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The study provided a techno-economic optimization technique for acquiring the ideal battery storage capacity in conjunction with a solar array capable of meeting the desired residential load with high levels of self-sufficiency. Moreover, the viability of a proposed photovoltaic battery system was evaluated. With a resolution of one minute, the annual energy consumption, irradiance, and ambient temperature for 2021 have been measured. Simulations of a stationary economic model are run from 2021 to 2030. Based on the experimental evaluation of the annual energy consumption, which was 3755.8 kWh, the study reveals that the photovoltaic array with a capacity of 2.7 kWp is capable of producing an annual energy production of 4295.5 kWh. The optimal battery capacity determined was 14.5 kWh, which can satisfy 90.2% of self-consumption at the cost of energy $0.25/kWh. Additionally, two third-order polynomial relationships between self-consumption and net present costs and energy cost were established. [ABSTRACT FROM AUTHOR]

The electrolysis of renewable energy to produce hydrogen has become a strategy for supporting a decarbonized economy. However, it is typically not cost-effective compared to conventional carbon-emitting methods. Due to the predicted intermediate of low-and zero-marginal-cost renewable energy sources, the ability of electrolysis to connect with electricity pricing offers a novel way to cost reduction. Moreover, renewables, particularly photovoltaics, have a deflationary effect on the value of the grid when they are deployed. This study investigates solar electrolysis configurations employing photovoltaic cells to feed a proton exchange membrane water electrolyzer for hydrogen production. Using experimental meteorological data at 1-min precision, the system has been evaluated in Baghdad, the capital of Iraq. Positioned at the yearly optimum tilt angle for the selected site, the solar array is rated at 12 kWp. Temperature effects on solar module energy loss are taken into account. Several electrolyzers with capacities ranging from 2 to 14 kW in terms of hydrogen production were examined to determine the efficacy and efficiency of renewable sources. MATLAB was utilized for the simulation procedure, with a 2021–2035 project lifespan in mind. The results suggest that a variety of potentially cost-competitive options exist for systems with market configurations that closely approximate wholesale renewable hydrogen. At 4313 h of operation per year, the planned photovoltaic array generated 18,892 kWh of energy. The achieved hydrogen production cost ranges between $5.39/kg and $3.23/kg, with an ideal electrolyzer capacity of 8 kW matching a 12 kWp photovoltaic array capable of producing 450 kg/year of hydrogen at a cost of $3.23/kg. [ABSTRACT FROM AUTHOR]

In the article, the viability of adopting photovoltaic energy systems to convert solar energy into hydrogen in Iraqi four main cities are examined. A 22 kWp off-grid solar system, an 8 kW alkaline electrolyzer, a hydrogen compressor, and a hydrogen tank were modeled for an entire year in order to produce hydrogen. Using hourly experimental weather data from 2021 to 2030, MATLAB/Simulink is used to create a mathematical model of the recommended system behavior. The results revealed a range of annual hydrogen production from 1713.92 to 1891.12 kg, annual oxygen production from 1199.74 to 1323.78 kg, and annual water consumption from 7139.91 to 7877.29 L. Each kilogram of hydrogen costs $3.79. The results indicate that the optimal location for solar hydrogen production systems might be constructed in the central region of Iraq and in other regions with comparable climatic characteristics, particularly those with high radiation levels. [ABSTRACT FROM AUTHOR]

Background and Objectives: osteosarcoma is primary malignancy of the skeleton, commonly developing in children and adolescents. Zoledronic acid is heterocyclic nitrogen containing bisphosphonate, have potent antiresorptive effective in bone disease such osteoporosis, Paget disease and in malignant tumor metastasis to bone. Its antitumor properties arise from the suppression of the mevalonate pathway of tumor cells. Method and Material: osteosarcoma cell line "MG". These cells were exposed to serial concentrations of zoledronic acid (500,250,125,62,31,15µg/ml) alone or in combination with doxorubicin (5µg/ml). After 24h incubation, cytotoxicity was assessed using an MTT assay, ElIZA method, are used to evaluated anti-inflamatory effect of zoledronic acid on via measurement of IL-6, and TNF-a level. Result: zoledronic acid has demonstrated a significant decrease in cell number at all serial concentration (500,250,125,62,31,15µg/m), While zoledronic acid -doxorubicin combination was applied to the cells, highly significant cytotoxic synergism was shown at all concentrations comparison control group. After evaluated by MTT assay. ELIZA method was showed zoledronic acid at high concentration decrease IL-6, TNF-a levels. Conclusion: zoledronic acid has an antiproliferation effect on MG osteosarcoma cell line at serial concentration, while zol -doxorubicin was showed significant cytotoxic synergism above 62µg/ml concentrations, and has showed zoledronic acid at high concentration have antiinflamatory properties decreasing forIL-6, TNF-a. [ABSTRACT FROM AUTHOR]

The paper presents a technical and economic analysis for two energy systems (conventional and renewable) with grid connection. The investigation was carried out using an experimental measurement for the desired load and weather data (solar irradiance and ambient temperature), were 5.1 kWh the daily energy consumption as measured and 4.6 kWh/m2/day the annual average of the solar irradiance. The simulation process was done by using MATLAB and HOMER software at a 1 min time step resolution. The economic optimization objective presented for two energy system scenarios (i) photovoltaic/grid and (ii) diesel/grid, takes into account the economic aspects and component prices based on the Iraqi market and regulations. The diesel generator, very popular in rural areas, is designed to work during the same period as the photovoltaic system (only during day hours). The yearly operating hours were recorded at 4380 h/year, and energy generation was approx. 2349 kWh/year while fuel consumption was 1826 L/year. The results showed that the photovoltaic system in scenario (i) can generate about 7895 kWh, and for the diesel generator in scenario (ii), it can generate approximately 2346 kWh. Furthermore, for scenario (i) the levelized net present cost is $1079 and the cost of energy is about $0.035/kWh, while for scenario (ii) the levelized net present cost is $12,287 and the cost of energy is $0.598/kWh. The use of solar energy is highly recommended compared to diesel generators due to the lowest cost and delivery of energy to the grid. Furthermore, it can capture carbon dioxide by about 5295 kg/year. [ABSTRACT FROM AUTHOR]

Background and Objectives: The world's fourth-deadliest malignancy is colon cancer (CC). is becoming more prevalent. salt enoxaparin Heparin in its fractionated low molecular weight (LMWH) form prevents factor Xa from contributing to clotting. enoxaparin inhibit viability of sw480 colon cancer cell line. Additionally, enoxaparin improved apoptosis while having little effect on cell-cycle progression, which raised doxorubicin's effectiveness. pro-inflammatory cytokines secretion during inflammatory reactions, including TNF-, IL-1, IL-1, and IL-6. The most popular LMWH, enoxaparin, is known to prevent the release of several cytokines from T cells that are involved in inflammatory diseases like asthma, for example IL-4, IL-5, IL-13, and TNF. Materials and Methods: SW480 colon cancer and VERO normal cell line used; these cells were treated with diverse concentrations of enoxaparin to assess the impact of enoxaparin on the viability. Cell viability determines by MTT assay. SW480 cells were treated with different concentrations of enoxaparin the to assess the impact of enoxaparin on inflammation and apoptosis. cell lines were taken for immunoassay by ELISA method using TNF-alpha and caspase3. Results:enoxaparin has no significant effect on the viability of vero normal cell while significantly (P<0.050) reduce in viability of sw480 colon cancer cell.enoxaparin significantly (P<0.050) reduce in TNF-a and significant (P<0.050) increase in caspase3. Conclusion: Enoxaparin decrease viability of SW480 colon cancer cell line and have anti-inflammatory and apoptotic effect. [ABSTRACT FROM AUTHOR]