Results 131 to 140 of about 6,402,619 (361)

Supernovae from rotating stars

open access: yes, 2017
The present paper discusses the main physical effects produced by stellar rotation on presupernovae, as well as observations which confirm these effects and their consequences for presupernova models.
A Gal-Yam   +52 more
core   +1 more source

3D‐Printed Architected Material for the Generation of Foam‐Based Protective Equipment

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates 3D‐printed architected structures as alternatives to traditional foams in protective gear. It focuses on customizing impact strength and damping through design and manufacturing integration. Testing shows these structures outperform conventional foams, offering enhanced customizability, lower weight, and tunable performance ...
Ali Zolfagharian   +5 more
wiley   +1 more source

Kinetic limitations of cooperativity based drug delivery systems

open access: yes, 2008
We study theoretically a novel drug delivery system that utilizes the overexpression of certain proteins in cancerous cells for cell specific chemotherapy. The system consists of dendrimers conjugated with "keys" (ex: folic acid) which "key-lock" bind to
Alexei V. Tkachenko   +4 more
core   +1 more source

From Nature to Engineering: Mortar Volume and Interfacial Mechanics in Bioinspired Ceramics

open access: yesAdvanced Engineering Materials, EarlyView.
Inspired by natural armors like nacre, this study explores how varying the volume fraction of the soft mortar layer impacts the interfacial strength and toughness of bioinspired ceramics. Experimental and computational analysis reveals that higher mortar volumes increase energy dissipation but reduce interfacial stiffness, offering insights for ...
Ehsan Azad   +4 more
wiley   +1 more source

Open Sesame! Design and Implementation of Backdoor to Secretly Unlock Android Devices

open access: yesJournal of Internet Services and Information Security, 2017
This paper presents a practical design of backdoor to permanently bypass the screen lock mechanisms on Android devices. Our design has many advantages such as difficulty in detecting backdoor, fast execution time and low power consumption.
Junsung Cho   +3 more
doaj   +1 more source

Quality Enhancement of Laser Powder‐Bed Fusion Parts by Acoustically Assisted Additive Manufacturing by Laser Powder‐Bed Fusion and its Application to Lattice Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing technologies like laser powder‐bed fusion offer great design freedom and individualization of products down to a batch size of one. However, parts fabricated with this technology suffer from poor quality. Acoustic assistance during the build process can minimize these drawbacks.
Oliver Maurer, Dirk Bähre
wiley   +1 more source

Voters hold the key: lock-in, mobility, and the portability of property tax exemptions [PDF]

open access: yes
Since California voters approved Proposition 13 in 1978, fifteen states have enacted caps on the annual growth in assessed property values. These laws often impose a great burden on municipal finances and create horizontal inequity among homeowners.
Chris Cunningham, Ron Cheung
core  

Heartbleed's Impact [PDF]

open access: yes, 2014
In early April, a major security flaw affecting perhaps 500,000 or more websites was announced and fixed. But the patch to the "secure socket" program that is supposed to encrypt and protect user information on secure websites was only made after more ...

core  

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