超载作用下软土地基承载力平板载荷试验研究

采用现场试验的方法对软土地基周围存在超载时承载力特性进行了研究,研究结果表明：平板载荷试验在周围存在超载作用情况时,各级荷载作用下沉降明显减小,地基承载力有明显提高,并与考虑深度修正作用下地基承载力的计算结果进行了比较,从而验证了地基承载力的深度修正的必要性。     

线棒材加热炉出钢节奏与时序控制探讨

从线、棒材加热炉生产工艺流程出发,详细介绍了各设备的动作时序并制订了时序图,比较了不同规格钢坯、不同产量下的出钢节奏,分析了限制出钢节奏的因素,为合理配置加热炉产量、制定出钢节奏和设备动作时序提供了参考数据。     

Book review

The goal of this study is to extend Rasmussen's framework for risk management to research organisations having to deal with reduced income from government funding and increased market orientation. One human factors research organisation was studied in detail. Using archival records, changes were studied over the period 1989–2010. The results showed an increase in income from market funding relative to government funding, and a decrease in written output. Predictions by stress–strain theory were confirmed in that during the first 5 years of the period under consideration, a linear relationship between the increase in market funding and written output was observed, whereas a nonlinear relationship was observed in the next 5–10 years, indicating a larger decrease in written output than would be expected. Generally, the results show that research organisations are adaptive systems that trade off resource allocation to either commercial activities or scientific activities, depending on incentive schemes.     

Assessing the reliability of the M5-120 on Amazon’s mechanical Turk

Amazon’s online service, Mechanical Turk (MTurk) has become a popular option for data collection among social scientists. Early work (Buhrmester, Kwang, & Gosling, 2011) indicated that data collection through MTurk was faster and less expensive than traditional collection methods (undergraduate human subject pool), as well as being reliable when administered at different dates. Building on their work, we sought to extend this investigation of reliability to a larger measure. For the current research we chose a 120-item measure of personality. After collecting data through MTurk, it was determined that our MTurk sample had strong test–retest reliability, indicating that they did not significantly change between administration dates.     

Development of a Method of Selecting Important Alarms for Nuclear Power Plants

Presenting important alarms selected from a large number of activated alarms provides useful operational support under a transient status in a nuclear power plant. We have developed an alarm processing method which selects and presents important alarms depending on plant status.

In this method, important alarms are selected, first, based on physical relationships between alarms and component status including alarms themselves and second, even more important alarms are selected from the previously selected alarms according to the identified initial event causing the transient. Identification of the initial event is implemented by a neural network. The identified initial event and selected important alarms are presented to show the cause and influence of the transient.

A prototype based on the above alarm processing method was validated during the start-up test at Kashiwazaki Kariwa Nuclear Power Plant Unit Number 4 of Tokyo Electric Power Co. The initial events, which were load rejection, turbine trip and main steam isolation valve closure, were correctly identified and about 30% of all activated alarms were selected as important. It was verified by an operating expert that the presentation of the identified initial event and the selected important alarms were effective to understand rapidly and correctly the transient status of the plant.     

几丁聚糖的生产工艺现状

甲壳素是无脊椎动物外骨骼和真菌细胞壁的主要结构成分,在自然界中是仅次于纤维素的第二大类生物材料,几丁聚糖是甲壳素脱乙酰基的产物,是一种天然阳离子聚合物,无毒无害,安全可靠,易生物降解。几丁聚糖的工业化生产方法为化学提取法。分别介绍了以虾蟹壳、真菌、其他动植物为原料的生产工艺。     

开展设备状态检修 推动生产管理升级

围绕供电公司状态检修工作的开展,对状态检修工作进行了系统的思考,提出了深化落实的具体思路和方法。     

建筑设计中的建筑节能的解析

在建筑设计过程中,节能理念的体现显得尤为重要。本文通过多年的工作经验及结合相关材料对建筑设计中的建筑节能展开解析。     

危机与契机并存——从学位论文看我国建筑更新领域学术研究发展情况

本文对我国近十余年间建筑更新及建筑保护领域学术论文做了全面的搜集和多角度的统计工作,分析介绍了我国建筑更新领域的学术地位和学术发展特征,并对其存在的问题进行了阐述和深层次剖析,力求为我国建筑更新领域后续研究工作的开展起到参考借鉴作用。     

采用过程决策程序图法控制烧结矿品位

介绍了一种采用过程决策程序图法控制烧结矿品位的方法，论述了该方法的特点、应用实践及效果，为国内具有现代化综合料场的钢铁企业提供了一种可行的质量管理方法