Results 71 to 80 of about 2,351 (210)

ZCS: A Zeroth Level Classifier System [PDF]

open access: yesEvolutionary Computation, 1994
A basic classifier system, ZCS, is presented that keeps much of Holland's original framework but simplifies it to increase understandability and performance. ZCS's relation to Q-learning is brought out, and their performances compared in environments of two difficulty levels. Extensions to ZCS are proposed for temporary memory, better action selection,
openaire   +1 more source

Comparative assessment of clinical performance and Streptococcus mutans adherence in primary molars restored with Bioflx and Zirconia crowns: A split-mouth pilot study

open access: yesJournal of Indian Society of Pedodontics and Preventive Dentistry
Aim: To evaluate and compare the clinical efficiency and Streptococcus mutans adherence in primary molars restored with Bioflx and Zirconia crowns (ZCs).
Apoorva Goswami   +5 more
doaj   +1 more source

Z‐Scheme Water Splitting Systems Based on Solid‐State Electron Conductors

open access: yesAdvanced Functional Materials, Volume 36, Issue 21, 12 March 2026.
This review examines the latest advances in Z‐scheme overall water splitting (OWS) systems for solar hydrogen production. These systems consist of suspended or immobilized hydrogen evolution photocatalysts (HEPs) and oxygen evolution photocatalysts (OEPs).
Chen Gu   +3 more
wiley   +1 more source

FORMATION OF «FALSE ANNUAL RINGS» ON SCALE OF JUVENILE COHO SALMON ONCORHYNCHUS KISUTCH IN LAKE KURSIN (LOWER KAMCHATKA RIVER)

open access: yesИзвестия ТИНРО, 2019
During spring-summer flood (in June-July). transit underyearling of coho salmon, having or having no scales, migrate to Lake Kursin at the lower Kamchatka River, where resident coho salmon never spawn.
V. F. Bugaev, D. P. Pogorelova
doaj   +1 more source

Advances in Selenium‐Based Materials for Supercapacitors: Chemistry, Interaction Mechanisms, and Practical Applications

open access: yesSmall Structures, Volume 7, Issue 3, March 2026.
Selenium‐based materials exhibit unique redox activity, tunable conductivity, and structural versatility, making them promising for advanced supercapacitor applications. Their integration with carbon, polymers, and transition metal compounds enhances electrochemical performance, stability, and energy density.
Murugan Madhubalan   +9 more
wiley   +1 more source

A novel voltage step-down/up ZCS-PWM Zeta converter

open access: yes, 2000
This paper presents an analysis of a novel pulse-width-modulated (PWM) voltage step-down/up Zeta converter, featuring zero-current-switching (ZCS) at the active switches.
Wakabayashi, F. T.   +2 more
core   +1 more source

Highly thermostable and visibly transparent Cu-thin-film planar heaters

open access: yesApplied Surface Science Advances
Transparent heaters (THs) are widely used in applications such as deicing, defogging, and thermal management, requiring high transparency, low sheet resistance and structural durability. This study investigates the design, fabrication, and performance of
Chankyoung Lee, Jaewoo Park, Dooho Choi
doaj   +1 more source

Correcting Errors in the Adsorbed Intermediates of CO2 Electroreduction

open access: yesCarbon Energy, Volume 8, Issue 2, February 2026.
Flying over Jacob's ladder of density functional approximations: chemical accuracy in the DFT‐based modeling of CO2 reduction electrocatalysis can be approached with our simple semiempirical method to deconvolute and correct gas‐phase errors and adsorbed‐phase errors.
Ricardo Urrego‐Ortiz   +5 more
wiley   +1 more source

Robust control design for a ZCS converter [PDF]

open access: yesIEEE 2002 28th Annual Conference of the Industrial Electronics Society. IECON 02, 2003
Resonant converters have a highly nonlinear and time-varying nature. Any change in operating conditions leads to significant changes in system dynamical model so that desired performance and even stability are lost. This situation is mainly due to variation in load and line voltage.
H. Bevrani, Y. Mitani, K. Tsuji
openaire   +1 more source

A Quasi-Resonant ZVZCS Phase-Shifted Full-Bridge Converter with an Active Clamp in the Secondary Side

open access: yesEnergies, 2018
A novel Pulse-Width-Modulation (PWM) quasi-resonant active-clamp phase-shifted full-bridge converter is presented and analyzed in this paper. In the proposed topology, an active-clamp switch and a clamp capacitor that resonates with the leakage ...
Duong Tran, Nam Vu, Woojin Choi
doaj   +1 more source

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