Results 61 to 70 of about 356,978 (308)

Experimental study of sandwich structures as armour against medium-velocity impacts [PDF]

, 2013
An experimental impact study has been conducted on sandwich structures to identify and improve armour solutions for aeronautical applications. The objectives are to find the best configurations, i.e. the non-perforated targets with the minimal weight and
Bouvet, Christophe, Kolopp, Amélie, Rivallant, Samuel   +2 more
core   +3 more sources

Dielectric Barrier Discharge Plasma Deoxidation of Natively Oxide Layer of Copper Powders in a Fluidized Bed

Advanced Engineering Materials, EarlyView.
This paper presents a novel approach to reducing oxide layers on metal powders using low‐temperature hydrogen dielectric barrier discharge plasmas at atmospheric pressure. Unlike conventional hydrogen‐plasma reductions, the powders do not contact the plasma directly.
Shukang Zhang, Annett Wollmann, Thomas Gimpel, Alfred P. Weber   +3 more
wiley   +1 more source

Enhancement of Natural Convection Heat Transfer from a Fin by Circular Perforations

Zhileng xuebao, 2012
Heat transfer enhancement from a horizontal rectangular fin embedded with circular perforations under natural convection is studied. Through the experiment and simulation, the heat dissipation power of different perforated numbers was compared to the ...
Jing Wenjuan, Jian Shizhao, Yin Shugui, Wei Xinli   +3 more
doaj  

Mystery of the lost gallstone‐Part 2

Clinical Case Reports, 2020
If gallbladder perforation occurs during cholecystectomy, every spilled gallstone should be retrieved to minimize possible late gallstone‐related complications.
Konstantinos A. Boulas, Aikaterini Paraskeva, Alexandros Triantafyllidis, Maria Nathanailidou, Konstantinos Chatzipourganis, Anestis Hatzigeorgiadis   +5 more
doaj   +1 more source

Histological and Histomorphometric Evaluation of Applying a Bioactive Advanced Platelet-Rich Fibrin to a Perforated Schneiderian Membrane in a Maxillary Sinus Elevation Model

Frontiers in Bioengineering and Biotechnology, 2020
BackgroundSchneiderian membrane (SM) perforation is a major complication of maxillary sinus elevation with simultaneous bone grafting, yet under this scenario there is no standard biomaterial that maximizes favorable tissue healing and osteogenic effects.
Liangjing Xin, Shuai Yuan, Zhixiang Mu, Dize Li, Jinlin Song, Tao Chen   +5 more
doaj   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

Laparoscopic repair of intra-abdominal bladder perforation in preschool children

Journal of Minimal Access Surgery, 2017
Intraperitoneal bladder rupture is uncommon in very young children, but its incidence may increase with increasing use of seat and lap belts. To the best of our knowledge, there are no prior reports of laparoscopic repair of this injury in children.
Aniruddh V Deshpande, Peter Michail, Parshotam Gera   +2 more
doaj   +1 more source

Differences between computed tomoghaphy and surgical findings in acute complicated diverticulitis [PDF]

, 2019
Summary Background/Objective: A preoperative reliable classification system between clinical and computed tomography (CT) findings to better plan surgery in acute complicated diverticulitis (ACD) is lacking.
Brachini, Gioia, Casciani, Emanuele, Cirillo, Bruno, Costa, Gianluca, Frezza, Barbara, La Torre, Marco, Lanciotti, Silvia, Mastroiacovo, Ilaria, Mingoli, Andrea, Sapienza, Paolo, Speranza, Annarita   +10 more
core   +2 more sources

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

Advanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz, Jonas De Breuck, Sahar Salehi, Meike N. Leiske   +3 more
wiley   +1 more source

Corneal perforation during scleral indentation in a patient with pellucid marginal degeneration

Indian Journal of Ophthalmology, 2016
An observational case report of corneal perforation following scleral indentation in a patient with previously undiagnosed pellucid marginal degeneration is presented.
Karl Mercieca, Aruna Dharmasena, Charles Hopley   +2 more
doaj   +1 more source