نتایج جستجو برای: modes of transmission
تعداد نتایج: 21188837 فیلتر نتایج به سال:
in this project, 4,4?-methylenebis(3-chloro-2,6-diethyl trimellitimidobenzene) as a diacid, was prepared by the reaction of trimellitic anhydride (tma) with 4,4?-methylenebis(3-chloro-2,6-diethylaniline) (mcdea). the novel poly(amide-imide) (pai) was synthesized from the reaction of 4,4?-methylenebis(3-chloro-2,6-diethyl trimellitimidobenzene) as a diacid with mcdea under green condition using ...
Background: This paper presents a comprehensive theoretical investigation of the anomalous electromagnetic wave propagation and resonances around the trapped modes embedded in graphene dielectric stacks. Results: Expressions for the dispersion relation, the condition of the trapped mode, the transmission coefficient, and the instantaneous field components through the graphene stack are derived....
Awareness and performance of the bakers regarding the prevention of covid-19 in Iranshahr city, 2020
Background & Aim: It is possible for food-related staff to be involved in transmitting covid-19 by their contact such as coughing or sneezing. Therefore, the knowledge of food-related staff about the transmission modes and prevention of covid-19 is very important. This study was conducted with the aim of investigating the awareness and performance of bakers working in Iranshahr city regarding t...
Background and purpose: The outbreak of Coronavirus Disease 2019 (COVID-19) pneumonia is a major threat to global public health because it is very contagious and spreads quickly by human-to-human transmission. This study aimed to investigate the clinical characteristics and outcome of patients infected with COVID-19 in Saveh, Iran. Materials and methods: A descriptive-analytical study was con...
In this article the major genetic disorders and the modes of their transmission is discussed. We have also briefly mentioned the modalities by which many of the genetic diseases can be detected before birth. The genetic counselling is helpful in many ways in order to advise the parents for keeping the fetus or terminating the pregnancy. The physician can reduce the anxiety of the parents, but t...
Background & Objectives: AIDS is a global crisis that seriously threatens humanity. Social and economic problems of this fatal disease are so huge in the world that it is no longer possible to compare it with any pandemic disease. Due to the complications of this disease as well as the occurrence of other diseases and opportunistic infections in AIDS patients, this study aimed to examine the HI...
In this work the synthesization process of nanocrstallite Nd:KTP powders by modified Pechini method was studied. The results of XRD studies indicate that KTP nanocrystallites doped by Nd has orthorhombic phase. The structural and lattice modes of the synthesized nanocrystallite products were investigated by using Micro Raman back scattering and FT-IR transmission spectroscopies. SEM imaging tec...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید