20 research outputs found

    ME D IA PE MBE L A JAR AN BUKU IN TE RAKTIF PE NG E NAL AN RE SISTO R UN TUK MA TA PE L AJ AR AN TEKN IK L ISTR IKD I SMK MUD A PA TR IA KA LASAN

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    ME D IA PE MBE L A JAR AN BUKU IN TE RAKTIF PE NG E NAL AN RE SISTO R UN TUK MA TA PE L AJ AR AN TEKN IK L ISTR IK D I SMK MUD A PA TR IA KA LASAN ABSTR AK O le h : Ron i Im adud d in N IM: 085 02 24102 7 P enelit i an i ni bert ujuan unt uk meng et ahui d esai n, unjuk k erja, serta t i ng kat k el ay ak an dari M ed ia P embel aj aran Buku Int erak t if P eng enal an Resist or Unt uk M at a P el ajaran T ek nik L i st rik Di SM K M ud a P at ria K alasan . P enelit i an i ni merupak an p enelit i an Re se ar ch a n d Deve lopmen t. Obj ek p enelit ian ad al ah M ed ia P emb elaj aran Buk u Int erak t if Peng enal an Resist or Unt uk M at a P el ajar an Tek nik L i st ri k . T ahap p eng emb ang an p rod uk melip ut i 1 ) . Analisis, 2 ) . Desai n, 3 ) . Imp l ementasi, 4 ) . Peng ujian, 5 ) . Valid asi, dan 6 ) . Uji cob a p emak aian. M et od e y ang d ig unakan dal am p eng umpul an d at a melip ut i : 1 ) P eng ujian d an P engamat an unj uk k erja, 2 ) . Ang k et p enelit i an. Ad ap un v alid asi med ia p emb elaj aran melib atk an dua ahli materi p emb el aj aran d an d ua ahli med ia p emb el ajaran dan uji cob a p emak ai an d il akuk an oleh 20 siswa. Hasil p enelit i an menunj uk k an bahwa unjuk k erja M ed ia p emb elaj aran b uk u i nterakt if p eng enal an r esist or unt uk mat a p el aj aran t ek nik l ist rik di SMK M ud a p at ria Kal asan i ni sud ah sesuai d eng an t uj uanny a sebagai med ia p emb el aj aran p eng enal an resist or. t erd iri d ari b ag i an samp ul b uku, hal aman p ert ama berisik an p eng ert i an resist or secara um um, halaman kedua b erisi p eng ert i an r esist or secara t eori d an p eng enal an fung si ny a, hal aman k et iga b erisi t ent ang macam resist or d an b ahan pemb uat nya, hal aman k eempat b erisi t ent ang nil ai resist ansi resistor dan p emb acaan g el ang warna d an hal aman k elima b e risi rang kai an resistor secara seri d an p aralel . Hasil v alid asi isi ol eh ahli mat eri p emb el aj aran memperoleh t i ng kat v alid it as d eng an p ersent ase 89, 71% d eng an k at egori sangat l ay ak , v alid asi k o nst ruk o leh ahli m ed ia p embel aj aran memp erol eh ti ng kat v alid it as d engan p ersent ase 77, 18% d eng an k at eg ori sang at l ay ak. Sed angk an d al am uji p emakai an oleh siswa d i SMK M ud a P at ria K al asan mend apat kan vali ditas seb esar 81, 81% d eng an k at eg ori sang at lay ak . Kat a kunci : M ed ia P embel aj aran, Buk u Int erakt i f, P eng enalan r esist o

    Acid Removal From Saline Media

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    Naphthenic acid (NA) is also known as organic acid within the crude. The presence of NA is a major concern in oil and gas industry due to its ability to cause corrosion. The corrosion cause by NA can damage the production and refinery equipment as well as transportation and storage facilities in oil and gas industry. The concentration of acid in the crude can be determined by the value of Total Acid Number (TAN). In this project, the author used crude oil provided by PETRONAS for experiments. The author will study on the rate of acid extraction using Ionic Liquid (IL). Ionic liquids refer to salt exist in a liquid state over a wide range of temperature. In this project, the author used two different based IL to extract acid in the crude oil sample. Other than that, the author used different sea water volume to study its effect. The project started by doing some research on journal and research paper which related to the topic investigated. In order to obtain result and confirmation regarding the hypothesis or theory made a lot if lab work and experiment are done. There are (3) three main processes involve in this project; Reaction, Extraction and Settling (R: E: S) process. The experiments are done under various parameters to study the effect of varying the parameters on extraction efficiency. Under these parameters set-up and chemicals used, the author will study the rate of acid removal from saline media. The results of this project show that ionic liquid can be used to extract organic acid from the crude oil. The extraction efficiency is ranging from 50% - 80%. Other than that, increase in salinity’s concentration show decrease in TAN of crude oil. The acid extraction is proven to be more efficient under specific parameters; solvent as the solvent, time taken for R: E: S process is 30:60:60 and 800 rpm. Based on the gas chromatography result, the amount of hexanoic acid extracted is more than dodecanoic acid

    ANALISIS POSTUR KERJA MENGGUNAKAN METODE OWAS (OVAKO WORKING POSTURE ANALYSIS SYSTEM) DAN QEC (QUICK EXPOSURE CHECK) PADA PT BANGUN KUBAH SARANA

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    Jika membutuhkan abstrak atau isi jurnal silahkan menghubungi author melalui [email protected] atau [email protected] Dipublikasikan tanggal: 14 Februari 202
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