Results 41 to 50 of about 68,806 (303)

Study of Efficiency Fractal Optical Modulator for insulator material by testing modulation transfer function

مجلة علوم ذي قار, 2019
Chopper is an important component in optical system. It represents a device, which changes the angle between the coordinate and vision lines of the target for the electrical signal. The chopper modulates the optical signal by a frequency dependent on the
Mohammed L. Jabbar, Abbas Shwya Alwan   +1 more
doaj   +4 more sources

A 250 °C Low-Power, Low-Temperature-Drift Offset Chopper-Stabilized Operational Amplifier with an SC Notch Filter for High-Temperature Applications

Applied Sciences
This paper proposes a three-stage op amp based on the SOI (silicon-on-insulator) process, which achieves a low offset voltage and temperature coefficient across a wide temperature range from −40 °C to 250 °C.
Zhong Yang, Jiaqi Li, Jiangduo Fu, Jiayin Song, Qingsong Cai, Shushan Qiao   +5 more
doaj   +1 more source

Pharmacological inhibition of the PERK pathway modulates hepatocellular carcinoma growth and immune signaling

FEBS Open Bio, EarlyView.
Pharmacological inhibition of PERK in a DEN‐induced mouse model of liver cancer does not reduce tumor burden but alters cellular stress signaling. Despite blocking PERK activity, downstream stress responses, including CHOP expression, remain active, suggesting compensatory mechanisms within the unfolded protein response that may influence tumor ...
Ada Lerma‐Clavero, Maria Kopsida, Nathalie Arendt, Hans Lennernäs, Markus Sjöblom, Femke Heindryckx   +5 more
wiley   +1 more source

Chopper-Stabilized Instrumentation Amplifier with Automatic Frequency Tuning Loop

Micromachines, 2018
A variable-gain chopper-stabilized instrumentation amplifier (chopper IA), which employs a low pass filter (LPF) to attenuate the up-converted noise at the chopping frequency, is presented. The circuit is designed and fabricated with Taiwan Semiconductor
Chen-Mao Wu, Hsiao-Chin Chen, Ming-Yu Yen, San-Ching Yang   +3 more
doaj   +1 more source

Progress with PXIE MEBT Chopper [PDF]

, 2013
A capability to provide a large variety of bunch patterns is crucial for the concept of the Project X serving MW-range beam to several experiments simultaneously.
/Fermilab, /SLAC, Chen, A., Lebedev, V., Pasquinelli, R, Peterson, D., Saewert, G., Shemyakin, A., Sun, D., Tang, T., Wendt, M.   +10 more
core   +2 more sources

The High-Flux Backscattering Spectrometer at the NIST Center for Neutron Research

, 2002
We describe the design and current performance of the high-flux backscattering spectrometer located at the NIST Center for Neutron Research. The design incorporates several state-of-the-art neutron optical devices to achieve the highest flux on sample ...
A. Meyer, Alefeld B., Anderson I. S., Basile G., Bauer G. S., Bottom V. E., Cook J. C., Copley J. R. D., D. A. Neumann, Fillaux F., Maier-Leibnitz H., Majkrzak C. F., P. M. Gehring, R. M. Dimeo, Shapiro S. M., Sivia D. S., Stoica A. D., Williams R. E.   +17 more
core   +1 more source

Onasemnogene Abeparvovec in Type I Spinal Muscular Atrophy: 24‐Month Follow‐Up From the Italian Registry

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Onasemnogene abeparvovec (OA) is an AAV9‐based gene therapy for spinal muscular atrophy type I (SMA I). Real‐world outcomes show increased response variability compared to clinical trials, and follow‐up data beyond 12–18 months are limited.
Marika Pane, Giorgia Coratti, Chiara Cutrì, Antonio Varone, Riccardo Masson, Adele D'Amico, Valeria Sansone, Sonia Messina, Federica Ricci, Chiara Ticci, Claudio Bruno, Caterina Agosto, Francesca Benedetti, Antonella Pini, Sabrina Siliquini, Massimiliano Filosto, Alberto Zambon, Ilaria Bitetti, Maria Rosaria Manna, Claudia Dosi, Riccardo Zanin, Stefano Parravicini, Roberto De Sanctis, Giulia Stanca, Michela Catteruccia, Michele Tosi, Irene Mizzoni, Emilio Albamonte, Valentina Franchino, Maria Sframeli, Ilaria Cavallina, Elena Procopio, Michele Sacchini, Simone Morando, Noemi Brolatti, Federica Trucco, Gaia Scarpini, Elena Briganti, Beatrice Berti, Concetta Palermo, Daniela Leone, Stefano C. Previtali, Eugenio Mercuri, the ITASMAC working group   +43 more
wiley   +1 more source

AC-Chopper-Based Inrush Current Suppressor in a Wind Power Generation System with Squirrel-Cage Induction Machines

Energies, 2018
This paper proposes the inrush current suppressor using an AC chopper in a large-capacity wind power generation system (WPGS) with two squirrel-cage induction machines (SCIMs), which are switched over depending on the wind speed. The input side of the AC
Sho Shibata, Hiroaki Yamada, Toshihiko Tanaka, Masayuki Okamoto   +3 more
doaj   +1 more source

Differential amplifier with regulator achieves high stability, low drift [PDF]

, 1961
When d-c signals are to be amplified, the usual approach is to use a direct-coupled circuit. The difficulty of maintaining sufficiently low drift in a direct-coupled configuration led to the development of chopper and chopper-stabilized circuits, where ...
Middlebrook, R. D., Taylor, A. D.
core  

Building a Framework for Sexual and Reproductive Health Care in the Rheumatology Context: Content and Approaches

Arthritis Care &Research, EarlyView.
People with systemic autoimmune and rheumatic diseases (SARDs) are at higher risk than the general population of experiencing adverse pregnancy and perinatal outcomes such as preeclampsia, intrauterine growth restriction, and maternal and/or fetal death.
Mehret Birru Talabi, Sonya Borrero
wiley   +1 more source