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Sand erosion is a serious problem in the relatively arid and semiarid areas. A novel chemical sand fixing agent (LSUF) synthesized by lignosulfonate graft urea-formaldehyde was introduced in this study. It was made by polymerization of lignin sulfonate, urea and formaldehyde. The newly synthesized product had good water solubility, potentially good biodegradation, and produced no additional pollution. The results showed that the strength test, water-retaining test and wind erosion test of LSUF was better than the sand fixing agent composition by urea-formaldehyde (UF). The LSUF is an environment-friendly products and, it can be considered as an ideal sand fixing agents to control sand erosion in the relatively arid and semiarid areas.

Various methods were developed to prepare hydrogels including photo-cross-linking, chemical cross-linking, enzymatic cross-linking, pH or temperature-induced gelation, ionic interaction, and hydrophobic interactions. Whereas silk fibroin gelation time was difficult to control by physical methods, the cross-linkers used in chemical technique were likely to reduce the cell biocompatibility. Sodium N-Lauroyl Sarcosinate (SNS), an amino acid-based surfactant, came into accelerate silk fibroin to form silk hydrogel. To monitor the gelation process and determine the gelation time, turbidity changes during gelation were measured by Synergy HT. Cylindrical gels have been measured with universal material experiment machine and KES for mechanical properties. Fibroblast (L929) cells were seeded on the surface of hydrogels to investigate the cell compatibility. The results show that the SNS/SF gelation time ranges from 20 min to 120 min, which is affected by environment temperature, the final concentrations of SF and SNS. Compared with pure silk fibroin hydrogels, the compression strength of SNS/SF gel is much stronger. SNS/SF gel has excellent compression-recovery performance in KES test as well. A logarithmic stable cell growth appears on the surface of SNS/SF hydrogels, which indicates that SNS/SF hydrogels have excellent cell compatibility. Therefore, the SNS/SF hydrogels have great potential in tissue repair for surgery.

With the development of our economy, highway becoming more and more important for our lives. While the construction of the highway will cause many geo-hazards such as landslide, Collapse, Debris Flow and loess collapse etc. , based on the highway of S208, the types and character were analyzed in The paper, then their hazards were evaluated, it can be supplied a necessary basement for letter prediction and evaluation and comprehensive zoning evaluation.

In this paper, calculating fluid dynamics (CFD) method is utilized for analyzing the precision compound sand control screen internal flow field so as to establish appropriate models. During this numerical calculation, by using the - turbulence model is used to simulate the resistance characteristics under different working conditions when crude oil flows through precision compound sand control screen, analyze its speed change rule, flow path and pressure distribution, etc. The use of porous media model to simulate the resistance of the oil screen effect, the oil screen is replaced by the porous jump surface to simulate the strainer of pressure drop. To screen sand control performance and reduce the flow resistance to provide theoretical support, make the reservoir production losses to a minimum.

The ManganeseII Isovanillin complex [Mn2(C8H7O3)4(H2O)2], Diaqua-tetra (isovanillinato-O,O')-bis (manganeseII),the MnII atom is coordinated by three isovanillinate anions and one water molecule in a distorted trigonal bipyramidal configuration with five-coordinations geometry. And one isovanillinate ligand chelates to the MnII atom through its methyl and hydroxy O atoms, the other two isovanillinate ligand chelates to the MnII atom only through its hydroxy O atoms. The same as another MnII atom. So we get a Binuclear MnII metal complexe. The fact clearly suggests not so much significant contribution from the electrostatic interaction in the Mn-O bonding in Binuclear MnII metal complexes as we gotten in mononuclear MnII metal complexes. Adjacent complex link to each other via hydrogen bonds forming the three-dimensional supramolecular structure.

In this paper, microscopic method, transmission technique and attenuated total reflection method of infrared spectroscopy and differential scanning calorimetry were investigated for analyzing the component of inner and outer layer of sheath-core polymer fiber. Results showed that transmission technique and attenuated total reflection method of infrared spectroscopy was a quick and accurate method for identification of sheath-core fiber of fiber.

Big data is becoming the focus of all circles, but disordered and ambiguous definition of big data will deeply affect the study of this field. On the basis of the literature review, this paper applies the method of concept replacement in analytic philosophy, and puts forward a strict, clarified and broadly-accepted definition of big data, based on the fair definition, the study of a series of subsequent problems becomes simple and easy. The paper further discusses the application perspective and modes of the definition of big data by cases study in management of enterprise technological innovation.

In this paper, a set of spindle vibration test equipment has been designed by using modern design method, on the basis of in-depth study of spindle vibration source .The device includes three parts: machinery, detection and control .In the mechanical part, using sensor fixed machine mobile systems, the design of the spindle drive part and test board was carried on respectively .In the detection part ,the virtual instrument Labview graphical programming language was adopted to form a spindle vibration test and analysis system, realizing the acquisition, processing and analysis of the vibration signal .In the control part, Yan Hua movement control cards are adopted to realize control of motor speed, through Labview programming.

Bio-based biodegradable materials like poly (lactic acid), PLA has been using in many field in different forms due to its advantages in facing greenhouse gas emission. Long-term degradation behavior in nature soil is not a good way to evaluate the biodegradability of PLA, an accelerated biodegradation of PLA in soil bacterial suspensions was carried out under controlled laboratory conditions. The degradation behavior of PLA nonwovens with basic weight of 80g/m2 and 23g/m2 were studied using mechanical testing, SEM and FTIR analysis. Results showed that an anaerobic biodegradation was found during the degradation of PLA, no significant shifts or formation of new bands in FT-IR test. A number of cracks speared on fiber surface means biodegradation happened in amorphous part in fibers. Heavy basic weight nonwoven showed faster biodegradation than that of a light one.

With the increasingly competitive pressure, spunbond nonwoven products marketed is becoming more cost sensitive. Inorganic additives, which is mainly composed of calcium carbonate , has been mixed into the standard organic spinning solution for either reducing the raw material cost or enhancing some of the physical properties. Therefore, its necessary to find a test method to evaluating the quality of these products. This paper developed a test method for determining the amount of inorganic additives and calcium carbonate in nonwovens by thermogravimetry analysis, and proved its effectiveness.

Domestic and international testing methods of flammability property of textile, such as oxygen index method, vertical test method, 45 degree test method, horizontal test method and cone calorimeter method, were analyzed via comparing the principles, as well as their requirements of different acts and standards. To comprehensively evaluate the burning behavior of textiles, appropriate combination of methods should be chosen according to the practical application.

The manganeseII complex [Mn (C9H9O3)2(H2O)2], the MnII atom is located on a twofold axis and is coordinated by two ethylvanillinate anions and two water molecule in a distorted octahedral geometry. The ethylvanillinate ligand chelates to the MnII atom through its ethyl and hydroxyl O atoms, with greatly differing Mn-O bond distances (2.3988(15)Å and 2.0675(13)Å).Adjacent complex link to each other via hydrogen bonds forming the three-dimensional supramolecular structure.

An online detecting system is developed to check the function of oil control valve. This system consists of hydraulic detecting platform, signal collecting, signal processing and upper computer. It uses a domestic controller as the main control unit and the control program is developed. The signal conditioning board and the software of upper computer within LabVIEW environment are developed. By using this system, the signals of all sensors can be collected, conditioned, displayed and recorded quickly. The application shows that this system has been proved with the characteristics of high speed, high automation and detection precision.

For the nonlinearity of sensors always reduces the accuracy of control and detection system in engineering, a new compensation method based on MCU is put forward in this paper. To verify the feasibility of this method, a data acquisition system and compensation system are designed. The polynomial fitting is applied to obtain the functional relationship between input and output. Then the compensation system is tested on the resistive displacement sensor. The results show that after the compensation, the sensor error can be reduced to less than 1% and this method is identified to be practical.

T Vehicle scheduling for personnel evacuation plays a significant role in disaster rescue. However, current vehicle scheduling methods do not meet the needs of emergency response in disaster rescue. This paper proposes a rapid vehicle scheduling method to evacuate the crowd and reduce losses in an emergent situation. We construct a specific model for vehicle scheduling problem in disaster rescue firstly, and then put forward a heuristic algorithm to solve this problem. An empirical example is used to evaluate the effectiveness of the method. Scheduling and evacuation data are computed in real-time and considerations about dangerous zones of different dangerous levels are also included in this method. The characteristics of the method make it more suitable in actual emergency rescue.

Due to the rising tendency of chemical accidents, it is urgent to develop a real-time gas diffusion simulation system on computer during the emergent chemical accidents, and high computation efficiency of gas diffusion model is indispensable in the simulation system. This paper develops an efficient diffusion model based on Gaussian Puff Model and proposes a special numerical simulation method for the model. With the proposed model and the proposed method, the spatial density distribution of the gas spread can be computed rapidly and displayed visually in GIS. To validate the correctness, efficiency, reliability and flexibility of the model, two groups of simulations in different aspects (space and time) are performed respectively. The result of simulation is as well as expected, and the system based on the model will provide a reliable guarantee for rescue during emergent chemical accidents.

Deformation monitoring is one of the engineering measurement tasks. Three-dimensional laser scanning technology as a new technology has developed in recent years. With its high accuracy, high density, real-time and initiative, it wins great favor of people in the industry. Its unique technical advantages and characteristics make it widely used in many fields. The article summarizes the application of deformation monitoring methods and discusses the characteristics of ground 3D laser scanner, its working principles, its application in the field of deformation monitoring and some problems that should be considered.

Polyaniline (PANI) and polypyrrole (PPy) is developed rapidly with special physical and chemical performance. According to high catalytic activity, polyaniline is applied in a wide range of electrocatalysis area, especially for oxygen reduction. In this paper, electrochemical prepared polyaniline was used as catalyst as well as the loading of noble metal catalyst for manufacturing oxygen reduction electrode. Then the influence of carrier, noble metal and their binding forms to the ability of oxygen reduction were investigated by cyclic voltammeter. The result shows that PANI carrier was the most influential factor for oxygen reduction; for single noble metal catalyst, Pt shows bigger catalytic activity than Ag. And the best catalytic activity was optimized at dual deposited catalyst as Ag, Pt mass ratio to 23:100. Further more; compared to glassy carbon, graphite is much better for electrode basement.

Testing standards of electrostatic property of industrial textile were analyzed via comparing the principles and apparatuses, as well as their advantages and disadvantages. And the correlation study on different standards showed that testing results of different materials according to the same method had similar change trend, but no evidence proved a definite linear relationship of three test methods.

As the key part of vehicle control, ECU must be tested after manufacturing. This online function test system aims to automatically test the hardware and software of ECU PCB after they are welded. Ａ test system consisting of upper PC, test board, and tested ECU is built. According to the feature of the ECU (mutibus based, hardware and software included), the communication protocol, as well as testing software for upper and lower devices is developed. This system is easy to be applied and expanded in related ECU PCB testing. Batch test with this test system for newly-produced ECU is implemented, which ensures high quality and stability of the products.

In the paper, the new machining process which was named non-abrasive cryogenic polishing will be introduced. The model of non-abrasive cryogenic polishing was set up. The dynamic simulation was analyzed by using Recurdyn. And the physical model was accomplished. By analyzing mass experiments, the ice tool material, metal material, rotate speed, polishing time and other parameters were found.

Polypropylene spunbond nonwovens were researched by comparing ultraviolet degradation and weathering-aging. The spunbond nonwoven samples with different content of CaCO3were exposed to ultraviolet lights from UVA-340 lambs and natural sunshine. Trends of the decrease of mechanical properties of all samples are similar but the curves in artificial UV degradation are steeper. CaCO3can promote the degradation of polymer matrix while weight per unit area has a less impact on the photo-degradation.

The application of the ADAMS in automobile braking simulation system is described in this paper. Several aspects concerning the extension of the application using ADAMS in this field are discussed with special attention focused on braking simulation regarding to regulating device of breaking force.

It takes advantages of non-abrasive cryogenic polishing to polish the metal cylindrical surfaces in the paper. In cryogenic condition, the ice tool is produced by deionized water. The feed apparatus of the ice tool is also designed and produced. It is analyzed the influence of the ice tool material, metal material, rotate speed, polishing time and other parameters in the experiments.

Taking Songhuajiang River pollution accident as an example, the paper analyzes all aspects of damage for service industry and proposes the damage assessment methods. The economic losses are estimated finally.

With the edge of the application and key technologies, the management ideas that are the integration of equipment development and production stage of technology status management put forward and combed this project, providing comprehensive data management environment, providing rapid decision-making, timely information and scientific basis

Optimization of an engine accessory bracket is conducted by using the method offered by the Optistruct software. An initial structure is created based on the interspaces left by the layout of accessories，and multiple static and modal analyses are carried out in order to obtain basic stiffness and modal information. Then a model which minimizes the structural weight with the displacement and frequency constraints for multiple loading cases is defined. The simulation yields an optimal topology. According to the optimal topology and considering some other factors, a new design is created and FEA is made to validate the design. The results show that the method can accessory bracket light in weight and maximum is stiffness.

With the increasing rotational speed of the aero-engine shaft and ultra-precision machine tool spindles, there has been the machine tool spindle with ten thousand Rpm. It demands that the spindles should have high rotational accuracy and ultra-smooth surface. In this paper, it takes use of the new ice tool polishing technology to polish metal cylindrical surfaces. The 3D model has been designed. And also the model has been analyzed by Recurdyn software. It verified that the experiment is feasible and effective.

Natural ventilation and air temperature in glass curtain wall was investigated. A three dimension model of a four span, three floor building with double-skin glass curtain wall was built. Different outlet configurations and the effect on ventilation vector flow as well as temperature distribute were studied. The results show that under the condition of whole outlet area being a constant, large number outlet configuration provides better natural ventilation and stable temperature distribution.

Gelatin is a kind of biopolymer obtained from animals and its fiber has been used as one of biocompatible dressings and sealants for many years. Electrospun gelatin nanofiber got more attention for its high specific surface area. Low toxicity gelatin nanofiber mats can be obtained by using water as the solvent in electrospinning process, but the fiber diameter below 150 nm is not easy to control and lots of beads were formed in the mats for low concentration solutions. In this study, sodium dodecyl sulfate (SDS) and ethanol were used to improve the electrospinnability of the gelatin solution with the concentration of 13 wt %. Experimental result revealed that SDS and ethanol reduced the surface tension of gelatin solution, meanwhile increased the conductivity and the viscosity. With the ratio between water and ethanol of 95 to 5, and SDS content varied from 0.3 wt % to 0.8 wt %, beads along the gelatin fibers vanished. Smooth and uniform gelatin fibers with fibers’ diameter around 110 nm were obtained.

In the paper, it is introduced a new method of non-abrasive cryogenic polishing which is used to polish GaAs chips. It is also analyzed the influence of different factors on polishing surfaces and polishing uniformity. The rotate speed of work piece disk is a more important factor on impacting the polishing uniformity than offset e.

An in-situ water injection test across Xi’ an ground fissures has been done, in order to simulate the activity of the fissures after water seeps, from October to December, 2005. According to the settlement observed of the bottom of testing pit, it is proven that the surface water seepage speeds the movement of ground fissures. Usually, the soil on the hanging wall of the fissures is more fragmentized than that on the footwall, which is propitious to water seepage. The seepage promotes the interaction between water and soil particles and brings about the differential settlement of two sides of fissures. Therefore, surface water seepage accelerates the activity of the ground fissures.

The United Habitation in Marseilles is the master wok of Le Corbusier, the well-know architect. Over the fifty years of its existence, the researches concentrate on its light and shadows and color scheme of the facades, etc. However, the most important original intent of the designer is the optimization of the indoor thermal environment, especially the use of cross ventilation. As green building has drawn more and more attention nowadays, this article will focus on the indoor natural ventilation conditions of two standard cells of the Marseilles Unit, which are known as the ‘upper E’ apartment and the ‘lower E’ apartment, by using computational fluid dynamics (CFD) models. Compared with the data of Middle corridor type dwelling, verify the superiority of its architectural layout.

In this study, the marine circular economy mode of marine industries was investigated by using utilization of Tianjin Beijiang Power Plant. Tianjin Beijiang Power Plant, taking the effective and circular utilization of resources as core, depending on the regional industrial advantage, expanding the industrial chain continually and making itself play the leading role, perfectly combines sea water desalination, salt making, salt chemical products, building materials and some other items, thereby making the wastes of by-products of former processes the raw materials of latter processes. In this way, the power plant has found a new road of circular economy characterized by maximum resource utilization, minimum waste discharge and optimal economic benefit. The project meets the 3R rules of circular economy, i.e. “high efficiency, low consumption and low pollution”, and its project combining electric power, water and salt is first-ever in China and a typical circular economy project and an ecological project as well, presenting an important demonstration significance and promotion value for the comprehensive development of circular economy.

In this study, the marine circular economy mode of marine industries was investigated by using utilization of sea water in combination with thermal power generation. As an ocean state owning a broad sea frontier, China has a very great potential in development and utilization of marine resources. It is necessary in development of marine economy to seek for some modes differing from that of traditional terrestrial economy.

In this study, the mechanism of accumulation of pollutants into living body and defense from health damage were elucidated. Based on the obtained knowledge in this program, the innovative methodology and new functional materials for purification and the restoration were developed. Through these activities, the sustainable understanding and trust about the pollution issuse were established. Six research projects were expected by the fusion of the results. We had investigated the environments around waterfowls which come flying mutually, and the concentration of pollutants in water, soil, fold in wet land and also in waterfowl were measured cooperatively and the accumulation mechanism were clarified. The microchip electrochemistry assay method is developed and applied to actual environments. New materials and methodologies based on the konwledge of the mechanism of accumulation and the defense from health damage were developed.

In order to facilitate dynamic analysis of spindle, improve the vibration characteristics of the spindle and achieve the goal of control of spindle motion stability. A spindle vibration testing system is developed with necessary sensor, signal conditioner and data acquisition card based on Labview software in this paper. The spindle vibration testing and analysis system is formed based on virtual instrument graphical programming language Labview. The hardware is reduced in testing process. At the same time, acquisition, processing and analysis for vibration signal are realized, and the costs of hardware are greatly reduced. The testing work is made more convenient and quick by this system, and test is made more intuitive by its real-time display function. It will provide a scientific basis for searching for measures to reduce the spindle vibration and developing a new generation of mechanical structure of the spindle.

With the development of mobile communications, gallium arsenide integrated circuits (GaAs IC) have been widely used. For example, satellite communication technology, satellite TV, wireless data transmission, fiber optic communications equipment, automatic test equipment etc. At the same time, it demands that the GaAs chips should have high quality surfaces. In this paper, it takes non-abrasive cryogenic polishing technique to polish GaAs chip surfaces. It has recorded the actual measurement results. The results show that the surface roughness of the ice disk polishing can achieve nanometer scale. Through the research of non-abrasive cryogenic polishing, it has analyzed different parameters on the impact of surface quality.

This paper describes a method combining scenario analysis and linear program for the industrial development optimization in Bohai rim area. Aiming at maximizing the output value of the key industries of the area in 2020 without exceeding water environmental carrying capacity, three scenarios with different constraints have been discussed. Coordination of carrying capacity at provincial level and strict control on some key industrial scale is necessary to maximize economic growth through a sustainable way.

Agriculture has the main function such as food sources, raw materials, providing the elements, the consumer market and foreign exchange reserves for long time. With the development of society, agricultural function has changed in new era. The new function will replace the traditional one gradually and become the dominant feature in future, which supply agricultural products, employment and livelihood protection, ecological adjustment and cultural heritage and leisure.

The fundamental functions of agriculture are as followed food sources, raw materials, providing the elements for long time. We need understand updating and scientific orientation of the function. It supplies development in the new era. Scientific orientation and full performing of the functions are very important.