cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Risa Suryana
Contact Email
rsuryana@uns.ac.id
Phone
-
Journal Mail Official
ijap@uns.ac.id
Editorial Address
-
Location
Kota surakarta,
Jawa tengah
INDONESIA
INDONESIAN JOURNAL OF APPLIED PHYSICS
Published by Universitas Sebelas Maret
ISSN : 20890133     EISSN : 24776416     DOI : -
Core Subject : Science,
Astronomy Energy Materials Science & Nanotechnology Physics
Indonesia Journal of Apllied Physics provides rapid publication of short reports and important research in all fields of physics. Indonesia Journal of Apllied Physics publishes articles that are of significance in their respective fields whilst also contributing to the disclipline of physics as a whole. Articles should be submitted to the Editorial Office of Indonesia Journal of Apllied Physics through this site. Further information on submission is also available at this site
Arjuna Subject : -
Articles 8 Documents
 1 
Search results for , issue "Vol 5, No 01 (2015): April" : 8 Documents clear
Spatial Analysis of Surface Aquifer Thickness Based Frequency predominant in Bantul District Nugroho Budi Wibowo
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 5, No 01 (2015): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v5i01.262

Abstract

This research was conducted in Bantul in order to know the characteristics of the aquifer thickness on the top layer based on the predominant frequency value. This research was conducted by using 192 microtremor data and 32 bore hole data. The results showed that the thickness of the aquifer is more than 50 meters are in Jetis, Pundong and Bantul. Aquifer thickness> 50 m dominant in areas with predominant frequency interval (fo) 0.5 - 5 Hz contained in the district of Bantul, Bambanglipuro, Jetis and Pundong.
Pedagogical Content Knowledge (PCK) Representation in Vibration and Wave Teaching for Junior High School Endang Purwaningsih
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 5, No 01 (2015): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v5i01.252

Abstract

Learning materials of vibrations and waves in physics involve abstract mathematical knowledge, not easy to be understood, and frequently generate misconceptions. However, the subject is fundamental prerequisite for mastering more complicated physical concepts. On the other hand, teachers´ materials comprehension itself can affect the way teachers teaching and giving learning experience to the students. Here, we use descriptive research to figure out teacher´s pedagogical content knowledge (PCK) representation during teaching and learning process of vibrations and waves for junior high school grade VIII. Four professional junior high school teachers were chosen as sample. The PCK representation was focused on the content representation (CoRe) which represents teachers´ materials comprehension and their special aspects. Data collections have been done by means documentation study, ongoing classroom activities observation and interviews with the teachers as well as the students. Outcome of this research are: 1) Basic ideas/concepts expected by teachers for students to learn are not yet covering the basic concept needed to understand the concept itself, 2) Teachers are not yet mastering the teaching materials comprehensively, 3) Classroom activities/learning experiences and the method given to the students are not varied.
Astrophysics Laboratory-Based Lecture Material Development of Solarscope with Integration and Interconnection Asih Melati
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 5, No 01 (2015): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v5i01.274

Abstract

The development of laboratory-based lecture materials with integrated and interconnected value is a requirement for study and practical materials and in line with the vision and mission of UIN Sunan Kalijaga. As a result, the optimization of laboratory’s equipment is urgently needed. Although UIN Sunan Kalijaga Laboratory have had Solarscope telescope – which have a guidebook in German language – for six years, it was not optimally used even it can be used to satisfy the desires to observe astronomical objects economically, accurately and easy to operate. Based on above, this research propose to create a lab-work module for Solarscope with integration and interconnection value. This research used 4D methodology (Define, Design, Develop and Disseminate) and have passed the assessment and validation phase from material, media and integrated-interconnected value experts. The data analysis of the module which was mapped by Sukarja into 5 scale mark resulted in good grade in the module assessment by material experts with 80% from the ideal mark with most of the complaint is in the formula typing which is not clear in its derivative. The module assessment by media experts scored very good grade with 88.89% from the ideal mark regarding the content and the figures of the module. Lastly, from the integrated-interconnected value experts marked in good grade with 73.50% from the ideal mark and suggested the addition of supported Al-Qur’an verses and relevant exclamation of the Al-Qur’an’s passages. With all of these assessment results, this module can be used as the material of astrophysics lab-work and for supporting students’ researches with integration-interconnection value and enhance the university’s book collection which will support the vision and mission of UIN Sunan Kalijaga
MAGNETIC PROPERTIES OF Cu2+ SUBSTITUTED BaFe12-xCuxO19 (x= 0.1,0.2,0.3,..., 4) Syahrul Humaidi; Ratna A S; Tua Raja S; Seri Dermayu S; Perdamean S
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 5, No 01 (2015): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v5i01.264

Abstract

Permanent magnet Barium M-Hexaferrite, BaFe12-x Cux O19  was synthesized with  a wide range of x (x = 0.1, 0.2,  …, 3 and 4mole% respectively). The precursor was made by mixing BaCO3 powder and Fe2O3  powder, whereas CuO powder was used as additive. The powders were mixed together by wet milling in distilled water medium for 20 hours. The powders  had been dried at a temperature of 1000C for 24 h before calcined at a temperature of 11000C for 2 hours. The powders were then grained to prepare 400 mesh (38 µm) in diameter.  The samples density was determined by using Archimedes method, magnetic properties by using permagraph,  crystal structure by XRD-pattern and microwave absorbing properties using VNA. The hysteresis curve showed that the value of magnetic field ranging from  43.36 G to 100.42 G , remanence magnetic induction (Br) 20G-320G, coercivity (HcJ) 1.07 kOe to 9.22 kOe and energy production (BH) max from 0.05kGOe to 0.92 kGOe with a density from 3.82 g/cm3 to 5.2 g/cm3. The  effect of Cu doping tent to increase the value of density with an optimum magnetic properties at  x=0.3%mole.
Purity Testing of Cultivar Melon DNA Level (Cucumis melo L.) “Gama Melon Basket” using Surface Plasmon Resonance (SPR) Based on Silver Nanoparticle Thoyibi T; Muhammad Arifin; Kamsul Abraha
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 5, No 01 (2015): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v5i01.254

Abstract

DNA level of purity has been tested by observing the phenomenon of surface plasmon resonance (SPR) in silver film + silver (Ag) nanoparticles system as DNA sensor using Kretschmann configuration. Surface plasmon resonance (SPR) phenomenon observed in the resonance condition of reflectance spectrum vary with incident angle of laser, beamed toward prism. System is built as a model for DNA purity test instrument that give higher accuracy. DNA purity testing was conducted by placing DNA layer with various ratio on prism in order to get the angle shift value in each sample as a result. Purity level of DNA indicates the DNA quality based on the ratio between the amount of pure DNA compared to the amount of impurity materials (protein). After the deposition of DNA in ratio 1,774, 1,838 and 1,916 SPR angle shifted ,  and  respectively. Characteristic differences of DNA with different purity (ratio) are shown by reflectance value that is getting higher at a smaller ratio, indicates that in the higher DNA ratio the angle shift is getting smaller. SPR angle shift which is occurred before and after DNA deposition shows the sensitivity of SPR as DNA sensor.
Design of Detection Device for Cu Contaminated WaterUsing Induction Principle Frida Agung Rakhmadi; Astika Rusma Dewi; Ahmad Farid Azizi
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 5, No 01 (2015): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v5i01.266

Abstract

The research on detection device design of Cu contaminated water using induction principle has been done. The purpose of this research is to create a detection device of Cu contaminated water using induction principle, characterize the precision of core sensor on detection device, characterize the stability of detection device, and implement the detection device to Cu contaminated water. This research was conducted in four phases: manufacturing of detection device, characterization of core sensor precision, characterization of detection devices stability, and implementation of detection device to Cu contaminated water. The results showed that the detection device of Cu contaminated water using induction principle has been successfully made. The precision of core sensor was 99.96%, while the stability of detection device was the 60th second after turn-on. The success rate of detection device implementation on Cu contaminated water was 100.00%.
Magnetite (Fe3O4) Nanoparticle Synthesis using Silica (SiO2) Template and Magnetic Properties Characterisation Suryani Taib; Edi Suharyadi
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 5, No 01 (2015): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v5i01.256

Abstract

Nanoparticles of magnetite (Fe3O4) have been successfully synthesized by coprecipitation method by mixing FeSO4.7H2O and FeCl3.6H2O with the addition of 10% NH4OH as kopresipitan. Then, functionalized Fe3O4  concentration variation silica (SiO2) 5%, 10%, 15%, 20%, 30% and 50%. Particle size and magnetic properties of Fe3O4 nanoparticles were tested by X-Ray Diffraction (XRD) and Vibrating Sample Magnetometer (VSM). XRD results showed the addition of silica is not found new phases when added SiO2that serves as a template. The particle size of Fe3O4 nanoparticles obtained 14.23 nm, while the Fe3O4nanoparticles with the addition of a concentration of 5% and 20% respectively SiO215.45 nm and 16.37 nm. VSM results show the value of saturation magnetization and remanent magnetization decreased as more silica concentration, and increased coercivity field. Test Results of Fourier Transform Infra Red (FTIR) obtained new peaks which indicate that the functionalization process Fe3O4 with silica has been successfully carried out.
Linearization of Hue Value on The Surface of Thermochromic Liquid Crystal With Variation of Temperature Risti Suryantari; Flaviana F
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 5, No 01 (2015): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v5i01.268

Abstract

This research has observed a linear relation of hue value on the surface of a Thermochromic Liquid Crystal (TLC), with variation of temperature, based on statistic value of hue image.  In this research we use ample of TLC with temperature range 250-300 C and 300-350 C. The original image in RGB format is converted to HSV (hue, saturation, value) and by taking hue without saturation and value, then the hue image is processed using Matlab2013a based on a mathematical morphology with opening and closing for the main process to get better images. The final image of each temperature variation can be distinguished based on the statistic value of each image. The value of max and mean hue increases by increasing temperature for each sample. Both samples tend to have the same linearization based on its mean value.

Page 1 of 1 | Total Record : 8

 1 

Filter by Year

2015 2015


Reset
Filter By Issues
All Issue Vol 14, No 1 (2024): April Vol 13, No 2 (2023): IJAP Volume 13 ISSUE 02 YEAR 2023 Vol 13, No 1 (2023): IJAP Volume 13 ISSUE 01 YEAR 2023 Vol 13, No 2 (2023): October Vol 13, No 1 (2023): April Vol 12, No 2 (2022): IJAP Volume 12 ISSUE 02 YEAR 2022 Vol 12, No 1 (2022): IJAP Volume 12 ISSUE 01 YEAR 2022 Vol 12, No 2 (2022): October Vol 12, No 1 (2022): April Vol 11, No 2 (2021): IJAP Volume 11 ISSUE 02 YEAR 2021 Vol 11, No 1 (2021): IJAP Volume 11 ISSUE 01 YEAR 2021 Vol 11, No 2 (2021): October Vol 11, No 1 (2021): April Vol 10, No 01 (2020): IJAP Volume 10 ISSUE 01 YEAR 2020 Vol 10, No 2 (2020): IJAP Volume 10 ISSUE 02 YEAR 2020 Vol 10, No 01 (2020): April Vol 10, No 2 (2020): October Vol 9, No 02 (2019): IJAP Volume 9 ISSUE 02 YEAR 2019 Vol 9, No 01 (2019) : IJAP Volume 9 ISSUE 01 YEAR 2019 Vol 9, No 02 (2019): October Vol 9, No 01 (2019): April Vol 8, No 02 (2018) : IJAP Volume 8 ISSUE 02 YEAR 2018 Vol 8, No 1 (2018) : IJAP Volume 8 ISSUE 01 YEAR 2018 Vol 8, No 2 (2018): October Vol 8, No 1 (2018): April Vol 7, No 2 (2017): IJAP Volume 07 ISSUE 02 YEAR 2017 Vol 7, No 1 (2017): IJAP Volume 07 ISSUE 01 YEAR 2017 Vol 7, No 2 (2017): October Vol 7, No 1 (2017): April Vol 6, No 02 (2016): IJAP Volume 06 Issue 02 Year 2016 Vol 6, No 01 (2016): IJAP VOLUME 06 ISSUE 01 YEAR 2016 Vol 6, No 02 (2016): October Vol 6, No 01 (2016): April Vol 5, No 02 (2015): IJAP Volume 05 Issue 02 Year 2015 Vol 5, No 01 (2015): IJAP Volume 05 Issue 01 Year 2015 Vol 5, No 02 (2015): October Vol 5, No 01 (2015): April Vol 4, No 02 (2014): IJAP Volume 04 Issue 02 Year 2014 Vol 4, No 01 (2014): IJAP Volume 04 Issue 01 Year 2014 Vol 4, No 02 (2014): October Vol 4, No 01 (2014): April Vol 3, No 02 (2013): IJAP VOLUME 03 ISSUE 02 YEAR 2013 Vol 3, No 01 (2013): IJAP VOLUME 03 ISSUE 01 YEAR 2013 Vol 3, No 02 (2013): October Vol 3, No 01 (2013): April Vol 2, No 02 (2012): IJAP VOLUME 02 ISSUE 02 YEAR 2012 Vol 2, No 02 (2012): October More Issue