COLLATING EVIDENCE FOR A UNIVERSAL METHOD OF STABILITY ASSESSMENT OR GUIDANCE

2021 ◽  
Vol 152 (A2) ◽  
Author(s):  
B Deakin

This paper reviews two related projects conducted for the Maritime and Coastguard Agency, and collates their findings with additional casualty data, in an attempt to promote a simple method of safety assessment. The method was developed by the author during research conducted for the Maritime and Coastguard Agency. It was evaluated in a subsequent research project, where the recommendations were that it was not worthy of adoption or further development for regulatory purposes. Contrary to that evaluation, the method has received supportive comments from a number of naval architects, and this paper is offered as a means of presenting it more widely to the industry. Individuals may wish to use the method to assess their own designs, or to provide some simple safety guidance to operators.

2018 ◽  
Vol 2 (Special edition 2) ◽  
pp. 167-184
Author(s):  
Boris Tomić ◽  
Anton Turk ◽  
Bruno Čalić

The paper reviews the design procedure and recent work published on the topic of the damage stability and the safety assessment criteria that is established accordingly. The available damage scenarios must be designed prior to the safety assessment of a damaged ship. Another aspect of the discussions is an opinion on some problematic aspects of the damage stability regulations with practical aspects presented in literature very sparse and the fact that different computer programs may give divers outcomes. A little review on the damage stability requirements with its new regulations is given. Stability assessment is performed on a selected container ship using the Maxsurf software for both the intact and damage condition of the vessel, while the parameters related to damage stability are identified and categorized when developing deterministic and probabilistic damage scenarios.


Author(s):  
Shanshan Shao ◽  
Guodong Jia ◽  
Liang Sun ◽  
Hui Wang

The fitness-for-service assessment is widely used to demonstrate whether identified defects or in-service deterioration threaten the structure integrity of the pressure equipment. This article introduces the development of the Chinese national safety assessment standard. The assessment procedure and assessment techniques of current Chinese national safety assessment standard GB/T 19624-2004 are demonstrated, and the improvement is proposed. In order to maintain availability of aging equipment and enhance the long-term economic performance of in service pressure equipment, a new Chinese national safety assessment standard system is methodology proposed based on the analysis of some international structure integrity procedures or standards. A new national standard fitness-for-service which focuses on the evaluation of in-service damage and degeneration will be established while GB/T 19624 is applicable for general defects.


2019 ◽  
Vol 6 (2) ◽  
pp. 207-223
Author(s):  
Luise Guest

Abstract In December 2016 a group of researchers led by Professor Jiang Jiehong travelled to Jingdezhen as fieldwork for the Everyday Legend research project, funded by the Leverhulme Trust. Representing the White Rabbit Collection of Contemporary Chinese Art, Australia, I was invited to participate. This article developed from reflections on the fieldwork component of the research project, as well as the formal and informal discussions that took place, at the time and subsequently, in Shanghai, Birmingham, Groningen and London. In 2018, as a further development of this process of reflection, I conducted semi-structured interviews with two artists of different generations: the article examines how Liu Jianhua and Geng Xue approach the use of porcelain as a contemporary art material. Each has spent extensive periods of time in Jingdezhen and each is immersed in this particularly Chinese tradition. At the same time, each is identified (and identifies themselves) as practising in a global contemporary art context and participates in exhibitions and exchanges internationally. Considered in the context of current and historical discourses around global contemporaneity2 and its manifestations in twenty-first-century China, their work illuminates the key question that the Everyday Legend project was designed to examine: how can contemporary art and traditional Chinese craft practices intersect, informing and enriching each other? As representatives, respectively, of the generation who emerged into the first years of the post-Cultural Revolution Reform and Opening period, and of a younger generation educated partly outside China, they reveal how Chinese artists strategically negotiate local and global in positioning their work as contemporary reinventions of traditional forms and materiality.


2001 ◽  
Vol 89 (6) ◽  
Author(s):  
Q. Tianwei ◽  
T. Hongxiao ◽  
C. Jiajun ◽  
W.J. Sheng ◽  
L. Chunli ◽  
...  

A five-year cooperative research project between China Institute for Radiation Protection (CIRP) and Japan Atomic Energy Research Institute JAERI) on establishment of methodology for safety assessment of shallow land disposal of low-level radioactive wastes (LLRW) had been conducted since 1988. This paper describes the simulation of the migration of


1999 ◽  
Vol 122 (2) ◽  
pp. 93-99 ◽  
Author(s):  
J. Wang ◽  
O. Kieran

The offshore installations (safety case) regulations were developed in the UK in 1992 and came into force in 1993 in response to the accepted findings of the Piper Alpha enquiry. Recently, “the offshore installations and wells (design and construction, etc.) regulations” (DCR 1996) were introduced to offshore safety analysis. From the earliest stages of the installation’s life cycle, operators must ensure that all safety-critical elements in both the software and system domains be assessed. Hazards can be identified and the risks associated with them can be assessed and evaluated using a number of techniques and decision-making strategies, all aimed at producing an installation with lifetime safety integrity. In this paper, following a brief review of the current status of offshore safety regulation in the UK, several offshore safety assessment frameworks are presented. These include top-down, bottom-up, probabilistic, and subjective approaches. The conditions under which each approach may be applied effectively and efficiently are discussed. Probabilistic safety-based decision-making and subjective safety-based decision-making are then studied. Two examples are used to demonstrate the decision-making approaches. Recommendations on further development in offshore safety analysis are suggested. [S0892-7219(00)00901-8]


2018 ◽  
Author(s):  
Rebecca Grant ◽  
Iain Hrynaszkiewicz

AbstractThis paper describes the adoption of a standard policy for the inclusion of data availability statements in all research articles published at the Nature family of journals, and the subsequent research which assessed the impacts that these policies had on authors, editors, and the availability of datasets. The key findings of this research project include the determination of average and median times required to add a data availability statement to an article; and a correlation between the way researchers make their data available, and the time required to add a data availability statement. This paper will be presented at the International Digital Curation Conference 2018, and has been submitted to the International Journal of Digital curation.


2004 ◽  
Vol 02 (01) ◽  
pp. 1-19 ◽  
Author(s):  
BAILIN HAO ◽  
JI QI

This is a review of a new and essentially simple method of inferring phylogenetic relationships from complete genome data without using sequence alignment. The method is based on counting the appearance frequency of oligopeptides of a fixed length (up to K=6) in the collection of protein sequences of a species. It is a method without fine adjustment and choice of genes. Applied to prokaryotic genomes it has led to results comparable with the bacteriologists' systematics as reflected in the latest 2002 outline of the Bergey's Manual of Systematic Bacteriology. The method has also been used to compare chloroplast genomes and to the phylogeny of Coronaviruses including human SARS-CoV. A key point in our approach is subtraction of a random background from the original counts by using a Markov model of order K-2 in order to highlight the shaping role of natural selection. The implications of the subtraction procedure is specially analyzed and further development of the new approach is indicated.


Author(s):  
Peter Øhrstrøm

<p>The HANDS (Helping Autism-diagnosed teenagers Navigate and Develop Socially) research project involves the creation of an e-learning toolset that can be used to develop individualized tools to support the social development of teenagers with an autism diagnosis. The e-learning toolset is based on ideas from persuasive technology. This paper addresses the system design of the HANDS toolset as seen from the user’s perspective. The results of the evaluation of prototype 1 of the toolset and the needs for further development are discussed. In addition, questions regarding credibility and reflections on ethical issues related to the project are considered.</p>


2001 ◽  
Vol 49 (8) ◽  
pp. 931-937 ◽  
Author(s):  
Shan-Rong Shi ◽  
Richard J. Cote ◽  
Clive R. Taylor

Development of the antigen retrieval (AR) technique, a simple method of boiling archival paraffin-embedded tissue sections in water to enhance the signal of immunohistochemistry (IHC), was the fruit of pioneering efforts guided by the philosophy of rendering IHC applicable to routine formalin-fixed, paraffin-embedded tissues for wide application of IHC in research and clinical pathology. On the basis of thousands of articles and many reviews, a book has recently been published that summarizes basic principles for practice and further development of the AR technique. Major topics with respect to several critical issues, such as the definition, application, technical principles, and further studies of the AR technique, are highlighted in this article. In particular, a further application of the heat-induced retrieval approach for sufficient extraction of nucleic acids in addition to proteins, and standardization of routine IHC based on the AR technique in terms of a test battery approach, are also addressed. Furthermore, understanding the mechanism of the AR technique may shed light on facilitating the development of molecular morphology. (J Histochem Cytochem 49:931–937, 2001)


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jingjing Zhao ◽  
Hongyi Xu ◽  
Hugo Lebrette ◽  
Marta Carroni ◽  
Helena Taberman ◽  
...  

AbstractMicro-crystal electron diffraction (MicroED) has shown great potential for structure determination of macromolecular crystals too small for X-ray diffraction. However, specimen preparation remains a major bottleneck. Here, we report a simple method for preparing MicroED specimens, named Preassis, in which excess liquid is removed through an EM grid with the assistance of pressure. We show the ice thicknesses can be controlled by tuning the pressure in combination with EM grids with appropriate carbon hole sizes. Importantly, Preassis can handle a wide range of protein crystals grown in various buffer conditions including those with high viscosity, as well as samples with low crystal concentrations. Preassis is a simple and universal method for MicroED specimen preparation, and will significantly broaden the applications of MicroED.


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