Results 81 to 90 of about 73,102 (307)

Design and construction of the IMACS-IFU, a 2000-element integral field unit

open access: yes, 2004
The IMACS-IFU is an Integral Field Unit built for the IMACS spectrograph at the Magellan-I-Telescope at Las Campanas Observatory. It consists of two rectangular fields of 5 by 7 arcseconds, separated by roughly one arcminute.
Allington-Smith, J. R.   +3 more
core   +1 more source

Mechanical properties and thermal behaviour of two-stage concrete containing palm oil fuel ash [PDF]

open access: yes, 2017
Two-stage concrete (TSC) is a special type of concrete which is made by placing coarse aggregate in a formwork and injecting a grout either by pump or under the gravity force to fill the voids. Over the decades, the application of supplementary cementing
Abdul Awal, A.S.M.   +3 more
core   +1 more source

Perspective on Aqueous Batteries: Historical Milestones and Modern Revival

open access: yesAdvanced Materials, EarlyView.
This review retraces the development of aqueous batteries from classical Zn‐MnO2 chemistry to modern Zn and Ni systems, correlating voltage, capacity, and electrolyte formulation with practical performance. By mapping historical success and failure onto current and future research directions, it identifies guiding principles that steer the design of ...
Fangwang Ming   +5 more
wiley   +1 more source

Integration Technology of Gyro Inclinometer and Cementing Quality Measurement Tool

open access: yesShiyou jixie, 2020
To address the problem that the horizontal well section or the high-inclination well section cannot conduct gyro remeasurement and the high risk of collision prevention in deep well, to create good wellbore conditions for reperforation and sidetracking ...
Wang Kunjian   +4 more
doaj  

Application of Mechanical Nitrogen Filling Foam Cementing Technique in Shale Gas Wells

open access: yesShiyou jixie, 2022
Shale gas wells under complex conditions are faced with some cementing problems such as lost of circulation, low displacement efficiency and poor sealing effect.
Kuang Lixin   +6 more
doaj  

Enabling Real‐Time, Non‐Ionizing 3D Imaging of Implantable Magnetic Cements Using Magnetic Particle Imaging

open access: yesAdvanced Materials Interfaces, EarlyView.
This study reports the first implantable resin cement capable of orientation‐sensitive Magnetic Particle Imaging (MPI). By coating the cement with an ultrathin iron film, the authors achieve a strong, angle‐dependent MPI signal that enables non‐ionizing, real‐time tracking of both implant position and orientation, opening new possibilities for safe ...
Gabriel C. Pinto   +10 more
wiley   +1 more source

Analysis of Cementing Strength of Sidetracking Cement Sheath Based on 3D Model

open access: yesShiyou jixie, 2022
During sidetracking in old wells,the drill bit may destroy existing casings and cement sheaths,and meanwhile,the cementing strength of the first and second cementing surfaces near the window will be decreased,which will affect the safety of sidetracking ...
Ouyang Yong   +4 more
doaj  

Laser‐Based Solidification of Cermets/Cemented Carbides: Processing‐Microstructure‐Property Relationships

open access: yesAdvanced Materials Technologies, EarlyView.
Recent research on laser‐processed cermets and cemented carbides highlights significant advancements, yet a notable paucity of studies and persistent challenges remain. Efforts are increasingly focused on developing low‐cost, environmentally friendly cermets as alternatives to conventional materials.
Himanshu Singh Maurya   +2 more
wiley   +1 more source

Tracking Chart 2006 Nike, India 12023286BV [PDF]

open access: yes, 2006
This document is part of a digital collection provided by the Martin P. Catherwood Library, ILR School, Cornell University, pertaining to the effects of globalization on the workplace worldwide.
Fair Labor Association
core   +1 more source

Lattice Structures for Bone Replacement: The Intersection of Bone Biomechanics, Lattice Design, and Additive Manufacturing

open access: yesAdvanced Materials Technologies, EarlyView.
This review outlines how understanding bone's biology, hierarchical architecture, and mechanical anisotropy informs the design of lattice structures that replicate bone morphology and mechanical behavior. Additive manufacturing enables the fabrication of orthopedic implants that incorporate such structures using a range of engineering materials ...
Stylianos Kechagias   +4 more
wiley   +1 more source

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