Results 71 to 80 of about 168,691 (324)

Next‐Generation LiS Batteries: Impact of Nanowire‐Based Electrocatalysts

Batteries &Supercaps, EarlyView.
The graphical abstract features the central themes of this review. It highlights the key challenges limiting the practical applications of lithium–sulfur batteries (LSBs) and discusses how nanowire (NW)‐based electrocatalysts help to address these issues.
Tushar Prashant Pandit, Anweshi Dewan, Mariela Gisela Ortiz, Juan M. Pérez, Mihaela Ramona Buga   +4 more
wiley   +1 more source

Performance Evaluation of Path Loss in Mobile Channel for Karada district in Baghdad City [PDF]

Engineering and Technology Journal, 2012
In this work Hata, Lee, Walfisch-Ikegami and Free Space Loss models have been compared with practical path loss based on series of measurements in Karada district in Baghdad for GSM900 downlink band.
Ahmed A. Jaafar, Aied Khalaf Mohammed
doaj   +1 more source

Analysing GSM Insecurity

, 2021
In the 1990s, GSM emerged as a cutting-edge technology that promised improved services, mobility, security, and increase in the revenues of companies through improved, secure communication for business transactions. The practical experience, however, has shown global subscribers and companies that mere technological excellence of GSM has not resulted ...
Donald, Ene, Favour, Osagie Nosa
openaire   +2 more sources

Bis‐Dichlorosilyl Functionalized C4‐Cumulene With Unique Bonding Scenario

Chemistry – A European Journal, EarlyView.
Herein, we report a silylene‐functionalized C4‐cumulene (2) and investigate its bonding scenario employing computational methods such as NBO analysis, AIM, and energy decomposition analysis‐natural orbital for chemical valence (EDA‐NOCV). The EDA‐NOCV analysis showed that compound 2 prefers to possess electron‐sharing covalent sigma and dative covalent
Saroj Kumar Kushvaha, Harsha S. Karnamkkott, Sangita Mondal, Paula A. M. Stark, Selvakumar Arumugam, Prakash Chandra Joshi, Sai Manoj N. V. T. Gorantla, Regine Herbst‐Irmer, Kartik Chandra Mondal, Dietmar Stalke, Herbert W. Roesky   +10 more
wiley   +1 more source

Performance and Statistical Analysis of Stream ciphers in GSM Communications

Journal of Communications Software and Systems, 2020
For a stream cipher to be secure, the keystreamgenerated by it should be uniformly random with parameter 1/2.Statistical tests check whether the given sequence follow a certainprobability distribution.
Nagendar Yerukala, V Kamakshi Prasad, Allam Apparao   +2 more
doaj  

Radio frequency optimization of a Global System for Mobile (GSM) network [PDF]

, 2008
Includes bibliographical ...
Sharma, Bishal
core  

2D Material Decorated ZnO for Screen Printable Wearable Textile‐Based Piezoelectric Nanogenerator

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The project presents a textile‐based piezoelectric nanogenerator (T‐PENG) for sustainable energy harvesting in wearable electronics. Utilizing 2D materials, including MoS2 and screen printable graphene ink, the device achieves enhanced performance. Experimental results and COMSOL simulation validate significant improvement in the output efficiency ...
Iftikhar Ali, Xicai Alex Yue, Benedict R. Gaster, Md Delowar Hussain, Bhaskar Dudem, S. Ravi P. Silva, Carinna Parraman   +6 more
wiley   +1 more source

Energy-Efficient Elderly Fall Detection System Based on Power Reduction and Wireless Power Transfer

Sensors, 2019
Elderly fall detection systems based on wireless body area sensor networks (WBSNs) have increased significantly in medical contexts. The power consumption of such systems is a critical issue influencing the overall practicality of the WBSN.
Sadik Kamel Gharghan, Saif Saad Fakhrulddin, Ali Al-Naji, Javaan Chahl   +3 more
doaj   +1 more source

Synthesis and Investigation of Bonding Scenario in a Bis(silaselenone)

European Journal of Inorganic Chemistry, EarlyView.
Silaselenones, the compounds containing Si=Se bond, are rarely reported in the literature. Silaselenones are the class of compounds that possess Si=Se bond. Herein, we report a bis(silaselenone) and we investigate nature of bonding between Si–Si atoms and Si—Amidinate moieties by employing Natural bond orbital (NBO), Quantum theory of atoms in ...
Saroj Kumar Kushvaha, Harsha S. Karnamkkott, Paula A. M. Stark, Sai Manoj N. V. T. Gorantla, Regine Herbst‐Irmer, Kartik Chandra Mondal, Dietmar Stalke, Herbert W. Roesky   +7 more
wiley   +1 more source

Personal radio use and risk of cancers among police officers in Great Britain: Results from the airwave health monitoring study

International Journal of Cancer, EarlyView.
What's New? Terrestrial trunked radio (TETRA) is the standard digital communication system used by police and other emergency services in Great Britain. During active use, TETRA emits radiofrequency electromagnetic fields, which are potentially carcinogenic in humans.
Chiara Di Gravio, Paul Elliott, David C. Muller   +2 more
wiley   +1 more source