205 research outputs found
Richard Stillwell, W. A. Campbell, Glanville Downey, Nabih A. Faris, Jean Lassus et Donald N. Wilber. — Antioch on-the-Orontes, II.
No full textDussaud René. Richard Stillwell, W. A. Campbell, Glanville Downey, Nabih A. Faris, Jean Lassus et Donald N. Wilber. — Antioch on-the-Orontes, II.. In: Syria. Tome 20 fascicule 3, 1939. p. 269
Antioch on-the-Orontes. II. The Excavations, 1933-1936, Edited by Richard Stillvell (contributors : W. A. Campbell, Nabih A. Faris, Glanville Downey, Jean Lassus, Donald N. Wilber), 1938
No full textBlanchet Adrien. Antioch on-the-Orontes. II. The Excavations, 1933-1936, Edited by Richard Stillvell (contributors : W. A. Campbell, Nabih A. Faris, Glanville Downey, Jean Lassus, Donald N. Wilber), 1938. In: Journal des savants, Mars-avril 1939. pp. 88-90
Antioch on-the-Orontes. II. The Excavations, 1933-1936, Edited by Richard Stillvell (contributors : W. A. Campbell, Nabih A. Faris, Glanville Downey, Jean Lassus, Donald N. Wilber), 1938
No full textBlanchet Adrien. Antioch on-the-Orontes. II. The Excavations, 1933-1936, Edited by Richard Stillvell (contributors : W. A. Campbell, Nabih A. Faris, Glanville Downey, Jean Lassus, Donald N. Wilber), 1938. In: Journal des savants, Mars-avril 1939. pp. 88-90
Ibn Kamal Pasha (m. 940 H/ 1533-1534), al-Tanbīh ʿalā ġalaṭ al-ǧāhil wa-l-nabih, édité et présenté par Mohammed Sawaie. Institut français de Damas, Damas, 1994
No full textAyoub Georgine. Ibn Kamal Pasha (m. 940 H/ 1533-1534), al-Tanbīh ʿalā ġalaṭ al-ǧāhil wa-l-nabih, édité et présenté par Mohammed Sawaie. Institut français de Damas, Damas, 1994. In: Bulletin critique des annales islamologiques, n°13, 1997. pp. 16-19
BIM-based development of bill of materials with case studies
No full textV nalogi so poudarjene raziskave in metodologije, ki vplivajo na BIM (Building Information Modeling), začenši s problemi, ki nastanejo po modelu projekta v 3., 4. in 5. dimenzijo. Večina projektov BIM se ustavi po izdelavi modela in ga ne uporablja za urnike in predmete (4D in 5D).
Raziskava se je začela z raziskavo, ki so jo opravile družbe po vsem svetu. Podjetja so izbrana na podlagi njihovih izkušenj v 4. in 5. dimenziji v BIM in Quantity Surveying. Pa tudi njihove pripombe glede prednosti in slabosti postopka, kot so čas, cena, kakovost in natančnost. Podjetja imajo veliko pomislekov, kot so raven varnosti v projektu in natančni odčitki, ki jih ustvari projekt.
Najprej tradicionalni slog generacije BOQ (Manual) uporabljajo številna podjetja. Študija primera je bila uvedena, rezultat pa uporabljen v naslednjem koraku raziskave. Kasneje je bil narejen poltradicionalni slog (z uporabo CostX). Načrti PDF iz modelov so bili izvlečeni in nato uvoženi v programsko opremo, odčitki so bili zabeleženi v količinskem vzletu (QTO) in nato organizirani v novi predlogi merilne predloge za količino. Nenazadnje je bil za generiranje odčitkov, ki so bili pozneje generirani v predlogi za količino, uporabljen prototipni vtičnik. Višja kot je raven podrobnosti (LOD) projekta, natančnejše bo branje.
Za zaključek bomo model preizkusili v treh metodah BOQ (tradicionalni, polpreizkusni, vtični). Končno branje (tradicionalno, poltradicionalno, plug-in) dobijo strokovnjaki, rezultat pa je bil ocenjen na podlagi več zadev, kot so čas, natančnost in predloga, podatki pa bodo analizirani, da bodo oblikovani zaključki in oblikovana vprašanja za prihodnost raziskave. Pregled QTO in BOQ s povratnimi informacijami je narejen s prilagoditvijo NRM II. Raziskava je preizkušena na vseh celinah. Zato najdemo pametno in praktično rešitev, ki bo revolucionirala metodologijo razmišljanja poklica geometarja. Opravljen je poskusni preizkus pravega modela, rezultat pa pregledajo strokovnjaki s tega področja, ki je projekt prenove Akademije za glasbo v Ljublijani v Sloveniji.This thesis emphasizes the research and methodology impacting BIM (Building Information Modelling), beginning with the problems arising after the project is modeled to its 3rd, 4th, and 5th dimensions. Most BIM projects stop after the model is done and not use it for Schedules and Bill of Quantities (4D and 5D).
The research started with a survey, taken by companies all around the world. The companies are selected based on their experience in the 4th and 5th dimension in BIM and Quantity Surveying. As well as hearing their comments regarding the advantages and disadvantages of the process, such as time, price, quality, and accuracy. There are a lot of concerns that are common between firms such as the level of security in the project and the accurate readings generated from the project.
First of all, The traditional style of BOQ generation (Manual) is used by many firms, The case study got implemented and the result is used in the next step of the research. Later on, a semi-traditional style was done (using CostX). PDF plans from the models were extracted and then imported to the software, the readings were recorded in the Quantity Takeoff (QTO) and then organized in the New Rules of Measurement Bill of Quantity Template. Last but not least, a prototype plug-in was used to generate the readings in which later generated organized in the Bill of Quantity template. The higher the Level of Detail (LOD) of the project, the more accurate the reading will be.
To conclude, the model will be tested in three BOQ methods (Traditional, Semi Intervention, Plug-in). The final reading (traditional, Semi-traditional, Plug-in) is given to experts and the outcome was graded based on several matters such as time, accuracy, and template, and the data will be analyzed to draw conclusions and formulate questions for future research. A feedback review of the QTO and BOQ is done with NRM II adaption. The research is tested on all continents. Therefore, finding a smart and practical solution that will revolutionize the thinking methodology of the quantity surveyor profession. A test trial of a real model is done and the outcome is reviewed by experts in that field, its a refurbishment project of a music academy located in Ljublijana, Slovenia
L1 solution of overdetermined systems of linear equations
No full textIn a previous paper by the author, an algorithm for calculating the L1 solution of an overdetermined system of linear equations was given. This algorithm applies a dual simplex method to the linear programming formulation of the L1 approximation problem. For the purpose of numerical stability, the present paper uses a triangular decomposition to the basis matrix. This decomposition method is a new one and is particularly suitable to this algorithm. Numerical results show that the present method compares favorably with the best existing algorithms.Peer reviewed: YesNRC publication: Ye
A program for the solution of ill-posed linear systems arising from the discretization of the Fredholm integral equation of the first kind
No full textAbstract
A computer program written in FORTRAN IV for obtaining smooth solutions of ill-posed systems of linear equations arising from the discretization of the Fredholm integral equation of the first kind is given. It is based on a novel algorithm by the author. The algorithm is iterative using linear programming techniques and is numerically stable. Numerical results show that it gives accuracy comparable to the truncated singular value decomposition method, yet it is about 2 to 5 times faster. The ...
Title of program: MLS
Catalogue Id: ABLZ_v1_0
Nature of problem
Fredholm integral equation of the first kind arises in the mathematical analysis of many physical problems. Among these are in optics, the restoration of blurred images.
Versions of this program held in the CPC repository in Mendeley Data
ABLZ_v1_0; MLS; 10.1016/0010-4655(90)90064-8
This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019
Hybrid inorganic-polymer coatings prepared via miniemulsion process
No full textA synthetic route was designed for the incorporation of inorganic materials within water-based miniemulsions with a complex and adjustable polymer composition. This involved co-homogenization of two inverse miniemulsions constituting precursors of the desired inorganic salt dispersed within a polymerizable continuous phase, followed by transfer to a direct miniemulsion via addition to an o/w surfactant solution with subsequent homogenization and radical polymerization. To our knowledge, this is the first work done where a polymerizable continuous phase has been used in an inverse (mini)emulsion formation followed by transfer to a direct miniemulsion, followed by polymerization, so that the result is a water-based dispersion. The versatility of the process was demonstrated by the synthesis of different inorganic pigments, but also the use of unconventional mixture of vinylic monomers and epoxy resin as the polymerizable phase (unconventional as a miniemulsion continuous phase but typical combination for coating applications). Zinc phosphate, calcium carbonate and barium sulfate were all successfully incorporated in the polymer-epoxy matrix. The choice of the system was based on a typical functional coatings system, but is not limited to. This system can be extended to incorporate various inorganic and further materials as long as the starting materials are water-soluble or hydrophilic. rnThe hybrid zinc phosphate – polymer water-based miniemulsion prepared by the above route was then applied to steel panels using autodeposition process. This is considered the first autodeposition coatings process to be carried out from a miniemulsion system containing zinc phosphate particles. Those steel panels were then tested for corrosion protection using salt spray tests. Those corrosion tests showed that the hybrid particles can protect substrate from corrosion and even improve corrosion protection, compared to a control sample where corrosion protection was performed at a separate step. Last but not least, it is suggested that corrosion protection mechanism is related to zinc phosphate mobility across the coatings film, which was proven using electron microscopy techniques.Eine neuartige synthetische Route zur Einlagerung von anorganischen Materialien in wässrige Miniemulsionen einer komplexen und variablen polymeren Zusammensetzung wurde entwickelt. Das Synthesekonzept basiert auf der Co-Homogenisierung zweier inverser Miniemulsionen, welche die Vorstufen der gewünschten anorganischen Pigmente als wässrige Lösungen, dispergiert in einer polymerisierbaren kontinuierlichen Phase enthalten. Durch die Addition einer wässrigen Lösung eines o/w Tensids und nachfolgender Homogenisierung wurde im nächsten Schritt die Bildung einer direkten Miniemulsion - welche die inverse Miniemulsion als disperse Phase enthält - induziert. Die freie radikalische Polymerisation der so gebildeten Monomertropfen resultierte in einer wässrigen Dispersion polymerer Hybrid-Nanopartikel. Diese Methode wurde im Rahmen dieser Arbeit erstmals beschrieben und zeichnet sich durch eine besondere Vielseitigkeit bezüglich der verwendbareren anorganischen Pigmente und der polymerisierbaren Komponenten aus. Es konnte gezeigt werden, dass sich Zinkphosphat, Calciumcarbonat und Bariumsulfat erfolgreich in Polymer-Epoxy Matrices einbetten ließen. Hierbei stellt die Verwendung der Mischung aus Vinylmonomeren und Epoxyharz (etabliert in Beschichtung-Anwendungen) als kontinuierliche Phase in der inversen Miniemulsion ein neuartiges Konzept dar. Das untersuchte System basiert auf einer typischen, etablierten Materialkombination, welche in der Beschichtungsindustrie Anwendung findet. Darüberhinaus lässt sich jedoch das hier entwickelte Verfahren zur Einbettung von speziellen Materialien in polymere Matrices auf eine Vielzahl von (anorganischen) Komponenten erweitern. Die einzige Voraussetzung hierbei ist die Wasserlöslichkeit der entsprechenden Vorstufen. rnDie synthetisierten wässrigen Dispersionen der Hybrid-Nanopartikel aus Zinkphosphat in einer polymeren Matrix wurden in weiteren Untersuchungen dazu verwendet Probenkörper aus Stahl zu beschichten. Hierzu wurde in Analogie zu industriellen Beschichtungsverfahren, der sogenannte autodeposition Prozess verwendet. Hierbei stellt die Verwendung einer wässrigen Dispersion polymerer Partikel, welche eingebettete Zinkphosphat-Pigmente beinhalten, eine Neuerung dar. rnDie beschichteten Stahlplatten wurden bezüglich ihrer Korrosionsbeständigkeit mittels eines Salz-Sprüh Verfahrens untersucht. Diese Untersuchungen zeigten, dass die Beschichtungen mit den neuartigen Hybrid-Nanopartikeln die Korrosion erfolgreich reduzieren konnten. Im Vergleich zu etablierten Verfahren, welche auf einer Einlagerung von Zinkphosphat vor dem Aufbringen einer polymeren Schicht basieren, zeigten die untersuchten Proben eine bessere Korrosionsbeständigkeit. Anhand von rasterelektronenmikroskopischen Untersuchungen konnte nachgewiesen werden, dass der zugrundeliegende Mechanismus auf einer Diffusion des Zinkphosphats durch den polymeren Film in Richtung des Stahlkörpers basiert
Speed comparison among methods for restoring signals with missing high-frequency components using two different low-pass-filter matrix dimensions
No full textAn arithmetic operations (multiplications and divisions) count is presented for three recent algorithms that restore signals with missing high-frequency components. The cases when the discrete Fourier-transform (DFT) low-pass-filter matrices had dimensions (a) N by N and (b) N by L were studied, where N is the whole signal length and L is the length of its known part. We show that when N is large all these algorithms are 2 orders of magnitude slower for case (a) than for case (b). We also suggest a method for calculating the rank of the DFT low-pass-filter matrix for case (b) that gives more-accurate results than those previously published.Peer reviewed: YesNRC publication: Ye
Characterization of the thorax via mechanical impedance
No full textNational Highway Traffic Safety Administration, Washington, D.C.http://deepblue.lib.umich.edu/bitstream/2027.42/61/2/84526.0001.001.pd
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