Results 81 to 90 of about 7,703,271 (262)

Mathematical theory of improvability for production systems [PDF]

Mathematical Problems in Engineering, 1995
A mathematical model for continuous improvement processes in production systems is formulated. Both constrained and unconstrained cases are addressed. A solution for the case of a serial production line with finite buffers and a Bernoulli model of machines reliability is given.
David Jacobs, Semyon M. Meerkov
openaire   +2 more sources

Mathematical considerations of nonhomogeneous production processes

Linear Algebra and its Applications, 1977
AbstractA production process in which the production matrix changes with respect to time is called a nonhomogeneous production process. This paper gives several mathematical results on these nonhomogeneous production processes.
openaire   +2 more sources

Antibacterial Activity of Germacrane Type Sesquiterpenes from Curcuma heyneana Rhizomes

Indonesian Journal of Chemistry, 2014
The isolation of terpenoids from C. heyneana rhizomes and their antibacterial activity have been conducted. The terpenoids were isolated by using vacuum liquid chromatography and radial chromatography.
Hartiwi Diastuti, Yana Maolana Syah, Lia Dewi Juliawaty, Marlia Singgih   +3 more
doaj   +1 more source

Bounds for Tur\'anians of modified Bessel functions

, 2013
Motivated by some applications in applied mathematics, biology, chemistry, physics and engineering sciences, new tight Tur\'an type inequalities for modified Bessel functions of the first and second kind are deduced.
Alexandrov, Amos, Baricz, Baricz, Baricz, Baricz, Baricz, Baricz, Baricz, Baricz, Baricz, Bertini, Bhattacharya, Erdélyi, Fabrizi, Giorgi, Giorgi, Grandison, Gronwall, Hamsici, Hamsici, Hamsici, Hartman, Hartman, Hartman, Hasan, Ismail, Ismail, Ismail, Joshi, Klimek, Kokologiannaki, Laforgia, Laforgia, Lechleiter, Lombardo, Lorch, Lushnikov, Marchand, Marchand, Marchand, Nasell, Paltsev, Penfold, Phillips, Radwan, Radwan, Robert, Schlenk, Segura, Simitev, Simon, Tanabe, Thabane, Thiruvenkatachar, van Haeringen, Watson, Watson, Árpád Baricz   +58 more
core   +1 more source

DEVELOPMENT OF GEOMETRY MOBILE LEARNING TO ENHANCE STUDENTS' MATHEMATICS LEARNING INTEREST

Barekeng
The development research aims to produce a mobile learning application for geometry to enhance students' interest in learning mathematics. The product encompasses solid geometry materials for 7th-grade junior high school students. The development process
Ana Muliyana, Adi Wibowo Panjaitan, Frengki Simatupang   +2 more
doaj   +1 more source

Finite-Dimensional Representations of Hyper Loop Algebras

, 2006
We study finite-dimensional representations of hyper loop algebras, i.e., the hyperalgebras over an algebraically closed field of positive characteristic associated to the loop algebra over a complex finite-dimensional simple Lie algebra.
Jakelic, Dijana, Moura, Adriano
core   +4 more sources

Mathematics as a cultural product

, 1999
In this short introduction, we report on the main points discussed in our group during the Conference, as well as some problems that appeared to be important issues for future research. One of the main issues in our group's discussion was that mathematics is a complex cultural product so we begin with that.
Azzarello, Ferdinando, Dorier, Jean-Luc, Hefendehl-Hebeker, Lisa, Turnau, Stefan   +3 more
openaire   +2 more sources

Some Exceptional Cases in Mathematics: Euler Characteristic, Division Algebras, Cross Vector Product and Fano Matroid [PDF]

, 2011
We review remarkable results in several mathematical scenarios, including graph theory, division algebras, cross product formalism and matroid theory. Specifically, we mention the following subjects: (1) the Euler relation in graph theory, and its higher-
Nieto, J. A.
core  

Mathematics Ability and Anxiety, Computer and Programming Anxieties, Age and Gender as Determinants of Achievement in Basic Programming

, 2014
Computer programming which forms the major component of most technological inventions is perceived by most computer science students as difficult. Some researchers have also reported that failure rates in programming courses are between 30% and 40%.
J. Owolabi, P. Olanipekun, J. Iwerima
semanticscholar   +1 more source

Penggunaan Prezi untuk Media Pembelajaran Matematika Materi Fungsi

Desimal, 2019
This study aims to develop prezi-based mathematics learning media to increase interest in learning in the function material. The media developed is a mathematics learning media using Prezi software.
Rohiman Rohiman, Bambang Sri Anggoro
doaj   +1 more source