Results 91 to 100 of about 2,813,006 (349)

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

Advanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar, Matthew Large, Andrea Ciavatti, Laura Basiricò, Beatrice Fraboni, Paul J. Sellin, Attila J. Mozer, Marco Petasecca, Matthew J. Griffith   +8 more
wiley   +1 more source

Objective Evaluation of Pulse Width Using an Array Pulse Diagram

Journal of Evidence-Based Integrative Medicine
Background Pulse width, which can reflect qi , blood excess, and deficiency, has been used for diagnosing diseases and determining the prognosis in traditional Chinese medicine (TCM).
Zi-Juan Bi PhD, Ji Cui PhD, Xing-Hua Yao PhD, Xiao-Juan Hu PhD, Si-Han Wang PhD, Meng-Chen Liang MRes, Zhi-Hui Zhou PhD, Jia-Tuo Xu PhD   +7 more
doaj   +1 more source

Energy Saving in Permanent Cardiac Pacing: Pulse Waveform and Charge Balancing Deserve Consideration

Bioengineering
The pacing pulse produced by implantable stimulators can be described as a truncated exponential decay from the starting peak amplitude, corresponding to the discharge of the output stage capacitance (reservoir and isolation capacitors, in series) along ...
Franco Di Gregorio, Lina Marcantoni, Aldo Mozzi, Alberto Barbetta, Francesco Zanon   +4 more
doaj   +1 more source

Assessment of the Peripheral Blood Flow of Lower Limbs in Patients with Diabetes Mellitus with the Use of Digital Photoplethysmography

Acta Medica Martiniana, 2015
Introduction: The microcirculation of the lower limbs (LL) of diabetics is influenced by hyperglycemia and several factors (hypertension, obesity, dyslipidemia) leading to the functional and later the structural changes, manifesting as dysregulation of ...
Hubena G., Osina O., Prindesova Busikova, Vasicko T.   +3 more
doaj   +1 more source

An Accurate and Compact High Power Monocycle Pulse Transmitter for Microwave Ultra-Wideband Radar Sensors with an enhanced SRD model: Applications for Distance Measurement for lossy materials

Advanced Electromagnetics, 2019
In This paper, a high power sub-nanosecond pulse transmitter for Ultra-wideband radar sensor is presented. The backbone of the generator is considered as a step recovery diode and unique pulse injected into the circuit, which gives rise to an ultra-wide ...
Y. Ahajjam, O. Aghzout, J. M. Catala-Civera, F. Peñaranda-Foix, A. Driouach   +4 more
doaj   +1 more source

Isolated output for class-D dc amplifiers [PDF]

, 1973
Transformer-coupled output stage is used with pulse-width modulated class-D dc amplifiers. Circuit is comprised of two channels corresponding to negative and positive input signals.
Honnel, M. A., Newell, J. K.
core   +1 more source

Vestibular implant stimulation: pulse amplitude modulation versus combined pulse rate and amplitude modulation

Journal of Neural Engineering
Abstract Objective. The vestibular implant is a potential treatment approach for bilateral vestibulopathy patients. To restore gaze stabilization, the implant should elicit vestibulo-ocular reflexes (VORs) over a wide range of eye velocities.
van Boxel, Stan C J, Vermorken, Bernd L, Volpe, Benjamin, Guinand, Nils, Perez Fornos, Angelica, Devocht, Elke M J, van de Berg, Raymond   +6 more
openaire   +4 more sources

Organic Electrochemical Transistor Channel Materials: Copolymerization Versus Physical Mixing of Glycolated and Alkoxylated Polymers

Advanced Functional Materials, EarlyView.
This work discusses the use of blended channel materials in OECTs. It explores how mixing glycolated and alkoxylated polymers in various ratios offers a simpler and more efficient route to tuning OECT properties. The performance of the polymer blends is compared to the corresponding copolymers, demonstrating similar OECT characteristics, swelling ...
Lize Bynens, Kaishuai Zhang, Priscila Cavassin, Arwin Goossens, Jochen Vanderspikken, Tania C. H. Castillo, Demetra Tsokkou, Adam Marks, Arianna Magni, Karrie Weaver, Laurence Lutsen, Sahika Inal, Koen Vandewal, Natalie Banerji, Wouter Maes   +14 more
wiley   +1 more source

Noninvasive Point of Care Device for Assessing Cardiac Response to Acute Volume Changes

Medical Devices: Evidence and Research, 2023
Harry A Silber,1 Nisha A Gilotra,1 Thomas L Miller2,3 1Department of Medicine, Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA; 2Enalare Therapeutics, Inc, Princeton, NJ, USA; 3Department of Pediatrics, Sidney ...
Silber HA, Gilotra NA, Miller TL
doaj  

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

Advanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong, William D. J. Tremlett, Lucy Hart, Beier Hu, Zhuoran Qiao, Patipan Sukpoonprom, Sarah Fearn, Edoardo Angela, Matilde Brunetta, Demosthenes C. Koutsogeorgis, Nikolaos Kalfagiannis, Davide Nodari, Martyn A. McLachlan, Piers R. F. Barnes, Artem A. Bakulin, Nicholas J. Long, Nicola Gasparini   +16 more
wiley   +1 more source