Results 31 to 40 of about 929 (113)

A Novel Hybrid Image Segmentation Method for Detection of Suspicious Regions in Mammograms Based on Adaptive Multi-Thresholding (HCOW)

open access: yesIEEE Access, 2021
Suspicious region segmentation is one of the most important parts of CAD systems that are used for breast cancer detection in mammograms. In a CAD system, there can be so many suspicious regions determined for a mammogram because of the complex structure
Guliz Toz, Pakize Erdogmus
doaj   +1 more source

Properties of Composite Resins Early After Curing: Color Stability, Degree of Conversion, and Dimensional Stability

open access: yesInternational Journal of Dentistry, Volume 2025, Issue 1, 2025.
Objectives: This study assessed the degree of conversion (DC), color, and dimensional stability, of three composite resins early after curing. Materials and Methods: This study was conducted on X‐tra fil, Filtek Z250, and Filtek Ultimate composites. To measure DC, the absorption spectra of composites before and after curing (immediately, 15 min, 2 h, 6 
Sahar Amirinejad   +3 more
wiley   +1 more source

Kinematic analysis of a 3-DOF asymmetrical planar parallel robot mechanism

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2018
In this study, kinematic analysis of a planarparallel robot mechanism with three degrees of freedom (DOF) was performed. Thedifference of the selected mechanism from the other planar mechanisms is thatit has an asymmetric leg structure.
Metin Toz
doaj   +1 more source

DEVELOPMENT OF A SERVICE ORIENTED ARCHITECTURE BASED GEOGRAPHIC INFORMATION SYSTEM IN EARTH SCIENCES [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
The studies of recent crustal movements are based on analyses of repeated geodetic measurements, and their combination with results of geophysical and geological investigations.
G. Toz, A. Dogru
doaj   +1 more source

Ventilation and Air Quality of a Densely Occupied Multipurpose Room in an Elderly Care Center

open access: yesIndoor Air, Volume 2025, Issue 1, 2025.
Older people are more susceptible to health risks from indoor air pollution, even at low pollution levels. This study aimed to improve ventilation and air quality of densely occupied multipurpose rooms in elderly care centers (ECCs). The specific objectives were to investigate the impact of different ventilation types on ventilation performance and air
Huai-Wen Wu   +5 more
wiley   +1 more source

Characterization of powdered fish heads for bone graft biomaterial applications

open access: yesActa Orthopaedica et Traumatologica Turcica, 2020
Objective: The aim of this study was to define the chemical composition, morphology and crystallography of powdered fish heads of the species Argyrosomus regius for bone graft biomaterial applications.
Mustafa Ozgur Oteyaka   +3 more
doaj   +1 more source

Zircon Coupled Dissolution–Precipitation Replacement During Melt–Rock Interaction Modifies Chemical Signatures Resulting in Misleading Ages

open access: yesJournal of Metamorphic Geology, Volume 42, Issue 9, Page 1197-1214, December 2024.
ABSTRACT Melt migration through Earth's crust drives well‐documented melt–rock reactions, locally changing rock assemblage and geochemistry. However, melt–zircon interaction remains understudied. We report on three zircon‐melt interaction events from the Pembroke Granulite, New Zealand.
Nathan R. Daczko   +3 more
wiley   +1 more source

KARTEZYEN METAFİZİKTE TÖZ PROBLEMİ

open access: yesFelsefe Dünyası, 2008
Hülya YALDIR, KARTEZYEN METAFİZİKTE TÖZ PROBLEMİ, FELSEFE DÜNYASI, SAYI ...
Hülya Yaldır
doaj  

PVC esaslı CTP kesme atığı dolgulu malzemelerin termal özelliklerinin incelenmesi

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2016
Bu çalışmada, PVC üretiminde kullanılan CaCO3 dolgu malzemesi yerine, sanayi atığı kullanılması sonucu termal özelliklerdeki değişim araştırılmıştır.
Arzu Özüyağlı   +2 more
doaj   +1 more source

Nucleolar actions in plant development and stress responses

open access: yesPlant, Cell &Environment, Volume 47, Issue 12, Page 5189-5204, December 2024.
Abstract The nucleolus is conventionally acknowledged for its role in ribosomal RNA (rRNA) synthesis and ribosome biogenesis. Recent research has revealed its multifaceted involvement in plant biology, encompassing regulation of the cell cycle, development, and responses to environmental stresses. This comprehensive review explores the diverse roles of
Soeui Lee   +6 more
wiley   +1 more source

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