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All Journal Proximal: Jurnal Penelitian Matematika dan Pendidikan Matematika Jurnal Infomanpro Jurnal Riset dan Inovasi Pembelajaran Dinamika
Wijanarko, Danang
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Chemistry Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Languange, Linguistic, Communication & Media Mathematics Social Sciences Transportation Other

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An Examination of the Bond Characteristics between Concrete and Deformed Reinforcing Bars Nugroho, Danang Hadi; Wijanarko, Danang; Zahir, Lutfan Anas
Jurnal Teknik Sipil Info Manpro Vol 14 No 1 (2025): JURNAL INFOMANPRO
Publisher : Pascasarjana Teknik Sipil Institut Teknologi Nasional Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/infomanpro.v14i1.13692

Abstract

The most critical performance of a reinforced concrete composite structure is the binding behavior between its components. Optimal bond behavior is essential for guaranteeing the service performance of reinforced concrete structures, influencing the structure's performance throughout its life cycle. In practical structural analysis, it is commonly accepted that the two do not generate relative slippage, leading to discrepancies between the studied structure and the real engineering conditions. Currently, numerous scholars worldwide have employed diverse testing methodologies, thoroughly examining various aspects influencing the binding behavior between bent rebar and concrete, resulting in numerous results. This paper provides a comprehensive review of the research status regarding the bonding performance of reinforced concrete, grounded in the pertinent findings of various scholars. It examines the bond mechanism, the experimental methodologies for assessing bond behavior, and the factors influencing this behavior. It is anticipated that it will serve as a reference for scholars examining the bond behavior of reinforced concrete in the future.
PENERAPAN MODEL PROBLEM BASED LEARNING UNTUK MENINGKATKAN HASIL BELAJAR SISWA SMK NEGERI 10 KABUPATEN TANGERANG Wijanarko, Danang; Saleh, Sirajudin; Sufriadi, Sufriadi
Jurnal Riset dan Inovasi Pembelajaran Vol. 2 No. 1 (2022): Januari-April 2022
Publisher : Education and Talent Development Center Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/jrip.v2i1.178

Abstract

The purpose of this study is to improve the learning outcomes of class X OTKP students at SMK Negeri 10 Tangerang Regency in the Academic Year 2021/2022 in Correspondence subjects with the application of the PBL (Problem Based Learning) learning model. This type of research is Classroom Action Research with descriptive methods, the data analysis technique is quantitative, the average test scores of students' learning outcomes. Data collection techniques for student learning outcomes with learning outcomes tests. This study consisted of 2 cycles consisting of 4 stages. The research subjects were 35 students. The results of this study are the application of the Problem Based Learning learning model can improve student learning outcomes as evidenced by an increase in student learning outcomes in the pre-cycle, increasing in the first cycle and increasing again in the second cycle. All students have completed in learning the material parts of the letter; the forms of letters so that the Problem Based Learning Model is very good to be applied in SMK Negeri 10 Tangerang Regency.
PERAN BRAND IMAGE, KUALITAS PRODUK, HARGA DAN GAYA HIDUP GENERASI Z TERHADAP KEPUTUSAN PEMBELIAN IPHONE: (Studi Pada Mahasiswa Universitas Dian Nuswantoro Pengguna Iphone) Wijanarko, Danang; Mahmud, Mahmud; Haziroh, Awanis Linati; Fatmawati, Elia Resha
Dinamika: Jurnal Manajemen Sosial Ekonomi Vol. 5 No. 1 (2025): DINAMIKA : Jurnal Manajemen Sosial Ekonomi
Publisher : LPPM Sekolah Tinggi Ilmu Ekonomi - Studi Ekonomi Modern

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51903/pbq53q10

Abstract

This study examines the impact of brand image, product quality, price, and lifestyle on iPhone purchasing decisions among Generation Z, specifically Dian Nuswantoro University students. Using a quantitative approach with an questionnaire survey distributed to 133 students, the data were analyzed through Partial Least Square (PLS). The results revealed that brand image, product quality, price, and lifestyle positive and significantly influence iPhone purchasing decisions. A strong brand image boosts buying interest, product quality builds confidence, price aligns with perceived benefits, and lifestyle affects preferences based on social status. The findings suggest that Apple should focus on brand image, product quality, and pricing strategies tailored to young consumers.
Komposisi Fungsi Nonlinier Antar Ruang Vektor Berdimensi Tinggi Dalam Arsitektur Neural Network Zahir, Lutfan Anas; Wijanarko, Danang; Nugroho, Danang Hadi
Proximal: Jurnal Penelitian Matematika dan Pendidikan Matematika Vol. 8 No. 3 (2025): Volume 8 Nomor 3 Tahun 2025 (July - September)
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/proximal.v8i3.6538

Abstract

Penelitian ini menyajikan pendekatan konseptual dan eksperimental dalam memodelkan jaringan saraf tiruan (neural network) sebagai suatu transformasi nonlinier berlapis antar ruang vektor berdimensi tinggi. Dengan mendasarkan pada kerangka matematis komposisi fungsi linier dan aktivasi nonlinier, studi ini memetakan bagaimana representasi data secara spasial berubah melalui setiap lapisan jaringan. Menggunakan data sintetis berdimensi tinggi dan arsitektur multilayer perceptron (MLP), transformasi internal jaringan dianalisis baik secara visual melalui proyeksi PCA dan t-SNE, maupun secara kuantitatif melalui pengukuran perubahan metrik spasial. Hasil eksperimen menunjukkan bahwa jaringan saraf tidak hanya berfungsi sebagai aproksimator fungsi, tetapi juga secara aktif membentuk ulang geometri manifold data untuk meningkatkan keterpisahan antar kelas. Fungsi aktivasi seperti ReLU dan tanh terbukti memiliki dampak signifikan terhadap struktur representasi, dengan ReLU menghasilkan sparsifikasi spasial yang lebih kuat. Temuan ini mendemonstrasikan bahwa pemahaman terhadap dinamika spasial dalam neural network dapat memberikan fondasi yang lebih transparan dalam interpretasi model, serta membuka arah baru dalam riset interpretabilitas deep learning berbasis pendekatan matematis dan geometris.
Co-Authors Awanis Linati Haziroh Fatmawati, Elia Resha Mahmud Mahmud Nugroho, Danang Hadi Saleh, Sirajudin Sufriadi Sufriadi ZAHIR, LUTFAN ANAS