Results 21 to 30 of about 38,988 (337)

Toroidalization of locally toroidal morphisms

open access: yesTransactions of the American Mathematical Society, 2022
The problem of toroidalization is to construct a toroidal lifting of a dominant morphism $ :X\to Y$ of algebraic varieties by blowing up in the target and domain. This paper contains a solution to this problem when $ $ is locally toroidal.
openaire   +2 more sources

Effects of toroidal transition on strength and stability of submarine's cone-cone connection structure

open access: yesZhongguo Jianchuan Yanjiu, 2020
[Objectives] The cone-toroid-cone structure is a new type of structure to solve the problem of stress concentration at the joint of two conical shells with different angles in a pressure hull of submarine.
JING Teng   +3 more
doaj   +1 more source

Study on Conceptual Designs of Superconducting Coil for Energy Storage in SMES

open access: yesEast European Journal of Physics, 2020
Superconducting Magnetic Energy Storage (SMES) is an exceedingly promising energy storage device for its cycle efficiency and fast response. Though the ubiquitous utilization of SMES device is restricted because of the immense cost of cryogenic ...
Md. Abdullah Al Zaman   +2 more
doaj   +1 more source

Unveiling the role of Dps in the organization of mycobacterial nucleoid. [PDF]

open access: yesPLoS ONE, 2011
In order to preserve genetic information in stress conditions, bacterial DNA is organized into higher order nucleoid structure. In this paper, with the help of Atomic Force Microscopy, we show the different structural changes in mycobacterial nucleoid at
Payel Ghatak   +3 more
doaj   +1 more source

Stress strength characteristics analysis of sphere-toroid-cylinder combined shell

open access: yesZhongguo Jianchuan Yanjiu, 2017
Spherical bulkheads are widely used in large-deep submersibles due to their high volume-weight ratio and material utilization. The sphere-toroid-cylinder combined spherical bulkhead has the advantages of a simple structural style, clear mechanical ...
XIONG Jingyi, LIU Yong, MA Jianjun
doaj   +1 more source

Electromagnetic Waves in Annular Regions

open access: yesApplied Sciences, 2020
In suitable bounded regions immersed in vacuum, time periodic wave solutions solving a full set of electrodynamics equations can be explicitly computed. Analytical expressions are available in special cases, whereas numerical simulations are necessary in
Daniele Funaro
doaj   +1 more source

Demonstration of ultra-high-Q small mode volume toroid microcavities on a chip [PDF]

open access: yes, 2004
Optical microcavities confine light spatially and temporally and find application in a wide range of fundamental and applied studies. In many areas, the microcavity figure of merit is not only determined by photon lifetime (or the equivalent quality ...
K. J. Vahala   +3 more
core   +2 more sources

Numerical Simulation of the Behavior of Toroidal and Spheroidal Multicellular Aggregates in Microfluidic Devices with Microwell and U-Shaped Barrier

open access: yesMicromachines, 2017
A microfluidic system provides an excellent platform for cellular studies. Most importantly, a three-dimensional (3D) cell culture model reconstructs more accurately the in vivo microenvironment of tissue.
Maryam Barisam   +4 more
doaj   +1 more source

A Toroidal Metamaterial Switch [PDF]

open access: yesAdvanced Materials, 2017
AbstractToroidal dipole is a localized electromagnetic excitation that plays an important role in determining the fundamental properties of matter due to its unique potential to excite nearly nonradiating charge–current configuration. Toroidal dipoles are recently discovered in metamaterial systems where it is shown that these dipoles manifest as ...
Gupta, Manoj   +2 more
openaire   +3 more sources

Design of Toroid-Shaped Solid Ceramic End Mill [PDF]

open access: yesEPJ Web of Conferences, 2019
Electrical discharge machining (EDM) is one of the most accurate methods for machining conductive materials and has a number of important applications.
Grechishnikov Vladimir   +6 more
doaj   +1 more source

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