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Dong F.,Xijing University
Chemical Engineering Transactions | Year: 2016

In order to improve the quality and performance of the green construction technology model of aluminum alloy formwork, the multi factor coupling method is proposed in this paper. The aluminum alloy system formwork encourages quality control from an early stage, i. e from the planning and design stages, through the manufacturing process, packing, delivery to site, erecting on site, dismantling and repeated assembly and removal process. In turn this facilitates good quality of concrete. The experiment result shows the system has been proved to be successful in many countries and cities. As the applicator of the aluminum alloy system formwork, it is proved to say that further invention of semi-labour system by the use of construction R&D might resolve the intensive labour problem. It will take time to improve the design and erection in a more scientific and mechanical way in order to achieve an objective of using less labour. Copyright © 2016, AIDIC Servizi S.r.l.

Sun W.,Xijing University
International Conference on Control, Automation and Systems | Year: 2016

For solving stiff differential-algebraic equations, we present the discrete dynamic iteration processes for multibody dynamics problems. The waveform relaxation iteration based on the Runge-Kutta(RK) methods is studied. The convergence results is obtained. This method provides an effective iterative process to the numerical approach for multibody systems. © 2016 Institute of Control, Robotics and Systems - ICROS.

Liu D.,Xijing University
Agro Food Industry Hi-Tech | Year: 2017

At present, there are many researches on visual communication design and digital printing technology. However, there are few studies on the combination of visual communication design and digital printing technology. Therefore, the propaganda of fire knowledge in the field of fire was taken as an example in this paper, the combination between the two was studied, the theory and elements of visual communication, the composition and printing process of digital printing technology design were described in detail. And then combined with visual communication design and digital printing, the posters of fire knowledge were created, the final results showed that there were high efficiency and wide application range after the combination of the two.

Zhang J.,Xijing University
Agro Food Industry Hi-Tech | Year: 2017

With the development of science and technology, the requirements for the accuracy of the product parts in various fields have been higher and higher, which has prompted the development of the whole product manufacturing industry. Some basic researches have been carried out the correction method for machining error of product parts. However, the rapid development of science and technology in today's era has brought more opportunities for the finishing of products. In this paper, the correction of finishing error based on laser on-line measurement technology was studied and compared. The results show that the on-line measurement of laser is helpful to the correction of finishing error.

Qi D.,Xijing University
Agro Food Industry Hi-Tech | Year: 2017

At present, the interaction of 3D digital space is applied in more and more fields, but it is rarely used in the field of art. Therefore, through Chinese traditional ink painting, the application of interactive technology in 3D digital space in the field of art was studied in this paper. In this paper, the theory, technical features and application of 3D digital spatial interaction were described in detail. And then the technology was used, and animation works were created. And people of different ages were invited to experience in the cultural center. The empirical results show that in the field of art, the application prospect of interactive technology in 3D digital space is very extensive.

Li X.,Xijing University
Agro Food Industry Hi-Tech | Year: 2017

With the development of the times, people's demand for oil and gas has been increasing; this trend has also led to the progress and development of oil and gas exploration and testing technology. As a new and scientific theory, pre-stack AVO inversion technique is of great significance for oil and gas exploration, and the intelligent optimization algorithm also provides some opportunities for the development and progress of the technology. In view of the current situation of the increasing use of oil and gas in China and the not mature application of pre-stack AVO inversion technology, the technology was analyzed in this paper. The results show that the pre-stack AVO inversion technique is of positive significance to oil and gas exploration.

This paper study an optimal time-consistent reinsurance-investment strategy selection problem in a financial market with jump-diffusion risky asset, where the insurance risk model is modulated by a compound Poisson process. The aggregate claim process and the price process of risky asset are correlated by a common Poisson process. The objective of the insurer is to choose an optimal time-consistent reinsurance-investment strategy so as to maximize the expected terminal surplus while minimizing the variance of the terminal surplus. Since this problem is time-inconsistent, we attack it by placing the problem within a game theoretic framework and looking for subgame perfect Nash equilibrium strategy. We investigate the problem using the extended Hamilton–Jacobi–Bellman dynamic programming approach. Closed-form solutions for the optimal reinsurance-investment strategy and the corresponding value functions are obtained. Numerical examples and economic significance analysis are also provided to illustrate how the optimal reinsurance-investment strategy changes when some model parameters vary. © 2017 Informa UK Limited, trading as Taylor & Francis Group

Qiu H.,Xijing University
Jixie Qiangdu/Journal of Mechanical Strength | Year: 2017

In order to promote development of scroll compressor's high speed and low vibration, and reduce its vibration and running noise, equivalent mechanical model and dynamic balance equation of the principal axis's transmission system were set up. Program of parametric finite element model for the principal axis assembly was developed on APDL language, and then its dynamic balance characteristic was improved based on that, and the location(radius of the centroid R2 and R3) more reasonable of balance weight's centroid was confirmed. The improving results indicated that, the principal axis could not only keep dynamic balance status, but also adapt more higher working speed, while decreased R2 and increase R3. Because of improving design, the first order natural frequency of the principal axis was increased by 9.49Hz, thus then its dynamic characteristic was improved effectively. © 2017, Editorial Department of JOURNAL OF MECHANICAL STRENGTH. All right reserved.

Huang Y.-H.,Xijing University | Zhang Q.-H.,Chinese PLA General Hospital
British Journal of Nutrition | Year: 2010

The present study was undertaken to investigate the antioxidant effect of chronic ingestion of genistein (Gen) against neural death in the brain of ovariectomised (Ovx) rats. The rats were randomlydivided into five groups, i.e. sham-operated (sham), Ovx-only, Ovx with 17-oestradiol, Ovx with low (15mg/kg) and high (30mg/kg) doses of Gen (Gen-L and Gen-H), and were orally administered dailywith drugs or vehicle for 6 weeks. The learning and memory abilities were measured by Morris water maze test. Oxidative damages in the brain were evaluated by the level of superoxide dismutase (SOD), malondialdehyde (MDA) and monoamine oxidase (MAO) activities. Neural apoptosis was shown by terminal deoxynucleotidyl transferase dUTP nick end labelling (TUNEL) staining and caspase-3 activity.In the visual learning and memory test, there were no significant differences among the population means of the five groups. While in the probe trial test, the Gen-L group instead of the Gen-H group exhibited reduced escape latency and increased memory frequency than the Ovx group. Although both doses of Gen could reduce acetylcholinesterase activity, only a low dose of Gen could diminish MDA activitysignificantly in frontal cortex and enhance SOD content in the hippocampus. In contrast, MAO content was decreased in the cortex by either dose of Gen, while in the hippocampus, only a high dose of Genappeared to be effective. Interestingly, Gen at both the doses could attenuate the increased number of TUNEL-positive neurons and caspase-3 activity in Ovx rats. These results suggest that Gen confersprotection against Ovx-induced neurodegeneration by attenuating oxidative stress, lipid peroxidation and the mitochondria-mediated apoptotic pathway in a region- and dose-dependent manner.© The Authors 2010.

Quan H.W.,Xijing University
Applied Mechanics and Materials | Year: 2013

In bearings-only target localization, observer path have an important effect on the accuracy of target localization. Based on the analysis of Fisher information matrix, an optimal approach to designing observer path is proposed. Observer path derived from the step-by-step optimal algorithm only depends on observer's initial states and state constraints. The optimal path resulted with step-by-step algorithm is demonstrated by computer simulation. Compared with traditional methods, our algorithm is not limited to the number of observations as well as terminating conditions. © (2013) Trans Tech Publications, Switzerland.

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