As the most commonly used exterior-protecting components for buildings, window glass, due to its typical brittle characteristics, is more prone break under action of blast loads and produce high-speed flying fragments, which can pose a great threat personal safety. This paper studies influence size glasses on their failure characteristics. A simplified numerical simulation-based method evaluati...

Pressure sensitive mounting tapes provide a quick and effective fastening method compared to most mechanical joining techniques. Due to the viscoelastic nature of pressure sensitive adhesives their response to mechanical and climatic stress in terms of durability is different from most structural adhesives. While the feature of compensating differences in thermal expansion of bonded members and...

background: hospitals in iran are not prepared for disasters the aim of this study was to determine the effect of training functional and nonstructural hospital safety to nurses and their intervention on hospital preparedness in psychiatric razi hospital and day hospital in tehran based on hospital safety index (hsi). materials  and  methods:  this  semi-experimental  study  included  nurse  ma...

 Oxyfluoride glass ceramics containing CaF2nano-crystals doped with Y3+ ions were prepared by one-step crystallization of SiO2- Al2O3- CaO- CaF2 glasses at different temperatures. X- ray diffraction (XRD) results have revealed that CaF2 was the only precipitated crystalline phase in glass ceramic samples. According to the XRD results, a glass ceramic was selected as the best sample in order to ...

Abstract Understanding the durability of nuclear glass in vapor phase is essential for evaluating long-term safety glass. This work studies hydration borosilicate and iodine-bearing at 90 °C relative humidity 99%. Hydration kinetics was monitored by analyzing boron iodine released during process. It found that becomes more easily after being added to matrix. The results related release retentio...

Background: The imbalance between job demand and controls is associated with physical and mental disorders. The Work Design Questionnaire (WDQ) is one of the newest tools for macro-ergonomics evaluation of organizations and workplaces. In this research, the reliability and validity of the Persian WDQ (PWDQ) in the evaluation of occupational accident management and safety promotion in Persian-la...

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Hotspots pose a significant long-term reliability challenge in photovoltaic (PV) modules that can have detrimental impact on the efficiency, safety, and financial viability of PV system. This paper aims to evaluate endurance hotspot stress pristine prestressed glass–glass (GG) modules. The accelerated prestressing was conducted for 600 thermal cycles (TC600) represent decades field exposure. GG...