International Journal of Natural Science and Engineering最新文献

{"title":"Pengembangan Multimedia Interaktif Model Games untuk Meningkatkan Respon Mahasiswa pada Mata Kuliah Organisasi dan Arsitektur Komputer","authors":"Kadek Agus Hendra Pujawan","doi":"10.23887/ijnse.v2i1.13909","DOIUrl":"https://doi.org/10.23887/ijnse.v2i1.13909","url":null,"abstract":"The aims of this study were (1) to create an interactive multimedia by using games which is proper used by Politeknik Ganesha Guru students in computer organization and architecture course. (2) to know the feasibility level of interactive multimedia by using games according to content expert, media expert and learning design expert in computer organization and architecture course. (3) to know the students’ response to the development of interactive multimedia by using games in computer organization and architecture course. This study used Dick and Carey as the development model which invoved first semester students of Politeknik Ganesha Guru in Informatics Management Study Program. Based on the result of the data analysis from the content feasibility aspect made by the content expert indicated that the product is in accordance with the SAP of Computer Organization and Architecture courses. Tests conducted by media experts obtained a calculation result of 87% which is being in good qualification. Tests conducted by the design of learning experts obtained a calculation result of 88% which are in good qualification. The user/lecturer gave a good response. Field trials conducted got a result of 90% calculation which are in excellent qualification","PeriodicalId":181108,"journal":{"name":"International Journal of Natural Science and Engineering","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116592080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analisis Kuantitatif Kadar Nitrit dalam Produk Daging Olahan di Wilayah Denpasar Dengan Metode Griess Secara Spektrofotometri","authors":"Nur Habibah, I. S. Dhyanaputri, I. W. Karta, Ni Nyoman Astika Dewi","doi":"10.23887/ijnse.v2i1.13907","DOIUrl":"https://doi.org/10.23887/ijnse.v2i1.13907","url":null,"abstract":"Nitrite is one of important food additive that used as a preservative and curing agent for the meat product. Since the adverse effect of nitrites to the human health has been reported, the government regulated maximum allowable nitrite content in meat product is 125 mg/kg. Hence, continuous monitoring of the existence of nitrite, especially in the meat products are important to conducted. Quantitative analysis of nitrite in the meat product, especially sausage has been described. The spectrophotometric measurement of the nitrite contents was conducted by using Griess method. The absorbance of both standard solution and sample carried after 30 minutes at the maximum wavelength 520 nm. A linier calibration curve was obtained in the range of 0.1-0.5 ppm, with the R2 value is 0.997. Subsequently, the method was applied to determine the nitrit contents in sausage samples. The spectrophotometric determination showed there were 6 samples have nitrite contents more than maximum allowable nitrite content in the meat product.","PeriodicalId":181108,"journal":{"name":"International Journal of Natural Science and Engineering","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126763497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Kajian Sistem Pengolahan Pisang Sale dengan Menggunakan Gas Elpiji","authors":"Naza Ruddin","doi":"10.23887/ijnse.v2i1.13910","DOIUrl":"https://doi.org/10.23887/ijnse.v2i1.13910","url":null,"abstract":"Bananas sale or pisang sale  is a popular traditional food in Aceh  and its production  mostly comes from the area of northern Aceh and east Aceh. Traditional banana processing process is using fumigation method by wood fuel and coconut shell. Traditional banana sale is dark brown and tastes is less good. The banana processing process here uses a heating cabinet with a heating method and with an average temperature of 90-70 ° C for 14 hours. The purpose of the study was to obtain the optimal temperature used in the processing of banana sale in order to know the quality and good quality of on the traditional way. The preheating process with high temperature is to accelerate the decrease in water content in bananas so that the drying process becomes faster. The quality of banana sale is produced with a reddish color and very sweet because of glucose in the banana. The cooking process is by using LPG gas. The benefits of using LPG gas are because it is environmentally friendly, does not cause air pollution and the result of LPG combustion does not leave the smell, so it is suitable for use as fuel or raw materials for industry","PeriodicalId":181108,"journal":{"name":"International Journal of Natural Science and Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125577000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Kajian Sistem Pengolahan Minyak Kelapa Murni (Virgin Coconut Oil) dengan Metode Pemanasan","authors":"Teuku Zulfadli","doi":"10.23887/ijnse.v2i1.13911","DOIUrl":"https://doi.org/10.23887/ijnse.v2i1.13911","url":null,"abstract":"Pure coconut oil or Virgin coconut oil is a modification of making coconut oil to produce products with the lower water and acid level , clear and has a long shelf life of 12 months. In terms of economics, pure coconut oil has higher selling price compared to traditional coconut oil by heating coconut milk or precipitating coconut milk in a long time so as to produce rancid odor and poor quality due to high water content and free fatty acid. The purpose of this study was to obtain pure coconut oil with lower water content and free fatty acids according to SNI. There are 3 methods of making pure coconut oil that is method of fermentation, induction and heating, while the method was used in this research is the method of heating.  Heating method which is tested by gradual heating or once heating, for gradual warming done preheat with temperature 60-110 ° C with 9 hours of drying and heating time with 60 ° C temperature variations (sample A), 70 ° C (sample B), 80 ° (sample C) and 5 hours, 4 hour and 3 hour drying time. The results showed that drying air temperature had an effect on product quality and length of drying time. The results of the calculation and testing showed the most effective treatment that is on the sample A with water content and free fatty acid content of the lowest reached 0.08% and 0.10%.","PeriodicalId":181108,"journal":{"name":"International Journal of Natural Science and Engineering","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134029342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"KAJIAN KESESUAIAN LAHAN BUDIDAYA TANAMAN OBAT DENGAN APLIKASI SISTEM INFORMASI GEOGRAFIS (SIG) DI KAWASAN SUKU SAMBORI KABUPATEN BIMA","authors":"Juna idin, Sugeng Utaya, I. K. Astina, Budi Handoyo","doi":"10.23887/ijnse.v1i3.12940","DOIUrl":"https://doi.org/10.23887/ijnse.v1i3.12940","url":null,"abstract":"This research can provide the answer that the potential of the local area is quite potential and needs to be utilized wisely for the welfare of the community. The purpose of this research is to know the potential of medicinal plant cultivation land and to obtain data base on the suitability of medicinal plant cultivation area with application of Geographical Information System (GIS) as a medicinal plant area in Sambore Tribe Area. In this research using survey method with MLA (Multidiciplinaire Landscape Assessment) approach is a method to determine \"what resources are most important to society. The research instruments that we present are tools used in research processes such as GPS, benchmarking, thermometer, geological compass, stpowatch, sechi disk, salinometer, and GIS data analysis software and supported by data collection methods that are observation, documentation and experimental methods so this research can be done well","PeriodicalId":181108,"journal":{"name":"International Journal of Natural Science and Engineering","volume":"336 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116654842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PENGEMBANGAN APLIKASI PENGENDALIAN PERSEDIAAN OBAT DI APOTEK MENGGUNAKAN METODE HYBRID PERIODIC ORDER QUANTITY - MOVING AVERAGE","authors":"Gede Aditra Pradnyana, I. Sunarya, D. Divayana","doi":"10.23887/ijnse.v1i3.12941","DOIUrl":"https://doi.org/10.23887/ijnse.v1i3.12941","url":null,"abstract":"A pharmacy is a place of health service but indirectly also an effort to get the benefit. From the business point of view, of course, the pharmacy requires a system of processing inventory of goods, especially drugs - drugs in order to avoid losses. One of the pharmacies that have not optimally utilized the technology is at Apotek Karunia Asih located in Canggu Badung Bali. To overcome the problem of inventory control, at Apotek Karunia Asih requires inventory control application. The purpose of this research is to develop inventory control application with hybrid periodic order quantity - moving average method in Apotek Karunia Asih which gives benefit to the controlling of goods in pharmacies so that the goods and drugs sold in another are no longer past the expiration date, dead stock, stacking or stock shortages. Development of inventory control application with hybrid periodic order quantity - moving average method in Apotek Karunia Asih uses SDLC (Software Development Life Cycle) process to describe the stages in software development. SDLC process used is waterfall model. Waterfall model is a model that is systematic and sequential in building software, starting from the analysis, design, coding, testing, and support or maintenance. Implementation of this research is applied by using PHP programming language with the help of Codeigniter framework. For the testing process, five (5) test process stages are performed: (1) white box test which states that the source code implementation is appropriate and there is no error, (2) black box test to find out whether all software functional is appropriate, (3) test the suitability of the system to find out the correctness of the calculation process performed by the application, (4) the user response test which states the application and the methods used are very appropriate in controlling the supply of drugs in pharmacies; (5) the previous training test on forecasting that the previous training score will be used to predict the need is 6 because it has the smallest MAPE and MSE so that the forecasting results can be in accordance with the actual data.","PeriodicalId":181108,"journal":{"name":"International Journal of Natural Science and Engineering","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126867842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PLANT SPECIES MAPPING AND DENSITY IN THE VILLAGE FOREST OF PENGLIPURAN, BANGLI, BALI, INDONESIA AND ITS USE IN LEARNING MEDIA","authors":"N. Wijana, I. Setiawan","doi":"10.23887/ijnse.v1i3.12937","DOIUrl":"https://doi.org/10.23887/ijnse.v1i3.12937","url":null,"abstract":"The objectives of this research are to acknowledge the relative density index of plant species and the distribution of the plant species in the village forest of Penglipuran, Bangli, Bali, Indonesia, and (2) the utilization of his research results in instructional media. The population of this study is the whole area of Penglipuran village forest and all the plant species in it. The samples of this study are all plant species covered in 100 quadratics of size 10x10m. The sampling technique used is systematic sampling. The data are analyzed descriptively. Population utilization of research result in instructional media use student of Department of Biology Education FMIPA Undiksha, Semester V class A, B, and C. The sample is student class V class A with number of student counted 25 people. The sampling technique is by using random sampling technique. The method of data collection is interview and observation. The data are analyzed descriptively. Result of this research are (1) The plant species distribution mapping result shows that the plant species have wide, medium, and narrow distribution. (2) From the 34 species which are included into 21 families, 10 of them have the highest relative density index. (3) The results of this research can be used as a media in learning Biology, especially in Plant Ecology","PeriodicalId":181108,"journal":{"name":"International Journal of Natural Science and Engineering","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125001884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PENDETEKSIAN OBJEK ROKOK PADA VIDEO BERBASIS PENGOLAHAN CITRA DENGAN MENGGUNAKAN METODE HAAR CASCADE CLASSIFIER","authors":"Kadek Oki Sanjaya, G. Indrawan, Kadek Yota Ernanda Aryanto","doi":"10.23887/ijnse.v1i3.12938","DOIUrl":"https://doi.org/10.23887/ijnse.v1i3.12938","url":null,"abstract":"Object detection is a topic widely studied by the scientists as a special study in image processing. Although applications of this topic have been implemented, but basically this technology is not yet mature, futher research is needed to developed to obtain the desired result. The aim of the present study is to detect cigarette objects on video by using the Viola Jones method (Haar Cascade Classifier). This method known to have speed and high accuracy because of combining some concept (Haar features, integral image, Adaboost, and Cascade Classifier) to be a main method to detect objects. In this research, detection testing of cigarettes object is in samples of video with the resolution 160x120 pixels, 320x240 pixels, 640x480 pixels under condition of on 1 cigarette object and condition 2 cigarettes object. The result of this research indicated that percentage of average accuracy highest 93.3% at condition 1 cigarette object and 86,7% in the condition 2 cigarette object that was detected on the video with resolution 640x480 pixels, while the percentage of accuracy lowest 90% at condition 1cigarette object, and 81,7% at the condition 2 cigarette objects, detected on the video with the lowest resolution 160x120 pixels. The percentage of average errors at detection cigarettes object was inversely with percentage of accuracy. So that the detection system is able to better recognize the object of the cigarette, then the number of samples in the database needs to be improved and able to represent various types of cigarettes under various conditions and can be added new parameters related to cigarette object","PeriodicalId":181108,"journal":{"name":"International Journal of Natural Science and Engineering","volume":"451 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115617387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MODEL PENGUKURAN TINGKAT KEPERCAYAAN PELANGGAN (ONLINE TRUST) TERHADAP SITUS E-COMMERCE (Studi Kasus pada Pelanggan E-Commerce di Provinsi Bali)","authors":"I. Putra, Gede Rasben Dantes, I. M. Candiasa","doi":"10.23887/ijnse.v1i3.12939","DOIUrl":"https://doi.org/10.23887/ijnse.v1i3.12939","url":null,"abstract":"Penelitian ini bertujuan untuk mengetahui model pengukuran tingkat kepercayaan pelanggan terhadap situs e-commerce. Langkah awal yang dilakukan yaitu identifikasi faktor-faktor yang mempengaruhi kepercayaan pelanggan melalui studi literatur dan studi empirik untuk menentukan model analisis terhadap kepuasan pelanggan. Faktor yang mempengaruhi kepercayaan pelanggan untuk bertransaksi secara online yaitu pengetahuan konsumen terhadap e-commerce, reputasi penjual, resiko dalam transaksi, kemudahan penggunaan e-commerce, jaminan sistem, sikap/perilaku terhadap sistem dan sistem keamanan. Populasi dalam penelitian ini adalah masyarakat Provinsi Bali menggunakan metode purposive sampling dan snowball sampling dengan kriteria responden pernah berkunjung dan melakukan transaksi di e-commerce yang ada di Indonesia lebih dari 3 kali. Instrumen penelitian berupa kuesioner dengan data interval berskala 5 Likert. Instrumen terlebih dahulu diuji validitas isi dengan metode Robert Gregory, validitas empiris menggunakan rumus product moment, reliabilitas instrument menggunakan Cronbach’s Alpha, dan menghasilkan 59 pernyataan yang dapat digunakan untuk pengambilan data. Jumlah responden yang digunakan dalam penelitian ini adalah sebanyak 126 responden. Teknik analisis data, pengujian hipotesis dan pengujian model menggunakan metode Structural Equation Modeling dengan bantuan aplikasi SPSS AMOS 21. Hasil penelitian ini melalui pengujian hipotesis menunjukkan bahwa pengetahuan tentang situs e-commerce dan perlindungan keamanan berpengaruh negatif dan tidak signifikan terhadap kepercayaan pelanggan. Resiko, kemudahan e-commerce, jaminan sistem dan sistem keamanan bukan menjadi sesuatu yang penting untuk dipertimbangkan dalam meningkatkan kepercayaan pelanggan karena pengaruhnya tidak signifikan. Reputasi yang dirasakan dan sikap merupakan hal yang perlu diperhatikan dan paling berpengaruh terhadap kepercayaan pelanggan pelanggan. Hasil penelitian ini kemudian diuji menggunakan goodness of fit index dan menghasilkan bahwa model penelitian tersebut dapat diterima dan dapat digunakan untuk meningkatkan keinginan pelanggan untuk bertransaksi online","PeriodicalId":181108,"journal":{"name":"International Journal of Natural Science and Engineering","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121934633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PEMETAAN AKTIFITAS KONSUMEN TOKO MENGGUNAKAN METODE BACKGROUND SUBTRACTION","authors":"I. Listartha, G. Indrawan, Kadek Yota Ernanda Aryanto","doi":"10.23887/ijnse.v1i2.12468","DOIUrl":"https://doi.org/10.23887/ijnse.v1i2.12468","url":null,"abstract":"This study aims to heat mapping the consumer’s movement using background subtraction techniques. The mapping is built using the coordinate information obtained from the consumer location that detected from the video where the separation of the consumer object and the background is done by background subtraction technique. Tests were performed on eleven video of consumer data activity that have different activity characteristics that were created using Microsoft PowerPoint application. Simulated activities include walking straight, staying, walking back to the path that had been passed, pacing, disturbance from another object, the influence of color, the consumer walks meet and coincide with other consumers. From the test of video discovery is obtained accuracy of 96.07% for the detection process of consumer movement, where the lack of detection process occurs due to the absence of techniques used to perform the introduction of characteristics of consumer objects. The mapping process is very much in line with the number of coordinates generated in the motion detection process, but the inaccurate detection of movement in the entrance and exit areas makes the coordinates high. By filtering with Region of Interes (ROI) in the survey area, creating disturbances in the area of doors and areas with objects that produce movements other than consumers can be eliminated.","PeriodicalId":181108,"journal":{"name":"International Journal of Natural Science and Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130472970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}