Results 91 to 100 of about 1,786,070 (326)

Safe or Unsafe? A Street-Level Analysis of the (Mis)Match Between Perceived and Objective Safety in Chaoyang District, Beijing

ISPRS International Journal of Geo-Information
Objective crime risk and perceived safety constitute distinct yet interrelated dimensions of urban security, whose spatial discrepancies may lead to misaligned policy interventions.
Haishuo Gu, Jinguang Sui, Peng Chen, Miaoxuan Shan, Xinyu Hou   +4 more
doaj   +1 more source

On the security of software-defined next-generation cellular networks [PDF]

, 2016
In the recent years, mobile cellular networks are ndergoing fundamental changes and many established concepts are being revisited. Future 5G network architectures will be designed to employ a wide range of new and emerging technologies such as Software ...
Alzahrani, Bander, Logothetis, Michael, Moscholios, Ioannis, Vassilakis, Vassilios   +3 more
core  

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

Resource allocation for spectrum-leasing based CRN with delay-sensitive traffic

EURASIP Journal on Wireless Communications and Networking, 2017
In this paper, cooperative resource allocation strategies are characterized for a spectrum-leasing based cognitive radio network (CRN), where the primary system leases the licensed band to the secondary system for a fraction of time in exchange for the ...
Yanbo Ma, Xiao Yin, Xiao Yang, Qiang Liu
doaj   +1 more source

AODVSEC: A Novel Approach to Secure Ad Hoc on-Demand Distance Vector (AODV) Routing Protocol from Insider Attacks in MANETs

, 2012
Mobile Ad hoc Network (MANET) is a collection of mobile nodes that can communicate with each other using multihop wireless links without requiring any fixed based-station infrastructure and centralized management.
Aggarwal, Akshai, Chaubey, Nirbhay, Gandhi, Savita, Sadhwani, Madhvi, Shah, Pathik   +4 more
core   +1 more source

All‐in‐One Analog AI Hardware: On‐Chip Training and Inference with Conductive‐Metal‐Oxide/HfOx ReRAM Devices

Advanced Functional Materials, EarlyView.
An all‐in‐one analog AI accelerator is presented, enabling on‐chip training, weight retention, and long‐term inference acceleration. It leverages a BEOL‐integrated CMO/HfOx ReRAM array with low‐voltage operation (<1.5 V), multi‐bit capability over 32 states, low programming noise (10 nS), and near‐ideal weight transfer.
Donato Francesco Falcone, Victoria Clerico, Wooseok Choi, Tommaso Stecconi, Folkert Horst, Laura Bégon‐Lours, Matteo Galetta, Antonio La Porta, Nikhil Garg, Fabien Alibart, Bert Jan Offrein, Valeria Bragaglia   +11 more
wiley   +1 more source

IPv6-Based Architecture of Community Medical Internet of Things

IEEE Access, 2018
The effective integration of Community Medical Internet of Things (CMIoT) and the core technology IPv6 about the next generation of Internet will create a new pattern for the medical field.
Chao Liu, Fulong Chen, Chuanxin Zhao, Taochun Wang, Cheng Zhang, Ziyang Zhang   +5 more
doaj   +1 more source

Directed Security Policies: A Stateful Network Implementation

, 2014
Large systems are commonly internetworked. A security policy describes the communication relationship between the networked entities. The security policy defines rules, for example that A can connect to B, which results in a directed graph. However, this
Carle, Georg, Diekmann, Cornelius, Hupel, Lars   +2 more
core   +2 more sources

Exploiting the Functionality of Cerium Oxide‐Modified Carbon Nanohorns Catalysts Toward Enhanced CO2 Reduction Performance

Advanced Functional Materials, EarlyView.
A cerium oxide‐carbon nanohybrid catalyst is synthesized via two distinct routes and is integrated into H‐type cells and gas diffusion layers (GDLs) to enhance electrochemical performance. Structural variations significantly affect performance, with the solvothermal sample exhibiting higher current densities.
Alessia Pollice, Michele Cacioppo, Miriam Marchi, Miriam Moro, Francesco Paolucci, Marcella Bonchio, Maurizio Prato, Giovanni Valenti, Michele Melchionna, Paolo Fornasiero   +9 more
wiley   +1 more source

A Study on Machine Learning Approaches for Enhanced Quality of Service and Security in Computer Networks Applications

, 2023
Dr. K. Venkata Rao, Mrs. Sushmitha Suresh   +1 more
openalex   +1 more source