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All Journal Jurnal INKOM Jurnal Penelitian Pendidikan Matematika dan Sains Jurnal technoscientia Eksergi: Chemical Engineering Journal Techno LPPM Proceeding SENDI_U MESIN Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) JLBG (Jurnal Lingkungan dan Bencana Geologi) (Journal of Environment and Geological Hazards) Infotronik : Jurnal Teknologi Informasi dan Elektronika JPPS (Jurnal Penelitian Pendidikan Sains) Jurnal Abdi: Media Pengabdian Kepada Masyarakat JURNAL TEKNOLOGI TECHNOSCIENTIA Jurnal Pendidikan dan Teknologi Indonesia Humantech : Jurnal Ilmiah Multidisiplin Indonesia Journal of Software Engineering, Information and Communication Technology Fruitset Sains : Jurnal Pertanian Agroteknologi Automotive Experiences Makara Journal of Technology Dharma: Jurnal Pengabdian Masyarakat Fuse-teknik Elektro Jurnal Pengabdian kepada Masyarakat Jurnal Rekayasa elektrika SELAYAR: Jurnal Pengabdian Masyarakat
Bambang Sugiarto
Indonesian Institute of Sciences (LIPI)
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KETERAMPILAN METAKOGNITIF MAHASISWA DALAM MENERAPKAN TEORI VSEPR PADA PENYELESAIAN MASALAH BENTUK MOLEKUL DAN SUDUT IKATAN SUGIARTO, BAMBANG; , PRABOWO; , SUYONO
Jurnal Penelitian Pendidikan Matematika dan Sains Vol 19, No 1 (2012): Vol. 19, No. 1, Juni 2012
Publisher : Jurnal Penelitian Pendidikan Matematika dan Sains

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Abstract

Abstrak. Tujuan penelitian ini adalah untuk mengetahui keterampilan metakognitif mahasiswa dalam menerapkan Teori VSEPR (valence shell electron pair repulsion) pada penyelesaian masalah bentuk molekul dan sudut ikatan berdasarkan dimensi planning, monitoring, dan  reflection. Sebagai subyek adalah mahasiswa yang memprogram mata kuliah ikatan kimia dengan instrumen utama adalah peneliti sendiri (human instrument) yang didukung alat bantu audio recorder, handycam, dan buku catatan lapangan. Untuk mengetahui keterampilan metakognitif digunakan teknik analisis dokumen mahasiswa berupa jawaban tertulis dan wawancara mendalam. Uji kredibilitas terhadap data dilakukan dengan menggunakan teknik triangulasi metode dan sumber.  Temuan penelitian menunjukkan, bahwa keterampilan metakognitif pada dimensi  1) planning, tidak hanya dilakukan pada tahap analisis masalah dan rencana saja, tetapi juga dilakukan pada tahap penyelesaian masalah. Aktivitas pada tahap penyelesaian masalah ini hanya dilakukan oleh kelompok atas berupa menetapkan hasil antara yang dapat dicapai, 2) monitoring, dilakukan oleh kelompok atas, tengah, dan bawah pada tahap penyelesaian masalah. dan 3) reflection dilakukan oleh kelompok atas dan tengah pada tahap penilaian, sedang kelompok bawah tidak melakukan refleksi. Pada setiap tahap penyelesaian masalah, keterampilan metakognitif yang dilakukan oleh subyek kelompok atas lebih mendasar, lebih cermat, dan lebih teliti.                                               Kata kunci: Keterampilan Metakognitif, Penyelesaian Masalah, Teori VSEPR Abstract. The purpose of this study was to determine the students’ metacognitive skills in problem solving by using VSEPR (Valence Shell Electron Pair Repulsion) Theory based on planning, monitoring, and reflection dimensions. The subjects were students who followed the course of chemical bonds with the main instrument was the researchers (as human instrument). with supported by audio recorders, camcorders, and field notebooks. To check the validity of the data, this research used triangulation of method and sources. The results showed that in dimension 1) planning, not only performed at the phase of problem analysis and plan, but also performed on the phase of problem solving. Activity at problem solving phase is only done by the upper group in the form of the temporary result that can be achieved, 2) monitoring, performed by upper, middle, and lower groups in the problem-solving phase. and 3) reflection, performed by the upper and middle groups in the assessment phase. At each phase of problem solving,  metacognitive skills  that performed by upper group subjects more basicaly, more accurately, and more thoroughly. Key words: Metacognitive Skills, Problem Solving, VSEPR Theory   
EFEK KOMPOSISI BIODIESEL TERHADAP PARAMETER KUALITAS BAHAN BAKAR DAN UNJUK KERJA MESIN (PERBANDINGAN BIODIESEL SAWIT DENGAN BIODIESEL JARAK CASTOR) Fajar, Rizqon; Suryantoro, Taufik; Sugiarto, Bambang; Setiawan, Frans
MESIN Vol 8, No 1 (2006)
Publisher : Program Studi Teknik Mesin, Universitas Trisakti

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Abstract

Biodiesel is the mono alkyl esters oflong chain fatty acids derivedfrom renewable lipid sources.Biodiesel as asubstitute ofpetroleum dieselfuel has some advantages: itproduces cleaner exhaust gas, betterin lubrication, and doesnt need engine modification. This paper presents the results ofresearch concerningthe effect ofdifferentfatty acid composition ofbiodiesel onfuel quality and its performance in diesel engine.For this purpose three different fuel sample were tested, Indonesian diesel fuel (solar) as a reference,blending solar 70%- oil palm methyl ester 30%(B-3 sawit) and blending ofsolar 70%- castor methylester 30 %(B-30 castor) . All ofthese fuels are tested using Hydra diesel engine, single cylinder indirectinjection (IDI). The test results shows that the performance (peak pressure in the cylinder) ofthreefuels arequite similar, however the two biodiesel blends show lower emission in smoke, hydrocarbon, and CO atdifferent injection timings and different loads. For NOx emission, it is slightly higher. B-30 castor containsmore unsaturatedfatty acids than B-30 sawit and therefore produced higher emission bfNOx. Beside, castormethyl ester contains an extra hydroxyl group in ricinoleic acid that probably leads to lower smoke andhydrocarbon compared to B-30 sawit. It is still aquestion that CO emission ofB-30 castor higher than ofB-30sawit. Research in the effect of chemistry andfatty acid composistionof biodiesel on the emission areneeded to be able describe mechanism ofCO, hydrocarbon andNOxformationfrom biodiesel.
Identifikasi Objek Bawah Permukaan Menggunakan Metode Ground Penetrating Radar di Kompleks Candi Kedaton, Muarojambi, Indonesia Sugiarto, Bambang; Lucki Junursyah, G.M; Pratomo, Indyo
Jurnal Geologi dan Sumberdaya Mineral Vol 19, No 4 (2018): Jurnal Geologi dan Sumberdaya Mineral
Publisher : Pusat Survei Geologi

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Abstract

Ground Penetrating Radar (GPR) survey using 200 MHz frequency antenna have been conducted in July 2011 at Kedaton Temple Complex, Muarojambi, Jambi, Indonesia. The survey is aimed at providing subsurface information without digging (excavation) as in usual  conventional archaeological methods. The data were collected on six lines around the main building and a courtyard inside the boundary fence of Kedaton Temple Complex. Good quality data were obtained with signal to noise ratio greater than 110 dB. The result of the subsurface model based on the electromagnetic properties of rocks generating three layers of soil, from the youngest are Layer A with a thickness of 0.26 meters to 0.78 meters, Layer B with a thickness up to 1.51 meters, and Layer C coveringthe indication of archaeological object with a thickness of 0.35 meters up to 3.87 meters. The southern part of the main building showsa delineation and spread of thick layers of soil with a total thickness up to 4.50 meters, while the northern part of ancillary buildings shows a delineation and thin layers of soil with a total thickness only 2.60 meters. The indication of archaeological objects in the sub-surface indicated by the presence of anomalous heights which has a depth varying from 1.65 meters to 4.50 meters. This is interpreted to be a sub-surface anomaly that is likely to be archaeological objects still buried. The archaeological object may represent an ancient building in the zone of depression that accumulates due to the great floods, tidal Batanghari River, and sea level fluctuation in the past.Keywords: Archaeology, geophysics, Ground Penetrating Radar (GPR), Kedaton, Muarojambi.
PERANCANGAN DAN REALISASI PURWARUPA SISTEM MONITORING AREA PARKIR MOBIL DENGAN MENGGUNAKAN ULTRASONIK DAN LIGHT DEPENDENT RESISTOR Sarief, Ivany; Merdeka Putri, Wulandari Pancadasa; Sugiarto, Bambang
Jurnal Teknologi Informasi dan Elektronika (INFOTRONIK) Vol 3, No 1 (2018): Vol 3 No 1 Tahun 2018
Publisher : Universitas Sangga Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (642.552 KB) | DOI: 10.32897/infotronik.2018.3.1.86

Abstract

Kebanyakan fasilitas parkir yang digunakan saat ini tidak memberikan informasi yang menandakan bahwa slot parkir yang tersedia sudah penuh. Hal ini membuat pengguna jasa parkir terutama pengendara kendaraan roda 4 (mobil) membutuhkan waktu lebih dari 10 menit untuk menemukan tempat parkir yang tersedia. Berdasarkan hal tersebut, dirancang sebuah purwarupa sistem untuk mempermudah pengendara mobil yang hendak menggunakan jasa parkir dengan cara membuka dan menutup palang pintu parkir secara otomatis, serta memberikan informasi slot parkir yang masih tersedia. Pada sistem ini, proses pengambilan data dilakukan oleh mikrokontroler yang bertindak sebagai komponen kendali utama. Pengujian dilakukan melalui sebuah purwarupa miniatur perparkiran. Purwarupa menggunakan sensor ultrasonik untuk mengaktifkan palang pintu, motor servo sebagai penggerak palang pintu masuk dan palang pintu keluar, dan sensor Light Dependent Resistor (LDR) mendeteksi keberadaan mobil pada slot parkir. LDR ditempatkan dilantai pada setiap bidang slot parkir. Ketika ada benda diatas LDR maka cahaya akan tertutup sehingga LDR mendeteksi benda dan mengirim data pada mikrokontroler, yang akan mendefinisikan bahwa tempat tadi sudah diisi kendaraan dan menampilkan keluaran di Personal Computer (PC) bahwa slot parkir sudah penuh atau belum. Hasil pengujian sistem perparkiran dapat menampilkan kondisi masing-masing area parkir di PC dengan menggunakan aplikasi visual basic sebagai penampilnya. Portal masuk tidak dapat terbuka jika semua slot parkir telah terisi dan buzzer akan berbunyi sebagai tanda alarm.Kata kunci: slot parkir, mikrokontroler ,ultrasonik, LDR, buzzer
Rancang Bangun Sistem Monitoring Kualitas Udara Menggunakan Teknologi Wireless Sensor Network (WSN) Erwin, Iwan Muhammad; Sugiarto, Bambang; Sakti, Indra
INKOM Journal Vol 3, No 1-2 (2009)
Publisher : Pusat Penelitian Informatika - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (259.275 KB) | DOI: 10.14203/j.inkom.45

Abstract

Untuk mengetahui kualitas udara di suatu wilayah secara online maka perlu dibangun suatu sistem monitoring kualitas udara. Di sini akan dijelaskan suatu rancang bangun sistem monitoring kualitas udara menggunakan teknologi  Wireless Sensor Network (WSN).  Pada dasarnya suatu WSN terbentuk dari tiga komponen utama yaitu target, node sensor, dan base station. WSN merupakan jaringan nirkabel yang terdiri dari beberapa autonomous device yang di dalamnya terpasang sensor-sensor yang secara terpadu membaca kondisi fisik lingkungan. Setiap node sensor yang dipasang di berbagai tempat akan selalu mengirimkan data ke gateway. Dari gateway ini data ditransfer dan disimpan ke PC (Personal Computer). Selanjutnya data akan diproses hingga menjadi informasi yang dapat digunakan oleh user atau masyarakat umum. Sistem yang dibangun menggunakan komunikasi zigbee, terdiri atas satu buah node koordinator merangkap gateway, 4 node sensor sebagai end-device dan satu base station controller (BSC). Parameter udara yang diukur yaitu karbonmonoksida (CO), karbondiksiada (CO2), suhu dan kelembaban udara.Kata kunci: base station controler, end-device, gateway, koordinator, kualitas udara, monitoring, wireless sensor network, zigbee
EKSTRAKSI ANTOSIANIN DARI BIJI ALPUKAT SEBAGAI PEWARNA ALAMI Achmad, Zubaidi; Sugiarto, Bambang
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 12 No 2 Februari 2020
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

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Abstract

The needs for colorant is increasing, so the colorant produced by natural substances begin to be substituted for synthetic colorant as technology and knowledge develop. The substitution can reduce production cost, but the synthetic colorants have negative effects. The synthetic colorants can be dangerous to our health and environment if they are used for food colorants and textile industry. Therefore, natural substances such as avocado seeds are still needed for coloring which is eco-friendly by applying science and technological development. This research aim to study the effect of extraction time and the ratio of solvent concentration to the concentration of anthocyanin extract and find good conditions in the anthocyanin color test process with the extraction time and the ratio of solvent concentration variable. This research has been carried out through 4 (four) stages: (i) extracting anthocyanin, (ii) separating the anthocyanin extract uses a solvent, (iii) coloring the fabric uses anthocyanin extract which is more concentrated, (iv) testing the anthocyanin colorant by washing it uses detergent. Dissolved anthocyanin concentration analysis is carried out with a UV-Visible Spectrophotometer. This method is applied for discovering the quantity of anthocyanins dissolved in the detergent solution after washing the cloth that has been colored. The research indicate that the largest anthocyanin extract is 0.10002 mL anthocyanin /mL solvent when the extraction time is 150 minutes and the ratio of solvent concentration is 1:13.
PENGARUH PENGGUNAAN PERANGKAT PEMBELAJARAN IPA TERPADU TIPE CONNECTED TERHADAP KOMPETENSI PENGETAHUAN DAN KETERAMPILAN SISWA SMP NEGERI 2 KELUMPANG TENGAH Ningsih, Ristati; Susantini, Endang; Sugiarto, Bambang
JPPS (Jurnal Penelitian Pendidikan Sains) Vol 6, No 2 (2017)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpps.v6n2.p1355-1362

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan perangkat pembelajaran IPA Terpadu tipe connected terhadap kompetensi pengetahuan dan keterampilan siswa SMP Negeri 2 Kelumpang Tengah. Rancangan yang digunakan dalam penelitian ini yaitu one-group pretest-posttest design dengan menggunakan satu kelompok subjek yaitu siswa kelas VII-B SMP Negeri 2 Kelumpang Tengah sebanyak 24 siswa. Teknik pengumpulan data menggunakan tes dan observasi. Teknik analisis data menggunakan analisis deskriptif kualitatif dan kuantitatif. Hasil analisis data penelitian menunjukkan bahwa pembelajaran menggunakan perangkat pembelajaran IPA Terpadu tipe connected berpengaruh terhadap hasil belajar siswa dalam: (1) meningkatkan kompetensi pengetahuan siswa dengan skor N-Gain berkategori tinggi; dan (2) mencapai ketuntasan indikator kompetensi keterampilan siswa yaitu dengan rata-rata kelas sebesar 89 atau berkategori sangat baik. Berdasarkan hasil penelitian ini, dapat disimpulkan bahwa penggunaan perangkat pembelajaran IPA Terpadu tipe connected dapat meningkatkan kompetensi pengetahuan dan mencapai ketuntasan indikator kompetensi keterampilan siswa SMP Negeri 2 Kelumpang Tengah.
PENGEMBANGAN LEMBAR KERJA SISWA MODEL INKUIRI TERBIMBING MATERI ELEKTROKIMIA KELAS XII SMA Tuqa, Eka Tina Nur Ula; Suyono, Suyono; Sugiarto, Bambang
JPPS (Jurnal Penelitian Pendidikan Sains) Vol 7, No 1 (2017)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpps.v7n1.p1447-1454

Abstract

This research aimed to develop valid, practical, and effective worksheet to support electrochemistry learning using guided inquiry model. Development  of  worksheet based on ADDIE model (Analyse, Design, Develop, Implement, and Evaluate). Worksheet were implemented at grade XII chemistry students using one group pretest-posttest design. Validity of worksheet was measured from relevance and consistency based on expert judgment with minimum score of 2,6. Practicality of worksheet was measured from students activity with minimun percentage of 60%. Effectivenes of worksheet was measured from its impact to increase student?s cognitive achievement significanly. Validity and practicality was analyzed using descriptive statistics, whereas effectiveness of cognitive achievement was analyzed using inferential t-test. The result of data analysis were: (1) content validiy and construct validity of worksheet developed was very valid; (2) students activity were very good; (3) cognitive achievement has increased significanly both in pilot implementation and final implementation
EKSTRAKSI ANTOSIANIN DARI BIJI ALPUKAT SEBAGAI PEWARNA ALAMI Achmad, Zubaidi; Sugiarto, Bambang
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 12 No 2 Februari 2020
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

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Abstract

The needs for colorant is increasing, so the colorant produced by natural substances begin to be substituted for synthetic colorant as technology and knowledge develop. The substitution can reduce production cost, but the synthetic colorants have negative effects. The synthetic colorants can be dangerous to our health and environment if they are used for food colorants and textile industry. Therefore, natural substances such as avocado seeds are still needed for coloring which is eco-friendly by applying science and technological development. This research aim to study the effect of extraction time and the ratio of solvent concentration to the concentration of anthocyanin extract and find good conditions in the anthocyanin color test process with the extraction time and the ratio of solvent concentration variable. This research has been carried out through 4 (four) stages: (i) extracting anthocyanin, (ii) separating the anthocyanin extract uses a solvent, (iii) coloring the fabric uses anthocyanin extract which is more concentrated, (iv) testing the anthocyanin colorant by washing it uses detergent. Dissolved anthocyanin concentration analysis is carried out with a UV-Visible Spectrophotometer. This method is applied for discovering the quantity of anthocyanins dissolved in the detergent solution after washing the cloth that has been colored. The research indicate that the largest anthocyanin extract is 0.10002 mL anthocyanin /mL solvent when the extraction time is 150 minutes and the ratio of solvent concentration is 1:13.
PENGARUH PENGGUNAAN PERANGKAT PEMBELAJARAN IPA TERPADU TIPE CONNECTED TERHADAP KOMPETENSI PENGETAHUAN DAN KETERAMPILAN SISWA SMP NEGERI 2 KELUMPANG TENGAH Ningsih, Ristati; Susantini, Endang; Sugiarto, Bambang
JPPS (Jurnal Penelitian Pendidikan Sains) Vol 6, No 2 (2017)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpps.v6n2.p1355-1362

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan perangkat pembelajaran IPA Terpadu tipe connected terhadap kompetensi pengetahuan dan keterampilan siswa SMP Negeri 2 Kelumpang Tengah. Rancangan yang digunakan dalam penelitian ini yaitu one-group pretest-posttest design dengan menggunakan satu kelompok subjek yaitu siswa kelas VII-B SMP Negeri 2 Kelumpang Tengah sebanyak 24 siswa. Teknik pengumpulan data menggunakan tes dan observasi. Teknik analisis data menggunakan analisis deskriptif kualitatif dan kuantitatif. Hasil analisis data penelitian menunjukkan bahwa pembelajaran menggunakan perangkat pembelajaran IPA Terpadu tipe connected berpengaruh terhadap hasil belajar siswa dalam: (1) meningkatkan kompetensi pengetahuan siswa dengan skor N-Gain berkategori tinggi; dan (2) mencapai ketuntasan indikator kompetensi keterampilan siswa yaitu dengan rata-rata kelas sebesar 89 atau berkategori sangat baik. Berdasarkan hasil penelitian ini, dapat disimpulkan bahwa penggunaan perangkat pembelajaran IPA Terpadu tipe connected dapat meningkatkan kompetensi pengetahuan dan mencapai ketuntasan indikator kompetensi keterampilan siswa SMP Negeri 2 Kelumpang Tengah.
Co-Authors Achmad, Zubaidi Adawiah, Lulu Robiatul Ade Kurniawan Agama, Askar Adika Ahmad Hasyim Amaria Amaria Anggarani, Riesta Ardiyani, Anita Nur Auzani, Ahmad Syihan Bagusputra, Argan Imam Bustanul Arifin Christy Atika Sari Dendi, Dede Dewanata, Rachman Pandu Dewi, Cicilia Tri Marantika Dwi Mulya, Okta ENDANG SUSANTINI Erwin, Iwan Muhammad Fatchurohman, Dedi Fatman, Yenni Frans Setiawan, Frans G.M. Lucki Junursyah, G.M. Lucki Gunawan Gunawan Gunawansyah Gunawansyah, Gunawansyah Hanifuddin, M Hapsari, Nani Sarah Hasibuan, Juana Hizkia Haviani Laluma, Riffa Hendranto, Rahadian Yogi Hendrawan, Rizqi Ainur Hermawan, Angga Dimas Heru Sigit Purwanto Ikhsan, Akhmad Fauzi Ilham Ramadhan, Muhammad Ghiffaari Indra Sakti Indyo Pratomo Iqbal, Fahmi Mohamad Irfandi, Fauzan Isnaini Nur Azizah, Isnaini Ivany Sarief, Ivany Kusuma, Heri Septya Lucki Junursyah, G.M Mariska Aulia Putri, Indah Merdeka Putri, Wulandari Pancadasa Mokhtar, Mokhtar Muchlis Muchlis Ningsih, Ristati Nugraha, Muhammad Fauzi Nur, Salsabila Nuraini Sukmana, Rini Nurfitriani, Nisa Nurholis Majid, Nurholis Nyamiati, Retno Dwi PRABOWO Praromadani, Zulimatul Safa'ah Prasetya, Angga Proklamagita, Angela Merici Herdyana Putri, Sari Rahmawati Ramadhan, Zulqy Fazrie Ramdhani, Muhamad Deris Riffa Haviani Laluma Rirung, Yustin Rizqon Fajar Rokhis, Tria Ainur Rukmana, Ade Samidi Samidi, Samidi Saputra, Krisna Arga Septian Chairulsyah, Defti Setyawan, Tri Aji Sifa Nurpadillah Sri Poedjiastoeti Sulistyowati, RR Endang Suranto Suranto SUYONO Suyono Suyono Syahrizal, Adyanto Taufik Suryantoro, Taufik Taufiqurrahman, Muhammad Faja Tiara, Dinda Raihan Tunjung Wahyu Widayati Tuqa, Eka Tina Nur Ula Ummi Kalsum Wellia Shinta Sari Wibowo, Cahyo Setyo Widayati, Tunjung Wahyu Wiharko, Teguh Wiharso, Tri Arif Wirawan, Kristuaji Andre Wulandari, Amelia Puspita Yuliana, Siska Yulianto Sulistyo Nugroho