Results 61 to 70 of about 4,323,189 (332)
Factorization of differential operators, quasideterminants, and nonabelian Toda field equations
, 1997 We integrate nonabelian Toda field equations for root systems of types A, B, C, for functions with values in any associative algebra. The solution is expressed via quasideterminants.
Etingof, Pavel +2 more
core +3 more sources
A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems
International Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam +2 more
wiley +1 more source
Curves and cycles on K3 surfaces
, 2013 The notion of constant cycle curves on K3 surfaces is introduced. These are curves that do not contribute to the Chow group of the ambient K3 surface. Rational curves are the most prominent examples.
Huybrechts, Daniel +1 more
core
Advanced Engineering Materials, EarlyView.High‐performance nickel‐based superalloys are often not processible in additive manufacturing (AM) due to hot cracking. The findings in this manuscript propose an efficient method to mitigate cracking and enhance mechanical properties of these alloys by producing a metal matrix composite, contributing to the material and process perspective of the AM ...
Klaus Büßenschütt +3 more
wiley +1 more source
Cordova Psychrophiles Bio-Digester Benefit-Cost and Sensitivity Analysis [PDF]
, 2012 Cordova is located in southcentral part of Alaska, 150 miles southeast of Anchorage, and can be accessed only by boat or plane. The average winter temperature1 varies from 17⁰ F to 28⁰ F (-8⁰ C to -2⁰ C) and the average summer temperature varies from 49⁰
Fay, Ginny +2 more
core
Advanced Engineering Materials, EarlyView.Steel samples are investigated using complementary simulations and measurements. Transmission electron microscopy in bright‐field mode, combined with energy‐dispersive X‐ray spectroscopy maps for titanium and niobium, reveals distinct particle populations. Simulations reproduce these in size and composition.
Marc Laub +3 more
wiley +1 more source
Alaska Energy Statistics 1960-2011 Final Report [PDF]
, 2013 This twenty-sixth edition of the Alaska Energy Statistics reconciles energy data from public sources and makes that data more easily available to the public and stakeholders.
Fay, Ginny +2 more
core
Linking Heat Treatment to Plastic Deformation in Pearlitic Steels Through Mesoscale Modeling
Advanced Engineering Materials, EarlyView.Surface wear on rail and wheel steels results from surface deformation during use. This research uses mathematical models to forecast the plastic behavior of pearlitic steels, connected to the microstructure formed during heat treatment. While the cooling rate impacts the steels’ strength, the size of prior austenite grains and blocks does not ...
Saham Sadat Sharifi +5 more
wiley +1 more source
An unusual presentation of appendicitis: a 23 cm long appendix in Morocco
The Pan African Medical Journal, 2019 The appendix is a diverticulum attached to the caecum. It can have variable lengths and locations. Acute inflammation from long appendix is a diagnostic challenge with unusual signs and symptoms.
Hicham Laraqui +3 more
doaj +1 more source
Nigerian Journal of Surgery, 2016 Torsion of the vermiform appendix is a rare condition detectable only at operation. It can be primary or secondary. This is a case report of 52-year-old female with 180° anti-clockwise rotation of the appendix.
Siddharth Pramod Dubhashi, Bharat Khadav
doaj +1 more source