3#750m^3高炉炉顶均放系统改造

针对炼铁厂3#750m^3高炉炉顶均放系统存在的二次均压无法正常使用，均压放散阀无备用等缺陷，通过分析论证和计算，对其进行了合理改造，取得预期效果。     

三钢4#高炉炉顶均排压管道及其设备改造设计

高炉炉顶均排压系统是高炉生产投料工艺的重要环节,是保证高炉矿料顺行的关键.设计制造时,均排压管道从称量料灌顶部引出,并在管道上安装相关设备.均排压阀设备的密封可靠性以及管道的畅通性,直接关系到高炉的稳定生产.本文着重介绍炼铁厂4#高炉炉顶均排压管道及其设备在生产使用中存在的不足,并采取一系列优化改造措施,使之满足高炉生产要求.     

基于自控算法的均压回收对高炉产量的影响

本文介绍了通过自动化措施削弱,高炉冶炼中因增加均压煤气回收工序对高炉产量的影响。本改造通过自动化程序算法节约均压回收流程总耗时后,再变更阀门的驱动方式,从而把由此套环保设备的增设对高炉产量的影响一降再降。     

太钢大型高炉炉顶均压控制

为了提高高炉冶炼系数,多出铁,减少能源消耗,企业通常尽量采用炉顶高压操作。大型高炉由于炉顶压力较高,在采用煤气一次均压后炉顶与料罐的压力差一般大于0.015 MPa,这就必须用氮气进行二次均压后才可以进行上料操作。本文简单介绍了太钢1 650 m3大型高炉与4 350 m3特大型高炉的炉顶均压控制原理。     

邯宝高炉均压煤气回收技术应用与研究

对邯钢邯宝炼铁厂两座3200 m3高炉炉顶料罐均压煤气回收系统进行了阐述.针对均压煤气直接放散造成的大气污染问题,对高炉炉顶系统进行升级,采用均压煤气回收技术,对均压后的煤气进行回收再利用,从而避免了煤气和粉尘对环境的污染并为企业创造了一定的经济效益.     

高炉均压煤气回收技术的改进及应用

对高炉均压煤气回收技术的改进及应用进行了总结。简要阐述了高炉均压煤气回收工艺,认为在不影响炉顶装料作业率的前提下,根据实际应用条件可选择"自然回收"或"自然回收+强制回收"工艺。针对第一代均压煤气回收工艺中存在的问题,第二代均压煤气回收技术进行了改进,即取消了第一代回收装置中的缓冲罐;在除尘器内加大缓冲区域,将缓冲罐和除尘器的功能合二为一,并于2015年在1280m~3高炉上成功应用。     

承钢高炉料罐均压放散煤气净化回收的试验研究

针对承钢高炉的料罐在均压过程中存在煤气向大气中排放的现状,研究利用高炉布袋的多余箱体,设计出一套符合承钢高炉料罐均压放散煤气净化回收的装置,充分利用二次能源,并降低排放噪音、粉尘。     

均压煤气回收控制算法升级改造实践

为实现钢铁企业的环保、节能、高质、高效生产,在高炉冶炼中增设了余压回收系统,使高炉环保指标有所提高,但同时也导致了高炉产量的降低。针对此问题,通过优化自动化程序和改变常规阀门动作的先后顺序,对高炉均压煤气回收控制系统进行改造,使增设的环保设备对高炉产量造成的影响大大降低,优化了高炉产量与环保事业的冲突关系,保证了高炉的有效运行时间。     

马钢1号高炉炉顶均压系统的使用与维护

本文对马钢1号高炉均压系统的使用情况和设备维护情况进行了简要分析,指出了存在的问题,并提出了改进的措施。     

高炉均压阀的堆焊强化

高炉炉顶用均压阀的密封面原用索尔玛特和337台金堆焊,在0.07～0.08MPa压力下工作只能用两个月左右,寿命很短,采用碳化钨浸润技术堆焊强化均压阀密合面以后,在炉顶压力提高0.02MPa的情况下工作,其平均寿命是以前的3倍以上。这对提高炉压,减少设备更换时间,提高产量,降低焦比等都具有重大意义。详细地介绍了工艺过程。     

Rats, Man . . .

Comments on the article by Richter entitled "Rats, Man, and the Welfare State" (see record 1960-02810-001). The commenter notes that in his article Richter did not indicate how hereditary and environmental factors were controlled. In comparing the hereditary survival characteristics of wild versus domesticated rats, it would be essential that the environmental influences on the survival characteristics of the wild rats should be ruled out. Another factor to be considered is that the wild state may offer a diet and other environmental influences, which in the life of a single individual would produce organic changes, accounting for some of the differences between wild and domestic rats. It would seem that the most effective way to determine the hereditary differences between wild and domestic rats would be to create a wild group, composed solely of the offspring of wild rats. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Laudatio: Prof. Dr. med. Dr. phil. Dres. h. c. Heinz H?fner

During the course of a year, there are many healthcare workers nationwide who sustain sharps injuries whilst carrying out their duties. Staff who work in the Accident and Emergency (A & E) units are no different from anyone else in this respect. The emotional cost of such an accident cannot be calculated, whereas the financial costs can. This article aims to show how the cost of an injury to a member of staff can be calculated, thus allowing a manager to assess the financial implications of sharps injuries to their department. In the absence of access to an Occupational Health (OH) department, most A & E units have to respond to sharps injuries to healthcare workers in the hospital. This task must be attended to by the medical staff as well as the nursing staff of the A & E unit. Within the following text the appropriate responses and methods to ensure uniformity of response are discussed. The tables and the calculation figures shown are taken directly from the information held in the St James's University Hospital Trust's OH department. All calculations are based on the middle band of the salary scale for each discipline. Accurate costings for each member of staff injured cannot be shown in this article, but the general principle is laid down and can be easily followed for any situation.     

1969 C.P.A. Institute.

Presents the program for the C.P.A. Institute entitled "The Role of Counseling Services on the Contemporary Campus." The Institute was held on June 2-3, 1969. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The blood-brain barrier. I. Histology. Physiology. Embryology. Transport

The concept of blood-brain barrier (bbb) arose in the beginning of the 20th century after report that the dyes injected intravenously did not appear in the brain. The idea and definition of bbb has been changed many times since then. We present current opinion concerning bbb, its histology, embryology, ultrastructure and function on the ground of a review of the recent literature.     

C.A.T. scans

With the rapidly mounting cost of medical care in hospitals, physicians must seek alternative forms of therapy for illnesses that could conceivably be treated by less confining methods. One appraoch to this problem is the Psoriasis Day Care Center, where psoriasis patients with extensive disease are treated during the day and allowed to return home at night. The advantages include reduced cost, accessibility for more patients, and superior therapeutic results. This day care center concept could be equally applicable to other diseases now routinely treated by complete hospitalization.     

O. Chanute, C.E.

Octave Chanute was one of the leading civil engineers in the United States in the period between 1850 and 1890. His work on eastern and western railroads was unsurpassed. He began his bridge building career in 1856 and designed his last major bridge in 1888. Starting in 1890, he began his study in the work that others conducted in the area of manned flight and designed and tested many of his own gliders. He later assisted the Wright Brothers in their experiments in Dayton and at Kitty Hawk.     

Rapport Du Secretaire-Tresorier M. E. P. Sloan.

Presents the June, 1968 report of the Secretary-Treasurer of the Canadian Psychological Association. During the year, the various committees of the Association continued their high level of activity in spite of severely limited financial support for committee meetings. The President and the Secretary-Treasurer represented the Association at a number of special meetings arranged by Canada Council and the Social Science Research Council. Due to shortage of funds and other commitments, the Secretary-Treasurer did not attend the annual meetings of the Canadian Commission for UNESCO or the Canadian Citizenship Council. As mentioned in last year's Report, the Association would be pleased to hear from members who would be prepared to represent the Association at these or other meetings in which they have special interest. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

P. W. Bridgman Advocates Introspection.

Notes that in an article in the Scientific Monthly, P. W. Bridgman, Nobel Prize Winner and arch-physicist, advocates the use of introspection. Difficult problems, not yet solved, have been introduced by the new facts of relativity and the quantum theory. Scientists may have to get outside of the everyday concepts of time and space and learn to observe situations that cannot be repeated. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

B. F. Skinner, organism.

B. F. Skinner illustrated the power of behavior analysis by turning it on his own behavior. This article considers parallels in the life and work of Charles Darwin and places Skinner's views of life and death in the context of his selectionist paradigm for psychology. The term organism plays a special role, and the account shows why Skinner might have regarded it as an appropriate title. (PsycINFO Database Record (c) 2010 APA, all rights reserved)