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Search Results: 1 - 10 of 10544 matches for " Zhaotang Ding "
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Prediction of Suitable Harvest Time in Aquaculture  [PDF]
Zhaotang Shang, Lin Cheng, Mengsen Luo, Lang He, Zhigang Lu
Natural Resources (NR) , 2013, DOI: 10.4236/nr.2013.42024

A model is provided to predict the prawn’s harvest in aquaculture through analytical research in agrometeorology, mathematical statistics, synoptic meteorology and et al. It is found out that the Benefit Analysis of the Best Harvest is one of the most ideal ways. The models for the breeding objects, climate prediction and analysis of market quotation should be set up and perfected continuously. Only when the dynamic numerical simulation of the growth is accurate and the short-term weather forecast and the market quotation are reliable, will the suitable harvest time be predicted precisely. We used to write this paper with the foundation on ideologies.

Changing Characteristics on Dust Storm in Jiangsu  [PDF]
Zhaotang Shang, Lin Cheng, Qingping Yu, Lang He, Zhigang Lu
Open Journal of Air Pollution (OJAP) , 2012, DOI: 10.4236/ojap.2012.13009
Abstract: Based on observation data of dust storm for the years 1960-2006 from weather stations across Jiangsu, this essay provides a statistical analysis on the characteristics and trends, including the timeframes and regions of the incidences of four weather phenomena: sandstorm, blowing sand, floating dust and haze in an effort to better understand the trend of dust storm changes in Jiangsu Province, China. The result indicates that, on average, the incidences of sandstorm, indi- cated with the total number of days in a year in Jiangsu is low and on a declining trend. With the improvement of the environment, no sandstorm has been observed for many years. In general, those of blowing sand and floating dust have been reducing, and showing a significant improvement during the recent years. What should be noted, however, is the accelerated increase in haze incidences, particularly, in Southern Jiangsu.
Arbuscular mycorrhizal fungi diversity in the rhizosphere of tea plant (Camellia sinensis)grown in Laoshan,Shandong

Lisha Wu,Yu Wang,Min Li,Zhaotang Ding,Runjin Liu,

生物多样性 , 2009,
Abstract: To determine the diversity of arbuscular mycorrhizal (AM) fungi in the rhizosphere of tea plant (Camellia sinensis) in Laoshan region, Shandong Province, we selected and sampled 12 representative tea gardens. Soil samples were collected from these gardens in September 2007. Spores of AM fungi were identified to reveal the species richness, frequency, spore density, relative abundance, importance value and Shannon-Wiener indices of AM fungi. Species diversity and composition of AM fungal community were also compared among the 12 tea gardens. A total of 22 species belonging to three genera were identified according to the morphological characteristics of the spores isolated from soil samples collected using wet-sieving techniques. The relative abundance of the genus Acaulospora was the highest, followed by Glomus. Soil samples from Xiaowang Village Tea Garden showed the highest spore density, while Gaojia Village soils were the lowest. Species richness in soil samples from Changjiacun Village and Sangyuan Village Tea Garden was significantly higher than that in other tea gardens. Species diversity was highest in the Changjiacun Village Tea Garden. Acaulospora laevis was the dominant species in Beilao Tea Garden, Wanglijiang Tea Garden, Yingshanchun Tea Garden, Wanlijiang Organic Tea Garden, Changjia Village, and Sangyuan Village Tea Garden, while Acaulospora undulata was the most common species in Gaojiacun Village and Wanlaike Tea Garden. Glomus occultum occurred most frequently in Yingshanchun Tea Garden, Xiaowang Village and Wanlaike Tea Garden. Relationships between environmental factors and AM fungi spore density in the Laoshan Tea region were determined using Canonical Correspondence Analysis, and their relative degree of impact on density was as follows: available phosphorus content>soil organic matter content>tree age>soil available nitrogen content > soil pH>soil available potassium content.

Zhang Zhaotang,Wang Gang,

电子与信息学报 , 1990,
Abstract: An automatic testing and plotting system of Rieke diagram is described. In this system, microcomputers are utilized to control the variable mismatch microwave load, to sample the tested data, to process these data and to plot the diagram. Several Rieke diagrams of microwave tube worked at X band are plotted.
A Novel Dual-Loop Coupler for One-Port Cylindrical Cavity Permittivity Measurement
Hai Zhang;Bao-Qing Zeng;Lei Ao;Zhaotang Zhang
PIER , 2012, DOI: 10.2528/PIER12032613
Abstract: The one-port cavity resonator method based on the parameter measurement technique for measuring the complex permittivity of dielectric samples has been proposed. A novel dual-loop coupler is developed for avoiding and suppressing the spurious modes in one-port cavity resonator. Through threading the pair of half loop in the opposite direction, the opposite surface currents can be generated and only TE mode will be excited. The operating principles of the dual-loop coupler are investigated. This technique has the advantages of the coupling. Equivalent electronic circuit model has been set up. Simulation and experimental results show good agreement.
Architectural Technology Strategies of Zero Energy Solar House  [PDF]
Ding Ding, Chongjie Wang
Energy and Power Engineering (EPE) , 2013, DOI: 10.4236/epe.2013.54B055
Abstract: Taking I-Magic Cube - the entry of Shandong Jianzhu University for Solar Decathlon 2013 - for example, the paper analyzes the conceptual, technological, functional and aesthetic solutions of zero energy solar house coping with ecological, economic, social and cultural challenges. Passive strategies, the solar thermal and PV system, and the building integrated solar system tactics are elaborated. Finally, industrialization and marketing viability of the solar house prototypes are discussed.
Product Maintainability Design Method and Support Tool Based on Feature Model  [PDF]
Yufeng DING
Journal of Software Engineering and Applications (JSEA) , 2009, DOI: 10.4236/jsea.2009.23024
Abstract: Maintainability is an important character which is given by product design process. The maintainability design criteria and measure index used in product maintainability analysis are summarized and discussed in this paper. A product maintainability design method is studied by integrating the product feature model, maintainability design criteria with measure index. Product feature model can be built on the basis of the product feature library quickly. Product feature library for steam turbine design is created by using SolidWorks design library origination structure. A methodology which supports the design and development of product maintainability design support tool (PMDSTs) is put forward. The function of PMDSTs is designed by using UML (Unified Modeling Language) use case diagram, it is developed by using VC++ 6.0. The maintainability analysis application case of steam turbine-generator system is given at last.
Private Branding Analysis with the Intervention of Marketing Efforts on Channel Competition  [PDF]
Ding Yuan
American Journal of Industrial and Business Management (AJIBM) , 2016, DOI: 10.4236/ajibm.2016.62015
Abstract: Over the past decades, the retail industry has been continuingly prosperous through the constant booming of Chinese economy, a reality that retailers brand their store names or other private labels to products made by unaffiliated manufacturers. However, mass of data shows that retailers are reluctant to maximize their marketing efforts without private labels; from this perspective game theory was used to construct models for three modes, by which two distinguished circumstances depended on whether to adopt private branding. The results reveal a new theoretical insight into private branding choice that retails will not be fully motivated to optimize their marketing efforts on product branded by manufacturers because of the brand specificity. In addition, results also offer an internal condition of private branding strategy and its relevant factors. I’ve built my hope that this approach of private branding is useful to retailers who need scientific suggestions for crafting an efficient branding strategy.
Discussion and Research on Information Security Attack and Defense Platform Construction in Universities Based on Cloud Computing and Virtualization  [PDF]
Xiancheng Ding
Journal of Information Security (JIS) , 2016, DOI: 10.4236/jis.2016.75025
Abstract: This paper puts forward the plan on constructing information security attack and defense platform based on cloud computing and virtualization, provides the hardware topology structure of the platform and technical framework of the system and the experimental process and technical principle of the platform. The experiment platform can provide more than 20 attack classes. Using the virtualization technology can build hypothesized target of various types in the laboratory and diversified network structure to carry out attack and defense experiment.
The Application of Graded Teaching Pattern in College English Classroom Teaching  [PDF]
Jiqun Ding
Creative Education (CE) , 2017, DOI: 10.4236/ce.2017.82021
The graded teaching pattern, which takes different and targeted teaching methods according to students’ English foundation and their distincted enthusiasm in English learning, is becoming one of the most common methods of teaching in College English teaching. This paper analyzes briefly the practices and explorations of graded teaching pattern in college English teaching in China in recent years, clears up relevant theoretical basis, and discusses the problems and deficiencies of this patter in application.
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