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All Journal Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences Jurnal Filsafat JURNAL BIOLOGI INDONESIA Halu Oleo Law Review Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia Jurnal Energi dan Lingkungan (Enerlink) Jurnal Ilmiah Administrasi Bisnis dan Inovasi Jurnal Masyarakat dan Budaya IIJSE JIM Sendratasik

Herman Hidayat, Herman

Unknown Affiliation

Author-ID : 638554

Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemistry Economics, Econometrics & Finance Education Energy Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Social Sciences Other

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NATIONAL PARK MANAGEMENT IN LOCAL AUTONOMY: FROM THE VIEPOINT OF POLITICAL CONSERVATION IN BIOLOGY: A CASE STUDY OF TANJUNG PUTING- CENTRAL KALIMANTAN Hidayat, Herman
JURNAL BIOLOGI INDONESIA Vol 5, No 2 (2008): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v5i2.3194

ABSTRAKPengelolaan Taman Nasional dalam Era Otonomi Daerah Dilihat dari Perspektif PolitikKonservasi Biology: Studi Kasus Tanjung Puting -Kalimantan Tengah. Paper ini menganalisispengelolaan taman nasional dilihat dari perspektif politik ekologi yang menekankan atas perandan persepsi ?stakeholders?. Peran taman nasional adalah sangat penting sebagaibenteng terakhir dalam menjaga keberadaan hutan alam. Tetapi, kondisi riil Taman NasionalTanjung Puting sekarang ini menghadapi suatu ancaman, karena dua faktor penting yakniadanya praktek aktivitas illegal logging dan penggalian untuk usaha tambang, yang dilakukanoleh para pedagang kayu dan investor lokal dari luar dengan menyuruh masyarakat lokal untukmemotong pohon dan menggali tanah. Dengan demikian, untuk mengantisipasi masalah yangkritis tersebut, diperlukan aksi afirmatif seperti pengelolaan kolaborasi dengan berbagaistakeholders (pemerintah daerah baik propinsi dan kabupaten, LSM, masyarakat lokal) atasprogram reboisasi berbagai pohon, penegakkan hukum, sanksi yang keras, dan pemberdayaanekonomi dan sosial bagi masyarakat lokal. Terjadi juga konflik kepentingan antara pemerintahpusat dan daerah dalam pengelolaan sumber daya hutan, khususnya taman nasional.Pemerintah pusat berpendapat, berdasarkan UU No.5/1990, pasal 14, yang menekankan ?tamannasional sebagai sarana preservasi hutan alam yang memilki kehidupan ekosistem yang unikdan dikelola berdasarkan sistem zonasi (inti, rimba dan riset). Kewenangan pengelolaan tamannasional tersebut diberikan kepada pemerintah pusat, karena misi utamanya ialah ialah untukmenjaga keanekaragaman hayati, memproteksi dan mengembangkannya. Sebaliknya pemerintahdaerah (Propinsi dan Kabupaten) berpendapat, bahwa keberadaan taman nasional di daerahnya,dapat digunakan sebagai income PAD (Pendapatan Asli Daerah), untuk membanguninfrastruktur daerah dan meningkatkan kesejahteraan masyarakat, khususnya dalam masa Otda.Sejalan dengan misi pemerintah daerah, masyarakat lokal juga melihat ?taman nasional? darikeuntungan nilai ekonomi langsung, sehingga sering terjadi praktek aktivitas illegal lggingdan tambang di kawasan taman nasional Tanjung Puting yang pada akhirnya berakibat terhadaprusaknya hutan. Dalam konteks ini, baik kepentingan konflik antara dua aktor stakeholdersyang utama baik pemerintah pusat dan daerah sangat menarik untuk dikaji.Kata kunci: Pengelolaan taman nasional, kolaborasi, stakeholders, kepentingan konflikpemerintah pusat dan daerah.

ANALISIS KEUNGGULAN LIMONIT SOROAKO SEBAGAI KATALIS PENCAIRAN BATUBARA (DIRECT LIQUEFACTION) Hidayat, Herman; Silalahi, Lambok Hlarius
Jurnal Energi dan Lingkungan (Enerlink) Vol 3, No 1 (2007)
Publisher : Badan Pengkajian dan Penerapan Teknologi

An investigation of catalytic activities of Soroako limonite ore using 1liter autoclavewas carried out. The comparison of the results with other iron catalysts forliquefaction of Banko coal was also performed to find out the best catalyst forBanko coal liquefaction. Much efforts to improve brown coal liquefaction processefficiency has been conducted at BPPT since 1994 through the design of highlyactive catalysts along with design of good hydrogen donor solvents. Someprevious studies have shown that limonite ore has several superior characteristicscompared to pyrite (FeS2) when used as catalyst in coal liquefaction process. Onemain reason is that limonite ore contains both iron and nickel compound asFeOOH, FeNi2OOH, FeCr2OOH that found to be responsible of high distillate.The use of natural ore for catalyst will implies that the production of industrialcatalyst for coal liquefaction could be obtained with low production cost. Theresults suggest that catalytic activity of Soroako limonite could be achieved at lowtemperature around 300 oC or less changing its crystallite form to pyrrhotite (Fe1-xS) species. Such phenomenon is similar to that of highly active Yandi Yellowcatalyst. Moreover, Soroako limonite catalyst also gives higher oil yield withsmaller amount of hydrogen consumption compare to pyrite and Yandi yellowcatalysts. So it concludes that Soroako limonite has high catalytic activity, and itssoft physical nature makes it possible to be pulverized into sub-micron particlesize easily and economically. Soroako limonite, therefore, can be recommendedas one of the most suitable catalysts for commercial coal liquefaction plant to beconstructed in the future.Kata kunci: coal liquefaction, soroako limonite, ?-FeOOH, pyrrhotite, limonitecatalyst

PENGARUH PENAMBAHAN SULFUR PADA PROSES PENCAIRAN BATUBARA BANKO Hidayat, Herman; Adiarso, Adiarso
Jurnal Energi dan Lingkungan (Enerlink) Vol 2, No 2 (2006)
Publisher : Badan Pengkajian dan Penerapan Teknologi

The effect of adding sulfur in Central Banko coal liquefaction is examined usingautoclave reactor with limonite catalyst from Soroako, at 450oC, H2 initialpressure = 9 Mpa, holding time = 60 minutes, and S/Fe ratio varies from 1, 2, 3dan 6. It is found that there is significant increase in distillates yield by 53,81% forthe increase of S/Fe ratio from 1 to 2, and at the same time CLB decreases from53,5% to 29,47%. This is because the amount of pyrrhotite for S/Fe ratio =2 ishigh and enough to promote cracking to convert coal to distillates or oil. For S/Feratio = 3, the increase of distillates or oil yield is not significant, so does for S/Fe= 6. This concludes that adding more sulfur in Central Banko coal liquefactionusing limonite catalyst from Soroako is not effective and therefore does notinfluence much to the oil yield. This is because the particle size and amount ofpyrrhotite already achieves equilibrium for S/Fe ratio = 2. The changing of S/Feratio does not give much effect to the yields of H2O, CO+CO2, C1~C4,andhydrogen consumption as well..Kata Kunci : limonit Soroako, rasio S/Fe,yield distilat, yield CLB, pirhotit, yieldH2O, yield CO+CO2, yield C1~C4, konsumsi gas hidrogen

RISET REAKTIFITAS LIMONIT SOROAKO SEBAGAI KATALIS PADA PENCAIRAN BATUBARA DENGAN GAS FLOW TYPE REACTOR Hidayat, Herman; Silalahi, Lambok Hlarius
Jurnal Energi dan Lingkungan (Enerlink) Vol 2, No 2 (2006)
Publisher : Badan Pengkajian dan Penerapan Teknologi

B r o w n Coal Liquefaction (BCL) process had been developed through theconstruction and the operation of 50 T/D pilot plant Ill Australia (1985-1990) byKOBE STEEL Group. After the successful completion of the Pilot Plant Project,newly Improved BCL process has been developed1). The feasibility study onthe commercialization of coal liquefaction plant in Indonesia has also beencarried out under the cooperation with BPPT supported by NEDO Limonitore (?-FeOOH) can be used as an industrial catalyst for direct coal liquefactionwith its high activity and low production cost. In this paper, the catalytic activitiesof Indonesian limonit ore, Soroako Limonit were examined using a gas flow typeautoclave comparing with the other iron catalysts for the liquefaction ofIndonesian brows coal. It appeared that the Soroako limonit has a highcatalystic activity while finely pulverizing to sub-micron particle size can bedone economically. It can be concluded that Soroako limonit is one of mostsuitable catalysts for the coal liquefaction plant constricted in Indonesia in thefut-ure.Kata kunci: direct liquefaction, soroako limonit, iron catalyst, phyrrotite, bankocoal

PEMANFAATAN RESIDU KILANG MINYAK PLAJU SEBAGAI PELARUT PADA PROSES PENCAIRAN BATUBARA (CO-PROCESSING) Rasyid, Muhamad Hanif; Hidayat, Herman
Jurnal Energi dan Lingkungan (Enerlink) Vol 4, No 2 (2008)
Publisher : Badan Pengkajian dan Penerapan Teknologi

This study presents the investigation on the reactivity of vacuum oil residue(VOR) as solvent in Banko coal liquefaction, so called ?Co-processing?. Processsolvent derived from BSU tests is used as reference solvent in this study. Theliquefaction tests are carried out using a gas-flow type autoclave (5L) with 200gcoal (daf), 400g of coal-derived solvent (b.p.300-420 oC), 1.0-3.0 wt% daf as Feof catalyst and elemental sulfur (S/Fe atomic ratio of 2.0) at 14.7MPa, 450oC for60min under a constant gas flow of H2-0.5%H2S. The study suggests that VORas solvent is much more reactive than process solvent under the same condition.Therefore the co-processing gives higher oil yield than coal liquefaction usingprocess solvent derived from BSU tests. It also produces lower CLB, CO+CO2and hydrocarbons yields. This indicates that there is a synergism effect betweenthe VOR as a donor solvent and the coal. The molecular structure of VOR at thefirst time was decomposed into molecular fragments. These fragments were thenattached onto the coal?s structure and lead to decompose the structure of thecoal. It was also found that co-processing consumed less hydrogen gas thanreference liquefaction process. In short, this finding obtained in this study cangive promising sight for implementing the coal liquefaction plant in Indonesia at acommercial scale.Kata kunci: vacuum oil residue, Banko, liquefaction, co-processing reactive,synergism effect

KOMPARASI REAKTIFITAS PELARUT DARI MINYAK BAKAR DAN RESIDU RANTAI PANJANG PADA PENCAIRAN BATUBARA BANKO Hidayat, Herman; Nataadmadja, Nasikin
Jurnal Energi dan Lingkungan (Enerlink) Vol 3, No 2 (2007)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/elk.v3i2.1548

The needs of fuel, especially for automotive fuel, in Indonesia keeps onincreasing, while petroleum reserves is getting lessen everyday. One alternativeto achieve the diversified energy strategy for the transportation sector is theutilization of the Indonesian low rank coal reserves through the implementation ofcoal liquefaction technology. Coal liquefaction process that has been done beforewas found economically and technically less effective. Those are the reasons fordoing coal liquefaction research using petroleum residue as the solvent, namelyco-processing, which expected to give a better performance than the standardcoal liquefaction. The feedstocks are lignite coal from Central Banko, petroleumresidue (fuel oil and long residue), limonite catalyst from Soroako and hydrogengas. The reactions were carried out in a stirred batch autoclave reactor at 120Kg/cm2 of initial hydrogen pressure and 450oC for 1 hour, at 2 of S/Fe atomicratio and 2 of solvent/coal weight ratio. The liquid products were fractionated byvacuum distillation and the gaseous products were analyzed by gaschromatography. It showed that co-processing with long residue as the solvent isbetter than fuel oil or standard coal liquefaction, with 39.17 wt% daff of oil yiled.The cetane index of middle oil fraction was 27.8 and the efficiency of hydrogenconsumption was 23.68 (oil yield/hydrogen consumption).Kata kunci: pencairan batubara, co-processing, residu minyak bumi, batubaralignit

Konsep Pemulihan Keadaan dalam Tindak Pidana Berdasarkan Konsep Restorative Justice Fariadi, Tri Taruna; Harmiko, Toto; Arifin, Chairul; Hidayat, Herman
Halu Oleo Law Review Vol 6, No 1 (2022): Halu Oleo Law Review: Volume 6 Issue 1
Publisher : Halu Oleo University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33561/holrev.v6i1.24558

Penyelesaian suatu sengketa atau perselisihan dapat diselesaikan melalui dua cara yaitu melalui jalur litigasi dan/atau non litigasi. Dalam kenyataannya, apabila terjadi suatu permasalahan khususnya yang berkaitan dengan hukum pidana (perkara pidana), model penyelesaian masalah selalu dilakukan dengan menggunakan jalur litigasi. Dalam perkembangan terkini muncul sebuah konsep baru yakni konsep restorative justice. Konsep atau pendekatan restorative justice dinilai dapat mengatasi berbagai permasalahan dalam sistem peradilan pidana tradisional sebagaimana disebutkan di atas. Penelitian bertujuan untuk membahas mengenai penerapan restorative justice dalam sistem peradilan pidana terpadu di Indonesia. Penelitian ini merupakan penelitian hukum normatif yang bersifat deskriptif analitis. Metode Pendekatan yang digunakan adalah pendekatan perundang-undangan, pendekatan konseptual dan pendekatan asas-asas hukum. Hasil dari penelitian ini bahwasanya Mahkamah Agung (MA) merupakan puncak sehingga apabila Mahkamah Agung (MA) mengadopsi atau menganut dan menerapkan konsep restorative justice maka peradilan yang ada di bawahnya pun akan mengadopsi, menganut dan menerapkan konsep restorative justice. Dengan cara ini, diharapkan konsep restorative justice dapat diterapkan dalam seluruh sistem peradilan di Indonesia dari mulai Pengadilan Negeri-Pengadilan Tinggi dan Mahkamah Agung itu sendiri.

Studi Pengaruh Pelayanan dan Harga terhadap Pembelian ShopeeFood di SMA Unggulan Amanatul Ummah: Studi di SMA Unggulan Amanatul Ummah Hidayat, Herman; Augustinah, Fedianty; Listyawati, Liling
Jurnal Ilmiah Administrasi Bisnis dan Inovasi Vol 8 No 1 (2024)
Publisher : FAKULTAS ILMU ADMINISTRASI UNIVERSITAS DR SOETOMO SURABAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25139/jiabi.v8i1.8470

This study aims to examine the effect of service quality and price on purchase decisions in the ShopeeFood service, both partially and simultaneously. This research uses a survey method involving 100 students from SMA Unggulan Amanatul Ummah Surabaya as respondents. The data analysis technique used is multiple linear regression analysis. This technique utilizes incidental sampling, and the data is further analyzed using instrument tests, classical assumption tests, multiple linear regression tests, and hypothesis tests. The results show that partially, service quality has a significant negative effect on purchase decisions, while price has a significant positive effect. Simultaneously, these two variables significantly affect purchase decisions, with an Adjusted R Square value of 0.846, meaning 84.6% of the variation in purchase decisions can be explained by service quality and price. Based on these results, it is recommended that ShopeeFood continues to improve its service quality and establish competitive pricing strategies to attract more consumers.

PENGEMBANGAN POWERPOINT PRESENTATION BERBASIS MULTIPEL REPRESENTASI KIMIA TERINTEGRASI AYAT AL-QURAN PADA MATERI BENTUK MOLEKUL DI KELAS XI SMAN 2 BATUSANGKAR Rezki, Rezki; Herman, Mimi; Rahmi, Elvy; Hidayat, Herman
Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia Vol 7, No 3 (2024)
Publisher : Universitas Islam Kalimantan MAB Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/dl.v7i3.16886

Integrasi nilai-nilai spiritual ke dalam pembelajaran kimia merupakan upaya strategis untuk meningkatkan pemahaman konsep sekaligus membangun karakter peserta didik. Salah satu pendekatan yang dapat dilakukan adalah pengembangan media pembelajaran berbasis multipel representasi kimia dengan memadukan ayat-ayat al-Qur'an. Penelitian ini bertujuan mengembangkan media PowerPoint Presentation berbasis multipel representasi kimia yang terintegrasi ayat al-Qur'an pada materi bentuk molekul yang valid dan praktis. Uji Validitas meliputi tiga aspek: validitas materi (kimia dan integrasi ayat al-Qur'an), bahasa, serta media. Metode penelitian menggunakan model pengembangan R&D dengan tahapan 4D hingga tahap development. Hasil validasi menunjukkan media sangat valid dengan skor kelayakan materi 91,67% (kimia) dan 100% (ayat al-Qur'an), bahasa 90,9%, serta media 94,31%. Praktikalitas peserta didik menunjukkan skor 84,98% (sangat praktis), sementara wawancara dengan pendidik menyatakan media ini sangat praktis. Berdasarkan hal tersebut, dapat disimpulkan media PowerPoint yang dikembangkan sangat prakis dan sangat valid serta dapat membantu memahami konsep kimia dan membangun karakter peserta didik.

The Effect of Work Motivation and Job Satisfaction on Employee Performance Through Employee Engagement as an Intervening Variable Nurlinda, RA.; Hidayat, Herman
Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE) Vol 7 No 3 (2024): Sharia Economics
Publisher : Sharia Economics Department Universitas KH. Abdul Chalim, Mojokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31538/iijse.v7i3.5844

The purpose of this study was to determine the direct effect of Work Motivation and job satisfaction on Employee engagement, to determine the direct effect of Work Motivation, job satisfaction, and Employee engagement on Employee Performance. As well as the indirect effect of Work Motivation and job satisfaction on Employee Performance through Employee engagement. Data collection was carried out using a questionnaire distributed online using Google from through social media such as WhatsApp. The sample in this study were all permanent employees of the telecommunications company PT RIZKI PRIMA SAKTI totaling 170 people. This study used Smart Pls to analyze the data. From the data analysis, it was found that Work Motivation did not affect Employee engagement, Job satisfaction had a positive effect on Employee engagement. Furthermore, Work Motivation did not affect Employee Performance, but Job satisfaction and Employee engagement had a positive effect on employee performance. Work Motivation did not affect Employee Performance through Employee engagement, but job satisfaction affected Employee Performance through Employee engagement. Based on the research results, companies need to pay attention to Work Motivation by providing full support to employees so that they get job satisfaction so that employees will feel engaged in working and ultimately employees will give their best performance for the company.

Co-Authors Adiarso, Adiarso Adiarso, Adiarso Agung Sih Kurnianto Arifin, Chairul Augustinah, fedianty Elvy Rahmi Fariadi, Tri Taruna Harmiko, Toto Herman, Mimi Listyawati, Liling Nataadmadja, Nasikin Nataadmadja, Nasikin Nurlinda, RA. Parmawati, Rita Pertiwi, Maya Rasyid, Muhamad Hanif Rasyid, Muhamad Hanif REZKI, REZKI Riarmanto, Arief Kurnia Rokani, Lutvita Erya Silalahi, Lambok Hlarius Silalahi, Lambok Hlarius Yakub, Arham

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