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Aggregate Suitability Assessment of Wargal Limestone for Pavement Construction in Pakistan

Open Journal of Civil Engineering 2022年第1期12卷 56-74页

作者： Javid Hussain Jiaming Zhang Fitriani Fitria muhammad Shoaib hadi Hussain Ali Asghar Sadam Hussain Geological Engineering China University of Geosciences Wuhan China School of Geophysics and Geomatics China University of Geosciences Wuhan China State Key Laboratory of Hydraulic Engineering Simulation and Safety School of Civil Engineering Tianjin University Tianjin China Department of Oil and Gas Engineering China University of Geosciences Wuhan China

This paper presents the evaluation of the potential aggregate source for pavement construction in Pakistan. Recently the demand for construction materials has been increased significantly due to the establishment of the China-Pakistan Economic Corridor (CPEC) Projects. Therefore, it is essential to look for new resources of construction materials along with the CPEC routes in consideration of this increasing demand. In this context, a Physical and Mechanical characterization investigation is carried out on the Permian Wargal Limestone from Zaluch Nala, Salt Range to explore their potential to utilize as construction materials. The studied samples have tolerable values for all standard engineering parameters, proposed by various national and international agencies such as AASHTO, ASTM, BS, and NHA. Furthermore, as a performance indicator of aggregate overall quality, the evaluated mechanical qualities were integrated into a single characteristic, Toughness Index (TI). The TI values also suggested that the Permian Wargal limestone aggregates meet international quality standards for pavement construction. On the basis of geotechnical testing and Toughness Index (TI), the late Permian Wargal limestone, Zaluch Nala, Salt Range, is strongly recommended as a potential aggregate resource for mega projects such as the China-Pakistan Economic Corridor (CPEC) and other construction projects.

关键词： CPEC Potential Aggregates Geotechnical Properties Toughness Index (TI) Wargal Limestone

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Broad bandwidth SOA-based multiwavelength laser incorporating a bidirectional Lyot filter

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Chinese Optics Letters 2018年第9期16卷 22-26页

作者： Abdul hadi Sulaiman muhammad Zamzuri Abdul Kadir Nelidya Md Yusoff Noran Azizan Cholan Fairuz Abdullah Ahmad Fauzi Abas Mohammed Thamer Alresheedi Mohd Adzir Mahdi Wireless and Photonic Networks Research Center Faculty of Engineering University Putra Malaysia 43400 UPM Serdang Malaysia Institute of Power Engineering Universiti Tenaga Nasional Jalan IKRAM-UNITEN 43000 Kajang Malaysia Department of Physics Kulliyyah of Science International Islamic University Malaysia 25710 Kuantan Malaysia Razak School of Engineering & Advanced Technology Universiti Teknologi Malaysia Kuala Lumpur Jalan Sultan Yahya Petra 54100 Kuala Lumpur Malaysia Department of Communication Engineering Faculty of Electrical and Electronics Engineering Universiti Tun Hussein Onn Malaysia 86400 Batu Pahat Malaysia Department of Electrical Engineering College of Engineering King Saud University Riyadh 11421 Saudi Arabia

We demonstrate a broad bandwidth multiwavelength laser based on a bidirectional Lyot filter and a semiconductor optical amplifier with a mechanism of intensity-dependent loss as the flatness agent. A wide bandwidth of a multiwavelength spectrum of 32.9 nm within a 5 dB uniformity is obtained under optimized polarization param- eters. For this case, the number of generated lasing lines is 329 with a fixed wavelength separation of 0.1 nm. The power stability of this multiwavelength laser is less than 1.35 dB within 200 min time frame. This shows that the bidirectional Lyot filter provides an alternative option for multiwavelength generation in laser systems.

关键词： SOA Broad bandwidth SOA-based multiwavelength laser incorporating a bidirectional Lyot filter PMF HWP

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Antioxidant Effect of Atorvastatin in Type 2 Diabetic Patients

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Pharmacology & Pharmacy 2010年第2期1卷 53-59页

作者： Najah R. hadi Mohammad A. Abdelhussein Omran M. O. Alhamami Ammar R. muhammad Rudha Ekhlas Sabah 不详

Evidence has long been existed regarding the relationship between oxidative stress and diabetes. The present study was conducted to assess the effect of atorvastatin on selected oxidative stress parameters and its effect on lipid profile parameters in dyslipidaemic type 2 diabetic patients. Fifty nine dyslipidaemic type 2 diabetic patients were included in this study. A full history was taken and general examination was performed. The patients were taking an oral hypoglycaemic drug (glibenclamide) during the study. The patients were followed up for 60 days and divided randomly into 2 groups. Group I (n = 31) received no drug and served as dyslipidaemic diabetic control. Group II (n = 28) received atorvastatin tablets 20 mg once daily at night. Blood samples were drawn from the patients at the beginning and after 60 days of follow up between 8:30 and 10:30 am after at least 12-14 hours fasting. Fasting blood glucose, lipid profile, selective oxidative stress parameters, glutathione S reductase (GSH), malondialdehyde (MDA) levels, glutathione S transferase (GST) and catalase (CAT) activities were measured. Renal and hepatic functions were also assessed. The results showed that atorvastatin treatment produced significant increase in serum levels of GSH and High Density Lipoprotein (HDL), while serum levels of MDA, Total Cholesterol (TC), Triglyceride (TG), Low Density Lipoprotein Cholesterol (LDL-C) and Very Low Density Lipoprotein (VLDL) were significantly decreased. However, no significant effect was observed regarding CAT and GST activity. There were insignificant correlations between atorvastatin induced changes in the oxidation markers and the observed changes of the lipid profile. In conclusion, the antioxidant effect of atorvastatin could be unrelated to its hypolipidemic action as there was insignificant correlation between changes in lipid profile and oxidative stress in this study.

关键词： Atorvastatin Type 2 Diabetes Oxidative Stress Dyslipidaemia

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A Brief Review on the Principles of Human Cadaver Preservation and Monitoring of Microbial Degradation

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Forensic Medicine and Anatomy Research 2017年第3期5卷 19-31页

作者： Mohammed H. Karrar Alsharif muhammad Musthafa Abubaker Y. Elamin Elmutasim O. Ibnouf Khalid M. Taha Mamoun A. Alfaki Younis S. Nour Khalid hadi M. Aldosari Anatomy Department Faculty of Medicine Prince Sattam Bin Abdulaziz University Al-Kharj KSA Histology and Embryology Department College of Medicine Ondokuz Maiz University Samsun Turkey Department of Microbiology and Immunology Faculty of Medicine Prince Sattam Bin Abdulaziz University Al-Kharj KSA Emergency Medical Specialtist Department Al-Ghad International Colleges for Applied Medical Sciences Al Madinah Al Munawarah KSA Department of Pharmaceutical Microbiology College of Pharmacy Prince Sattam Bin Abdulaziz University Al-Kharj KSA Department of Medical Microbiology Faculty of Medical Laboratory Sciences Omdurman Islamic University Omdurman Sudan Anatomy Department Faculty of Medicine University of Science and Technology Khartoum Sudan Prince Sattam Bin Abdulaziz University Al-kharj KSA

Putrefaction and decay of preserved cadaver and body parts is one of the major issues that the faculties of medicines in various third world countries are facing. In this study we focus on the meaning of body preservation, causes of putrefaction and we highlight our personal experiences at the Faculty of Medicine in Prince Sattam bin Abdulaziz University in KSA, in preserving the body cadavers. We studied different physical and chemical methods of preservation of cadavers and body parts at the faculty and their efficiency in preventing bacteria and fungi that cause putrefaction and decay.

关键词： Preservation Mummification Plastination Embalming Putrefaction Bacterial Isolation

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