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Search Results: 1 - 10 of 134526 matches for " Rong Li "
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The Safe Navigation of Partial Motion Planning Based on “Cooperation” with Roadside Fixed Sensors in VANET  [PDF]
Rong Ding, Xiaoguang Li
Wireless Sensor Network (WSN) , 2010, DOI: 10.4236/wsn.2010.29079
Abstract: In recent years, many methods of safe vehicle navigation and partial motion planning (PMP) have been proposed in vehicular ad-hoc network (VANET) field. In order to improve the limitation of traditional PMP, this paper presents a novel effective way to plan motion with cooperation of roadside fixed sensors (RFSs). With their cooperation, the vehicles can get the surrounding information quickly and effectively, and give highly accurate projections about the near future conditions on road. After proposing our algorithm, the worst case is analyzed and methods are found to solve the problem. Finally we conduct one elemental contrast experiment, driver situation awareness, with or without the “cooperation” of RFSs in highway scenarios. The result shows that the vehicles can make a better PMP based on the forward conditions received from RFSs, and extend the warning distance obviously when emergency happens.
The Development of Leisure Sports in Ancient China and Its Contemporary Sports Culture Value  [PDF]
Jianqiang Guo, Rong Li
Advances in Physical Education (APE) , 2017, DOI: 10.4236/ape.2017.74031
Abstract: The traditional culture not only influences the life of modern people, but also promotes the sports undertakings in China. Influenced by the traditional culture, the development of leisure sports in ancient China has very strong traditional cultural nature and its contemporary value connotation. This paper analyzes and discusses on the development of leisure sports in ancient China and its contemporary sports culture value, aiming at further making the development of leisure sports in ancient China and its cultural value connotation clearly, doing some beneficial researches and making some contributions.
Sperm Chromatin-Induced Ectopic Polar Body Extrusion in Mouse Eggs after ICSI and Delayed Egg Activation
Manqi Deng, Rong Li
PLOS ONE , 2009, DOI: 10.1371/journal.pone.0007171
Abstract: Meiotic chromosomes in an oocyte are not only a maternal genome carrier but also provide a positional signal to induce cortical polarization and define asymmetric meiotic division of the oocyte, resulting in polar body extrusion and haploidization of the maternal genome. The meiotic chromosomes play dual function in determination of meiosis: 1) organizing a bipolar spindle formation and 2) inducing cortical polarization and assembly of a distinct cortical cytoskeleton structure in the overlying cortex for polar body extrusion. At fertilization, a sperm brings exogenous paternal chromatin into the egg, which induces ectopic cortical polarization at the sperm entry site and leads to a cone formation, known as fertilization cone. Here we show that the sperm chromatin-induced fertilization cone formation is an abortive polar body extrusion due to lack of spindle induction by the sperm chromatin during fertilization. If experimentally manipulating the fertilization process to allow sperm chromatin to induce both cortical polarization and spindle formation, the fertilization cone can be converted into polar body extrusion. This suggests that sperm chromatin is also able to induce polar body extrusion, like its maternal counterpart. The usually observed cone formation instead of ectopic polar body extrusion induced by sperm chromatin during fertilization is due to special sperm chromatin compaction which restrains it from rapid spindle induction and therefore provides a protective mechanism to prevent a possible paternal genome loss during ectopic polar body extrusion.
Shell concentrations of Early Silurian virgianid brachiopods in northern Guizhou: Temporal and spatial distribution and tempestite formation
Yue Li,JiaYu Rong
Chinese Science Bulletin , 2007, DOI: 10.1007/s11434-007-0224-y
Abstract: Shell beds in the uppermost Xiangshuyuan Formation and its coeval Upper Shihniulan Formation (Lower Silurian), northern Guizhou, SW China, are interpreted as tempestites occurring on the Upper Yangtze Platform. The shells are dominated by two endemic and transient virgianid (brachiopod) taxa, Paraconchidium shiqianensis and Virgianella glabera, which vary in relative abundance and deposited as fragments of valves with cemented micrite that differs from the surrounding sediment, demonstrating that the shells were not originally preserved in growth positions. The thicknesses of individual shell layers vary from ten centimeters to more than four meters. Shells had been strongly stirred up by high-energy currents, mainly caused by ocean storm events and probably related to the profile of the geographic shape of the coastline. Fragmentation of shells, in particular, their thinning anterior parts of ventral and dorsal valves are more intensive. The benthic assemblages are from lower BA2 to upper BA3 in depth, assigned to near shoal belt in geographic background. Breakage and stacking density are of the indexes of proximal and distal transportations. Northern Guizhou was located within the lower latitudes of the Southern Hemisphere during the Silurian time, and obviously affected the depth of the virgianid inhabitation. Most of these shells were disturbed repeatedly by surges. It is inferred that on average, several ten thousand years of growth of shells were required for development of shell layers, followed by storm disruption.
Diethyl [4-(1,3-benzothiazol-2-yl)benzyl]phosphonate
Rong Peng,Huisheng Li
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810047045
Abstract: In the title molecule, C18H20NO3PS, the benzene ring and the benzothiazole mean plane are almost coplanar, forming a dihedral angle of 2.29 (2)°. The two ethyl groups are each disordered over two conformations in ratios that refined to 0.59 (1):0.41 (1) and 0.56 (1):0.44 (1). In the crystal, weak intermolecular C—H...O hydrogen bonds link the molecules into layers parallel to the bc plane.
Effects of psychological training on the serum protein expression in soldiers under mental stress
Medical Journal of Chinese People's Liberation Army , 2011,
Abstract: Objective To investigate the changes of serum protein expression in soldiers under mental stress,who have undergone different psychological trainings,and to evaluate the effect of the psychological training.Methods Ninety-six male commando soldiers were randomly assigned into the common psychological training group,the circulation psychological training group,and the control group(each group comprising 32 soldiers).After four weeks of training,the soldiers in the three groups attended a high-intensity simulated anti-riot exercise.The changes in their serum protein expression were then determined using surface-enhanced laser desorption/ionization time of flight mass spectrometry(SELDI-TOF-MS) combined with ProteinChip technology.Results The variance analysis showed that significant differences existed among the three groups(P < 0.05) in the relative contents of proteins,with M/Z values of 6417.8,9134.2,15171.9,and 14972.7 Da.The expression of proteins with M/Z values 9134.2 and 15171.9 Da increased in the common psychological training group compared with the control group(P < 0.05).The expression of all four proteins increased in the circulation psychological training group compared with the control group(P < 0.05).The expression of proteins with M/Z values 6417.8 and 14972.7 Da increased in the circulation psychological training group compared with the common psychological training group(P < 0.05).The classification tree formed by proteins with M/Z values 6417.8 and 14972.7 Da classified the 96 soldiers correctly,both in the learning mode and in the test mode.Conclusion Psychological training may upregulate the expression of proteins that are downregulated after stress and may improve the adaptability of soldiers to psychological stress.The effect of circulation psychological training is better than that of common psychological training.
A survey of university museums in Shanghai and their role in World 2010
Li Rong,Andrew Simpson
University Museums and Collections Journal , 2011,
Abstract: World Expo is a grand gathering of the world cultures, during which the host city welcomes people from around the world and also takes this significant opportunity to promote its culture and spirit. Besides the new pavilions of participant countries or regions, the existing museums, galleries, theatres, heritage buildings entice visitors from around the globe to explore and learn about cultural diversity and social harmony. University museums, as an integral part of the cultural scene of any city, can showcase their diversity and project it into this global intellectual and cultural festival. This paper investigates the university museums’ role in presenting cultural information and images during the past World Expo and specifically, surveys eleven university museums in Shanghai and examines how they contributed to the Shanghai Expo 2010.
Feasibility for inhibiting tumor metastasis with Chinese herbal medicines as angiogenesis inhibitors
Huan-rong LI
Zhong Xi Yi Jie He Xue Bao , 2007,
Abstract: : Anti-angiogenesis is one of the important ways to control tumor growth and metastasis, and searching for anti-angiogenesis herbs targeting tumor angiogenesis has become a hot topic in both basic and clinical research for tumor. Utilizing the traditional Chinese medicine theory, authors of this article discussed the feasibility and research of anti-angiogenesis effect of Chinese medicine on tumor. To develop new drugs inhibiting tumor angiogenesis from the Chinese native herbal medicine has an extremely vital significance in blocking tumor invasion and metastasis, as well as improving the patients' prognosis and their survival rates.
Effect of ultra-fine powder technique on dissolution rates of andrographolide and dehydroandrographolide in Andrographis paniculata
QIU Rong-Li
Zhong Xi Yi Jie He Xue Bao , 2004,
Abstract: To investigate the effects of ultra-fine powder technique on dissolution rates of the components in Andrographis paniculata. Methods: High performance liquid chromatography was employed to determine the concentration of andrographolide and dehydroandrographolide in common powdered or ultra-fine powdered Andrographis paniculata. Results: The dissolution rates of andrographolide and dehydroandrographolide in ultra-fine powdered Andrographis paniculata were higher than those of the general powder. Conclusion: Ultra-fine powder technique promotes the dissolution rates of andrographolide and dehydroandrographolide.
Herba Saxifragae cream in treatment of chronic eczema: a randomized controlled trial
Rong XU,Bin LI
Zhong Xi Yi Jie He Xue Bao , 2008,
Abstract: Objective: To explore the clinical efficacy of Herba Saxifragae cream (HS), a compound of traditional Chinese herbal medicine, on chronic eczema.Methods: A total of 42 cases of chronic eczema were randomly divided into HS group (22 cases) and hydrocortisone (HC) group (20 cases). To the HS group, HS was externally applied twice a day continuously for 4 weeks. To the HC group, hydrocortisone was externally applied twice a day continuously for 4 weeks. The total score of symptom score reducing index (SSRI) was calculated before and after treatment in terms of itching degree, lesion shape and lesion area, in the evaluation of the clinical efficacy of HS on chronic eczema.Results: After 2-week treatment, the total response rate of HS group was 77.3%, and the total response rate of HC group was 70.0%. After 4-week treatment, the total response rates were 86.4% and 85.0% in HS and HC groups respectively. There was no statistical difference in total scores of SSRI between the two groups (P>0.05), and neither was there the difference in the score of itching degree, lesion shape and lesion area (P>0.05).Conclusion: Herba Saxifragae cream has the same effect as hydrocortisone in treating chronic eczema.
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