Portal E-Journal Politeknik Negeri Bengkalis
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    1494 research outputs found

    Klasifikasi Tumor Otak Menggunakan Convolutional Neural Network

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    Metode klasifikasi citra MRI otak yang digunakan pada penelitian ini adalah Deep Learning dengan Convolutional Neural Network (CNN) dengan 2 model skema arsitektur CNN. Model skema 1 terdapat 2 max pooling layer dan 2 hidden layer, sedangkan model skema 2 terdapat 3 max pooling layer dan 4 hidden layer.  Dataset yang digunakan memuat citra MRI otak manusia dengan total 7023 citra, dengan rincian 1621 Glioma, 1645 Meningioma, 1757 Pituitary, dan 2000 Notumor. Evaluasi F1-Score model skema 1 dan skema 2 berturut-turut: 96% dan 97%, Sedangkan untuk nilai Accuracy yaitu 98%. Hal ini menunjukkan bahwa nilai F1-Score dan Accuracy, model skema 2 lebih baik. Untuk menguji dataset digunakan 10 fold cross-validation menghasilkan nilai rata-rata Accuracy, F1-Score, Precision, dan Recall berturut-turut 0,8520, 0,8470, 0,8493 dan 0,8504, dengan standar deviasi yang kecil, yaitu berturut-turut 0,0352; 0,0346; 0,0337 dan 0,0353 yang menunjukkan bahwa penyimpangan sebaran nilai semakin mendekati nilai rata-ratanya. nilai metrik F1-score dan accuracy berturut-turut, 97,47% dan 97,39%. Hasil accuracy penelitian ini lebih tinggi dibandingkan dengan beberapa penelitian sebelumnya, yakni dari [1], [2], [3], [5], [7], dan [8], berturut-turut: 94.39%, 97.54%, 97.18%, 96.08%, 96,36%, dan 95.55%

    Peningkatan Sarana Produksi dan Pengolahan Makanan Ringan (Cahaya Ummi) Untuk UMKM Sektor Manufaktur

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    Renovasi rumah produsi UMKM Cahaya Ummi, dengan melakukan Renovasi atap yang dirombak menjadi dua tingkat dan perluasan rumah produksi menjadi 7m x 7m

    The Influence of Cultural Pride, Perceived Price, and Perceived Quality on Prestige and Brand Loyalty on Indonesia’s Batik

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    Fashion is something that can’t be separated from human life. Batik can be categorized as a form of fashion that originated in Indonesia. Batik itself is a traditional Indonesian fabric that originated on the island of Java. Batik cloth has unique characteristics that other types of cloth do not have. Over time, batik has become increasingly in demand in the community because it can be used for formal and non-formal clothing. The aim of this study is to examine the impact of cultural pride, perceived price, and perceived quality on prestige, as well as the relationship between prestige and brand loyalty on Batik Keris. Batik Keris is known as one of the biggest batik companies in Indonesia. The data for this study was collected through a Google Form survey. The researcher gathered responses from 154 individuals residing in Surabaya, aged above 17 years old, who had purchased Batik Keris fashion products for at least the last year and had a monthly expenditure of ≥Rp. 1.200.000,00. The collected data was then processed using Smart PLS 3.0 and analyzed through the Structural Equation Model (SEM) method. The findings of the study indicate that cultural pride doesn’t have any influence on prestige, whereas perceived price and perceived quality have a significant influence on prestige. Additionally, prestige also exerts a significant influence on brand loyalty

    STUDI PERENCANAAN DESAIN FENDER MULTI TUBULAR INOVASI DARI FENDER TYPE CSS DI PELABUHAN SEMAYANG

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    Fender merupakan fasilitas yang ada pada sisi - sisi dermaga yang berguna untuk tempat sandar nya kapal pada Pelabuhan Semayang fender tersebut telah terjadi kerusakan. Tujuan dalam penelitian ini adalah melakukakan inovasi dari fender CSS 1000. Metode dalam penyelesaian penelitian ini adalah dengan metode elemen hingga dengan melakukan pengolahan data primer yaitu melakukan pengamatan langsung di lapangan sedangkan data sekunder didapat dari data kapal, angin, arus dan pasang surut air laut dengan menggunakan website BMKG serta menggunakan studi literatur yang berkaitan. Pemilihan sistem Fender berdasarkan perhitungan energi benturan kapal terhadap dermaga Semayang Balikpapan. Sehingga didapatkan hasil perhitungan energi benturan pada Fender sebesar 261.307 kNm aliternatif instalasi jarak tiap Fender sebesar 15.5, adapun inovasi yang dilakukan yaitu desain yang memperhatikan air flow pada rubber membentuk model multi rongga atau multi tubular yang aerodynamic dan di desain menggunakan Ansys Workbench Static Structural, yang unggul dalam simulasi total deformation, dan strain energy dan ter-eliminasi pada simulasi equivalent stress

    The Effect of Trade Openness, Foreign Direct Invest-ment (FDI) and Inflation on Gross Regional Domestic Product (GRDP) in Riau Province 2003 - 2022

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    This research aims to investigate the effect of Trade Openness, Foreign Direct Investment (FDI), and Inflation on the Gross Regional Domestic Product (GRDP) in Riau Province 2003-2022. The analytical method employed is multiple linear regression analysis, specifically the Ordinary Least Squares (OLS) method, using E-Views 12 software. The simultaneous analysis results show that the variables Trade Openness, Foreign Direct Investment (FDI) and Inflation collectively have a significant impact on the GDP in Riau Province 2003-2022. Meanwhile, the partial analysis indicates that the variables Trade Openness, Foreign Direct Investment (FDI) have a positive effect and inflation has a negative effect on the GRDP in Riau Province

    A TOPSIS Framework for Supplier Selection Problem

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    The Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) stands as a widely recognized and extensively utilized method for addressing the complexities of supplier selection across diverse industries. Acknowledged for its systematic framework, TOPSIS serves as a valuable aid for decision-makers in meticulously evaluating and ranking potential suppliers, taking into account a variety of criteria. This paper provides a exploration of the TOPSIS framework in the field of supplier selection, aiming to empower decision-makers with insights to effectively utilize TOPSIS as a strategic tool. The objective is to facilitate informed and optimal supplier selections. The findings can contribute to both theoretical understanding and practical guidance, emphasizing the strategic significance of TOPSIS in decision-making

    PENGKLASTERAN DAN SEGMENTASI KARAKTERISTIK DONATUR SEDEKAH DARING DENGAN TEKNIK PENAMBANGAN DATA

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    Dalam era kemajuan filantropi dan platform digital yang semakin berkembang, PPPA Daarul Qur’an aktif dalam mengumpulkan dana amal online, terutama zakat, sedekah, dan wakaf (ziswaf). Selain itu, mereka juga terlibat dalam program dakwah dan sosial, dengan fokus pada pembangunan masyarakat melalui tahfizhul Qur'an, beasiswa, bantuan kemanusiaan, dan kesehatan. Tantangan utama yang dihadapi adalah kesulitan dalam menentukan profil donatur potensial dan menyasar program ziswaf dengan tepat. Dalam penelitian ini, segmentasi data donatur dilakukan menggunakan algoritma Fuzzy C-Means (FCM) dan DBSCAN. FCM digunakan untuk mengelompokkan data berdasarkan kesamaan dengan pusat cluster, sementara DBSCAN mengidentifikasi kelompok berdasarkan kepadatan spasial. Kedua metode ini diharapkan menghasilkan clustering data yang lebih baik. Validasi SSE, Calinski-Harabasz Index (CH), Silhouette Coefficient, dan Davies Bouldin Index (DBI) digunakan untuk memperoleh nilai K optimal.Variabel LRFM digunakan untuk menggambarkan perilaku donatur selama berdonasi. Evaluasi menunjukkan SSE FCM: 4563140439.7347, CHI: 0.3128562606910544, SS: 0.08061440564597909, dan DBI: 9.910899528742423. Evaluasi DBSCAN menunjukkan CHI: 3237127.1389106703, SS: 0.8479515063332151, dan DBI: 2.1939426200975047. DBSCAN tampak memberikan hasil klasterisasi yang lebih baik, dengan pemisahan dan homogenitas klaster yang lebih baik dibandingkan FCM

    ANALISIS BIAYA PERAWATAN DAN PERBAIKAN JEMBATAN SEI. JANGKANG KEC. BANTAN

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    This research is to analyze the damage that has occurred to the structural components of the bridge and estimate the costs of maintaining and repairing the bridge, so that what handler should be done based on the view of the damage to the bridge elements and costs economical for the bridge under study. Much research is guided by using numbers, starting from data collection, as well as the appearance of the results of the analysis of bridge maintenance and repair costs. Bridges that are handled can be more relieved in terms of costs and the service life of the bridge can be fulfilled. From the results of the study, it was obtained an estimate of the cost of maintaining/repairing the Sei bridge. The anchors amount to Rp.194,000,000.00 and for bridge maintenance costs which are carried out every 5 years amount to Rp.280,399,790.72 for the next 20 years

    THE EFFECT OF PROMOTION AND STORE ATMOSPHERE ON IMPULSE BUYING WITH SHOPPING EMOTION AS AN INTERVENING VARIABLE (EMPIRICAL STUDY OF MALL SKA PEKANBARU VISITORS)

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    This study aims to determine the effect of promotion and store atmosphere on impulse buying with shopping emotion as an intervening variable at Mall SKA Pekanbaru. The method used in this study is a quantitative approach by collecting primary data through distributing questionnaires and secondary data through document. The samples in this study were people who had visited or shopped at the Mall SKA Pekanbaru. The sampling technique this study was purpossive sampling of 100 respondent. Processing data study uses Application SPSS Program 25. The results of this research show that promotion has a positive and significant effect on shopping emotion, Store atmosphere has a positive and significant effect on shopping emotion. Promotion has no positive and significant effect on impulse buying, store atmosphere has a positive and significant effect on impulse buying, and shopping emotion has a positive and significant effect on impulse buying. Then promotion has a positive and significant effect on impulse buying through shopping emotion as an intervening variable, which is followed by store atmosphere having a positive and significant effect on impulse buying through shopping emotion as an intervening variable.Keyword : Promotion, store atmosphere, shopping emotion, impulse buyin

    Dampak Penerapan Bahan Komposit Laminat E-Glass Epoksi terhadap Pola Retak Permukaan Dinding Silinder

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    Penelitian ini bertujuan untuk memperoleh pola kerusakan pada spesimen beton kolom silinder (BKS) yang diperkuat dengan komposit laminat e-glass epoxy (KLG) berdasarkan hasil uji Split Tensile Test, menyelidiki fenomena pemberian penguatan bahan KLG terhadap BKS berdasarkan persentase pola retak (PPR) permukaan dinding, dan menganalisis perbandingan antara kekuatan tarik belah (KTB) dan PPR. Spesimen BKS yang digunakan dalam penelitian ini memiliki bentuk silinder dengan diameter 50 mm dan panjang 150 mm sesuai dengan standar ASTM C496. Bahan KLG digunakan sebagai lapisan tambahan pada BKS dengan variasi 0, 1, 2, 3, dan 4 lapis lembaran serat e-glass anyaman. Uji split tensile dilakukan menggunakan alat uji UTM (Universal Testing Machine) sesuai dengan standar ASTM C496. Penghitungan persentase pola retak dilakukan menggunakan metode Histogram dan bantuan perangkat lunak Adobe Photoshop. Hasil penelitian menunjukkan bahwa pola kerusakan terbesar terjadi pada spesimen yang diperkuat dengan 4 lapis KLG. Hal ini mengindikasikan bahwa diperlukan beban yang cukup besar untuk merusak spesimen yang telah diperkuat. Oleh karena itu, pemberian lapisan KLG pada BKS dapat meredam kerusakan yang terjadi pada spesimen tersebut. Analisis perbandingan antara kekuatan tarik belah dan persentase pola retak juga memberikan wawasan tambahan mengenai kinerja BKS yang diperkuat dengan KLG

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