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Efficient Multi-rate Encoder of QC-LDPC Codes Based on FPGA for WIMAX Standard

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Chinese journal of Electronics 2017年第2期26卷 250-255页

作者： WANG Xiumin GE Tingting LI jun SU Chen hong Fangfei College of Information Engineering China Jiliang University National Mobile Communications Research Laboratory Southeast University

An efficient multi-rate encoder for IEEE802.16e LDPC codes which outperforms current single rate encoders with acceptable hardware consumption and efficient memory consumption is *** design utilizes the common dual-diagonal structure in parity matrices to avoid the inverse matrix operation which requires extensive *** Matrix-vector multiplication(MVM) units,bidirectional operation and storage compression are applied to this multi-rate encoder to increase the encoding speed and significantly reduce the quantity of memory bits *** proposed encoding architecture also contributes to the design of multi-rate encoders whose parity matrices are dual-diagonally structured and have an Approximately lower triangular(ALT)form,such as in IEEE 802.11n and IEEE *** results verified that the proposed encoder can efficiently work for all code rates specified in WIMAX *** a maximum clock frequency of 117 MHz,the encoder achieves 3 to 10 times higher throughput than prior *** proposed encoder is capable to switch among six rates by adjusting the input parameter and it achieves the throughput up to 1Gbps.

关键词： Encoder Multi-rate FPGA Dual Diagonal WIMAX

Cutting Characteristics of Zr-Based Bulk Metallic Glass

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journal of Materials Science & Technology 2015年第2期31卷 153-158页

作者： D.X.Han G.Wang j.Li K.C.Chan S.To F.F.Wu y.L.Gao Q.j.Zhai Laboratory for Microstructures Shanghai University Department of Industrial and System Engineering The Hong Kong Polytechnic University

Cutting behavior exerts a considerable influence on the fabrication of bulk metallic glass(BMG) components. In this study,the influences of machining parameters(i.e.,depth of cutting,feed rate,and spindle rate) on the turned surface of a Zr-based BMG after observing the 3D morphologies of this surface were *** results showed that the influence of the spindle rate on the surface morphologies is more substantial as compared to the depth of cutting and the feed rate. Nanoscratch tests were conducted to further characterize the separation mechanism of the chips,which revealed that the chips are torn off the surface of a BMG because of inhomogeneous localized maximum shear stress.

关键词： Bulk metallic glass Ultra-precision machining Surf

Natural polymers based triboelectric nanogenerator for harvesting biomechanical energy and monitoring human motion

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Nano Research 2022年第3期15卷 2505-2511页

作者： hong Chen Qixin Lu Xia Cao Ning Wang Zhong Lin Wang Center on Nanoenergy Research School of Physical Science and TechnologyGuangxi UniversityNanning 530004China Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of SciencesBeijing 100083China School of Chemistry and Biological Engineering University of Science and Technology BeijingBeijing 100083China Center for Green Innovation School of Mathematics and PhysicsUniversity of Science and Technology BeijingBeijing 100083China School of Materials Science and Engineering Georgia Institute of TechnologyAtlantaGA 30332-0245USA

Triboelectric nanogenerator(TENG)has been proved as a promising energy harvester in recent years,but the challenges of exploring economically triboelectric materials still exist and have aroused interests of many *** this paper,chitosan-silk fibroin-airlaid paper composite film(CSA film)was fabricated and then the CSA film based-triboelectric nanogenerator(CSA-TENG)was constructed,which presents an opportunity for natural polymers to be applied in triboelectric *** to the excellent electron donating ability of CSA film,the CSA-TENG can harvest environmental energy with a high *** importantly,the as-designed CSA film based dual-electrode triboelectric nanogenerator(CSA-D-TENG)is successfully assembled into hand clapper and trampoline to harvest mechanical energies generated by human bodies,it is also capable of monitoring human movement while harvesting biomechanical *** work provides a simple and environmental-friendly way to develop TENG for biomechanical energies harvesting and human motion monitoring.

关键词： triboelectric nanogenerator natural polymers biomechanical energies human motion monitoring

Gradient microstructure,recrystallization and mechanical properties of copper processed by high pressure surface rolling

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journal of Materials Science & Technology 2022年第31期126卷 182-190页

作者： j.Guo Q.y.He Q.S.Mei X.Huang G.L.Wu O.V.Mishin College of Materials Science and Engineering Chongqing UniversityChongqing400045China Southwest Technology and Engineering Research Institute Chongqing 400039China School of Power and Mechanical Engineering Wuhan UniversityWuhan 430072China Beijing Advanced Innovation Center for Materials Genome Engineering University of Science and Technology BeijingBeijing 100083China Department of Mechanical Engineering Technical University of Denmark2800 Kgs.LyngbyDenmark

The microstructure,hardness and tensile properties have been studied in copper processed by high pressure surface rolling(HPSR)both in the as-deformed condition and after subsequent annealing at 150℃.It is found that a gradient structure with significant differences in the scale of microstructural features is formed by *** deformed microstructure varies from nano-and ultrafine-scale structures with a large fraction of high angle boundaries near the surface to lightly deformed grains at depths of 1-3 mm below the *** tests of 1-mm-thick specimens demonstrate that the asdeformed material has a high strength and a low uniform *** at 150℃results in partial recrystallization,which creates new through-thickness *** for the topmost layer and several bands in the adjacent layer,recrystallization is more pronounced close to the *** fraction recrystallized is at least 80%at depths of 60-300μm after annealing for 960 *** fraction recrystallized in the subsurface decreases with increasing depth,and the deformed layer at depths greater than 500μm re-mains largely non-recrystallized after *** partially recrystallized condition demonstrates an improved combination of strength and ductility.

关键词： High pressure surface rolling Copper Gradient microstructure Annealing Hardness Strength Ductility

Causes of Poor Grain Plumpness of Two-Line Hybrids and Their Relationships to the Contents of Hormones in the Rice Grain

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Agricultural Sciences in China 2007年第8期6卷 930-940页

作者： ZHAO Bu-hong ZHANG hong-xi ZHU Qing-sen yANG jian-chang Key Laboratory of Crop Genetics and Physiology of jiangsu Province Yangzhou University Yangzhou 225009 P.R. China Lixiahe Region Agricultural Research Institute of jiangsu Province Yangzhou 225007 P.R.China

This study was designed to elucidate the grain filling characteristics and the causes of poor grain plumpness of some two-line hybrid rice combinations and their hormonal mechanism. Six varieties, including three two-line hybrid rice combinations, that show differences in seed-setting and grain filling, were used. And the contents of starch, sucrose, zeatin （Z）＋ zeatin riboside （ZR）, indole-3-acetic acid （IAA）, and abscisic acid （ABA）, the ethylene evolution rate, activities of sucrose synthase （SuSase） and starch synthase （StSase） in grains, the seed-setting and grain filling rate were investigated. The correlations amongst these were analyzed. The results showed that the poor grain filling of two-line hybrids was mainly attributed to the higher unfilled grain rate and the lower filling degree of inferior grains. During the early and mid grain filling periods, the sucrose content in inferior grains was greater than that in superior grains for the combinations with poor grain filling, indicating that the substrate concentration was not the principal factor for their slow grain filling and poor grain plumpness of the inferior grains of two-line hybrids. Z ＋ ZR, IAA, and ABA in superior grains were obviously greater than those in inferior grains at early grain filling stage. The maximum and mean contents of Z ＋ ZR, IAA, and ABA were positively very significantly correlated with the maximum and mean grain-filling rate, filling degree, and grain weight. The evolution rate of ethylene was greater in inferior grains than in superior grains and greater for the combinations with poor grain plumpness than those with good grain plumpness at the early or mid filling stages. The evolution rate of ethylene was negatively and significantly correlated with the grain filling rate, the grain filling degree, and the grain weight. Spraying ethephon （ethylene-releasing agent） at the early grain filling stage increased the evolution rate of ethylene, reduced the ABA content and activit

关键词： two-line hybrid rice grain-filling hormonal regulation physiological mechanism

On the Circumstance Administration Commonweal Lawsuit System

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学术界 2017年第2期 291-298页

作者： Dong hong Wang youqiang Northwest Agriculture and Forestry University Yangling Shaanxi712100

In China,establishing institution of environmental administrative public interest litigation is necessary and of great *** is not only necessary for supervising law-based administration of administrative subjects,but also for preserving the ecological environment well,as well as being integrated with the international *** key to establish China’s institution of environmental administrative public interest litigation to broaden the scope of accepting cases,extend the plaintiff qualification,and establish the prepositive procedure institution inevitable for administrative reconsideration,the compulsory lawyer agency institution,as well as the successful plaintiff incentive institution,and so on.

关键词：环境行政诉讼保护生态环境依法行政行政主体国际社会受案范围行政复议

Integrating the valence theory and the norm activation theory to understand consumers’ e-waste recycling intention

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Chinese journal of Population,Resources and Environment 2023年第1期21卷 26-36页

作者： hong Thi Thu Nguyen University of Science and Education The University of DanangLe Duan RoadDanang 550000Vietnam

Electrical and electronic waste(e-waste)is a growing challenge,matching the widespread boom in the use of information and communication *** to an alarming increasing amount of e-waste,a low rate of consumer engagement in ensuring the proper disposal of such materials intensifies the pressure on the exist‐ing e-waste *** deal with this thorny problem,it is of great interest to grasp consumers’disposal and re‐cycling behavioral ***,this study attempts to understand complementary perspectives around consumers’e-waste recycling intention based on the integration of the valence theory and the norm activation *** data mining models using classification and prediction-based algorithms,namely Chi squared automatic interaction detector(CHAID),Neural network,Discriminant analysis,and Quick,unbiased,efficient statistical tree(QUEST),were employed to analyze a set of the 398 data collected in *** re‐sults revealed that the social support value is by far the most critical predictor,followed by the utilitarian value,task difficulty,and monetary *** is also noteworthy that the awareness of consequences,education background,the ascription of responsibility,and age were also ranked as critical affecting *** lowest influential predictors found in this study were income and *** addition,a comparison was made in terms of the classification performance of the four utilized data mining *** on several evalua‐tion measurements(confusion matrix,accuracy,precision,recall,specificity,F-measure,ROC curve,and AUC),the aggregated results suggested that CHAID and Neural network performed the *** findings of this research are expected to assist policymakers and future researchers in updating all information surround‐ing consumer behavioral intention-related topics focusing on ***,the adoption of data min‐ing algorithms for prediction is another insight of this study,which may shed the light o

关键词： CHAID Discriminant analysis E-waste recycling intention Neural network Norm activation theory QUEST Sustainable development goals Valence theory

Transformation of Structure and Properties of Vesicles Induced by Transition Metal Ions

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Chinese Chemical Letters 2005年第12期16卷 1667-1670页

作者： hong Tao GUO Fei XU Xiao Hai ZHOU jin Feng DONG Gao yong ZHANG Xin Lin hong College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072

This paper proved that octodecyl propylenediamine could form vesicles in pure water and aqueous solution of CuCl2 or Cu（NO3）2. The structure and morphology of vesicles were different when the copper （Ⅱ） salt was added to the solution. The results showed that both the counterions and the ligands had strong influence on the configuration of coordinated structures and packing model in bilayer membrane of vesicles.

关键词： Octodecyl propylenediamine copper (Ⅱ) ions vesicle bilayer membrane counterions coordinated structure

Effects of Orexin A on mRNA Expression of Various Neuropeptides in the Hypothalamus and Pituitary, and on Serum LH Levels in Ovariectomized Gilts

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Agricultural Sciences in China 2010年第9期9卷 1362-1371页

作者： NING hong-mei GE ya-ming SU juan ZHANG Wen-long yAO yuan yANG Gui-hong LEI Zhi-hai College of Veterinary Medicine Nanjing Agricultural University Nanjing 210095 P.R.China College of Animal Science Henan Institute of Science and Technology Xinxiang 453003 P.R.China

Orexin has several biological functions, including the regulation of reproductive endocrine signaling, which has received much attention. However, little is known about the mechanism through which orexin regulates the levels of neuroendocrine hormones and peptides. We injected orexin A or physiological saline into the lateral ventricle of 10 ovariectomized （OVX） gilts, and determined the subsequent changes in serum luteinizing hormone （LH） concentration by using radioimmunoassay （RIA）. We also examined the expression of GnRH, NPy, and POMC mRNAs in the hypothalamus and that of LH, folliclestimulating hormone （FSH）, POMC, and ghrelin mRNAs in the pituitary by using semi-quantitative reverse transcription polymerase chain reaction. We found the following results：（1） Orexin A transiently promoted LH secretion; serum LH concentration started to increase at 10 min after the orexin injection, peaked at 30 min, and returned to its initial level at 1.5 h; （2） orexin A upregulated GnRH mRNA expression and downregulated NPy and POMC mRNAs expression in the hypothalamus; （3） orexin A upregulated LH and FSH mRNAs expression （FSH, P〉 0.05）, but downregulated ghrelin mRNA expression in the pituitary. No significant effects were observed on the pituitary expression of FSH and POMC mRNAs. Our data suggest that orexin A regulates reproductive function by stimulating GnRH and LH release directly and indirectly via its effects on NPy, POMC and ghrelin expression.

关键词： orexin A OVX gilt relative neuropeptides LH hypothalamus pituitary