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291篇 您的检索式:作者名="Chao YUE"
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1Clinical application of a new device for minimally invasive circumcision显示文摘瞄准:与 phimosis 或过量包皮在不同年龄的男病人的治疗学习一台可处理的割礼设备的临床的效果。方法:在 5 和 95 年的年龄之间的 1200 个病人在在 2005 年 10 月和 2007 年 9 月之间的 2 年的时期用这个过程经历了割礼。这些盒子, 904 有过量包皮, 296 是 phimosis 的盒子。结果:在 96.33% 盒子中,切口愈合了,离开没有使好化妆结果留下疤痕并且生产的内部包皮的最小的数量。没有到系带的设备脱臼或损坏的事件。平均起作用的时间为 phimosis 是为过量包皮,和 3.5 min 的 2.5 min。在穿设备的 7 天期间,对中等浮肿温和与 phimosis 与过量包皮并且在那些的 2.58 % 发生在盒子的 10.08 % 。在系带的浮肿在 1.67% 病人被看见,并且仅仅, 0.67% 有切口的感染。86.25% 病人的一个总数由于阴茎勃起报导了疼痛。在设备的移动以后, 0.58% 案例有在切口附近的最小的流血,并且 2.42% 弯屈裂开。结论:新设备能与 phimosis 和过量包皮被用于病人的一个压到优势的多数。这种技术相对简单表现,并且经历了这个手术的病人有很少的复杂并发症。抗菌素没比用常规方法被割除的那些被要求,病人们报导了更少的疼痛。有这台设备的割礼要求最小的组织操作,并且比用常规技术的割礼更快、安全。Yi-Feng Peng Yue Cheng Guo-Yao Wang Suo-Qun Wang Chao Jia Ben-Hai Yang Ru Zhu Shu-Chuan Jian Qing-Wen Li Da-Wei Geng 2008Asian Journal of Andrology2008,10,3:105
2The Tea Tree Genome Provides Insights into Tea Flavor and Independent Evolution of Caffeine Biosynthesis显示文摘茶是世界有巨大的经济、药用、文化的重要性的最旧、很流行的包含咖啡因的饮料。这里,我们在场第一个高质量的核苷酸序列充满重复(80.9%) ,栽培的茶树山茶 sinensis 的 3.02-Gb 染色体。我们证明茶树的一种非常地大的染色体尺寸从一些 LTR retrotransposon 家庭的慢、稳定、长期的扩大被结果。除了一个最近的整个染色体的复制事件,基因的系特定的扩大把新陈代谢的生合成与 flavonoid 联系了被发现,它提高 catechin 生产,萜烯酶激活,和应力公差,为茶风味和改编的重要特征。我们相对可可子和咖啡表明一个独立人士和茶咖啡因合成小径的快速的进化。在 25 山茶种类之中的比较研究表明那更高的表情大多数 flavonoid- 和咖啡因铺平 -- 然而并非 theanine 相关的基因贡献 catechins 和咖啡因的增加的生产并且因此提高处理茶的适用性和茶质量。这些新奇调查结果为进一步的 metabolomic 和典型生合成小径的功能的 genomic 精炼铺平道路并且将帮助开发将最后满足并且吸引世界范围的更多的茶喝酒者的茶风味的一个更多样化的集合。En-Hua Xia Hai-Bin Zhang Jun Sheng Kui Li Qun-Jie Zhang Changhoon Kim Yun Zhang Yuan Liu Ting Zhu Wei Li Hui Huang Yan Tong Hong Nan Cong Shi Chao Shi Jian-Jun Jiang Shu-Yan Mao Jun-Ying Jiao Dan Zhang Yuan Zhao You-Jie Zhao Li-Ping Zhang Yun-Long Liu Ben-Ying Liu Yue Yu Sheng-Fu Shao De-Jiang Ni Evan E. Eichler Li-Zhi Gao 2017Molecular Plant2017,10,6:113
3Dynamic expression of apoptosis-related genes during development of laboratory hepatocellular carcinoma and its relation to apoptosis显示文摘AIM:To explore the expression of p53,bcl-2,bax,survivin and the cell apoptosis during the development of tree shrew hepatocellular carcinoma(HCC),the relationship between expression of these genes,its impact on HCC development,and its relation to cell apoptosis.METHONS:Tree shrew HCC was induced with aflatoxin B1(AFB1),and regular biopsy of liver tissues was carried out and the biopsy tissues were collected during cancer inducement.Liver biopsy tisue and HCC tissue were collected from 35pre-cancerous experimental animats at wk 30 and 60 and at the 30th_,60th_,and 90th-wk,Liver biopsy tissues were collected from 13 blank control animals at wk 30,60,and 90.Expression of p53,bcl-2,bax,and survivin at each stage was examined by immunohistochemistry method.Apoptotic cells were detected in situ by the terminal deoxynucleotidyl transferase-mediated nick end labeling(tunel)technique.RESULTS:The apoptosis rate of normal hepatic cells was extremely low,whereas it increased during the formation of HCC.Expression of the apoptosis-related genes p53,bd-2,bax,and suvivin during the formation of HCC presented an increasing tendency.Expression of p53 did not noticeably relate to that of bcl-2,bax,and survivin,whereas expression of bcl-2 and bax was closely related.In HCC,p53 did not present a distinct relation to cell apoptosis,whereas its high level expression was probably related to liver cell proliferation.Survivin negetively correlated apoptosis index,and its overexpression could inhibit cell apoptosis.CONCLUSION:Apoptosis-related genes p53,bcl-2,bax,and survivin are all related to the occurrence of HCC.The anti-apoptosis effect of bcl-2 is influenced by bax,and ratio bcl/bax reflects more correctly the extent of cell apoptosis.Xiao-Xian Duan Jing-Sheng Ou Yuan Li Jian-Jia Su Chao Ou Chun Yang Hui-Fen Yue Ke-Chen Ban 2005World Journal of Gastroenterology2005,11,30:38
4Global warming, human-induced carbon emissions, and their uncertainties显示文摘In recent decades, there have been a number of debates on climate warming and its driving forces. Based on an extensive literature review, we suggest that (1) climate warming occurs with great uncertainty in the magnitude of the temperature increase; (2) both human activities and natural forces contribute to climate change, but their relative contributions are difficult to quantify; and (3) the dominant role of the increase in the atmospheric concentration of greenhouse gases (including CO 2 ) in the global warming claimed by the Intergovernmental Panel on Climate Change (IPCC) is questioned by the scientific communities because of large uncertainties in the mechanisms of natural factors and anthropogenic activities and in the sources of the increased atmospheric CO 2 concentration. More efforts should be made in order to clarify these uncertainties.FANG JingYun ZHU JiangLing WANG ShaoPeng YUE Chao SHEN HaiHua 2011Science China Earth Sciences2011,54,10:37
5Clinical efficacy of three different minimally invasive procedures for far lateral lumbar disc herniation显示文摘LIU Tao ZHOU Yue WANG Jian CHU Tong-wei LI Chang-qing ZHANG Zheng-feng ZHANG Chao ZHENG Wen-jie 2012Chinese Medical Journal2012,,6:35
6Effects of propofol, dexmedetomidine, and midazolam on postoperative cognitive dysfunction in elderly patients: a randomized controlled preliminary trial显示文摘Background: Postoperative cognitive dysfunction (POCD) is a serious complication after surgery, especially in elderly patients. The anesthesia technique is a potentially modifiable risk factor for POCD. This study assessed the effects of dexmedetomidine, propofol or midazolam sedation on POCD in elderly patients who underwent hip or knee replacement under spinal anesthesia. Methods: The present study was a prospective randomized controlled preliminary trial. From July 2013 and December 2014, a total of 164 patients aged 65 years or older who underwent hip or knee arthroplasty at China-Japan Friendship Hospital and 41 non-surgical controls were included in this study. Patients were randomized in a 1:1:1 ratio to 3 sedative groups. All the patients received combined spinal-epidural anesthesia (CSEA) with midazolam, dexmedetomidine or propofol sedation. The sedative dose was adjusted to achieve light sedation (bispectral index[BIS] score between 70 and 85). All study participants and controls completed a battery of 5 neuropsychological tests before and 7 days after surgery. One year postoperatively, the patients and controls were interviewed over the telephone using the Montreal cognitive assessment 5-minute protocol. Results: In all, 60 of 164 patients (36.6%) were diagnosed with POCD 7 days postoperatively, POCD incidence in propofol group was significantly lower than that in dexmedetomidine and midazolam groups (18.2% vs. 40.0%, 51.9%, χ^2 6.342 and 13.603, P= 0.012 and < 0.001). When the patients were re-tested 1 year postoperatively, the incidence of POCD was not significantly different among the 3 groups (14.0%, 10.6% vs. 14.9%, χ^2 0.016 and 0.382, P= 0.899 and 0.536). Conclusion: Among dexmedetomidine, propofol and midazolam sedation in elderly patients, propofol sedation shows a significant advantage in term of short-term POCD incidence.Wei-Xia Li Ru-Yi Luo Chao Chert Xiang Li Jing-Sheng AO Yue Liu Yi-Qing Yin 2019Chinese Medical Journal2019,,4:28
7Evaluation of the 7^(th) edition of the TNM classification in patients with resected esophageal squamous cell carcinoma显示文摘AIM:To evaluate the prognostic factors and tumor stages of the 7th edition TNM classification for esophageal cancer.METHODS:In total,1033 patients with esophageal squamous cell carcinoma(ESCC)who underwent surgical resection with or without(neo)adjuvant therapy between January 2003 and June 2012 at the Thoracic Surgery DepartmentⅡof the Beijing Cancer Hospital,Beijing,China were included in this study.The following eligibility criteria were applied:(1)squamous cell carcinoma of the esophagus or gastroesophageal junction identified by histopathological examination;(2)treatment with esophagectomy plus lymphadenectomy with curative intent;and(3)complete pathologic reports and follow-up data.Patients who underwent non-curative(R1)resection and patients who died in hospital were excluded.Patients who received(neo)adjuvant therapy were also included in thisanalysis.All patients were restaged using the 7th edition of the Union for International Cancer Control and the American Joint Committee on Cancer TNM staging systems.Univariate and multivariate analyses were performed to identify the prognostic factors for survival.Survival curves were plotted using the Kaplan-Meier method,and the log-rank test was used to evaluate differences between the subgroups.RESULTS:Of the 1033 patients,273 patients received(neo)adjuvant therapy,and 760 patients were treated with surgery alone.The median follow-up time was 51.6mo(range:5-112 mo)and the overall 5-year survival rate was 36.4%.Gender,'p T'and'p N'descriptors,(neo)adjuvant therapy,and the 7th edition TNM stage grouping were independent prognostic factors in the univariate and multivariate analyses.However,neither histologic grade nor cancer location were independent prognostic factors in the univariate and multivariate analyses.The 5-year stage-based survival rates were as follows:ⅠA,84.9%;ⅠB,70.9%;ⅡA,56.2%;ⅡB,43.3%;ⅢA,37.9%;ⅢB,23.3%;ⅢC,12.9%andⅣ,3.4%.There were significant differences between each adjacent staging classification.Moreover,there were significant differences between each adjacent p N and p M subgroup.According to the p T descriptor,there were significant differences between each adjacent subgroup except between p T3 and p T4(P=0.405).However,there was no significant difference between each adjacent histologic grade subgroup and between each adjacent cancer location subgroup.CONCLUSION:The 7th edition is considered to be valid for patients with resected ESCC.However,the histologic grade and cancer location were not prognostic factors for ESCC.Jia Wang Nan Wu Qing-Feng Zheng Shi Yan Chao Lv Shao-Lei Li Yue Yang 2014World Journal of Gastroenterology2014,20,48:23
8Assessment on heavy metals pollution of agricultural soil in Guanzhong District显示文摘The monitored soil samples were collected from Heihui irrigated area, Jiaokou irrigated area, Qianhe river valley and Jinghe river valley (hereafter Heihui, Jiaokou, Qianhe and Jinghe for short respectively) of Guanzhong District. According to the Environment Quality Standard for Soil (GB15618-1995II), we evaluated the pollution status of heavy metals (Cd, As, Cr and Pb) that could seriously endanger soil environment and human health by using single-factor index and synthetic pollution index methods. The results indicate that the synthetic pollution indices P of soil heavy metals are less than 0.7 in Heihui, Jiaokou, Qianhe and Jinghe of Guanzhong, the single-factor indices Pi of soil heavy metals of most soil samples are less than 0.7, so the soil environmental quality is in a good condition in Guanzhong on the whole; the enrichment degree of soil heavy metals is in the order of Heihui, Jinghe, Qianhe and Jiaokou; the contaminated degree of soil heavy metals has the feature of Cd > As > Cr > Pb; heavy metals contents in the cultivated horizon soil are generally higher than those in its underlayer soil, heavy metals contents of soil have the characteristic of enriching towards the cultivated horizon; Cd exceeds standard in the soil samples HS07a, b and HS08a, b at the Yangtao orchard in Heihui and in the soil sample QHS01a at the suburban vegetable plot in Qianhe, which was mainly caused by the long-term irrational use of chemical fertilizer and pesticide.ZHENG Guozhang YUE Leping LI Zhipei CHEN Chao 2006Journal of Geographical Sciences2006,16,1:21
9Antioxidant properties of magnesium lithospermate B contribute to the cardioprotection against myocardial ischemia/reperfusion injury in vivo and in vitro显示文摘OBJECTIVE: To determine the cardioprotective effect of magnesium lithospermate B (MLB) on myocardial ischemia/reperfusion (MI/R) injury and to investigate the antioxidant potential in vivo and in vitro. METHODS: MI/R injury was induced by the occlusion of left anterior descending coronary artery for 30 min followed by reperfusion for 3 h in rats. After reperfusion, hearts were harvested to assess infarct size, histopathological damages, the levels of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), reduced glutathione (GSH) and malondialdehyde (MDA). Blood samples were col- lected to determine serum levels of creatine kinase-MB (CK-MB), cardiac troponin (cTnI) and lactate dehydrogenase (LDH). Furthermore, simulatedischemia/reperfusion (SI/R) injury in vitro was established by oxygen and glucose deprivation (OGD) for 2 h followed by 24-hour recovery period in cardiomyocytes. The activity of LDH in the cultured supernatant and the levels of intracellular reactive oxygen species (ROS), SOD and MDA in cardiomyocytes were also measured. Finally, cardiomyocytes apoptosis was determined with flow cytometry. RESULTS: MLB significantly limited infarct size, ameliorated histopathological damages and prevented leakage of CK-MB, cTnI and LDH. Additionally, SOD, CAT, GPx and GSH activities were notably increased by MLB, along with the MDA content decreased as compared with the model group in rats. In vitro study, MLB also decreased LDH activity in the cultured supernatant, increased SOD activity in cardiomyocytes, reduced intracellular ROS and MDA levels, and significantly suppressed cardiomyocytes apoptosis. CONCLUSION: MLB possessed remarkably cardioprotective effects on MI/R injury in vivo and in vitro. The protection of MLB may contribute to its antioxidant properties.Wei Quan Ying Yin Miaomiao Xi Dan Zhou Yanrong Zhu Yue Guan Chao Guo Yanhua Wang Jialin Duan Aidong Wen 2013Journal of Traditional Chinese Medicine2013,33,1:21
10Surgical outcome and clinical follow-up in patients with symptomatic myocardial bridging显示文摘背景与左前面的下降冠的动脉(男孩) 的收缩压缩的心肌的衔接可以与心肌的 ischaemia 被联系。在有为征兆的心肌的衔接的外科的治疗的病人的临床的结果仍然保持未经决定。这研究从 1997 ~ 2006 为征兆的心肌的 bridging.Methods 估计了外科的治疗的中间术语、长期的结果, 37 463 个病人在 Fuwai 心血管的医院里收到了选择冠的 angiography,中国北京。这些, 484 个病人有心肌的衔接的 angiographic 诊断。484 个病人, 35 为与重要收缩动脉的压缩的心肌的衔接的治疗经历了外科。在外科的治疗病人之中, 24 与其它一起介绍了心脏的混乱,并且留下有孤立的心肌的衔接的 11 个征兆的病人在心肌的衔接的 angiographic 流行是的后续 study.Results 被包括 1.3% 在这研究。11 个病人的冠的 angiographies 揭示了在引起收缩压缩的男孩的中间的片断的心肌的衔接 75%( 从 75% ~ 90%) 。病人的吝啬的年龄是 48.4 年。外科的肌切开术在 3 个病人和冠的动脉被执行在 8 个病人绕过 grafting (CABG ) 。八个病人与一条离开泵途径被给动手术并且 3 与一心肺在中部的 sternotomy 以后绕过技术。因为正确的室的穿孔,到在泵上 CABG 外科的变换在 1 个病人是必要的。左内部乳房的动脉与 CABG.The 尖锐临床的成功在所有病人被使用率是关于心肌的梗塞,死亡或另外的专业的缺席的 100% 在里面医院复杂并发症。所有病人被跟随在上面临床上。中部的后续是 35.3 个月(范围:6 ~ 120 个月) 。九个病人从症状是自由的,他们之一继续拿贝它 blockers。留下有肌切开术的 2 个病人有不正常的胸疼痛。一个人再收到了冠的 angiography,没有狭窄在操作以后被发现二年;当测试的锻练在另外的病人被执行并且没揭示心肌的 ischaemia 的证据时。任何一个都没在心肌的衔接是的 follow-up.Conclusions 期间病人支撑心肌的梗塞或另外的主要不利心脏的事件(死亡或容器 revascularization ) 发现的相对普通的 angiographic。外科的肌切开术或 CABG 应该被限制到对口头的药倔强的病人。心肌的 ischaemia 的外科的地势由于 intramyocardial 的收缩压缩,冠的动脉能与低起作用的风险和优秀中间术语、长期的结果被完成。HUANG Xiao-hong WANG Shui-yun XU Jian-ping SONG Yun-hu SUN Han-song TANG Yue DONG Chao YANG Yue-jin HU Sheng-shou 2007Chinese Medical Journal2007,,18:17
11The Chromosome-Based Rubber Tree Genome Provides New Insights into Spurge Genome Evolution and Rubber Biosynthesis显示文摘The rubber tree,Hevea brasiliensis,produces natural rubber that serves as an essential industrial raw material.Here,we present a high-quality reference genome for a rubber tree cultivar GT1 using single-molecule real-time sequencing(SMRT)and Hi-C technologies to anchor the~1.47-Gb genome assembly into 18 pseudochromosomes.The chromosome-based genome analysis enabled us to establish a model of spurge chromosome evolution,since the common paleopolyploid event occurred before the split of Hevea and Manihot.We show recent and rapid bursts of the three Hevea-specific LTR-retrotransposon families during the last 10 million years,leading to the massive expansion by~65.88%(~970 Mbp)of the whole rubber tree genome since the divergence from Manihot.We identify large-scale expansion of genes associated with whole rubber biosynthesis processes,such as basal metabolic processes,ethylene biosynthesis,and the activation of polysaccharide and glycoprotein lectin,which are important properties for latex production.A map of genomic variation between the cultivated and wild rubber trees was obtained,which contains~15.7 million high-quality single-nucleotide polymorphisms.We identified hundreds of candidate domestication genes with drastically lowered genomic diversity in the cultivated but not wild rubber trees despite a relatively short domestication history of rubber tree,some of which are involved in rubber biosynthesis.This genome assembly represents key resources for future rubber tree research and breeding,providing novel targets for improving plant biotic and abiotic tolerance and rubber production.Jin Liu Cong Shi Cheng-Cheng Shi Wei Li Qun-Jie Zhang Yun Zhang Kui Li Hui-Fang Lu Chao Shi Si-Tao Zhu Zai-Yun Xiao Hong Nan Yao Yue Xun-Ge Zhu Yu Wu Xiao-Ning Hong Guang-Yi Fan Yan Tong Dan Zhang Chang-Li Mao Yun-Long Liu Shi-Jie Hao Wei-Qing Liu Mei-Qi Lv Hai-Bin Zhang Yuan Liu Ge-Ran Hu-tang Jin-Peng Wang Jia-Hao Wang Ying-Huai Sun Shu-Bang Ni Wen-Bin Chen Xing-Cai Zhang Yuan-Nian Jiao Evan E.Eichler Guo-Hua Li Xin Liu Li-Zhi Gao 2020Molecular Plant2020,13,2:15
12Frost heave control of fine round gravel fillings in deep seasonal frozen regions显示文摘Fine round gravel soil is widely employed in the subgrade of high speed railways in cold regions to prevent frost heaving and thawing. The lower the fines content in fine round gravel soil, the smaller the quantities of frost heaving and thawing, but compaction difficulty increases. This study is to obtain the optimum fines content and limited frost heaving and thawing. The fine round gravel soil filling (FRGSF) used in the Harbin-Qiqihaer Passenger Dedicated Line is taken as the study object. Influence of fines content on optimum water content, maximum dry density and frost heaving properties of FRGSF were studied by means of compaction and frost heaving tests. Results show that the maximum dry density of the FRGSF increases first and then decreases with an increase of fines content, namely there is an optimum fines content for easy compaction. The method of surface-vibratory instrument is fit for coarse-grained soils, and wet state of coarse-grained soil is in favor of compaction. Considering the relationship of fines content with maximum dry density and the frost heaving ratio of FRGSF, the fines content should be limited to within the range of 9%-10%, so that the frost heaving ratio is less than 1%, and the FRGSF is easily compacted. Water supply is proved to be an important factor influencing the amount of frost heaving of FRGSF. We also conclude that in the field, it is imperative to control waterproofing and drainage measures.ZuRun Yue TianLiang Wang Chao Ma TieCheng Sun 2013Research in Cold and Arid Regions2013,5,4:12
13State-of-the-Art Analysis and Perspectives for Peer-to-Peer Energy Trading显示文摘As a promising solution to address the“energy trilemma”confronting human society,peer-to-peer(P2P)energy trading has emerged and rapidly developed in recent years.When carrying out P2P energy trading,customers with distributed energy resources(DERs)are able to directly trade and share energy with each other.This paper summarizes and analyzes the global development of P2P energy trading based on a comprehensive review of related academic papers,research projects,and industrial practice.Key aspects in P2P energy trading are identified and discussed,including market design,trading platforms,physical infrastructure and information and communication technology(ICT)infrastructure,social science perspectives,and policy.For each key aspect,existing research and practice are critically reviewed and insights for future development are presented.Comprehensive concluding remarks are provided at the end,summarizing the major findings and perspectives of this paper.P2P energy trading is a growing field with great potential and opportunities for both academia and industry across the world.Yue Zhou Jianzhong Wu Chao Long Wenlong Ming 2020Engineering2020,6,7:12
14Soybean AP1 homologs control flowering time and plant height显示文摘Flowering time and plant height are key agronomic traits that directly affect soybean(Glycine max)yield.APETALA1(AP1)functions as a class A gene in the ABCE model for floral organ development,helping to specify carpel,stamen,petal,and sepal identities.There are four AP1 homologs in soybean,all of which are mainly expressed in the shoot apex.Here,we used clustered regularly interspaced short palindromic repeats(CRISPR)–CRISPR-associated protein 9 technology to generate a homozygous quadruple mutant,gmap1,with loss-of-function mutations in all four GmAP1 genes.Under short-day(SD)conditions,the gmap1 quadruple mutant exhibited delayed flowering,changes in flower morphology,and increased node number and internode length,resulting in plants that were taller than the wild type.Conversely,overexpression of GmAP1a resulted in early flowering and reduced plant height compared to the wild type under SD conditions.The gmap1 mutant and the overexpression lines also exhibited altered expression of several genes related to flowering and gibberellic acid metabolism,thereby providing insight into the role of GmAP1 in the regulatory networks controlling flowering time and plant height in soybean.Increased node number is the trait with the most promise for enhancing soybean pod number and grain yield.Therefore,the mutant alleles of the four AP1 homologs described here will be invaluable for molecular breeding of improved soybean yield.Liyu Chen Haiyang Nan Lingping Kong Lin Yue Hui Yang Qingsong Zhao Chao Fang Haiyang Li Qun Cheng Sijia Lu Fanjiang Kong Baohui Liu Lidong Dong 2020Journal of Integrative Plant Biology2020,62,12:9
15Scenario analysis on the global carbon emissions reduction goal proposed in the declaration of the 2009 G8 Summit显示文摘A goal of a 50% reduction in global greenhouse gases emissions by 2050, with an 80% reduction by developed countries (hereafter referred to as the G8 Goal), was proposed at the G8 Summit held in L’Aquila, Italy, in July 2009. Here we analyze the scientific and political implications of the G8 Goal and its equity and feasibility by examining four greenhouse gas emissions scenarios. Our results show that (1) the goal to keep atmospheric CO2 concentration of <450 ppmv, stated by G8 nations, can only be achieved under the scenario of a steady, linear emissions reduction by all countries and simultaneously meeting the G8 Goal during the period 2005-2050; (2) under the G8 Goal, the carbon emissions quota for developing countries would not meet their carbon emission demands even if very strict reduction regimes are followed, with a gap of up to >1/3 of emissions demand in the next 45 years; and (3) under the G8 Goal, the cumulative per capita emissions during the period of 2006-2050 for developed and developing countries will be 81 t C and 40-47 t C, respectively, with the former doubling that of the latter, implying that the historical disparity of carbon emissions between developed and developing countries would be widened. Historically, the cumulative per capita emissions from developed countries are 12 times of those from developing countries. We therefore conclude that (1) the G8 Goal seeks to impose binding reduction targets on developing countries that will impede their industrialization process and cause conflicts among developing countries in the allocation of carbon emission rights; (2) the G8 Goal will not only widen the existing disparities of historical carbon emissions between developed and developing countries, but also generate new inequalities in the rights of carbon emissions; and (3) the 450 ppmv threshold of atmospheric CO2 concentration control, which is the basis for the G8 Goal, is impractical and impossible, and should not be accepted as the foundation for international climate negotiation on carbon emission reduction. In summary, the G8 Goal is clearly against the principle of 'common but differentiated responsibilities' and thus is unacceptable for developing countries.FANG JingYun WANG ShaoPeng YUE Chao ZHU JiangLing GUO ZhaoDi HE CanFei TANG ZhiYao 2009Science China Earth Sciences2009,52,11:8
16Autonomous navigation for a wolfberry picking robot using visual cues and fuzzy control显示文摘Lycium barbarum commonly known as wolfberry or Goji is considered an important ingredient in Japanese,Korean,Vietnamese,and Chinese food and medicine.It is cultivated extensively in these countries and is usually harvested manually,which is laborintensive and tedious task.To improve the efficiency of harvesting and reduce manual labor,automatic harvesting technology has been investigated by many researchers in recent years.In this paper,an autonomous navigation algorithm using visual cues and fuzzy control is proposed for Wolfberry orchards.At first,we propose a new weightage(2.4B-0.9G-R)to convert a color image into a grayscale image for better identification of the trunk of Lycium barbarum,the minimum positive circumscribed rectangle is used to describe the contours.Then,using the contour points the least square method is used to fit the navigation line and a region of interest(ROI)is computed that improves the realtime accuracy of the system.Finally,a set of fuzzy controllers,for pneumatic steering system,is designed to achieve real-time autonomous navigation in wolfberry orchard.Static image experiments show that the average accuracy rate of the algorithm is above 90%,and the average time consumption is approximately 162 ms,with good robustness and real-time performance.The experimental results show that when the speed is 1 km/h,the maximum lateral deviation is less than 6.2 cm and the average lateral deviation is 2.9 cm,which meets the requirements of automatic picking of wolfberry picking robot in real-world environments.Yue Ma Wenqiang Zhang Waqar S.Qureshi Chao Gao Chunlong Zhang Wei Li 2021Information Processing in Agriculture2021,8,1:7
17Response of the magnetic field and plasmas at the geosynchronous orbit to interplanetary shock显示文摘Interplanetary shock can greatly disturb the Earth's magnetosphere and ionosphere, causing the temporal and spatial changes of the magnetic field and plasmas at the geosynchronous orbit. In this paper, we use the magnetic field data of GOES satellites from 1997 to 2007 and the plasma data of MPA on the LANL satellites from 1997 to 2004 to study the properties of magnetic field and plasma (0.03―45 keV) at the geosynchronous orbit (6.6 RE) within 3 hours before and after the arrival of shock front at the geosynchronous orbit through both case study and superposed epoch analysis. It is found that following the arrival of shock front at the geosynchronous orbit, the magnetic field magnitude, as well as GSM BZ component increases significantly on the dayside (8―16 LT), while the BY component has almost no change before and after shock impacts. In response to the interplanetary shock, the proton becomes much denser with a peak number density of 1.2 cm-3, compared to the typical number density of 0.7 cm-3. The proton temperature increases sharply, predominantly on the dusk and night side. The electron, density increases dramatically on the night side with a peak number density of 2.0 cm-3. The inferred ionospheric O+ density after the interplanetary shock impact reaches the maximum value of 1.2 cm-3 on the dusk side and exhibits the clear dawn-dusk asymmetry. The peak of the anisotropy of proton's temperature is located at the noon sector, and the anisotropy decreases towards the dawn and dusk side. The minimum of temperature anisotropy is on the night side. It is suggested that the electromagnetic ion cyclotron (EMIC) wave and whistler wave can be stimulated by the proton and electron temperature anisotropy respectively. The computed electromagnetic ion cyclotron wave (EMIC) intense on the day side (8―16 LT) with a frequency value of 0.8 Hz, and the wave intensity decreases towards the dawn and dusk side, the minimum value can be found on the night side. The computed electron whistler wave locates on the day side (8―16 LT) with a value of 2 kHz.YUE Chao ZONG QiuGangt WANG YongFu 2009Chinese Science Bulletin2009,54,22:7
18New innovations in pavement materials and engineering:A review on pavement engineering research 2021显示文摘Sustainable and resilient pavement infrastructure is critical for current economic and environmental challenges.In the past 10 years,the pavement infrastructure strongly supports the rapid development of the global social economy.New theories,new methods,new technologies and new materials related to pavement engineering are emerging.Deterioration of pavement infrastructure is a typical multi-physics problem.Because of actual coupled behaviors of traffic and environmental conditions,predictions of pavement service life become more and more complicated and require a deep knowledge of pavement material analysis.In order to summarize the current and determine the future research of pavement engineering,Journal of Traffic and Transportation Engineering(English Edition)has launched a review paper on the topic of'New innovations in pavement materials and engineering:A review on pavement engineering research 2021'.Based on the joint-effort of 43 scholars from 24 well-known universities in highway engineering,this review paper systematically analyzes the research status and future development direction of 5 major fields of pavement engineering in the world.The content includes asphalt binder performance and modeling,mixture performance and modeling of pavement materials,multi-scale mechanics,green and sustainable pavement,and intelligent pavement.Overall,this review paper is able to provide references and insights for researchers and engineers in the field of pavement engineering.JTTE Editorial Office Jiaqi Chen Hancheng Dan Yongjie Ding Yangming Gao Meng Guo Shuaicheng Guo Bingye Han Bin Hong Yue Hou Chichun Hu Jing Hu Ju Huyan Jiwang Jiang Wei Jiang Cheng Li Pengfei Liu Yu Liu Zhuangzhuang Liu Guoyang Lu Jian Ouyang Xin Qu Dongya Ren Chao Wang Chaohui Wang Dawei Wang Di Wang Hainian Wang Haopeng Wang Yue Xiao Chao Xing Huining Xu Yu Yan Xu Yang Lingyun You Zhanping You Bin Yu Huayang Yu Huanan Yu Henglong Zhang Jizhe Zhang Changhong Zhou Changjun Zhou Xingyi Zhu 2021Journal of Traffic and Transportation Engineering(English Edition)2021,8,6:7
19A Review of Technical Advances,Barriers,and Solutions in the Power to Hydrogen(P2H)Roadmap显示文摘Power to hydrogen(P2H)provides a promising solution to the geographic mismatch between sources of renewable energy and the market,due to its technological maturity,flexibility,and the availability of technical and economic data from a range of active demonstration projects.In this review,we aim to provide an overview of the status of P2H,analyze its technical barriers and solutions,and propose potential opportunities for future research and industrial demonstrations.We specifically focus on the transport of hydrogen via natural gas pipeline networks and end-user purification.Strong evidence shows that an addition of about 10%hydrogen into natural gas pipelines has negligible effects on the pipelines and utilization appliances,and may therefore extend the asset value of the pipelines after natural gas is depleted.To obtain pure hydrogen from hydrogen-enriched natural gas(HENG)mixtures,end-user separation is inevitable,and can be achieved through membranes,adsorption,and other promising separation technologies.However,novel materials with high selectivity and capacity will be the key to the development of industrial processes,and an integrated membrane-adsorption process may be considered in order to produce high-purity hydrogen from HENG.It is also worth investigating the feasibility of electrochemical separation(hydrogen pumping)at a large scale and its energy analysis.Cryogenics may only be feasible when liquefied natural gas(LNG)is one of the major products.A range of other technological and operational barriers and opportunities,such as water availability,byproduct(oxygen)utilization,and environmental impacts,are also discussed.This review will advance readers’understanding of P2H and foster the development of the hydrogen economy.Guoping Hu Chao Chen Hiep Thuan Lu Yue Wu Congmin Liu Lefu Tao Yuhan Men Guangli He Kevin Gang Li 2020Engineering2020,6,12:7
20Multiple constraints QoS multicast routing optimization algorithm in MANET based on GA显示文摘Usually multiple quality of service (QoS) guarantees are required in most multicast applications. This paper presents a multiple con-straints algorithm for multicast traffic engineering in mobile ad hoc networks (MANET). The proposed algorithm is a new version of multiple constraints QoS multicast routing optimization algorithm in MANET based on genetic algorithm (MQMGA). The proposed MQMGA can optimize the maximum link utilization, the cost of the multicast tree, the selection of the long-life path, the average delay and the maximum end-to-end delay. Experimental result shows that the approach is efficient, has promising performance in multicast traffic engineering and for evaluating the route stability in dynamic mobile networks.Baolin Sun Shangchao Pi Chao Gui Yue Zeng Bing Yan Wenxiang Wang Qianqing Qin 2008Progress in Natural Science:Materials International2008,18,3:6
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