Results 71 to 80 of about 4,639 (235)

A New Transformer‐Less Buck‐Boost Converter With Reliability Assessment Using the Improved Markov Model

Engineering Reports, Volume 7, Issue 3, March 2025.
The converter has continuous input current, cubic gain, reduced components, and a simple structure. The converter's 200 W hardware prototype verifies the converter's efficiency of 95.20% while it delivers 100 W output power, making it feasible for low‐ to medium‐power applications.
Ifham H. Malick, Mohammad Zaid, Javed Ahmad, Chang‐Hua Lin, Marwan Ahmed Abdullah Alasali   +4 more
wiley   +1 more source

Replication pauses at mTTF binding sites.

, 2013
A. Schematic map of D. melanogaster mtDNA with positions of probes, mTTF binding sites (bs1, bs2), gene clusters (bold), tRNA genes (open circles), non-coding region (NCR, grey) origin and direction of replication (open arrow) and restriction ...
Priit Jõers (105428), Mikael Parhiala (461075), Ian J. Holt (362575), Atsushi Fukuoh (461074), Howard T. Jacobs (24727), Samantha C. Lewis (461073), Simo Ellilä (461076)   +6 more
core   +1 more source

Field and Laboratory Evaluation of Reliability in a Novel Cone Deployment System for Safer Highway Operations

International Islamic University Malaysia Engineering Journal
This study evaluates the reliability and maintainability of the Cone Collecting and Laying (C2L) machine, developed to enhance safety and efficiency in highway maintenance operations by automating the deployment of traffic cones.
Azilah Ismail, Mohd Azli Salim, Nor Azmmi Masripan, Mohd Zaid Akop, Siti Wardatulaina Mohd Yusof, Chonlatee Photong, Alan Watson, Mohammed Hussin A. Al-Mola   +7 more
doaj   +1 more source

Reliability Assessment of an Improved Single‐Input Switched‐Capacitor Boost 7/9‐Level Inverter Suitable for Renewable Energies

Engineering Reports, Volume 7, Issue 1, January 2025.
This paper proposes an improved multilevel inverter, which can be well‐applied in renewable–energy based microgrids to feed the AC loads. The proposed inverter profits from the following advantages: Requires only single DC input source. It can provide 7 or 9 voltage levels at the output.
Armin Ghelichi, Kazem Varesi, Milad Khoubrooy Eslamloo   +2 more
wiley   +1 more source

具有高量子效率、低暗电流、高可靠性的平面InGaAs　PIN光电二极管

Guangtongxin yanjiu, 1994
本文详细讨论了量子效率和响应时间两个重要参数与器件结构参数的关系，为器件设计提供了依据，并提出了器件的设计方案。根据设计方案研制出的平面ＩｎＧａＡｓＰＩＮ光电二极管，量子效率高达９０％以上，暗电流为１００ｐＡ。在－１０Ｖ偏置下，１８０°Ｃ时ＭＴＴＦ大于３０００ｈ，２３０°Ｃ时ＭＴＴＦ为５００ｈ。
李保根, 徐之韬, 赵先明
doaj  

Assessing the Bridge Structure’s System Reliability Utilizing the Generalized Unit Half Logistic Geometric Distribution

Mathematics
Reliability is now widely recognized across various industries, including manufacturing. This study investigates a system composed of five components, one of which is a bridge network.
Ahlam H. Tolba, Osama Abdulaziz Alamri, Hanan Baaqeel   +2 more
doaj   +1 more source

On Power Electronic Converter's Architecture and Control for Overtopping Breakwater for Wave Energy Conversion

IET Power Electronics, Volume 18, Issue 1, January/December 2025.
Power electronic converter's architecture and control for overtopping breakwater for wave energy conversion (OBREC) an innovative maximum power point tracking strategy. The whole converter's control design process is preliminarily tested utilizing the PIL tool implemented in the Matlab environment.
Luigi Rubino, Roberto Langella
wiley   +1 more source

Analisis Keandalan Mesin Screw Press dengan Metode MTTF

, 2023
Keandalan adalah suatu disiplin ilmu untuk menerapkan ilmiah pada komponen mesin dan produk. Keandalan pada mesin dapat mempengaruhi produktivitas kinerja pada mesin. PT. X adalah perusahaan pengolahan tandan buah segar (TBS) menjadi CPO dan PKO.
Rizali, Muhammad, Tumanggor, Agustina Hotma Uli, Setyawan, Agus, Tambun, Madschen Sia Mei Ol Siska Selvija   +3 more
core  

Reliability and Maintainability Evaluation of MVDC Submodule Test Evaluation System by Fault-Tree Analysis and Critical Maintenance Time Estimation

IEEE Access
This paper proposes a new RAM analysis method to evaluate a submodule test system’s Reliability, Availability, and Maintainability for MVDC in the early design stage.
Jae-Hun Cha, Sang-Hyeok Lee, Sung-Geun Song, Feel-Soon Kang   +3 more
doaj   +1 more source

Systematic Routine for Setting Confidence Levels for Mean Time to Failure (MTTF) [PDF]

, 2014
There are circumstances where an item is intentionally tested to destruction.  The purpose of this technique is to determine the failure rate (λ) of a tested item.
Parsons, Donna, Lee, Jimin, Yearout, Robert   +2 more
core