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"This book is a quick reference source for induction heaters. It ties-in the metallurgy, theory, and practice of induction heat treating from a hands-on explanation of what floor people need to know. It includes practical tables and process analysis of induction heating, and was written to provide a combination of technical and practical information. For example, the book contains a method of analysis for various types of production processes on the same part; shows the recommended microstructure needed for induction hardening for various materials ranging from carbon to powdered metal steels; and discusses various nonconforming conditions in induction hardened parts and how to remedy these conditions. In the Second Edition, new material has been added including updated information on quenching methods, applications, inspection for quality control, and updated material on power supplies. "

"This book describes heat treating technology in clear, concise, and nontheoretical language. It is an excellent introduction and guide for design and manufacturing engineers, technicians, students, and others who need to understand why heat treatment is specified and how different processes are used to obtain desired properties."

"ABSTRAKPada proses kimia yang sesuai, CH4 dapat diolah menjadi syngas yang terdiri atas Hidrogen (H2) dan Carbon Monoksida (CO) yang bermanfaat pada beberapa proses produksi kimia seperti pembuatan metanol dan pembuatan Amonia sebagai bahan dasar dalam produksi pupuk. Salah satu pengolahan gas sintesa saat ini adalah metode konvensional pada oksidasi parsial namun proses ini menggunakan Air Separation Unit (ASU) sehingga membutuhkan energi besar dan biaya tinggi. Untuk mengurangi penggunaan biaya tersebut, maka dibutuhkan alternatif lain untuk meningkatkan efisiensi pemakaian energi. Salah satu penggunaan teknologi yang dikembangkan saat ini adalah Chemical Looping Reforming (CLR) yaitu pengolahan gas alam dengan cara methane reforming untuk menghasilkan syngas menggunakan Looper Metal Okxide (oksida logam) sebagai oxygen carrier, misalnya CaO, Fe2O3, NiO, BaO, CuO, Al2O3 dan lain-lain. Oleh karena itu, penelitian ini dilakukan untuk melihat pengaruh penggunaan energi pada produksi syngas secara konvensional dan CLR, sehingga akan didapat hasil berupa energi yang optimal pada produksi syngas.

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ABSTRACTAt appropriate chemical process, CH4 can be processed to become syngas which consist of Hydrogen (H2) and of Carbon Monoxide (CO) worthwhile at some chemical production process like making of methanol and making of elementary Amonia upon which in fertilizer production. One of the processing of synthetis gas in this time is conventional method at partial oxidation but this process use Air Separation Unit (ASU) so that require big energy and high cost. To lessen usage of expense, hence required by other alternative to increase efficiency usage of energy. One of the usage of developed technology in this time is Chemical Looping Reforming (CLR) that is processing of natural gas by methane reforming to yield syngas use Looper of Metal Oxide as oxygen carrier, such as CaO, Fe2O3, NiO, BaO, CuO, Al2O3 and others. Therefore, this research is done to see influence of usage of energi at syngas production in conventional and CLR, so that will be got result of in the form of optimal energy at production of syngas."

"Metamfetamin digunakan secara ilegal sebagai stimulan karena efek sampingnya dapat meningkatkan kepercayaan diri dan meningkatkan suasana hati menjadi jauh lebih gembira serta euforia. Produksi, peredaran serta penggunaan metamfetamin dilarang di Indonesia sesuai dengan undang-undang No. 35 Tahun 2009 tentang narkotika. Tujuan penelitian ini adalah untuk mendapatkan pelarut yang terbaik untuk ekstraksi metamfetamin, dengan cara membandingkan heksana dalam kondisi netral dan basa pH 10, etil asetat dan pelarut terstandar (Toxitube® Varian). Penelitian dilakukan pada 5 sampel tablet metamfetamin sitaan. Kadar metamfetamin dianalisis menggunakan kromatografi gas dengan kolom RTX-5MS, (panjang 30 meter, diameter 0,25 mm), fase gerak gas helium dengan laju alir 1,0 mL/menit dideteksi dengan detektor massa. Hasil penelitian menunjukkan bahwa etil asetat memiliki area yang lebih besar jika dibandingkan dengan heksana pada kondisi basa pH 10, pelarut terstandar (Toxitube® Varian) dan heksana pada kondisi netral. Berdasarkan data penelitian dapat disimpulkan pelarut ekstraksi dengan hasil optimum untuk analisis tablet metamfetamin secara berturut-turut yaitu etil asetat, heksana pada kondisi pH 10, pelarut terstandar (Toxitube® Varian) dan heksana pada kondisi netral.

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Methamphetamine is used illegally as a stimulant because the side effects can increase confidence and improve mood became much more excited and euphoric. Production, distribution and use of methamphetamine is banned in Indonesia in accordance with law No. 35 of 2009 on narcotics. The purpose of this study is to obtain the best solvents for the extraction of methamphetamine by comparing the hexane in neutral and alkaline conditions pH 10, ethyl acetate and solvent standardized (Toxitube ® Varian).

The study was conducted on five samples of methamphetamine tablets seized. Methamphetamine levels were analyzed using gas chromatography with RTX-5MS column, (length 30 meters, diameter 0.25 mm), mobile phase helium gas with a flow rate of 1 mL / min and was detected with a mass detector.

The results showed that the ethyl acetate has a larger area when compared with the hexane at alkaline condition pH 10, the solvent standardized (Toxitube ® Varian) and hexane at neutral condition. Based on data from this study concluded that the solvent extraction with optimum results for the analysis of methamphetamine tablets respectively is ethyl acetate, hexane at alkaline condition pH 10, the solvent standardized (Toxitube ® Varian) and hexane at neutral condition."