Results 121 to 130 of about 22,818 (313)

Vacuum Formed Spherical Triboelectric Architecture Overcoming Direction Constraints for 3D‐Omnidirectional Ultrasonic Energy Receiving

Advanced Functional Materials, EarlyView.
First vacuum formed spherical triboelectric converter for 3D‐omnidirectional ultrasonic energy receiving, with configurable DC or pulse outputs for versatile applications. ABSTRACT Ultrasound‐driven triboelectric nanogenerators (UD‐TENGs) have emerged as promising ultrasonic energy converters for underwater and biomedical applications.
Yanqin Huang, Mengjie Qin, Zixuan He, Xu Yang, Wenjie Chen, Siya Zhou, Qiyuan Zhang, Zhangwei Wang, Yicheng Wang, Yonghong Cheng, Daniel M. Mulvihill, Sandy Cochran, Qingshen Jing   +12 more
wiley   +1 more source

Boost converter

, 2007
In this project, we want to implement a theoretical typology of a converter, the Boost converter, which is also named “Step-up converter”. We also want to bring it to the practical area, where we could work and obtain a useful service, particularly our objective is to obtain a power supply for a notebook.
openaire   +1 more source

Spectroscopic Investigation of Polysulfide Redox Evolution in Catholyte Solutions for Potassium–Sulfur Batteries

Advanced Functional Materials, EarlyView.
Potassium–sulfur batteries are investigated using UV–vis spectroscopy to track the evolution of potassium polysulfide species at elevated temperature. The study reveals sulfur radical anions as key intermediates and shows how solvent composition and cell design influence polysulfide stability, redox behavior, and cycling performance, providing insights
Chiara Morini, Dawid Kasprzak, Lincoln Crowe, Cecilia Spedalieri, Johannes Baller, Naiyu Qi, Fariza Kalyk, Gustav Graeber   +7 more
wiley   +1 more source

Engineering Pendant Group Chemistry to Control Hydrophilicity and Oxidative Degradation of Thioketal‐Based Biomaterials

Advanced Functional Materials, EarlyView.
Thioketal (TK) polymers are promising biomaterials due to their selective biodegradation by reactive oxygen species (ROS), but they respond slowly to physiologic doses of ROS. Here, the TK bond's pendant groups are modified to enhance the degradation of TK‐based implants both in vitro and in vivo.
Karina A. Bruce, Dylan W. Marques, Alan J. Fullenkamp, Emma‐Louise Lowell, Rais B. Fataki, Jake D. Ryan, John R. Martin   +6 more
wiley   +1 more source

Bolts connection technique of bamboo in construction work

, 2017
The construction industry is increasingly developing and growing rapidly with more advanced technologies. The world timber demand is increasing at a rapid rate but the timber supply is however depleting. It has been found through research that bamboo can
Sarif, Abd Sukor, Kumil, Jenylex, Ahmad Hakimi Mat Nor, Mohammad Hairi Osman, AbdSukor bin Sarif, Salman Salim, Sanik, Mohd Erwan, Abdullah, Mohd Sufyan, MohdErwan Sanik, Osman, Mohammad Hairi, Jenylex Kumil, Mat Nor, Ahmad Hakimi, MohdSufyan Abdullah, Salim, Salman   +13 more
core   +1 more source

Tailoring Li‐ion Storage and Transport in Two‐Dimensional Conjugated Metal‐Organic Frameworks via Precise Nitrogen Incorporation

Advanced Functional Materials, EarlyView.
Two nitrogen‐doped 2D conjugated metal‐organic frameworks (2D c‐MOFs, namely Cu‐Nx‐OHBA, x = 2 or 4) are synthesized, featuring precise nitrogen incorporation via rational ligand design. The Cu‐Nx‐OHBA 2D c‐MOFs are largely tailorable by varying skeletal nitrogen density, with respect to electrical conductivity, Li‐storage capacitance, and Li‐transport
Xiangyu Li, Shaoze Shi, Fucai Cui, Rashid Iqbal, Pengyu Wang, Tianrui Wu, Jingcheng Hao, Renhao Dong   +7 more
wiley   +1 more source

Boost converter topologies, hybrid boost and new topologies of voltage multiplier in photovoltaic systems

, 2019
Renewable energy generation has experienced lot growth in the last not many years, with close to several billion dollars financing in 2017. Selection of an appropriate converter is one of the challenges since it has an impact on the behavior of the PV ...
Ahmadian Alashti, Morteza, Rakhtala, Seyed Mehdi, Samadi, Mohamadreza   +2 more
core   +1 more source

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

IEEE 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, Alireza Poursalan, Reza Sharifi Shahrivar, Saeed Amini, Mohammadreza Salehi, Lazhar Ben-Brahim   +5 more
doaj   +1 more source

Design and Comparison of Quadratic Boost Converter with Boost Converter

International Journal of Engineering Research and, 2016
null Selva Kumar. R, null Vignesh C. J, null Gayathri Deivanayaki V. P, null Naveena. P   +3 more
openaire   +1 more source

Designed Lewis Acid–Base Passivation for High Performance Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
ABSTRACT Silicon's high cost and long energy payback time remain major barriers to the global expansion of solar power. In contrast, metal–halide perovskites offer abundant, solution‐processable absorbers, and have achieved efficiencies of 25%–30%, positioning them as strong competitors to silicon.
Afna Manaf, Hiba Shahulhameed, Bhabani Sankar Swain, Shengzhong (Frank) Liu, Adel Najar   +4 more
wiley   +1 more source