New strategy for automated hazard analysis of chemical plants. Part 2: Reasoning algorithm and case study

1997 ◽  
Vol 10 (2) ◽  
pp. 127-134 ◽  
Author(s):  
Jung Chul Suh ◽  
Sangbum Lee ◽  
En Sup Yoon
Keyword(s):  
Hazard Analysis ◽  
Chemical Plants ◽  
New Strategy ◽  
Reasoning Algorithm

Urban flood hazard analysis in present and future climate after statistical downscaling: a case study in Ha Tinh city, Vietnam

2021 ◽  
Vol 18 (4) ◽  
pp. 257-274
Author(s):  
T. T. A. Le ◽  
N. T. Lan-Anh ◽  
V. Daskali ◽  
B. Verbist ◽  
K. C. Vu ◽  
...  
Keyword(s):  
Statistical Downscaling ◽  
Flood Hazard ◽  
Hazard Analysis ◽  
Future Climate ◽  
Urban Flood

Narrative Scientific Data Visualization in an Immersive Environment

2021 ◽  
Author(s):  
Richen Liu ◽  
Hailong Wang ◽  
Chuyu Zhang ◽  
Xiaojian Chen ◽  
Lijun Wang ◽  
...  
Keyword(s):  
Data Visualization ◽  
Domain Knowledge ◽  
User Study ◽  
Scientific Visualization ◽  
Scientific Data ◽  
Immersive Environments ◽  
Related Information ◽  
New Strategy ◽  
Scientific Data Visualization

Abstract Motivation Narrative visualization for scientific data explorations can help users better understand the domain knowledge, because narrative visualizations often present a sequence of facts and observations linked together by a unifying theme or argument. Narrative visualization in immersive environments can provide users with an intuitive experience to interactively explore the scientific data, because immersive environments provide a brand new strategy for interactive scientific data visualization and exploration. However, it is challenging to develop narrative scientific visualization in immersive environments. In this paper, we propose an immersive narrative visualization tool to create and customize scientific data explorations for ordinary users with little knowledge about programming on scientific visualization, They are allowed to define POIs (point of interests) conveniently by the handler of an immersive device. Results Automatic exploration animations with narrative annotations can be generated by the gradual transitions between consecutive POI pairs. Besides, interactive slicing can be also controlled by device handler. Evaluations including user study and case study are designed and conducted to show the usability and effectiveness of the proposed tool. Availability Related information can be accessed at: https://dabigtou.github.io/richenliu/

Safety Assessment of Long Term Serviced Pressure Vessels: A Case Study of Typical Refining and Chemical Plants in China

2021 ◽  
Author(s):  
Zhiyuan Han ◽  
Guoshan Xie ◽  
Haiyi Jiang ◽  
Xiaowei Li
Keyword(s):  
Pressure Vessel ◽  
Safety Assessment ◽  
Failure Modes ◽  
Pressure Vessels ◽  
Time Dependent ◽  
Chemical Plants ◽  
Safety Specification ◽  
Detailed Assessment

Abstract The safety and risk of the long term serviced pressure vessels, especially which serviced more than 20 years, has become one of the most concerned issues in refining and chemical industry and government safety supervision in China. According to the Chinese pressure vessel safety specification TSG 21-2016 “Supervision Regulation on Safety Technology for Stationary Pressure Vessel”, if necessary, safety assessment should be performed for the pressure vessel which reaches the design service life or exceeds 20 years without a definite design life. However, the safety and risk conditions of most pressure vessels have little changes after long term serviced because their failure modes are time-independent. Thus the key problem is to identify the devices with the time-dependent failure modes and assess them based on the failure modes. This study provided a case study on 16 typical refining and chemical plants including 1870 pressure vessels serviced more than 20 years. The quantitative risk and damage mechanisms were calculated based on API 581, the time-dependent and time-independent failure modes were identified, and the typical pressure vessels were assessed based on API 579. Taking the high pressure hydrogenation plant as an example, this study gave the detailed assessment results and conclusions. The results and suggestions in this study are essential for the safety supervision and extending life of long term serviced pressure vessels in China.

The application of quality tools in effective implementation of HACCP

2018 ◽  
Vol 35 (9) ◽  
pp. 1920-1940 ◽  
Author(s):  
Manjeet Kharub ◽  
Shah Limon ◽  
Rajiv Kumar Sharma
Keyword(s):  
Food Safety ◽  
Hazard Analysis ◽  
Safety System ◽  
Hazard Identification ◽  
Content Type ◽  
Hazard Control ◽  
Pca Method ◽  
Pharmaceutical Industries ◽  
Quality Tools

Purpose The purpose of this paper is to empirically investigate the quality tool’s impact on the effectiveness of the Hazard Analysis and Critical Control Point (HACCP)-based food safety system and correlation studies between HACCP effectiveness and business performance in food and pharmaceutical industries. Design/methodology/approach A total of 116 survey responses of prominent food and pharmaceutical firms are used to fulfil the aim of this study. The principal component analysis (PCA) method was applied to classify quality tools into a finite number of groups. Further, multiple regression methods are employed to investigate the correlation between HACCP effectiveness and firm’s performance indicators. Findings Quality tools are classified into three categories on the basis of their application by using the PCA method: quality tools for hazard identification, quality tools for hazard analysis (QTHA) and quality tools for hazard control. The regression analysis revealed that QTHA has a substantial impact on HACCP objectives (hazard identification, hazard assessment and hazard control). Additionally, the results suggest that the successful implementation of HACCP-based food safety system also delivers a direct influence on the operational and financial performance of the food and pharmaceutical industries. Originality/value This paper contributes to the existing body of HACCP knowledge by providing a framework supported by an empirical case study. The case study clustered quality tools into three broad categories related to their application of a HACCP project. Study results can guide and motivate managers to use quality tools with the aim of successful implantation of the HACCP-based food safety system, especially in food and pharmaceutical industries.

Multi-element pollution in soil, ground and surface water from abandoned chromate chemical plants: a case study in Hangzhou, China

2015 ◽  
Vol 74 (4) ◽  
pp. 2861-2870 ◽  
Author(s):  
Lina Zou ◽  
Shaoxian Wang ◽  
Lei Liu ◽  
Muhammad Z. Hashmi ◽  
Xianjin Tang ◽  
...  
Keyword(s):  
Surface Water ◽  
Chemical Plants

scholarly journals LINKING ISLAMIC COMMERCIAL AND SOCIAL FINANCE WITH SPECIAL REFERENCE TO CASH-WAQF AS NEW STRATEGY OF INTEREST-FREE MICRO-CREDIT FOR FAMILY EMPOWERMENT OF THE POOR TOWARDS ESTABLISHING WORLD SOCIAL BANK: A CASE STUDY APPROACH

2018 ◽  
Vol 3 ◽  
pp. 1-32
Author(s):  
Muhammad Abdul Mannan
Keyword(s):  
Special Reference ◽  
Case Study Approach ◽  
Study Approach ◽  
Family Empowerment ◽  
The Poor ◽  
New Strategy ◽  
Micro Credit

Linking Islamic Commercial and Social Finance with Special Reference to Cash-Waqf as New Strategy of Interest-Free Micro-Credit for Family Empowerment of the Poor Towards Establishing World Social Bank: A Case Study Approach

scholarly journals Exposure-based risk assessment and emergency management associated with the fallout of large clasts

2018 ◽  
Author(s):  
Sara Osman ◽  
Eduardo Rossi ◽  
Costanza Bonadonna ◽  
Corine Frischknecht ◽  
Daniele Andronico ◽  
...  
Keyword(s):  
Hazard Analysis ◽  
Mount Etna ◽  
Particle Sedimentation ◽  
Severe Injuries ◽  
Effective Strategies ◽  
Safe Area ◽  
Sedimentation Model ◽  
Hazard Zone ◽  
The Many

Abstract. Fallout of ballistic blocks and bombs ejected from eruptive vents represents a well-known hazard in proximal areas. However, fallout of large clasts sedimenting from plume margins extending to medial areas with the potential to produce severe injuries to people and cause damage to infrastructure, is often overlooked. Recent eruptive events at Mount Etna (Italy) provide a clear example where large-clast fallout from plume margins (> 5 cm) has posed a real threat both to the many visitors reaching the summit area and to local infrastructure, and, therefore, has been selected as a case study. To quantify this hazard, a new particle-sedimentation model was calibrated with field data and then used for probabilistic hazard assessments. For a fully probabilistic scenario the hazard zone covered 72 km2 and included some 125 km of paths and roads, and 15 buildings; evacuation on foot to a safe area was estimated at almost 4 hours, but this could be reduced to less than 3 hours if two shelters were provided. Our results show the importance of integrating probabilistic hazard analysis of large-clast fallout within effective strategies of risk management and reduction, especially in the case of volcanoes where visitors can reach the summit areas.

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