港口吞吐量抽样调查方案设计

讨论了抽样调查在港口吞吐量调查中的应用前景，分析了港口吞吐量抽样调查方案设计的各个环节，包括：方案设计的原则、技术方法、抽样公式、调查时间、分层确定、季节变动处理和非抽样误差控制等。     

指导发现式教学模式在健美操课中的运用

论述了指导发现式教学模式在健美操课中的运用程序与实现环境等原理,并在其对健美操中的运用进行了分析.     

《情报学报》与我国情报学发展(Ⅱ)--《情报学报》创刊20年来引用文献的计量分析

《情报学报》是公认的我国情报学权威期刊 ,不仅发表了大量情报学论文 ,同时其引用文献更是覆盖了中外情报学及其相关领域的重要文献。其引用文献的数量、语种、类型、年代分布、学科分布、来源期刊、自引等数据不仅可以客观公正地评价《学报》的学科地位 ,也可以更加全面地把握我国情报学发展的动态过程、特点和规律 ,以及与相关学科的关系     

Demand for and productivity analysis of Turkish public theater

We estimate a demand function for live theater provided by the General Directorate of State Theaters in Turkey. We show that demand is more elastic in less developed cities, that attendance is not significantly affected by various qualitative variables, and that the government's practice of offering free passes to government officials is an ineffective way of increasing paid attendance. Comedies and musicals both show significantly higher attendance. Having a Turkish author does not significantly affect attendance. Having a known author significantly increases attendance for more developed cities but not for less developed cities. Being the opening season significantly reduces attendance in less developed cities but has no effect in more developed cities. We also present evidence of inefficiency in state theaters in Turkey through a performance of plays equation in which we evaluate the determinants of the number of performances per play.     

桥式起重机结构件测试中的若干问题

为了使桥式起重机的寿命管理措施更切合实际，必须提高桥机的强度和刚度测试的精度。文中提出了现场测试中可以采用的一些提高精度的措施和方法。     

冷藏集装箱制冷装置可靠性统计分析

根据收集到的某航运公司４３１８只自备和长期租用的冷藏集装箱在４年多时间内的现场故障数据，采用截尾寿命数据分析的技术，求解了当部分样本失效时，母体的参数估计值和冷藏集装箱制冷装置的主要部件如压缩机、膨胀阀以及蒸发器的可靠性概率密度函数等可靠性特征值。文章还讨论和考察了Ｄａｉｋｉｎ，ＰａｕｌＫｌｉｎｇｅ，Ｍｉｔｓｕｂｉｓｈｉ和Ｃａｒｒｉｅｒ４种主要集装箱制冷装置的可靠性特性。     

基于粒子群优化算法的边坡安全系数估计

粒子群优化算法具有全局性能好、搜索效率高、容易实现等优点.文章在极大似然估计模型的基础上,采用粒子群优化算法,提出一种基于实例的边坡安全系数估计模型.工程实例研究表明,该模型精度明显优于传统极大似然估计模型和遗传算法优化模型,说明本文方法是科学可行性的.     

A Review on the Article: Role of Common Biochemical Markers for the Assessment of Fracture Union

Criterion for patient selection and demographic comparison between the two groups, the numbers in individual groups (normal union or defective union) how the observers were blinded for the samples and control group measurements in the graphs were not mentioned. No data on actual measurement levels is given. No where it is mentioned like it is an average of all normal union or defective union in tables or diagrams. The treatment methodology maybe still focused including either conservative or surgical treatment since a displaced fracture cannot be compared with an osteotomy. The cases shall be followed up for a longer period. Some suggestions on how to blind the observers is given. In the one year period there was neither mention of the failure of treatment or complications of any of neither these 36 cases nor any drop out for follow-ups. There was also no mention of any case which initially put on conservation was changed to surgical management. The authors could have one group of patients taking this food stuff and another group who refused this food stuff. The statistical test used to compare the levels of factor is not mentioned. Mere statement that ‘p’ values were significant will not benefit the reader. Failure to produce X-rays even for a single case weakens the study. X-rays are needed to confirm the diagnosis of a fracture and confirm the position of implants and fracture fragments. The remaining period after confirming the fracture/implant position the case shall be followed only with marker estimation. Once the desired levels of increase or tapering of marker level achieved then X-rays can be taken to correlate with clinical findings and radiology. Union as one group and the second group shall be called as non-union or delayed union. The second group (the poor callus group) is mentioned as malunion possibly by over-sight. Probably they were meaning the non union or delayed union group or defective union as malunion. This should be preferably be written non union or delayed union. Malunion means the fracture actually unites and union process is completed. In a group of fractures (hypertrophic non unions) the callus formation is excessive, still the fracture is ununited. Thus the enzyme or markers alone cannot disclose the details of the completion of union they can herald bone formation.     

非齐次等式约束线性回归模型回归系数的综合条件岭估计

提出非齐次等式约束线性回归模型回归系数的一个新的有偏估计,即综合条件岭估计,讨论了综合条件岭估计的性质,在一定的条件下,综合条件岭估计的样本总方差、均方误差、均方误差矩阵均分别小于约束最小二乘估计的相应误差.在综合条件岭估计下,条件岭估计和条件根方估计为其特例,从而统一了条件岭估计和条件根方估计的理论.     

科学合作最佳规模现象的发现

 科学论文生产与科学合作规模之间的关系,本质上是科学生产力与科研生产关系的互动作用。本文作者回顾了在指导博士生在这一领域选题进行学位论文研究中,意外发现了科学合作最佳规模现象,这一现象当时博士生的研究已经显示出来却尚未完全意识到。之后,WISE实验室部分成员采用威布尔分布和核心密度估计两种概率密度函数,对WOS数据库中的核物理学、应用物理学、应用化学、微生物学和纳米科技等学科若干年度的论文数据进行分析,得到合作规模(人数)与论文数量关系的密度分布曲线,证实了科学合作最佳规模现象的存在。最后,提出了全面探索科学合作最佳规模现象与定律的设想。