MARC details
000 -LEADER |
fixed length control field |
03285cam a2200313 a 4500 |
003 - CONTROL NUMBER IDENTIFIER |
control field |
EG-GiCUC |
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
fixed length control field |
180419s2017 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 |
Cai01.12.20.M.Sc.2017.En.A |
100 0# - MAIN ENTRY--PERSONAL NAME |
Personal name |
Enas Khalifa Mahfouz Khalifa |
245 10 - TITLE STATEMENT |
Title |
Assessment of environmental hazards of natural radioactivity emitted and heavy elements exist in local cement in Egypt / |
Statement of responsibility, etc. |
Enas Khalifa Mahfouz Khalifa ; Supervised Saher Mohamed Darwish Ahmed , Mogahed Ebrahim Ali Alabyad |
246 15 - VARYING FORM OF TITLE |
Title proper/short title |
تقييم المخاطر البيئية للنشاط الإشعاعي الطبيعي المنبعث و العناصر الثقيلة الموجودة في الأسمنت المحلي في مصر |
260 ## - PUBLICATION, DISTRIBUTION, ETC. |
Place of publication, distribution, etc. |
Cairo : |
Name of publisher, distributor, etc. |
Enas Khalifa Mahfouz Khalifa , |
Date of publication, distribution, etc. |
2017 |
300 ## - PHYSICAL DESCRIPTION |
Extent |
98 , 35 P. : |
Other physical details |
charts , facsimiles ; |
Dimensions |
25cm |
502 ## - DISSERTATION NOTE |
Dissertation note |
Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Physics |
520 ## - SUMMARY, ETC. |
Summary, etc. |
The principal aim of this thesis is to investigate the radiological hazard for cement samples and measure the heavy elements and toxic substances in them. Using Þ spectrometry, the concentration of natural radionuclides 238U, 232Th and 40K has been determined in cement and its raw materials which are utilized as construction materials in Egypt. Twenty three samples of raw materials and final products utilized in the cement factories were collected for study. Thirteen samples were obtained from (Limestone, Clay, Slag, Clinker, gypsum) which represent the raw materials utilized in cement industry and ten samples of final products of commercial cement were obtained from (Portland, El-Mohands and White cement). The activity concentration of 238U, 232Th and 40K in raw materials were observed to be ranged from (56.32 to 615.59) Bq/kg, (11.47 to 77.05) Bq/kg and (68.36 to 948.07) Bq/kg with mean value 134.07, 35.97 and 403.48 Bq/kg for 238U, 232 40 238 232 40 Th and K, respectively. The activity concentration of U, Th and K in final products were observed to be ranged from (62.93 to 234.73 Bq/kg), (20.10 to 38.07 Bq/kg) and (200.53 to 306.58 Bq/kg) with mean value 93.49,29.64 and 257.90 Bq/kg for 238U, 232Th and 40K, respectively. The permissible activity levels of building materials are (50, 50 and 500) Bq/kg for 226Ra, 232Th and 40K, respectively [NEA-OECD, 1979 and UNSCEAR, 1993]. All concentration values of 238U in raw materials and final products are higher than recommended value. The concentration values of 232Th in raw materials and final products are lower than recommended value except sample S1, S3, S8, S10 and S13. The concentration values of 40K in raw materials and final products are lower than recommended value except samples S3, S8 and S13. The results of concentration levels are compared with other measurements from different parts of the world |
530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE |
Additional physical form available note |
Issued also as CD |
653 #4 - INDEX TERM--UNCONTROLLED |
Uncontrolled term |
Environmental hazards |
653 #4 - INDEX TERM--UNCONTROLLED |
Uncontrolled term |
Local cement in Egypt |
653 #4 - INDEX TERM--UNCONTROLLED |
Uncontrolled term |
Natural radioactivity emitted |
700 0# - ADDED ENTRY--PERSONAL NAME |
Personal name |
Mogahed Ebrahim Ali Alabyad , |
Relator term |
|
700 0# - ADDED ENTRY--PERSONAL NAME |
Personal name |
Saher Mohamed Darwish Ahmed , |
Relator term |
|
905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) |
Cataloger |
Enas |
Reviser |
Cataloger |
905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) |
Cataloger |
Nazla |
Reviser |
Revisor |
942 ## - ADDED ENTRY ELEMENTS (KOHA) |
Source of classification or shelving scheme |
Dewey Decimal Classification |
Koha item type |
Thesis |