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In metallurgy, peening is the process of working a metal's surface to improve its material properties, usually by mechanical means, such as hammer blows, by blasting with shot (shot peening), focusing light (laser peening), or in recent years, with water column impacts (water jet peening) and cavitation jets (cavitation peening). [1]
National examination in Indonesia. National Exam (Indonesian: Ujian Nasional, commonly abbreviated as UN or UNAS) [1] was a standard evaluation system of primary and secondary education in Indonesia and the determining factor of quality of education levels among the areas that are conducted by the Center for Educational Assessment of the Ministry of Education and Culture.
It is a notion that students must master the lower level skills before they can engage in higher-order thinking. However, the United States National Research Council objected to this line of reasoning, saying that cognitive research challenges that assumption, and that higher-order thinking is important even in elementary school.
Penning ionization is a form of chemi-ionization, an ionization process involving reactions between neutral atoms or molecules. [1] [2] The Penning effect is put to practical use in applications such as gas-discharge neon lamps and fluorescent lamps, where the lamp is filled with a Penning mixture to improve the electrical characteristics of the lamps.
The emergence of Islamic state in Indonesia is noted by the acculturation of Islamic and Hindu-Buddhist traditions. At this time, pondok pesantren, a type of Islamic boarding school was introduced and several of them were established.
Dizziness is an imprecise term that can refer to a sense of disorientation in space, vertigo, or lightheadedness. [1] It can also refer to disequilibrium [2] or a non-specific feeling, such as giddiness or foolishness.
Schimmelpenning syndrome is a neurocutaneous condition characterized by one or more sebaceous nevi, usually appearing on the face or scalp, [1] associated with anomalies of the central nervous system, ocular system, skeletal system, cardiovascular system and genitourinary system.
Rawa Pening (literally meaning 'Clear Swamp', from the Javanese Bening) is a lake in the Ambarawa Basin in Central Java, Indonesia. It serves as a source of power, irrigation, and flood control, and is used for fishing.