新技术推广工作体会,以及对广大村民认真的分类调查研究,归纳出当前农村尤其是灾区农民的社会心理状态对农业重建和新品种、新技术推广的影响 ,并提出相应的对策和措施。这对于今后在广大农村,特别是在灾区从事农业重建及农技推广工作的社会机构和人员,有一定的参考价值。  相似文献   

9.
A cross-plane electrical impedance tomography system is constructed to solve the problem of the conventional planar electrode array. This system consists of four planar and eight axial cross imaging planes composing from 65 electrodes. The Tikhonov regularization algorithm is adopted for image reconstruction in simulation and flume experiment. Comparison between the reconstruction result and the original object shows that the cross-plane reconstruction method in three-dimensional space provides higher spatial resolution and position accuracy. In addition, it effectively reduces the amount of computation, and reveals great prospect for the application of clinical examination and monitoring.  相似文献   

10.
The management of urban reconstruction is a process of game between the government and developers.It is helpful that the interest and its equilibrium for the relative parties involved in the reconstruction process are considered during the formation of government policy.This paper analyzes the environment for the policy constitution and establishes a model for strategy making based on the game theory.This model provides a basic foundation to improve the management ability of the government in the reconstruction process.Finally,in this paper some strategic issues are suggested to cope with the challenges from urban reconstruction in China.  相似文献   

11.
Regeneration -degree is the reflection of rationality in urban regeneration, which contains the degree of preserving the current situation and the achieved degree after regeneration. By analyzing unreasonable degree in the urban reconstruction, discussing the renewal elementary theory about regeneration -degree, it is intended to get reasonable degree and enhance the rationality in the urban reconstruction.  相似文献   

12.
Following the rapid development of the revolutions in housing system,reconstruction of old buildings is rising.In order to make the reconstruction proceed smoothly,in this paper the author studies the secondary parts,reinforcing foundation,dismantlement of some parts of an old building,linkage of new and old frames,solutions for the four relationships,and others.  相似文献   

13.
根据陕北黄土高原的自然生态环境,果树生产现状和果树分区原则,将该区果树生产划分为北部神府海红果产区,毛乌素沙地酿酒、制汁葡萄产区,横山、白于山山区山杏、山桃产区,延河中下游商品苹果、梨产区,黄河沿岸优质红枣产区,中部、南部多种果树产区,洛川塬优质苹果产区7个区域,提出各区果树发展的主要方向、规模和发展措施。  相似文献   

14.
本文通过对已有的农民工社会网络研究成果的综述,总结出农民工社会网络研究的三种传统,即结构制约研究传统、个体利用和再建构研究传统和面向实践的研究传统。前两种传统虽然对立却都是源于结构与个体的二元划分范式,关注静态的逻辑和理论的逻辑。第三种传统与他们完全不同,面向运行实践的研究传统通过对农民工社会网络实际运作过程的描述和分析,把农民工社会网络视为在具体实践过程中不断生产的动态的流动的社会事实,联系实践的微观本土环境,在描述过程的基础上解释农民工社会网络的运行逻辑。本文认为,农民工社会网络以及整个农民工社会现象是一个在中国转型过程中产生的极具实践感的动态的社会事实。与前两种研究传统比较,第三种研究传统显然适合对这一对象的研究也更有希望提出更有解释力的理论。  相似文献   

15.
Based on the reconstruction of interface variables with the fifth-order WENO, a high resolution scheme is proposed and the performance of capturing dam break waves is analyzed. With the part is linearized through Roe average, one dimensional shallow water equation is directly and decoupled solved, the velocity distribution and depth distribution are obtained. Numerical simulation shows that the decoupled schemes with WENO5 reconstruction has higher resolution and it shows the movement of dam-break.  相似文献   

16.
According to the drainage problems emerging from the several torrential rainstorm in domestic coastal cities in the last two years, especially the issues that the drainage and waterlogging prevention of coastal cities are susceptible to the tide level of open seas, this paper took the reconstruction of Yingping District in Xiamen, a typical coastal area, as a case study, analyzed the main waterlogging causes of the district under the influences of the average annual tide level and storm tide caused by typhoon with the application of drainage model, and came up with reasonable implementation strategies for reconstruction;besides, this paper also assessed and divided the waterlogging risks of the district under the influences of storm tide and applied engineering measures as well as non-engineering measures to prevent the urban cities from water-logging hazards. It is expected that the study would provide reference for the reconstruction of coastal cities in drainage and water-logging prevention.  相似文献   

17.
联合局部和全局稀疏表示的磁共振图像重建方法   总被引:1,自引:0,他引:1  
针对在压缩传感中独立使用全局或局部稀疏字典所分别导致的图像细节或整体图像结构信息的丢失,提出了一种联合利用局部和全局稀疏约束来捕捉磁共振图像细节和整体结构信息的磁共振图像重建算法。该算法首先从特定的磁共振图像中训练出稀疏字典,然后利用该字典进行局部稀疏编码。其次,利用预定义的全局字典来加强磁共振图像的全局稀疏性。最后,在局部和全局稀疏的共同约束下,利用非线性共轭梯度算法来对重建模型进行求解。整个重建过程可以重复迭代以逐步改善重建质量。实验结果表明:当下采样因子达到10时,相比于字典学习算法(dictionary learning MRI,DLMRI),提出的算法在重建质量上可以提高1-6 dB。  相似文献   

18.
王立华 《中国农学通报》2011,27(25):307-311
由于长期开采花岗岩建筑石材,“2014年青岛世园会”百果山园区的花岗岩丘陵上遗留有6处开采石材形成的岩石崖壁。在园区建设过程中,将这6处岩石崖壁分为坡度70°以下的岩石崖壁和坡度70°以上的岩石崖壁2类,并遵循可行性原则、地域性原则和美学原则,分别提出了2类岩石崖壁景观的生态恢复与重建措施。其中,坡度70°以下的岩石崖壁可采取底层采石坑回填、“钻孔植绿”与“筑巢复绿”等措施进行生态恢复与重建;坡度70°以上的岩石崖壁可采取布鲁特罩面网垂直绿化技术、人工植生槽与顶部筑营养槽相结合,建造人工流水景观,建造人造雾喷景观,融入雕塑艺术等措施进行生态恢复与重建。  相似文献   

19.
Structure security is the most main structural reliability, at the request of active service in time to make a frame structure security assessment, in safe premise to prolong the service life, and has a certain social significance and economic benefits. Combining with the actual situation reconstruction projects, using the theory analysis frame structure of the active safety, the finite element SAP2000 on the original structure and rebuilt structure modal analysis, the effect of the structure security index that contrast reconstruction of the frame structure than the frame structure of the security it can improve.  相似文献   

20.
In this paper, the historical reasons of formation of the village inside the city are analyzed. It is indicated that such situation for the villages inside the city are the result of joint action of both the villagers and the government. The foundation of villages inside the city laid on the simple compensation for farmers in confiscating the rural land and lack of intelligence aids. In this paper, the ideas and measures for their reconstruction are put forward based on consideration of the reasons of their formation and difficulties in the reconstruction.  相似文献   

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