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| 1 | Analysis Method and Principle of Dual-mode Electro-mechanical Variable Transmission Program显示文摘Automotive industry,as an important pillar of the national economy,has been rapidly developing in recent years.But proplems such as energy comsumption and environmental pollution are posed at the same time.Electro-mechanical variable transmission system is considered one of avilable workarounds.It is brought forward a kind of design methods of dual-mode electro-mechanical variable transmission system rotational speed characteristics and dual-mode drive diagrams.With the motor operating behavior of running in four quadrants and the speed characteristics of the simple internal and external meshing single planetary gear train,four kinds of dual-mode electro-mechanical transmission system scheme are designed.And the velocity,torque and power characteristics of one of the programs are analyzed.The magnitude of the electric split-flow power is an important factor which influences the system performance,so in the parameters matching design,it needs to reduce the power needs under the first mode of the motor.The motor,output rotational speed range and the position of the mode switching point have relationships with the characteristics design of the planetary gear set.The analysis method is to provide a reference for hybrid vehicles' design.As the involved rotational speed and torque relationships are the natural contact of every part of transmission system,a theory basis of system program and performance analysis is provided. | LI Hongcai YAN Qingdong XIANG Changle WANG Weida | 2012 | Chinese Journal of Mechanical Engineering2012，25，3： | 6 |
| 2 | Insulin-like growth factor 2 as a candidate gene influencing growth and carcass traits and its bialleleic expression in chicken显示文摘We have identified DNA polymorphisms in the gene of insulin-like growth factor 2 by PCR-SSCP in a resource population, which was generated by Silky reciprocally crossing to Broilers. A C→G mutation was detected in the exon 2 (at position 71) by sequencing. This single nucleotide polymorphism (SNP) was found to be associated with production traits. Chicken with BB genotype showed more chest angle width but less 3 week body weight and glandular stom- ach weight than chicken with AA genotype (P<0.05); while the heterozygote (AB genotype) chicken had more abdominal fat weight, eviscerated yield with giblet than AA homozygote chicken. Further analysis showed that there were different genetic effects on some traits between heterozygote AB (paternal allele given first) and heterozygote BA: chickens with genotype BA had more birth weight and breast weight but less abdominal fat weight than chickens with geno- type AB (P<0.05), which could be hypothetically contributed by genome imprinting. Therefore, Silky chickens were selected for production of heterozygotes to confirm whether IGF2 locus was imprinting. Progeny from heterozygote × homozygote reciprocal cross was assayed for ex- pression after the genotype was determined. The transcription of IGF2 was detected by RT-PCR-SSCP. IGF2 gene was expressed bialleleically in 1-day-old neonatal liver and 90-day-old liver, kidney, heart, and muscle of both heterozygote AB and BA chickens. Therefore, IGF2 was not an imprinting gene in chicken. The different genetic effects between the het- erozygote AB and BA remain to be elucidated. | WANG Genyu1,YAN Bingxue1,DENG Xuemei2,LI Changlü2,HU Xiaoxiang1 & Li Ning1 1.State Key Laboratory for Agrobiotechnology,China Agricultural University,Beijing 100094,China 2.Department of Animal Genetics and Breeding,College of Animal Science and Technology,China Agricultural University,Beijing 100094,China | 2005 | Science China(Life Sciences)2005，48，2： | 5 |
| 3 | Synchrotron radiation X-ray powder diffraction techniques applied in hydrogen storage materials--A review显示文摘Synchrotron radiation is an advanced collimated light source with high intensity. It has particular advantages in structural characterization of materials on the atomic or molecular scale. Synchrotron radiation X-ray powder diffraction(SR-XRPD) has been successfully exploited to various areas of hydrogen storage materials. In the paper, we will give a brief introduction on hydrogen storage materials, X-ray powder diffraction(XRPD), and synchrotron radiation light source. The applications of ex situ and in situ time-resolved SR-XRPD in hydrogen storage materials, are reviewed in detail. Future trends and proposals in the applications of the advanced XRPD techniques in hydrogen storage materials are also discussed. | Honghui Cheng Chen Lu Jingjing Liu Yongke Yan Xingbo Han Huiming Jin Yu Wang Yi Liu Changle Wu | 2017 | Progress in Natural Science:Materials International2017，27，1： | 5 |
| 4 | P-T stability conditions of methane hydrate in sediment from South China Sea显示文摘For reasonable assessment and safe exploitation of marine gas hydrate resource, it is important to determine the stability conditions of gas hydrates in marine sediment. In this paper, the seafloor water sample and sediment sample (saturated with pore water) from Shenhu Area of South China Sea were used to synthesize methane hydrates, and the stability conditions of methane hydrates were investigated by multi-step heating dissociation method. Preliminary experimental results show that the dissociation temperature of methane hydrate both in seafloor water and marine sediment, under any given pressure, is depressed by approximately -1.4 K relative to the pure water system. This phenomenon indicates that hydrate stability in marine sediment is mainly affected by pore water ions. | Shicai Sun Yuguang Ye Changling Liu Fengkui Xiang Yan Ma | 2011 | Journal of Natural Gas Chemistry2011，20，5： | 2 |
| 5 | Packaged silica microsphere-taper coupling system for robust thermal sensing application显示文摘 | Yan Yingzhan Zou Changling Yan Shubin | 2011 | Optics Ex- press2011，10，7： | 1 |
| 6 | Replacing fishmeal with soybean meal affects survival, antioxidant capacity, intestinal microbiota, and mRNA expression of TOR and S6K1 in Macrobrachium rosenbergii显示文摘Using alternative plant-derived dietary protein to replace fishmeal,combined with practical evaluation indexes,is a recent focus for aquaculture practices.An 8-week feeding experiment with giant freshwater prawn Macrobrachium rosenbergii post-larvae was conducted to determine the eff ects of replacing fi shmeal(FM)with soybean meal in the feed,in terms of growth performance,antioxidant capacity,intestinal microbiota,and mRNA expression of target of rapamycin(TOR)and ribosomal protein S6 kinase B1(S6K1).Four isonitrogenous diets with isocaloric value were prepared to contain 100%,75%,50%,or 25%FM as the protein source(dietary treatments FM100,FM75,FM50,and FM25,respectively).Each diet was fed to post-larval prawns(mean weight 0.045±0.002 g)twice a day in four replicates.No signifi cant diff erence in weight gain was observed among all groups,but the survival rate of prawns fed the FM50 and FM25 diets was signifi cantly lower than that of prawns fed the FM diet.The mRNA expression of both TOR and S6K1 were the lowest in hepatopancreas of prawns fed the FM25 diet.Superoxide dismutase activity of prawns fed the FM25 diet was significantly lower than that of prawns fed FM50.In contrast,the malondialdehyde content was signifi cantly higher in prawns fed FM25 as compared with those fed FM75.The proportion of fishmeal in the diet did not affect the composition of core(phylum-level)intestinal microbiota,but greater fishmeal replacement with soybean meal had a potential risk to increase the relative abundance of opportunistic pathogens in the gut when considered at the genus level.These results suggest that fishmeal replacement with soybean meal should not exceed 50%in a diet for post-larval M.rosenbergii. | Zhili DING Dongsheng ZHOU Jinxian ZHENG Xuefeng CHEN Youqin KONG Changle QI Yan LIU Qiongying TANG Guoliang YANG Jinyun YE | 2022 | Journal of Oceanology and Limnology2022，40，2： | 1 |
| 7 | Evaluation of Trace Elements in the Soil of Typical Peach Orchards in Zunyi City显示文摘[Objectives]This study was conducted to clarify the enrichment and paucity of trace elements in the soil environment of peach orchards in Zunyi City,and to provide reference for supplementary application of microelement fertilizers and high-quality peach production in peach orchards.[Methods]Taking the soil of three typical peach orchards(Taoli Renjia peach orchard,Pengrui peach orchard and Taohuadao peach orchard)in Shenxi Town,Honghuagang District,Zunyi City as the research object,the contents of trace elements in soil were analyzed through field sampling and indoor determination of trace elements.[Results]The effective contents of trace elements in the soil of peach orchard bases in the study area were at a medium level,and the soil of the peach orchards was rich in available Fe and Se.The contents of available Cu,Mo and Mn were relatively rich.The contents of available B were not high overall.The contents of available Zn were at a moderate to low level overall.The soil of Taoli Renjia peach orchard was relatively rich in trace elements.[Conclusions]The research results can provide a scientific basis for the production of high-quality crispy peaches in peach orchards. | Wenzhao LI Xiong YAN Jun CHENG Xingyong WANG Changling SUI Xiangchun ZHANG Zhuang ZHAO Peng ZHOU | 2024 | Agricultural Biotechnology2024，13，1： | 0 |
| 8 | Vertical Schottky ultraviolet photodetector based on graphene and top–down fabricated GaN nanorod arrays显示文摘GaN has been widely used in the fabrication of ultraviolet photodetectors because of its outstanding properties.In this paper,we report a graphene–GaN nanorod heterostructure photodetector with fast photoresponse in the UV range.GaN nanorods were fabricated by a combination mode of dry etching and wet etching.Furthermore,a graphene–GaN nanorod heterostructure ultraviolet detector was fabricated and its photoelectric properties were measured.The device exhibits a fast photoresponse in the UV range.The rising time and falling time of the transient response were 13 and 8 ms,respectively.A high photovoltaic responsivity up to 13.9 A/W and external quantum efficiency up to 479%were realized at the UV range.The specific detectivity D*=1.44×10^(10) Jones was obtained at–1 V bias in ambient conditions.The spectral response was measured and the highest response was observed at the 360 nm band. | Xuemin Zhang Changling Yan Jinghang Yang Chao Pang Yunzhen Yue Chunhong Zeng Baoshun Zhang | 2022 | Journal of Semiconductors2022，43，6： | 0 |
| 9 | Dysfunctional resting-state EEG microstate correlated with the severity of cigarette exposure in nicotine addiction显示文摘Dear editor,Nicotine is a significant cause of severe physical and psychiatric disorders.Evidence suggests that smokers have poorer global cognitive functioning in later life,as well as lower average scores in several cognitive domains,including cognitive flexibility and memory [1]. | Yan CHENG Junjie BU Nan LI Jian LI Huixing GOU Shinan SUN Chang LIU Zida JIN Changle HE Chuan FAN Chialun LIU Xiaochu ZHANG | 2020 | Science China(Information Sciences)2020，63，7： | 0 |
| 10 | Practice Instruction of Innovative and Entrepreneurial Training Program for Aquatic Animal Medicine Students显示文摘As an important platform for the combination of theory and practice,college students' innovative and entrepreneurial training program has an important impact on improving the comprehensive ability of undergraduates. The major of aquatic animal medicine is a new sea-related major. The continuous development and transformation and upgrading of aquaculture in the new period have put forward newer and higher requirements for the innovative and practical ability and comprehensive quality of aquatic animal medicine graduates. Taking the innovation and entrepreneurship program of college students majoring in aquatic animal medicine as an example,this paper analyzes the significance of the innovation training program for college students,the cultivation of students' scientific research ability,and the problems existing in the application and operation of the program,in order to provide a reference for the innovative education and talent training for students majoring in aquatic animal medicine. | Huanying PANG Miao XIE Ziling WANG Xiuying YAN Huiling LIU Changling LI Jichang JIAN | 2019 | Asian Agricultural Research2019，11，4： | 0 |
| 11 | Identification and fine mapping of qSW2 for leaf slow wilting in soybean显示文摘Drought is one of the abiotic stresses limiting the production of soybean(Glycine max).Elucidation of the genetic and molecular basis of the slow-wilting(SW)trait of this crop offers the prospect of its genetic improvement.A panel of 188 accessions and a set of recombinant inbred lines produced from a cross between cultivars Liaodou 14 and Liaodou 21 were used to identify quantitative-trait loci(QTL)associated with SW.Plants were genotyped by Specific-locus amplified fragment sequencing and seedling leaf wilting was assessed under three water-stress treatments.A genome-wide association study identified 26 SW-associated single-nucleotide polymorphisms(SNPs),including three located in a 248-kb linkage-disequilibrium(LD)block on chromosome 2.Linkage mapping revealed a major-effect QTL,qSW2,associated with all three treatments and adjacent to the LD block.Fine mapping in a BC_(2)F_(3) population derived from a backcross between Liaodou 21 and R26 confined qSW2 to a 60-kb interval.Gene expression and sequence variation analysis identified the gene Glyma.02 g218100,encoding an auxin transcription factor,as a candidate gene for qSW2.Our results will contribute significantly to improving drought-resistant soybean cultivars by providing genetic information and resources. | Shengyou Li Changling Wang Chunjuan Yan Xugang Sun Lijun Zhang Yongqiang Cao Wenbin Wang Shuhong Song | 2024 | The Crop Journal2024，12，1： | 0 |
| 12 | Tuning microstructures of TC4 ELI to improve explosion resistance显示文摘A reasonable heat treatment process for TC4 ELI titanium alloy is crucial to tune microstructures to improve its explosion resistance.However,there is limited investigation on tuning microstructures of TC4 ELI to improve explosion resistance.Moreover,the current challenge is quantifying microstructural changes'effects on explosion resistance and incorporating microstructural changes into finite element models.This work aims to tune microstructures to improve explosion resistance and elucidate their anti-explosion mechanism,and find a suitable method to incorporate microstructural changes into finite element models.In this work,we systematically study the deformation and failure characteristics of TC4 ELI plates with varying microstructures using an air explosion test and LS-DYNA finite element modeling.The Johnson-Cook(JC)constitutive parameters are used to quantify the effects of microstructural changes on explosion resistance and incorporate microstructural changes into finite element models.Because of the heat treatment,one plate has equiaxed microstructure and the other has bimodal microstructure.The convex of the plate after the explosion has a quadratic relationship with the charge mass,and the simulation results demonstrate high reliability,with the error less than 17.5%.Therefore,it is feasible to obtain corresponding JC constitutive parameters based on the differences in microstructures and mechanical properties and characterize the effects of microstructural changes on explosion resistance.The bimodal target exhibits excellent deformation resistance.The response of bimodal microstructure to the shock wave may be more intense under explosive loading.The well-coordinated structure of the bimodal target enhances its resistance to deformation. | Changle Zhang Yangwei Wang Lin Wang Zixuan Ning Guoju Li Dongping Chen Zhi-Wei Yan Yuchen Song Xucai Wang | 2024 | Defence Technology(防务技术)2024，33，3： | 0 |
| 13 | Growth of Erbium Dihydride Films under Low Hydrogen Pressure by Pulsed Laser Deposition显示文摘Erbium dihydride thin films were prepared by pulsed laser deposition on Si(100) substrates using erbium target under different low hydrogen pressures. The properties of these films were examined by atomic force microscopy, X-ray diffractometer, transmission electron microscopy, and Fourier transform infrared spectroscopy and UV-vis spectroscopy. Surface morphology reveals the smooth surface of these films(RMS: from 0.503 to 2.849 nm). The presence of obviously-broadened peaks for diffraction planes(111) suggests a presence of very tiny crystallites distributed along a preferred crystallographic orientation. Transmission electron microscopy investigations confirmed the formation of tiny crystallites due to the implantation of erbium ions. Due to the increase of nominal H concentration, the intensity of the broad absorbance from 190-260 nm increased. | 王雪敏 SHEN Changle WANG Yuying PENG Liping LI Weihua YAN Dawei 吴卫东 TANG Yongjian | 2015 | Journal of Wuhan University of Technology(Materials Science)2015，30，1： | 0 |
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