bluuebunny/crossref_metadata_2025 huggingface dataset:
Research on the Integration of Mail System and Digital Campus Platform
Authors: Guo Shao Yong , Zhang Xiao Xiao
Published: August 2014

To integrate mail system with the digital campus platform is a problem that many colleges and universities need to study, through our school integration experience from the early stage of the integrated set to solve the problems existing in the integration process play a certain reference value to the integration of the mail system for other colleges and universities.
The Application of Information Technology in Sports Teaching in Private Universities
Authors: Cui Jiu Gang , Wang Ze Song
Published: August 2014

With the development of society, information technology is increasingly used in education and teaching. Physical education plays an important role in education and teaching, and the teaching process is also integrated into the information technology. In this paper, we focus on the application of information technology in the sports teaching in private universities in the simple discussion.
The Design of Teaching Resources Platform Based on Cloud Computing in University
Authors: Lu Xin , Lu Shan Hui
Published: August 2014

As a new service mode, cloud computing has been widely applied in many fields both at home and abroad. The author introduces the basic principles of cloud computing, and analyses the characteristics of the teaching resources platform based on cloud computing. Finally, a design scheme of teaching resources platform based on cloud computing is proposed in the article, which can solve the problems such as .platform distribution scattered and repeated investment.
Analysis of Factors and Characteristics in Patients with Hand-Foot-Mouth Disease
Authors: Dan Sun , Dan Wei
Published: August 2014

Hand-foot-mouth disease is an infectious disease caused by a variety of enterovirus. The enterovirus 7l is the main pathogen of Hand-foot-mouth disease. The main symptoms are the rash or herpes of hand, foot, mouth, buttocks and other parts, bringing aseptic meningitis, brainstem encephalitis and acute flaccid paralysis and other serious neurological complications and pulmonary edema, pulmonary hemorrhage. Hand-foot-mouth disease harms seriously children's health. Currently, the overall treatment of severe Hand-foot-mouth disease adopts the symptomatic therapy. Early identification of severe and early intervention are the keys to the treatment of children with Hand-foot-mouth disease.
The Research and Design of Computerized Adaptive English Testing System
Authors: Tian Ming Li
Published: August 2014

With the rapid development of technology, today's world has entered the information age by the industrial age. In order to comply with the requirements of the times, the reform of English teaching based on computer networks and this adaptation of College English Test gradually toward the direction of computer adaptive tests corresponding reform. In this paper, the Computer English is aided learning system combined with interested games. Data mining, Memory and forgetting curve are used in this system. The characteristics of Computer English are summarized to analyze the feasibility of this system. So the platform and technology can be selected, the design of the frame of the system and the library of words, exercises, articles can be implemented. In order to make the learning system easier to use and test, standardization stages, the design and implement of the learning system are covered.
The Research of Communication of Chinese Language and Culture under New Technologies
Authors: Zhu Lin
Published: August 2014

The new era brought us a convenient communication. The fragment-timed learning can help many learners. The platform uses the SOA architecture. The learners of fragment-timed can get information through the mobile phone, and SMS can send the platform short content for the fanciers of Chinese language and culture. The smart mobile devices on the popular portable (such as mobile phone, tablet computer, etc). The essence Chinese culture can be tough through blog, Micro message, QQ, SKYPE, FACEBOOK, MSN, etc.
Research on the Status Quo and the Character of the Development of the National Fitness Program
Authors: Zhang Jian Hua
Published: August 2014

Nationwide Fitness national fitness project is a concrete manifestation of the implementation in China is one of the material foundation and site security. The National Fitness Program is the main material carrier by which our government can practice national fitness plan. In this paper, there are future strategies for development of the National Fitness Program in urban communities in China. It is found that implementation of the National Fitness Program has greatly improved people’s exercise conditions, making it more colorful and modernized. The features and problems in practicing the National Fitness Program in urban communities were discussed and strategies were put forward for further development. Health literacy on a regular basis, so that exercise training can understand and master the scientific method, and improve exercise efficiency, reduce security risk, so that physical activity can be into people's life style behavior.
Aneuploidy Alnus formosana Selection and ISSR Analysis
Authors: Zhu Heng Xing , Yi Ding Jie , Tang Jiaia , Huang Xiao Hui , Liang Guo Lu , Feng Da Lan
Published: August 2014

the chromosomal counting was carried out with 51 of annual Taiwan alder (Alnus formosana) by the wall degradation and hypotonic flame-drying method, and 6 aneuploid plants has been selected from these seedings. The viable aneuploid chromosome numbers included 2n=52 (No.4),2n=42 (No.19),2n=54(No.21),2n=50(No.24),2n=56,112 (No.25),2n=52(No.33). Subsequently, the ISSR was taken to analyze the genome of these aneuploid plants,and 5 primers were obtained from 57 which could separate 6 aneuploid plants. And the ratio of polymorphism was more than 78.2%.
Application of Carbon Nanoparticles as Fluorescent Quenchors in Biochemistry
Authors: Wang Li Yong , Han Yuan Yuan , Ding Yu , Li Bo Na , Liu Chao Shan
Published: August 2014

carbon nanoparticles (CNPs ) prepared by electrochemical oxidation method possesses high surface activities, and based on strong affinities between water-soluble CNPs and fluorescent molecules, the mechanisms of fluorescence quenching towards Conjugated Polymers (CPs) was discussed, and CNPs could acted as a nanoquenchor for biochemistry application, such as detection of DNA molecules and other biomolecules by the similar way.
Application of Ultrasonic Treatment on Collecting Recombinant Protein from Yeast
Authors: Dai Jia Kun , Li Yan , Zhuang Hui Hui , Chen Xi , Ma Qi , Xu Sheng Yun , Qin Tao , Wei Ya Hui
Published: August 2014

An appropriate ultrasonication of collecting foreign recombinant protein (human-adiponectin) from yeast was established. Regarded the bioactivity of foreign recombinant protein tested by Western Blotting analysis as parameter, a L9(33) orthogonal array design based on a series of single-factor experiments was employed to optimize conditions for ultrasonic disruption. The results showed that the ultrasonic power of 450 W, duration time on 25 min and operation interval (work time: intermittent time) of 10:10 (s/s) were optimal process with the highest protein bioactivity, and meanwhile, the cell breaking rate was (67.8±2.1) %.
Cardioprotective Effects of Aqueous Extract of Salvia miltiorrhiza on Heart Failure is Related to SDF-1/CXCR4 Axis and Bcl-2 Family Expressions
Authors: Zhang Ji Hong , Shi Meng Qiong , Yang Wen Yan , Liu Guang Yao , Liu Dan Dan , Deng Wei , Qin Hui Lin , Chen Zhi Feng
Published: August 2014

Salvia Miltiorrhizae Bge, a popular Chinese herb has been widely adopted for use in Chinese hospitals for both the prevention and the active management of cardiovascular disease. there is no study on its cardioprotective effects against HF and more importantly, the underlying mechanisms of its beneficial effects by SDF-1/CXCR4 axis remain poorly understood. This study was performed to investigate the protective effects and possible mechanism of aqueous extract of Salvia miltiorrhiza (AESM) on HF rats. In the study, cardioprotective effects of AESM on HF rats was evaluated by herat function, myocardial pathology, myocardial cell proliferation, SDF-1, CXCR4 and Bcl-2 family mRNA expressions. In the experiment, we found that AESM exerted beneficially protective effects on the HF rats, mainly recoverying normal heart function, myocardial pathology and myocardial cell proliferation. The underlying mechanism of these protective effects of AESM appeared to involve improving the SDF-1/CXCR4 axis and Bcl-2 family expressions.
Cloning and Activity Analysis of a New Protease from Arenicola cristata
Authors: Ju Ji Yu , Chu Jin Xin , Zhao Chun Ling
Published: August 2014

The protease gene Arenicola cristata was cloned, sequenced, and expressed in E.coli and the activity of the recombinant protein was investigated. The full-length cDNA of 880 bp consisted of an ORF of 813bp encoding 270 amino acids. This protease contained highly conserved GDSGGP sequence and revealed high homology with trypsin-like proteases of serine family. The recombinant protein for the active form of the protease was purified by affinity chromatography. The activity analysis of the recombinant protein suggested that it was probably a plasminogen activator.
Determination of Vitamin C Content in Saposhnikovia Divaricata by Capillary Zone Electrophoresis
Authors: Liu Hai Xing , Zhang Xiao Ping , Fan Quan Hua , Xu Yang , Huang Ting Ting , Cao Hui
Published: August 2014

In this paper, using capillary zone electrophoresis method determined Vitamin C content in saposhnikovia divaricata. 20 mmol/L borax solution and 20% acetonitrile concentration, 20kV voltage, 254 nm UV detection wavelength was chosen for electrophoretic analysis. Measured vitamin C content in saposhnikovia divaricata were 0.297 mg/g (RSD=5.9%) (n=7).
Effects of Echinomycin on PCNA-Dependent Follicular Development in PMSG-Induced Sprague-Dawley Rats
Authors: Zhang Zheng Hong , Wang Fan , Wu Yan Qing , Tang Zong Hao , Lin Qing Qiang , Tang Ye Dong , Wang Zheng Chao
Published: August 2014

Echinomycin (Ech) is a small-molecule inhibitor of hypoxia-inducible factor-1 DNA-binding activity, which plays a crucial role in the regulation of ovarian functions in mammals. The present study was designed to test the hypothesis that hypoxia-inducible factor (HIF)-1alpha-mediated proliferation cell nuclear antigen (PCNA) expressions contributed to the follicular development in the rat ovary primed by pregnant mare serum gonadotropin (PMSG). Through the histological examination, the decrease of growing and antral follicle numbers was found after Ech treatment both in control and PMSG treated groups. And then PCNA mRNA and protein expressions were found to significantly increase in the ovaries treated with PMSG, and the similar changes were found in HIF-1alpha mRNA and protein expressions, indicating PMSG-induced follicular development may be through HIF-1alpha/PCNA signaling. Furthermore, PCNA expression was found to significantly decrease in the ovaries after Ech treatment, while HIF-1alpha mRNA and protein expression was no obviously changes. Further analysis found the changes of PCNA expression were consistent with HIF-1 activity in the ovaries, further suggesting the regulatory roles in the follicular development. Taken together, these results demonstrated this HIF-1alpha-mediated PCNA expression is one of the important mechanisms regulating the ovarian follicular development in mammals.
Keywords: HIF-1alpha; PCNA; echinomycin; HIF prolyl hyodroxylase acitvity; follicular development
Analysis of the Relationship between Desulfurization Treatment and Green Chemistry of Coal
Authors: Meng Ling Ju , Xuan Zhao Kun , Liu Jin Yu
Published: August 2014

The coal industry belongs to the energy industry of the mainstream, the use of coal in a wide range, the main applications of combustion. However, the coal contains large amounts of sulfur, in combustion process, encountered the incomplete combustion will produce large amounts of sulfur dioxide, serious impact on the natural environment. The coal desulfurization technology can largely reduce this pollution, green chemistry is in the desulfurization technology is established on the basis of a concept. This article focuses on the discussion about coal desulfurization and its relationship to green chemistry.
In Situ Imaging of Cancer Cell via Cancer Aptamer and its Fluorescent Clusters
Authors: Ga Lu , Ai Jun
Published: August 2014

Silver nanoclusters synthesized using aptamer as matrices attracted more attention in the fields of medicine, pharmacology and biology. In this paper, we report a novel approach to sgc-8-C8-templated formation of fluorescent Ag nanoclusters and its application to bioimaging. This was further confirmed by flow cytometry. The cell toxicity (3-[4, 5-dimethylthiazolyl-2]-2, 5 -diphenyltetrazolium bromide, MTT) assay demonstrated that the silver nanoclusters has only little affect on the cytotoxicity to the cells. These results demonstrated that this aptamer-based method for labeling and imaging cellular protein is facile, effective.
Inhibition of HIF-1α Signaling in the Ovaries of Sprague-Dawley Rats with Polycystic Ovary Syndrome
Authors: Wang Fan , Wu Yan Qing , Xiao Kai Zhuan , Zhang Zheng Hong , Wang Qing , Huang Lu Qiang , Wang Zheng Chao
Published: August 2014

Polycystic ovary syndrome (PCOS) is a major public health problem in reproductive-aged women worldwide, but the precise pathogenesis of PCOS remains unclear. Our previous study has clarified that hypoxia-inducible factor-1alpha (HIF-1α) mediated endthlin-2 (ET-2) signaling plays an important role in the ovulatory process in rats. Therefore, the present study used PCOS rat model to test the hypothesis that HIF-1α signaling is inhibited in ovaries during PCOS fromation. By the changed of bodyweight, ovarian histology and ovarian weight, PCOS rat model was further confirmed. And then the present study examined the changes of ET-2 and HIF-1α mRNA levels through real-time PCR finding the significant decrease of ET-2 mRNA level in PCOS rat ovaries was found, while HIF-1α mRNA significantly increased. However, by western blot analysis, the present study found HIF-1α protein expression was significantly decreased, which is consistent with ET-2 protein expression implying HIF-1α-medated ET-2 signaling is vital during PCOS formation. Moreover, the result of HIF prolyl hyodroxylase activity analysis found the decrease of HIF-1α protein may be caused through HIF protein degradation by the increased HIF prolyl hyodroxylase activity. Taken together, these results indicate that HIF-1α signaling is inhibited in PCOS rat model through increase of HIF prolyl hyodroxylase activity suggesting HIF-1α signaling plays an important role in the formation of PCOS. This HIF-1α-mediaged ET-2 expression may be on of the important mechanisms regulating PCOS formation in mammalian ovaries in vivo.
Keywords: HIF-1α; ET-2; HIF prolyl hyodroxylase acitvity; polycystic ovary syndrome
Carbon Nanotube Network in Polymer Nanocomposites: Rheology and Flammability
Authors: Ma Hai Yun , Liu Jia Wei , Han Wen Chuan , Zhao Li Ci
Published: August 2014

ABS/MWNTs nanocomposites were prepared by using melt blending method. Cone calorimeter and ARES were employed to measure flammability and rheological properties. The flammability properties are strongly affected by the network structure. From the results of ARES tests, it is observed that when the MWNTs content is higher than 1 wt%, nanotubes network structure is formed and flame retardancy of the nanocomposites is significantly improved. The rheological percolation threshold, 0.72 wt%, was determined on the basis of a power law relation.
Progress of Molluscan Nacre Proteins Research
Authors: Wang Xue Feng , Liu Zhi Ming , Wu Wen Jian
Published: August 2014

Nacre composing the inner layer of mollusk shell is a typical product of biomineralization. While main components of the organics in nacre are proteins, which mediate its distinctive lamellate structure. Although kinds of nacre proteins have been reported, the whole process of nacre formation is still unclear—especially on molecular level. In this paper, homology, structure, classification and mineralization characters of nacre proteins are elaborated and summarized.
Protective Effects of 5,7,3’,4’-Tetramethoxyflavone on Proliferation of Rat Chondrocytes Induced by IL-1β
Authors: Liu Zhao Wen , Liu Hai Qing , Li Lin Fu , Jiao Liang Yu , Wu Long Huo
Published: August 2014

Osteoarthritis (OA) is a degenerative joint disease that affects millions of people. Currently, there is no effective drug treatment for it. The purpose of this study is to investigate the chondroprotective effects of 5,7,3’,4’- tetramethoxyflavone in isolated cartilage chondrocytes cultured pre-treatment by IL-1β. The results showed that 5,7,3’,4’- tetramethoxyflavone could significantly down regulate the concentration of MMP-13, but up regulate the expression of TIMP-1, increase the proliferative activity of rat chondrocytes.
Protective Effects of Quercetin Derivatives against Hydrogen Peroxide-Induced Oxidative Damage in PC-12 Cells
Authors: Shi Zhen Yu , Li Yong Qiang
Published: August 2014

In order to search for new structural modification strategies on quercetin, we have designed and synthesized a series of quercetin derivatives. Several novel quercetin derivatives displayed potent protect effect on H2O2-induced injury in PC12 cells. In the recent study, we investigated the effect of 3,3',4',5,7-pentahydroxyflavone 2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-4H-1-benzopyran-4-one (HPS5) on the apoptosis of PC12 cells in vitro. We used neuronal PC12 cell line to study the regulation role of HPS5 in H2O2 induced cell apoptosis. MTT assay was used for detection the proliferation of PC12 cells upon H2O2 treatment. PC12 cell nuclear morphological change was detected with Hoechst 33258 staining. The antioxidative capacity was judged by SOD determinations. The protein levels of Bax and Bcl-2 were deteanined by Western blotting. Our results demonstrated that Quercetin derivatives HPS5 can prevent and protect against H2O2-induced injury in PC12 cells. Together, our studies provided new insights activities of quercetin, and may contribute to pharmacological study of quercetin in future research.
Purification of Pomegranate Pericarps (Punica granatum l.) Extracts with Macroporous Resins and Evaluation of Antioxidant Activities In Vivo
Authors: Zhou Ben Hong , Tu Jie , Zhou Jing , Yi Hui Lan , Wu Yue , Liu Gang
Published: August 2014

Punica granatum L. Pomegranate has been traditionally used as a folk fruits for centuries in Oriental countries. It extract and subsequent fractions were used to evaluate antioxidant and related activities of Punica granatum L. It were extracted by 70% acetone, and then purified by HPD-400 macroporous adsorbent resins column. The aim of this study was to verify the antioxidant properties of acetone extracts of pomegranate pericarps and their lyophilized samples, and also to study the relationship between the activity and the contents of the tannins. The effects of natural extracts on microsomal lipid of mice liver and erythrocyte membrane lipid were examined. Vc/Fe2+, Cys/Fe2+induced microsomal lipid peroxidation, UV light induced erythrocyte membrane lipid peroxidation were measured by malondialdehyde (MDA) content with spectrophotometric methods. The natural plant extracts not only diminish the Vc/Fe2+,Cys/Fe2+ induced microsomal lipid peroxidation, UV light induced erythrocyte membrane lipid peroxidation and also showed its activity in a concentration-dependent manner. Our study found that the higher tannins contents showed more effective of antioxidant properties. Keywords: Punica granatum L.; liver microsome; antioxidant activity; Lipid peroxidation
Simultaneous Analysis of 6 Trace Elements in Pomegranate (Punica granatum l.) Juice by ICP-MS after Microwave-Assisted Digestion
Authors: Sun Li Ping , Yin Yan Lei , Wang Chao , Wang Lei
Published: August 2014

The concentrations of essential trace elements such as Mn, Cu, Zn, Fe, Li and Se were determined in pomegranate juice at distinct maturity stages by ICP-MS following microwave-assisted acid digestion. The digestion efficiency was evaluated on the basis of the determination of residual carbon content and residual acidity. 4 mL of 16 mol/L HNO3 + 2 mL of 30% m/m H2O2 solutions were used for the efficient digestion of 3.0 mL pomegranate juice, with a considerable reduction in the residual acidity when compared with a procedure that employed different Digestion procedures. The good agreement between the observed and certified concentrations of the National Tea Standard (China, GBW10016) and the Apple Standard (China, GBW10019) indicate that the developed analytical method was well suited to determine the trace elements contents in similar matrices.
Study on Phenol-Degrading Characteristics of Hybrid Strains and Immobilized Cells
Authors: Yu Cai Hong , Zhang Wan Zhong , Li Chun Yan , Wang Wen Juan , Huang Ying
Published: August 2014

This study aims to enhance the bacteria’s ability to degrade phenol by exploring the phenol-degrading capability of hybrid strains and immobilized cells. Two phenol-degradation strains named as A1 and A2 were isolated respectively.The StrainA1 was identified as Burkholderia, while strain A2 was found to be Bacillus cereuswere. In addition, conditions including inoculum strains , pH value, temperature and dissolved oxygen were tested. . It was shown that: (1)Hybrid strains ( mixed A1 with A2) was better than single strain(A1 or A2) in degrading phenol because of the Synergistic effect. It can completely degraded phenol at the concentration of 300mg/ L, 500mg / L, 700mg / L within 12h, 24h, 48h respectively. (2) The optimum environmental conditions of phenol degradation for hybrid strains culture is 35°C, pH is 7.0, the inoculum strains is 10%. (3) It is beneficial to the degradation of phenol, when the speed of the shaker was improved. (4) Phenol-degradation rate and the tolerance of high concentration of phenol were significantly improved when the A1 and A2 were mixed immoblized.
The Application of High Throughput Microarrays in the Screening Active Ingredients of Traditional Chinese Medicine
Authors: Liu Qing Shan , Zhang Wei Wei , Li Xu , Zhuang Shu Juan , Yin Xiao Ying
Published: August 2014

The accurate detection of traditional Chinese medicine is significant for diagnosis, treatment and control for disease. There is an urgent need for the development of a rapid, simple, and accurate detection method. The high throughput microarray is recommended for use in all researches including those involving rare samples and expensive reagents. Due to the complexity of Chinese medicines interference and multi-target, multi-component, the advantages that sensitivity, reproducibility, and specificity of high-throughput microarrays make it become one of the effective research tools.
Ultrastructural Changes in Cultured Rat Alveolar Macrophage Cells Induced by Fine Particulate Matter
Authors: Xiong Qi , Ru Qin , Chen Lin , Tian Xiang , Yue Kai , Ma Bao Miao , Liu Lu , Li Chao Ying
Published: August 2014

Numerous studies have reported the association between fine particle matter (PM) and lung diseases. Alveolar macrophages (AM) are the key lung cells with strong capability of eliminating external particle pollutant. Therefore the prevention of AM from apoptosis induced by fine PM is vital for clinical treatment of increased pulmonary diseases. This study aims to investigate the ultrastructural changes in cultured AM induced by fine PM, which can directly reflect the effect of fine PM on AM apoptosis. In addition, Standard Reference Material for fine PM (SRM 2786) was used in current study due to its relative uniform composition. The results in this study suggested that SRM 2786 induced morphology changes in AM in a dose-dependent manner by transmission electron microscope observation, including nuclear fragmentation, chromatin aggregation, increased numbers of lysosomes and so forth. Consequently, this study provides reliable evidence for us to further investigate the apoptotic mechanism of AM induced by fine PM treatment in the future.
Confocal Micro-Raman Spectroscopic Analysis of the Variants of the Erythrocyte in the Rare Earth Poisoned Rats
Authors: Li Jin Yu , Long He Ming , Chen Di Ling
Published: August 2014

Rare earth poisoning is becoming a more and more serious problem for the people, even worse there were no effective early diagnosis, prevention and treatments for that. In this study, the confocal micro-Raman spectroscopy was success used to monitor the variations of Raman spectra from the erythrocytes during the rare earth poisoning in mice, and the intensity heavily depended on the concentration, especially peaks at 756 cm-1(tryptophan), 1224 cm-1 and 1344 cm-1(CH2/CH3 stretch), 1548 cm-1(amide II) and 1566 cm-1(amide II) which can be as the diagnostic biomarkers.
Determination of Brucine in Strychnos by Capillary Electrophoresis
Authors: Liu Hai Xing , Chen Qiang , Huang Ting Ting , Fan Quan Hua , Wang Lin Tong , Cao Hui
Published: August 2014

A capillary electrophoresis method has been developed for the determination of brucine in strychnos. The analytical conditions were optimized after investigating the effects pH and concentration of buffer. Under optimized conditions (20 mmol/L NaH2PO4-Na2HPO4, pH=6.0, 20 kV, 254 nm,), the brucine was separated in 5 min.
Extraction Procedure and Partial Characterization of Polysaccharide from Eucheuma gelatinae
Authors: Tang Juan , Liu Dong Yue , Kong Zhen , Liu An Jun
Published: August 2014

Eucheuma is a species of red alga and one of the primary sources of carrageenan. It utilizes floridean polysaccharides as food reserves. Industry has more concerns on Eucheuma is its carrageenans, however, most of other materials in Eucheuma has gone down the drain. Eucheuma gelatinae contains a certain amount of polysaccharides, which has various biological activities. In this study, alkaline extraction of acidic polysaccharide from Eucheuma gelatinae was applied.The polysaccharide structure and monosaccharide composition were also investigated by IR and GC.
The Extracting Technique of Effective Materials from CTM Based on Phonochemistry
Authors: Yang Lei , Wang Bao Qiang , Li Yong Hong , Deng Ling
Published: August 2014

Ultrasonic biological effects are reactions between ultrasonic energy and biological tissue. The reactions will promote the separation of medical materials from some herbs. The research contents: (1) the mechanism of medical-component extraction of CTM based on ultrasonic cavitations; (2) the experiment research on optimization of extraction technique of CTM. The research methods: (1) to explain the mechanism, the dynamics and interaction between ultrasound and plant tissues; (2) combining with the experiments, the extracting effect and energy saving are used for evaluating the technique. The research results: (1) the optimized ultrasonic frequency is 25±10kHz, the power density in the space in the device should be 0.5~1.2W/cm3, the medium temperature should be 30~60°C. (2)Comparing with the boiling technique, the extracting effect of the ultrasonic technique is increased by 15%~30%, energy is saved by 500%. The experiment results are good tally with the theories.
Dynamic Analysis of a 3-DOF Parallel Mechanism Based on Kane Equations
Authors: Song Mei Wei , Liu Huan , Chen Wu Yi
Published: August 2014

The Kane equations were applied in the dynamic analysis of a 3-DOF parallel mechanism, whose sub-chains consisted of three pairs of parallel legs. According to the characteristic of the parallel mechanism, it was simplified to 3PSS structure. Dynamics equations were derived based on the kinematical analysis. Computing simulation example was presented through MATLAB programming and verified by ADAMS simulation. The results showed that the approach was correct. It provides theoretical reference for the actual experiment and the choice of subsequent control method.
Failure Analysis and Welding Repair for Water Wall Connection Tube Burst of SA210C Steel
Authors: Zheng Xiang Feng , Wu Nan , Jiang Yun Jian , Li Wen Bin , Hao Xiao Jun , Ke Hao , Li Wen Peng , Dai Xiao Hao
Published: August 2014

Through methods, such as microscope analysis, mechanical analysis, chemical analysis, metallography examination etc, the causes resulting in water wall tube bursting of 300MW station boiler have been analyzed. The raw material defects is the primarily inducement of bursting failure. In welding tube, the measures of reducing residual stress, such as lower welding heat input, reducing thickness of welding layer and so on, were taken. The welding repair succeeded greatly.
Numerical Investigation of Static and Dynamic Aerodynamic Characteristics for a Guided Projectile with Fin Slot
Authors: Sun Hua Dong , Yu Jian Qiao , Mei Yue Song , Liang Chong
Published: August 2014

The flow field of a cruciform finned guided projectile with and without fin slot was simulated by the mean of CFD(computational fluid dynamic) numerical method. The characteristics of pressure field distribution without and different widths slots were calculated and compared. The influence of fin slot to the aerodynamic characteristics such as drag, lift, roll moment, pitch moment static aerodynamic characteristics as well as pitch, roll damping moment dynamic aerodynamic characteristics were emphasized in different angle of attack. The numerical results were certified by the good agreement between the wind tunnel test results. Important reference was provided to theoretical research and engineering for guided projectile shape design.
Practical 4.4KW ZVZCS Full-Bridge Power Converter Design
Authors: Sun Bao Wen
Published: August 2014

Paper presents a practical circuit topology and analyzes the converter working process. The converter leading pipe is used MOSFET to achieve a zero voltage turn-on and turn-off, and lagging using is used IGBT to achieve a zero current turn-on and turn-off. After the topology circuit parameters selected by the relevant waveform acquisition, the converter design is verified correct. By running on the power supply operation, converter excellent performance meets the market requirements.
The Motor Temperature Rise Test System Based on Magnetic Powder Dynamometer
Authors: Zhang Zhen Hai , Chi Chang Chun , Liu Jiao Jiao , Lian Zheng Bing , Shao Shi Liang
Published: August 2014

The motor temperature rise is an important indicator for the evaluation of motor performance and the development of motor testing system put forward higher requirements to data acquisition and processing. In view of this, the motor temperature rise test system based on the magnetic power dynamometer which acted as a load was studied. The overall structure and the software algorithm of the system were introduced. The existing synchronous sampling method was put into use in data acquisition system of the motor temperature rise test so that it can automatically test the motor temperature rise. Combining with the instance, proves the accuracy of this method. This method has the superiority of reducing errors and improving accuracy by combining with the instance.
Novel N-3 Compressor for Low-Power Booth Multiplier
Authors: Wang Shi Heng , Xia Yin Shui
Published: August 2014

Several N-3 compressors are proposed against the limitations of conventional compressors on power optimization. Larger module based N-3 compressors provide more space for EDA tools to make the full use of various strategies and low-power cells. The number of modules and logical boundary can be reduced when the compression tree is constructed by N-3 compressors. The partial products of the Booth multipliers 48X48 and 64X64 are compressed by different compressors. The results show that, under same constraint conditions, the operating speed of compression tree constructed by N-3 compressors is ensured and a significant reduction of power is obtained.
Status Analysis of Quality Prediction for Automotive Injection Molded Parts
Authors: Wang Chun Neng , Fan Xi Ying
Published: August 2014

Injection molding is a very complex multi-factor coupling effect and a nonlinear dynamic process. Therefore, under the influence of nonlinear and multi-factor, injection molding goal is to effectively predict and guarantee the quality of injection molded parts. In this paper, the common methods used to predict the quality of injection molded parts are introduced, including: Taguchi method, artificial neural network, response surface method, radial basis function method and Kriging model method. Research progresses as well as application examples of forecasting methods at home and abroad is summarized. Besides, the development trend of the injection molding quality prediction is discussed.
Stress and Deformation Analysis of Concrete Face Rockfill Dam Based on ABAQUS
Authors: Fang Chun Hui , Wang Xue
Published: August 2014

A new analysis method of stress and deformation of concrete face rockfill dam is established based on ABAQUS. This new approach includes secondary development of Duncan E-B material model and secondary development of Goodman frictional model of contact between concrete face and cushion. Meanwhile, contact characteristics is considered among concrete face and between concrete face and plinth. According to dam prototype observation, the analytic results are in good agreement with calculation results from the practical engineering, which indicates that the analysis method can be used widely.
An Improved Calibration Algorithm for Low-Cost Laser Triangulation-Based Sensor
Authors: Lin Liu , Zhao Yong Ting , Qiu Zi Cheng
Published: August 2014

The key to decide range accuracy in the low-cost laser triangulation-based system is the calibration of structural parameters. According to the problem that the curve fitting based on Least Square Method cannot accurately determine parameters in the case of not knowing the range of parameters, an improve algorithm is proposed for simplifying mathematical model and determining the range of the parameters.
Components Association Mechanism Supporting Requirements Tracing
Authors: Wang Hui Ling , Peng Li , Ding Yu Cheng
Published: August 2014

Requirements Traceability has a very important role in the entire application development lifecycle. As for the problem of manual creating requirement traceability relationship time-consuming and error-prone effort problem, this paper proposed a new component-based dynamic requirement traceability model. The model incorporates the requirements specification model and component functionality tree model to format requirements documents and component library. Establish requirements traceability relationships through mutual matching between component facet functional items and requirement documents. Validate requirements traceability feasibility and efficiency through multiple systems and component requirements documents, the experimental results provided by the implemented system show that the model is valid, and efficiency and accuracy have been improved to some extent compared with the conventional information retrieval model.
Effect of Control Parameters of Secondary Jet on Fluidic Thrust Vectoring
Authors: Li Li , Wang Dong Ping , Saito Tsutomu
Published: August 2014

The flow field was simulated in a 2D convergent-divergent nozzle, for fluidic thrust vectoring with N-S method. Based on the specific design, the effects of control parameters of secondary jet injection is investigated, and a method is proposed to calculate the initial state of secondary jet, which is different from original hypothesis of stagnation. The results showed that the two methods have closed results and the stagnation hypothesis is suitable for the calculation of the initial state of secondary jet.
Research on the Application of Wavelet Neural Network in Temperature Control System
Authors: Yong Gu
Published: August 2014

A rapid learning algorithm was put forward to realize complex system modeling and self-adaptive control with uncertainty, high nonlinear and lame time-delay. Merits of internal model control were combined, such as simple design, food regulation capacity, high robustness and the ability to eliminate the unknown disturbance to construct a internal model control system based on wavelets neural network, which was characterized by high robustness and quick response speed and then it can brim food control performance when controlled objects vary in a wide range. Finally, it was triumphantly used in simulation of the superheated steam temperature reduction control system of 500 MW unit and food performances are obtained.
System of Environment Monitoring Based on Internet of Things
Authors: Qin Xu
Published: August 2014

For the problems of the environment, it is important to monitor and manage the environment. The system of environment monitoring based on the Internet of Things (IoT) technology is proposed, which meets the need of the practical application. The central discussion is about the application of the self-organization mechanisms of networks and the wireless location technology. The system is composing of network nodes including the sensors, the wireless acquisition, the wireless coordinator and the information managing software. The self-facture nodes implement the standard of the zigbee settlement for its strongpoint of the low power consumption and the low cost. The results show that the system of environment monitoring has good performance such as the real-time data collection, the wireless transmission and the intelligent monitoring, so the system is feasible to the practical application.
Measurement of Passive Rubidium Frequency Standard Left Field and the Assessment of the Impact of Frequency Stability
Authors: Zhan Zhi Ming , Lei Hai Dong
Published: August 2014

In this paper, we proposed a measure method of the passive rubidium frequency standard system in residual field bubble chamber volume. A new method is employed. We assess the impact of size on the amount of remaining field frequency stability by changing the ambient temperature.
The Development of Flow Controller Based on RF Card
Authors: Ma Qiu Fang
Published: August 2014

An IC card controller based on the low-power microprocessor MSP430F1611 and RF card operation module YMG600 is developed to construct the flow prepayment system for the existing flowmeters. Considering the compatibility with the original system, the hardware with multiple interfaces is put forward on the analysis of output signal of the widely used flowmeters. It is focused on the realization of the flow signal processing circuits and IC card management module. In order to improve the safety of the system, the 3DES algorithm is adopted to encrypt the flow data. Furthermore, a linkage mechanism between the IC card controller and computer monitoring system is put forward to realize the real-time monitoring. Finally a serial of tests including flow sample and billing, it shows that the controller is characterized with good compatibility, high safety and practicability.
The Optical Path Closed-Loop Control System
Authors: Xing Fei
Published: August 2014

The optical path closed-loop control system mainly applies to large high power equipment that makes the optical path adjust automatically. The paper introduces the principle of optical path closed-loop system. In addition, it introduces the laser spot recognition algorithm and the PC real-time monitoring system. After the test, the system not only can accurately calculate the position of spot, but also realize the monitoring and adjustment of spot.
One-Pot Synthesis of a Novel 3D CuO Microstructure with Excellent Electrochemical Hydrogen Capacity
Authors: Li Ying , Yin Yong Kui , Rong Sheng Zhong , Cui Xin Yu , Jin Ge , Li Miao Jing , Jin Xiu Dong
Published: August 2014

A novel flocculus-like CuO microstructure exhibiting excellent electrochemical hydrogen capacity of 210 mAh/g were fabricated using Cu (OH)2 as precursor. By altering the initial concentration of NaOH, novel butter-like and flower-like CuO microstructures without electrochemical hydrogen capacity were also obtained. Field emission scanning microscopy (FESEM) and X-ray power diffraction (XRD) were characterized the as-obtained products. The dosage of NaOH plays a vital role in controlling the morphology, which affects electrochemical hydrogen capacity of final products.
Research on Electronic Automotive Combined Instrument Based on CAN Bus
Authors: Luo Zhen Hua , Jiang Fen
Published: August 2014

With the fast developing about automobile electric technology, the advanced communication-network technology CAN-Bus is used in the designing of automobile instrument panel, and takes place of the traditional mechanical and electrical design. In this paper, a design of electronic automobile instrument has been introduced. The MCU is designed as a controller. In the design, traveled distance is displayed by LCD, revolving speed of wheels, running speed of car, water temperature and rest fuel amount is displayed by pointer driven by stepper motor. The automobile BUS-IP use two wires to communicate with the other CAN node, realize the resource using in common among the ECU. It has become the dominant technology in the future time. The content of thesis divides into hardware and software. CAN signal can be used to communicate between the power and driving system, use on-off circuit to control the automobile body information.
Design on Control System of Automatic Sole Edge Grinding Machine Based on PLC
Authors: Long Shu Ping
Published: August 2014

The enterprises are currently facing the problem of low efficiency and poor quality when they are grinding sole edge with Manual Machining,should be researched and developed so as to solve the problem.It can achieve the goal of full-automation by PLC controlling the electrical system and pneumatical system.
2D DOA Estimation Using Sparse Representation of Higher-Order Power of Covariance Matrix
Authors: Luo Zheng , Yu Fei , Wu Lin , Liu Yuan
Published: August 2014

A novel two-dimensional (2D) direction-of-arrival (DOA) estimation algorithm utilizing a sparse signal representation of higher-order power of covariance matrix is proposed. Through applying the higher-order power of covariance matrix to construct a new sparse decomposition vector, this algorithm avoids the estimation of incident signal number and eigenvalue decomposition. And the hierarchical granularity-dictionary is studied, which forms the over-complete dictionary adaptively in the light of source signals’ distribution. Compared with MUSIC and L1-SVD, this algorithm not only provides a better 2D DOA performance but also possesses the capability of coherent signals estimation. Theoretical analysis and simulation results demonstrate the validity and robust of the proposed algorithm.
A Multi-Weights Ant Colony Algorithm for Solving Optimal Path in Tourism
Authors: Liu Yu Zhong , Yu Hua Ping , Huang Bing , Zhang Yuan Fang
Published: August 2014

Optimal path selection is a fundamental problem in tourism, the influence factors of which only including the rout length, but also including weather, transportation and the scenery of attractions and other relevant factors. Therefore, route selection only based on the route length cannot capture the actual requirement. The paper studies the multi-weights (such as weather, route length, attractions scenery and etc.) in route selection, and then proposed an improved ant colony algorithm based on multi-weights (ACA-MW), which uses the multi-weights ant and the genetic variation to search optimal path. Simulated experiment of the ACA-MW shows high performance, the improved algorithm is effective. In tourism, ACA-MW can do well in optimal path selection problem.
A Novel Image Encryption Algorithm Based on Cellular Automata and Chaotic System
Authors: Cheng Peng , Zhao Huai Xun
Published: August 2014

This paper introduces a novel image encryption scheme based on chaotic maps and toggle cellular automata (TCA). In confusion stage, the proposed scheme utilizes logistic map to construct a nonlinear sequence for scrambling the plain-image. Then in diffusion stage, TCA is constructed by setting up the inversion rule and the image which has been processed by chaotic sequence is encryption again by using the TCA iteration method. Theoretical analysis and experimental results demonstrate the proposed algorithm achieves a high security level and processes good performance against common attacks like differential attack and statistical attack.
Analysis of Motor Imagery EEG Based on Hilbert-Huang Transform
Authors: Zhu Xiao Lin , Liu Jian Ping , Zhang Xiao Nan
Published: August 2014

Based on Hilbert-Huang Transform (HHT) theory, we present a method to analyze the electroencephalogram (EEG) signal of right and left hand motor imagery. Firstly, EMD method decomposed EEG signal into a group of intrinsic mode functions (IMFs). The first three IMFs were extracted to denoise. We adopt endpoint Mirror Extension method to relieve the influence on subsequent processing brought by endpoint effect. According to the Hilbert transform, we can obtain the time-frequency distribution. The energy of the first three components is selected as the input of SVM. The results show that EMD is an efficient method to analyze the EEG signal. The proposed method obtains an ideal recognition rate.
Association Rules Mining Based on Adaptive Fuzzy Clustering Algorithm
Authors: Guo Jia Mei , Pei Yin Xiang
Published: August 2014

Association rules extraction is one of the important goals of data mining and analyzing. Aiming at the problem that information lose caused by crisp partition of numerical attribute , in this article, we put forward a fuzzy association rules mining method based on fuzzy logic. First, we use c-means clustering to generate fuzzy partitions and eliminate redundant data, and then map the original data set into fuzzy interval, in the end, we extract the fuzzy association rules on the fuzzy data set as providing the basis for proper decision-making. Results show that this method can effectively improve the efficiency of data mining and the semantic visualization and credibility of association rules.
Discrete Spectrum Error Analysis of Carrier Signal
Authors: Yang Ming Ji , Ding Hui , Jiang Zhi Yu
Published: August 2014

In the face of the carrier signal is discrete spectrum analysis, frequency, amplitude and phase are likely to produce the error problem. Based on discrete spectrum correction theory, derivation of the carrier signal causes the error when the discrete spectrum analysis and using the generalized cosine window for the error of the discrete spectrum analysis.
Discussion on Application of Digging out the Image in Photoshop Image Processing Method
Authors: Wang Yue Hong
Published: August 2014

Image processing has been widely applied in various fields. Photoshop image processing software is the best one for the enthusiasts. At present, more and more people are interested in using Photoshop to create some characteristic pictures, while the key and difficulty part of image processing in Photoshop is matting method (create the image area).In order to help the image processing enthusiasts to accomplish in the process of image processing and create a more beautiful image, this paper introduces several commonly used matting methods in Photoshop and discusses in detail the scope of application, the using methods, the advantages and disadvantages of them.
Face Recognition Classifier Design Based on the Genetic Algorithm and Neural Network
Authors: Li Na , He Peng , Zhao Qian
Published: August 2014

In the course of the face feature match, many classifiers have been designed. The neural network is usually selected as a classifier because of its validity and universality, whereas its training time, training epochs, and its convergence, all are not satisfied to us. It is often influenced by the author’s experience. In the case, a collaborative genetic algorithm and neural network is presented as a new face recognition classifier. The one thing is to train the NN weights by the GA until the stopping criterion is met, and the next thing is to use the BP algorithm to continue to train the network. The training time and training epochs have been improved in the experiment of the face recognition on ORL face database. The simulation shows the validity of methods.