Existence,relatedness and growth needs as mediators between mode choice and travel satisfaction: evidence from Denmark

Transportation - Understanding the link between mode choice and travel satisfaction is essential for promoting sustainable travel by expanding utility theory to include also the eudaimonic value of...     

Web-based survey design for unravelling semi-compensatory choice in transport and urban planning

The estimation of semi-compensatory models is gaining momentum in transport planning in recent years. However, traditional survey methodologies focus on collecting solely compensatory choice data, which leads to information loss when semi-compensatory models are estimated. The present study proposes a novel web-based survey that enables collecting data about the entire semi-compensatory choice process. The web-based environment allows seamless tracking of semi-compensatory choice protocols without interfering with the natural choice process and without introducing problems related to comprehension bias, narrative inconsistency and misinterpretation of the choice protocols. The procedure is applied to rental apartment choice by students and results shed light on semi-compensatory choice by: (1) demonstrating the importance of choice set formation; (2) unravelling the distribution of threshold selection across the population; (3) revealing the linkage between the viable choice-set and the choice.     

The importance of industrial and socio-economic considerations for maritime management and newly developed ecosystem based management plans

Commercial maritime management activities have significant industrial and socio-economic dimensions that need to be addressed from the onset of the policy planning and policy-making process. This commentary addresses the importance of industrial and socio-economic dimensions and the need to formalize their role in newly developed ecosystem based fisheries management plans that are currently being considered in the USA. It builds upon a discussion presented in this journal by Everett (2005).     

后桥钢板激光-MIG复合焊接优化研究

研究了两种后桥桥壳用低合金钢板在激光-MIG复合焊接中,接头形状、接头间隙及MIG参数变化(大、中、小MIG参数)对焊缝形状及焊缝喉厚的影响.研究结果表明,MIG参数应设置成大、中MIG参数水平,以保证在一定的接头间隙下有充足的焊接材料填入间隙而形成部分焊透的焊缝,使焊缝喉厚满足焊接强度要求;过高的MIG输入能量和过多的焊料(丝)填入将导致焊缝横截面积增大,但对焊缝喉厚的影响不是很明显;当MIG参数设置成小MIG参数水平时,0.5 mm的接头间隙或切角面为3 mm×2 mm时,对获得较大的焊缝喉厚有利.