Judul: Kajian pengaruh jenis kemasan polietilen dan polipropilen terhadap umur simpan buah Belimbing manis (Averrhoa carambola L.)
Abstrak: Star fruit is a fruit that spread out in Southeast Asia, including Indonesia. The shelf life of star fruit after postharvest are very short, so it is necessary to maintain the treatment method of star fruit quality to extend the shelf life of the fruit. One way to extend the star fruit shelf life is by package the fruit by choosing the right type of plastic. The type plastics that used in these experiments are low density polyethylene, high density polyethylene, and polypropylene. To find the right type of packaging in maintaining the quality of star fruit take several tests and storage at different temperatures in order to know the physical and chemical changes of the star fruit. Star fruit that has been packaged are stored in different temperatures (5 ° C, 10 °C, room temperature). The test that have been conducted is to determine the best packaging of respiration and the permeability test of plastic packaging color, hardness, soluble solids content, weights loss, and organoleptic. The results of several trials of star fruit during storage at 5 °C, 10 °C, and room temperature refers to the polypropylene plastic packaging that can maintain the quality of star fruit with a longer storage at optimum temperature of 10 °C.
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Judul: Pengaruh Perlakuan Pengemasan Belimbing (Averrhoa carambola L) dengan Penggunaan Bahan Pengisi terhadap Mutu Fisik Belimbing Selama Transportasi
Abstrak: Packaging starfruit (Averrhoa carambola L) becomes a critical factor in maintaining the physical quality of fruit due to vibration during transportation. The objective of this research was to asses the endurance of physical quality parameters of its fruit, such as mechanical damage, hardness, weight losses, and total solid soluble. The first treatment is used sliced filler paper, wood shavings, and sawdust for the filler material in the packs. The second treatment is arranged the starfruit position in packaging by using 2 different methods, namely, vertical and horizontal methods. The result has shown the starfruit which arranged horizontally and packaged with the sliced filler paper is the suitable treatment for packaging. After transportation simulation, the treatment showed 2% of mechanical damage, 0.555 Kgf of hardness and 7% obrix of total solid soluble. At the 8th day, showed 86% of mechanical damage, 0.426 Kgf of hardness, 3.76% of weight lose and 8.3% obrix of total solid soluble. The horizontal position of packaging can reduce the vibration better than the vertical one.
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Judul: Quantum Convolutional Neural Network (QCNN) for Classification Brain Tumor MRI Image
Abstrak: Penelitian ini bertujuan untuk mengembangkan model deteksi tumor otak menggunakan citra MRI dengan metode Quantum Convolutional Neural Network. Data yang digunakan adalah citra MRI otak yang terdiri dari citra tumor otak glioma, meningioma, hipofisis, dan negatif tumor yang dibagi kedalam data latih dan uji dengan rasio 80:20. Selanjutnya data latih dilakukan penyeimbangan dengan teknik oversampling. Dilakukan pengembangan model untuk mendeteksi tumor otak (biner), dan juga model untuk mengklasifikasikan jenis tumor otak (multiclass). Parameter yang digunakan dalam pengembangan model adalah jumlah ukuran filer = 2 dan kedalaman = 4, dengan qubit 4, dan dilatih dengan jumlah epoch sebanyak 10. Data akan diproses dengan metode Quantum Convolutional Neural Network yang terdiri dari lapisan quantum convolution, lapisan flatten, dan lapisan dense. Model multiclass mendapatkan akurasi 52%, setelah data latih diseimbangkan akurasi model meningkat menjadi 62%, sedangkan model biner mendapatkan akurasi 88%, setelah data latih diseimbangkan akurasi model meningkat menjadi 89%.
Keyword: Citra MRI, Klasifikasi Citra, QCNN, Tumor Otak