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Articles by BIN CHEN
Total Records ( 6 ) for BIN CHEN
  Bin Chen
  The new technology makes people to enter the era of global information dissemination and social education is also facing huge changes. In this changing technology, the use of computer and network technology as a core education plays a key role. Aerobics is one of the compulsory courses opened in the college sports teaching process. Its move has many changes and it has music dynamic. For students’ temperament and physique has very important role, especially be favored for female student. Obviously, the traditional aerobics was unable to adapt to the needs of modern education reform. So many schools begin to use the advanced science and technology actively to supply and enrich the insufficiency of traditional teaching method. The use of multimedia network technology can play an effective self-learning ability of students in the learning process. It can help students to master and apply the continuous technology and knowledge. Students can continuous develop the skills and enhance the aesthetic education. This method can support student collaborative and autonomous inquiry learning. It also can stimulate students to aerobics teaching enthusiasm and interest; exert the student's own personality. This paper analyze the disadvantage of traditional aerobics teaching, expounds the concept and characteristic of multimedia and aerobics teaching. And the focus is the analysis of multimedia technology which has positive meaning to the aerobics teaching.
  Bin Chen , Zhijian Wang , Mingrong Mao and Ningze Shen
  Job dispatching and resource management are the most import factors which decide the performance of the cloud computing environment. Job dispatching can be devide into User dispatching and Task dispatching based on dispatching model. There are vatious significant issues in resource management, such as maximum computing performance and green computing, aim to accomplish tasks with the lowest cost. Dispatching and management objects must be collected by system statistic information as reference. The Performance Agent and Server Interface Method (PASI) has been collected the row data for the cloud. The commom security technology applied in the cloud are passive defense methods, real-time active monitoring or Deep Packets Inspection (DPI). The main purpose is to realize active inspection and defense. This study proposes an effective framework to enhance comprehensive performance guideline of cloud computing center. The framework is built based on the PASI integrate with DPI module and put forward a job dispatching and resource management module based on safe PASI. Results of the experiment indicate that the model effectively improve the efficiency of the cloud environment.
  Haozhu Chen , Yunqin Chen , Xuejuan Jin , Xiaojin Zhang , Jun Zhou , Bin Chen , Baishen Pan , Aijun Sun , Yunzeng Zou and Junbo Ge


Dyslipidemia is considered one of the most important risk factors for coronary heart disease.


This study was designed to analyze the blood lipid levels of different age inhabitants in urban Shanghai in the 2000s and compare the results with those in the 1970s (1385 subjects), 1980s (3302 and 2399 subjects), and 1990s (3647 subjects).


Blood samples were collected from 2197 persons, as well as 200 newborns. The levels of total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), and high-density lipoprotein cholesterol (HDL-C) were measured.


The TG level in adults >20 years of age was remarkably greater than those in the 1990s, but the TC level changed little and the LDL-C level apparently decreased. The mean HDL-C levels in adult women were similar to those in the 1970s and significantly greater by approximately 10 mg/dL than those in the 1990s (P < .001), whereas those in adult men >30 years of age were still low and were lower by about 10 mg/dL than the corresponding age groups in women. In adults aged 30-39, 40-49, and 50-59 years, the proportion of hypertriglyceridemia (TG levels ≥200 mg/dL) was 18.24%, 17.96%, and 21.88% in men and 2.70%, 7.08%, and 8.55% in women, respectively.


Currently, hypertriglyceridemia and low HDL-C in middle-aged men older than 30 years of age have become a growing problem.

  Qixian Zhang , Liansheng Jiao , Changsheng Shan , Peng Hou , Bin Chen , Xiaoyu Xu and Li Niu
  A novel series of compounds with different counter anions, i.e. 1-lcub[4-(4-nitrophenylazo)phenyloxy]rcubalkyl-3-methyl-1H-imidazol-3-ium bromide salts (Cn , n = 3, 6, 10) and tetrafluoroborate salts (Dn , n = 3, 6, 10), were synthesised by the incorporation of an imidazolium group into paraffin side chain-terminated 4-nitroazobenzene derivatives. Their chemical structures were determined by 1H NMR, 13C NMR, UV spectroscopy and elemental analysis. The thermotropic liquid crystalline properties of these materials were further studied by polarising optical microscopy, wide-angle X-ray diffraction and differential scanning calorimetry. The results show that Cn and Dn (n = 6, 10) exhibit smectic liquid crystalline phases. The ionic liquid groups play an important role in forming the smectic layer structure, via enhancement of the thermal stability of the smectic state.
  Qixian Zhang , Changsheng Shan , Xiaodan Wang , Lili Chen , Li Niu and Bin Chen
  Imidazolium-substituted azobenzene liquid crystal derivatives were synthesised and their chemical structures were determined by 1H NMR, 13C NMR and UV spectroscopy and elemental analysis. The liquid crystalline properties pf the new compounds were investigated by differential scanning calorimetry, polarising optical microscopy and powder X-ray diffraction. The monomer DC10 was found to exhibit a monolayer smectic C (SmC) phase with schlieren texture on both heating and cooling. The effects of ionic interactions as well as the length of the alkyl chains on the mesophase are discussed. The results indicate that ionic interactions between imidazolium groups are the driving force for the formation of the monolayer SmC phase, the thermal stability of which is enhanced.
  The petrogenesis and U-Pb SHRIMP zircon ages of the Late Cretaceous Sariosman pluton in the Eastern Pontides is investigated by means of whole-rock Sr-Nd isotope data with field, petrographic and whole-rock geochemical studies. The bulk of the I-type Sariosman pluton consists of biotite-hornblende monzogranite, with minor quantities of porphyritic hornblende-biotite monzogranite. The biotite-hornblende monzogranite contains a number of mafic microgranular enclaves (MMEs) of quartz monzodiorite composition. U-Pb zircon sensitive high-resolution ion microprobe dating (SHRIMP) dates the magma emplacement age of the biotite-hornblende monzogranite at 82.7±1.5 Ma. The rocks of the pluton show high-K calc-alkaline, metaluminous to slightly peraluminous characteristics, and are enriched in large ion lithophile elements (LILE) and light rare earth elements (LREE) relative to high field strength elements (HFSE), thus displaying features of arc-related granitoids. Chondrite-normalised rare earth-element (REE) patterns have concave upward shapes (La/cn/Lucn= 10.1-17.4) with pronounced negative Eu anomalies (Eu/Eu*= 0.61-0.80). Initial εNd values vary between -3.0 and -4.1 and initial 87Sr/86Sr values between 0.7062 and 0.707. The MMEs are characterised by higher Mg-numbers (27-29) and lower values of both SiO2 (56-58 wt percent) and aluminium saturation index (0.9-1.0), compared to the monzogranites. Fractionation of plagioclase, hornblende and Fe-Ti oxides played an important role in the evolution of the Sariosman pluton. The crystallisation temperatures of the melts ranged from 700 to 800 °C and a relatively shallow intrusion depth (~2 to 7 km) is estimated from the Al-in-hornblende geobarometry. The geochemical and isotopic compositions of the Sariosman pluton suggest an origin through dehydration melting of mafic lower crustal source rocks.
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