Results 31 to 40 of about 302,026 (291)

Improvement Viscosity Index of Lubricating Engine Oil Using Low Molecular Weight Compounds

Science Journal of University of Zakho, 2019
the effect of polarity of solvent on the viscosity and viscosity index of lubricating engine oil has been studied using ethanol as an example of polar solvent and toluene as an example of non-polar solvent at different solvent ratios and ambient ...
Shenwar A. Idrees, Lawand L. Mustafa, Sabah S. Saleem   +2 more
doaj   +1 more source

Dual refractive index and viscosity sensing using polymeric nanofibers optical structures [PDF]

, 2019
Porous materials have demonstrated to be ideal candidates for the creation of optical sensors with very high sensitivities. This is due both to the possibility of infiltrating the target substances into them and to their notable surface-to-volume ratio ...
Garcia-Ruperez, Jaime, Kovylina, Miroslavna, Martin-Sanchez, David, Maudes, Jon, Murillo, Nieves, Perez-Marquez, Ana, Ponce-Alcantara, Salvador   +6 more
core   +4 more sources

A synthetic benzoxazine dimer derivative targets c‐Myc to inhibit colorectal cancer progression

Molecular Oncology, EarlyView.
Benzoxazine dimer derivatives bind to the bHLH‐LZ region of c‐Myc, disrupting c‐Myc/MAX complexes, which are evaluated from SAR analysis. This increases ubiquitination and reduces cellular c‐Myc. Impairing DNA repair mechanisms is shown through proteomic analysis.
Nicharat Sriratanasak, Bodee Nutho, Worawat Wattanathana, Narumon Phaonakrop, Bunnatut Panasawatwong, Katharina Erlenbach‐Wuensch, Sittiruk Roytrakul, Regine Schneider‐Stock, Pithi Chanvorachote   +8 more
wiley   +1 more source

Hands‐on protocol for preparing water‐soluble fractions from agri‐food samples for NMR‐based metabolomics analysis

FEBS Open Bio, EarlyView.
This research protocol outlines a workflow for nuclear magnetic resonance (NMR)‐based metabolomics in the agri‐food sector. Using two case studies—strawberry leaves (solid matrix) and wine (liquid matrix)—it details the procedures for sample preparation, data acquisition, and processing.
Andrea Fernández‐Veloso, Jaime Hiniesta‐Valero, Alejandra Guerra‐Castellano, Miguel A. De la Rosa, Irene Díaz‐Moreno   +4 more
wiley   +1 more source

Deterministic Extensional Viscosity and Cracking Index of Polypropylene-Modified-Asphalt Binder

Tikrit Journal of Engineering Sciences, 2020
The extensional viscosity and cracking prospectus of polypropylene modified asphalt cement (PPMAC) was explored. Forty/fifty penetration class asphalt cement with five-contents of polypropylene polymer were chosen.
Abdul-Rahim Ibrahim Al-Hadidy, Zeena Ahmed Al-Kazzaz, Ahmed A. Mohammed Ali   +2 more
doaj   +3 more sources

Viscosity and Liquidity Index Relation for Elucidating Mudflow Behavior [PDF]

, 2013
The mechanism of mudflow, which is a type of mass movement, is different from that of landslide. A landslide has a discrete failure surface, whereas a mudflow has flow characteristics. Hence, the conventional approach of explaining the characteristics of
Lee, S. H. (Shannon), Widjaja, B. (Budijanto)   +1 more
core  

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Synthesis, Characterization, Rheological Behavior and Light Scattering Index of Methacrylate Copolymers [PDF]

Iranian Journal of Chemistry & Chemical Engineering
In the present study, a series of methacrylate-based homo- and co-polymers were synthesized and their efficiency as viscosity index improvers, rheological behavior, and light scattering index were investigated.
Mehrdad Jalilian, Farshid Ziaei
doaj   +1 more source

Production of cellulose nanocrystals extracted from Pennisetum purpureum fibers and its application as a lubricating additive in engine oil

Heliyon, 2022
In the present work, cellulose nanocrystals (CNCs) were successfully produced from the Pennisetum purpureum (PP) fibers through ammonium persulfate (APS) oxidation.
Rajendra Aryasena, Kusmono, Nafiatul Umami   +2 more
doaj   +1 more source

Influence of viscosity and the adiabatic index on planetary migration

, 2013
The strength and direction of migration of low mass embedded planets depends on the disk's thermodynamic state, where the internal dissipation is balanced by radiative transport, and the migration can be directed outwards, a process which extends the ...
Bitsch, B., Boley, A., Kley, W.
core   +1 more source