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97篇 您的检索式:作者名="Junjie Peng"
    题名 作者 年代 出处 被引量
1Principles and construction of MSD adder in ternary optical computer显示文摘The two remarkable features of ternary values and a massive unit with thousands bits of parallel computation will make the ternary optical computer (TOC) with modified signed-digit (MSD) adder more powerful and e?cient than ever before for numerical calculations. Based on the decrease-radix design presented previously, a TOC can satisfy either a user requiring huge capacity for data calculations or one with a moderate amount of data, if it is equipped with a prepared adder. Furthermore, with the application of pipelined operations and the proposed data editing technique, the e?ciency of the prepared adder can be greatly improved, so that each calculated result can be obtained almost within one clock cycle. It is hopeful that by employing a MSD adder, users will be able to enter a new dimension with the creation of a new multiplier, new divider, as well as new matrix operator in a TOC in the near future.JIN Yi SHEN YunFu PENG JunJie XU ShiYi DING GuangTai YUE DongJian YOU HaiHang 2010Science China(Information Sciences)2010,53,11:26
2Principles,structures,and implementation of reconfigurable ternary optical processors显示文摘This paper discusses the principles,structures,and implementation procedures for reconfiguring a ternary optical processor (TOP).Typical structures,classifications,and naming of the TOP and basic operation units (BOUs) are described in this paper.The circuit implementations,commands,and processes for the reconfiguration are also discussed in detail.A simple analysis of the high performance and low power consumption of ternary optical computers is presented.Finally,an experiment is performed on reconfiguring a 1-bit BOU,which shows that the principles of reconfigurable TOPs are valid,and that the implementations and commands for the reconfiguration are effective.JIN Yi WANG HongJian OUYANG shan ZHOU Yu SHEN YunPu PENG JunJie LIU XueMin 2011Science China(Information Sciences)2011,54,11:23
3Emissions of polycyclic aromatic hydrocarbons from coking industries in China显示文摘这研究开始估计多不的芳香的烃的特征(哼) 从 coking 工业的排放,与在四典型焦炭植物进行的领域采样。为每选择植物,栈烟道气体样品在包括的进程期间是镇定的控告煤进炉(CC ) ,推焦炭(PC ) 和焦炭炉气体(CG ) 的燃烧。十六个个人在 US EPA 优先级表上哼被煤气的层析 / 团 spectrometry (GC/MS ) 分析。结果证明总数哼在烟道气体的集中从 45.776 ~ 414.874 g/m3 ,与为 CC (359.545 g/m3 ) 的最高的排放水平。集中哼在 CP1 (收费的邮票) 从 CC 过程射出从 CP3 和 CP4 (收费的顶) 是比那低的。Low-molecular-weight 哼(即,二 -- 到三戒指哼) 到总数的占优势的贡献者哼内容,和小睡, AcPy,流感, PhA,和蚂蚁被发现是最丰富的。为 CC (2.248 g/m3 ) 的全部的 BaPeq 集中比为 PC (1.838 g/m3 ) 的那些高, CG (1.082 g/m3 ) ,和 DbA 作为在从 coking 过程的排出物的 BaP 是到 carcinogenic 风险的一个重要贡献者。微粒哼比对总数的相应贡献哼的占了超过 20% 全部的 BaPeq 集中,它显著地高集体集中(5%) 。微粒并且气体哼当时,应该被考虑潜在的毒性风险哼污染在 coking 期间,过程被估计。吝啬的总数 -- 哼排放因素分别地是为 CC 和 PC 的 346.132 和 93.173 g/kg。Ling Mu Lin Peng Junji Cao Qiusheng He Fan Li Jianqiang Zhang Xiaofeng Liu Huiling Bai 2013Particuology2013,11,1:17
4Fabrication and Evaluation of a Bioactive Sr–Ca–P Contained Micro-Arc Oxidation Coating on Magnesium Strontium Alloy for Bone Repair Application显示文摘Considering the compatibility between degradation and bioactivity of magnesium-based implants for bone repair, micro-arc oxidation is used to modify the magnesium alloy surface in aqueous electrolytes,allowing strontium, calcium, and phosphorus to be incorporated into the coating. The thickness, composition, morphology and phase of this Sr–Ca–P containing coating are characterized by scanning electron microscopy equipped with energy dispersive X-ray spectrometer and X-ray diffraction. The in vitro and in vivo degradation of the coating is evaluated by immersion test, electrochemical test and implantation test. Moreover, the cytocompatibility is tested with osteoblast cell according to ISO 10993. The results show that Sr, Ca and P elements are incorporated into the oxide coating, and a refined structure with tiny discharging micro-pores is observed on the surface of the coating. The Sr–Ca–P coating possesses a better corrosion resistance in vitro and retards the degradation in vivo. Such coating is expected to have significant medical applications on orthopedic implants and bone repair materials.Junjie Han Peng Wan Yu Sun Zongyuan Liu Xinmin Fan Lili Tan Ke Yang 2016Journal of Materials Science & Technology2016,32,3:8
5Loss of Gn1a/OsCKX2 confers heavy-panicle rice with excellent lodging resistance显示文摘Significant achievements have been made in breeding programs for the heavy-panicle-type(HPT)rice(Oryza sativa) in Southwest China. The HPT varieties now exhibit excellent lodging resistance,allowing them to overcome the greater pressures caused by heavy panicles. However, the genetic mechanism of this lodging resistance remains elusive. Here, we isolated a major quantitative trait locus, Panicle Neck Diameter 1(PND1), andidentified the causal gene as GRAIN NUMBER 1 A/CYTOKININ OXIDASE 2(Gn1 A/Os CKX2). The null gn1 a allele from rice line R498(gn1 aR498) improved lodging resistance through increasing the culm diameter and promoting crown root development.Loss-of-function of Gn1 a/Os CKX2 led to cytokinin accumulation in the crown root tip and accelerated the development of adventitious roots. Gene pyramiding between the null gn1 aR498 allele with two gain-of-function alleles, STRONG CULM 2(SCM2)and SCM3, further improved lodging resistance.Moreover, Gn1 a/Os CKX2 had minimal influence on overall rice quality. Our research thus highlights the distinct genetic components of lodging resistance of HPT varieties and provides a strategy for tailormade crop improvement of both yield and lodging resistance in rice.Bin Tu Zhang Tao Shiguang Wang Lei Zhou Ling Zheng Chun Zhang Xinzi Li Xiaoyu Zhang Junjie Yin Xiaobo Zhu Hua Yuan Ting Li Weilan Chen Peng Qin Bingtian Ma Yuping Wang Shigui Li 2022Journal of Integrative Plant Biology2022,64,1:5
6Nematode-Encoded RALF Peptide Mimics Facilitate Parasitism of Plants through the FERONIA Receptor Kinase显示文摘The molecular mechanism by which plants defend against plant root-knot nematodes(RKNs)is largely unknown.The plant receptor kinase FERONIA and its peptide ligands,rapid alkalinization factors(RALFs),regulate plant immune responses and cell expansion,which are two important factors for successful RKN parasitism.In this study,we found that mutation of FERONIA in Arabidopsis thaliana resulted in plants showing low susceptibility to the RKN Meloidogyne incognita.To identify the underlying mechanisms associated with this phenomenon,we identified 18 novel RALF-likes from multiple species of RKNs and showed that two RALF-likes(i.e.,MiRALF1 and MiRALF3)from M.incognita were expressed in the esophageal gland with high expression during the parasitic stages of nematode development.These nematode RALF-likes also possess the typical activities of plant RALFs and can directly bind to the extracellular domain of FERONIA to modulate specific steps of nematode parasitism-related immune responses and cell expansion.Genetically,both MiRALF1/3 and FERONIA are required for RKN parasitism in Arabidopsis and rice.Collectively,our study suggests that nematode-encoded RALFs facilitate parasitism via plant-encoded FERONIA and provides a novel paradigm for studying host-pathogen interactions.Xin Zhang Huan Peng Sirui Zhu Junjie Xing Xin Li Zhaozhong Zhu Jingyuan Zheng Long Wang Bingqian Wang Jia Chen Zhenhua Ming Ke Yao Jinzhuo Jian Sheng Luan Devin Coleman-Derr Hongdong Liao Yousong Peng Deliang Peng Feng Yu 2020Molecular Plant2020,13,10:3
7Resistance Characteristics of Arc in Long Air Gap显示文摘Arc resistance is an important parameter for characterizing long arcs in air, and its laboratory testing is of importance for accurate arc modeling of electromagnetic transient caused by short circuit fault. Therefore, we constructed an experimental system to study the cha- racteristics of long AC arc in air. Driven by currents of 10 kA or 40 kA (root mean square value), the system produces arcs with different initial lengths of 1 m, 2 m and 4 m, and the movement of the arcs are captured by a high-speed camera. After performing experiments using the system, we carried out analysis and comparisons of the arc resistance of arcs with different lengths and different currents, as well as a study of the relationship between the macro-morphology and the resistance of the arcs. Conclusions were drawn from the experimental re- sults: the arc voltage had obvious saturation characteristics; the arc resistance increased with the increase of arc length and the decrease of current; the arcs bended or extended significantly in time and the peak arc voltage within a single cycle increased correspondingly; the arcs had voltage and current in the same phase. In the end, a formula of arc resistance based on the experiment results is derived.YU Zhanqing YU Junjie ZENG Rong CHEN He PENG Xiang 2013高电压技术2013,39,8:3
8Rice metabolic regulatory network spanning the entire life cycle显示文摘As one of the most important crops in the world,rice(Oryza sativa)is a model plant for metabolome research.Although many studies have focused on the analysis of specific tissues,the changes in metab-olite abundance across the entire life cycle have not yet been determined.In this study,combining both tar-geted and nontargeted metabolite profiling methods,a total of 825 annotated metabolites were quantified in rice samples from different tissues covering the entire life cycle.The contents of metabolites in different tissues of rice were significantly different,with various metabolites accumulating in the plumule and radicle during seed germination.Combining these data with transcriptome data obtained from the same time period,we constructed the Rice Metabolic Regulation Network.The metabolites and co-expressed genes were further divided into 12 clusters according to their accumulation patterns,with members within each cluster displaying a uniform and clear pattern of abundance across development.Using this dataset,we established a comprehensive metabolic profile of the rice life cycle and used two independent strategies to identify novel transcription factors-namely the use of known regulatory genes as bait to screen for new networks underlying lignin metabolism and the unbiased identification of new glycerophospholipid metabolism regulators on the basis of tissue specificity.This study thus demonstrates how guilt-by-association analysis of metabolome and transcriptome data spanning the entire life cycle in cereal crops provides novel resources and tools to aid in understanding the mechanisms underlying important agro-nomic traits.Chenkun Yang Shuangqian Shen Shen Zhou Yufei Li Yuyuan Mao Junjie Zhou Yuheng Shi Longxu An Qianqian Zhou Wenju Peng Yuanyuan Lyu Xuemei Liu Wei Chen Shouchuang Wang Lianghuan Qu Xianqing Liu Alisdair R.Fernie Jie Luo 2022Molecular Plant2022,15,2:3
9Spatial Analysis of HIV/AIDS Cases Among Out-of-School Youth Aged 15-24 Years-China,2010-2020显示文摘Summary What is already known about this topic?There are 4,000 new HIV infections every day worldwide,and 31%of which are in adolescents aged 15–24 years old.However,previous study is not aware of the distribution of out-of-school youth among this age group.Shaorong Wang Junjie Wang Peng Xu Wanting Lyu Mengjie Han 2021China CDC weekly2021,3,48:3
10Synthesis and photocatalytic activity of ZnO-Au_(25) nanocomposites显示文摘ZnO-Au_(25) nanocomposites were synthesized by doping Au_(25) nanoclusters into the porous Zn O nanospheres. It was notable that the ultrasmall Au_(25) nanoclusters possessed uniform sizes and fine dispersibility on the porous ZnO supports. A considerable correlation between the loading of Au_(25) nanoclusters and the photocatalytic activity was found. Compared with the pure ZnO nanospheres, the ZnO-Au_(25) nanocomposites exhibited more efficient photocatalytic activity in terms of degradation of Rhodamine B(RhB) in an aqueous solution. In addition, the possible photocatalytic mechanisms are discussed in this work. This strategy may be helpful for preparing other novel hybrid nanocomposites with well-defined structures and superior performances.Junjie Hu Hai Yuan Peng Li Jian Wang Qiankun Liu Hui Wang Qilin Wang Xiaoyou Yuan 2016Science China Chemistry2016,59,3:2
11Bimetallic PdCo catalyst for selective direct formylation of amines by carbon monoxide显示文摘高度有效、选择的二金属的 Pd 0.88 公司 0.12 nanoparticle 催化剂被碳一氧化物为胺的直接 N-formylation 开发。这催化剂与大量底层兼容,负担得起在实际、温和的反应条件下面的各种各样的综合地有用的 formamides。Yifeng Chen Junjie Mao Rongan Shen Dingsheng Wang Qing Peng Zhixin Yu Huifang Guo Wei He 2017Nano Research2017,10,3:2
12Downregulation of gas5 increases pancreatic cancer cell proliferation by regulating CDK6显示文摘Xiongxiong Lu Yuan Fang Zhengting Wang Junjie Xie Qian Zhan Xiaxing Deng Hao Chen Jiabin Jin Chenghong Peng Hongwei Li Baiyong Shen 2013Cell and Tissue Research2013,,:2
13High Performance Viterbi Decoder on Cell/B.E.显示文摘Viterbi decoding is widely used in many radio systems. Because of the large computation complexity, it is usually implemented with ASIC chips, FPGA chips, or optimized hardware accelerators. With the rapid development of the multicore technology, multicore platforms become a reasonable choice for software radio (SR) systems. The Cell Broadband Engine processor is a state-of-art multi-core processor designed by Sony, Toshiba, and IBM. In this paper, we present a 64-state soft input Viterbi decoder for WiMAX SR Baseband system based on the Cell processor. With one Synergistic Processor Element (SPE) of a Cell Processor running at 3.2GHz, our Viterbi decoder can achieve the throughput up to 30Mb/s to decode the tail-biting convolutional code. The performance demonstrates that the proposed Viterbi decoding implementation is very efficient. Moreover, the Viterbi decoder can be easily integrated to the SR system and can provide a highly integrated SR solution. The optimization methodology in this module design can be extended to other modules on Cell platform.Lai Junjie Tang Jun Peng Yingning Chen Jianwen 2009China Communications2009,6,2:2
14Frequent RNF43 mutation contributes to moderate activation of Wnt signaling in colorectal signet-ring cell carcinoma显示文摘Dear Editor,Signet-ring cell carcinoma(SRCC)is a rare subtype of colorectal cancer(CRC)characterized histologically by the accumulation of mucins in the cytoplasm and displacement of nuclei to the cellular periphery,accounting for about 1%CRC(Fig.S1A)(Borger et al.,2007).Compare to common subtypes of CRC,such as adenocarcinoma(AC)and mucinous adenocarcinoma(MAC),SRCC is associated with aggressive behaviors and younger age at presentation(Kang et al.,2005;Sung et al.,2008;Nitsche et al.,2013;Hugen et al.,2014;Inamura et al.,2015).A retrospective analysis of CRC patient's data at Fudan University Shanghai Cancer Center(FUSCC)also indicated a worse overall and disease-free survival of SRCC patients(Fig.S1B and S1C,Table S1).Yaqi Li Jian Li Renjie Wang Long Zhang Guoxiang Fu Xueying Wang Yebin Wang Chuantao Fang Dandan Zhang Duo Du Xiaoji Ma Mengxue Pan Qiang Guo Xiaoya Xu Xiang Hu Yi Zhou Shaobo Mo Huijun Wang Jianjun Gao Shenglin Huang Yun Liu Sanjun Cai Guoqiang Hua Junjie Peng Fa-Xing Yu 2020Protein & Cell2020,11,4:2
15Four COVID-19 Cases of New Variant B.1.351 First Emerging in South Africa in Chinese Passengers on Same Flight-Shenzhen,China,January 2021显示文摘At 04∶50 on January 1,2021,a 36-year-old Chinese project manager(Case A),a 29-year-old Chinese worker(Case B),and a 53-year-old Chinese businessman(Case C)returned from Africa(Case A and B from South Africa and Case C from Lesotho)on the same flight and tested coronavirus disease 2019(COVID-19)RNA positive by real-time polymerase chain reaction(PCR)by Baoan District People’s Hospital.Shenzhen CDC received their oral nasopharyngeal swabs packages from the hospital and retested COVID-19 RNA positive at 09∶50.Meanwhile,Case D.Cong Cheng Lei Wang Ziquan Lyu Bo Peng Yinghui Li Dongfeng Kong Le Zuo Xiaomin Zhang Chao Yang Weiwen Liu Jia Wan Yijun Tang Junjia He Ying Wen Shule Xu Weihua Wu Ying Chen Guangnan Liu Junjie Xia Xuan Zou Renli Zhang Qinghua Hu Shujiang Mei Tiejian Feng 2021China CDC weekly2021,3,8:2
16Real-time whole-brain imaging of hemodynamics and oxygenation at micro-vessel resolution with ultrafast wide-field photoacoustic microscopy显示文摘High-speed high-resolution imaging of the whole-brain hemodynamics is critically important to facilitating neurovascular research.High imaging speed and image quality are crucial to visualizing real-time hemodynamics in complex brain vascular networks,and tracking fast pathophysiological activities at the microvessel level,which will enable advances in current queries in neurovascular and brain metabolism research,including stroke,dementia,and acute brain injury.Further,real-time imaging of oxygen saturation of hemoglobin(sO_(2))can capture fast-paced oxygen delivery dynamics,which is needed to solve pertinent questions in these fields and beyond.Here,we present a novel ultrafast functional photoacoustic microscopy(UFF-PAM)to image the whole-brain hemodynamics and oxygenation.UFF-PAM takes advantage of several key engineering innovations,including stimulated Raman scattering(SRS)based dual-wavelength laser excitation,water-immersible 12-facet-polygon scanner,high-sensitivity ultrasound transducer,and deep-learning-based image upsampling.A volumetric imaging rate of 2 Hz has been achieved over a field of view(FOV)of 11×7.5×1.5 mm^(3) with a high spatial resolution of~10 μm.Using the UFF-PAM system,we have demonstrated proof-of-concept studies on the mouse brains in response to systemic hypoxia,sodium nitroprusside,and stroke.We observed the mouse brain's fast morphological and functional changes over the entire cortex,including vasoconstriction,vasodilation,and deoxygenation.More interestingly,for the first time,with the whole-brain FOV and micro-vessel resolution,we captured the vasoconstriction and hypoxia simultaneously in the spreading depolarization(SD)wave.We expect the new imaging technology will provide a great potential for fundamental brain research under various pathological and physiological conditions.Xiaoyi Zhu Qiang Huangl Anthony Dispirito Tri Vu Qiangzhou Rong Xiaorui Peng Huaxin Sheng Xiling Shen Qifa Zhou Laiming Jiang Ulrike Hoffmann Junjie Yao 2022Light(Science & Applications)2022,11,6:2
17MKP-1 reduces Aβ generation and alleviates cognitive impairments in Alzheimer’s disease models显示文摘Mitogen-activated protein kinase(MAPK)phosphatase 1(MKP-1)is an essential negative regulator of MAPKs by dephosphorylating MAPKs at both tyrosine and threonine residues.Dysregulation of the MAPK signaling pathway has been associated with Alzheimer’s disease(AD).However,the role of MKP-1 in AD pathogenesis remains elusive.Here,we report that MKP-1 levels were decreased in the brain tissues of patients with AD and an AD mouse model.The reduction in MKP-1 gene expression appeared to be a result of transcriptional inhibition via transcription factor specificity protein 1(Sp1)cis-acting binding elements in the MKP-1 gene promoter.Amyloid-β(Aβ)-induced Sp1 activation decreased MKP-1 expression.However,upregulation of MKP-1 inhibited the expression of both Aβprecursor protein(APP)andβ-site APP-cleaving enzyme 1 by inactivating the extracellular signal-regulated kinase 1/2(ERK)/MAPK signaling pathway.Furthermore,upregulation of MKP-1 reduced Aβproduction and plaque formation and improved hippocampal long-term potentiation(LTP)and cognitive deficits in APP/PS1 transgenic mice.Our results demonstrate that MKP-1 impairment facilitates the pathogenesis of AD,whereas upregulation of MKP-1 plays a neuroprotective role to reduce Alzheimer-related phenotypes.Thus,this study suggests that MKP-1 is a novel molecule for AD treatment.Yehong Du Yexiang Du Yun Zhang Zhilin Huang Min Fu Junjie Li Yayan Pang Peng Lei Yu Tian Wang Weihong Song Guiqiong He Zhifang Dong 2019Signal Transduction and Targeted Therapy2019,4,1:2
18Design and construction of the motion mechanism of an XY micro-stage for precision positioning显示文摘Yuki Shimizu Yuxin Peng Junji Kaneko Toyohiro Azuma So Ito Wei Gao Tien-Fu Lu 2013Physical2013,,:1
19Shucking of bay scallop ( Argopecten irradians ) using high hydrostatic pressure and its effect on microbiological and physical quality of adductor muscle显示文摘Junjie Yi Qian Xu Xiaosong Hu Peng Dong Xiaojun Liao Yan Zhang 2013Innovative Food Science and Emerging Technologies2013,,:1
20A Vaccine Based on the Receptor-Binding Domain of the Spike Protein Expressed in Glycoengineered Pichia pastoris Targeting SARS-CoV-2 Stimulates Neutralizing and Protective Antibody Responses显示文摘In 2020 and 2021,severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),a novel coronavirus,caused a global pandemic.Vaccines are expected to reduce the pressure of prevention and control,and have become the most effective strategy to solve the pandemic crisis.SARS-CoV-2 infects the host by binding to the cellular receptor angiotensin converting enzyme 2(ACE2)via the receptor-binding domain(RBD)of the surface spike(S)glycoprotein.In this study,a candidate vaccine based on a RBD recombinant subunit was prepared by means of a novel glycoengineered yeast Pichia pastoris expression system with characteristics of glycosylation modification similar to those of mammalian cells.The candidate vaccine effectively stimulated mice to produce high-titer anti-RBD specific antibody.Furthermore,the specific antibody titer and virus-neutralizing antibody(NAb)titer induced by the vaccine were increased significantly by the combination of the double adjuvants Al(OH)_(3) and CpG.Our results showed that the virus-NAb lasted for more than six months in mice.To summarize,we have obtained a SARS-CoV-2 vaccine based on the RBD of the S glycoprotein expressed in glycoengineered Pichia pastoris,which stimulates neutralizing and protective antibody responses.A technical route for fucose-free complex-type N-glycosylation modified recombinant subunit vaccine preparation has been established.Bo Liu Ying Yin Yuxiao Liu Tiantian Wang Peng Sun Yangqin Ou Xin Gong Xuchen Hou Jun Zhang Hongguang Ren Shiqiang Luo Qian Ke Yongming Yao Junjie Xu Jun Wu 2022Engineering2022,8,6:1
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