نتایج جستجو برای: protective devices
تعداد نتایج: 313133 فیلتر نتایج به سال:
Currently, the need for high performance heaters industrial application is increasing, and repeated wear, rapid temperature change, uneven can cause deteriorating quality reduced productivity. The ceramic heater in this study consists of a substrate, an electrode layer, protective low-melting glass frit was used all layers to allow low-temperature processing. As substrate heater, Si3N4, which t...
This study addresses the individual decontamination of chemical warfare agents (CWA) and other hazardous substances. The individual decontamination applies to contaminated body surfaces, protective clothing and objects immediately after contamination, performed individually or by mutual assistance using prescribed or improvised devices. The article evaluates the importance of individual deconta...
Coordination among protective devices in distribution systems will be affected by adding distributed generators (DGs) to the existing network. That is attributed to the changes in power flow directions and fault currents magnitudes and directions due to the insertion of DG units in the distribution system, which may cause mis-coordination between protection devices. This paper presents an appro...
Background and purpose: Many workers are exposed to workplace hazards. Many occupational diseases are preventable by personal protective devices (PPDs). Though many workers do not use PPDs or their protection by PPDs is not sufficient. This study was designed to assess the quality of PPDs usage among industrial workers. Materials and Methods: In a cross-sectional study, 648 workers from four ma...
Growing concern over the availability of Respiratory protective devices (eg, filtering facepiece Respirators), in the face of the probable extreme demand brought on by a pandemic influenza, has prompted the suggestion that useful life of N95 filtering facepiece Respirator can be extended by the concurrent use of a surgical mask as an outer protective barrier over the Respirator. Personal protec...
background: pain adversely affects cancer patients quality of life . knowing different sources of pain helps physicians and patients to manage it. the aim of this study was investigating physical factors affecting pain in iranian cancer patients. method: this cross-sectional study randomly enrolled cancer patients who were newly admitted to the medical oncology department of cancer institute of...
acute fulminant myocarditis is a life-threatening inflammatory disease of the myocardium characterized by the rapid deterioration of the hemodynamic status of the affected individual. with prompt recognition and appropriate management, complete recovery of ventricular function is likely within a few weeks. we introduce a 28-year-old man with acute fulminant myocarditis, who experienced circulat...
mammea africana sabine (guttiferae) stembark, a common plant, traditionally used to treat various diseases and ailments was evaluated for hepatoprotective potentials against paracetamol- induced liver injury in rats. the hepatoprotective effect of the stembark extract (30-90 mg/kg) was evaluated by the assay of liver function parameters: total and direct bilirubin, serum protein and albumin, to...
background : iud is one of the safest and most widely used reversible methods of contraception. the purpose of this study was to determine iud survival and reasons for early discontinuation in bandar abbas, south of iran. methods: probability of iud continuation rate and factors associated with discontinuation were assessed in a historical cohort study of 400 women records from march 2002 to fe...
ion and evaluation of studies. Each study that met the inclusion criteria was abstracted by two independent reviewers using the standard Community Guide abstraction process. Disagreements between reviewers were resolved by consensus. Community Guide methods were used to assess each study for internal and external validity (Appendix A, available Figure 2. Search yield for evidence included in MM...
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