Results 31 to 40 of about 241,786 (281)

Trajectories anonymous algorithm for association attack

open access: yes网络与信息安全学报, 2017
During the location based service of continuous query,the trajectories which were produced by different movement types may reveal the privacy of user’s location.To solve this problem,a mechanism was proposed to put forward the real-time similar ...
Lei ZHANG,Song-tao YANG   +1 more
doaj   +3 more sources

Optimal Dummy Pattern Design Method for PWB Warpage Control Using the Human-Based Genetic Algorithm

open access: yesMicromachines, 2020
In this work, a method that minimizes printed wiring board (PWB) warpage by dummy pattern design is proposed. This work suggests that dummy patterns are placed on a preset discretized location in the PWB to reduce the warpage.
Sun Kyoung Kim, Sang-Hyuk Lee
doaj   +1 more source

Enhanced Strength and Corrosion Resistance of Ti‐13Nb‐12Ta‐10Zr‐4Sn Alloy by Aging Treatment

open access: yesAdvanced Engineering Materials, EarlyView.
This work systematically investigates the effect of aging treatment on mechanical properties and corrosion behavior of vacuum arc‐melted Ti‐13Nb‐12Ta‐10Zr‐4Sn alloy. Owing to the increased α″ martensite, strength and corrosion resistance were significantly enhanced by aging treatment.
Yuhua Li   +5 more
wiley   +1 more source

What are the Channels for Technology Sourcing? Panel Data Evidence from German Companies [PDF]

open access: yes, 2012
Innovation processes within corporations increasingly tap into international technology sources, yet little is known about the relative contribution of different types of innovation channels.
Harhoff, Dietmar
core   +2 more sources

On‐Surface Indigo‐Based Bimolecular Coordination Networks with Programmable Regular or Vitreous Structure

open access: yesAdvanced Functional Materials, EarlyView.
A previously unreported coordination motif stabilising single Fe atoms by indigo chelation and pyridyl coordination on Au(111) has been revealed. By using planar tritopic pyridyl linkers (TPyB), extended 2D porous networks of indigo3(TPyB)2Fe6 form. These networks can be crystalline or vitreous and offer an environment where individual coordination ...
Hongxiang Xu   +9 more
wiley   +1 more source

Joint venture investments and the market value of the firm [PDF]

open access: yes, 2004
The impact of Joint Venture announcements on the market value of UK listed companies is examined. Based on a sample of 158 announcements of either joint venture formation or joint venture activities, significant positive market-adjusted abnormal returns ...
Danbolt, J., Jones, E.
core   +2 more sources

Meta‐Rod Mechanical Metamaterials With Programmable Reconfiguration

open access: yesAdvanced Functional Materials, EarlyView.
Existing mechanical metamaterials achieve programmable large deformations in planar square or cubic configurations, restricted by required complex boundary conditions. This research proposes a 1D metamaterial, Meta‐rod, with linear, bending, twisting, area, and volume deformation modes.
Atharva Pande, Lyes Kadem, Hang Xu
wiley   +1 more source

Location of Patient Laid Down on Gatch Bed in order to Decrease Pressures around Abdominal Regions While Backrest Lifting

open access: yesJournal of Biomechanical Science and Engineering, 2012
The purpose of this study is to propose a lying location on a gatch bed for bedridden elderly people or patients, in order to decrease pressures around the abdominal region during backrest lifting.
Hiroko KOBAYASHI   +3 more
doaj   +1 more source

Spatially Modulated Morphotropic Phase Boundaries in a Compressively Strained Multiferroic Thin Film

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT The coexisting rhombohedral‐like (R′, MA) and tetragonal‐like (T′, MC) monoclinic phases in compressively strained bismuth ferrite thin films exhibit exceptional piezoelectric and magnetic properties. While previous studies have largely focused on probing the morphotropic phase boundaries (MPBs) comprising ordered R′/T′ twins, their self ...
Ting‐Ran Liu   +7 more
wiley   +1 more source

Location Privacy Protection Systems in Presence of Service Quality and Energy Constraints

open access: yesInformation, 2019
The wide-ranging application of location-based services (LBSs) through the use of mobile devices and wireless networks has brought about many critical privacy challenges.
Mulugeta Kassaw Tefera, Xiaolong Yang
doaj   +1 more source

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