Results 81 to 90 of about 405,511 (346)

CRYSTALLINE RIBONUCLEASE [PDF]

open access: yesJournal of General Physiology, 1940
1. A crystalline enzyme capable of digesting yeast nucleic acid has been isolated from fresh beef pancreas. 2. The enzyme called "ribonuclease" is a soluble protein of albumin type. Its molecular weight is about 15,000. Its isoelectric point is in the region of pH 8.0. 3.
openaire   +2 more sources

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud   +7 more
wiley   +1 more source

Dynamic mechanical analysis and crystalline analysis of hemp fiber reinforced cellulose filled epoxy composite

open access: yesPolímeros
The Dynamic mechanical behavior of chemically treated and untreated hemp fiber reinforced composites was investigated. The morphology of the composites was studied to understand the interaction between the filler and polymer.
Anand Palanivel   +4 more
doaj   +1 more source

Comparison of Cellulose Extraction from Sugarcane Bagasse Through Alkali [PDF]

open access: yesMaterials Research, 2018
This article investigated the cellulose obtained from sugarcane bagasse by five different extraction mercerization methods. The comparison of the methods gives a clearer picture of that is more effective and feasible for production of SCB cellulose.
Zimele Nkosivele Treasure Mzimela   +3 more
doaj   +1 more source

Bimetallic (NiFe) and Trimetallic (NiFeCr) Nanoalloys from Metal Oxides Using a Microwave Hydrogen Plasma

open access: yesAdvanced Engineering Materials, EarlyView.
Bimetallic (NiFe) and trimetallic (NiFeCr) nanoalloys (NAs) are synthesized using corresponding oxide mixtures using microwave hydrogen plasma within a few milliseconds. The process simultaneously 1) reduces metal oxides to metals; 2) downsizes the particles from micrometers to nanometers; and 3) blends the metals to form NAs.
Sachin Kumar   +5 more
wiley   +1 more source

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan   +4 more
wiley   +1 more source

Characterization of microfiber isolated from Hibiscus sabdariffa var. altissima fiber by steam explosion

open access: yesJournal of Natural Fibers, 2020
In this work, the analytical and experimental study on isolation of microfibers from Hibiscus sabdariffa var. altissima fiber using the steam explosion technique is discussed. Structural and thermal analysis of fiber is done by thermogravimetric analysis
Abhilash Karakoti   +4 more
doaj   +1 more source

Nucleophilic Etching Growth of Zeolite Materials with High Tunability

open access: yesAdvanced Materials Interfaces, 2021
Etching growth is widely employed for growing metal species, carving out some of the finest nanocrystals. However, such a general concept has so far evaded the growth of porous crystals.
Lei Dong   +7 more
doaj   +1 more source

Electron-Irradiation Induced Nanocrystallization of Pb(II) in Silica Gels Prepared in High Magnetic Field

open access: yes, 2015
In a previous study, structure of silica gels prepared in a high magnetic field was investigated. While a direct application of such anisotropic silica gels is for an optical anisotropic medium possessing chemical resistance, we show here their ...
Kaito, Chihiro   +2 more
core   +1 more source

Sustainable Synthesis of Bio‐Based Magnetic and Conductive Wood for Electromagnetic Interference Shielding Applications

open access: yesAdvanced Engineering Materials, EarlyView.
A wood‐based magnetic and conductive material called Magwood (MW), capable of blocking almost 99.99% of electromagnetic waves (in the X‐band frequency range), is synthesized using a simple, solvent‐free process. MW is lightweight, resists water, and is flame‐retardant, making it a promising alternative for shielding electronics. The rapid proliferation
Akash Madhav Gondaliya   +3 more
wiley   +1 more source

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