Results 141 to 150 of about 5,614,148 (333)

Efficacy of light curing sources and different dentin bonding agents on microleakage of class II resin composite restorations

مجله دانشکده دندانپزشکی اصفهان, 2007
Introduction: By increase of esthetic demand, application of resin composite as a posterior restoration is greater than before. Microleakage and post operative sensitivity are two challenges to the success of this filling material. To overcome these, the
M Barekatein, P Mirzakoochaky
doaj  

Analytical and experimental investigation of rubbing interaction in labyrinth seals for a liquid hydrogen fuel pump [PDF]

Cracking of the titanium knife edges on the labyrinth seals of the liquid hydrogen fuel pump in the Space Shuttle main engine is considered. Finite element analysis of the thermal response of the knife edge in sliding contact with the wear ring surface ...
Dolan, F. X., Kennedy, F. E., Schulson, E. M.   +2 more
core   +1 more source

Modulating Electrochemical CO2 Reduction Pathways via Interfacial Electric Field

Advanced Functional Materials, EarlyView.
Engineering interfacial electric fields in Cu/ITO electrodes enables precise control of CO2 reduction pathways. Charge transfer from Cu to ITO generates positively charged Cu species that steer selectivity from ethylene toward methane. This work demonstrates how interfacial electric‐field modulation can direct reaction intermediates and transform ...
Mahdi Salehi, Zhengyuan Gao, Sai Phani Kumar Vangala, Amirhossein Farzi, Hamed Heidarpour, Morgan McKee, Nikolay Kornienko, Ali Seifitokaldani   +7 more
wiley   +1 more source

Rapid photo‐responsive dynamic disulfide strategy for accessing self‐healing, reconfigurable shape of high‐strength shape memory polyurethane

Responsive Materials
Enabling soft shape memory polyurethane (SMPU) with self‐healing is an effective strategy to extend its service life; however, the tradeoff between high mechanical strength and rapid self‐healing to meet the practical applications remains a challenge ...
Qingxiang Zhang, Jing Yang, Kai Zhou, Nan Zhang, Xianqiang Pei, Xinrui Zhang, Shoubing Chen, Heming Luo, Tingmei Wang, Qihua Wang, Yaoming Zhang   +10 more
doaj   +1 more source

Pitting and Repair of the Space Shuttle's Inconel(Registered TradeMark) Honeycomb Conical Seal Panel [PDF]

, 2006
During return to flight servicing of the rudder speed brake (RSB) for each Space Shuttle Orbiter, inspectors discovered numerous small pits on the surface of the #4 right hand side honeycomb panel that covers the rudder speed brake actuators.
Bright, Mark L., Gentz, Steven J., MacKay, Rebecca A., Miller, James B., Zimmerman, Frank R.   +4 more
core   +1 more source

Emergence of Light‐Transforming Layered Hybrid Halide Perovskites

Advanced Functional Materials, EarlyView.
The emerging class of light‐transforming layered halide perovskite materials is reviewed, outlining challenges for their development and perspectives toward application in the future. Abstract Layered hybrid halide perovskites (LHPs) have attracted considerable attention in optoelectronics.
Ghewa AlSabeh, Jovana V. Milić
wiley   +1 more source

CRISPR/Cas9‐Assisted Microrobots for Fast and Ultrasensitive “On‐The‐Fly” Next‐Generation DNA Detection

Advanced Functional Materials, EarlyView.
This work presents self‐propelled CRISPR/Cas9‐functionalized Au–MRs for rapid, amplification‐free, “on‐the‐fly” DNA detection. By harnessing motion‐assisted signal recovery, the platform achieved the limit of detection in low fM DNA concentrations, enabling detection across a wide dynamic range within only 5 min, which is significantly faster than any ...
Jyoti, Petr Michálek, Zbyněk Heger, Martin Pumera   +3 more
wiley   +1 more source

Selective and Precise Editing of Digital Polymers Through Parallel or Series Toehold‐Mediated Strand Displacement

Advanced Functional Materials, EarlyView.
A sequence‐encoded supramolecular construct containing two accessible toeholds is developed herein for enabling multiple editing operations. By introducing specific input strands, it is possible to selectively erase or rewrite digital content through parallel or series toehold‐mediated strand displacement (PTMSD or STMSD).
Jakub Ossowski, Cyril Antheaume, Jean‐François Lutz, Maria Nerantzaki   +3 more
wiley   +1 more source

Patterns in spatial proximity between venture capital investors and investees in Germany: an empirical analysis [PDF]

The paper analyzes patterns in spatial proximity between venture capital investors and investees. We use a data set of 950 dyads of venture capitalists and German new ventures which have closed a financing round between January 2002 and March 2007.
Bender, Marko, Lutz, Eva
core  

Electroactive Metal–Organic Frameworks for Electrocatalysis

Advanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska, Yutong Luo, Ruyan Zhao, Jianjun Zhang, Mingchao Wang, Xinliang Feng, Eike Brunner, Stefan Kaskel   +7 more
wiley   +1 more source