总磷在线分析仪的准确性及影响因素分析——以泸州市水质自动监测站为例

为分析总磷在线分析仪的准确性及影响因素,回顾性分析2023年泸州市省级水质自动监测站中3款不同型号的总磷在线分析仪全年的质控监测数据。结果表明:采用钼酸铵分光光度法的总磷在线分析仪具有较高的准确性、稳定性和线性,但受仪器试剂浓度和仪器校准曲线的影响,会阶段性出现测量偏差。实际水样的加标回收和实验室比对结果表明,浊度会影响分析结果的准确性,其中具有浊度补偿功能的仪器受浊度影响较小。     

消费者对偏远地区特色农产品的购买行为及其影响因素研究——基于2 027个消费者样本数据的考察

目的 准确把握偏远地区特色农产品市场的需求特点和消费规律,对于偏远农村地区持续巩固脱贫攻坚成果、进一步实现乡村振兴意义深远。方法 文章基于2 027位消费者问卷调查数据,建立二元 Logistic模型分析偏远地区特色农产品消费的影响因素。结果 （1）家庭成员结构、职业、收入水平对偏远地区特色农产品购买行为具有显著影响;（2）购买动机、购买渠道、获取农产品供给信息的途径对偏远地区特色农产品购买行为具有显著影响;（3）农贸市场变量与溢价支付意愿呈正向显著关系,线下仍然是消费者选购农产品的主要渠道;（4）种植与营销供给质量对消费者农产品购买行为具有显著影响。结论 该文提出了偏远地区加大绿色和有机特色农产品种植,优化传统农产品市场批发流通网络,不断提升偏远地区特色农产品知名度和美誉度等政策建议。     

川西南公路顺层边坡桩锚组合结构加固分析——以乐西高速ZK9+352 ~ ZK9+526边坡为例

四川盆地周边地形地质条件复杂,公路建设中顺层边坡的工程病害频现。通过工程地质分析和数值计算,基于滑面损伤本构模型,研究顺层边坡支护前后滑面应力、位移和边坡稳定性系数等特征量的变化规律,验证桩锚组合结构加固顺层边坡的适用性;通过施工全周期现场监测,获取边坡深部位移、抗滑桩桩身弯矩和锚索应力的时效特征。结果表明：开挖扰动下顺层边坡具渐进性失稳破坏特征;自坡脚沿滑面向后缘,位移呈指数型平滑递减,剪应力先增大后降低,滑面损伤变量自剪应力峰值位置开始同频衰减;采用桩锚组合结构加固顺层边坡后,滑面位移最大值降低88.62%,最大损伤变量降低84.75%,稳定系数提高25.20%;坡体深部位移、抗滑桩桩身弯矩、锚索应力等监测验证了桩锚组合结构加固的有效作用。     

Connect技术在网络远程维护中的应用

Ｃｏｎｎｅｃｔ是基于Ｎｅｔｗａｒｅ服务器的远程连接技术。本文介绍了远程连接的基本方法,Ｃｏｎｎｅｃｔ的工作方式,主要功能和客户端软件,阐述了Ｃｏｎｎｅｃｔ的安装和配置,Ｃｏｎｎｅｃｔ的特色和应用价值。     

独立董事"独立性"研究

独立性是独立董事制度的核心和灵魂。本文认为,独立董事制度的独立性包括独立董事个体的独立性和独立董事整体的独立性。独立董事的独立性是相对的,也是动态的,而且与独立董事的选拔机制、激励和约束机制有关,恰当的激励和约束机制是确保独立董事独立性的重要因素,中等程度的激励和中等程度的约束是最佳的“度”。独立董事在董事会中占多数地位是独立董事整体独立性的基本保证,独立董事工作条件的配套也是提高独立董事工作效率(这也是“独立性”的最终目的)的重要条件。     

Visitor monitoring along roads and hiking trails: How to determine usage levels in tourist sites

Best-practice visitor-monitoring techniques are crucial for the assessment of tourism-related impacts in natural areas of high conservation value. In such studies, ecosystem variables are typically compared between high and low usage tourist sites. We assessed visitor use at 80 sites in the Flinders Ranges gorges and compared 11 visitor variables for their potential to differentiate usage levels between sites either exposed to vehicle or hiker traffic. We show that the efficiency with which a visitor variable represents usage levels depends on the access mode to gorges, with the number of passing visitors best suited for monitoring of usage levels in gorges permitting hiker access only, and variables describing camping usage best suited for gorges permitting vehicle access.Further, the distinct advantages and disadvantages of four visitor-monitoring techniques were examined; namely, the direct monitoring of visitor use by staff observers, the assessment of proxy variables from which past and present use can be inferred, GPS tracking of visitors and the survey of visitors by an interview-based questionnaire. We recommend GPS tracking because of the reliability and detail of data and the many sites per day that can be sampled. Due to a strong, positive correlation, the campground size and the number of fireplaces may be recorded in proxy of the camper numbers to increase time-efficiency and robustness of measures against short-term fluctuations in usage. Survey data gathered in relation to specific site-use were tempered by the memory of visitors and their ability to describe or reference the visited sites on a map. Visitor surveys were therefore useful only as a supplementary method for differentiating usage levels on a coarser spatial scale.     

A decade of injury monitoring in the New Zealand adventure tourism sector: A summary risk analysis

Adventure tourism safety has received relatively little research attention despite the level of risk inherent in many adventure activities. In New Zealand, an absence of surveillance or monitoring of injury in the adventure sector has had important implications for the management of tourist safety. A series of studies conducted by the authors between 1996 and 2006 have sought to address this knowledge gap, with the aim of identifying the extent and nature of adventure tourism injury using a range of primary and secondary data sources. The paper reports on findings from a summary risk analysis of these studies, including evidence for the scale of the adventure tourism injury problem, and ranking of degree of risk for a range of factors for safety in adventure tourism participation. A conceptual model to assist risk management in the adventure sector is presented, and implications of findings for management and the adventure sector are discussed.     

基于公司治理监督职能的财务舞弊防范——一个分析框架及其应用

世界范围内上市公司财务舞弊案的爆发将公司治理问题推上了风口浪尖。文章之目的在于将公司治理引入财务舞弊研究范畴,提供一个基于公司治理监督职能角度的舞弊治理分析框架。文章首先从公司治理模式、所有权状态依存与公司治理功能三方面剖析公司治理的监督职能,在此基础上试图勾勒出基于公司治理之监督职能的财务舞弊治理框架,并以财务报告生产与呈报过程为例具体说明公司治理监督职能的运用。结合目前的研究文献简要讨论基于公司治理监督职能的舞弊治理未来研究思路与方向。     

Intensive Board Monitoring,Investor Protection and Segment Disclosure Quality: Evidence from EU

Abstract

This study examined the association between intensive board monitoring (IBM) and segment disclosure quality (SDQ). It also investigated whether this association can be moderated by firm's home country investor protection (IP) level. Based on a panel of 271 non-financial European Union (EU) listed corporations covering the 2007–2012 period, this study estimated two multiple regression models including industry and year fixed effects. We found evidence that the segment disclosure quality is higher when a majority of outside directors serve on monitoring committees. We, also, found that the positive association between IBM and SDQ is more pronounced for firms in a weak IP environment and less pronounced for firms in a strong IP environment. Thus, we provided evidence in favor of a substitutive relationship between IBM and IP level with respect to their association with SDQ. Our findings are evidenced by several robustness tests.     

Within-syndicate conflicts,loan covenants,and syndicate formation

We study how conflicts within a lending syndicate affect loan contract and syndicate formation. We argue that loan provisions serve an important dual function: In addition to moderating borrower–lender conflicts, they reduce within-syndicate conflicts. We show that greater potential for within-syndicate conflicts is associated with more and stricter covenants. Loans are less restrictive when the interests of participants and the lead arrangers are better aligned, for example, when participant–banks have stronger relationships with the lead arranger or hold borrower's equity (indirectly). Overall, our results show that covenant choice, syndicate formation, and lead arranger's loan allocation all play an important role in reducing within-syndicate conflicts.