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Ditemukan 4171 dokumen yang sesuai dengan query
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Davis, Sid
"With thousands of new eco-minded houses being built, and the real estate market becoming more attuned to home-buyers' interests, demand for ecologically efficient living spaces is still exceeding the supply. Yet few resources exist for those wanting to build, buy, or remodel their own home to use less energy and be environmentally sensitive. This practical, reader-friendly guide gives readers all the guidance they need to easily become ecologically responsible homeowners."
New York: American Management Association, 2008
e20448653
eBooks  Universitas Indonesia Library
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Santini, Claudio
Victoria: Images Publishing Group, 2009
R 635.965 SAN e
Buku Referensi  Universitas Indonesia Library
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Tanaka, Kakuei
Tokyo: The Simul Press, 1973
330.9 TAN b
Buku Teks  Universitas Indonesia Library
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Obi Chidi
"This study utilized an eco-friendly heterogeneous catalyst in the synthesis of ester via esterification of ethanol and
acetic acid under refluxing conditions. The amount of acetic acid converted was determined by titrimetric method.
Aluminum pillared material was produced from natural clay by ion exchange and calcined at 473 K. Powdered X-Ray
diffraction (PXRD), Fourier Transform Infra-Red (FT-IR) and BET gas sorption analysis were employed to characterize
the pillared material. The result revealed that significant improvement on physicochemical characteristics of the natural
clay occurred as a result of pillaring. The results also revealed that the conversion of acetic acid was dependent on the
catalyst/feed ratio of 2:2:1. The maximum conversion of acetic acid of 95.79% was obtained at the reaction temperature
of 363 K and 150 minutes. The pillared clay material is more active in the conversion of acetic acid than the natural
bentonite clay. This study illustrated that pillared bentonite clay is an eco-friendly solid catalyst for use in the
production of chemical precursors for several industrial products.
Penggunaan Katalis Ramah Lingkungan dalam Produksi Ester. Penelitian ini memanfaatkan katalis heterogen
ramah lingkungan pada sintesis ester melalui esterifikasi etanol dan asam asetat dalam keadaan refluks. Jumlah asam
asetat yang terkonversi ditentukan dengan metode titrimetri. Material berpilar aluminium dibuat dari tanah lempung
alam melalui proses tukar kation dan dikalsinasi pada 473 K. Difraksi sinar-X untuk bubuk (PXRD), Fourier Transform
Infra-Red (FT-IR) dan analisi sorpsi gas BET digunakan untuk karakterisasi material berpilar tersebut. Hasil
menunjukkan adanya penyempurnaan yang signifikian pada karakter psiko-kimia dari tanah lempung alami sebagai
hasil dari pilarisasi. Hasil menunjukkan pula bahwa konversi asam asetat bergantung pada rasio katalis/umpan, sebedari
2:2:1. Konversi maksimum asam asetat sebesar 95.79% diperoleh pada suhu reaksi 363 K dan 150 menit. Material
tanah lempung terpilar terlihat lebih aktif pada komversi asam asetat dibandingkan dengan tanah lempung bentonit
alami. Penelitian ini member gambaran tentang bentonit terpilar sebagai katalis padat ramah lingkungan untuk
digunakan dalam pembuatan prekursor bahan kimia untuk berbagai produk industri."
University of Port Harcourt, Physical Chemistry Unit, Department of Pure and Industrial Chemistry, Faculty of Science., 2016
J-Pdf
Artikel Jurnal  Universitas Indonesia Library
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Kowloon: Gang Da Press, 2011
R 720.47 GRE
Buku Referensi  Universitas Indonesia Library
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"This book constitutes the refereed proceedings of the International Conference Eco-friendly Computing and Communication Systems, ICECCS 2012, held in Kochi, Kerala, India, in August 2012. The 50 revised full papers presented were carefully reviewed and selected from 133 submissions. The papers are organized in topical sections on energy efficient software system and applications, wireless communication systems, green energy technologies, image and signal processing, bioinformatics and emerging technologies, secure and reliable systems, mathematical modeling and scientific computing, pervasive computing and applications."
Berlin: Springer-Verlag, 2012
e20410116
eBooks  Universitas Indonesia Library
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Asep Handaya Saputra
"The electronic industry’s need for semiconductor material is increasing each year due to technology’s rapid development. Semiconductor material has an electric conductivity of approximately 10-8-103 S/cm, and it is used as an important component in electronic devices. Semiconductor material is generally made of plastic modified with conductive filler. The problem with using semiconductor material is that the discarded components can be plastic waste that requires significant time to degrade; therefore, the synthesis of semiconductor material from natural substances must be observed. One of these natural substances is nata de coco fiber modified with a conductive filler. The impregnation method is used in the synthesis of the nata de coco fiber composite. The fillers used in this study are ZnO and silica, and the size of the filler particle and the concentration of the filler suspension are used as variations. From the SEM-EDX results, it can be seen that the filler is successfully deposited on the nata de coco fiber. Silica filler gives a higher conductivity than ZnO filler because of its lower energy band gap. The highest conductivity result is obtained from the composite impregnated in a 0.3-0.4 mm particle diameter of filler with 3% w/v suspension concentration for three days, producing the conductivity result of 6.95×10-6 S/cm for ZnO filler and 10.1×10-6 S/cm for silica filler, or about 16 times higher than the conductivity of nata de coco fiber."
Depok: Faculty of Engineering, Universitas Indonesia, 2015
UI-IJTECH 6:7 (2015)
Artikel Jurnal  Universitas Indonesia Library
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Rainey, Dennis
Arkansas: The Lockman Foundation; 1989,
R 248.844 RAI b
Buku Referensi  Universitas Indonesia Library
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Yudelson, Jerry
New York: McGraw-Hill, 2009
721.046 7 YUD g
Buku Teks  Universitas Indonesia Library
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Lengen, Johan van
California: Shelter Publications, 2008
R 720.47 LEN b
Buku Referensi  Universitas Indonesia Library
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