TURBULENCE MEASUREMENT INSTRUMENT WITH A SILICON PIEZORE-SISTANCE BEAM

A newly developed turbulence measurement instrument is introduced in the paper.The transducer of the device is based on the principle of the effect of silicon piezoresistance that isintegrated in a Wheatstone bridge on a pure silicon beam. At one end of the beam, a small lightball is installed as the target forced by the water flow. The other parts are prevented from thewater flow with a sophisticated stainless steel tube. The instrument can be used to measure turbu-lent velocities either in clear Water or in flows bearing hyperconcentration of sediment. It can al-so be used to measure velocities in both glass flume and model experiments as well as in pipe ex-periment by being mounted in a special way.     

某游客中心单层网格折板屋面的结构设计

某游客中心项目为满足建筑造型和空间需要,采用了单层网格折板屋面结构,屋面网格钢梁间均正向正交、刚接连接,网格梁的空间高度相对于普通主次梁结构有显著优势;同时结构布置上充分利用建筑山墙、隔墙、幕墙等空间设置为钢排架-支撑抗侧体系,抵御水平作用.折板屋面平面上成曲折Z型,立面上柱顶标高高低变化,为确保结构设计的安全可靠和尽量真实模拟空间受力,采用了Midas-Gen等程序对折板屋面进行了三维建模和分析计算,结果表明该结构体系安全可行,可以满足现行规范的各项指标要求,并且建筑空间效果显著,为工程中的结构形式与建筑空间相结合提供了新的思路.     

Modification of obsessional ruminations: A comparative study.

Conducted an analog study to examine the relative efficacy of 3 treatment strategies in the modification of obsessional thoughts. Of 172 volunteers, 51 Ss were selected by criterion scores on the Leyton Obsessional Inventory, IPAT Anxiety Scale Questionnaire, target person ratings, and willingness to participate. Ss were randomly assigned to 1 of 5 treatment groups: (a) systematic desensitization (SD) and covert sensitization (CS); (b) SD and CS control; (c) SD control and CS; (d) SD control and CS control; and (e) waiting list contol. The effects of treatment were evaluated immediately and 5 wks following treatment on 13 dependent measures (e.g., frequency of ruminations, obsessional producing, and neutral stopping). Depending on the criterion of therapeutic success the combined use of CS and SD was most effective in reducing both anxiety and obsessive ruminations. (French summary) (25 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

超限底层框架砖房抗震体系的设计与应用探讨

传统的抗震设防已不能满足超限底层框架砖房的需要 ,引入砖混剪力墙的概念 ,提出在上部砖房的两端及中部设置砖混剪力墙 ,底层采用钢筋混凝土框架 -剪力墙结构 ,上下剪力墙有机结合 ,共同作用 ,并结合其它加强措施 ,建立起整体性强的空间抗震体系。     

变阻尼粘滞阻尼器的减震原理和力学模型分析

本文研发了新型的变阻尼粘滞阻尼器,在不同的工作阶段可以设定不同的阻尼参数值。本文介绍了该阻尼器的主要原理和设计构造,提出了两段和多段式的可控阻尼方式。推导了细长孔时的幂律流体变阻尼粘滞阻尼器阻尼力的理论计算公式,为变阻尼粘滞阻尼器的研发和应用提供了理论基础。     

运用GIS技术提高我国烟叶质量数据科学价值初探

文中指出我国目前的烟叶质量数据存在几个不足之处:缺乏数字化的地理属性、缺乏高效管理与分析工具、对历史烟叶质量数据利用不够等。提出了运用现代信息技术去弥补这些不足的基本思路,并且采用2000年优质烟叶开发示范区的烟叶化学成分检测数据作了试验,研究结果表明,从理论上讲,运用现代信息技术去弥补目前烟叶质量数据的不足是完全可行的。      

Perceived attitudes of schizophrenic inpatients in relation to rehospitalization.

Forty-nine schizophrenic inpatients who were ready for discharge completed the Influential Relationships Questionnaire. This instrument measures respondents' perceptions of three characteristic attitudes (care, overprotection, and criticism) demonstrated by two influential people in the patients' lives. The subjects were followed up for a 9-month period. Readmitted patients (N?=?21) rated the second-most-influential person higher on the Overprotection and Criticism scales and lower on the Care scale than did nonreadmitted patients (N?=?28). The implications of these findings in relation to rehospitalization are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

低强度等级素混凝土桩(LC桩)地基处理法及其在工程中的应用

低强度等级混凝土桩(LC桩)由于其工作原理及经济等因素,应用前景十分广泛。从工程实例出发,结合各种基础方案的特点进行了比较,探讨LC桩复合地基在处理软弱泥炭质土层等特殊地基方面的应用;并简单介绍其施工工艺。     

深基坑支护结构的动态可靠性研究

深基坑支护结构的设计与计算一般采用确定量的计算与分析。但在材料参数、荷载及计算模型等方面存在极大的不确定性。同时,对地下结构的设计需要大量的假设,并不完全符合实际情况。所以,必须用科学的可靠性体系指导设计和施工,才能保证支护设计合理、施工安全并减少投资浪费。     

蒸压高强粉煤灰砖生产技术

蒸压高强粉煤灰砖强度高 ,可达到ＭＵ２０ ,生产工艺技术水平较高 ,能耗低 ,产品广泛用于建筑基础和内外墙体。以年产５０００万块蒸压高强粉煤灰砖为例 ,每年可消耗粉煤灰７万ｔ。这将为粉煤灰综合治理提供一条切实可行之路。武汉地区一些生产厂家生产的这种高强粉煤灰砖（ＭＵ２０以上）现供不应求 ,售价高达０．３８～０．４０元／块标砖。１原材料要求及配合比（１）粉煤灰应符合ＪＣ４０９ -９１《硅酸盐建筑制品用粉煤灰》的要求 ,放射性应符合ＧＢ６７６３的规定。（２）砂可采用各种工业尾矿砂和天然砂 ,但必须符合《硅酸盐砖及蒸压…