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162篇 您的检索式:作者名="Jianfeng ZHU"
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1Effect of myosin heavy chain composition of muscles on meat quality in Laiwu pigs and Duroc显示文摘In order to explain the mechanism of high meat quality in Laiwu pigs and investigate the relation between myosin heavy chains (MyHC) composition and meat quality, meat quality analysis was conducted and mRNA expression of MyHC I, IIa, IIx, IIb was quantified by real-time fluorescence PCR in longissimus muscle (LM) and semimembranous muscle of Laiwu pigs and Duroc. The result indicated that, compared with Duroc, mRNA expression of MyHC IIa, IIx in LM and semimembranous muscle of Laiwu pigs was significantly increased, mRNA expression of MyHC IIb was dramatically decreased. However, the expression of MyHC I was not significantly affected by breeds. The correlation between mRNA expression of MyHC I, IIa, IIx in LM and meat color, pH value, marbling, intramuscular fat content was positive, but shear value of LM was negative. The relation between MyHC IIb mRNA expression and marbling, intramuscular fat content was dramatically negative, whereas shear value was strikingly positive, as well as fiber diameter, but without reaching statistical significance. Therefore, the composition of MyHC I, IIa, IIx, IIb affected meat quality, furthermore, expression of MyHC I, IIa, IIx, IIb mRNA prominently influenced meat characteristics, especially edible quality of muscle, suggesting that mRNA expression level of MyHC I, IIa, IIx, IIb can exactly and impersonally estimate meat quality.HU HongMei, WANG JiYing, ZHU RongSheng, GUO JianFeng & WU Ying Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan 250100, China 2008Science China(Life Sciences)2008,51,2:26
2Pyrite Surface after ThiobaciUusferrooxidans Leaching at 30℃显示文摘In order to investigate the effect of Thiobacillus ferrooxidans on the oxidation of pyrite, two parallel experiments, which employed H2SO4 solutions and acidic solutions inoculated with Thiobacillus ferrooxidans, were designed and carried out at 30℃. The initial pH of the two solutions was adjusted to 2.5 by dropwise addition of concentrated sulphuric acid. The surfaces of pyrite before exposure to leaching solutions and after exposure to the H2SO4 solutions and acidic solutions inoculated with Thiobacillus ferrooxidans were observed by scanning electron microscopy (SEM). There were a variety of erosion patterns by Thiobacillus ferrooxidans on the bio-leached pyrite surfaces. A conclusion can be drawn that the oxidation of pyrite might have been caused by erosion of the surfaces. Attachment of the bacteria to pyrite surfaces resulted in erosion pits, leading to the oxidation of pyrite. It is possible that the direct mechanism plays the most important role in the oxidation of pyrite. The changes in iron ion concentrations of both the experimental solutions with time suggest that Thiobacillus ferrooxidans can enhance greatly the oxidation of pyrite.LU Jianjun LU Xiancai WANG Rucheng LI Juan ZHU Changjian GAO Jianfeng 2006Acta Geologica Sinica(English Edition)2006,80,3:16
3Accumulation and Reformation of Silurian Reservoir in the Northern Tarim Basin显示文摘Silurian sandstone in Tarim Basin has good reservoir properties and active oil and gas shows,especially thick widely-distributed bituminous sandstone.Currently,the Silurian was found containing both bitumen and conventional reservoirs,with petroleum originating from terrestrial and marine source rocks.The diversity of their distribution was the result of 'three sources,three stages' accumulation and adjustment processes.'Three sources' refers to two sets of marine rocks in Cambrian and Middle-Upper Ordovician,and a set of terrestrial rock formed in Triassic in the Kuqa depression.'Three stages' represents three stages of accumulation,adjustment and reformation occurring in Late Caledonian,Late Hercynian and Late Himalayan,respectively.The study suggests that the Silurian bitumen is remnants of oil generated from Cambrian and Ordovician source rocks and accumulated in the sandstone reservoir during Late Caledonian-Early Hercynian and Late Hercynian stages,and then damaged by the subsequent two stages of tectonic uplift movements in Early Hercynian and Pre-Triassic.The authors presumed that the primary paleo-reservoirs formed during these two stages might be preserved in the Silurian in the southern deep part of the Tabei area.Except for the Yingmaili area where the Triassic terrestrial oil was from the Kuqa Depression during Late Himalayan Stage,all movable oil reservoirs originated from marine sources.They were secondary accumulations from underlying Ordovician after structure reverse during the Yanshan-Himalayan stage.Oil/gas shows mixed-source characteristics,and was mainly from Middle-Upper Ordovician.The complexity and diversity of the Silurian marine primary properties were just defined by these three stages of oil-gas charging and tectonic movements in the Tabei area.ZHU Guangyou CUI Jie SU Jin YANG Haijun ZHANG Bin HU Jianfeng ZHU Yongfeng 2012Acta Geologica Sinica(English Edition)2012,86,1:13
4Chang'E-1 Lunar Mission:An Overview and Primary Science Results显示文摘Chang'E-1 is the first lunar mission in China,which was successfully launched on Oct.24th,2007.It was guided to crash on the Moon on March 1,2009,at 52.36°E,1.50°S,in the north of Mare Fecunditatis.The total mission lasted 495 days,exceeding the designed life-span about four months.1.37Terabytes raw data was received from Chang'E-1.It was then processed into 4Terabytes science data at different levels.A series of science results have been achieved by analyzing and applicating these data,especially 'global image of the Moon of China's first lunar exploration mission'.Four scientific goals of Chang'E-1 have been achieved.It provides abundant materials for the research of lunar sciences and cosmochemistry.Meanwhile these results will serve for China's future lunar missions.Ouyang Ziyuan Li Chunlai Lu Chang Liu Jianzhong Zou Yongliao Zhang Hongbo Jianjun Zuo Wei Su Yah Wen Weibin Bian Wei Zhao Baochang Wang Jianyu Yang Jianfeng Chang Jin Wang Huanyu Zhang Xiaohui Wang Shijin Wang Min Ren Xin Mu Lingli Kong Deqing Wang Xiaoqian Wang Fang Geng Liang Zhang Zhoubin Zheng Lei Zhu Xinying Zheng Yongchun Li Junduo Zou Xiaoduan Xu Chun Shi Shuobiao Gao Yifei Gao Guannan 2010空间科学学报2010,30,5:11
5Performance of the Prostate Health Index in predicting prostate biopsy outcomes among men with a negative digital rectal examination and transrectal ultrasonography显示文摘[-2]proPSA (p2PSA ) 和它的衍生物, p2PSA-to-free PSA 比率(% p2PSA ) ,和前列腺健康索引(PHI ) 极大地在前列腺活体检视有或没有前列腺癌症(PCa ) 改进了在人之间的辨别。然而,很少在数字直肠的考试(DRE ) 和 transrectal ultrasonography (TRUS ) 是否定的情况中对他们的表演被知道。在有否定 DRE 和 TRUS 的中国的 261 个连续病人的一个未来的队被招募并且经历前列腺活体检视。在活体检视被用来测量各种各样的 PSA 衍生物以前,一件浆液样品收集了,包括总数前列腺特定的抗原(tPSA ) ,免费 PSA,和 p2PSA。为每个病人, free-to-total PSA 比率(% fPSA ) , PSA 密度(PSAD ) , p2PSA-to-free PSA 比率(% p2PSA ) ,和 PHI 是计算的。歧视的性能在在 91% 敏感操作典型曲线(AUC ) 和活体检视率的接收装置下面用区域被估计。在关于年龄, tPSA, % fPSA, PSAD, p2PSA, % p2PSA,和 PHI 的全部队以内的 AUC 分数分别地是 0.598, 0.751, 0.646, 0.789, 0.814, 0.808,和 0.853。PHI 是前列腺活体检视结果的最好的预言者,特别在有 10.1-20 ng ml −1 的 tPSA 的病人。与另外的标记相比,在 91% 的敏感, PHI 为决定哪个人不需要经历活体检视是最有用的,从而避免不必要的过程。PHI 的使用能由在中国与否定 DRE 和 TRUS 在人之中预言前列腺活体检视结果改进 PCa 察觉的精确性。Guo-Peng Yu Rong Na Ding-Wei Ye Jun Qi Fang Liu Hai-Tao Chen Yi-Shuo Wu Gui-Ming Zhang Jie-Lin Sun Yao Zhu Li-Qun Huang Shan-Cheng Ren De-Ke Jiang S Lilly Zheng Hao-WenJiang Ying-Hao Sun Qiang Ding Jianfeng Xu 2016Asian Journal of Andrology2016,18,4:10
6Microstructure, mechanical properties and deformation mechanisms of an as-cast Mg–Zn–Y–Nd–Zr alloy for stent applications显示文摘A new Mg-2Zn-0.2Y -0.5N d-0.4Zr (wt%) alloy designed specially for stent applications has been developed. The as-cast alloy is featured with equiaxed grains with a mean size of about 40 μm and a small am ount of second phase (T phase) distributed discontinuously either at the grain boundaries or inside the grains. This alloy exhibits a tensile elongation of up to 35%, which is much larger than that of most reported other as-cast Mg alloys. The tensile deform ation mechanisms have also been investigated. The results show that, besides basal slip,{10-12} extension twining and non-basal pyramidal slips can also be observed at initial stage and later stage during tensile deform ation, respectively, which are responsible for the good room -tem perature ductility.Jianfeng Wang Hongbo Zhou Liguo Wang Shijie Zhu Shaokang Guan 2019Journal of Materials Science & Technology2019,35,7:9
7Genetic characterization and linkage disequilibrium mapping of resistance to gray leaf spot in maize(Zea mays L.)显示文摘Gray leaf spot(GLS),caused by Cercospora zeae-maydis,is an important foliar disease of maize(Zea mays L.)worldwide,resistance to which is controlled by multiple quantitative trait loci(QTL).To gain insights into the genetic architecture underlying the resistance to this disease,an association mapping population consisting of 161 inbred lines was evaluated for resistance to GLS in a plant pathology nursery at Shenyang in 2010 and 2011.Subsequently,a genome-wide association study,using 41,101 single-nucleotide polymorphisms(SNPs),identified 51 SNPs significantly(P<0.001)associated with GLS resistance,which could be converted into 31 QTL.In addition,three candidate genes related to plant defense were identified,including nucleotidebinding-site/leucine-rich repeat,receptor-like kinase genes similar to those involved in basal defense.Two genic SNPs,PZE-103142893 and PZE-109119001,associated with GLS resistance in chromosome bins 3.07 and 9.07,can be used for marker-assisted selection(MAS)of GLS resistance.These results provide an important resource for developing molecular markers closely linked with the target trait,enhancing breeding efficiency.Liyu Shi Xiangling Lv Jianfeng Weng Hanyong Zhu Changlin Liu Zhuanfang Hao Yu Zhou Degui Zhang Mingshun Li Xiaoke Ci Xinhai Li Shihuang Zhang 2014The Crop Journal2014,2,Z1:9
8Olivine-norite rock detected by the lunar rover Yutu-2 likely crystallized from the SPA-impact melt pool显示文摘Chang’E-4 landed in the South Pole-Aitken(SPA)basin,providing a unique chance to probe the composition of the lunar interior.Its landing site is located on ejecta strips in Von Karm´an crater that´possibly originate from the neighboring Finsen crater.A surface rock and the lunar regolith at 10 sites along the rover Yutu-2 track were measured by the onboard Visible and Near-Infrared Imaging Spectrometer in the first three lunar days of mission operations.In situ spectra of the regolith have peak band positions at 1 and 2μm,similar to the spectral data of Finsen ejecta from the Moon Mineralogy Mapper,which confirms that the regolith’s composition of the landing area is mostly similar to that of Finsen ejecta.The rock spectrum shows similar band peak positions,but stronger absorptions,suggesting relatively fresh exposure.The rock may consist of 38.1±5.4%low-Ca pyroxene,13.9±5.1%olivine and 48.0±3.1%plagioclase,referred to as olivine-norite.The plagioclase-abundant and olivine-poor modal composition of the rock is inconsistent with the origin of the mantle,but representative of the lunar lower crust.Alternatively,the rock crystallized from the impact-derived melt pool formed by the SPA-impact event via mixing the lunar crust and mantle materials.This scenario is consistent with fast-cooling thermal conditions of a shallow melt pool,indicated by the fine to medium-sized texture(<3 mm)of the rock and the SPA-impact melting model[Icarus 2012;220:730–43].Honglei Lin Zhiping He Wei Yang Yangting Lin Rui Xu Chi Zhang Meng-Hua Zhu Rui Chang Jinhai Zhang Chunlai Li Hongyu Lin Yang Liu Sheng Gou Yong Wei Sen Hu Changbin Xue Jianfeng Yang Jie Zhong Xiaohui Fu Weixing Wan Yongliao Zou 2020National Science Review2020,7,5:9
9溃疡性结肠炎内镜下严重度指数(UCEIS评分)与Mayo内镜评分(MES)用于预测急性重症结肠炎患者行肠切除术的比较研究显示文摘背景溃疡性结肠炎内镜下严重度指数(UCEIS)和Mayo内镜评分(MES)都是溃疡性结肠炎(UC)内镜下严重程度的客观评估方法,然而,对于这两种评分方法能否用于筛选出需要行结肠切除术的急性重症结肠炎患者,目前仍不明了。方法:对2012年1月至2016年5月间连续收治的ASC患者进行回顾性分析。提取并分析入组患者的人口统计资料、既往治疗史、疾病特征资料、实验室指标、药物治疗及内镜评估等资料。主要结局指标是住院和随访期间需行结肠切除术的患者比例。结果:92例患者纳入研究,其中37例(40.2%)需行结肠切除术。多因素分析显示,UCEIS评分是需行结肠切除术的独立预测因素(OR=3.25,95%CI:1.77~5.97;P<0.001)。UCEIS评分的ROC曲线下面积为0.85;以7分作为最佳阈值,其预测需行结肠切除术的敏感度为60.3%,特异度为85.5%。UCEIS评分对于需要行结肠切除术的预测价值优于MES评分,后者曲线下面积仅为0.65。当UCEIS评分≥7分时,有80%的ASC患者最终需行结肠切除术。结论:预测ASC患者的肠切除风险,UCEIS评分优于MES评分。对于USEIS≥7分的患者,由于其药物治疗失败风险较高,因此,可考虑早期行结肠切除术。Tingbin Xie Tenghui Zhang Chao Ding Xujie Dai Yi Li Zhen Guo Yao Wei Jianfeng Gong Weiming Zhu Jieshou Li 2018Gastroenterology Report2018,6,1:6
10Integrated genomic analysis identifies deregulated JAK/STAT-MYC-biosynthesis axis in aggressive NK-cell leukemia显示文摘好攻击的 NK 房间白血病(ANKL ) 是在从亚洲的人之中是更流行的 NK 房间瘤的一种稀罕形式并且中央并且南美洲。病人们通常在天以内死到月,甚至在收到迅速的治疗学的管理以后。这里,我们由集成整个染色体执行了 ANKL 的第一全面研究, transcriptome 并且定序指向,象功能的试金一样的 cytokine 数组。在 JAK-STAT 小径的变化在 48% 被识别(14/29 ) ANKL 病人,当细胞外的 STAT3 激发器 IL10 被 56 褶层的一般水准提高时(P < 0.0001 ) 在检查的所有病人的血浆。另外的经常变异的基因包括的 TP53 (34%) , TET2 (28%) , CREBBP (21%) 和 MLL2 (21%) 。耐心的 NK 白血病房间在多重新陈代谢的小径显示出 STAT3 phosphorylation, MYC 表示和 transcriptional 活动的突出的激活。机能上地, STAT3 激活和 MYC 表示为 ANKL 房间的增长和幸存是批评的。发信号的 STAT 调整了发信号的 MYC 抄写节目,和两 STAT, MYC 抄写被要求维持核苷酸合成和 glycolysis 的激活。一起, JAK-STAT 小径在 ANKL 为 genomic 改变和 IL10 刺激代表一个主要目标。这最新发现的 JAK/STAT-MYC-biosynthesis 轴可以在对待白血病的这种子类型为新奇治疗学的策略的发展提供机会。Liang Huang Dan Liu Na Wang Shaoping Ling Yuting Tang Jun Wu Lingtong Hao Hui Luo Xuelian Hu Lingshuang Sheng Lijun Zhu Di Wang Yi Luo Zhen Shang Min Xiao Xia Mao Kuangguo Zhou Lihua Cao Lili Dong Xinchang Zheng Pinpin Sui Jianlin He Shanlan Mo Jin Yan Qilin Ao Lugui Qiu Hongsheng Zhou Qifa Liu Hongyu Zhang Jianyong Li Jie Jin Li Fu Weili Zhao Jieping Chen Xin Du Guoliang Qing Hudan Liu Xin Liu Gang Huang Ding Ma Jianfeng Zhou Qian-fei Wang 2018Cell Research2018,28,2:5
11LSD1 inhibition suppresses the growth of clear cell renal cell carcinoma via upregulating P21signaling显示文摘Histone lysine-specific demethylase 1(LSD1) has been implicated in the disease progression of several types of solid tumors. This study provides the first evidence showing that LSD1 overexpression occurred in 62.6%(224/358) of clear cell renal cell carcinomas(ccRCC). LSD1 expression was associated with the progression of ccRCC, as indicated by TNM stage(P ? 0.006), especially tumor stage(P ? 0.017) and lymph node metastasis(P ? 0.030). High LSD1 expression proved to be an independent prognostic factor for poor overall survival(Po0.001) and recurrence-free survival(Po0.001) of ccRCC patients. We further show that LSD1 inhibition by siRNA knockdown or using the small molecule inhibitor SP2509 suppressed the growth of ccRCC in vitro and in vivo. Mechanistically, inhibition of LSD1 decreased the H3 K4 demethylation at the CDKN1 A gene promoter, which was associated with P21 upregulation and cell cycle arrest at G1/S in ccRCC cells. Our findings provide new mechanistic insights into the role of LSD1 in cc RCC and suggest the therapeutic potential of LSD1 inhibitors in ccRCC treatment.Liangsong Zhu Jianfeng Wang Wen Kong Jiwei Huang Baijun Dong Yiran Huang Wei Xue Jin Zhang 2019Acta Pharmaceutica Sinica B2019,9,2:5
12nduction of M2-1ike macrophages in recipient NOD-scid mice by allogeneic donor CD4+CD25+ regulatory T cells显示文摘CD4 + 规章的 T 细胞(Tregs ) 玩的 CD25 + 在经由显型的规定和天生、适应的有免疫力的细胞的功能维持宿主免疫者忍耐的一个重要角色。是否 allogeneic CD4 + CD25 + Tregs 能调整接受者老鼠巨噬细胞是未知的。allogeneic 施主 CD4 + 接受者老鼠居民 F4/80 ++ Tregs > 巨噬细胞用在的一个老鼠模型被调查 allogeneic 施主 CD4 + CD25 + Tregs 采纳地被变成主人 NOD-scid 老鼠的腹洞。接受者巨噬细胞的显型和功能当时是 assayed。在收到了 allogeneic CD4 ++巨噬细胞> CD25 + Tregs 显著地表示了 CD23 的高水平并且规划了房间 death-ligand 1 ( PD-L1 )并且 CD80 的底层, CD86 ,与收到了任何一个 allogeneic CD4 + CD25 T 房间( Teffs )或没有房间。接受者老鼠的居民 F4/80 + 巨噬细胞与 allogeneic 施主 CD4 + 显著地显示的 CD25 + Tregs 和增加的 IL-10 生产增加了鸡红血房间(cRBCs ) 和 arginase 活动的吞噬作用,而这些巨噬细胞也显示出减少的 immunogenicity 和氮的氧化物(没有) 生产。部分,但是显著地堵住 arginase 颠倒了 CD4 + 关于在 vivo 的 M2 巨噬细胞的正式就职的 CD25 + Tregs。因此, allogeneic 施主 CD4 + CD25 + Tregs 能经由一条 arginase 小径部分地至少在接受者老鼠导致 M2 巨噬细胞。我们在 vivo 证据提供了支持由的未知小径 allogeneic 施主 CD4 + CD25 + Tregs 由支持 M2 巨噬细胞的区别在接受者老鼠调整天生的豁免。Xuelian Hu Guangwei Liu Yuzhu Hou Jianfeng Shi Linnan Zhu Di Jin Jianxia Peng Yong Zhao 2012Cellular & Molecular Immunology2012,9,6:5
13Effects of Buyang Huanwu decoction on cell proliferation and differentiation in the hippocampal dentate gyrus of aged rats following cerebral ischemia/reperfusion显示文摘BACKGROUND:The mobilization of endogenous stem cells is an effective way to promote repair following ischemic brain damage.Buyang Huanwu decoction(BHD) can effectively improve cerebral blood flow and protect against cerebral ischemia/reperfusion damage. OBJECTIVE:To study the effects of BHD on cell proliferation and differentiation in the hippocampal dentate gyrus of rats following cerebral infarction,to investigate the protective effects of BHD against cerebral infarction,and to analyze the dose-effect relationship. DESIGN,TIME AND SETTING:This randomized,controlled,animal study was performed at the Laboratory of Department of Physiology,Henan College of Traditional Chinese Medicine,China from June 2007 to February 2008. MATERIALS:A total of 36 male,Sprague Dawley rats,aged 20-21 months,were equally and randomly assigned to the following groups:sham operation,model control,and nimodipine,as well as high-dose,moderate-dose,and low-dose BHD.BHD was composed of milkvetch root,Chinese angelica,red peony root,earthworm,peach seed,safflower,and Szechwan Iovage rhizome,which were provided by the Outpatient Department,Henan College of Traditional Chinese Medicine, China. METHODS:The Chinese medicinal ingredients described above were decocted.The external carotid artery was ligated in rats from the sham operation group.Rat models of focal cerebral infarction were established by middle cerebral artery occlusion in the model control and nimodipine groups,as well as the high-dose,moderate-dose,and low-dose BHD groups.The drugs were administered by gavage 5 days,as well as 2 hours,prior to model induction.Rats in the nimodipine group were daily administered a 6 mg/kg nimodipine suspension by gavage.Rats in the high-dose, moderate-dose,and low-dose BHD groups were administered daily 26,13,and 6.5 g/kg BHD, respectively.Rats in the sham operation and model control groups were treated with an equal volume of saline. MAIN OUTCOME MEASURES:The effects of BHD on neurological dysfunction score,brain water content,cell proliferation and differentiation in the hippocampal dentate gyrus,and pathological changes in the ischemic brain hemisphere were measured in cerebral infarction rats. RESULTS:Compared with the sham operation group,the neurological dysfunction score,brain water content,number of BrdU-positive cells,BrdU/NeuN-positive cells,and BrdU/GFAP-positive cells in the hippocampal dentate gyrus significantly increased in the model control group(P<0.01). Compared with the model control group,neurological dysfunction score and brain water content were significantly decreased(P<0.01 or 0.05),as were the number of BrdU-positive and BrdU/NeuN-positive cells(P<0.01 or 0.05).The number of BrdU/GFAP-positive cells was significantly reduced(P<0.05) in the nimodipine group,high-dose,moderate-dose,and low-dose BHD groups.Compared with the nimodipine group,the neurological dysfunction score was significantly reduced in the moderate-dose BHD group(P<0.05).However,the number of BrdU-positive cells was significantly increased in the rat hippocampal dentate gyrus in the high-dose and moderate-close BHD groups(P<0.01 or 0.05).The following was determined by microscopy: slightly disarranged neural cells,mild vascular dilatation,inflammatory cell infiltration,and light tissue edema were observed in the nimodipine group;inflammatory cell infiltration was reduced in the low-dose BHD group;cerebral edema and inflammatory cell infiltration were significantly reduced in the high-dose and in the moderate-dose BHD group.Electron microscopy revealed lipofuscin, slightly swollen mitochondria,and normal rough endoplasmic reticulum in the high-dose and moderate-dose BHD groups.Improvement was best in the moderate-dose BHD group. CONCLUSION:Cerebral ischemia activated proliferation of neural stem cells in the rat hippocampal dentate gyrus.The actions of BHD against cerebral ischemia/reperfusion damage correlated with proliferation and differentiation of neural stem cells in the hippocampal dentate gyrus.A moderate-dose of BHD resulted in the most effective outcome.Jianfeng Gao Fenghua Lu Changlian Zhu 2009Neural Regeneration Research2009,4,5:5
14Cooperative Spectrum Allocation with QoS Support in Cognitive Cooperative Vehicular Ad Hoc Networks显示文摘To solve the contradiction between the increasing demand of diverse vehicular wireless applications and the shortage of spectrum resource,a novel cognitive cooperative vehicular ad-hoc network(CCVANET) framework is proposed in this paper.Firstly,we develop an adaptive cognitive spectrum sensing(ACSS) mechanism which can help to trigger and adjust the spectrum sensing window according to network traffic load status and communication quality.And then,Generalized Nash Bargaining Solution(GNBS),which can achieve a good tradeoff between efficiency and weighted fairness,is proposed to formulate the asymmetric intercell resource allocation.Finally,GNBSSafety(GNBS-S) scheme is developed to enhance the Quality of Service(QoS) of safety applications,especially in the heavy load status,where the bandwidth demanded and supplied cannot be matched well.Furthermore,the primary user activity(PUA)which can cause rate loss to secondary users,is also considered to alleviate its influence to fairness.Simulation results indicate that the proposed CC-VANET scheme can greatly improve the spectrum efficiency and reduce the transmission delay and packet loss rate on the heavy contention status.And GNBS spectrum allocation scheme outperforms both the Max-min and Max-rate schemes,and can enhance the communication reliability of safety service considerably in CC-VANET.ZHANG Lei LUO Tao LIU Wei ZHU Siting LI Jianfeng 2014China Communications2014,11,10:5
15CHARGING STATION PLANNING FOR PLUG-IN ELECTRIC VEHICLES显示文摘为计划插件的问题的收费车站的一个新奇模型考虑到用户每天旅行,电的车辆在这份报纸被建议。与最小化全部的费用的目的,包括收费,车站花费了(包括安装,费用和管理花费了)并且用户花费了(包括车站存取费用和收费费用),建议模型同时处理这些问题在哪儿并且多少定位收费车站在各收费要证实的充电器驻扎。就那而言,不同用户可以有车站存取费用和收费费用的不同感觉,二个案例(即,同类的用户和异构的用户) 典型地被调查。不同贴现率,收费车站的操作时期,电的车辆的数字和在收费车站的地点上控告车站的数字的影响也被学习。模拟结果不仅证明根据用户的旅行行为定位收费车站是很重要的,而且验证建议模型的有效性。Zhihong Zhu Ziyou Gao Jianfeng Zheng Haoming Du 2018Journal of Systems Science and Systems Engineering2018,27,1:4
16Implementation of regional Acute Stroke Care Map increases thrombolysis rates for acute ischaemic stroke in Chinese urban area in only 3 months显示文摘Background The rate of intravenous thrombolysis for acute ischaemic stroke remains low in China.We investigated whether the implementation of a citywide Acute Stroke Care Map(ASCaM)is associated with an improvement of acute stroke care quality in a Chinese urban area.Methods The ASCaM comprises 10 improvement strategies and has been implemented through a network consisting of 20 tertiary hospitals.We identified 7827 patients with ischaemic stroke admitted from April to October 2017,and 506 patients underwent thrombolysis were finally included for analysis.Results Compared with‘pre-ASCaM period’,we observed an increased rate of administration of tissue plasminogen activator within 4.5 hours(65.4% vs 54.5%;adjusted OR,1.724;95% CI 1.21 to 2.45;p=0.003)during‘ASCaM period’.In multivariate analysis models,‘ASCaM period’was associated with a significant reduction in onset-to door time(114.1±55.7 vs 135.7±58.4 min,p=0.0002)and onset-to needle time(ONT)(169.2±58.1 vs 195.6±59.3 min,p<0.0001).Yet no change was found in door-to needle time.Clinical outcomes such as symptomatic intracranial haemorrhage,favourable functional outcome(modified Rankin Scale≤2)and in-hospital mortality remained unchanged.Conclusion The implementation of ASCaM was significantly associated with increased rates of intravenous thrombolysis and shorter ONT.The ASCaM may,in proof-of principle,serve as a model to reduce treatment delay and increase thrombolysis rates in Chinese urban areas and possibly other highly populated Asian regions.Yi Sui Jianfeng Luo Chunyao Dong Liqiang Zheng Weijin Zhao Yao Zhang Ying Xian Huaguang Zheng Bernard Yan Mark Parsons Li Ren Ying Xiao Haoyue Zhu Lijie Ren Qi Fang Yi Yang Weidong Liu Bing Xu 2021Stroke & Vascular Neurology2021,6,1:4
17Molecular dynamics simulation of aluminum inhibited leaching during ion-adsorbed type rare earth ore leaching process显示文摘Molecular dynamics simulation was adopted to study the interaction between sulfosalicylic acid and aluminum,lanthanum and yttrium,and adsorption on kaolinite surfaces.A complexation reaction occurs between sulfosalicylic acid and aluminum,with an interaction energy of-10472.05 kJ/mol.O—Al covalent bonds are formed with a peak value of 7.93,while there is only weak adsorption between sulfosalicylic acid and rare earth ions.A hydrogen bonding reaction with 13605.82 kJ/mol energy occurs between sulfosalicylic acid and the surface of kaolinite(100).Thus,sulfosalicylic acid can form a complex with free aluminum ions,and can also be adsorbed on kaolinite by hydrogen bonding with aluminum in kaolinite(100)surfaces.Leaching of ion-adsorbed type rare earth ore was performed with aluminum inhibited,results show that when sulfosalicylic acid dosage increases from 0 to 0.15 wt%,aluminum ion concentration in the leaching solution decreases from 273.23 to 47.19 mg/L.And the effect of leaching pH value on the effect of sulfosalicylic acid on aluminum inhibition was studied,the result shows that,when the leaching pH value is 4.0—5.0,the rare earth leaching rate and the aluminum ion concentration basically remain unchanged.The molecular dynamics simulation results were verified by detection and analysis of XPS and SEM.Dongmei Zhu Tingsheng Qiu Jianfeng Zhong Qinghua Zeng Xihui Fang 2019Journal of Rare Earths2019,37,12:4
18Microstructure and texture evolution of fine-grained Mg-Zn-Y-Nd alloy micro-tubes for biodegradable vascular stents processed by hot extrusion and rapid cooling显示文摘Magnesium alloys have narrow available slip result from close-packed hexagonal structure that limit their processing properties.In the recent work,the Mg-2Zn-0.46Y-0.5Nd,as materials for degradable stents,was applied to produce as-extruded micro-tube with an outer diameter of 3.0mm and a wall thickness of 0.35mm by hot extrusion with an extrusion ratio of 105:1 at 653K and rapid cooling.The fine microstructure of the dynamic recrystallization of as-extruded micro-tube could be preserved by rapid cooling such as water-cooled,resulting in more excellent mechanical properties relative to air-cooled micro-tube.The addition of rare earth elements Y and Nd results in continuous dynamic recrystallization dominated the dynamic recrystallization mechanism.During the hot extrusion process,the activation of the non-basal slip system,especially the pyramidal(c+a)slip,could significantly weaken the texture strength,and the as-extruded micro-tube exhibits weak'RE'texture components(011^(-)1)||ED and(1^(-)21^(-)1)||ED.Hence,the magnesium alloy micro-tube prepared by the rapid cooling has fine microstructure and weak texture,which is favorable for further process and governance.Kaikai Guo Mengyao Liu Jianfeng Wang Yufeng Sun Weiqing Li Shijie Zhu Liguo Wang Shaokang Guan 2020Journal of Magnesium and Alloys2020,8,3:3
19First experimental constraints on WIMP couplings in the effective field theory framework from CDEX显示文摘We present weakly interacting massive particles(WIMPs) search results performed using two approaches of effective field theory from the China Dark Matter Experiment(CDEX), based on the data from both CDEX-1B and CDEX-10 stages. In the nonrelativistic effective field theory approach, both time-integrated and annual modulation analyses were used to set new limits for the coupling of WIMP-nucleon effective operators at 90% confidence level(C.L.) and improve over the current bounds in the low mχregion. In the chiral effective field theory approach, data from CDEX-10 were used to set an upper limit on WIMP-pion coupling at 90% C.L. We for the first time extended the limit to the m_(χ)<6 GeV/c^(2) region.Yi Wang Zhi Zeng Qian Yue LiTao Yang KeJun Kang YuanJing Li Mehment Agartioglu HaiPeng An JianPing Chang JingHan Chen YunHua Chen JianPing Cheng Cheng Yi Chiang WenHan Dai Zhi Deng ChangHao Fang XinPing Geng Hui Gong QiuJu Guo XuYuan Guo HongJian He Li He ShengMing He JinWei Hu TuChen Huang HanXiong Huang HaiTao Jia LiPing Jia Xi Jiang HauBin Li JianMin Li Jin Li MingXuan Li RenMingJie Li Xia Li YuLan Li Bin Liao FongKay Lin ShinTed Lin ShuKui Liu YanDong Liu Yu Liu YuanYuan Liu ZhongZhi Liu Hao Ma YuCai Mao QiYuan Nie JinHua Ning Hui Pan NingChun Qi Jie Ren XiChao Ruan ChangSong Shang Vivek Sharma Ze She Lakhwinder Singh Monoj Kumar Singh TianXi Sun ChangJian Tang WeiYou Tang Yang Tian GuangFu Wang Li Wang Qing Wang Yu Chen Wang YunXiang Wang Zhen Wang Henry Tsz-King Wong ShiYong Wu YuCheng Wu HaoYang Xing Yin Xu Tao Xue YuLu Yan Nan Yi ChunXu Yu HaiJun Yu JianFeng Yue Ming Zeng BingTao Zhang Lei Zhang FengShou Zhang ZhenYu Zhang KangKang Zhao MingGang Zhao JiFang Zhou ZuYing Zhou JingJun Zhu 2021Science China(Physics,Mechanics & Astronomy)2021,64,8:3
20Single-cell transcriptomes of peripheral blood cells indicate and elucidate severity of COVID-19显示文摘The blood and immune system of coronavirus disease 2019(COVID-19)infected patients are dysfunctional,and numerous studies have been conducted to resolve their characteristics and pathogenic mechanisms.Nevertheless,the variations of immune responses along with disease severity have not been comprehensively documented.Here,we profiled the single-cell transcriptomes of 96,313 peripheral blood mononuclear cells(PBMCs)derived from 12 COVID-19 patients(including four moderate,four severe and four critical cases)and three healthy donors.We showed that proliferative CD8 effector T cells with declined immune functions and cytotoxicity accumulated in the critical stage.By contrast,the quantity of natural killer(NK)cells was significantly reduced,while they exhibited enhanced immune activities.Notably,a gradually attenuated responseto COVID-19 along with disease severity was observed in monocytes,in terms of cellular composition,transcriptional discrepancy and transcription factor regulatory network.Furthermore,we identified immune cell-type dependent cytokine signatures distinguishing the severity of COVID-19 patients.In addition,cell interactions between CD8 effector T/NK cells and monocytes mediated by inflammatory cytokines were enhanced in moderate and severe stages,but weakened in critical cases.Collectively,our work uncovers the cellular and molecular players underlying the disordered and heterogeneous immune responses associated with COVID-19 severity,which could provide valuable insights for the treatment of critical COVID-19 patients.Xiaowei Xie Xuelian Cheng Gaoxiang Wang Biao Zhang Mengyao Liu Liting Chen Hui Cheng Sha Hao Jianfeng Zhou Ping Zhu Tao Cheng 2021Science China(Life Sciences)2021,64,10:3
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