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| 1 | Comparative Analysis of Ti,Ni,and Au Electrodes on Characteristics of TiO_2 Nanofibers for Humidity Sensor Application显示文摘The effect of metal(Ti,Ni,and Au) electrodes on humidity sensing properties of electrospun TiO_2 nanofibers was investigated in this work.The devices were fabricated by evaporating metal contacts on SiO_2 layer thermally grown on silicon substrate.The separation between the electrodes was 90μm for all sensors.The sensors were tested from 40%to 90%relative humidity(RH) by AC electrical characterization at room temperature. When sensors are switched between 40%and 90%RH,the corresponding response and recovery time are 3 s and 5 s for Ti-electrode sensor,4 s and 7 s for Ni-electrode sensor,and 7 s and 13 s for Au-electrode sensor.The hysteresis was 3%,5%and 15%for Ti-,Ni-,and Au-electrode sensor,respectively.The sensitivity of Ti,Ni,and Au-electrode sensors are 7.53 MΩ/%RH,5.29 MΩ/%RH and 4.01 MΩ/%RH respectively at 100 Hz.Therefore Ti-electrode sensor is found to have linear response,fast response and recovery time and higher sensitivity as compared with those of Ni- and Au-electrode sensors.Comparison of humidity sensing properties of sensors with different electrode material may propose a compelling route for designing and optimizing humidity sensors. | S.S.Batool Z.Imran M.Israr Qadir M.Usman H.Jamil M.A Rafiq M.M.Hassan M.Willander | 2013 | Journal of Materials Science & Technology2013，29，5： | 3 |
| 2 | New Exact Solutions of Two Nonlinear Physical Models显示文摘SchamelKorteweg-de Vries (S-KdV ) 方程并且修改 ZakharovKuznetsov 方程在血浆和灰尘血浆产生的丰富的新准确答案被使用扩大印射的方法和符号的计算的可获得性介绍。这些解决方案包括 Jacobi 椭圆形的函数解决方案,夸张函数解决方案,合理解决方案,和周期的波浪解决方案。在限制盒子中,独居的波浪答案被获得,一些已知的答案也被恢复。 | M.M.Hassan | 2010 | Communications in Theoretical Physics2010，，4： | 1 |
| 3 | Avian influenza virus surveillance in migratory birds in Egypt revealed a novel reassortant H6N2 subtype显示文摘Background:Avian influenza viruses(AIVs)have been identified from more than 100 different species of wild birds around the globe.Wild migratory birds can act as potential spreaders for AIVs to domestic birds between different countries.Egypt is situated on important migratory flyways for wild birds between different continents.While much is known about circulation of zoonotic potential H5N1 and H9N2 AIVs in domestic poultry in Egypt,little is known about the pivotal role of migratory birds in the maintenance and transmission of the viruses in Egypt.Methods:Targeted AIV surveillance has been conducted in 2017 in different wetlands areas in Northern and Eastern Egypt.Results:AIV of subtype H5 was detected in two bird species.In addition,a novel reassortant strain of the H6N2 subtype was identified which reveals the continuous risk of new influenza virus(es)introduction into Egypt.This novel virus possesses a reassortant pattern originating from different AIV gene pools.Conclusions:Intervention control strategies should be performed to minimize the possible contact of domestic birds with wild birds to lower the risk of virus transmission at this interface.In addition,constant monitoring of AIVs in migratory birds is essential in the early detection of influenza virus introduction into Egypt. | Ali M.Zanaty Ahmed M.Erfan Wessam H.Mady Fatma Amer Ahmed A.Nour Neveen Rabie Mohamed Samy Abdullah A.Selim Wafaa M.M.Hassan Mahmoud M.Naguib | 2019 | Avian Research2019，10，4： | 1 |
| 4 | A Multi-Factor Authentication-Based Framework for Identity Management in Cloud Applications显示文摘User’s data is considered as a vital asset of several organizations.Migrating data to the cloud computing is not an easy decision for any organization due to the privacy and security concerns.Service providers must ensure that both data and applications that will be stored on the cloud should be protected in a secure environment.The data stored on the public cloud will be vulnerable to outside and inside attacks.This paper provides interactive multi-layer authentication frameworks for securing user identities on the cloud.Different access control policies are applied for verifying users on the cloud.A security mechanism is applied to the cloud application that includes user registration,granting user privileges,and generating user authentication factor.An intrusion detection system is embedded to the security mechanism to detect malicious users.The multi factor authentication,intrusion detection,and access control techniques can be used for ensuring the identity of the user.Finally,encryption techniques are used for protecting the data from being disclosed.Experimental results are carried out to verify the accuracy and efficiency of the proposed frameworks and mechanism.The results recorded high detection rate with low false positive alarms. | Wael Said Elsayed Mostafa M.M.Hassan Ayman Mohamed Mostafa | 2022 | Computers, Materials & Continua2022，，5： | 0 |
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