40 research outputs found
THE CHALLENGES OF GREENNESS ON FREIGHT TRANSPORTATION, THE CASE OF BRING LOGISTICS
No full text“The negative environmental impacts of transportation have gained wide recognition and are at the core of issues of sustainability, especially in urban areas” (Rodrigue, Slack & Comtois, 2001). Many prior researches have been carried out on negative impact of transportation on environment. To minimize and to mitigate environmental concerns, green logistics and green transportation has been introduced in recent time. Logistics companies are becoming more flexible and slowly started moving towards green implementation. Implementation of this new strategy has definite challenges for logistics companies. In order to understand environmental problems caused by freight transportation and its challenges associated with green implementation, the aspect of greenness and its challenges were examined especially on the case of Bring Logistics. In this thesis, various modes of transportation and their environmental problems were discussed, city traffic and its consequences, implementation challenges, use of models, etc The purpose of this research is to understand environmental problems caused by freight transportation and organisational challenges of green implementation in logistics firms. To fulfill the purpose of this work, a qualitative research method was used with an inductive approach chosen for methodology. Materials were collected both primary and secondary sources and three types of interview were conducted i.e. face-face interview, interview through email and by phone. Eight interviews were conducted involving seven personalities from Bring Logistics Jönköping, Sweden. In conclusion, a logistical structural changes were implemented as a model in order for the company to be successful in their green implementation. The problems caused by freight transportation were noise, air pollution and climate change. The challenges of green implementation were identified as financial, employees inflexibility, distribution delay, taxation and fuel pricing.The purpose of this research is to understand environmental problems caused by freight transportation and organisational challenges of green implementation in logistics firms
Closed Form HJB Solution for Path Planning of a Robot Manipulator with Warehousing Applications
No full textReal-time optimal path planning for robotic manipulations in task space is a very fundamental and important problem. In this paper, the problem of generating robot trajectories in an obstacle-ridden environment is formulated under an optimal control framework using Hamilton-Jacobi-Bellman (HJB) equation. The novel contribution of this paper is that a closed form HJB control solution (a necessary and sufficient condition for global optimality of a control solution with respect to a cost function) has been achieved for generating real-time optimal trajectories for a robot manipulator. In contrast with the decoupled end-effector path planning and subsequent trajectory generation, the proposed scheme can exploit sensory input for real-time trajectory generation where the end-effector path as well as the joint trajectory is recomputed online while satisfying the real-time constraints. The stability and the performance of the proposed control framework is shown theoretically via Lyapunov approach and also verified experimentally using a 6 degrees of freedom (DOF) Universal Robot (UR) 10 robot manipulator. It is shown that a significant saving in cost metrics can be obtained over similar trajectory generation approaches from the state-of-the-art with obstacle-ridden environment and also has better performance in high speed tracking applications. Warehouse applications of the proposed scheme in case of static and dynamic targets with respect to the robot manipulator is also included.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Learning & Autonomous Contro
Establishing relationship between value proposition and concept validation
No full textFuzzy front-end innovation (FFEI) is the most challenging and unmanageable stage of new product development. This is due to the uncertain and dynamic nature of product, market and consumer knowledge related to innovation. Value proposition creation (VPC) process is a part of FFEI. The scope of the research of this thesis is from VPC kick-off until finalisation of the concept. It involves opportunity exploration, generation, prioritisation, validation of ideas and concepts. Although VPC is being studied in academic and by organisations since decades still organisations are going through a high number of iteration and continual change of scope of VPC process before finalising the concept which is accepted by consumers. The acceptance of the concepts is checked qualitatively and quantitative with consumers. The main reason of the failure of the concept to gain consumer acceptance is the lack of structure of VPC process, lack of understanding of attributes of VPC, lack of understanding of tools and processes required to define the key attributes, and lack of understanding of influence of innovation on these attributes of value proposition (VP). Attributes of the value proposition can be defined as the consumer, market, product, process, and organisational characteristics of value proposition. Furthermore, innovation is considered as the newness to the organisation. Hence, the objective of this research is to prepare theoretical framework showing the relationship between attributes of VP and acceptance of the concept which can be used by managers as a step by step guide to design a sprint of VPC process based on the scope of innovation. Philips is selected for this research to understand the real-life cases which involve VPC process. The initial conceptual model was prepared from literature review and desk research at Philips which is validated through semi-structured interview. Final conceptual model, theoretical framework 1, and theoretical framework 2 are prepared from case study and interview result analysis. Final conceptual model shows the key attributes of VP which influence acceptance of the concept by consumers and their role (independent variable or moderators). These key attributes are unmet consumer need, superior offer, competitive price, involvement of consumer, involvement of multifunctional team, additional cost, emotional appeal and brand influence. Theoretical framework 1 showed step by step method to guide VPC process by identifying above-mentioned key attributes for inspiration (opportunity exploration), ideation, and implementation phase. It further showed the influence of scope of innovation (incremental or disruptive) on the relationship between VP and acceptance of the concept by consumer. Theoretical framework 2 identified the tools and processes essential to define the attributes of VP to generate high concept test score from consumers. This research contributed to academia and practice by identifying key attributes of VP, establishing relationship between attributes of VP and acceptance of the concept by consumers, providing structure to the VPC sprint, defining attributes essential for different innovation type, and identifying the tools and processes needed to define each key attribute of VP.Management of Technology (MoT
Structural and magnetic properties of tetragonal distorted spinel CuMn2O4 prepared by single step method
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Effect of electron correlations on the lifshitz transition at the LaAlO3/SrTiO3 interface
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