Results 101 to 110 of about 790,991 (337)

Dynamics of Black Hole Pairs II: Spherical Orbits and the Homoclinic Limit of Zoom-Whirliness

open access: yes, 2008
Spinning black hole pairs exhibit a range of complicated dynamical behaviors. An interest in eccentric and zoom-whirl orbits has ironically inspired the focus of this paper: the constant radius orbits.
E. Ott   +5 more
core   +1 more source

Fabrication‐Directed Entanglement for Designing Chiral and Anisotropic Metamaterial Foams

open access: yesAdvanced Engineering Materials, EarlyView.
This work introduces fabrication‐directed entanglement (FDE), combining viscous thread printing and topology optimization to program entangled foams with spatially patterned stiffness. By tuning coil density, FDE enables anisotropy, programmable Poisson's ratio, and chirality in foams.
Daniel Revier   +3 more
wiley   +1 more source

Unhinged: Zoom, Crisis, Disabling Communication in the Ivy League

open access: yesSociologica, 2020
Unhinged evokes how institutions of higher learning police their boundaries through codes of professionalism and sanity. It examines what kinds of bodies and minds are permitted to walk across campus grounds, to take up an office, enter a classroom ...
Erin Soros
doaj   +1 more source

Cross section, final spin and zoom-whirl behavior in high-energy black hole collisions

open access: yes, 2009
We study the collision of two highly boosted equal mass, nonrotating black holes with generic impact parameter. We find such systems to exhibit zoom-whirl behavior when fine tuning the impact parameter.
E. Witten   +9 more
core   +1 more source

Numerical Model and Experimental Validation of Composite Metal Foam in Protecting Carbon Steel Against Puncture

open access: yesAdvanced Engineering Materials, EarlyView.
The puncture prevention and energy absorption performance of composite metal foam (CMF) are studied experimentally and numerically for hazardous materials transportation protection. The numerical model implementing air within the CMF (nonhomogeneous model using fluid cavity technique) predicts puncture more accurately compared to the homogeneous CMF ...
Aman Kaushik, Afsaneh Rabiei
wiley   +1 more source

Removing Homocoupling Defects in Alkoxy/Alkyl‐PBTTT Enhances Polymer:Fullerene Co‐Crystal Formation and Stability

open access: yesAdvanced Functional Materials, EarlyView.
PBTTT‐OR‐R, a C14‐alkoxy/alkyl‐PBTTT polymer derivative, is of substantial interest for optoelectronics due to its specific fullerene intercalation behavior and enhanced charge‐transfer absorption. Comparing this polymer with (S) and without (O) homocoupling defects reveals that PBTTT‐OR‐R(O) forms stable co‐crystals with PC61BM, while PBTTT‐OR‐R(S ...
Zhen Liu   +14 more
wiley   +1 more source

Efektivitas Penggunaan Aplikasi Zoom Sebagai Media Pembelajaran Online Pada Mahasiswa Saat Pandemi Covid-19

open access: yesJurnal Communio Jurnal Jurusan Ilmu Komunikasi, 2020
Karena penyebaran covid-19 yang terjadi di Indonesia, seluruh Mahasiswa di Indonesia diwajibkan untuk belajar Online dirumah. ARS University adalah salah satu kampus yang menerapkan pembelajaran online menggunakan aplikasi Zoom.
Junita Monica, Dini Fitriawati
semanticscholar   +1 more source

Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

open access: yesAdvanced Functional Materials, EarlyView.
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal   +10 more
wiley   +1 more source

Practice of using interactive technologies for bachelor of applied computer science training during the COVID-19 pandemic

open access: yesВестник Мининского университета, 2020
Introduction. The relevance of the topic is due to the requirements of the new Federal State Educational Standard (FSES) in the direction of training bachelor's degree 09.03.03 «Applied Informatics», which assumes that university graduates have universal,
A. V. Ponachugin
doaj   +1 more source

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