scholarly journals The Potential Hazard Analysis Method of Glare for Photovoltaic near airports or within

Author(s):  
Yu Bin Zhu
2018 ◽  
Vol 2 (4) ◽  
pp. 510-519
Author(s):  
Al Asyhar Aahyu Azady ◽  
Evi Widowati ◽  
Sri Ratna Rahayu

Abstrak Setiap tempat kerja selalu mempunyai risiko kemungkinan terjadinya kecelakaan dan penyakit akibat kerja. Pada tahun 2013 telah terjadi 406 kasus kecelakaan kerja di Kabupaten Boyolali, 372 pekerja (91,6%) berhasil sembuh, 25 pekerja (6,1%) sementara tidak mampu bekerja, 4 pekerja (0,9%) mengalami cacat, dan 5 pekerja (1,2%) meninggal dunia. Insiden kecelakaan dan cedera di tempat kerja dapat dikurangi dengan penggunaan Job Hazard Analysis. Penelitian ini dilaksanakan pada tahun 2018. Tujuan dari penelitian ini adalah untuk mengetahui potensi bahaya serta pengendalian yang tepat pada industri logam UD. A&D dengan metode Job Hazard Analysis. Jenis penelitian ini adalah deskriptif kualitatif dengan pendekatan observasional. Hasil penelitian menunjukkan terdapat 46 bahaya dan 82 risiko yang teridentifikasi. Hasil penilaian risiko terdapat 24 (29,6%) risiko rendah, 27 (32,9%) risiko sedang dan risiko tinggi berjumlah 31 (37,8%). Hasil penilaian dan pengendalian risiko dirancang dalam bentuk form Job Hazard Analysis. Kesimpulan penelitian ini adalah potensi bahaya yang ada belum dilakukan pengendalian secara optimal.   Abstract Each workplace always has a risk of possible accidents and occupational diseases. In 2013 there were 406 work accident cases in Boyolali District, 372 workers (91.6%) recovered, 25 workers (6.1%) were unable to work, 4 workers (0.9%) were disabled, and 5 workers (1.2%) died. Incidents of accidents and workplace injuries can be reduced by the use of Job Hazard Analysis. This research was conducted in 2018. The purpose of this research is to know the potential danger and proper control on UD metal industry. A & D with Job Hazard Analysis method. The type of this research is descriptive qualitative with observational approach.The results showed 46 hazards and 82 identified risks. Risk assessment results were 24 (29.6%) low risk, 27 (32.9%) medium and high risk 31 (37.8%). The results of risk assessment and control are designed in the form of Job Hazard Analysis form. The conclusion of this research is the potential hazard that has not been done optimally.  


2021 ◽  
Vol 55 (4) ◽  
pp. 132-142
Author(s):  
Paolo Masci ◽  
Sandy Weininger

Abstract This article reports on the development of usability engineering recommendations for next-generation integrated interoperable medical devices. A model-based hazard analysis method is used to reason about possible design anomalies in interoperability functions that could lead to use errors. Design recommendations are identified that can mitigate design problems. An example application of the method is presented based on an integrated medical system prototype for postoperative care. The AAMI/UL technical committee used the results of the described analysis to inform the creation of the Interoperability Usability Concepts, Annex J, which is included in the first edition of the new ANSI/AAMI/UL 2800-1:2019 standard on medical device interoperability. The presented work is valuable to experts developing future revisions of the interoperability standard, as it documents key aspects of the analysis method used to create part of the standard. The contribution is also valuable to manufacturers, as it demonstrates how to perform a model-based analysis of use-related aspects of a medical system at the early stages of development, when a concrete implementation of the system is not yet available.


Author(s):  
Haotian Niu ◽  
Cunbao Ma ◽  
Pei Han ◽  
Xiaoyan Sun

To solve the task-process-safety problem of airborne weather radar system, a set of case-inspired safety analysis method is proposed based on the STAMP(Systems-Theoretic Accident Model and Process). Taking weather radar system's task process in approaching stage as an example, a hierarchical control structure is constructed to identify unsafe control actions during the task process, and analyze the potential hazard causes associating with unsafe control actions. Then a safe flight control structure model is constructed and the accident case of Delta Airlines is analyzed to optimize the model. The safety of system task process is improved through putting forward the safe constraints which can control the propagation mechanism of accident. It is indicated through the above analysis that the method can comprehensively identify the potential hazard causes of system, and provide technical support for the safety design of airborne weather radar system.


2015 ◽  
Vol 3 (1) ◽  
pp. 1-9
Author(s):  
Hojatollah Kakaei ◽  
Reza Jafari Nodoushan ◽  
Maede Kamalvandi ◽  
Parvin Azad ◽  
Parvin Normohammadi ◽  
...  

GeoHazards ◽  
2021 ◽  
Vol 2 (4) ◽  
pp. 398-414
Author(s):  
Katsuichiro Goda

Surface fault displacement due to an earthquake affects buildings and infrastructure in the near-fault area significantly. Although approaches for probabilistic fault displacement hazard analysis have been developed and applied in practice, there are several limitations that prevent fault displacement hazard assessments for multiple locations simultaneously in a physically consistent manner. This study proposes an alternative approach that is based on stochastic source modelling and fault displacement analysis using Okada equations. The proposed method evaluates the fault displacement hazard potential due to a fault rupture. The developed method is applied to the 1999 Hector Mine earthquake from a retrospective perspective. The stochastic-source-based fault displacement hazard analysis method successfully identifies multiple source models that predict fault displacements in close agreement with observed GPS displacement vectors and displacement offsets along the fault trace. The case study for the 1999 Hector Mine earthquake demonstrates that the proposed stochastic-source-based method is a viable option in conducting probabilistic fault displacement hazard analysis.


Author(s):  
Lina Han ◽  
Qing Ma ◽  
Feng Zhang ◽  
Yichen Zhang ◽  
Jiquan Zhang ◽  
...  

Severe natural disasters and related secondary disasters are a huge menace to society. Currently, it is difficult to identify risk formation mechanisms and quantitatively evaluate the risks associated with disaster chains; thus, there is a need to further develop relevant risk assessment methods. In this research, we propose an earthquake disaster chain risk evaluation method that couples Bayesian network and Newmark models that are based on natural hazard risk formation theory with the aim of identifying the influence of earthquake disaster chains. This new method effectively considers two risk elements: hazard and vulnerability, and hazard analysis, which includes chain probability analysis and hazard intensity analysis. The chain probability of adjacent disasters was obtained from the Bayesian network model, and the permanent displacement that was applied to represent the potential hazard intensity was calculated by the Newmark model. To validate the method, the Changbai Mountain volcano earthquake–collapse–landslide disaster chain was selected as a case study. The risk assessment results showed that the high-and medium-risk zones were predominantly located within a 10 km radius of Tianchi, and that other regions within the study area were mainly associated with very low-to low-risk values. The verified results of the reported method showed that the area of the receiver operating characteristic (ROC) curve was 0.817, which indicates that the method is very effective for earthquake disaster chain risk recognition and assessment.


Author(s):  
Farida Titik Kristanti

Financial Distress is an undesirable condition for a company. To improve, it is necessary to know the factors affecting financial distress. This research aims to find out the determinants of banking financial distress. 41 banks were taken as samples based on the purposive sampling. The survival cox proportional hazard analysis method used found evidence that macro indicators (inflation and economic growth) had a significant effect on the banks' financial distress. This implies that the government as a regulator must maintain the level of growth and inflation that stabilize the economy so that banks can avoid financial distress. As for the banks' management, they have an obligation to support government policies in maintaining growth and inflation. Keywords: bank, financial distress, survival analysis.


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