Results 91 to 100 of about 272,609 (317)

The value of dynamic subtraction MRI technique in the assessment of treatment response of hepatocellular carcinoma to transcatheter arterial chemoembolization

The Egyptian Journal of Radiology and Nuclear Medicine, 2019
Background Hepatocellular carcinoma is considered to be the fifth most common cancer worldwide. Resection and liver transplantation have a high survival in the correct clinical scenarios; however, locoregional therapy has many advantages over tumor ...
Lamiaa I. A. Metwally, Bahaa Eldin Mahmoud, Mahmoud Yehia   +2 more
doaj   +1 more source

Sky Subtraction for LAMOST

, 2017
Sky subtraction is the key technique in data reduction of multi-fiber spectra. Knowledge of the related instrument character is necessary to determine the method adopted in sky subtraction.
Bai, Zhong-Rui, Chen, Jian-Jun, Dong, Yi-Qiao, Lei, Ya-Juan, Li, Guang-Wei, Wang, Gang, Yang, Hui-Qin, Yuan, Hai-Long, Zhang, Hao-Tong, Zhao, Yong-Heng   +9 more
core   +1 more source

Quality Enhancement of Laser Powder‐Bed Fusion Parts by Acoustically Assisted Additive Manufacturing by Laser Powder‐Bed Fusion and its Application to Lattice Structures

Advanced Engineering Materials, EarlyView.
Additive manufacturing technologies like laser powder‐bed fusion offer great design freedom and individualization of products down to a batch size of one. However, parts fabricated with this technology suffer from poor quality. Acoustic assistance during the build process can minimize these drawbacks.
Oliver Maurer, Dirk Bähre
wiley   +1 more source

A Simulative Approach for the Prediction of Mesoscale Residual Stress Fields in Solution‐Strengthened Ferritic Ductile Iron

Advanced Engineering Materials, EarlyView.
This study presents a 3D representative volume element‐based simulation approach to predict mesoscopic residual stress and strain fields in silicon solid solution‐strengthened ductile cast iron. By modeling phase transformation kinetics with an enhanced Johnson–Mehl–Avrami–Kolmogorov model, the effects of varying cooling rates on residual stresses are ...
Lutz Horbach, Oliver Schenk, Valérian Iss, Ali Rajaei, Jiali Zhang, Felix Weber, Christoph Broeckmann   +6 more
wiley   +1 more source

An Evaluation of Background Subtraction for Object Detection Vis-a-Vis Mitigating Challenging Scenarios

IEEE Access, 2016
Background subtraction is a popular technique for detecting objects moving across a fixed camera view. The performance of this paradigm is influenced by various challenges, such as object relocation, illumination change, cast shadows, waving background ...
Suman Kumar Choudhury, Pankaj Kumar Sa, Sambit Bakshi, Banshidhar Majhi   +3 more
doaj   +1 more source

Differential Imaging with a Multicolor Detector Assembly: A New ExoPlanet Finder Concept

, 2004
Simultaneous spectral differential imaging is a high contrast technique by which subtraction of simultaneous images reduces noise from atmospheric speckles and optical aberrations. Small non-common wave front errors between channels can seriously degrade
Doyon, R., Lafreniere, D., Marois, C., Nadeau, D., Racine, R.   +4 more
core   +2 more sources

New Developments in the Field of Production and Application of Multi‐Material Wire Arc Additive Manufacturing Components: A Review

Advanced Engineering Materials, EarlyView.
The utilization of direct energy deposition (DED)‐arc additive manufacturing processes in industrial applications is increasing, and these processes have the potential for multi‐material applications. This work provides a overview of the state of research in DED‐arc made functional graded structures, to establish a link to potential industrial ...
Kai Treutler, Volker Wesling
wiley   +1 more source

Comparative Analysis of Data Efficiency Between Conventional Periapical Radiography and Digital Subtraction Radiography in Chronic Periodontitis Patients

European Annals of Dental Sciences
Purpose: Advancements in technology have driven a shift towards digital techniques alongside conventional screening methods indental radiology and across medical disciplines.
Arzu Alan, Tolga Tözüm, Hilmi Kansu
doaj   +1 more source

Subtraction images: A really helpful tool in non-vascular MRI

The Egyptian Journal of Radiology and Nuclear Medicine, 2014
Background: Subtraction imaging is a technique whereby an unenhanced T1-weighted sequence is digitally subtracted from the identical sequence performed after gadolinium administration.
Mohamed Eid, Ahmed Abougabal
doaj   +1 more source

Depth-selective method for time-domain diffuse reflectance measurements: validation study of the dual subtraction technique. [PDF]

Biomed Opt Express, 2023
Fazliazar E, Sudakou A, Sawosz P, Gerega A, Kacprzak M, Liebert A.   +5 more
europepmc   +1 more source