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Showing 1 to 20 of 23 for “"Περιβαλλοντική Μηχανική"”.
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ΔΙΗΘΗΣΗ-ΚΡΟΚΚΙΔΩΣΗ ΜΕΣΩ ΒΑΘΕΟΣ ΚΟΚΚΩΔΟΥΣ ΣΤΡΩΜΑΤΟΣ ΠΥΚΝΩΝ ΑΙΩΡΗΜΑΤΩΝ ΜΕΤΑΛΛΕΥΤΙΚΗΣ-ΜΕΤΑΛΛΟΥΡΓΙΚΗΣ ΠΡΟΕΛΕΥΣΗΣ
THE SUBJECT OF THE THESIS IS THE BEHAVIOUR OF A DEED BED GRANULAR FILTER WHEN USED AS A FLOCCULATOR-CLARIFIER ESPECIALLY THE INFLUENCE OF FLOCCULATION INTO THE PORES OF GRANULAR MEDIA IN DEEP BED FILTRATION DURING THE FILTRATION OF RED MUDE SUSPENSIONS . IT WAS FOUND THAT FLOCCULATION CONTROLS THE …
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ΣΥΜΒΟΛΗ ΣΤΗ ΒΕΛΤΙΣΤΟΠΟΙΗΣΗ ΤΗΣ ΕΚΧΥΛΙΣΗΣ ΤΟΥ ΔΙΑΣΠΟΡΙΚΟΥ ΒΩΞΙΤΗ
THE ALUMINIUM IN BAUXITES OCCURS IN THREE DISTINCT MINERALS: GIBBSITE, BOEMITE, AND DIASPORE. THE LEACHING CONDITIONS DEPEND ON THE MINERALOGY OF THE BAUXITES. THE DIASPORIC BAUXITES NEED STRONGER LEACHING CONDITIONS THAN THE OTHER TYPES OF BAUXITES. THE AIM OF THIS WORK WAS TO STUDY THE MAIN …
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ΚΙΝΗΤΙΚΗ ΤΗΣ ΕΞΑΓΩΓΗΣ ΤΟΥ ΝΙΚΕΛΙΟΥ ΑΠΟ ΑΙΜΑΤΙΤΙΚΟ ΛΑΤΕΡΙΤΗ ΚΑΤΑ ΤΗΝ ΕΚΧΥΛΙΣΗ ΤΟΥ ΜΕ ΘΕΙΙΚΟ ΟΞΥ ΣΕ ΑΤΜΟΣΦΑΙΡΙΚΗ ΠΙΕΣΗ
IN THIS THESIS THE KINETICS OF NICKEL EXTRACTION FROM AN HEMATITIC-TYPE LATERITE DURING LEACHING WITH SULFURIC ACID IS STUDIED. AFTER THE LOCALISATION OF THE NICERAL PHASE WITH WHICH NICKEL IS CONNECTED, THE INFLUENCE OF THE MACROSCOPIC VARIABLES AFFECTING THE SYSTEM (CONCENTRATION, TEMPERATURE, …
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ΜΕΛΕΤΗ ΤΩΝ ΜΟΛΑΣΣΙΚΩΝ ΙΖΗΜΑΤΩΝ ΤΟΥ ΣΧΗΜΑΤΙΣΜΟΥ ΤΣΟΤΥΛΙΟΥ ΤΗΣ ΜΕΣΟΕΛΛΗΝΙΚΗΣ ΑΥΛΑΚΑΣ (ΜΙΚΡΟΠΑΛΑΙΟΝΤΟΛΟΓΙΑ-ΣΤΡΩΜΑΤΟΓΡΑΦΙΑ)
THIS STUDY IS A MICROPALEONTOLOGICAL AND BIOSTRATIGRAPHIC INVESTIGATION FOSSILIFEROUS MOLASSIC DEPOSITS FROM THE MESOHELLENIC TROUGH IN THE GREVENA AREA OF NORTH-WEST MACEDONIA. IT PRESENTS A) A DETAILED DEFINITION OF THE PLANKTONIC FORAMINIFERA AND OTHER MICROFOSSILS FOUND WITHIN THE MOLASSIC …
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ΣΤΟΧΑΣΤΙΚΗ ΕΠΕΞΕΡΓΑΣΙΑ ΠΟΛΥΔΙΑΣΤΑΤΩΝ ΓΕΩΛΟΓΙΚΩΝ ΣΗΜΑΤΩΝ
THIS WORK DEALS WITH THE MODELLING AND ESTIMATION OF MULTIDIMENTIONAL PHYSICAL PARAMETERS THAT OCCUR IN SEVERAL GEOLOGICAL AND MIXING APPLICATIONS, SUCH AS ESTIMATION OF THE ORE CONTENT IN A METALLIFEROUS AREA, THE CALCULATION OF THE SETTLEMENTS OF A MINE AND THE MAPPING OF THE WATER LEVEL OF AN …
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ΕΚΧΥΛΙΣΗ ΛΑΤΕΡΙΤΩΝ ΜΕ ΘΕΙΙΚΟ ΟΞΥ ΥΠΟ ΠΙΕΣΗ
THE EXTRACTION OF NICKEL AND COBALT FROM LOW GRADE GREEK LATERITE ORIS IS ACCELARATED AT CONDITIONS OF HIGH TEMPERATURE- PRESSURE. THE EXTRACTION VALUES REACH100% UNDER CONDITIONS OF 220-260 C TEMPERATURE, 40-60 BAR PRESSURE 2 H DURATION. NUTRALIZATION OF THE EFFLVENTS IS VERY SATISFACTORY. THE …
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ΟΦΙΟΛΙΘΟΙ ΤΗΣ ΝΗΣΟΥ ΚΡΗΤΗΣ
ΟΙ ΟΦΙΟΛΙΘΟΙ ΤΗΣ ΝΗΣΟΥ ΚΡΗΤΗΣ ΑΠΑΝΤΟΥΝ ΩΣ ΤΕΜΑΧΗ ΕΝΟΣ ΔΙΑΜΕΛΙΣΜΟΥ ΟΦΙΟΛΙΘΙΚΟΥ ΣΥΜΠΛΕΓΜΑΤΟΣ, ΣΤΙΣ ΠΕΡΙΟΧΕΣ ΑΝΩΓΕΙΑ, ΣΠΗΛΙ, ΜΙΑΜΟΥ, ΚΑΜΑΡΕΣ, ΒΙΑΝΝΟ. ΚΑΤΑΛΑΜΒΑΝΟΥΝ ΕΚΤΑΣΗ 35 ΚΜ2 ΠΕΡΙΠΟΥ ΚΑΙ ΕΧΟΥΝ ΠΑΧΟΣ 300 Μ ΠΕΡΙΠΟΥ, ΕΙΝΑΙ ΔΕ ΑΝΩΙΟΥΡΑΣΙΚΗΣ ΗΛΙΚΙΑΣ. ΣΤΟ ΟΦΙΟΛΙΘΙΚΟ ΣΥΜΠΛΕΓΜΑ ΑΠΑΝΤΟΥΝ: 1) ΧΑΡΖΒΟΥΡΓΙΤΕΣ …
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ΤΕΚΤΟΝΙΚΕΣ ΚΙΝΗΣΕΙΣ ΚΑΤΑ ΤΟ ΤΕΤΑΡΤΟΓΕΝΕΣ ΣΤΙΣ ΑΚΤΕΣ ΤΗΣ ΑΝΑΤΟΛΙΚΗΣ ΚΡΗΤΗΣ
THE SYSTEMATIC STUDY OF QUATERNARY MARINE PLATFORMS, PLEISTOCENE TERRACES, FAULTS, BEACH-ROCKS, HOLOCENE SHORELINES AND NEARSHORE ARCHAEOLOGICAL REMAINS AND FOUNDINGS ALLOWED US TO DETERMINE THE DIRECTION AND MAGNITUDE OF THE VERTICAL TECTONIC MOVEMENTS AND TECTONIC DEFORMATIONS THAT THE COASTS OF …
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ΤΕΧΝΙΚΟΓΕΩΛΟΓΙΚΗ ΕΡΕΥΝΑ ΕΥΡΥΤΕΡΗΣ ΠΕΡΙΟΧΗΣ ΑΤΑΛΑΝΤΗΣ
THE THESIS DEALS WITH A SERIES OF SUBJECTS OF THE GEOSCIENCES CONNECTED TO THE GEOLOGICAL STRUCTURE, THE SEISMOTECTONIC (WITH SOME ELEMENTS OF THE SEISMIC HAZARD), THE HYDROGEOLOGICAL CONDITIONS, THE CONSEQUENCES OF SOME ACTIVITIES ON THE ENVIRONMENT (PARTICULARLY ON THE POLLUTION OF UNDERGROUND …
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Ο ΠΛΟΥΤΩΝΙΤΗΣ ΤΗΣ ΜΑΡΩΝΕΙΑΣ ΚΑΙ Η ΜΕΤΑΜΟΡΦΙΚΗ ΤΟΥ ΕΠΙΔΡΑΣΗ ΣΤΑ ΠΕΡΙΒΑΛΛΟΝΤΑ ΠΕΤΡΩΜΑΤΑ ΤΗΣ ΦΥΛΛΙΤΙΚΗΣ ΣΕΙΡΑΣ
THE MARONIA PLUTON HAS A COMPOSITION RANGING FROM MONZODIORITE TO MONZO-GABBRO.THE MONZO-GABBRO COMPOSITION IS DOMINANT. THE PLUTON BELONGS TO THE CALC-ALCALINE ROCK SERIES AND FROM A PETROGENETIC ASPECT IT IS CHARACTERIZED AS AN IGNEOUS ROCK BELONGING TO THE I-TYPE OR MAGNETITE SERIES (M ORIGIN). …
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ΒΕΛΤΙΣΤΟΠΟΙΗΣΗ ΤΗΣ ΕΚΧΥΛΙΣΗΣ ΛΑΤΕΡΙΤΩΝ ΜΕ ΘΕΙΙΚΟ ΟΞΥ
THE ATMOSPHERIC PRESSURE LEACHING OF NICKELIFEROUS LATERITES BY SULFURIC ACID IS AN ALTERNATIVE METHOD TO THE HIGH PRESSURE LEACHING. TWO TYPES OF ORES WERE STUDIED (SERPENTINIC, HEMATITIC) AND THE INFLUENCE OF VARIOUS PARAMETERS LIKE LEACHING TEMPERATURE, ACID CONSUMPTION, PULP DENSITY, PREHEATING …
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ΠΑΡΑΜΕΤΡΟΙ ΠΟΥ ΕΠΗΡΕΑΖΟΥΝ ΤΗΝ ΕΞΟΡΥΞΙΜΟΤΗΤΑ ΤΩΝ ΠΕΤΡΩΜΑΤΩΝ ΜΕ ΚΑΔΟΦΟΡΟ ΕΚΣΚΑΦΕΑ
IN THIS DISSERTATION THE PARAMETERS AFFECTING BWE DIGGABILITY ARE INVESTIGATED AND A DIGGABILITY CRITERION IS INTRODUCED WHICH INCORPORATES TWO PARAMETERS, THE EFFECTIVE OUTPUT OF THE BUCKET WHEEL EXCAVATOR AND THE SPECIFIC DIGGING ENERGY OF THE ROCK MASS. THE PROPOSED CRITERION IS FORMULATED BY …
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ΣΥΜΒΟΛΗ ΣΤΟΝ ΕΜΠΛΟΥΤΙΣΜΟ ΤΟΥ ΜΗ ΕΞΑΛΛΟΙΩΜΕΝΟΥ ΦΩΣΦΟΡΙΤΗ ΗΠΕΙΡΟΥ
THE POSSIBILITY OF BENEFICIATION OF THE UNALTERED LOW-GRADE PHOSPHATE ROCK OF EPIROUS (GREECE) WAS INVESTIGATED FOR ECONOMIC EXPLOITATION OF THE ROCK. THE MINERALOGICAL EXAMINATION OF THE ROCK AND THE PRELIMINARY TESTS FOR ITS BENEFICIATION (SIEVE ANALYSIS, HEAVY LIQUID TESTS) WERE PERFORMED. BASED …
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ΔΟΜΙΚΟΙ ΜΕΤΑΣΧΗΜΑΤΙΣΜΟΙ ΚΑΤΑ ΤΗΝ ΑΝΟΠΤΗΣΗ ΑΝΟΞΕΙΔΩΤΩΝ ΦΕΡΡΙΤΙΚΩΝ ΧΑΛΥΒΩΝ ΚΑΙ Η ΕΠΙΔΡΑΣΗ ΤΟΥΣ ΣΤΗ ΣΥΜΠΕΡΙΦΟΡΑ ΚΑΤΑ ΤΗ ΘΡΑΥΣΗ ΚΑΙ ΚΑΤΑ ΤΗΝ ΟΞΕΙΔΩΣΗ ΥΨΗΛΗΣ ΘΕΡΜΟΚΡΑΣΙΑΣ
THE STRUCTURAL TRANSFORMATIONS OF CAST FERRITIC STAINLESS STEELS WITH 28-30% CR, 0.3-0.35% C AND ZR, TI, NB, NI ADDITIONS DURING LONG PERIOD ANNEALING AT 660 C, WERE STUDIED, BY MEANS OF OPTICAL AND ELECTRON MICROSCOPY, X-RAY DIFFRACTIONAND FLUORESCENCE, IMAGE ANALYSIS AND MOSSBAUER SPECTROSCOPY. …
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ΜΕΛΕΤΗ ΤΟΥ ΦΑΙΝΟΜΕΝΟΥ ΤΗΣ ΔΙΑΒΡΟΧΗΣ ΣΕ ΑΝΤΙΔΡΩΝΤΑ ΣΥΣΤΗΜΑΤΑ ΤΟΥ ΤΥΠΟΥ: ΚΡΑΜΑΤΑ ΣΥΓΚΟΛΛΗΣΗΣ-ΚΕΡΑΜΙΚΑ ΥΛΙΚΑ
Η ΠΑΡΟΥΣΑ ΔΙΑΤΡΙΒΗ ΕΧΕΙ ΩΣ ΑΝΤΙΚΕΙΜΕΝΟ ΤΗ ΜΕΛΕΤΗ ΤΟΥ ΦΑΙΝΟΜΕΝΟΥ ΤΗΣ ΔΙΑΒΡΟΧΗΣ ΣΕ ΣΥΣΤΗΜΑΤΑ ΜΕΤΑΛΛΟΥ/ΚΕΡΑΜΙΚΟΥ. ΜΕΛΕΤΗΘΗΚΕ Η ΕΠΙΔΡΑΣΗ ΤΗΣ ΠΡΟΣΘΗΚΗΣ CR ΚΑΙ TI ΣΕ ΜΕΤΑΛΛΙΚΕΣ ΜΗΤΡΕΣ CU ΚΑΙ NIPD ΠΑΝΩ ΣΤΙΣ ΔΙΕΠΙΦΑΝΕΙΑΚΕΣ ΙΔΙΟΤΗΤΕΣ ΤΩΝ ΚΡΑΜΑΤΩΝΑΥΤΩΝ ΜΕ ΚΕΡΑΜΙΚΑ ΥΛΙΚΑ (ΑΛΟΥΜΙΝΙΑ ΚΑΙ ΑΜΟΡΦΟ ΑΝΘΡΑΚΑ). Η …
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ΒΕΛΤΙΣΤΟΠΟΙΗΣΗ ΜΟΡΦΗΣ ΓΑΣΤΡΑΣ ΠΛΟΙΟΥ ΩΣ ΠΡΟΣ ΤΗ ΣΥΜΠΕΡΙΦΟΡΑ ΣΕ ΚΥΜΑΤΙΣΜΟΥΣ
IN THIS THESIS A NEW METHOD FOR ANALYTICAL SEAKEEPING OPTIMIZATION IS DESCRIBED. THE METHOD IS BASED ON A COMPUTER CODE WHICH PREDICTS SEAKEEPING PERFORMANCE WHEN THE SHIP PROFILE, THE DESIGN WATERLINE, THE SECTIONAL AREA CURVE AND THE DISTRIBUTION ALONG THE SHIP OF THE CENTROID, KB(X) OF THE CROSS …
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ΣΧΕΣΗ ΜΕΤΑΞΥ ΤΗΣ ΕΙΔΙΚΗΣ ΕΝΕΡΓΕΙΑΣ ΛΕΙΟΤΡΙΒΗΣΗΣ ΨΑΘΥΡΩΝ ΥΛΙΚΩΝ ΜΕ ΤΟ ΧΡΟΝΟ ΛΕΙΟΤΡΙΒΗΣΗΣ, ΤΟ ΜΕΓΕΘΟΣ ΤΟΥ ΠΡΟΙΟΝΤΟΣ ΚΑΙ ΤΑ ΜΗΧΑΝΙΚΑ ΧΑΡΑΚΤΗ...
THE OBJECTIVE OF THIS RESEARCH IS TO STUDY THE RELATION BETWEEN THE SPECIFIC GRINDING ENERGY OF BRITTLE MATERIALS AND THE GRINDING TIME, THE SIZE OF THE PRODUCT AND THE MECHANICAL PROPERTIES OF THE MATERIAL. IN THIS INVESTIGATED WORK IS PRESENTED A GREAT NUMBER OF TEST RESULTS SUCH AS GRINDING, …
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ΕΞΕΥΓΕΝΙΣΜΟΣ ΤΩΝ ΚΑΟΛΙΝΩΝ ΤΗΣ ΝΗΣΟΥ ΜΗΛΟΥ
THE PURPOSE OF THE WORK WAS THE BENEFICIATION OF MILOS LOW GRADE KAOLIN. THE MAIN OBJECT WAS TO INVESTIGATE THE POSSIBILITIES OF THE LOW GRADE KAOLIN'S BENEFICIATION BY SELECTIVE FLOCCULATION. THERE WERE USED FOR THESE PURPOSE: A) TWO KAOLIN SAMPLES. B) THE POLYMER FLOCCULATION: SEPARAN-NP10 (AMPHO …
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"ΒΙΟΜΗΧΑΝΙΚΗ ΑΞΙΑ" ΚΑΤΗΓΟΡΙΩΝ ΑΠΟΘΕΜΑΤΩΝ ΩΣ ΠΑΡΑΓΟΝΤΑΣ ΓΙΑ ΤΗ ΛΗΨΗ ΕΠΕΝΔΥΤΙΚΩΝ ΑΠΟΦΑΣΕΩΝ
THE METHODOLOGY PRESENTED IN THE PH.D. THESIS PROVIDES THE MEANS OF DEFINING THE EFFECT OF THE RESERVE ESTIMATION ERROR ON THE DESIRABILITY OF MINING A DEPOSIT. IT IS KNOWN THAT MINERAL RESERVES CAN BE CLASSIFIED ACCORDING TO THE DEGREE OF GEOLOGICAL ASSURANCE, WHICH IS BEST EXPRESSED BY THE …
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