scholarly journals Continuous Improvements at Operator Level

2020 ◽  
Vol 10 (1) ◽  
pp. 64-70 ◽  
Author(s):  
Jon Lerche ◽  
Hasse Neve ◽  
Søren Wandahl ◽  
Allan Gross

AbstractFew empirical studies have previously reported on the implementation of takt planning and utilizing Deming cycles (PDCA) to control construction workflows continuously. This paper presents a case study from the offshore renewable industry, closely related to construction. The paper aims to develop and evaluate a conceptual model combining takt planning and the Deming cycle within the offshore wind construction environment. The conceptual model has through interactions with construction experts been modified for a visual board implementation, covering two alternative processes with a fixed number of technicians per performing team. The knowledge base for the conceptual model is based on Takt planning implementation from the lean construction community and PDCA implementation from the lean production community. The main contribution of this paper is the development and evaluation of the conceptual model combining takt planning and the Deming cycle in a construction environment. This conceptual model has potential implications in the construction and refurbishment industry.

2021 ◽  
Vol 11 (12) ◽  
pp. 5513
Author(s):  
Muhammad Jamil ◽  
Numair Ahmed Siddiqui ◽  
Abdul Hadi Bin Abd Rahman ◽  
Noor Azahar Ibrahim ◽  
Mohd Suhaili Bin Ismail ◽  
...  

Deepwater lobes constitute a significant volume of submarine fans and are primarily believed to exhibit a simple sheet geometry. However, recent studies interpret the geometries of these deep-marine lobes as distinct with respect to the complexity of the facies and their distribution. Hence, a conceptual model of deep-marine sediments is essential to discuss the deep-marine sediments associated with the fan and lobe architecture. The present study highlights the facies heterogeneity and distribution of various lobe elements at a multiscale level by considering a case study of the West Crocker Formation of Sabah in northwest Borneo. The formation was logged on a bed-to-bed scale from recently well-exposed sections, with a total vertical thickness of more than 300 m. The lithological characteristics, bed geometry, sedimentary textures and structures of individual beds were used to categorize the rock units into nine sedimentary lithofacies: five sandstone lithofacies (S1–S5), one hybrid bed facies (H), two siltstone facies (Si1 and Si2) and one shale or mudstone facies (M). These facies were grouped into four facies associations (FA1–FA4), which were interpreted as lobe axis (FA1), lobe off-axis (FA2), lobe fringe (FA3) and distal fringe to interlobe (FA4) facies associations. This study is applicable for the distribution of lobes and their subseismic, multiscale complexities to characterize the potential of hydrocarbon intervals in deep-marine sand-shale system around the globe.


2021 ◽  
Vol 9 (5) ◽  
pp. 543
Author(s):  
Jiawen Li ◽  
Jingyu Bian ◽  
Yuxiang Ma ◽  
Yichen Jiang

A typhoon is a restrictive factor in the development of floating wind power in China. However, the influences of multistage typhoon wind and waves on offshore wind turbines have not yet been studied. Based on Typhoon Mangkhut, in this study, the characteristics of the motion response and structural loads of an offshore wind turbine are investigated during the travel process. For this purpose, a framework is established and verified for investigating the typhoon-induced effects of offshore wind turbines, including a multistage typhoon wave field and a coupled dynamic model of offshore wind turbines. On this basis, the motion response and structural loads of different stages are calculated and analyzed systematically. The results show that the maximum response does not exactly correspond to the maximum wave or wind stage. Considering only the maximum wave height or wind speed may underestimate the motion response during the traveling process of the typhoon, which has problems in guiding the anti-typhoon design of offshore wind turbines. In addition, the coupling motion between the floating foundation and turbine should be considered in the safety evaluation of the floating offshore wind turbine under typhoon conditions.


2020 ◽  
pp. 095207672097760
Author(s):  
Andreas Eriksen ◽  
Alexander Katsaitis

The increased authority delegated to independent agencies raises questions about the conditions of politically accountable governance, and specifically parliament’s role as a representative institution. Focusing on committee hearings as an accountability mechanism, we ask: How can a parliament employ hearings to ensure that the ends pursued by agencies have a democratic foundation? We propose a model of “mutual attunement” where accountability relations presuppose a process of working-out shared understandings of the ends, means and circumstances of policy needs. We test our argument through a case study assessing the interaction between the European Parliament’s Committee on Economic & Monetary Affairs and the European Securities and Markets Authority. Theoretically, we contribute to discussions on agency accountability and European governance, while providing a novel conceptual model and the first analysis of its kind.


2020 ◽  
Vol 12 (5) ◽  
pp. 1947 ◽  
Author(s):  
Philip Hallinger ◽  
Vien-Thong Nguyen

This systematic review of research used science mapping as a means of analyzing the knowledge base on education for sustainable development (ESD) in K-12 schooling. The review documented the size, growth trajectory and geographic distribution of this literature, identified high impact scholars and documents, and visualized the “intellectual structure” of the field. The database examined in this review consisted of 1842 English language, Scopus-indexed documents published between 1990 and 2018. The review found that the knowledge base on ESD has grown dramatically over the past 30 years, with a rapidly accelerating rate of publication in the past decade. Although the field has been dominated by scholarship from Anglo-American_European nations, there is evidence of increasing geographic diversification of the ESD knowledge base over the past 15 years. Citation analyses identified authors who have had a significant influence on the development of this literature. Author co-citation analysis revealed three “schools of thought” that comprise the “intellectual structure” of this knowledge base: Education for Sustainable Development, Developing a Sustainability Mindset, Teaching and Learning for Sustainability. Document content analyses led to the conclusion that the current knowledge base is heavily weighted towards critical, descriptive and prescriptive papers, with an insufficient body of analytical empirical studies. Several recommendations are offered for strengthening this literature.


Author(s):  
Marco Ardolino ◽  
Nicola Saccani ◽  
Federico Adrodegari ◽  
Marco Perona

Businesses grounded upon multisided platforms (MSPs) are found in a growing number of industries, thanks to the recent developments in Internet and digital technologies. Digital MSPs enable multiple interactions among users of different sides through information and communication technologies. The understanding of the characteristics and constituents of MSPs is fragmented along different literature streams. Moreover, very few empirical studies have been carried out to date. In order to fill this gap, this paper presents a three-level framework that describes a digital MSP. The proposed framework is based on literature analysis and multiple case study. On the one hand, the framework can be used to describe MSP as it provides an operationalization of the concept through the identification of specific dimensions, variables and items; on the other hand, it can be used as an assessment tool by practitioners, as exemplified by the three empirical applications presented in this paper.


2016 ◽  
Vol 20 (2) ◽  
pp. 364-385 ◽  
Author(s):  
Kai Wing Chu

Purpose Despite the fact that schools should be places where learning occurs, most schools have overlooked the importance of knowledge. In contrast, commercial firms have recognized knowledge as a strategic intangible asset and a key resource of the enterprises. Therefore, enterprises have already harnessed knowledge to a great extent with wide practice of knowledge management (KM). The purpose of this paper is to show that KM could be applied to the education sector similar to the practice in the business world for leveraging intellectual assets. This paper examines how schools can kick off the process of KM implementation. This paper also reports what have been done and what should be done in KM implementation better in a school. This can give insights for schools which will try KM in near future. Design/methodology/approach The paper uses a case study in a secondary school to explore how KM can be kicked off and sustained in a school setting. A KM system called knowledge base and a document management system called Digital Archive were developed to serve as the infrastructure for knowledge sharing. Lesson study and communities of practice (CoPs) were adopted to be the platforms for knowledge sharing among teachers in the school. A case study of the processes and lesson learned was done in this paper. Multiple sources of data, including observations, questionnaires and interviews, have been collected for evaluation. Findings In this paper, KM implementation was found to be effective through dual approaches: information-based and people-/interaction-based approaches. A knowledge base and a Digital Archive as knowledge repositories and lesson study and CoPs as platforms for knowledge sharing have been successfully established to facilitate sharing information/knowledge and nurturing a sharing culture and trust. Challenges faced and the related coping strategies during the process of implementation were shared and reflected. It was also found that building sharing culture is the critical turning point of the process of KM implementation. Breaking through the barrier of sharing was found to be very essential to KM implementation. Research limitations/implications This paper adopts case study methodology to report the process of KM implementation in a school. Although these results of the study conducted in one school may not be generalized to other school contexts, the lessons learned in the study will be a strong empirical evidence of research of KM implementation, especially in schools. Because of the limited number of prior studies and the importance of the pioneering work of launching KM implementation, this paper tries to address the research gap by using theory building from cases as a research strategy rather than theory testing research, especially in “how”and“why” in the steps of kicking off KM implementation in an unexplored research area. Practical implications This paper shows a case of KM implementation in a school with thoughtful procedures of implementing information-based and people-/interaction-based approaches. The paper is a showcase that will shed light on the processes and lessons learned and also helps to provide a model for schools who are interested in applying KM in their schools. Social implications Most people might think that KM can be applied only in commercial sector. This paper shows that KM can also be adopted in schools as well as other sectors. Originality/value This paper represents one of the pioneering work of implementing KM in a school. It hopes to make contributions for KM implementation also in the public sector within which are non-profit-making organizations.


2014 ◽  
Vol 26 (12) ◽  
pp. 2023-2026 ◽  
Author(s):  
W. F. Fick ◽  
J. P. van der Borgh ◽  
S. Jansen ◽  
R. T. C. M. Koopmans

ABSTRACTA problematic and disturbing behavior which can develop in people with dementia, is vocally disruptive behavior (VDB). To date, the study of VDB is underdeveloped and with only a limited knowledge base. Medications commonly used in VDB have limited benefits and specific risks in patients with dementia. This report details the case of a patient with frontotemporal dementia with VDB, which responded very well by providing a lollipop. Subsequently, we pose theory-based hypotheses in order to try to explain the beneficial effect of this intervention. This may contribute to a better understanding of VDB and possible treatment strategies.


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