钢管锯切夹紧力的力学分析

锯切夹紧力大小对钢管锯切有很大的影响。基于力学方法，详细推导了夹紧力计算公式。该计算公式对于现场的生产实践具有重要的指导意义，并且为锯机夹紧装置的设计提供了理论依据。     

热轧大直径棒材锯切夹紧装置的研制

针对石钢第一轧钢厂连轧线棒材锯切过程中夹紧装置运行不稳定导致事故频发现象,研制了一种新型大直径棒材锯切夹紧装置。该装置通过合理布置上夹紧、液压缸并在液压缸内设置线性位移传感器,实现了智能控制与保护控制,稳定了设备运行,保证锯切产品质量。     

一种零件夹紧装置

<正>申请号201821713197.3发明人曾求洪肖朝辉刘杰中本实用新型公开了一种零件夹紧装置,包括:底座;设有底座上并用于夹紧零件的第一夹紧机构和第二夹紧机构;用于驱动第一夹紧机构与第二夹紧机构相向等距移动或者背向等距移动的第一驱动机构;用于限定第一夹紧机构和第二夹紧机构移动轨迹的导向装置;所述第一夹紧机构和第二夹紧机构上均设有用于调节夹紧角度的调节     

型材捆扎自动夹紧成形装置设计

目前国内不论是国产打捆机还是进口打捆机对型材进行捆扎,由于没有合适的自动夹紧成形装置,抽紧钢带时会把型钢捆形带散,导致打捆失败。为了解决此问题,设计并制作了一种型材捆扎自动夹紧成形装置。该装置具有结构简单紧凑,占地面积小,价格低廉,易于操作和维护,能适应各种恶劣的工作环境等特点。具有一定的经济价值和现实意义。     

拉伸矫直机夹紧装置及其液压系统的改进

分析了某型拉伸矫直机夹紧装置的结构及其液压系统存在的不足之处,提出了新的解决方案。改进后的夹紧装置工作安全稳定可靠,提高了维护性和经济性。     

铁和金专利

专利号ＺＬ９７２１１６９７，４申请日期１９９７年３月４日发明人杨志英（山西忻州铁合金公司）发明名称多功能免修电极夹紧及铜瓦保护装置多功能免修电极夹紧及铜瓦保护装置，是一种免于维修的铜瓦保护装置。使用本装置能将铸造铜瓦的使用寿命延长３－４倍。本装置是由水冷腔及水隔离腔组成。在水冷腔上设有三个导向轮孔和节出水管道，三个导向轮孔取代了原夹紧环上的不锈钢密封隔离层。水隔离腔有前后两级底板构成，后级底板设有开口和进水管道。使用本新型装置既可消除原夹紧环的缺陷，又可以起到延长其保护下的铜瓦寿命，且造价明显低…     

锯机夹紧检测装置的改造

介绍了锯机夹紧检测装置存在的问题、分析原因、方案论证、方案实施的过程，达到了增加效益的目的。     

管坯锯切夹紧装置结构分析

分析了各种圆形管坯夹紧机构的结构和原理,对比其优缺点,阐述管坯夹紧装置的设计要点。     

棒材包装工况分析及夹紧成型装置的研制

结合现场生产实际,简要分析了现用棒材打捆包装装置存在的问题,研制成功了新型夹紧成型装置,经生产现场两个机组的使用,效果甚佳.包装质量达到了国家、国际相关标准及规范,对冶金企业型、棒材产品的夹紧打捆、成型包装,具有广泛的使用和推广价值.     

4300mm厚板轧机窜辊装置问题解析

窜辊装置是四辊厚板轧机实现板形控制的重要执行机构。分析了某厂4300mm四辊厚板轧机窜辊装置的结构特点和窜辊缸活塞杆断裂和窜辊缸漏油主要原因。研究结果表明,该窜辊装置的结构特点是采用移动框架式窜辊机构,窜辊机构整体由横移缸推到工作位置,由夹紧块加持工作辊轴承座凸台,并有窜辊缸驱动实现窜辊功能;活塞杆断裂和窜辊缸漏油,主要原因是受到横向力和和倾翻载荷,主要改进措施是将窜辊液压缸活塞杆和移动夹紧块的刚性连接改为活连接,并设置为弧面结构,消除有害载荷对结构的影响。     

Zea systematics: ribosomal ITS evidence

Ribosomal internal transcribed spacer (ITS) sequences were used to evaluate the phylogenetics of Zea and Tripsacum. Maximum likelihood and polymorphism parsimony were used for phylogenetic reconstructions. Zea ITS nucleotide diversity was high compared to other plant species, but approximately equivalent to other maize loci. Coalescence of ITS alleles was rapid relative to other nuclear loci; however, there was still much diversity within populations. Zea and Tripsacum form a clade clearly differentiated from all other Poaceae. Four Zea ITS pseudogenes were identified by phylogenetic position and nucleotide composition. The phylogenetic position of Z. mays ssp. huehuetenangensis was clearly established as basal to the other Z. mays. The ITS phylogeny disfavored a Z. luxurians and Z. diploperennis clade, which conflicted with some previous studies. The introgression of Z. mays alleles into Z. perennis and Z. diploperennis was also established. The ITS data indicated a near contemporary divergence of domesticated maize and its two closest wild relatives.     

Assimilative projection and accuracy of prediction in interpersonal perceptions.

The Allport-Vernon Scale of Values was given to 52 college students. Two or three weeks later, each met with two other Ss and discussed a topic for five minutes with each of them. Before and after each discussion, they filled in the A-V scale as they thought their partners had filled theirs in. Before one of the discussions, S was instructed to focus his attention on himself; before the other discussion, he was asked to focus attention on his partner. "Discussion of the findings suggested that assimilative projection occurs in situations in which incorporation of the other person into already existing constructs about the self is facilitated by focusing attention upon the self. Accurate prediction of the other person takes place when differentation of the self from other is facilitated by focusing attention on the other person." (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Where do you end and I begin? Evidence for anticipatory, motivated self–other integration between relationship partners.

Perceiving similarity between oneself and one’s romantic partner benefits both the individual and the relationship and can arise from multiple pathways that draw either the partner closer to the self or the self closer to the partner. The current research focuses on the latter. The authors investigate novel circumstances under which the self-concepts of individuals in romantic relationships may intertwine. Although self–other integration typically grows from the depth of shared experiences between relationship partners, the current research proposes a secondary pathway through which self–other integration may occur: Specifically, motivation to draw close to a romantic partner may be sufficient to evoke self–other integration even in the absence of shared experience. In 6 studies, the authors explored this anticipatory self–other integration pathway, using both current and potential romantic partners. The results supported the hypotheses by demonstrating that self–other integration can occur in an anticipatory fashion with the appropriate motivation. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

2 years' experience with treatment of uveal melanoma using the Leksell gamma knife

In the last years, the therapy of ocular melanoma with Leksell's gamma-knife was indicated at several clinics in Prague. It referred to bulky tumors and to unfavourably localized tumors so that only enucleation of the eyeball was the only alternative in our conditions. The results of the treatment of 11 patients have been evaluated in this article. Some other patients treated with this method have not been included in this sample for various reasons (short-term follow-up, combination of radiotherapy with gamma-knife with other therapeutic modality etc.) Gradual decrease in tumor size developed in 10 patients during follow-up. The decrease in tumor size has been observed on repeated ultrasound examinations and magnetic resonance imaging. The growth of tumor was reappeared in one patient, which led to the necessity of enucleation of the eyeball. The complications in other patients were numerous but not serious to such extent that would lead to enucleation. Marked deterioration in visual acuity connected with the treatment occurred in 6 patients. The results achieved by this method are comparable with those achieved by other therapeutic modalities and with the results from other clinics employing gamma-knife for the treatment of uveal melanoma. The results lead to the conclusion that this is an effective method of treatment of uveal melanoma and that this method is able to go through further development, especially in combination with other therapeutic modalities.     

What kinds of APA members belong to APA divisions and to state psychological associations?

A "sample of the membership who responded to the 1962 National Register of Scientific and Technical Personnel and which was described earlier [Lockman, 1962] was further analyzed." Division and state members "were older, had higher 1961 gross incomes, and were self-employed to a significantly greater extent than the members of the other 3 subgroups. The division only members indicated research as a primary work activity to a significantly greater extent than the members of the other 3 subgroups. The state only members identified themselves as clinical psychologists to a significantly greater extent than the members of the other 3 subgroups. The subgroups with no division or state association memberships identified themselves as engineering psychologists to a significantly greater extent than the members of the other 3 subgroups." (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The therapeutic community and new roles for clinical psychologists.

"The psychologist in the therapeutic community, as in many other settings, does formal class teaching with psychology interns, nurses, psychiatric technicians and other student and staff personnel in such subject areas as psychopathology and group psychotherapy and other group techniques. He also provides community education through talks to lay groups." The psychologist may have an administrative role; as a team member he may have the role of assistant team leader, or of acting team leader in the psychiatrist's absence. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Characterization of antimicrobial properties of cefpirome

The results of a multicentre investigation of antibiotic susceptibility in 800 clinical isolates were analyzed. The levels of susceptibility to cefpirome and other antibiotics in gram-negative organisms with inducable production of chromosomal beta-lactamases (Enterobacter, Serratia, Citrobacter and others) were compared and the advantages of cefpirome over other cephalosporins were shown: 89 per cent of the susceptible strains against 58 to 78 per cent. With respect to other microorganisms the advantages of cefpirome were less pronounced.     

Effects of level of cooperative choice by the other player on choices in a prisoner's dilemma game. Part II.

This study tests whether very high (or very low) cooperation by the other, sequential change in level of cooperation by the other, and degree of S's "flexible ethicality" will influence level of cooperative choice by 40 male and 40 female human Ss. The design is a mixed analysis of variance type with 3 independent and 2 nonindependent sources of variance. The main findings were that cooperative choice is influenced by a very high level of cooperation by the other, but even more by a sequence of low to high cooperation by the other. Flexible ethicality influences choice but in a complex association with sex and sequence. Essentially, then, communication is possible through reiteration of the Prisoner's Dilemma game. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Home parenteral nutrition in the management of patients with chronic idiopathic intestinal pseudo-obstruction

Home parenteral nutrition is indicated in all those patients who are unable to cover all their needs orally or enterally during prolonged periods of time, and who do not require any other general care other than the parenteral nutrition. Our objective is to prove the use of home parenteral nutrition as a nutritional support in patients with severe forms of chronic idiopathic intestinal pseudo-obstruction. In our unit, three patients with this disease, have received home parenteral nutrition between 1993 and the present date. One patient received it during four months, with the catheter being removed due to a fungemia. At present she is being maintained with oral and enteral nutrition. The other two patients continue in the program: one since October 93 and the other since July 94. The hydroelectric alterations caused during the episodes of sub-occlusion make more frequent changes in the composition of the parenteral nutrition necessary, compared to other types of patients. The low incidence of complications and the degree of acceptance by the patient makes this technique an ideal method for the long term nutritional support.     

Iron deficiency and educational deficiency

Existing data suggest that iron deficiency anemia (IDA) is a risk factor for poor educational performance in schoolchildren. The synergistic effect of IDA in combination with other forms of malnutrition and other risk factors may affect educational performance more strongly. Thus, IDA and its effect on educational performance should be studied in the context of other risk factors.