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| 1 | 2018 Chinese Pediatric Cardiology Society(CPCS) guideline for diagnosis and treatment of syncope in children and adolescents显示文摘Syncope belongs to the transient loss of consciousness(TLOC), characterized by a rapid onset, short duration, and spontaneous complete recovery. It is common in children and adolescents, accounting for 1% to 2% of emergency department visits.Recurrent syncope can seriously affect children's physical and mental health, learning ability and quality of life and sometimes cardiac syncope even poses a risk of sudden death. The present guideline for the diagnosis and treatment of syncope in children and adolescents was developed for guiding a better clinical management of pediatric syncope. Based on the globally recent development and the evidence-based data in China, 2018 Chinese Pediatric Cardiology Society(CPCS) guideline for diagnosis and treatment of syncope in children and adolescents was jointly prepared by the Pediatric Cardiology Society, Chinese Pediatric Society, Chinese Medical Association(CMA)/Committee on Pediatric Syncope, Pediatricians Branch, Chinese Medical Doctor Association(CMDA)/Committee on Pediatric Cardiology, Chinese College of Cardiovascular Physicians, Chinese Medical Doctor Association(CMDA)/Pediatric Cardiology Society, Beijing Pediatric Society, Beijing Medical Association(BMA). The present guideline includes the underlying diseases of syncope in children and adolescents, the diagnostic procedures, methodology and clinical significance of standing test and headup tilt test, the clinical diagnosis vasovagal syncope, postural orthostatic tachycardia syndrome, orthostatic hypotension and orthostatic hypertension, and the treatment of syncope as well as follow-up. | Cheng Wang Yaqi Li Ying Liao Hong Tian Min Huang Xiangyu Dong Lin Shi Jinghui Sun Hongfang Jin Junbao Du Jindou An Jie Chen Mingwu Chen Qi Chen Sun Chen Yonghong Chen Zhi Chen Adolphus Kai-tung Chau Junbao Du Zhongdong Du Junkai Duan Hongyu Duan Xiangyu Dong Lin Feng Lijun Fu Fangqi Gong Yonghao Gui Ling Han Zhenhui Han Bing He Zhixu He Xiufen Hu Yimin Hua Guoying Huang Min Huang Ping Huang Yujuan Huang Hongfang Jin Mei Jin Bo Li Fen Li Tao Li Xiaohui Li Xiaoyan Liu Yan Li Haitao Lv Tiewei Lv Zipu Li Luyi Ma Silin Pan Yusheng Pang Hua Peng Yuming Qin Jie Shen Lin Shi Kun Sun Jinghui Sun Hong Tian Jie Tian Cheng Wang Hong Wang Lei Wang Jinju Wang Wendi Wang Yuli Wang Rongzhou Wu Tianhe Xia Yanyan Xiao Chunhong Xie Yanlin Xing Zhenyu Xiong Baoyuan Xu Yi Xu Hui Yan Shiwei Yang Qijian Yi Xia Yu Xianyi Yu Yue Yuan Hongyan Zhang Huili Zhang Li Zhang Qingyou Zhang Xi Zhang Yanmin Zhang Zhiwei Zhang Cuifen Zhao Bin Zhou Hua Zhu | 2018 | Science Bulletin2018,63,23: | 54 |
| 2 | Contrasting trends of PM2.5 and surface-ozone concentrations in China from 2013 to 2017显示文摘Although much attention has been paid to investigating and controlling air pollution in China,the trends of air-pollutant concentrations on a national scale have remained unclear.Here,we quantitatively investigated the variation of air pollutants in China using long-term comprehensive data sets from 2013 to 2017,during which Chinese government made major efforts to reduce anthropogenic emission in polluted regions.Our results show a significant decreasing trend in the PM2.5 concentration in heavily polluted regions of eastern China,with an annual decrease of〜7%compared with measurements in 2013.The measured decreased concentrations of SO2>NO2 and CO(a proxy for anthropogenic volatile organic compounds)could explain a large fraction of the decreased PM2.5 concentrations in different regions.As a consequence;the heavily polluted days decreased significantly in corresponding regions.Concentrations of organic aerosol;nitrate;sulfate,ammonium and chloride measured in urban Beijing revealed a remarkable reduction from 2013 to 2017;connecting the decreases in aerosol precursors with corresponding chemical components closely.However;surface-ozone concentrations showed increasing trends in most urban stations from 2013 to 2017;which indicates stronger photochemical pollution.The boundary-layer height in capital c让ies of eastern China showed no significant trends over the Beijing-Tianjin-Hebei,Yangtze River Delta and Pearl River Delta regions from 2013 to 2017;which confirmed the reduction in anthropogenic emissions.Our results demonstrated that the Chinese government was successful in the reduction of particulate matter in urban areas from 2013 to 2017,although the ozone concentration has increased significantly;suggesting a more complex mechanism of improving Chinese air quality in the future. | Yonghong Wang Wenkang Gao Shuai Wang Tao Song Zhengyu Gong Dongsheng Ji Lili Wang Zirui Liu Guiqian Tang Yanfeng Huo Shili Tian Jiayun Li Mingge Li Yuan Yang Biwu Chu Tuukka Petaja Veli-Matti Kerminen Hong He Jiming Hao Markku Kulmala Yuesi Wang Yuanhang Zhang | 2020 | National Science Review2020,7,8: | 51 |
| 3 | Design and engineering implementation of non-supplementary fired compressed air energy storage system: TICC-500显示文摘The integration and accommodation of the wind and solar energy pose great challenges on today’s power system operation due to the intermittent nature and volatility of the wind and solar resources.High efficient large-scale electrical energy storage is one of the most effective and economical solutions to those problems.After the comprehensive review of the existing storage technologies,this paper proposes an overall design scheme for the Non-supplementary Fired Compressed Air Energy Storage(NFCAES)system,including system design,modeling and efficiency assessment,as well as protection and control.Especially,the design principles of the multistage regenerative,i.e.heat recovery system which is used to fully recycle and utilize the waste heat from compression are provided,so as the overall system efficiency evaluation method.This paper theoretically ascertains the storage decoupling rules in the potential and internal energy of molecular compressed air and reveals the conversion mechanism of gas,heat,power,electricity and other forms of energy.On this basis,a 500-k W physical simulation system of CAES system(TICC-500,Tsinghua-IPCCAS-CEPRI-CAES)is built,which passed a system-wide 420-k W load power generation test with less pollution and zero carbon emissions.Besides,the multi-form energy conversion of multi-stage regenerative CAES and storage efficiency is verified,especially its incomparable superiority in solving the uncertainty problem in wind and solar power generation.Finally,the propaganda and application scenario of the CAES system in China is introduced. | MEI Sheng Wei WANG Jun Jie TIAN Fang CHEN Lai Jun XUE Xiao Dai LU Qiang ZHOU Yuan ZHOU Xiao Xin | 2015 | Science China(Technological Sciences)2015,58,4: | 37 |
| 4 | Effects of icariin on cGMP-specific PDE5 and cAMP-specific PDE4 activities显示文摘Aim:To clarify the mechanism of the therapeutic action of icariin on erectlile dysfunction(ED).Methods:PDE5 was isolated from the human platelet and PDE4 form the rat liver tissue using the FPLC system (Pharmacia,Milton Keynes,UK)and the Mono Q column.The inhibitory effects of icariin on PDE5 and PDE4 activities were investigated by the two-step radioisotope procedure with [^3H]-c GMP/[^3H]-cAMP.Papaverine served as the control drug.Results:Icariin and papaverine showed dose-dependent inhibitory effects on PDE5 and PDE4 activities.The IC50 of Icariin and papaverine on PDE5 were 0.432μ mol/L and 0.680μmol/L,respectively and those on PDE4,73.50μmol/L and 3.07μmol/L,respectively.The potencies of selectivity of icariin and papaverine on PDE5(PDE4/PDE5 of IC50)were 167.67 times and 4.54 times,respectively.Conclusion:Icariin is a cGMP-specific PDE5 inhibitor that may be developed into an oral effective agent for the treatment of ED. | ZC Xin EK Kim CS Lin WJ Liu L Tian YM Yuan J Fu | 2003 | Asian Journal of Andrology2003,5,1: | 38 |
| 5 | Improved survival of porcine acute liver failure by a bioartificial liver device implanted with induced human functional hepatocytes显示文摘 | Xiao-Lei Shi Yimeng Gao YupengYan HuchengMa Lulu Sun Pengyu Huang Xuan Ni Ludi Zhang Xin Zhao Haozhen Ren Dan Hu Yan Zhou Feng Tian Yuan Ji Xin Cheng Guoyu Pan Yi-Tao Ding LijianHui | 2016 | Cell Research2016,26,2: | 31 |
| 6 | Chimeric antigen receptor (CAR)-transduced natura killer cells in tumor immunotherapy显示文摘生来的杀手(NK ) 房间是在基于房间的癌症免疫疗法的潜在的受动器房间,特别地在 hematological 恶意的控制。妄想的抗原受体(汽车) 是由熔化到一个细胞内部的发信号领域的一个细胞外的抗原识别领域组成的人工地修改的熔化蛋白质。遗传上与一辆汽车修改的 T 房间在 hematological 癌症的治疗表明了显著成功。把房间比作 T, CAR-transduced NK 房间(CAR-NK ) 展览几优点例如在临床的使用的安全,他们由认出癌症房间的机制,和他们在临床的样品的丰富。人的主要 NK 房间和 NK-92 房间线是成功地在现出症状之前的潜、临床的试用对 hematological 癌症和稳固的肿瘤表示汽车的 transduced。然而,许多挑战和障碍留下,例如修改汽车的主要 NK 房间的前 vivo 扩大和 NK 房间的低 transduction 效率。许多策略和技术被开发了在基于汽车的免疫疗法改进安全和治疗学的功效。而且, NK 房间表示许多激活的受体(NKR ) 例如 CD16, NKG2D, CD226 和 NKp30,它可能明确地认出在肿瘤房间上表示的 ligands。基于 NKR 识别的原则,指向 NKR 的策略很快正在出现。给在基于房间的免疫疗法多半为癌症治疗正在答应新策略的这评论, CAR-NK 和 NKR-NK 描述的有希望的临床的进步。 | Yuan HU Zhi-gang TIAN Cai ZHANG | 2018 | Acta Pharmacologica Sinica2018,39,2: | 34 |
| 7 | Swarm intelligence optimization and its application in geophysical data inversion显示文摘复杂地球物理的数据的倒置总是解决多参数,非线性、多模式的优化问题。寻找最佳的倒置答案类似于当寻找食物时,在象鸟和蚂蚁那样的群观察的社会行为。在这篇文章,首先,粒子群优化算法详细被描述,并且蚂蚁殖民地算法改善了。然后,方法被用于地球物理的倒置问题的三种不同类型:(1 ) 对噪音敏感的一个线性问题,(2 ) 线性、非线性的问题的同步倒置,并且(3 ) 一个非线性的问题。结果验证他们的可行性和效率。与常规基因算法相比并且退火模仿,他们有更高的集中速度和精确性的优点。与伪相比 -- 牛顿方法和 Levenberg-Marquardt 方法,他们与克服局部地最佳的答案的能力更好工作。 | Yuan Sanyi Wang Shangxu Tian Nan | 2009 | Applied Geophysics2009,6,2: | 29 |
| 8 | Palaeogeothermal response and record of the effusing of Emeishan basalts in the Sichuan basin显示文摘Thermal history of the Sichuan basin is reconstructed based on vitrinite reflectance from boreholes in the basin using a paleo-heat flow method.The results show that the Sichuan basin experienced a relatively low heat flow period in the Early Paleozoic,and an elevated paleo-heat flow,ranging 60-80 mW/m2 with a maximum as high as 100 mW/m2 around 259 Ma,from the beginning of the Late Paleozoic to the end of the early Permian,and a decreased paleo-heat flow from the late Permian to the late Triassic,and then maintained nearly stable to the present.The Late Paleozoic paleo-heat flow was quite high where there were extensive Emeishan flood basalts or concealed basalts which erupted between the early and the late Permian,such as the southwestern and northeastern areas of the Sichuan basin.According to the distribution of paleo-heat flow,it can be inferred that,the northeastern Sichuan basin was also influenced by the Emeishan magmatic activity during the Dongwu movement though there was lack of Emeishan flood basalts.In addition,the results of thermal history reconstruction of the Sichuan basin provide paleogeothermal evidence for the existence and onset of the Emaishan mantle plume. | ZHU ChuanQing XU Ming YUAN YuSon ZHAO YongQing SHAN JingNan HE ZhiGuo TIAN YunTao HU ShengBiao | 2010 | Chinese Science Bulletin2010,55,10: | 30 |
| 9 | Association of serum uric acid with different levels of glucose and related factors显示文摘以前的研究表明了的背景那浆液尿酸(UA ) 在一般人口是事件类型 2 糖尿病 mellitus (T2DM ) 的一个独立预言者。试图在 946 的一个总数使遭到的中国 population.Methods 调查在 UA 和血葡萄糖和另外的风险因素之间的 UA 和它的关系的特定的特征的这研究在这研究被包括。 UA ,葡萄糖,胰岛素, UA ( FEua )的部分排泄, creatinine 清理率( Ccr ),血红素 A1c ( HbA1c ), fructosamine ( FA ),在病人二星期联合 therapeutics.Results UA 经历了层次以后,血压和类脂化合物被学习并且也再考在有损害葡萄糖规定( IGR )的题目是最高的,与 T2DM 由题目与 normoglycemia ( NGT )并且最后由题目列在后面。在为胰岛素(AUCins ) 的曲线下面的 2 小时的饭后的胰岛素和区域的水平显示出一个类似的趋势。UA 层次开始与增加 fasting 血葡萄糖(FBG ) 和饭后的血葡萄糖(PPBG ) 层次增加了,直到 7 mmol/L,分别地, 10 mmol/L 在更高的 FBG 和 PPBG 层次减少了。与在更低的浆液 UA 的题目相比方照,题目在上面更高有的浆液 UA 层次方照象更低的 Ccr 和 FEua 层次一样的重量, triglyceride 层次,和 creatinine 层次。与女人的组相比, UA 层次更高,并且 FEua 层次在男人的组是更低的。性,身体团索引(BMI ) ,吝啬的动脉的血压(地图) ,浆液 triglycerides (TG ) , FA 和 Ccr 是 UA 的独立关联因素。在病人经历了开始增加然后当葡萄糖层次与 NGT 和 T2DM 从 NGT 增加了到 IGR 和 T2DM.Compared,减少了的联合 treatment.Conclusions UA 以后, UA 减少了, FEua 增加了, IGR 题目有更高的 SUA 层次,它与它胰岛素的高水平有关。在 T2DM,男性, BMI,地图, Ccr, TG 和 FA 下面是 UA 的独立关联因素。葡萄糖阴沉, antihypertensive,联合治疗具有优点 T2DM 的 SUA 衰退的调整 lipemia。 | YUAN Hui-juan YANG Xu-guang SHI Xiao-yang TIAN Rui ZHAO Zhi-gang | 2011 | Chinese Medical Journal2011,,10: | 29 |
| 10 | Crystal structure of the YTH domain of YTHDF2 reveals mechanism for recognition of N6-methyladenosine显示文摘 | Tingting Zhu Ian A Roundtree Ping Wang Xiao Wang Li Wang Chang Sun Yuan Tian Jie Li Chuan He Yanhui Xu | 2014 | Cell Research2014,24,12: | 28 |
| 11 | Solvothermal-Assisted Exfoliation Process to Produce Graphene with High Yield and High Quality显示文摘Monolayer and bilayer graphene sheets have been produced by a solvothermal-assisted exfoliation process in a highly polar organic solvent,acetonitrile,using expanded graphite(EG)as the starting material.It is proposed that the dipole-induced dipole interactions between graphene and acetonitrile facilitate the exfoliation and dispersion of graphene.The facile and effective solvothermal-assisted exfoliation process raises the low yield of graphene reported in previous syntheses to 10 wt%12 wt%.By means of centrifugation at 2000 rpm for 90 min,monolayer and bilayer graphene were separated effectively without the need to add a stabilizer or modifi er.Electron diffraction and Raman spectroscopy indicate that the resulting graphene sheets are high quality products without any signifi cant structural defects. | Wen Qian Rui Hao Yanglong Hou Yuan Tian Chengmin Shen Hongjun Gao Xuelei Liang | 2009 | Nano Research2009,2,9: | 28 |
| 12 | Effects of icariin on erectile function and expression of nitric oxide synthase isoforms in castrated rats显示文摘瞄准:在可勃起的功能和氮的氧化物 synthase (NOS ) 的表达式上调查 icariin 的效果在阉割的老鼠的 isoforms。方法:32 只成年男 Wistar 老鼠随机被划分成一假冒操作组(A) ,三阉割了组(B, C 和 D ) 。在外科以后的一个星期,老鼠与生理盐水(组 A 和 B ) 或口头的 icariin 被对待(1 mg/[kg.day ] 为组 C 和 5 mg/[kg.day ] 为组 D ) 为 4 个星期。一星期术后疗法,老鼠的可勃起的功能被在 cavernosal 神经的电镀物品刺激期间测量 intracavernosal 压力(ICP ) 估计。浆液睾丸激素(圣)层次,在小梁的织物的平滑肌( PSM )的百分比,和 mRNA 的表示和神经元的氮的氧化物 synthase ( nNOS )的蛋白质,可诱导的氮的氧化物 synthase ( i NOS ),内皮的氮的氧化物 synthase ( eNOS )和在阴茎海绵体( CC )的磷酸二酯酶 V ( PDE5 )也被评估。结果:ICP, PSM,圣和 nNOS, i NOS, eNOS 和 PDE5 的表示显著地在组 A (P 0.01 ) 与那些相比在组 B 被减少。然而, ICP, PSM 和 nNOS 和 i NOS 的表示在组 B (P 0.05 ) 与那些相比在组 C 和 D 被增加。在圣和 eNOS 和 PDE5 的表示的变化不是重要的(P 0.05 ) 在组 C 和 D 与那些相比在组 B。结论:有为 4 个星期的 icariin (98.6 % 纯净) 的口头的处理潜在地改进可勃起的功能。这效果随阉割的老鼠的 CC 的 PSM 和某些 NOS 的表示的增加被相关。这些结果建议 icariin 可以在可勃起的机能障碍上有治疗学的效果。 | Wu-Jiang Liu Zhong-Cheng Xin Hua Xin Yi-Ming Yuan Long Tian Ying-Lu Guo | 2005 | Asian Journal of Andrology2005,7,4: | 22 |
| 13 | Expression and signifi cance of TLR4 and HIF-1α in pancreatic ductal adenocarcinoma显示文摘AIM:To investigate the expression of toll-like receptor(TLR) 4,nuclear factor-κB(NF-κB) p65 and hypoxiainducible transcription factor 1α(HIF-1α) in pancreatic ductal adenocarcinoma and their clinical significance.METHODS:The mRNA of TLR4 and HIF-1α were investigated by real-time polymerase chain reaction in 30 cases of pancreatic ductal adenocarcinoma and its adjacent tissues,and expression of TLR4,NF-κB p65 and HIF-1α protein were detected by immunohistochemistry in 65 cases of pancreatic ductal adenocarcinoma tissues and 38 cases of corresponding adjacent tissues.The relationship between TLR4 or HIF-1α and pathologic features,as well as the association between TLR4 and HIF-1α,were also analyzed.Kaplan-Meier method was used to assess the impact of expression of TLR4 and HIF-1α on survival of patients with pancreatic cancer.RESULTS:The relative quantif ication of TLR4 and HIF-1α mRNA in tumor tissues was 0.81±0.10 and 0.87±0.11,respectively,signif icantly higher than that in adjacent tissues(0.81±0.10 vs 0.70±0.16,P=0.002;0.87±0.11 vs 0.68±0.13,P=0.000).The protein expression of TLR4,NF-κB p65 and HIF-1α in tumor tissues was 69.20%,66.15% and 70.80%,respectively,being signif icantly higher than that in adjacent normal tissues(69.20% vs 39.50%,P=0.003;66.15% vs 31.58%,P=0.001;70.80% vs 36.80%,P=0.001).There was no signif icant correlation between TLR4 or HIF-1α expression and the age,gender,tumor location,the degree of tumor differentiation in the patients(P>0.05).However,there was signif icant correlation between the expression of TLR4 or HIF-1α and tumor size,lymph node metastasis,venous invasion and clinical staging(P<0.05).The expression of TLR4 and HIF-1α had a signif icant impact on survival of patients with pancreatic adenocarcinoma.CONCLUSION:TLR4,NF-κB p65 and HIF-1α are overexpressed in pancreatic adenocarcinoma,TLR4 may be partly involved in up-regulating HIF-1α,and both synergestically promote development of pancreatic adenocarcinoma. | Jian-Jun Zhang,He-Shui Wu,Lin Wang,Yuan Tian,Jing-Hui Zhang,Hai-Long Wu Department of Pancreatic Surgery,Union Hospital,Tongji Medical College,Huazhong University of Science and Technology,Wuhan 430022,Hubei Province,China Department of Pediatrics,Union Hospital,Tongji Medical College,Huazhong University of Science and Technology,Wuhan 430022,Hubei Province,China Laboratory of General Surgery,Union Hospital,Tongji Medical College,Huazhong University of Science and Technology,Wuhan 430022,Hubei Province,China | 2010 | World Journal of Gastroenterology2010,16,23: | 21 |
| 14 | Crystal structure and biochemical analyses reveal Beclin 1 as a novel membrane binding protein显示文摘Beclin 1 基因是 haplo 不够的肿瘤 suppressor 并且在 autophagy 起一个必要作用。然而, Beclin 1 由工作的分子的机制仍然保持大部分未知。这里,我们在 1.6 Å 报导 Beclin 1 的 evolutionarily 保存的领域(ECD ) 的水晶结构;分辨率。Beclin 1 ECD 展览一以前 unreported 褶层,与在中央轴附近相称性地安排的三次结构的重复。Beclin 1 ECD 定义膜绑定领域的一个新奇的类,与为与 cardiolipin 充实的类脂化合物膜的强壮的偏爱。在 Beclin 1 ECD 的一个表面环的尖端,包括三芳香的氨基酸,与类脂化合物膜充当一根恐水病的手指到伙伴,因而导致膜和 liposomes 的变丑。这些芳香的残余的变化使 Beclin 1 变为不能稳定地在 vitro 与类脂化合物膜联系并且不能充分在 vivo 在 Beclin 1-knockdown 房间救 autophagy。这些观察为译解形成一个重要框架 Beclin 1 的生物功能。 | Weljlao Huang Wooyoung Chol Wanqiu Hu Na Mi Qiang Guo Meisheng Ma Mei Liu Yuan Tian Peilong Lu Feng-Liang Wang Haiteng Deng Lei Liu Ning Gao Li Yu Yigong Shi | 2012 | Cell Research2012,22,3: | 21 |
| 15 | Research Progress in Occupational Health Risk Assessment Methods in China显示文摘Traditional occupational disease control and prevention has remained prevalent in China over recent decades.There are appropriately 30,000 new case reports of occupational diseases annually.Although China has already established a series of occupational disease prevention programs,occupational health risk assessment(OHRA)strategies continue to be a limitation.OHRA is a tool for controlling the health | ZHOU Li Fang TIAN Fang ZOU Hua YUAN Wei Ming HAO Mo ZHANG Mei Bian | 2017 | Biomedical and Environmental Sciences2017,30,8: | 20 |
| 16 | Clinical and radiographic results of cervical artificial disc arthroplasty: over three years follow-up cohort study显示文摘颈的圆盘关节造形术的背景理论上的优点在邻近片断的退化的颈的脊骨,和减小包括正常运动和 biomechanics 的保藏。在短术语的颈的圆盘关节造形术的临床、 X 光线照相术的效果被查明了。这研究的目的是在这未来的队研究研究中间的 results.Methods 的数据,从 2003 年 12 月经历了颈的磁盘关节造形术到 2006 年 1 月的 50 个病人被注册。有 39 个病人,收到了 1 水平圆盘关节造形术,并且 11 个病人收到了 2 水平圆盘关节造形术,与 50.9 年(从 29 ~ 73 的范围) 的平均年龄。中部的后续是 41.85months (从 36.00-55.63 月的范围) 。病人们关于他们日本整形外科的协会(JOA ) 分数的中部的价值是的症状,神经症状,和 X 光线照相术的 results.Results 有希望地被跟随 14.0 在外科前,并且 16.5 在最近的后续(P 0.01 ) 。JOA 分数的恢复率的中部的价值是 92.2% 。在索引的水平的运动(ROM ) 的外科手术前的范围是(10.40 吗?? | TIAN Wei HAN Xiao LIU Bo LI Qin HU Lin LI Zhi-yu YUAN Qiang HE Da XING Yong-gang | 2010 | Chinese Medical Journal2010,,21: | 19 |
| 17 | Characteristics and origin of abnormally high porosity zones in buried Paleogene clastic reservoirs in the Shengtuo area, Dongying Sag, East China显示文摘There are three abnormally high porosity zones developed in buried Paleogene nearshore subaqueous fan and sublacustrine fan clastic reservoirs at 2,800-3,200 m, 3,250-3,700 m and 3,900-4,400 m, respectively, within the Shengtuo area of the Dongying Sag. Here the porosity of reservoirs buried deeper than 4,000 m can still be greater than 20%. Investigation of these three abnormally high porosity(AHP) zones in the 3rd to 4th member of the Paleogene Shahejie Formation in the Shengtuo area was carried out with utilization of core observation, thin section identification, SEM observation, image analysis, core physical property testing and other technical methods. The results show that, the AHP zones in 2,800-3,200 m and 3,250-3,700 m are visible pores primary AHP zones dominated by significant primary intergranular pores(more than 50% of the total porosity), while secondary pores and micropores in authigenic clays may develop in some reservoirs. AHP reservoirs in the AHP zone of 3,900-4,400 m are dominated by micropores in matrix, visible pores are mainly grain dissolution pores but with low absolute content(< 1%), so this zone belongs to the micropores primary AHP zone. The genesis of the three AHP zones was studied to distinguish between porosity enhancement and porosity preservation. Our research shows that, in deeply buried clastic reservoirs in the Shengtuo area, mineral dissolution occurred in a relatively closed diagenetic system with high temperature and high salinity. Reservoir rocks underwent extensive feldspar dissolution, while detrital carbonate grains and carbonate cements show no evidence of extensive dissolution. Although significant feldspar dissolution pores developed, feldspar dissolution enhanced porosity only a little due to the precipitation of almost isovolumetric dissolution products in the nearby primary intergranular pores in forms of authigenic clays and quartz cements. Net enhanced porosity originating from feldspar dissolution is generally less than 0.25%. Thus, the subsurface dissolution has little impact on the mid-deep buried high porosity reservoirs. Reservoirs in braided channels of middle fans in sublacustrine fans and reservoirs in the middle-front of fan bodies of nearshore subaqueous fans provide the basis for the development of AHP zones. The shallow development of fluid overpressure and early hydrocarbon emplacement have effectively retarded compaction and carbonate cementation, so that the high porosity in the superficial layers is preserved in the mid-deep layers. These are the main controlling factors in the development of AHP zones. | Cao Yingchang Yuan Guanghui Li Xiaoyan Wang Yanzhong Xi Kelai Wang Xiaoming Jia Zhenzhen Yang Tian | 2014 | Petroleum Science2014,11,3: | 18 |
| 18 | System of systems oriented flight vehicle conceptual design: Perspectives and progresses显示文摘In order to obtain optimized flight vehicle concepts which meet system of systems(So S)operation requirements,designers have to pay high attention to the impact of So S at conceptual design stage since operation environment goes increasingly complex.Based on this tendency,perspectives and progresses of So S oriented flight vehicle conceptual design,which is abbreviate as So Sed design,are reviewed in this paper.Such basic concepts of So S as definition,characteristics,differences between systems engineering and So S engineering,as well as So Sed design process are introduced,then So S engineering process model for research and development of flight vehicles and So Sed design wheel model for conceptual design are proposed.Related literature is classified and analyzed in accordance with four major elements including requirements,design concept,design analysis,and trade studies and optimization:typical So S architectures,description and quantization of indexes are introduced;Application of inverse design in designing concept is analyzed;Modeling and simulation(M&S)-based methods and their applications in So Sed effectiveness evaluation are highlighted;According to So Sed trade studies and optimization related research,the importance of such points as decision-making and using multidisciplinary design optimization for reference are emphasized.Finally,the value of So Sed design is concluded,and five directions which are worthy of attention in this field are presented. | Liu Hu Tian Yongliang Gao Yuan Bai Jinpeng Zheng Jiangan | 2015 | Chinese Journal of Aeronautics2015,28,3: | 18 |
| 19 | Comparison of the clinical accuracy of cervical (C2-C7) pedicle screw insertion assisted by fluoroscopy, computed tomography-based navigation, and intraoperative three-dimensional C-arm navigation显示文摘背景在小花梗之中的颈的脊骨和变化的复杂解剖减少精确性并且增加在这个区域与螺丝钉培植联系的神经与血管的复杂并发症的风险。在这研究,我们比较了精确性颈(C2-C7 ) 小花梗螺丝钉固定由 X 光检查荧光检查帮助了,计算断层摄影术(CT ) 基于航行,或 intraoperative 三维(3D )C 手臂 navigation.Methods 这未来的队研究在经历了颈的小花梗的 82 个连续病人被执行螺丝钉固定。螺丝钉插入的精确性被手术后的 CT 扫描与 3D 重建估计。螺丝钉插入的精确性是被估计:优秀(在小花梗以内完全拧紧) ;可接受(1 张公里螺丝钉外面小花梗外皮) ;145 全部的 .Results A 淫的穷人(1 张公里螺丝钉外面小花梗外皮) 在经历了 C 手臂荧光检查的 24 个病人被插入。这些, 96 个螺丝钉(66.2%) 是优秀的,(25.5%) 37 是可接受的,并且(8.3%) 12 是差的。159 个螺丝钉在基于 CT 的航行组在 29 个病人被插入。在这些之中,(88.7%) 141 是优秀的,(8.8%) 14 是可接受的,并且(2.5%) 4 是差的。140 个螺丝钉的一个总数在 intraoperative 3D C 手臂航行组,(90.7%) 127 是优秀的在 29 个病人被插入,并且(9.3%) 13 是可接受的。与螺丝钉插入联系的严重或永久的神经与血管的复杂并发症都没在基于 CT 的任何 patient.Conclusione 被观察, intraoperative 3D C 手臂航行是同样精确的,并且显著地是两个比为指导颈的小花梗的 C 手臂荧光检查精确的更多拧紧固定。他们能精确地用视觉 3D 图象指导螺丝钉放置的角度和深度。这二种技术为高风险的颈的小花梗螺丝钉固定因此更好。intraoperative 3D C 手臂航行的容易和便利建议它可以在未来代替虚拟荧光检查、基于 CT 的航行系统临床的应用程序。 | LIU Ya-jun TIAN Wei LIU Bo LI Qin HU Lin LI Zhi-yu YUAN Qiang LUE Yan-wei SUN Yu-zhen | 2010 | Chinese Medical Journal2010,,21: | 17 |
| 20 | Expression and localization of CKLFSF2 in human spermatogenesis显示文摘瞄准:调查表示并且代替细胞的本地化象 ofchemokine 一样因素总科 2 (CKLFSF2 ) 在在精子发生的人的睾丸和它的潜在的角色。方法:对 CKLFSF2 的特定的 polyclonal 抗体被提起。表示和在生精的小管的 CKLFSF2 的细胞的本地化是检查 byimmu-nohistochemistry 方法。另外,在 situ,杂交被使用本地化 mRNAdistribution。EGFP-CKLFSF2 熔化蛋白质在 COS-7 房间被表示在 vitro 本地化 itssubcellular 地点。另外,在有男不孕的病人的睾丸的 CKLFSF2 的反常表示是由反向的抄写聚合酶链反应(RT-PCR ) 的 assayed andimmunohistochemistry 方法。结果:与精子发生有靠近的关联背叛, CKLFSF2 明确地在 meiotic 和 post-meiotic 细菌房间被表示,它对 endoplasmic 蜂窝胃局部性(嗯) 在 Golgi 仪器附近。结论:CKLFSF2 能在成熟分裂和精子形式的过程起重要作用,并且可能在 endoplasmic 蜂窝胃涉及小囊的运输或膜并置事件。 | Gang Liu Zhong-Cheng Xin Liang Chen Long Tian Yi-Ming Yuan Wei-Dong Song Xue-Jun Jiang Ying-Lu Guo | 2007 | Asian Journal of Andrology2007,9,2: | 16 |