WorldCat Identities

Luleå tekniska universitet Institutionen för teknikvetenskap och matematik

Overview
Works: 1,084 works in 1,108 publications in 5 languages and 1,106 library holdings
Genres: Conference papers and proceedings 
Roles: Publisher, pub
Publication Timeline
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Most widely held works by Luleå tekniska universitet
Wladyslaw Orlicz (1903-1990) matemático polaco by Lech Maligranda( )

5 editions published between 1991 and 2008 in 3 languages and held by 5 WorldCat member libraries worldwide

This is a brief biography of the Polish mathematician Wladyslaw Orlicz (mostly known for Orlicz spaces), one of the members of Banach's famous Polish school of functional analysis in Lwow (today Lviv in Ukraine) who after World War II organized the Poznan school in this domain. This biography also includes his scientific achievements and many official scientific activities (honors and awards, membership in various scientific societies and editorial boards, etc.)
Numerical and experimental investigation of the Gibson's method by Pontus Jonsson( )

3 editions published between 2007 and 2009 in English and held by 3 WorldCat member libraries worldwide

In order to calculate the efficiency of a hydro power plant some quantities needs to be measured. One of them is the flow rate, which can be difficult to measure with good accuracy. There are several methods for that task. Gibson's method is one of them and has the advantage to be economical and easily installed at the site. In order to achieve accurate results with this method, some criterions must be fulfilled. Two of these criterions are the measuring length must be larger than 10 m and the mean initial velocity times the measuring length should be larger than 50 m2/s. These criterions are rarely fulfilled in low head hydro power plants. This paper presents a numerical analysis of the effects of the connecting tubing between the pressure taps at the conduit and the differential pressure sensor. A one dimensional code programmed in Matlab is used for the numerical simulations where the governing equations, continuity and equation of motion, are discretizised with a second order Godunov-type scheme. The simulations are made for different initial flow rates and different valve closures. The result shows that the tubing has an overall small influence on the calculated flow rate error. A positive bias error appears in all tested cases and has a maximum (1.2 to 1.3 % depending on the test case) at the smallest Reynolds number
Alfred Rosenblatt (1880-1947) by Danuta Ciesielska( )

2 editions published in 2014 in Polish and held by 2 WorldCat member libraries worldwide

The aim of the paper is to present scientific and educationalachievements of Alfred Rosenblatt (1880-1947). We have collected thefirst complete list of scientific papers and books by Rosenblatt. Thelist is divided into the following parts: textbooks and monographs, scientificarticles in the field of mathematics and its applications, astronomy, history of mathematics and reviews, translations and other. Frompublished and unpublished sources we collected information about hislectures and short presentations on conferences, among others on InternationalCongresses of Mathematicians, Congresses of Mathematiciansof Slavic Countries, Polish Mathematical Society Meetings and others.Complete list of Rosenblatt's academic lectures at the Jagiellonian Universityand available information about lectures at the National Universityof San Marcos in Lima are collected. A very short biographyof Rosenblatt and overview of his scientific results in algebraic geometry, differential equations, analytic function, calculus of variations, probability theory and statistics, and application of mathematics inhydrodynamic is presented. Streszczenie Celem artykułu jest zaprezentowanie dorobku naukowegoi dydaktycznego Alfreda Rosenblatta (1880-1947). Zgromadzilsmypierwszy kompletny spis jego artykułów i ksiazek naukowych, z podziałem na: podreczniki i monografie, artykuły naukowe z zakresumatematyki i jej zastosowan, astronomii, historii matematyki w tymbiografie oraz recenzje, tłumaczenia i inne. Zebralismy w publikowanychi niepublikowanych zródłach informacje o jego odczytach, w tymo odczytach i komunikatach na Miedzynarodowych Kongresach Matematyków, wystapieniach na Kongresach Matematyków Krajów Słowianskich, Zjazdach PTM i innych. Przedstawilismy kompletny spiswykładów Rosenblatta na Uniwersytecie Jagiellonskim oraz dostepneinformacje o wykładach na Uniwersytecie Swietego Marka w Limie. Ponadtow artykule znajduje sie krótki biogram A. Rosenblatta i krótkieomówienie jego wyników naukowych z geometrii algebraicznej, teoriirównan rózniczkowych, funkcji analitycznych, rachunku wariacyjnego, szeregów, rachunku prawdopodobienstwa i statystyki oraz zastosowanmatematyki w hydrodynamice
Antoni Lomnicki (1881-1941) by Lech Maligranda( )

2 editions published between 2006 and 2008 in Polish and held by 2 WorldCat member libraries worldwide

Economic lifetime of a drilling machine: a case study on mining industry by Hussan Hamodi( )

2 editions published between 2013 and 2015 in English and held by 2 WorldCat member libraries worldwide

Underground mines use many different types of machinery duringthe drift mining processes of drilling, charging, blasting, loading, scaling andbolting. Drilling machines play a critical role in the mineral extraction processand thus are important economically. However, as the machines age, theirefficiency and effectiveness decrease, negatively affecting productivity andprofitability and increasing total cost. Hence, the economic replacementlifetime of the machine is a key performance indicator. This paper introducesan optimisation model that gives the optimal lifetime for a drilling machine. Acase study has been done at an underground Swedish mine to identify theeconomic replacement time of a drilling machine. It considers the purchaseprice, maintenance and operation costs, and the machine's second-hand value. Findings show that the economic replacement lifetime of a drilling machine inthis mine is 96 months. The proposed model can be used for other undergroundmining machines
Nätpåverkan av lågenergibelysning populär version by Sarah Rönnberg( )

2 editions published in 2009 in Swedish and held by 2 WorldCat member libraries worldwide

Stefan Kaczmarz (1895-1939) by Lech Maligranda( )

2 editions published between 2007 and 2008 in Polish and held by 2 WorldCat member libraries worldwide

Digital holographic interferometry in a disturbed environment by Henrik Lycksam( )

2 editions published between 2007 and 2009 in English and held by 2 WorldCat member libraries worldwide

Digital holographic interferometry is an optical measurement technique that is capable of measuring the movement/deformation of an object surface with extremely high accuracy, spatial resolution and temporal resolution. But, because it is very sensitive to disturbances, it is mostly used in well controlled laboratory environments. An exciting new application of the method could be for process supervision in the manufacturing industry. But before it can be used in such an environment it must be made more insensitive to disturbances. The work in this thesis deals with post processing of data from holographic interferometry measurements to reduce the effects of mechanical vibrations and random refractive index fluctuations in the surrounding air. The first approach of using a purely temporal interference filter was successful in reducing the noise due to vibrations, but the noise from the air disturbance was only reduced over a very limited spatial region. A more complete spatio-temporal filter that is not of the interference type requires that the spatio-temporal statistics of the noise from the air can be measured. Therefore the rest of the work is devoted to this problem. The method developed is applied to the relatively simple case of locally homogenous/isotropic refractive index fluctuations generated in a small wind tunnel. There is a simple theory for these types of fluctuations for which the method was successfully verified
Proceedings of the International Symposium on Banach and Function Spaces : Kyushu Institute of Technology, Kitakyushu, Japan, 2-4 October 2003 by International Symposium on Banach and Function Spaces( )

2 editions published between 2004 and 2008 in English and held by 2 WorldCat member libraries worldwide

A hybrid perturbed-chain SAFT density functional theory for representing fluid behavior in nanopores by Gongtian Shen( )

2 editions published in 2013 in English and held by 2 WorldCat member libraries worldwide

A hybrid statistical mechanical model, which is fully consistent with the bulk perturbed-chain statistical associating fluid theory (PC-SAFT) in describing properties of fluids, was developed by coupling density functional theory with PC-SAFT for the description of the inhomogeneous behavior of real chain molecules in nanopores. In the developed model, the modified fundamental measure theory was used for the hard sphere contribution; the dispersion free energy functional was represented with weighted density approximation by averaging the density in the range of interaction, and the chain free energy functional from interfacial statistical associating fluid theory was used to account for the chain connectivity. Molecular simulation results of the density profile were compared with model prediction, and the considerable agreement reveals the reliability of the proposed model in representing the confined behaviors of chain molecules in an attractive slit. The developed model was further used to represent the adsorptions of methane and carbon dioxide on activated carbons, in which methane and carbon dioxide were modeled as chain molecules with the parameters taken from the bulk PC-SAFT, while the parameters of solid surface were obtained from the fitting of gas adsorption isotherms measured experimentally. The results show that the model can reliably reproduce the confined behaviors of physically existing substances in nanopores
Wladyslaw Orlicz (1903-1990) - Polish mathematician by Lech Maligranda( )

2 editions published between 2007 and 2009 in Chinese and English and held by 2 WorldCat member libraries worldwide

This is a brief biography of the Polish mathematician Władysław Orlicz (mostly known for Orlicz spaces), one of the members of the famous Lwów School of Mathematics (Polish School of Analysis in Lwów) who after World War II organized the Poznań School of Mathematics. This biography also includes his scientific achievements and many official scientific activities (honors and awards, membership in various scientific societies and editorial boards). There is a special section about Orlicz's connection to China and Chinese mathematicians
Structure of Cesaro function spaces a survey by Sergey V Astashkin( )

2 editions published between 2009 and 2014 in English and held by 2 WorldCat member libraries worldwide

The structure of the Cesàro function spaces Cesp on both [0,1] and [0, ∞) for 1 < p ≤ ∞ is investigated. We find their dual spaces, which equivalent norms have different description on [0, 1] and [0, ∞).The spaces Cesp for 1 < p < ∞ are not reflexive but strictly convex. They are not isomorphic to any Lq space with 1 ≤ q ≤ ∞. They have "near zero" complemented subspaces isomorphic to lp and "in the middle" contain an asymptotically isometric copy of l1 and also a copy of L1[0, 1]. They do not have Dunford-Pettis property but they do have the weak Banach-Saks property. Cesàro function spaces on [0, 1] and [0, ∞) are isomorphic for 1 < p ≤ ∞. Moreover, we give characterizations in terms of p and q when Cesp[0, 1] contains an isomorphic copy of lq
Eustachy Zylinski (1889-1954) by Lech Maligranda( )

2 editions published between 2009 and 2015 in Polish and held by 2 WorldCat member libraries worldwide

Eustachy Zylinski was a Polish mathematician, working in number theory, algebra, logicand foundations of mathematics. He has written over 20 scientific papers and academic text-bookin analytic geometry, and, jointly with Stanisław Ruziewicz, one academic text-book and theother text-book for secondary schools. In the period 1919-1939 he was working at the Universityof Jan Kazimierz in Lvov and was a memeber of the so-called Lvov School of Mathematics. After the war, in the period 1946-1951 he was working at the Silesian University of Technologyin Gliwice. His life and scientific achievements are carefully described in [Ma09]. Here I present a shorter version of the description, completing information on Gliwice periodEustachy Zylinski był polskim matematykiem pracujacym w teorii liczb, algebrze, logice i podstawach matematyki. Napisał ponad 20 prac naukowych, podrecznik akademicki z geometrii analitycznej oraz wspólnie ze Stanisławem Ruziewiczem, podrecznik akademicki i trzyczesciowy podrecznik szkolny. W latach 1919-1939 pracował na Uniwersytecie Jana Kazimierza we Lwowie i był członkiem tzw. Lwowskiej Szkoły Matematycznej. Po wojnie w latach 1946-1951 pracował w Gliwicach na Politechnice Slaskiej. Zycie i dorobek naukowy, wraz z pełnym spisem prac naukowych oraz ksiazek Zylinskiego, zostały dokładnie opisane w pracy [Ma09]. Tutaj przedstawiam krótsza wersj{e tego opisu, ale uzupełniam wiadomosci o okres gliwicki
Convexity, concavity, type and cotype of Lorentz spaces by Anna Kamińska( )

2 editions published between 1996 and 1998 in English and held by 2 WorldCat member libraries worldwide

Development of a continuous wood surface densification process the roller pressing technique by Meeting of the Wood Science and Engineering : 14/09/2015 - 15/09/2015( )

2 editions published between 2015 and 2016 in English and held by 2 WorldCat member libraries worldwide

Preon trinity a schematic model of leptons, quarks and heavy vector bosons by Jean-Jacques Dugne( )

2 editions published between 1999 and 2002 in English and held by 2 WorldCat member libraries worldwide

Quarks, leptons and heavy vector bosons are suggested to be composed of stable spin- (1/2) preons, existing in three flavours, combined according to simple rules. Straightforward consequences of an SU(3) preon-flavour symmetry are the conservation of three lepton numbers, oscillations and decays between some neutrinos, and the mixing of the d and s quarks, as well as of the vector fields W0 and B0. We find a relation between the Cabibbo and Weinberg mixing angles, and predict new (heavy) leptons, quarks and vector bosons, some of which might be observable at the Fermilab Tevatron and the future CERN LHC. A heavy neutrino might even be visible in existing data from the CERN LEP facility
On interpolation in Lp spaces by S Astashkin( )

2 editions published in 2003 in Russian and English and held by 2 WorldCat member libraries worldwide

Effects of inlet boundary conditions on spiral casing simulation by Svenska Mekanikdagar 2007 : 13/06/2007 - 15/06/2007( )

2 editions published in 2007 in English and held by 2 WorldCat member libraries worldwide

A European bencmarking of continuity of supply regulation by International Conference on Electricity Distribution : 10/06/2013 - 13/06/2013( )

1 edition published in 2013 in English and held by 1 WorldCat member library worldwide

The Council of European Energy Regulators has been publishing Benchmarking Reports on the Quality of Electricity Supply since 2001. For the 5th edition of the Benchmarking Report the 29 member countries of CEER were joined by the 9 NRAs from the Energy Community and the NRA from Switzerland. This paper contains the main results, findings and recommendations on continuity of supply from the latest edition of the Benchmarking Report
Effects of pH on lap-shear strength for aspen veneer by Xiaodong Alice Wang( )

1 edition published in 2013 in English and held by 1 WorldCat member library worldwide

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Luleå tekniska universitet Department of Engineering Sciences and Mathematics

Luleå tekniska universitet Engineering Sciences and Mathematics

Luleå tekniska universitet Teknikvetenskap och matematik

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