Results 111 to 120 of about 160,250 (344)

All-purpose bidirectional four-quadrant controller [PDF]

, 1983
The basic purpose of this paper is to provide some information regarding bidirectional four quadrant resonant power conversion and describe possible applications to aircraft electrical systems.
Hansen, I. G.
core   +1 more source

The cooperative regulation of miR‐221 by APE1 and AUF1 impacts p27Kip1 defining a miR signature relevant for cervical cancer

FEBS Open Bio, EarlyView.
A regulatory axis involving APE1, AUF1, and miR‐221 is proposed. Pri‐miR‐221 is processed by DROSHA and DICER to generate mature miR‐221, which targets p27Kip1 mRNA. APE1 and AUF1 compete for pre‐miR‐221 binding. Reduced APE1/AUF1 levels impair miR‐221 biogenesis, decrease p27Kip1 mRNA degradation, and promote cell cycle progression, chemoresistance ...
Matilde Clarissa Malfatti, Nicolò Gualandi, Gianluca Tell, Giulia Antoniali   +3 more
wiley   +1 more source

Dapagliflozin prevents methylglyoxal‐induced retinal cell death in ARPE‐19 cells

FEBS Open Bio, EarlyView.
Diabetic macular oedema is a diabetes complication of the eye, which may lead to permanent blindness. ARPE‐19 are human retinal cells used to study retinal diseases and potential therapeutics. Methylglyoxal is a compound increased in uncontrolled diabetes due to elevated blood glucose.
Naina Trivedi, Zainab Quraishi, Shima Khezri Azizi Far, Madaleine Ward, Aidan Conway, Reem Abdulredha, Eman Mshari, Yousif A. Shamsaldeen   +7 more
wiley   +1 more source

Modeling and reliability analysis of three phase z-source AC-AC converter

Archives of Electrical Engineering, 2017
This paper presents the small signal modeling using the state space averaging technique and reliability analysis of a three-phase z-source ac-ac converter.
Prasad Hanuman, Maity Tanmoy
doaj   +1 more source

Upgrade of the ultracold neutron source at the pulsed reactor TRIGA Mainz

, 2017
The performance of the upgraded solid deuterium ultracold neutron source at the pulsed reactor TRIGA Mainz is described. The current configuration stage comprises the installation of a He liquefier to run UCN experiments over long-term periods, the use ...
Beck, Marcus, Geppert, Christopher, Heil, Werner, Hild, Nicolas, Kahlenberg, Jan, Karch, Jan, Karpuk, Sergei, Kories, Fabian, Kretschmer, Matthias, Lauss, Bernhard, Reich, Tobias, Ries, Dieter, Ross, Kim Ulrike, Siemensen, Christian, Sobolev, Yuri, Trautmann, Norbert   +15 more
core   +1 more source

Nuclear pore links Fob1‐dependent rDNA damage relocation to lifespan control

FEBS Open Bio, EarlyView.
Damaged rDNA accumulates at a specific perinuclear interface that couples nucleolar escape with nuclear envelope association. Nuclear pores at this site help inhibit Fob1‐induced rDNA instability. This spatial organization of damage handling supports a functional link between nuclear architecture, rDNA stability, and replicative lifespan in yeast.
Yamato Okada, Mina Iwaki, Kyosuke Hagiri, Rei Izumi, Masahiko Harata, Chihiro Horigome   +5 more
wiley   +1 more source

Gradient System Modelling of Matrix Converters with Input and Output Filters [PDF]

, 2003
Due to its complexity, the dynamics of matrix converters are usually neglected in controller design. However, increasing demands on reduced harmonic generation and higher bandwidths makes it necessary to study large-signal dynamics. A unified methodology
Jeltsema, Dimitri,, Klaassens, J. Ben,, Scherpen, Jacquelien M.A.,   +2 more
core   +1 more source

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

FEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn, Barbara Seroka, Ryszard Lazny, Zenon Lotowski, Thore Rohwerder   +4 more
wiley   +1 more source

An Improved Quadratic Boost Converter With Lower Input Current Ripple and Reduced Power Components for Fuel Cell Systems

IEEE Access
This paper presents an improved quadratic boost converter designed to achieve lower input current ripple and reduce the number of power components, specifically for fuel cell systems.
Yuan Zhu, Kazuhiro Ohyama
doaj   +1 more source

Experimentation of Multi-Input Single-Output Z-Source Isolated DC–DC Converter-Fed Grid-Connected Inverter with Sliding Mode Controller [PDF]

, 2023
N. Kanagaraj, M. Ramasamy, M. Vijayakumar, Obaid Aldosari   +3 more
openalex   +1 more source