维普中文期刊产品整合服务
2篇 您的检索式:作者名="Safeer Shah"
    题名 作者 年代 出处 被引量
1High energy storage density with ultra-high efficiency and fast charging-discharging capability of sodium bismuth niobate lead-free ceramics显示文摘Ceramics-based capacitors with excellent energy storage characteristics,fast charging/discharge rate,and high efficiency have received significant attention.In this work,Na0.73Bi0.09NbO3(NBN)ceramics were processed through solid-state sintering route.The investigated ceramics were crystallized in a single perovskite phase.Dense microstructure,with small average grain size(~0.92 mm)is obtained for the investigated ceramics.A high dielectric constant>1000 accompanied by a low dielectric loss was achieved for these ceramics at ambient temperature.A recoverable energy density~0.92 J/cm3 and ultra-high efficiency of 96.33%at 138 kV/cm were obtained at room temperature.Furthermore,a lower discharging time of 0.14 ms was also achieved.This material is a suitable candidate for power pulsed applications.Abdul Manan Maqbool Ur Rehman Atta Ullah Arbab Safeer Ahmad Yaseen Iqbal Ibrahim Qazi Murad Ali Khan Hidayat Ullah Shah Arshad Hussain Wazir 2021Journal of Advanced Dielectrics2021,11,4:0
2It is 2015: What are the best diagnostic and treatment options for Ménière's disease?显示文摘Ménière's disease(MD) is a common cause of recurrent vertigo. Its pathophysiology is still unclear and controversial. The most common histological finding in postmortem temporal bone studies of patients is endolymphatic hydrops(EH). However, not all cases of hydrops are associated with MD and it may represent the end point of various etiologies. The diagnostic criteria for MD have undergone changes during the past few decades. A recent collaboration among specialty societies in United States, Europe and Japan has given rise to a new set of guidelines for the diagnosis and classification of MD. The aim is to develop international consensus criteria for MD that would help improve the quality of data collected from patients. The diagnosis of MD can be difficult in some cases as there is no gold standard for testing. Previous use of audiometric data and electrocochleography are poorly sensitive as screening tools. Recently magnetic resonance imaging as a diagnostic tool for identifying EH has gained popularity in Asia and Europe. Vestibular evoked myogenic potentials are also used but lack specificity. Finally, the treatment for MD has improved with the introduction of intratympanic treatments with steroids and gentamicin as well as less invasive treatment with the Meniett device.Safeer Shah Abel Ignatius Syed Ahsan 2016World Journal of Otorhinolaryngology2016,6,1:0
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费