A decade of hybrid reporting and accountabilities of the Hanyeping Company (1909–1919)

Using a model of hybrid reporting and accountabilities, this article considers the reporting and accountability of the Hanyeping Company in the Beiyang era. The results of the study suggest that the Hanyeping Company attempted to provide comprehensive accounts of its activities to satisfy the needs of a plethora of domestic and foreign stakeholders through a combination of detailed Western and Chinese accounts. In keeping with Western and indigenous Chinese expectations of accounting, the Hanyeping Company prepared accounts that demonstrated characteristics of Auyeung’s demonstrated features of nineteenth-century Westernised reporting and the traditional reporting model. This suggests that the period between 1909 and 1919 experienced a decade of reporting hybridisation in direct contrast to the so-called period of accounting stagnation of the late Qing Dynasty.     

混合动力系统在船舶上的应用研究

文中介绍了四种混合动力技术,并针对船舶动力系统的特点,分别研究了这四种混合动力技术在船舶上的应用方式。     

多层砌体混合结构房屋常见裂缝的分析

在多层砌体混合结构房屋中,砌体出现裂缝是常见的质量通病,引起裂缝的原因有地基不均匀沉降、温度应力、地震力、膨胀力、冻胀力、设计和构造处理不当和施工质量等等,本文就这些问题进行分析并提出解决方案的设计。     

Participation index: a measure to identify rural transport disadvantage?

This paper develops a composite participation index (PI) to identify patterns of transport disadvantage in space and time. It is operationalised using 157 weekly activity-travel diaries data collected from three case study areas in rural Northern Ireland. A review of activity space and travel behaviour research found that six dimensional indicators of activity spaces were typically used including the number of unique locations visited, distance travelled, area of activity spaces, frequency of activity participation, types of activity participated in, and duration of participation in order to identify transport disadvantage. A combined measure using six individual indices were developed based on the six dimensional indicators of activity spaces, by taking into account the relativity of the measures for weekdays, weekends, and for a week. Factor analyses were conducted to derive weights of these indices to form the PI measure. Multivariate analysis using general linear models of the different indicators/indices identified new patterns of transport disadvantage. The research found that: indicator based measures and index based measures are complement each other; interactions between different factors generated new patterns of transport disadvantage; and that these patterns vary in space and time. The analysis also indicates that the transport needs of different disadvantaged groups are varied.     

基于时域分割的DS/FH信号参数估计

针对时频分析方法在直扩/跳频(DS/FH)混 合扩频信号参数估计中存在时频分辨率受限、交叉项干扰、实时性差等缺点,通过分 析DS/FH信号的时频特性,提出了一种新的DS/FH信号参数估计方法。该方法从待测信号的时 域分析出发,利用不同跳频点对应的周期数不相等的性质,完成了对DS/FH信号的时域分割 ,最后结合DS/FH信号性质完成了对待测信号跳频周期、驻留时间、跳频频率的估计。仿真 结果表明,该方法针对DS/FH信号的参数估计精度高,运算速度较快,且没有干扰频率。     

基于两阶段法的多车型卷烟配送路径优化研究

在烟草商业企业中,物流是其重要的环节,是连接客户与烟草企业间的纽带,其卷烟配送线路设计的合理与否直接影响到卷烟的配送效率和配送成本,就如何合理的规划线路成为卷烟配送的关键问题。文章以Q烟草公司为例,运用先分组后路线的两阶段法对问题进行求解,先利用K-means聚类算法对区域进行划分,再考虑工作量均衡的条件下引入遗传算法对区域进一步调整,最后利用混合遗传算法对各配送区域进行线路优化,通过实例从线路数、车辆数、空载率、配送里程及总成本等指标上可以看出两阶段法的配送效果更优。     

Digital Platforms and the Nature of the Firm

Abstract:

Digital platforms turn traditional approaches of the firm, which relied on the wage relation to explain the major difference between firm and market, upside down and underline the advantages of coordination through organization over coordination through market. This study aims to propose a definition of the firm able to integrate, besides the integrated firm, also hybrid forms such as networks of subcontractor/subcontracting firms as well as atypical forms such as digital platforms. By reactivating the firm-boundary problem, this article suggests putting valorization by labor at the heart of the firm’s decisions concerning integration. It suggests therefore a general definition of the firm as a techno-institutional center of capital valorization, provided that firms make profits by means of the appropriation of labor incorporated into their (productive, structural, intellectual) capital through institutional arrangements. By stressing the relation of production between the owners of the means of production and the direct producers, the approach of the firm supported here should allow to cover the different existing models of the firm, from the classical firm to hybrid models, around which the boundary debate has revolved, to digital platforms.     

杂交水稻科研质量管理体系及组织机构设计研究

杂交水稻科学研究属于农业基础研究工作,质量管理体系建设是推动科技创新的可靠保障。依据杂交水稻科研的特点,在全面质量管理理论指导下,建立了杂交水稻科研质量管理体系框架,设计了杂交水稻科研质量管理的运行机制,探讨和分析了杂交水稻科研质量管理机构的建设。     

Attitudes,norms and difficulties underlying road sharing intentions as drivers and cyclists: Evidence from the Czech Republic

Cycling-inclusive urban planning is attracting attention worldwide because of the environmental, health, economic, and transport benefits inherent to cycling from the individual and the societal perspectives. The Czech Republic is one of the emerging cycling countries that are trying to promote and support cycling, but cycling mode shares are low because of the poor quality of the scarce infrastructure and the psychological barrier of the perceived lack of safety when cycling in mixed traffic. This study takes a multimodal approach based on the Theory of Planned Behaviour and focuses on the factors underlying the willingness to share the road from the perspective of cyclists and drivers: positive attitudes toward cycling, positive attitudes toward cyclists’ behavior, social norms toward cycling and anxiety to share the road. A web-based questionnaire was tailor-designed and administered in the Czech Republic via social networks, web forums, and the Civinet network, and a hybrid bivariate-ordered model tested the behavioral framework. Results show that the willingness to share the road as a cyclist or as a driver relates positively to positive attitudes towards cycling and cyclists’ behavior, and negatively to the anxiety of sharing the road. Moreover, mediator effects are observed and a clear relation emerges between the experience on the road as both a cyclist and a driver on the willingness to share the road as a cyclist. Lastly, results show that the factors underlying road sharing intentions are related significantly to gender, travel habits, and perceived personal and infrastructure-related barriers to cycling.     

基于双目立体视觉技术的运动物体空间位置信息测量方法研究

为了使Delta机器人能够快速、准确地拾取随机出现在输送带不同位置上的不同高度的目标物体,设计了一套可获取运动目标物体空间位置信息的测量系统。利用LabVIEW与Matlab混合编程技术,同时结合双目立体视觉技术和图像处理技术以及光电传感设备,实现了对运动物体空间位置信息的准确获取。对该系统的测试方法和测试数据进行了实际检测和分析,检测数据表明,经过图像径向畸变矫正后,由该系统及测试方法获取的空间位置信息数据具有较小的相对误差。