Results 31 to 40 of about 86,706 (276)

Radiation and energy release in a background field of axion-like dark matter

open access: yes, 2017
We find that a fuzzy dark matter background and the mG scale magnetic field in the galactic center can give rise to a radiation with a very large energy release.
Liao, Wei
core   +2 more sources

The central dark matter content of early-type galaxies: scaling relations and connections with star formation histories [PDF]

open access: yes, 2010
We examine correlations between the masses, sizes, and star formation histories for a large sample of low-redshift early-type galaxies, using a simple suite of dynamical and stellar populations models.
Aaron J. Romanowsky   +201 more
core   +1 more source

Pil Benzeri Isıl Koşullara Sahip bir Silindirin Faz Değiştiren Malzeme ile Soğutulmasının Deneysel İncelenmesi

open access: yesJournal of Advanced Research in Natural and Applied Sciences, 2022
Bu çalışmada, lityum iyon pillerin pasif termal yönetim sistemlerinden faz değişim malzemesi (FDM) kullanımı ile soğutulması deneysel olarak incelenmiştir.
Göker Türkakar, Satılmış Tekin
doaj   +1 more source

Front-end Multiplexing - applied to SQUID multiplexing : Athena X-IFU and QUBIC experiments

open access: yes, 2015
As we have seen for digital camera market and a sensor resolution increasing to "megapixels", all the scientific and high-tech imagers (whatever the wave length - from radio to X-ray range) tends also to always increases the pixels number.
Prêle, Damien
core   +3 more sources

Effect of SiC/Al2O3 particle size reinforcement in recycled LDPE matrix on mechanical properties of FDM feed stock filament

open access: yesVirtual and Physical Prototyping, 2018
In this research work, an effort has been made to develop fused deposition modelling (FDM), feed stock filament wire from recycled low-density polyethylene (LDPE) with different particle sizes (i.e.
Piyush Bedi, Rupinder Singh, IPS Ahuja
doaj   +1 more source

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

open access: yesAdvanced 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   +6 more
wiley   +1 more source

FDM Yöntemiyle Üretilen Evolvent Profilli Silindirik Dişli Çarkların Yüzey Kalitesi ve Görüntü İşleme Tekniği ile Geometrik Analizi

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2019
Üretim süreçlerinde karşılaşılan problemlerin çözümünde 3B yazıcılar önemli fırsatlar sunmaktadır. Bu çalışmada, ergiyik yığma modelleme (EYM) yöntemi ile 3B yazıcıda üretilen ABS esaslı dişli çarkların yüzey kalitesi ve boyutsal kontrolü üzerine ...
Hakan Yılmaz, Nafiz Yaşar
doaj   +1 more source

Analysis of the resistance to crack propagation in SENT test specimens printed in ABS using parallel or crossed filaments between layers

open access: yesFracture and Structural Integrity, 2023
Additive manufacturing techniques continue to develop and cover all industrial fields. However, the performances of aspect and mechanical behavior of the parts obtained by this process remain to be mastered and are still the subject of current research ...
O. Aourik, A. Chouaf, M. Othmani
doaj   +1 more source

3D‐Printed Giant Magnetoresistive (GMR) Sensors Based on Self Compliant Springs

open access: yesAdvanced Engineering Materials, EarlyView.
This work explores 3D‐printed GMR sensors utilizing self‐compliant spring structures and conductive PLA composites. By optimizing arm width, we achieved high piezoresistive (0.34%/mm) and magnetoresistive (0.77%/mT) sensitivities. Demonstrated through Bluetooth‐integrated pressure and magnetic position sensing, these full printed low‐cost, customizable
Josu Fernández Maestu   +4 more
wiley   +1 more source

DIMENSIONAL ACCURACY OF 3D PRINTED DOG BONE STRUCTURES

open access: yesRekayasa Mesin
The current study provides a comprehensive discussion regarding statistical analysis of dimensional accuracy comprising thickness, gauge section width, circularity and cylindricity for 3D printed polylactic acid (PLA) specimens according to the ...
Wendy Triadji Nugroho   +3 more
doaj   +1 more source

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