N_（263）浸渍树脂分离─富集Pb（Ⅱ）的研究及其应用

以Ｎ＿（２６３）浸渍在ＤＡ＿（２０１）大孔吸附树脂上制得了Ｎ＿（２６３）浸渍树脂，测定了静态时树脂Ｐｂ（Ⅱ）的吸附容量。通过柱层析法，试验了酸度，流速和干扰离子等因素对Ｎ＿（２６３）浸渍树脂吸附和洗脱Ｐｂ的影响。建立了Ｎ＿（２６３）浸渍树脂分离─富集后衔接原子吸收和比色法测定Ｐｂ（Ⅱ）的方法，测定了地质样品中Ｐｂ（Ⅱ），测试结果理想。     

Abundance, biomass and composition of spring ice algal and phytoplankton communities of the Laptev Sea （Arctic）

Abundance,biomass and composition of the ice algal and phytoplank-ton communities were investigated in the southeastern Laptev Sea in spring 1999.Diatoms dominated the algal communities and pennate diatoms dominated the dia-tom population.12 dominant algal species occurred within sea ice and underlyingwater column,including Fragilariopsis oceanica,F.cylindrus,Nitzschiafrigida,N.promare,Achnanthes taeniata,Nitzschia neofrigida,Naviculapelagica,N.vanhoef fenii,N.septentrionalis,Melosira arctica,Clindrothecaclosterium and Pyrarnimonas sp.The algal abundance of bottom 10 cm sea icevaried between 14.6 and 1562.2×10~4 ceils l~(-1)with an average of 639.0×10~4cells l~(-1),and the algal biomass ranged from 7.89 to 2093.5μg C l~(-1)with an av-erage of 886.9μg C l~(-1),which were generally one order of magnitude higherthan those of sub-bottom ice and two orders of magnitude higher than those ofunderlying surface water.The integrated algal abundance and biomass of lower-most 20 cm ice column were averagely 7.7 and 12.2 times as those of upper 20 mwater column,respectively,suggesting that the ice algae might play an importantrole in maintaining the coastal marine ecosystem before the thawing of sea ice.Icealgae influenced the phytoplankton community of the underlying water column.However,the“seeding”of ice algae for phytoplankton bloom was negligible be-cause of the iow phytoplankton biomass within the underlying water column.     

Journal of Mountain Science （JMS）

The “Journal of Mountain Science” (ISSN 1672-6316), started in 2004, is an international English-     

Biomass and carbon storage of Gracilariopsis lemaneiformis （Rhodophyta） in Zhanshan Bay,Qingdao, China

Marine macroalgae can absorb carbon and play an important role in carbon sequestration. As an important economic macroalga, Gracilariopsis lemaneiformis has the potential to significantly affect carbon absorption and storage in wave-sheltered intertidal reef systems. However, detailed knowledge on seasonal biomass changes and carbon storage of G. lemaneiformis is lacking, especially in many small and scattered ecosystems. Considering the influence of human activities on wild distribution of G. lemaneiformis, the understanding of seasonal dynamics of an economically important species in nature is necessary. In this study, we first investigated seasonal variations in biomass, coverage area, and carbon storage during low tide from August 2011 to July 2012 in Zhanshan Bay, Qingdao, China. Furthermore, we estimated the carbon storage potential of wild G. lemaneiformis using light use efficiency(LUE). The results show that the standing biomass and coverage area changed significantly with season. However, seasonal variations in carbon content and water content were not obvious, with an average content of 35.1% and 83.64%, respectively. Moreover, carbon storage in individual months varied between 0.67 and 47.03 g C/m 2, and the value of carbon storage was the highest in August and June and the lowest in February. In Zhanshan Bay, LUE of G. lemaneiformis was only 0.23%. If it is increased to the theoretical maximum(5%–6%), the carbon storage will have an increase of at least 21 times compared with the current, which suggested that carbon storage of wild G. lemaneiformis had a high enhancement potential. The study will help to assess a potential role of G. lemaneiformis in reducing atmospheric CO2.     

一种柴油机热力循环（yong）平衡计算法

针对柴油机热力循环的特点，提出了一种柴油机（yong）平衡计算方法．该方法可以计算出工质与冷却介质之间由于温差传热而引起的煳损失。计算结果表明，减少排气损失和工质与冷却水的温差传热损失、改善燃料燃烧过程是提高内燃机可用能利用率的主要途径。     

铌（Ⅴ）的极谱催化波研究及其应用

在ＨＮＯ＿３·ＥＤＴＡ─ＦｅｚＯ＿３·Ｈ＿２ＳＯ＿４介质中，铌（Ⅴ）─氟化铵─酒石酸─偶氮胂（Ⅲ）体系形成灵敏的导数极谱催化波，峰电位在─０．８６Ｖ（ＶＳ·ＳＣＥ），Ｎｂ＿２Ｏ＿５量在０─２．５μｇ／２５ｍｌ范围内与峰电位成线性关系，拟定了一个不经分离，适用于硅酸盐，碳酸盐及化探样品中微量铌的测定方法。     

CTAB对改善Cr(Ⅵ)萃取的研究

以煤油为溶剂,TBP为萃取剂,研究了CTAB对于Cr（Ⅵ）萃取率的影响.结果表明,CTAB能够有效改善Cr（Ⅵ）迁移效果,且在一定条件下,可使Cr（Ⅵ）萃取率提高到98%,应用于实际电镀废液,回收率在90%以上.     

低值鱼蛋白多肽-铁（Ⅱ）螯合物的酶解制备及其抗氧化、抗菌活性

以南海低值鱼蛋白为原料，采用木瓜蛋白酶和风味酶的复合酶水解得到多肽水解物（HP），并制备多肽．铁（Ⅱ）螯合物，对螯合工艺及螯合产物的结果及抗氧化和抗菌功能特性进行了初步研究。结果表明：1）水解度为5％的多肽与铁（Ⅱ）螯合效果最佳，螯合率为94．15％；2）化学分析及红外光谱表明活性肽与亚铁离子螯合并形成稳定结构的螯合物；（3）经过50％乙醇（体积分数）沉淀的螯合铁具有明显的抗氧化活性，其抗氧化作用相当于维生素E的90％，经过80％乙醇（体积分数）沉淀的螯合物具有显著的抗枯草牙孢杆菌和金黄色葡萄球菌活性，其抑菌圈均直径为13mm。     

义县红石砬子金（银）矿床地质特征及找矿方向探讨

义县红石砬子金矿，金以裂隙金、晶隙金和包体金产于载金矿物黄铁矿和石英等矿物内部及其间隙中。辽西中生代义县旋回酸性火山岩系发育地区具有线状火山机构并有次火山岩分布地段是寻找该类型金矿的有利地段，在上述火山岩中的硅化、黄铁矿化面型蚀变或褐铁矿染等是该类型金矿的找矿标志．     

高铝锌基合金（ZA）

高铝锌基合金是７０年代发展起来的一类新型合金。运用材料科学理论综合分析了国内外专家和研究人员在高铝锌基合金的组织、凝固特点与铸造性能、机械性能、耐蚀性能、热强性方面的研究现状．指出了存在的问题，提出了几点建议。     

Study on the Determination of Trace Ni（Ⅱ） by the Catalytic Kinetic Spectrophotometric Method

A new kinetic spectrophotometric method has been developed for the determination of trace Ni (II) in natural water.The method is based on the catalytic effect of Ni (II) on the oxidation of weak acid brilliant blue dye (RAWL) by KIO4 in acid medium.The concentration of nickel (II) can be determined spectrophotometrically by measuring the decrease of absorbance of RAWL at λ= 626 nm using the fix-time method.The influencing factors are investigated by the orthogonal experimental design.The obtained optimum analytical conditions are:pH=2.00,c RAWL=5.00×10-5 mol L-1,cKIO 4= 2.00×10-5 mol L-1,the reaction time t=10 min and the temperature T=25℃..Under the optimum conditions,the developed method allows the measurement of Ni (II) in a range of 0-40.0 ng mL-1.The standard deviation of eleven independent measurements of blank reaction is S=3.08×10-3 and the limit of detection is 2.20 ng mL-1.The relative standard deviations (RSDs) in six replicate determinations of 5 ng mL-1 and 8 ng mL-1 Ni (II) are 2.87% and 1.11%,respectively.Moreover,the experiments show few cations and anions can interfere with the measurement of Ni (II).The recovery efficiencies of this method are in a range of 97.0%-102.5% in freshwater samples.But there is a decreasing effect,which is about 0.2 times the added Ni (II) in seawater medium.After reasonable calibration this processing method is used for the determination of Ni (II) in seawater samples successfully.The results show this developed method has high accuracy and precision,high sensitivity,large range of linearity and high speed.The method can,therefore,be employed at room temperature.     

滨州市海（咸）水入侵灾害及发展趋势

近年来,山东省滨州市地下水位下降迅速,且已引起无棣-沾化-带海（咸）水入侵。通过对滨州市海（咸）水入侵现状、原因、危害及发展趋势的分析,提出限采深层地下水、合理增采浅层淡水、回灌补源、抽咸补淡、开辟新的水源和强化用水管理、全面节约用水等防治海（咸）水入侵灾害的对策措施。     

音频大地电磁测量法（AMT）在莒县地区地热勘查中的应用

利用音频大地电磁测量（AMT）法在莒县东部沭东新区进行地热资源勘查,通过前期实地踏勘和对采集的数据经过各项处理后进行反演,结合地热资源赋存有关的水文地质条件,对反演图件进行推断解释,查明了区内主要断裂构造位置、产状、规模及地下热储层深度,取得了较好的应用效果。     

基因间隔序列（ITS）在水产动物种质鉴定和遗传多样性分析中的应用

近年来，由于国内外市场对水产品的需求不断增长，水产业因此获得了长足的发展，许多水产种类的养殖量有了大幅度的增加，在给我国国民经济的增长作出贡献的同时，已经不可避免的带来了许多弊端，一些方面甚至在一定程度上会影响未来水产业的发展。其中最应该引起关注的是由于目前捕捞强度的增加、生态环境的恶化等，导致许多种群的数量大量减少，产量也随之降低，种质资源遭到前所未有的破坏和衰退。因此，种质鉴定、种群分析及保护和遗传多样性的研究已经成为当前水产研究的当务之急。     

广西锡（钨）矿床中的伴生银

广西锡（钨）矿产资源丰富，锡（钨）矿床中的伴生银具有综合利用价值。据已勘查评价的锡（钨）矿床中伴生银的储量占全区银总储量的三分之二以上，其中少数矿床银储量已达大、中型规模，是我区银资源的一笔较大的财富。锡矿床中的伴生银无论是在锡矿田、锡矿床的时空分布上，或者是在矿物共生组合、元素相关关系上，都具有其规律性，对寻找伴生银勘查有现实意义。主要锡矿床伴生银工艺矿物学的研究资料，为锡（钨）矿山开发白银生产、指导这矿提供了科学依据。     

（火用）分析在连续冻结隧道制冷系统优化配置中的应用

同样速冻能力的连续冻结隧道装置可以有不同的供冷系统配置。从节能的角度出发，对连续冻结隧道装置所配制冷系统的两种方案进行煳分析比较。结果表明，在采用双蒸发温度系统的配置中，冻结隧道装置有效能效率提高了3．14％，单位耗功和由于温差传热引起（yong）损失率分别下降了18．22％和27．22％，系统达到明显的节能效果。     

山东诸城孟家庄子矿区瓷土（石）矿地质特征与成因分析

孟家庄子矿区瓷土(石)矿位于诸城市南10 km处。矿区主要出露地层为中生代青山群,总体呈NEE向展布,石前庄组是赋矿层位;构造形式是单斜构造和断裂,节理不发育,局部断裂对矿层有一定的破坏作用;岩浆岩为中生代白垩纪青山期粗安斑岩潜火山岩,侵入于青山群方戈庄组中,对矿层没有影响。矿石自然类型为流纹质凝灰岩、流纹质含角砾凝灰岩,工业类型为瓷土(石)矿。成矿类型为陆相(火山)沉积水解蚀变型瓷土(石)矿。     

Abundance and Biomass of Benthic Bacteria in Jiaozhou Bay, China

The abundance and biomass of benthic heterotrophic bacteria were investigated for the 4 typical sampling stations in the northern muddy part of Jiaozhou Bay, estuary of the Dagu River, raft culturing and nearby areas of Huangdao in March, June, August and December, 2002. The abundance and biomass range from 0.98×10⁷ to 16.87×10⁷ cells g⁻¹ sediment and 0.45 to 7.08 μg C g⁻¹ sediment, respectively. Correlation analysis showed that heterotrophic bacterial abundance and biomass are significantly correlated to water temperature (R=0.79 and 0.83, respectively,P<0.01).