5篇
您的检索式：作者名="Rui Fonseca"
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Idiopathic sudden sensorineural hearing loss:Effectiveness of salvage treatment with low-dose intratympanic dexamethasone显示文摘Objectives:To evaluate hearing outcome of salvage treatment with intratympanic steroids(ITS)in idiopathic sudden sensorineural hearing loss(ISSNHL)refractory to initial systemic steroid(SS)therapy.Material and methods:A retrospective medical chart review was conducted on 54 consecutive patients with ISSNHL refractory to SS.Salvage treatment with a low dose intratympanic dexamethasone(4 mg/ml)was offered after one week of primary treatment.Patients were divided into two groups:25 patients accepted ITS(treatment group)and 29 patients did not undergo additional treatment(control group).A pure tone average(PTA)gain of at least 10 dB was considered hearing improvement.Results:Hearing improvement rate was higher in ITS group compared to control group(40%vs.13.8%,p=0.035).A mean PTA improvement of 8.6±9.8 dB was observed in the ITS group and,whereas the control group had an average hearing gain of 0.7±2 dB(p<0.001).Audiometric analysis revealed a significant hearing gain in ITS group at all tested frequencies compared to control group(p<0.05).Analysis of the selected variables,identified intratympanic steroid treatment as the only independent prognostic factor for hearing improvement(OR=4.2,95%CI:1.1e15.7;p=0.04).Conclusion:Intratympanic low dose dexamethasone is effective in patients with incomplete hearing recovery after primary systemic steroid treatment. | Pedro Salvador Francisco Moreira da Silva Rui Fonseca | 2021 | Journal of Otology2021，16，1： | 3 |
| 2 | Fatigue Strength Evaluation of Resin-Injected Bolted Connections Using Statistical Analysis显示文摘在对老旧的螺栓和铆接金属桥进行修补和加固时可以使用不同的方案。由于铆接链接技术目前并不常用,连接它需要特定的设备和熟练的工人。另一种解决方案是使用焊接。但是,老旧钢材的可焊性较差。螺栓是一种非常可行的替代解决方案,并且常用于修复旧金属桥。装配螺栓的解决方案成本高昂,另一种方法是使用树脂灌注式螺栓。带有预紧力的树脂灌注式老旧螺栓连接的受力性能已经用准静态和蠕变试验进行了研究,然而,关于这些连接节点的滑移和疲劳行为的文献很少。本文概述了几位研究者的实验项目,旨在评估单侧受剪和双侧受剪的树脂灌注式螺栓连接的疲劳行为。对有预紧力的标准螺栓和有预紧力的树脂灌注式螺栓的连接节点的实验数据进行比较分析,显示后者的疲劳强度较低。但欧洲规范3(EC3)对树脂灌注式螺栓和标准螺栓的连接节点提出的疲劳强度曲线大致相同,这应得到足够的重视。此外,本研究还展示了使用黏结螺栓连接的可行性研究。最后的研究是用高强度低合金结构钢板和用于金属黏结的丙烯酸结构黏结剂进行的。针对两个实际工程案例,使用线性化边界及Castillo和Fernández-Canteli模型对疲劳实验数据进行统计分析。最终提出疲劳设计曲线,并与欧洲和北美规范中的几个设计建议进行比较。 | Jose Antonio Fonseca de Oliveira Correia Bruno Alexandre Silva Pedrosa Patricia Cordeiro Raposo Abilio Manuel Pinho De Jesus Helena Maria dos Santos Gervisio Grzegorz Stanislaw Lesiukc Carlos Alberto da Silva Rebelo Rui Artur Bartolo Calcada Luis Alberto Proenca Simoes da Silva | 2017 | Engineering2017，3，6： | 1 |
| 3 | Treatment of a sanitary landfill leachate using combined solar photo-Fenton and biological immobilized biomass reactor at a pilot scale显示文摘 | Vítor J.P. Vilar Elisangela M.R. Rocha Francisco S. Mota Amélia Fonseca Isabel Saraiva Rui A.R. Boaventura | 2011 | Water Research2011，，8： | 1 |
| 4 | In vitro differentiation of male mouse embryonic stem cells into both presumptive sperm cells and oocytes显示文摘 | Alexandre Kerkis Simone A S Fonseca Rui C Serafim | | 0，，04： | 1 |
| 5 | Impact of Self-Phase Modulation on In-Band Crosstalk Penalties 显示文摘 | Rui Meleiro Alvaro Buxens Daniel Fonseca | 2008 | IEEE Photonics Technology Letters2008，20，8： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员