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| 003 | EG-GiCUC | ||
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| 008 | 210508s2021 ua d f m 000 0 eng d | ||
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_aEG-GiCUC _beng _cEG-GiCUC |
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| 041 | 0 | _aeng | |
| 049 | _aDeposite | ||
| 097 | _aPh.D | ||
| 099 | _aCai01.12.17.Ph.D.2021.Ho.O | ||
| 100 | 0 | _aHossam Mohammmad Hassan Abdelwahab | |
| 245 | 1 | 0 |
_aOn censoredand missing observationsin nonstationary time series / _cHossam Mohammmad Hassan Abdelwahab ; Supervised Eid H. Doha , Abdel H. Elshaarawi |
| 246 | 1 | 5 | _aحول القيم المفقودة و المراقبة للسلاسل الزمنية الغير مستقرة |
| 260 |
_aCairo : _bHossam Mohammmad Hassan Abdelwahab , _c2021 |
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_a83 P. : _bcharts ; _c25cm |
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| 502 | _aThesis (Ph.D.) - Cairo University - Faculty of Science - Department of Mathematics | ||
| 520 | _aExposure to toxic contaminants in the environment harm human and an- imal health as well as disturb the integrity and function of the impacted ecosystem.The impact could belocal ,regional ,and global.The concen- tration of a toxic substance below or above detection limits or thresholds in environmental samples is frequently recorded as non-detect ,which cre- ate a left or right censoring .Interval censoring occurs when the correct values are known only for those falling above a lower threshold and below an upper threshold.Multiple censored points are also important in prac- tice, as censoring threshold values may change overtime .In this thesis, we aim to estimate the environmental contaminants concentration and loading in the presence of censored and missing value | ||
| 530 | _aIssued also as CD | ||
| 653 | 4 | _aCensoredand missing | |
| 653 | 4 | _aMaximum likelihood estimates | |
| 653 | 4 | _aNonstationary Time Series | |
| 700 | 0 |
_aAbdel H. Elshaarawi , _eSupervisor |
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| 700 | 0 |
_aEid H. Doha , _eSupervisor |
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| 856 | _uhttp://172.23.153.220/th.pdf | ||
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_aNazla _eRevisor |
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_aShimaa _eCataloger |
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_2ddc _cTH |
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_c80831 _d80831 |
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