Results 61 to 70 of about 20,803 (260)

Switching converters with wide DC conversion range [PDF]

open access: yes, 1991
In dc-to-dc conversion applications that require a large range of input and/or output voltages, conventional PWM converter topologies must operate at extremely low duty ratios, which limits the operation to lower switching frequencies because of the ...
Maksimović, Dragan, Ćuk, Slobodan
core   +1 more source

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

open access: yesAdvanced 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   +5 more
wiley   +1 more source

Dual-Loop Voltage–Current Control of a Fractional-Order Buck-Boost Converter Using a Fractional-Order PIλ Controller

open access: yesFractal and Fractional, 2023
Based on the fact that the inductor and capacitor are of a non-integer order by nature, to provide a more accurate theoretical basis for the optimal control of the converter, the fractional-order model of the Buck-Boost converter in the continuous mode ...
Lingling Xie, Di Wan, Rui Qin
doaj   +1 more source

Tax Policy and Farm Organization

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT The Tax Cuts and Jobs Act (TCJA) introduced substantial changes to the tax code, affecting farms' organizational incentives. This study examines farms' responses to the TCJA along extensive and intensive margins, focusing on organizational and labor expense adjustments.
Tia M. McDonald, Katherine Lacy
wiley   +1 more source

A Buck-Boost Converter Modified to Utilize 600V GaN Power Devices in a PV Application Requiring 1200V Devices

open access: yesAdvances in Electrical and Computer Engineering, 2015
This paper presents a buck-boost converter which is modified to utilize new 600 V gallium nitride (GaN) power semiconductor devices in an application requiring 1200 V devices.
SRDIC, S., DESPOTOVIC, Z.
doaj   +1 more source

A unified analysis of PWM converters in discontinuous modes [PDF]

open access: yes, 1991
Three discontinuous operating modes of PWM (pulsewidth modulated) converters are considered: the discontinuous inductor current mode (DICM), the discontinuous capacitor voltage mode (DCVM), and a previously unidentified mode called the discontinuous ...
Maksimović, Dragan, Ćuk, Slobodan
core   +2 more sources

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

open access: yesApplied 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   +4 more
wiley   +1 more source

Comprehensive analysis and design of a switched‐inductor type low inductance‐requirement DC‐DC buck‐boost converter for low power applications

open access: yesIET Power Electronics, 2023
This paper aims to comprehensively analyze, critically discuss, and provide a step‐by‐step design guideline for a previously proposed Modified Switched‐Inductor type Buck‐Boost (MSIBB) converter which is based on a boost converter. The MSIBB converter is
Hamood‐Ur‐Rehman   +4 more
doaj   +1 more source

Unpacking the Farmland Capitalization Effect of Ethanol Establishment

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT We unpack the impact of expansions in ethanol production—as measured by proximity to newly constructed ethanol plants and capacity expansions—on farmland values using land transaction data from Kansas in combination with modern causal inference techniques.
Gabriel S. Sampson, Jisang Yu
wiley   +1 more source

RANCANG BANGUN CATU DAYA TENAGA SURYA UNTUK PERANGKAT AUDIO MOBIL (SUBJUDUL: SOFTWARE) [PDF]

open access: yes, 2011
Selama ini catu daya audio mobil diperoleh dari batere (accu) pada mobil. Akibat kelebihan beban, batere mobil menjadi drop dan sulit untuk menghidupkan mesin mobil.
mariana, zuan
core  

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