Results 81 to 90 of about 272,374 (381)

UR‐cycleGAN: Denoising full‐body low‐dose PET images using cycle‐consistent Generative Adversarial Networks

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study aims to develop a CycleGAN based denoising model to enhance the quality of low‐dose PET (LDPET) images, making them as close as possible to standard‐dose PET (SDPET) images. Methods Using a Philips Vereos PET/CT system, whole‐body PET images of fluorine‐18 fluorodeoxyglucose (18F‐FDG) were acquired from 37 patients to ...
Yang Liu, ZhiWu Sun, HaoJia Liu
wiley   +1 more source

Electronic structure simulation of gallium arsenide clusters [PDF]

open access: yes, 2009
Semiconductor clusters have occupied the centre of scientific interest because of their unique electronic nature. Among the group III-V compound clusters, the gallium arsenide clusters have been the focus of this research due to their importance in ...
Musa, Nor Muniroh
core  

Gallium: Automated Software Middlebox Offloading to Programmable Switches

open access: yesConference on Applications, Technologies, Architectures, and Protocols for Computer Communication, 2020
Researchers have shown that offloading software middleboxes (e.g., NAT, firewall, load balancer) to programmable switches can yield orders-of-magnitude performance gains.
Kaiyuan Zhang   +2 more
semanticscholar   +1 more source

Coulometric titration of gallium in gallium arsenide.

open access: yesBUNSEKI KAGAKU, 1990
電量滴定法によりヒ化ガリウム中のガリウムの定量を行った.分析方法としては,ガリウムに対して過剰のEDTAを加えてキレート生成させて,過剰分を電解発生させた銅(II)イオンで逆滴定するという手法を採った.そこでEDTAの純度分析を行ったところ,銅(II)イオンによる滴定条件において基礎液の濃度とpH調節が重要であった.又滴定終点は,ポテンショスタットで電位規制した作用電極上での銅(II)イオンの還元電流を利用して決定した.EDTAの純度分析の結果は99.749%となり,この値に基づいて高純度ガリウムの定量,更にヒ化ガリウム中のガリウムの定量を行った.ヒ化ガリウムを試料とした場合には共存するヒ素(V)の影響が大きいことから,ヒ素(III)への還元操作を加えた ...
Shigeyoshi Nakayama   +2 more
openaire   +2 more sources

Planar hexacoordinate gallium

open access: yesChemical Science, 2021
A star-like texture containing a planar hexacoordinate gallium center is reported in the lowest energy isomer of the GaBe6Au6+cluster. High thermodynamic and kinetic stability of the title cluster makes it suitable candidate for experimental realization.
Meng-hui Wang   +4 more
openaire   +4 more sources

Plasma microRNA Signature as Predictive Marker of Clinical Response to Therapy During Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Despite the availability of effective therapies for Multiple Sclerosis (MS), the unpredictable nature of disease progression and the variability in individual treatment outcomes call for reliable biomarkers. This pilot study aims to investigate the potential of plasma circulating microRNAs (miRNAs) as predictive biomarkers for ...
Fortunata Carbone   +19 more
wiley   +1 more source

SORPTION OF Ga (III) ON FLEXIBLE OPEN CELL POLYURETHANE FOAM OF POLYETHER TYPE IMPREGNATED WITH TRI-N-BUTHYL PHOSPATE [PDF]

open access: yesChemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2007
The obtained results concerning the Ga (III) ion retention on flexible open cell polyurethane foam of polyether type pretreated with tri-n-butyl phosphate are presented.
Lavinia Tofan   +3 more
doaj  

Selective Separation and Preconcentration of Trace Amounts of Gallium in Water and Rice Samples Using Cloud Point Extraction and Determination by Inductively Coupled Plasma-Atomic Emission Spectrometry [PDF]

open access: yesInternational Journal of New Chemistry, 2018
In the present study a cloud-point extraction process using non-ionic surfactant Triton X-114 for selective extraction of gallium from aqueous solutions was developed. The method is based on the complex formation of Ga (III) with N, N′ -bis (salycilidene)
Asadollah Beiraghi, Mina Roshdi
doaj   +1 more source

Atomic gallium laser spectroscopy with violet/blue diode lasers

open access: yes, 2003
We describe the operation of two GaN-based diode lasers for the laser spectroscopy of gallium at 403 nm and 417 nm. Their use in an external cavity configuration enabled the investigation of absorption spectroscopy in a gallium hollow cathode.
Arimondo, E.   +3 more
core   +1 more source

Measurements of mechanical Q in levitated paramagnetic crystals [PDF]

open access: yes, 2000
Thermal noise from test masses, arising both from internal noise in the test mass material and from losses in the suspension wires and their attachments, is a significant factor limiting sensitivity of interferometric gravity-wave detectors.
Augst, S. J., Drever, R. W. P.
core   +1 more source

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