应用金属迭片挠性联轴器改造D1000-32型风机

使用液力偶合器因故障频繁，对高炉稳产、高产造成严重威胁，而且维修费用较高，对偶合器改造后，应用金属迭片挠性联轴器其故障率、维修费用都很低。     

液压偶合器在电动煤气鼓风机系统的调速与节能作用

本文介绍了液力偶合器在焦炉煤气鼓风系统改造中应用实例，调速、节能效果好。     

粗液泵的节能改造

粗液泵原采用液力偶合器调速系统，因液力偶合器经常出现故障，满足不了生产需要，改为变频调速后，效果良好，有非常显的节能效果，且大大提高了自动化水平，中最后还谈到了一些变频器改造中应注意的问题。     

双偶合器泵调节控制方式

本文介绍贵冶二期工程改造完工后，随着水质、水量及生产需求发生变化，原控制方式己不能满足生产需要，通过对原偶合器泵选型改造及运行比较，确立经济合理调节控制方式，保证生产顺行。     

电动给水泵几种调速方式的比较分析

分析、比较了液力偶合器、高压变频器和永磁调速的各自特点,并对65 MW钢铁行业自备电厂2000 kW电动给水泵调速方式的改造方案进行了经济对比,实践证明,采用永磁调速在给水泵改造上具有较好的节能效果。     

调速型液力偶合器在焦炉煤气鼓风机上的应用

分析焦炉煤气风机系统存在的问题及原因;阐述调速型液力偶合器的工作原理与特点,根据离心风机的特点,在不改变电动机的情况下,通过调速型液力偶合器改造煤气风机,取得了预期的效果.     

电动给水泵几种调速方式的比较分析

分析、比较了液力偶合器、高压变频器和永磁调速的各自特点,并对65MW钢铁行业自备电厂2000KW电动给水泵调速方式的改造方案进行了经济对比,实践证明,采用永磁调速具有较好的节能效果,在给水泵改造上具有很好的推广价值。     

液力偶合器在高炉喷煤抽风机上的应用分析

液力偶合器在高炉喷煤抽风机上的应用分析广东省韶钢集团公司戴跃年前言本文介绍韶钢集团公司炼铁厂通过喷煤工序中抽风机使用调速型液力偶合器，对整个喷煤系统设备运行状况和电机运行参数的比较及电机节电量的计算，说明了用调速型液力偶合器对鼠笼式电机所驱动的风机负...     

“在兄弟刊物上”

液力偶合器在起重机上的应用/万力//起重运输机械。——1991,(12).——19～22 在起重机上采用液力偶合器可简化起重机机构及控制系统,改善运转性能。本文介绍在起重机上采用液力偶合器的实例,分析其运转工况的特点,并介绍采用液力偶合器的起重机机构设计方面的特殊性,提出了设计的原则及基本方法。提高起重机吊钩使用寿命的方法/葛佐正//起     

液力偶合器的应用

介绍了液力偶合器在带式输送机、大型风机和工业泵上的应用,为一般性选用液力偶合器提供参考。     

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;反应过程中,酸主要以扩散的形式渗透到黑钛石颗粒表面及内部孔缝,从而分解黑钛石;酸解前后,辉石形貌无明显变化,但随反应深入,其解离度逐步提高;钛渣中Ti元素主要赋存于黑钛石中,Si元素主要赋存于辉石中,部分赋存于黑钛石和黑钛石-辉石混合物中,反应过程中Ti元素主要由黑钛石向TiOSO₄迁移,部分迁移至黑钛石-辉石混合物中;Si元素迁移并主要富集于辉石以及黑钛石-辉石混合物中。     

Evaporation Research: Review and Interpretation

Literature regarding evaporation from soil, wet plant surfaces, and sprinkler droplets was examined, normalized, and interpreted. Much of the evaporation literature is difficult to compare and interpret; this paper offers comparisons and discussions of various findings by others as well as by the writers. Techniques of measuring and estimating evaporation from irrigation and rainfall are discussed. The partitioning between increased evaporation and decreased transpiration from a variety of research is quantified. Factors that impact the various forms of evaporation are listed and quantified. This review and summary will provide practitioners and researchers with theoretical and practical guidance on measurement techniques and estimates of evaporation under a wide range of conditions.     

Coupled Large Strain Consolidation and Solute Transport. I: Model Development

The development of a numerical model, CST1, for coupled large strain consolidation and solute transport in saturated porous media is presented. The consolidation algorithm is one-dimensional and includes the capabilities of a previous code, CS2, with the addition of time-dependent loading, unload/reload effects, and an externally-applied hydraulic gradient. The solute transport algorithm is two-dimensional and accounts for advection, longitudinal and transverse dispersion, first-order decay reactions, and linear equilibrium sorption. Solute transport is consistent with temporal and spatial variations of porosity and seepage velocity in the consolidating layer. The key to the transport model is the definition of two Lagrangian fields of elements that follow the motions of fluid and solid phases separately. This reduces numerical dispersion and simplifies transport calculations to that of dispersion mass flow between contiguous fluid elements. The effect of relative numerical resolution of fluid and solid elements on the accuracy of sorption/desorption is also discussed. This paper presents the theoretical and numerical development of the CST1 model. A companion paper presents verification checks of CST1 and the results of simulations that illustrate the significance of consolidation-induced solute transport for some interesting numeric examples.     

Sham reasoning, Humpty Dumpty, and the burden of proof.

Slife and Reber ask of psychologists that they recognize their prejudice against theism and the incompatibility between theistic and naturalistic worldviews. Yet, the subtext of their article is that theism and naturalism are equally valid and that psychology’s secularism is a mistake. Given that theism is not beyond reason, the only sufficient ground for charging psychologists with prejudice is if (i) theism has survived serious attempts at conceptual and empirical test, and (ii) psychology ignores or disguises this fact. So, the grounds for believing in the reality of a supernatural existent are highly relevant to the authors’ allegation. However, their concept of God affords no such grounds. They disavow the logic involved in the ordinary meaning of the term “incompatible” and they ignore a crucial distinction between conditions of existence and qualities of things or processes. The consequence is that either God is this-worldly, and there is no ontological basis to Slife and Reber’s incompatibility thesis, or God’s mode of existence is quite different from the mode of existence of ordinary things and all the problems of dualism follow. Either way, their charge of prejudice is without foundation. The burden of proof rests with the defender of theism and, for now, psychology’s secularism can be considered a mark of the discipline’s (sometimes questionable) rationality. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Observed & experiential integration (OEI): Discovery and development of a new set of trauma therapy techniques.

Psychotherapy integration leaders have recently asserted that the future of psychotherapy will involve incorporation of neuroscience. In the past 18 years, techniques have been discovered and developed to treat trauma and dissociation at all three neurobiological levels of Porges' (2001, 2007) polyvagal theory. This approach is known as Observed & Experiential Integration (OEI). The originator incorporated elements of Focusing, Eye Movement Desensitization and Reprocessing, and Educational Kinesiology. OEI theory emerged from experiential psychotherapy, and relational psychoanalytic and behavioral concepts were assimilated during 45,000 hours of psychotherapy. Five sets of OEI techniques are used for titration of affective and somatic intensity, reduction of negative transference, and deepening of social connection. OEI involves neuro-activation & microattunement (NAMA). It has been applied with body therapies and neurotherapy and used with children, couples, and families. OEI has also been applied to addictive and self-destructive urges, panic attacks, and eating disorders. Case examples illustrate applications of this treatment. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Contractor Performance Prediction Model for the United Kingdom Construction Contractor: Study of Logistic Regression Approach

An accurate prediction of contractor potential is of vital importance during contractor selection and evaluation process. Such prediction enables identification and classification of contractor performance to ease the selection process. This paper outlines the use of clients' tender evaluation preferences for predicting a contractor performance via a logistic regression (LR) approach. A total of 31 clients’ tender evaluation criteria were selected to develop a LR model for predicting contractor performance. The proposed model was developed based on 48 of United Kingdom public and private construction projects and validated in 20 independent cases. It was found that 75% of the cases correctly and the model statistically accurate for contractor performance prediction, where the input variables consist of nominal and interval data. The paper summarized techniques and advantages of LR analysis and discussed literature findings of contractor selection and evaluation methodologies undertaken by construction researchers and commentators from the United Kingdom and Northern America.     

Design Error Classification, Causation, and Prevention in Construction Engineering

Construction and engineering practitioners have found it increasingly difficult to learn from their mistakes, particularly with regard to the prevention, identification and/or containment of design errors. Yet, design errors have been the root cause of numerous catastrophic accidents that have resulted in the death and injury of workers and members of the public. This paper examines and classifies the nature of error and design error causation in construction and engineering projects. A review of the normative literature revealed that design errors are caused by an array of factors that can work interdependently. A generic framework is developed that classifies design error according to people, the organization, and project is presented. The paper suggests that people, over and above organizational and project management strategies, have the greatest propensity to reduce errors through the process of situated learning and knowing. This is because the working environment provided by an organization and the processes used to deliver construction and engineering projects influence the nature and ability of people to undertake tasks. Consequently, there is no single but rather a multitude of strategies that need to be adopted in congruence to reduce design errors so that safety and project performance are ameliorated.     

Comparison of Arsenate, Lead, and Cadmium Adsorption onto Aged Biofilter Media

Many biological water treatment plants for removal of iron and manganese from groundwater are in place for quite a long time, and thus their filters are aged—naturally coated with metal oxides and associated biomass. The particular reactivity and high adsorption capacity of these biogenic surface coatings make them potentially applicable for cost effective removal of arsenic and other heavy metals from contaminated water. However, the nature of interaction between various toxic elements and the composite materials in biological filters is not well understood. This study combines macroadsorption experiments with electron probe analysis to evaluate the adsorption properties of the biogenic surface coatings of an aged biofilter medium (BFM) for cationic lead and cadmium as well as arsenate anion. Results of batch adsorption showed that BFM has higher adsorption capacity for lead and cadmium as compared to arsenate anion. At pH 5.5, the maximum adsorption capacities of the medium for As(V), Pb(II), and Cd(II) were 17.03-, 80.77-, and 179.05-mg/g surface coatings, respectively. However, the column performance of BFM for Cd(II) was rather low. In particular, the breakthrough adsorption capacities (qb) of the BFM for As(V), Pb(II), and Cd(II) were 0.247-, 31.168-, and 4.084-mg/g surface coatings, respectively. These values represent about 1.5, 38.6, and 2.3% of the respective theoretical maximum adsorption capacities (qmax) of BFM for these metals. Data from the X-ray electron probe analysis corroborated well with that of the macroadsorption experiments. Results of this study strongly suggest that the Mn/Fe ratio and the presence of preadsorbed competing ions were two of the principal characteristics of the BFM, governing its affinity and adsorption capacity for different toxic metals.     

Management of Fluid Mud in Estuaries, Bays, and Lakes. II: Measurement, Modeling, and Management

Techniques for measurement, modeling, and management of fluid mud are available, but research is needed to improve them. Fluid mud can be difficult to detect, measure, or sample, which has led to new instruments and new ways of using existing instruments. Multifrequency acoustic fathometers sense neither density nor viscosity and are, therefore, unreliable in measuring fluid mud. Nuclear density probes, towed sleds, seismic, and drop probes equipped with density meters offer the potential for accurate measurements. Numerical modeling of fluid mud requires solving governing equations for flow velocity, density, pressure, salinity, water surface, plus sediment submodels. A number of such models exist in one-, two-, and three-dimensional form, but they rely on empirical relationships that require substantial site-specific validation to observations. Management of fluid mud techniques can be classified as those that accomplish: Source control, formation control, and removal. Nautical depth, a fourth category, defines the channel bottom as a specific fluid mud density or alternative parameter as safe for navigation. Source control includes watershed management measures to keep fine sediment out of waterways and in-water measures such as structures and traps. Formation control methods include streamlined channels and structures plus other measures to reduce flocculation and structures that train currents. Removal methods include the traditional dredging and transport of dredged material plus agitation that contributes to formation control and/or nautical depth. Conditioning of fluid mud by dredging and aerating offers the possibility of improved navigability. Two examples—the Atchafalaya Bar Channel and Savannah Harbor—illustrate the use of measurements and management of fluid mud.