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    题名 作者 年代 出处 被引量
1Mechanism of the December 2015 Catastrophic Landslide at the Shenzhen Landfill and Controlling Geotechnical Risks of Urbanization显示文摘Yueping Yin Bin Li Wenpei Wang Liangtong Zhan Qiang Xue Yang Gao Nan Zhang Hongqi Chen Tiankui Liu Aiguo Li 2016Engineering2016,2,2:64
2Analysis of observations on the urban surface energy balance in Beijing显示文摘1 年(20092010 ) 大小从在一个 325-m 塔的三垂直的层位于闹市区北京的传感器获得的城市的表面精力平衡(SEB ) 被分析。结果显示出那:(1 ) 从 325-m 塔的大小代表位于半潮湿的温暖适度的大陆人季风气候地区的城市的 SEB 特征。在典型热、多雨的夏天,感冒和干燥冬季,测量鲍恩比率在冬季在夏天和最大值是最小的。在 140 m 测量春天,夏天,秋天,和冬季的鲍恩比率分别地是 2.86, 0.82, 1.17,和 4.16。(2 ) 在 140-m 的高度(在经常的流动层) ,中午反照率是 0.10 夏天, 0.12 为春天和秋天,并且 0.14 为冬季。白天的比率理智的热流动,潜伏的热流动,和捕捞放射的存储热流动是 0.25, 0.16,和 0.59 清楚天空的天,并且 0.33, 0.19,和 0.48 为多云的天分别地。(3 ) 在清楚天空的天下面,夜间理智的热流动是几乎零,但是潜伏的热流动比零大。为多云的天,夜间理智的热流动比在冬季的潜伏的热流动稍微大。向上的热流动是的夜间大概由于人为的版本(为夏天的主要潜伏的热,当时为冬季的潜伏、理智的热) 。MIAO ShiGuang DOU JunXia CHEN Fei LI Ju LI AiGuo 2012Science China Earth Sciences2012,55,11:23
3Crustal structure of the northwestern sub-basin, South China Sea: Results from a wide-angle seismic experiment显示文摘The crustal structure of the northwestern sub-basin area of the South China Sea was modeled by inverting a wide-angle seismic survey line across the entire region and on both sides of its bounding continental margins. The survey line extended over 484 km. A total of 14 Ocean Bottom Seismometers (OBS) were deployed at intervals of 30 km to record air-gun array sources with a combined volume of 5160 in 3 . The crustal velocity structure of the northwestern sub-basin area was acquired through the integration of multi-channel seismic data. OBS data were processed and modeled initially using ray tracing inversion techniques. Results indicate that crustal thickness under the continental slope decreases from 21 to 11 km, crustal thickness of the northwestern sub-basin is 7.7 km, and the depth to the Moho ascends from 21 km under the upper continental slope to 11 km under the middle basin. The crust of the northwestern sub-basin is similar to that of the eastern sub-basin in its oceanic crustal structure. This structure has a thicker layer 1 (sedimentary layer) and a thinner layer 2. These characteristics are especially clear in the eastern sub-basin, which differs somewhat from typical oceanic crust. The tectonic geometry and velocity structure of the northwestern sub-basin and its margins comprise a symmetrical conjugate and indicate a pure shear mode with regard to the continental margin rifting mechanism. We did not find clear seismic signals from high velocity layers under the lower crust of the continental margin in the northern part of the northwestern sub-basin, which provides new evidence for the idea that the western part of the northern continental margin of the South China Sea constitutes nonvolcanic crust. Because the seafloor spreading period of the northwestern sub-basin was short, layer 2 might have experienced asymmetrical basalt magma flows, which may have blurred the magnetic anomaly lineations of the northwestern sub-basin.WU ZhenLi LI JiaBiao RUAN AiGuo LOU Hai DING WeiWei NIU XiongWei LI XiBing 2012Science China Earth Sciences2012,55,1:19
4Hydrogeochemical and Isotopic Evidence for Flow Paths of Karst Waters Collected in the Heshang Cave,Central China显示文摘Understanding of hydrological processes in caves is important to help us interpret paleoclimate records from speleothems. In this study,we integrated hydrogeological and hydrogeochemical properties to characterize the hydraulic behavior of karst waters in the Heshang Cave,Central China. Using geological and topographical analyses,we identified regional watershed boundaries and hydrogeological connections that were controlled by anticlinal geometry and faults. Water samples were collected from the Heshang Cave and potential recharge sites. Geochemical data of c(Sr2+)/c(Ca2+) and c(Mg2+)/c(Ca2+) ratios suggest that the drainage system in Heshang Cave consists of two flow paths. For vadose waters,including drip water and rimstone pool water,c(Sr2+)/c(Ca2+) ratio ranges from 0.000 6 to 0.001 1,and c(Mg2+)/c(Ca2+) ratio ranges from 0.97 to 1.1,indicating that recharge was mainly from rainfall infiltration through the overlying Cambrian dolomite stratum. In contrast,slope current and underground river waters have higher c(Sr2+)/c(Ca2+) ratios(values from 0.002 2 to 0.002 8),and lower c(Mg2+)/c(Ca2+) ratios(values from 0.50 to 0.64). These waters show homogeneous isotopic composition(δ18O:-7.15‰–-6.95‰; δD:-52.73‰–-51.31‰),implying recharge of allogeneic water from the Xiaoer River via karst conduits that pass through Ordovician limestone and Cambrian dolomite stratum.Xiang Long Ziyong Sun Aiguo Zhou Deliang Liu 2015Journal of Earth Science2015,26,1:18
5Data Fusion Algorithm Based on Fuzzy Sets and D-S Theory of Evidence显示文摘In cyber-physical systems, multidimensional data fusion is an important method to achieve comprehensive evaluation decisions and reduce data redundancy. In this paper, a data fusion algorithm based on fuzzy set theory and Dempster-Shafer(D-S) evidence theory is proposed to overcome the shortcomings of the existing decision-layer multidimensional data fusion algorithms. The basic probability distribution of evidence is determined based on fuzzy set theory and attribute weights, and the data fusion of attribute evidence is combined with the credibility of sensor nodes in a cyber-physical systems network. Experimental analysis shows that the proposed method has obvious advantages in the degree of the differentiation of the results.Guangzhe Zhao Aiguo Chen Guangxi Lu Wei Liu 2020Tsinghua Science and Technology2020,25,1:17
6The HuangZaoSi Maize Genome Provides Insights into Genomic Variation and Improvement History of Maize显示文摘Maize is a globally important crop that was a classic model plant for genetic studies. Here, we report a 2.2 Gb draft genome sequence of an elite maize line, HuangZaoSi (HZS). Hybrids bred from HZS-improved lines (HILs) are planted in more than 60% of maize fields in China. Proteome clustering of six completed sequeneed maize genomes show that 638 proteins fall into 264 HZS-specific gene families with the majority of contributions from tandem duplication events. Resequencing and comparative analysis of 40 HZSrelated lines reveals the breeding history of HILs. More than 60% of identified selective sweeps were clustered in identity.by.descent conserved regions, and yield-related genes/QTLs were enriched in HZS characteristic selected regions. Furthermore, we dem on strated that HZS-specific family genes were not uniformly distributed in the genome but enriched in improvement/function.related genomic regions. This study provides an important and novel resource for maize genome research and expands our knowledge on the breadth of genomic variation and improvement history of maize.Chunhui Li Wei Song Yingfeng Luo Shenghan Gao Ruyang Zhang Zi Shi Xiaqing Wang Ronghuan Wang Fengge Wang Jidong Wang Yanxin Zhao Aiguo Su Shuai Wang Xin Li Meijie Luo Shuaishuai Wang Yunxia Zhang Jianrong Ge Xinyu Tan Ye Yuan Xiaochun Bi Hang He Jianbing Yan Yuandong Wang Songnian Hu Jiuran Zhao 2019Molecular Plant2019,12,3:15
7Research progress and mechanism of nanomaterials-mediated in-situ remediation of cadmium-contaminated soil:A critical review显示文摘Cadmium contamination of soil is a global issue and in-situ remediation technology as a promising mitigation strategy has attracted more and more attention.Many nanomaterials have been applied for the in-situ remediation of cadmium-contaminated soil due to their excellent properties of the nano-scale size effect.In this work,recent research progress of various nanomaterials,including carbon nanomaterials,metal-based nanomaterials and nano mineral materials,in the removal of cadmium and in-situ remediation of cadmiumcontaminated soil were systematically discussed.Additional emphases were particularly laid on both laboratory and field restoration effects.Moreover,the factors which can affect the stability of cadmium,main interaction mechanisms between nanomaterials and cadmium in the soil,and potential future research direction were also provided.Therefore,it is believed that this work will ultimately contribute to the myriad of environmental cleanup advances,and further improve human health and sustainable development.Yuenan Zhang Yujie Zhang Ozioma Udochukwu Akakuru Xiawei Xu Aiguo Wu 2021Journal of Environmental Sciences2021,33,6:15
8Investigating the dynamic mechanical behaviors of polyurea through experimentation and modeling显示文摘Polyurea is widely employed as a protective coating in many fields because of its superior ability to improve the anti-blast and anti-impact capability of structures.In this study,the mechanical properties of polyurea XS-350 were investigated via systematic experimentation over a wide range of strain rates(0.001-7000 s^-1)by using an MTS,Instron VHS,and split-Hopkinson bars.The stress-strain behavior of polyurea was obtained for various strain rates,and the effects of strain rate on the primary mechanical properties were analyzed.Additionally,a modified rate-dependent constitutive model is proposed based on the nine-parameter Mooney-Rivlin model.The results show that the stress-strain curves can be divided into three distinct regions:the linear-elastic stage,the highly elastic stage,and an approximate linear region terminating in fracture.The mechanical properties of the polyurea material were found to be highly dependent on the strain rate.Furthermore,a comparison between model predictions and the experimental stress-strain curves demonstrated that the proposed model can characterize the mechanical properties of polyurea over a wide range of strain rates.Hao Wang Ximin Deng Haijun Wu Aiguo Pi Jinzhu Li Fenglei Huang 2019Defence Technology(防务技术)2019,15,6:13
9The Durability of Alkali-Activated Materials in Comparison with Ordinary Portland Cements and Concretes:A Review显示文摘China is the largest producer and user of ordinary Portland cement(OPC),and the rapid growth of infrastructure development demands more sustainable building materials for concrete structures.Alkali-activated materials(AAMs)are a new type of energy-saving and environmentally friendly building material with a wide range of potential applications.This paper compares the durability of AAMs and 0 PC-based materials un der sulfate attack,acid corrosion,carb on ation,and chloride penetratio n.Different AAMs have shown distinct durability properties due to different compositions being formed when different raw materials are used.According to the calcium(Ca)concentration of the raw materials,this paper interprets the deterioration mechanisms of three categories of AAMs:calcium-free,low-calcium,and calcium-rich.Conflicts found in the most recent research are highlighted,as they raise concerns regarding the consistenee and long-term properties of AAMs.Nevertheless,AAMs show better durability performances than OPC-based materials in general.Aiguo Wang Yi Zheng Zuhua Zhang Kaiwei Liu Yan Li Liang Shi Daosheng Sun 2020Engineering2020,6,6:13
10Positive correlation between PPARγ/PGC-1α and γ-GCS in lungs of rats and patients with chronic obstructive pulmonary disease显示文摘氧化应力是长期的妨碍的肺的疾病(COPD ) 的主要致病之一。-Glutamylcysteine 合成酶(-GCS) 是在 COPD 的首要的抗氧化剂酶之一。Peroxisome 激活 proliferator 的 receptor-gamma (PPAR ) 是一个激活 ligand 的抄写因素,它被象 rosiglitazone (RGZ ) 那样的特定的 ligands 激活,施加多重生物效果。PPAR coactivator-1 (PGC-1 ) 是 PPAR 激活剂,它由 PPAR ligands 的正式就职绑在 PPAR,共同激活 PPAR 目标基因。成长证据建议了 PPAR/PGC-1 能调整多重抗氧化剂基因。然而, -GCS 上的 PPAR/PGC-1 的效果在 COPD 的发展期间仍然保持不清楚。这里,我们在 + lipopolysaccharide (LPS ) 和 CS +LPS + RGZ,以及病人的肺受不了的香烟烟(CS ) 对待的老鼠的肺测量了 PPAR, PGC-1 和 -GCS,-GCS 活动和反应的氧种类(ROS ) 内容的表示层次 COPD。与从 CS +对待 LPS 的老鼠的肺相比,对待 RGZ 的老鼠的肺表明了 -GCS 活动的显著地更低的 ROS 内容,和显著增加和 PPAR, PGC-1,和 -GCS 的表示层次的增加。与控制相比,而且, PPAR, PGC-1,和 -GCS 的表达式层次显著地在温和 COPD 病人的肺增加了,并且日益增多地与中等、严重的 COPD 在病人的肺减少了。-GCS 蛋白质断然与 FEV1% 被相关。PPAR 和 PGC-1 蛋白质断然与 -GCS 活动和 mRNA 水平被相关。在结论, -GCS 在 COPD 的早阶段显示出补偿 upregulation,它日益增多地与增加 COPD 严厉患心脏代偿失调。PPAR/PGC-1 小径的激活可以由 upregulating -GCS 免于 COPD 前进并且减轻氧化应力。Jie Li Aiguo Dai Ruicheng Hu Liming Zhu Shuangxiang Tan 2010Acta Biochimica et Biophysica Sinica2010,42,9:13
11Genetic alteration and mutation profiling of circulating cell-free tumor DNA(cfDNA) for diagnosis and targeted therapy of gastrointestinal stromal tumors显示文摘Gastrointestinal stromal tumors(GISTs) have been recognized as a biologically distinctive type of tumor,different from smooth muscle and neural tumors of the gastrointestinal tract.The identification of genetic aberrations in proto-oncogenes that drive the growth of GISTs is critical for improving the efficacy of cancer therapy by matching targeted drugs to specific mutations.Research into the oncogenic mechanisms of GISTs has found that these tumors frequently contain activating gene mutations in either platelet-derived growth factor receptor A(PDGFRA) or a receptor tyrosine protein associated with a mast cell growth factor receptor encoded by the KIT gene.Mutant cancer subpopulations have the potential to disrupt durable patient responses to molecularly targeted therapy for GISTs,yet the prevalence and size of subpopulations remain largely unexplored.Detection of the cancer subpopulations that harbor low-frequency mutant alleles of target proto-oncogenes through the use of molecular genetic methods,such as polymerase chain reaction(PCR) target amplification technology,is hampered by the high abundance of wildtype alleles,which limit the sensitivity of detection of these minor mutant alleles.This is especially true in the case of mutant tumor DNA derived 'driver' and 'drug-resistant' alleles that are present in the circulating cell-free tumor DNA(cfDNA) in the peripheral blood circulation of GIST patients.So-called 'liquid biopsy' allows for the dynamic monitoring of the patients' tumor status during treatment using minimally invasive sampling.New methodologies,such as a technology that employs a xenonucleic acid(XNA) clamping probe to block the PCR amplification of wild-type templates,have allowed improved molecular detection of these low-frequency alleles both in tissue biopsy samples and in cfDNA.These new methodologies could be widely applied for minimally invasive molecular testing in the therapeutic management of GISTs.Weixin Yan Aiguo Zhang Michael J.Powell 2016Chinese Journal of Cancer2016,35,7:13
12Crustal Structure across the Northwestern Margin of South China Sea:Evidence for Magma-poor Rifting from a Wide-angle Seismic Profile显示文摘我们从宽角度的地震侧面在 OBS2006 期间在华南海(SCS ) 的西北部分获得了的 484 km 的现在的结果航行。沿着一根以前获得的多信道的地震的线(SO4918 ) 跑的线穿过北边缘的大陆人斜坡,华南海的西北 Subbasin (NWSB ) , Zhongsha 山岳并且部分华南海的海洋的盆。在 13 张海洋底部测震表上记录的地震的节被用来从外壳的层识别测定阶段并且也从外壳披风边界(莫霍) 反映了阶段。用一个简单开始模型的 traveltimes 的倒置在学习区域揭示外壳的图象。速度模型证明在大陆人斜坡下面的外壳的厚度在 14 和 23 km 之间。线的大陆人部分被描绘由轻轻向陆地披风高举并且突然的 oceanward。在更低的外壳中的速度不超过 6.9 km/s。与新数据,我们能在线的地点排除高速度的更低的外壳的身体(在 7.0 km/s 上面的速度) 。我们断定华南海边缘的这部分由岩浆穷人 rifting 发展了。两个都, NWSB 和西南亚盆(SWSB ) 与在 5 和 7 km 之间的外壳的厚度揭示为海洋的外壳典型的速度。两者之间的 Zhongsha 山岳极其被拉长, 610 仅仅 km 大陆人外壳离开了。外壳的速度在 6.5 km/s 下面;可能显示更低的外壳的缺席。多信道的地震侧面证明 Yitongansha 在斜坡区域和 Zhongsha 山岳高举仅仅温和地被使变形。当僵硬大陆堵住哪个充当了随后导致西北亚盆的形成的主要裂缝的裂缝肩膀,我们考虑了他们。延期主要被提供由一可锻降低外壳的流动,它可能极其被稀释了并且在传播阶段期间流进海洋的盆。我们沿着北边缘比较了外壳的结构并且发现了东方西方变厚在大陆斜坡下面的外壳的趋势。这可能被沿着大陆人边缘传播的东方西方海地板贡献。DING Weiwei Michael SCHNABEL Dieter FRANKE RUAN Aiguo WU Zhenli 2012Acta Geologica Sinica(English Edition)2012,86,4:12
13The Coix Genome Provides Insights into Panicoideae Evolution and Papery Hull Domestication显示文摘Coix is a grass crop domesticated as early as the Neolithic era.It is still widely cultivated for both highly nutritional food and medicinal use.However,the genetic study and breeding of this crop are hindered by the lack of a sequenced genome.Here,we report de novo sequencing and assembly of the 1619-Mb genome of Coix,and annotation of 75.39%repeats and 39629 protein-coding genes.Comparative genomics analysis showed that Coix is more closely related to sorghum than maize,but intriguingly only Coix and maize had a recent genome duplication event,which was not detected in sorghum.We further constructed a genetic map and mapped several important traits,especially the strength of hull.Selection of papery hull(thin:easy dehulling)from the stony hull(thick:difficult dehulling)in wild progenitors was a key step in Coix domestication.The papery hull makes seed easier to process and germinate.Anatomic and global transcriptome analysis revealed that the papery hull is a result of inhibition of cell division and wall biogenesis.We also successfully demonstrated that seed hull pressure resistance is controlled by two major quantitative trait loci(QTLs),which are associated with hull thickness and color,respectively.The two QTLs were further fine mapped within intervals of 250 kb and 146 kb,respectively.These resources provide a platform for evolutionary studies and will facilitate molecular breeding of this important crop.Chao Guo Yanan Wang Aiguo Yang Jun He Chaowen Xiao Shanhua Lv Fengming Han Yibing Yuan Yuan Yuan Xiaolong Dong Juan Guo YawenYang-Hailan Liu Ningzhi Zuo Yaxi Hu Kangxu Zhao Zhengbo Jiang Xing Wang Tingting Jiang Yaou Sherf Moju Cao Yuan Wang Zhaobo Long Tingzhao Rong Luqi Huang Shufeng Zhou 2020Molecular Plant2020,13,2:11
14Activation of Mitochondrial orf355 Gene Expression by a Nuclear-Encoded DREB Transcription Factor Causes Cytoplasmic Male Sterility in Maize显示文摘Coordination between mitochondria and the nucleus is crucial for fertility determination in plants with cytoplasmic male sterility(CMS).Using yeast one-hybrid screening,we identified a transcription factor,ZmDREB1.7,that is highly expressed in sterile microspores at the large vacuole stage and activates the expression of mitochondria-encoded CMS gene orf355.Δpro,a weak allele of ZmDREB1.7 with the loss of a key unfolded protein response(UPR)motif in the promoter,partially restores male fertility of CMS-S maize.ZmDREB1.7 expression increases rapidly in response to antimycin A treatment,but this response is attenuated in theΔpro allele.Furthermore,we found that expression of orf355 in mitochondria activates mitochondrial retrograde signaling,which in turn induces ZmDREB1.7 expression.Taken together,these findings demonstrate that positive-feedback transcriptional regulation between a nuclear regulator and a mitochondrial CMS gene determines male sterility in maize,providing new insights into nucleus-mitochondria communication in plants.Senlin Xiao Jie Zang Yuanrong Pei Jie Liu Juan Liu Wei Song Zi Shi Aiguo Su Jiuran Zhao Huabang Chen 2020Molecular Plant2020,13,9:10
15Measurement Uncertainty Evaluation of Conicity Error Inspected on CMM显示文摘The cone is widely used in mechanical design for rotation, centering and fixing. Whether the conicity error can be measured and evaluated accurately will directly influence its assembly accuracy and working performance. According to the new generation geometrical product specification(GPS), the error and its measurement uncertainty should be evaluated together. The mathematical model of the minimum zone conicity error is established and an improved immune evolutionary algorithm(IIEA) is proposed to search for the conicity error. In the IIEA, initial antibodies are firstly generated by using quasi-random sequences and two kinds of affinities are calculated. Then, each antibody clone is generated and they are self-adaptively mutated so as to maintain diversity. Similar antibody is suppressed and new random antibody is generated. Because the mathematical model of conicity error is strongly nonlinear and the input quantities are not independent, it is difficult to use Guide to the expression of uncertainty in the measurement(GUM) method to evaluate measurement uncertainty. Adaptive Monte Carlo method(AMCM) is proposed to estimate measurement uncertainty in which the number of Monte Carlo trials is selected adaptively and the quality of the numerical results is directly controlled. The cone parts was machined on lathe CK6140 and measured on Miracle NC 454 Coordinate Measuring Machine(CMM). The experiment results confirm that the proposed method not only can search for the approximate solution of the minimum zone conicity error(MZCE) rapidly and precisely, but also can evaluate measurement uncertainty and give control variables with an expected numerical tolerance. The conicity errors computed by the proposed method are 20%-40% less than those computed by NC454 CMM software and the evaluation accuracy improves significantly.WANG Dongxia SONG Aiguo WEN Xiulan XU Youxiong QIAO Guifang 2016Chinese Journal of Mechanical Engineering2016,29,1:10
16Electrochemical performance of Ti_(3)C_(2)supercapacitors in KOH electrolyte显示文摘Two-dimensional(2D)carbide Ti_(3)C_(2)was synthesized by exfoliating Ti_(3)AlC_(2)in HF solution and used for supercapacitive performance investigation in 3 M KOH electrolyte.The specific surface area(SSA)of as-synthesized Ti_(3)C_(2)was 22.35 m^(2)/g.Ti_(3)C_(2)-based supercapacitor electrodes exhibited good energy storage ability and had a volumetric capacitance 119.8 F/cm^(3)at the current density of 2.5 A/g.Moreover,the addition of carbon black into Ti_(3)C_(2)powders greatly improved the performance of Ti_(3)C_(2)-based capacitors because carbon black restrained the preferred orientation of 2D Ti_(3)C_(2),providing fast ion transport channels,and in turn,decreasing electrical resistance from 16.7Ωto 3.5Ω.Yupeng GAO Libo WANG Zhengyang LI Yafei ZHANG Baolin XING Chuanxiang ZHANG Aiguo ZHOU 2015Journal of Advanced Ceramics2015,4,2:10
17Hypoxia Induces Transforming Growth Factor-β1 Gene Expression in the Pulmonary Artery of Rats via Hypoxia-inducible Factor-1α显示文摘现在的学习被承担调查组织缺氧的动态表示可诱导的 factor-1a (HTF-1a ) 和在老鼠的 hypoxia-inducedpulmonary 高血压的转变生长 factor-beta1 (TGF-beta1 ) 。意味着在组织缺氧的 7 d 以后显著地增加的肺的动脉的压力(mPAP ) ,这被发现。肺的动脉改变索引和恰好室的肥大在 hypoxia.HIF-1 高山的 14 d 以后变得明显哈染色的 mRNA 在控制,为 3 d 的组织缺氧和为 7 d 的组织缺氧是不太积极的,但是开始在组织缺氧的 14 d 以后显著地提高了,然后仍然是的马厩。在控制的 HIF-1alpha 蛋白质的表示是不太积极的,但是在肺的动脉的大桶集成通信适配器是起来调整的在肺的动脉的墙中的所有 hypoxic rats.TGF-beta1 mRNA 表达式的 intima 在组织缺氧的 14 d 以后显著地被增加,但是没在组织缺氧的 3 或 7 d 以后显示出明显的变化。在肺的大桶集成通信适配器外膜和大桶集成通信适配器媒介, TGF-beta1 蛋白质染色在控制老鼠是不太积极的,但是显著地在组织缺氧的 3 d 以后被提高,到达它在组织缺氧的 7 d 以后的山峰,然后在组织缺氧的 14 和 21 d 以后变弱。西方的弄污显示出层次在组织缺氧的 7 d 以后显著地增加了然后在高 level.TGF-beta1 蛋白质水平留下了的那 HIF-1alpha 蛋白质,到达它是显著地在 3 以后提高了组织缺氧的 d 在组织缺氧的 7 d 以后说,然后在组织缺氧的 14 和 21 d 以后减少。线性关联分析显示出那 HIF-1alpha mRNA , TGF-beta1 mRNA , TGF-beta1 蛋白质断然与 mPAP ,容器 morphometry 和权利被相关室的肥大 index.TGF-beta1 蛋白质( tunicaadventitia )否定地一起与 HIF-1alpha mRNA.Taken 被相关,我们的结果建议在在组织缺氧以后的 HIF-1alpha 和 TGF-beta1 表示的变化起一个重要作用老鼠的 导致inhypoxia 的肺的高血压。Yongliang JIANG Aiguo DAI Qifang LI and Ruicheng HU Depoptment of Respiratory Medicine,Hunan Institute of Gerontology,Hunan Province Geriatric Hospital,Changsha 410001,China 2007Acta Biochimica et Biophysica Sinica2007,39,1:10
18Climate Changes in the 21st Century over the Asia-Pacific Region Simulated by the NCAR CSM and PCM显示文摘The Climate System Model (CSM) and the Parallel Climate Model (PCM), two coupled global climate models without flux adjustments recently developed at NCAR, were used to simulate the 20th century climate using historical greenhouse gas and sulfate aerosol forcing. These simulations were extended through the 21st century under two newly developed scenarios, a business-as-usual case (BAU, CO2≈710 ppmv in 2100) and a CO2 stabilization case (STA550, CO2≈540 ppmv in 2100). The simulated changes in temperature, precipitation, and soil moisture over the Asia-Pacific region (10°-60°N, 55°-155°) are analyzed, with a focus on the East Asian summer monsoon rainfall and climate changes over the upper reaches of the Yangtze River. Under the BAU scenario, both the models produce surface warming of about 3-5℃ in winter and 2-3℃ in summer over most Asia. Under the STA550 scenario, the warming is reduced by 0.5-1.0℃ in winter and by 0.5℃ in summer. The warming is fairly uniform at the low latitudes and does not induce significant changes in the zonal mean Hadley circulation over the Asia-Pacific do- main While the regional precipitation changes from single CSM integrations are noisy, the PCM ensemble mean precipitation shows 10%-30% increases north of ~ 30°N and~10% decreases south of ~ 30°N over the Asia-Pacific region in winter and 10%-20% increases in summer precipitation over most of the region. Soil moisture changes are small over most Asia The CSM single simulation suggests a 30% increase in river runoff into the Three Gorges Dam, but the PCM ensemble simulations show small changes in theAiguo Dai, G.A. Meehl, W.M. Washington, and T.M.L. Wigley National Center for Atmospheric Research P.O. Box 3000, Boulder, CO 80307 ) Email: adai@ ucar. edu The National Center for Atmospheric Research is sponsored by the U S National Science Foundation. 2001Advances in Atmospheric Sciences2001,18,5:9
19Sequence stratigraphy, paleogeography, and coal accumulation regularity of major coal-accumulating periods in China显示文摘There are 9 major coal-accumulating periods during geological history in China,including the Early Carboniferous,Late Carboniferous-Early Permian,Middle Permian,Late Permian,Late Triassic,Early-Middle Jurassic,Early Cretaceous,Paleogene and Neogene.The coal formed in these periods were developed in different coal-accumulating areas(CAA)including the North China,South China,Northwest China,Northeast China,the Qinghai–Tibet area,and China offshore area.In this paper,we investigated depositional environments,sequence stratigraphy,lithofacies paleogeography and coal accumulation pattern of five major coal-accumulating periods including the Late Carboniferous to Middle Permian of the North China CAA,the Late Permian of the South China CAA,the Late Triassic of the South China CAA,the Early-Middle Jurassic of the North and Northwest China CAA,and the Early Cretaceous in the Northeast China CAA.According to distribution of the coal-bearing strata and the regional tectonic outlines,we have identified distribution range of the coal-forming basins,sedimentary facies types and coal-accumulating models.The sequence stratigraphic frameworks of the major coal-accumulating periods were established based on recognition of a variety of sequence boundaries.The distribution of thick coals and migration patterns of the coal-accumulating centers in the sequence stratigraphic framework were analyzed.The lithofacies paleogeography maps based on third-order sequences were reconstructed and the distribution of coal accumulation centers and coal-rich belts were predicted.Longyi Shao Xuetian Wang Dongdong Wang Mingpei Li Shuai Wang Yingjiao Li Kai Shao Chao Zhang Caixia Gao Daxiao Dong Aiguo Cheng Jing Lu Congwei Ji Di Gao 2020International Journal of Coal Science & Technology2020,7,2:9
20Petrogenetic contrastive studies on the Mesozoic early stage ore-bearing and late stage ore-barren granites from the southern Anhui Province显示文摘Yanshanian magmatisms are intensive in the southern Anhui Province and can be divided into early(152–137 Ma)and late(136–122 Ma) stages. A Yanshanian granitic zone was found to crop out along Qingshan to Changgai areas in the Tunxi district in Field investigation which has a genetic link with molybdenum multiple metal mineralization. To be a representative syenitic granite in the southern Anhui Province, the Huangshan pluton has not been found so far to have any genetic link with mineralization. Zircon LA-ICP-MS dating indicate that the four granitic bodies from the Qingshan-Changgai zone have concurrent formed ages from 140±4 to 141±2 Ma, belonging to the Yanshanian early stage magmatism. However, the Huangshan granite is dated to be 129±2 Ma, belonging to the Yanshanian late stage magmatism. The Qingshan-Changgai granites show high SiO2 and K2 O contents, low P2O5 contents and middle Al2O3 contents and are high-K calc-alkaline series metaluminum I-type granite. These rocks are characterized by enrichments in the large ion lithophile elements and light rare earth elements(REE), depletions in the high field-strength elements, and middle degree negative anomalies of Eu, geochemical features of arc or continent crustal derived magma affinities. These rocks have 87Sr/86Sr(t) ratios from 0.7120 to 0.7125, εNd(t) values from.7.24 to.4.38 and zircon εHf(t) values of.4.4 to 6.7, similar to that of the coeval ore-bearing granodiorites in the southern Anhui Province. Integrated geochemical studies indicate that the Yanshanian ore-bearing granodiorites were formed by partial melting of the Meso-Neoproterozoic accreted thickened low crust. Meanwhile, the Qingshan-Changgai granites were formed through a AFC process of plagioclase+amphibole+Shangxi Group of magmas that formed the ore-bearing granodiorites. The Huangshan granites are characterized by high SiO2 and K2 O contents, moderate Al2O3 contents, seagull shape REE distributed pattern and distinct Eu negative abnormities. Comparing with the Qingshan-Changgai granites, the Huangshan granites show more Ba, Sr, P,and Ti negative abnormities with no Nb and Ta depletions and are high-K calc-alkaline series metaluminum A-type granite. εHf(t)values of the Huangshan granites are from.6.6 to.1.2, similar to that of the early stage ore-bearing granodiorites, indicating that they were also formed by anatexis of the Meso-Neoproterozoic accreted crust, but their magma sources might be residual granulitic crust which ever underwent Yanshanian early stage I-type intermediate-acid magma extraction. Comparing studies on the two stages granites indicate that the early stage granites derived from a relative thickened low crust under a lower temperature condition. Their magma sources were Meso-Neoproterozoic accreted crust which enriched in ore-forming materials and further became more enriched through processes of magma AFC evolution. However, the late stage A-type granites originated from relative shallow crust under a higher temperature condition. Their magma source was depleted in ore-forming materials due to the early stage magma extraction and thus had weak ore-forming capacity. From early to late stage, the magmatisms tectonic setting translated from post-orogenic to anorogenic and the later corresponded to a back-arc extensional setting as increase of the slab subducted angle of the Paleo-Pacific plate.YAN Jun HOU TianJie WANG AiGuo WANG DeEn ZHANG DingYuan WENG WangFei LIU JianMin LIU XiaoQiang LI QuanZhong 2017Science China Earth Sciences2017,60,11:9
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