Results 111 to 120 of about 888,059 (303)

Twin-Photon Confocal Microscopy

, 2010
A recently introduced two-channel confocal microscope with correlated detection promises up to 50% improvement in transverse spatial resolution [Simon, Sergienko, Optics Express {\bf 18}, 9765 (2010)] via the use of photon correlations.
A. V. Sergienko, D. S. Simon, Denk, Denk, Heintzmann, Lukosz, Pittman, Sheppard, Simon, Török, Török, Török, Wilson   +12 more
core   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source

Microscope Integrated Intraoperative Optical Coherence Tomography-Guided DMEK in Corneas with Poor Visualization

Clinical Ophthalmology, 2020
Namrata Sharma, Pranita Sahay, Prafulla K Maharana, Praveen Kumar, Saima Ahsan, Jeewan S Titiyal Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, IndiaCorrespondence: Namrata SharmaDepartment of ...
Sharma N, Sahay P, Maharana PK, Kumar P, Ahsan S, Titiyal JS   +5 more
doaj  

Recent Progress in Optical Biosensors Based on Smartphone Platforms

Sensors, 2017
With a rapid improvement of smartphone hardware and software, especially complementary metal oxide semiconductor (CMOS) cameras, many optical biosensors based on smartphone platforms have been presented, which have pushed the development of the point-of ...
Zhaoxin Geng, Xiong Zhang, Zhiyuan Fan, Xiaoqing Lv, Yue Su, Hongda Chen   +5 more
doaj   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Assessment of three-dimensional biofilm structure using an optical microscope

BioTechniques, 2007
A method allowing the evaluation of the structure and the calculation of the volume of a biofilm, using an optical microscope, is proposed based on the linear relation between the intensity of a pixel in biofilm images grabbed on the x-y plane and the ...
Carla C.C.R. de Carvalho, M. Manuela R. da Fonseca   +1 more
doaj   +1 more source

3D Printing a Low-Cost Miniature Accommodating Optical Microscope. [PDF]

Adv Mater, 2023
Hai R, Shao G, Ware HOT, Jones EH, Sun C.   +4 more
europepmc   +1 more source

Study of a quasi-microscope design for planetary landers [PDF]

The Viking Lander fascimile camera, in its present form, provides for a minimum object distance of 1.9 meters, at which distance its resolution of 0.0007 radian provides an object resolution of 1.33 millimeters.
Brown, E. B., Giat, O.
core   +1 more source

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

Advanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar, David Osman Busse, Maximilian Sprengel, Domenico Furfari, Marc‐André Nielsen, Guilherme Abreu Faria, Jérémy Epp   +6 more
wiley   +1 more source

Process‐Informed Analysis of As‐Built Metal Additive Surface Features

Advanced Engineering Materials, EarlyView.
This article introduces a novel method for feature‐based surface texture characterisation directly incorporating manufacturing variables into the feature extraction workflow. This marks a major step towards identifying process‐specific surface properties and their influence on part function and hence a holistic understanding of process–structure ...
Theresa Buchenau, Adam Thompson, Hauke Brüning, Marc Amkreutz, Bernd Mayer, Samanta Piano   +5 more
wiley   +1 more source