Results 71 to 80 of about 176,817 (335)

Apparatus for real-time acoustic imaging of Rayleigh-Benard convection

open access: yes, 2007
We have designed and built an apparatus for real-time acoustic imaging of convective flow patterns in optically opaque fluids. This apparatus takes advantage of recent advances in two-dimensional ultrasound transducer array technology; it employs a ...
Bozhko A.   +9 more
core   +1 more source

Exciton‐Polaritons in Nanoscale Metal‐Organic Frameworks: A Platform for the Reversible Modulation of Strong Light‐Matter Coupling via the Chemical Environment

open access: yesAdvanced Functional Materials, EarlyView.
Strong exciton‐photon coupling is achieved by integrating porphyrin ligand‐based MOF nanoparticles in optical cavities, as evidenced by pronounced polariton branch anticrossing. The porous nature of the resonator enables precise, reversible tuning via vapor pressure, unlocking unprecedented chemical‐environment controlled dynamic polaritonic platforms ...
Beatriz de Sola‐Báez   +7 more
wiley   +1 more source

Research on Parameters Optimization of Rectangular Pole Teeth for Magnetic Fluid Seals

open access: yesChinese Journal of Mechanical Engineering
To optimize the magnetic fluid seal design, the single-factor method is usually used to study the effect of the rectangular pole teeth structure parameters on the sealing capacity of the magnetic fluid seal by current research, and the design formula is ...
Lu Wang   +5 more
doaj   +1 more source

Index to NASA Tech Briefs, January - June 1967 [PDF]

open access: yes, 1967
Technological innovations for January-June 1967, abstracts and subject ...

core   +1 more source

Magnetic Field Finite Element Analysis of a Novel Diverging Stepped Magnetic Fluid Seal

open access: yesIOP Conference Series: Materials Science and Engineering, 2020
In order to improve the anti pressure capability of magnetic fluid seal under the large gap condition, a novel diverging stepped magnetic fluid seal was designed and set the pole teeth on the stepped shaft.
Peng Sun, Xiaolong Yang, Fuxiang Hao
semanticscholar   +1 more source

Nanolayer‐Encapsulated Stretchable Liquid‐Metal Sheets for Thermal Management

open access: yesAdvanced Functional Materials, EarlyView.
A stretchable liquid metal sheet with both high thermal conductivity and mechanical flexibility is developed. Its trilayer structure, comprising copper‐particle‐dispersed gallium liquid metal encapsulated by styrene‐butadiene‐styrene nanosheets, shows 40.4 W m−1 K−1 conductivity, elongation exceeding 200%, and retention of 96% of its initial ...
Daisuke Kuse   +16 more
wiley   +1 more source

Thermal balance analysis and optimization of a novel magnetic mechanical seal

open access: yesCase Studies in Thermal Engineering
To mitigate seal failure caused by excessive thermal deformation leading to the failure of magnetic mechanical seals, this paper proposes a novel magnetic seal structure, a single-stage stepped structure in the rotating ring.
Haozhe Liu   +5 more
doaj   +1 more source

A magnetically-driven piston pump for ultra-clean applications

open access: yes, 2011
A magnetically driven piston pump for xenon gas recirculation is presented. The pump is designed to satisfy extreme purity and containment requirements, as is appropriate for the recirculation of isotopically enriched xenon through the purification ...
Aharmim, B.   +79 more
core   +1 more source

Novel Functional Materials via 3D Printing by Vat Photopolymerization

open access: yesAdvanced Functional Materials, EarlyView.
This Perspective systematically analyzes strategies for incorporating functionalities into 3D‐printed materials via Vat Photopolymerization (VP). It explores the spectrum of achievable functionalities in recently reported novel materials—such as conductive, energy‐storing, biodegradable, stimuli‐responsive, self‐healing, shape‐memory, biomaterials, and
Sergey S. Nechausov   +3 more
wiley   +1 more source

A rotary magneto-rheological torque converter for tension regulation

open access: yesAdvances in Mechanical Engineering, 2018
In this article, a drum type of transmission device has been developed, which is a double-layer cylinder structure. The working clearance between the inner and the external layers of the device has been filled with intelligent material named magneto ...
Li Gang, Du Cheng-bin, Feng Yong
doaj   +1 more source

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