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Search Results: 1 - 10 of 120060 matches for " Lachun Wang "
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Karst conduit flow and its hydrodynamic characteristics — Houzhai River drainage basin in Puding, Guizhou, China as an example
Lachun Wang,Yongzhan Zhang
Chinese Science Bulletin , 2001, DOI: 10.1007/BF03187235
Abstract: Conduit flow is a special geomorphologic and hydrological phenomenon in karst area. Houzhai River drainage basin in Puding, Guizhou Province is a large-scale test field in the main and broad karst area in the southern part of China, where conduit flow is a general reserve and drainage system for groundwater. Based on the great deal of field investigation and indoor research work during the 1970s–1980s, pulse tests were done four times there during 1988–1991 in wet and dry seasons. It shows that water level at each observation site changes from 10 to 1800 mm, with the larger variation in upper stream and at karst windows than in lower reaches and at each exit along subterraneous rivers. The average flow velocity in conduit system is determined within 200 – 800 m/h, with the less change from flood to dry seasons, and it is higher in principal conduits and in upper stream area. Also, the reliable divided discharge ratio among each hydrological conduit of sunken system has been got. Thus, combined with detailed field survey in this area, the river system has been exposed finally.

Chen Xiaoling,Wang Lachun,Zhu Dakui,

地理学报 , 1996,
Abstract: The system of northern Jiangsu lowlands has its particular states and structures due to the seariver interaction.It is a low-lying plain with a mean elevation of about 3 metres above sea level.Itsslope gradient is about and the mean gradient of channels' water stage is Bymaking the digital elevation model and analyzing the Quaternary sedimentary facies,the system ofnorthern Jiangsu lowlands is divided into three parts: the ancient lagoon low-lying plain of Lixiahearea, the marine plain along coastal area and the Changjiang river delta plain.The sea level rise willhave severe effects on the system, which will be more frequently endangered by flood and water logging.Through analyzing the states and structures of the northern Jiangsu lowlands system.this paper studies its complex responses to the sea level rise, and gives the measures adapted to the sea levelrise.
Water Consumption Structure Based on the Niche and Its Entropy Model: A Case Study of Anyang City, Henan Province

JIAO Shixing,WANG Lachun,LI Jing,YANG Shunxi,LI Yangdong,ZHAO Rongqin,YIN Yixing,

资源科学 , 2011,
Abstract: Water consumption structure is of great importance to realize the rational allocation of water resources and harmonious development of society and economy. Quantity of water resources utilization reflects the status of different types of water consumption, which belongs to the state of water resources utilization, whereas its growth and reduction embodies the expansion and compression of water consumption, which belongs to the potential of water resources utilization. A niche model based on the status and potential of the water consumption eco-unit and dimensional transformation coefficient, and a niche entropy model by water consumption niche were built in this study. In order to analyze the influential degree of economic loss caused by water consumption niche, based on an economic evaluation model of groundwater over-exploitation and ecological water shortage of channel and green space as well as value per unit water of ecological water, economic loss caused by the shortage of groundwater and ecological water were estimated. Distance correlation analysis was performed, with the influential degree being determined in terms of its quantitative value. A case study on Anyang City in Henan Province was conducted. Results show that the greater proportion of agricultural water niche decreased, the smaller proportion of domestic water niche increased steadily, and industrial water increased except for the urban areas. Niche entropy values vary greatly in space. The occupancy rate of agricultural water in Tangyin County, Huaxian County, and Neihuang County is higher than that of Anyang City. The occupancy rate of domestic water and industrial water in the urban areas and Linzhou County is higher than that of Anyang City as opposed to other regions. The agricultural water niche in Huaxian County and urban areas is greatly sensitive to economical lose from the environment; however, the industrial water niche in Anyang County is sensitive to it. Compared with the whole country, the water consumption structure of Anyang City tends to be harmonious. The more the agricultural water niche, the less the industrial and domestic water niche. The key to adjust water utilization structure is to reduce agricultural water. The total amount of water consumption should be controlled by various measures in order to guarantee a coordinated situation of development. The niche and its entropy model have been shown to be generally reasonable and operational.
Software Industry Cluster be Disagreement on Theory and Practice  [PDF]
Yang Wang, Luqian Wang
Intelligent Information Management (IIM) , 2010, DOI: 10.4236/iim.2010.210069
Abstract: In the view of traditional industry cluster theory, it is easy to copy the software industry cluster pattern, or it is easy to copy another Silicon Valley, due to low reliability of the resources and the guidance factors of locations in software industry. But it is much more difficult to copy a Silicon Valley mode practically than imaginatively and the difficulties of bringing up and supporting high-tech initiatives is more than theoretic anticipation. In China, the software companies have just gathered together geographically and therefore no initiative center can be formed. All these above signify that software industry cluster is distinct from the traditional industry clusters, but the cognition of the reasons of software industry cluster is not clear yet. Furthermore, reasonable explanations of the bewilderment in the economical practice of software industry cluster are urgently needed.
The Economic Growth Effect of Logistics Industry FDI Analysis  [PDF]
Yang Wang, Luqian Wang
iBusiness (IB) , 2010, DOI: 10.4236/ib.2010.24049
Abstract: Based on the direction of the international FDI changed, from manufacturing to service industries, we should concern about the influence of the introduction of China’s logistics industry FDI to the national economy. The paper sets up regression model to examine logistics FDI and GDP in two aspects of time series and growth rate, we find that the logistics FDI reaches a high correlation with GDP, and logistics FDI is one of the major driving forces of economic development. Therefore, China should expand the introduction of logistics FDI, improve the quality of foreign investment, develop the positive economic growth effect of logistics FDI and promote the change of China’s economic growth pattern to ensure the development of China’s economy.
The Predictive Effects of Online Communication on Well-Being among Chinese Adolescents  [PDF]
Jinliang Wang, Haizhen Wang
Psychology (PSYCH) , 2011, DOI: 10.4236/psych.2011.24056
Abstract: Based on theories and previous studies on online communication, we proposed two hypotheses to better under- stand the effects of online communication on subjective well-being with a sample of Chinese adolescents (n = 190). The results of liner regression analysis found that online communication was positively related to adoles- cents’ subjective well-being. For boys, the coefficient of determination of online communication on subjective well-being was .143, and for girls the coefficient of determination was .040, indicating that boys benefit more from online communication than do girls.
The Impact of Radical Prostatectomy on the Survival of Patients with Carcinosarcoma of the Prostate  [PDF]
Jue Wang, Fenwei Wang
Journal of Cancer Therapy (JCT) , 2011, DOI: 10.4236/jct.2011.24064
Abstract: Background: The objective of this study was to evaluate the impact of radical prostatectomy on carcinosarcoma of the prostate. Methods: Patients diagnosed with carcinosarcoma of the prostate from 1977 through 2007 were identified in the Surveillance, Epidemiology, and End Results (SEER) database. Outcomes were examined with Kaplan-Meier survival analysis and Cox models. The association between clinical and demographic characteristics and survival of carcinosarcoma of the prostate was examined. Results: A total of fifty-four cases of histology confirmed carcinosarcoma of the prostate were identified. Median age of the patients was 74 years (range 28 - 94). Of the patients with a known tumor stage, all but one patient had a locally advanced or distant stage; all of the patients with known histology grade had poorly or undifferentiated histology. Twenty (37%) patients underwent transurethral resection only and Fourteen (25.9%) patients underwent radical prostatectomy. Eight (14%) patients received radiation therapy in combination with surgery. The median cancer specific survival was 16 months (95% CI 0 - 32 months). 1-, 3-, and 5- year cancer specific survival rate were 55.1%, 32.3% and 21.1%. In a multivariate analysis, radical prostatectomy was found to be a significant prognostic factor for cancer-specific survival. Conclusions: Carcinosarcoma of the prostate commonly occurs in older patients and associated with aggressive disease and poor prognosis. Radical prostatectomy is the only treatment modality that significantly improves survival. Emphasis on early diagnosis and detection and multimodality therapy of this disease is needed to improve the outcome for patients with this malignancy.
A Research on the Relationship between FDI and Jiangsu’s Regional Economy Disparity  [PDF]
Baoqian Wang, Cheng Wang
Technology and Investment (TI) , 2012, DOI: 10.4236/ti.2012.33018
Abstract: Through reading and summarizing relevant articles, the authors analyze two different kinds of effects that FDI influence the regional economy. Location and digesting ability reflects such non-equilibrium. By using regression analysis, the authors discover, in south Jiangsu, which the unit FDI increase contributes most to the GDP development, with middle and north Jiangsu lagging behind. The regression coefficient is 1.198, 0.429 and 0.572 respectively. Considering the index of digestion ability, unit FDI increase and unit GDP contribution rate still share strong relevant relationship. However, the coefficients change. The effects that FDI stimulate GDP growth are weakened, been made up by the endogenous ability. The granger test shows that in south Jiangsu, there exists a cycle of accumulative effect, namely both the FDI increase and the GDP growth do well with each other. However, in the rest of Jiangsu province, such effect is not obvious. Considering the elements of location and digesting ability, this paper offers tactics for Jiangsu for a better coordinate of future development.
Causes of and Remedies for Chinglish in Chinese College Students’ Writings  [PDF]
Ping Wang, Weiping Wang
Open Journal of Modern Linguistics (OJML) , 2012, DOI: 10.4236/ojml.2012.22009
Abstract: Based on Interlanguage Theory and other theories, this study examines data from samples of Chinese college students’ writings and interviews with the students to explore the causes of and remedies for Chinglish (a term used to refer English with Chinese characteristics). It claims that Chinglish is mainly caused by syntactic transfer from Chinese, the influence of Chinese thought patterns, inadequate exposure to authentic English and insufficient practice in English writing. The interviews with the students showed that the proportion of L1 thinking decreased with the writer’s L2 development. The recommended remedies for Chinglish include raising students’ awareness of distinctions between English and Chinese, increasing their exposure to authentic English and practice in English writing, and adjusting their thought patterns.
An Entanglement Criterion for States in Infinite Dimensional Bipartite Quantum Systems  [PDF]
Yinzhu Wang, Danxia Wang
Journal of Quantum Information Science (JQIS) , 2012, DOI: 10.4236/jqis.2012.23013
Abstract: In this paper, an entanglement criterion for states in infinite dimensional bipartite quantum systems is presented. We generalize some of separability criterion that was recently introduced by Wu and Anandan in (Phys. Lett. A, 2002, 297, 4-8) to infinite dimensional bipartite quantum systems. In addition, we give an example aimed to illustrate the application of the theorem.
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