响洪甸电站引水隧洞进口水下岩塞爆破施工

响洪甸抽水蓄能电站水下岩塞爆破施工要求高,技术新,难度大.由于施工准备充分,并进行了一系列材料及施工试验,工程进展顺利,排孔造孔、导洞药室开挖、药管与起爆体加工、装药与堵塞、网络施工、充水补气等工程施工质量符合设计要求,岩塞爆破准时成功起爆.     

CTS-26型超声探伤仪典型故障的分析与排除

在简要介绍CTS-26型超声探伤仪工作原理及组成的基础上。对其几种典型故障作了具体的分析和处理。     

Task analysis training of case managers to assist seriously mentally ill patients find roommates and housing

This study examined the efficacy of task analysis training for case managers helping seriously mentally ill patients find roommates and housing. Behavioral objectives and task analysis were used to develop the task-oriented behavioral training program. Case managers were trained to use a checklist for every session with patients, which included the goal of the session, tasks required to accomplish that goal and lists of all the sub-tasks. The results of this study suggest that this methodology: (1) reduced the time required for patients to find roommates and housing; (2) increased the percentage of patients finding housing; and (3) decreased hospitalization rates occurring during the process of looking for roommates and housing.     

中型孔径小梯段露天石方深孔水压爆破

介绍了一种石方开挖新技术－－露天石方深孔水压爆破技术。用试验的方法，通过和常规石方爆破进行类比，从而研究了此项新技术在中型孔径小梯段应用条件下的各种爆破参数，并进行了定性和定量分析，得到了一些初步的结论。     

ID-based threshold decryption secure against adaptive chosen-ciphertext attack

This paper proposes an identity-based threshold decryption scheme IB-ThDec and reduces its security to the Bilinear Diffie-Hellman problem. Compared with previous work, this conceals two pairing computations in the ciphertext validity verification procedure. The formal proof of security of this scheme is provided in the random oracle model. Additionally, we show that IB-ThDec can be applied to the threshold key escrow and the mediated cryptosystems.     

噻二唑二聚物/丁氧基三乙二醇复合物的合成

合成了噻二唑二聚物/丁氧基三乙二醇复合物。反应物的摩尔比及反应温度影响产物作为添加剂加入到润滑脂中的抗烧结性能。在最佳反应条件下,即n(噻二唑二聚物)∶n(丁氧基三乙二醇)=0.5∶1.0,反应温度125℃时,产率为85%。通过分子模拟、红外光谱、13C核磁共振及N、S元素的含量测定,探讨了产物的结构及反应机理。结果表明,噻二唑二聚物与丁氧基三乙二醇的摩尔比越大,在金属表面形成配位的噻二唑环的个数就越多,就会表现出更强的吸附特性,从而表现出更高的抗烧结性能。     

多路温度转换器在长庆石化公司的应用

介绍了MTL800系列多路温度转换器在长庆石化公司的具体应用,并对MTL800系列温度转换器的特点做了描述。     

圆形截面钢筋混凝土构件裂缝宽度试验研究

对大偏心受压、受弯、大偏心受拉、小偏心受拉和轴心受拉圆形截面钢筋混凝土试件进行了试验，测定了不同荷载下的钢筋应变、裂缝宽度、裂缝宽度-荷载曲线和钢筋应力-荷载曲线，研究了各种试件的裂缝发展规律．结果表明，各种试件的裂缝发展规律基本一致，即荷载很小时不出现裂缝；从混凝土出现第一条裂缝到钢筋屈服，裂缝宽度随荷载基本呈线性增长；钢筋屈服后，裂缝随荷载增大而迅速增长．最后对裂缝宽度进行了统计分析，给出裂缝宽度的概率分布．     

STUDY ON THE COAL DESULFURIZATION BY DILUTE ALKALI / ACID TREATMENT AND ITS MECHANISM

Sulfur in coal causes problems in coal processing and utilization, therefore the chemical beneficiation of coal has gained widespread attention. Using three coal samples with high sulfur content the effect of desulfurization has been studied. For Nantong coal containing 4.25% total sulfur under the condition sulfur reduction increased from 38.8% upto 62.4% the released sulfur was generally sulfate and pyrite, but the organic sulfur almost remained constant. When alkali treatment was performed at 370^°C, organic sulfur removal of Donglin and Yanzhou coal was to 50.6% and 57.3% respectively.