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  • Energy Research
  • 2016-2025
  • Indonesian

  • Authors: Komalasari, M.; Peteru, S.; Atmadja, S.; Chan, C.;
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  • Authors: Akhiruddin, Muhammad; Lubis, Muhammad Firhan Hafani; Sihaloho, Jupriyanto;

    34 Halaman ; Temperatur yang tinggi umumnya kaan memberikan produksi bioas yang baik. Namun suhu tersebut sebaiknya tidak boleh melebihi suhu kamar. Bakteri ini hanya dapat berkembang bila suhu disekitarnya berada pada suhu kamar. Suhu yang baik untuk proses pembentukan biogas berkisar antara 20 - 40 derajat celcius dan suhu optimum antara 28-30 derajat celcius. Dengan temperatur itu, proses pembuatan biogas akan berjalan sesuai dengan waktunya. Tetapi beda bila temperatur terlalu rendah, maka waktu untuk membentuk biogas akan lebih lama.

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  • Authors: Mubarak, Duta;

    Tingginya kebutuhan nutrien bagi pertumbuhan A. platensis berakibat pada pemenuhan kebutuhan pupuk yang tinggi. Salah satu cara mengatasi hal tersebut adalah dengan pemanfaatan limbah tinggi nitrogen hasil olahan minyak kelapa sawit berupa limbah cair yang dikenal dengan nama palm oil mill effluent (POME) sebagai media pertumbuhan A. platensis. Penelitian ini bertujuan mengevaluasi konsentrasi POME yang efektif sebagai media pertumbuhan A. platensis. Inokulan A. platensis diinokulasi ke dalam 15 unit wadah berukuran 15 L dan ditambahkan POME dengan konsentrasi berbeda, yaitu 10% v/v (P10), 20% v/v (P20), dan 30% v/v (P30) dan tanpa penambahan POME sebagai kontrol (K). Kepadatan A. platensis diukur menggunakan spektrofotometer pada panjang gelombang 680 nm. Kepadatan awal yang digunakan pada awal pemeliharaan memiliki nilai absorbansi optical density (OD) berkisar 0,50–0,55. Parameter yang diukur adalah laju pertumbuhan spesifik (LPS), biomassa panen A. platensis, efisiensi penurunan chemical oxygen demand (COD) dan efisiensi penurunan biological oxygen demand (BOD). Hasil penelitian menunjukkan bahwa POME dapat digunakan sebagai media pertumbuhan A. platensis. Pada perlakuan konsentrasi POME 10% (v/v), mampu meningkatkan laju pertumbuhan spesifik sel, biomassa serta mampu memanfaatkan karbon organik untuk tumbuh dalam POME yang ditunjukan pada penurunan COD dan BOD. ; The high need for nutrients for the growth of A. platensis results in meeting the high need for fertilizer. One way to overcome this is by utilizing high- nitrogen waste resulting from processed palm oil in the form of liquid waste known as palm oil mill effluent (POME) as a growth medium for A. platensis. This study aims to evaluate the effective concentration of POME as a growth medium for A. platensis. The A. platensis inoculant was inoculated into 15 units of 15 L containers and POME was added with different concentrations, namely 10% v/v (P10), 20% v/v (P20), and 30% v/v (P30) and without the addition of POME as a control (K). The density of ...

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  • Authors: Raihan Safitri;

    ABSTRAKSilika adalah salah satu bahan alam yang melimpah di Indonesia. Di alam, silika sulit ditemukan dengan kemurnian tinggi, sehingga perlu dilakukan penelitian tentang pemurnian silika. Metode acid leaching adalah salah satu metode untuk meningkatkan kemurnian silika. Penelitian ini bertujuan untuk meningkatkan kemurnian silika dan melihat kemampuan larutan asam (HCl) sebagai agen leaching pada proses pemurnian silika. Proses pemurnian menggunakan asam klorida dengan variasi konsentrasi 3,7%, 7,4% 11,1% ,14,8% dan 18,5%. Hasil pengamatan SEM-EDX dari foto mikrograf memperlihatkan bentuk tekstur butiran-butiran tajam. Hasil Analisis XRF menunjukkan bahwa konsentrasi awal silika dalam batuan sebelum proses leaching adalah sebesar 95,21%. Setelah proses leaching menggunakan larutan HCl 11,1% terlihat bahwa kadar kemurnian silika meningkat menjadi 99,75%. Kemudian diambi lkonsentrasi larutan HCl 11,1% untukdilakukan proses leaching denganmemvariasikanwaktuleachingyaitu 4jam, 7jam, 10 jam, 13 jam dan 16 jam. Hasil yang didapatkan bahwa pada waktu leaching selama 10 jam didapatkan persentase kadar silika yaitu 99,80%. Berdasarkan hasil XRF maka didapatkan konsentrasi larutan HCl yang optimum untuk kemurnian silika yaitu 11,1% dan waktu optimum pada 10 jam. Hasil pengamatan gambar SEM-EDX menunjukkan bahwa proses leaching telah berhasil mencapai kemurnian, ditunjukkan dengan hilangnya pengotor seperti yang terlihat pada gambar morfologi batuan silika hasil SEM-EDX. Kata Kunci :Silika, Leaching, Kemurnian , XRF, SEM-EDXABSTRACTSilica is one of the abundant natural materials in Indonesia. In nature, silica is difficult to find with high purity, so it is necessary to do research on silica purification. The method of acid leaching is one method to improve the purity of silica. This study aims to improve the purity of silica and see the ability of acid solution (HCl) as a leaching agent in the silica purification process. Purification process using hydrochloric acid with concentration variation of 3.7%, 7.4% 11.1%, ...

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    Authors: Center for International Forestry Research;
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  • Authors: Rangkuti, Wilda Sari;

    Penelitian ini bertujuan untuk mengetahui kondisi optimum dari dosis inokulum dan lama waktu fermentasi terhadap volume bioetanol yang dihasilkan dari ampas tebu. Ampas tebu atau bagasse adalah hasil samping dari pemerahan cairan tebu. Ampas tebu termasuk biomassa yang mengandung lignoselulosa, sehingga sangat dimungkinkan untuk dimanfaatkan menjadi sumber energi alternatif seperti bioetanol. Metode penelitian ini adalah eksperimental dengan Rancangan Acak Kelompok (RAK). Ampas tebu disortasi, kemudian ampas tebu dijemur di bawah sinar matahari sampai kering (lebih kurang 3 hari) dan digiling menggunakan blender sampai menghasilkan tepung. Kemudian difermentasi dengan menambahkan sejumlah inokulum Saccharomyces cereviseaeke dalam medium fermentasi sebanyak 0%, 12%, 14% dan 16% dengan waktu fermentasi selama 24, 48, 72, 96 dan 120 jam dengan penambahan urea 0,05% dari massa yang akan difermentasi. Hasil fermentasi dimurnikan melalui proses distilasi pada suhu 75 derajat C. Hasil penelitian menunjukkan bahwa kondisi optimum dari dosis inokulum adalah 14% dan lama waktu fermentasi adalah 72 jam menghasilkan bioetanol sebanyak 1,7 ml. Dari penelitian disimpulkan bahwa lama waktu fermentasi dan dosis inokulum yang digunakan mempengaruhi volume bioetanol yang dihasilkan. ; The purpose of this research was to determine the optimal conditions of the inoculum dose and the length of time of fermentation of the volume of bioethanol produced from sugarcane bagasse. Bagasse is a by-product of milking sugar cane liquid. Sugarcane bagasse includes lignocellulosic biomass, so it is possible to be utilized as an alternative energy source such as bioethanol. This research method is experimental with Randomized Block Design (RBD). Bagasse is sorted, then bagasse is dried in the sun to dry ( 3 days) and grinded using a blender to produce flour.Then fermented by adding a number of Saccharomyces cereviseae inoculum to the fermentation medium as much 0%, 12%, 14% and 16% with fermentation time during 24, 48, 72, 96 and 120 hours with ...

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    Authors: Okta Riveranda; Muhammad Ihsan Zul; Maksum Rois Adin Saf;

    Curriculum 2013 (K-13) was first announced in 2014 which has been applied to number of schools. Preparation of this new curriculum by the government aimed at making education in Indonesia is not only focused on cognitive aspects or skills possessed, but also at students' interest and motivation. Unfortunately, behind the goal, there are issues occured in the school during the application of K-13. Those are input process and values conversion that takes relatively much time. The things are caused by the dissimilarity of the standards and the assessment scale between current curriculum with the previous one. Meanwhile, the academic system running in schools is still pretty conventional. Therefore, this research will construct an application which have capability to handle the things. Beside those additional features, this research is build an application in order to apply the data mining with k-NN algorithm to predict students learning outcomes based on certain subjects. Data source that used in this research were consisted into 500 data training that covered up all classes or labels. Testing methods which have been applied are black box testing and confusion matrix. There are 3 techniques of black box testing that applied in order to test the system functionality according to its input values. Those are equivalence class partitioning, boundary value analysis and decision table based testing. Meanwhile in confusion matrix, it has been done 3 times testing according by k value in k-NN algorithm. With k-5 acquired accurate rate 79.34%, k-10 with accurate rate 62.67%, then k-15 with accurate rate 64%. Thus, information that can conluded from those testing methods is the algorithm with k-5 is more accurate than any others.

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    Jurnal Komputer Terapan
    Article . 2016
    Data sources: DOAJ
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      Jurnal Komputer Terapan
      Article . 2016
      Data sources: DOAJ
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  • Authors: Atmaja, Ian Surya Fitra;

    Rendahnya produktivitas kedelai dan dampak perubahan iklim membutuhkan varietas toleran terhadap perubahan suhu dan berdaya hasil tinggi. Penelitian ini menggunakan rancangan kelompok lengkap teracak (RKLT) dengan perlakuan tunggal yaitu 9 genotipe kedelai dari berbagai negara. Penilitian ini bertujuan untuk melihat keragaan genotipe kedelai pada lingkungan dataran tinggi kebun Percobaan Pasir Sarongge, IPB, Cianjur (1230 meter di atas permukaan laut). Hasil penelitian menunjukkan bahwa genotipe tropis memiliki umur yang lebih dalam bila dibandingkan dengan umur genotipe subtropis. Genotipe Stressland, Fukuyutaka, Enrei, Hakubi, dan Ht-2 memiliki umur berbunga yang paling cepat yaitu 35 hari setelah tanam (HST). Genotipe tropis tersebut memiliki laju pertumbuhan yang rendah bila dibandingkan genotipe subtropis. Hasil tersebut berdasarkan peubah vegetatif yaitu tinggi tanaman, jumlah daun, dan berat kering. Laju pertumbuhan terbaik dengan keragaan tanaman terbaik terjadi pada genotipe SC-1-8. Hasil panen menunjukkan bahwa produktivitas tanaman ditentukan pertumbuhan pada fase vegetatif tanaman tersebut genotipe dengan produktivitas terbaik yaitu genotipe SC-1-8. Hasil panen genotipe subtropis lebih rendah daripada genotipe tropis disebabkan panjang hari yang lebih pendek dan karakteristik kedelai yang responsif terhadap panjang hari.

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  • Authors: AZTARINA ERMY VIJAYA;

    ABSTRAKTelah dilakukan penelitian analisis aliran fluida panas bumi di lapangan panas bumi Jaboi, Sabang. Penelitian ini bertujuan untuk mendapatkan zona aliran fluida panas bumi kaitannya dengan sesar/patahan. Penelitian ini dilakukan dengan metode titrasi dan Spektrofotometer Serapan Atom (SSA). Pengambilan sampel dilakukan di dua lokasi mata air panas, yaitu kawah I dan kawah IV. Untuk pengujian sampel dilakukan di laboratorium yang telah terstandarisasi. Pengolahan data dilakukan melalui perbandingan kandungan kimia fluida dan interpretasi diagram segitiga Ternary. Adapun diagram segitiga meliputi Cl-SO4-HCO3, Cl-Li-B dan Na-K-Mg untuk mengetahui karakteristik fluida panas bumi. Berdasarkan data yang sudah diolah dan dikorelasikan dengan data pendukung lainnya (kondisi geologi setempat, magnetik, dan temperatur) menunjukkan hubungan yang saling mempengaruhi dengan keberadaan sesar. Hasil analisis menunjukkan bahwa fluida panas bumi berada pada zona upflow ditandai dengan konsentrasi sulfat SO4 yang dominan (95% untuk sampel I dan 97% untuk sampel II). Pada diagram segitiga Na-K-Mg, fluida menunjukkan kondisi yang belum setimbang (immature water) karena fluida telah bercampur dengan air meteorik. Berdasarkan analisis data geokimia daerah penelitian ditunjukkan bahwa adanya keterkaitan dengan sesar Ceunohot yang berarah Timur Laut ke Barat Daya sebagai pengontrol aliran fluida panas bumi.Kata Kunci: Diagram Segitiga Ternary, Fluida Panas Bumi, Sesar Ceunohot, Zona FluidaABSTRACTAn analysis of the flow of geothermal fluid has been carried out in the Jaboi geothermal field, Sabang. This study aims to obtain a zone of geothermal fluid flow in relation to faults / faults. This research was conducted by the titration method and Atomic Absorption Spectrophotometer (AAS). Sampling was carried out at two hot spring locations, namely crater I and crater IV. For sample testing carried out in a standardized laboratory. Data processing is done through comparison of chemical fluid content and interpretation of Ternary ...

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    Authors: Handrata Roy Josia;

    Indonesia has been investing in expanding its power generation capacity to meet increasing needs. There is an ongoing demand for a new source of energy that is reliable, affordable, safe, and clean. This research has assessed the feasibility on implementing nuclear power plants in Indonesia using systematic literature review based on a comprehensive SWOT analysis, IFE/EFE matrix analysis, and TOWS analysis. The obtained result is that the impacts of internal and external factors are assessed as moderate-positive and positive, respectively. The research implies that strategies regarding investments, benefits, waste management, and collaborations with other alternative energy sources can significantly maximize the benefits and overcome challenges. This study contributes to the understanding of nuclear energy implementation in Indonesia and provides insights for policymakers, stakeholders, and researchers seeking to explore and promote sustainable energy solutions in an urgent need regarding increasing energy demand.

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  • Authors: Komalasari, M.; Peteru, S.; Atmadja, S.; Chan, C.;
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  • Authors: Akhiruddin, Muhammad; Lubis, Muhammad Firhan Hafani; Sihaloho, Jupriyanto;

    34 Halaman ; Temperatur yang tinggi umumnya kaan memberikan produksi bioas yang baik. Namun suhu tersebut sebaiknya tidak boleh melebihi suhu kamar. Bakteri ini hanya dapat berkembang bila suhu disekitarnya berada pada suhu kamar. Suhu yang baik untuk proses pembentukan biogas berkisar antara 20 - 40 derajat celcius dan suhu optimum antara 28-30 derajat celcius. Dengan temperatur itu, proses pembuatan biogas akan berjalan sesuai dengan waktunya. Tetapi beda bila temperatur terlalu rendah, maka waktu untuk membentuk biogas akan lebih lama.

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  • Authors: Mubarak, Duta;

    Tingginya kebutuhan nutrien bagi pertumbuhan A. platensis berakibat pada pemenuhan kebutuhan pupuk yang tinggi. Salah satu cara mengatasi hal tersebut adalah dengan pemanfaatan limbah tinggi nitrogen hasil olahan minyak kelapa sawit berupa limbah cair yang dikenal dengan nama palm oil mill effluent (POME) sebagai media pertumbuhan A. platensis. Penelitian ini bertujuan mengevaluasi konsentrasi POME yang efektif sebagai media pertumbuhan A. platensis. Inokulan A. platensis diinokulasi ke dalam 15 unit wadah berukuran 15 L dan ditambahkan POME dengan konsentrasi berbeda, yaitu 10% v/v (P10), 20% v/v (P20), dan 30% v/v (P30) dan tanpa penambahan POME sebagai kontrol (K). Kepadatan A. platensis diukur menggunakan spektrofotometer pada panjang gelombang 680 nm. Kepadatan awal yang digunakan pada awal pemeliharaan memiliki nilai absorbansi optical density (OD) berkisar 0,50–0,55. Parameter yang diukur adalah laju pertumbuhan spesifik (LPS), biomassa panen A. platensis, efisiensi penurunan chemical oxygen demand (COD) dan efisiensi penurunan biological oxygen demand (BOD). Hasil penelitian menunjukkan bahwa POME dapat digunakan sebagai media pertumbuhan A. platensis. Pada perlakuan konsentrasi POME 10% (v/v), mampu meningkatkan laju pertumbuhan spesifik sel, biomassa serta mampu memanfaatkan karbon organik untuk tumbuh dalam POME yang ditunjukan pada penurunan COD dan BOD. ; The high need for nutrients for the growth of A. platensis results in meeting the high need for fertilizer. One way to overcome this is by utilizing high- nitrogen waste resulting from processed palm oil in the form of liquid waste known as palm oil mill effluent (POME) as a growth medium for A. platensis. This study aims to evaluate the effective concentration of POME as a growth medium for A. platensis. The A. platensis inoculant was inoculated into 15 units of 15 L containers and POME was added with different concentrations, namely 10% v/v (P10), 20% v/v (P20), and 30% v/v (P30) and without the addition of POME as a control (K). The density of ...

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  • Authors: Raihan Safitri;

    ABSTRAKSilika adalah salah satu bahan alam yang melimpah di Indonesia. Di alam, silika sulit ditemukan dengan kemurnian tinggi, sehingga perlu dilakukan penelitian tentang pemurnian silika. Metode acid leaching adalah salah satu metode untuk meningkatkan kemurnian silika. Penelitian ini bertujuan untuk meningkatkan kemurnian silika dan melihat kemampuan larutan asam (HCl) sebagai agen leaching pada proses pemurnian silika. Proses pemurnian menggunakan asam klorida dengan variasi konsentrasi 3,7%, 7,4% 11,1% ,14,8% dan 18,5%. Hasil pengamatan SEM-EDX dari foto mikrograf memperlihatkan bentuk tekstur butiran-butiran tajam. Hasil Analisis XRF menunjukkan bahwa konsentrasi awal silika dalam batuan sebelum proses leaching adalah sebesar 95,21%. Setelah proses leaching menggunakan larutan HCl 11,1% terlihat bahwa kadar kemurnian silika meningkat menjadi 99,75%. Kemudian diambi lkonsentrasi larutan HCl 11,1% untukdilakukan proses leaching denganmemvariasikanwaktuleachingyaitu 4jam, 7jam, 10 jam, 13 jam dan 16 jam. Hasil yang didapatkan bahwa pada waktu leaching selama 10 jam didapatkan persentase kadar silika yaitu 99,80%. Berdasarkan hasil XRF maka didapatkan konsentrasi larutan HCl yang optimum untuk kemurnian silika yaitu 11,1% dan waktu optimum pada 10 jam. Hasil pengamatan gambar SEM-EDX menunjukkan bahwa proses leaching telah berhasil mencapai kemurnian, ditunjukkan dengan hilangnya pengotor seperti yang terlihat pada gambar morfologi batuan silika hasil SEM-EDX. Kata Kunci :Silika, Leaching, Kemurnian , XRF, SEM-EDXABSTRACTSilica is one of the abundant natural materials in Indonesia. In nature, silica is difficult to find with high purity, so it is necessary to do research on silica purification. The method of acid leaching is one method to improve the purity of silica. This study aims to improve the purity of silica and see the ability of acid solution (HCl) as a leaching agent in the silica purification process. Purification process using hydrochloric acid with concentration variation of 3.7%, 7.4% 11.1%, ...

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    Authors: Center for International Forestry Research;
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  • Authors: Rangkuti, Wilda Sari;

    Penelitian ini bertujuan untuk mengetahui kondisi optimum dari dosis inokulum dan lama waktu fermentasi terhadap volume bioetanol yang dihasilkan dari ampas tebu. Ampas tebu atau bagasse adalah hasil samping dari pemerahan cairan tebu. Ampas tebu termasuk biomassa yang mengandung lignoselulosa, sehingga sangat dimungkinkan untuk dimanfaatkan menjadi sumber energi alternatif seperti bioetanol. Metode penelitian ini adalah eksperimental dengan Rancangan Acak Kelompok (RAK). Ampas tebu disortasi, kemudian ampas tebu dijemur di bawah sinar matahari sampai kering (lebih kurang 3 hari) dan digiling menggunakan blender sampai menghasilkan tepung. Kemudian difermentasi dengan menambahkan sejumlah inokulum Saccharomyces cereviseaeke dalam medium fermentasi sebanyak 0%, 12%, 14% dan 16% dengan waktu fermentasi selama 24, 48, 72, 96 dan 120 jam dengan penambahan urea 0,05% dari massa yang akan difermentasi. Hasil fermentasi dimurnikan melalui proses distilasi pada suhu 75 derajat C. Hasil penelitian menunjukkan bahwa kondisi optimum dari dosis inokulum adalah 14% dan lama waktu fermentasi adalah 72 jam menghasilkan bioetanol sebanyak 1,7 ml. Dari penelitian disimpulkan bahwa lama waktu fermentasi dan dosis inokulum yang digunakan mempengaruhi volume bioetanol yang dihasilkan. ; The purpose of this research was to determine the optimal conditions of the inoculum dose and the length of time of fermentation of the volume of bioethanol produced from sugarcane bagasse. Bagasse is a by-product of milking sugar cane liquid. Sugarcane bagasse includes lignocellulosic biomass, so it is possible to be utilized as an alternative energy source such as bioethanol. This research method is experimental with Randomized Block Design (RBD). Bagasse is sorted, then bagasse is dried in the sun to dry ( 3 days) and grinded using a blender to produce flour.Then fermented by adding a number of Saccharomyces cereviseae inoculum to the fermentation medium as much 0%, 12%, 14% and 16% with fermentation time during 24, 48, 72, 96 and 120 hours with ...

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    Authors: Okta Riveranda; Muhammad Ihsan Zul; Maksum Rois Adin Saf;

    Curriculum 2013 (K-13) was first announced in 2014 which has been applied to number of schools. Preparation of this new curriculum by the government aimed at making education in Indonesia is not only focused on cognitive aspects or skills possessed, but also at students' interest and motivation. Unfortunately, behind the goal, there are issues occured in the school during the application of K-13. Those are input process and values conversion that takes relatively much time. The things are caused by the dissimilarity of the standards and the assessment scale between current curriculum with the previous one. Meanwhile, the academic system running in schools is still pretty conventional. Therefore, this research will construct an application which have capability to handle the things. Beside those additional features, this research is build an application in order to apply the data mining with k-NN algorithm to predict students learning outcomes based on certain subjects. Data source that used in this research were consisted into 500 data training that covered up all classes or labels. Testing methods which have been applied are black box testing and confusion matrix. There are 3 techniques of black box testing that applied in order to test the system functionality according to its input values. Those are equivalence class partitioning, boundary value analysis and decision table based testing. Meanwhile in confusion matrix, it has been done 3 times testing according by k value in k-NN algorithm. With k-5 acquired accurate rate 79.34%, k-10 with accurate rate 62.67%, then k-15 with accurate rate 64%. Thus, information that can conluded from those testing methods is the algorithm with k-5 is more accurate than any others.

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    Jurnal Komputer Terapan
    Article . 2016
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  • Authors: Atmaja, Ian Surya Fitra;

    Rendahnya produktivitas kedelai dan dampak perubahan iklim membutuhkan varietas toleran terhadap perubahan suhu dan berdaya hasil tinggi. Penelitian ini menggunakan rancangan kelompok lengkap teracak (RKLT) dengan perlakuan tunggal yaitu 9 genotipe kedelai dari berbagai negara. Penilitian ini bertujuan untuk melihat keragaan genotipe kedelai pada lingkungan dataran tinggi kebun Percobaan Pasir Sarongge, IPB, Cianjur (1230 meter di atas permukaan laut). Hasil penelitian menunjukkan bahwa genotipe tropis memiliki umur yang lebih dalam bila dibandingkan dengan umur genotipe subtropis. Genotipe Stressland, Fukuyutaka, Enrei, Hakubi, dan Ht-2 memiliki umur berbunga yang paling cepat yaitu 35 hari setelah tanam (HST). Genotipe tropis tersebut memiliki laju pertumbuhan yang rendah bila dibandingkan genotipe subtropis. Hasil tersebut berdasarkan peubah vegetatif yaitu tinggi tanaman, jumlah daun, dan berat kering. Laju pertumbuhan terbaik dengan keragaan tanaman terbaik terjadi pada genotipe SC-1-8. Hasil panen menunjukkan bahwa produktivitas tanaman ditentukan pertumbuhan pada fase vegetatif tanaman tersebut genotipe dengan produktivitas terbaik yaitu genotipe SC-1-8. Hasil panen genotipe subtropis lebih rendah daripada genotipe tropis disebabkan panjang hari yang lebih pendek dan karakteristik kedelai yang responsif terhadap panjang hari.

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  • Authors: AZTARINA ERMY VIJAYA;

    ABSTRAKTelah dilakukan penelitian analisis aliran fluida panas bumi di lapangan panas bumi Jaboi, Sabang. Penelitian ini bertujuan untuk mendapatkan zona aliran fluida panas bumi kaitannya dengan sesar/patahan. Penelitian ini dilakukan dengan metode titrasi dan Spektrofotometer Serapan Atom (SSA). Pengambilan sampel dilakukan di dua lokasi mata air panas, yaitu kawah I dan kawah IV. Untuk pengujian sampel dilakukan di laboratorium yang telah terstandarisasi. Pengolahan data dilakukan melalui perbandingan kandungan kimia fluida dan interpretasi diagram segitiga Ternary. Adapun diagram segitiga meliputi Cl-SO4-HCO3, Cl-Li-B dan Na-K-Mg untuk mengetahui karakteristik fluida panas bumi. Berdasarkan data yang sudah diolah dan dikorelasikan dengan data pendukung lainnya (kondisi geologi setempat, magnetik, dan temperatur) menunjukkan hubungan yang saling mempengaruhi dengan keberadaan sesar. Hasil analisis menunjukkan bahwa fluida panas bumi berada pada zona upflow ditandai dengan konsentrasi sulfat SO4 yang dominan (95% untuk sampel I dan 97% untuk sampel II). Pada diagram segitiga Na-K-Mg, fluida menunjukkan kondisi yang belum setimbang (immature water) karena fluida telah bercampur dengan air meteorik. Berdasarkan analisis data geokimia daerah penelitian ditunjukkan bahwa adanya keterkaitan dengan sesar Ceunohot yang berarah Timur Laut ke Barat Daya sebagai pengontrol aliran fluida panas bumi.Kata Kunci: Diagram Segitiga Ternary, Fluida Panas Bumi, Sesar Ceunohot, Zona FluidaABSTRACTAn analysis of the flow of geothermal fluid has been carried out in the Jaboi geothermal field, Sabang. This study aims to obtain a zone of geothermal fluid flow in relation to faults / faults. This research was conducted by the titration method and Atomic Absorption Spectrophotometer (AAS). Sampling was carried out at two hot spring locations, namely crater I and crater IV. For sample testing carried out in a standardized laboratory. Data processing is done through comparison of chemical fluid content and interpretation of Ternary ...

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    Authors: Handrata Roy Josia;

    Indonesia has been investing in expanding its power generation capacity to meet increasing needs. There is an ongoing demand for a new source of energy that is reliable, affordable, safe, and clean. This research has assessed the feasibility on implementing nuclear power plants in Indonesia using systematic literature review based on a comprehensive SWOT analysis, IFE/EFE matrix analysis, and TOWS analysis. The obtained result is that the impacts of internal and external factors are assessed as moderate-positive and positive, respectively. The research implies that strategies regarding investments, benefits, waste management, and collaborations with other alternative energy sources can significantly maximize the benefits and overcome challenges. This study contributes to the understanding of nuclear energy implementation in Indonesia and provides insights for policymakers, stakeholders, and researchers seeking to explore and promote sustainable energy solutions in an urgent need regarding increasing energy demand.

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