Results 151 to 160 of about 616,869 (305)

Design of a New Lost Circulation Control System

open access: yesShiyou jixie, 2017
To address the frequent occurrence of loss circulation during the drilling process and reduce the economic loss, a new type of lost circulation control has been designed.
Yu Yang   +3 more
doaj  

Commissioning of the ATLAS Pixel Detector

open access: yes, 2008
The ATLAS pixel detector is a high precision silicon tracking device located closest to the LHC interaction point. It belongs to the first generation of its kind in a hadron collider experiment. It will provide crucial pattern recognition information and
Arguin, J. -F.
core  

Modernization of device for compression springs hardening

open access: yesIOP Conference Series: Earth and Environmental Science, 2018
N Y Zemlyanushnova, N A Zemlyanushnov
openaire   +1 more source

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

open access: yesAdvanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr   +7 more
wiley   +1 more source

Discrete mechanism damping effects in the solar array flight experiment [PDF]

open access: yes
Accelerometer data were collected during on-orbit structural dynamic testing of the Solar Array Flight Experiment aboard the Space Shuttle, and were analyzed at Lockheed Missile and Space Co.
Pinson, E. D.
core   +1 more source

Highly Sensitive Electrochemical Biosensor Based on Hairy Particles with Controllable High Enzyme Loading and Activity

open access: yesAdvanced Functional Materials, EarlyView.
For the first time, a highly sensitive electrochemical biosensor based on SiO2‐based hairy particles with a grafted PDMAEMA polymer brush containing a quantifiable and large amount of immobilized Laccase is reported. The fabricated biosensor exhibits a sensitivity of 0.14 A·m⁻¹, a limit of detection (LOD) of 0.1 µm, and a detection range of 0.3–750 µm,
Pavel Milkin   +7 more
wiley   +1 more source

Experimented Study on a Mechanical Auto Reversing Device and Calculation of the Mechanical Parameters

open access: yesJixie chuandong, 1996
In this paper,the working principle of the mechanical auto reversing device is introduced.The working load and energy consumption of the device in the reversing operation is analyzed.The formulas for calculating the critical thrust for driving plate to ...
路懿, 毛秉义
doaj  

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

open access: yesAdvanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich   +6 more
wiley   +1 more source

Substrate Stress Relaxation Regulates Cell‐Mediated Assembly of Extracellular Matrix

open access: yesAdvanced Functional Materials, EarlyView.
Silicone‐based viscoelastic substrates with tunable stress relaxation reveal how matrix mechanics regulates cellular mechanosensing and cell‐mediated matrix remodelling in the stiff regime. High stress relaxation promotes assembly of fibronectin fibril‐like structures, increased nuclear localization of YAP and formation of β1 integrin‐enriched ...
Jonah L. Voigt   +2 more
wiley   +1 more source

Survey and Experimental Testing of Nongravimetric Mass Measurement Devices [PDF]

open access: yes
Documentation presented describes the design, testing, and evaluation of an accelerated gravimetric balance, a low mass air bearing oscillator of the spring-mass type, and a centrifugal device for liquid mass measurement. A direct mass readout method was
Lorenz, R., Oakey, W. E.
core   +1 more source

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