International Journal of Science and Engineering
https://ejournal.undip.ac.id/index.php/ijse
<p>International Journal of<strong> </strong><a href="/index.php/ijse"><strong>Science</strong></a><strong> </strong>and<strong> </strong><a href="/index.php/ijse"><strong>Engineering</strong></a><strong> (</strong><a href="/index.php/ijse"><strong>IJSE</strong></a><strong>) </strong>is an international journal managed by Faculty of Engineering University of Diponegoro Semarang Central Java Indonesia. <a href="/index.php/ijse"><strong>IJSE</strong></a> is a scholarly open access, peer-reviewed, interdisciplinary, three monthly and fully refereed journal focusing on theories, methods and applications in <a href="/index.php/ijse"><strong>Science</strong></a> and <a href="/index.php/ijse"><strong>Engineering</strong></a>. All the articles in the journal are available freely with online full-text content and permanent worldwide web link. International Journal of<strong> </strong><a href="/index.php/ijse"><strong>Science</strong></a><strong> </strong>and <a href="/index.php/ijse"><strong>Engineering</strong></a><strong> (</strong><a href="/index.php/ijse"><strong>IJSE</strong></a><strong>) </strong>has become a <a href="http://www.crossref.org" target="_blank"><strong>CrossRef Member</strong></a> since year 2013. Therefore, all articles published by the IJSE journal will have unique <strong><a href="http://dx.doi.org/10.12777/ijse">DOI</a> </strong>number (<strong><a href="http://dx.doi.org/10.12777/ijse">http://dx.doi.org/10.12777/ijse</a></strong>).</p><p><strong><a href="/index.php/ijse">IJSE</a></strong> is indexed by <strong><a href="http://www.doaj.org/search?source={%22query%22:{%22query_string%22:{%22query%22:%222086-5023%22,%22default_operator%22:%22AND%22}}}"> Directory Open Access Journal (DOAJ); </a> <a href="http://journals.indexcopernicus.com/passport.php?id=8359"> Index Copernicus; </a> <a href="http://scholar.google.com"> Google Scholar; </a> <a href="http://www.openarchives.org/Register/BrowseSites?viewRecord=http://ejournal.undip.ac.id/index.php/ijse/oai"> Open Archives; </a><a href="http://www.libtoc.com/journal/18866/articles.html?currdate=0"> LibTOC; </a> <a href="http://www.getcited.org/pub/103505510/"> getCITED; </a> <a href="http://www.alsafira.com/index.php/index/index/"> ALSAFIRA; </a><a href="http://uifactor.org/JournalDetails.aspx?jid=936"> UI-FACTOR; </a><a href="http://journalseeker.researchbib.com/?action=viewJournalDetails&issn=20865023&uid=r71606"> ResearchBib; </a> <a href="http://www.journaldatabase.org/journal/issn2086-5023"> Academic J. Databased; </a><a href="http://garuda.kemdiknas.go.id/jurnal/proses?q=INTERNATIONAL+JOURNAL+OF+SCIENCE+AND+ENGINEERING&tmp=&btnG=Telusuri"> Portal GARUDA Dikti; </a> <a href="http://www.journaltocs.ac.uk/index.php?action=browse&subAction=pub&publisherID=1531&journalID=25825&pageb=1&userQueryID=11109&sort=&local_page=1&sorType=&sorCol=1"> JournalTOCs; </a> <a href="http://www.sciencecentral.com/site/4547607"> ScienceCentral; </a> <a href="http://eprint.undip.ac.id"> E-print Undip Repository </a> <a href="http://dipoindexing.com/engineering-and-physical-sciences/other-engineering-and-physical-sciences/international-journal-of-science-and-engineering/id=4#.V3ooOOTzKKQ"> DIPO Indexing </a> </strong></p><p>The scope of journal covers all area in the application on chemical, physical, mathematical, biological, agricultural, corrossion, and computer <strong><a href="/index.php/ijse">science</a></strong> to solve the <strong><a href="/index.php/ijse">engineering</a></strong> problems. <!--?php // THE FOLLOWING BLOCK IS USED TO RETRIEVE AND DISPLAY LINK INFORMATION. // PLACE THIS ENTIRE BLOCK IN THE AREA YOU WANT THE DATA TO BE DISPLAYED. // MODIFY THE VARIABLES BELOW: // The following variable defines whether links are opened in a new window // (1 = Yes, 0 = No) $OpenInNewWindow = "1"; // # DO NOT MODIFY ANYTHING ELSE BELOW THIS LINE! // $BLKey = "JL22-NW1F-8KY4"; if(isset($_SERVER['SCRIPT_URI']) && strlen($_SERVER['SCRIPT_URI'])){ $_SERVER['REQUEST_URI'] = $_SERVER['SCRIPT_URI'].((strlen($_SERVER['QUERY_STRING']))?'?'.$_SERVER['QUERY_STRING']:''); } if(!isset($_SERVER['REQUEST_URI']) || !strlen($_SERVER['REQUEST_URI'])){ $_SERVER['REQUEST_URI'] = $_SERVER['SCRIPT_NAME'].((isset($_SERVER['QUERY_STRING']) && strlen($_SERVER['QUERY_STRING']))?'?'.$_SERVER['QUERY_STRING']:''); } $QueryString = "LinkUrl=".urlencode(((isset($_SERVER['HTTPS']) && $_SERVER['HTTPS']=='on')?'https://':'http://').$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']); $QueryString .= "&Key=" .urlencode($BLKey); $QueryString .= "&OpenInNewWindow=" .urlencode($OpenInNewWindow); if(intval(get_cfg_var('allow_url_fopen')) && function_exists('readfile')) { @readfile("http://www.backlinks.com/engine.php?".$QueryString); } elseif(intval(get_cfg_var('allow_url_fopen')) && function_exists('file')) { if($content = @file("http://www.backlinks.com/engine.php?".$QueryString)) print @join('', $content); } elseif(function_exists('curl_init')) { $ch = curl_init ("http://www.backlinks.com/engine.php?".$QueryString); curl_setopt ($ch, CURLOPT_HEADER, 0); curl_exec ($ch); if(curl_error($ch)) print "Error processing request"; curl_close ($ch); } else { print "It appears that your web host has disabled all functions for handling remote pages and as a result the BackLinks software will not function on your web page. Please contact your web host for more information."; } ?--></p>Chemical Engineering Diponegoro Universityen-USInternational Journal of Science and Engineering2086-5023Source apportionment of PM2.5 bound Polycyclic Aromatic Hydrocarbons from a Tricity in the foothills of Himalayas in Northern India
https://ejournal.undip.ac.id/index.php/ijse/article/view/20076
<p>This study highlights variability in mass levels and source identification of PM<sub>2.5</sub> bound polycyclic aromatic hydrocarbons (PAHs) in the tricity of Chandigarh, Mohali and Panchkula in India. The samples of PM<sub>2.5</sub> werecollected from industrial and residential and sensitive receptor sites during summer (April-May 2015) and winter (December 2015-January 2016) season. Sampling was done using medium volume sampler and chemical analysis was done using gas-chromatography technique. The average mass levels of PM<sub>2.5</sub> varied from 31 to 91 µg m<sup>-3</sup> exceeding to NAAQ standard of 60µg m<sup>-3</sup> and total PAHs varied from 5.76 to 75.62 ngm<sup>-3</sup> with a seasonal variability as higher in winter than in summer season. The positive correlation between PM<sub>2.5</sub> & TPAHs suggested similarity in source and origin. Diagnostic ratio and principal components analysis suggested vehicular emissions, coal combustion, wood and biomass burning as the main source of PAHs in the study area for potential health hazards.</p>Sandeep GargAnita rajorAmit Dhir
Copyright (c) 2019 International Journal of Science and Engineering
2019-04-152019-04-151311610.12777/ijse.13.1.%pBroad inhibition of transmission frequency in multilayered dielectric one dimensional photonic crystal nanostructure
https://ejournal.undip.ac.id/index.php/ijse/article/view/17535
<p>We report the omnidirectional reflection (ODR) in one dimensional photonic crystal (PC) structure consisting of alternate layers of Cryolite (Na<sub>3</sub>AlF<sub>6</sub>) as material of low refractive index and Germanium (Ge) as material of high refractive index. The effects of the thickness of layers and incidence angles on the spectral reflectance have been investigated using transfer matrix method (TMM). The proposed structure gives broad inhibition of transmission frequencies within a wide range of wavelengths in the visible-near IR region (600 nm- 850 nm) which can be tuned according to the design parameters. We observe that cryolite based photonic crystal structure can be used as a good candidate for wavelength filter or broad reflector in the near infrared spectrum which is very useful in many imaging sensors in the field of optical technology</p>VINOD CHACKOSonia BansalAurangzeb khurram Hafiz
Copyright (c) 2019 International Journal of Science and Engineering
2019-04-152019-04-1513171110.12777/ijse.13.1.%pDesign of Filing System for police investigation report on the Forensic Document Unit of POLRI Forensic Laboratory Center
https://ejournal.undip.ac.id/index.php/ijse/article/view/21443
<p>The Archiving system of Official Report of Inspection that runs on the Forensic Document Unit of POLRI Forensic Laboratory is particularly inefficient and effective as it still implements conventional filing systems. The recording of Official Report Documents is only in the general ledger. Based on these problems, the authors formulated "How to create an archiving information system that is expected to accelerate the process of searching, packing, storing records in a safe place". The objective of the research is to produce Information Archiving Information Archive Information System on Forensic Document Forensic Unit of POLRI Forensic Laboratory Center for better, faster, accurate and efficient.</p><p>With this system archive data processing archives more centralized and can help search and printing files / data quickly without having to search the archives are stacked, can avoid the loss of original archives. This is due to a scan of the original file that can be seen on this system. Based on the results of the test show that the system built successfully build the police investigation report Archive database. Thus it can be concluded that Official Report of Inspection Archiving System has been successful and ready to be implemented.</p><p> </p><p> </p>Rochani AniSaeful LukmanBheta Agus Wardijono
Copyright (c) 2019 International Journal of Science and Engineering
2019-04-152019-04-15131121910.12777/ijse.13.1.%pUTILIZATION OF GENCIL MOBILE APPLICATION IN IMPLEMENTING SMART CITY IN PONTIANAK
https://ejournal.undip.ac.id/index.php/ijse/article/view/21815
<span>Gencil is a mobile application developed in Pontianak to support the implementation of smart city. The aims of this study are; 1)describing the Gencil mobile application, 2)identifying the utilization of Gencil mobile application, 3)identifying the constraining factors in the development of Gencil mobile application in Pontianak. Primary data was obtained through in-depth interviews and questionnaires. The results show that Gencil mobile application consists of six features. The food price feature becomes the most popular one. Constraining factors for the development of Gencil mobile application are the lack of community participation and the inadequate infrastructure for the application’s development</span>Hidana Nur Jannah
Copyright (c) 2019 International Journal of Science and Engineering
2019-04-152019-04-15131202310.12777/ijse.13.1.%pSynthesis, Structural and Optical studies of SnO2 nanoparticles by Chemical precipitation method
https://ejournal.undip.ac.id/index.php/ijse/article/view/18479
<p class="Default"><span lang="EN-US">Tin Oxide (SnO<sub>2</sub>) nanoparticles have been prepared by chemical precipitation method. The prepared sample was characterized by X-ray diffraction, SEM with EDAX, UV- Vis absorption and Photoluminescence. From the X-ray diffraction patterns showed that the formation of pure SnO<sub>2</sub> with their average crystallite size are 17 nm. The crystalline product shows good morphology with meragre agglomeration by SEM images. Elemental compositions of SnO<sub>2</sub> nanoparticles were determined by EDX Spectroscopy. UV – Visible spectrum reveals that the transparency of nanoparticles over entire range. The Photoluminescence spectrum for the prepared samples was also recorded.</span></p>N Ganeshan S
Copyright (c) 2019 International Journal of Science and Engineering
2019-04-192019-04-19131242710.12777/ijse.13.1.%pThe Correlation between Total Ischemic Time with Length of Hospitalization : a Single Centre Report
https://ejournal.undip.ac.id/index.php/ijse/article/view/22836
<em>Kidney transplantation is recognized as an advanced modern therapeutic modality for patients with end stage renal failure. Cold Ischemic Time (CIT) has been found as an important independent risk factor for delay graft function (DGF) in kidney transplantation. Recent studies suggested that prolonged Warm Ischemic Time (WIT) may decrease graft’s survival in living kidney transplantation donor.This study aimed to evaluate the total ischemic time during recipient surgery and accessed its contribution for hospitalization time in kidney transplantation patients.This is an observational, cross sectional study. The datawas collected from medical record of patient who underwent kidney transplantation from 2014 until December 2018at Kariadi General Hospital Semarang. There were 28 patients, 18 were maleand 10 were female.Total ischemic time was compared with length of hospitalization. Data was analyzed with Spearman test in SPSS version 23. The study showed that total ischemic time was significantly correlated with hospitalization time (p < 0.001). However, donor’s age did not affect prolonged total ischemic time with p = 0.673, which is not significant (significant if p value < 0.05). In conclusion, total ischemic time has a significant correlation with hospitalization time. In contrary, no significant correlation between donor’s age and prolonged total ischemic time. </em>Eriawan Agung NugrohoMuhamad Azwin KamarDila Junita
Copyright (c) 2019 International Journal of Science and Engineering
2019-04-152019-04-15131283010.12777/ijse.13.1.%pAn Extensive Study of Thermo-electric Effect
https://ejournal.undip.ac.id/index.php/ijse/article/view/16637
<p>In well known thermo-electric effect (i.e. in thermo-couples generally used in college laboratories) the maximum temperature difference between the junctions approaches 100<sup>o</sup>C resulting in small magnitude of the current and potential difference produced. These are in the micro range. To have higher currents and potential differences a different type of experiment is to be performed.</p><p>In this work an experiment has been proposed where thermo-electric effect is observed more prominently for different temperatures of a hotter conductor while keeping another conductor fixed at lower temperature (generally the room temperature) making the temperature difference too high resulting in the current and potential difference to increase. </p><p>Experiment has also been performed to increase the thermo-electric power by joining a number of thermo-couples.</p>Mukul Chandra Das
Copyright (c) 2019 International Journal of Science and Engineering
2019-04-152019-04-15131313410.12777/ijse.13.1.%p