Results 131 to 140 of about 69,016 (304)

A Non-Isolated Extendable Boost Topology With Continuous Input and Output Currents

open access: yesIEEE Access
This paper presents a new expendable boost DC-DC converter design with continuous input and output currents. The voltage gain and voltage-current stresses on the semiconductors are the same as those in the conventional boost converter.
Hossein Gholizadeh   +5 more
doaj   +1 more source

Discussion of the technology and research in fuel injectors common rail system [PDF]

open access: yes, 2017
Common rail is one of the most important components in a diesel and gasoline direct injection system. It features a high-pressure (100 bar) fuel rail feeding solenoid valves, as opposed to a low-pressure fuel pump feeding unit injectors. Third-generation
Ishak, Izuan Amin   +5 more
core  

Photon Avalanching Nanoparticles: The Next Generation of Upconverting Nanomaterials?

open access: yesAdvanced Functional Materials, EarlyView.
This Perspective outlines the mechanistic foundations that enable photon‐avalanche (PA) behavior in lanthanide nanomaterials and contrasts them with emerging application spaces and forward‐looking design strategies. By bridging threshold engineering, energy‐transfer dynamics, and materials engineering, we provide a coherent roadmap for advancing the ...
Kimoon Lee   +7 more
wiley   +1 more source

Pelaksanaan program kerjasama institusi industri di Politeknik Merlimau Melaka [PDF]

open access: yes, 2013
Kerjasama institusi-industri adalah penting dalam pembangunan sistem pendidikan negara. Penglibatan industri dalam bidang pendidikan khususnya dalam sistem Pendidikan Teknik dan Vokasional (PTV) adalah amat penting bagi menjamin kebolehpasaran para
Mohd Salleh, Mohd Kamarul Afandi
core  

Meniscus Pixel Printing for Contact‐Lens Vision Sensing and Robotic Control

open access: yesAdvanced Functional Materials, EarlyView.
A visual‐sensing contact lens is enabled by meniscus pixel printing (MPP), which rapidly patterns a 200 µm perovskite photodetector pixel in 1 s without masks, vacuum processing, or bulky equipment. A deep‐learning‐based super‐resolution reconstructs sparse on‐lens signals into 80 × 80 high‐resolution visual information, while AI‐driven eye‐tracking ...
Byung‐Hoon Gong   +7 more
wiley   +1 more source

Regulated Ion‐Diffusion Hydrogels for Subtle and Multimodal Temperature‐Strain Sensing in Wound Monitoring

open access: yesAdvanced Functional Materials, EarlyView.
A soft, dual‐channel hydrogel patch enables simultaneous detection of wound temperature and strain by integrating ion‐diffusion‐mediated thermoelectric and resistive sensing. The conformal design maintains stable performance during motion, capturing subtle inflammatory and mechanical changes for continuous wound monitoring.
Yu Fang   +7 more
wiley   +1 more source

A multilevel boost DC-DC converter with MPPT algorithm for the rooftop PV system of the urban railway Nhon - Hanoi Station

open access: yesJournal of Applied Science and Engineering
Photovoltaic generators constantly change their maximum power point (MPP) because solar radiation and temperature at different times of the day are always different.
Tran Hung Cuong, An Thi Hoai Thu Anh
doaj   +1 more source

Single‐ and Dual‐Atom Configurations in Atomically Dispersed Catalysts for Lithium–Sulfur Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Single‐atom and dual‐atom‐based atomically dispersed catalysts (ADCs) effectively address the shuttle effect and sluggish redox kinetics in Li–S batteries. With nearly 100% atomic utilization and tunable coordination environments, ADCs enhance LiPSs adsorption, lower conversion barriers, and accelerate sulfur redox reactions.
Haoyang Xu   +4 more
wiley   +1 more source

A Soft-Switched Boost Converter Based LED Driver With Reduced Input Current Ripple

open access: yesIEEE Access
This paper proposes a soft-switched paralleled boost converter based LED driver for street lighting application. Output of paralleled boost converter (BC) in the form of full-bridge feeds a buck-boost converter (BBC). The outputs of paralleled BC and BBC
Mounika Dasohari   +3 more
doaj   +1 more source

Establishing a Model Precursor System: Over a Decade of Research on Carbon Dots from the Citric Acid‐Urea System

open access: yesAdvanced Functional Materials, EarlyView.
The citric acid/urea (CA‐Urea) precursor system offers a versatile, scalable route to carbon dots with tunable luminescence and multifunctionality. Mechanistic insights into precursor chemistry and reaction parameters have enabled doping, surface modification, and hybridization strategies, yielding CDs for luminescent devices, sensing, catalysis ...
Yupeng Liu   +10 more
wiley   +1 more source

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