Results 101 to 110 of about 2,171,811 (276)

Adaptive 4D‐Printed Vascular Stents With Low‐Temperature‐Activated and Intelligent Deployment

Advanced Functional Materials, EarlyView.
Microarchitected coronary artery stents were fabricated using a polycaprolactone (PCL)‐based shape memory polymer (SMP) composite via projection micro‐stereolithography (PµSL) 4D printing. By incorporating diethyl phthalate (DEP) as a plasticizer, the thermal transition temperature (Ttran) was modulated to about 37°C, enabling rapid and autonomous ...
Yannan Li, Yifan Pan, Chikahiro Imashiro, Chaolun Xu, Jianxian He, Jingao Xu, Kewei Song, Ze Zhang, Chen Gao, Junbo Jiang, Runhuai Yang, Kayo Hirose, Shinjiro Umezu   +12 more
wiley   +1 more source

When a Fish is a Fish: The Economic Impacts of Escaped Farmed Fish [PDF]

The escape of cultured fish from a marine aquaculture facility is a type of biological invasion that may lead to a variety of potential ecological and economic effects on native fish. This paper develops a general invasive species impact model to capture
Anders Skonhoft, Jon Olaf Olaussen, Yajie Liu   +2 more
core  

Introducing Pure Calcium Orthophosphate Gels and Aerogels

Advanced Functional Materials, EarlyView.
The synthesis of calcium phosphate‐based gels and aerogels is reported, which exhibit highly porous structures built up of networks of nanoparticles. In case of amorphous aerogels, this leads to yet unmatched specific BET surface areas, making these materials especially interesting for biomedical applications.
Oliver Jeske, Dominik Zanker, Nina Ehlert, Bing‐Qiang Lu, Denis Gebauer   +4 more
wiley   +1 more source

Process security methods and measurement in the context of standard management systems

Engineering Management in Production and Services
The main purpose of the paper is to identify ways to establish process security in the constantly changing risk and control environment and to introduce a new model. The research is based on a literature review of process security components. Qualitative
Kemendi Agnes, Michelberger Pal
doaj   +1 more source

A method to determine the kink resistance of stents and stent delivery systems according to international standards

Current Directions in Biomedical Engineering, 2016
The kink behavior of vascular stents is of particular interest for clinicians, stent manufacturers and regulatory as a kinked stent generates a lumen loss in the stented vessel and can lead to in-stent restenosis.
Brandt-Wunderlich Christoph, Schwerdt Christopher, Behrens Peter, Grabow Niels, Schmitz Klaus-Peter, Schmidt Wolfram   +5 more
doaj   +1 more source

Using the Photostationary State of Arylazopyrazoles to Control Phase Transitions of Liquid Crystals

Advanced Functional Materials, EarlyView.
A series of new arylazopyrazole photoswitches is designed as dopants for liquid crystalline materials. Unprecedented, the distribution of photoisomers at the photostationary state upon irradiation with light of specific wavelengths (365, 460, 520 nm) is used to control the liquid crystalline phase transitions under isothermal conditions, including ...
Tobias Thiele, Kristina Hrybenko, Christoph Wölper, Michael Giese   +3 more
wiley   +1 more source

Financial incentives and study duration in higher education [PDF]

The current paper investigates to which extent students in higher education respond to financial incentives by adjusting their study behavior. Students in Norway who completed certain graduate study programs between 1991 and 1995 on stipulated time were ...
Lars J. Kirkebøen, Marte Rønning, Trude Gunnes   +2 more
core  

Overcoming the Stability Issue for Hydrophobic Hole Transporting Layers Utilized in Tin‐Lead Perovskite and Tandem Solar Cells

Advanced Functional Materials, EarlyView.
A non‐annealed process is developed for non‐PEDOT:PSS inverted tin‐lead perovskite solar cells to attain PCE 22.67% for the PTAA‐based device. When PTAA is applied in an all‐perovskite tandem solar cell, a record efficiency of 28.14% is obtained with great stability for the efficiency maintaining 96% of its original value for 500 h under one‐sun ...
Chun‐Hsiao Kuan, Xianyuan Jiang, Qilin Zhou, Xin Wen, Sung‐Fu Hung, Hsin‐Lung Chen, Yun‐Sheng Shih, Sudhakar Narra, Mingyu Ma, Jau‐Wern Chiou, Jhih‐Min Lin, Yi Hou, Eric Wei‐Guang Diau   +12 more
wiley   +1 more source

Quality in Higher Education: a Thoughtful Analysis on the Management of its Processess at Educational Centers of Latin America

Revista Iberoamericana sobre Calidad, Eficacia y Cambio en Educación, 2016
The concept of quality and its establishment within the higher educational institutions imposes a set of requirements that make it a problem to solve. The efforts to reach understanding and assurance have been directed toward the indoctrination of human ...
Manuel Villarruel Fuentes
doaj  

Designing Integrated Conservation and Development Projects (ICDPs): Illegal hunting, wildlife conservation and the welfare of the local people [PDF]

This paper develops a bio-economic model to explore the effect on illegal hunting, wildlife conservation and human welfare of the most common instruments of existing ICDPs.
Anne Borge Johannesen
core