Search results

This paper aims to propose a 3D-map aided tightly coupled positioning solution for land vehicles to reduce the errors caused by non-line-of-sight (NLOS) and multipath interference in urban canyons.

First, a simple but efficient 3D-map is created by adding the building height information to the existing 2D-map. Then, through a designed effective satellite selection method, the distinct NLOS pseudo-range measurements can be excluded. Further, an enhanced extended Kalman particle filter algorithm is proposed to fuse the information from dual-constellation Global Navigation Satellite Systems and reduced inertial sensor system. The dependable degree of each selected satellite is adjusted through fuzzy logic to further mitigate the effect of misjudged LOS and multipath.

The proposed solution can improve positioning accuracy in urban canyons. The experimental results evaluate the effectiveness of the proposed solution and indicate that the proposed solution outperforms all the compared counterparts.

The effect of NLOS and multipath is addressed from both the observation level and fusion level. To the authors’ knowledge, mitigating the effect of misjudged LOS and multipath in the fusion algorithm of tightly coupled integration is seldom considered in existing literature.

Climate change, deforestation and hydropower dams are contributing to environmental change in the Lower Mekong River region, the combined effects of which are felt by many rural Cambodians. How people perceive and manage the effects of environmental change will influence future adaptation strategies. The objective of this research was to investigate whether the use of a low-cost, explicitly spatial method (participatory mapping) can help identify locally relevant opportunities and challenges to climate change adaptation in small, flood-prone communities. Four villages along the banks of the Mekong River in Kratie Province, Cambodia, were the subject of this research. To identify perceived environmental hazards and adaptive responses, eight workshops were conducted using focus-group interviews and participatory mapping. The communities’ responses highlight the evolving nature of environmental hazards, as droughts increase in perceived importance while the patterns of wet season flooding were also perceived to be changing. The attribution of the drivers of these hazards was strongly skewed towards local factors such as deforestation and less towards regional or global drivers affecting the hydrology of the Mekong and climate patterns. Combining participatory mapping with focus-group interviews allowed a greater depth of understanding of the vulnerabilities and opportunities available to communities than reliance on a single qualitative method. The study highlights the potential for a bottom-up transfer of information to strengthen existing climate change policies and tailor adaptation plans to local conditions.

This paper aims to investigate the potential role of the Emergency Department (ED) layout in enhancing its functionality. It applies a performance-based building design (PBBD) approach to evaluate emergency department functionality and efficiency as the most important criterion behind the success of the hospital service.

A quantitative approach based on space syntax theory was adopted through four syntactic maps (isovist, axial, convex, and visibility graph analysis VGA), to depict three case studies in Erbil city hospitals by analyzing three different layout typologies of ED such as Podular, Ballroom and Linear through measuring wayfinding, accessibility, privacy, visibility, time spend-length of stay and corridor circulation as layout factors.

This paper provides empirical insights on how the ED layout typology factors significantly affect producing functionally efficient EDs, whereas the Ballroom ED layout typology is the most effective compared to others. Given the importance of ED in enhancing a healthy environment for patients and staff, study findings are valuable resource for health designers, who play a critical role in ensuring patients enjoy a healthy and safe environment.

This paper has attempted to identify the appropriate layout of ED for effective functional performance in hospitals. A syntactical analysis between three different ED layout typologies based on the layout variables has been analysed using the PBBD approach. There has been no attempt carried out so far to analyse the functional performance of the PBBD approach in different ED layouts using layout variables.

This paper examines the way social class influences the relationship between business mentors and small business owner‐managers.

The paper is based on the author's experience of mentoring businesses with The Prince's Trust. Three businesses were selected as cases. The methodological approach involved participant‐observation over an extended period of time. These observations were supplemented by semi‐structured interviews.

The paper focuses on Bourdieu's concepts of habitus and cultural capital as key influences on the values and dispositions of owner‐managers. The working class owner‐managers in this study lacked a future orientation and as a result “lived for today”. They also had a fatalistic attitude to life arising from both their experience and an understanding of their “position” in society. Low aspiration levels were also evident in the way the owner‐managers in this study viewed ambition as “pretentious” and “getting above oneself”. In addition, they resisted the idea of being “rational” and preferred to utilise informal or “hot” information.

This paper concludes that professionals should resist adopting a “deficit model” that automatically assumes the values of the mentor are superior to those of the owner‐manager. In order to avoid this it is suggested that professionals should adopt a reflexive approach in their relationships with clients.

It could be argued that other factors besides social class will influence the owner‐manager/business mentor relationship and the way these businesses are run. However, a focus on social class was felt to be appropriate because of its neglect in small business research.

This paper aims to develop a conceptual framework of the implementation of the contact points (CPs) between Lean Six Sigma practices and Industry 4.0 technologies.

A systematic literature review was carried out based on two samples. A first sample containing 78 articles was analyzed through bibliometric indicators. After that, a second sample of 33 articles was analyzed in-depth according to research questions.

The conceptual framework involves 13 CPs between Lean Six Sigma (LSS) practices and I4.0 technologies (what), going through the technical requirements needed (how), categorized as information technology (IT), automation and competence requirements, to finally present the main results reported in the literature (why).

This paper presents an innovative perspective of interactions between digital technologies and LSS practices, expanding knowledge about Digital LSS. Such perspective gives emphasis to the importance of technical requirements, such as communication and connectivity protocols, network topology, machine-to-machine communication (M2M), human–machine interfaces (HMI), as well as analytical and digital skills.

The managerial implications regarding the digitalization of LSS practices address the investments required for the acquisition and maintenance of cyber-physical systems (CPS). Moreover, there is a need for the development of skills so that operators can successfully use the new technologies in a context of continuous improvement.

This paper presents a conceptual framework covering 13 CPs between LSS practices and Industry 4.0 technologies, the technical requirements and the expected results. It is hoped that this framework can assist future research and operational excellence projects towards digitalization.

Organisational Development (OD), with its focus on partnership working and distributed leadership, is increasingly advocated as an effective approach to driving change. Our evaluation of the impact of OD on delivery of integrated care in three London boroughs sheds light on how OD is being understood and implemented within health services, and what impact it is having on delivery of care.

The findings presented here are based on a qualitative and participatory evaluation. The authors looked at how health and social care professionals communicated and coordinated delivery of care and evaluated the impact of current OD activities on the ground to evidence whether and to which degree they are enabling frontline staff to change their working routines towards greater coordination.

Our findings highlight the limited reach and scope of a top-down approach to OD based on ad hoc coaching and staff engagement events, often delivered by external consultancies, and mostly focused at the senior management level. This approach fell short of enabling the creation of sustainable, integrated and collaborative organisations. Instead, some of the professionals that participated in our study tried to develop spaces that facilitated ongoing dialogue and mutual support among professionals on the ground.

Initiatives of bottom-up OD such as those described in this paper have greater potential to change working routines as they enable staff to move towards more collaborative and coordinated work.

These findings contribute to the literature on OD in public services and highlight the benefits of a context-sensitive, pragmatic, and long-term approach to OD to help create sustainable collaborative organisations.

The purpose of this paper is to improve decision quality, and therefore project and portfolio success, by testing the influence of different visual representations of interdependency data in a simulated decision experiment. A network mapping approach to visualize project interdependencies is introduced and compared with matrix and tabular displays.

A simulated decision task in a controlled classroom setting tested five hypotheses though a sample of 480 experiments.

The type of data representation used is associated with differing levels of decision quality, and the use of network mapping displays is aligned with the best results.

The findings are limited as this experiment-based study presented a simplified decision scenario and involved students rather than practicing managers. The findings are best interpreted in combination with organization-based research.

The findings of this study suggest that visual data displays, particularly network mapping displays, can provide benefits and improve project portfolio decision quality. Managers may draw upon this study to design ways to include visual data representations in their project portfolio management decision processes.

This study uses experimentation to complement organization-based studies to better understand the influence of different methods of visualizing data and managing interdependencies between projects. This research provides an important contribution to meet the acknowledged need for better tools to understand and manage project interdependencies.

This study aims to investigate Australian claimants’ experience of the total and permanent disability (TPD) insurance claims process and documents their recommendations for improvement.

A qualitative methodology was used. In all, 12 claimants with finalized TPD claims were recruited via their superannuation fund. Data collected from in-depth interviews were thematically analyzed and reported using the COREQ checklist. Extracts from verbatim transcription were included to represent the claimant without bias.

Most interviewees described a flawed claims process in which important information was withheld or unclear, procedures were complicated and arduous, communication was poor and frequent need for “chasing up” was frustrating. The claims process undermined the well-being of many interviewees at a critical time in their adjustment to disability. Lump sum payment yielded unexpected consequences for ten interviewees. Some interviewees retained a desire to work despite serious disability.

The use of purposive sampling means that findings may not represent the experience of all claimants with finalized TPD claims. Saturation of knowledge was reached despite the relatively small number of in-depth interviews conducted. In the absence of previous research, this study identifies areas of concern in the TPD claimant experience and posits a set of important claimant issues for further investigation.

A person-centred approach is needed. Claimants would benefit from introduction of clear process information, a single point-of-contact throughout claim, advocacy/support and rehabilitation.

This inaugural study provides an understanding of challenges faced by TPD claimants. All interviewees provided suggestions for improvement in the TPD claims process.

The field study aimed at exploring how capacities are influenced by external factors in the context of community-based disaster risk reduction (CBDRR).

The field study was conducted in a small rural area called Lapsibot in Lamjung district in Nepal. The article is based on a fieldwork conducted in April 2018. The different tools of data collection were inspired by the vulnerability and capacity assessment approach with a focus on various aspects of vulnerabilities and capacities with regard to disaster risk reduction (DRR) in Lapsibot.

The paper highlights that communities, in fact, need enhanced and extended capacities, not only existing inherent capacities, which are usually the main subject of capacity development in rural communities.

While there is absolutely no question of strong capacities at the community level, this paper appeals for a more in-depth investigation of an extended notion of capacities, where the effects of the rapid changes and increasing impact of the outside world are taken into consideration.