US arms sold to Saudi Arabia and UAE end up in wrong hands

Saudi Arabia and the United Arab Emirates, its main partner in the war, have used the US-manufactured weapons as a form of currency to buy the loyalties of militias or tribes, bolster chosen armed ...

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Effect of Elevated Temperatures on Mortar with Naturally ...

The mechanical behavior of basaltic volcanic ash (VA) and fly ash (FA) as a cement replacement under elevated temperatures is mainly investigated in the current study. For this, cement content has been partially replaced with and without the presence of electric arc furnace slag (S). Four distinct ranges of temperatures (200°C, 400°C, 600°C, and 800°C) were selected, …

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Effect of Elevated Temperatures on Mortar with Naturally ...

After optimizing the grinding process, the EAF slag aggregates were put in a grinding bowl made of tungsten along with 5 grinding balls of the same material and subjected to grinding for 30 min in three cycles, each of 10 min duration and a pause of 10 min were provided between two cycles to keep the temperature of bowl low which was necessary ...

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Atmosphere | Free Full-Text | Air Pollution Associated ...

Air pollution associated with suspended particles has become a significant concern in Vietnam recently. The study aimed to (1) investigate dust sources; (2) measure concentration levels of Total Suspended Particulate (TSP), Particulate Matter (PM) fractions; (3) identify silica levels and the correlation with respirable particles at a cement grinding plant in …

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Ordinary Portland Cement- OPC - Expert Civil

Ordinary Portland Cement (OPC) is mostly used for common structures and also for important civil works. In India, about 70% of cement is of this category. It has mainly three grades. Grade means mortar cube strength in N/mm2 after 28 days Lets know more about the Ordinary Portland Cement.

The Intended Nationally Determined Contribution of the ...

As part of its sustainability programme, the Kingdom of Saudi Arabia plans to build the world's largest carbon capture and use plant. This initiative aims to capture and purify about 1,500 tons of CO 2 a day for use in other petrochemical plants. Saudi Arabia will operate on pilot testing

Digital Response During the COVID-19 Pandemic in Saudi Arabia

The major telecom companies in Saudi Arabia, namely the Saudi Telecom Company (STC), Mobily, and Zain Saudi Arabia, have announced free-of-charge data services to the most used educational platforms as well as health and telehealth applications to facilitate the smooth delivery of e-learning as well as health care delivery during the pandemic.

UPDATED FIRST NATIONALLY DETERMINED CONTRIBUTION

change. The Kingdom of Saudi Arabia exhibits significant vulnerability in all three aspects. As an arid country with a harsh climate and sensitive ecosystem, Saudi Arabia is particularly vulnerable to climate change. About 76% of its area (including 38% as deserts) is non-arable land. The average annual rainfall in the Kingdom is low.

Saudi Arabia and China are accused of using sports to ...

Saudi Arabia is putting on the Formula One Grand Prix this weekend. And China is hosting the Winter Olympics. Both countries face major accusations of …

Gulf Business - The Latest Middle Eastern & Arabian News ...

Gulf Business is the regions first and leading business magazine. Region-wide, it has remained the preferred magazine for decision-makers, corporate leaders and high-ranking business and ...

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Gulf leaders conclude GCC summit in Riyadh, calling for ...

Gulf Cooperation Council (GCC) leaders stressed the importance of accurate, complete and continuous implementation of the vision of Saudi Arabia's King Salman bin Abdulaziz Al Saud, which calls ...

(PDF) Rice Husk Ash-Based Concrete Composites: A Critical ...

Using cost-effective and commonly obtainable RHA as mineral fillers in concrete brings plentiful advantages to the technical characteristics of concrete and to ensure a clean environment.

Adobe Flash Player End of Life

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Comparison between Growing Plants in Hydroponic System …

Jeddah 21589, Saudi Arabia [email protected] Abstract - As the world population grows, the demand and need for different products, especially food products, grow as well. Because of this growing demand, there will be an expected food crisis in the coming years. To prevent that crises from happening, other methods

Experimental and Theoretical Study of a New Technique for ...

Currently, marble waste is valued by incorporating powders, obtained by drying and grinding sludge resulting from marble blocks cutting operation, or the aggregates, obtained by crushing the solid waste, on self-compacting concrete. These two procedures require a lot of energy. This experimental and theoretical work focuses on the direct incorporation of marble sludge in self …

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Saudi Arabia Diesel Gensets Market Size, Share & Diesel . Saudi Arabia diesel gensets market is forecast to surpass 500 million by 2023. Anticipated growth in the market can be attributed to increase in number of infrastructure projects, growing electricity demand and favorable government initiated schemes such as, Saudi Arabia Vision 2030, which has resulted in …

Fly Ash, Slag, Silica Fume, and Natural Pozzolans, Chapter 3

The use of these materials in blended cements is discussed in Chapter 2 and by Detwiler, Bhatty, and Bhattacharja (1996). ... process, the fused material cools and solidifies into spheri-cal glassy particles called fly ash (Fig. 3-2). ... and the desired effects on …

Saudi Journal of Biological Sciences - Journal - Elsevier

Saudi Journal of Biological Sciences is an English language, peer-reviewed scholarly publication in the area of biological sciences.Saudi Journal of Biological Sciences publishes original papers, reviews and short communications on, but not limited to: • Biology, Ecology and Ecosystems, Environmental and Biodiversity • Conservation

effect of using pozolana on grinding process in saudi arabia

this effect was related to the increase of water adsorption as a result of increasing the specific surface area of bentonite taking place with grinding up to 60 min by progress of grinding the intensity of the bands decrease (spectrum of g 120) indicating to decrease the surface area due to aggregation of bentonite particles and …

Using Learners' First Language in EFL Classrooms

Eman Alshehri, King Abdulaziz University, Saudi Arabia Abstract This study explores the attitudes of EFL teachers towards using learners' first language (L1) in their classes. It also considers the frequency and functions of using L1 in EFL classes. A mixed-methods study using questionnaires and follow-up interviews was conducted to collect data