Results 81 to 90 of about 20,271 (289)

Flexoelectricity in Photoconversion: Fundamentals, Materials, and Outlooks

open access: yesAdvanced Science, EarlyView.
Mechanical bending of a flexible cantilever induces a strain gradient in the photoactive material. The resulting flexoelectric field couples with photovoltaic and photoconductive effects, modulating charge generation, separation, and collection. A comparative analysis of oxide perovskites, halide perovskites, and two‐dimensional materials is presented,
Xiang Huang, Feng Li, Rongkun Zheng
wiley   +1 more source

Topological Materials and Related Applications

open access: yesAdvanced Electronic Materials, EarlyView.
This review covers topological materials—including topological insulators, quantum valley Hall and quantum spin Hall insulators, and topological Weyl and Dirac semimetals—as well as their most recent advancements in fields such as spintronics, electronics, photonics, thermoelectrics, and catalysis.
Carlo Grazianetti   +9 more
wiley   +1 more source

Steady state aerothermochemistry for liquid bipropellant rocket motors [PDF]

open access: yes
Model and theoretical equations describing liquid propellant droplet ballistics and combustion gas behavior in bipropellant rocket motors ...
Agosta, V. D., Burstein, S. Z.
core   +1 more source

Case Study: The Boston Gun Project and Operation Ceasefire [PDF]

open access: yes, 2005
The Boston Gun Project was a problem-oriented policing initiative expressly aimed at reducing homicide victimization among youths in Boston in the mid-1990s (Kennedy et al., 1996; Kennedy et al., 2001).

core  

AI‐Guided Co‐Optimization of Advanced Field‐Effect Transistors: Bridging Material, Device, and Fabrication Design

open access: yesAdvanced Intelligent Discovery, EarlyView.
This article outlines how artificial intelligence could reshape the design of next‐generation transistors as traditional scaling reaches its limits. It discusses emerging roles of machine learning across materials selection, device modeling, and fabrication processes, and highlights hierarchical reinforcement learning as a promising framework for ...
Shoubhanik Nath   +4 more
wiley   +1 more source

Initial temperature influence on the powder speed combustion in the high pressure range

open access: yesVojnotehnički Glasnik, 1997
The initial temperature influence on the ballistics characteristics of powder is considered as well as the parameters of gas dynamics calculations. Analytical methods for thermal chemical and interior ballistics calculations are used.
Ljubiša Tančić
doaj   +1 more source

Theoretical study of the ballistics and heat transfer in spinning solid propellant rocket motors [PDF]

open access: yes
Computerized prediction analyses of radial spin acceleration effects on solid propellant rocket motor ballistics and heat ...
Hodge, B. K., Whitesides, R. H., Jr.
core   +1 more source

How Cities Can Combat Illegal Guns and Gun Violence [PDF]

open access: yes, 2006
Though gun violence peaked in American cities in the early 1990s, firearms are still used in more than 30 homicides per day in the U.S.One major challenge is how to stanch the flow of guns to criminals. Researchers from the School's Center for Gun Policy
Daniel W. Webster   +2 more
core  

Smart Denture with Embedded Thin‐Film Temperature Sensors Patterned by Femtosecond Laser Pulse for Elderly Healthcare

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
We demonstrate the direct‐laser patterning of a gold thin film on polymethyl methacrylate to fabricate a temperature sensor for dentures. The temperature sensor‐embedded smart dentures are evaluated in an oral environment, enabling in‐situ monitoring for elderly healthcare.
Han Ku Nam   +7 more
wiley   +1 more source

Numerical Study on Ballistic Phenomena - Part Two

open access: yesThe Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 2016
The study of ballistic phenomena (interior ballistics, exterior ballistics and terminal ballistics) is an activity that involves the use of complex and at the same time very expensive equipment.
Vasile BĂLAN, Marian BORDEI
doaj  

Home - About - Disclaimer - Privacy