基于学习成效驱动的暖通专业研究生课程多元化考核方法研究与实践

哈尔滨工业大学暖通学科为研究生开设了基础课、专业基础课和专业课。针对不同类型课程的特点,提出了“期末考试+课程论文+报告答辩”“课堂内容考核+课外阅读考核+综述论文+案例论文+课堂提问+专题讨论”“开卷考试+研究报告+加分计分”“上机实践+研究报告”“课程论文+课堂练习+工程案例分析交流”等多元化的考核方式,注重过程管理。介绍了多元化考核模式及其在暖通学科不同类型课程改革中的应用,以期对其他工科类研究生课程考核提供借鉴。     

三景融合与中国古典园林多元景观构成

提出多元景观营造的理念,指出人们对景观的感知与欣赏,是经由视觉、听觉、嗅觉、触觉乃至热湿等感觉所综合形成的整体印象和评判的过程。因此风景园林的设计与营造必须重视声景、香景与光景的营造与融合。多元景观营造论的另一要点,是必须同时关注景观的空间性与时间性两个维度,使得所构建的景观,能做到处处、时时良好。在这方面,三景的营造也能突显其地域性与时间性的特点。通过对若干中国传统园林经典案例的剖析,雄辩地证明了多元景观营造与三景融合正是中国传统园林的宝贵经验之所在,对于成就著名景观具有重要作用,也是我们应当大力加以传承与弘扬的优秀传统。     

基于生态学的大型公共工程可持续发展研究综述及总体构架

工程可持续发展是可持续战略的一部分.生态学的引入是对建设工程问题研究理论与方法的全新架构,具有开创性的理论与实践意义.其研究目的在于更好地落实可持续发展战略,并为工程实践服务.本文综述了国内外研究现状,并提出了具体的研究思路和框架.     

Industrial symbiosis: high purity recovery of metals from Waelz sintering waste by aqueous SO2 solution

Sintering operation in the production of Zn, Cd, and Pb by Waelz process produces a powdery waste containing mainly (about 70%) ZnO, CdO, and PbO. The waste may be referred to as Waelz sintering waste (WSW). The aim of this study is to develop a process for the separation and recovery of the metals from WSW with high purities. The process is based on the dissolution of the WSW in aqueous SO2 solution. The research reported here concentrated on the effect of some important operational parameters on dissolution process. The parameters investigated and their ranges were as follows: SO(2) gas flow rate (V); 38-590 ml/min, stirring speed (W); 100-1000 rpm, reaction temperature (T); 13-60 degrees C, reaction time (t); 1-16 min, and solid-liquid ratio (S/L); 0.1-0.5 g/ml. The results showed that the dissolution rate increased with increasing W, V, and S/L and decreasing T. The best dissolution conditions were found to be V=325 ml/min, W=600 rpm, t=6 min, T=21 degrees C, and S/L=0.1g/ml. Separation of Zn from Cd involved precipitation of ZnSO3 from a mixture solution. The best pH level for the precipitation was observed to be 6.     

沙田柚加工工艺的研究

本文针对沙田柚在不同采收期和贮藏期中的各种营养成份的变化研究分析,为沙田柚深加工及各种加工工艺提供重要参考依据。     

AutoCAD中地形图图形与数据转换

介绍了在ＡｕｔｏＣＡＤ中,通过组建型、线型来表达地物地貌,使复杂地物地貌在数字图形中成为一个整体的方法和手段,就ＣＡＤ环境地形图生成数据文件、由数据文件恢复地形图进行了深入的探讨。     

Epibiotic microorganisms on copepods and other marine crustaceans

Although the occurrence of microbial (algal, protozoan, bacterial, and fungal) epibionts on marine crustaceans and other invertebrates has been documented repeatedly, the ecological context and significance of these relationships generally are not well understood. Recently, several studies have examined the population and community ecology of algal and protozoan epibionts on freshwater crustaceans. Even so, the study of microbial epibionts in aquatic environments is still in its infancy. In this review, we summarize associations of microalgae, protozoans, and bacteria with marine crustaceans, especially copepods. We note differences and commonalities across epibiont taxa, consider host-epibiont cycling of nutrients, generate hypotheses relevant to the ecology of the host and the epibiont, and suggest future research opportunities. Microsc. Res. Tech. 37:116–135, 1997. © 1997 Wiley-Liss, Inc.     

TDD/CDMA系统交叉时隙干扰的解决方案

针对时分双工/码分多址（TDD/CDMA）系统在动态调整上下行时隙的分配时会产生严重的交叉时隙干扰问题，提出了一种基于隔离区域的移动台间干扰的解决方案。隔离区域由移动台接收到的导频信号差值确定，该隔离区域范围较小，从而交叉时隙容量较大。同时分析了交叉时隙基站间干扰，结果表明,由于基站间传输条件较好，不能完全克服基站间干扰。因此TDD/CDMA系统（如时分同步CDMA(TD-SCDMA)）的动态调整上下行切换点技术仍然很难应用于实际系统中。     

Symbiosis Analysis on Industrial Ecological System

Industrial ecological system is a sustainable mode of modern industry development. Industrial symbio-sis, a sub-field of industrial ecology, engages traditionally separate industries in a collective approach, involving exchange of materials, energy, water, and/or by-products, to enhance competitive ability and environmental per-formance. To construct a symbiosis analysis method, this article employs a number of parameters embodying in-formation about materials, energy and economics as the main essential parameters in system analysis and introduces symbiosis profit and symbiotic consumption elements as the economic indicators. A modeling and simulation pro-gram is designed using the agent-based modeling approach to simulate the evolvement of a hypothetical coal-based industrial system and the change of symbiosis conditions in the process of construction is examined. The simulation program built using the Swarm library, which is a freely available multi-agent simulation package, provides a useful demonstration for the symbiosis analysis method.     

低碳理念指导的煤化工产业发展探讨

煤是含碳量最高的化石能源。煤炭利用导致大量CO₂排放的问题已引起高度重视。为此,本文提出了以低碳理念指导的我国煤化工产业的发展思路。基于我国的实际情况,高能效的多联产路线以及煤化工和石化、冶金等产业的共生路线是实现煤的分级和高效利用的必然选择;在高附加值煤化工产品方面,应该大力发展三烯、三苯、天然气、乙炔等产品替代石油化工,尽可能减少对石油进口的依赖,并降低单位GDP煤化工的碳排放强度;为此必须加强相关关键工艺技术以及煤炭组分定向剪裁和转化等新技术的研发。