Results 151 to 160 of about 131,904 (302)

Schiff based derived homogeneous catalysts for ring‐opening terpolymerization

open access: yesPolymer International, EarlyView.
One‐pot synthesis of degradable terpolymers from l‐lactide, propylene oxide and CO₂ using diverse catalysts is described, revealing structure–property relationships for tailored applications in sustainable materials. Abstract In this study, we synthesized and evaluated a series of Schiff base cobalt catalysts for the terpolymerization of propylene ...
Akanksha Ranade, Amjad Ali, Rajeev Mehta
wiley   +1 more source

Multi-Port Vacuum Assembly Device Designed for Simplified Point-of-Need Chemical and Biological Analyses Using Mass Spectrometry. [PDF]

open access: yesAnal Chem
Trimpin S   +9 more
europepmc   +1 more source

Indium‐Free Silicon Heterojunction Solar Cells: Achieving High Conductivity With Magnetron‐Sputtered SnO2

open access: yesProgress in Photovoltaics: Research and Applications, EarlyView.
Amorphous SnO2 films with low resistivity (~1.2 × 10−3 Ωcm) were realized by low‐temperature magnetron sputtering through control of O2 flow ratio, substrate temperature, and H incorporation. Si heterojunction solar cells incorporating these films achieved a conversion efficiency of 21.1%, approaching that of cells based on MS‐ITO and RPD‐SnO2 ...
Takashi Koida   +2 more
wiley   +1 more source

Muscle fatigue in patients with severe long COVID: A 2‐year follow‐up study

open access: yesPM&R, EarlyView.
Abstract Background Fatigue is recognized as one of the most persistent and debilitating symptoms of long COVID, affecting both functionality and quality of life. However, its long‐term effects, especially beyond the first year after infection, remain poorly understood.
Isabella da Silva Almeida   +6 more
wiley   +1 more source

Sai Buri (Thailand), customs house

open access: yes, 1936
Pattani-Bangnara Road; Km 30-53 Taluban and Saiburi [Sai Buri]. Amp. Saiburi [Sai Buri]. June 28, 1936. Customs house.
Pendleton, Robert Larimore, 1890-1957
core  

Scaling turbulence drives the general circulation

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
The NOAA Gulfstream SP4, which deployed the GPS dropsondes over the NE Pacific Ocean as part of the Winter Storms Project during the January–March periods of 2004, 2005 and 2006. Abstract Statistical multifractal analysis of airborne and dropsonde observations is used to show that persistence of velocity after molecular collisions breaks the continuous
Adrian F. Tuck
wiley   +1 more source

Stair‐Climbing Wheelchairs for Enhanced Mobility: A Comprehensive Review of Fundamental Mechanisms, Design Concepts, and Performance Analysis

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT People with physical disabilities face significant mobility challenges while climbing uneven surfaces and staircases. In these circumstances, traditional wheelchairs do not provide stable, safely controlled mobility, underscoring the importance of building superior stair‐climbing wheelchairs for both medical and infrastructure purposes.
Gopisetti Manikanta   +10 more
wiley   +1 more source

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