CHARACTERIZATION OF PROPERTIES OF PVDF/POLY(DIMETHYLSILOXANE) COMPOSITES SEPARATOR WITH BLENDING MEMBRANE METHOD

<span lang="IN">The aims of this research to make</span><span> poly(vinylidene fluoride) (PVDF) and poly(dimetilsiloksan) (PDMS) </span><span lang="IN">composites </span><span>separator with blending membrane method. </span><span lang="IN">Synthesized of<span> </span></span><span>PVDF/PDMS</span><span lang="IN"> composites separator </span><span lang="IN">used various ratio </span><span>were 10/0, 9/1, 8/2, and 7/3. The purpose of increasing concentration of PDMS</span><span lang="IN">/</span><span>PVDF to improve the performance of the composites separator which includes </span><span lang="IN">a</span><span> dimensions of porosity, </span><span lang="IN">a </span><span>pore density, and </span><span lang="IN">a </span><span>electrical conductivity. Based on crystallographic analysis using XRD, the </span><span lang="IN">increasing</span><span> concentration </span><span lang="IN">number </span><span>of PDMS </span><span lang="IN">to make compositess was influence</span><span> decreas</span><span lang="IN">ing of</span><span> crystallinity </span><span lang="IN">until </span><span>29.26% in </span><span lang="IN">a </span><span>ratio 7/3</span><span lang="IN">.</span><span lang="IN">The analysing of</span><span> FTIR </span><span lang="IN">have sound the wavenumber of each phase can distinguish, which </span><span>this material includes in the criteria </span><span lang="IN">of the </span><span>composites</span><span lang="IN">. The result using XRD and FTIR to material PVDF/PDMS composites in all of the ratio constituens have shown the identification of the structure </span><span>α-</span><span lang="IN">phase of PVDF. The increase of concentration number PDMS influenced decreasing of pore dimension and increasing of pore density </span><span>with the small </span><span lang="IN">of </span><span>pore dimension 1.71 µm and pore density 4.07x10¹¹ count/m²inthe ratio 7/3. In </span><span lang="IN">a</span><span> ratio 7/3, the value of the electrical conductivity w</span><span lang="IN">as </span><span>3.45x10^-4</span><span>S/cm and the resistance </span><span lang="IN">i</span><span>ncrease</span><span lang="IN">d</span><span> up to 80%.</span>

Car Robots of Line Followers and False Detections Using Microcontroller of BS2SX Basics Tamp

<div style="text-align: justify;">This study aims to design a robot car that can follow the line and can avoid obstacles if it detects objects. The movement of the robot car is equipped with light sensor (LDR) and ultrasonic as its navigation system. Automation system navigation settings using BS2SX Basic Stamp microcontroller hardware, while the software with Pbasic programming language. The program is written on the Basic Stamp Editor already installed on the PC, then downloaded to EEPROM. Ultrasonic sensors are utilized as a detection of obstacles and light sensor sensors (LDR) as a tracked line detector. The robot will follow the designed line, if there are obstacles in front of it the robot will avoid and run back if the ultrasonic sensor does not detect obstacles in front of it. With the PWM signal input setting (Pulse Width Modulation) from the microcontroller, the robot car can walk straight, turn and will avoid when detecting obstacles. ©2017 JNSMR UIN Walisongo. All rights reserved</div>

P-Convexity Property in Musielak-Orlicz Function Space of Bohner Type

<div style="text-align: justify;">In this paper, we described about Musielak-Orlicz function spaces of Bochner type. It has been obtained that Musielak-Orlicz function space <a href="https://www.codecogs.com/eqnedit.php?latex=L_\phi(\mu,X)" target="_blank"><img title="L_\phi(\mu,X)" src="https://latex.codecogs.com/gif.latex?L_\phi(\mu,X)" alt="" /></a> of Bochner type becomes a Banach space. It is described also about P-convexity of Musielak-Orlicz function space <a href="https://www.codecogs.com/eqnedit.php?latex=\small&amp;space;L_\phi(\mu,X)" target="_blank"><img title="\small L_\phi(\mu,X)" src="https://latex.codecogs.com/gif.latex?\small&amp;space;L_\phi(\mu,X)" alt="" /></a> of Bochner type. It is proved that the Musielak-Orlicz function space <a href="https://www.codecogs.com/eqnedit.php?latex=\small&amp;space;L_\phi(\mu,X)" target="_blank"><img title="\small L_\phi(\mu,X)" src="https://latex.codecogs.com/gif.latex?\small&amp;space;L_\phi(\mu,X)" alt="" /></a> of Bochner type is P-convex if and only if both spaces <a href="https://www.codecogs.com/eqnedit.php?latex=\small&amp;space;L_\phi" target="_blank"><img title="\small L_\phi" src="https://latex.codecogs.com/gif.latex?\small&amp;space;L_\phi" alt="" /></a> and X are P-convex.©2017 JNSMR UIN Walisongo. All rights reserved.</div>

Effect of Thickness on Thermal Conductivity Based on Waste Newspaper Particle Board

<p style="text-align: justify;">Waste newspaper by most people still considered as waste that has not been used optimally, and it is the one of processed materials from wood which has lignocellulose. The material has the potential to produce particle board to test the value of thermal conductivity, which it is expected to be used as heat insulator. The process of producing particle board is by mixing 450 grams pureed newspaper with 260 grams PVAC, then print it with size (12x7)cm2 with the thickness of 0.5cm; 1 cm; 1.5 cm; 2 cm; 2.5 cm; 3 cm. The process to make particle board drying is for 5 days and the test of thermal conductivity using a 100 watt heat source, and an infrared thermometer. The result obtained from the value of thermal conductivity from newspaper particle board is when more higher value of particle board thickness then more higher the thermal conductivity value. From these result it can be concluded that the particle board which can be used as heat insulation material is the one that has a thermal conductivity value of 0.066 W/ mC; 0.125 W/ mC; 0.0167 W/ mC with thickness range of 1 cm to 2 cm.©2017 JNSMR UIN Walisongo. All rights reserved.</p>

Synthesis and Structure Characterization of SiO2 from Petung Bamboo Leaf Ash (Dendrocalamus asper (Schult.f.) Backer ex Heyne)

<p style="text-align: justify;">The Research about Synthesis and Characterization of SiO2 have been worked. We have synthesized Silica from “petung”bamboo leaf ash as SiO2 source. This step used sol gel methode. SiO2 were characterized by Fourier Transform Infra Red (FTIR) to investigated the stucture andX-Ray Diffaction to know about structure and crystallinity. FTIR spectra show peak at 617,22 cm-1 area that spesific for Si-H bond, peak at 786,96 cm-1and 1095,57 cm-1 area specific for Si-O-Si bonds. Difractogram of SiO2 show that there are peak at 2θ 21,99; 31,67 and 38,88 were specific for SiO2 that calcinated at 800oC, while for SiO2 that calcinated at 400oC there were no peak at 2θ 31,67 dan 38,88. That peaks not shown may be because low crystallinity of SiO2 that calcinated at 400oC. Calcination temperature greatly affects the crystallinity of SiO2.©2017 JNSMR UIN Walisongo. All rights reserved.</p>

Synthesis and Characterization of Cassava Shell Based Biodegradable Plastic with Kitosan Addition

<p style="text-align: justify;">Wasted-plastic which is a hardly-decomposed material was one of the major problems of trash-recycling management in Indonesia. Replacing a common plastic with biodegradable plastic was one of the solution to reduce the amount of undecomposed-materials in the enviroment. Therefore, the aim of this resarch is to study how to synthesis cassava shell based biodegradable plastic and to analyse the effect of kitosan addition on cassava shell based biodegradable plastic properties. There are three basic characterization processes performed to analyse the sample properties, i.e mechanical test, FTIR and biodegradability test. Kitosan enhanced the mechanical and biodegradability properties of samples. The elongation-percentage decreased down to 8,57% along with the increasing the amount of kitosan concentration. FTIR data indicated the presence of O-H, N-H, C-H, C=C, NO2 and C-O organic functional group on biodegradable plastic samples. Kitosan reduce the decomposition process of samples due to its hydrophilicity. Sample with highest concentration of kitosan decomposed at the longest time up to 14 days. . ©2017 JNSMR UIN Walisongo. All rights reserved.</p>

The Effect of Gel-Electrolyte on Dye Sensitized Solar Cell (DSSC) Prototype based on Nanosized-TiO2 Using Mangosteen Pericarp as Absorber

<p style="text-align: justify;">Dye Sensitized Solar Cell (DSSC) with Fluorine deped Tin Oxide (FTO) substrat and nanosize-TiO2 layer sensitized by “dye” ,mangosteen pericarp extract, was succesfully fabricated. Gel-Electrolyte as electron regenerator was synthesized by adding Polyethylene Glycol (PEG) 1000 to electrolyte solution while nanosize-TiO2 was synthesized by co-precipitation method from TiCl3 solution. The crystal size of TiO2 characterized by X-Ray Diffraction is 10.5 nm in size. The solar absorbance of “dye” mangosteen pericarp was measured using UV-Vis Spectrophotometer and it showed that the dye can absorb photon at Near Ultraviolet (NUV) to yellow visible light. Nanosize-TiO2 based DSSC with gel-electrolyte successfully reached short circuit current up to 30.9 μA, open circuit voltage 398.3 mV and performed the long term stability. ©2017 JNSMR UIN Walisongo. All rights reserved</p>

The Application of Music Therapy For Children with Autism Based On Facial Recognition Using Eigenface Method

<p style="text-align: justify;">This research is motivated by the condition of children with autism who require continuous monitoring without a parent accompany, and certain therapies who is capable to reduce repetitive behaviors and increase the concentration. Music therapy is one of the treatment which able to perform it. The implementation of this research is located in a special schools with autism, the perform is proper at certain times and requires tools for music therapy. Therefore, the integrated device was made to monitor the activities of children with autism, as well as providing music therapy automatic face recognition based on Eigenface method.This device perform when the children with autism under certain conditions (e.g. crying, the teacher would not work orders, etc.), then by capturing the the facial image, the system will process to compare the similarity with the existing database. Then, the shortest distance of euclidean is chosen. If the captured of facial image is similar to the one existing database, then the music is performed as music therapy for children with autism. The results of this system, indicates that the child's responses become more calm, easy concentration, and the repetitive attitude is reduced. While the accuracy of the system achieves by 80% (compare with the old and new database) and 20%. (without new database). ©2017 JNSMR UIN Walisongo. All rights reserved.</p>

Preparation and Microstructure of Ag Doped on ZnO

<div style="text-align: justify;"><div>Various concentration of silver (Ag) dopant on ZnO (ZnO:Ag) 2-8 mol% with solgel method were deposited on glass substrates that has been heated to a temperature of 250°C for 1h using a thermal spray coating technique and then annealed on 400C for 1h. The obtained samples were characterized by Scanning Electron Microscopy (SEM). The effect of various Ag dopant on ZnO on the microstructure are investigated. The results showed that the microstructure of ZnO:Ag are the surface of ZnO make ganglia phase with Ag grains covered the surface. The addition concentration of Ag promotes the growth of ganglia phase and grain size. The surface of ZnO:Ag ≤4 mol% the growth grain Ag is more dominant than the growth of ZnO. The dopant Ag with a concentration of 4-8mol% ganglia structure begin to form with the presence of grains. Obtained the surface of ZnO:Ag 4 mol% begins to growth ganglia phase with the largest graindiameter is 304.8 nm. ©2016 JNSMR UIN Walisongo. All rights reserved.</div></div>

The Influence of Alginate and CaCl2 concentration Towards Betacyanin content and Antioxidant Activity of Red Dragon Fruit (Hylocereus Polyrhizus) restructuring product

<p style="text-align: justify;">The purpose of this study was to determine the effect of alginate and CaCl2 concentration of antioxidant activity and betacyanin content of restructuring product of red dragon fruit, and to determine the best formulation of the product restructuring that produces antioxidant activity and the content of the highest betacyanin on product restructuring. Data were analyzed by 4x2 Factorial Design and Randomized Completely Block Design (RCBD) with 4 replications. As the first factor is the alginate concentration which are 2 %, 3 %, 4 % and 5 %. The second factors are calcium cloride (CaCl2 ) 0.5 % and 0.75 %, while as the block is the time analysis. To test the differences between treatments means, the Honestly Significant of Differences (HSD) were used at 5% level of significant.The results showed that the higher concentrations of alginate and CaCl2 causes declining content of antioxidant activity and betacyanin, the best results are obtained is at a concentration of 2% alginate and CaCl2 0.5% with betacyanin levels 0.537 ± 0.062 mg/g dry weight basis and 0.132 ± 0.011 mg / g wet weight basis. The antioxidant activity of H. polyrhyzus restructuring amounted to 77.452% ± 0.624. ©2016 JNSMR UIN Walisongo. All rights reserved.</p>