Results 51 to 60 of about 223,424 (241)

Bidirectional positive buck-boost converter

, 2008
In a positive buck-boost (PBB) converter, inductor current and capacitor voltage can be decoupled which may improve system stability. In fact for a specific level of capacitor voltage, the inductor current can be adjusted at different levels and can be ...
Firuz Zare, Zare, Firuz, Arash A. Boora, zare, F., Ledwich, G., A. Boora, Arash, Boora, Arash A., Ghosh, Arindam, Gerard Ledwich, Arindam Ghosh, Ledwich, Gerard F., Ledwich, Gerard, Boora, A.   +12 more
core   +1 more source

Correcting Apparent Priming Bias Unveils Fertilizer Nitrogen‐Risk Archetypes of Surplus and Depletion Across Asian Rice Systems

Advanced Science, EarlyView.
Correcting the apparent priming effect resolves systematic biases in Asian rice fertilizer nitrogen accounting. Net soil retention drops below 7%, while 48% of fertilizer escapes, inflicting US$98.53 billion in annual reactive‐nitrogen damages. High‐resolution mapping uncovers N‐risk archetypes across 42% of the rice area, delivering a spatially ...
Xiuyun Liu, Siyuan Cai, Longlong Xia, Jagdish K. Ladha, Xiaoyuan Yan, Xu Zhao   +5 more
wiley   +1 more source

Conversor CC-CC buck+boost multinível bidirecional [PDF]

, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-graduação em Engenharia Elétrica, Florianópolis, 2013Este trabalho apresenta uma nova topologia de conversor cc-cc Buck+Boost bidirecional multinível ...
Costa, Levy Ferreira
core  

Safety of Sodium‐Ion Batteries: Evaluation and Perspective from Component Materials to Cells, Modules, and Packs

Advanced Energy Materials, EarlyView.
This review provides a bottom‐up evaluation of sodium‐ion battery safety, linking material degradation mechanisms, cell engineering parameters, and module/pack assembly. It emphasizes that understanding intrinsic material stability and establishing coordinated engineering control across hierarchical levels are vital for preventing degradation coupling ...
Won‐Gwang Lim, Seoa Kim, Erik A. Wu, Darren H. S. Tan, Shawn Peng, Xiaolin Li   +5 more
wiley   +1 more source

Constant current and ripple control of LED driver without electrolytic capacitor

Dianzi Jishu Yingyong, 2018
When the traditional unloaded boost-buck LED driver power supply has a high power factor, it will produce significant low-frequency ripple current. Based on the buck-boost topology, this paper presents an innovative LED drive power technology.
Chen Chunkai, Li Yinlong
doaj   +1 more source

Built‐In Electric Field Regulated Electron Transport Channels of FeP Supported Os for Ampere‐Level Seawater Electrolysis

Advanced Energy Materials, EarlyView.
This work presents an Os/FeP heterostructure catalyst with EMSI and successfully utilizes the BEF to further modulate electron transfer through Os‐P‐Fe channels, proving an effective approach of developing low‐cost electrocatalysts with remarkable HER activity in ampere‐level seawater electrolysis. ABSTRACT Developing cost‐effective and robust hydrogen
Qing Liu, Yukun Zhang, Zili Liu, Yu Wang, Hongdong Li, Weiping Xiao, Wenli Yu, Lingfeng Zhu, Tianyi Ma, Jun Xing, Wei Jin, Liqun Ye, Lei Wang, Zexing Wu   +13 more
wiley   +1 more source

Sustainable Productivity Growth in Agriculture: The Role of Shifts in R&D Investments and Technology

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT The objective of the paper is to evaluate the long‐term prospects of sustainable productivity growth linked to plausible assumptions on public agricultural R&D investments as the key productivity driver. Second, it investigates the role of changing R&D focus from yield maximization to input saving technologies (fertilizers and pesticides). The
Zuzana Smeets Křístková, Michiel van Dijk, Robert M'Barek, Hans van Meijl, Tomas Ratinger   +4 more
wiley   +1 more source

Extended Analysis of Non-Isolated Bidirectional High Gain Converter

Advances in Electrical and Computer Engineering, 2023
This paper focuses on developing a non-isolated bidirectional high gain converter suited for EV charging. This converter has two ports with bidirectional features which functions in both buck and boost operation.
ANJANA, E., RAMAPRABHA, R.
doaj   +1 more source

PERBANDINGAN KINERJA BUCK-BOOST CONVERTER DUAL OUTPUT DENGAN BUCK-BOOST CONVERTER KONVENSIONAL [PDF]

, 2019
Penelitian ini menguraikan tentang perbandingan kinerja simulasi pada buck-boost converter dual output dengan buck-boost converter konvensional. Buck-boost converter adalah rangkaian penaik dan penurun tegangan DC.
Ardhenta, Lunde, Hasanah, Rini Nur, Ananda, Andhika Dwi   +2 more
core   +1 more source

ANALISIS PERBANDINGAN DOUBLE GAIN BUCK-BOOST CONVERTER DENGAN BUCK-BOOST CONVERTER [PDF]

, 2019
Penelitian ini membahas tentang analisis perbandingan kinerja simulasi pada rangkaian double gain buck-boost converter dengan buck-boost converter.
Sitinjak, Wira Raja, Ardhenta, Lunde, Purnomo, Hery   +2 more
core   +1 more source