Photochromic performance and photostability of strontium aluminate as anti-counterfeiting / (Record no. 83936)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02817cam a2200337 a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | EG-GiCUC |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250223032911.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 220111s2021 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 | M.Sc |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | Cai01.24.05.M.Sc.2021.Om.P |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Omnia Mohamed Mokhtar Ahmed |
| 245 10 - TITLE STATEMENT | |
| Title | Photochromic performance and photostability of strontium aluminate as anti-counterfeiting / |
| Statement of responsibility, etc. | Omnia Mohamed Mokhtar Ahmed ; Supervised Yasser Attia Attia , Tawfik Abdelhamid Tawfik Mohamed Khattab |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | الأداء الفوتوكرومى والثبات الضوئى لألومينات السترونشيوم كطلاء مضاد للتزوير لتأمين المستندات |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Cairo : |
| Name of publisher, distributor, etc. | Omnia Mohamed Mokhtar Ahmed , |
| Date of publication, distribution, etc. | 2021 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 114 P. : |
| Other physical details | charts , facsimiles ; |
| Dimensions | 25cm |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc.) - Cairo University - National Institute of Laser Enhanced Sciences (NILES) - Department of Laser Application in Enviromental Metrology, Photochemistry and Photobiology |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Fabrication of photochromic inks are gaining much research interest as they have many diverse applications such as photovoltaic, bio-medical, and anti-counterfeiting. New photochromic film was developed for the preparation of anti-counterfeiting documents utilizing inorganic/organic nanocomposite enclosing a photoluminescent inorganic pigment and a polyacrylic binder polymer.The produced nanocomposite exhibited a fluorescent color change with an optimum excitation wavelength at 358 nm.To generate a translucent film from pigment/polyacrylic nanocomposite, the phosphorescent strontium aluminium oxide pigment should be well-dispersed in the solution of the polyacrylic-based binder without agglomeration.The photochromic nanocomposite was applied efficiently onto commercial cellulose paper documents utilizing the effective and economical spray-coating technology followed with thermofixation. A homogeneous photochromic film was immobilized onto cellulose paper surface to introduce a transparent film changing to greenish-yellow upon exposure to ultraviolet light as depicted by CIE coloration measurements.The photochromic effect was monitored at lowest pigment concentration (0.25 wt%). The spray-coated paper documents exhibited two absorption bands at 256 and 358 nm as well as two fluorescence peaks at 433 and 511 nm |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Additional physical form available note | Issued also as CD |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Anti-counterfeiting |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Luminescent |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Official documents |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Tawfik Abdelhamid Tawfik Mohamed Khattab , |
| Relator term | |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Yasser Attia Attia , |
| 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.M.Sc.2021.Om.P | 01010110085229000 | 22.09.2023 | Thesis | ||
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | مخـــزن الرســائل الجـــامعية - البدروم | 11.02.2024 | Cai01.24.05.M.Sc.2021.Om.P | 01020110085229000 | 22.09.2023 | CD - Rom | 85229.CD |