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1Distribution and genesis of the anomalously high porosity zones in the middle-shallow horizons of the northern Songliao Basin显示文摘High-quality reservoirs occur in the middle-shallow horizons of the northern Songliao Basin. The distribution and genesis of their anomalously high porosity zones were studied using measured porosities, examination of ordinary thin sections and blue epoxy resin-impregnated thin sections and by SEM. The results show that there are three anomalously high porosity zones at the depth of 450-900 m, 1,300-1,900 m, 2,050-2,350 m respectively, named zone i, zone ii and zone iii from top to bottom. Horizontally, zone i and zone ii are distributed all over the basin except in the Southeastern Uplift, while zone iii is only distributed in the Central Depression. Zone i was formed by meteoric water leaching as well as organic acid dissolution. Zones ii and iii were dominantly formed by organic acid dissolution. Additionally, clay mineral transformation generating H+ and hydrocarbon emplacement retarding the cementation of sandstones are also important for the formation of zones ii and iii.Meng Yuanlin Liang Hongwei Meng Fanjin Wu Heyong Wang Cheng Xiu Hongwen Zhang Anda Li Yaguang Guo Rixin 2010Petroleum Science2010,7,3:29
2Conodont Evidence for the Age of the Panxian Fauna,Guizhou,China显示文摘Detailed conodont analysis on the Yangjuan-Chupiwa section,Xinmin,Panxian County,Guizhou Province,revealed a conodont sequence including four Anisian conodont zones,viz.Nicoraella germanica Zone,Nc.kockeli Zone,Paragondolella bifurcata Zone and Neogondolella constricta Zone.These zones indicate that the upper Guanling Formation consists of strata from the Bithynian to the Illyrian of the Anisian.Appearance of Neogondolella constricta suggests that the Anisian/Ladinian boundary might be in the overlying Yangliujing Formation.The Panxian Fauna with well-preserved marine reptile and fish fossils is proved to belong to the lower part of the conodont Nc.kockeli Zone in the studied area.Thus,the age of the Panxian Fauna could be the early Pelsonian of the Anisian.SUN Zuoyu SUN Yuanlin HAO Weicheng JIANG Dayong 2006Acta Geologica Sinica(English Edition)2006,80,5:19
3Vibration analysis and control technologies of hydraulic pipeline system in aircraft:A review显示文摘Vibrations in aircraft hydraulic pipeline system,due to multi-source excitation of high fluid pressure fluctuation and serious vibration environment of airframe,can cause the pipeline system vibration failures through overload in engineering field.Controlling the vibrations in hydraulic pipeline is a challenging work to ensure the flight safety of aircraft.The common vibration control technologies have been demonstrated to be effective in typical structures such as aerospace structures,shipbuilding structures,marine offshore structures,motor structures,etc.However,there are few research literatures on vibration control strategies of aircraft hydraulic pipeline.Combining with the development trend of aircraft hydraulic pipeline system and the requirement of vibration control technologies,this paper provides a detailed review on the current vibration control technologies in hydraulic pipeline system.A review of the general approaches following the passive and active control technologies are presented,which are including optimal layout technique of pipeline and clamps,constrained layer damping technique,vibration absorber technique,hydraulic hose technique,optimal pump structure technique,and active vibration control technique of pipeline system.Finally,some suggestions for the application of vibration control technologies in engineering field are given.Peixin GAO Tao YU Yuanlin ZHANG Jiao WANG Jingyu ZHAI 2021Chinese Journal of Aeronautics2021,34,4:19
4Biodiversity and Sequence of the Middle Triassic Panxian Marine Reptile Fauna,Guizhou Province,China显示文摘中间的三叠纪的 Panxian 动物志是一个物理标记和在结束以后跟随早三叠纪的停滞阶段的三叠纪的海洋的生态系统的快速的恢复的代表性的记录 -- 二叠的集体扑灭。十海洋的爬行动物税一在 Guanling 形成的上面的成员从 1.82 2.10 m 厚的含化石的水平被发现了,它能在石块爬行动物的 stratigraphic 分布上通过分析被细分进三张海洋的爬行动物床。更低的爬行动物床产出 sauropterygians Placodus inexpectatus 江等, 2008 并且 Lariosaurus hongguoensis 江等, 2006, ichthyopterygians Xinminosaurus catactes 江等, 2008 并且 Phalarodon cf。Phalarodon fraasi Merriam, 1910,与 Mixosaurus panxianensis 江等联系了, 2006,代表 durophagous 的优势的一个阶段税一。在这张床上,大完全的骨骼可以在长度到达多达 2.3 m,并且岩相和 chemostratigraphic 分析在底部,以及升起的海水平附近与 oxic 水环境显示一个相对深的碳酸盐平台。中间的爬行动物床产出 sauropterygian Nothosaurus yangjuanensis 江等, 2006 并且祖龙 Qianosuchus mixtus 李等, 2006,把等与 Mixosaurus panxianensis 江联系了, 2006。在这张床上的石块被它的大头针 cering 出牙和大全面身体尺寸描绘,与最大可能在长度超过 3 m。这张床可能在底部附近与相对缺氧的状况代表最深的盆的一时间。上面的爬行动物床产出 sauropterygians Wumengosaurus delicatomandibularis 江等, 2008, Keichousaurus sp, protorosaur Dinocephalosaurus 东方人是李, 2003,并且 ichthyopterygian Mixosaurus panxianensis 江等, 2006。在这张床上,爬虫税一由吸喂描绘了出现,并且最长是不到 1 m。这张床对应于减少的水深度的一个时期。JIANG Dayong Ryosuke MOTANI HAO Weicheng Olivier RIEPPEL SUN Yuanlin Andrea TINTORI SUN Zuoyu Lars SCHMITZ 2009Acta Geologica Sinica(English Edition)2009,83,3:17
5New primitive ichthyosaurian (Reptilia,Diapsida) from the Middle Triassic of Panxian,Guizhou,southwestern China and its position in the Triassic biotic recovery显示文摘一张新原始 ichthyopterygian Xinminosaurus catactes 情报。et sp。nov。在 Panxian 从 Guanling 形成的中间的三叠纪的上面的成员基于一架完全的骨骼被树立,贵州,西南的中国。它在它的出牙,尺骨,腕骨和 tarsals 有特别地导出的人物的一间套房。它类似于在保留伸长的手足骨头的原始 ichthyopterygians。新税在上和多种水兵在 Panxian 动物志的爬行动物是中间的三叠纪的关於生命的放射的物理标记。这动物志的详细研究将在差异,迁居和中间的三叠纪的 ichthyopterygians 的 paleobiogeographic 亲密关系上供应必要知识。Dayong Jiang Ryosuke Motani Weicheng Hao Lars Schmitz Olivier Rieppel Yuanlin Sun Zuoyu Sun 2008Progress in Natural Science:Materials International2008,18,10:13
6Multi-drug Resistance and Characteristic of Integrons in Shigella spp.Isolated from China显示文摘Objective To investigate the characteristic of integrons and the relationship between integrons and antimicrobial resistance in Shigella spp. Methods Ninety Shigella strains (83 S. flexneri and 7 S. sonnei) were isolated from the stools of patients in China. Susceptibility to 8 antimicrobials was tested for all isolated strains. PCR, RFLP and sequencing analysis of integrons were applied to all of them. Results High prevalence of multi‐drug resistance (95.6%) was identified. Of the isolates 79 (87.8%) carried integrase genes of class 1 integron (3.3%), class 2 integron (10.0%) or both (74.4%). No intI3 was detected in the tested isolates. The prevalence of intI2 was significantly higher in isolates with multi‐drug resistance to at least 3 antibiotics than that in isolates with resistance to 2 and less antibiotics (P<0.05). Gene cassettes dfrA17‐aadA5, dfrA12‐orfF‐aadA2 of class 1 integron and dfrA1‐sat1‐aadA1 of class 2 integron were identified. Conclusion The class 2 integron may play a role in the emergence of multi‐drug resistance in Shigella spp.ZHU JingYuan DUAN GuangCai YANG HaiYan FAN QingTang XI YuanLin 2011Biomedical and Environmental Sciences2011,24,1:11
7Guanling Biota: A Marker of Triassic Biotic Recovery from the end-Permian Extinction in the Ancient Guizhou Sea显示文摘After a slow recovery from the end-Permian extinction during the Early Triassic and rapid radiation in the Middle Triassic, evolution of organisms reached a new peak phase in the Late Triassic. The Guanling Biota from the Wayao Member (conodont Paragondolella polygnathiformis Zone), Falang Formation, Xinpu, Guanling County, Guizhou Province, southwestern China corresponds to this peak that marks the full recovery from the end-Permian extinction of marine ecosystems. The biota is of high diversity, containing well preserved and completely articulated skeletons of vertebrates comprising marine reptiles, fishes, and invertebrates including crinoids, ammonites, bivalves, and other fossils, and is one of the best examples of marine ecosystem records in life history. The fossil marine reptiles and crinoids are most significant in this biota, especially the marine reptiles, which provide an important link between the Triassic Pacific and Tethys, and between Triassic basal forms and the Jurassic-Cretaceous marine top predators. The most remarkable fossils are the large completely articulated ichthyosaur skeletons up to and more than 10 m, and the first recorded thalattosaurs and placodonts in China. Following our review, of the 17 named reptilian taxa the eight listed here are considered to be valid: three ichthyosaurs (Qianichthyosaurus zhoui Li, 1999; Guizhouichthyosaurus tangae Cao and Luo in Yin et al., 2000, Guanlingsaurus liangae Yin in Yin et al., 2000), three thalattosaurs (Anshunsaurus huangguoshuensis Liu, 1999, Xinpusaurus suni Yin in Yin et al., 2000, Xinpusaurus kohi Jiang et al., 2004), and two placodonts (Sinocyamodus xinpuensis Li, 2000, Psephochelys polyosteoderma Li and Rieppel, 2002). Mixosaurus guanlingensis Cao in Yin et al., 2000 might be a junior synonym of Qianichthyosaurus zhoui Li, 1999, and Cymbospondylus asiaticus Li and You, 2002 and Panjiangsaurus epicharis Chen and Cheng, 2003 might be junior synonyms of Guizhouichthyosaurus tangae Cao and Luo in Yin et al., 2000. It needs to re-describe the holotypes after a complete preparation for clarifying the taxonomic status of Typicusichthyosaurus tsaihuae Yu in Yin et al., 2000, Xinpusaurus bamaolinensis Cheng, 2003, Neosinosaurus hoangi (Zhou in Yin et al., 2000), Wayaosaurus geei Zhou in Yin et al., 2000, Wayaosaurus bellus Zhou in Yin et al., 2000 and Placochelys ? minutus Yin and Luo in Yin et al., 2000.JIANG Dayong Ryosuke MOTAN LI Chun HAO Weicheng SUN Yuanlin SUN Zuoyu Lars SCHMITZ 2005Acta Geologica Sinica(English Edition)2005,79,6:11
8Stress and deformation analysis on deep surrounding rock at different time stages and its application显示文摘Based on the characteristics of the deep circular tunnel, the surrounding rock was divided into three regions: the cracked region, the plastic region and the viscoelastic region. The process of rock stress deformation and change was divided into three stages after the roadway excavation. By using the elastic-plastic mechanics theory, the analytical solutions of the surrounding stress and displacement at different stages and the radii of cracked and plastic regions were formulated. We additionally explained the surrounding rock stress and displacement which appeared in practical project. Simultaneously, based on the problem which emerged from a mine in Xuzhou during the excavating process of rock roadway's transport, we got the theoretical solutions for the stress and displacement in the process of rock roadway's excavation and considered that the broken area of rock roadway was largely loosing circle. The results indicate that according to the rheological characteristics of surrounding rock, in the primeval excavation of rock roadway, we should increase the length of anchor bolt and cooperate it with anchor nets cable-U steel supporting frame. In addition, when the deformation rate of the surrounding rock is descending after the 15 days' excavation, we should use the ''three anchor'' supporting method (anchor bolt spray, anchor note and anchor rope) and set aside about 20 cm as the reserved deformation layer.Li Ming Mao Xianbiao Yu Yuanlin Li Kai Ma Chao Peng Yan 2012International Journal of Mining Science and Technology2012,22,3:9
9A New Perleidiform(Actinopterygii,Osteichthyes)from the Middle Anisian(Middle Triassic)of Yunnan,South China显示文摘从 Pelsonian 的二个完全的标本(中间的 Anisian,中间三叠纪) Luoping,云南省,华南被指一个新 actinopterygian 类, Luopingichthys 情报。nov,并且归功于到特别基于古怪 premaxillary 颚的建筑群的典型 synapomorphy 的 perleidiform 家庭 Polzbergidae,即,在 premaxillary 之间的熔化并且沿着 antero 背面的边缘颚颚。新税在上不同于家庭, Felberia 和 Stoppania 的另外的深身体的代表,在它的纺锤形或深的纺锤形的身体形状;有短下文轨道的过程的塑造镰刀的 preopercular;在肛门鳍的底的修改规模的缺乏;短底的背面的鳍;几乎没装饰的规模;并且变瘦前面的牙齿。从中间在 Ctenognathichthys hattichi 上基于对税的完模标本的描述三叠纪( Ladinian ) Prosanto 形成,州 Graub ün 兽穴,东方瑞士,唯一的已知的标本,它显示出在 premaxillary 之间的一样的熔化并且颚,种的系统的位置被澄清并且税在上被建议是家庭 Polzbergidae 的一个进一步的代表,并且被转移到新类。SUN Zuoyu Andrea TINTORI JIANG Dayong Cristina LOMBARDO Marco RUSCONI HAO Weicheng SUN Yuanlin 2009Acta Geologica Sinica(English Edition)2009,83,3:9
10Mechanism underlying treatment of diabetic kidney disease using Traditional Chinese Medicine based on theory of Yin and Yang balance显示文摘The pathogenic mechanism of diabetic kidney disease(DKD) is complex. The development of DKD cannot be fully explained by a single mechanism.Traditional Chinese Medicine(TCM) has been applied extensively for the treatment of DKD in China.However, studying the mechanism of DKD using theories and methods that are appropriate for TCM characteristics and searching for theoretical bases for TCM clinical application are topics that still need to be explored and researched. Activation of the transforming growth factor(TGF)-β1/Smad and PI3 K/Akt/mTOR signaling pathways functions as a self-protection mechanism against renal microinflammation in DKD. However, the persistent abnormal overactivation of reactions causes secondary cell dysfunction, cell apoptosis, increased extracellular matrix(ECM) secretion, and eventually renal fibrosis. During this process, the dysregulation of self-balance among a variety of signaling pathways and the loss of self-feedback regulatory mecha-nisms downstream of these signaling pathways are critical causes of the occurrence and development of DKD. TCM may both inhibit the expression or activation of 'hyperactive' signaling pathways(NFB, Smad3, and PI3 K/Akt/mTOR) and increase the expression or activation of 'deficient' signaling pathways(Smad7 and PTEN) to restore balance to cells with an abnormal pathophysiological status and achieve the goal of DKD treatment.Piao Yuanlin Yin Dehai 2018Journal of Traditional Chinese Medicine2018,38,5:8
11An EGLN1 mutation may regulate hypoxic response in cyanotic congenital heart disease through the PHD2/HIF-1A pathway显示文摘Cyanotic congenital heart disease(CCHD),a term describing the most severe congenital heart diseases are characterized by the anatomic malformation of a right to left shunt.Although the incidence of CCHD are far less than the that of congenital heart diseases(CHD),patients with CCHD always present severe clinical features such as hypoxia,dyspnea,and heart failure.Chronic hypoxia induces hypoxemia that significantly contributes to poor prognosis in CCHD.Current studies have demonstrated that the prolyl-4-hydroxylase2(PHD2,encoded by EGLN1)/hypoxia-inducible factor-1A(HIF-1A)pathway is a key regulator of hypoxic response.Thus,we aim to assess the associations of single polymorphisms(SNPs)of the EGLN1 gene and hypoxic response in CCHD.A missense variant of EGLN1 c.380G>C(rs1209790)was found in 46 patients(46/126),with lower hypoxia incidence and higher rate of collateral vessel formation,compared with the wild type(P<0.05).In vitro experiments,during hypoxia,EGLN1 mutation reduced EGLN1 expression compared with the wild type,with higher HIF-1A,VEGF and EPO expression levels in the mutant.No difference in HK1 expression was observed between the mutant and wild type.CCHD patients with c.380G>C showed improved response to hypoxia compared with the wild-type counterparts.The EGLN1 c.380G>C mutation improves hypoxic response through the PHD2/HIF-1A pathway,which may provide a molecular mechanism for hypoxic response in CCHD.The effects of the EGLN1 c.380G>C mutation on CCHD prognosis deserve further investigation.Yuanlin Zhou Na Ouyang Lingjuan Liu Jie Tian Xupei Huang Tiewei Lu 2019Genes & Diseases2019,6,1:7
12Atrypid Brachiopods from the Upper Devonian Wangchengpo Formation(Frasnian)of southern Guizhou,China—Extinction Patterns in the Frasnian of South China显示文摘The Wangchengpo Frasnian section of Dushan County contains two atrypid brachiopod assemblages. The lower is characterized by the Atryparia (Costatrypa) dushanensis fauna that appears at the base of the Hejiazhai Member approximately in the falsiovalis to transitans conodont zones; the upper is characterized by the Radiatrypa yangi fauna, which appears in the Lujiazhai Member approximately correspondent with the hassi to Upper rhenana conodont zones. Atrypid brachiopods, together with other brachiopods from the Dushan section show that the Hejiazhai Member is of Frasnian age. Preliminary analyses of Frasnian atrypid brachiopods from sections of South China indicate that there are nine genera and subgenera including Atryparia (Costatrypa), Kyrtatrypa, Spinatrypa, Isospinatrypa, Spinatrypina, Iowatrypa, Desquamatia (Desquamatia), Desquamatia (Seratrypa), and Radiatrypa. Atrypid species diversity did not change much through the Frasnian. On a regional scale in South China, most atrypid species went extinct prior to the Frasnian/Famennian boundary. At any specific locality or section, these atrypids became extinct about 20–40 m below the Frasnian/Famennian (F/F) boundary, within the linguiformis conodont Zone, marking this as the major extinction level. Three new atrypid species are described: Atryparia (Costatrypa) dushanensis, Iowatrypa pseudobodini, and Radiatrypa yangi.MA Xueping Paul COPPER SUN Yuanlin LIAO Weihua 2005Acta Geologica Sinica(English Edition)2005,79,4:7
13Serum interleukin-10 levels and adverse events in patients with acute coronary syndrome: a systematic review and meta-analysis显示文摘Liu Jun Jia Yanjun Li Xiaolin Xu Ruixia Zhu Chenggang Guo Yuanlin Wu Naqiong Li Jianjun 2014Chinese Medical Journal2014,,1:6
14Genetic analysis and fine mapping of an enclosed panicle mutant esp2 in rice (Oryza sativa L.)显示文摘The phenomenon of panicle enclosure in rice is mainly caused by the shortening of uppermost internode.Elucidating the molecular mechanism of panicle enclosure will be helpful for solving the problem of panicle enclosure in male sterile lines and creating new germplasms in rice.We acquired a monogenic recessive enclosed panicle mutant,named as esp2 (enclosed shorter panicle 2),from the tissue culture progeny of indica rice cultivar Minghui-86.In the mutant,panicles were entirely enclosed by flag leaf sheaths and the uppermost internode was almost completely degenerated,but the other internodes did not have obvious changes in length.Genetic analysis indicated that the mutant phenotype was controlled by a recessive gene,which could be steadily inherited and was not affected by genetic background.Apparently,ESP2 is a key gene for the development of uppermost internode in rice.Using an F 2 population of a cross between esp2 and a japonica rice cultivar Xiushui-13 as well as SSR and InDel markers,we fine mapped ESP2 to a 14-kb region on the end of the short arm of chromosome 1.According to the rice genome sequence annotation,only one intact gene exists in this region,namely,a putative phosphatidylserine synthase gene.Sequencing analysis on the mutant and the wild type indicated that this gene was inserted by a 5287-bp retrotransposon sequence.Hence,we took this gene as a candidate of ESP2.The results of this study will facilitate the cloning and functional analysis of ESP2 gene.GUAN HuaZhong DUAN YuanLin LIU HuaQing CHEN ZhiWei ZHUO Ming ZHUANG LiJun QI WenMing PAN RunSen MAO DaMei ZHOU YuanChang WANG Feng WU WeiRen 2011Chinese Science Bulletin2011,56,14:6
15Analysis of Review Helpfulness Based on Consumer Perspective显示文摘When consumers make purchase decisions, they generally refer to the reviews generated by other consumers who have already purchased similar products in order to get more information. Online transaction platforms provide a highly convenient channel for consumers to generate and retrieve product reviews. In addition,consumers can also vote reviews perceived to be helpful in making their decision. However, due to diverse characteristics, consumers can have different preferences on products and reviews. Their voting behavior can be influenced by reviews and existing review votes. To explore the influence mechanism of the reviewer, the review,and the existing votes on review helpfulness, we propose three hypotheses based on the consumer perspective and perform statistical tests to verify these hypotheses with real review data from Amazon. Our empirical study indicates that review helpfulness has significant correlation and trend with reviewers, review valance, and review votes. In this paper, we also discuss the implications of our findings on consumer preference and review helpfulness.Yuanlin Chen Yueting Chai Yi Liu Yang Xu 2015Tsinghua Science and Technology2015,20,3:6
16Is seawater geochemical composition recorded in marine carbonate? Evidence from iron and manganese contents in Late Devonian carbonate rocks显示文摘Iron and manganese are the important redoxsensitive elements in the ocean. Previous studies have established a series of paleo-depositional redox proxies based on the form and content of iron in sedimentary rocks(e.g., degree of pyritization, FeHR/FeT, Fe/Al). These proxies were developed and applied on siliciclastic-rich marine sediments. Although marine carbonate rocks are generally considered to preserve the geochemical signals of ancient seawater, neither Fe nor Mn content in marine carbonate rocks(Fecarb, Mncarb) has been independently used as a proxy to quantify environmental cues in paleo-oceans. Both Fe and Mn are insoluble in oxic conditions(Fe_2O_3, Fe(OH)_3,MnO_2), while their reduced forms(Fe^(2+) and Mn^(2+)) are soluble. Therefore, oxic seawater should have low concentrations of dissolved Fe^(2+)and Mn^(2+), and accordingly carbonate rocks precipitated from oxic seawater should have low Fecarband Mncarb, and vice versa. To evaluate whether Fecarband Mncarbcan be used to quantify oxygen fugacity in seawater, we measured Fecarband Mncarbof Upper Devonian marine carbonate rocks collected from nine sections in South China. Fecarbof intraplatform basin samples wassignificantly higher than that of shelf samples, while shelf and basin samples had comparable Mncarb. The modeling result indicates that the dramatic difference in Fecarbcannot be explained by variation in oxygen fugacity between the shelf and basin seawater. Instead, both Fecarband Mncarb appear to be more sensitive to benthic flux from sediment porewater that is enriched in Fe^(2+)and Mn^(2+). Porewater Fe^(2+)and Mn^(2+)derive from bacterial iron and manganese reduction; flux was controlled by sedimentation rate and the depth of the Fe(Mn) reduction zone in sediments, the latter of which is determined by oxygen fugacity at the water–sediment interface. Thus, high Fecarbof the basin samples might be attributed to low sedimentation rate and/or low oxygen fugacity at the seafloor. However, invariant Mncarbof the shelf and basin samples might be the consequence of complete reduction of Mn in sediments. Our study indicates that marine carbonate rocks may not necessarily record seawater composition, particularly for benthic carbonate rocks. The influence of benthic flux might cause carbonate rocks' geochemical signals to deviate significantly from seawater values. Our study suggests that interpretation of geochemical data from carbonate rocks, including carbonate carbon isotopes, should consider the process of carbonate formation.Zhe Wang Wen Guo Ting Nie Haoran Ma Tianzheng Huang Yuanlin Sun Bing Shen 2019Acta Geochimica2019,38,2:5
17Modeling study of source contributions and emergency control effects during a severe haze episode over the Beijing-Tianjin-Hebei area显示文摘In February 2014, the Beijing-Tianjin-Hebei(BTH) area experienced a weeklong episode of heavy haze pollution. Cities such as Beijing(BJ) and Shijiazhuang(SJZ) issued heavy pollution alerts for the first time and took emergency control measures. This study employed the Nested Air Quality Prediction Modeling System(NAQPMS) to simulate and analyze the three-dimensional structure of the source contributions of PM2.5 in the BTH area during this pollution episode and quantitatively assessed the effects of the emergency control measures. The results showed that during the polluted period(February 19–26), surface PM2.5 mainly originated from local sources(48%–72%). In the entire BTH area, southern Hebei(SHB) represented the largest internal contribution(33%), while the main external contributions came from Shandong(SD)(10%) and Henan(HN)(4%). Vertically, the local contribution was constrained below the near-ground layer, and rapidly decreased with altitude. The regional transport path from SHB and Shanxi(SX) to BJ appeared at 0.5–1.5 and 1.5–2.5 km, with contributions of 32%–42% and 13%–27%, respectively. The non-local source regions for the BTH area were SD below 1 km and mainly SX and HN above 1 km. Compared to the non-polluted period(February 27–28), the contribution from regional transport increased during the polluted period, indicating the key role of regional transport in the pollution formation. The emergency control measures had a relatively large effect on NOx and SO2 concentrations, but a limited effect on PM2.5. The stronger regional transport during the polluted period may have weakened the effects of the local emergency control measures. These results indicated that a coordinated emission control should be implemented not only over the BTH area but also over its surrounding provinces(e.g. SD, HN).Huansheng Chen Jie Li Baozhu Ge Wenyi Yang Zifa Wang Si Huang Yuanlin Wang Pingzhong Yan Jianjun Li Lili Zhu 2015Science China Chemistry2015,58,9:5
18New species of Saurichthys(Actinopterygii:Saurichthyidae)from Middle Triassic(Anisian)of Yunnan Province,China显示文摘Saurichthys dawaziensis sp。nov,从 Gejiu 形成的第三个成员(中间的 Anisian 三叠纪) 在 Luoping 的附近,云南省,一对媒介小 -- 大小的 saurichthyid 鱼。它被与一个分支在楔形的帕拉和上颚上渗透感觉运河在的传出假鳃的动脉描绘尖。新种类是在没有骨化的脊骨,有一个相对狭窄的眼窝后部的区域,短 preopercular,巩膜戒指的单个骨化,在骨盆的鳍之间的小血液的拱门和肛门鳍比更低的三叠纪的种类导出的更多,并且当 quadratojugal 不在时。它是比在在神经拱门在 prae-zygapophyses 和 post-zygapophyses 的奇鳍,和存在有 fringing fulcra 和众多的片断的中间、上面的三叠纪的 Saurichthys 更原始的。与脊椎的列和类的奇鳍有关的一些解剖变化也被讨论。WU Feixiang SUN Yuanlin HAO Weicheng JIANG Dayong XU Guanghui SUN Zuoyu Andrea TINTORI 2009Acta Geologica Sinica(English Edition)2009,83,3:5
19Fine mapping of cisc(t),a gene for cold-induced seedling chlorosis,and identification of its candidate in rice显示文摘The seedlings of indica rice cultivar Dular are susceptible to chlorosis under low temperature conditions.Our previous studies indicated that low temperature-induced seedling chlorosis is controlled by a recessive gene,located between SSR markers RM257 and RM242,on the long arm of chromosome 9.We temporarily named the gene cisc(t).Using a large F2 population derived from a cross between Dular and the japonica cultivar Lemont,which displays a normal green color at low temperatures,cisc(t)was fine mapped to within a 12-kb interval.There is only one annotated gene in this interval,which encodes a pentatricopeptide repeat(PPR)protein.Sequence analysis indicated that 8 bases were deleted at the 60th base in the Dular allele,resulting in a frame-shift mutation and loss of function of the gene.This is consistent with the chlorosis mutant phenotype of Dular.In addition,previous studies have shown that many chlorosis mutants of seedlings are related to PPR proteins.Hence,we presume that the PPR gene is the candidate for cisc(t).LAN Tao WANG Bin LING QiuPing XU ChunHua TONG ZhiJun LIANG KangJing DUAN YuanLin JIN Jing WU WeiRen 2010Chinese Science Bulletin2010,55,27:5
20Cephalopods of the “Falang Formation” (Triassic) from Guanling and Zhenfeng Counties, Guizhou Province, China显示文摘The 'Falang Formation' of western Guizhou was previously called the 'Halobia Bed' and considered to beLadinian in age. It was subdivided upward into the Zhuganpo, Laishike and Longchang members based on ammonites andthe Trachyceras multitubertulatum Zone of the Longchang Member was put in the Lower Carnian. Here in the presentpaper, 4 genera and 9 species of ammonites and 1 nautiloid genus and species collected from the upper part of the 'FalangFormation' (i.e. the Wayao Formation used in this paper, equivalent to the Laishike Member from Guanling and Zhenfengcounties are described. The geological and geographical distribution of these cephalopods, as well as the co-existingconodonts, put the Wayao Formation to the late early Carnian.HAO Weicheng, SUN Yuanlin, JIANG Dayong, YANG Shouren and WANG Xinping Geological Museum, Peking University, Beijing 100871 2003Acta Geologica Sinica(English Edition)2003,77,4:5
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