Hebei Polytechnic University is a university in Hebei, China under the provincial government. The university currently has about 30,000 students and about 800 faculty members.Hebei Polytechnic University is situated in Tangshan, a rapidly developing city closed to Beijing, Tianjin within Bohai Economic Rim. It is a comprehensive university which specializes in engineering technology, science as backbone and develops humanities and social science as supplements. The current enrolment contains overseas students, postgraduates, undergraduates and adult students. It has 900 teachers with about 138 professors and 350 associate professors. More than 60% teachers have postgraduate qualifications . The university consists of 17 departments, 1 teaching section. The university offers undergraduate courses in 46 areas and two of them are provincial key disciplines.In recent years, many teaching achievements of the university have gained public acclaim. These achievements include: more than 40 Excellent Teaching Results Award of Hebei Province; more than 20 provincial Excellent Courses Since 2000, the university has undertaken more than 500 research projects, among which more than 32 research projects have reached international and national level, about 200 ranked foremost in China. The university's researchers have gained a lot of scientific awards of all kinds. In 2004, the university has undertaken 5 projects of National Natural Science Commission, 1 national level project.The university thinks highly of the communication with national and international organizations. It often invites guest lecturers from other countries. Every year, experts and young teachers from the university are sent to visit universities abroad. The university has actively explored various possibilities to run schools jointly and has established cooperative relationships with several foreign universities, such as the Leeds University in Britain, the University of Missouri, the Tokyo University in Japan,the South Australia University, the Adelaide Secondary School of English in Australia and the Universidade Federal de Ouro Preto in Brazil. Such exchanges with educational organizations abroad highly increased the university's quality and level of education. Wikipedia.
Ding Y.,Dalian University of Technology |
You Z.,Hebei Polytechnic University |
Jalali S.,University of Minho
Engineering Structures | Year: 2011
Based on the investigation of the influence of steel fibre on the workability of fresh self-consolidating concrete (SCC), this paper presents the experimental results carried out on a series of simply supported SCC rectangular beams, using steel fiber reinforcement with and without stirrups, and subjected to four-point symmetrically placed vertical loads. The major test variables are the steel fibre content and stirrup ratios. The current study on the shear strength of conventional reinforced concrete (RC) beams verifies the shear strength of SCC beams with steel fibres. The investigation indicates that the shear strength significantly increases by increasing the fibre content; the addition of steel fibres in an adequate percentage can change the failure mode from a brittle shear collapse into a ductile flexural mechanism. The stirrups can be partially replaced by steel fibres. The combination of steel fibres and stirrups demonstrates a positive composite effect on the mechanical behaviour. The shear strength recorded experimentally is compared with the value obtained from the proposed formula, and the correlation is satisfactory. © 2010 Elsevier Ltd.
Wang L.,Henan Polytechnic University |
Li S.-B.,Hebei Polytechnic University
Gongcheng Lixue/Engineering Mechanics | Year: 2011
The study of damage pattern growth in brittle materials is of fundamental importance for understanding the gestation mechanism and the occurrence conditions of catastrophe in some key project constructions. It is especially important in understanding the dynamic catastrophe in rock, such as seismic, rock burst, and the three kinds of outburst which are the outburst of water, gas and coal in coal underground mining. A great many studies showed that the mechanism of formation of the dynamics catastrophe in rock can be explained in the same mode that irreversible evolution of damage in material induces catastrophe in structure. So the study of the growth of damage pattern is a great important method to understand the course of gestation and occurrence of the catastrophe, and the simulation of growth of damage pattern is a good way to demonstrate the course of gestation and occurrence of the catastrophe. In the paper, damage pattern growth in a 2-D sample of quasi-brittle material is simulated, which is based on the principle that the damage evolution is irreversible, and the lattice finite element is used for the numeric model. The simulation displayed that the damage pattern in the 2-D sample grows in a way of irreversible expandedness from a point to large scale cracks, which are fractals formed of lines and planes. The damage mechanism is based on the strength theory of tension strain for brittle materials, and the computer program is developed on the platform of ANSYS. The conclusion showed that the complex shape of a damage pattern can be deduced from the simple dynamic rule of the meso-element and the interaction between the meso-elements, and the boundary of the pattern moves forth in fractal shape. In the end of the paper, some inspirations for catastrophe prediction are discussed.
Paterson A.H.,University of Georgia |
Freeling M.,University of California at Berkeley |
Tang H.,University of Georgia |
Wang X.,University of Georgia |
Wang X.,Hebei Polytechnic University
Annual Review of Plant Biology | Year: 2010
The next decade will see essentially completed sequences for multiple branches of virtually all angiosperm clades that include major crops and/or botanical models. These sequences will provide a powerful framework for relating genome-level events to aspects of morphological and physiological variation that have contributed to the colonization of much of the planet by angiosperms. Clarification of the fundamental angiosperm gene set, its arrangement, lineage-specific variations in gene repertoire and arrangement, and the fates of duplicated gene pairs will advance knowledge of functional and regulatory diversity and perhaps shed light on adaptation by lineages to whole-genome duplication, which is a distinguishing feature of angiosperm evolution. Better understanding of the relationships among angiosperm genomes promises to provide a firm foundation upon which to base translational genomics: the leveraging of hard-won structural and functional genomic information from crown botanical models to dissect novel and, in some cases, economically important features in many additional organisms. Copyright © 2010 by Annual Reviews. All rights reserved.
Tang H.,University of Georgia |
Bowers J.E.,University of Georgia |
Wang X.,University of Georgia |
Wang X.,Hebei Polytechnic University |
Paterson A.H.,University of Georgia
Proceedings of the National Academy of Sciences of the United States of America | Year: 2010
Although the timing and extent of a whole-genome duplication occurring in the common lineage of most modern cereals are clear, the existence or extent of more ancient genome duplications in cereals and perhaps other monocots has been hinted at, but remain unclear. We present evidence of additional duplication blocks of deeper hierarchy than the pancereal rho (ρ) duplication, covering at least 20% of the cereal transcriptome. These more ancient duplicated regions, herein called σ, are evident in both intragenomic and intergenomic analyses of rice and sorghum. Resolution of such ancient duplication events improves the understanding of the early evolutionary history of monocots and the origins and expansions of gene families. Comparisons of syntenic blocks reveal clear structural similarities in putatively homologous regions of monocots (rice) and eudicots (grapevine). Although the exact timing of the σ-duplication(s) is unclear because of uncertainties of the molecular clock assumption, our data suggest that it occurred early in the monocot lineage after its divergence from the eudicot clade.
An L.,Hebei Polytechnic University
Advanced Materials Research | Year: 2011
In this paper, the parameter optimization problem for multi-pass turning operations is studied. A mathematical model based on the minimum production cost criterion is developed. The unwanted material is removed by one finishing pass and at least one roughing passes depending on the total depth of cut. Maximum and minimum allowable cutting speeds, feed rates and depths of cut, as well as tool life, surface roughness, cutting force and cutting power consumption are constraints of the model. Optimal values of machining parameters are found by three methods: integer programming, nonlinear programming, and genetic algorithms. An example is presented to illustrate the effectiveness of the optimization model and solution methods. The model generates lower unit production costs compared with the results from the literature and machining data handbook. © (2011) Trans Tech Publications, Switzerland.
Chen J.,Hebei Polytechnic University
2011 International Conference on Electric Information and Control Engineering, ICEICE 2011 - Proceedings | Year: 2011
The credibility of system simulation models has a direct influence on its reliability, security and combination property, and dynamic consistency test of validating simulation models is a hotspot and difficulty in the fields of system simulation. According to the results of comparison analysis of three main test methods, namely Theil's Inequality Coefficient method (TIC), spectrum analysis method and distance test method, it can be concluded that distance test method can realize quantitative test and has no limitation for test data in the time domain, and reach a high credibility of test results. At the same time, the comparison conclusion is beneficial to choosing rational methods for concrete simulation results and giving advices for forming national standards in the future. © 2011 IEEE.
Xie S.-M.,Hebei Polytechnic University
Advances in Intelligent and Soft Computing | Year: 2012
In this paper, we have proposed a new method based on genetic algorithms and the learning by partial injection of sequences for solving the Flexible Job-shop Scheduling Problem (FJSP). Computational experiments show that the AGAIS (II) algorithm outperforms the performance of the AGAIS (I). In fact, the AGAIS (II) gives better solutions than AGAIS (I) in a reasonable computation time. © 2012 Springer Science+Business Media Dordrecht.
Li Y.,Hebei Polytechnic University
Communications in Computer and Information Science | Year: 2010
Research scheme of frequency hopping (FH) communication system using signal processing worksystem (SPW) is presented. A slow frequency-hopping communication system is designed and modeled using SPW. Then the designed system is tested under broadband noise and partial-band noise interference channel for its bit error rate performance. The results showed that this scheme is helpful in FH communication system design. © Springer-Verlag 2010.
Zhang S.,Hebei Polytechnic University |
Chen X.,Hebei Polytechnic University |
Huo X.,Tangshan No.2 Middle School
2nd International Conference on Future Networks, ICFN 2010 | Year: 2010
With the development of parallel computing, distributed computing, grid computing, a new computing model appeared. The concept of computing comes from grid, public computing and SaaS. It is a new method that shares basic framework. The basic principles of cloud computing is to make the computing be assigned in a great number of distributed computers, rather then local computer or remoter server. The running of the enterprise's data center is just like Internet. This makes the enterprise use the resource in the application that is needed, and access computer and storage system according to the requirement. This article introduces the background and principle of cloud computing, the character, style and actuality. This article also introduces the application field the merit of cloud computing, such as, it do not need user's high level equipment, so it reduces the user's cost. It provides secure and dependable data storage center, so user needn't do the awful things such storing data and killing virus, this kind of task can be done by professionals. It can realize data share through different equipments. It analyses some questions and hidden troubles, and puts forward some solutions, and discusses the future of cloud computing. Cloud computing is a computing style that provide power referenced with IT as a service. Users can enjoy the service even he knows nothing about the technology of cloud computing and the professional knowledge in this field and the power to control it. © 2010 IEEE.
An L.,Hebei Polytechnic University
Advanced Materials Research | Year: 2010
Cutting parameters including cutting speed, feed rate, depth of cut and the number of passes have significant influence on both machining quality and machining economics. Cutting parameter optimization involves optimal selection of a combination of these parameters. It is an essential part of a computer-aided manufacturing system. In this paper, an optimization model based on minimum production cost for multi-pass turning operations is developed. Various realistic machining conditions and machining requirements are incorporated in the model as constraints. Optimal solutions are found by a nonlinear programming solution approach. A turning example is presented to test the model. Compared with the literature and the cutting regimes recommended in machining data handbook, our model and solution method are simple and generate much lower unit production costs. © (2010) Trans Tech Publications.