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RANDOM TERRAIN MODEL
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作者 李清 高伟 +1 位作者 陆宇平 沈春林 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 1997年第1期19-24,共6页
In order to slove a realistic test problem of TF/TA algorithm, it is necessary to make a discrete terrain model. The model has adjustable roughness parameters so as to test the optimization procedure for different typ... In order to slove a realistic test problem of TF/TA algorithm, it is necessary to make a discrete terrain model. The model has adjustable roughness parameters so as to test the optimization procedure for different types of terrain. In this paper, an algorithm to generate random terrain data is given. 展开更多
关键词 digital terrain models stochastic fields terrain avoidance topographic maps
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平朔东露天矿排土机行走路径探讨 被引量:1
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作者 刘果 王忠杰 《露天采矿技术》 CAS 2017年第10期36-39,共4页
平朔东露天矿半连续系统排土机目前放置在外排1475土场,排土机需要从外排土场行走至场地。根据排土机行走特点和参数要求,论证排土机行走至存放场地最佳路径方案,以最小工程量、花最短时间将排土机行走至1400平盘存放场地。
关键词 露天矿 排土机 回场地 行走方案
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潮白河流域人工复合土层系统去除甲氧苄氨嘧啶的模拟研究
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作者 刘芹芹 李淼 +3 位作者 张发旺 余和春 张泉 刘翔 《水文地质工程地质》 CAS CSCD 北大核心 2017年第3期151-157,共7页
基于潮白河流域再生水的场地回灌,为提高抗生素甲氧苄氨嘧啶(TMP)的去除率,降低其进入地下水的风险,选用价格低廉对TMP有高效去除性能的黏土陶粒作为吸附剂,构建去除TMP的人工复合土柱。吸附实验研究结果显示黏土陶粒对TMP吸附容量达到1... 基于潮白河流域再生水的场地回灌,为提高抗生素甲氧苄氨嘧啶(TMP)的去除率,降低其进入地下水的风险,选用价格低廉对TMP有高效去除性能的黏土陶粒作为吸附剂,构建去除TMP的人工复合土柱。吸附实验研究结果显示黏土陶粒对TMP吸附容量达到151.824μg/g,具有去除再生水中TMP能力;TMP在黏土陶粒解吸过程中存在解吸滞后性的现象。柱实验研究结果表明此人工复合土柱能够有效地去除再生水中TMP,去除率高于95%,其去除机制主要是吸附与生物降解协同作用。本研究建立的人工复合土层系统能有效地去除再生水中TMP,对实际场地回灌工程具有指导性作用。 展开更多
关键词 人工复合土层 吸附 甲氧苄氨嘧啶 生物降解 潮白河流域 场地
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某多功能体育馆的暖通设计 被引量:2
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作者 王振萍 王永刚 《低温与特气》 CAS 2006年第2期20-23,共4页
简述了某多功能体育馆工程暖通专业的设计要点,并针对其特点提出一些观点。
关键词 高大空间 场地 圆喷口选型 通风排烟
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The Hedonic Modelling of Rental Values of Properties in Nasarawa, Nigeria
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作者 Abdullahi Alhassan Ahmed Joseph Awoamim Yacim 《Journal of Civil Engineering and Architecture》 2018年第5期382-390,共9页
The purpose of this study is to explore the need to adopt the CAMA (computer assisted mass appraisal) based system into the Nigerian property market with an example data from Nasarawa in Nasarawa State. Using the ... The purpose of this study is to explore the need to adopt the CAMA (computer assisted mass appraisal) based system into the Nigerian property market with an example data from Nasarawa in Nasarawa State. Using the hedonic regression models on 312 samples, the results reveal the linear form to outperform the semi-log specification. This demonstration shows that CAMA system can be introduced into the local market of Nasarawa and indeed the whole of Nigeria for property taxes. 展开更多
关键词 CAMA hedonic regression net annual value and mass appraisals.
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Study of the relationship between average prices of residential properties and selected economic factors in the years 2000-2002 in Szczecin
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作者 Dariusz Pechorzewski 《Chinese Business Review》 2010年第6期43-50,64,共9页
The article presents the development unemployment and interest rates against the average of important economic variables such as GDP dynamics, transaction prices in one of the local property markets in Poland in the y... The article presents the development unemployment and interest rates against the average of important economic variables such as GDP dynamics, transaction prices in one of the local property markets in Poland in the years 2000-2002. The strength, direction and time delay of the relationships between these variables and transaction prices have been considered during the only period of decline in property prices in the years 2000-2002. The specified relationships have been described using linear regression equations. 展开更多
关键词 local property markets DEMAND determinants of demand
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