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Journal of Enviromental Engineering and Sustainable Technology

JEEST
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Published by Universitas Brawijaya

ISSN : 23563117 EISSN : 23563109 DOI : -

Core Subject : Social,

Environmental Science

JEEST is an interdisciplinary and refereed journal, addresses matters related to environmental engineering and sustainable technology. Its range of themes encompasses ecological studies, field research, empirical work and descriptive analyses on topics such as environmental systems, environmental policies and politics, environmental legislation, environmental impact assessment, air, water and land pollution, water and energy related issues, engineering innovations, development, technical solutions and sustainability technology. Other matters related to or which influence the international debate on sustainability will be also considered.

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Articles 8 Documents

Search results for , issue "Vol 2, No 2 (2015)" : 8 Documents clear

SISTEM PAKAR DIAGNOSA PENYAKIT SAPI POTONG DENGAN METODE NAIVE BAYES Indriana Candra Dewi; Arief Andy Soebroto; Muhammad Tanzil Furqon
Journal of Environmental Engineering and Sustainable Technology Vol 2, No 2 (2015)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Brawijaya

In order to produce quality beef, one of the important factors in maintenance of cattle is to maintain the health of livestock to stay fit. One way to provide an understanding of the breeders is to use expert system. An expert system is one of the artificial intelligence which is adopting of the expert knowledge that used to solve problem that usually can only be solved by expert in the field. Expert systems can be allowed to extend the working range of experts so that expert knowledge can be acquired and used anywhere. In this expert system use a Naive Bayes method as inference methods for diagnosing the disease. Types of diseases that can be recognized by expert system are 11 types of disease while symptoms that can be recognized the expert system are 20 types of symptom. The results of testing the accuracy of the 26 test case data, have generated the level of conformity percentage of 96,15%.

SISTEM PENDUKUNG KEPUTUSAN DETEKSI DINI PENYAKIT STROKE MENGGUNAKAN METODE DEMPSTER-SHAFER Deby Putri Indraswari; Arief Andy Soebroto; Eko Arisetijono Marhaendraputro
Journal of Environmental Engineering and Sustainable Technology Vol 2, No 2 (2015)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Brawijaya

Stroke is a neurological function disorders caused by impaired blood flow in the brain. Stroke is the third most common cause of death in developed countries, after heart disease and cancer. This causes a stroke to watch. Early prevention through medical examination needs to be done to reduce the high rate of risk of stroke. The detection of the risk of stroke is determined when knowing the criteria of risk factors is complete and structured. But sometimes the detection of the risk of stroke is difficult to determine if there are risk factors that have forgotten or not structured so that doctors can experience problems or ambiguous to make diagnosis. To overcome the problem of semi-structured pattern, it can be solved using decision support systems (DSS) with intelligent computing. SPK early detection of stroke constructed using methods Dempster Shafer. In the study can detect the level of risk of stroke is high risk, medium, and low with 8 input risk factors. Based on the data used in this system is obtained accuracy of 90%. So that it can be concluded that SPK is constructed with Dempster Shafer method to function well for detecting stroke.

OPTIMASI FUNGSI KEANGGOTAAN FUZZY TSUKAMOTO MENGGUNAKAN ALGORITMA GENETIKA UNTUK PENENTUAN HARGA JUAL RUMAH Evi Nur Azizah; Imam Cholissodin; Wayan Firdaus Mahmudy
Journal of Environmental Engineering and Sustainable Technology Vol 2, No 2 (2015)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Brawijaya

Secara umum, penentuan harga jual rumah ditentukan oleh dua bagian yaitu bagian teknik dan bagian keuangan. Namun seringkali harga jual yang didapatkan pada bagian ini berbeda sehingga menyebabkan manager melakukan perhitungan ulang dari kedua hasil tersebut. Untuk menyelesaikan permasalahan tersebut, maka perlu dibuat suatu sistem yang dapat menghitung harga jual secara akurat. Dalam paper ini, harga jual rumah ditentukan menggunakan sistem inferensi fuzzy Tsukamoto. Namun penggunaan logika fuzzy saja masih memungkinkan mendapatkan error yang relative besar. Untuk memperkecil nilai error maka digunakan algoritma genetika untuk menentukan batasan nilai fungsi keanggotaan yang sesuai. Dari pengujian yang dilakukan didapatkan kesimpulan bahwa penggunaan algoritma genetika mampu memperkecil error secara signifikan.

MULTI GEOPHYSICAL OBSERVATIONS AT BLAWAN - IJEN VOLCANO GEOTHERMAL COMPLEX FOR REGIONAL DEVELOPMENT Sukir Maryanto; Agus S Wicaksono; Anjar P Azhari; Cinantya N Dewi
Journal of Environmental Engineering and Sustainable Technology Vol 2, No 2 (2015)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jeest.2015.002.02.7

Geothermal resource investigation by using multi geophysical observation was accomplished for Blawan-Ijen geothermal system. Geological and surface investigation found about 21 hot springs have been found in Blawan area with the surface temperature ranged from about 40oC-55oC. Based on resistivity and GPR data known that the underground seepage of hot water following the fault direction. This fault structure is identified based on the high distribution of microseismicity and thermal infrared remote sensing (TIR) analysis which associated with high land surface temperature (LST). Meanwhile, the heat source of Blawan - Ijen geothermal system are found in the southwest part based on high magnetic anomaly which represents the igneous rocks. All methods used shows the results indicating that Blawan-Ijen volcano complex is an interesting area for geothermal energy development and suitable for pilot project on regional development of volcano geothermal region.

OPTIMASI DISTRIBUSI PUPUK MENGGUNAKAN EVOLUTION STRATEGIES Fauziatul Munawaroh; Wayan Firdaus Mahmudy
Journal of Environmental Engineering and Sustainable Technology Vol 2, No 2 (2015)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Brawijaya

The purpose of distribution is accelerating the delivery and equity of goods in various regions. However, the most common problem especially in fertilizer distribution is a high cost distribution in delivery caused by the route and vehicle selection used are less precise and less to maximize the capacity of the vehicle. Several researches have been done using a variety of methods to minimize distribution costs, one of which is the Evolution Strategies algorithm. This research uses permutation representation which is divided into two segments for representate solution. This research using (μ + λ) ES cycle, elitism selection and exchange mutation. Based on this research results, parameters with the best fitness value is the population size of 80, the number of offspring 5, the number of generations of 80, and the composition segments are 30% of segment 1, 20% of segment 2, and 50% for both segments.

PENGARUH PENAMBAHAN SERBUK LOGAM/NON-LOGAM TERHADAP KEKUATAN DAN PERILAKU RAMBAT RETAK PADA SAMBUNGAN LEM EPOXY Khairul Anam
Journal of Environmental Engineering and Sustainable Technology Vol 2, No 2 (2015)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Brawijaya

Epoxy adhesive has been used widely in automotive and aircraft industry because it has the characteristics of a good joint in the structure of the component. The addition of the powder material on epoxy adhesive affect to the crack propagation behavior on the joint. It also affects to the peel and shear strength of the joint. A real experimental study of peeling and tearing test was used in this study. It aims to determine the effect of the type of powder material on crack propagation behavior and also peel and shear strength of the adhesive joint. The independent variable of this study is without powder and with powders (aluminum, iron ore, silica). The dependent variable is the crack propagation behavior and peel and shear strength. The results of the investigation shown that the addition of powder material either metal or non-metal on the epoxy adhesive joint affect on the maximum force and the displacement. In addition, it can also increase the peel and shear strength. In the peeling test, mixture of adhesive and cohesive fracture was occurred. And in the tearing test, fracture adhesive was dominated.

PENCARIAN PASAL PADA KITAB UNDANG-UNDANG HUKUM PIDANA (KUHP) BERDASARKAN KASUS MENGGUNAKAN METODE COSINE SIMILARITY DAN LATENT SEMANTIC INDEXING (LSI) Setyoko Yudho Baskoro; Achmad Ridok; Muhammad Tanzil Furqon
Journal of Environmental Engineering and Sustainable Technology Vol 2, No 2 (2015)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Brawijaya

Indonesia is a country of law. As law states, Indonesian have regulations that govern the relationship between the communities, one of them is criminal law. Set of rules of criminal law is written in the Kitab Undang-undang Hukum Pidana (KUHP), which contains hundreds of clause which regulate the relationship between the community based on values, norms, and specific rules that focuses on the interests of the public. In this paper, information retrieval used to search the clause of the KUHP based on a description of the crime, using Latent Semantic Indexing (LSI). LSI adopts techniques in mathematical dimension reduction process Singular Value Decomposition (SVD). This system use 60 clause as training data, and 6 query or crime description as test data. In each of the data clause of the KUHP contained data such as clause number, clause, and the clause contents. The system will calculate and determine the relevant clause is based on query or description of the crimes that has been entered. Cosine similarity used to calculate the similarity or proximity clause KUHP with query. The performance of the system is shown by the test results of Mean Average Precision (MAP) value at each k-rank is 5, 10, 20, 30, 40, 50, and 59, with the highest performance is in k-rank 40 with MAP 0.8944.

STUDY OF THE MILKFISH (Chanos chanos) CULTIVATION ON POND REARING CONTAMINATED Cd AND Pb AT KALANGANYAR, SIDOARJO REGENCY EAST JAVA TOWARDS THE HISTOPATHOLOGY OF HEPAR, KIDNEY AND GILLS Maftuch Maftuch; Marsoedi Marsoedi; Vendrita Damayanti Putri; Mohammad Holil Lulloh; Febi Kesid Haryo Wibisono
Journal of Environmental Engineering and Sustainable Technology Vol 2, No 2 (2015)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Brawijaya

The objective of this research was conducted to study heavy metals content of Cadmium (Cd) and Plumbo (Pb) in cultivation rearing of milkfish (Chanos chanos) in fishpond at Kalanganyar Sidoarjo towards the effect of histopathological gills, heart, and kidney of milkfish. Research and sampling of water and milkfish carried out in the Kalanganyar village of Sedati District, Sidoarjo. The method used was descriptive method. Data was analyzed by ANOVA, LSD, and regression analysis based on the value of scoring. The result of the research showed that the water conten of Cd was <0,0024 mg/L and Pb was <0,0044 mg/L. And in sediment content of Cd was 1,079 mg/L and Pb was undetected. The result of histopatological investigatiaon of milkfish organs showed that: 1. Gills demage was hyperplasia, fusion and necrosis. 2. Hepar demage was hipertropy, kongesti, and cells degeneration. 3. Kidney demage was atrophy, cloudy swelling and glomerular hyalinization. The results of water quality investigation was temperature: 29,2 oC; pH: 7,5; DO: 6,2 mg/L; and salinity: 17,8 ppt. Keywords: Histopatology, Gill, Heart, Kidney, Milkfish, Heavy metals Cd and Pb.

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