slj.co.kr的 10 大竞争对手

l-diff.com

당신의 공간을 빛나게 하는 비비드 아트&오브제: 포스터, 캔버스, 그림 액자, 모빌 등

lib.eplib.or.kr

상림마을작은도서관, 신사어린이도서관, 불광천작은도서관, 녹번만화도서관, 효경골마을문고, 은평어린이영어도서관, 역마루작은도서관, 은평작은도서관, 대조꿈나무어린이도서관, 응암1동문화의집, 갈현1동문화의집

korearf.kpipa.or.kr

국내 최대 독서문화축제, 대한민국독서대전! 책과 함께 하는 북토크, 체험, 전시, 공연, 학술/토론, 시민참여 행사 등! 매년 새로운 책의 도시와 함께합니다.

malzemebilimi.net

Türkiye’nin Hızlandırıcı ve Işınım Laboratuvarı (TARLA), sonunda süper iletken elektron hızlandırıcısını aktif hale getirdi. Bu gelişme, bilim ve mühendislik alanlarında çığır açacak araştırmalara olanak sağlayacak. Ankara Üniversitesi Gölbaşı Kampüsü’nde gerçekleştirilen TARLA Elektron Hızlandırıcısı Devreye Alma Töreni’nin ilk aşamasında, Sanayi ve Teknoloji Bakanı Mehmet Fatih Kacır, TARLA’nın sunduğu olanakların sağlık, havacılık, çevre ve uzay gibi geniş...

culturahistorica.es

Discover the fascinating diversity of languages spoken in Mexico, from Spanish to over 60 Indigenous tongues that reflect the country’s deep cultural roots.

gchron.copernicus.org

Abstract. Conventional Re–Os isochrons are based on mass spectrometric estimates of 187Re/188Os and 187Os/188Os, which often exhibit strong error correlations that may obscure potentially important geological complexity. Using an approach that is widely accepted in 40Ar/39Ar and U–Pb geochronology, we here show that these error correlations are greatly reduced by applying a simple change of variables, using 187Os as a common denominator. Plotting 188Os/187Os vs. 187Re/187Os produces an “inverse isochron”, defining a binary mixing line between an inherited Os component whose 188Os/187Os ratio is given by the vertical intercept, and the radiogenic 187Re/187Os ratio, which corresponds to the horizontal intercept. Inverse isochrons facilitate the identification of outliers and other sources of data dispersion. They can also be applied to other geochronometers such as the K–Ca method and (with less dramatic results) the Rb–Sr, Sm–Nd and Lu–Hf methods. Conventional and inverse isochron ages are similar for precise datasets but may significantly diverge for imprecise ones. A semi-synthetic data simulation indicates that, in the latter case, the inverse isochron age is more accurate. The generalised inverse isochron method has been added to the IsoplotR toolbox for geochronology, which automatically converts conventional isochron ratios into inverse ratios, and vice versa.