Results 11 to 20 of about 70,898 (211)

Electron-Mediator-Free Microfluidic Photocatalytic Coenzyme Regeneration with 100% Conversion Efficiency within 126 S. [PDF]

Adv Sci (Weinh)
Discover a groundbreaking mediator‐free photocatalytic method for coenzyme NAD(P)H regeneration using BiOBr nanosheets in a microfluidic chip. This study achieves 100% NAD+ to NADH conversion in 126 s, maintaining >87% efficiency over 32 h. Explore how photocatalysis and microfluidics combine to offer a sustainable, scalable solution for green ...
Chai Y, Wan L, Pang Z, Li X, Jia Z, Jiang H, Tsoi CC, Jia H, Shen J, Zhang Z, Long J, Xie F, Chen Y, Zhang X.   +13 more
europepmc   +2 more sources

Prescribed Medication Burden by Tobacco Smoking and E-Cigarette Use Status. [PDF]

Health Sci Rep
ABSTRACT Purpose Tobacco smoking is a major driver of chronic disease, and e‐cigarette use is increasingly common, yet their associations with prescribed medication burden remain unclear. Methods We analysed data from 1657 adults aged ≥ 16 years who completed a nurse visit in the Health Survey for England 2021.
Adebisi YA, Uzairue LI, Farayola RO, Iyagbaye E, Ong CJN, Benson AE, Muzondo NV, Temitope AD.   +7 more
europepmc   +2 more sources

Attenuation of Ascites Following Surgical Ligation of a Congenital Caudal Mesenteric Arteriovenous Fistula in a Dog. [PDF]

Case Rep Vet Med
A 1‐year‐and‐9‐month‐old intact female Pembroke Welsh Corgi (10.5 kg) was referred for abdominal distension, intermittent diarrhea, and ascites. Abdominocentesis yielded 1200 mL of transudate (specific gravity, 1.008). Serum biochemistry showed hyperammonemia (NH3, 163 μg/dL), increased bile acids, and mild hypoalbuminemia.
Suzuki S, Tanaka S, Kanno N, Yogo T, Harada Y, Michishita M, Hara Y.   +6 more
europepmc   +2 more sources

Blind Joint Soft-Detection Assisted Slow Frequency-Hopping Multicarrier DS-CDMA [PDF]

, 2000
A novel multiple-access scheme based on slow frequency-hopping multicarrier direct-sequence, code-division multiple access (SFH/MC DS-CDMA) is proposed and investigated, which can be rendered compatible with the existing second-generation narrow-band ...
Hanzo, L., Yang, L-L.
core   +1 more source

An efficient data transmission policy in an integrated voice-data ds-cdma network [PDF]

, 1998
CDMA schemes appear to be promising access techniques for coping with the requirements of third-generation mobile systems, mainly because of their flexibility.
Agustí Comes, Ramon, Sallent Roig, José Oriol   +1 more
core   +1 more source

Robust or nonrobust: On MC-DS-CDMA acquisition in LEO satellite communications

Digital Communications and Networks, 2023
Low Earth Orbit (LEO) satellite communications can provide global coverage in the sixth generation communication (6G) networks. To combat the strong Partial Band Interferences (PBIs) and multipath fading in LEO satellite communication systems, the ...
Entong Meng, Xiangyuan Bu, Jihong Yu, Jianping An, Xuanhe Yang   +4 more
doaj   +1 more source

Performance Analysis of Multiple Input Multiple Output (MIMO) Multi-Carrier Code-Division Multiple Access (MC-CDMA) Combined with Quasi-Orthogonal Space Time Block Coding (QO-STBC) in Rayleigh Fading Channel

Positron, 2022
The need for a communication system with a higher data rate and mobility grows along with information and communication technology development. Combining MC-CDMA with the MIMO system and supporting the system with a good transmit diversity technique is a
Eka Kusumawardhani, Rina Pudji Astuti, Nachwan Mufti Adriansyah, Fitri Imansyah, Leonardus Sandy Ade Putra   +4 more
doaj   +1 more source

Performance evaluation of carrier interferometry implementations of MC-CDMA over a wideband channel suffering phase noise [PDF]

, 2005
In this paper the performance of Carrier Interferometry (CI) and Pseudo-Orthogonal Carrier Interferometry (PO-CI) [1] implementations of Multi-Carrier Code Division Multiple Access (MC-CDMA) are investigated.
Armour, SMD, Cooper, MA, McGeehan, JP, Taylor, N   +3 more
core   +2 more sources

MULTICHANNEL M-ARY BI-ORTHOGONAL KEYING

Information and Telecommunication Sciences, 2015
The new method of Multichannel M-ary Bi-Orthogonal Keying, its operating principle and performance studying are introduced in this paper. Utilized spectral efficiency and BER performance of this method are also studied in comparison with DS-CDMA. Overall
Kateryna P. Kovalchuk, Oleksandr V. Mazurenko   +1 more
doaj   +1 more source

Spectral Efficiency of Random Time-Hopping CDMA

, 2015
Traditionally paired with impulsive communications, Time-Hopping CDMA (TH-CDMA) is a multiple access technique that separates users in time by coding their transmissions into pulses occupying a subset of $N_\mathsf{s}$ chips out of the total $N$ included
Di Benedetto, Maria-Gabriella, Ferrante, Guido Carlo   +1 more
core   +3 more sources