Results 51 to 60 of about 3,026 (259)

Surface and Interfacial Engineering toward Durable Mechanically Coupled Flexible Electronics

Advanced Science, EarlyView.
This Review highlights how surface and interfacial engineering governs the reliability, durability, and functional stability of mechanically coupled flexible electronics. By integrating fundamental interfacial theory, failure mechanisms, multiscale engineering strategies, and representative applications, it provides a design‐oriented framework for ...
Qian Wang, Fangfang Dai, Wei Wu
wiley   +1 more source

IDENTIFICAÇÃO E QUANTIFICAÇÃO DO TEOR DE UMIDADE EM ÓLEO LUBRIFICANTE AUTOMOTIVO: UM ESTUDO DE CASO [PDF]

Química Nova
Lubricating oil is essential for operating internal combustion engines, protecting parts, reducing friction, and dissipating heat. However, water can lead to corrosion, oxidation, and sludge formation, reducing viscosity, and lubricating capacity.
Diogo La Rosa Novo, Lucas Ceron Kikhofel, Milene Marques Freitas, Wanderson da Silva Roriz, Claudio Martin Pereira de Pereira, Daniela Bianchini, Carla de Andrade Hartwig   +6 more
doaj   +1 more source

Regeneración de aceites lubricantes usados que cumplan la norma NTE - INEN 2030 en el Ecuador, empleando el método de extracción con butanol y el método ácido-arcilla.

Revista de Investigaciones en Energía, Medio Ambiente y Tecnología, 2020
Se comparó  parámetros, concentración de residuos y su viabilidad económica de los métodos más utilizados para la regeneración de aceites lubricantes.
Cristhian Santiago Rumiguano Macas
doaj   +1 more source

Photo‐Gated Corona Microfluidics

Advanced Science, EarlyView.
Photo‐gated corona microfluidics decouples optical programming from electric‐field actuation to enable reconfigurable manipulation on open, electrode‐pattern‐free surfaces. Near‐infrared irradiation locally melts paraffin, creating a reversible charge‐relaxation pathway that reconstructs the electric field.
Xiaxia Cui, Yiqing Liu, Xinyi Qiu, Manfei Liu, Biao Cheng, Yuan Zhou, Changguo Xue, Sheng Zhang, Xin Tang, Qiang Tang   +9 more
wiley   +1 more source

Modeling of Selected Parameters of Used Lubricating Oil Diluted with Diesel Oil Using the Characteristics of Fresh Lubricating Oil

Energies
This article presents the verification of the hypothesis on using certain approximation curves in the evaluation of used lubricating oil. These curves are plotted for fresh lubricating oil to approximate the parameters of lubricating oil diluted with ...
Leszek Chybowski, Marcin Szczepanek, Robert Sztangierski, Piotr Brożek   +3 more
doaj   +1 more source

Drop‐Location‐Insensitive Droplet‐Based Electricity Generator Using Polydimethylsiloxane Slippery Covalently Attached Liquid Coatings

Advanced Science, EarlyView.
Drop‐location sensitivity remains a key barrier to practical droplet‐based electricity generators (DEGs). Here, a polydimethylsiloxane slippery covalently attached liquid (PDMS‐SCAL)‐coated interface promotes droplet sliding instead of splitting or bouncing, allowing stable electricity generation from randomly falling raindrops. The resulting PDMS‐SCAL‐
Jung Bin Yang, Donghyeon Yoo, Hideaki Teshima, Donghan Lee, Dongwhi Choi, Dong Rip Kim, Nenad Miljkovic   +6 more
wiley   +1 more source

Natural Aging of Biomaterials in Ambient and Physiological Environments

Advanced NanoBiomed Research, EarlyView.
Biomaterials used in biomedical applications can change their physical properties over time, even under ambient and physiological conditions. This review highlights key studies on the natural aging of materials ranging from soft hydrogels to metals and ceramics, emphasizing how time‐dependent changes influence function and performance.
Shuyu Zhang, Anne E. Staples
wiley   +1 more source

Alkali‐Catalyzed Synthesis of Acylglycerol Estolides Exclusively from Castor Oil

Journal of the American Oil Chemists' Society, EarlyView.
This work advances sustainable chemistry by converting renewable castor oil into high‐performance estolides via solvent‐free, low‐energy catalysis. ABSTRACT Estolides are oligomers composed of fatty acid (FA) monomers linked through secondary ester bonds located along the mid‐chain region.
Lucas Natã de Melo, Simoni Margareti Plentz Meneghetti, Mario Roberto Meneghetti, Janaína Heberle Bortoluzzi   +3 more
wiley   +1 more source

Application of a mixed solvent system in the determination of metals in lubricating oils using atomic absorption spectrometry

Bulletin of the Chemical Society of Ethiopia, 2006
Analysis of lubricating oils and their additives for Ni, Zn, Mg and Ca was carried out by the proposed method using benzene-acetic acid/methyl isobutyl ketone (MIBK) mixed solvent system. Flame atomic absorption spectrometry using air-acetylene flame was
E.O. Ojeka
doaj  

SATUFER Method for Determining the Degree of Lubricating Oil Dilution with Diesel Oil in an Internal Combustion Engine Lubrication System

Energies
This article presents a proposed a new method for estimating the degree of dilution of lubricating oil with diesel oil, which can be applied to systems for ongoing monitoring of lubricating oil quality in an internal combustion engine.
Leszek Chybowski, Marcin Szczepanek, Przemysław Kowalak   +2 more
doaj   +1 more source