Results 81 to 90 of about 2,596,520 (293)

Characterizing Biopolymer Electrolytes in Zinc–Air Batteries: Challenges, Best Practices, and a Robust Workflow Guiding Future Research Paths

Advanced Energy Materials, EarlyView.
Bio‐based gel polymer electrolytes promise sustainable, mechanically adaptable zinc–air batteries, yet their progress is constrained by inconsistent characterization. This review critically links formulation, structure, interfaces, and cell performance, identifies methodological gaps under alkaline operating conditions, and proposes application ...
Matteo Milanesi, Hiba Ali, Barbara Belza, Mattia F. Palermo, Claudio Gerbaldi, Giuseppe Antonio Elia, Nagore Ortiz‐Vitoriano   +6 more
wiley   +1 more source

Multifunctional Matrix‐Activated Electrodes Enabling Efficient Proton Transport and Durable Low‐Pt Operation for High‐Temperature Proton Exchange Membrane Fuel Cells

Advanced Energy Materials, EarlyView.
This work introduces a CeHP‐enabled multifunctional matrix‐activated electrode (MME) for high‐temperature PEM fuel cells, forming an electrochemically and mechanically functional matrix within the catalyst layer. The design increases peak power density by 38% and reduces voltage decay by 62% at 240 °C, while using only 40% of the Pt loading of a ...
Gyeongseok Gwak, Sunjin Park, Joonbyum Kim, Hena Lee, Jihyeon Ok, Chae Young Lee, JunHwa Kwon, Jong Geun Seong, Sung Pil Yoon, Suk‐Woo Nam, Hansung Kim, Katie Heeyum Lim, So Young Lee   +12 more
wiley   +1 more source

Optimized Splitless Injection of Hydroxylated PCBs by Pressure Pulse Programming

, 1995
Hydroxylated polychlorobiphenyls (polyhydroxy-PCBs) are subjected to severe discrimination effect when they are introduced into a capillary gas chromatograph by splitless injection.
ROVIDA C., SEGA, MICHELA, MINERO C, VINCENTI M   +3 more
core   +1 more source

Differential Diagnosis of Mucopolysaccharidoses Types I, II, III, IVA, and VI Through Analysis of Leukocytic Inclusions

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Mucopolysaccharidoses (MPS) are lysosomal storage disorders characterized by the accumulation of glycosaminoglycans (GAGs), which can lead to cytoplasmic alterations in leukocytes. The objective of this study was to characterize leukocyte inclusions in patients with different types of MPS and assess their diagnostic relevance.
Márcio A. W. Melo, Marcelo S. Kertenetzky, Cristina M. Silveira, Maíra M. Ribeiro, Paula F. Medeiros, Gabriela S. Arcanjo   +5 more
wiley   +1 more source

Volatile compounds from leaves of Aegle marmelos (L.) Correa grown in Cuba

Revista CENIC Ciencias Químicas, 2005
Aegle marmelos (L.) Correa which belongs to the Rutaceae family is abundantly available all over India. Almost every part of the plant is used in traditional medicine of this region. Volatile compounds from leaves of plants grown in Cuba were isolated by
Jorge A. Pino, Rolando Marbot, Victor Fuentes   +2 more
doaj  

Trans isomers contents of the fatty acids in meat products. (I) Sausages

Grasas y Aceites, 1991
We have studied the trans isomers contents of the fatty acids fraction in several types of Spanish sausages, after a previous fat extraction and gas chromatography determination using CP Sil 88 coated capillary columns.
N. Hernández, R Codony, M. Rafecas, J. Boatella   +3 more
doaj   +1 more source

GC-MS METHOD FOR SIMULTANEOUS ANALYSIS OF DICARBOXYLIC ACIDS AND SUGARS IN ATMOSPHERIC AEROSOL: RESPONSE SURFACE METHODOLOGY FOR OPTIMIZING SOLVENT EXTRACTION.

, 2012
Water-soluble organic compounds (WSOCs) are an important group of chemical tracers that may give relevant information on the relative strengths of primary emission sources and secondary photochemical processes on air quality.
BACCO, Dimitri, PIETROGRANDE, Maria Chiara, CHIEREGHIN, Sara   +2 more
core  

Revisiting Securidaca longipedunculata Seed Oil: Applying NMR and Mass Spectroscopy to Confirm the Presence of 2‐Acetyl‐1,3‐Diacyl–sn‐Glycerols and Conjugated Hydroxydienoic Fatty Acids

Journal of the American Oil Chemists' Society, EarlyView.
The manuscript confirms and expands on previous reports concerning the presence of unusual conjugated hydroxydienoic fatty acids and acetyl‐TAG in the seed oil of Securidaca longipedunculata. The location of acetate only at sn‐2 of TAG was conclusively shown by high resolution NMR and hydroxy seed fatty acids are characterized.
Mark A. Smith, Jianfeng Zhu, Jin‐Yue Sun   +2 more
wiley   +1 more source

Gas chromatographic determination of alcohols as tracers in monitoring oil fields with polymethylsilicone phase modified by cobalt acetylacetonate

Известия Томского политехнического университета: Инжиниринг георесурсов, 2019
The relevance of the discussed issue is caused by the need to improve the reliability and accuracy of the tracers for monitoring oil fields. Tracer analysis allows us to determine the direction of the main filtration flows during flooding.
Mikhail Alekseevich Gavrilenko, Elizaveta Gazieva, Svetlana Shumar, Inna Kirsanova, Anastasiya Egoshina, Maria Gavrilenko   +5 more
doaj   +2 more sources

Comparative Survey on Chemical Composition of the First and the Second Essential Oils of Rosa damascena Mill. in Different Locations in Iran

Journal of Medicinal Plants, 2011
Background: Roses have been used since ancient time in rituals, cosmetics, perfumes, medicines and aromatherapy. Turkey, the main rose oil producer in the world, uses R. damascena Mill. for rose oil production.
Tayebeh Shamspur, Ali Mostafavi
doaj