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Cicih Sugianti,Novi Apratiwi,Diding Suhandy,Mareli Telaumbanua,Sri Waluyo,Meinilwita Yulia    

This study aims to identify the authentication of civet coffee using a Soft independent modeling of class analogy(SIMCA) method and principal component analysis (PCA). The test carried out on the coffee powder measuring0.297 millimeters (mesh 50). Compar... see more


Meinilwita Yulia,Riri Iriani,Diding Suhandy,Sri Waluyo,Cicih Sugianti    

There are two popular coffees in Indonesia, namely Arabica and Robusta coffees. Arabica coffee has a better quality than Robusta do. This research aimed to identify the  purity of Arabica coffee; and Robusta as mixture ingredient, by using technolog... see more


Y H El-Sharkawy    

Background: Carious lesions are formed by a complex process of chemical interaction between dental enamel and its environment. They can cause cavities and pain, and are expensive to fix. It is hard to characterize in vivo as a result of environment ... see more


Muhammad MUBARAKI    

Two performance-grade asphalt binders, PG 64-10 and PG 76-10, and two modifiers, Acrylate Styrene Acrylonhrtilrei (ASA) polymer and nanomaterials of Al2O3, have been used to modify properties of asphalt mixes. The main function of this study is to charac... see more


Claudia Rivera,Wolfgang Stremme,Michel Grutter    

The use of satellite data in combination with ground-based measurements can provide valuable information about atmospheric chemistry and air quality. In this study, ground-based Differential Optical Absorption Spectroscopy (DOAS) measurements of nitrogen... see more

Revista: Atmósfera