攀钢营盘山高陡边坡稳定性极限平衡综合评价

针对营盘山高陡边坡工程地质条件实际，根据控制边坡稳定性的不同边界条件，采用极限平衡法，从平面、空间角度对边坡稳定性进行了定量计算，并综合分析、评价了优化后的边坡境界方案。     

排土场边坡稳定性有限元法研究及应用

本文从排土场边坡岩石破坏模型入手，考虑到排土场形成的模拟，地震效应以及地下水的力学作用，采用弹塑性有限元分析方法对其边坡稳定性进行分析研究，并引入抗煎破坏安全度的概念，对边坡稳定性进行评价。应用于南芬铁矿庙儿沟排土场边坡稳定性研究，其计算结果与极限平衡分析结果进行了比较，取得了良好效果，表明该人有广泛的应用前景。     

倾斜层状矿床下盘边坡稳定性特征分析

矿床下盘边坡稳定性是矿产安全生产的必要条件,因此本文对倾斜层状矿床下盘边坡稳定性特征进行了探究。首先对倾斜层状矿床下盘边坡稳定性的研究方法进行了列举和说明,然后对倾斜层状矿床下盘边坡稳定性进行讨论分析,最后对倾斜层状矿床下盘边坡稳定性特征和未来方向进行了分析。     

边坡支护工程在矿山地质灾害治理施工中的应用

边坡支护是一种十分有效的防治方法，特别是对矿井地质灾害的处理，采用边坡支护技术，能有效地减小边坡的应力和变形，消除滑坡的危险性，提高矿山的稳定性；边坡支护能够有效地提高边坡的抗滑性能，从而提高其抗震性能，从而达到深层加固目的。试验结果表明，边坡支护措施能改善边坡的稳定性，并能降低其发生的地质灾害。本文对边坡支护，在矿山地质灾害治理中的应用进行了探讨。     

不同尺度地质构造对露天矿边坡稳定性的影响——以北衙万硐山露采区为例

以云南北衙超大型金-多金属矿集区万硐山露采区为例，研究了不同尺度构造对露天矿边坡稳定性的影响，考虑不同尺度地质构造对边坡稳定性的综合影响，将露天矿边坡划分为四个工程地质分区，为边坡境界优化提供了可靠依据，对不同工程地质分区边坡分别提出了安全控制建议。研究成果可为地质构造复杂的露天矿边坡稳定性研究提供借鉴和参考。     

含煤岩组高边坡稳定分析

边坡是各类工程中一类常见的工程结构。地质条件多种多样导致影响边坡的稳定性的因素也多种多样。本文分析了某工程含煤岩质高边坡内存在煤洞采空区时对边坡的稳定性影响。并对此高边坡进行了数值分析，对其稳定性作出了一定的评价。     

边坡稳定性分析中的能量法及其工程应用

用能量法对边坡稳定性的进行判别，导出有限元数值计算中用能量原理表示的边坡失稳条件；边坡系统的失稳与系统刚度矩阵的非正定性一致。对边坡工程实例的应用表明，在进行有限元计算的同时，用能量原理对边坡稳定性进行判别是可行的，其所得结论不仅与现场实际情况相符，还与极限平衡法得出的结论相一致，且比极限平衡法更加明确。     

某露天矿边坡破坏模式研究

在对某露天矿边坡进行现场工程地质调查基础上，详细研究了岩体结构面特征，划分了岩体结构类型，进而确立了边坡破坏的主要模式，为边坡的稳定性分析提供了可靠依据。     

井下开采过程中边坡稳定性分析

对井下开采过程中边坡稳定性分析进行了探讨，为保证矿山安全生产的边坡防护提出了整治措施。     

金堆城露天矿北部边坡二期综合治理方案研究

通过对露天矿北部边坡的现场勘察，分析了影响北部边坡稳定性因素，提出了三种治理方案，在保证边坡安全的前提下，对三种方案进行了技术经济比较，最后确定了一种方案作为二期综合治理方案。     

钛渣酸解过程中物相变化特征探讨

明确物相变化是剖析钛渣酸解机理和改进酸解工艺的关键点之一.综合应用化学分析、X射线衍射(XRD)分析、矿物解离分析以及扫描电镜形貌分析对某74钛渣酸解过程中主要物相的含量、形貌变化以及Ti、Si两种元素的含量及赋存变化进行了研究.结果表明:钛渣主要由黑钛石和辉石组成,酸解过程中黑钛石含量逐渐减小,辉石含量逐渐增加;反应...     

2004年铁合金市场回顾与2005年展望

2004年国际和国内铁合金价格波动较大，全年价格总体水平较往年有较大增长。2004年我国铁合金行业产销两旺，全年产量和出口量均创历史新高，市场价格较往年也有明显改善。但是，铁合金行业发展过热已引起国家有关部门和业界的高度重视，并相继出台了一系列相关的产业政策和调控、指导性措施，对整个铁合金行业的发展产生了深远影响。文章从生产、消费及进出口等方面对2004年中国铁合金市场进行了分析并对2005年市场前景进行了预测。     

Design and optimisation of charging ingredients and structure in an ironmaking system (Part II)

In order to maximise the reduction of pig iron cost in an ironmaking process, and at the same time ensure the output and quality of the pig iron, a design and optimisation system for the charging ingredients and structure in an ironmaking system was established using metallurgical theory. The system includes six modules, namely, sinter metallurgical performance testing and analysis, sintering burdening design, sinter component and property prediction, blast furnace burdening design, blast furnace batching calculation and ironmaking system burden optimisation. Based on actual production, testing and material balance theory, the system integrated these modules on VB and MATLAB using a series of intelligent algorithms, such as the BP neural network, multiple objective linear programming, genetic algorithms and so on. As a result, the optimum burden composition and structure of the sinter and blast furnace that satisfied all the constraint conditions could be obtained. Standing as a pinnacle of the global ironmaking production, the system can design and optimise not only the sintering burden, but also the blast furnace burden. Compared with the traditional production testing and hand calculation in the ironmaking system, the project can greatly reduce the production risk and greatly increase the calculation accuracy. Industrial application shows that the system is especially beneficial to reduce the ironmaking cost and at the same time ensure the output and quality.     

长流程钢铁企业检化验设施的现代化设计

检化验系统对钢铁企业的进厂原料检验、中间产品检测、出厂产品质量判定等有着重要意义。对钢铁企业检化验系统的设置原则、组成和发展趋势进行了介绍,集中化、智能化和信息化是现代化钢铁企业检化验系统的特点。重点论述了原料取制样系统、原料分析中心、冶炼分析中心和轧钢检测中心的建设设计理念。随着中国智能制造发展,全自动智能检测系统、信息流过程自动化及实验室管理自动化已成为当今钢铁企业检化验系统设计不可避免的趋势。     

Lunar Astronomical Observatories: Design Studies

The best location in the inner solar system for the grand observatories of the 21st century may be the Moon. A multidisciplinary team including university students and faculty in engineering, astronomy, physics, and geology, and engineers from industry is investigating the Moon as a site for astronomical observatories and is doing conceptual and preliminary designs for these future observatories. Studies encompass lunar facilities for radio astronomy and astronomy at optical, ultraviolet, and infrared wavelengths of the electromagnetic spectrum. Although there are significant engineering challenges in design and construction on the Moon, the rewards for astronomy can be great, such as detection and study of Earth‐like planets orbiting nearby stars, and the task for engineers promises to stimulate advances in analysis and design, materials and structures, automation and robotics, foundations, and controls. Fabricating structures in the reduced‐gravity environment of the Moon will be easier than in the zero‐gravity environment of Earth orbit, as Apollo and space‐shuttle missions have revealed. Construction of observatories on the Moon can be adapted from techniques developed on the Earth, with the advantage that the Moon's weaker gravitational pull makes it possible to build larger devices than are practical on Earth.     

热轧不锈钢板酸洗工艺

为去除热轧不锈钢板表面的氧化层与贫铬层,钝化基体,改善表面质量,在热轧退火后需进行酸洗处理。介绍了热轧不锈钢板表面氧化层和贫铬层的组成与结构特征及其对酸洗过程的影响,并对热轧不锈钢板的酸洗体系设计和酸洗工艺开发进行了阐述。中国热轧不锈钢板普遍采用前处理(机械除鳞、中性盐电解等)→硫酸(电解)预酸洗→硝酸-氢氟酸终酸洗的酸洗工艺,旨在通过前处理和预酸洗去除大部分的氧化层,在终酸洗阶段去除残余氧化层及贫铬层,同时实现基体钝化。目前,热轧不锈钢板的酸洗工艺存在酸洗效果不稳定、贫铬层去除不完全、局部腐蚀较为严重等问题,且会产生不同程度的环境污染问题。应该根据不同钢种不同退火工艺条件下的表面氧化层与贫铬层的性质与分布特征,研究开发相应的酸洗体系和酸洗工艺。热轧不锈钢板的环保型酸洗新工艺具有广阔的发展前景。     

Impressions of psychotherapists' offices.

For counseling settings, research suggests that softness, personalization, and order might affect the experience and the perceived expertness, trustworthiness, and social attractiveness of the therapist. This article discusses exploratory studies on college students' perception of the counseling office environment and whether the likely client experience was associated with the softness/personalization and order of the office. As stimuli, the studies used 30 color photographs of psychotherapists' offices viewed from the client's perspective. After obtaining ratings of the characteristics of each office, we obtained ratings from different groups of students of the quality of care and comfort expected in each office (Study 1) and how qualified, bold, and friendly the therapist in the office would be (Study 2). Additional studies examined the likelihood of choosing a therapist based on the office, and the first thought or feeling that came to mind about the office, the therapist, and the patient experience. There were strong correlations in response between groups (by whether they had experienced therapy; their level in school; their gender; and their major, location, and school size). The quality of care, comfort, therapist boldness, qualifications of the therapist, and the likelihood that one would choose a therapist based on the office improved with increases in the office's softness/personalization and order. Friendliness improved with increases in softness/personalization. The office choices, open-ended responses, and reported reasons for the ratings confirmed the importance of softness (comfort) and order. Research should test longer term exposure and behavior. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

液压钢包倾翻装置的结构分析与控制

针对恶劣工况及作业要求对液压倾翻装置的结构、动作、控制进行了全面详细的探究,对典型液压倾翻装置在实际使用过程中的优缺点进行了深入分析。设计了一种钢包倾翻装置和液压控制系统,解决了倾翻机的卡阻问题,提高了倾翻装置的稳定性、承载能力和适用范围。通过计算和设计优化,解决了系统的发热问题,采用多级保护提升了倾翻控制的安全性能,实现了倾翻装置的稳定和精确控制,降低了设备的使用故障。     

Simultaneous and Sequential Photosonolysis of TCE and PCE

Aqueous solutions of trichloroethylene (TCE) and tetrachloroethylene (PCE) were treated in a flow-through reactor equipped with ultrasound and ultraviolet light sources. The reactor was operated as sonolysis (US), photolysis (UV), and simultaneous photosonolysis (UV/US) reactors; then as US, UV, and sequential UV/US reactors with the installation of a partition in the reactor. The reactor without the partition was simulated by using one continuously stirred-tank-reactor (1-CSTR) model, and the reactor with the partition was simulated by using the sequential CSTR model. Through model calibration, the decomposition rate constants and reactor efficiencies for the removal of TCE and PCE were evaluated. The results suggest that the combined effect of UV and US on the decomposition of TCE and PCE is synergistic in both the simultaneous and sequential UV/US modes, that the rate constants of sonolysis and photolysis are greater with the sequential combination than with the simultaneous combination, and that overall efficiency is higher for the reactor with the partition than for the one without it.     

浅谈加强建设工程招投标管理工作的重要性

对于建设工程的招标人来说,重要的是如何找到理想的、有能力承担建设工程任务的合格单位,用经济合理的价格,获得满意的服务和产品。根据建设工程的通常做法,建设工程的招标人均是严格按照法律法规的规定,通过招投标形式选择建设工程任务的实施单位,包括设计、监理、施工承包和供货等单位。可见利用招投标形式选择合格的实施单位,一方面从法律上保证了项目和项目法人的合法性,另一方面,也从技术上和经济上为项目的顺利实施提供了支持和保障。