Results 41 to 50 of about 80,052 (324)

Hands‐on protocol for preparing water‐soluble fractions from agri‐food samples for NMR‐based metabolomics analysis

open access: yesFEBS Open Bio, EarlyView.
This research protocol outlines a workflow for nuclear magnetic resonance (NMR)‐based metabolomics in the agri‐food sector. Using two case studies—strawberry leaves (solid matrix) and wine (liquid matrix)—it details the procedures for sample preparation, data acquisition, and processing.
Andrea Fernández‐Veloso   +4 more
wiley   +1 more source

Positive Real Zeros in Flexible Beams

open access: yesShock and Vibration, 1995
Feedback control of flexible structures naturally involves actuators and sensors that often cannot be placed at the same point in the structure. It has been widely recognized that this noncollocation can lead to difficult control problems and, in ...
Eric H. Maslen
doaj   +1 more source

Pergeseran Transmission Zeros Akibat Perubahan Komponen Penggandeng Silang [PDF]

open access: yes, 2014
Filter memainkan peranan yang penting dalam pemprosesan data. Di dalam teknik telekomunikasi, filter memilih sinyal terima/pancar yang diinginkan dengan membuang sinyal lainnya. Filter digunakan untuk memisahkan sinyal-sinyal yang memiliki frekuensi yang
Alaydrus, M. (Mudrik)
core  

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Tri-/Quad-/Quint-Band Bandpass Filters Based on Transversal Embedded Asymmetrical Square-Ring Resonator

open access: yesIEEE Access
This paper presents a series design method for tri-/quad-/and quint band bandpass filter (BPF) with multiple transmission zeros (TZs) based on an embedded asymmetrical square-ring resonator (ASRR).
Xiaohan Wan   +6 more
doaj   +1 more source

Active rc filter permits easy trade-off of amplifier gain and sensitivity to gain [PDF]

open access: yes, 1968
Passive RC network was designed with zeros of transmission in the right half of the complex frequency plane in the feedback loop of a simple negative-gain amplifier.
Kerwin, W. J., Shaffer, C. V.
core   +1 more source

Interactions and thermoelectric effects in a parallel-coupled double quantum dot [PDF]

open access: yes, 2016
We investigate the nonequilibrium transport properties of a double quantum dot system connected in parallel to two leads, including intradot electron-electron interaction. In the absence of interactions the system supports a bound state in the continuum.
Dominguez-Adame, F.   +3 more
core   +2 more sources

Decreased Serum 5‐HT: Clinical Correlates and Regulatory Role in NMJ of MG

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Although 5‐Hydroxytryptamine (5‐HT) indirectly stimulates muscle contraction and participates in regulating Acetylcholine receptor (AChR) cluster homeostasis in cellular, animal, and clinical studies, evidence regarding its potential to modulate muscle contraction in myasthenia gravis (MG) remains limited.
Xinru Shen   +18 more
wiley   +1 more source

K-Band Waveguide Resonator Bandpass Filter Structure With Adjustable Transmission Zeros for Producing Various Symmetric and Asymmetric Responses

open access: yesIEEE Access
This work is to present a versatile K-band waveguide resonator bandpass filter structure capable of producing various responses with a pair of transmission zeros. One of the significant features of the presented filter structure is its ability to produce
Sanggu Lee   +5 more
doaj   +1 more source

Ultra-Wide Stopband Low-Pass Filter Using Multiple Transmission Zeros

open access: yesIEEE Access, 2017
AA compact microstrip low-pass filter (LPF) with an ultra-wide stopband and its design procedure are proposed in this paper. Using three-stepped impedance stubs(SISs), multiple transmission zeros are introduced in the stopband and can be freely ...
Fu-Chang Chen, Run-Shuo Li, Qing-Xin Chu
doaj   +1 more source

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