Results 121 to 130 of about 48,149 (293)

The Reason for the Occurrence of W-type Contact Binaries

The Astrophysical Journal Supplement Series
For more than half a century, the puzzling W-type phenomenon in contact binaries has challenged astrophysicists. In these systems, the less massive component exhibits a higher surface temperature than its more massive companion, which is a reversal of ...
Jia Zhang, Sheng-Bang Qian, Li-Ying Zhu, Xu-Zhi Li   +3 more
doaj   +1 more source

Interconnected Porous Hydrogels with Tunable Anisotropy Through Aqueous Emulsion Bioprinting

Advanced Functional Materials, EarlyView.
A 3D bioprintable microporous bioink is developed using an aqueous two‐phase system (ATPS) composed of extracellular matrix (ECM) mimetic biopolymers. The ATPS bioink enables the fabrication of interconnected porous architectures with up to 70% porosity, supporting long‐term cell viability and 3D cell alignment, enabling a simultaneous generation of ...
Hugo Edgar‐Vilar, Francisca P. Correia, Inês M. Freitas, Vítor M. Gaspar, João F. Mano   +4 more
wiley   +1 more source

Robust and Reversible Thermofluorescence in Solvent‐Free Thermoplastic Polyurethane Composites

Advanced Functional Materials, EarlyView.
Thermofluorescent polymer composites with high‐contrast optical outputs are prepared by solvent‐free blending of indenoquinacridone dye into a thermoplastic polyurethane matrix. The temperature‐dependent fluorescence originates from aggregation–dissociation of the dye molecules, regulated by competing hydrogen bonds from the polymer matrix.
Guanghua Yu, Bowen Tian, Jazmine Aiya Marquez, Chia‐Min Hsieh, Qingsheng Wang, Hung‐Jue Sue, Mohammed Al‐Hashimi, Peiran Wei, Lei Fang   +8 more
wiley   +1 more source

Electron–Matter Interactions During Electron Beam Nanopatterning

Advanced Functional Materials, EarlyView.
This article reviews the electron–matter interactions important to nanopatterning with electron beam lithography (EBL). Electron–matter interactions, including secondary electron generation routes, polymer radiolysis, and electron beam induced charging, are discussed.
Camila Faccini de Lima, Prathiba Thamizhavel, Taylor J. Woehl   +2 more
wiley   +1 more source

A Tale on Two Close Binaries in Pegasus

Open Astronomy, 2014
We present the simultaneous light and radial velocity curve analysis of two contact binaries in Pegasus using the Wilson-Devinney code. The following absolute astrophysical parameters are determined: masses, radii and effective temperatures.
Şenavcı H. V., Yılmaz M., Baştürk Ö., Özavcı İ., Çalışkan Ş., Kılıçoğlu T., Tezcan C. T.   +6 more
doaj   +1 more source

Block Copolymers: Emerging Building Blocks for Additive Manufacturing

Advanced Functional Materials, EarlyView.
This review addresses how block copolymer (BCP) physics and rheology have led to the widespread use of BCPs in advanced additive manufacturing techniques, with particular emphasis on the untapped potential of these nanostructured materials toward achieving multi‐scale architected materials with unique, programmable material properties.
Alice S. Fergerson, Hemish B. Thakkar, Jiaen Wu, Emily C. Davidson   +3 more
wiley   +1 more source

A Contact Binary Misclassified as an Ellipsoidal Variable: Complications for Detached Black Hole Searches

The Astronomical Journal
Identifying sources exhibiting ellipsoidal variability in large photometric surveys is becoming a promising method to search for candidate detached black holes (BHs) in binaries.
Tyrone N. O’Doherty, Arash Bahramian, Adelle J. Goodwin, James C. A. Miller-Jones, Jerome A. Orosz, Jay Strader   +5 more
doaj   +1 more source

An Ionic Gelation Powder for Ultrafast Hemostasis and Accelerated Wound Healing

Advanced Functional Materials, EarlyView.
An ultrafast ionic gelation‐activated hemostatic powder (AGCL) forms a hydrogel within ≈1 s upon contact with blood‐derived calcium ions. The AGCL powder enables rapid hemorrhage control, strong tissue adhesion, and enhanced healing. The powder's pre‐crosslinked polymer network ensures high blood uptake and stability, offering effective treatment for ...
Youngju Son, Kyusoon Pak, Taehoon Lee, Monica Celine Prayogo, Jinyoung Choi, Sukkyung Kang, Minjoo Kang, Byungkook Oh, Sang Yu Sun, Sanha Kim, Sung Gap Im, Sangyong Jon, Steve Park   +12 more
wiley   +1 more source

Minute-cadence Observations of the LAMOST Fields with the TMTS. VI. Physical Parameters of Contact Binaries

The Astronomical Journal
With the development of wide-field surveys, a large amount of data on short-period W UMa contact binaries have been obtained. Continuous and uninterrupted light curves as well as high-resolution spectroscopic data are crucial in determining the absolute ...
Qiqi Xia, Xiaofeng Wang, Kai Li, Xiang Gao, Fangzhou Guo, Jie Lin, Cheng Liu, Jun Mo, Haowei Peng, Qichun Liu, Gaobo Xi, Shengyu Yan, Xiaojun Jiang, Jicheng Zhang, Cui-Ying Song, Jianrong Shi, Xiaoran Ma, Danfeng Xiang, Wenxiong Li   +18 more
doaj   +1 more source

THE FIRST MULTICOLOUR PHOTOMETRY OF THE V840 LYR CONTACT BINARY STAR

Revista Mexicana de Astronomía y Astrofísica
Light curves for the total-eclipsing binary system V840 Lyr in the V, Rc, and Ic bands are presented; these display the O'Connell effect. Analysis was performed with the Phoebe031a software revealing that V840 Lyr is a W-type contact binary with a degree of contact factor of f = 15.1 ± 5.6%, a mass ratio of q = 0.4509 ± 0.0705, an inclination of i = 86.
Aceves, Hector, Keskin, Ahmet, Bulut, Ahmet, Michel, Raul, Tanrıver, Mehmet   +4 more
openaire   +3 more sources