三江源天然草地TM影像植被指数分析

应用归一化差值植被指数(NDVI)、土壤调节植被指数(SAVI)、修正后的土壤调节植被指数(MSAVI)、植被信号与土壤噪音之比(S/N)4种指数研究三江源49种草地类型TM影像,结果为该地区草地类型的遥感识别分类提供信息和依据.     

玛沁县天然草地生态系统服务功能价值评价

为了研究玛沁县天然草地生态系统服务功能价值,利用7种指标评价玛沁县高寒草地类12种天然草地类型的生态价值,为三江源区尤其是囊谦县生态补偿提供理论依据.     

利用TM影像研究玛多县天然草地资源景观格局

依据景观生态学的理论,运用"3S"技术,在草地资源分类的基咸工,对玛多县天然草地资源景观格局进行分析及评价.结果表明:研究区景观格局现状不佳,建议进行生态修复.     

自动压板台装置在四机架冷连轧机上的应用

介绍了自动压板台的结构特点及实际应用，强调指出，在现代大型冷连轧机上使用自动压板台是十分切实可行的，它不但能提高作业率，增加产量，降低工人劳动强度、而且还胡提高成材率。     

酸处理降低碳酸盐岩储层破裂压力的影响因素分析

以碳酸盐岩储层为研究对象,通过碳酸盐岩岩石力学强度本质分析,研究岩石的矿物组成、结构特征、构造、水或者化学溶液作用以及缺陷对碳酸盐岩岩石力学性质的影响.     

Field Study of the Ability of Two Grassed Bioretention Cells to Reduce Storm-Water Runoff Pollution

Two grassed bioretention cells including internal storage zones (ISZs) were monitored for 16?months in central North Carolina. Each cell had a surface area of 106?m2 and fill media depths were 0.75 and 1.05?m for the north (North) and the south (South) cells, respectively. Asphalt parking lot inflow and outflows were analyzed for nitrogen and phosphorus forms and fecal coliform (FC). Outflow volumes and peak flows for individual storms were generally less than those of inflow. Overall, except for NO2,3–N, effluent nitrogen species event mean concentrations (EMCs) and loads were significantly (α = 0.05) lower than those of the inflow, and nitrogen species load reductions ranged from 47 to 88%. Apart from fall and winter, during which a longer hydraulic contact time seemed to be needed, the ISZs appeared to improve denitrification. Total phosphorus (TP) and OPO4-P EMCs were significantly lower than those of the inlet. Reductions were 58% (South) and 63% (North) for TP and 78% (North) and 74% (South) for OPO4–P. There was no significant difference in TP and OPO4–P loads between the inlet and the two outlets. Moreover, effluent concentrations for both phosphorus species were low, relative to other studies. The best nutrient EMC and load reductions occurred during the warm and humid seasons. When considering effluent concentrations in addition to removal rates, the grassed cells showed promising results for FC and nutrient pollution abatement when compared to conventionally vegetated bioretention (trees, shrubs, and mulch) previously studied in North Carolina.     

降低液压伺服阀的故障率的措施

液压伺服阀是冶金设备液压系统上经常使用的一种高精度控制元件,此文分析了引起伺服阀故障的主要原因,提出了如何降低伺服阀故障的一些措施.     

两种推焦串序膨胀压力和成焦速度的比较

从入炉煤对炉墙的膨胀压力和成焦速度两个方面,对9-2推焦串序和5-2推焦串序进行比较。分析讨论哪种串序有利于减少膨胀压力,哪种串序有利于快速成焦。     

Stratum corneum lipids: the effect of ageing and the seasons

Stratum corneum lipids play a predominant role in maintaining the water barrier of the skin. In order to understand the biological variation in the levels and composition of ceramides, ceramide 1 subtypes, cholesterol and fatty acids, stratum corneum lipids collected from tape strippings from three body sites (face, hand, leg) of female Caucasians of different age groups were analysed. In addition, we studied the influence of seasonal variation on the lipid composition of stratum corneum from the same body sites. The main lipid species were quantified using high-performance thin-layer chromatography and individual fatty acids using gas chromatography. Our findings demonstrated significantly decreased levels of all major lipid species, in particular ceramides, with increasing age. Similarly, the stratum corneum lipid levels of all the body sites examined were dramatically depleted in winter compared with spring and summer. The relative levels of ceramide 1 linoleate were also depleted in winter and in aged skin whereas ceramide 1 oleate levels increased. The other fatty acid levels remained fairly constant with both season and age, apart from lignoceric and heptadecanoic acid which showed a decrease in winter compared with summer. The decrease in the mass levels of intercellular lipids and the altered ratios of fatty acids esterified to ceramide 1, are likely to contribute to the increased susceptibility of aged skin to perturbation of barrier function and xerosis, particularly during the winter months.     

Change in coordination across phases of psychotherapy and outcome: Two mechanisms for the role played by patients' contribution to the alliance.

Investigated the mechanisms underlying associations between patients' contribution to the alliance and outcome by examining relations between change in the alliance over the course of treatment and improvement in Short-Term Dynamic Psychotherapy (STDP) and Brief Adaptive Psychotherapy (BAP). Findings for STDP were consistent with 1 model about the role played by the alliance, according to which change in the alliance over the course of therapy is the vehicle for overall improvement. Results for BAP were consistent with the other main position proposed in the literature, which argues that a positive alliance provides the foundation for successful treatment. Discussion includes suggesting that it might prove useful in future research to group therapy approaches in terms of these 2 models and that this idea may explain 2 apparently contradictory sets of findings from previous studies on relations between change in the alliance and outcome. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

降低钢铁料消耗，节约能耗．

针对济钢钢铁料成分不稳定、操作不稳,冶炼过程喷溅等情况,分析了多种影响钢铁料消耗因素,采用多项措施来降低钢铁料消耗,经实践达到了高产、低耗的目标。     

压力容器最高允许工作压力与气密性试验压力及超压泄放装置动作压力的使用探讨

对《固定式压力容器安全技术监察规程》规定需进行气密性试验的容器其超压泄放装置动作压力的选取提出了建议、对设计中如何灵活应用最高允许工作压力进行了分析阐述。     

硫化锌精矿两段逆流氧压浸出原理及综合回收镓锗工艺研究

文章分析了硫化锌精矿氧压浸出各元素的行为,阐明了硫化锌精矿两段逆流氧压浸出的原理及综合回收镓、锗的工艺。说明了两段逆流氧压浸出综合回收镓、锗的生产工艺特点。