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INDONESIA
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL)
Published by Universitas Negeri Jakarta
ISSN : 23021829     EISSN : 24769398     DOI : https://doi.org/10.21009/03
Core Subject : Science, Education, Engineering,
Electrical & Electronics Engineering Energy Physics Other
Focus and Scope: Physics education Physics Instrumentation and Computation Material Physics Medical Physics and Biophysics Physics of Earth and Space Physics Theory, Particle, and Nuclear Environmental Physics and Renewable Energy
Arjuna Subject : Fisika dan Astronomi - Fisika dan Astronomi (Lain-Lain)
Articles 976 Documents
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ANALISIS TARIKAN DAN DIAMETER SENAR RAKET BADMINTON TERHADAP PANTULAN SHUTTLECOCK Ivan Setia Arianto; Nuri Nuri; Mahardika Prasetya Aji; Sulhadi Sulhadi
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 5 (2016): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2016
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (541.378 KB) | DOI: 10.21009/0305020210

Abstract

Badminton is a popular sport in the world. Racket and string in the Badminton games can not be separated. Many players are often confused in choosing the type of strings and tension the strings in the racket. Selection of the diameter of the strings and tension the racket strings affects the reflection distance shuttlecock. The experiment using a variation of 5 pieces of string diameter of 0.62 mm, 0.64 mm, 0.65 mm, 0.66 mm, 0.68 mm with tension strings and bouncing shuttlecock clearance for the same. The next variation is to use five types of tension strings 22, 23, 25, 27, 29 lbs with a diameter and height same for the distance shuttlecock bouncing. Variation further with starts heights of 100, 150, 200, 250, 300 cm to reflect shuttlecock. The results showed the smaller the diameter of the strings, the higher the reflection distance shuttlecock. The higher the tension of the strings then the distance the lower the reflection shuttlecock. As well as the higher shuttlecock result bounce higher. High string tension or large diameter suitable for the type of players to defende because they have good control. While the low strings tension strings or small diameter suitable for the type of players because they attack the energy efficiency. The results of this experiment to facilitate badminton player in choosing the strings tension and the strings diameter of the badminton racket appropriate type of game. Keywords: racket string, badminton, shuttlecock
PEMANASAN CEPAT KERAMIK KOMPOSIT SiC-ZrO2 DENGAN MICROWAVE DAN KARAKTERISASINYA lydia Anggraini
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 5 (2016): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2016
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (864.108 KB) | DOI: 10.21009/0305020211

Abstract

Ceramic Matrix Composite (CMC) have advantages in hardness and heat resistance. In addition, by strengthening the use of a ceramic material ZrO2, it will provide improved high temperature resistance and fracture toughness. SiC-ZrO2 composites, are also widely applied as a base material for components of automotive products, such as: spark plugs, turbo-charged, piston heads, pump seals, valve rotor and other components associated with the application of heat-resistant material. Ceramics matrix composite of SiC-ZrO2 was prepared using mechanical milling for 144 ks and heated using single-mode 2.45 GHz microwave sintering technique. The different effect of electric and magnetic fields were examined at a constant power of 800 W. The final compact specimen and the microstructures observed by scanning electron microscope (SEM) were compared to another field assisted sintering technique, also known as, spark plasma sintering (SPS). The comparison of the microstructure in both microwave and SPS were carried out at a constant temperature (~1273 K). The temperature of the microwave was controlled by adjusting the power and has been measured by an infrared radiation thermometer. Shell-core microstructures have been obtained by microwave sintering. Nevertheless, single-mode microwave sintering is generated through local heating, where heat is concentrated in the one area. The result of microstructure change in the microwave reported that the longer sintering time the size of core and shell area does not increase. In addition, grain growth was not found with the influence of the longest microwave sintering time. Keywords: Sintering, Microwave, Ceramics Composite, SiC-ZrO2, Microstructure.
PEMBUATAN DAN KARAKTERISASI PELET IKAN DARI BULU AYAM Syamsul Huda; Sulhadi Sulhadi; Mahardika Prasetya Aji
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 5 (2016): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2016
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (540.286 KB) | DOI: 10.21009/0305020212

Abstract

Quill is a waste of chicken slaughterhouse with a plentiful amount and increase with the chicken population and the level of cuts as a result of increased demand for chicken meat in the market. Nowadays, it has not been widely used, and only a small fraction is used as an ingredient to make a feather duster, seat fillers, fertilizer plants, crafts / ornaments and shuttle cock (Adiati et al., 2004). This study aims to provide characterization of the fish pellet feed material from chicken feathers by physically tested. The physical test done by resistance to water, porosity, and the buoyancy test. The results of analysis of test score results physically namely durability against water fish pellets is 18.6 minutes, the degree of porosity of 64.25%, and the buoyancy by 46.25 minutes. Chicken feathers can be used as an alternative to fish pellet feed material. Keywords: Pellets of fish, Chicken feathers, A physical test.
KARAKTERISTIK FISIS KEEMPUKAN BANTAL BERBAHAN DASAR KAPUK RANDU Rosyidatul Munawaroh; Mahardika Prasetya Aji; Sulhadi Sulhadi; Adelina Ryan Candra Dewi
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 5 (2016): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2016
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (631.267 KB) | DOI: 10.21009/0305020213

Abstract

The aim of this study were to determine the tenderness of a pillow from physical parameters and determine the composition of the kapok stuffing with low production costs but produces a soft pillow. The physical character tenderness of a pillow can be viewed from the force constant pillows. Five pillows with same size and density are filled with different compotition of kapuk. the compotition are high quality with medium quality of kapuk. The results showed the mixed composition of kapok stuffing pillows affect the force constant despite having the same density. the smaller of force constan in pillow showing the decreases of pillow ability to suport a load. To keep low production costs of pillows but still produced a soft pillow, the pillow filled with kapok percentage of high quality and low quality is 50: 50. Keywords: pillow, kapok, composition, constant force.
KARAKTERISASI DAN ANALISIS UKURAN KRISTALIT PADA PROSES PEMADUAN Mg-Zn DENGAN METODE ULTRASONIK Henni Sitompul; Kiagus Dahlan; Deni Noviana; Sulistioso Sulistioso; Marzuki Silalahi
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 5 (2016): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2016
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (794.1 KB) | DOI: 10.21009/0305020214

Abstract

Magnesium is a metal that is being developed in the field of biomaterials, especially as biodegradable implants. MgZn alloy has mechanical properties and corrosion resistance that are better than other Mg binary alloys. The process of conducting the MgZn integration in this study, used the ultrasonic waves that flows in toluene as a medium. Ultrasonic waves will generate the cavitation to the medium, and the explosion of the cavitation will produce a high temperature and pressure in order to combine Mg with Zn. The characteristic of using XRD showed that the ultrasonic treatment for 50 hours can increase the crystallites size of Mg and Zn. However, it is not yet able to produce the MgZn alloy. This is affected by the presence of the Mg(OH)2’s layer on the Mg particles. SEM/EDS result showed that 50 hour ultrasonic treatment can clean the Mg from the layer of Mg(OH)2. Keywords: Ultrasonic, Cavitasi, MgZn, Biodegradable.
PENGARUH JENIS AKTIVATOR KIMIA TERHADAP DENSITAS DAN KAPASITANSI SPESIFIK ELEKTRODA KARBON AKTIF DARI SERBUK GERGAJI KAYU KARET E. Taer; A. Ira; Sugianto Sugianto; R. Taslim
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 5 (2016): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2016
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (591.079 KB) | DOI: 10.21009/0305020215

Abstract

Supercapacitor electrodes from rubber wood sawdust based on various of chemichal activation agent of KOH, NaOH and ZnCl2 by a concentration of 0.4 M has been analyzed. The production of activated carbon electrodes was started with the process of pre-carbonization and continued with milling process. Sampel were carbonized at temperature 600 oC and followed by physical activation process in CO2 gas atmosphere at the constant temperature of 900 oC. Measurement data of mass, diameter and thickness were collected at a every step such as: (i) before carbonization, (ii) after carbonization and (iii) after physical activation processed to obtained the density values. The density of activated carbon electrodes with different of activating agent of KOH, NaOH and ZnCl2 were 0.813 g/cm3, 0.737 g/cm3 and 0.870 g/cm3, respectively. The electrochemical properties of activated carbon electrodes were analyzed by using cyclic voltammetry (CV) method for various of activating agent of KOH, NaOH and ZnCl2 were 60.650 F/g, 59.619 F/g and 103.570 F/g, respectively. As a conclution, the activated carbon with ZnCl2 activating agent has the highest of density and spesific capacitance value. As a addition the termogravimetri analysis given the information in the produce of the heating process. Keywords: Sawdust Wood Rubber, Specific Capacitance, Density, Chemical Activation.
KOPOLIMER HIBRID TMSPMA:TEMS SEBAGAI MATRIKS IONIK PADA SEL SURYA TERSENSITISASI DYE Annisa Aprilia; Waode Sukmawati Arsyad; R. N. Lamuda; Fitrilawati Fitrilawati; Norman Syakir; Rahmat Hidayat
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 5 (2016): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2016
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (562.198 KB) | DOI: 10.21009/0305020216

Abstract

Three types of electrolyte on dye sensitized solar cell (DSSC) are liquid, solid state, and quasi-solid phase electrolytes. Among these electrolytes quasi-solid phase was expected could be handle some of disadvantages both of liquid and solid state phase on device peformance related to leakage (for liquid phase) and low ionic diffusion (for solid state phase). In conventional DSSC using liquid electrolyte a better efficiency can achieved by high ionic mobility but it is easy to leak leading to lower durabilty performance. In order to enhance durability, many researcher were change the liquid phase by solid state or quasi solid as its electrolyte. This research also try to study the effect of quasi solid electrolyte based on polyetylene glicol modified by hybrid copolymer precursor TMSPMA: TEMS (3:1) as a matrix for ionic liquid. This kind electrolyte is called as polymer gel electrolyte (PGE). Impedance characteristics for PGE was carried out to study electrical characteristics and subsequently applied on solar cell device with structure FTO/ TiO2 / Ru-dye/ PGE / Pt / FTO. Solar cell device with PGE that consist both of polyetylen glicol and copolymer TMSPMA:TEMS have an efficiency of 3.65% under light source Pin= 0.365 mW/cm2 irradiation with short-circuit current density of 3.7 mA/cm2 and open circuit voltage of 0.56 volt was obtained. Keywords: hybrid copolymer, ionic liquid, polymer gel electrolyte, impedance spectroscopy.
SINTESIS DAN KARAKTERISASI FT-IR MATERIAL GIANT DIELECTRIC CCTO DENGAN METODE REAKSI PADATAN Siska Febriana; Kamsul Abraha
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 5 (2016): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2016
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (963.103 KB) | DOI: 10.21009/0305020217

Abstract

Synthesis of giant dielectric material CaCu3Ti4O12, commonly called CCTO, using a solid-state reaction method has been done. The technique includes of mixing, compacting and heating such as calcination and sintering. The three types of starting powders : CaCO3, CuO and TiO2 were mixed then calcinated at 1100 and sintered for different temperatures at 500 , 700 and 900 . The sintered powders were characterized by X-ray diffraction (XRD) for investigate the cristalinity phase, FT-IR spectroscopy and grain size measurement. X-ray diffraction results show that CCTO synthesized with sintering treatment give material a better crystallinity than without using sintering treatment. FT-IR characteristic spectra show the main absorption at wavenumber 447,49 for 500 , 700 and 900 sintered powder that indicate the vibrations of vTi-O-Ti type. Furthermore, the vTi-O type vibrations appear at wavenumber 509,21 and 555,5 ; 516,92 and 570,93 ; 524,64 and 578,64 for 500 , 700 and 900 sintered powder respectively. However, the results of grain size calculation point out that the grain size increases with increasing sintering temperature. Keywords : Solid-state reaction, X-ray diffraction, FT-IR spectroscopy.
SINTESIS GRAPHENE OXIDE DAN REDUCED GRAPHENE OXIDE Yeti Rafitasari; Haris Suhendar; Nurul Imani; Fitri Luciana; Hesti Radean; Iman Santoso
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 5 (2016): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2016
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (881.343 KB) | DOI: 10.21009/0305020218

Abstract

Graphene oxide (GO) and reduced graphene oxide (rGO) have been synthesized chemically from graphite powder. Graphite powder was oxidized with strong oxidator agent molekul to get graphite oxide, this process was called by Hummer’s methode. Graphite oxide was dispersed in water with ultasonic vibrator to exfoliated graphite oxide layers, and become graphene oxide. Epoxy group in GO structure was reduced by hydrazine 80 wt% to get rGO. Comparation was done between self synthetic rGO and Sigma Aldrich synthetic rGO using UV-Vis and FTIR spectroscopy, which showed that optical properties of self synthetic rGO have same UV-Vis and FTIR spectroscopy with Sigma Aldrich synthetic rGO. Keywords: Graphene Oxide, Reduced Graphene Oxide, Sigma Aldrich, Optical Properties.
ANALISIS STATISTIK EFISIENSI ENERGI PENGGUNAAN TUNGKU SEKAM SEBAGAI BAHAN BAKAR ALTERNATIF RUMAH TANGGA Yulia Christina; Anissa Tsalsabila; Deti Anggraeni Ekawati; Fanny Amalia; Ratih Dwi Septiani; Novitri Novitri; Tetinia Gulo; Ahmad Khairul Reza; Retno Dwi Jayanti; Erfiani Erfiani; Irzaman Irzaman
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 5 (2016): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2016
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (511.159 KB) | DOI: 10.21009/0305020219

Abstract

Fuel usage in households commonly used in all levels of society. Has become a daily needs of households in the use of fuels, especially for cooking. Today, the limited supply of fuel gas causes the transition to alternative fuels such as rice husk furnace. Rice husk furnace is a medium that uses materials rice husk. Rice husk furnace produces an average value of efficiency reached 4.64% when the water used by 1 kg, 4,16% at 1,5 kg and 6,57% when water used weighin 2 kg. This efficiency value can be analyzed using a completely randomized design. This is because a completely randomized design is easier to analyze the data, especially research conducted in the laboratory. Keywords: Fuel, rice husk, rice husk furnace, efficiency, completely randomized design.

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