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All Journal Jurnal Spektra DEVOSI
Netta Liliani, Netta
Departemen Fisika Murni dan Terapan, FMIPA, Universitas Indonesia, Depok 16424
Religion Economics, Econometrics & Finance Education Physics Social Sciences

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PENGARUH KOPLING TENSOR, ISOVEKTOR-ISOSKALAR DAN PERTUKARAN ELEKTROMAGNETIK TERHADAP PREDIKSI DOUBLE MAGIC NUCLEI 292120 Liliani, Netta; Diningrum, Jenny P; Nugraha, A. M.; Sulaksono, Anto
Jurnal Spektra Vol 16, No 1 (2015): Spektra: Jurnal Fisika dan Aplikasinya
Publisher : Jurnal Spektra

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Abstract

Abstrak Pengaruh dari kopling tensor, isovektor-isoskalar dan pertukaran elektromagnetik terhadap inti berat dan prediksi inti super berat dipelajari melalui teori Relativistic Mean Field (RMF). Ditemukan bahwa ketiga kopling tersebut memberikan pengaruh yang signifikan terhadap sifat materi nuklir, energi ikat, spektrum energi partikel tunggal, distribusi kerapatan dan ketebalan kulit inti berat dan prediksi inti super berat. Hasil Penelitian ini menunjukan bahwa 208Pb dan 292120 adalah double magic nuclei. Hasil ini konsisten dengan data eksperimen dan prediksi model RMF.Kata kunci: model RMF, kopling tensor, isovektor-isoskalar, pertukaran elektromagnetikAbstractWe studied the effect of tensor, isovektor-isoskalar and electromagnetic exchange couplings on heavy and prediction of superheavy nuclei by using RMF model. We have found that those couplings significantly inuence the nuclear matter properties, binding energy, single particle spectra, nucleon densities and neutron skin of heavy and superheavy nuclei. Our result show that 208Pb and 292120 are double magic nuclei. This results are consistent with experimental finding and other RMF model prediction.Keywords: RMF model, tensor, isovektor-isokalar, electromagnetik exchange couplings
PROTON DRIPLINE PADA ISOTON N = 28 DALAM MODEL RELATIVISTIC MEAN FIELD (RMF) Diningrum, Jenny Primanita; Nugraha, A.M.; Liliani, Netta; Sulaksono, Anto
Jurnal Spektra Vol 16, No 3 (2015): Spektra: Jurnal Fisika dan Aplikasinya
Publisher : Jurnal Spektra

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AbstrakPosisi dua dan satu proton dripline dipelajari dengan menggunakan model Relativistic Mean Field (RMF) termodifikasi. Kami menggunakan tujuh buah  parameter set dari model RMF untuk mempelajari pengaruh kopling isovektor-isoskalar, tensor dan electromagnetic exchange terhadap prediksi proton dripline. Untuk menentukan posisi satu dan dua proton dripline pada isoton N = 28 dilakukan dengan menggunakan metode energi separasi dan energi partikel tunggal. Hasil perhitungan menunjukkan bahwa prediksi dua proton dripline dari isoton N = 28 dengan menggunakan energi separasi berada  pada Z = 30  untuk parameter set 0.04+T-E dan 0.055+T-E, serta pada Z = 32  untuk kelima parameter set yang lain dan eksperimen. Sedangkan, dari analisa energi partikel tunggal dan energi Fermi proton,  proton dripline diprediksi berada pada Z = 30.  Prediksi menggunakan metode energi separasi satu proton pada inti ganjil menunjukan dripline pada Z = 29 untuk parameter set 0.04+T-E dan 0.055+T-E, serta Z = 31  untuk kelima parameter set yang lain dan eksperimen. Sedangkan, berdasarkan analisa energi partikel tunggal dan energi Fermi proton, satu proton dripline berada pada Z = 31.  Kami juga mendapatkan bahwa kopling isovektor-isoskalar, tensor dan electromagnetic exchange tidak memiliki pengaruh yang signifikan terhadap prediksi posisi dari satu dan dua proton dripline. Kami juga mengamati bahwa satu dan dua proton dripline tidak memiliki korelasi terhadap sifat bulk inti, seperti skin, energi ikat, dan sebagainya. AbstractOne and two proton driplines are studied within modified Relativistic Mean Field (RMF) model. We use seven RMF parameter sets to study the effects of coupling isovector-isoscalar, tensors, and electromagnetic exchange on prediction of proton driplines. To determine the position of one and two proton driplines of the chain of N = 28 isotones, we use separation energies and single particle energy methods. Our calculation results have shown that prediction two proton dripline of N = 28 isotones using separation energy lies at Z = 30 for 0.04+T-E and 0.055+T-E parameter sets and it lies at Z = 32 for the one of other used parameter sets and the one from experiment. While based on single particle energy and the proton Fermi energy analysis, the proton dripline lies at Z = 30. We also obtain by using one proton separation energy,  the dripline lies at Z = 29 for 0.04+T-E and 0.055+T-E parameter sets and for the one of other used parameter sets and one from experiment lies at Z = 31 . While based on the single particle energy and proton Fermi energy analysis, it lies at Z = 31. We obtain that coupling isovector-isoscalar, tensors, and electromagnetic exchange couplings do not provide a significant effects on the prediction proton driplines. We also observe that one and two proton driplines do not have a strong correlation with bulk properties nuclei, such as skin, binding energy, and so on.Keywords: Relativistic Mean Field (RMF) model, proton driplines, separation energy, single particle energy.
PEMBUATAN ALAT PENGUKUR TINGGI BADAN OTOMATIS BERBASIS ARDUINO Bakri, Muhammad Amin; Paridawati, Paridawati; Sikki, Ilyas; Handoyo, Yopi; Sylviana, Rika; Surahto, Aep; Diningrum, Jenny Primanita; Liliani, Netta; Syahputra, Novin; Asrika, Sukwati Dewi; Apriliansyah, Mario
DEVOSI Vol 3 No 1 (2022): Devosi Jurnal Pengabdian Masyarakat
Publisher : LPPM Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/devosi.v3i1.3184

Abstract

The facilities used by Posyandu cadres in weighing and measuring the height of children under five are not sufficient, because apart from that, they are not feasible nor are they calibrated accurately. Especially for measuring the height of toddlers, so far the posyandu generally still use the manual method, Based on this background, a digital height measuring device was designed in order to refer to the mission of the Unisma Bekasi Faculty of Engineering in an effort to increase the quantity and quality of community service (PPM) in the field of applied technology (appropriate technology), so this program was implemented. The PPM partners targeted for this program are Posyandu Kemuning cadres, Jatirasa Village, Jatiasih District, Bekasi City. The results of the design of this tool complete the automatic height measurement which is quite satisfactory at the Kemuning Posyandu, Jatirasa Village, Jatiasih District, Bekasi City. Development of a baby height and body mass measurement tool based on the ATmega 8535 microcontroller by utilizing a phototransistor sensor.
Co-Authors A. M. Nugraha, A. M. A.M. Nugraha, A.M. Aep Surahto Anto Sulaksono, Anto Apriliansyah, Mario Asrika, Sukwati Dewi Jenny P Diningrum, Jenny P Jenny Primanita Diningrum, Jenny Primanita Muhammad Amin Bakri Paridawati Paridawati, Paridawati Rika Sylviana Sikki, Ilyas Syahputra, Novin Yopi Handoyo