Spectrochemical analytical study of some geological rocks adopting laser techniques / (Record no. 79095)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03179cam a2200337 a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | EG-GiCUC |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250223032640.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 201205s2020 ua dh f m 000 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | EG-GiCUC |
| Language of cataloging | eng |
| Transcribing agency | EG-GiCUC |
| 041 0# - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| 049 ## - LOCAL HOLDINGS (OCLC) | |
| Holding library | Deposite |
| 097 ## - Thesis Degree | |
| Thesis Level | Ph.D |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | Cai01.24.05.Ph.D.2020.Ra.S |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Raghda Mohamed Hosny Mohamed Salah Eldin Elsaeid |
| 245 10 - TITLE STATEMENT | |
| Title | Spectrochemical analytical study of some geological rocks adopting laser techniques / |
| Statement of responsibility, etc. | Raghda Mohamed Hosny Mohamed Salah Eldin Elsaeid ; Supervised Mohamed Abdelharith Mohamed , Mahmoud Abdelhamid Ahmed |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | دراسة طيف كيميائية تحليلية لبعض الصخور الجيولوجية باستخدام تقنيات الليزر |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Cairo : |
| Name of publisher, distributor, etc. | Raghda Mohamed Hosny Mohamed Salah Eldin Elsaeid , |
| Date of publication, distribution, etc. | 2020 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 143 P. : |
| Other physical details | charts , facsimiles ; |
| Dimensions | 25cm |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (Ph.D.) - Cairo University - National Institute of Laser Enhanced Science (NILES) - Department of Laser Applicationsin Environmental Metrology, Photochemistry and Agriculture |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | The present work consists of two parts, in the first part results are presented on the application of standard LIBS and Nanoparticle- Enhanced LIBS (NELIBS) to the classification of igneous and sedimentary rocks.The classification of the obtained spectra was performed using Principal Component Analysis (PCA) and Graph Theory method. The results obtained confirmed the advantages of the LIBS technique in geological applications. As a result excellent classification of the analyzed rocks can be obtained using standard LIBS coupled to Graph Theory analysis, while NELIBS spectra, analyzed with the same technique, provide acceptable results, but with 10% of the spectra not classified. These findings are particularly interesting given the application of the LIBS technique in investigating natural samples having porous and/or rough surfaces.The second part of this study introduces a detailed investigation discriminate between igneous and sedimentary rocks. The used LIBS setup was a conventional single-pulse nanosecond system with an Nd: YAG laser at two excitation wavelengths, 1064 nm and 355 nm. The LIBS spectra of the rock samples were recorded in the 200-700 nm spectral range and normalized to the irradiance for all laser wavelengths to compensate for the different laser pulse energies used.The surface hardness values of the studied samples were spectroscopically determined via the intensity ratios of the ionic - to atomic-spectral lines of iron and magnesium in igneous and sedimentary rock samples. Besides, the laser-induced plasma diagnostics, namely the plasma temperature and the electron density, were calculated from the obtained spectral data |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Additional physical form available note | Issued also as CD |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Geological rocks |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Principal Component Analysis (PCA) |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Xray analysis (EDX) |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Mahmoud Abdelhamid Ahmed , |
| Relator term | |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Mohamed Abdelharith Mohamed , |
| Relator term | |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="http://172.23.153.220/th.pdf">http://172.23.153.220/th.pdf</a> |
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) | |
| Cataloger | Nazla |
| Reviser | Revisor |
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) | |
| Cataloger | Shimaa |
| Reviser | Cataloger |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Koha item type | Thesis |
| Source of classification or shelving scheme | Not for loan | Home library | Current library | Date acquired | Full call number | Barcode | Date last seen | Koha item type | Copy number |
|---|---|---|---|---|---|---|---|---|---|
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | قاعة الرسائل الجامعية - الدور الاول | 11.02.2024 | Cai01.24.05.Ph.D.2020.Ra.S | 01010110082254000 | 22.09.2023 | Thesis | ||
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | مخـــزن الرســائل الجـــامعية - البدروم | 11.02.2024 | Cai01.24.05.Ph.D.2020.Ra.S | 01020110082254000 | 22.09.2023 | CD - Rom | 82254.CD |