Results 51 to 60 of about 24,558,722 (248)

Ultra high step‐up soft‐switching DC/DC converter using coupled inductor and interleaved technique

IET Power Electronics, 2023
In this paper, a new ultra high step‐up soft‐switching DC/DC converter using coupled inductor and interleaved technique is presented. The primary side of the coupled inductors in up section and down section will be charged by the input power supply.
Mohammad Maalandish, Ebrahim Babaei, Pouya Abolhasani, Meysam Gheisarnejad, Mohammad‐Hassan Khooban   +4 more
doaj   +1 more source

Non-isolated High Step-Up and High Step-Down DC-DC Converters [PDF]

, 2019
Non-isolated high step-up and high step-down DC-DC conversions are highly demanded in many applications, including renewable energy systems, uninterrupted power supplies, data centers, high-end computers, etc.
Zheng, Yifei
core   +1 more source

The Impact of the COVID‐19 Pandemic on Childhood Cancer Survival: A Population‐Based Assessment of Survival Patterns Between 2015 and 2023 in Germany

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Numerous international studies have reported declines in new cancer diagnoses, delayed diagnoses and disruptions in cancer treatment following the implementation of COVID‐19 pandemic public health measures, raising concerns that these effects may ultimately contribute to increased cancer mortality.
Friederike Erdmann, Maike Wellbrock, Javier Louro, Arndt Borkhardt, Martin Schrappe, Claudia Trübenbach, Desiree Grabow, Cécile M. Ronckers, Joachim Schüz   +8 more
wiley   +1 more source

Students on step rail

, 1938
A group of unknown male students posing together on the step rail in front of the entrance to H.
H. Fletcher Brown Vocational High School
core   +2 more sources

Referral Patterns and Diagnostic Timeliness in Pediatric Cancer: A Hospital‐Based Study in Indonesia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Timely diagnosis and treatment are critical for improving survival among children with cancer. In low‐ and middle‐income countries (LMICs), delays are common and may be influenced by fragmented referral pathways and diagnostic limitations.
Nur Melani Sari, Regina Hadi Putri, Fatimah Assyifa, Judith Spijkerman, Gertjan Johannes Kaspers, Susi Susanah   +5 more
wiley   +1 more source

An interleaved high step‐up DC–DC converter based on coupled‐inductor

IET Power Electronics
This paper proposes an interleaved coupled‐inductor high step‐up direct current (DC)–DC converter. This converter uses a coupled inductor (CI), a voltage multiplier (VM) integrated with a regenerative passive lossless clamp circuit to enhance the voltage
Kamran Karimi, Ebrahim Babaei, Mehran Karimi, Darioush Alizadeh, Seyyed Mohammad Javad Mousavi   +4 more
doaj   +1 more source

A Novel Hybrid Cascaded and Stacked Coupled Inductor Boost Converter With Active Clamping Zero-Voltage Switching

IEEE Access
The application of a traditional boost converter requires a wide duty cycle for high boost voltage gain. The wide duty cycle has the problem of a high current peak due to a large input current.
Jing-Yuan Lin, Chuan-Ting Chen, Yi-Feng Lin   +2 more
doaj   +1 more source

Venetoclax‐Based Therapy as a Bridge to Hematopoietic Stem Cell Transplantation in Relapsed or Refractory Pediatric Acute Leukemia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Relapsed and/or refractory (R/R) pediatric acute leukemia carries a dismal prognosis, largely driven by chemoresistance to conventional salvage therapy. The BH3‐mimetic venetoclax, combined with chemotherapy or hypomethylating agents, has demonstrated efficacy in small clinical trials.
Katherine S. Colman, Deborah Meyran, Vajiranee Malalasekera, Heather Weerdenburg, Janine Campbell, Rachel Conyers, Stacie Wang, Hannah Walker, Seong Lin Khaw, Diane Hanna   +9 more
wiley   +1 more source

A Family of Scalable Non-Isolated Interleaved DC-DC Boost Converters With Voltage Multiplier Cells

IEEE Access, 2019
In this paper, a family of non-isolated interleaved high-voltage-gain DC-DC converters is presented. This family can be used in a wide variety of applications, such as in a photovoltaic systems interface to a high voltage DC distribution bus in a ...
Ahmad Alzahrani, Mehdi Ferdowsi, Pourya Shamsi   +2 more
doaj   +1 more source

Analysis and design of SOI MEMS step up voltage converters

, 2013
Energy harvesting systems are becoming an increasingly popular area for research as they present themselves as a clean, renewable source of energy. There are currently some key design issues facing the development of these energy harvesting systems.
Gleeson, Rachel
core   +1 more source