Results 41 to 50 of about 130,054 (362)
A Miniature Pockels Cell with Novel Electrode Geometry
Sensors, 2009 This paper discusses important elements of the Pockels sensing cell design. A novel electrode geometry is analyzed in order to obtain maximum sensitivity response from Pockels crystals (Bi12GeO20). This neither transversal nor truly longitudinal geometry,
Pedja Mihailovic +2 more
doaj +1 more source
Effects of a space modulation on the behavior of a 1D alternating Heisenberg spin-1/2 model
, 2011 The effects of a magnetic field ($h$) and a space modulation ($\delta$) on the magnetic properties of a one dimensional antiferromagnetic-ferromagnetic Heisenberg spin-1/2 model have been studied by means of numerical exact diagonalization of finite size
Abouie, Jahanfar, Mahdavifar, Saeed
core +1 more source
Modeling and Simulation of Voltage Inverter with Sigma-Delta Modulation [PDF]
, 2017 Cílem diplomové práce je vytvořit modulační strategii využívající principu sigma-delta modulace. V úvodních teoretických pasážích práce jsou popsány principy a vlastnosti vybraných standardních metod řízení napěťových střídačů.
Kořený, Lukáš
core
Global stability, limit cycles and chaotic behaviors of second order interpolative sigma delta modulators [PDF]
, 2011 It is well known that second order lowpass interpolative sigma delta modulators (SDMs) may suffer from instability and limit cycle problems when the magnitudes of the input signals are at large and at intermediate levels, respectively.
Ho, Yuk-Fan +3 more
core +1 more source
Molecular Oncology, EarlyView.HDAC4 is degraded by the E3 ligase FBXW7. In colorectal cancer, FBXW7 mutations prevent HDAC4 degradation, leading to oxaliplatin resistance. Forced degradation of HDAC4 using a PROTAC compound restores drug sensitivity by resetting the super‐enhancer landscape, reprogramming the epigenetic state of FBXW7‐mutated cells to resemble oxaliplatin ...
Vanessa Tolotto +13 more
wiley +1 more source
A selectable-bandwidth 3.5 mW, 0.03 mm(2) self-oscillating Sigma Delta modulator with 71 dB dynamic range at 5 MHz and 65 dB at 10 MHz bandwidth [PDF]
, 2012 In this paper we present a dual-mode third order continuous time Sigma Delta modulator that combines noise shaping and pulse-width-modulation (PWM). In our 0.18 micro-m CMOS prototype chip the clock frequency equals 1 GHz, but the PWM carrier is only ...
Gielen, Georges +3 more
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FEBS Open Bio, EarlyView.KHS‐Cnd peptide is able to impair biofilm formation and disaggregate mature biofilms in Acinetobacter baumannii clinical isolates. Differences in extracellular metabolites reflect changes in biofilm metabolism due to KHS‐Cnd treatment. Among the differentially represented extracellular metabolites upon KHS‐Cnd treatment, the significantly altered ...
Fernando Porcelli +9 more
wiley +1 more source
IEEE Open Journal of Signal ProcessingThis article considers the context of multiuser massive MIMO downlink precoding with low-resolution digital-to-analog converters (DACs) at the transmitter. This subject is motivated by the consideration that it is expensive to employ high-resolution DACs
Wai-Yiu Keung, Wing-Kin Ma
doaj +1 more source
Analysis of Booth Multiplier based Conventional and Short Word Length FIR Filter
Mehran University Research Journal of Engineering and Technology, 2018 The optimized implantation of digital filters has remained one of the challenging tasks, for FPGA (Field- Programmable Gate Array) based system designers, due to the involvement of very complex circuitry for multiplication.
Aneela Pathan +3 more
doaj +1 more source
HTS pulse-stretcher and second order modulator: design and first results [PDF]
, 2005 One of the remaining challenges in the application of superconducting electronics is the interfacing between superconducting and semiconducting environments. The voltage and speed mismatch between RSFQ pulses and semiconducting read-out electronics makes
Brinkman, Alexander +8 more
core +2 more sources