成都话主观量范畴的特殊表达形式

成都话有主观量范畴的特殊表达形式,主要用助词"打"和"把"表示."打"用来表示主观量大,"把"用来表示主观量小.主观量具体表达模式的构成同量词也有一定关系.同时,不同的主观量表达模式同副词组合时有不同的选择性.     

重庆城乡协调发展问题探析

解决“三农”问题必须跳出过去基于农村本身就“三农”论“三农”的研究思路,因为农村区域自身没有条件和能力来解决“三农”问题,从城乡互动视角来研究“三农”问题尤为重要,城乡互动是解决“三农”问题的有效途径,该文重点分析了重庆城乡失调的表征和弊端,最后提出了促进城乡良性互动的措施。     

解决"三农"问题必须建立农业经济组织

随着 "三农"问题研究的深入,越来越多的人认识到,解决"三农"问题要求建立农业经济组织.但当前大多数的探讨定位于中国入世的宏观环境和市场学的角度,只是给出了建立农业经济组织的重要性,但没有提出解决问题的理由及措施.这里从微观体制和农民生产的角度进行分析,力求给出建立农业经济组织的根本原因,并在此基础上,提出建立农业经济组织的现实途径.     

Assessment of airport performance using the SBM-NDEA model

This paper presents a slacks-based measure network data envelopment analysis (SBM-NDEA) model of performance measurement under series productions with quasi-fixed inputs of runway, terminal and apron areas as well as free linking capacity provisions. Airport operations efficiency is decomposed into production and service efficiency. Service efficiency can then be further decomposed into airside and landside aspects. Our empirical findings suggest that efficiency in airport production may not guarantee efficiency in the service process of domestic airports in Taiwan, and vice versa. This study also estimates the input excess and output shortfalls with respect to production and service processes, respectively.     

Coordinated scheduling of production and delivery stages with stage-dependent inventory holding costs

This paper considers a problem of integrated decision-making for job scheduling and delivery batching wherein different inventory holding costs between production and delivery stages are allowed. In the problem, jobs are processed on a facility at a production stage and then delivered at the subsequent delivery stage by a capacitated vehicle. The objective is to find the coordinated schedule of production and delivery that minimizes the total cost of the associated WIP inventory, finished product inventory and delivery, where both the inventory costs are characterized in terms of the weighted flow-time and the delivery cost is proportional to the required number of delivery batches. It is proved that the problem is NP-hard in the strong sense. Thereupon, three heuristic algorithms are derived. Some restricted cases are also characterized as being solvable in polynomial time. Numerical experiments are conducted to evaluate the performance of the derived heuristic algorithms.     

Measure of location-based estimators in simple linear regression

In this note we consider certain measure of location-based estimators (MLBEs) for the slope parameter in a linear regression model with a single stochastic regressor. The median-unbiased MLBEs are interesting as they can be robust to heavy-tailed samples and, hence, preferable to the ordinary least squares estimator (LSE). Two different cases are considered as we investigate the statistical properties of the MLBEs. In the first case, the regressor and error is assumed to follow a symmetric stable distribution. In the second, other types of regressions, with potentially contaminated errors, are considered. For both cases the consistency and exact finite-sample distributions of the MLBEs are established. Some results for the corresponding limiting distributions are also provided. In addition, we illustrate how our results can be extended to include certain heteroskedastic and multiple regressions. Finite-sample properties of the MLBEs in comparison to the LSE are investigated in a simulation study.     

论新时期博士后制度改革

目前,在高校的博士后工作中存在着管理体制僵化、投资渠道不畅、发展动力不足和博士后创新成果少等主要问题.就重庆市和重庆大学博士后工作而言,应加强宏观调控,改进运行机制,推进多元化投入机制,促进产学研结合机制及优化博士后工作环境等.     

气候变化全球治理的新发展——国际航空业碳抵消与削减机制

2016年10月召开的国际民航组织（ICAO）第39届全体成员国大会决定建立一个“国际航空业碳抵消与削减机制（CORSIA）”,以实现自2020年起的“碳中和增长”目标。一方面,碳抵消与削减机制是ICAO长期持续致力于航空业温室气体减排所取得的成果,同时也与国际航空减排的紧迫性与航空企业的认可相关联;另一方面,碳抵消与削减机制也是欧盟在国际航空减排谈判中进行积极推动与单边威胁的结果。CORSIA的特点主要表现为适用范围有限、分阶段实施、“前松后紧”的抵消义务等。当前,CORSIA的发展前景尚面临着诸多挑战,如可用于抵消的合格排放单位的资格要求将成为实施CORSIA的主要障碍,CORSIA自身缺乏遵约与处罚机制。为促进CORSIA的顺利实施,同时尽可能减少其对航空市场的扭曲,ICAO应进一步完善CORSIA的执行方案,或由成员国调整其自主性航空减排措施。CORSIA的有效实施也有赖于《芝加哥公约》下的成员国“自助机制”。     

黑龙江垦区耕地利用生态效率及其内部协调性

基于耕地利用生态效率的内涵界定,运用DEA效率混合测度模型和协调发展度模型,分析2001—2016黑龙江垦区耕地利用生态效率及其非效率来源,探究耕地利用生态效率的内部协调性。研究表明：2001—2016年研究区耕地利用生态效率呈波动上升趋势,变化幅度不大,各管理局耕地利用生态效率差异明显;耕地利用效率损失的主要原因为投入非效率、社会产出非效率和环境产出非效率,且投入非效率普遍高于社会产出非效率和环境产出非效率,耕地投入冗余对耕地利用效率的负向影响最大;耕地利用经济和社会效率相对于环境效率滞后,是影响耕地利用生态效率内部协调性的主要原因。认为耕地利用生态效率是耕地利用经济、社会和环境效率的综合体现,并从内生性角度分析耕地利用非效率来源及其变化趋势,为提高耕地利用效率提供有效指导,即通过优化研究区耕地投入结构,减少耕地投入冗余,提升其耕地利用经济和社会效率,以实现耕地利用经济、社会和环境效率的协调发展。     

Fuzzy测度的和与乘积的伪零可加与伪自连续性

本文讨论了σ－代数上的Ｆｕｚｚｙ测度和和与乘积的伪零可知，伪自连续性。