Results 111 to 120 of about 408,815 (293)

implants

, 2009
OBJECTIVE: To investigate implant stability using resonance frequency measurements of topographically changed and/or surface chemistry-modified implants in rabbit bone.MATERIAL AND METHODS: Six groups of microstructured, screw-shaped titanium implants ...
Johansson, C, Sul, Y-T, Sul, Young-Taeg, Goui‐Seong Yoon, Yoon, G-S, Young‐Taeg Sul, Yoon, G.S., Johansson, Carina B.,, Jonsson, J., Carina Johansson, Jonsson, J, Jörgen Jönsson   +11 more
core   +1 more source

Parity‐Dependent THz Harmonic Generation in Electrically Pumped Micro‐Lasers Exploiting Topological Insulator–Metamaterial Gratings

Advanced Materials, EarlyView.
Topological insulator–metamaterials integrated with electrically driven terahertz quantum cascade lasers enable parity‐dependent harmonic generation. Bulk‐dominated Bi2Se3 favors third‐harmonic emission at 9.96 THz, whereas topological‐surface‐state‐dominated Bi2Se3, Bi2Te3, and (Bi,Sb)2Te3 generate strong second harmonics near 6.5 THz.
Alessandra Di Gaspare, Craig S. Knox, Ahmet Yagmur, Sara Ghayeb Zamharir, Lianhe Li, Satoshi Sasaki, A. Giles Davies, Edmund H. Linfield, Joshua R. Freeman, Miriam S. Vitiello   +9 more
wiley   +1 more source

Tamper‐Responsive Physical Unclonable Functions via Graphene‐Interlayered Block Copolymer Random Structures

Advanced Materials, EarlyView.
Self‐invalidating multilayer physical unclonable functions (PUFs) integrate fingerprint‐like metal nanopattern bilayers from block copolymer templates with highly reactive reduced graphene oxide (rGO) interlayers. This tamper‐responsive architecture blocks all unauthorized physical and chemical replication attempts while autonomously deactivating ...
Gyu Hui Jo, Dae Hui Park, Jeong‐Ho Jang, Woo Seok Tack, Jin Man Kim, Hak Ki Yu, Hyeong Min Jin, Jang Hwan Kim   +7 more
wiley   +1 more source

Interface‐Mediated Catalysis for Improved Hydrogen Storage in Reactive Hydride Composites

Advanced Materials, EarlyView.
Catalyst–hydride interfaces are engineered in Co@C‐ and Ni@C‐modified 2LiH + MgB2 reactive hydride composites to accelerate hydrogen uptake and release. Multiscale scattering, in‐situ synchrotron radiation powder x‐ray diffraction and density functional theory calculations reveal the structural and electronic origin of the catalytic enhancement ...
Yuanyuan Shang, Pawan Kumar Soni, Han Ge, Weijie Yang, Fahim Karimi, Thi Thu Le, Tamás Simon, Michael Fröba, Jitendra Mata, Joshua King, Hai‐Wen Li, Thomas Klassen, Claudio Pistidda   +12 more
wiley   +1 more source

Orbital ordering in the layered manganites [PDF]

, 2006
The interaction between the long range correlations of electrons and the encompassing crystal structure is a key aspect of solid state physics. This thesis studies the long range interactions of the 3D orbitals in the single and bilayered manganites ...
Beale, Thomas ? W, Beale, Thomas Α. W.
core  

Extra-oral implants: insertion per- or post-ablation?

, 2011
Contains fulltext : 97907.pdf (Publisher’s version ) (Open Access)Although the benefit of extra-oral implants in the reconstruction of maxillofacial oncological defects is undisputable, some relevant issues need to be clarified.
Klevering, B.J., M.A. Merkx, Merkx, M.A.W., Muradin, M.S., B.J. Klevering, J.P.J. Dings, K.J. Ingels, M.S. Muradin, Dings, J.P., R. Koole, Maal, T.J.J., G.J. Meijer, Meijer, G.J., Koole, R.A., T.J. Maal, Ingels, K.J.A.O.   +15 more
core   +1 more source

Giant Anisotropic Spin Absorption in Chiral Hybrid Semiconductors

Advanced Materials, EarlyView.
Researchers uncover that chiral hybrid organic–inorganic semiconductors absorb spin differently depending on its polarization direction. This anisotropic spin absorption is primarily driven by the local symmetry breaking within the layered structure.
Cong Yang, Rui Sun, Mingwei Ge, Shehzad Khan, Subhrangsu Mukherjee, Matthew P. Hautzinger, Tianyou Lu, Harald Ade, Pius M. Theiler, Matthew C. Beard, Dali Sun, Mengxia Liu, Jun Liu   +12 more
wiley   +1 more source

Orbital pseudotumour masquerading as Wegener’s granulomatosis [PDF]

, 2015
A twenty-two year old female patient presented with new onset bilateral hard orbital masses and progressively worse tear lake problems. Computed tomography of the orbits revealed poorly differentiated bilateral orbital masses.
Fenech, Matthew T., Fenech, Thomas
core  

Oxidized, bioactive implants are rapidly and strongly integrated in bone : Part 1 - experimental implants

, 2006
Objectives: The study presented was designed to investigate the speed and the strength of osseointegration of oxidized implants at early healing times in comparison which machined, turned implants.
Jeong, Yongsoo, Albrektsson, Tomas, Sul, Young-Taeg,, Sul, Young-Taeg, Johansson, Carina B.,, Albrektsson, Tomas,, Johansson, Carina B,   +6 more
core   +1 more source

High‐Mobility Chalcogenophene‐Engineered Diketopyrrolopyrrole Mixed Ionic‐Electronic Conductors With Doping Tolerance for Low‐Power Organic Electrochemical Transistors

Advanced Materials, EarlyView.
Chalcogen substitution emerges as a powerful strategy for designing high‐performance OMIECs. In aliphatic–glycol side chain diketopyrrolopyrrole polymers, biselenophene incorporation promotes a planar, polarizable, and doping‐tolerant quinoidal framework, enabling PDPP‐4EG‐Se2 to combine high hole mobility, large µC*, enhanced operational stability ...
Shinbee Oh, Tae Hoon Kim, Dahyun Jeong, Ji Hwan Kim, Seungjin Lee, Tan Ngoc‐Lan Phan, Alexander Tipan‐Quishpe, Myung‐Han Yoon, Keehoon Kang, Bumjoon J. Kim   +9 more
wiley   +1 more source