Results 111 to 120 of about 652 (179)

Konflik pengambilan tanah Orang Asli: kajian kes di Johor dan Selangor [PDF]

open access: yes, 2015
Orang Asli merupakan golongan minoriti yang terdapat di Semenanjung Malaysia. Sistem Torrens yang diamalkan oleh Malaysia melalui Kanun Tanah Negara 1965 hanya memberi kepentingan terhadap tanah yang didaftarkan di Pejabat Pendaftaran Tanah, manakala ...
Aminudin, N.   +5 more
core   +1 more source

A Low‐Cost and Compact High‐Frequency Gallium Nitride Gradient Power Amplifier for Low‐Field MRI

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To reduce the upfront cost of small, low‐field MRI systems, while expanding the capabilities of their gradient systems. Methods A gradient power amplifier was designed to leverage the lowering cost of Gallium Nitride (GaN) power transistors and high speed logic, to achieve high efficiency and responsiveness for driving gradient coils ...
N. Reid Bolding   +7 more
wiley   +1 more source

Characterization of the Advanced Stirling Radioisotope Generator EU2 [PDF]

open access: yes
Significant progress was made developing the Advanced Stirling Radioisotope Generator (ASRG), a 140-watt radioisotope power system. While the ASRG flight development project has ended, the hardware that was designed and built under the project is ...
Lewandowski, Edward J.   +2 more
core   +1 more source

Voltage convertors for microprocessor devices [PDF]

open access: yes, 2009
Úkolem této bakalářské práce je provést přehled měničů DC/DC, vhodných pro napájení malých mikroprocesorových zařízení s LCD displejem. Jako vstupní zdroj napětí je 9V baterie nebo dvě tužkové baterie(3V).
Kus, Václav
core  

ANN‐Based Alternative Controllers for Three‐Phase Four‐Wire Grid‐Connected NPC Inverters

open access: yesIET Electric Power Applications
The synchronously rotating reference frame (SRRF)‐based proportional‐integral (PI) control technique has been though studied in many different inverter applications, a well‐designed and clearly presented application of this technique for the three‐phase,
Yunus Emre Yağan
doaj   +1 more source

Characterization of the Advanced Stirling Radioisotope Generator Engineering Unit 2 [PDF]

open access: yes
Significant progress was made developing the Advanced Stirling Radioisotope Generator (ASRG) 140-W radioisotope power system. While the ASRG flight development project has ended, the hardware that was designed and built under the project is continuing to
Lewandowski, Edward J.   +2 more
core   +1 more source

Detailed quantitative comparison of half-bridge modular multilevel converter modelling methods [PDF]

open access: yes, 2018
This paper presents a detailed comparison of different modelling methods of the half-bridge modular multilevel converter (HB-MMC), namely, switching function, Thevenin equivalent and averaged, considering both MMC implementations (large and reduced ...
Adam, G.P.   +6 more
core  

Magnetic Amplifiers for Voltage Regulation Applications [PDF]

open access: yes, 2015
The purpose of this thesis is to present research on magnetic amplifiers and to discuss how magnetic amplifiers are useful in voltage regulation applications.
O\u27Grady, Casey Morgan
core   +1 more source

Developments for the high frequency power transformer design and implementation [PDF]

open access: yes, 2003
The thesis considers design and manufacturing of ferrite based high frequency power transformers. The primary aim of the work was to study core and winding losses and in particular thermal modeling of high frequency power transformers and to determine ...
Sippola, Mika
core  

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