Results 131 to 140 of about 296,058 (324)

Turbo Detection of Symbol-Based Non-Binary LDPC-Coded Space-time Signals using Sphere Packing Modulation

open access: yes, 2005
A recently proposed space-time signal construction method that combines orthogonal design with sphere packing, referred to here as (STBC-SP), has shown useful performance improvements over Alamouti’s conventional orthogonal design.
Alamri, O.R.   +3 more
core  

Selective Modification of the Product Profile of Biocatalytic Hydrolyzed PET via Product‐Specific Medium Engineering

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
The product profile of enzymatically hydrolyzed PET can be modified by medium engineering and thereby adapted to a desired product. TPA, MHET or BHET can be forced as the predominant product using a basic pH (blue), 25 % ethylene glycol (EG) and IsPETasewt (green) or ≥25 % EG and LCCICCG (pink), respectively.
Tobias Heinks   +8 more
wiley   +1 more source

Pt Single Atom Deposition by Direct Current Sputtering in the Gas‐Scattering Regime—A Simple Approach to Controlled Single Atom Loading

open access: yesChemSusChem, EarlyView.
Highly controlled Pt single atom deposition (SA) is achieved by gas‐phase scattering sputtering on various substrates. This method enables soft Pt single atom loading and uniform SA distribution. In the example, it is shown that how Pt SA loading on TiO2 can be established and used for photocatalytic H2 generation.
Xin Zhou   +4 more
wiley   +1 more source

Microfluidic‐Assisted Evolution of a Robust NAD+‐Dependent Enzyme with Improved Isobutanol Tolerance at Elevated Temperatures

open access: yesChemSusChem, EarlyView.
Utilizing the power of the absorbance‐activated droplet sorter, a key enzyme for a cell‐free multienzymatic cascade for sustainable isobutanol biosynthesis is optimized for improved thermostability and isobutanol tolerance required for efficient cascade performance.
Mariko Teshima   +6 more
wiley   +1 more source

Clinical performance of a novel and rapid bioassay for detection of thyroid-stimulating immunoglobulins in Graves’ orbitopathy patients: a comparison with two commonly used immunoassays

open access: yesFrontiers in Endocrinology
BackgroundFor the selective detection of thyroid-stimulating hormone receptor antibodies with stimulating properties (thyroid-stimulating immunoglobulins; TSI), a novel and rapid bioassay (Turbo TSI) has been introduced.
Gijsbert J. Hötte   +15 more
doaj   +1 more source

Retrospective Evaluation of Novel Synthetic Opioids and Xylazine Chronic Intake by Post‐Mortem Hair Testing

open access: yesDrug Testing and Analysis, EarlyView.
The study presents a validated UPLC‐MS/MS method applied for the detection of fentanyl, NPFs, xylazine, nitazenes in hair samples from 250 post‐mortem cases collected at the Jefferson County Coroner/Medical Examiner's Office (Birmingham, AL, USA). In 52% of the analyzed hair samples, fentanyl, its main metabolites, and related analogs were detected ...
Marco Ballotari   +6 more
wiley   +1 more source

Optimization of Parallel Artificial Liquid Membrane Extraction for the Determination of Over 50 Psychoactive Substances in Oral Fluid Through UHPLC–MS/MS

open access: yesDrug Testing and Analysis, EarlyView.
This study is related to the development of a microextraction method for the determination of 56 psychoactive substances in oral fluid. Sample clean‐up is obtained by parallel artificial liquid membrane extraction and analyzed by liquid chromatography–tandem mass spectrometry.
Martina Croce   +6 more
wiley   +1 more source

Performance Evaluation and Fluid Flow Analysis in Low Flow Stages of Industrial Centrifugal Compressor

open access: yesInternational Journal of Rotating Machinery, 2002
Yuri I. Biba, David A. Nye, Zheji Liu
doaj   +1 more source

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