Evaluation of Transformer Leakage Inductance Using Magnetic Image Method

2021 ◽  
pp. 1-1
Author(s):  
Angshuman Sharma ◽  
Jonathan W. Kimball
Keyword(s):  
Image Method ◽  
Magnetic Image ◽  
Leakage Inductance

Electron Microscope Observations of Magnetic and Electric Effects

1970 ◽  
Vol 28 ◽  
pp. 430-431
Author(s):  
John Silcox
Keyword(s):  
Electron Microscope ◽  
Electric Fields ◽  
Magnetic Image ◽  
Magnetic Effects ◽  
Ferromagnetic Films ◽  
Diffraction Contrast ◽  
Microscope Images ◽  
Electric Effects ◽  
Image Detail

Several aspects of magnetic and electric effects in electron microscope images are of interest and will be discussed here. Clearly electrons are deflected by magnetic and electric fields and can give rise to image detail. We will review situations in ferromagnetic films in which magnetic image effects are the predominant ones, others in which the magnetic effects give rise to rather subtle changes in diffraction contrast, cases of contrast at specimen edges due to leakage fields in both ferromagnets and superconductors and some effects due to electric fields in insulators.

PROSES KOMUNIKASI INTERPERSONAL ORANG TUA DENGAN ANAK AUTIS DALAM MEMBENTUK KEMANDIRIAN ANAK

Jurnal Common ◽  
2018 ◽  
Vol 2 (2) ◽  
Author(s):  
Tina Rakhmatin ◽  
Dian Amilia
Keyword(s):  
Interpersonal Communication ◽  
Nonverbal Communication ◽  
Children With Autism ◽  
Verbal Communication ◽  
Communication Process ◽  
Image Method ◽  
Autistic Children ◽  
Normal Children ◽  
Inhibiting Factors ◽  
Parents And Children

Penelitian ini bertujuan untuk mengetahui proses komunikasi interpersonal orang tua kepada anak autis di Kota Bandung. Untuk menjawab dari tujuan penelitian tersebut, peneliti menetapkan sub fokus pada Komunikasi verbal, komunikasi nonverbal, dan faktor penghambat. Penelitian ini menggunakan metode kualitatif dengan studi deskriptif dimana informan yang terlibat dalam penelitian ini berjumlah lima orang yang terdiri dari empat informan kunci sebagai orang tua dan satu informan pendukung psikolog anak sebagai informan pendukung. Hasil penelitian ini menunjukkan bahwa proses komunikasi interpersonal yang dilakukan antara orang tua dengan anak autis tidak seperti melakukan komunikasi dengan anak normal dan sulit untuk melakukan komunikasi agar dapat dipahami oleh anak autis. Komunikasi verbal yang dilakukan dengan autis harus jelas, tegas, singkat dan juga dengan menggunakan metode gambar, serta adanya kata-kata perintah yang diberikan demi kemandirian anak autis. Komunikasi nonverbal dilakukan dengan gerakan-gerakan ketika orang tua memberikan larangan kepada anak dengan menggunakan gerakan jari telunjuk yang mengacung kemudian digoyangkan, mereka akan segera berhenti melakukan hal tersebut dan memahami bahwa hal tersebut dilarang. Faktor penghambat dalam berkomunikasi dengan anak autis yaitu sulitnya melakukan kontak mata, kurangnya respon yang diberikan, kesulitan berbicara yang dialami anak autis, serta gangguan pada bidang sensori. --------------------------------------------------------------------------------- This study aims to determine the parent's interpersonal communication process to autistic children in the city of Bandung. To answer the purpose of the study, the researcher established a sub focus on verbal communication, nonverbal communication, and inhibiting factors. This study uses qualitative methods with descriptive studies where the informants involved in this study amounted to five people consisting of four key informants as parents and one informant supporting child psychologists as supporting informants. The results of this study indicate that the process of interpersonal communication carried out between parents and children with autism is not like communicating with normal children and is difficult to communicate so that it can be understood by children with autism. Verbal communication done with autism must be clear, firm, concise and also by using the image method, as well as the words of the commands given for the independence of autistic children. Nonverbal communication is carried out with movements when parents give a prohibition to children by using the movement of the index finger that is raised and then shaken, they will immediately stop doing that and understand that it is prohibited. Inhibiting factors in communicating with children with autism are difficulty in making eye contact, lack of response given, speech difficulties experienced by autistic children, and disturbances in the sensory field.

scholarly journals Novel High-Efficiency High Step-Up DC–DC Converter with Soft Switching and Low Component Voltage Stress for Photovoltaic System

Processes ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 1112
Author(s):  
Yu-En Wu ◽  
Jyun-Wei Wang
Keyword(s):  
High Voltage ◽  
Output Voltage ◽  
High Efficiency ◽  
Low Voltage ◽  
Leakage Inductance ◽  
Power Switch ◽  
Half Wave Voltage ◽  
Half Wave ◽  
Voltage Stress ◽  
Voltage Doubler

This study developed a novel, high-efficiency, high step-up DC–DC converter for photovoltaic (PV) systems. The converter can step-up the low output voltage of PV modules to the voltage level of the inverter and is used to feed into the grid. The converter can achieve a high step-up voltage through its architecture consisting of a three-winding coupled inductor common iron core on the low-voltage side and a half-wave voltage doubler circuit on the high-voltage side. The leakage inductance energy generated by the coupling inductor during the conversion process can be recovered by the capacitor on the low-voltage side to reduce the voltage surge on the power switch, which gives the power switch of the circuit a soft-switching effect. In addition, the half-wave voltage doubler circuit on the high-voltage side can recover the leakage inductance energy of the tertiary side and increase the output voltage. The advantages of the circuit are low loss, high efficiency, high conversion ratio, and low component voltage stress. Finally, a 500-W high step-up converter was experimentally tested to verify the feasibility and practicability of the proposed architecture. The results revealed that the highest efficiency of the circuit is 98%.

Experimental and Theoretical Analysis of Trans-Z-Source Inverters With Leakage Inductance Effects

2018 ◽  
Vol 65 (2) ◽  
pp. 977-987 ◽  
Author(s):  
Hossein Madadi Kojabadi ◽  
Hossein Fathi Kivi ◽  
Frede Blaabjerg
Keyword(s):  
Theoretical Analysis ◽  
Leakage Inductance
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