塔里木盆地中部志留-泥盆系沉积构造背景

我国陆上最深的钻井塔参 1井位于塔里木盆地中央隆起 ,井深 72 0 0m ,在井深 3742～ 40 0 1m钻遇志留 泥盆系碎屑岩 2 5 9m ,包括下志留统 1 2 5m ,上泥盆统 1 34m。在该段岩心采样 2 3块 (下志留统 1 5块 ,上泥盆统 8块 ) ,其全岩和微量元素地球化学分析表明 ,塔参 1井的志留 泥盆系碎屑岩均为稳定大陆克拉通内部的沉积 ,物源可能来自其底部以前震旦纪花岗岩为代表的古老陆壳基底。

塔里木盆地巴楚—麦盖提地区志留—泥盆系油气成藏规律

塔里木盆地巴楚—麦盖提地区以寒武—奥陶系海相碳酸盐岩为烃源岩,志留—泥盆系三角洲-滨岸砂岩为储层,潮坪环境形成的致密泥岩为盖层,形成了断裂型生储盖组合,具有较好的油气勘探前景。通过对研究区志留—泥盆系沉积相带展布、断层发育特征以及古隆起和古斜坡的综合研究,结合烃源岩排烃及已发现油气特征,认为巴楚—麦盖提地区志留—泥盆系油气成藏规律主要受沉积和构造的共同控制,在二叠纪末,寒武—奥陶系烃源岩排烃期已经形成的单斜构造或斜坡带,被长期活动断层沟通了寒武—奥陶系烃源岩的志留—泥盆系储层分布区易于形成油气藏。区内有利油气成藏区带主要为康2-方1井之间的断裂带与玉1-BK8-巴5井之间的斜坡带,可能发育的油气藏类型为岩性油气藏和构造-岩性复合油气藏。

塔里木盆地志留-泥盆系克拉通盆地气候层序发育模式研究

在对存在多个地层划分分区的塔里木盆地志留-泥盆系地层进行了岩性地层的和层序地层的对比和划分基础上。并且其中在划分层序地层时融入了可容空间变化因素的影响。对存在于塔里木盆地志留-泥盆系台盆区的气候转变进行了深入分析,总结了气候在可容空间变化中的作用和以气候为主控因素的层序发育模式,提出了"气候层序发育模式",并且分析了气候层序发育过程中气候对层序发育的控制过程。

新疆东准卡拉麦里碰撞带南缘志留-泥盆系生物地层研究新进展

通过精细的生物地层学工作,从时代和生物群组合入手,重新厘定了志留-泥盆系各时期的岩石地层单位时序,在卡拉麦里碰撞带南缘建立较为合理的地层序列。研究认为,该区中-上志留统白山包组第一段可建立扭图瓦贝(Tuvaestrophiasp.)-薄扭贝(Leptostrophiasp.)-原始戟贝(Protochonetes sp.)生物群组合,第二段可建立大型图瓦贝(Tuvaella gigantea Tschernyschew)-近平无洞贝(相似种)(Atrypacf.depressa Zhang)-盖嘴贝(Stegerhynchus sp.)生物群组合,第三段可建立大型图瓦贝(Tuvaella gigantea Tschernyschew)-拉氏图瓦贝(Tuvaella rackovskii Tschernyschew)-扁平薄皱贝(Leptaenacf.depressa)-新疆高面石燕(Tannuspirifer xinjiangensis Zhang)生物群组合。上志留统老沟组可建立小鸽小无洞贝(Atrypellacf.columbella Barrande)-单褶准无窗贝(Athyrisinacf.uniplicata Grabau)-安嘎西盖嘴贝(Stegerhynchus angaciensis Tschernyschew)生物群组合。顶志留统-下泥盆统红柳沟组可建立肥厚灌木孔珊瑚(Steatothamnopora sp.)-沟孔珊瑚(Striatopora sp.)-拟灌木孔珊瑚(Parathamnoporasp.)动物群组合,下-中泥盆统卡拉麦里组可建立中华薄腔贝(相似种)(Leptocoeliacf.sinicaSu)-肠状珊瑚(未定种)(Enterolasmasp.)-双锥珊瑚(未定种)(Diplochonesp.)动物群组合,上泥盆统克安库都克组出现先鳞木(未定种)(Prelepidondronsp.)。志留-泥盆系生物地层单位时序的建立,对研究卡拉麦里碰撞带及志留-泥盆系地层具有重要作用。

关于地质时间本质的思考

通过对新疆北部志留—泥盆系界线的讨论,以及对乌吐布拉克组的地层归属问题的探讨,和国际志留—泥盆系界线的理论根据的浅析,提出地质时间本质的含义.

Why a World Journal of Gastroenterology?

When a new medical journal is launched, the reaction is frequent: Why? Do we have already so much to read that we feel overwhelmed? But, the litmus test of a good new journal is: Does it find its way into the reading time of physicians and medical scientists? The new World Journal of Gastroenterology has the opportunity to pass that litmus test.

关于地质时间本质的思考

通过对新疆北部志留—泥盆系界线的讨论 ,以及对乌吐布拉克组的地层归属问题的探讨 ,和国际志留—泥盆系界线的理论根据的浅析 ,提出地质时间本质的含义。

Optimization of environmental maintenance system used in a refuge chamber

Mine refuge chambers are used to shield miners who fail to escape from the mine when incidents occur. Environment maintaining system plays a key role in stabilizing thermal environment of a mine refuge chamber against heat emitted from metabolism and transferred from outside. The safety and comfort of refugees are closely related to the environment maintaining system design. In order to improve the comfort of refugees, optimization on the environment maintaining system has been done based on the previous work. To evaluate the environment of the chamber, eight volunteers were involved into the experiment. Under close observation and safety protection, they lived in a heat-isolated test chamber for 106 hours. The volunteers were asked to maintain low level of activities to simulate refugees＇ situation. It shows that the environment maintaining system worked well and the temperature, relative humidity and emitted harmful air content such as CO2 and CO were all kept in the safety level, and no discomfort was felt by volunteers at all.

Spatio-temporal Compensation Based Object Detection for Video Surveillance Systems

Moving object detection in video surveillance is an important step. This paper addresses an automatic object detection algorithm based on spatio-temporal compensation for video surveillance. Temporal difference of the pairs of two frames with a k-frame distance is utilized to obtain coarse object masks. Usually, object regions in these coarse masks have discontinuous boundaries and some holes. Region growing with the distance constraint is proposed to compensate these coarse object regions in spatial domain, followed by filling holes. The added distance constraint can prevent object regions from growing infinitely. The proposed filling holes method is simple and effective. To solve the temporarily stopping problem of moving objects, temporal compensation is proposed to compensate the object mask by utilizing temporal coherence of moving objects in temporal domain. The proposed detection algorithm can extract moving objects as completely as possible. Experimental results have successfully demonstrated the validity of the proposed algorithm.

Experimental Studies on Debris Flow with Logs Focusing on Specific Weight Difference of Log Species

There are many experimental approaches,field investigations and numerical calculations for movements of woods in a clear water and debris flow.However,kinematic conditions for accumulated logs and the interactions between a main flow and logs have not been fully evaluated.Mitigations for woods need taking into account the characteristics of tree species such as conifer and broad-leaf trees and of shapes such as root swells and crown.In the present study,we focus on the differences in specific weight of conifer and broad-leaf trees with some moisture in a sediment-water mixture flow with narrow flow width,and consider that conifer and broad-leaf tree are floating and submerged solid phase,respectively.Flume tests are conducted in steady flow of clear and debris flow over a rigid bed in order to evaluate conifer and broad-leaf tree movement in clear water and debris flow.Experimental data indicates that dimensionless transverse diffusion coefficient can be 0.1 to 0.4 and 0.3 to 0.9 in flow direction.Those diffusive characteristics seem to be independent of Reynolds number and Froude number,but dependent of bed slope,i.e.,gravity,though detailed considerations are needed to discuss about flow characteristics such as spatial eddy structures,momentum transfer induced by interactions of logs and so on.

Effects of Res on proliferation and apoptosis of human cervical carcinoma cell lines C33A,SiHa and HeLa

Objective:To explore the effects of Res on the proliferation and apoptosis of human cervical cancer cell lines C33A,SiHa and HeLa.Methods:Inhibition rates by different concentrations of Res were calculated using MTT method.Apoptosis rates and cell cycles were measured and examined by flow cytometry(FCM).Morphological configuration of apoptotic cells were observed under the fluorescence microscope.Results:The growth of cancer cells was inhibited by Res of varied concentrations in a time-and dose-dependent manner(P<0.01).The cells showed characteristic apoptosis morphologic changes under fluorescence microscope.Res exerted no effects on cell cycles.Conclusion:Res inhibits the growth of cervical cell lines C33A,SiHa and HeLa by inducing cell apoptosis in a time-and dose-dependent manner.

Application Research on Standardization of Sign Design in Landscape Architecture

To illustrate the irregular and non-standardized sign design in the landscape architecture,itis necessary to research the history of landscape architecture and the function of signs.Design of signs inlandscape architecture is a practical system.The guidance system is an essential part of it,and aestheticand art is second to the guidance system.Likewise,aesthetic and art could not highlight the achievement ofart and personality,and design of signs could not separate from the guidance system.In China,nowadays,standardization of sign design in landscape architecture should break down language and cultural barriers,as well as bringing International style and carrying Chinese characteristics.

Identification of TM9SF2 as a Candidate of the Cell Surface Marker Common to Breast Carcinoma Cells

OBJECTIVE We aimed identification of cell surface molecules, which might serve as diagnostic biomarkers or useful targets for therapies, in breast cancer. METHODS We developed unique DNA microarray coupled with spherical self-organizing map （sSOM） analysis to characterize cells and tissues by the cell surface markers. In the microarray 1,797 probes for human genes coding membrane bound proteins were spotted. With this microarray the gene expression profiles of eight breast carcinoma cell lines were compared to identify the genes that were commonly expressed in breast carcinomas but not in normal cells. RESULTS The gene expression profiles of sSOM from the eight breast carcinoma cell lines were successfully distinguished from that of normal breast tissue derived cells suggesting the presence of genes of interest, sSOMon the data extensively filtered revealed several candidate genes, of which expression was significant in carcinoma cells but low in normal cells. Finally, TM9SF2 was nominated through validations of PCR procedures together with CD24 and ErbB3, which are known breast carcinoma markers. TMgSF2 expression was further confirmed by immunological staining. Interestingly, TMgSF2 was found to be expressed in all the cell lines evaluated while CD24 and ErbB3 were not in all of the carcinoma cells, supporting their relationship in sSOM. Although physiological significance of TMgSF2 is unknown yet, siRNA treatment significantly inhibited the growth of MDA- MB-231 cells. CONCLUSION We propose TM9SF2 as a novel and useful diagnostic marker as well as a potential molecular target specific to breast carcinoma cells covering wide range of breast cancer.

APPLICATION OF ACUPUNCTURE AND MOXIBUSTION FOR KEEPING SHAPE

On the basis of TCM diferentiation, the authors have treated 359 adult female cases of non-obesity with undesirable body shape by combined application of body acupuncture and moxibustion and auricular acupuncture, and achieved quite good remoulding and orthopedic results, suggesting that acupuncture and moxibustion can very effectively regulate the somatotypic indexes of body weight, circumference of the chest, loin, hip and thigh, the ratio of the loin to hip, sebum thickness, obesity degree, body mass index and body fat percentage of the cases in the overweight group and orthopedic groups 1,2. It is therefore concluded that acupuncture and moxibustion is a good therapy for obtaining a graceful body shape.

Strategy to differentiate autoimmune pancreatitis from pancreas cancer

Autoimmune pancreatitis (AIP) is a newly described entity of pancreatitis in which the pathogenesis appears to involve autoimmune mechanisms. Based on histological and immunohistochemical examinations of various organs of AIP patients, AIP appears to be a pancreatic lesion reflecting a systemic "IgG4-related sclerosing disease". Clinically, AIP patients and patients with pancreatic cancer share many features, such as preponderance of elderly males, frequent initial symptom of painless jaundice, development of new-onset diabetes mellitus, and elevated levels of serum tumor markers. It is of uppermost importance not to misdiagnose AIP as pancreatic cancer. Since there is currently no diagnostic serological marker for AIP, and approach to the pancreas for histological examination is generally difficult, AIP is diagnosed using a combination of clinical, serological, morphological, and histopathological features. Findings suggesting AIP rather than pancreatic cancer include:fluctuating obstructive jaundice; elevated serum IgG4 levels; diffuse enlargement of the pancreas; delayed en- hancement of the enlarged pancreas and presence of a capsule-like rim on dynamic computed tomography; low apparent diffusion coefficient values on diffusion-weighted magnetic resonance image; irregular narrowing of the main pancreatic duct on endoscopic retrograde cholangiopancreatography; less upstream dilatation of the main pancreatic duct on magnetic resonance cholangiopancreatography, presence of other organ involvement such as bilateral salivary gland swelling, retroperitoneal fibrosis and hilar or intrahepatic sclerosing cholangitis; negative work-up for malignancy including endoscopic ultrasound-guided fine needle aspiration; and steroid responsiveness. Since AIP responds dramatically to steroid therapy, accurate diagnosis of AIP can avoid unnecessary laparotomy or pancreatic resection.

Research and implementation of a personalized book recommendation algorithm --Taking the library of Jinan University as an example

Abstract： Taking the basic data and the log data of the various businesses of the automation integrated management system of the library in Jinan University as the research object this paper analyzes the internal relationship between books and between the books and the readers, and designs a personalized book recommendation algorithm, the BookSimValue, on the basis of the user collaborative filteringtechnology. The experimental results show that the recommended book information produced by this algorithm can effectively help the readers to solve the problem of the book information overload, which can bring great convenience to the readers and effectively save the time of the readers＇ selection of the books, thus effectively improving the utilization of the library resources and the service levels.

唐周元长墓志考释

周元长墓志,一九五六年在北京市西城区旃檀寺西街出土,缺盖,志现藏首都博物馆。志系青白石,高、宽均为六十三厘米,厚十二厘米。正书,二十五行。行四十至四十四字不等,陇西李掖撰并书。志四侧刻花,唐开成三年(838年)刻石。周元长为唐幽州官吏,曾参加平定横海李同捷战役,志文可补唐史及丰富北京史料。今就志文考释如下:一、志文详元长三代衔加皇字,即皇唐或皇朝。

Biostratigraphy and geography of the Ordovician-Silurian Lungmachi black shales in South China

Based on the new material of seven Ordovician-Silurian boundary sections investigated recently, together with previously published data, we analyze the temporal and spatial distributions of the Lungmachi black shales, a key petroleum source bed widely distributed in South China. The Lungmachi black shales range in age from the Normalograptus persculptus Biozone of the uppermost Ordovician to the Spirograptus guerichi Biozone of the lower Telychian, and ten graptolite biozones can be recognized within this unit. The basal and upper contacts of the Lungmachi black shales are diachronous. The basal contact ranges from the N. persculptus to the C. cyphus biozones, a span of five graptolite biozones over two stages. The upper contact ranges from the D. pectinatus-M. argenteus Biozone to the Spirograptus guerichi Biozone, which spans four graptolite biozones over two stages. The Yichang Uplift resulted in the formation of the Hunan-Hubei Submarine High in the border area of Hubei, Hunan, and Chongqing. This is supported by a break in sedimentation in this area spanning all or part of the Hirnantian, and in many areas extending into the underlying Katian and overlying Rhuddanian. Comparison of the distribution of the Katian to Rhuddanian strata in this area indicates a growth and subsequent reduction in area of the Hunan-Hubei Submarine High particularly in the Hirnantian to early Rhuddanian. This may partly represent the influence of the process of formation and melting of ice sheet in Ordovician South Pole and consequent sea level change.

Tracking shallow marine red beds through geological time as exemplified by the lower Telychian (Silurian) in the Upper Yangtze Region,South China

Marine red beds occur frequently in China through geological time.Despite their complex environments,the red beds are found in three depositional settings:1) oceanic,deep water,as in the Upper Cretaceous of southern Tibet;2) outer shelf,deeper water,as in the Lower-Middle Ordovician of South China;and 3) inner shelf,shallow water,as in the Silurian and Triassic in South China.The Silurian marine red beds are recurrent in the lower Telychian,upper Telychian,and upper Ludlow.This paper is to document the marine nature of the lower Telychian red beds (LRBs) in the Upper Yangtze Region and to discuss the spatial and temporal distribution of the LRBs and their depositional environments.The LRBs are best developed on the north side of the Cathaysian Oldland,which can be interpreted as the source area.It is inferred that they were deposited during a marine regression,characterized by the lack of upwelling,low nutrition and organic productivity with a decrease of biodiversity and a high rate of sedimentation.The iron-rich sediments may have been transported by rivers on the oldland into the Upper Yangtze Sea,as rates of deposition were rapid enough to counteract normal reducing effect around sediment-water interface.The LRBs are different from the off-shore,deeper water red beds of lower Telychian in Avalonia and Baltica and further from the oceanic,deep water red beds of Upper Cretaceous in southern Tibet chiefly in palaeogeographic settings,biotic assemblages and marine environments.

Evolution and paleogeography of Eospirifer(Spiriferida,Brachiopoda) in Late Ordovician and Silurian

Eospirifer,the oldest known genus of the spiriferide group(Brachiopoda),first appeared on the Zhe-Gan Platform of South China paleoplate during late Katian(Late Ordovician) represented by E.praecursor.It survived the end-Ordovician mass extinction,and reappeared on the Upper Yangtze Platform of South China paleoplate by the end of Ordovician near the upper part of the Normalograptus persculptus Biozone.Starting from the beginning of Silurian,Eospirifer experienced some morphological innovations and expanded its geographical distribution substantially.It reached its species diversity acme and the widest geographic distribution in Wenlock(middle Silurian),with the diversity hotspots in Laurentia,Avalonia,and Baltica.Various shell size frequency curves of E.praecursor under different paleogeographic settings suggest that this pioneer species of Eospirifer,with several macroevolutionary novelties,adopted a range of life strategies to adapt to the changing environments during early spiriferide evolution.There are also some morphological macroevolutionary trends during the evolutionary history of Eospirifer from Late Ordovician to the end of Silurian,such as the ever enlarging shell sizes and the width/length ratios from late Katian to Wenlock,but decreasing apparently of both parameters from Wenlock to Pridoli.