基于问题原型的采矿方法选择专家系统的研究

本文针对矿山的实际需要，以矿山工作人员应用对象，在充分分析矿块回采问题的基础上，提出了三种问题原型，建立了领域问题的知识库，编制了推理机，用户接口，解释，知识库管理等程序模块，形成了采矿专家系统的框架，为进一步开发奠定了基础。     

我国钢铁生产技术的发展及对耐火材料的需求

介绍了我国１９８０年以来钢铁生产技术的发展情况，论述在了炼铁，炼钢，思负生产中所采用了新技术，新设备，对耐火材料在品种，性能方面提出了要求，评价了国内外耐火材料界近年来开发的耐火产品的应用效果，提出了发展我国耐火材料生产技术的建议。     

铝冶炼供电系统节能降耗的措施

湖北丹江哆嗦业公司三期技改工程供电整流系统采用了较多的新技术，新设备，新工艺，在该前提下，对运行参数进行详细研究，达到合理利用电能的目的，同时采用全面质量管理工作的方法，成功地改善了电流的稳定性，减少了设备停运率，为安全生产提供了有力的保障，达到了节能降耗的目的，取得了一定的经济效益。     

基于FPO的抗压强度测试机的设计

为了提高球团矿抗压强度的测试精度，通过分析球团矿在挤压过程中的受力情况，设计并制作出一种抗压强度测试机。该机采用了液压传动，球团矿匀速加压，并采用了以松下FPO系列PLC为核心，人机界面采用GT01触摸屏的控制系统。其软件设计中采用了增量限幅、多重比较判断等方法，消除了瞬时干扰，能实时、准确地测量出球团矿的抗压强度，实现了球团矿抗压强度测试过程的自动化。     

三炼钢真空处理RH的顶枪计数系统的改进

三炼钢真空处理RH的顶枪计数系统的改进，有效地消除累积误差，大幅缩短偏差调整时间，延长了计数器的使用寿命，提高了系统的稳定性，保证了人身安全，为生产提供了保障。     

氯化锌生产的技术改进

氯化锌是株冶劳服公司的一个主要产品，产量，质量，出口量为全国同行业之首。自７０年代投产以来，围绕着产量，质量，设备，减耗，降低成本进行了艰辛的探索，做了大量的技术改进和改造，取得了显著成效。     

焦炭质量的提高与炼焦工艺的发展浅议

介绍了我国煤炭资源，冶金焦炭质量的现状，分析了影响国内焦炭质量的因素，认为最主要的因素是炼焦煤的性质和备煤，炼焦的工艺条件，并根据我国生产情况，提出了提高焦炭质量的办法。此外，还对国内炼焦工艺的发展进行了阐述。     

未来工厂的现状代

本文讨论了日本铜铅锌炼厂未来现代化的问题，牵涉到冶炼成本，环境保护和金属再生等方面，关于冶炼成本，考虑到日元不断增值，阐述了降低人工成本的重要性，此外，还讨论了利用专家系统，提高作业效率和减少运行成本都是有益的，在环境保护方面，由于硫的回收达到了很高的水平，二氧化硫空气污染问题已经解决，然而，根据更严格的污水排放标准，仍有问题有待解决。对铜铅锌金属再生现状进行了评论，关于铅蓄电池废料，迫切需要建立     

连铸中间包盖板的研制

在对连铸中间包盖板使用情况调查及失效分析的基础上，根据使用要求，设计了金属一耐火材料复合中间包盖板，研制了ZG30V铸钢的盖全和低水泥浇注料盖板内衬，试制出了结构合理，重量轻，保温隔热效果好的新型连铸中间包盖板，经过实际应用达到了预期的效果，满足了生产需要，取得了较好的技术经济指标。     

控冷电磁站搬迁方案的改进

通过大量的调查研究，查清了电磁站内渗漏水的缺陷，提出了解决方案和具体操作方法，改变了原定的搬迁方案，不仅彻底地消除了缺陷，还节约了大修费，缩短了工期，为生产创了可观的效益。     

Identification and changes in prejudice and in authoritarianism.

Ss "were first given the F Scale and a measure of anti-Negro prejudice… . Four weeks later they read a case history of a person who was prejudiced and authoritarian. Half of the subjects were told that the person in the case history was similar to themselves in background and objective personal characteristics. The other half… that the person was dissimilar to them. Three weeks later the F Scale and the anti-Negro prejudice scale were readministered. It was found that those low in prejudice at the first administration became more prejudiced but only if they were told the case history was about someone like themselves… . These results were interpreted in terms of the social support for suppressed 'wrong' feelings and in terms of the pressures to achieve cognitive consistency in one's self-concept." From Psyc Abstracts 36:04:4GD65S. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

MPD and DNA bending in crystals and in solution

Bending of 15 to 24 degrees is observed within crystal structures of B-DNA duplexes, is strongly sequence-dependent, and exhibits no correlation with the concentration of MPD (2-methyl-2,4-pentanediol) in the crystallizing solution. Two types of bends are observed: facultative bends or flexible hinges at junctions between regions of G.C and A.T base-pairs, and a persistent and almost obligatory bend at the center of the sequence R-G-C-Y. Only A-tracts are characteristically straight and unbent in every crystal structure examined to date. A detailed examination of normal vector plots for individual strands of a double helix provides an explanation, in terms of the stacking properties of guanine and adenine bases. The effect of high MPD concentrations, in both solution and crystal, is to decrease local bending somewhat without removing it altogether. MPD gel retardation experiments provide no basis for choosing among the three models that seek to explain macroscopic curvature of DNA by means of microscopic bending: junction being, bent A-tracts, or bent general -sequence DNA. Crystallographic data on the straightness of A-tracts, the bendability of non-A sequences, and the identity of inclination angles in A-tract and non-A-tracts B-DNA support only the general-sequence bending model. The pre-melting transition observed in A-tract DNA probably represents a relaxation of stiff adenine stacks to a flexible conformation more typical of general-sequence DNA.     

Research and teaching in social and preventive medicine and in public health

Both public health and social and preventive medicine are characterised by the common goal of promoting, maintaining and improving health and preventing disease, and both are concerned with a population-related, preventive and environmental perspective. But whereas public health is interdisciplinary and goes far beyond the medical focus, social and preventive medicine is medically based and forms a bridge between public health and medical practice. Research in a department of social and preventive medicine serves to support preventive and medico-social activities in medical practice as well as in public health. This is illustrated by results from research conducted at the author's department during the last twenty years. Examples are research in support of smoking cessation activities, and research used for the planning of care for the elderly. Both the research and the teaching activities of the department take into account the population focus of public health as well as the focus on individual medicine in clinical practice.     

Cholestatriene and ergostatetraene as in vivo and in vitro membrane and lipoprotein probes

The fluorescent cholesterol analogues, cholesta-5,7,9(11)triene-3-beta-ol (I) and ergosta-5,7,9(11)-22-tetraene-3-beta-ol (II), have been shown to be readily incorporated by various tissues and lipoproteins in rabbits maintained on diets supplemented with these fluorophores. Human erythrocytes and lipoproteins were also found to incorporate I and II in vitro under physiological conditions. The thermotropic behavior of the lipoproteins and erythrocyte membranes labeled with sterols I and II was evaluated using temperature-dependent fluorescence polarization and/or fluorescence intensity spectra. Erythrocyte ghosts, fluorescently labeled in vivo (rabbit) or in vitro (rabbit and human), were found to undergo a reversible thermally induced transition at 24 +/- 2 degrees C. A similar transition occurring at higher temperatures was also observed in fluorescently labeled human and rabbit LDL particles. Furthermore, the transition temperatures and relative microviscosities of the in vivo labeled rabbit LDL particles were found to be dependent upon the amount of sterol present in the rabbits' diet. No evidence of a similar thermotropic transition was observed in any of the HDL particles. These results are discussed in terms of a thermotropic reordering of cholesterol clusters existing in the erythrocyte membrane and of the cholesteryl ester core present within the low density lipoprotein particle.     

Differences and similarities in adjuvant chemotherapy in mouse and man

Supernatants obtained after incubation of tumor patient lymphocytes with the homologous tumor-associated antigen (TAA) elicit adherence inhibition in normal guinea pig peritoneal cells. From 37 tested patients with different carcinomas, the supernatants of 30 caused more than 10 per cent adherence inhibition (breast cancer 11/11, lung cancer 7/8, colon cancer 6/7, stomach cancer 6/11). Besides 40 healthy blood donors were tested to a panel of TAA. There was a reactivity more than 10 per cent only in 2 cases. The supernatants of 14 patients with nonmalignant disorders produced adherence inhibition more than 10 per cent in 2 cases. By incubation of tumor patient lymphocytes with the human encephalitogenic protein the supernatants of 19/27 patients elicited a positive reaction. The results suggest that anti-tumor immunity can be detected in an indirect heterologous adherence inhibition system.     

Protein phosphorylation and taurine biosynthesis in vivo and in vitro

Taurine is known to be involved in many important physiological functions. Here we report that both in vivo and in vitro the taurine-synthesizing enzyme in the brain, namely cysteine sulfinic acid decarboxylase (CSAD), is activated when phosphorylated and inhibited when dephosphorylated. Furthermore, protein kinase C and protein phosphatase 2C have been identified as the enzymes responsible for phosphorylation and dephosphorylation of CSAD, respectively. In addition, the effect of neuronal depolarization on CSAD activity and 32P incorporation into CSAD in neuronal cultures is also included. A model to link neuronal excitation and CSAD activation by a Ca2+-dependent protein kinase is proposed.     

Chemo- and baroresponses differ in African-Americans and Caucasians in sleep

To determine sleep effects on baro- and ventilatory responses to transient chemo- and barostimulation in African-Americans and Caucasians, 26 nonobese normotensive young subjects (13 African-Americans and 13 Caucasians) were studied awake and in non-rapid-eye movement (NREM) and rapid-eye-movement sleep during induced transient hypoxemia (N2), hypertension (phenylephrine, PE), and concomitant hypoxemia and hypertension (N2 + PE). Arterial blood pressure was recorded by plethysmographic volume clamp, minute ventilation by pneumotachograph, and arterial O2 saturation by pulse oximeter. For all subjects, chronotropic baroresponse (Deltapulse interval/Deltasystolic blood pressure, where Delta is change) increased with NREM sleep (P = 0.007). Baroresponse slope was greater in Caucasians than in African-Americans (ANOVA, P = 0.02). Hypoxemic ventilatory response (Deltaminute ventilation/Deltaarterial O2 saturation) was greater in African-Americans than in Caucasians in NREM sleep (P = 0.01), as was hypoxemic attenuation of baroresponse (N2 + PE, P = 0.03). These data suggest sleep-related differences in arterial chemo- and baroreceptor responses in normal young African-Americans and Caucasians, which may have implications concerning development of systemic hypertension.     

Interaction in systems Wc-Ni-Al and Wc-NiTi in sintering and impregnation

Translated from Poroshkovaya Metallurgiya, No. 5(317), pp. 77–80, May, 1989.     

Photoreactivation in bacteria and in skin

In many procaryotic and eucaryotic cells, photoreactivating enzyme mediates light-dependent repair of UV-induced damage: the enzyme binds to a pyrimidine dimer in DNA, and, on absorption of a photon (300-600 nm), specifically monomerizes the dimer, thus repairing the DNA. Photoreactivating enzyme has been found in human tissues and human cells in culture; human cells in culture can photoreactivate cellular dimers, and can mediate photoreactivation of Herpes (human fibroblasts) and Epstein-Barr virus (human leukocytes). Measurements of pyrimidine dimer formation and repair in human skin indicate that detectable numbers of dimers are formed at 1 minimal erythemal dose, that the dimers are rapidly removed in skin kept in the absence of light, and they are more rapidly removed when the skin is exposed to visible light.