Results 61 to 70 of about 14,291 (315)

The WebStand Project [PDF]

open access: yes, 2009
In this paper we present the state of advancement of the French ANR WebStand project. The objective of this project is to construct a customizable XML based warehouse platform to acquire, transform, analyze, store, query and export data from the web, in ...
Colazzo, Dario   +5 more
core   +4 more sources

Impact of Hot Isostatic Pressing on Microstructure Evolution and Creep Performance of Powder Bed Fusion–Laser Beam Processed CM247LC

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of Hot Isostatic Pressing (HIP) temperature on the microstructure and creep performance of powder bed fusion–laser beam processed CM247LC superalloy is investigated. Grain growth and γ’ precipitate evolution are characterized following HIP at varying temperatures.
Ahmed Fardan   +4 more
wiley   +1 more source

Factors Associated With Influential Health-Promoting Messages on Social Media: Content Analysis of Sina Weibo

open access: yesJMIR Medical Informatics, 2020
BackgroundSocial media is a powerful tool for the dissemination of health messages. However, few studies have focused on the factors that improve the influence of health messages on social media.
Rao, Qingmao   +5 more
doaj   +1 more source

Emotional Effect of Cherry Blossoms in Wuhan during the COVID-19 Epidemic

open access: yesRedai dili, 2021
The COVID-19 interrupted the lives of Wuhan residents. This study attempted to understand the psychological loss and emotional changes in urban residents in this unusual period by exploring the relationship between city, residents, and landscape.
Xing Tenghui, Wang Xiaofeng
doaj   +1 more source

The nation's first space port [PDF]

open access: yes, 1964
Launch facilities for saturn v ...
Debus, K. H.
core   +1 more source

An Optimal Trade-off between Content Freshness and Refresh Cost

open access: yes, 2010
Caching is an effective mechanism for reducing bandwidth usage and alleviating server load. However, the use of caching entails a compromise between content freshness and refresh cost.
Cho   +7 more
core   +1 more source

Microstructural Evolution and Mechanical Properties of a Medium‐Manganese Steel Manufactured by Laser‐Based Powder Bed Fusion of Metals

open access: yesAdvanced Engineering Materials, EarlyView.
Fe–12Mn–0.2C medium‐manganese steel is processed by laser‐based powder bed fusion of metals using blended as well as pre‐alloyed powder. Various scanning speeds are used to determine the influence of energy deposition rate on microstructure and mechanical properties.
Leoni Hübner   +4 more
wiley   +1 more source

A Brief History of Web Crawlers [PDF]

open access: yes, 2014
Web crawlers visit internet applications, collect data, and learn about new web pages from visited pages. Web crawlers have a long and interesting history. Early web crawlers collected statistics about the web.
Bochmann, Gregor V.   +5 more
core   +1 more source

Multimodal Characterization of Sn‐Bi Solder Alloy Solidification Using Synchrotron X‐Ray Microtomography and Energy Dispersive Diffraction

open access: yesAdvanced Engineering Materials, EarlyView.
Real‐time imaging and energy‐dispersive diffraction during solidification of Sn‐Bi alloy interconnect for electronic packaging applications are studied. Sn‐Bi solder alloys have generated significant interest in recent times due to their potential use in electronic packaging.
Amey Luktuke   +3 more
wiley   +1 more source

Toward Architected Microstructures Using Advanced Laser Beam Shaping in Laser Powder Bed Fusion of Ti‐6Al‐4V

open access: yesAdvanced Functional Materials, EarlyView.
This research applies advanced laser beam shaping (LCoS‐SLM) to fabricate the Ti‐6Al‐4V alloy via laser powder bed fusion. A tailored beam is used to prevent martensite formation and create a dual α+β microstructure by controlling cooling rates.
Reza Esmaeilzadeh   +8 more
wiley   +1 more source

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