mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Localization of epididymal protease inhibitor in adult rat and its transcription profile in testis during postnatal development

To investigate the expression pattern of rat Eppin (epididymal protease inhibitor; official symbol Spinlw1), we detected mRNA transcripts and subsequent protein translation of Eppin in several sorts of tissues by RT-PCR and western blotting. Then immunohistochemistry was performed for more detailed observation. The testicular transcription level was monitored by real-CR throughout postnatal development. We found that rat Eppin was specifically expressed in the testis and epididymis. The testicular transcription was slight in neonatal (1-day) and infantile stages (5-, 7- and 10-day). It increased sharply thereafter, with maximum expression level (about 38-fold compared with that of 1-day old rat) detected in prepubertal stage (15-day). Then a slightly declined but stable level (about 20-fold compared with that of 1-day old rat) was kept in pubertal-early adult (30-day) and adult (60-day) stages of postnatal maturation. In the adult rat, EPPIN protein was mainly localized in the elongated spermatids and epididymal epithelial cells. Sperm in the epididymal duct were all covered with EPPIN and its level kept constant during incubation under conditions used to achieve capacitation. Its stage-specific expression in the testis suggests that EPPIN may be important during spermatogenesis especially for the spermatid elongation. The abundant production of epididymal EPPIN indicated indirectly that it might play a role in the function of the epididymis.
Proteome analysis of round-headed and normal spermatozoa by 2-D fluorescence difference gel electrophoresis and mass spectrometry

Globozoospermia is a severe form of teratozoospermia characterized by round-headed spermatozoa with an absent acrosome, an aberrant nuclear membrane and midpiece defects. Globozoospermia is diagnosed by the presence of 100% round-headed spermatozoa on semen analysis, and patients with this condition are absolutely infertile. The objective of this study was to investigate the differences in protein expression between human round-headed and normal spermatozoa. Two-dimensional (2-D) fluorescence difference gel electrophoresis (DIGE) coupled with mass spectrometry (MS) was used in this study. Over 61 protein spots were analysed in each paired normal/round-headed comparison, using DIGE technology along with an internal standard. In total, 35 protein spots identified by tandem mass spectrometry (MS/MS) exhibited significant changes (paired t-test, P < 0.05) in the expression level between normal and round-headed spermatozoa. A total of nine proteins were found to be upregulated and 26 proteins were found to be downregulated in round-headed spermatozoa compared with normal spermatozoa. The differentially expressed proteins that we identified may have important roles in a variety of cellular processes and structures, including spermatogenesis, cell skeleton, metabolism and spermatozoa motility.
冲蚀地形上悬跨海底管线涡激振动试验研究

为了给海底管线服役期间的安全评估提供科学依据,基于水弹性相似关系,对海底管线服役期间常见水流环境条件下,冲蚀地形上悬跨弹性海底管线涡激振动进行试验研究.采用粘贴于管线内壁的应变片测量振动过程中的应变.通过与平底地形上相关研究结果进行对比分析发现:冲蚀地形上悬跨海底管线涡激振动强度与振动频率均受到冲蚀地形的影响;振动强度随水流折减速度的变化比平底地形要快,在相对冲坑长(悬跨长)L/D为20与L/D为35时涡激振动强度的差别较平底地形上悬跨管线要小得多;管线垂向振动频率随冲蚀地形冲坑长度的减少而增大;冲蚀地形上悬跨管线周围的斯特劳哈尔数St在0.21左右.比相同雷诺数下平底地形上悬跨管线周围St数略大.
畸形多生牙伴右下颌第一前磨牙罕见异位阻生1例

1临床资料病人男,24岁,右下颌后牙自发疼痛5 d就诊.口腔检查:上、下颌牙列轻度拥挤,右下颌第三磨牙近中阻生(无对(牙合)),(牙合)面龋洞较深,探痛,冷热刺激痛,无叩痛、夜间自发痛病史,考虑为牙髓炎.在右下第一前磨牙的正常位置有一牙冠结构独特的牙齿,具有5个牙尖,形如一把香蕉(图1).
唐家山堰塞湖大水沟泥石流发育特征及堵江危害性评价

大水沟位于唐家山上游侧,"5.12"地震前为一条小山洪冲沟,震后由于沟域内崩塌、滑坡发育,形成极为丰富的松散物源,具备发生泥石流的所有条件,也成为唐家山堰塞湖成功泄水处理后,仍对堰塞湖正常利用起控制作用的严重地质灾害隐患点之一.通过现场实地调查,在查明沟域内松散物源分布及稳定性基础上,结合6.14泥石流发育状况,系统对大水沟泥石流发育特征及其动力学特性,尤其对在不同降雨频率下可能形成的泥石流规模进行分析研究,并对唐家山堰塞湖泄水口部位堵江规模、持续时间、溃决方式及其可能带来的危害性进行评价.分析计算结果已被2008年9月24日发生的百年一遇的泥石流所证实.
露天采矿爆破振动对砌体结构破坏效应预测的Fisher判别模型及应用

应用Fisher判别分析理论并结合工程实际特点,从爆破振动特征参量和砌体结构自身特性这2个方面出发,选取峰值质点振动速度(PPV)、爆破振动主频率、主频率持续时间、灰缝强度、圈梁构造柱、房屋高度、屋盖形式和砖墙面积率8个影响因素作为判别因子,建立爆破振动对砌体结构破坏效应预测的Fisher判别分析模型.将该方法应用到湖北一露天采场爆破振动对砌体结构破坏效应预测问题中,利用现场实测的108组数据进行训练和检验,回判估计的误判率为0.083,通过求解判别函数,认为峰值质点振动速度为最重要的判别指标,其后依次为圈梁构造柱、屋盖形式、砖墙面积率、房屋高度、爆破振动主频率、主频率持续时间和灰缝强度,可以为同类工程在选取爆破振动对砌体结构破坏效应的判别指标方面提供参考.利用其他12组现场数据作为预测样本进行测试,预测结果与实际情况吻合较好.研究表明,该方法回判估计的误判率低,判别性能良好,是爆破振动对砌体结构破坏效应预测的一种有效新方法,可以在实际工程中进行推广应用.
高拱坝坝址区初始地应力场的二次计算

建立小湾水电站坝址区大范围有限元模型,考虑工程附近较大区域内的地形、地势和河流大转弯等因素,采用遗传算法与有限单元法相结合的联合反演方法,对坝址区初始地应力场进行一次反演;然后,考虑坝址区附近主要地质构造,建立坝基开挖松弛效应分析的小范围有限元模型,基于子模型方法,通过在一次反演模型中插值获得小范围模型的位移边界条件,对初始地应力场进行二次计算.研究结果表明:软弱地质构造对初始地应力场的反演有一定影响,一次反演中不连续结构面附近应力计算值与实测值相差较大;考虑软弱地质构造后的二次计算改善了一次反演所得的初始地应力场精度,大部分测点应力计算值更接近实测值,相对误差也逐渐减小,可将其应用于后续坝基开挖松弛效应分析中;反演结果同时也表明所采用的研究方法是可行的,对类似工程具有参考意义.
不同应力路径下煤样变形破坏过程声发射特征的试验研究

利用RMT–150B岩石力学试验机对义马耿村具有冲击倾向性煤样进行常规单轴、三轴和三轴卸围压试验,研究在不同应力路径下煤样变形破坏过程中的声发射特征.试验结果表明,煤样在不同应力路径下加载变形破坏过程中产生的声发射特征有所差异.常规单轴压缩过程中各个阶段均有不同程度的声发射事件,与三轴筒内单轴压缩相比,声发射累计计数和能量明显偏大,破坏瞬时的声发射计数和能量大致相当;常规三轴压缩试验时,在围压作用下煤样屈服前声发射事件较少,进入屈服阶段声发射事件逐渐趋于活跃,计数和能量大幅度增大,标志煤样破坏前兆,破坏瞬时声发射计数和能量达到最大值;三轴卸围压试验时,在卸围压前煤样处于弹性阶段声发射事件较少,随围压逐渐降低,由正应力提供的摩擦力不断减小,煤样内部材料强度相对较低逐步屈服破坏形成微裂纹.屈服前期产生少量声发射事件,屈服后期声发射事件逐渐趋于活跃,计数和能量大幅度增大,标志煤样卸围压破坏前兆,破坏瞬间计数和能量同时达到最大值,与常规三轴压缩相比,声发射计数更大,能量则更高,表明三轴卸围压煤样破坏时更加强烈;常规单轴压缩煤样破坏产生的声发射累计计数和累计能量明显偏大,三轴筒内单轴、常规三轴压缩以及三轴卸围压试验时,声发射累计计数和能量大致相同,没有明显差异.
瓦斯压力对突出煤瓦斯渗流影响试验研究

以典型煤与瓦斯突出矿井松藻煤电集团打通一矿7#突出煤层制备的型煤试件为研究对象,利用自行研制的三轴渗透仪,进行固定轴压和围压情况下的变瓦斯压力突出煤瓦斯渗透试验.试验结果表明:在轴压和围压固定的情况下,突出煤样的瓦斯渗透速度随着瓦斯压力的增大而增大.突出煤样瓦斯渗透速度随着瓦斯压力的增加,呈幂函数规律变化.随着瓦斯压力的增加,突出煤样两端的瓦斯压力梯度增大率会逐渐减小,最终趋近于零.而突出煤样的瓦斯渗透速度增加率则随着瓦斯压力的增大而减小,最终趋近于一恒定值附近.研究成果对提高突出矿井瓦斯抽采率有重要意义.
变参数蠕变损伤本构模型及其工程应用

考虑岩体的流变损伤劣化效应,建立一个变参数的蠕变损伤本构模型,该模型将岩体流变力学参数看作是非定常的,认为岩体流变参数随时间逐渐弱化,从而直观反映材料的损伤劣化过程.推导该蠕变损伤本构模型的三维差分表达式,并通过C++与FISH编程对有限差分软件FLAC3D进行二次开发,实现本构模型的程序化.将该模型应用于大岗山水电站坝基边坡工程,基于现场压缩蠕变试验,反演坝区岩体的蠕变损伤参数,通过坝区边坡开挖三维蠕变损伤稳定性计算,获得对边坡开挖设计和施工具有指导意义的建议和结论.
经结膜Müller肌分离术矫正甲状腺相关眼病上睑回缩

甲状腺相关眼病(TAO)是常见的眼眶疾病,患者常由于眼睑回缩、眼球突出、眼眶软组织水肿、暴露性角膜炎而致眼部不适及视力下降.上睑回缩是该病常见的体征之一,与交感神经支配的Müller肌收缩有关,患者呈凝视状态,严重影响外观,还可由于睑裂闭合不全、角膜结膜暴露导致疼痛和视力减退.以往矫正上睑回缩的方法包括胍乙啶滴眼液点眼、注射肉毒杆菌A毒素、Müller肌切除术、提上睑肌延长术等.我们应用Müller肌分离术矫正TAO引起的上睑回缩,报告如下.
Effect of particle size on the microstructure and thermal conductivity of Al/diamond composites prepared by spark plasma sintering

Spark plasma sintering (SPS) was used to fabricate Al/diamond composites. The influence of diamond particle size on the microstrueture and thermal conductivity (TC) of composites was investigated by combining experimental results with model prediction. The results show that both composites with 40 μm particles and 70 μm particles exhibit high density and good TC, and the composite with 70 μm particles indi-cates an excellent TC of 325 W·m~(-1)·K~(-1). Their TCs lay between the theoretical estimated bounds. In contrast, the composite with 100 μm particles demonstrates low density as well as poor TC due to its high porosity and weak interfacial bonding. Its TC is even considerably less than the lower bound of the predicted value. Using larger diamond particles can further enhance thermal conductive performance only based on the premise that highly dense composites of strong interfacial bonding can be obtained.
Influence of rare earth promoters on the performance of Ni/Mg(Al)O catalysts for hydrogenation and steam reforming of toluene

CeO_(2-), La_2O_(3-), and ZiO_2-promoted Ni/Mg(Al)O catalysts synthesized by hydrotalcite-type precursors have been investigated with respect to catalytic activity and carbon formation in the hydrogenation and steam reforming of toluene as a model tar compound. X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) specific surface area and H_2-temperature programmed reduction (TPR) were used to observe the characteristics of the prepared catalysts. The carbon formation and its amount on the used catalysts were examined by transmission election microscope (TEM), scanning electron microscope (SEM) and thermogravimetric (TG). The trend of catalytic activity as derived from the experimental results followed the order: Ni-Ce>Ni-La>Ni-Zr>Ni. The catalyst modified with CeO_2 exhibited the highest catalytic perform-ance and had good carbon resistance in the hydrogenation and steam reforming of toluene. A toluene conversion of 96.8%, a CH_4 yield of 45.2% and a CO yield of 50.4% have been achieved. The addition of promoters led to better dispersion of nickel species and higher interac-tion nickel-support, which were favorable for increasing the catalytic activity and effectively preventing carbon formation.
An H~1-Galerkin Nonconforming Mixed Finite Element Method for Integro-Differential Equation of Parabolic Type

H~1-Galerkin nonconforming mixed finite element methods are analyzed for integro-differential equation of parabolic type.By use of the typical characteristic of the elements,we obtain that the Galerkin mixed approximations have the same rates of convergence as in the classical mixed method,but without LBB stability condition.
Two-Dimensional Riemann Problems for the Compressible Euler System

Riemann problems for the compressible Euler system in two space dimensions are complicated and difficult, but a viable alternative remains missing. The author lists merits of one-dimensional Riemann problems and compares them with those for the current two-dimensional Riemann problems, to illustrate their worthiness. Two-dimensional Riemann problems are approached via the methodology promoted by Andy Majda in the spirits of modern applied mathematics; that is, simplified model is built via asymptotic analysis, numerical simulation and theoretical analysis. A simplified model called the pressure gradient system is derived from the full Euler system via an asymptotic process. State-of-the-art numerical methods in numerical simulations are used to discern smallscale structures of the solutions, e.g., semi-hyperbolic patches. Analytical methods are used to establish the validity of the structure revealed in the numerical simulation. The entire process, used in many of Majda's programs, is shown here for the two-dimensional Riemann problems for the compressible Euler systems of conservation laws.
重庆地区汉族人群FcRL3基因rs945635多态性与Graves病的关联

Graves病(GD)是一种常见的自身免疫性疾病,其发病机制包括遗传易感和环境诱发两大因素.GD的发病具有明显的家族聚集性,双生子流行病学研究显示,同卵双生子的发病一致率远高于异卵双生子,说明遗传因素在GD的发病中起到很重要的作用[1].FcRL3的结构与经典的FcγRs有较高的同源性,这些受体均是参与免疫反应较强的候选基因,在自身免疫性疾病的发病机制中起重要作用.
卵巢原发性小细胞癌(肺型)1例

患者女,71岁,腹胀20天,加重4天人院.B超提示:盆腔实质性占位,盆腔大量积液.CT示:盆腔内膀胱后方肿物,考虑恶性占位,来自卵巢可能性大,腹水及盆腔多发肿大淋巴结;肺未见异常.全消化道钡餐造影示:胃黏膜增粗,余未见异常.肝、胆超声诊断:脂肪肝、肝囊肿.胸部X片示:双肺纹理增多,未见实质性病变.
透射电镜EMTP组织处理仪制样方法

对透射电镜制样国内许多学者及研究人员在标本的取材时间、包埋、染色等环节进行了有效的探索~([1～3]).透射电镜制样周期较长,在长时间制样过程中,传统手工制样较容易吸收空气中的水份,从而影响标本的脱水和包埋剂的浸透,并最终影响电镜下的观察结果.我们采用德国LeicaEMTP组织处理仪进行制样,主要在标本脱水与浸透环节.并与常规制样进行比较,具体如下.
泛发性发疹性透明细胞汗管瘤

患者男,23岁.主诉:全身出现肤色丘疹3年.现病史:3年前.无明显诱因患者全身突然出现许多肤色丘疹,无瘙痒等自觉症状,未就诊及治疗.此后丘疹数目逐渐增多.为明确诊断.于2005年6月2日来我院就诊.患者既往体健,否认有糖尿病史,无药物和食物过敏史.
人高速泳动族蛋白质B1对单核细胞分泌TNF-α的影响

高速泳动族蛋白质Bl(high mobility group box 1,HMGB1)作为一种重要的炎症后期的介导因子,在脓毒症的发生、发展中起重要作用~([1]).我们采用重组人HMGB1刺激人单核巨噬细胞系THP-1,观察其对单核细胞分泌TNF-α的作用.
解剖学实验考试课件的开发及题库的构建

Authorware是一款优秀的程序制作软件,本教研室利用该软件,制作了系统解剖学实验考试课件,该课件具有建立题库、随机抽题、时间控制、自动序号、自动运行、密码保护等特点,具有PowerPoint无法比拟的优势,在实际应用中取得了较好的效果,现将制作过程及经验体会总结如下.
成立组织学与胚胎学科研兴趣小组,培养学生的创新能力

大学生创新能力的培养非常重要,总结多年的教学经验及科研实践,笔者深深体会到,组织学与胚胎学虽然只是入门的医学基础课,但里面却包含很多研究方法、研究思路,怎么把这种研究方法和研究思路贯穿到教学过程中,落实到医学本科大学生创新能力培养上这是需要研究的重要课题之一.如何在临床医学本科学生中进行以科研课题为主线的探究型、创新型教学活动,让学生自己实施科学实验过程,开展创新性学习,是当前对学生能力培养的重大举措,为此本教研室组织了科研兴趣小组,培养了学生分析问题、解决问题和获取新知识的能力,同时也大大提高了学生学习的主动性和兴趣.
Pollutants removal and simulation model of combined membrane process for wastewater treatment and reuse in submarine cabin for long voyage

A laboratory scale test was conducted in a combined membrane process (CMP) with a capacity of 2.91 m~3/d for 240 d to treat the mixed wastewater of humidity condensate,hygiene wastewater and urine in submarine cabin during prolonged voyage.Removal performance of COD,ammonia nitrogen (NH4~+-N),turbidity and anionic surfactants (LAS) was investigated under different conditions.It was observed that the effluent COD,NH4~+-N,turbidity and LAS flocculated in respective ranges of 0.19-0.85 mg/L,0.03-0.18 mg/L,0.0-0.15 NTU and 0.0-0.05 mg/L in spite of considerable fluctuation in corresponding influent of 2120-5350 mg/L,79.5-129.3 mg/L,110-181.1NTU and 4.9-5.4 mg/L.The effluent quality of the CMP could meet the requirements of mechanical water and hygiene water according to the class I water quality standards in China (GB3838-2002).The removal rates of COD,NH4~+-N,turbidity and LAS removed in the MBR were more than 90%,which indicated that biodegradation is indispensable and plays a major role in the wastewater treatment and reuse.A model,built on the back propagation neural network (BPNN) theory,was developed for the simulation of CMP and produced high reliability.The average error of COD and NH4~+-N was 5.14% and 6.20%,respectively and the root mean squared error of turbidity and LAS was 2.76% and 1.41%,respectively.The results indicated that the model well fitted the laboratory data,and was able to simulate the removal of COD,NH4~+-N,turbidity and LAS.It is also suggested that the model proposed could reflect and manage the operation of CMP for the treatment of the mixed wastewaters in submarine.
Early stage toxicity of excess copper to photosystem II of Chlorella pyrenoidosa-OJIP chlorophyll a fluorescence analysis

Acute toxicity of excess Cu on the photosynthetic performance of Chlorella pyrenoidosa was examined by using chlorophyll a fluorescence transients and JIP-test after exposure to elevated Cu concentrations for a short period of time.High Cu concentration resulted in a significant suppression in photosynthesis and respiration.The absorption flux (ABS/RC) per PSⅡ reaction center increased with increasing Cu concentration,but the electron transport flux (ET_0/RC) decreased.Excess Cu had an insignificant effect on the trapping flux (TR_0/RC).The decline in the efficiency with which a trapped exciton can move an electron into the electron transport chain further than QA- (ψ_o),the maximal quantum yield of primary photochemistry (φP_o),and the quantum yield of electron transport (φE_o) were also observed.The amount of active PSⅡ reaction centers per excited cross section (RC/CS) was also in consistency with the change of photosynthesis when cells were exposed to excess Cu concentration.JIP-test parameters had a good linear relationship with photosynthetic O_2 evolution.These results suggested that the decrease of photosynthesis in exposure to excess Cu may be a result of the inactivation of PSⅡ reaction centers and inhibition of electron transport in the acceptor side.
Effects of nonionic surfactant Triton X-100 on the laccase-catalyzed conversion of bisphenol A

The laccase-catalyzed conversion of bisphenol A (BPA) in aqueous solutions was studied in the absence and presence of nonionic surfactant Triton X-100.It was found that the addition of Triton X-100 into the reaction system increased the conversion of BPA especially near the critical micelle concentration (CMC) of Triton X-100.Also it was found that the stability of laccase was greatly improved in the presence of TritonX-100.Studies on the endogenous fluorescence emission of laccase indicated that there existed an interaction between Triton X-100 and laccase,which was beneficial to the folding and stabilization of laccase.The binding of Triton X-100 to the laccase surface also mitigated the inactivation effect caused by the free radicals and polymerization products.Under otherwise identical conditions,a lower dosage of laccase was needed for the higher conversion of BPA in the presence of Triton X-100.
Chemical composition and size distribution of secondary organic aerosol formed from the photooxidation of isoprene

Photooxidation of isoprene leads to the formation of secondary organic aerosol (SOA).In this study,the chemical composition of SOA formed from OH-initiated photooxidation of isoprene has been investigated with gas chromatography/mass spectrometry (GC/MS) and a home-made aerosol time-of-flight mass spectrometer (ATOFMS).Sampling particles generated in a home-made smog chamber.The size distribution of SOA particles was detected by a TSI 3321 aerodynamic particle size spectrometer in real time.Results showed that SOA created by isoprene photooxidation was predominantly in the form of fine particles,which have diameters less than 2.5 μm.The obtained mass spectra of individual particles show that products of the OH-initiated oxidation of isoprene contain methyl vinyl ketone,methacrolein,formaldehyde,and some other hydroxycarbonyls.The possible reaction mechanisms leading to these products were also discussed.
农村村庄现状与和谐村庄建设——以河南省商丘市为例

我国农村的发展进程明显落后于城市,严重影响了和谐新农村建设的顺利进行.出现的主要问题是:规划设计滞后,宅基地使用权转让率低且不规范;宅基闲置、村庄盲目扩张,空心村现象、土地浪费现象严重;人、畜、禽杂居,村庄脏乱差,饮水安全问题严重.通过政策扶持转、变农民思想观念、提高村民素质,加强村庄的科学规划引导、加强村庄综合整治、建立健全宅基地使用权转让规章制度等措施可解决上述问题,促进社会主义和谐村庄建设.
广西主要茶区土壤重金属的监测与污染评价

通过测定广西主要茶区乐业、罗城、苍梧、横县等地茶园士壤重金属铅(Ph)、镉(Cd)和铜(Cu)的含量,并结合茶园土壤重金属评价标准和茶园土壤污染分级标准.采用单因子污染指数法和Nememw污染指数法进行污染评价.结果表明:广西主要茶区土壤中这3种重金属含量均较低,Cd和Cu平均含量都处在一级水平,Pb平均含量除1个地区处在二级水平外,其余3个地区均处于一级水平,Cd和Cu单闪子污染指数和综合污染指数均小于1.000,Pb的单因子污染指数和综合污染指数都在0.264～1.120之间.广西主要茶区(茶园土壤环境质量总体良好,符合有机茶园土壤环境质量标准,可因地制宜发展有机茶产业.
Thermal Characteristics of the Embankment with Crushed Rock Side Slope to Mitigate Thaw Settlement Hazards of the Qinghai-Tibet Railway

Permafrost (perennially frozen ground) appears widely in the Golmud-Lhasa section of the Qinghai-Tibet railway and is characterized by high ground temperature (≥-1℃) and massive ground ice. Under the scenarios of global warming and human activity, the permafrost under the railway will gradually thaw and the massive ground ice will slowly melt, resulting in some thaw settlement hazards, which mainly include longitudinal and lateral cracks, and slope failure. The crushed rock layer has a thermal semiconductor effect under the periodic fluctuation of natural air. It can be used to lower the temperature of the underlying permafrost along the Qinghai-Tibet railway, and mitigate the thaw settlement hazards of the subgrade. In the present paper, the daily and annual changes in the thermal characteristics of the embankment with crushed rock side slope (ECRSS) were quantitatively simulated using the numerical method to study the cooling effect of the crushed rock layer and its mitigative ability. The results showed that the ECRSS absorbed some heat in the daytime in summer, but part of it was released at night, which accounted for approximately 20% of that absorbed. Within a year, it removed more heat from the railway subgrade in winter than that absorbed in summer. It can store approximately 20% of the "cold" energy in subgrade. Therefore, ECRSS is a better measure to mitigate thaw settlement hazards to the railway.
Tectonic-Hydrocarbon Accumulation of Laoyemiao Region in the Nanpu Sag, Bohai Bay Basin

This paper aims to gain insight into Laoyemiao (LYM) tectonic features and utilizes the tectonic-hydrocarbon accumulation model by integrated analysis tectonic controls on suitable reservoirs, trap styles, and hydrocarbon migration. On the basis of 3-D seismic data interpretation and the Xi'nanzhuang (XNZ) Fault geometry analysis, it has been assessed that the LYM tectonics is essentially a transverse anticline produced by flexure of the XNZ Fault surface and superimposed by Neocene north-east-trending strike-slip faults. Transverse anticline is found to exert controls both on major sediment transportation pathways and sedimentary facies distribution. Fan-delta plains that accumulated on the anticline crest near the XNZ Fault scrap and fan-delta front on the anticline front and the upper part of both limbs slumps on synclines and the Linque subsag. In combination with the reservoir properties, suitable reservoirs are predicted in the subfacies of subaqueous distributary channel and mouth bar deposited on the anticline crest. The LYM-faulted anticline accounts for the following trap groups: faulted-block and anticline-dominated trap, fault-dominated traps, and combined and stratigraphic traps. Evidence from biomarkers of crude oil and hydrocarbon-filling period simultaneous, or a little later to the strike-slip fault activity, reveal that the strike-slip faults penetrating into the deep source rock, by connecting with shallow reservoirs, provide the major hydrocarbon migration pathways.
Palladium, Platinum and Gold Concentrations in Fengshan Porphyry Cu-Mo Deposit, Hubei Province, China

The Fengshan porphyry-skarn copper-molybdenum (Cu-Mo) deposit is located in the south-eastern Hubei Province in east China. Cu-Mo mineralization is hosted in the Fengshan granodiorite porphyry stock that intruded the Triassic Daye Formation carbonate rocks in the early Cretaceous (～140 Ma), as well as the contact zone between granodiorite porphyry stock and carbonate rocks, forming the porphyry-type and skarn-type association. The Fengshan granodiorite stock and the immediate country rocks are strongly fractured and intensely altered by hydrothermal fluids. In addition to intense skarn alteration, the prominent alteration types are potassic, phyllic, and propylitic, whereas argillation is less common. Mineralization occurs as veins, stock works, and disseminations, and the main ore minerals are chalcopyrite, pyrite, molybdenite, bornite, and magnetite. The contents of palladium, platinum and gold (Pd, Pt and Au) are determined in nine samples from fresh and mineralized granodiorite and different types of altered rocks. The results show that the Pd content is systematically higher than Pt, which is typical for porphyry ore deposits worldwide. The Pt content ranges from 0.037 tul.765 ppb, and the Pd content ranges between 0.165and 17.979 ppb. Pd and Pt are more concentrated in porphyry mineralization than skarn mineralization, and have negative correlations with Au. The reconnaissance study presented here confirms the existence of Pd and Pt in the Fengshan porphyry-skarn Cu-Mo deposit. When compared with intracontinent and island arc geotectonic settings, the Pd, Pt, and Au contents in the Fengshan porphyry Cu-Mo deposit in the intracontinent is lower than the continental margin types and island are types. A combination of available data indicates that Pd and Pt were derived from oxidized alkaline magmas generated by the partial melting of an enriched mantle source.
Effect of Chorus Latitudinal Distribution on Evolution of Outer Radiation Belt Electrons

Primary result on the impact of the latitudinal distribution of whistler-mode chorus upon temporal evolution of the phase space density (PSD) of outer radiation belt energetic electrons was presented.We evaluate diffusion rates in pitch angle and momentum due to a band of chorus frequency distributed at a standard Gaussian spectrum,and solve a 2-D bounce-averaged momentum-pitch-angle Fokker-Planck equation at L=4.5.It is shown that chorus is effective in accelerating electrons and can increase PSD for energy of ～1 MeV by a factor of 10 or more in about one day,which is consistent with observation.Moreover,the latitudinal distribution of chorus has a great impact on the acceleration of electrons.As the latitudinal distribution increases,the efficient acceleration region extends from higher pitch angles to lower pitch angles,and even covers the entire pitch angle region when chorus power reaches the maximum latitude λm=45°.
The 5th International Symposium on the Tibetan Plateau held in Beijing

The 5th International Symposium on the Tibetan Plateau/The 24th Himalaya - Karakorum-Tibet Workshop Joint Conference was held on August 11-14 in Beijing, China. The Joint Conference was hosted by Chinese Academy of Sciences (CAS), The Ministry of Land and Resources of China (MLR) and People's Government of the Tibet Autonomous Region (TAR). Organized by Institute of Tibetan Plateau Research, CAS (ITPCAS), Institute of Geology, Chinese Academy of Geological Sciences (IGCAGS), The China Society on Tibetan Plateau (CSTP), Department of Science and Technology, TAR, Institute of Geographic Sciences and Natural Resources Research, CAS (IGSNRR), International Centre for Integrated Mountain Development (ICIMOD).