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EFEKTIVITAS MODEL DISCOVERY LEARNING DITINJAU DARI PEMAHAMAN KONSEP MATEMATIS SISWA Rahmawati, Desy; Gunowibowo, Pentatito; Djalil, Arnelis
Jurnal Pendidikan Matematika Unila Vol 3, No 4 (2015): JURNAL PENDIDIKAN MATEMATIKA UNIVERSITAS LAMPUNG
Publisher : Jurnal Pendidikan Matematika Unila

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Abstract

This research aimed to know the effectiveness of discovery learning model viewed by student’s understanding of mathematical concepts. The population of this research was all students of grade 7th of SMP Muhammadiyah 3 Bandar Lampung in academic year of 2014/2015 that was distributed into 4 classes. The sample of this research was determined by purposive sampling technique. This research used one group pretest posttest design. The result of data analysis showed that discovery learning model was not effective viewed by student’s understanding of mathematical concepts.Penelitian ini bertujuan untuk mengetahui efektivitas model discovery learning ditinjau dari pemahaman konsep matematis siswa. Populasi penelitian ini adalah seluruh siswa kelas VII SMP Muhammadiyah 3 Bandar Lampung tahun pelajaran 2014/2015 yang terdistribusi dalam empat kelas. Sampel penelitian ini ditentukan dengan teknik purposive sampling. Penelitian ini menggunakan one group pretest posttest design. Hasil analisis data menunjukkan bahwa model discovery learning tidak efektif ditinjau dari pemahaman konsep matematis siswa.Kata kunci: discovery learning, efektivitas, pemahaman konsep
ANALISIS SPASIAL SEBARAN IPAL RS DI WILAYAH KOTA KENDARI BERDASARKAN EFEKTIVITAS PENGELOLAANNYA Rahmawati, Desy; Hemon, M. Tufaila; Yuniar, Nani
Jurnal Perencanaan Wilayah Vol 4, No 1 (2019)
Publisher : Universitas Halu Oleo

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This study aims to determine the quality of hospital wastewater that has gone through processing, toknow the effectiveness of Hospital Wastewater Treatment Plants in Kendari City, to know the distribution ofHospital Wastewater Treatment Plants based on the quality of their wastewater and develop managementstrategies. This type of research is qualitative descriptive with a survey approach. In this study, sampleswere taken in the inlet pipe section and the hospital wastewater treatment plant with BOD5, COD and TotalColiform test parameters. The results showed that based on the COD and BOD5 parameters of 8 (eight)hospitals that have only 1 (one) hospital wastewater treatment plant whose test results exceeded the qualitystandard based on KepmenLH no.05 of 2014. Total Coliform parameters were 8 (eight ) hospitals that havea Waste Water Treatment Plant have 2 (two) hospitals whose test results exceed the quality standards basedon KepmenLH no.05 of 2014. Effectiveness of hospital wastewater treatment plants based on BOD5 testparameters which have effectiveness between > 67-100% there are 6 (six) hospitals, the effectivenessbetween > 34 - 67% there is 1 (one) hospital and the effectiveness between 0 - 34% there is 1 ( one) hospital.Effectiveness based on COD parameters, effectiveness between > 67-100% there are 5 (five) hospitals,effectiveness between > 34 - 67% there is 1 (one) hospital and effectiveness between 0 - 34% there are 2(two) hospitals. Effectiveness based on total coliform parameters, effectiveness between > 67-100% thereare 3 (three) hospitals, effectiveness between > 34-67% there are 3 (three) hospitals and effectivenessbetween 0 - 34% there are 2 (two) hospitals. 2 (two) hospitals cannot evaluate their effectiveness becauseIPAL is not functioning / not functioning. Strategies that need to be carried out include managementstrategies, technical strategies and monitoring strategiesKeywords: Spatial Analysis, Management Effectiveness of Hospital Waste Water Treatment Plants
OPTIMALISASI KAPASITAS STASIUN KERJA DENGAN PENERAPAN THEORY OF CONSTRAINTS (TOC) Rahmawati, Desy; Puryani, Puryani; Nursubiyantoro, Eko
OPSI Vol 12, No 1 (2019): ISSN 1693-2102
Publisher : Jurusan Teknik Industri Fakultas Teknologi Industri UPN "Veteran" Yogyakarta

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Abstract

CV  Tunas Jaya Abadi adalah perusahaan yang memproduksi kotak makan  (wooden lunch box) berbahan baku kayu sengon laut (albasia). Produk yang dihasilkan berukuran 165 x 118 x 1,7 mm dan 193 x 118 x 1,7 mm. Proses produksi  yang dilakukan adalah make to order repetitif.  CV Tunas Jaya Abadi memiliki permasalahan dengan kapasitas produksi yang menyebabkan pesanan tidak terpenuhi. Lantai produksi terdapat stasiun kerja bottleneck pada stasiun kerja sanding/penghalusan. Penumpukan tersebut terjadi karena perbedaan waktu standar dan kapasitas maksimum pada stasiun kerja sebelumnya. Penelitian ini digunakan metode Theory of Constraints (TOC) untuk mengatasi stasiun kerja yang mengalami bottleneck.  Perhitungan kapasitas maksimum setiap stasiun kerja didapat hasil bahwa stasiun kerja 7 memiliki kapasitas lebih sedikit dibanding stasiun kerja sebelumnya. Pemecahan masalah bottleneck pada stasiun kerja 7 terdapat dua alternatif solusi, yaitu dengan overtime atau penambahan shift kerja. Setelah dianalisis dari permasalahan yang ada maka untuk mengatasi bottleneck pada stasiun kerja 7 dilakukan penambahan shift kerja dari 1 shift menjadi 3 shift kerja. Hasil dari penambahan shift kerja ini tidak terjadi bottleneck pada stasiun kerja 7.