Results 41 to 50 of about 13,389 (210)

Alternative and emergency cellular system based on OpenBTS and SDR

open access: yesRevista Elektrón, 2022
The Global System for Mobile Communications (GSM) has been widely accepted around the world. The implementation of this system for a comunity are expensive because to use high-cost equipment, but thanks to the development of software-defined radio ...
Alian Ernesto Matos Rodríguez   +1 more
doaj   +1 more source

Continuous‐Flow Microfluidic Synthesis Enhances C2+ Selectivity for Cu2O Catalysts

open access: yesAdvanced Science, EarlyView.
Microfluidic devices are used to prepare Cu2O nanoparticles under laminar flow conditions, which exhibit enhanced selectivity in the CO2‐to‐C2+ reaction due to their nanoporosity and high defect concentration. Cu2O prepared using standard solution methods displays decreased CO2‐to‐C2+ selectivity due to the absence of similar properties. Altogether, we
Carlota Casas   +16 more
wiley   +1 more source

Integrasi Wireless Fidelity (WiFi) pada jaringan Universal Mobile Telecommunication System (UMTS)

open access: yesJurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 2012
Universal Mobile Telecommunication System (UMTS) merupakan sistem telekomunikasi generasi ketiga (3G) hasil pengembangan jaringan Global System for Mobile Communication (GSM) yang memiliki laju data paket 2 Mbps untuk perangkat yang diam di tempat, 384 ...
Endah Budi Purnomowati
doaj   +1 more source

Pasta, a Versatile Transcriptomic Clock, Maps the Chemical and Genetic Determinants of Aging and Rejuvenation

open access: yesAdvanced Science, EarlyView.
Pasta is a transcriptomic aging clock built on an age‐shift learning framework and trained on 17 000 samples across 21 datasets. It accurately predicts relative biological age across tissues, platforms, and species, captures stemness‐to‐senescence transitions, and identifies age‐modulatory perturbations.
Jérôme Salignon   +6 more
wiley   +1 more source

Magnetic Water Cleaning of Estrogens via Tight yet Dynamic Binding to Nanoparticles

open access: yesAdvanced Science, EarlyView.
Micropollution is one of the big challenges humanity faces with estrogen hormones being emerging pollutants of concern. Here, a supramolecular design strategy is presented that generates a simple nano‐adsorbent material to magnetically remove low‐concentrated estrogens from water.
Lukas Müller   +25 more
wiley   +1 more source

GSM Interaction Based Real Time Climate Change Monitoring Technique [PDF]

open access: yesKirkuk Journal of Science, 2018
The trend nowadays is towards communication and the way to communicate between the source and destination remotely. This work presents a new technique to communicate among different locations, either automatically or based on notification request.
Sarmad Nozad Mahmood
doaj   +1 more source

Polydopamine‐Wool Textiles for Sustainable Interfacial Solar Vapor Generation

open access: yesAdvanced Science, EarlyView.
A natural wool textile engineered for high solar absorbance and a fast‐wicking structure serves as a highly efficient, single‐layer system for interfacial solar vapor generation (ISVG). This integrated evaporator seamlessly couples rapid water transport with continuous evaporation. Ultimately, this sustainable photothermal design offers a scalable, eco‐
Kyuin Park   +6 more
wiley   +1 more source

Upscaling Sodium‐Ion Battery Cells: From Aqueous Processing to Performance Assessment of Hard Carbon|Prussian White Pouch Cells

open access: yesAdvanced Energy Materials, EarlyView.
This study investigates the feasibility of scaling up Prussian White (PW)‐based cathode manufacturing at a pilot scale. Through careful PW dehydration combined with optimized aqueous processing, we report the stepwise development of industrially relevant 1 Ah pouch cells and evaluate their performance under various conditions.
Faduma M. Maddar   +7 more
wiley   +1 more source

A Wireless Safety System for Detecting Gas Leakage in Air Conditioner [PDF]

open access: yesE3S Web of Conferences
— In this paper, we’ll keep an eye on the air conditioner’s gas leaking. Frequently, a minor gas leak can cause a gas concentration to grow up explosively over time.
Susaritha M.   +3 more
doaj   +1 more source

Climate change and perennial crop production: Evidence of yield impact and adaptation in California

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Perennial crops are economically important. They contribute to food security, providing essential nutrients that are often lacking in annual crops, and provide additional environmental benefits compared with annual crops. Despite their importance, empirical research on the impacts of climate change and adaptation on perennial crops remains ...
Yuanyuan Wen   +2 more
wiley   +1 more source

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