Results 111 to 120 of about 764,518 (300)

Evaluation of the dentinal wall adaptation ability of Mineral Trioxide Aggregate Fillapex, EndoSequence BC, and AH Plus sealers using Scanning Electron Microscope: An in vitro study

Endodontology
Aim: The present study was conducted to evaluate the dentinal wall adaptation ability of different root canal sealers (mineral trioxide aggregate Fillapex [MTA], EndoSequence BC [ESBC] Sealer, and AH Plus) using a scanning electron microscope (SEM ...
Pradipkumar R. Damor, Rajendra Kumar Tewari, Surendra Kumar Mishra, Syed Mukhtar-Un-Nisar Andrabi   +3 more
doaj   +1 more source

A simplified focusing and astigmatism correction method for a scanning electron microscope

AIP Advances, 2018
Defocus and astigmatism can lead to blurred images and poor resolution. This paper presents a simplified method for focusing and astigmatism correction of a scanning electron microscope (SEM). The method consists of two steps. In the first step, the fast
Yihua Lu, Xianmin Zhang, Hai Li
doaj   +1 more source

Generation of 1180 Å period gratings with a Xe ion laser [PDF]

, 1988
Holographic lithography with the 2315 Å line of a xenon ion laser is used to produce gratings in polymethylmethacrylate. An 1180 Å period grating is made and examined with a scanning electron microscope (SEM).
Bridges, W. B., Hoenk, M. E., Vahala, K., Yariv, A., Zarem, H. A.   +4 more
core  

Interpretable and efficient contrast in scanning transmission electron microscopy with a diffraction grating beamsplitter

, 2018
Efficient imaging of biomolecules, 2D materials and electromagnetic fields depends on retrieval of the phase of transmitted electrons. We demonstrate a method to measure phase in a scanning transmission electron microscope using a nanofabricated ...
Chess, Jordan J., Ciston, Jim, Ercius, Peter, Feng, Wenchun, Harvey, Tyler R., Kotov, Nicholas A., McMorran, Benjamin J., Ophus, Colin, Pierce, Jordan S., Reis, Roberto M. S. dos, Yasin, Fehmi S., Özdöl, Vasfi Burak   +11 more
core   +1 more source

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

Advanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu, Xun Zhang, Jack M. Donoghue, Albert D. Smith, Rahul Unnikrishnan, Rhys Thomas, Vahid Nekouie, Jie Luo, Dongchen Hu, Michael Preuss, Philip J. Withers   +10 more
wiley   +1 more source

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

Advanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni, Thalita Marcolan Valverde, Talita Martins, Guilherme Mattos Jardim Costa, Alfredo Miranda de Goes, Marcello Rosa Dumont, Eduardo Henrique Martins Nunes, Marivalda de Magalhães Pereira   +7 more
wiley   +1 more source

Nature of well-defined conductance of amine anchored molecular junctions

, 2007
Amine terminated molecules show well behaved conductance in the scanning tunneling microscope break-junction experimental measurements. We performed density functional theory based electron transport calculations to explain the nature of this phenomenon.
Kosov, D. S., Li, Zhenyu
core   +1 more source

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

Advanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov, Oleksandr Bobukh, Christian Klose, Florian Nürnberger, Hans Jürgen Maier   +4 more
wiley   +1 more source

Advances in Modeling of Scanning Charged-Particle-Microscopy Images

, 2010
Modeling artificial scanning electron microscope (SEM) and scanning ion microscope images has recently become important. This is because of the need to provide repeatable images with a priori determined parameters.
Cizmar, Petr, Postek, Michael T., Vladar, Andras E.   +2 more
core   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source