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Effect of indirect non-thermal plasma on particle size distribution and composition of diesel engine particles

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Plasma Science and Technology 2017年第11期19卷 59-66页

作者： Linbo GU Yixi CAI Yunxi SHI jing WANG Xiaoyu pu jing TIAN Runlin FAN School of Automotive and Traffic Engineering Jiangsu University Zhenjiang 212013 People＇s Republic of China

To explore the effect of the gas source flow rate on the actual diesel exhaust particulate matter（PM）, a test bench for diesel engine exhaust purification was constructed, using indirect nonthermal plasma technology. The effects of different gas source flow rates on the quantity concentration, composition, and apparent activation energy of PM were investigated, using an engine exhaust particle sizer and a thermo-gravimetric analyzer. The results show that when the gas source flow rate was large, not only the maximum peak quantity concentrations of particles had a large drop, but also the peak quantity concentrations shifted to smaller particle sizes from 100 nm to 80 nm. When the gas source flow rate was 10L min^-1, the total quantity concentration greatly decreased where the removal rate of particles was 79.2%, and the variation of the different mode particle proportion was obvious. Non-thermal plasma（NTP） improved the oxidation ability of volatile matter as well as that of solid carbon. However, the NTP gas source rate had little effects on oxidation activity of volatile matter, while it strongly influenced the oxidation activity of solid carbon. Considering the quantity concentration and oxidation activity of particles, a gas source flow rate of 10L min^-1 was more appropriate for the purification of particles.

关键词： diesel engine particulate matter non-thermal plasma gas source flow rate

Updates on global epidemiology,risk and prognostic factors of gastric cancer

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World Journal of Gastroenterology 2023年第16期29卷 2452-2468页

作者： wen-Juan Yang He-Ping Zhao Yan Yu Ji-Han Wang Lei Guo Jun-Ye Liu Jie pu jing Lv Department of Clinical Laboratory Honghui HospitalXi'an Jiaotong UniversityXi'an 710054Shaanxi ProvinceChina Institute of Medical Research Northwestern Polytechnical UniversityXi'an 710072Shaanxi ProvinceChina Department of Spinal Surgery Honghui HospitalXi'an Jiaotong UniversityXi'an 710054Shaanxi ProvinceChina Department of Cardiology Shaanxi Provincial People’s HospitalXi'an 710068Shaanxi ProvinceChina

Gastric cancer(GC)is defined as the primary epithelial malignancy derived from the stomach,and it is a complicated and heterogeneous disease with multiple risk *** its overall declining trend of incidence and mortality in various countries over the past few decades,GC remains the fifth most common malignancy and the fourth leading cause of cancer-related death *** the global burden of GC has shown a significant downward trend,it remains severe in certain areas,such as *** ranks third in incidence and mortality among all cancer types in China,and it accounts for nearly 44.0%and 48.6%of new GC cases and GC-related deaths in the world,*** regional differences in GC incidence and mortality are obvious,and annual new cases and deaths are increasing rapidly in some developing ***,early preventive and screening strategies for GC are urgently *** clinical efficacies of conventional treatments for GC are limited,and the developing understanding of GC pathogenesis has increased the demand for new therapeutic regimens,including immune checkpoint inhibitors,cell immunotherapy and cancer *** present review describes the epidemiology of GC worldwide,especially in China,summarizes its risk and prognostic factors,and focuses on novel immunotherapies to develop therapeutic strategies for the management of GC patients.

关键词： Gastric cancer Epidemiology Risk factors Prognosis Treatment Immunotherapy

Research on Multi-robot Coordination Searching Ignition Sources Approach

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Journal of Harbin Institute of Technology(New Series) 2013年第2期20卷 50-54页

作者： Jun Li wen-Long Song pu-Cheng Zhou College Mechanical and Electrical Northeast Forestry University Dept. of Information Engineering Artillery Academy of PLA

For the purpose of study on forecasting forest fire behavior,a probability approach was presented to search ignition sources by multi-robot coordination. Firstly,the environment map is built based on Bayes rules. Then,the probability searching strategy based on the environment map was designed. Every grid of the searching area was assigned searching expectation value, and robots selected the grid with the highest expectation value as its searching target. The simulation results show the search time reduces greatly,which proves the feasibility and validity of the given algorithm under unknown fire condition.

关键词： fire-fighting robots Bayes rules multi-robot coordination

New Periodic Wave Solutions, Localized Excitations and Their Interaction Properties for （3＋1）-Dimensional Jimbo-Miwa Equation

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Communications in Theoretical Physics 2007年第4X期48卷 584-590页

作者： DOU Fu-Quan SUN Jian-An DUAN wen-Shan LU Ke-pu College of Physics and Electronics Engineering Northwest Normal University Lanzhou 730070 China

Based on the multi-linear variable separation approach, a class of exact, doubly periodic wave solutions for the （3＋1）-dimensional Jimbo-Miwa equation is analytically obtained by choosing the Jacobi elliptic functions and their combinations. Limit cases are considered and some new solitary structures （new dromions） are derived. The interaction properties of periodic waves are numerically studied and found to be inelastic. Under long wave limit, two sets of new solution structures （dromions） are given. The interaction properties of these solutions reveal that some of them are completely elastic and some are inelastic.

关键词： Jimbo-Miwa equation Jacobi elliptic function periodic solutions dromions

Effect of Precipitation on Hot Deformation Behavior and Processing Maps of Nickel-Base UNS N10276 Alloy

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Acta Metallurgica Sinica(English Letters) 2017年第11期30卷 1119-1134页

作者： En-Xiang pu wen-Jie Zheng Zhi-Gang Song Han Feng Han Dong School of Materials Science and Engineering Tsinghua University Beijing 100084 China Central Iron and Steel Research Institute Beijing 100081China

The hot deformation characteristics and processing maps of aged nickel-base UNS N10276 alloy were inves- tigated and compared with those of solution-treated UNS N10276 alloy at temperatures of 950-1250 ℃ and strain rates between 0.01 and 10 s-1. The dominant precipitated phase in the aged alloy was identified as topologically close-packed （TCP） # phase enriched in Mo and Ni. The precipitates present in the UNS N10276 alloy could significantly facilitate flow softening after peak stress at temperatures lower than 1150 ℃ and strain rates higher than 0.01 s-1. Processing maps at true strains of 0.1-0.9 were developed using the dynamic materials model and experimental flow stress data. Although aging treatment slightly shrank the suitable hot working window of this alloy, the aged alloy showed higher peak efficiencies of power dissipation and smaller unstable regions in comparison with solution-treated alloy. Furthermore, aging treatment eliminated the instability region of processing maps at true strains of 0.2-0.5. The precipitated phase promoted dynamic recrystallization （DRX） by the particle-stimulated nucleation （PSN） mechanism, which resulted in the larger fraction of DRX as well as finer and more uniform grain structure in the aged alloy specimens compared to the solution-treated alloy.

关键词： UNS N10276 alloy Precipitation Hot deformation Processing map

Single-centre study comparing standard apical dissection with a modified technique to facilitate vesico-urethral anastomosis during laparoscopic radical prostatectomy

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Asian Journal of Andrology 2011年第3期13卷 494-498,515页

作者： Xin Gao Xiao-Yong pu Jie Si-Tu wen-Tao Huang Department of Urology the Third Affiliated Hospital Sun Yat-Sen University Guangzhou 510630 China

A modified apical dissection of the prostate to improve the efficiency of vesico-urethral anastomosis （VUA） in laparoscopic radical prostatectomy （LRP） was reported. A total of 42 patients were randomly selected and enrolled in this study. A standard LRP was performed in 21 patients （group 1）, whereas a novel, modified apical dissection of the prostate in LRP was performed in another 21 patients （group 2）. Surgical data, total operative time, VUA time, extravasation rate, catheterisation time, occurrence of anastomotic strictures, and the early and late continence rates were analysed statistically. No differences in clinical or pathological characteristics were determined between the two groups. The total operative time, VUA time, blood loss and catheterisation time were lower in group 2, which received the novel, modified technique compared with group 1, which received the standard technique to dissect the apex of the prostate （P〈0.01 for each variable）. Regarding the extravasation rate and the occurrence of anastomotic strictures, no significant differences were found between the two groups （P〉0.0.05 for each）. After catheter removal, a statistically significant difference in the continence rates was present at 3 and 30 days post operation in the two groups （P〈0.01, respectively）. At 90 days post operation, the difference, although still present, was no longer statistically significant （P〉0.05）. The novel, modified apical dissection of the prostate facilitates the VUA and significantly improves the efficacy of the procedure and early restoration of continence.

关键词： continence laparoscopic technique radical prostatectomy vesico-urethral anastomosis

New treatment for amblyopia based on rules of synaptic plasticity:a randomized clinical trial

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Science China(Life Sciences) 2022年第3期65卷 451-465页

作者： Xin Huang Huika Xia Qi Zhang Colin Blakemore Yan Nan wenyao Wang Jie Gao Spencer S Ng jing wen Tiejun Huang Xiaoqing Li Mingliang pu Department of Anatomy School of Basic Medical SciencesPeking UniversityBeijing 100083China Key Laboratory on Machine Perception(Ministry of Education) Peking UniversityBeijing 100083China Department of Ophthalmology Hebei General HospitalShijiazhuang 050051China Department of Biomedical Sciences City University of Hong KongHong KongChina Department of Biology University of CaliforniaLos Angeles 90095-7246USA Department of Computer Science School of Electrical Engineering and Computer SciencesPeking UniversityBeijing 100191China National Engineering Laboratory for Video Technology Peking UniversityBeijing 100871China Department of Pediatric Ophthalmology Peking University First HospitalBeijing 100034China National Amblyopia and Strabismus Prevention and Treatment Center Beijing 100034China

Amblyopia resulting from early deprivation of vision or defocus in one eye reflects an imbalance of input from the eyes to the visual *** tested the hypothesis that asynchronous stimulation of the two eyes might induce synaptic plasticity and rebalance *** on normal adults showed that repetitive brief exposure of grating stimuli,with the onset of each stimulus delayed by 8.3 ms in one eye,results in a shift in perceptual eye *** studies(Clinical trial registration number:Chi CTR2100049130),using popular 3D movies with similar asynchrony between the two eyes(amblyopic eye stimulated first)to treat anisometropic amblyopia,established that just 10.5 h of conditioning overpular with children and is some 50 times more efficient than patching alone.

关键词： amblyopia visual cortex STDP synaptic plasticity SED

Studies　on　Ester　Exchange　Reaction

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Chemical Research in Chinese Universities 1998年第1期14卷 38-41页

作者： Zhang, jing-wen Zhang, Xiao-long Ma, Xiu-li Liu, Chang-cheng Mu, Ying Sun, Yun-xiu Jiang, wen-pu Huang, Hua-min Li, Yao-xian Peng, Wan-ru Jilin Univ Dept Chem Changchun 130023 Peoples R China Changchun Higher Coll Med Sci Dept Pharmacol Changchun 130023 Peoples R China

ＳｔｕｄｉｅｓｏｎＥｓｔｅｒＥｘｃｈａｎｇｅＲｅａｃｔｉｏｎＺＨＡＮＧＪｉｎｇ－ｗｅｎ，ＺＨＡＮＧＸｉａｏ－ｌｏｎｇ，ＭＡＸｉｕ－ｌｉ，ＬＩＵＣｈａｎｇ－ｃｈｅｎｇ，ＭＵＹｉｎｇ，ＳＵＮＹｕｎ－ｘｉｕ，ＪＩＡＮＧＷｅ... 详细信息

ＳｔｕｄｉｅｓｏｎＥｓｔｅｒＥｘｃｈａｎｇｅＲｅａｃｔｉｏｎＺＨＡＮＧＪｉｎｇ－ｗｅｎ，ＺＨＡＮＧＸｉａｏ－ｌｏｎｇ，ＭＡＸｉｕ－ｌｉ，ＬＩＵＣｈａｎｇ－ｃｈｅｎｇ，ＭＵＹｉｎｇ，ＳＵＮＹｕｎ－ｘｉｕ，ＪＩＡＮＧＷｅｎ－ｐｕ，ＨＵＡＮＧＨｕａ－ｍｉｎ...

关键词： Reaction Studies Exchange Ester

血液净化对重度中暑小型猪肠道组织闭锁小带蛋白-1和闭合蛋白表达的影响和意义

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中国血液净化 2025年第1期24卷 40-43页

作者：常林遇范文文张静倪军新乡医学院研究生学院新乡453000 中国人民解放军陆军第八十三集团军医院血液内分泌科新乡453000

目的观察血液净化对重度中暑小型猪肠道组织闭锁小带蛋白-1(zonula occludens-1,ZO-1)和闭合蛋白(Occludin)表达的影响。方法构建小型猪重度中暑(heatstroke,HS)模型,血液净化干预治疗前后进行肠道组织功能评价。按照随机数字表法分3组... 详细信息

目的观察血液净化对重度中暑小型猪肠道组织闭锁小带蛋白-1(zonula occludens-1,ZO-1)和闭合蛋白(Occludin)表达的影响。方法构建小型猪重度中暑(heatstroke,HS)模型,血液净化干预治疗前后进行肠道组织功能评价。按照随机数字表法分3组:对照组(空白对照)、模型组(重度中暑模型)、干预组(血液净化治疗),每组各6只。HE染色观察肠道组织的病理形态变化;Chiu’s评分法评估肠道组织的损伤程度;免疫组织化学法(immunohistochemistry,IHC)观察肠道组织ZO-1和Occludin的表达。结果相对于模型组,干预组小型猪肠道组织细胞充血、水肿程度减轻,肠道黏膜结构较为完整。对照组、模型组和干预组的肠道Chiu’s评分比较差异有统计学意义(F=44.245,P<0.001);对照组、模型组和干预组的肠道组织ZO-1(F=152.477,P<0.001)和Occludin(F=40.360,P<0.001)比较差异有统计学意义。结论血液净化对重度中暑小型猪肠道损伤具有保护作用,可能与上调ZO-1和Occludin的表达有关。

关键词：重度中暑肠道组织紧密连接蛋白血液净化