<?xml version="1.0" encoding="UTF-8" ?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-10-01T20:50:29Z</responseDate><request metadataPrefix="oai_dc" verb="GetRecord" identifier="oai:10442/0226">https://phdtheses.ekt.gr/eadd_oai/request</request><GetRecord><record><header><identifier>oai:10442/0226</identifier><datestamp>2024-07-07T03:25:27Z</datestamp><setSpec>hdl_10442_2</setSpec></header><metadata><oai_dc:dc xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><dc:description xmlns:lang="en">CHAP. 1ST: HADAMARD MATRICES OF ORDER N WITH MAXIMUM EXCESS, Σ(N), ARE  CONSTRUCTED FOR N=40, 44, 48, 52, 80, 84. THESE GIVE "ALMOST" D-OPTIMAL  SATURATED DESIGNS WHEN THE NUMBER OF OBSERVATIONS IS = 1 MOD 4.  ALGORITHMS ARE GIVEN WHICH ARE COMPUTER IMPLEMENTED. CHAP. 2ND: A NEW  METHOD IS GIVEN FOR CONSTRUCTING D-OPTIMAL WEIGHING DESIGNS WHEN N=3  MOD 4. A MATRIX OF THE GOETHALS-SEIDEL TYPE IS EMPLOYED AND THE  CIRCULANT BLOCKS CONSIST OF CIRCULAR MATRICES. THE NEW DESIGNS, SO  CONSTRUCTED FOR N &lt; 100 ARE: (Ν, Κ, S)=(23,15,11), (23,16,9), (35,23,11), (35,24,11),  (39,23,17), (39,24,12), (39,24,13), (47,29,14), (47,29,15), (47,30,13), (55,31,23), (55,32,16),  (55,32,17), (59,36,16), (59,39,12), (59,40,11), (59,41,11), (71,39,29), (71,40,20), (71,40,21),  (71,41,20), (71,41,21), (71,42,19), (83,47,24), (83,48,21), (87,47,35), (87,48,24), (87,48,25),  (95,53,26), (95,53,27), (83,56,12), (83,55,12).</dc:description><dc:description xmlns:lang="el">ΚΕΦ. 1: ΚΑΤΑΣΚΕΥΑΖΟΝΤΑΙ ΠΙΝΑΚΕΣ HADAMARD ΜΕ ΜΕΓΙΣΤΗ ΥΠΕΡΟΧΗ, Σ(Ν), ΓΙΑ  Ν=40, 44, 48, 52, 80, 84. ΑΥΤΟ ΟΔΗΓΕΙ ΣΕ ΚΑΤΑΣΚΕΥΗ "ΣΧΕΔΟΝ" D-ΒΕΛΤΙΣΤΩΝ  ΚΟΡΕΣΜΕΝΩΝ ΠΕΙΡΑΜΑΤΙΚΩΝ ΣΧΕΔΙΑΣΜΩΝ ΜΕ ΑΡΙΘΜΟ ΠΑΡΑΤΗΡΗΣΕΩΝ = 1 MOD 4.  ΔΙΝΟΝΤΑΙ ΚΑΙ ΑΛΓΟΡΙΘΜΟΙ ΧΡΗΣΙΜΟΙ ΚΑΙ ΣΤΟΝ Η/Υ. ΚΕΦ. 2: ΔΙΝΕΤΑΙ ΜΙΑ ΝΕΑ  ΜΕΘΟΔΟΣ ΓΙΑ ΚΑΤΑΣΚΕΥΗ D-ΒΕΛΤΙΣΤΩΝ ΠΕΙΡΑΜΑΤΙΚΩΝ ΣΧΕΔΙΑΣΜΩΝ ΟΤΑΝ Ν=3  MOD 4. ΧΡΗΣΙΜΟΠΟΙΕΙΤΑΙ Ο ΠΙΝΑΚΑΣ ΤΥΠΟΥ GOETHALS-SEIDEL ΚΑΙ ΟΙ ΚΥΚΛΙΚΟΙ  ΠΙΝΑΚΕΣ (ΜΠΛΟΚ) ΕΧΟΥΝ ΣΤΟΙΧΕΙΑ ΠΑΛΙ ΚΥΚΛΙΚΟΥΣ ΠΙΝΑΚΕΣ. ΤΑ ΝΕΑ ΠΕΙΡΑΜΑΤΙΚΑ  D-ΒΕΛΤΙΣΤΑ ΣΧΕΔΙΑ ΠΟΥ ΚΑΤΑΣΚΕΥΑΖΟΝΤΑΙ ΕΙΝΑΙ ΤΥΠΟΥ (Ν, Κ, S) ΟΠΟΥ Ν &lt; 100 Ο  ΑΡΙΘΜΟΣ ΤΩΝ ΠΑΡΑΤΗΡΗΣΕΩΝ ΚΑΙ Κ Ο ΑΡΙΘΜΟΣ ΤΩΝ ΠΑΡΑΓΟΝΤΩΝ ΠΟΥ ΠΑΙΡΝΟΥΝ  ΜΕΡΟΣ ΣΤΟ ΠΕΙΡΑΜΑ Κ &lt; Ν.  S ΤΟ ΠΛΗΘΟΣ ΤΩΝ ΔΙΑΓΩΝΙΩΝ ΜΠΛΟΚ: (Ν, Κ, S)=(23,15,11),  (23,16,9), (35,23,11), (35,24,11), (39,23,17), (39,24,12), (39,24,13), (47,29,14), (47,29,15), (47,30,13),  (55,31,23), (55,32,16), (55,32,17), (59,36,16), (59,39,12), (59,40,11), (59,41,11), (71,39,29),  (71,40,20), (71,40,21), (71,41,20), (71,41,21), (71,42,19), (83,47,24), (83,48,21), (87,47,35),  (87,48,24), (87,48,25), (95,53,26), (95,53,27), (83,56,12), (83,55,12).</dc:description><dc:title xmlns:lang="el">ΕΙΔΙΚΕΣ ΚΑΤΑΣΚΕΥΕΣ ΒΕΛΤΙΣΤΩΝ ΠΕΙΡΑΜΑΤΙΚΩΝ ΣΧΕΔΙΑΣΜΩΝ</dc:title><dc:title xmlns:lang="en">SPECIAL CONSTRUCTIONS OF OPTIMAL EXPERIMENTAL DESIGNS</dc:title><dc:creator xmlns:lang="en">Farmakis, Nikolaos</dc:creator><dc:creator xmlns:lang="el">Φαρμάκης, Νικόλαος</dc:creator><dc:date>1986</dc:date><dc:language>gre</dc:language><dc:subject xmlns:lang="el">Απόκριση</dc:subject><dc:subject xmlns:lang="el">ΒΑΡΟΣ ΠΙΝΑΚΑ</dc:subject><dc:subject xmlns:lang="el">ΒΕΛΤΙΣΤΟΣ</dc:subject><dc:subject xmlns:lang="el">ΚΥΚΛΙΚΟΣ ΠΙΝΑΚΑΣ</dc:subject><dc:subject xmlns:lang="el">ΠΑΡΑΓΟΝΤΑΣ</dc:subject><dc:subject xmlns:lang="el">ΠΑΡΑΓΟΝΤΙΚΟΣ</dc:subject><dc:subject xmlns:lang="el">Παράμετρος</dc:subject><dc:subject xmlns:lang="el">Πειραματικοί σχεδιασμοί</dc:subject><dc:subject xmlns:lang="el">Πίνακας Hadamard</dc:subject><dc:subject xmlns:lang="el">ΣΤΑΘΜΕΣ</dc:subject><dc:subject xmlns:lang="el">Στατιστική</dc:subject><dc:subject xmlns:lang="el">ΥΠΕΡΟΧΗ ΠΙΝΑΚΑ</dc:subject><dc:subject xmlns:lang="en">CIRCULAR MATRIX</dc:subject><dc:subject xmlns:lang="en">EXCESS OF A MATRIX</dc:subject><dc:subject xmlns:lang="en">Experimental designs</dc:subject><dc:subject xmlns:lang="en">FACTOR</dc:subject><dc:subject xmlns:lang="en">LEVELS</dc:subject><dc:subject xmlns:lang="en">OPTIMAL</dc:subject><dc:subject xmlns:lang="en">Response</dc:subject><dc:subject xmlns:lang="en">WEIGHT OF A MATRIX</dc:subject><dc:publisher xmlns:lang="en">Aristotle University Of Thessaloniki (AUTH)</dc:publisher><dc:publisher xmlns:lang="el">Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ)</dc:publisher><dc:subject xmlns:lang="el">Φυσικές Επιστήμες</dc:subject><dc:subject xmlns:lang="el">Μαθηματικά</dc:subject><dc:subject xmlns:lang="en">Natural Sciences</dc:subject><dc:subject xmlns:lang="en">Mathematics</dc:subject><dc:fathernamelatin>Georgios</dc:fathernamelatin><dc:identifier>10.12681/eadd/0226</dc:identifier><dc:identifier>http://hdl.handle.net/10442/hedi/0226</dc:identifier><dc:type>PhD Thesis</dc:type></oai_dc:dc></metadata></record></GetRecord></OAI-PMH>