Economic Analysis of Stand-Alone Hybrid Wind/PV/Diesel Water Pumping System: A Case Study in Egypt

The design and evaluation of a stand-alone hybrid renewable energy system for pumping underground water for small farm irrigation is presented. Given environmental conditions, system specifications and daily load demand data, the optimal size of main system components is obtained using a sizing algorithm. Different renewable energy systems are compared using yearly simulations, on hourly base via specialized commercial software simulation packages PVSYST and HOMER, to simulate the system performance and to reach the optimum configurations based on the objective criteria. The criteria used in economic optimization are the net present cost and the cost of energy, with the percent of the capacity shortage. The following systems can be compared: PV only, PV with horizontal axis wind turbine, PV with vertical axis wind turbine, and PV with horizontal axis wind turbine and diesel generator and diesel generator only. The simulation also was carried out for different load patterns for optimum operation. The study was illustrated for climatic conditions of an isolated area in El-Tour City, Sinai, Egypt. The installed 3.42 kW PV water pumping system for irrigation purposes in the same site was also described

Comparison of Three Protocols: Dietary Therapy and Physical Activity, Acupuncture, or Laser Acupuncture in Management of Obese Females

AIM: The aim of this study was to compare efficiency of three types of obesity management protocols: dietary measures and physical activity; acupuncture or laser acupuncture with   healthy diet among obese females.SUBJECTS AND METHODS: Randomized longitudinal prospective study, carried out on 76 adult females. Blood pressure, anthropometric, ultrasonographic and biochemical assessments were done.RESULTS: Females undergo nutritional intervention showed highly significant improvement in the anthropometric measurements, visceral fat at umbilicus by US and diastolic blood pressure (decreased), and insignificant differences in fasting blood sugar and lipid profile. Female undergo acupuncture intervention showed highly significant improvement in visceral fat by US, lipid profile (decreased triglycerides, total cholesterol and LDL, and increased HDL), and decreased fasting blood sugar, and insignificant differences in the anthropometric measurements. Those undergo laser intervention showed highly significant improvement in all anthropometric measurements under study, visceral fat at umbilicus by US, blood pressure and some parameters of lipid profile (decreased total cholesterol and LDL). CONCLUSIONS: Nutritional intervention alone could be used to reduce weight if the lipid profile within normal range, but if it is impaired, acupuncture should be used beside. To strength the reduction in body anthropometry, laser intervention was recommended beside the nutritional intervention

Investigate of Haemostatic and Fibrinolytic System Parameters among Sickle Cell Anaemia Patients in the Khartoum State

Introduction: A sickle cell anaemia one of a haemoglobinopathy, which constituted as a model for genetically inherited disorders, the course of the disease involves may crises, the investigation of hemostatic components as fibrinogen and fibrinolysis as D-dimer, reflect the overall hemostatic status in the sickle cell anaemia patients. Aim: To investigates hemostatic and fibrinolytic system parameters among sickle cell anaemia patients in the Khartoum state. Methods: The study was conducted in Khartoum state, in JafarIbn Auf Reference Hospital for children as descriptive case-control, a laboratory-based study from 2017-18, specimens were collected randomly of the study population with irrespective to age and gender, blood draw in tri-sodium citrate container, the ethical and consent were obtained. The fibrinogen level was estimated by CA51 semi-automated coagulation analyzer optically based, and the D-dimer were assayed by MISPA-i2, a nephelometric based, the results for each parameter were recorded and using statistical package for the social sciences (SPSS) software for analysis by independent T-test and the statistical significance > 0.05. Results: A hundred participants fifty as study group (HbSS) sickle cell anemic Sudanese child clinically and laboratory-confirmed and fifty healthy as the control group, in comparing a mean of fibrinogen show statistically insignificant (P value 0.645) study group 291.1 ± 107.8 mg/dL and control group 283.4 ± 49.1 mg/dL, but there was a significant difference in comparing a mean of D-dimer in study group 0.56 ± 0.33 μg/mL and control group 0.33 ± 0.14 the P. value 0.00015. Conclusion: The level of D-dimer may be used as a hypercoagulability biomarker in comparison to the level of fibrinogen level for sickle cell anaemia Sudanese child