Toggle navigation
Search
Browse
Item types
Scientific fields
Schools/departments/institutes
Institutions
Collections
Interoperability
Info
The project
Help
For institutions
Contribute
Publication Requirements
Expression of Interest Form
Contact
ΕΛ
•
ΕΝ
AND
OR
NOT
×
Enter word or phrase
In all fields
Title
Creator/contributor
×
+
AND
OR
Item type
AND
OR
Scientific field
AND
OR
School/Department/Institute
AND
OR
Year
Institution / collection
ΕΚΤ e
Content
Services
repositories
EKT
ΕΚΤ
NA.Ph.D.
ΕΚΤ e
Publishing
ΕΚΤ e
Journals
ΕΚΤ e
Proceedings
+
More search options
Less search options
Search
Clear
Help
Filters
Filters
Clear
Item type
Thesis
(84)
Bachelor thesis
(71)
Master thesis
(5)
PhD thesis
(8)
Scientific field
Engineering and Technology
(84)
Mechanical Engineering
(84)
Nuclear Energy and Engineering
(84)
Natural Sciences
(1)
Mathematics
(1)
Applied Mathematics
(1)
School/Department/Institute
National Technical Univeristy of Athens
(84)
National Technical Univeristy of Athens
School of Applied Mathematical and Physics Science
(1)
National Technical Univeristy of Athens
School of Mechanical Engineering
(84)
National Technical Univeristy of Athens ▶ School of Mechanical Engineering
Section of Nuclear Engineering
(84)
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Laboratory of Νuclear Εngineering
(24)
Year
2020 - 2024
(26)
2015 - 2019
(17)
2010 - 2014
(21)
2005 - 2009
(18)
2000 - 2004
(1)
1990 - 1994
(1)
Language
English
(3)
Greek
(45)
Institution / collection
National Technical University of Athens
(84)
Digital Library of National Technical University of Athens | Dspace@NTUA
(84)
1 - 30 to 84 items
Sort by
Relevance
Ascending date
Descending date
Ανάπτυξη μεθοδολογίας προσδιορισμού του ρυθμού δόσης εξαιτίας του 137Cs στο έδαφος, με τη μέθοδο της προσομοίωσης Monte-Carlo Development of a methodology of the calculation of the dose-rate due to 137Cs in the ground, using Monte-Carlo simulation
Creator:
Maroudi, Ekaterini-Elikonida D., Μαρούδη, Αικατερίνη-Ελικωνίδα Δ.
Item type:
Bachelor thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2009
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Προσομοίωση βιομηχανικής ραδιογραφίας με τον κώδικα XRSIM Simulation of industrial radiography using the XRSIM code
Creator:
Theodoropoulos, Georgios - Vlasios D., Θεοδωρόπουλος, Γεώργιος - Βλάσιος Δ.
Item type:
Bachelor thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2009
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Ανάπτυξη Μεθοδολογίας Προσδιορισμού της Δοσιμετρικής Κατανομής Γύρω από Πηγή Βραχυθεραπείας,με Χρ΄σηση Τεχνικών Προσομοίωσης Monte-Carlo Development of Method for the Quantification of Dosimetric Distribution Around a Brachytherapy Source, Using Monte-Carlo Simulation Techniques
Creator:
Doulgkeroglou, Meletios-Nikolaos .D, Δουλγκέρογλου, Μελέτιος-Νικόλαος Δ.
Item type:
Bachelor thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2009
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Βαθμονόμηση ανιχνευτικής διάταξης γερμανίου για τον προσδιορισμό του ισοτόπου Be-7 στα ατμοσφαιρικά αερολύματα με χρήση τεχνικών προσομοίωσης Monte Carlo Efficiency calibration of a semiconductor detector for the quantification of the radioactive isotope Be-7 concentration in the atmospheric aerosol using Monte Carlo simulation Techniques
Creator:
Savva, Marilia I., Σάββα, Μαρίλια Ι.
Item type:
Bachelor thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2009
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Εγκατάσταση και παραμετρική μελέτη εξοπλισμού λειοτρίβισης περιβαλλοντικών δειγμάτων και εφαρμογή στη ραδιοπεριβαλλοντική ανάλυση Installation and parametric incestigation of encironmental sample grinding equipment and application to radioenvironmental analysis
Creator:
Πρέντζα, Λουκία Κ., Prentza, Loukia Κ.
Item type:
Bachelor thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2009
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Προδιορισμός συντελεστών διόρθωσης απόδοσης ανιχνευτή HPGe λόγω του φαινομένου της πραγματικής σύμπτωσης, μέσω προσομοίωσης Monte-Carlo Determination of true coincidence correction factors for HPGe detectors using Monte-Carlo simulation techniques
Creator:
Βασιλοπούλου, Θεοδώρα Δ., Vasilopoulou, Theodora D.
Item type:
Master thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2008
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Εγκατάσταση και παραμετρική μελέτη διάταξης ανάλυσης κοκκομετρίας - εφαρμογή στην κοκκομετρική ανάλυση και τον προσδιορισμό των ραδιολογικών χαρακτηριστικών των διαφόρων κλασμάτων ιπτάμενης τέφρας Installation and parametric study of a particle size analyzer - application to the particle size analysis and determination of the radiological characteristics of fly ash size fractions
Creator:
Peppas, Thomas K., Πέππας, Θωμάς Κ.
Item type:
Bachelor thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2008
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Βαθμονόμηση δοχείων με προσροφητικά υλικά για τη μέτρηση συγκεντρώσεων ραδονίου στην ατμόσφαιρα σε διάφορα επίπεδα σχετικής υγρασίας Diffusive samplers calibration for ambient radon concentration measurements at various humidity levels
Creator:
Πασχαλίδης, Ιωάννης Σ., Paschalidis, Ioannis S.
Item type:
Bachelor thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2008
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Γεωστατιστική απεικόνιση συγκέντρωσης ραδονίου στο εσωτερικό κατοικιών στην περιοχή της Πελοποννήσου Geostatistical mapping of in-house Radon concentration in Peloponnesus Area
Creator:
Μοίρας, Χαράλαμπος Θ., Moiras, Charalampos T.
Item type:
Bachelor thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2008
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Μετατροπή λογισμικού Λ/Σ UNIX system V σε λογισμικό Λ/Σ LINUX για τη σύνδεση σειριακών συσκευών μέσω θύρας RS-232 Conversion of UNIX system V software to LINUX software for serial devices connection to RS-232 computer ports
Creator:
Alexopoulos, Georgios D., Αλεξόπουλος, Γεώργιος Δ.
Item type:
Bachelor thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2008
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Ανάλυση φασμάτων φθορισμού ακτίνων-Χ (XRF) περιβαλλοντικών δειγμάτων με το πρόγραμμα WinQXAS Analysis of environmental samples X-Ray fluorescence spectra using the computer code WinQXAS
Creator:
Βαρδαβά, Αικατερίνη Ε., Vardava, Αikaterini E.
Item type:
Bachelor thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2008
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Συγκρότηση θερμοϋδραυλικού κυκλώματος νερού-ατμού. Φάση-ΙΙ: Εγκατάσταση δοχείου συγκέντρωσης και κλειστού κυκλώματος κυκλοφορίας νερού. Σύνδεση των αναγκαίων μεταλλακτών απευθείας συνδεδεμένων σε Η/Υ. Installation of water-steam thermal-hydraulic RIG. Phase II: Holding tank and closed water-cirquit installation. Mounting of relevant transducers on-line connected to personal computer.
Creator:
Sipsas, Antonios P., Σίψας, Αντώνιος Π.
Item type:
Bachelor thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2008
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Συγκρότηση θερμουδραυλικού κυκλώματος νερού-ατμού. Φάση-Ι. Εγκατάσταση δοχείου βρασμού και σχετικών διατάξεων μεταλλακτών απευθείας συνδεδεμένων σε Η/Υ Installation of water-steam thermal hydraulic RIG Fase-I. Heating Tank installation and mounding of relevant transducers on-line connected to P/C.
Creator:
Foteinopoulos, Konstantinos P., Φωτεινόπουλος, Κωνσταντίνος, Π.
Item type:
Bachelor thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2008
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Εμφάνιση και ψηφιοποίηση φιλμ στην εγκατάσταση βιομηχανικής ραδιογραφίαςτου τομέα πυρηνικής τεχνολογίας με πρακτικές εφαρμογές Film development and film digitization at the industrial radiography instalation of the nuclear engineering department with practical applications
Creator:
Exarchos, Grigorios G., Έξαρχος, Γρηγόριος Γ.
Item type:
Bachelor thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2010
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
ΑΝΑΠΤΥΞΗ ΚΑΙ ΕΦΑΡΜΟΓΗ ΤΕΧΝΙΚΩΝ ΠΡΟΣΔΙΟΡΙΣΜΟΥ ΠΟΛΥ ΧΑΜΗΛΩΝ ΣΥΓΚΕΝΤΡΩΣΕΩΝ ΡΑΔΙΕΝΕΡΓΩΝ ΙΧΝΟΣΤΟΙΧΕΙΩΝ ΣΕ ΔΕΙΓΜΑΤΑ ΠΕΡΙΒΑΛΛΟΝΤΙΚΗΣ ΣΗΜΑΣΙΑΣ
Creator:
Σάββα, Μαρίλια
Item type:
PhD thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2017
Language:
Greek
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Μελέτη της συγκέντρωσης φυσικών και τεχνητών ραδιενεργών ισοτόπων στα διάφορα κοκκομετρικά κλάσματα του επιφανειακού χώματος
Creator:
Mitsios, Iason, Μήτσιος, Ιάσων
Item type:
Bachelor thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2016
Language:
Greek
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Σχεδίαση ενός στόχου χαμηλής ισχύος για την απευθείας παραγωγή σε κυκλοτρό 99mTc Design of a low power target for direct cyclotron production of 99mTc
Creator:
Λιβανού, Αναστασία, Livanou, Anastasia
Item type:
Bachelor thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2015
Language:
gre, eng
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Ο ΚΩΔΙΚΑΣ ΥΠΟΛΟΓΙΣΤΙΚΗΣ ΤΟΜΟΓΡΑΦΙΑΣ SNARK09: ΕΓΚΑΤΑΣΤΑΣΗ ΣΕ ΛΕΙΤΟΥΡΓΙΚΟ ΣΥΣΤΗΜΑ LINUX, ΣΥΝΟΠΤΙΚΗ ΠΑΡΟΥΣΙΑΣΗ ΚΑΙ ΑΡΧΙΚΗ ΑΞΙΟΛΟΓΗΣΗ ΓΙΑ ΜΗ ΚΑΤΑΣΤΡΕΠΤΙΚΟ ΕΛΕΓΧΟ ΥΛΙΚΩΝ
Creator:
LEVENTIS, SOKRATIS, ΛΕΒΕΝΤΗΣ, ΣΩΚΡΑΤΗΣ
Item type:
Master thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2016
Language:
Greek
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Σύγκριση μεθόδων παρασκευής περιβαλλοντικών δειγμάτων για ανάλυση με φθορισμό ακτινών-x (XRF)
Creator:
Παναγιωτόπουλος, Αλέξανδρος, Panagiotopoulos, Alexandros
Item type:
Bachelor thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2017
Language:
Greek
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Ανάπτυξη προγραμμάτων MATLAB για τον έλεγχο και την ανάγνωση καταμετρητή – χρονομέτρου NIM τύπου CANBERRA 512 μέσω θύρας H/Y RS-232 Development of MATLAB programs to control and read a NIM counter – timer of type CANBERRA 512 using the RS-232 computer report
Creator:
Βασδεκάς, Ιωάννης-Αγαμέμνων, Vasdekas, Ioannis-Agamemnon
Item type:
Bachelor thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2016
Language:
Greek
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Εκτίμηση του εύρους των πιθανών επιπτώσεων στην ευρύτερη περιοχή της Μεσογείου, λόγω υποθετικού μείζονος πυρηνικού ατυχήματος Assessment of the range of potential impacts in the wider Mediterranean region due to a hypothetical severe nuclear accident
Creator:
Kalpaxis, Georgios, Καλπαξής, Γεώργιος
Item type:
Bachelor thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2023
Language:
gre, eng
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Μελέτη κεφαλής ιατρικού γραμμικού επιταχυντή για ακτινοβόληση με δέσμη ηλεκτρονίων με χρήση τεχνικών προσομοίωσης MONTE CARO
Creator:
Τσέλιος, Κωνσταντίνος, Tselios, Konstantinos
Item type:
Bachelor thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2021
Language:
Greek
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Αριθμητική επίλυση συμπύκνωσης με χρήση σχήματος ανώτερης τάξης TVD για την προσομοίωση ροών αερολύματος με έντονη αλλαγή φάσης Numerical solution of condensation using a high-order TVD scheme to simulate aerosol flows with intense phase change
Creator:
Mengoulis, Alexandros Athanasios, Μέγγουλης, Αλέξανδρος Αθανάσιος
Item type:
Bachelor thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2022
Language:
Greek
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Ανάλυση στερεών περιβαλλοντικών δειγμάτων με Νετρονική Ενεργοποίηση και γ-Φασματοσκοπία
Creator:
Krousaniotakis, Dimitrios, Κρουσανιωτάκης, Δημήτριος
Item type:
Bachelor thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2022
Language:
Greek
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Μελέτη της διάβρωσης και ιζηματογένεσης του εδάφους με χρήση ραδιενεργών ιχνηθετών και του κώδικα MODERN Study of erosion and sedimentation of soil using radioactive tracers and the MODERN code
Creator:
Μιχαηλίδης, Δημήτριος, Michailidis, Dimitrios
Item type:
Bachelor thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2022
Language:
Greek
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Προσομοίωση ροών αερολύματος με ισχυρή σύζευξη πυρηνοποίησης-συμπύκνωσης στο πλαίσιο μοντέλων υπολογιστικής ρευστομηχανικής
Creator:
Ευθυμίου, Χάρης, Efthymiou, Charis
Item type:
Bachelor thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2022
Language:
Greek
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Ραδιολογικές επιπτώσεις λόγω της διάθεσης αντιπροσωπευτικού αποθέματος ραδιενεργών αποβλήτων σε μικρό ή μεσαίο βάθος
Creator:
Καλαμαράς, Βασίλειος, Kalamaras, Vasileios
Item type:
Bachelor thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2022
Language:
Greek
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Διερεύνηση της διακύμανσης της ενεργότητας και κατανομής μεγέθους ραδιενεργών ιχνηθετών στο ατμοσφαιρικό αερόλυμα
Creator:
Δαλάκα, Αικατερίνη, Dalaka, Aikaterini
Item type:
PhD thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2023
Language:
Greek
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Ανάπτυξη μεθοδολογίας για την ανίχνευση ραδιενεργών ισοτόπων σε δείγματα ξηρής ατμοσφαιρικής απόθεσης
Creator:
Karydis, Evangelos, Καρύδης, Ευάγγελος
Item type:
Bachelor thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2021
Language:
Greek
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
Ανίχνευση ακουστικών σημάτων νετρίνων αστροφυσικής προέλευσης με υποβρύχιους ανιχνευτές Identification of acoustic neutrino signals of astrophysical origin in underwater detectors
Creator:
Paschos, Konstantinos, Πάσχος, Κωνσταντίνος
Item type:
Bachelor thesis
Scientific field:
Nuclear Energy and Engineering
Υear:
2023
Language:
gre, eng
School/department/institute:
National Technical Univeristy of Athens ▶ School of Mechanical Engineering ▶ Section of Nuclear Engineering
Institution:
National Technical University of Athens
Collection :
Digital Library of National Technical University of Athens | Dspace@NTUA
RDF
×
×
Βοηθείστε μας να κάνουμε καλύτερο το
OpenArchives
.gr
.
Πάρτε μέρος στη σύντομη έρευνα!