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立体仓库采用智能化出入库管理,集自动入库、智能化储存和自动化出库于一体,物品高度集中,火灾负荷集中的建筑。立体仓库的消防给水设施是其中重要的消防设施之一,本文主要分析立体仓库消防水系统的设计及参数的选择。 相似文献
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Diesel is the main source of world transportation due to higher combustion efficiency, compliance, consistency and cost-economy. It is also a major contributor to the world prosperity since it is used extensively. Diesel engine’s emissions are the serious hazard to the world environment and it is measured to be the major causes of air pollution. The demand in biofuels for years created a scope for aloe vera into biodiesels. Aloe vera, having higher calorific value vnthan other plant sources used as biodiesels, enhanced us in making another alternative biodiesel, which has lesser emissions and better performance. In this research work, four biodiesel blends from aloe vera oil with cerium oxide additive are explored for their performance and emission characteristics. The results proved B30 (30% biodiesel, 68% diesel and 1% cerium oxide) gives good performance when compared to other blends. 相似文献
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南厂铅锌矿位于兰坪—思茅中生代坳陷北端,构造格局复杂,成矿条件优越。通过对矿床进行野外地质调查,对成矿地质背景、矿床地质特征、成矿机制和矿床成因进行了分析,发现南厂铅锌矿体主要呈透镜状赋存于第三系云龙组(Eyb)及下白垩统景星组(K1j1)地层中,与围岩接触部位发育微弱褪色蚀变,云龙组下段(Eya)是矿体底板有效的“屏蔽层”;区内发育原生砂岩型矿石、灰岩型矿石和氧化矿石,沉积构造特征明显,局部具有热液、变质作用改造特征;矿区地层、构造是矿床形成的重要因素,断裂构造是主要的容矿、导矿构造,高盐度热卤水沿导矿构造循环至有利层位、构造部位富集成矿,综合分析认为南厂矿床属热卤水为主的多成因层控型铅锌矿床。 相似文献
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腾冲市茨竹地铁多金属矿现目前是一座正在开采的以磁铁矿为主、共(伴)生锡钨矿的小型矿山。为了增加矿山资源储量、延长矿山服务年限,通过对矿区的地质特征阐述和对矿区地层岩性、构造、岩体等控矿因素的分析研究,总结了矿区成矿规律并形成了矿区的成矿模式,为矿区深部探矿、外围找矿提供了一定的理论依据。 相似文献
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Study of tritium transport characteristics in a transportable fluoride‐salt‐cooled high‐temperature reactor 下载免费PDF全文
Tritium management is one of the most critical issues that limit the development of fluoride‐salt‐cooled high‐temperature reactor (FHR); therefore, it is important to figure out the tritium transport characteristics in FHRs. In this paper, 3 works concerning about tritium in FHR are conducted: first, the tritium transport characteristics in the primary loop of FHRs are introduced, including tritium production and speciation, the absorption and desorption by graphite, dissolution and diffusion in molten salt, and permeation through structural materials. Second, the physical and mathematical models are established for tritium transport characteristic analysis in a transportable FHR (TFHR). The tritium transport characteristic analysis code (TAPAS) for TFHR is developed and benchmarked. The results prove the fidelity and accuracy of TAPAS. Finally, the tritium transport characteristics in the TFHR are analyzed systematically by TAPAS. Three conclusions are obtained: (1) tritium in the primary coolant loop is mainly in the form of T2; (2) when TFHR operates at steady state, the permeation rate of T2 can be regarded as a constant (9.03 × 109 Bq ? EFPD?1 ); and (3) 7Li enrichment and redox potential of molten salt have great influence on the tritium distribution. This work might provide contribution to the tritium control in FHRs. 相似文献
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In sport sceneries, automatically recognizing human actions is a useful technique that can be popularly applied in may domains, such as human body tracking and athlete behavior analysis Most state-of-the-art deep architectures have achieved competitive performance in recognizing human action. However, it is still a challenging task due to the unavoidable occlusion, camera angle changes, and varied human posture. In this paper, we propose a novel deep multimodal feature fusion algorithm for human action recognition. The key technique is a multi-model feature fusion scheme. More specifically, we fuse visual feature, skeleton posture, probability maps and audio signal into a hybrid feature, which is utilized to represent human action. Then these feature channels are optimally combined using a deep model, wherein the weights of multiple feature channels can be predicted intelligently. Finally, the optimally fused feature are fed into a multi-class SVM for conducting human action recognition. Extensive comparative results and parameter analysis have shown the effectiveness of our proposed method. 相似文献