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Characterization of Cat’s Eye Dammar for Revision of Indonesia National Standard Rita K Sari; Nyoman J Wistara; Arif Wijayanto; Totok K Waluyo
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 11, No 1 (2013): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (253.547 KB) | DOI: 10.51850/jitkt.v11i1.106

Abstract

The present works was aimed to examine the concordance between trader quality classification and related SNI classification on dammar resin. The quality of six quality classes of dammar resin by trader classification was evaluated based on SNI 2900-1-2012 on visual classification and SNI 01-2900-1999 on physical and chemical characteristics, and then the resulting data were analyzed with ANOVA. The quality concordance of dammar resin based on trader classification with these of SNI for visual appearance and the size of agglomeration was 50 and 75-94%, respectively, and these of insolubility in toluene, melting point, ash content, and acid number were 61, 72, 11, and 100%, respectively. The characteristics of dammar resin for the a, b, and c quality classification were the same for the Krui traders, BKG Ltd., and WGM Ltd. However, they were different for the lower quality classification of d, e, and powder. It was also found the existence of dammar resin with characteristic values beyond the range of these established by SNI. SNI should not classify dammar resin quality based on visual appearance, but merely based on its physical and chemical characteristics. Physical and chemical characteristics values required by SNI should be revised.Key words: cat’s eye dammar, Indonesia National Standard, physical and chemical characteristics, quality classification, Shorea javanica
Sistem Pakar Mendiagnosa Penyakit Pencernaan Pada Manusia Menggunakan Metode Forward Chaining dan Certainty Factor Arif Wijayanto; Indah Susilawati
Journal Of Information System And Artificial Intelligence Vol. 2 No. 1 (2021): Journal of Information System and Artificial Intelligence Vol II, No I November
Publisher : Universitas Mercu Buana Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (444.071 KB) | DOI: 10.26486/jisai.v3i1.56

Abstract

Digestive disease is the most common disease and often found in health community centers. Digestive diseases attack organs in the digestive system which can interfere the functions of other systems. If ignored, it can make the person’s condition become more severe. To solve the problem, the researcher attempted to design a smart system to help people to early recognize digestive diseases such as GERD, dyspepsia, cholera, hepatitis, appendicitis, dysentery and hemorrhoids. Based on the symptoms fed by the patients into the system, the system will use the forward chaining method and certainty factor as an inference machine that will produce a disease diagnosis. Of 36 patient data tested on the system and matched with the experts’ validation, 34 of them matched. The system has an accuracy level of 94.4% of the tested data. The results are expected to provide an initial medium of consultation to help people diagnose digestive diseases. Keywords: Certainty Factor, Forward Chaining, digestive diseases, expert system.
Pemberdayaan Perempuan Melalui Kelompok Wanita Tani Di Giritirto Gunungkidul Tristanti Tristanti; Puji Fauziah; Akhmad Rofiq; Arif Wijayanto
Journal of Millennial Community Vol 4, No 2 (2022): September
Publisher : Universitas Negeri Medan - Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jmic.v4i2.37912

Abstract

Pemberdayaan perempuan menjadi salah satu tujuan SDG’s desa, sehingga keberadaan perempuan menjadi penting untuk dilibatkan dalam berbagai bidang kehidupan. Penelitian ini bertujuan untuk mendeskripsikan a) tahapan pemberdayaan perempuan melalui kelompok wanita tani di Giritirto Gunungkidul, b) hasil pemberdayaan perempuan melalui Kelompok Wanita Tani (KWT) di Giritirto Gunungkidul.Metode dalam penelitian ini menggunakan pendekatan kualitatif deskriptif. Teknik pengumpulan data menggunakan observasi, wawancara dan dokumentasi. Teknik analisis data meliputi penyajian data, reduksi data, dan penaikan kesimpulan. Keabsahan data menggunakan triangulasi sumber dan teknik.Hasil penelitian menunjukkan bahwa a) tahapan dalam pemberdayaan perempuan meliputi penyadaran terhadap kelompok sasaran, perencanaan program pemberdayaan, pelaksanaan program dan evaluasi program. b) Hasil dari pemberdayaan perempuan adalah perempuan memiliki akses, partisipasi, kontrol dan manfaat dalam pengolahan perkebunan tembakau.