Results 81 to 90 of about 331,068 (282)

THE CHOICE OF POLYPROPYLENE ENDOPROSTHESIS FOR ABDOMINAL WALL PLASTY

Вестник хирургии имени И.И. Грекова, 2018
The study (on 27rabbits) of postponed tissue reaction of abdominal wall was done after web space plasty of standard, light and superlight polypropylene endoprostheses on 30th, 60th and 120th days. It was stated, that the standard polypropylene prosthesis
B. S. Sukovatykh, A. V. Ivanov, V. A. Zhukovskiy, T. S. Filipenko, N. M. Valuiskaya, E. V. Gerasimchuk   +5 more
doaj   +1 more source

From Waste to Value: Conversion of Calcium Sulfate to Vaterite via Carbon Capture and Storage

Advanced Functional Materials, EarlyView.
This study introduces a new concept for carbon management that relies on the carbonation of industrial gypsum waste and yields phase‐pure vaterite at ambient conditions without any additives. The obtained vaterite is further shown to be a reactive material that develops compressive strength in aqueous suspensions like conventional cements.
Carlos Pimentel, German Montes‐Hernández, Pablo Almarza‐Cifuentes, Matthias Kellermeier, Alexander E.S. Van Driessche   +4 more
wiley   +1 more source

Low temperature thermal expansivities of polyethylene, polypropylene and their mixtures [PDF]

Low temperature measurements of length- temperature curves of polyethylene, polypropylene, mixtures of polyethylene and polypropylene, and ...
Simha, R., Zakin, J. L.
core   +1 more source

Numerical study of solid particle axial mixing in a fixed cylindrical drum with rotating paddles [PDF]

, 2012
Axial mixture characterization is a wide spread problem in granular particle blending processes such as in an horizontal drum mixer. The homogeneous mixture of particles is obtained by blending the particles via rotating paddles in a fixed cylindrical ...
Bernard, Descales, Fede, Pascal, Neau, Hervé, Simonin, Olivier, Williams, Stephen, Zeren, Zafer   +5 more
core   +2 more sources

The nonlinear time-dependent response of isotactic polypropylene

, 2002
Tensile creep tests, tensile relaxation tests and a tensile test with a constant rate of strain are performed on injection-molded isotactic polypropylene at room temperature in the vicinity of the yield point. A constitutive model is derived for the time-
Aboulfaraj M., Aleksey D. Drozdov, Ariyama T., Ariyama T., Bergström J. S., Boyce M. C., Coulon G., Drozdov A. D., Drozdov A. D., Duan Y., Dutta N. K., Eyring H., Fayolle B., G’Sell C., Haward R. N., Iijima M., Jesper deC. Christiansen, Kalay G., Krempl E., Losi G. U., Lustig S. R., Maiti P., Meyer R. W., Nitta K.-H., Nitta K.-H., Read B. E., Seguela R., Smart J., Staniek E., Sweeney J., Sweeney J., Sweeney J., Tomlins P. E., Verma R., Ward I. M., Wineman A. S., Wortmann F.-J., Zhang X. C.   +37 more
core   +2 more sources

Melt Grafting of Geometry‐Tailored Voltage Stabilizers for High‐Performance Polypropylene Insulation

Advanced Functional Materials, EarlyView.
A scalable one‐step melt grafting strategy is developed to enhance the dielectric properties of isotactic polypropylene by covalently incorporating thermally stable aromatic voltage stabilizers. This solvent‐free approach improves volume resistivity and DC breakdown strength through deep trap formation and charge localization, offering a sustainable ...
Nazirul Mubin bin Normansah, Taehoon Kwon, Hana Kim, Shin‐Ki Hong, Seung Won Lee, Se Hee Lee, Ik‐Su Kwon, Masahiro Kozako, Minhee Kim, Seunggun Yu   +9 more
wiley   +1 more source

Geometry‐Dependent Adhesion in Transparent Monodomain Liquid Crystal Elastomers

Advanced Functional Materials, EarlyView.
Liquid Crystal Elastomers (LCEs) are emerging as exciting pressure‐sensitive adhesives. We examine adhesion in chemically identical elastomer films, exploring the influence of geometry (director orientation) and phase (nematic or isotropic). We demonstrate the potential of these aligned films as transparent, tunable, broad‐temperature‐range smart ...
Aidan Street, Devesh Mistry, Johan Mattsson, Helen F. Gleeson   +3 more
wiley   +1 more source

Dermabond-adhesive glue versus polypropylene sutures for cesarean section-skin closure

Ginekologia Polska
OBJECTIVES: To compare the Dermabond-adhesive glue versus polypropylene sutures for cesarean section (CS) skin closure. MATERIAL AND METHODS: One hundred women admitted for elective CSs (ECSs) were randomized into two groups; Dermabond group including ...
Zainab Abdul Ameer Jaafar, Zhanslu Sarkulova, Ainur Tokshilykova, Ibrahim A. Abdelazim, Marat Sarkulov, Yersulu Sagidanova, Farida Balmaganbetova, Ainur Donayeva   +7 more
doaj   +1 more source

Charge Transport in Ternary Charge‐Transfer Solid Solution Single Crystals

Advanced Functional Materials, EarlyView.
This study deconvolutes the roles of indirect (superexchange) and direct electronic coupling on charge transport in single crystals of an organic charge‐transfer molecular semiconductor (OSC). This model system elegantly demonstrates that structural defects introduced by chemical dopants play a significant role in the electronic performance ...
Jonathan C. Novak, Manikanta Makala, Edith L. MacKenzie, Veaceslav Coropceanu, Kimberly Agosto, Abigail A. Moravek, Oana D. Jurchescu, Ren A. Wiscons   +7 more
wiley   +1 more source

Upgrading properties and circularity of the recycled flexible polypropylene by developing composites with an optimal combination of a fumed silica and maleated polypropylene copolymer: Influence of the addition of copolymer, type of fumed silica and the silica/copolymer ratio on packaging properties

Polymer Testing
Rigid polypropylene is mechanically recycled but flexible polypropylene is mostly used in energetic valorization because of the poor properties of the recycled polymer.
Eliezer Velásquez, Carol López-de-Dicastillo, Cristian Patiño Vidal, Guillermo Copello, C.J. Pérez, Abel Guarda, María José Galotto   +6 more
doaj   +1 more source