
is a Portuguese-speaking in the , off the western equatorial coast of . It consists of two around the two main islands: and , located about 140 kilometres (87 miles) apart and about 250 and 225 kilometres (155 and 140 miles), respectively, off the northwestern coast of . . 圣多美和普林西比民主共和国(葡萄牙語:República Democrática de São Tomé e Príncipe),通稱聖多美和普林西比(São Tomé e Príncipe),是位于西部的岛国,由、和附近一些礁、屿组成。面积1,001平方公里。人口约90%居住在圣多美岛。居民主要是,还有和,为官方语言,原为。1975年7月12日独立,. [pdf]
"Patrice Trovoada takes office as Prime minister of Sao Tome and Principe – Medafrica Times". Archived from the original on 11 November 2022. Retrieved 6 December 2022. ^ Becker, Kathleen (26 June 2014). São Tomé and Príncipe. Bradt Travel Guides. ISBN 978-1-84162-486-0. Archived from the original on 6 November 2022. Retrieved 21 June 2022.
The Human Rights Measurement Initiative (HRMI) finds that Sao Tome and Principe is fulfilling only 83.8% of its expected commitments to the right to education based on the country's level of income. HRMI breaks down the right to education by looking at the rights to both primary education and secondary education.
Tertiary institutions are the National Lyceum and the University of São Tomé and Príncipe. São Toméan culture is a mixture of African and Portuguese influences. São Toméans are known for ússua and socopé rhythms, while Príncipe is home to the dêxa beat.
After independence, control of these plantations passed to various state-owned agricultural enterprises. The main crop on São Tomé is cocoa, representing about 95% of agricultural exports. Other export crops include copra, palm kernels, and coffee.

Magnesium started to be investigated as a means to store hydrogen around 50 years ago, since it has the advantage of fulfilling the “natural” targets of (i) high abundance (2% of earth surface composition and virtually unlimited in sea water), (ii) non toxicity and (iii) relative safety of operation as compared to other light elements and their hydrides that quickly and exothermically oxidize in air. [pdf]

During the metal forming process, which is generally under the coupling effects of the mechanical and thermal fields, materials are elasto-plastically deformed under loading conditions including certain stress, strain (strain rate) and temperature states, thereby the needed shape and the desirable structure of the workpiece are obtained with the tailored microstructure and properties, in such a way to have the unique advantages of high productivity, low cost, green manufacturing, and good performance of the fabricated parts compared with other materials processing and manufacturing technologies such as machining, casting, welding, etc. [pdf]
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