Results 91 to 100 of about 1,963 (265)

Graphitic Carbon Nitride‐Based Microrobots: Progress and Prospects in Environmental and Biomedical Applications

open access: yesSmall, EarlyView.
This Review summarizes recent progress in g‐C3N4‐based microrobots, including fabrication strategies for different morphologies and their main propulsion mechanisms. Their applications in environmental remediation and biomedicine, including water purification, antibacterial therapy, and drug delivery, are discussed.
Yunhuan Yuan, Martin Pumera
wiley   +1 more source

Anisotropic Thermal Properties of Electrically Insulating Thin Films and Sheets: A Review

open access: yesSmall Methods, EarlyView.
Thermally conducting and electrically insulating materials with anisotropy properties play an integral role in advanced thermal management, in particular for electronic devices. This review discusses recent progress in enhancing thermal conductivity and controlling the thermal anisotropy between in‐plane and cross‐plane (through‐thickness) directions ...
Shanmukhi Sripada   +3 more
wiley   +1 more source

Programmable Porosity in Polymers via Microfluidic Templating and 3D Printing

open access: yesSmall Methods, EarlyView.
Fluid templating is a powerful way to produce porous polymers. Microfluidic technologies enable fine control over the dimension and packing of bubbles and droplets. Combined with additive manufacturing, microfluidic templating enables the creation of polymeric functionally graded porous materials in which both porosity and three‐dimensional geometry ...
Federico Serpe   +3 more
wiley   +1 more source

Crash Behavior of DP800–DP1000 Advanced High‐Strength Steel’s Dissimilar Resistance Spot Welded Joints Under Quasi‐static and High Strain Rates

open access: yessteel research international, EarlyView.
The high‐strain‐rate behavior of resistance spot‐welded DP800–DP1000 joints is investigated. Results show that microstructural gradients across BM–HAZ–FZ govern hardness, strain rate sensitivity, and failure modes. While strength increases with strain rate, energy absorption is controlled by ductility, with DP800–DP800 joints showing superior ...
Pankaj Shrivastava, Velaphi Msomi
wiley   +1 more source

Effect of Different Surface Treatments on Resistance to Abrasive Wear of AISI 4140 Steel

open access: yessteel research international, EarlyView.
This study investigates how different surface treatments affect resistance to abrasive wear of AISI 4140 Steel. The wear rate was significantly higher in samples subjected to conventional treatments than in samples coated using the HVOF process, demonstrating the superior efficiency of coatings applied by thermal spraying in mitigating abrasive wear ...
Everton Freitas de Oliveira   +3 more
wiley   +1 more source

Recent Advances in Oriented Hydrogels: From Fundamental Mechanisms to Future Challenges

open access: yesSusMat, EarlyView.
Traditional hydrogels suffer from weak mechanical properties and limited functionality due to their random polymer networks. This review comprehensively summarizes the reinforcement mechanisms of oriented structure for hydrogels, the design/fabrication strategies, and the latest application progress of high‐strength oriented hydrogels.
Chang Xu, Xijing Zhuang
wiley   +1 more source

Análisis numérico del ámbito de validez del modelo convencional de tiro oblicuo

open access: yesRevista Brasileira de Ensino de Física
En una encuesta de diagnóstico planteada a estudiantes del ciclo básico universitario sobre el tema de tiro oblicuo, se obtiene un alto porcentaje de respuestas incorrectas sobre estimaciones referidas al roce del aire y otros fenómenos que influyen en ...
César Medina, Leonor Colombo de Cudmani
doaj   +1 more source

The Reflexive Turn in Systems Engineering: A Disciplinary Response to Complexity

open access: yesSystems Engineering, EarlyView.
ABSTRACT The Future of Systems Engineering (FuSE) programme has called for the discipline to evolve as a transdiscipline capable of engaging complex eco‐socio‐technical challenges. Yet the pace of that evolution has been slower than the arguments for it would predict. This article examines why.
Raul Leal Ascencio
wiley   +1 more source

Virtual Surgical Planning for Management of Acute Maxillofacial Trauma

open access: yesCraniomaxillofacial Trauma & Reconstruction
Study design: A retrospective case series. Objective: The management of acute complex maxillofacial trauma is challenging. The intricate maxillofacial anatomy coupled with the significant functional and aesthetic repercussions of traumatic facial ...
Kyle W. Singerman   +4 more
doaj   +1 more source

What Is the Return on Investment of Digital Engineering for Complex Systems Development Schedules? Findings From a Mixed‐Methods Case Study on the Post‐Production Design Change Processes of Navy Assets

open access: yesSystems Engineering, EarlyView.
ABSTRACT Complex engineered systems routinely face schedule and cost overruns, along with poor post‐deployment performance. Both INCOSE and the U.S. Department of Defense (DoD) have championed Digital Engineering (DE) as a potential remedy, yet most of DE's purported benefits remain anecdotal, and its return on investment (ROI) remains poorly ...
Jannatul Shefa, Taylan G. Topcu
wiley   +1 more source

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