Results 71 to 80 of about 152,450 (318)

Six-Dimensional Space with Symmetric Signature and Some Properties of Elementary Particles

Axioms, 2022
The six-dimensional pseudo-Euclidean space E3,3 with signature (3,3) is proposed as a model of real physical space at the subparticle scale. The conserved quantum characteristics of elementary particles, such as spin, isospin, electric and baryon charges,
Nikolay Popov, Ivan Matveev
doaj   +1 more source

Complements of tori and Klein bottles in the 4-sphere that have hyperbolic structure

, 2005
Many noncompact hyperbolic 3-manifolds are topologically complements of links in the 3-sphere. Generalizing to dimension 4, we construct a dozen examples of noncompact hyperbolic 4-manifolds, all of which are topologically complements of varying numbers ...
Apanasov, Dubravko Ivanšić, Freedman, Gompf, John G Ratcliffe, Lyndon, Ratcliffe, Ratcliffe, Steven T Tschantz   +8 more
core   +1 more source

Data‐driven forecasting of ship motions in waves using machine learning and dynamic mode decomposition

International Journal of Adaptive Control and Signal Processing, EarlyView.
Summary Data‐driven forecasting of ship motions in waves is investigated through feedforward and recurrent neural networks as well as dynamic mode decomposition. The goal is to predict future ship motion variables based on past data collected on the field, using equation‐free approaches.
Matteo Diez, Mauro Gaggero, Andrea Serani   +2 more
wiley   +1 more source

Counting Hyperbolic Components

, 2012
We give formulas for the numbers of type II and type IV hyperbolic components in the space of quadratic rational maps, for all fixed periods of attractive ...
Kiwi, Jan, Rees, Mary
core   +1 more source

On the number of hyperbolic Dehn fillings of a given volume [PDF]

Transactions of the American Mathematical Society, 2021
Let M \mathcal {M} be a 1 1 -cusped hyperbolic 3 3 -manifold whose cusp shape is quadratic. We show that there exists c = c ( M ) c=c(\mathcal {M}) such that the number of hyperbolic Dehn fillings of
openaire   +3 more sources

Statistical Distributions of Morphologically Classified Defects in Metal Additive Manufacturing with Implications for Fatigue Life Prediction

Advanced Engineering Materials, EarlyView.
Morphological features of three defect types in metal additive manufacturing (AM)—lack of fusion, keyhole, and gas‐entrapped pores—are statistically characterized using best‐fit distributions evaluated via coefficient‐of‐determination, Kolmogorov–Smirnov test, and quantile–quantile plots.
Ahmad Serjouei, Golnaz Shahtahmassebi
wiley   +1 more source

Scalable Fabrication of Height‐Variable Microstructures with a Revised Wetting Model

Advanced Engineering Materials, EarlyView.
Height‐variable microstructures are fabricated using a scalable CO2 laser machining approach, enabling precise control of wettability through structural gradients. Classical wetting models fail to capture height‐induced effects, necessitating a revised theoretical framework.
Prabuddha De Saram, Nam‐Trung Nguyen, Navid Kashaninejad   +2 more
wiley   +1 more source

Joule‐Assisted Nanotherapeutic Urethral Stent (JANUS) for Spatiotemporal Theragenerative Treatment of Urethral Strictures

Advanced Functional Materials, EarlyView.
Joule‐assisted nanotherapeutic urethral stent harnesses a smart, biodegradable magnesium stent to orchestrate spatiotemporal theragenerative therapy for urethral strictures. Magnetically induced Joule heating enables on‐demand drug release and bacterial ablation, while simultaneously guiding urothelial regeneration.
Yuhyun Na, Yubeen Park, Hyun Lee, Song Hee Kim, Seojoon Bang, Hyeong Seok Kang, Chan Ho Moon, Ju Yeong Gwon, Jong Hwa Seo, Min‐Ho Kang, Soo‐Hong Lee, Gi Doo Cha, Wooram Park, Heemin Kang, Jung‐Hoon Park, Hyun‐Do Jung   +15 more
wiley   +1 more source

Quintessence and phantom emerging from the split-complex field and the split-quaternion field

, 2015
Motivated by the mathematic theory of split-complex numbers (or hyperbolic numbers, also perplex numbers) and the split-quaternion numbers (or coquaternion numbers), we define the notion of split-complex scalar field and the split-quaternion scalar field.
Chen, Xuelei, Gao, Changjun, Shen, You-Gen   +2 more
core   +1 more source

Kissing number in hyperbolic space

, 2019
This paper provides upper and lower bounds on the kissing number of congruent radius $r > 0$ spheres in $\mathbb{H}^n$, for $n\geq 2$. For that purpose, the kissing number is replaced by the kissing function $ (n, r)$ which depends on the radius $r$.
Dostert, Maria, Kolpakov, Alexander
openaire   +2 more sources