scholarly journals Efficiency of an AC Conductive In-Road Charging System for Electric Vehicles-Analysis of Pilot Project Data

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Mikael Hellgren ◽  
Nicholas Honeth
Keyword(s):  
Electric Vehicles ◽  
Pilot Project ◽  
Charging System ◽  
Project Data

Battery-assisted charging system for simultaneous charging of electric vehicles

Energy ◽  
2016 ◽  
Vol 100 ◽  
pp. 82-90 ◽  
Author(s):  
Muhammad Aziz ◽  
Takuya Oda ◽  
Masakazu Ito
Keyword(s):  
Electric Vehicles ◽  
Charging System

scholarly journals Birth companionship in a government health system: a pilot study in Kigoma, Tanzania

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Paul Chaote ◽  
Nguke Mwakatundu ◽  
Sunday Dominico ◽  
Alex Mputa ◽  
Agnes Mbanza ◽  
...  
Keyword(s):  
Low Income ◽  
Pilot Project ◽  
Low Income Countries ◽  
Respectful Maternity Care ◽  
Health Providers ◽  
Structured Interviews ◽  
Government Officials ◽  
Government Health ◽  
Project Data ◽  
Birth Companion

Abstract Background Having a companion of choice throughout childbirth is an important component of good quality and respectful maternity care for women and has become standard in many countries. However, there are only a few examples of birth companionship being implemented in government health systems in low-income countries. To learn if birth companionship was feasible, acceptable and led to improved quality of care in these settings, we implemented a pilot project using 9 intervention and 6 comparison sites (all government health facilities) in a rural region of Tanzania. Methods The pilot was developed and implemented in Kigoma, Tanzania between July 2016 and December 2018. Women delivering at intervention sites were given the choice of having a birth companion with them during childbirth. We evaluated the pilot with: (a) project data; (b) focus group discussions; (c) structured and semi-structured interviews; and (d) service statistics. Results More than 80% of women delivering at intervention sites had a birth companion who provided support during childbirth, including comforting women and staying by their side. Most women interviewed at intervention sites were very satisfied with having a companion during childbirth (96–99%). Most women at the intervention sites also reported that the presence of a companion improved their labor, delivery and postpartum experience (82–97%). Health providers also found companions very helpful because they assisted with their workload, alerted the provider about changes in the woman’s status, and provided emotional support to the woman. When comparing intervention and comparison sites, providers at intervention sites were significantly more likely to: respond to women who called for help (p = 0.003), interact in a friendly way (p < 0.001), greet women respectfully (p < 0.001), and try to make them more comfortable (p = 0.003). Higher proportions of women who gave birth at intervention sites reported being “very satisfied” with the care they received (p < 0.001), and that the staff were “very kind” (p < 0.001) and “very encouraging” (p < 0.001). Conclusion Birth companionship was feasible and well accepted by health providers, government officials and most importantly, women who delivered at intervention facilities. The introduction of birth companionship improved women’s experience of birth and the maternity ward environment overall.

Solar powered battery charging scheme for light electric vehicles (LEVs)

2021 ◽  
Vol 22 (1) ◽  
pp. 101-111
Author(s):  
Kamal Singh ◽  
Anjanee Kumar Mishra ◽  
Bhim Singh ◽  
Kuldeep Sahay
Keyword(s):  
Electric Vehicles ◽  
Maximum Power ◽  
Maximum Power Point ◽  
Battery Charging ◽  
Charging System ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Solar Powered ◽  
Power Point ◽  
Conduction Mode

Abstract This work is targeted to design an economical and self-reliant solar-powered battery charging scheme for light electric vehicles (LEV’s). The single-ended primary inductance converter (SEPIC) is utilized to enhance the performance of solar power and battery charging at various solar irradiances. Various unique attributes of a SEPIC converter offer the effective charging arrangement for a self-reliant off-board charging system. Further, the continuous conduction mode (CCM) function of the converter minimizes the elementary stress and keeps to maintain the minimum ripples in solar output parameters. A novel maximum power point tracking (MPPT) approach executed in the designed system requires only the battery current to track the maximum power point (MPP) at various weather situations. Both the simulated and real-time behaviors of the developed scheme are examined utilizing a battery pack of 24 V and 100 Ah ratings. These responses verify the appropriateness of the designed system for an efficient off-board charging system for LEV’s.

scholarly journals A new wireless charging system for electric vehicles using two receiver coils

2021 ◽  
Author(s):  
Naoui Mohamed ◽  
Flah Aymen ◽  
Mohammed Alqarni ◽  
Rania A. Turky ◽  
Basem Alamri ◽  
...  
Keyword(s):  
Electric Vehicles ◽  
Wireless Charging ◽  
Charging System
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