Lab-IS/filkom-research-papers huggingface dataset:
Hardness and Microstructure of TiN Coating on Aluminum Alloy with DC Sputtering
Authors: Margono Margono, Djarot B Darmadi, Teguh Dwi Widodo, Suprapto Suprapto, Tjipto Sujitno, Muhammad Kozin
Journal: Materials Science Forum
Year: 2024
Topics: Materials Science; Engineering
Abstract: Titanium Nitride coating has attracted much interest in increasing the hardness of aluminum alloys. This study aims to investigate the effect of Ar: N gas mixture and time on increasing the hardness of aluminum alloys using DC sputtering. Preparation of TiN thin films on aluminum alloy substrates using flowing gas mixture parameters and time. First, the layer of TiN was deposited on the sample with a gas mixture of 90Ar:10N; 80Ar:20N; 70Ar:30N; and 60Ar:40N (%) for 60 minutes. Then the optimum gas mixture that produces the highest surface hardness is used in the second process with time variations of 30, 60, 90, and 120 minutes. The results showed that the highest hardness was achieved in a gas mixture of 70Ar:30N and 60 minutes. The TiN phase formed on the aluminum surface was identified by XRD, while the surface morphology was observed by SEM. Compared with untreated samples, the hardness of …
Pengaruh Kompetensi Guru Terhadap Perilaku Peserta Didik di Lingkungan Sosial: Studi Survei di SMK Negeri 65 Jakarta
Authors: Nabilah Hasna’Awaliyah, Suprapto Suprapto
Journal: Indonesian Research Journal on Education
Year: 2024
Topics: Education; Sociology
Abstract: Penelitian ini dilatar belakangi oleh banyaknya kasus kenakalan remaja yang terus menerus meningkat. Semakin buruknya sebahagian generasi bangsa dari tahun ke tahun membuktikan bahwa lingkungan sosial di Indonesia mengalami kemerosotan dalam pendidikan akhlak dan berperilaku, khususnya di lingkungan sekolah. Hal ini perlu diperhatikan dan diperbaiki, terutama oleh tenaga pengajar yang berkompeten, agar generasi bangsa kita selanjutnya memiliki perubahan lebih baik dan menjadi Sumber Daya Manusia yang berkualitas. Penelitian ini menggunakan pendekatan Kuantitatif dengan metode “deskriptif analitik korelasional”. Adapun objek penelitian ini adalah peserta didik kelas XI SMKN 65 Jakarta. Populasi dalam penelitian ini sebanyak 212 peserta didik, dan yang dijadikan sampel sebanyak 68 peserta didik, dengan teknik pengumpulan data menggunakan simple random sampling. Adapun dalam menganalisis data menggunakan product moment. Hasil penelitian ini jika dilihat dari segi uji koefisien product moment menghasilkan rxy atau ro sebesar 0,607 hal ini menunjukkan bahwa ro lebih besar dari pada rt pada taraf signifikan 10%= 0,201, dengan demikian dapat dinyatakan bahwa ro> rt maka hipotesis nihil ditolak, sedangkan hipotesis alternatif diterima, dan bentuk korelasi (ro) dalam penelitian ini adalah positif. Artinya terdapat pengaruh yang cukup signifikan antara Kompetensi Guru dengan Perilaku peserta didik kelas XI SMKN 65 Jakarta di lingkungan sosial.
Study of curcumin degradation using UV-VIS spectrophotometry and density functional theory
Authors: Suprapto Suprapto, Vicario Baroroh
Journal: AIP Conference Proceedings
Year: 2024
Topics: Chemistry; Physics
Abstract: The study of curcumin degradation has been carried out by optimizing the effect of pH and solvents using the UV-Vis spectrophotometric method. The stability of curcumin decreased as pH increased. Curcumin was degraded rapidly in alkaline solutions. Curcumin has different maximum wavelengths in the different solvents. The UV spectrum of curcumin shifted as the pH increased. The UV spectra of curcumin shifted towards a smaller wavelength in alkaline solution. The shift in the UV spectra was due to curcumin degradation in an alkaline solution. In addition, Density functional Theory (DFT) calculation was carried out to simulate the curcumin and its degradation product ground states and excited states. The absorption spectra calculated using the TDDFT method showed that the maximum wavelength of curcumin and its degradation products agreed with the experimental data.
Pengembangan Media Pembelajaran Berbasis Construct 2 Pada Materi Perencanaan Kebutuhan Tenaga Kerja Konstruksi Rumah Satu Lantai
Authors: Seto Dwi Pamungkas, Suprapto Suprapto
Journal: Jurnal Kajian Pendidikan Teknik Bangunan
Year: 2024
Topics: Education; Construction
Abstract: Hasil dari pengamatan pada saat Pengenalan Lingkungan Persekolahan yang dilakukan di SMK Negeri 3 Surabaya didapatkan bahwasanya masih terdapat kegiatan belajar mengajar yang menggunakan media pembelajaran berupa papan tulis sehingga terkesan monoton dan siswa merasa kesulitan untuk memahami materi dikarenakan media pembelajaran yang dipakai bersifat sekali simak. Berdasarkan permasalahan tersebut, penelitian ini berupaya untuk memberikan stimulus agar proses pembelajaran dapat berjalan sesuai capaian pembelajaran yang dicanangkan yaitu dengan inovasi mengembangkan sebuah media pembelajaran berbasis construct 2. Tujuan dari penelitian ini adalah untuk mengembangkan media pembelajaran berbasis construct 2, serta mengetahui peningkatan hasil belajar siswa. Metode penelitian yang digunakan adalah menggunakan model pengembangan Borg and Gall dan soal tes hasil belajar siswa. Berdasarkan hasil penelitian ditemukan yaitu menghasilkan produk berupa aplikasi bernama “Estimate Room”, dan hasil belajar peserta didik pada saat Pre-Test mendapatkan rerata kelas 65, 5, sedangkan pada saat Post-Test mendapatkan rerata kelas 87, 17.
INVESTASI YANG BERKELANJUTAN: MENGENALKAN MASYARAKAT PADA KONSEP DAN PRAKTIK INVESTASI YANG BERTANGGUNG JAWAB
Authors: Habel Taime, Tasrim Tasrim, Alfiana Alfiana, Suprapto Suprapto, Pandu Adi Cakranegara
Journal: Community Development Journal: Jurnal Pengabdian Masyarakat
Year: 2024
Topics: Finance; Social Responsibility
Abstract: Artikel ini membahas konsep dan praktik investasi yang bertanggung jawab sebagai bagian dari investasi yang berkelanjutan. Melalui metode literature review, kami menyelidiki pendekatan-pendekatan terbaru dalam investasi yang mempertimbangkan aspek lingkungan, sosial, dan tata kelola perusahaan (ESG). Kami juga menyoroti peran penting masyarakat dalam memahami dan menerapkan investasi yang bertanggung jawab. Dengan fokus pada dampak positif jangka panjang, artikel ini mengajak masyarakat untuk lebih mendalami dan mengadopsi praktik investasi yang berkelanjutan guna mencapai pembangunan yang inklusif dan berdaya tahan.
Analysis Influence Power Pull Tour Culinary Streetfood in Bandung City
Authors: Yudi Nugraha, Shierla Setyani
Journal: Momentum Matrix: International Journal of Communication, Tourism, and Social Economic Trends
Year: 2024
Topics: Tourism; Economics
Abstract: The city of Bandung is developing into a business center that has advantages in several fields, especially in the field of culinary tourism, which is part of the local identity and is growing rapidly. The purpose of this research is to see the potential of street food in Lengkong to increase the interest of culinary tourism in the city of Bandung. This research method is quantitative and phenomenological through field studies and using the internet as one of the means we use to get information about street food places in Lengkong as our analysis material. This study found that Lengkong street food culinary products can improve the economy of Bandung city traders quickly, because many food vloggers review various types of food in Lengkong so that many domestic and foreign tourists are curious about one of the street foods in the city of Bandung. Social media also plays an important role as a development or form of promotion to increase more tourists and advance local SMEs within the scope of the Lengkong area and develop interest in culinary tourism in the city of Bandung.
Nilai Religiusitas dalam Novel Layla Karya Candra Malik
Authors: Rizal Ubaidillah, Suprapto Suprapto
Journal: LEKSIS: Jurnal Pendidikan Bahasa dan Sastra Indonesia
Year: 2024
Topics: Literature; Religious Studies
Abstract: Sastra umumnya berbicara tentang masalah manusiawi dan sosial. Dengan penyajian yang khas, sastra kaya akan nilai yang terkandung di dalamnya, salah satunya adalah nilai religius. Layla karya Candra Malik adalah novel yang memiliki sejumlah nilai-nilai religius yang menarik untuk dikaji. Penelitian ini bertujuan untuk mempengaruhi prilaku dan tindakan manusia, mampu memberikan kesadaran untuk berbuat kebaikan dan pemahaman nilai keagamaan sebagai pembangun iman. Metode yang digunakan dalam penelitian ini adalah metode deskriptif kualitatif kajian pustaka. Ajaran dalam sastra religius mencakup masalah berbagai persoalan yang tidak terbatas, menyangkut persoalan hidup dan kehidupan, seluruh persoalan yang mencakup harkat dan martabat manusia. Secara garis besar persoalan hidup dan kehidupan meliputi:(a) hubungan manusia dengan Tuhannya (b) hubungan manusia dengan manusia lain,(c) persoalan hubungan manusia dengan diri sendiri.
Solid polymer electrolyte PVA/CS/NaClO4/SiO2: Optimization NaClO4 concentration
Authors: Yatim Lailun Ni’mah, Farah Aimmatur Rusydiyah, Suprapto Suprapto
Journal: AIP Conference Proceedings
Year: 2024
Topics: Materials Science; Chemistry
Abstract: Solid Polymer Electrolyte (SPE) has been made by the solution casting method. SPE consists of PVA as host polymer mixed with chitosan (CS) biopolymer, NaClO4 as salt, and SiO2 synthesized from bagasse ash as a filler to increase the ionic conductivity of the electrolyte system. Using chitosan biopolymer and SiO2 filler from bagasse ash to obtain environmentally friendly SPE, reduce waste problems, and lower production costs. The use of NaClO4 salt as a source of sodium ions and the addition of fillers is done so that the crystallinity of the polymer is reduced and high ionic conductivity is obtained. In this study, a thin SPE film was produced that was not easily torn. XRD test results showed a decreased crystallinity after the addition of NaClO4 salt and SiO2 filler. The FTIR spectra showed that NaClO4 binds to the polymer and SiO2 acts as a filler only. From the characterization results, it was concluded that the …
The Identification of Acetic Acid-Ethanol Mixture Using Gas Sensor Array and Ensemble Regression
Authors: Suprapto Suprapto, Yatim Lailun Ni'mah, Harmami Harmami, Ita Ulfin, Annisa Ardiyanti
Journal: Indonesian Journal of Chemical Analysis (IJCA)
Year: 2024
Topics: Sensor Technology; Data Analysis
Abstract: Identification of acetic acid-ethanol mixtures using a commercial gas sensor array equipped with ensemble regression has been carried out. The gas sensor analysis was simple, rapid, and fast since it did not require any sample preparation. A quantitative analysis of the acetic acid-ethanol mixture was carried out to determine the sensitivity and selectivity of the sensor in distinguishing the concentration of the acetic acid and ethanol mixture. This study focuses on the coefficient of determination of 80% of the calibration data set and recovery of 20% of the testing data set. The models showed excellent performance, specifically, the Bagging and Random Forest r 2 for the ethanol calibration data reached 0.91 and 0.94, respectively. The corresponding ethanol test recoveries were 99.95% and 97.84%, indicating the robustness of the model in accurately predicting ethanol concentration. Acetic acid test recoveries were 100.56% and 101.38% with r 2 of 0.89 and 0.93 for Bagging and Random Forest regression, respectively. Hence, the commercial gas sensor array equipped with ensemble regression can be applied to the quantification of the acetic acid–ethanol mixture and demonstrate opportunities for the practical use of this gas sensor array in analyzing real samples, ie human breath or environmental monitoring samples.
OPTIMASI FORMULA SEDIAAN TABLET LEPAS LAMBAT TEOFILIN DENGAN KOMBINASI MATRIKS ETILSELULOSA DAN GUAR GUM DENGAN METODE SIMPLEX LATTICE DESIGN
Authors: S Suprapto, Aulia Fitria Sabilla, Rafika Hanifah Jauhari
Journal: Prosiding University Research Colloquium
Year: 2024
Topics: Pharmaceutics; Chemistry
Abstract: Teofilin merupakan obat asma kronik yang memiliki waktu paruh 8, 1 jam dan indeks terapinya sempit dengan kisaran 10-20? g/mL. Sediaan lepas lambat teofilin dengan sistem matriks diharapkan mampu mempertahankan kadar obat lebih lama, mencegah terjadinya fluktuasi kadar teofilin dalam darah, dan mengurangi frekuensi penggunaan. Penelitian ini bertujuan untuk mengetahui pengaruh kombinasi matriks guar gum (GG) dan etilselulosa (EC) terhadap sifat fisik granul dan tablet, pola pelepasan zat aktif teofilin, serta memperoleh formula optimum. Optimasi formula kombinasi EC dan GG sediaan tablet teofilin dirancang dengan design-expert metode simplex lattice design (SLD) diperoleh sebagai berikut: formula 1 (100: 100) mg; formula 2 (120: 80) mg; formula 3 (90: 110) mg; formula 4 (110: 90) mg; formula 5 (80: 120) mg; formula 6 (80: 120) mg; dan formula 7 (120: 80) mg. Evaluasi granul meliputi sifat …
Response Surface Methodology Validation of Zinc, Copper, and Lead Ions Adsorption Using Bayesian Regression
Authors: Suprapto Suprapto, Yatim Lailun Ni'mah, Ayu Subandi, Nabila Yuningsih, Anggun Pertiwi
Journal: Iranian Journal of Chemistry and Chemical Engineering
Year: 2024
Topics: Environmental Science; Statistics
Abstract: The adsorption of zinc, lead, and copper ions onto silica gel adsorbent has been successfully carried out in this study. Linear regression of polynomial transformation from input variables was employed to model the correlation between estimator variables (adsorbent dose, initial concentration, contact time, and pH) and output variable (%removal). Although the R2 scores varied, overall, the models performed well in predicting metal ion removal. The regression coefficients of the models revealed that adsorbent dose and pH were the most significant factors for zinc and copper adsorption, while initial concentration and contact time also have a significant role in lead adsorption. Bayesian regression was used as a complementary approach to Response Surface Methodology (RSM), revealing different weight distributions for zinc and copper adsorption compared to RSM polynomial regression. The study concludes that …
The effect of potential and time stability on the electrochemical synthesis of gold nanoparticles
Authors: Q Fardiyah, AF Assomadi, S Suyanta, Suprapto, F Kurniawan
Journal: AIP Conference Proceedings
Year: 2024
Topics: Nanotechnology; Electrochemistry
Abstract: In the current study, gold nanoparticles (AuNPs) were prepared using an electrochemical synthesis method. The effect of electrolysis potential on the absorption value of gold nanoparticles and their stability time has been studied. The first step is to determine the maximum wavelength of synthesized AuNPs in the wavelength range of 300 to 800 nm and the maximum absorbance value was obtained. The electrolysis potential variations used in this study were 50, 53 and 55 Volts. The stability time of the synthesized gold nanoparticles was studied by observing the absorbance value on measurement days 1, 2, 3 to day 20. The results showed that the maximum wavelength of the synthesized AuNPs was 525nm with an absorbance value of 0,626 A. The maximum gold nanoparticles absorbance was obtained at the electrolysis potential of 55 Volts. The absorption of gold nanoparticles showed almost the same value …
The effect of plasma extraction voltage versus the electron beam current in the pulse electron irradiator
Authors: Agus Purwadi, Suprapto Suprapto, Ihwanul Aziz, Saefurochman Saefurochman, Isdandy Rezki Febrianto
Journal: AIP Conference Proceedings
Year: 2024
Topics: Plasma Physics; Electronics
Abstract: A study has been carried out on the effect of plasma extraction voltage versus electron beam current in a pulsed electron irradiator (PEI). The electrons on the plasma surface are emitted into the acceleration region through the emission window and then extracted through the foil window into the atmospheric region for the extraction voltage, causing a plasma arc discharge to be applied to the target. The extraction voltage Ua installed in the PEI device affects the formation process and the extraction electron emission current Ie, while the dimensions of the Plasma Generator Vessel (PGV) affect the thermal electron emission current Ie0. In this paper, we have discussed the effect of variable extraction voltages up to the order of hundreds kV on the basis of the Boltzmann equation and the method of determining the current Ie using the Rogowki coil, which is used in PEI devices. The purpose of this study is to determine …
An optimization of irradiation vessel for RVNRL using ARJUNA 1.0 electron accelerator
Authors: Suhadah Rabi’atul Adabiah, Elin Nuraini, Wiwien Andriyanti, Saefurrochman Saefurrochman, Devi Swasti Prabasiwi, Dewi Puspa Arini, Sukaryono Sukaryono, Agus Wijayanto, Agus Dwiatmaja, Karina Anggraeni, Sutadi Sutadi, Herry Poernomo, Suprapto Suprapto, Darsono Darsono
Journal: AIP Conference Proceedings
Year: 2024
Topics: Nuclear Engineering; Optimization
Abstract: A drum-type irradiation vessel has been designed and constructed to optimize the Radiation Vulcanization of Natural Rubber Latex (RVNRL) by using a 350 keV/10 mA ARJUNA 1.0 electron accelerator. The aim of this study is to develop a new type of vessel, that can produce a thin layer of NRL so that the electrons can penetrate the NRL and the vulcanization process can occur optimally. We also present the tensile strength (TS) data of RVNRL using a Stirrer-type vessel, which is only 4.5 N/mm2 of the maximum TS that we can achieve. The optimization of vessels for irradiation is needed in order to improve the crosslinking process between the electron beam and NRL. The stirrer-type vessel for the 2 mA is not suitable because of the current and the depth penetration of the electron is very low. Based on the results, the drum-type vessel can produce the NRL with the thickness of its surface less than 1 mm, so the …
Effect of nitrogen ion implantation on the fatigue of AISI 4140 steel
Authors: Tjipto Sujitno, Suprapto Suprapto, Wiwien Andriyanti, Djoko Slamet Pudjorahardjo
Journal: AIP Conference Proceedings
Year: 2024
Topics: Materials Science; Ion Implantation
Abstract: This paper presents the influence of nitrogen ion implantation on the fatigue behavior of AISI 4340. Then the nitrogen ion implantation process was carried out at 100 keV of ion energy and for various ion doses, such as at doses of 1.399× 1017 ions/cm2, 2.332× 1017 ions/cm2, 3.265× 1017 ions/cm2, and 4.198× 1017 ions/cm2. The treated specimens were characterized for their hardness using a Vickers micro hardness tester; fatigue using a rotating bending machine; and surface morphology of the cross section of fatigue fracture using an optical microscope. It’s found that the optimum hardness is 423.97 VHN, while the surface hardness for raw material is 318.67 VHN, at a stress of 57.409 kg/cm2 and a load of 28 kg, failure occurs in 128300 cycles, while for non-implanted steel, at the same stress, failure occurs at 117200 cycles. This condition was achieved at 2.332× 1017 ions/cm2 of ion dose. From the …
Preliminary study on tandem electrostatic accelerator for the ion accelerator facility at the research center for accelerator technology, ORTN BRIN
Authors: Djoko Slamet Pudjorahardjo, Imam Kambali, Tjipto Sujitno, Suprapto Suprapto, Wiwien Andriyanti, Isdandy Rezki Febrianto, Angga Dwi Saputra, Bayu Mahdi Kartika, Anjar Anggraini Harumningtyas
Journal: AIP Conference Proceedings
Year: 2024
Topics: Nuclear Physics; Accelerator Technology
Abstract: The Research Center for Accelerator Technology (PRTA) at the PUSPIPTEK Serpong is one of the research centers of the Research Organization for Nuclear Energy (ORTN), which belongs to the National Research and Innovation Agency (BRIN). The PRTA has a task and function to perform research, development, and innovation in the field of accelerator technology. Therefore, in order to implement the task and function of the research center, an accelerator facility will be developed as a core facility of the research center. Considering the characteristics of the electrostatic accelerator, among others are its ability to produce continuous beams and higher beam currents, and also the beam energy can be varied over a wide range of energies so the electrostatic accelerators are useful to industries, so a tandem electrostatic accelerator will be as a part of the accelerator facility. In addition, the tandem electrostatic …
Characterization with SEM, EDS, and XRF of Zr-4 material after sputtering with Ti target–Application for PWR type nuclear power reactor fuel cladding
Authors: Usman Sudjadi, Fajar Al Afghani, Tri Marji Atmono, Sungkono Sungkono, Maman Kartaman Ajiriyanto, Suprapto Suprapto, Agus Jamaludin, Juan Carlos Sihotang
Journal: AIP Conference Proceedings
Year: 2024
Topics: Nuclear Engineering; Materials Science
Abstract: A characterization and analysis with SEM and EDS have been carried out on Zr-4 material after sputtering with titanium target, applications for nuclear power reactor cladding, Pressurized Water Reactor (PWR) and Pressurized Heavy Water Reactor (PHWR) types. Samples Zr-4 which has a length and width of about 1 cm and a thickness of 10 mm, the surface is sputtered with Ti target with voltage variation of 4 kV and 5 kV and the time is also varied for 2, 3 and 4 hours. It was found that the longer the sputtering process on the Zr-4 material, the thicker the Ti layer. The minimum voltage must be 4 kV. The voltage in the sputtering process does not change much to the Ti coating on the sample surface. This research will be continued with a corrosion test which is applied to the cladding material for the nuclear power reactor type PWR and PHWR.
PEMBERDAYAAN KELOMPOK WANITA TANI MELALUI PROGRAM LAHAN PANGAN PEKARANGAN MANDIRI
Authors: Bayu Mahendra, Sugeng Suyatno, Suprapto Suprapto, Ari Budi Riyanto, Suwarni Suwarni
Journal: Perwira Journal of Community Development
Year: 2024
Topics: Agriculture; Community Development
Abstract: Pelaksanaan pengabdian ini dilakukan di Desa Senon Kecamatan Kemangkon Kabupaten Purbalingga. Jika dilihat berdasarkan letak geografis posisi Desa Senon sangat strategis sebab dilalui sungai Klawing dan jalan raya sehingga perekonomian mengembang pesat. Selain itu desa ini memepunyai potensi untuk dikembangkan, salah satunya dengan penanaman jumlah tanaman yang dapat digunakan sebagai tanaman pangan dan obat keluarga sebagaimana hal ini menjadi penting karena ketahanan pangan menjadi fokus pemerintah dalam hal pembangunan manusia. Metode Pelaksanaan yang dilakukan pada kegiatan pengabdian ini adalah dalam bentuk penyuluhan menggunakan alat bantu media Audio Visual kepada masyarakat di desa Senon. Hasilnya adalah masyarakat Desa Senon memperoleh pemahaman dan wawasan tentang manfaat tanaman seperti kentang, cabai, tomat, jeruk, jahe dan kunyit untuk dijadikan sebagai konsumsi keluarga dan obat keluarga serta dapat mempraktekannya di lahan masing–masing.
Program bantuan mesin pompa air bahan bakar gas terhadap peningkatan pendapatan petani padi sawah Kabupaten Purbalingga
Authors: Bayu Mahendra, Sugeng Suyatno, Suprapto Suprapto, Suwarni Suwarni
Journal: Perwira Journal of Science & Engineering
Year: 2024
Topics: Agriculture; Economics
Abstract: Pemerintah sangat mendukung perkembangan ketahanan pangan di Indonesia, bentuk dukungan itu diantaranya adalah bantuan pompa air berbahan bakar gas yang bertujuan meningkatkan efiseiensi bagi petani padi di Kabupaten Purbalingga. Penelitian ini termasuk dalam penelitian yang menganalisis kebijakan pemerintah yang bertujuan untuk sektor pertanian. Metode deskriptif kuantitatif digunakan peneliti dalam penelitian ini, sehingga dapat menggambarkan usaha tani padi yang dilakukan petani dan total pendapatan petani padi yang menggunakan pompa air berbahan bakar gas. Menghitung rata-rata pendapatan petani padi dengan pompa air berbahan bakar gas dan membandingkan dengan pendapatan petani padi dengan pompa air berbahan bakar minyak. Sampel dari penelitian ini diperoleh setelah memilah populasi yang ada yaitu dari petani padi sawah desa Kaligondang yang menerima bantuan pompa air berbahan bakar gas dan memiliki kesamaan luas lahan dan jenis padi yang sama. Diperoleh 20 sampel yang sesuai dengan kriteria yang telah ditetapkan. dari analisis deskriptif terlihat bahwa terjadi peningkatan rata-rata pendapatan sebesar Rp. 810.802 dari biaya Rp. 8.134. 333 menjadi Rp. 8.945. 135 Dapat disimpulkan bahwa penggunaan bahan bakar gas untuk pompa air dapat pendapatan petani sebesar 10%.
Pengenalan dan Pembelajaran Algoritma Pemograman Python Pada SMK Hijau Muda Karangraharja
Authors: Aswan Supriyadi Sunge, Suprapto Suprapto, Tri Ngudi Wiyanto, Sutrisno Aji Prasetyo
Journal: Jurnal Pelita Pengabdian
Year: 2024
Topics: Computer Science; Education
Abstract: Tujuan pembelajaran pemrograman adalah pemecahan masalah, berpikir logis dan sistematis. Ini membantu meningkatkan keterampilan mencari solusi dalam hal ini membantu dalam banyak aspek kehidupan, terutama membangun kreativitas dan kemandirian, berpikir kreatif dan menciptakan sesuatu yang baru. Khususnya bagi siswa jurusan yang berhubungan komputer perlu mempelajari dan mengenal bahasa pemrograman salah satu bahasa pemrograman yang saat ini sedang naik daun adalah Python, ini memang bukan yang baru namun tidak semua orang mengetahui bahasa pemrograman ini. Terutama di negara berkembang, Machine Learning semakin banyak digunakan untuk menyederhanakan masalah manusia, oleh karena itu, siswa memahami bahasa pemrograman, struktur dan fungsinya, serta lebih mungkin untuk dapat menggunakannya dalam masyarakat dan dunia kerja.
The important issue of awareness of disaster response to the COVID-19
Authors: Faridatul Lailiyah, Mutimmatul Faidah
Journal: Heliyon
Year: 2024
Topics: Public Health; Disaster Management
Abstract: This study aimed to analyze the community's disaster response awareness during the Covid-19 pandemic during the implementation of The Large-Scale Social Restrictions (LSSR) in Gresik. Self-awareness was observed using Peter L. Berger and Thomas Luck man's Social Construction Theory through a dialectical process of internalization, objectification, and externalization. The results showed that there had been no good awareness in efforts to prevent the spread of Covid-19 in Gresik. Socially, the community had not taken the dangers of Covid-19 seriously. There was also an inconsistency between knowledge and reality related to disaster response. In coping with the dialectical process, the community had not implemented a disaster-aware culture by obeying the existing regulations. At least, the sociocultural environment determined a person's construction for self-identification, interaction, and adjustment to …
Analisis Terhadap Tindakan Hukum Bagi Pelanggar Hak Royalti Musik Berdasarkan Peraturan Pemerintah Nomor 56 Tahun 2021
Authors: Dida Wahyu Kristyana, Mulyani Zulaeha, Suprapto Suprapto
Journal: Lex Positivis
Year: 2024
Topics: Law; Intellectual Property
Abstract: Hadirnya konseptualisasi mengenai Kekayaan Intelektual bagi karya-karya ciptaan seseorang, tentunya juga menghadirkan beberapa konsep lain guna menjalankan serta melindungi karya-karya tersebut. Guna menegakkan hak royalti hak cipta pemusik, Pemerintah Indonesia melalui Peraturan Pemerintah Nomor 56 Tahun 2021 tentang Pengelolaan Royalti Hak Cipta Lagu/Musik. Namun, masih terdapat berbagai masalah serta kendala dalam hal penegakannya. Tujuan dari Penelitian skripsi ini adalah untuk mengetahui bagaimana Hukum Terhadap pelanggar Hak Royalti Musik berdasarkan Peraturan Nomor 56 Tahun 2021. Metode yang digunakan adalah jenis penelitian normatif. Tipe penelitian dengan mengadakan identifikasi terhadap pengertian–pengertian pokok atau dasar dalam hukum terhadap subjek hukum, objek hukum peritiwa hukum, dan hubungan hukum. Teknik pengumpulan bahan hukum …
ADMINISTRASI KESEHATAN Teori dan Praktik
Authors: Suprapto Suprapto
Journal: LP2M Akademi Keperawatan Sandi Karsa
Year: 2024
Topics: Health Administration
Abstract: Administrasi kesehatan adalah salah satu pilar penting dalam upaya peningkatan kualitas layanan kesehatan. Dalam konteks ini, perencanaan, pengelolaan, dan pengawasan sumber daya kesehatan harus dilakukan secara optimal agar pelayanan kesehatan dapat berjalan efektif dan efisien. Buku ini diharapkan dapat memberikan panduan yang bermanfaat bagi mahasiswa, praktisi kesehatan, serta manajer fasilitas kesehatan dalam memahami konsep-konsep dasar administrasi kesehatan serta cara mengimplementasikannya dalam praktik sehari-hari. Materi yang disajikan dalam buku ini mencakup berbagai topik penting, mulai dari konsep dasar administrasi kesehatan, perencanaan strategis, manajemen sumber daya manusia di bidang kesehatan, hingga evaluasi program kesehatan. Setiap bab disusun secara sistematis agar pembaca dapat dengan mudah mengikuti perkembangan materi dari teori …
PENGARUH GAYA KEPEMIMPINAN DAN BEBAN KERJA TERHADAP TURNOVER INTENTION KARYAWAN PADA PT SRI CONVIG KONSTRUKT CIPUTAT TANGERANG SELATAN
Authors: Rionaya Putra Ahyadi, Suprapto Suprapto
Journal: Jurnal Sinergi Manajemen
Year: 2024
Topics: Human Resources; Leadership
Abstract: Penelitian ini bertujuan untuk mengetahui pengaruh gaya kepemimpinan dan beban kerja terhadap turnover intention karyawan pada PT. Sri Convig Konstrukt baik secara parsial maupun secara simultan. Metode yang digunakan adalah kuantitatif. Teknik pengambilan sampel menggunakan sampling jenuh dan diperoleh sampel dalam penelitian ini berjumlah 65 responden. Analisis data menggunakan uji validitas, uji reliabilitas, uji instrument penelitian, uji asumsi klasik, uji koefisien korelasi, uji koefisien determinasi, dan uji hipotesis. Hasil penelitian ini adalah gaya kepemimpinan berpengaruh positif dan signifikan terhadap turnover intention karyawan dengan persamaan regresi Y = 7,813 + 0,853 X1, .Uji hipotesis diperoleh nilai t hitung > t tabel atau ( 10,156 > 1,998 ). Dengan demikian H0 dan H1 diterima artinya terdapat pengaruh yang signifikan gaya kepemimpinan terhadap turnover intention karyawan. Beban kerja berpengaruh secara postif dan signifikan terhadap turnover intention karyawan dengan persamaan regresi Y = 4,262 + 0,947 X2 . Uji hipotesis diperoleh nilai t hitung > t tabel atau ( 12,364 > 1,998 ). Denga demikian H0 ditolak dan H2 diterima artinya terdapat pengaruh yang signifikan beban kerja terhadap turnover intention karyawan . Gaya kepemimpinan dan beban kerja secara simultan berpengaruh positif dan signifikan terhadap turnover intention karyawan dengan persamaan regresi Y = 0,536 + 0,457 X1 + 0,598 X2 . Uji hipotesis diperoleh nilai F hitung > tabel atau ( 441,079 > 2,75 ), yang menghasilkan nilai R Square sebesar 0,967. Hal ini menunjukan gaya kepemimpinan dan beban kerja memiliki pengaruh …
Strengthening the Profile of Pancasila Students Through Cultural Values in Folklores of Ponorogo
Authors: Suprapto Suprapto, Syamsudin Rois
Journal: QALAMUNA: Jurnal Pendidikan, Sosial, dan Agama
Year: 2024
Topics: Education; Cultural Studies
Abstract: The current era is marked by a concerning trend of moral degradation among the younger generation. This current study aims to describe and explain the cultural values embedded in Ponorogo's folklore and examine the relevance of this folklore as teaching materials for strengthening the Pancasila Student Profile. The researchers employed a qualitative research method. To collect information, the researchers used primary and secondary sources related to the folklore of Ponorogo. Data analysis followed Miles and Huberman's interactive model, which involved data reduction, display, verification, and interpretation to draw meaningful conclusions. Triangulation was used to ensure data trustworthiness. The study results revealed that the cultural values based on local wisdom/folklore embedded in Ponorogo include religious, mutual help, morals, customs, and historical values. Furthermore, the relevance between the folklore of Ponorogo and local wisdom values can be utilized as learning materials in elementary schools. As a result, it can strengthen the Pancasila student profile, enabling students to develop critical thinking, independence, intelligence, moral character, cultural awareness, and nobility from an early age.
Optimizing titanium implant performance: Electrophoretic deposition of hydroxyapatite/chitosan/hyaluronic acid coatings
Authors: EO Ningrum, H Suroto, F Mubarok, S Suprapto, A Ajit, SZ Abidin, AD Karisma, A Hamzah, UZ Mamun, MS Rosanti, S Widiyanto
Journal: International Journal of Corrosion and Scale Inhibition
Year: 2024
Topics: Biomedical Engineering; Materials Science
Abstract: Titanium alloy Ti6Al4V is extensively utilized in biomedical implants owing to its advantageous mechanical characteristics and biocompatibility. Nevertheless, the presence of vanadium and aluminum ions may result in cytotoxic effects, allergic reactions, and hindered bone mineralization. To mitigate these concerns, a variety of surface modification techniques have been developed to improve the alloy’s biocompatibility for medical applications. Consequently, this study investigated the efficacy of a composite coating composed of hydroxyapatite, chitosan, and hyaluronic acid to enhance the biocompatibility, corrosion resistance, and antibacterial properties of Ti6Al4V implants. Different formulations of HAp/CS/HA coatings were applied to Ti6Al4V substrates through electrodeposition (40 V, 4 min), chosen for its effectiveness in achieving uniform coatings. The resulting coatings displayed a consistent morphology, and FTIR analysis validated the presence of characteristic functional groups linked to HAp, CS, and HA. The thickness of the coatings was found to be directly related to the concentration of HAp, while the incorporation of HA led to a reduction in thickness due to increased viscosity of the solution. Bioactivity evaluations in Simulated Body Fluid indicated that coatings with elevated HAp content demonstrated enhanced resistance to degradation. Importantly, the HAp/CS/HA coatings significantly improved antibacterial activity against E. coli, with formulations containing higher HAp concentrations showing the lowest corrosion rates. These results underscore the potential of HAp/CS/HA coatings in enhancing the biocompatibility, corrosion …
KAJIAN SINERGI ANTARA PENGGUNAAN TRACTOR GRABER DAN PRIME MOVER UNTUK EFEKTIFITAS DAN EFESIENSI PENGANGKUTAN TBS DI PT LANGGENG MUARA MAKMUR
Authors: Suprapto Suprapto
Year: 2024
Topics: Agricultural Engineering; Mechanical Engineering
Abstract: Transportation is one of the keys to determining the quality of oil palm fruit, so a synergy 15 study was carried out between the use of tractor grabers and prime movers for the 16 effectiveness and efficiency of FFB transportation. The research carried out aims to 17 determine the effectiveness of using FFB transportation mechanization using a tracktor 18 graber and prime mover, the effect of using FFB transportation mechanization on the 19 costs/FFB incurred and the effect of using FFB transportation mechanization on labor 20 savings in the FFB production ratio. 21 This research was carried out at PT. Langgeng Muara Makmur (Mangrove Estate) in 22 Balaimea Village, North Pamukan District, Kotabaru Regency, South Kalimantan. The 23 research period will be carried out from April to July 2023. This research was carried 24 out by collecting primary data and secondary data. Primary data includes: 1) Data on 25 FFB loading time, transport speed, transport distance and time taken during FFB 26 transport. 2) analyze the costs used to transport Fresh Fruit Bunches (FFB). Secondary 27 Data includes: 1) Collecting general data, namely land area data and production data. 28 2) Collecting data on the cost of Tractor Graber and Prime mover units and comparing 29 the use of Dump Truck units. Data were analyzed descriptively, with tables, each data 30 was taken with 4 repetitions to be analyzed technically, economically and operational 31 costs. From the research results it was concluded that: 1) transportation using graber 32 tractors and prime movers is more efficient and effective. 2) Transportation costs using 33 prime movers and graber tractors …
Optimization of Phosphate Adsorption Using Activated Carbon Derived from
Authors: Rachmannu Ilham, Fataty Rahmah, Nurul Said, Mohamad Budiono, Suprapto Suprapto
Journal: Journal of Renewable Materials
Year: 2024
Topics: Environmental Science; Chemical Engineering
Abstract: This study investigated the efficiency of activated carbon from Pangium edule shells for removing phosphate from aqueous solution. The adsorption capacity of the synthesized activated carbon was determined to be 19.8392 mg g− 1. Various isotherm models were used to analyze the adsorption process, Henry, Freundlich, SIP, and Halsey isotherm fitting showed r 2 values close to 1.0. These isotherms indicated a combination of physisorption and chemisorption mechanisms, with heterogeneity and multilayer formation playing important roles. A pseudo-second-order model described the adsorption kinetics well, suggesting chemisorption as the dominant mechanism with an r 2 value of 1.0 and a rate constant k 2 of 1.2550 min− 1. The optimization was carried out using central composite design (CCD) using 3 factors (contact time (minutes), adsorbent dosage (mg), and initial phosphate concentration (ppm)) with 3 …
MODIFICATION AND CHARACTERIZATION OF AMPROTAB WITH HYDROXYPROPYL METHYLCELLULOSE USING CITRIC ACID AS CROSSLINKING AGENT
Authors: SUPRAPTO SUPRAPTO, TEUKU NANDA SAIFULLAH SULAIMAN, ABDUL ROHMAN, AKHMAD KHARIS
Year: 2024
Topics: Pharmaceutical Science; Materials Science
Abstract: Objective: This study aimed to characterize Amprotab that has been modified chemically, physically, and mechanically using HPMC and citric acid. Methods: The study is divided into two parts: three control formulas and three treatment formulas. Control Formula 1 (without HPMC and citric acid), Control 2 (HPMC 1.5 g without citric acids), Control 3 (citric acid 1.5 g without HPMC), Formula 1 (HPMC 4.5 g and citric acid 4.5 g). By analyzing Fourier Transform Infrared (FTIR), scanning electron microscopy (SEM), swelling, tensile strength, stability (freeze-thaw cycles), X-ray Diffraction (XRD), and Thermogravimetric Analysis (TGA), copolymers modified by Amprotab were characterized. Results: An FTIR analysis revealed that crosslinking of Amprotab was formed in formulas 1, 2, and 3 with prominent C= O ester bonds at peaks of 1730.22 cm-1, 1733.12 cm-1, and 1736.01 cm-1. The surface morphology of the modified cassava amylum CROSSLINKED COPOLYMER (CCA) was coarser. CCA's expanding power is less than that of natural Amprotab, whereas CCA's tensile strength is greater. Conclusion: CCA has a high value for syneresis. XRD analysis revealed that CCA has a crystal diffraction pattern of type B, and TGA analysis revealed that CCA is stable at high temperatures.
Electrosynthesis of Anisotropic Biogenic Silver Nanoparticles as a Promising Antibacterial Agent using Stachytarpheta jamaicensis Leaf Extract
Authors: BAMBANG KUSWANDI SISWANTA, SISWOYO SISWOYO, SUPRAPTO SUPRAPTO, DIDIK PRASETYOKO
Journal: Sains Malaysiana
Year: 2024
Topics: Nanotechnology; Biotechnology
Abstract: Antibiotic-resistant bacteria provide a great opportunity to use silver nanoparticles (AgNPs) as potential antibiotic replacements. This work utilized Stachytarpheta jamaicensis leaf extract (SJLE)-mediated electrosynthesis of biogenic AgNPs. By using two silver rods and SJLE as the electrolysis medium, biogenic AgNP is produced through electrosynthesis. The properties of the formed AgNPs and SJLE phytochemical composition were examined. The disc diffusion method was utilized to evaluate AgNPs’ antibacterial efficacy against Escherichia coli and Staphylococcus aureus. The high amount of phenolics, flavonoids, and tannins in SLJE provides biomolecules rich in-OH and carbonyl groups, allowing SLJE to have antimicrobial effects as well as act as a capping agent and bioreductor during electrosynthesis. The presence of functional groups from various phytochemicals leads to the formation of anisotropic AgNP crystals with a size of 38.22±13.06 nm and high purity (95.75±0.43%). Antibacterial activity tests against E. coli and S. aureus show that anisotropic biogenic AgNPs outperformed spherical AgNPs, probably due to the angular AgNPs’ ease of penetration into bacterial cell walls. The characteristics of the AgNPs developed induced outstanding antibacterial efficacy against E. coli and S. aureus. Thus, SLJE-based electrosynthesis provides a synergistic synthetic design of AgNPs as antibacterial agents with several potential long-term advantages, including high purity, fast synthesis, low cost, absence of hazardous ingredients, and simplicity in scaling up.
ENTERPRISE PENERAPAN ENTERPRISE ARCHITECTURE UNTUK SISTEM INFORMASI PENGARSIPAN PADA KANTOR KECAMATAN GADINGREJO: PENERAPAN ENTERPRISE ARCHITECTURE UNTUK SISTEM INFORMASI …
Authors: Suprapto Suprapto
Journal: Jurnal Informatika Software dan Network (JISN)
Year: 2024
Topics: Information Technology; Systems Engineering
Abstract: In the current era of reform, human dependence on data technology continues to increase, with the use of internet access continuing to become widespread. a small part of the government system, to be able to follow technological developments and continue to improve performance skills in managing data, such as message archiving has a significant position in an institution and is used to support the activity process carried out by the institution. With this archiving system, it can be easier to process and speed up the management of incoming and outgoing message information and can store messages digitally and make it easier for civil staff at the Gadingrejo sub-district office to search for incoming and outgoing messages on a web basis. using the Enterprise Architectural Planning (EAP) method, with the aim of archiving documents based on this website, it is attempted to help facilitate the process of storing …
Effect of Synthesis Temperature on Adsorbent Performance of Blending Anionic and Cationic Gels in Divalent Metal Ions Adsorption
Authors: Eva Oktavia Ningrum, Suprapto Suprapto, Saidah Altway, Warlinda Eka Triastuti, Afan Hamzah, Agus Surono, Lulu Sekar Taji, Erlangga Ardiansyah
Journal: Indonesian Journal of Chemistry
Year: 2024
Topics: Chemical Engineering; Materials Science
Abstract: In this study, the anionic and cationic gels were synthesized separately using copolymerization between N-isopropylacrylamide (NIPAM) and acrylic acid or chitosan through a polymerization reaction using N, N'-methylenebisacrylamide (MBAA) as a cross-linker with various monomer concentrations and synthesis temperature. The anionic and cationic gels were blended to minimize inter-intra particle association and to improve the adsorption ability. The FTIR analysis found that the synthesis of the NIPAM-co-acrylic acid and NIPAM-co-chitosan gels was successfully carried out, indicating no presence of a vinyl group in the functional group. The result showed that the ion adsorption amount of Pb 2+ ions blending gels increased significantly, almost twice compared to the adsorption before blending. The adsorption amount of Pb 2+ ions increased with increasing the gel synthesis temperature. The adsorption amount follows the order of Pb 2+> Fe 2+> Ni 2+. The adsorption amount of Pb 2+ tends to decrease with increasing sedimentation volume. The higher the synthesis temperature, the larger the porous diameter formed. These results demonstrate that blending gel of NIPAM-co-chitosan and NIPAM-co-acrylic acid is a feasible alternative for removing heavy metal ions owing to its good adsorption performance.
Influence of Indium Tin Oxide (ITO) poling temperature in vacuum on surface roughness of Polyvinylidene Fluoride (PVDF) film
Authors: Suprapto Suprapto, Lisyanto Lisyanto, Eswanto Eswanto, Selamat Riadi, Safri Gunawan, Henry Iskandar, Jubaidah Jubaidah, Muhtadin Muhtadin
Journal: Jurnal Polimesin
Year: 2023
Topics: Materials Science; Polymer Science
Abstract: The surface roughness is a significant parameter of the performance of PVDF thin film sensors. In this work, we have investigated the effect of ITO poling in vacuum at various temperature on the surface roughness of uniaxially stretched PVDF film. The influence of poling temperature on the surface roughness of PVDF film was examined using atomic force microscopy (AFM). In this work, the AFM data are obtained through the database, and topography is analyzed using Gwydion Software (GS). GS has characterized surface roughness in terms of Average Roughness (R a), Root Mean Square (R rms), and Arithmetic average height (R z). The results show that the GS can detect and measure profile thickness and roughness on a nanoscale with reliable accuracy. The results confirm that the increased poling temperature can reduce the roughness of the surface.
LITERATURE REVIEW OF PHYTOCHEMICAL PROPERTIES OF FIG (Ficus Carica L) IN SURAH AT-TIN VERSE 1
Authors: Zulkarnain Zulkarnain, Suprapto Suprapto, Tony Cortis Maigoda
Year: 2023
Topics: Phytochemistry; Religious Studies
Abstract: Allah provides information about the fig plant in Surah At-Tin verse 1. The fig plant is a special plant that is specifically mentioned in the Quran and is widely used for human health such as preventing hypertension, maintaining heart health, and treating diabetes. The fig plant is a plant that has many chemically active compounds that are useful in medicine. This study aims to determine the content of the surah At-Tin verse 1 and identify the features of the fig plant from the perspective of plant phytochemicals. The results showed that Allah swore by the name of the fig plant in Surah At-Tin verse 1. This indicates that there are many blessings on the fig plant for human life. Phytochemical test results showed that the fig plant has chemical compounds that are beneficial to human health such as flavonoids, alkaloids, phenolics, terpenoids, and saponins. These compounds act as anti-oxidants, function in the detoxification of …
Increasing Hardness and Wear Resistance of SKD61 Steel by Using Plasma Nitrocarburizing Proccess
Authors: Ridwan Setiawan, Tjipto Sujitno, Eddy Sumarno Siradj, Suprapto Suprapto, Hari Suprihatin
Journal: Solid State Phenomena
Year: 2023
Topics: Materials Science; Mechanical Engineering
Abstract: This study observed the results of plasma nitrocarburizing processes on JIS SKD61 Steel. This research aims to use a plasma nitrocarburizing process to increase the hardness and wear resistance of JIS SKD61Steel. Before plasma nitriding was carried out, the sample had undergone a pre-treatment process. The optimum hardness value obtained after the pre-treatment process was 504 HV. The optimum hardness obtained in the plasma nitrocarburizing sample was 830 HV at temperatures 500°C for 4 hours. The optimum wear resistance or specific wear results on plasma nitrocarburizing was 0.11 x10 -6 mm 2 /kg at temperatures 400°C for 4 hours and 0.08 x10 -6 mm 2 /kg at temperature 500°C for 4 hours. XRD test results show that the phase formed in the nitrocarburizing compound layer was the iron nitride, iron carbonitride FeN, FeN 0.49 , ε-Fe 2-3 N, or ε-Fe 2-3 (N,C). The process of plasma nitrocarburizing has …