空压机十字滑道的修复

介绍了采用Belzona高分子修补材料对4L-20／8型空压机十字滑道的修复过程，以及Belzona高分子修补材料的修复工艺和良好的修复效果。     

新型聚合物耐磨涂层材料抗磨蚀性能试验研究

本文对耐磨涂层的抗磨损试验原理及试验方法进行了简要说明,对西北矿冶研究院研制生产的新型聚合物耐磨材料、VS系列耐磨涂料及美国Belzona公司的耐磨涂料等进行了抗磨损对比,试验结果表明,新型聚合物耐磨材料的耐磨性能明显高于其他涂层材料,并具有良好的应用前景。     

2500高炉Z-1皮带电动机齿轮箱的故障诊断

通过对2500高炉Z-1皮带电动机齿轮箱的振动测试与分析，探索了750系列皮带输送机齿轮箱的故障诊断，为该设备的检修提供了理论依据，从而确保了炼铁系统的物料平衡。     

首钢矿业机械厂成功开发全自动调偏托辊

首钢矿业机械厂皮带机分厂，拥有链辊、缓冲托辊、梳形托辊、螺旋托辊、摩擦调偏托辊、注油托辊等6大系列62个品种的托辊生产能力。由于绝大部分托辊产品没有皮带跑偏的调整功能，仅有调整皮带跑偏功能的“摩擦调偏托辊”，在实际运行中的调偏性能又很差，因此出现了市场逐年萎缩的趋势。     

皮带运输机常见故障与解决方法

皮带传输机是工业运输中的支撑性设备,为了实现基于皮带运输机的物料高效率运输,对皮带运输机常见故障展开分析,包括撒料故障、材料运输偏离问题、异常噪声与传输打滑等,为保障传输机的正常运行,提出控制皮带运输机撒料点、调整机器驱动托辊、定期更换机器零构件等解决措施,解决皮带运输机在运输材料中可能出现的故障,提升机械运转效率。     

高炉主皮带修补新工艺

1高炉主皮带实际使用状况 由于高炉主皮带更换时间长、成本高，因此，在设计时，主皮带使用周期按一代炉龄12a考虑。而在实际工作中，主皮带的机械破损经常发生，其表现形式为皮带表面破损、皮带边沿钢丝裸露、非工作面起皮等，如不及时修补将影响主皮带的正常使用寿命，在我国已发生多起因主皮带损坏而被迫更换的事故，直接影响到高炉的正常生产。     

PBC－01型皮带综合保护装置的应用

把ＰＢＣ－０１型皮带综合保护装置运用到我矿选矿厂４＃皮带运输机中，主要用于防止皮带打滑磨损。当主动轮运行速度恒定时，皮带速度低于预定值，就发出响铃报警信号，数秒后停皮带开关。生产实践表明：当皮带速度低于预定值为１．９ｍ／ｓ时，皮带发生打滑，响铃报警。该装置应用，得到满意效果。     

运输皮带胶接技术应用

分析影响运输皮带胶接接头强度的因素，介绍运输皮带的胶接工艺，提出提高皮带维修质量的措施，延长皮带使用寿命。     

原料区露天皮带拉绳开关改造

烧结厂原料区露天皮带拉绳开关在使用过程中经常出现故障,且故障查找时间长。通过对露天皮带拉绳开关进行改造,降低了拉绳开关故障率,减少了维修人员工作量,降低了材料消耗。     

皮带上料机皮带跑偏原因及纠偏分析

系统的分析了皮带上料机皮带跑偏的原理和原因及跑偏现象，提出皮带上料机的制造，安装质量及合理操作是皮带防偏的主要途径。还分析了承载托辊前倾的纠偏方法，并对皮带运行的在线监测及自动纠偏系统进行了研究。     

Slab-on-Grade versus Framed Slab

This paper presents comprehensive and practical engineering review (not mathematics or computer science paper) of the observed behavior of the two types of slabs that have been used for the bottom floor slabs, at grade and underground, of buildings in the United States and overseas. The typical design of the slab-on-grade (SOG) built in the United States is described. The design requires only nominal reinforcing steel, but modern day design also requires ground preparation and improvement as necessary, including underslab perforated drainage pipe network embedded in the granular subbase, riser pipes, and a series of pumps. Sealing at all slab isolation joints and waterproofing membrane or water barrier system are provided for water tightness. The framed slab is supported directly on the building framing and on the building foundation. The design can accommodate the soil and underground water pressure and in itself is watertight as the slab is cast monolithically with the structural walls and footings. The behavior of the SOG depends so much on the behavior (soil properties) of the soil strata on which the slab is resting on. It is sensitive to the variation of the soil conditions at and around building foundations, leading to uneven bumpy and cracked slab and leaking basement. These were demonstrated in the report of short- and long-term performances of various projects in Thailand and United States in the past 25 years. The paper refers to various analysis and design techniques that may be used to improve the design of both the SOG and the framed slab for serviceability and economy. It is concluded that both types of slabs may be selected to suit the functions and serviceability requirements of the buildings. The SOG requires less concrete and reinforcement than those for the framed slab counterpart, but when all other factors are considered including additional underslab drainage and pump system, operating, and long-term performance and maintenance, the overall costs of both slabs may not be far apart, yet the performance and integrity of the framed slab will certainly be superior.     

Static and Dynamic Data Reconciliation for an Irrigation Canal

This paper deals with the problem of fault detection and isolation in irrigation canals. We have developed a method which combines static and dynamic data reconciliation for the validation of measurements, detection, and isolation of sensors and actuator faults and reconstruction of missing data. Static data reconciliation uses static models at a regulation gate to validate measurements and detect sensor and actuator faults. It also enabled us to detect a drift in the stage discharge rating curve. The dynamic data reconciliation uses additional measurements and a dynamic model of the canal in order to validate measurements and detect faults and withdrawals. The combination of the two methods allowed us to distinguish between withdrawals and faults. Both methods are evaluated on measurements from a real irrigation canal located in the South of France.     

Emotionality, emotion regulation, and adaptation among 5- to 8-year-old children.

This study investigated relations between emotionality, emotion regulation, and children's behavioral adaptation in a longitudinal design. Mothers rated emotionality and emotion regulation related to anger, fear, and positive emotions-exuberance for 151 children at age 5 and later at age 6 years 6 months. Emotionality and emotion regulation measures were modestly related. Preschool ratings at age 6 (n=125), maternal ratings at age 6 years 6 months (n=133), and elementary school ratings at age 8 (n=135) of problems and competence were also collected. High anger emotionality and low regulation of positive emotions and exuberance predicted externalizing problem behavior and prosocial behavior. High fear emotionality and low fear regulation predicted internalizing problem behavior. There were few interactive effects of emotionality and regulation. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Relationship of hardiness and religiousness to depression and anger.

Both hardiness and religiousness share spirituality, in the sense of searching for meaning in one's life, and have been shown to have a buffering effect on stresses that maintains and enhances performance, morale, and health. This study investigates how hardiness and religiousness compare in their relationship to depression, anger, and the coping and social support mechanisms whereby they may have these relationships. Participants were military and governmental personnel who completed accepted measures of hardiness, religiousness, and other variables on a volunteer basis. Correlational and multiple regression analyses showed that, by comparison with religiousness, hardiness has the larger and more comprehensive negative relationship with depression and anger, and positive relationship with coping and social support. The conceptual and empirical implications of these findings are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

表面高硬度和耐腐蚀性高强贝氏体钢制备新工艺

 铁路运输和工程机械等领域对贝氏体钢的耐磨性和耐腐蚀性具有较高的要求,而表面渗硼、渗铬处理是常见的提高表面硬度和耐腐蚀性的有效方法。在已有的研究工作中,获得贝氏体基体的等温淬火热处理和表面改性处理是分开进行的,工序复杂且生产成本增加。提出制备表面高硬度、高耐腐蚀性中碳高强度贝氏体钢的新工艺,将表面改性处理和贝氏体等温淬火工艺一体化,既可以简化制备工艺,又降低了生产成本、减少了环境污染。采用渗硼/铬-等温淬火一体化新工艺制备表面高硬度、高耐腐蚀性中碳高强贝氏体钢,通过组织观察、硬度测试和腐蚀试验等,对比分析了渗硼-等温淬火和渗铬-等温淬火一体化工艺对中碳高强贝氏体钢组织和性能的影响。结果表明,与仅经过等温淬火工艺处理相比,渗硼/铬-等温淬火一体化工艺处理后,贝氏体钢表面均形成了维氏硬度超过1 500HV的渗层(约为贝氏体基体硬度的3.3倍),且在0.5%NaCl溶液中的腐蚀性能明显提高。暴露在0.5%NaCl溶液中3 h后,渗硼层表现出更好的耐腐蚀性能。两种一体化工艺均可制备表面渗层、基体以贝氏体相为主的新型高强贝氏体钢,在相同处理时间下,与渗铬-等温淬火一体化工艺相比,渗硼-等温淬火一体化工艺处理的渗层生长速率快,且渗硼层与贝氏体钢基体的结合强度更高。     

C. Shaler Smith

Smith was one of the premier bridge builders of the post-Civil War period. He started his bridge building career under Albert Fink on the Louisville and Nashville Railroad. During the Civil War, he designed and built a powder factory for the Confederacy at Augusta, Ga. After the war, he formed Smith and Latrobe Co. and later The Baltimore Bridge Company with Benjamin and C. H. Latrobe. He worked closely with James Eads on the St. Louis Bridge and designed and built the long iron easterly approach to the bridge. He designed and built some of the major viaducts, swing, and fixed span bridges in the United States, Australia, and Peru, and finally innovative cantilever bridges over the Kentucky, Mississippi, and St. Lawrence Rivers.     

炼铁生产管理系统的开发与实践

介绍了天铁炼铁生产管理系统开发的情况,该系统采用ERP、MeS、PcS三层之间的数据集成,实现了炼铁生产物料跟踪,生产计划和配料管理及动态调整。提高了炼铁生产效率和铁水质量,降低了原、燃料消耗,达到炼铁生产管控一体化与生产过程优化。     

Intelligent Adaptive Cyber-Physical Ecosystem for Aerospace Engineering Education, Training, and Accelerated Workforce Development

Transformative changes are on the horizon in aerospace engineering education and learning in general. These changes are attributable, in part, to the developments of a number of aerospace, learning and other leading-edge technologies and their synergistic combinations and convergence. The related technologies include ubiquitous, cloud, and petascale/exascale computing; ultrahigh-bandwidth networks; pervasive wireless communication; intelligent autonomous robotics; artificial general intelligence; powerful game engines and facilities; networked immersive virtual environments and virtual worlds; augmented and enhanced reality; and novel human-technology interfaces. This paper describes some of the frontiers of, and challenges in, future aerospace systems and the drivers for transformative changes in aerospace engineering education. The need to have a holistic perspective and a comprehensive approach for aerospace education, research, training, and accelerated workforce development is outlined. A starting point to accomplish this task is the development of an intelligent adaptive cyber-physical ecosystem for the aerospace workforce. The continuously expanding major components of the ecosystem include integrated knowledge discovery and exploitation facilities; novel agent-supported visual simulations (with cognitive learning and understanding abilities); immersive three-dimensional (3D) virtual world facilities; intelligent, multimodal and humanlike interfaces; and smart mobile wireless devices. The ecosystem will provide timely, engaging, personalized/collaborative, and tailored visual learning. It will stimulate creativity and innovation and prepare the learners to work in future global virtual collaborative enterprises and become leaders in a world of growing complexity.     

Review of Ego defenses: Theory and measurement.

Reviews the book, Ego defenses: Theory and measurement by H. R. Conte and R. Plutchik (see record 1994-98641-000). This book comprehensively examines one of the most influential concepts in psychotherapy and counseling, that of defenses and their role in the therapeutic process. It is very well-written and exhaustive in the sense that covers a wide range of issues related to defenses from conceptual and theoretical to issues of clinical application and measurement. Stemming out of a psychoanalytic/psychodynamic perspective the authors revisit the area of defenses and provide an all encompassing presentation of the major issues surrounding the importance, function and usefulness of defenses in psychotherapy and counseling. The book is divided in two parts. The first examines theoretical and conceptual issues surrounding ego defenses and provides several theories and models for comprehending ego defenses. The second concentrates on the methods used to measure, evaluate and objectify ego defenses. The editors' effort to include a wide spectrum of authors who present different conceptualizations, theoretical approaches, and a variety of measurement methodologies is successful and should be commended. The only reservation the reviewer holds about this book is related to the fact that the concept of ego defenses is closely related to insight oriented therapies and approaches and to a constructivist epistemology of human nature. As such, it would prove useless to these clinicians who adhere to behavioral or existential epistemological perspectives to explain and comprehend human nature. All in all, this book is a necessary addition to all those—academics, clinicians and researchers—who in one way or another deal with emotions, human functioning, and psychotherapeutic change. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Deterioration of Terrazzo

Terrazzo installation is often perceived as an art, left to individual contractors and craftsmen to implement tried-and-true application and repair methods. In this context, architects and engineers often relegate themselves to a minimal supervisory role during construction and planning. The writers have found several recurring instances of terrazzo cracking problems during construction as well as deterioration that could be prevented or minimized with attention to the responsibilities of all parties to communicate throughout the design process. Causes are often related to shrinkage of terrazzo, concentrated stresses attributable to configuration of divider strips, and impact loads. To objectively minimize deterioration rates of terrazzo, an experimental program was initiated to evaluate performance. Testing consisted of compressive strength and linear shrinkage tests on cementitious terrazzo under varying curing conditions and a durability test that applied a cyclic gravity wheel load to gaps at the edge of terrazzo tiles. The latter test used metal wheels and considered parameters of material type, gap size between terrazzo edge and adjacent steel plate, wheel diameter, vertical offset of tile, and vertical load being applied. Results indicated that proper curing of cementitious terrazzo is critical to achieving compressive strength and minimizing early shrinkage. For the durability test performed, epoxy terrazzo exhibited significantly less deterioration. Durability of terrazzo is affected primarily by gap size, upward vertical offset, and weight applied. Small wheel size and direction of loading can also contribute to deterioration. It is important that architects, engineers, and contractors understand methods that ensure material properties, minimize stress concentrations, and use appropriate divider strip spacing to minimize deterioration attributable to cracking and impact load. These steps will ensure the visual appearance and durability expected by the project team.