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Search Results: 1 - 10 of 25532 matches for " Dong Pixia "
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Recognition of Greenhouse Cucumber Disease Based on Image Processing Technology  [PDF]
Dong Pixia, Wang Xiangdong
Open Journal of Applied Sciences (OJAppS) , 2013, DOI: 10.4236/ojapps.2013.31B006
Abstract: This paper mainly studies the disease of cucumber downy mildew, powdery mildew and anthracnose leaf image processing and recognition technologies. Application of median filtering method of filtering noise, leaf spot disease of cucumber leaf color range segmentation part extract color feature parameters of the lesion site, characteristic parameters of the shape; extraction texture parameters by using gray level co-occurrence matrix. Based on the shortest distance methods to identify diseases of images. The experimental result showed that the current method on disease recognition accuracy rates more than 96%.
The Effect of Knowledge Management on Product Innovation - Evidence from the Chinese Software Outsourcing Vendors  [PDF]
Dong Yang
iBusiness (IB) , 2011, DOI: 10.4236/ib.2011.31003
Abstract: The knowledge acquisition and exploitation are becoming more and more for local vendors in offshore outsourcing cooperation. In the process of product innovation, internal knowledge sharing (IKS), external knowledge acquisition (EKA) and their interactive relationship is discussed. Through the using of the method of 3SLS, the results of STATA indicate that IKS and EKA positively complement for product innovation. Furthermore, the result of SPSS reveals that knowledge exploitation mediates the (IKS) EKA and product innovation.
Research of Extent of Well Control of Explored Reserves of Lithologic Deposit in Delta Front Area  [PDF]
Ma Dong
Advances in Materials Physics and Chemistry (AMPC) , 2012, DOI: 10.4236/ampc.2012.24B050
Abstract: Recently the explored reserves submitted in the oil field mainly situate at the end of deposit in delta front area. During the exploitation and production, problems mainly show on lithologic deposit, for example, reserves are low and difficulty of producing is huge. Based on results of sand body dissection of dense well network of developed oil deposit, and combined with explored reserves, this article researches a relation between extent of well control and reserves precision of explored reserves of lithologic deposit in delta front area by well diluted method. This article has significant influence on objectively understanding our unexploited reserves
The Technical Conditions of Modern Logistics  [PDF]
Zhaojiang Dong
Open Journal of Social Sciences (JSS) , 2013, DOI: 10.4236/jss.2013.15005
Abstract:

Modern logistics is an important link of the modern commodity economy and it is also an important pillar in the development of modern economy. What things are needed in the establishment and development of modern logistics industry are not just the funds, equipment and management. And it is not based on the imitation and transplantation simply. The formation and development of modern logistics industry is the objective requirements of the advanced enterprise management technology. Advanced information technology and standardized management are the technical foundation of modern logistics industry established.

Enterprise Culture: The Headspring of the Enterprise Competition Ability  [PDF]
Zhaojiang Dong
Open Journal of Social Sciences (JSS) , 2013, DOI: 10.4236/jss.2013.15006
Abstract: There are many factors that can decide and affect the enterprise competition ability. From the value chain, the article has analyzed and inquired into the formation and promotion of enterprise competition, and think that the enterprise culture is headspring of enterprise competition ability, that the product or service is the carrying of business enterprise competition ability, and that the value chain is the guaranteeing of the enterprise competition ability. The enterprise culture is the headspring of nutrition to the enterprise competition ability, it is a key factor that affects the enterprise competition ability.
PD Power-Level Control Design for MHTGRs  [PDF]
Zhe Dong
Journal of Power and Energy Engineering (JPEE) , 2014, DOI: 10.4236/jpee.2014.24019
Abstract: Due to its inherent safety feature, the modular high temperature gas-cooled reactor (MHTGR) has been seen as one of the best candidates in building next generation nuclear plants (NGNPs). Since the MHTGR dynamics has high nonlinearity, it is necessary to develop nonlinear power-level controller which is not only beneficial to the safe, stable, efficient and autonomous operation of the MHTGR but also easy to be implemented practically. In this paper, based on the concept of shiftedectropy
and the physically-based control design approach, it is proved theoretically that the simple proportional-differential (PD) output-feedback power-level control can provide globally asymptotic closed-loop stability. Numerical simulation results verify the theoretical results and show the influence of the controller parameters to the dynamic response.
Analyzing the Dynamic Evolution of Co-Opetition Mechanism among Shipping Service Resources  [PDF]
Gang Dong
Open Journal of Social Sciences (JSS) , 2015, DOI: 10.4236/jss.2015.37009
Abstract:

Considering the major shipper choice factors of potential demand, charge sensitivity and service cost coefficient, the paper analyzes the dynamic evolution of co-opetition mechanism among shipping service resources. A number of interesting results are obtained: when the strategy profile moves from perfectly competition to perfectly co-operation, the optimal charge will increase while the improvement of shipping service is uncertain; because long-term equilibrium state is perfectly competition strategy profile, there is a need for appropriate institutional arrangement to reduce the saddle-point position in order to achieve maximize profit for the overall shipping service resources.

Research on the Teaching Methods of College English  [PDF]
Xiaona Dong
Creative Education (CE) , 2016, DOI: 10.4236/ce.2016.79129
Abstract: With the development of our economy, the improvement of the market economy system, the talent competition and the rapid development of global economic integration, the society puts forward higher requirements for university students’ quality. All walks of life are urgent to need a large number of advanced technical talents with a certain level of English. English has become an important tool to participate in international communication and competition. Therefore, it is required to improve the ability of Public English Teaching in order to meet the needs of the development of market economy. Therefore, the use of effective teaching methods and the improvement of the students’ English learning effect are very important. However, how to effectively implement public English Teaching in college and how to improve college students’ English proficiency through teaching have become an urgent problem to be solved. This research analyzes the problems existing in College English teaching, and puts forward a variety of methods to promote college English teaching effect, which can be used as a reference for college English teaching.
Application of Flipped Classroom in College English Teaching  [PDF]
Xiaona Dong
Creative Education (CE) , 2016, DOI: 10.4236/ce.2016.79138
Abstract: The presentation mode of college English class is not immutable, but it shall realize its unique development pattern under the background of modern science and technology innovation. Considering the complexity of college English itself and many secondary courses, so the college English syllabus particularly emphasizes students’ autonomous learning interest and ability in the daily learning. As a result, the experts and scholars within education academic circle both at home and abroad create the teaching mode of “flipped classroom” after long-term research and practice. Although shortcomings still exist in this new teaching model, it will be improved in the development in the future (Bergmann & Sams, 2012). This paper will analyze briefly from the perspectives of current application situation, problems existed and reflections of “flipped classroom” in college English teaching, hoping to provide theoretical support and practical guidance for Chinese colleges to implement “flipped classroom” practice.
Officials’ Rotation, Economic Growth and Environmental Accidents: Do They Affect the Political Promotion?  [PDF]
Yijun Dong
Modern Economy (ME) , 2016, DOI: 10.4236/me.2016.710112
Abstract: Using the rotation of Chinese officials based on handle-collected data from political process of provincial officials in China from 1992 to 2012, this paper examines the influence of officials’ rotation, economic development and environmental accidents on the provincial officials’ promotion probability. The results are as following: 1) officials’ rotation and economic growth have a significant positive influence on the provincial officials’ promotion probability, and the officials’ rotation is more sensitive to the provincial officials’ promotion probability. 2) Environmental accidents have a significant negative influence on the provincial officials’ promotion. When three variables co-exist, the influence of economic development is not significant. 3) The results of different sub-samples based on the provincial officials’ types and regions are different.
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