Hebi Vocational and Technical College

Hebi, China

Hebi Vocational and Technical College

Hebi, China
SEARCH FILTERS
Time filter
Source Type

Liu J.,Henan University of Urban Construction | Dou M.,Hebi Vocational and Technical College | Zhou L.,Henan University of Urban Construction | Xie K.,Henan University of Urban Construction
Advanced Materials Research | Year: 2012

Biomass plays unprecedented role in energy structure, whose study focuses on technology reform, the study on exploring raw material is limited. This paper, taking the usual Bermuda grass as objective, analyzes conditions of cellulose degradation. It comes to the conclusion that reducing sugar gets to 15.99% under conditions as follows: density of hydrochloric acid of 1.0%, ratio of solid and liquid of 1:10, reaction temperature of 120° C and reaction time of 60 minutes. © (2012) Trans Tech Publications, Switzerland.


Ke F.-S.,Fudan University | Fu X.-Y.,Fudan University | Duan G.-Y.,Hebi Vocational and Technical College | Wu S.,Fudan University | And 3 more authors.
Hongwai Yu Haomibo Xuebao/Journal of Infrared and Millimeter Waves | Year: 2011

The crystal structure, electronic and optical properties of Cr, O and CrO codoped GaN were calculated by first-principle calculation. The results show that codoping method brings in new intermediate band as well as lowering the formation energy in comparison with single oxygen atom doping. The formation of intermediate band enhances absorption of low energy photons, especially in infrared range of the sun spectrum. Our calculation predicts the feasibility of CrO codoped GaN used as a third-generation solar cell semiconductor material.


Zhao J.,HeBi Vocational And Technical College | Ge P.,HeBi Vocational And Technical College
Journal of Convergence Information Technology | Year: 2012

Traditional method of modeling that aims at a single physical process and simple domain is difficult in simulating a complicated large system, falling behind the computer technology trend toward multicores and networks. Parallel computation with multiple models and processes is a direction in the future. This paper proposes a method of self-organized optimization algorithm based on danger immune model that work together to simulate complicated processes using multiprocessing and networks technologies. In order to deal with complex mathematical entities emerged in cognitive informatics, computational intelligence, software engineering, and knowledge engineering, a set of case studies is presented on the modeling of iterative and recursive systems architectures and behaviors. The presented method provides an efficient approach to solve complicated problems.


Ma Z.,Huazhong University of Science and Technology | Wu Y.,Huazhong University of Science and Technology | Jin J.,Hebi Vocational and Technical College | Yan J.,Huazhong University of Science and Technology | And 4 more authors.
Molecular Phylogenetics and Evolution | Year: 2013

Cyclins are a family of diverse proteins that play fundamental roles in regulating cell cycle progression in Eukaryotes. Cyclins have been identified from protists to higher Eukaryotes, while its evolution remains vague and the findings turn out controversial. Current classification of cyclins is mainly based on their functions, which may not be appropriate for the systematic evolutionary analysis. In this work, we performed comparative and phylogenetic analysis of cyclins to investigate their classification, origin and evolution. Cyclins originated in early Eukaryotes and evolved from protists to plants, fungi and animals. Based on the phylogenetic tree, cyclins can be divided into three major groups designated as the group I, II and III with different functions and features. Group I plays key roles in cell cycle, group II varied in actions are kingdom (plant, fungi and animal) specific, and group III functions in transcription regulation. Our results showed that the dominating cyclins (group I) diverged from protists to plants, fungi and animals, while divergence of the other cyclins (groups II and III) has occurred in protists. We also discussed the evolutionary relationships between cyclins and cyclin-dependent kinases (CDKs) and found that the cyclins have undergone divergence in protists before the divergence of animal CDKs. This reclassification and evolutionary analysis of cyclins might facilitate understanding eukaryotic cell cycle control. © 2012 Elsevier Inc.


San-Ping Z.,Hebi Vocational and Technical College
Communications in Computer and Information Science | Year: 2011

This paper investigated the effect of design margin relaxation on overall circuit performance metrics such as operating frequency, area and power. From the experimental results, by designing the circuit using relaxed design margin, we can reduce the waste of design resources, and gain some advantages by using deterministic design infrastructure which is widely used in modern circuit design. In addition to these, if we apply post-silicon optimization to compensate the yield loss generated by design margin relaxation, the yield of the circuit can be raised to the target timing yield with area and power benefit. © 2011 Springer-Verlag.


San-Ping Z.,Hebi Vocational and Technical College
Communications in Computer and Information Science | Year: 2011

In this paper, a low power, high linearity and high gain front-end circuit with novel LNA in 0.18μm CMOS technology for 5.2 GHz wireless applications is proposed. By employing current-bleeding and current-enhanced techniques, the conversion gain and the linearity can be increased and the power consumption is reduced. The complementary common-gate LNA is adopted to reduce noise and to improve linearity. With the LO power of 0 dBm, the proposed front-end circuit has conversion gain of 18.4 dB, input 1-dB compression point of -16 dBm and IIP3 of -6 dBm, while it consumes only 9.4mW. The chip size including pads is 0.767mm × 0.96mm. © 2011 Springer-Verlag.


Zhao S.-P.,Hebi Vocational and Technical College
Applied Mechanics and Materials | Year: 2011

This paper presents a novel pressure sensor based on IL electrofluidic circuit. The simple configuration makes the device capable of being seamlessly integrated to wide varieties of PDMS microfluidic devices. The experimental results demonstrate that IL-filled microfluidic channels can be utilized as electrical resistors to construct functional circuits, and an electrofluidic Wheatstone bridge circuit has been designed to construct the pressure sensor. In the pressure sensor performance characterization, the calibration results show that the gate voltage is linear proportional to the applied pressure with sensitivity of 8.45 mV/psi and the pressure as small as 2.5 psi can be easily detected. © (2011) Trans Tech Publications, Switzerland.


Zhao S.-P.,Hebi Vocational and Technical College
Applied Mechanics and Materials | Year: 2011

In this study, SPICE program is applied to design micro fluidic circuits based on the analogical relationship with MOSFET models for the first time. A SPICE model of pneumatic-FET is established to express the behavior of them in micro fluidic circuits. Construction of pneumatic-FET model, its optimization, and effectiveness in circuit design and comparison are discussed in the later sections. © (2011) Trans Tech Publications, Switzerland.


Zhao J.,HeBi Vocational and Technical College | Zhang Z.,HeBi Vocational and Technical College
Journal of Theoretical and Applied Information Technology | Year: 2013

In this paper, the endomorphisms, the half-strong endomorphisms, the locally strong endomorphisms, the quasi-strong endomorphisms, the strong endomorphisms and the automorphisms of a join of cycle Cn and a vertex y are investigated. Some enumerative problems concerning these graphs are solved. In particular, the endomorphism spectrums and the endomorphism types of these graphs are given. It has a wide range of applications in Information Science. © 2005 - 2013 JATIT & LLS. All rights reserved.


Li H.,Hebi Vocational and Technical College | Yu J.,Hebi Vocational and Technical College
Advanced Materials Research | Year: 2012

According to the principle of equivalent surface area and Nyquist sampling theorem, this paper introduces the method which takes PIC18F2431 SCM as the control center in details, and it forms Single-phase sine inverter power supply by adopting the principle of equivalent surface area directly. This method that can be widely used in controlling Single-phase AC motor speed is simple and cost-effective. © (2012) Trans Tech Publications.

Loading Hebi Vocational and Technical College collaborators
Loading Hebi Vocational and Technical College collaborators