Study of different toner types used in questioned documents via laser spectrochemical analytical techniques / (Record no. 79942)
[ view plain ]
| 000 -LEADER | |
|---|---|
| fixed length control field | 03357cam a2200361 a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | EG-GiCUC |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250223032706.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 210220s2020 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.2020.Za.S |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Zakaria Elsayed Abdelhamid Ahmed |
| 245 10 - TITLE STATEMENT | |
| Title | Study of different toner types used in questioned documents via laser spectrochemical analytical techniques / |
| Statement of responsibility, etc. | Zakaria Elsayed Abdelhamid Ahmed ; Supervised Mohamed Abdel Harith Mohamed , Zienab Abdelfatah Mohamed Abdelsalam , Shaimaa Mostafa Ibrahim |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | دراسة أنواع مختلفة من أحبار الطباعة المستخدمة فى الوثائق المشكوك فى صحتها باستخدام تقنيات التحليل |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Cairo : |
| Name of publisher, distributor, etc. | Zakaria Elsayed Abdelhamid Ahmed , |
| Date of publication, distribution, etc. | 2020 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 116 P. : |
| Other physical details | charts , facimiles ; |
| Dimensions | 25cm |
| 500 ## - GENERAL NOTE | |
| General note | On message stub Ph.D thesis and on the title page M.Sc degree |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc.) - Cairo University - National Institute of Laser Enhanced Science (NILES) - Department of Laser Applications in Environmental Metrology Photochemistry and Agriculture |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Questioned documents examination (QDE) is considered a practical branch of forensic sciences. It is concerned with signatures, handwriting, typewriting, as well as laser printers and photocopiers outputs.The simplicity of using laser printers and photocopiers and its high resolution made them used on a large scale in the counterfeiting and forgery by alteration and/or addition in questioned documents. In the present work, Video Spectral Comparator (VSC), as a common technique in forensics laboratories and laser-induced breakdown spectroscopy (LIBS), as a spectrochemical analytical technique were used to differentiate between different black toners of printers and photocopiers given their absorption and reflection of light, and their elemental composition.The principal component analysis (PCA) chemometric method was used to analyze the spectroscopic data statistically. Measurements were performed on twenty-three different printers and photocopiers (brands and models). VSC investigation is based on different photochemical absorption and reflection properties of toners samples. The LIBS spectra were compared to characterize each toner type. The multivariate statistical analysis based on Principal Component Analysis (PCA) has developed a model of discriminating the toners in questioned documents. Results revealed that VSC offers relatively poor discrimination capability at the same time LIBS has succeeded in the discrimination between different toner types of printers and photocopiers brands. However, it has little power to discriminate between toners of different models of the same brand |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Additional physical form available note | Issued also as CD |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Principal Component Analysis (PCA) |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Questioned documents examination (QDE) |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Video Spectral Comparator (VSC) |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Mohamed Abdelharith Mohamed , |
| Relator term | |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Shaimaa Mostafa Ibrahim , |
| Relator term | |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Zienab Abdelfatah Mohamed Abdelsalam , |
| 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.2020.Za.S | 01010110082770000 | 22.09.2023 | Thesis | ||
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | مخـــزن الرســائل الجـــامعية - البدروم | 11.02.2024 | Cai01.24.05.M.Sc.2020.Za.S | 01020110082770000 | 22.09.2023 | CD - Rom | 82770.CD |