Results 51 to 60 of about 16,728 (257)

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Frugal Innovation for Inclusive and Sustainable Development in Africa

Advanced Research in Economics and Business Strategy Journal
Frugal innovation has emerged as a promising approach to addressing the unique challenges and resource constraints African communities face. This article presents a comprehensive analysis of the key principles, frameworks, and case studies of frugal ...
Pitshou Moleka
doaj   +1 more source

Pyramid-based Image Enhancement of Fingerprints

2007 IEEE Workshop on Automatic Identification Advanced Technologies, 2007
Reliable feature extraction is crucial for accurate biometric recognition. Unfortunately feature extraction is hampered by noisy input data, especially so in case of fingerprints. We propose a method to enhance the quality of a given fingerprint with the purpose to improve the recognition performance.
Hartwig Fronthaler, Klaus Kollreider, Josef Bigün   +2 more
openaire   +3 more sources

Role of Intrinsic Electron Trapping in Negative Charging of Amorphous Alumina

Advanced Functional Materials, EarlyView.
Intrinsic electron trapping in amorphous Al2O3 is examined using hybrid‐DFT models spanning a wide density range. Both spontaneous and thermally activated trapping are identified, with pronounced spontaneous localization in dense, partly crystallized structures.
Jack W. Strand, Kaja H. Hiorth, David Gao, Valeri Afanas'ev, Jaakko Akola, Alexander L. Shluger   +5 more
wiley   +1 more source

Effective lifetime of minority carriers in black silicon nano-textured by cones and pyramids

Semiconductor Physics, Quantum Electronics & Optoelectronics, 2017
We calculated the dependence of effective lifetime of minority carriers in black silicon nano-textured by cones and pyramids on the diameter of the cone base, the side of the pyramid base, the height of cone and pyramid.
V.F. Onyshchenko, L.A. Karachevtseva, O.O. Lytvynenko, M.M. Plakhotnyuk, O.J. Stronska   +4 more
doaj   +1 more source

Innovation at the Base of the Pyramid

, 2014
Contains fulltext : 131861.pdf (Publisher’s version ) (Open Access)
Vermeulen, P.A.M., Curşeu, P.L., Soers, B.   +2 more
openaire   +2 more sources

Design Strategies and Emerging Applications of High‐Performance Flexible Piezoresistive Pressure Sensors

Advanced Functional Materials, EarlyView.
Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo, Artur Ciesielski, Paolo Samorì   +2 more
wiley   +1 more source

Prakti Design : le défi de la combustion propre pour les populations pauvres

Field Actions Science Reports, 2013
Three billion people rely on open fire or polluting and non-efficient biomass stoves for cooking and heating. These households, mostly women and young children, are exposed to harmful indoor air pollution. This is the fourth mortality cause in the world,
Jérôme Bossuet, Mouhsine Serrar
doaj  

3D Printing Innovations in Polymeric Porous and Patterned Architecture

Advanced Functional Materials, EarlyView.
Polymeric foams occupy a unique structural space between dense solids and open networks, where engineered void fraction governs mechanical compliance, thermal resistance, and mass transport. Additive manufacturing now enables precise spatial control over cellular architecture, unlocking designer foam structures across applications spanning crash ...
Dhanush Patil, Sri Vaishnavi Thummalapalli, Clarissa Westover, Arunachalam Ramanathan, M. Taylor Sobzcak, Roumika Patil, Qixuan Xiang, Tiantian Li, Sui Yang, Timothy E. Long, Hongyue Sun, Xianqiao Wang, Yang Liu, Kenan Song   +13 more
wiley   +1 more source

JITA Social Business Bangladesh Limited: Reaching the unreachable in Bangladesh

Field Actions Science Reports, 2014
This article analyses how the NGO Care has created with various stakeholders a new social enterprise –JITA.  By integrating distribution channel, market creation model, research initiative and multi dimensional partnerships JITA is exploring a powerful ...
Saif Rashid
doaj