Browsing UT - Faculty of Mathematics and Natural Sciences by Title
Now showing items 1-20 of 7989
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A monte carlo investigation of the power of white and breuschpagan tests on detecting regression heteroscedasticity
(2001)White and Breusch-Pagan Tests were designed to test whether the data violate the assumption of homoscedasticity in a linear model or not. In this research, a Monte Carlo Simulation was used to investigate the power as well ... -
Abstraksi teks berbahasa Indonesia menggunakan teori knowledge graph
(2011)Text summarization system has been developed in order to select several sentences based on certain criteria. However, this method tends to omit some informations contained in unselected sentences. Therefore, a system is ... -
Activity and stability of glucose biosensor based on Escherichia coli immobilized on zeolite-glutaraldehyde
(2012)Glucose biosensor based on Escherichia coli have been developed recently. Despite of some drawbacks, such as the activity of glucose dehydrogenase (GDH) and the lower electrode stability. The use of zeolite in biosensors ... -
Adaptasi e-learning pada sisi server untuk aplikasi m-learning
(2008)Mobile learning (m-learning) saat ini telah menjadi kecenderungan baru para pelajar (learner) dalam proses pembelajarannya. Hal ini disebabkan perkembangan perangkat telekomunikasi bergerak (mobile devices) yang sangat ... -
Adaptive quiz system berbasis web (studi kasus: mata pelajaran Biologi SMU)
(2008)Penggunaan perangkat komputer dalam metode pembelajaran dapat meningkatkan pemahaman siswa dalam mempelajari materi. Salah satu sistem yang dikembangkan adalah modul quiz berbasis komputer. Adaptive quiz ini dikembangkan ... -
Addiction among Millennials of Internet Usage (Social Networking Sites) in Bandung, West Java
(2018)Background: Internet is one of the most powerful media of the 21st century and has revolutionized education and social communication. The internet (Social Networking Sites or SNSs) has a population of over seven million. ... -
Adomian decomposition method for solving abelian differential equation.
(2009)In this writing, Adomian Decomposition Method is used for solving Abelian Differential Equation. Abelian Differential Equation is a nonlinear differential equation which is hard to solve analytically. A special case of ... -
Adsorben Berbasis Limbah Padat Agar-Agar sebagai Penjerap Zat Warna Indigosol dan Zat Warna Limbah Industri Batik
(2014)This study aimed to compare adsorption capacityof solid waste of agar and its carbonization results for indygosol dyes and to compare coagulation-flocculation using adsorpstion process to reduce batik industry waste dyes. ... -
Adsorben berbasis limbah padat tapioka
(2011)The use of agroindustrial waste and clay mineral have been studied as alternative adsorbents for dyes, such as cibacron blue. In this research, tapioca solid waste, kaolin, bentonite, and the mixture of tapioca solid waste ... -
Adsorben Kitosan Bertaut Silang Glutaraldehida sebagai Penjerap Ion Cu(II).
(2016)Kitosan dapat digunakan sebagai biopolimer yang bermanfaat untuk menjerap ion logam berat. Tujuan penelitian ini adalah membandingkan kapasitas adsorpsi dari adsorben kitosan beads dan kitosan bertaut silang glutaraldehida ... -
Adsorben Logam Berat dari Kopolimerisasi Cangkok Biner Asam Akrilat dan Akrilamida pada Onggok
(2014)To improve properties of superabsorbent polymer (PSA) synthesized from onggok (cassava residual pulp), we have grafted binary monomer mixture of acrylic acid and acrylamide onto onggok in aqueous medium using APS as ... -
Adsorpsi asam lemak bebas dan zat warna menggunakan campuran kaolin-limbah padat tapioka
(2009)Adsorption of free fatty acids in used cooking oil and methylene blue dye is studied. The results showed that the mixture of kaolin and tapioca solid waste is a potential adsorbent for the adsorption free fatty acids and ... -
Adsorpsi asam lemak bebas menggunakan adsorben berbasis limbah padat sagu
(2011)Adsorption of free fatty acid (FFA) from used frying oil was studied, using agricultural solid waste based adsorbent and clay mineral, in this case sago solid waste and kaolin. Acid treatment were carried out for both ... -
Adsorpsi biru metilena pada kaolin dan nanokomposit kaolin/TiO2 serta uji sifat fotokatalisis
(2011)Kaolin is rarely used as an adsorbent due to its small adsorption capacity. Therefore, kaolin was modified into a nanocomposite by physically mixing TiO2 powder with binder. Diffractometer X-ray characterization of Bangka ... -
Adsorpsi biru metilena pada metakaolin dan nanokomposit metakaolin-TiO2 serta uji fotokatalisis
(2011)One method used for handling organic dyes in wastewater is adsorption-photodegradation. This method is based on adsorption of the organic compound by the surface of a solid material that subsequently degrades the organic ... -
Adsorpsi dan desorpsi ion kromium(VI) pada bentonit yang dimodifikasi Heksadesiltrimetilamonium bromida
(2009)Bentonite is abundant mineral in Indonesia and potentially as adsorbent. Bentonite has negatively charge, so bentonite has high capability to adsorp cations, while the capability of bentonite to adsorp anion was very low. ... -
Adsorpsi dan desorpsi kromium (VI) pada zeolit alam asal Lampung termodifikasi Heksadesiltrimetilamonium bromida
(2009)Zeolite is a mineral that is able to adsorp chromium. Chromium has three stable forms in nature,i.e. metal chromium, trivalent chromium, and hexavalent chromium. Among these forms, hexavalent chromium are the most toxic ... -
Adsorpsi Fenol Menggunakan Bentonit Termodifikasi N-Setil-N,N,N-Trimetilammonium Bromida Serta Kajian Kinetika Dan Termodinamikanya
(2017)Bentonit dimodifikasi menggunakan surfaktan N-setil-N,N,N-trimetilammonium bromida (CTAB) untuk membentuk organobentonit yang digunakan sebagai adsorben penjerap fenol. Organobentonit dicirikan menggunakan difraksi sinar ...
