نتایج جستجو برای: hazard based models
تعداد نتایج: 3588084 فیلتر نتایج به سال:
Bengkulu City is an area in Indonesia that has a high seismic intensity. This very vulnerable to undergo earthquakes. Therefore, there necessity study the hazard assessment this area. paper presents vulnerability based on ground response analysis combined with probabilistic assessment. The soil profiles around are investigated using geophysical survey by microtremor and analysis. motion of soft...
BACKGROUND Regression models for survival data have traditionally been based on the Cox regression model. However, its validity relies heavily on assumption of proportional hazards. Another restriction of the Cox model is insufficiency in dealing with time-varying covariate effects, since the regression coefficients are assumed constant. These weaknesses have generated interest in alternative a...
Single-index models are becoming increasingly popular in many scientific applications as they offer the advantages of flexibility regression modeling well interpretable covariate effects. In context survival analysis, single-index hazards natural extensions Cox proportional models. this paper, we propose a novel estimation procedure for hazard under monotone constraint index. We apply profile l...
An Environmental Risk Assessment (ERA) for nanomaterials (NMs) is outlined in this paper. Contrary to other recent papers on the subject, the main data requirements, models and advancement within each of the four risk assessment domains are described, i.e., in the: (i) materials, (ii) release, fate and exposure, (iii) hazard and (iv) risk characterisation domains. The material, which is obvious...
This paper proposes a discrete-time hazard regression approach based on the relation between hazard rate models and excess over threshold models, which are frequently encountered in extreme value modelling. The proposed duration model employs a exible link function and incorporates the grouped-duration analogue of the wellknown Cox proportional hazards model and the proportional odds model as s...
Release of potentially persistent, bioaccumulative and inherently toxic chemicals into the environment may cause adverse effects to plants animals. Hundreds thousands are manufactured each year experimentally assessing them for these parameters is costly, time consuming requires animal testing. To address concerns there has been a paradigm shift in adoption computational chemistry toxicology me...
This paper presents an assessment of the seismic hazard for the Markazi province. For approch to this aim based on Seismotectonic conditions, regional earthquake dam and seismicity analyses the active faults and potential seismic sources of the region are identified and illustrated in a seismotectonic map. By useing different thechniques such as “Time Normalization” a model of earthquake sourc...
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