Results 71 to 80 of about 66,903 (234)

Swarm‐Optimized ZnO/CdS/CIGS/GaAs Solar Cell for Enhanced Efficiency and Thermal Resilience

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
This article addresses the problem of optimizing the efficiency and thermal resilience of ZnO/CdS/CIGS solar cells, which are promising but still face challenges in maximizing performance under high‐temperature conditions and concentrated sunlight. The main issue is enhancing the efficiency of these cells while also ensuring that they can withstand the
Habib Ullah Manzoor   +4 more
wiley   +1 more source

Trigonometric words ranking model for spam message classification

open access: yesIET Networks, EarlyView., 2022
Abstract The significant increase in the volume of fake (spam) messages has led to an urgent need to develop and implement a robust anti‐spam method. Several of the current anti‐spam systems depend mainly on the word order of the message in determining the spam message, which results in the system's inability to predict the correct type of message when
Suha Mohammed Hadi   +7 more
wiley   +1 more source

Protective and Collision‐Sensitive Gel‐Skin: Visco‐Elastomeric Polyvinyl Chloride Gel Rapidly Detects Robot Collision by Breaking Electrical Charge Accumulation Stability

open access: yesAdvanced Intelligent Systems, EarlyView.
For safe human–robot collaboration (HRC), a protective and collision‐sensitive robot skin is proposed. The developed robot skin, named Gel‐Skin, is composed of polyvinyl chloride (PVC) gel, which is a functional material with impact absorption capability and tunable piezoresistive characteristics based on electrical charge‐accumulation.
Geonwoo Hwang   +4 more
wiley   +1 more source

Voltage‐Summation‐Based Compute‐in‐Memory Technology with Capacitive Synaptic Devices

open access: yesAdvanced Intelligent Systems, EarlyView.
Compute‐in‐memory (CIM) technologies leveraging capacitive coupling offer significant advantages in energy efficiency and IR‐drop elimination. This work introduces voltage‐summation‐based CIM technology, employing capacitive synaptic devices for matrix–vector multiplication.
Jung Nam Kim   +8 more
wiley   +1 more source

The conundrum of stock versus bond prices

open access: yes, 2003
In a general way, stock and bond prices do not display any significant correlation. Yet, if we concentrate our attention on specific episodes marked by a crash followed by a rebound, then we observe that stock prices have a strong connection with ...
Bertrand M Roehner   +6 more
core   +2 more sources

Ultrathin (<10 nm) Electrochemical Random‐Access Memory that Overcomes the Tradeoff between Robust Weight Update and Speed in Neuromorphic Systems

open access: yesAdvanced Intelligent Systems, EarlyView.
To address the tradeoff between synaptic linearity and operating speed, a Cu ion‐based ultrathin electrochemical random‐access memory is engineered using a 1.2 nm AlOx liner and 5 nm HfOx layer. The device exhibits fast and uniform weight updates under 50 μs pulses, along with long retention and high endurance, paving the way for robust synaptic units ...
Seonuk Jeon   +3 more
wiley   +1 more source

Uncovering ESG Ratings: The (Im)Balance of Aspirational and Performance Features

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Environmental, Social, and Governance (ESG) scores are crucial for evaluating corporate sustainability. However, the undisclosed and complex methodologies used by rating agencies have raised concerns about their reliability and consistency. This study replicates LSEG's ESG scoring methodology using machine learning to shed light on the key ...
Andrea Ferro   +2 more
wiley   +1 more source

ДРОП КАК СОУЧАСТНИК ПРЕСТУПЛЕНИЙ, СОВЕРШЕННЫХ С ИСПОЛЬЗОВАНИЕМ ИНФОРМАЦИОННО-ТЕЛЕКОММУНИКАЦИОННЫХ СЕТЕЙ: ПРОБЛЕМЫ УГОЛОВНО-ПРАВОВОЙ ОЦЕНКИ И ПРАВОПРИМЕНЕНИЯ

open access: yesBulletin of Udmurt University. Series Economics and Law
Научная работа посвящена исследованию правовой природы дропа как соучастника преступления. Проанализированы имеющиеся подходы к пониманию дропа. Сделан вывод о том, что при наличии множества различных трактовок исследуемого термина имеет место проблема их неполного соответствия задачам уголовного права.
openaire   +1 more source

Free space laser telecommunication through fog

open access: yes, 2018
Atmospheric clearness is a key issue for free space optical communications (FSO). We present the first active method to achieve FSO through clouds and fog, using ultrashort high intensity laser filaments.
Kasparian, Jérôme   +4 more
core   +1 more source

Three‐Dimensional Graphene Aerogel Materials for Supercapacitors: Strategies and Mechanisms

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
An overview of this review about synthesis and drying of GAs, modified aerogel materials and applications in various types of supercapacitors. Graphene aerogels (GAs) exhibit exceptional potential in energy storage, particularly for high‐capacity supercapacitors (SCs), owing to their unique three‐dimensional (3D) porous structure, high conductivity ...
Xiaobin Gong   +4 more
wiley   +1 more source

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