钛（Ⅳ）的反相萃取柱色层新体系研究及应用

本文研究了以ｃＨＣｌ＝８ｍｏｌ·Ｌ－１盐酸为移动相，以聚四氟乙烯负载的钽试剂－ＣＨＣｌ３为固定相反相萃取层析钛（Ⅳ）的新体系，柱上层析的钛用ｃＨＣｌ＝３ｍｏｌ·Ｌ－１盐酸洗脱后经二安替比林甲烷光度法测定，不仅钛回收率可达１００％，并可使钛（Ⅳ）与多种离子分离。能用于矿物岩石类复杂样品及其他物质中钛的分离富集与测定，方法简便快速。     

甘蔗品种过氧化物酶同工酶稳定性分析

以不同甘蔗品种为材料,用垂直平板聚丙烯酰胺凝胶电泳,进行同一品种在不同种植地区及同一植株不同叶位的同工酶酶谱比较。结果表明,不同品种其酶谱在酶带强度、带数及Rf上有明显的区别,但同一品种在不同种植地区、不同植株、同一植株不同叶位其酶诺无明显差异,体现了同工酶作为品种标记的稳定性。     

四川汶川,都江堰,崇州,大邑等毗邻地区的旅游资源与开发前景

汶川县、都江堰市、崇州市、大邑县等毗邻地区,分布着诸多的旅游景点,根据景点的开发情况和地质地貌 景象特征,可以划分为已开发旅游景区和特开发旅游景区两大类,分别阐述了各景点、景区的特征及其形成的地质背景,并对旅游片区的旅游资源的开发与保护提出了建议。     

Experimental investigation on a two-part underwater towed system

An experimental set-up is developed and proved to be effective for laboratory study of an underwater towed system. The experimental technique gives a practical method for monitoring the kinematic and dynamic performance of an underwater towed system in a ship towing tank. Both the theoretical and experimental results in the investigation indicate that the hydrodynamic response of a towed vehicle to the wave induced motion of a towing ship can be significantly reduced by applying a two-part tow method. A comparison of the numerical and experimental results in the investigation demonstrates that the numerical simulation results are close to the experimental data, overall agreement between experimental and theoretical results is satisfactory. The results qualitatively verify the mathematical model of a two-part underwater towed system proposed by Wu and Chwang [Wu, J., Chwang, A.T., 2000. A hydrodynamic model of a two-part underwater towed system. Ocean Engineering 27 (5), 455–472].     

地区发展水平衡量指标体系设计及实例分析

选定地区发展水平衡量指标，测度区域社会，经济，文化发展水平或发育程度是一项有重要的工作，本文试图为量度我国西部地区发展水平提供一套昼完整的指标体系，并对一个具体实例进行衡量和计算，由此说明地区的区内发展程度的差异，划分区域发展的不同类型。     

An object-based conceptual framework and computational method for representing and analyzing coastal morphological changes

This article presents an object-based conceptual framework and numerical algorithms for representing and analyzing coastal morphological and volumetric changes based on repeat airborne light detection and ranging (LiDAR) surveys. This method identifies and delineates individual zones of erosion and deposition as discrete objects. The explicit object representation of erosion and deposition zones is consistent with the perception and cognition of human analysts and geomorphologists. The extracted objects provide ontological and epistemological foundation to localize, represent, and interpret erosion and deposition patches for better coastal resource management and erosion control. The discrete objects are much better information carriers than the grid cells in the field-based representation of source data. A set of spatial and volumetric attributes are derived to characterize and quantify location, area, shape, orientation, depth, volume, and other properties of erosion and deposition objects. Compared with the conventional cell-by-cell differencing approaches, our object-based method gives a concise and high-level representation of information and knowledge about coastal morphological dynamics. The derived attributes enable the discrimination of true morphological changes from artifacts caused by data noise and processing errors. Furthermore, the concise object representation of erosion and deposition zones facilitates overlay analysis in conjunction with other GIS data layers for understanding the causes and impacts of morphological and volumetric changes. We have implemented a software tool for our object-based morphological analysis, which will be freely available for the public. An example is used to demonstrate the utility and effectiveness of this new method.     

1979—2014年全球变暖背景下青藏高原气候变化特征

近几十年来全球变暖受到越来越广泛的关注,然而全球变暖从1998年开始趋缓,但青藏高原却呈现加速增暖的趋势。本文基于前人研究,系统回顾了青藏高原气温、积雪、降水和大气热源等四方面在全球变暖背景下的变化,指出高原的加速增温导致了积雪迅速融化,降水明显增多的同时,高原热源却呈现减弱趋势。     

辽宁义县—北票地区义县组地层层序——义县阶标准地层剖面建立和研究之一

义县地区广义的义县组可解体为王家屯组 (暂命名 )和义县组 ;分属王家屯和义县火山旋回 ,前者为偏酸、偏碱性 ,后者主体为中基性、末期为中酸性火山岩系 ,并广泛发育潜火山岩相的玄武玢岩、安山玢岩和火山集块角砾熔岩筒。该区有七个主要沉积层 ,自下而上分别为王家屯组马神庙层、义县组老公沟层、业南沟层、砖城子层、大康堡层、朱家沟层和金刚山层 ;产有较丰富的无脊椎动物、脊椎动物和植物化石。以砖城子层、大康堡层和金刚山层为界 ,义县火山旋回可划分为 4个亚旋回 ,分别代表火山活动的初始期、主期、晚期和末期。北票四合屯地区的义县组相当义县地区义县组的第一和第二亚旋回 ,含鸟类化石的主沉积层 (尖山沟层和上园层 )可与砖城子层对比     

我国煤矿矿井地质工作发展阶段概述

矿井地质是一门探索性、适用性都非常强的技术科学,是在煤田地质勘查的基础上、在矿井建设和生产期间、直接为煤矿建设和生产服务的一项重要技术基础工作。我国的矿井地质工作是随着煤炭工业的迅速发展而建立和发展起来的,并积累了丰富的实践经验,逐步形成了一套比较完整的工作内容和工作方法,它对煤矿建设和生产起着重要的作用,其发展历程可划分为四个阶段:初期创立阶段、曲折发展阶段、开拓前进阶段和发展提高阶段。随着我国经济的快速发展,煤炭需求量也随之持续增长,煤炭开采逐步向深部等难采块段及边缘地区推进,其地质条件日趋复杂,开采难度加大,因此矿井地质工作必须做好基础地质的研究工作,重视高新技术应用,完善地质保障体系,逐步提高勘探精度。     

Thrusting of the North Lhasa Block in the Tibetan Plateau

A huge thrust system, the North Lhasa Thrust (NLT), was discovered in the northern Lhasa block of the Tibetan Plateau based on geological mapping of the Damxung region and its vicinity, the Deqen-Lunpola traverse and the Amdo-Bam Co profile. The NLT consists of the Dongqiao-Lunpola thrust (DLT), the west Namco thrust (WNT) and the south Damxung thrust (SDT) and ductile shear zones, ophiolite slices and folds extending in a WNW direction. Major thrust faults of the NLT seem to merge into a single deep-seated detachment of the upper-crust and totally displaced southward as far as 100-120 km. Chronological analyses with 39Ar-40Ar of plagioclase and hornblende, Rb-Sr isochron of minerals and fission-tracks of apatite from mylonite within the WNT yield ages of 174-173 Ma, 109 Ma and 44 Ma, showing 3 periods of thrusting in the north Lhasa block caused by subduction of the Tethys oceanic plate and the India-Eurasia continental collision respectively.