Results 181 to 190 of about 1,243,102 (324)

The emergence of 3D-printed firearms: An analysis of media and law enforcement reports

open access: gold
Stefan Schaufelbühl   +3 more
openalex   +1 more source

Exploratory Study on Carbon Dioxide Blends With Low‐GWP Working Fluids for Medium and High‐Temperature Heat Pumps Under Step Pressure

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study investigates binary zeotropic mixtures of R744 (CO₂) blended with eco‐friendly refrigerants for medium‐high temperature heat pumps, comparing them with conventional R744/R134a systems. All mixtures meet 60–80 K temperature lift requirements under low‐temperature conditions. A genetic algorithm optimized system parameters using fixed
Lingling Sun   +6 more
wiley   +1 more source

Efficient Dynamics: Reduced‐Order Modeling of the Time‐Dependent Schrödinger Equation

open access: yesAdvanced Physics Research, EarlyView.
Reduced‐order modeling (ROM) approaches for the time‐dependent Schrödinger equation are investigated, highlighting their ability to simulate quantum dynamics efficiently. Proper Orthogonal Decomposition, Dynamic Mode Decomposition, and Reduced Basis Methods are compared across canonical systems and extended to higher dimensions.
Kolade M. Owolabi
wiley   +1 more source

Can Motivation and Self-Efficacy Predict a Law Enforcement Officer's General and Job-Specific Fitness? [PDF]

open access: yesInt J Exerc Sci
Lockie RG   +6 more
europepmc   +1 more source

Dr. Hans Kohn and the political takeover of the Berlin Medical Society by the National Socialist regime in 1933

open access: yesThe Anatomical Record, EarlyView.
Abstract To solidify their power over society, totalitarian regimes will usually eliminate any dissent, any perceived threats early on. These threats include not only political enemies but also educated and independent segments of society, such as professional associations.
Michael Hortsch
wiley   +1 more source

Criminal legal and behavioral health pathways in law enforcement-petitioned extreme risk protection orders. [PDF]

open access: yesInj Epidemiol
Conrick KM   +7 more
europepmc   +1 more source

Underground web: the cybercrime challenge [PDF]

open access: yes
The two papers in this Special Report examine the central role that cybercrime plays in modern society and how technological developments create new opportunities for criminals to exploit.
Andrew Colvin   +2 more
core  

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