Catalogue Search | MBRL
Are you sure you want to remove the book from the shelf?
{{itemTitle}}
16,811
result(s) for
"Suh"
Sort by:
Naming the local : medicine, language, and identity in Korea since the fifteenth century
Examines the role of \"locality\" in medical innovations in Korea by tracing the origins of five key medical terms. Emerging within specific moments from the fifteenth to the twentieth centuries, each term represents both the aspirations and limitations of registering the local in the existing configuration of Korean medicine.-- Provided by publisher.
Book
D3-branes and M5-branes wrapped on a topological disc
A
bstract
Employing the method applied to construct
AdS
5
solutions from M5-branes recently by Bah, Bonetti, Minasian and Nardoni, we construct supersymmetric
AdS
3
solutions from D3-branes and M5-branes wrapped on a disc with non-trivial holonomies at the boundary. In five-dimensional U(1)
3
-gauged
N
= 2 supergravity, we find
N
= (2, 2) and
N
= (4, 4) supersymmetric
AdS
3
solutions. We uplift the solutions to type IIB supergravity and obtain D3-branes wrapped on a topological disc. We also uplift the solutions to eleven-dimensional supergravity and obtain M5-branes wrapped on a product of topological disc and Riemann surface. For the
N
= (2, 2) solution, holographic central charges are finite and well-defined. On the other hand, we could not find
N
= (4, 4) solution with finite holographic central charge. Finally, we show that the topological disc we obtain is, in fact, identical to a special case of the multi-charge spindle solution.
Journal Article
Designing a magnesium alloy with high strength and high formability
Although magnesium alloys, as the lightest structural alloys, offer significant potential for automotive applications, their applications remain limited due to their poor formability at room temperature. Since the strategies used for improving formability usually result in a degradation of strength, there are no high strength magnesium alloys showing good formability. Here we report an alloy design concept that can simultaneously provide high strength and good formability. Such designed alloy when subjected to an appropriate processing technique shows a combination of strength and formability that surpasses those of the existing magnesium alloys reported so far. The alloy design concept used in the present study is based on the utilization of alloying elements that can induce precipitation, as well as maximize the segregation of other texture-controlling alloying elements. Such developed alloy is expected to broaden the application of Mg alloy sheets, which are now starting to gain acceptance by automotive industries.
Despite being the lightest structural alloys, obtaining magnesium alloys with both high strength and high formability remains a challenge. Here, the authors use precipitation and elemental segregation to design a magnesium alloy with high strength and high formability.
Journal Article
Supersymmetric AdS 6 black holes from matter coupled F(4) gauged supergravity
In matter coupled F(4) gauged supergravity in six dimensions, we study supersymmetric AdS6 black holes with various horizon geometries. We find new AdS2×Σg1×Σg2\\[ Ad{S}_2\\times {\\varSigma}_{{\\mathfrak{g}}_1}\\times {\\varSigma}_{{\\mathfrak{g}}_2} \\] horizons with g\\[ \\mathfrak{g} \\]1> 1 and g\\[ \\mathfrak{g} \\]2> 1, and present the black hole solution numerically. The full black hole is an interpolating geometry between the asymptotically AdS6 boundary and the AdS2×Σg1×Σg2\\[ Ad{S}_2\\times {\\varSigma}_{{\\mathfrak{g}}_1}\\times {\\varSigma}_{{\\mathfrak{g}}_2} \\] horizon. We also find black holes with horizons of Kähler four-cycles in Calabi-Yau fourfolds and Cayley four-cycles in Spin(7) manifolds.
Journal Article
Stacking Fault Energy Analyses of Additively Manufactured Stainless Steel 316L and CrCoNi Medium Entropy Alloy Using In Situ Neutron Diffraction
Stacking fault energies (SFE) were determined in additively manufactured (AM) stainless steel (SS 316 L) and equiatomic CrCoNi medium-entropy alloys. AM specimens were fabricated via directed energy deposition and tensile loaded at room temperature.
In situ
neutron diffraction was performed to obtain a number of faulting-embedded diffraction peaks simultaneously from a set of (hkl) grains during deformation. The peak profiles diffracted from imperfect crystal structures were analyzed to correlate stacking fault probabilities and mean-square lattice strains to the SFE. The result shows that averaged SFEs are 32.8 mJ/m
2
for the AM SS 316 L and 15.1 mJ/m
2
for the AM CrCoNi alloys. Meanwhile, during deformation, the SFE varies from 46 to 21 mJ/m
2
(AM SS 316 L) and 24 to 11 mJ/m
2
(AM CrCoNi) from initial to stabilized stages, respectively. The transient SFEs are attributed to the deformation activity changes from dislocation slip to twinning as straining. The twinning deformation substructure and atomic stacking faults were confirmed by electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM). The significant variance of the SFE suggests the critical twinning stress as 830 ± 25 MPa for the AM SS 316 L and 790 ± 40 MPa for AM CrCoNi, respectively.
Journal Article
Supersymmetric AdS6 black holes from F(4) gauged supergravity
A
bstract
In
F
(4) gauged supergravity in six dimensions, we study supersymmetric
AdS
6
black holes with various horizon geometries. We find a new
Ad
S
2
×
Σ
g
1
×
Σ
g
2
horizon solution with
g
1
>
1
and
g
2
>
1
, and present the black hole solution numerically. The full black hole is an interpolating geometry between the asymptotically
AdS
6
boundary and the
Ad
S
2
×
Σ
g
1
×
Σ
g
2
horizon. We calculate the Bekenstein-Hawking entropy of the black hole and find a match with the recently calculated topologically twisted index of 5d USp(2
N
) gauge theory on
Σ
g
1
×
Σ
g
2
×
S
1
in the large
N
limit. We also find black hole horizons of Kähler four-cycles in Calabi-Yau fourfolds and on Cayley four-cycles in Spin(7) manifolds.
Journal Article