Garuda - Garba Rujukan Digital

p-Index From 2020 - 2025

5.795

P-Index

This Author published in this journals

All Journal International Journal of Advances in Applied Sciences Transmisi Rekayasa Mesin Journal of Engineering and Management in Industrial System Jurnal Inovasi Teknologi Pendidikan Bulletin of Chemical Reaction Engineering & Catalysis Journal of Mechanical Engineering Science and Technology Civil Engineering Dimension Jurnal Karinov Jurnal Teknik Mesin dan Pembelajaran Jurnal Komunitas: Jurnal Pengabidian Kepada Masyarakat Jurnal Pengabdian, Pendidikan dan Teknologi International Journal of Mechanical Engineering Technologies and Applications (MECHTA) Mechanical Engineering for Society and Industry Automotive Experiences Jurnal Abdimas Prakasa Dakara Bulletin of Chemical Reaction Engineering & Catalysis Vokasi UNESA Bulletin of Engineering, Technology and Applied Science

Rr. Poppy Puspitasari

Universitas Negeri Malang

Author-ID : 2412532

Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation Other

Published : 56 Documents Claim Missing Document

Claim Missing Document

Articles

1 2 3 4 5

Analysis of Hardness, Microstructure, Macrostructure, and Fluidity of Al-Si with Eggshell Variation as Binder in Sand Casting Fitriyanto, Retnaldi; Puspitasari, Poppy; Murdanto, Putut
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 2, No 2 (2018)
Publisher : Universitas Negeri Malang

Metal casting process can be described as the process of making object by melting metal then poured into the desired mould. The mould that is commonly used is sand moulding. Binder which commonly used in sand casting process is bentonite. Bentonite is kind of mineral which can be run out if it is used continuously. The background of this study was to analyse the other binder that could reduce the use of bentonite by utilizing eggshell. This study aimed to analyse the hardness, microstructure, macrostructure, and fluidity of the cast which yielded by using variations of eggshell. The method that used was experimental method with a model of one-shot case study with descriptive analysis. The study result showed that the highest value of fluidity test was found at variation of 7% eggshell and 3% bentonite with hardness value of 180.86 HV. There were found several defects, casting result with variation of 4% eggshell and 3% bentonite found that there were ± 28 pinhole defects and ± 20 open grain defects. There were found ± 65 pinhole defects and ± 30 open grain structure defects in the casting result with variation 7% eggshell and 3% bentonite. The casting result with variation 10% eggshell and 3% bentonite had ± 50 pinhole defects and ± 30 open grain structure defects.

Analisis Sifat Fisik dan Kompresibilitas Nanopowder Zinc Oxide (ZnO) sebagai Alternatif Material Amalgam Qosim, Nanang; Murdanto, Putut; Puspitasari, Poppy
Jurnal Rekayasa Mesin Vol 9, No 1 (2018)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Severe effects of the mercury use on health as an amalgam material have required an alternative material in order to eliminate it from amalgam composition. This research was conducted to analyze the physical properties and compressibility of ZnO nanopowder as an alternative amalgam material. The physical properties including morphology, dimensions, and the atomic ratio were analyzed by SEM, XRD-XRF and EDX. Further, the compressibility was conducted by using hydraulic press machine. The results showed that ZnO has particle size of 14.34 nm with morphology classified as nanorods. In the compressibility test, both the variation of compression loadings and holding time have brought an effect on the significant increase of ZnO nanopowder density.

Pengaruh Penambahan Nanokatalis MnFe2O4 Terhadap Proses Pirolisis Sampah Plastik HDPE Wati, Rita Fajar; Wardana, ING; Winarto, Winarto; Sukarni, Sukarni; Puspitasari, Poppy
Jurnal Rekayasa Mesin Vol 9, No 3 (2018)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

The effects of MnFe2O4 nanocatalyst addition toward HDPE plastic waste pyrolysis have been investigated by performing experiments on METTLER TOLEDE TGA DSC1 Simultaneous Thermal Analyzer at heating rates of 10oC/min by nitrogen and temperatures range from room temperature to 1000oC. The results of pyrolysis showed that the main polymer components of HDPE plastic waste, both, with and without MnFe2O4 nanocatalyst addition degraded in one stage. The MnFe2O4 nanocatalyst addition increases the maximum mass loss rate of HDPE plastic waste pyrolysis, however, it increase the degradation of the initial temperature.

THE EFFECTS OF r-HDPE/r-PP FORMULATION RATIO INTO MECHANICAL, THERMAL AND MORPHOLOGICAL BEHAVIOR OF r-HDPE/r-PP POLYMERIC BLENDS Razak, Jeefferie Bin; Wahid, Siti Zaleha; Mohamad, Noraiham; Puspitasari, Poppy; Jaafar, Rosidah; Tutuko, Pindo
Journal of Engineering and Management in Industrial System Vol 8, No 2 (2020)
Publisher : Badan Penerbit Jurnal, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jemis.2020.008.02.1

This study has reported the effects of different formulation ratio between recycled high density polyethylene (r-HDPE) and recycled polypropylene (r-PP) into the resulted mechanical, thermal and morphological properties of r-HDPE/r-PP polymeric blends. About five (5) different formulation ratio of r-HDPE/r-PP have been prepared and tested. The best combination ratio between r-HDPE and r-PP was determined in this work. It was found that the 70/30 wt.% of r-HDPE/r-PP blend possessed an outstanding mechanical and physical strength. About 59.80% and 2.30% of positive improvement in comparison to 0/100 wt.% of r-HDPE/r-PP was achieved for both of tensile strength and hardness, respectively. Interestingly, for 70/30 wt.% of r-HDPE/r-PP blend had also experienced major increased in their elongation at break up to 473%. The fracture morphological behavior of the tested samples that were observed via SEM observation, had established the interaction between the structure and properties of produced r-HDPE/r-PP blends, especially on the miscibility state between the r-HDPE and r-PP phases. Thermal evaluation by using the DSC had confirmed the partial miscibility state due to dominant peak shifting at 120 - 140Â°C and obvious melting peak reduction pattern. Overall, from this study, it was found that the blending between r-HDPE and r-PP into r-HDPE/r-PP blends are feasible to improve the properties of primary phase.

Physical Properties and Compressive Strength of Zinc Oxide Nanopowder as a Potential Dental Amalgam Material Nanang Qosim; Putut Murdanto; Poppy Puspitasari
International Journal of Advances in Applied Sciences Vol 7, No 2: June 2018
Publisher : Institute of Advanced Engineering and Science

In this study, the application of nanotechnology was applied in the dentistry field, especially in the innovation of dental amalgam material. To date, mercury (Hg) has been used widely as dental amalgam material with consideration of the cheap price, ease of use, and good mechanical strength. However, last few years, many problems have been faced in the dentistry field due to the use of mercury. Hence, new material is needed as an innovation to eliminate the mercury from dental amalgam composition. This research was conducted to analyze the physical properties and compressive strength of zinc oxide (ZnO) nanopowder as a potential dental amalgam material. The physical properties such as morphology and dimensions were analyzed by SEM and XRD. Further, the compression test was conducted by using hydraulic press machine. The results showed that the ZnO nanopowder analyzed has the particle size of 14.34 nm with the morphology classified as nanorods type. On the compression load of 500 kg, the average of ZnO green density is 3.170 g/cm3. This value experienced the increase of 4.763% when the load was set to 1000 kg, and 7.539% at 2000 kg. The dwelling time also took the same effect. At 30 seconds, the average of ZnO green density is 3.260 g/cm3. This value experienced the increase of 0.583% at 60 seconds and 3.098% at 90 seconds.

Rancang Bangun TTG I-Bite (IoT Basic Automatic Smart Feeder) untuk Meningkatkan Kapasitas Produksi Tambak Ikan Lele Sukarni Sukarni; Malik Abdurrachman; Ardianto Prasetiyo; Avita Ayu Permanasari; Poppy Puspitasari; Heru Suryanto
Jurnal KARINOV Vol 4, No 1 (2021): Januari
Publisher : Institute for Research and Community Service (LP2M), Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um045v4i1p%p

Pakan merupakan komponen terbesar dalam usaha budidaya ikan konsumsi. Pemberian pakan yang kurang baik berdampak pada meningkatnya Feed Conversion Ratio (FCR), menurunnya kualitas air, dan kematian ikan. Berdasarkan permasalahan yang dihadapi oleh mitra dan perkembangan teknologi saat ini, artikel hasil pengabdian masyarakat ini mengusulkan sistem Teknologi Tepat Guna I-Bite yang menggunakan IoT sehingga mempermudah dalam pengaplikasiannya. User dapat mengatur banyak pakan yang akan diberikan, durasi pemberian pakan, jarak area tebar, jadwal pemberian pakan sesuai dengan kebutuhan, serta siklus data pemberian pakan melalui email. Tujuan pengabdian masyarakat ini adalah untuk mengatasi kesulitan dalam pemberian jumlah pakan yang tepat pada area yang merata dengan jadwal yang telah ditentukan serta memberikan sosialisasi terkait cara pengoprasian, perakitan, dan pemasangan instrumen. Metode pelaksanaan pengabdian ini adalah dengan sosialisasi serta pengujian peforma instrumen. Hasil pengujian menunjukan bahwa instrumen dapat menebar pakan sejauh 14m dengan debit 4kg/menit pada sudut 110’. Berdasarkan hasil pengujian tersebut dapat disimpulkan bahwa I-Bite dapat menjadi solusi mitra dalam hal pemberian pakan dengan menggunakan instrumen yang diajukan dapat menjadi solusi terhadap permasalahan yang dialami mitra terutama mempermudah dalam pemberian pakan. Kata kunci—Teknologi, I-Bite, Internet of Things (IoT), pakan ikan, efisiensi, produksi AbstractFeed is the biggest component in the consumption of fish farming. Poor feeding results in increased Feed Conversion Ratio (FCR), decreased water quality, and fish mortality. Based on the problems faced by partners and current technological developments, this article on the results of community service proposes an Appropriate Technology I-Bite system that uses IoT to make it easier to apply. Users can set the amount of feed to be given, the duration of feeding, the distance of the stocking area, the feeding schedule according to the needs, and the data cycle of feeding via email. The purpose of this community service is to overcome difficulties in providing the right amount of feed in an even area with a predetermined schedule and provide socialization related to how to operate, assemble and install instruments. The method of implementing this service is by socializing and testing the performance of the instrument. The test results show that the instrument can spread the feed as far as 14m with a discharge of 4kg / minute at an angle of 110 '. From the results of these tests, it can be concluded that I-Bite can be a partner solution in terms of feeding using the proposed instruments which can be a solution to the problems experienced by partners, especially making it easier to feed.Keywords—Technology, I-Bite, Internet of Things (IoT), fish feed, efficiency, production

WORKSHOP DAN PENDAMPINGAN TRANSFORMASI COLOCASIA ESCULENTA L. DENGAN MENGGUNAKAN AUTOMATIC CUTING MACHINE SEBAGAI UPAYA MENGHASILKAN PRODUK BERNILAI JUAL TINGGI BERBASIS POTENSI UNGGULAN DAERAH DI KABUPATEN TRENGGALEK JAWA TIMUR Andika Bagus Nur Rahma Putra; Amat Mukhadis; Fuad Indra Kusuma; Rr. Poppy Puspitasari
Jurnal KARINOV Vol 2, No 2 (2019): Mei
Publisher : Institute for Research and Community Service (LP2M), Universitas Negeri Malang

Pengabdian kemitraan masyarakat ini bertujuan untuk: (1) melakukan workshop pengolahan Colocasia Esculenta L. menjadi sweet chips; (2) melakukan pendampingan penggunaan automatic cuting machine sebagai sarana untuk pengolahan Colocasia Esculenta L. menjadi sweet chips; (3) melakukan analisis dalam menghasilkan produk bernilai jual tinggi; (4)meningkatan kualitas dan kuantitas produk berbasis potensi unggulan wilayah; (5) meningkatan keterampilan dan pemahaman masyarakat. Penelitian ini dilakukan di kec. Gandusari Kab.Trenggalek, Jawa Timur. Mitra pada kegiatan ini yaitu 5 industri daerah, masyarakat, dan karangtaruna. Hasil pada kegiatan ini meliputi: (1) para peserta mampu mengolah salah satu potensi unggulan daerahnya menjadi makanan yang memiliki nilai jual tinggi; (2) tingkat pemahaman peserta setelah mengikuti kegiatan ini relatif tinggi dibuktikan dengan hasil uji efektifitas dengan nilai masing-masing tahapan sebagai berikut. Pada tahap I (pendalaman materi tentang Colocasia Esculenta L.) memiliki persentase sebesar 84,7%; tahap II dan III (tahap persiapan alat& bahan, dan tahap pemilihan & pengupasan) memiliki persentase sebesar 86,2%; tahap IV dan V (tahap tahap pemotongan, dan tahap pengeringan & penggorengan) memiliki persentase sebesar 87,4; dan tahap VI (tahap packing) memiliki persentase sebesar 85,7%;dan (3) hasil produk dari kegiatan ini yaitu produk siap jual sweet chips Colocasia Esculenta L. dan automatic cuting machine yang telah dihibahkan kepada mitra industri kegiatan workshop dan pendampingan transformasi Colocasia Esculenta L. menjadi sweet chips.

Optimum Conditions for EOR Using Nanofluids Subjected to EM Waves Muhammad Kashif; Poppy Puspitasari
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 1, No 1 (2017)
Publisher : Universitas Negeri Malang

Today‟s major challenge for oil industry is to improve the oil recovery from the reservoir. Various enhanced oil recovery (EOR) methods have been applied in the field and the steam injection is one of the most favourable methods. The deep reservoir will result in failure of this method due to excessive heat dissipation. In this situation, generating and injecting steam may be uneconomical due to the tremendous reduction of the recovery. Some methods using nanotechnology have been introduced and elaborated. However, we propose the electromagnetic (EM) method as an alternative due to its long range transmission of the transverse waves. These EM waves, coupled with some nanoparticles (NP), can modify the surface energy. We propose an optimum conditions based on some parameters namely, frequency, flux density, space charge density and skin depth, employing Maxwell and Helmholtz equations which interact with some magnetic and dielectric nanoparticles. A newly-designed EM antenna with a very high flux density is the model for this specific purpose. The electrical energy from the antenna transfers the waves to the dielectric and resistive nanoparticles, which is then transferred to the fluid with high capillary force. This results in lower surface tension which reduces the oil viscosity. In order to investigate the transport phenomena of the nanoparticles in porous medium, we applied Darcy‟s law. Our preliminary study for scale model simulations showed that at a frequency of 0.125Hz, the electric field of the curve antenna with magnetic feeders was 4280% higher compared to the one without magnetic feeders,At a frequency of 0.125Hz, the magnetic field of the curve antenna with magnetic feeders was 3677% higher in comparison with the one without magnetic feeders. With the increasing frequency from 0.125Hz to 9Hz, the electric field and magnetic field of the antenna with feeders decreased by 99%. The permeability and porosity of glass beads packed column was 30.58mD and 25.87% respectively. It was observed that the cumulative recovery of oil reached 21.11% by using ZnO nanofluid with electromagnetic waves, 17.23% by using ZnO nanofluid without electromagnetic waves, 32.59% by using iron oxide nanofluid with electromagnetic waves, and 29.68% by using iron oxide nanofluid without electromagnetic waves. In summary, the use of ZnO and iron oxide nanoparticles as nanofluids with electromagnetic waves is considered the most effective to use in enhanced oil recovery.

Formula of Moulding Sand, Bentonite and Portland Cement toImprove The Quality of Al-Si Cast Alloy Andoko Andoko; Poppy Puspitasari; Avita Ayu Permanasari; Didin Zakaria Lubis
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 1, No 2 (2017)
Publisher : Universitas Negeri Malang

A binder is any material used to strengthen the bonding of moulding sand grains. The primary function of the binder is to hold the moulding sand and other materialstogether to produce high-quality casts. In this study, there were four binder compositions being tested, i.e. 5% bentonite + 5% Portland cement, 4% bentonite + 6% Portland cement, 6% bentonite + 4% Portland cement, and 7% bentonite + 3% Portland cement. Each specimen was measured for its compressive strength, shear strength, tensile strength and permeability. The highest compressive strength was obtained fromthe specimen composed of 6% bentonite+ 4% Portland cement. The highest shear strength was obtained from the moulding sand with 7% bentonite+ 3%Portland cement. The highest tensile strength was obtained fromthe specimen contained 5% bentonite+ 5% Portland cement. The specimen composed of 5% bentonite + 5% Portland cement had the lowest permeability of 131 ml/min, while that of 6% bentonite + 4% Portland cement had the highest permeability of 176 ml/min.

Properties of Brass under Different Pouring Temperatures in Sand Casting Process Poppy Puspitasari; Avita Ayu Permanasari; Andoko Andoko; Bayu Angga Pratama
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 1, No 2 (2017)
Publisher : Universitas Negeri Malang

This study aimed to determine the toughness of casts produced by the sand casting process at various temperatures against brass, and to investigate the structure contained in the cast madeusing abrass metal mould. This study was experimental research that observed the results of a treatment applied to a specimen group. This pre-experimental study usedthe one-shot case study model in which a group of samples was given treatment. The results showed that the specimen poured at 900°C exhibiteda microstructure consisting ofgood Cu-Zn content, while that at 700°Chad the least Cu content. It indicates that the higher the temperature used for metal casting (brass), the more brittle the cast. The toughness of the materialwas influenced by the alloy composition and the pouring temperature of each specimen; the higher the pouring temperature, the better the treatment of alloy. The photomicrographs indicate that the higher the pouring temperature usedin the metal casting (brass), the lesser the carbon element contained in the material.

Co-Authors A. A. Permanasari Abdul Razak, Jeefferie Abdullah, Muhammad Ilman Hakimi Chua Achyarsyah, Mochamad Adi Pangestu, Deni kusuma Afif Achsanul Choiri Agus Suyetno Ahmad Atif Fikri Akbar, Muhamad Rizky Al-Irsyad , Muhammad Alief Muhammad Amat Mukhadis Aminnudin, Aminnudin Amir Hamzah Andika Bagus Nur Rahma Putra, Andika Bagus Nur Rahma Andoko Andoko, Andoko Anwar Johari Aprilia Sari Yudha Ardianto Prasetiyo Arifiansyah, Gilang Putra Pratama Avita Ayu Permanasari Bayu Angga Pratama Boedya Djatmika Busono, Milzam Rahmat Danang Priyasudana Dani Hari Tunggal Prasetiyo Darmawan, Muhammad Wahid Deny Yudo Wahyudi Dewi Puspitasari Didin Zakaria Lubis Didin Zakariya Lubis Diki Dwi Pramono Djoko Kustono Eddy Rudianto Erry Yulian Triblas Adesta Fadhila Wahyu Putri Fitriyanto, Retnaldi Fuad Indra Kusuma Ghazali, Mariyam Jameelah Ginta, Turnad Lenggo Habiby, M. Nuril Anwar Hasan Ismail Heru Suryanto Imam Muda Nauri ING Wardana Izzatus Tsamroh, Dewi Jaafar, Rosidah Jeefferie Abd Razak Kevin Valiant Cahya Komara, Erwin Kurniawan, Dany Ardymas Lorenzo, Gina A. M. Alfian Mizar M. Rizka Gita Firmansyah Maheswara, Dharma Mahfud Ihsan Majid Niaz Akhtar Malik Abdurrachman Mohamad, Noraiham Muhajir, Muhamad Muhamad Fatikul Arif Muhammad Hanis Zakariah Muhammad Hanish Zakariah Muhammad Ilman Hakimi Chua Abdullah Muhammad Kashif Muhammad Najib Mauludi Muhammad Rizka Gita Firmansyah Murdanto, Putut Mustapha, Mazli N. A. Ahmad Nanang Eko Wahyuningtyas Nanang Qosim Nandang Mufti Noraiham Mohamad Nur Aliza Ahmad Nursabrina, Aisya Pasang, Timotius Pasha, Muhammad Faizullah Pindo Tutuko Pramono, Diki Dwi Prasetya, Riduwan Prihanto Trihutomo Puput Risdanareni Purwanto, Muhammad Rizky Puspitasari, Dewi Radja, Muhammad Bustomi Rahmah, Anisa Ur Razak, Jeefferie Abd Razak, Jeefferie Abd. Razak, Jeefferie Bin Retno Wulandari Retno Wulandari Reyhandi Katon Asmoro Riana Nurmalasari Rosidah Jaafar S. M. S. N. S. Zahari Samsudin Anis Saputro, Suratno Adi Shaharun, Maizatul Shima binti Simonne Andrean Crisdion Siti Nur Azella Zaine Siti Zaleha Wahid Solichin Solichin Solichin Solichin Sukarni Sukarni Sukarni Sukarni Sumarli Sumarli T. Pasang Wahid, Siti Zaleha Wahidin, Ahmad Faizal Wahono Wahono Wahyu Kurnianto Wahyunengsih, Wahyunengsih Warestu, Ayu Wati, Rita Fajar Widiyanti Widiyanti, Widiyanti Winarto Winarto Wiwik Wahyuni Yahya Zakaria Yazirin, Cepi

Title

Found 56 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 56 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 56 Documents
Search