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排序方式： 共有798条查询结果，搜索用时 23 毫秒
61.
Hassan Hisham Soliman El-Kamash Ahmed Mohamed Ibrahim Haneen Abdel-Salam 《Environmental science and pollution research international》2019,26(25):25641-25655
Environmental Science and Pollution Research - A composite polymer, hydroxyapatite/poly(acrylamide-acrylic acid), was synthesized by gamma-induced polymerization. The factors affecting the sorption... 相似文献
62.
Sihem Guesmi Amel Raouafi Ismail Amri Ahmed Hicham Hamzaoui Abdennacer Boulila Faouzi Hosni Haitham Sghaier 《Environmental science and pollution research international》2020,27(6):5661-5669
The majority of dosimeters currently in use are synthetic and very expensive. Therefore, the study of the dosimetric characteristics of polyphenolic extracts of xerophytes is useful because drought stress causes an increase in the production of these cheap and natural compounds containing benzene rings. Here, the polyphenolic compounds were extracted from Rhamnus lycioides which was collected from Bou-Hedma National Park in Tunisia and identified using liquid chromatography-mass spectrometry (LC-MS). We investigated the impact of cobalt-60 (60Co) irradiation (0–30 kilogray (kGy)) on the color parameters of polyphenolic extracts of R. lycioides using the Konica Minolta CR 300 portable colorimeter and UV–Visible spectroscopy. The structural and morphological characteristics of the irradiated extracts were assessed using Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD) technique and scanning electron microscopy (SEM). Overall, our results suggest that exposure to ionizing radiation (IR) of the polyphenolic components of the xerophyte R. lycioides has produced significant dose-dependent changes in their optical and morphological properties. Thus, these extracts can be valorized as biodosimeters in the dose range from 5 to 25 kGy. 相似文献
63.
Murshed Muntasir Nurmakhanova Mira Elheddad Mohamed Ahmed Rizwan 《Environmental science and pollution research international》2020,27(31):38951-38973
Environmental Science and Pollution Research - This study examines the Environmental Kuznets Curve (EKC) hypothesis in the context of 12 members of the OPEC by utilizing data on both the aggregate... 相似文献
64.
Jumin Ellysia Basaruddin Faridah Bte Yusoff Yuzainee Bte. Md Latif Sarmad Dashti Ahmed Ali Najah 《Environmental science and pollution research international》2021,28(21):26571-26583
Environmental Science and Pollution Research - Reliable and accurate prediction model capturing the changes in solar radiation is essential in the power generation and renewable carbon-free energy... 相似文献
65.
Khan Fahad Saleem Ahmed Mubarak Nabisab Mujawar Tan Yie Hua Karri Rama Rao Khalid Mohammad Walvekar Rashmi Abdullah Ezzat Chan Mazari Shaukat Ali Nizamuddin Sabzoi 《Environmental science and pollution research international》2020,27(35):43526-43541
Environmental Science and Pollution Research - Substantial discharge of hazardous substances, especially dyes and heavy metal ions to the environment, has become a global concern due to... 相似文献
66.
Arunachalam Thangakumar Khader Syed Zameer Ahmed Syed Zameer Ahmed Sidhra Vetrivel Manimaran Syed Ameen Syed Tajudeen Ameer Khadharu Ibrahim Sheriff Prabhu Puniethaa Jayachandran Philp Robinson M. Sabu Dastageer 《Environmental science and pollution research international》2020,27(9):9058-9058
Environmental Science and Pollution Research - The correct presentation of the Author names are shown in this paper. 相似文献
67.
68.
The classical problem of pooling data of two independent random samples drawn possibly from two identical arbitrary populations is considered. Decision to pool the two samples or not is based on the outcome of the preliminary test and then a shrinkage technique is used. In an asymptotic setup, the distributional risks of the proposed estimators are derived and compared. This study reveals the robustness property of the proposed shrinkage preliminary test maximum likelihood estimator (SPTMLE) when the assumed restraints may not hold. It is shown that the proposed estimator provides a wider range than the usual preliminary test maximum likelihood estimator (PTMLE) in which it dominates the classical estimator. More importantly, the SPTMLE provides more meaningful size for the preliminary test. 相似文献
69.
70.
Ayman Alsulaiman Jenny Hewison Khaled K. Abu-Amero Shenaz Ahmed Josephine M. Green Janet Hirst 《黑龙江环境通报》2012,32(11):1109-1113