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Search Results: 1 - 10 of 36877 matches for " Youbin Zhao "
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Research on Classification and Development of College Teachers in the Context of Value Pluralism  [PDF]
Pu He, Hong Zhang, Youbin Zhao
Advances in Anthropology (AA) , 2016, DOI: 10.4236/aa.2016.64013
Abstract: The number of Chinese college teachers is considerably large, and these teachers have their own focus on teaching, research, social services and other different orientations. Given that, the teacher evaluation system operated in a single way has caused widespread problem that the teachers lack developing motivation and attach importance to scientific research rather than teaching. According to the classification of human values and definition of teacher development, this article proposes five development categories of college teachers in the context of plural values. The only way to achieve the development of college teachers is to fully respect their needs of personalized development and provide guidance according to their classification.
The Root and Governance of Land Corruption from the Perspective of Behavioristics: Based on the Analysis of Four Typical Cases  [PDF]
Gedong Zhu, Youbin Yu
Open Journal of Social Sciences (JSS) , 2017, DOI: 10.4236/jss.2017.59010
Abstract: In recent years, land corruption frequently turns up at various major media and caught the attention of all walks of life. But very few researches on land corruption can be seen. These researches are limited to manifestation and countermeasures of land corruption, which lack depth and systematicity. On this basis, this paper is designed from the behavioral research perspective to study the behavioral rules and characteristics of land corruption. It also discussed the in-depth institutional reasons for land corruption through a three-dimensional system (subject, occurrence part and method of land corruption) and empirical surveys of four typical cases. The conclusion of the study may be useful for a further understanding of the real situation of land corruption.
Anti-Icing Method Based on Reducing Voltage of Transmission Lines  [PDF]
Xiaoming LI, Junjie HUANG, Youbin ZHOU
Energy and Power Engineering (EPE) , 2009, DOI: 10.4236/epe.2009.11001
Abstract: The icing of transmission lines threatens the security of power system. This paper proposes a novel anti-icing method based on reducing voltage of the transmission lines. The line voltage can be reduced by regulating the ratio of the transformers which install the both ends of the transmission lines. The line current can be increased and the power loss of the transmission lines can also be increased, which means the heat generated by power loss increases and the icing process of the transmission lines can be restrained. When the icing may occur in the atrocious weather, the anti-icing transformers installed the both ends of transmission line are put into operation. The ratios of transformers are regulated to the appropriate value. The current of transmission line can be increased to the value that is a little greater than the critical current, which can realize the purpose of anti-icing. At the same time, the conditions of normal running in the load side are kept invariably, which can ensure the security of power system. This method can be applicable to a wide range. It's an effective measure to prevent the icing of the transmission lines.
Effect of Hematoporphyrin Monomethyl Ether-Sonodynamic Therapy (HMME-SDT) on Hypertrophic Scarring
Hanjun Zhang, Xing Liu, Youbin Liu, Yin Wu, Hongxi Li, Chengbin Zhao, Huazhe Li, Qinggang Meng, Wei Li
PLOS ONE , 2014, DOI: 10.1371/journal.pone.0086003
Abstract: Objective The aim of the present study was to explore the potential for hematoporphyrin monomethyl ether-Sonodynamic Therapy (HMME-SDT) treatment of hypertrophic scars within rabbit ears. Methods 60 white rabbits were randomly divided into five groups: 1) untreated controls, 2) lesioned, 3) lesioned + HMME, 4) lesioned + US (Ultrasound), and 5) lesioned +HMME-SDT. After induction of a lesion upon the ears of the rabbits, hypertrophic scars were assessed at 14, 28, 42 and 56 days post-lesion +/? treatment. Assessments consisted of visual inspection in the change of the skin, scar formation pathological morphology by hematoxylin and eosin (HE) staining technique with optical microscopy, calculation of a hypertrophic index, fibroblastic density measures, and observation of collagen changes in the scar tissue by Van Gieson's (VG)Stain along with calculation of collagen area density. Results With continued HMME-SDT treatment there was a gradual improvement in all parameters over the duration of the experiment. The lesion-induced scars of rabbits receiving HMME-SDT treatment were soft, the size was reduced, hyperplasia was flat and the color pale. The fibroblasts and collagens were reduced and the collagens were light red, sparse and orderly. The hypertrophic index was reduced, since the fibroblastic density was lowered and collagen area density was decreased. Conclusion HMME is an effective sonosensitizer and the combination of HMME-SDT treatment can exert significant benefits in reducing the formation of hypertrophic scars.
Sedimentary Environment of the Early Ordovician in Danzhai, Guizhou  [PDF]
Yu Pei, Youbin He, Jinxiong Luo, Yantao Zeng, Zhan Wen
Open Journal of Yangtze Oil and Gas (OJOGas) , 2017, DOI: 10.4236/ojogas.2017.23009
Abstract: This study analyzes the variations in trace element contents and ratios, the distribution patterns of rare earth elements, and the sedimentary environment and its evolution in the Early Ordovician. In particular, the analysis is based on measured section of the Qingjiang Village located in Nangao Town, Danzhai County, Guizhou Province. The analysis also considers thin sections and the characteristics of C, O isotopes. The lower part of the Tongzi Formation has a simple lithology and mainly consists of light gray to gray thin-medium bedded muddy dolomite and dolomicrite with a few dolarenites and dolorudites. The upper part of this formation includes gray thin-medium bedded fine crystalline dolomite and gray massive bioclastic limestone. Only a fraction of gray massive fine crystalline limestone, sparry calcarenite, and calcirudite are on top of the upper part. The Honghuayuan Formation is generally composed of light gray to gray medium-thick bedded or massive bioclastic limestone, reef limestone, and calcarenite with a few sandstones at the bottom. The δ18OPDB values of 18 samples are less than -11‰; in addition, the Pr/Pr* and Ce/Ce* ratios are greater and less than 1, respectively. These data reflect a sedimentary environment. The lower part of the Tongzi Formation might have been formed in an evaporite platform, which was then transformed into a restricted one, which featured a dry climate, a shallow water depth, and an insufficient amount of oxygen. By contrast, the upper part of the formation was deposited in an open platform, which featured a humid climate and relatively increased water depth and reducibility. During the sedimentary period of the Honghuayuan Formation, the water energy further increased, the climate became humid, the water depth increased, and the reducibility increased. Correspondingly, the sedimentary environment, which originally comprised littoral facies that slowly developed into an open platform and into a platform marginal bank, gradually evolved into a platform marginal reef.
Grain size distribution of quartz isolated from Chinese loess1 paleosol
Youbin Sun,Huayu Lu,Zhisheng An
Chinese Science Bulletin , 2000, DOI: 10.1007/BF02886372
Abstract: Grain size distribution of bulk loess-paleosol and quartz chemically extracted from the loess/paleosol shows that mean size of the bulk samples is always finer than that of the quartz. The original aeolian depositions have been modified to various degrees by post-depositional weathering and pedogenic processes. The grain size distribution of the isolated quartz should be close to that of the primary aeolian sediment because the chemical pretreatment excludes secondary produced minerals. Therefore, the grain size of the quartz may be considered to more clearly reflect the variations of winter monsoon intensity.
Preliminary analysis of grain-size populations with environmentally sensitive terrigenous components in marginal sea setting
Youbin Sun,Shu Gao,Jun Li
Chinese Science Bulletin , 2003, DOI: 10.1360/03tb9038
Abstract: Terrigenous components were separated from the bulk sediment of Core A7 from the Okinawa Trough and Core A37 from the Ryukru Trench and grainsize distributions of these subsamples were analyzed. Based upon an analysis of the grainsize data of the two sedimentary sequences, grainsize populations are identified to be sensitive to sedimentary environmental changes. The modal values and size ranges of the two main grainsize populations in Core A7 are evidently different from those of Core A37, indicating the spatial variability of sediment sources and transport processes between the two places. The downcore variations in the content of the environmentally sensitive grain-size populations reveal that during the accumulation of sedimentary material the environment remained relatively stable at the site where Core A7 was collected, except for the apparent events for the formation of two turbidite layers and a volcanic ash layer. However, the sedimentary sequence of Core A37 shows six sedimentary cycles, indicating a highly variable sedimentary environment at this location.
Attractors of Local Semiflows on Topological Spaces
Desheng Li,Youbin Xiong,Jintao Wang
Mathematics , 2015,
Abstract: In this paper we introduce a notion of an attractor for local semiflows on topological spaces, which in some cases seems to be more suitable than the existing ones in the literature. Based on this notion we develop a basic attractor theory on topological spaces under appropriate separation axioms. First, we discuss fundamental properties of attractors such as maximality and stability and establish some existence results. Then, we give a converse Lyapunov theorem. Finally, the Morse decomposition of attractors is also addressed.
Preliminary analysis of grain-size populations with environmentally sensitive terrigenous components in marginal sea setting
Preliminary analysis of grain-size populations with environmentally sensitive terrigenous component in marginal sea setting

Youbin Sun,Shu Gao,Jun Li,
SUNYoubin
,GAOShu

科学通报(英文版) , 2003,
Abstract: Terrigenous components were separated from the bulk sediment of Core A7 from the Okinawa Trough and Core A37 from the Ryukru Trench and grainsize distributions of these subsamples were analyzed. Based upon an analysis of the grainsize data of the two sedimentary sequences, grainsize populations are identified to be sensitive to sedimentary environmental changes. The modal values and size ranges of the two main grainsize populations in Core A7 are evidently different from those of Core A37, indicating the spatial variability of sediment sources and transport processes between the two places. The downcore variations in the content of the environmentally sensitive grain-size populations reveal that during the accumulation of sedimentary material the environment remained relatively stable at the site where Core A7 was collected, except for the apparent events for the formation of two turbidite layers and a volcanic ash layer. However, the sedimentary sequence of Core A37 shows six sedimentary cycles, indicating a highly variable sedimentary environment at this location.
3D Geological Modeling under Extremely Complex Geological Conditions
Yanlin Shao,Ailing Zheng,Youbin He,Keyan Xiao
Journal of Computers , 2012, DOI: 10.4304/jcp.7.3.699-705
Abstract: 3D modeling method is divided into geospatial modeling and 3D geological modeling. 3D geological modeling technique has become a favorable tool for people to observe and analyze the geological body enriched in mineral resources. Unlike geospatial modeling, 3D geological modeling must consider various geological conditions affecting spatial shape and petrophysical distribution of geological body for its complexity. This article analyzes the uncertainty, complexity and diversity of geological body, and lists complex geological conditions controlling spatial shape and petrophysical distributions of geological body. And then 3D geological modeling method under the control of complex geological conditions is proposed, and corresponding modeling workflow is set up. Finally, taking 3D geological modeling of petroleum exploration and development for example, 3D geological model of Shu II district in the Liaohe oil-field is built. Based on this model, some applications are realized, such as 3D visualization of structural model and petrophysical model, reserves calculation and drilling design, etc.
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