Results 21 to 30 of about 187,953 (335)

Grease ice in basin-scale sea-ice ocean models [PDF]

, 2015
The first stage of sea-ice formation is often grease ice, a mixture of sea water and frazil ice crystals. Over time, grease ice typically congeals first to pancake ice floes and then to a solid sea-ice cover.
Martin, Torge, Smedsrud, Lars H.
core   +1 more source

Tribology of polypropylene and Li-complex greases with ZDDP and MoDTC additives [PDF]

, 2017
The influence of thickener and additive interactions on grease lubricating performance is examined. Polypropylene and lithium complex thickened (Li-complex) greases were tested both as neat greases and with a 2 wt% addition of ZDDP and/or MoDTC.
Glavatskih, Sergei, Harris, Kathryn, Leckner, Johan, Munavirov, Bulat, Shu, Ju, Westbroek, Rene   +5 more
core   +2 more sources

Exploring The Co-composting Potentials of Raw Grease Trap and Grease Trap-Derived Soaps: Insights into Grease Trap Modification, Calcium Supplementation, and Microbial Community Analysis

Applied Environmental Research
Managing waste with grease traps poses a challenge because of the potential environmental issues associated with its disposal. In this study, two approaches were investigated to increase the biodegradability of grease trap waste: 1) converting raw grease
Pokchat Chutivisut, Panaya Kotchaplai , Bualuang Faiyue, Nattapong Tuntiwiwattanapun   +3 more
doaj   +1 more source

Formulation of fumed silica grease from waste transformer oil as base oil

Egyptian Journal of Petroleum, 2019
This study aimed to formulate fumed silica (FS) grease using waste transformer oil (WTO) and to investigate the grease properties. Various unexplored application of the reused WTO due to its reusable characteristic.
N. Suhaila A. Japar, M. Aizudin A. Aziz, Mohd Najib Razali   +2 more
doaj   +1 more source

Numerical analysis of dam breaking behavior of Bingham pseudoplastic fluid by using the explicit MPS method

Nihon Kikai Gakkai ronbunshu, 2019
Grease lubrication in ball bearings is one of key technologies to reduce energy consumption and enhance lifetime in design of spacecrafts as well as general industrial machineries.
Hideyo NEGISHI, Hiroaki AMAKAWA, Kazuaki MANIWA, Shingo OBARA, Makoto HAYAMA, Daming DONG   +5 more
doaj   +1 more source

On the Relation between Friction Increase and Grease Thickener Entraining on a Border of Mixed EHL Lubrication

Lubricants, 2020
This paper deals with an experimental study of film thickness and friction of commercial-grade grease and its base oil in a highly loaded contact. In-situ measurements were conducted for two surface textures on a ball-on-disc optical tribometer at the ...
Tomas Zapletal, Petr Sperka, Ivan Krupka, Martin Hartl   +3 more
doaj   +1 more source

Classification and spectrum optimization method of grease based on infrared spectrum

Friction, 2023
The infrared (IR) absorption spectral data of 63 kinds of lubricating greases containing six different types of thickeners were obtained using the IR spectroscopy.
Xin Feng, Yanqiu Xia, Peiyuan Xie, Xiaohe Li   +3 more
doaj   +1 more source

Unprecedented Spin‐Lifetime of Itinerant Electrons in Natural Graphite Crystals

Advanced Functional Materials, EarlyView.
Graphite exhibits extraordinary spintronic potential, with electron spin lifetimes reaching 1,000 ns at room temperature ‐ over 100 times longer than graphene‐based devices. Magnetic resonance spectroscopy reveals strong anisotropy: out‐of‐plane spins live 50 times longer than their in‐plane counterparts.
Bence G. Márkus, Dávid Beke, Lili Vajtai, András Jánossy, László Forró, Ferenc Simon   +5 more
wiley   +1 more source

THERMAL STABILITY STUDY OF GREASE FORMULATED FROM INDUSTRIAL WASTE OIL

Platform, a Journal of Engineering, 2020
This is aimed to investigate the effect of additives on thermal stability of grease formulated with waste transformer oil (WTO). One of the key factors of grease functionality is thermal stability.
W. Rahman, Mohd Aizuddin Abdul Aziz, Norasiha Hamid, N.S.A. Japar   +3 more
doaj  

Polyferrocene‐Based Cubosomes: Conversion to Magnetic Mesoporous Microparticles, Supramolecular Modification, and Oxidation Response

Advanced Functional Materials, EarlyView.
Polyferrocene block copolymers are synthesized and assembled into micron‐sized polymer cubosomes with double diamond lattice and pore diameter of ≈30 nm. The ferrocene functionality is retained within the polymer cubosome wall as demonstrated on supramolecular modification, and oxidative disassembly.
Chin Ken Wong, Suna Azhdari, Marvin Foith, Chen Chen, André H. Gröschel   +4 more
wiley   +1 more source