bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect of Tranexamic Acid after Cardiac Surgery in Children
Authors: Hassan MK , Hasan KA , Salam ABMA , Razzak A , Ferdous S , Maruf MF , Ahmed MU , Haq N , Ahsan NAK
Published: August 2011

Background: The antifibrinolytic drug tranexamic acid (TA) decreases blood loss in Pediatric patients under going cardiac Surgery. However its efficacy has not been extensively studied in children. Method: We examined 750 children under going cardiac surgery form 2004 to 2007 in National Institute of Cardiovascular Diseases (NICVD), 379 children in the Tranexamic Acid group (TA) and 371 included in placebo (P) group. After induction of anesthesia and prior to skin incision, patients received either tranexamic acid (10mg/kg followed by 1mg/kg/hr) and saline placebo. After admission to intensive care unit total blood loss and transfusion requirements during the first12 hours were recorded. Result: Children who were treated with tranexamic acid had 24% less total blood loss (26±7 vs 34±17 ml/kg) compared with children who received placebo (p<0.05). Additionally, the total transfusion requirements, total donor unit exposure and financial cost of blood components were less in the tranexamic acid group. Conclusion: Tranexamic acid can reduce perioperative blood loss in children undergoing cardiac surgery.Keywords: Tranexemic acid; Cardiac surgery; Post operative; bleeding DOI: http://dx.doi.org/10.3329/cardio.v1i2.8127 Cardiovasc. j. 2009; 1(2) : 189-192
Percutaneous Aortic Valve Replacement - A Review
Authors: Momen A , Majumder AAS , Ali M , Ullah M
Published: August 2011

DOI: http://dx.doi.org/10.3329/cardio.v1i2.8128 Cardiovasc. j. 2009; 1(2) : 216-225
Acute Myocardial Infarction after Dog Bite: A Case Report
Authors: Rahman A , Khan A , Hasnayeen SM , Islam AKMM
Published: August 2011

Acute myocardial infarction (AMI) after dog bite is rare. Capnocytophaga canimorsus , a Gramnegative, commensal organism of canine buccal cavity may cause bacterimia and sepsis. Hypotensioninduced stasis, septic emboli to the coronary artery, endothelial dysfunction and plaque vulnerability induced by acute inflammation may lead to acute coronary syndrome in this situation. Isolation of the bacteria may be challenging due to fastidious nature of the organism. Management is as per standard protocol. However, appropriate antibiotic therapy is crucial. Like many other parts of the world, dog bite is endemic in Bangladesh. The case presented here reminds us of the need for preparedness to deal with myocardial infarction associated with dog bite effectively. Key words: Myocardial infarction; Dog bite; Capnocytophaga canimorsus.   DOI: http://dx.doi.org/10.3329/cardio.v1i2.8178 Cardiovasc. j. 2009; 1(2) : 231-233
Pacing in a Woman with Full Term Pregnancy: First Case Report in Bangladesh
Authors: Chowdhury AW , Muttalib MA , Islam AEM Masharul , Choudhury AK , Faruk M , Begum K , Siddiq AB , Dutta S , Giasuddin RS , Mondol DK , Kamal AHM , Shakawatullah M
Published: August 2011

A 19-year-old primigravida was diagnosed to have complete heart block (CHB) during her antenatal checkup at 36 weeks. The patient had history of syncope a few years back. She was referred to the National Institute of Cardiovascular Diseases (NICVD). A temporary pacemaker was implanted at NICVD. She was then referred to Dhaka Medical College Hospital (DMCH), where a baby girl was delivered by cesarean section. A permanent pacemaker was implanted later at NICVD. To our knowledge this is the first case report of pace maker implantation in a pregnant woman from Bangladesh. Key Words: Congenital complete heart block; Pregnancy; Pacemaker.   DOI: http://dx.doi.org/10.3329/cardio.v1i2.8179 Cardiovasc. j. 2009; 1(2) : 237-239
Systemic Therapy for Advanced Gastric Cancer: A Clinical Practice Guideline
Authors: MacKenzie M. , Spithoff K. , Jonker D. ,   the Gastrointestinal Cancer Disease Site Group
Published: August 2011

Question: What is the optimal chemotherapy regimen in advanced gastric cancer? Perspectives: Gastric cancer is the second leading cause of cancer mortality worldwide. Despite low incidence rates for gastric cancer in Ontario, the overall prognosis is bleak, with 5-year survival rates of approximately 23% in Canada. Even with the considerable body of research available on chemotherapy for advanced gastric cancer, uncertainty remains. There is no recognized standard treatment, and there appears to be geographic variation in practice. Outcomes: Outcomes of interest were overall survival, objective response rate (complete plus partial responses), time to disease progression, adverse effects, and quality of life. Methodology: After a systematic review, a practice guideline containing clinical recommendations relevant to patients in Ontario was drafted. The practice guideline was reviewed and approved by the Gastrointestinal Disease Site Group (gi dsg) and the Report Approval Panel of the Program in Evidence-Based Care. External review by Ontario practitioners was obtained through a survey, the results of which were incorporated into the practice guideline. Practice Guideline: The gi dsg makes the following recommendations: • To improve survival, a platinum agent should be included in any combination chemotherapy regimen. • Within a combination chemotherapy regimen, oral capecitabine is preferred over intravenous 5-fluorouracil (5fu)—that is, epirubicin–cisplatin–capecitabine is preferred over the prior standard regimen, epirubicin–cisplatin–5fu (ecf). • Epirubicin–oxaliplatin–capecitabine (eox) is a reasonable alternative to ecf. The choice between ecf and eox should be based on patient preference. • Trastuzumab in combination with cisplatin and a fluoropyrimidine (5fu or oral capecitabine) is recommended for advanced gastric cancer positive for the human epidermal growth factor receptor 2 (her2/neu).
Kissing: Hullo hpv
Authors: Touyz Louis Z. G.
Published: August 2011

There are at least 5 types of kisses, including ges-tural, cultural, osculum, basium, saviolum, and oro-genital.[...]
Studies on Lime Sludge for Partial Replacement of Cement
Authors: Maheswaran S. , Ramesh Kumar V. , Bhuvaneshwari B. , Palani G. S. , Iyer Nagesh R.
Published: August 2011

Utilization of industrial and agricultural waste products in the construction industry has been the focus of research for economical and environmental reasons. In this paper, Lime sludge, a paper and pulp industry waste product, has been chemically, physically and thermally characterized, in order to evaluate the possibility of its use as construction materials. X-ray Fluorescence and X-ray diffractometry studies for the determination of composition and presence of crystalline material and Thermo Gravimetric Analysis to identify the phase transition of lime sludge, as well as physical and mechanical properties and its pozzolanic activity have been conducted. It is concluded that the acceptance of this waste product by the construction industry could be decided depending on the application, keeping in view of the limitations on the mechanical strength.
Compression Tests on Large-Scale Concrete-Filled GFRP Tubes
Authors: Xie Pan
Published: August 2011

To enable reliable prediction of the stress-strain behaviour of GFRP-confined concrete, the mechanical properties of GFRP tube needs to be properly understood and modelled. This paper presents test results of an experimental investigation carried out on 400-mm-diameter and 800-mm-height concrete-filled fiber reinforced polymer tubes. A total of four GFRP-confined concrete columns were subjected to concentric compression to identify the properties of GFRP tube. The performance of GFRP tubes in the tests were compared with the calculation results based on the classical lamination theory. In addition, more in-depth interpretations of the test results and further tests need to be refined in future tests to better capture the properties of the GFRP tube.
The Design of Image Database about Corrosion Damage of Aluminum Alloy
Authors: She Dong Mei , Lv Sheng Li , Zhang Wei , Tong Xiao Yan
Published: August 2011

As the data of aluminum alloy corrosion is increasing, the experimental data and results of corrosion damage are collected in this paper, thus the corrosion damage draft at different corrosion time and temperature are obtained. The Oracle 10g is introduced as basic database to design the image database of aluminum alloy corrosion damage. The front makes use of the asp.net to realize the web information displaying, meanwhile the corrosion damage database of aluminum alloy is realized the image data storage and retrieval. This provides a great convenience for researchers to utilize corrosion damage data. At the same time, the database stores the image data effectively, which improves the computer memory usage.
Design and Application of PC Composite Box-Girder Bridge with Corrugated Steel Webs
Authors: Ren Da Long , Wan Shui
Published: August 2011

The structure characteristic of prestressed concrete(PC) composite box-girder with corrugated steel webs is introduced, and the advantage is shown compared to PC girder bridge. Design of PC composite girder bridge with corrugated steel webs is introduced, contents including corrugated steel webs, shear connector, etc. The domestic application and development of PC composite box-girder bridge with corrugated steel web is reviewed, and part of the typical bridges combined with corrugated steel web PC box-girder are listed. On behalf of PC composite box-girder bridge with corrugated steel web, Shandong Juancheng Yellow River Bridge is introduced in detail. At last, the future of this type of bridge is prospected.
Preparation and Properties of Composite Shape-Stabilized Phase Change Material for Asphalt Mixture
Authors: Ma Biao , Ma Jun , Wang Da Long , Peng Shui Gen
Published: August 2011

Mixing the phase change material (PCM) into asphalt mixture could change the thermo physical properties of asphalt mixture. Asphalt mixture with PCM can remain in the ideal working temperature range for a relatively long time. However, the PCM easily leaks from asphalt mixture in the process of using. To solve this problem, the carrier-adsorbed packing method is applied to modify PCM in this paper. Different carriers and packaging materials are used to prepare three kinds of composite shape-stabilized phase change energy storage material (CPCM). Their microscopic characteristics and thermo physical properties are analyzed by scanning electron microscope and differential scanning calorimetry, respectively. The results show that the gel of silicon incompletely packed the macropores of activated carbon and the clustered silica, and the ethyl cellulose completely coated the clustered silica whose particle size increases and particle surface forms a compacted thin film. The phase transition temperature and latent heat of CPCM with silica are higher than CPCM with activated carbon. The PCM absorption of silica is greater than the PCM absorption of activated carbon. The mass fraction of CPCM packed by the EC is larger than the CPCM packed by the gel-sol method. The results indicate that the carrier-adsorbed packing method can effectively solve the problem of PCM leaking from asphalt mixture. The CPCM prepared with silica and ethyl cellulose is the most suitable for asphalt mixture.
Heat Transfer Characteristics of the Phase Change Material Microcapsule Slurry in Solid Phase State
Authors: Zhang Yan Lai , Rao Zhong Hao , Wang Shuang Feng , Zhang Hong , Li Li Jun , Zhang Ming Long
Published: August 2011

This experiment is performed to investigate heat transfer characteristics with the PCM microcapsule slurry in a solid phase state at a horizontal rectangular enclosure heating from below and cooling from top. Some important parameters are taken into account such as the mass concentration of the PCM, the temperature difference between heating plate and cooling plate, Nusselt number Nu, Rayleigh number Ra and the aspect ratio (width/height) of the horizontal rectangular enclosure. Experiment is done under the thermal steady condition in the PCM microcapsule slurry. Heat transfer coefficient is measured under various temperature differences in PCM mass concentrations of 10% and 20%. And relationship with Nusselt number Nu and Rayleigh number Ra is summarized to various heights H or the aspect ratio (width/height) Ar of enclosure.
Status and Trends of Inorganic Ceramic Materials in the Application of Pollution Treatment
Authors: Xiao Dong Xue , Liu Shu Ping , Diao Yong Fa , Hou Wei Li
Published: August 2011

The development and application of Inorganic Ceramic Materials is a hot topic nowadays, especially in pollution controlling area. In this paper, the applications of Inorganic Ceramic Materials in water pollution control technology and air pollution purification, and the problems under implementing Inorganic Ceramic Materials are pointed out; meanwhile a trend analysis of ceramic materials is proposed.
Numerical Analysis of Torsional Effect of the Eccentric Structure Caused by the Running Train
Authors: Wu Bi Tao , Lu Hua Xi , Liang Ping Ying
Published: August 2011

Application of finite element software ANSYS coupled with the train-ground dynamic model is developed to predict the torsion effect of asymmetric structure. Respectively analyze on eccentricity ratio is 0, 0.1, 0.3, 0.5, 0.7, 0.9, and 1.0. Results show that the ground vibrations by the train are slight. Eccentricity of the structure has certain effect on horizontal displacement, horizontal angle displacement, and floor horizontal acceleration.
Reliability Analysis of Embankment Slope in Yaan-Luku Expressway
Authors: Ma Jian Quan , Li Guang Jie , Li Shi Bo , Xu Pei Hua
Published: August 2011

Take a typical cross-section of rockfill embankment slope in Yaan-Luku highway as the research object, reliability analysis is studied under the condition of water table of 840.85m, 851.50m, and loading condition of natural state and horizontal seismic acceleration of 0.2g, respectively. Raw data use Kolmogorov-Smirnov test (K-S test) to determine the distribution type of parametric variation. And the parameters were sampling with Latin hypercube sampling (LHS) method and Monte Carlo (MC) method, respectively, to obtain state function and determine safety factors and reliability indexes. A conclusion is drawn that the times of simulation based on LHS method were less than Monte Carlo method. Also the convergence of failure probability is better than the Monte Carlo method. The safety factor is greater than one and the failure probability has reached to 35.45% in condition of earthquake, which indicating that the instability of rockfill embankment slope is still possible.
A Backfill Clay Method for Small Earth Dam’s Anti-Seepage and Reinforcement Engineering
Authors: Chen Bin , Liu Jiang Guang
Published: August 2011

A backfill clay method which is often adopted in small earth dam’ anti-seepage and reinforcement engineering has been introduced, and its using experiences in Zhejiang province, east of china, has been summarized. The design and construction process using the method has both been represented in the paper, with several technical difficulties had been selectively discussed. Application in hundreds of dams during the past decade showed that the method is characteristic of short working term, low cost, no need of many oversize machine, simple working technology and convenient application.
Analysis of Crack Reason on Block No.0 of Continuous Rigid-Frame Bridge
Authors: Huang Wen Xiong , Tan Li Ying , Zhou Kang Jing
Published: August 2011

Cracks on the Joint Part between Pier and Girder, namely Block NO.0 in the construction process, has become one of the major diseases of continuous rigid-frame bridges. Based on the real construction technology, process and environment of Yuquanxi Bridge, the uneven distribution of stress caused by various factors is precisely analyzed by ANSYS. The shrinkage difference of concrete, the excessive hydration heat, and the sunshine temperature difference is accurately simulated respectively. By comparing the numerical results with actual cracks condition, the results prove that the theoretical analyse is accord with the actual situation, and the real reason of cracks on Block No.0 of Yuquanxi Bridge is uncovered. This study is of great practical value in preventing cracks and improving bridge construction technology.
The Study about the Integrated Development and Utilization of above and below Urban Ground Space in China
Authors: Chen Zhi Long , Zhang Cheng , Guo Dong Jun
Published: August 2011

As the development of the economic of China and the acceleration of urbanization, metropolises have run out of land resources. Therefore, developing and utilizing the underground space becomes the inevitable trend of sustainable urban development. The modern urban space is a three-dimensional space system which is made up of above and below parts of the space. According to the city on or under the ground, the different characteristics exist. Arranging their own appropriate functions, and avoid weaknesses, will not only make best use of their function, but also promote each to form a good system of urban functions to ensure the city’s efficient and orderly operation.
Peak Pressure on Curtain Wall of a High-Rise Building with above 200 Meters High
Authors: Wang Qin Hua , Shi Bi Qing , Xu Ping Sheng
Published: August 2011

In this paper, pressure time history on curtain wall of high-rise building are sampled through synchronous multi-spots pressure measurement test in wind tunnel. Peak pressures are calculated by using the method mentioned in this paper for design of curtain wall. Some results and conclusion are useful for design of curtain wall on high-rise building.
Weathering Process of Black Strata
Authors: Zhu Bao Long , Wu Xi Yong
Published: August 2011

Black strata is a wildly distributed and special rock, whose weathering tends to speed up the weathering and the worsening of all rocks and the construction materials. The paper, via the geochemical process of the sulphide oxidation in the black strata, is to make analysis of the weathering features of the black strata in the west of Hunan province, China; the stability of other minerals in the black strata under acid condition, as well as the effect on the weathering of the black strata by rock components, geologic formation and different movements and moving speeds of the underground water.
Study on Rock Unloading Failure and its Effects on Rock Burst
Authors: Zhang Li Ming , Wang Zai Quan
Published: August 2011

The mechanical parameters and failure characteristics were obtained based on the results of triaxial unloading tests of limestone. Results show that: The evolution of volumetric strain is determined by lateral strain under unloading condition. Failure modes of rock can be classified into three types. Deformation modulus decreases and Poisson ratio increases in the process of unloading. Mohr-Coulomb criterion can not describe rock unloading failure strength property. Rock burst occur during tunnel excavation are closely related to the rock unloading failure characteristic.
Research Progress Basalt Fiber in Civil Engineering
Authors: Wang Hai Liang , Yang Xin Lei , Ren Quan Chang , Dong Peng
Published: August 2011

The basalt fiber composition reinforced material (BF) is a kind of new fiber composite material, comparison to carbon fiber, glass fiber and other composites , it has some advantages such as high temperature resistance, corrosion resistance and low cost. This paper introduces the research status of basalt fiber at home and abroad, and it pointes out its application prospect and problems which needs to be solve in bridge engineering.
Emulational Calculation of Concrete Perfusion in Steel-Pipe Arch Rib of a Large-Span Bridge
Authors: Bai Ying Hua , Liu Mu Yu , Yu Tian Qing
Published: August 2011

The bridge is a half-through steel-pipe concrete arch bridge with uniform catenary. Based on sufficiently considering the principle of symmetrically loading rib concrete, the pouring process of the whole concrete is calculated with emulation with the aiding of commercial package MIDAS/Civil. By analyzing the structural deformation, stress and stability, the structural responses such as the structural distortion deformation, bearing-force characteristics and stability coefficients at different construction stages are computed in this study. The motivation of this investigation is to ensure the structural safety, and the structural security can also be discussed. The made observations indicate that the whole bridge has a high safety in either construction or operation and the achievement of research may provide reference for the similar arch bridge.
Research on Influences of Unloading Rate on Rock Damage and Failure under Confining Pressure Unloading
Authors: Chai Wen Ge , Li Wen Li
Published: August 2011

In order to study on rock damage caused by the confining pressure unloading, different unloading rates have been adopted in tests on the rock under the constant axial load. Emphasis has been laid on discussing influences of different unloading rates on the elastic modulus, rock strength and failure mode of the rock. The research shows that the unloading rate has exerted a prominent effect on the elastic modulus evolution of the rock, stress level at rock failure and failure mode of the rock. The greater the unloading rate is, the smaller the variation in the elastic modulus of the rock will be, indicating smaller rock damage. Similarly, the greater the unloading rate is, the smaller the corresponding confining pressure at rock failure will be, implying the greater stress deviator imposed on the rock, in which case, the rock failure will be more abrupt and energy release more violent.
The Stiffness of the Tenon and Mortise Connection of Ancient Timber Buildings with the Random Incentive Action of Transportation
Authors: Hu Wei Bing , Zeng Jian
Published: August 2011

In this paper, on the basis of the dynamic response monitoring of the Xi’an Bell Tower, based on the random nature of traffic vibration, to use the vibration response data of ambient excitation directly, and obtained for monitoring the free decay of the Xi’an Bell Tower vibration signal response by using random decrement technique, then as this input, preparation of the corresponding computer program Matlab, has gotten the main dynamic parameters of the Bell Tower by using ITD method; in connection with the wooden beams of semi-rigid connection tenon characteristics, the upper wooden structure’s three dimensional finite element model, after Analysis of modal , fitting wooden the Bell Tower has been model tenon and mortise connection stiffness.
Research on Stress Distribution of Deep Rock by Mechanical Impact Parameters
Authors: Zhang Qiang , Mao Jun , Song Qiu Shuang , Li Shou Ju
Published: August 2011

Domestic and foreign scholars have been studied rock characteristics , but the study results not nearly same with rock nonlinear characteristics. it different rock crushing test conducted many studies ,because it has not the rock broken theoretical basis .This paper try to study the deep rock distribution (under the load before static load) by concentrated load ,it is proposed for deep rock fragmentation theory and methods. In the rock is often under stress , the stress number is measure pressure ,the rock stress state is Related for the elastic potential energy stored and the energy is proportional to the rock depth and volume occurrence. when the stress turned from ,the rock energy will accumulate or release .when the rock energy release ,the rock particles displacement may be elastic displacement or plastic displacement.
Experimental Research and Numerical Analysis on the Law of Deteriorated Performance for R.C. Frame Structure with Seismic Damages under Elevated Temperature (part I)
Authors: Miao Ji Jun , Fan Long , Liu Yan Chun , Qi Bo
Published: August 2011

Three R.C. frame structure models were designed with named KJ1, KJ2 and KJ3. Elevated temperature experiments were carried out to KJ1 and KJ2 with concrete crack width 0.2mm and 0.4mm respectively which was taken as the damage index ω caused by earthquake, KJ3 was directly undertaken to elevated temperature experiment. The laws of concrete crack development, axial deformation of frame column and standard heating curves were studied. The law between concrete crack ω and deteriorated performance for concrete frame structure was put forward, which can be a good reference for research on fire resistance performance of R.C. frame structure after earthquake.
Analysis of Heat Island Intensity in Urban Blocks Using Coupled Simulation
Authors: Liu Jing , Ma Fei , Li Fan
Published: August 2011

In this paper, a building canopy model is coupled with CFD for the analysis of microclimates within urban blocks under different urban and architectural planning. This model considers radiant heat exchange in the building canopy, water evaporation of vegetations and heat released from the air conditioning systems. Using this model, thermal environment of a real urban block is analyzed. The simulation results show that heat released from the air conditioning systems is one of the most important factors affecting outdoor thermal environment. Temperature of vegetation is significantly lower than that of road surfaces. However, air temperature difference is not great between zones with vegetation and other zones at 1.5m height.
Viscous Dampers Installation Arrangement and Hysteresis Curve Characteristics Research on the Mega-Sub Controlled Structure System
Authors: Li Tao , Zhang Xun An , Limazie Toi
Published: August 2011

This paper focuses on viscous dampers disposition schemes regarding the vibration control of the Mega-Sub Controlled Structure System (MSCSS) subjected to rare earthquake excitation. It is intended in this study to evaluate the dynamic characteristics of the MSCSS compared with the traditional mega frame structure. The optimum arranging scheme matched with dynamic characteristics of MSCSS is given by analyzing the dynamic responses of the structure with different arrangements of viscous dampers on structure. Characteristics of hysteresis curve of viscous dampers in the optimum scheme are also investigated. Results shows that when dampers are installed in the two middle stories of the two sub-structures, the acceleration and displacement of MSCSS are well controlled compared to the conventional mega frame, reaching the optimum control effect. It is also shown that dampers are an indispensable component on MSCSS configuration. Reasonable arrangement of dampers on MSCSS can accurately contribute to improve structure seismic resistance. The efficiency of this structural system is fully presented through the optimum arrangement.
Splitting Strength of Hybrid Fiber Reinforced Concrete after Exposure to Elevated Temperatures
Authors: Li Han , Gao Dan Ying
Published: August 2011

Experiments were carried out to investigate the splitting properties of hybrid fiber reinforced concrete after exposure to elevated temperatures. Based on the experimental observation, the effect of steel fiber dosage, polypropylene (PP) fiber dosage and strength grade of concrete on the residual splitting strength of the concrete after being subjected to high temperature was systematically analyzed. Test data indicated that high temperature caused significant deterioration in the splitting strength of concrete; the addition of PP fiber and steel fiber could all effectively improve the residual splitting properties of concrete; the optimum amount of PP fiber and steel fiber were identified respectively; the degree of strength loss of concrete with different strength grades was very close to each other. A theoretical equation was proposed to predict the residual splitting strength of concrete after being heated to temperatures up to 800°C.
Design and Mechanical Characters Study of a Self-Feedback-Friction Damper
Authors: Liu Xue Kai , Zhao Dong , Liu Hai Yang
Published: August 2011

To meet the vibration control needs working in varied vibration conditions, a new type of semi-active controllable friction was developed in this study, called Self-feedback-friction Damper, with the control of the feedback signal of vibration amplitude. Through calculation and analysis of its work capacity, the parameters of the Self-feedback-friction Damper are determined. The research shows the damping force of new friction damper changes to adjust the varied displacement, to obtain a better damping effect, controlled by the signals of the vibration amplitude.
Study of Water Stability of Asphalt Mixture Based on Residual Water
Authors: Guo Xue Dong , Cao Jian , Fang Xiang Yang
Published: August 2011

At present, AC, a major gradation type of asphalt mixture, is widely used in highway construction in China. Due to internal large porosity, the water of road surface draining quickly, OGFC pavement is also widely used. However, water is easier flow into OGFC asphalt pavement than ordinary asphalt pavement. So the water stability of OGFC asphalt pavement is particular important. We get the following conclusion by the test of residual water and water stability based on the two gradations asphalt mixture of AC and OGFC. Residual water stays in AC asphalt mixture for about one week.While the residual water stays in OGFC asphalt mixture for more than three months. When the residual water is 50% in AC, the water stability is the worst. When the residual water is 75% in OGFC, the water stability is the worst.
A New Heat Transfer Model for Floor Configuration Layer of the Low-Temperature Water Floor Radiant Heating System
Authors: Xu Ying , Liu Xiao Yan , Zhang Lan Shuang
Published: August 2011

The floor configuration layer and the floor radiant heat transferred by heat transferred configuration layer exterior with other walls are taken into account in this paper, then physical and mathematics models are developed. Simulation results as well as testing results are compared and analyzed to prove that the models and the calculation methods are right.
Analyses on the Differences of the Consolidated Quick Direct Shear Strength Index of the Silty Clay
Authors: Liu Tian Yun , Liu Ai Min , Yu Zhi Fa
Published: August 2011

It is found that great differences exist in the consolidated quick direct shear strength index of the silty clay based on several consolidated quick direct shear tests with different rate of shear. In this letter, the changes of the water-content coefficients of the soil samples before and after the tests are analyzed. The results indicate that the drain consolidation phenomenon exists during the consolidated quick direct shear tests. Different rates of shear are corresponding to different levels of drain consolidation, and then the strength index is different. Furthermore, the reason of the fact that the friction angle of the silty clay relatively increases with different rates of shear, while the cohesive strength decreases relatively is explained.
Research on the Changeable Strategy of Chinese Traditional Courtyard Dwelling’s Form Based on Climatic Adaptability
Authors: Wang Xiao Qian , Guo Wei Min , Luo Jing
Published: August 2011

Chinese traditional architecture construction has some ecological ideas in common with principles of Green Architecture. This article introduces briefly the basic composition of Chinese courtyard dwelling form and its climatic advantages, and analyzes the changeable strategy of courtyard dwelling developing into variation forms so as to adapt to different regional climates. It also sums up the characteristics of the changeable strategy and the spirit of Chinese traditional philosophy it implies, which could be an inspiration to the research on climatic-responsively energy-saving modern architecture.
Quantitative Algorithm for Retrieving SST from HJ-1B Data - With Northern Sea of China as Example
Authors: Wang Xiang , Zhao Dong Zhi , Yang Jian Hong , Zhao Ling
Published: August 2011

Sea surface data products play an important role in applications of remote sensing. Using thermal images acquired by HJ-1B launched in September 2008 and the near-real time measured data, improving the existing Mono-window Algorithm, accordingly, a new quantitative algorithm was proposed. The new algorithm was compared with Duan's algorithm in accuracy of SST retrieval in the experimental regions. Results indicated that the SST retreived by the new algorithm was closer to the measured SST data in the experimental regions than that of Duan's. For the new algorithm, average error of the retrieved SST was 0.76°C from the measured SST. As contrast, the error was 1.09°C for Duan's algorithm.
Thermal Economy Analysis of the Cylinder Unit Efficiency's on the Unit of 1000MW
Authors: Yang Zhi Ping , Kan Wei Min , Song Jing Hui , Bian Jing , Fu Zhong Guang
Published: August 2011

The paper researches with a 1000MW thermal power generating unit. The impact of steam cylinder efficiency's changes on steam turbine’s heat consumption rate and units’ coal consumption rate has been evaluated. It provides the basis for the units loss analysis and guidance for the 1000MW units’ energy saving.
3D Numerical Simulation of Inner Water Flow Field in a Hydrocyclone with Air Column
Authors: Li Hui , Guo Xiao Jun
Published: August 2011

Based on the principle and method of computational fluid dynamics (CFD), using the software, FLUENT, the inner water flow field in a hydrocyclone with air column was simulated and the flow details were studied roundly. This article analyzed the three-dimensional velocity field distribution, pressure field distribution and testified the reliability of numerical simulation to a certain extent. The “mixture” model was used to simulate the air column the first time and contrasted with experimental result, the simulated effect was proved effective. The results of this paper provided a good base and reference for the further research of solid-liquid separation.
Analysis of Material Metabolism for Ningdong Energy(Coal) and Coal Chemical Base
Authors: Zhi Jing , Fu Ze Qiang , Shen Peng , Gao Bao
Published: August 2011

Material flow analysis (MFA) has become a useful tool fo to analyze the metabolism of social systems. This paper proposes to use the indicators derived from MFA, complemented with water and energy indicators, to analyze the efficiency and the materialization ranks of Ningdong energy(coal) and coal chemical base (China). The companies in the base have many opportunities to improve on these aspects and the indicators can measure and reflect their evolution. In addition, the results show the importance that some flows such as water inputs which often are omitted, can have in some study cases.
Study on the Treatment of Tannery Wastewater with the High Concentration of Ammonia Nitrogen by MBR
Authors: Wang Jian Gen , Liu Ya Hui
Published: August 2011

The removal efficiency of CODCr and ammonia nitrogen of the high concentration of ammonia nitrogen from tannery effluent by membrane bioreactor (MBR) was investigated. The results showed that when the operation of MBR is stable, influent CODCr loads are less than 4.8 kg/m3•d, the average removal rate of CODCr was over 88%, the removal rate of ammonia nitrogen reached to 90%; when dissolved oxygen (DO) was 1.2mg/L and 1.8 mg/L, the reactor still has excellent treatment efficiency, and the removal rate of CODCr and ammonia nitrogen can achieved over 90%. In addition, through the study of membrane flux, it is easy to find that membrane flux decreases rapidly, the membrane requires periodic cleansing.
Analysis of the Relationship between the Influential Factors of Regional FEEEP Coordinated Growth Based on the DEMATEL Method
Authors: Liu Chen Chen , Li Li , Gao Yan
Published: August 2011

According to the characteristics of regional FEEEP coordinated growth, the influential factors index system of regional FEEEP coordinated growth is constructed. Using the DEMATEL method, the interactions among factors are analyzed, and the most important factors of regional FEEEP coordinated growth are found.
Adsorption of Cobalt Ions onto Mycobacterium phlei from Wastewaters
Authors: Xing Yan
Published: August 2011

This fundamental work deals with the biosorption removal of Co(II) using a Mycobacterium phlei strain. Several variables that have an effect on the capacity of cobalt biosorption from aqueous solution by Mycobacterium phlei were studied. particularly the effects of solution pH, initial Co(II) concentration, contact time and biomass dose. The experimental data were modeled by Langmuir and Freundlich isotherm models. Langmuir model resulted in the best fit of the adsorption data. The maximum adsorption capacity for Co(II) was 68.22 mg/g. The best correlation was provided by the second-order kinetic model, implying that chemical sorption was the rate-limiting step. The practical implication of this study is the development of an effective and economic technology for Co(II) removal from wastewaters.
Multi-Level in Fuzzy Evaluation of the Development Analysis of Electric Vehicle
Authors: Xu Wan Hong , Zhang Yuan Yuan , Liu Shu
Published: August 2011

In view of overall strategies for the development of Electric Vehicles and their internal conditions, the complex engineering designs of their promotions often involves some parameters’ determination such as research and development, market, battery cost performance, motor cost performance, some quality indicators of mutual restraints and many other complex influential factors are. In order to obtain satisfactory products, the evaluation indicator of Electric Vehicle development should be analyzed and evaluated. This paper constructs evaluation index systems of Electric Vehicles development and determines the evaluation index and weight reasonably by multi-level and multi-objective fuzzy comprehensive evaluation methods. And by transforming complicated multiple evaluations into simple quantitative evaluations, it provides a scientific evaluation method for improving the overall evaluations of electric vehicle development.
Application of Cold Water Spray in Mine Heat Hazard Control
Authors: Jian Cong Guang , Su Wei , Zhang Hui , Yang Fang
Published: August 2011

For the growing problem of mine heat hazard in the deep mining, this paper mainly studies the heat source and the rock temperature variation of the fifth mining in Pingdingshan. An air cooling system is designed using the low-temperature water spray, which operates as follows: the cryogenic water prepared by refrigeration unit is transported through the transmission pipeline to the cooler installed in the working face for cooling of the air flow; then the return water is transported back into the refrigeration unit for re-refrigeration cycle; the condensing heat which is generated by refrigeration unit is discharged by water spray in the shaft of Beishan, which is an effective solution to condensation heat emissions underground. To avoid the phenomenon of "uneven heat distribution with higher temperature on the upper position" during the long face cooling, the upper part of Mining Face is cooled by cold water spray shower, which is proved effective. Without the water spray working the temperature at the upper outlet of the mining face dropped by 2.8°C; and with the water spray working the working condition is improved by the temperature dropping for 4.8°Cat the upper outlet of the mining face while 4°Con the whole mining face and the air humidity content decreasing about 6 g / kg (DA). The research in this paper supplies valuable reference for the heat hazard control and recycling of mine wastewater.
Modeling Cooling Process of High Temperature Sinter
Authors: Lou Guo Feng , Wen Zhi , Liu Xun Xiang , Zhang Xin , Zheng Kun Chan , Yang Jie
Published: August 2011

In the paper, a 1-D unsteady mathematical model for the Gas-Solid heat transfer process of high temperature sinter has been developed, and is used to analyse the cooling process of high temperature sinter. A set of measured data is used to verify the modeling result. The agreement between the measured and the modeling is good. The effect of operation parameters on the cooling process of the annular cooler has been investigated.
The Release Behavior of Potassium and Sodium in the Biomass High-Temperature Entrained-Flow Gasification
Authors: Chen Qing , Zhou Jin Song , Mei Qin Feng , Luo Zhong Yang
Published: August 2011

Experiments were performed to investigate the release behavior of potassium and sodium in the biomass high-temperature entrained-flow gasification with the addition of acid oxide SiO2, basic oxide MgO, amphoteric oxide Al2O3. The results showed that the volatilization of alkali was found to strongly depend on temperature. High gasification temperature strengthened the alkali release. When the reactor temperature was 1200°C, the volatilization of alkali species were about 37.87% for K and 71.14% for Na. Three additives all favored the retention of potassium and sodium and the content of water-soluble potassium and sodium in the ash. Among the three additives, MgO had the best retention effect. The potassium and sodium content in the gas phase was as low as 46.6% and 67.3% compared with raw straw, respectively. In the entrained-flow gasification with short residence time, the additives retained more alkali metals by the physical and chemical adsorption. Part of the additive utilized as physical adsorbent during the gasification enhanced the ash melting point of the residue carbon.
Study on Effect on Dynamics Model of Biodegration of Organic Matter in Aerobic Composting of Human Feces from Temperature
Authors: Bai Fan , Wang Xiao Chang
Published: August 2011

Aerobic composting is a method for sanitary disposal of human feces as has been used in bio-toilet systems which can be used at family in city to save water and to control water pollution. In this study, batch experiments were conducted using a closed aerobic composting reactor with sawdust as the bulky matrix to simulate the condition of a bio-toilet for sanitary disposal of human feces. Attention was paid to the biodegradation of organic matters under the thermophilic and mesophilic conditions. The results indicated that: more 70% removal of fecal organic matters(mainly in first 6-8 days) observed at 60°C while more 63% (mainly in first 10-11 days) at 35°C in a two-week composting period. Removal of organic matters of thermophilic conditions was more than that of mesophilic conditions with maturity period (at 60°C) shorter than that(at 35°C). The organic matter’s biochemical degradation of similar level 1 dynamics model can build. Using the experimental data of composting reaction, calculated out respectively reaction kinetics constants 0.4413(at 60°C) and0.2864(at 35°C), the former is as 1.65 times as the latter. It indicated that thermophilic composting could be considered to reach more than 70% fecal organic removal and shorten maturity period of compost.
Study on the Method and Index of Rationality Evaluation for Energy Utilization Process
Authors: Xu Wen Zhong , Cheng Yan Hua
Published: August 2011

This paper carries the study on the method and index of rationality evaluation of energy utilization process. Based on the unreasonableness analysis for traditional method and index of rationality evaluation, the rationality taking exergy analysis and exergy efficiency as evaluation method and index for energy utilization process is discussed, and the method of exergy analysis and index of exergy efficiency is established. The method and index of rationality evaluation could reveal the essence of the energy devaluation and provide a theoretical basis for utilizing energy rationally.
Research on the Optimal Efficiency of Open-Loop Electromagnetic Ring Network
Authors: Huang Xun Cheng , Sun Su Qin , Sun Han Xiao , Li Yi Ming
Published: August 2011

With the expansion of power network, Power network stability problems have arised up, the short-circuit current of the device will also significantly exceeded. There exist many problems such as the reliability of power supply reduced, the threat of natural disasters of all the contact line among electromagnetic loop increased, etc. This article is to explore how to achieve optimal efficiency goals. This paper attempt to discuss this problem from the respect of technology and economics, using the Application of Optimal Control Theory to calculate the best model of electromagnetic ring. It is a useful discussion on the economic operation of power systems.
The Connection between the Particle Masses and Interactions
Authors: Jin Rui Min , Wang Yu Cang , Cang Li Min , Yan Tao
Published: August 2011

In the paper, the mass physical essence in Newton’s theory, Relativity and high energy physics are compared, the dynamic essence of mass was investigated at the angle of interaction, the single relation of mass was explored.
Dynamic Performance Testing Study of Micro-Turbine Based Distributed Energy System
Authors: Zhang Xue Mei , Shen Cen , Zhong Ying Jie , Qin Chao Kui , Zhou Da Han
Published: August 2011

The gas intake system, micro-turbine (MT) system and the absorption chiller within a MT based Distributed Energy System (DES) demonstration project in Shanghai were experimentally modified. An Computer Aided Testing(CAT) system, including exhaust gas flow rate metering, gas temperature, gas pressure and gas composition testing instruments, together with the data acquisition module of MT, was added to continually monitor and record the real-time data of DES, which is the foundation for further MT based DES energy management, optimal operation and control strategies research .
A Coordinated Energy Supply for China
Authors: Zhang Lei , Huang Yuan Xi , Yang Bo , Li Jiang Su , Cheng Xiao Ling
Published: August 2011

This study releases a fact that the national energy supply system could extend its spatial bordering as the demands for the fuels, especially oil and gas, increased and the structure of energy supply diversified. It is, therefore, that a coordinated energy supply would be a key issue for national energy security, not only because an uneven distribution of mineral resources of both a country and the whole world but also the changeable environments for national energy supply itself. The case study of Chinese snowstorm in 2008 just proved it, and to say nothing of the recent Japan's nuclear crisis.
Thermodynamic Analysis of Sintering Waste Heat Power Generation
Authors: Du Tao , Yang Jian Bo , Zhang Hong Lin
Published: August 2011

The current domestic conditions of sintering waste heat generation are introduced. The waste heat utilization methods are given according to waste heat characteristics of 360m2 sintering machine. The particle regenerative heat exchanger model is used to calculate heat transfer area of the first part of the circular-cooler. The logarithmic mean temperature difference method is used to calculate the heat transfer of closed cycle cooling air and the temperature of exhaust gas. The thermodynamic analysis of sintering heat generation process is completed. The power generation efficiency and quantity are calculated by using the heat balance and exergy analysis method.
Study on a Novel Separating Flat Heat Pipe Radiator
Authors: Du Jun Heng , Liang Kun Feng , Wang Lin
Published: August 2011

A novel separating flat heat pipe radiator was developed for high power rectification equipment，the physical and mathematic heat transfer model was built; The influences of the charging ratio, coil diameter and interbank combination on heat transfer limitation and temperature uniformity were researched; The characteristics of heat transfer system with four different kinds of interbank combinations between the new type of heat pipe and the common were analyzed . The results indicate that the heat transfer limitation and temperature uniformity of the new type of heat pipe can be improved when the charging ratio and the interbank combination were at the high-points. The charging ratio is in the range of 125%-175%，the interbank combination of the heat pipe heat sink is 4×10mm，the junction temperature of high power rectification equipment can be controlled steadily under 25°C for the heat load of 620W，and shall be very promising heat—transfer devices for controlling junction temperature of high power rectification equipment．