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Search Results: 1 - 10 of 50602 matches for " Bo Hong "
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Predicting the Growth in Tree Height for Building Sunshine in Residential District  [PDF]
Bo Hong
Open Journal of Forestry (OJF) , 2015, DOI: 10.4236/ojf.2015.51007
Abstract: Residential greening constitutes a significant portion of the urban environment. Trees, as the largest entities in the tree-shrub-herb greening system, are the best choice for residential afforestation. Hence, tree arrangement in green space between buildings is significant, for which may exert negative impact on building sunshine. This study takes He Qingyuan residential area in Beijing as a case study to predict the growth in tree height between buildings to meet good sunshine requirements. The procedures were draw as follows: 1) models including building layout and trees were built using computer-aided design (Auto CAD). Afterwards, according to tree crown shape, tree height limits were determined for the same building layout; 2) and after that, the growth in tree height was predicted using the nonlinear height-diameter functions to meet the good sunshine requirements. The results allow us to determine which trees to plant between buildings in that the designers can predict the effects of future tree growth on building sunshine.
Optimum Design of Tilt Angle and Horizontal Direction of Solar Collectors under Obstacle’s Shadow for Building Applications  [PDF]
Shaoning Wang, Bo Hong
Journal of Building Construction and Planning Research (JBCPR) , 2015, DOI: 10.4236/jbcpr.2015.32007
Abstract: Solar collectors can provide clean, renewable, and domestic energy. The tilt angle and horizontal direction of solar collectors significantly affect its efficiency. There are many good methods to search the optimum tilt angle and horizontal direction to realize the maximum total radiation on the solar collector within a particular day or a specific period. However, it is hard to realize it when solar collectors are placed under obstacle’s shadows; especially when some obstacles, such as trees, have irregular shapes. This paper presents algorithms to achieve the best tilt angle and horizontal direction for solar collector’s performance under the free-form surfaces 3D obstacle’s shadow. The solution process is composed of 4 steps. First, it creates a 3D scene, in which a unique color is given to the solar collector. Second, it employs orthographic projection from the point of view to get an image of the scene. Third, the number of pixels is used to represent the efficiency of the solar collector by counting the pixels of the unique color. Fourth, the efficiency of solar collector in each direction in a period of time is calculated with many images to further select the best direction.
RETRACTED: Coupling Numerical Simulation and Field Experiment to Optimize Vegetation Arrangement for Pleasant Outdoor Wind Environment in Residential District  [PDF]
Bo Hong, Fang Chen, Peng Ren
Journal of Environmental Protection (JEP) , 2015, DOI: 10.4236/jep.2015.64037
Abstract: Short Retraction Notice

The paper does not meet the standards of \"Journal of Environmental Protection\".

This article has been retracted to straighten the academic record. In making this decision the Editorial Board follows COPE's Retraction Guidelines. The aim is to promote the circulation of scientific research by offering an ideal research publication platform with due consideration of internationally accepted standards on publication ethics. The Editorial Board would like to extend its sincere apologies for any inconvenience this retraction may have caused.

Editor guiding this retraction: Prof. Qingren Wang (EiC of JEP)

The full retraction notice in PDF is preceding the original paper, which is marked \"RETRACTED\".
Attribute Reduction in Interval and Set-Valued Decision Information Systems  [PDF]
Hong Wang, Hong-Bo Yue, Xi-E Chen
Applied Mathematics (AM) , 2013, DOI: 10.4236/am.2013.411204
Abstract:

In many practical situation, some of the attribute values for an object may be interval and set-valued. This paper introduces the interval and set-valued information systems and decision systems. According to the semantic relation of attribute values, interval and set-valued information systems can be classified into two categories: disjunctive (Type 1) and conjunctive (Type 2) systems. In this paper, we mainly focus on semantic interpretation of Type 1. Then, we define a new fuzzy preference relation and construct a fuzzy rough set model for interval and set-valued information systems. Moreover, based on the new fuzzy preference relation, the concepts of the significance measure of condition attributes and the relative significance measure of condition attributes are given in interval and set-valued decision information systems by the introduction of fuzzy positive region and the dependency degree. And on this basis, a heuristic algorithm for calculating fuzzy positive region reduction in interval and set-valued decision information systems is given. Finally, we give an illustrative example to substantiate the theoretical arguments. The results will help us to gain much more insights into the meaning of fuzzy rough set theory. Furthermore, it has provided a new perspective to study the attribute reduction problem in decision systems.

DNA Extraction from Formalin Fixed Coilia macrognathos Fin Tissues  [PDF]
Xiping Yuan, Hong Li, Chongrui Wang, Bo Hong
Agricultural Sciences (AS) , 2014, DOI: 10.4236/as.2014.512119
Abstract: Approximately 200 mg of fin tissue from each specimen was cut into pieces and treated with a gradient of ethanol (65%, 70%, 75%, 80%, 85%, 90%, 95% and 100%) and then DNA was extracted from formalin fish fin tissues. Agarose gel visualization of the DNA confirmed DNA extracted. MtDNA cyt b gene banding pattern of samples with agarose gel was clearly visible and could be used to be sequenced. In terms of DNA purity, the 260/280 ratio of 87.5% samples ranged between 1.8 and 2.0, indicating that DNA of the majority of the samples was pure. The developed DNA extraction procedure from formalin fish fin tissues by pretreatment with a gradient of ethanol system will be a useful tool to study the genetic structure and phylogenesis of endangered fish, by specimens preserved formalin-fixed in museum and herbarium.
Diagnostic analysis on the northern South China Sea winter counter-wind current
Bo Hong,Dongxiao Wang
Chinese Science Bulletin , 2006, DOI: 10.1007/s11434-006-9009-y
Abstract: The winter counter-wind current (also named the South China Sea Warm Current (SCSWC)) in the northern South China Sea (SCS) has been known well for decades, but its mass and momentum origination have not be quantitatively evaluated before. In this paper, the high resolution three-dimensional ocean circulation model is adopted to reproduce the circulation in the northern SCS. The diagnostic analyses are performed to investigate the momentum budget in the northern SCS continental shelf/slope and the momentum propulsion of the SCSWC. It is indicated that the across-shelf pressure gradient and the across-shelf transport are responsible for the formation of the SCSWC, while the along-shelf pressure gradient is balanced by the surface stress, bottom stress, and Coriolis force. The magnitude of the terms in the along-shelf momentum equation is smaller than that in the across-shelf one. The analysis on the momentum budget in the northern SCS will benefit the marine environmental prediction in the future.
Connotations and extensions of comparative effectiveness research and feasibility analysis for clinical evaluation in traditional Chinese medicine
Hong-bo Cao
Zhong Xi Yi Jie He Xue Bao , 2012,
Abstract: Comparative effectiveness research (CER) is well developed in international medical research. This article analyzes the basic connotations of CER from five aspects, including selection of objective, positioning of target population, comparison of intervention scheme, identification of contrast condition and analysis of therapeutic effects. The inclusiveness and advanced nature of CER were revealed by comparing with modern medical research methods, such as evidence-based medicine, patient-important outcome and randomized controlled trials. Based on the superiority of CER, the feasibility of applying CER in clinical evaluation of traditional Chinese medicine is explored. CER should be combined with the holistic concept, syndrome differentiation and individuality-concerned treatment so as to facilitate its development in research of traditional Chinese medicine in China.
A Comparative Study on the Cognitive Schema of Spatial Conceptualization of UP-DOWN in Russian and Chinese
Hong-bo CHEN
Cross-Cultural Communication , 2007, DOI: 10.3968/640
Abstract: The cognitive schema is one of the topics in cognitive linguistics, and a cognitive pattern formed from the interaction between people and the outside world. Based on Lakoff’s cognitive schema theory, this paper compares the cognitive schema of spatial conceptualization of UP-DOWN in Russian and Chinese, and discusses the cognitive characteristics and meanings of the conceptualization of UP-DOWN by presenting the schemata in both the two languages. It proves that spatial conceptualization, as one of the basic experience of people, influences the structures and meanings of languages. Key words: spatial conceptualization, UP, DOWN, cognitive schema Résumé: Le modèle cognitif est une problématique de la linguistique cognitive et un moyen de cognition formé sur la base de l’interaction entre l’homme et le monde extérieur. Se référant à la théorie de George Lakoff, l’article présent compare les modèles russe et chinois sur la notion spatiale(avec l’exemple de haut-bas ), examine les caractéristiques cognitives et le sens de la notion haut-bas dans les deux langues et les démontrent de fa on graphique, pour prouver que la notion spatiale, comme une des expériences fondamentales de l’homme, influe la structure et le sens de la langue. Mots-clés: notion spatiale, haut , bas , modèle cognitif 摘要:認知模式是認知語言學研究的課題之一,是人與外部世界在互動的基礎上形成的認知方式。本文以萊考夫認知模式的主要理論為依據,比較俄漢語空間概念(以“上——下”為例)的認知模式,討論“上——下”概念在兩種語言中衍生的認知特點和含義並用圖式表示出來,證明了作為人的基本經驗之一的空間概念影響著語言的結構和意義。 關鍵詞:空間概念;“上”;“下”;認知模式
Dynamic Equivalent Method of Motor Loads for Power Systems Based on the Weighted  [PDF]
Bo Hong, Hanmei Hu, Ting Chen, Qinfeng Li
Journal of Power and Energy Engineering (JPEE) , 2014, DOI: 10.4236/jpee.2014.24056
Abstract: Dynamic equivalence can not only largely reduce the system size and the computation time but also stress the dominant features of the system [1]-[3]. This paper firstly recommends the basic concept of dynamic equivalent and the status of both domestic and abroad development in this area. The most existing equivalent methods usually only deal with static load models and neglect the dynamic characteristics of loads such as induction motors. In addition, the existing polymerization method which is based on the frequency domain algorithm of induction electric machines parameters takes a long time to equivalent for the large system, then the new method based on the weighted is proposed. Then, the basic steps for dynamic equivalence with the weighted method are introduced as follows. At first, the clustering criterion of motor loads based on time domain simulation is given. The motors with similar dynamic characteristics are classified into one group. Then, the simplication of the buses of motors in same group and network is carried out. Finally, parameters of the equivalent motor are calculated and the equivalent system is thus obtained based on the weighted. This aggregation method is applied to the simple distribution system of 4 generators. Simulation results show that the method can quickly obtain polymerization parameters of generator groups and the aggregation model retains the dynamic performance of the original model with good accuracy, the active and reactive power fitting error is smaller as well.
Numerical Simulation of the Heavy Rainfall in the Yangtze-Huai River Basin during Summer 2003 Using the WRF Model
LIU Hong-Bo,
LIU
,Hong-Bo

大气和海洋科学快报 , 2012,
Abstract: In this study, a 47-day regional climate simulation of the heavy rainfall in the Yangtze-Huai River Basin during the summer of 2003 was conducted using the Weather Research and Forecast (WRF) model. The simulation reproduces reasonably well the evolution of the rainfall during the study period’s three successive rainy phases, especially the frequent heavy rainfall events occurring in the Huai River Basin. The model captures the major rainfall peak observed by the monitoring stations in the morning. Another peak appears later than that shown by the observations. In addition, the simulation realistically captures not only the evolution of the low-level winds but also the characteristics of their diurnal variation. The strong southwesterly (low-level jet, LLJ) wind speed increases beginning in the early evening and reaches a peak in the morning; it then gradually decreases until the afternoon. The intense LLJ forms a strong convergent circulation pattern in the early morning along the Yangtze-Huai River Basin. This pattern partly explains the rainfall peak observed at this time. This study furnishes a basis for the further analysis of the mechanisms of evolution of the LLJ and for the further study of the interactions between the LLJ and rainfall.
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