Results 131 to 140 of about 9,432 (249)

Dynamically Tunable Exciton‐Photon Coupling via Multi‐Physics Field in Transition Metal Dichalcogenide Microcavities

Advanced Science, Volume 13, Issue 51, 14 September 2026.
Dynamic microcavities provide reversible control over exciton‐photon coupling in two‐dimensional TMDs through piezoelectric, electrical, thermal, and all‐optical tuning. By reshaping detuning, Rabi splitting, and polariton composition, these strategies enable adaptable polaritonic functions, including optical switching, polariton lasing, and ...
Jingwen Zhang, Wenqi Qian, Haiyi Liu, Guangyi Tao, Hai Liu, Yifan Zhang, Pengfei Qi, Zheyu Fang   +7 more
wiley   +1 more source

Orçamento Brasil: LDO [Economia documentários]

, 2009
Educação Superior::Ciências Sociais Aplicadas::EconomiaEducação Superior::Ciências Humanas::Ciência PolíticaApresenta o episódio do programa sobre LDO, lei de diretrizes orçamentárias. O vídeo primeiramente traz a importância do planejamento do orçamento
TV Câmara
core  

Phytotoxic Effects of Ethanolic Extracts of Magonia pubescens A.St.‐Hil. (Sapindaceae) on the Germination of Emilia sonchifolia (L.) DC. Seeds

Chemistry &Biodiversity, Volume 23, Issue 9, September 2026.
Ethanolic extracts from Magonia pubescens exhibit concentration‐dependent allelopathic activity against Emilia sonchifolia. Leaf extracts strongly inhibit seed germination and seedling growth, surpassing glyphosate under the tested conditions, whereas intermediate concentrations stimulate germination, indicating hormesis.
José Jonas Ferreira Viturino, Joice Barbosa do Nascimento, Debora Odilia Duarte Leite, Maria Eloyse de Melo Sousa, Jociany Carlos Caetano, Francisca Adriana Gomes dos Santos, Maria Arlene Pessoa da Silva, José Galberto Martins da Costa, Fabíola Fernandes Galvão Rodrigues, Raimundo Nonato Pereira Teixeira   +9 more
wiley   +1 more source

From Surface Steps to Rational Strategies: A Critical Review of Catalyst Design for Carbon Dioxide Dry Reforming of Methane

ChemCatChem, Volume 18, Issue 17, 14 September 2026.
A comprehensive overview of dry reforming of methane (DRM), linking reaction mechanisms with catalyst deactivation and rational catalyst design. Strategies based on active‐site engineering, support engineering, and operando mechanistic understanding provide a roadmap for developing durable, cost‐effective catalysts for industrial DRM.
Zihao Teng, Lizhuo Wang, Jun Huang
wiley   +1 more source

Study of low-noise design techniques for LDO voltage regulators [PDF]

, 2015
Teoria del rumore elettronico e principali fonti di rumore nei dispositivi integrati. Studio della fattibilità  e progettazione di un regolatore di tensione LDO integrato a basso rumore.
Oripoli, Luca
core  

A 40.68‐MHz Active Rectifier Using PLL and PWM Control of DC‐DC Converter for ON/OFF Delay Compensation

International Journal of Circuit Theory and Applications, Volume 54, Issue 9, Page 4469-4481, September 2026.
A ramp‐based phase‐locked loop (RPLL) active rectifier operating at 40.68 MHz compensates switching delay variations to improve phase alignment. The proposed architecture achieves 90.3% peak power conversion efficiency and 98.0% voltage conversion ratio for high‐frequency wireless power transfer in implantable medical devices.
Woorim Lee, Sungmin Shin, Seongbin Kwon, Geonwoo Baek, Jongyeop Kim, Franklin Bien   +5 more
wiley   +1 more source

Computationally Driven Advances in Cu‐CNT On‐Chip Interconnect Materials: From First Principles to Machine Learning

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 5, September 2026.
A multiscale framework integrating electronic, mechanical, and thermal analysis with machine learning to optimize carbon nanotube interconnects. As the component dimensions in integrated circuits shrink to extreme scales, the complexity of interconnect systems is increasing significantly, necessitating an urgent and comprehensive upgrade of ...
Changhong Zhang, Jie Liang, Yi Li, Zhenyu Wang, Haoyuan Li, Zhen Yuan, Jiuren Zhou, Rongmei Chen, Wensheng Zhao, Lei Zhang, Hanshen Xin, Jianhua Zhang   +11 more
wiley   +1 more source

Ultra Low Power Cap-Less LDO with Fast Startup

The Low Dropout Regulator (LDO) forms the key component of any power management circuit to provide clean low noise supply to the analog circuit. A low power cap-less LDO has been designed which provide high regulation, low stand-by power consumption and ...
Mache, Parth
core  

Riverine nitrate and nitrification cannot be the only sources for nitrate assimilation in the Amazon River Plume margins

Limnology and Oceanography Letters, Volume 11, Issue 5, September 2026.
Abstract The Northern Amazon River Plume plays a crucial role in carbon sequestration and nitrogen cycling. This study quantified NO3− budgets along the plume during a period of high discharge, revealing NO3− uptake rates in excess of inputs from riverine sources and nitrification beyond 5°N.
Noémie Choisnard, Ajit Subramaniam, Joseph P. Montoya, Jacqueline Umbricht, Maren Voss   +4 more
wiley   +1 more source

Design of Voltage LDO Regulator in CMOS Technology

Tato práce je zaměřena na obecný návrh napěťového regulátoru s nízkým poklesem napětí (LDO) a na návrh konkrétního LDO regulátoru, který bude splňovat zadané parametry.
Čermák Miroslav
core