Results 71 to 80 of about 126,551 (312)

Why We Disclose on Social Media? Towards a Dual-Pathway Model

open access: yesBehavioral Sciences
Grounded in social penetration theory and social capital theory, this study aims to investigate how social media self-disclosure influences bridging and bonding online social capital, and how these in turn affect users’ loneliness and online ...
Qiyu Bai, Qi Dan, Yumin Choi, Siyang Luo
doaj   +1 more source

Interaction of Ladle Slag With Varying SiO2 Content and Recyclate‐Based MgO–C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
Ladle slags (CaO/Al2O3 = 1) with 1–20 wt% SiO2 were investigated in contact with industrial MgO–C refractories fabricated from fresh magnesia and 50 wt% recyclate. The sessile drop method at 1600°C reveals intensive gas formation, delayed slag infiltration in recyclate‐based samples, and, under high‐SiO2 slag, formation of a dense MgAl2O4‐rich ...
Anton Yehorov   +6 more
wiley   +1 more source

Fabrication of highly dense SiN4 ceramics without additives by high pressure sintering [PDF]

open access: yes
Silicon nitride (Si3N4) is one of candidate materials for the engineering ceramics which is used at high temperatures. The mechanical strengths of hot pressed or sintered Si2N4 ceramics containing some amount of additives, however, are deteriorated at ...
Koizumi, M., Shimade, M., Takatori, K.
core   +1 more source

Dielectric Barrier Discharge Plasma Deoxidation of Natively Oxide Layer of Copper Powders in a Fluidized Bed

open access: yesAdvanced Engineering Materials, EarlyView.
This paper presents a novel approach to reducing oxide layers on metal powders using low‐temperature hydrogen dielectric barrier discharge plasmas at atmospheric pressure. Unlike conventional hydrogen‐plasma reductions, the powders do not contact the plasma directly.
Shukang Zhang   +3 more
wiley   +1 more source

How to Make Institutional Economics Policy-Relevant: Theoretical Considerations and an Application to Rural Credit Markets in Developing Countries [PDF]

open access: yes
Welfare economics as the traditional, prescriptive theory framework used in agricultural economics has been criticised by institutional economists as being largely irrelevant to real-world policy issues.
Petrick, Martin
core   +1 more source

Multifunctional Crushing and Piezoresistive Self‐Sensing in Conductive Epoxy/CNT‐Coated Polyetherimide TPMS Lattices

open access: yesAdvanced Engineering Materials, EarlyView.
This study reports lightweight polyetherimide triply periodic minimal surfaces lattices coated with carbon nanotube‐reinforced epoxy that combine mechanical robustness with self‐sensing. The conformal coating enhances stiffness, strength and energy absorption while enabling reliable strain monitoring.
A. Triay   +3 more
wiley   +1 more source

Effect of Various Material Properties on the Adhesive Stage of Fretting [PDF]

open access: yes
Various properties of metals and alloys were studied with respect to their effect on the initial stage of the fretting process, namely adhesion.
Buckley, D. H.
core   +1 more source

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu   +10 more
wiley   +1 more source

The making of nickel and nickel-alloy shapes by casting, powder metallurgy, electroforming, chemical vapor deposition, and metal spraying [PDF]

open access: yes
Casting, powder metallurgy, electroforming, metal spraying, and chemical vapor deposition techniques for producing nickel and nickel-alloy ...
Barth, V. D.   +5 more
core   +1 more source

The changing tides of port geography (1950–2012) [PDF]

open access: yes, 2014
International audienceHuman geographers actively studied ports in past decades. However, the extent to which port geography constituted a specific research stream within human geography remained largely unanswered.
Ducruet, César, Ng, Koi Yu Adolf
core   +4 more sources

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