Results 171 to 180 of about 4,920,342 (393)

A fish stinks from the head: Ethnic diversity, segregation, and the collapse of Yugoslavia [PDF]

open access: yes
Demographic analysis clarifies political issues in the collapse of Yugoslavia. In most regions, 1961-1991, ethnic diversity (estimated by informational entropy) increased and segregation (estimated by Theil’s H) decreased.
Carl Mason   +2 more
core  

Programmable Reconfiguration of Hybrid 4D Chiral Metamaterials via Mechanical and Thermal Stimuli

open access: yesAdvanced Engineering Materials, EarlyView.
A class of hybrid chiral mechanical metamaterials is designed to achieve programmable reconfiguration through soft networks, hinges, and bilayer joints integrated with rigid units. Responsive to mechanical and thermal stimuli, these structures exhibit large volume changes, tunable deformation pathways, and both positive and negative thermal expansion ...
Yunyao Jiang, Siyao Liu, Yaning Li
wiley   +1 more source

Additive Manufacturing of Gradient Stiffness Honeycombs Using Thermoplastic Polyurethane Composite Material Variations

open access: yesAdvanced Engineering Materials, EarlyView.
By combining porous, solid, and carbon fiber‐reinforced thermoplastic polyurethane within a single 3D printed honeycomb structure, this current work achieved precise control over spatial stiffness while ensuring strong interlayer adhesion. The findings demonstrate enhanced energy absorption and densification strain, outperforming traditional uniform ...
Savvas Koltsakidis   +2 more
wiley   +1 more source

The Ethics of Diversity. Towards Lawrence M. Hinman, Ethics: A Pluralistic Approach to Moral Theory

open access: yesIdentities, 2001
Author(s): Bobi Badarevski | Боби Бадаревски Title (English): The Ethics of Diversity. Towards Lawrence M. Hinman, Ethics: A Pluralistic Approach to Moral Theory Title (Macedonian): Етиката на различјето. Кон Lawrence M.
Bobi Badarevski, Saše Tasev
doaj  

Highly Stable Low‐Temperature Phosphate Glass as a Platform for Multimaterial 3D Printing of Integrated Functional Microfluidic Devices

open access: yesAdvanced Engineering Materials, EarlyView.
A highly stable, low‐temperature phosphate glass is developed for multimaterial additive manufacturing of multifunctional microfluidics. Glass, metal conductors, and sacrificial polymer are coprinted, enabling monolithic fabrication. The sacrificial paste forms precise channels and decomposes during sintering.
Babak Mazinani   +2 more
wiley   +1 more source

Representations of Identity and Linguistic Diversity in the Urban Space of Tunisia

open access: yesIdentities, 2007
Author(s): Selim Ben Said | Селим Бен Саид Title (English): Representations of Identity and Linguistic Diversity in the Urban Space of Tunisia Title (Macedonian): Презентирање на идентитетот и лингвистичкиот диверзитет во урбаниот простор на Тунис
Selim Ben Said   +1 more
doaj  

Direct Recycling of Cold Work Tool Steel Swarf into New Cutting Disks via Field‐Assisted Sintering

open access: yesAdvanced Engineering Materials, EarlyView.
Through a sintering method known as field‐assisted sintering technology/spark plasma sintering, cold work tool steel swarf can be directly recycled into new cutting disks. This method is capable of densifying the unconventional powder morphology of swarf, and it can also seal grinding contaminants, such as Al2O3, into the steel matrix.
Monica Keszler   +4 more
wiley   +1 more source

Linking Heat Treatment to Plastic Deformation in Pearlitic Steels Through Mesoscale Modeling

open access: yesAdvanced Engineering Materials, EarlyView.
Surface wear on rail and wheel steels results from surface deformation during use. This research uses mathematical models to forecast the plastic behavior of pearlitic steels, connected to the microstructure formed during heat treatment. While the cooling rate impacts the steels’ strength, the size of prior austenite grains and blocks does not ...
Saham Sadat Sharifi   +5 more
wiley   +1 more source

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