Results 111 to 120 of about 5,712 (292)
Applied SciencesThe dilution of lubricating oil with diesel oil (DO) is a significant operational problem in piston combustion engines, as it degrades lubrication conditions and may accelerate the wear of interacting components.
Leszek Chybowski +3 more
doaj +1 more source
Synthetic lubricants and lubricating oil additives.
Journal of The Japan Petroleum Institute, 1988 著者が行ってきた合成潤滑油および添加剤の研究を紹介する。1)ポリオールエステル2種類の混合基油を用いて高温安定性のすぐれた7808Fグレードジェットエンジン油を開発した。2)2-エチルヘキサノール製造時に副生するC16エーテルは高粘度指数作動油の基油としてすぐれている。3)ポリC1～C4アルキルメタクリレートは芳香族りん酸エステルに可溶であり, 粘度指数向上効果をもつ。4)チオりん酸亜鉛とアミンとは錯体をつくる。錯体は4種類ある。油中で解離平衡状態にあり, 解離度はアミンの立体障害と塩基度により決まる。錯体の合潤中での耐摩耗性はその熱安定性よりも金属表面への吸着性に支配される。
openaire +2 more sources
EFFECT OF SOLVENT FLOW RATE ON THE SUPERCRITICAL CARBON DIOXIDE EXTRACTION OF ANDROGRAPHOLIDE FROM ANDROGRAPHIS PANICULATA [PDF]
, 2006 Malaysia is one of the major medicinal plants (Andrographis paniculata) producers in the world. Extraction of bioactive component (andrographolide) from ground dried leaves of this plant using supercritical carbon dioxide has been studied.
Kumoro, A.C., Hasan, M.
core
Effects of yeast polysaccharides on the quality of wheat dough and toast
Food Biomacromolecules, EarlyView.Abstract This study assessed how the soluble yeast polysaccharide (SYP) affected the physicochemical, pasting, and rheological properties of the wheat flour as well as the texture, the visual appearance, and the sensory evaluation of the toast.
Guozhen Wang +5 more
wiley +1 more source
Food Safety and Health, EarlyView.Natural processed cheeses showed a more favorable nutritional profile, including higher unsaturated fatty acids and better functional performance. A balanced fatty acid composition was identified as a key factor influencing meltability, oil separation, and overall quality of processed cheeses.
Shaimaa M. Hamdy +3 more
wiley +1 more source
Tribological properties of graphene oxide as a lubricating additive in water and lubricating oils
, 2015 High-performance lubricating additives are desired in order to improve the properties of lubricating fluids. Recently, carbon nanomaterials such as fullerenes, carbon nanotubes, and carbon onions have been studied as lubricating additives for water and ...
Hideki ONO +4 more
core +1 more source
Heat Transfer, EarlyView.ABSTRACT Compact plate‐fin heat exchangers (PFHEs) are commonly utilized in diverse industries, including aerospace, automotive, processing, and space. Various fin configurations, such as Plain fins, Wavy fins, Lance and Offset fins (OSFs), Perforated fins, louvered fins, and pin fins, are employed in compact heat exchangers (CHEs).
Chennu Ranganayakulu
wiley +1 more source
Regeneration of used lubricating oil as a source of energy
Arid Zone Journal of Engineering, Technology and Environment, 2001 Conservation of natural resources by refining used lubricating oil was attempted in this work. Used lubricating oil was purified and distilled. The distillates obtained were divided into two temperature ranges of 60 - 210°C and 210 - 310°C.
A. T. Abdulrahim +2 more
doaj
Journal of Applied Toxicology, EarlyView.ABSTRACT Parabens (PBs) are compounds widely used as preservatives in personal care products, food, and pharmaceuticals. Methylparaben (MePB) is the most used by different industries due to its chemical properties and low cost. The high daily human exposure to these compounds has raised concerns about their potential effects on health, particularly on ...
Yenny Ramírez‐Jara +11 more
wiley +1 more source
Microscopy Research and Technique, EarlyView.Assessment of Restoring Chemically Damaged Hair Fibers Using Microscopy and Spectroscopy. ABSTRACT This paper analyses hair restoration products currently on the market that treat chemically processed hair. This study measured the restoration of structural integrity in hair samples from both chemically damaged hair (chemically relaxed, bleached, and ...
L. P. A. Mauricio +2 more
wiley +1 more source