Results 41 to 50 of about 1,444 (255)

EFFECT OF POLYETHYLENE MOLECULAR MASS CHARACTERISTICS ON SLIP EFFECT

Тонкие химические технологии, 2016
The rheological properties of polyethylene with different molecular weight characteristics were studied. Difference of molecular weight characteristics was found on the basis of melt flow index, and slip effect in the molten polyethylene flow was studied.
A. A. Yurkin, I. D. Simonov-Emelyanov, P. V. Surikov, N. L. Shembel   +3 more
doaj   +1 more source

Fatigue performance evaluation of bitumen mastics reinforced with polyolefins through a dissipated energy approach

Materiales de Construccion, 2020
Polymers are known to improve the fatigue resistance of sphalt mastics. However, undesirable results can be obtained if the polymer is not successfully integrated into the bitumen binder. The goal of this work is to evaluate the effect of the addition of
C. Roman, M. A. Delgado, M. García-Morales   +2 more
doaj   +1 more source

Study on bonding ability of melt-spun polypropylene/polyethylene blend fibers

Journal of Industrial Textiles, 2022
This article investigates melt spinning of polypropylene (PP) with high-density polyethylene (HDPE) and linear low-density polyethylene (LLDPE) blend fibers at different compositions, as well as the effects of HDPE and LLDPE on the bonding ability of ...
Tomik Moradi, Mirhadi Seyed Esfahani, Hamid Ebrahimi, Ali Khosroshahi, Siyamak Safapour   +4 more
doaj   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source

An Evaluation of Dilution Rheology for the Characterization of Long Chain Branching of Polyethylenes

Applied Rheology, 2006
The purpose of this paper was to re-evaluate the novel rheological method of Crosby et al. [J. Rheol. 46 (2002) 401] to characterise long chain branching (LCB) in polyethylenes (PE) using the rheology of concentrated solutions.
Chai Choon K., Ang Swe Chong
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

Decoding the dynamic extracellular matrix in cancer—3D models and bioscaffolds rewire the rules of tumor progression

FEBS Letters, EarlyView.
Cancer progression is regulated by the dynamic matrix code of the tumor microenvironment, which influences cellular behavior and disease development. Importantly, matrix remodeling in three‐dimensional cancer models more accurately reflects in vivo conditions compared to conventional two‐dimensional systems.
Sylvia Mangani, Konstantinos Spanopoulos, Zoi Piperigkou, Nikos K. Karamanos   +3 more
wiley   +1 more source

Tribological and oxidational properties of porous high-pressure crystallized and vitamin E–incorporated ultra-high-molecular weight polyethylene as an artificial cartilage

Advances in Mechanical Engineering, 2015
The material properties of porous high-pressure crystallized ultra-high-molecular weight polyethylene containing vitamin E as a plasticizing agent and an antioxidant were studied.
Chau-Chang Chou, Yang-Zhi Wang, Jyun-Hao You, Cheng-Lun Wu   +3 more
doaj   +1 more source

Effect of Palmitic Acid in the Acceleration of Polyethylene Biodegradation by Aspergillus oryzae

Journal of Pure and Applied Microbiology, 2018
The biodegradation of High Density Polyethylene (HDPE) and Low Density Polyethylene (LDPE) by Aspergillus oryzae was examined in the current study. The optimal temperature, pH, favorable carbon and nitrogen sources for organism growth were determined ...
Vijayasree Jayaprakash, Uma Maheswari Devi Palempalli   +1 more
doaj   +1 more source

Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies

FEBS Open Bio, EarlyView.
We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli, Mohammad Nour Alsamsam, Ugnė Bagdonaitė, Van Truc Vu, Chun‐Jen Huang, Polina Kuzhir, Mindaugas Zaremba, Aurimas Kopūstas, Marijonas Tutkus   +8 more
wiley   +1 more source