Zobrazeno 1 - 10
of 699
pro vyhledávání: '"Nam Phan"'
Autor:
Daren Peng, Caixian Tang, Jarrod Watts, Andrew Ang, R. K. Singh Raman, Michael Nicholas, Nam Phan, Rhys Jones
Publikováno v:
Materials, Vol 17, Iss 11, p 2656 (2024)
This paper presents the results of an extensive investigation into the durability of cold spray repairs to corrosion damage in AA7075-T7351 aluminium alloy specimens where, prior to powder deposition, the surface preparation involved grit blasting. I
Externí odkaz:
https://doaj.org/article/7b419a97c0e045e8bfa4d578467be0ba
We study the ground state energy of a gas of spin $1/2$ fermions with repulsive short-range interactions. We derive an upper bound that agrees, at low density $\rho$, with the Huang-Yang conjecture. The latter captures the first three terms in an asy
Externí odkaz:
http://arxiv.org/abs/2409.17914
We prove a rigorous lower bound on the correlation energy of interacting fermions in the mean-field regime for a wide class of singular interactions, including the Coulomb potential. Combined with the upper bound obtained in \cite{ChrHaiNam-23b}, our
Externí odkaz:
http://arxiv.org/abs/2405.01386
Autor:
Terrence P. Moran, Patricio E. Carrion, Seungjong Lee, Nima Shamsaei, Nam Phan, Derek H. Warner
Publikováno v:
Materials, Vol 15, Iss 6, p 2051 (2022)
The efficacy of hot isostatic pressing (HIP) for enhancing fatigue performance is investigated for additively manufactured (AM) Ti-6Al-4V. The limitations of HIP are probed by varying the initial material state via the selection of AM system, powder
Externí odkaz:
https://doaj.org/article/d10be7e0a9744e179d8db7290e85baf7
Publikováno v:
Materials & Design, Vol 182, Iss , Pp - (2019)
Additive manufacturing (AM) has provided an opportunity for fabricating complex parts. Fabricating these parts without defects is currently a challenge. Therefore, understanding AM defects is fundamental to the structural integrity of load carrying c
Externí odkaz:
https://doaj.org/article/0256352aee8d4746bfe6d1ef10f1cc59
We prove a Cwikel-Lieb-Rozenblum type inequality for the number of negative eigenvalues of the Hardy-Schr\"odinger operator $-\Delta - (d-2)^2/(4|x|^2) -W(x)$ on $L^2(\mathbb{R}^d)$. The bound is given in terms of a weighted $L^{d/2}-$norm of $W$ whi
Externí odkaz:
http://arxiv.org/abs/2312.16482
Autor:
Dietze, Charlotte, Nam, Phan Thành
We derive a family of interpolation estimates which improve Hardy's inequality and cover the Sobolev critical exponent. We also determine all optimizers among radial functions in the endpoint case and discuss open questions on nonrestricted optimizer
Externí odkaz:
http://arxiv.org/abs/2312.11249
Publikováno v:
Data in Brief, Vol 25, Iss , Pp - (2019)
This article presents the data demonstrating the synergistic effect of surface roughness and heat treatment on the fatigue behavior of 17–4 PH stainless steel (SS) fabricated via laser beam powder bed fusion (LB-PBF) [1]. Two sets of specimens, in
Externí odkaz:
https://doaj.org/article/4b1e01e0d0c544a3a30adf06bf62e395
Publikováno v:
Materials, Vol 14, Iss 6, p 1400 (2021)
The United States Air Force (USAF) Guidelines for the Durability and Damage Tolerance (DADT) certification of Additive Manufactured (AM) parts states that the most difficult challenge for the certification of an AM part is to establish an accurate pr
Externí odkaz:
https://doaj.org/article/c870485cd3884649ac955933a802e157
We consider a translation-invariant system of $N$ bosons in $\mathbb{T}^{3}$ that interact through a repulsive two-body potential with scattering length of order $N^{-1}$ in the limit $N\to \infty$. We derive second order expressions for the one- and
Externí odkaz:
http://arxiv.org/abs/2310.05448