Results 51 to 60 of about 106,445 (292)

The star-formation histories of elliptical galaxies across the fundamental plane [PDF]

, 2006
We present the first results from a study designed to test whether, given high-quality spectrophotometry spanning the mid-UV--optical wavelength regime, it is possible to distinguish the metal content (Z) and star-formation history (sfh) of individual ...
Dunlop, J. S., Heavens, A. F., Jimenez, Raul, Nolan, Louisa A., Panter, B., Smith, G.   +5 more
core   +2 more sources

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Use of machine learning in determining Gmax from bender element tests [PDF]

E3S Web of Conferences
The use of bender element is one of the most popular methods of determining shear wave velocity, and hence elastic shear modulus due to its relatively straightforward experimental set-up.
Xu Wenzhang, Le Truong
doaj   +1 more source

Theory and experiment of isotropic electromagnetic beam bender made of dielectric materials

, 2010
In this paper, we utilize the deformation transformation optics (DTO) method to design electromagnetic beam bender, which can change the direction of electromagnetic wave propagation as desire. According to DTO, the transformed material parameters can be
Chang, Zheng, Deng, Qibo, Hu, Gengkai, Hu, Jin, Zhou, Xiaoming   +4 more
core   +1 more source

General Aspects of PT-Symmetric and P-Self-Adjoint Quantum Theory in a Krein Space [PDF]

, 2006
In our previous work, we proposed a mathematical framework for PT-symmetric quantum theory, and in particular constructed a Krein space in which PT-symmetric operators would naturally act. In this work, we explore and discuss various general consequences
Azizov T Y, Azizov T Y, Azizov T Y, Bender C M, Bender C M, Bender C M Chen J H Darg D W Milton K A, Bognár J, Dirac P A M, Dorey P, Dorey P, Fernández F M, González-López A, Guillou J C L, Japaridze G S, Jones H F, Kleefeld F, Kleefeld F, Kugo T, Mostafazadeh A, Mostafazadeh A, Mostafazadeh A, Mostafazadeh A, Mostafazadeh A, Nanayakkara A, Naymark M A, Strominger A, Symanzik K, Tai T D, Tanaka T, Toshiaki Tanaka   +29 more
core   +2 more sources

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

Advanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera, Philippe Marrec, A. Jorge Parola, Madalena Dionísio, Hugo Águas, Andreia F. M. Santos, Hamed Pourkheirollah, Donald Lupo, César A. T. Laia   +8 more
wiley   +1 more source

On the metallicity distribution in the nuclei of elliptical galaxies [PDF]

, 1996
Using current models of spectrophotometric properties of single age, single metallicity stellar populations I have computed the Mg2, Hbeta, Fe52 and Fe53 line strengths for stellar populations with a metallicity spread.
Greggio, L.
core   +2 more sources

Analysis of bender element test interpretation using the discrete element method

Granular Matter, 2015
While bender element testing is now well-established as a laboratory technique to determine soil stiffness, a robust technique to interpret the data remains elusive. A discrete element method (DEM) model of a face-centred cubic packing of uniform spheres was created to simulate bender element tests to investigate this test from a fundamental ...
O’Donovan, J., O’Sullivan, C., Marketos, G., Muir Wood, D.   +3 more
openaire   +4 more sources

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

Advanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai, Xinrui Sarah Niu, Zhao Qin   +2 more
wiley   +1 more source

Strength Deterioration of Guar Gum-Modified Loess under Freeze-thaw Environments [PDF]

长江科学院院报
[Objective] To explore the impact of freeze-thaw environments on the strength of guar gum-modified loess, direct shear test, unconfined compression strength test, Brazilian splitting test, and bender element small-strain test are conducted to examine the
LIU Xin, WANG Xiao-jie, TONG Bin, YIN Rong-yi, ZHU Hong
doaj   +1 more source