Results 21 to 30 of about 355,438 (294)

Sealing by soldering of microblock packages made of diamagnetic alloys using high-frequency heating

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2018
The main difficulties of application of high-frequency (HF) heating for sealing by soldering of microblock packages made of aluminum alloys is the low efficiency of heating, long processing time and considerable heating of the internal electronic module ...
V. L. Lanin, Yu. N. Grishchenko
doaj   +1 more source

Sintering/Crystallization and Viscosity of Sealing Glass-Ceramics

open access: yesCrystals, 2021
Two glass-ceramics sealants for solid-oxide fuel cells (SOFC) in the system BaO/SrO-MgO-B2O3-SiO2 have been analysed according to relevant sealing parameters such as sintering and crystallization of the glass powders and dilatation and viscosity ...
Sonia Rodríguez-López   +1 more
doaj   +1 more source

Stamina of a non-gasketed flange joint under combined internal pressure and axial loading [PDF]

open access: yes, 2008
The performance of a bolted flange joint is characterized mainly by its 'strength' and 'sealing capability'. A number of numerical and experimental studies have been conducted to study these characteristics under internal pressure loading conditions ...
ASME boiler and pressure vessel code   +5 more
core   +1 more source

Surface conforming thermal/pressure seal [PDF]

open access: yes, 1981
An assembly is disclosed for sealing a variable gap between the surface of element and a second element in movable relation to it. A seal housing is attached to the second element for movement therewith and has a sealing surface.
Stevens, M. L.
core   +1 more source

Tumor‐stromal crosstalk and macrophage enrichment are associated with chemotherapy response in bladder cancer

open access: yesFEBS Open Bio, EarlyView.
Chemoresistance in bladder cancer: Macrophage recruitment associated with CXCL1, CXCL5 and CXCL8 expression is characteristic of Gemcitabine/Cisplatin (Gem/Cis) Non‐Responder tumors (right side) while Responder tumors did not show substantial tumor‐stromal crosstalk (left side). All biological icons are attributed to Bioicons: carcinoma, cancerous‐cell‐
Sophie Leypold   +11 more
wiley   +1 more source

The modeling of the heat balance elements of construction jet-grouting machines [PDF]

open access: yesНаучно-технический вестник Брянского государственного университета, 2019
The article discusses the methods of constructing mathematical models describing the heat balance in the “hydraulic puller-drill shaft” node used in jet-grouting machines during high pressure transmission from stationary elements to rotating parts of the
Novikov V.I.   +2 more
doaj   +1 more source

Dual motion valve with single motion input [PDF]

open access: yes, 1987
A dual motion valve includes two dual motion valve assemblies with a rotary input which allows the benefits of applying both rotary and axial motion to a rotary sealing element with a plurality of ports.
Belew, Robert
core   +1 more source

Quantum Seals [PDF]

open access: yesPhysica Scripta, 2005
A quantum seal is a way of encoding a message into quantum states, so that anybody may read the message with little error, while authorized verifiers can detect that the seal has been broken. We present a simple extension to the Bechmann-Pasquinucci majority-voting scheme that is impervious to coherent attacks, and further, encompasses sealing quantum ...
Singh, Sudhir Kumar, Srikanth, R.
openaire   +3 more sources

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Configurable 3D Printed Microfluidic Multiport Valves with Axial Compression

open access: yesMicromachines, 2021
In the last decade, the fabrication of microfluidic chips was revolutionized by 3D printing. It is not only used for rapid prototyping of molds, but also for manufacturing of complex chips and even integrated active parts like pumps and valves, which are
Juliane Diehm   +2 more
doaj   +1 more source

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