Petra Christian University, Surabaya, Indonesia: Peer-Reviewed Scientific e-Journal
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Review of Carbon Fiber Based on Physical and Mechanical Properties in Vehicle Frame
No full textThis research aims to assess carbon fibre's physical and mechanical properties and potential use to improve vehicle efficiency. The main focus is to reduce vehicle weight, improve fuel efficiency, and lower carbon emissions. Carbon fibre has a tensile strength of more than 6 GPa, a modulus of elasticity of more than 600 GPa, and a density of 1.8-2.0 g/cm³. Its use in vehicles can reduce weight by 86%, improve fuel efficiency by 20%, and significantly reduce carbon emissions. The carbon fibre sandwich composite structure with an aluminium honeycomb core increases strength and reduces weight by 36%. Carbon fibre also improves the vehicle's rollover resistance by 64% and energy absorption by 60%. However, high manufacturing costs are a major challenge, with precursor materials such as polyacrylonitrile (PAN) accounting for about 50% of the cost. Biomass-based alternatives, such as lignin and agricultural waste, can reduce costs, although they require further development. Research shows that integrating recycled carbon fibre in metal-polymer hybrid structures can reduce vehicle weight by 48% and improve structural performance. This research emphasizes the importance of manufacturing innovation and the exploration of alternative materials to maximize the utilization of carbon fibre
THE ROLE OF ARTIFICIAL INTELLIGENCE COMPETENCIES, ORGANIZATIONAL SUPPORT, AND EMPLOYEE SELF-EFFICACY IN PREDICTING GOVERNMENT EMPLOYEE PERFORMANCE: A MEDIATION ANALYSIS WITH WORK ENGAGEMENT
No full textThe purpose of this research is to determine the role of Artificial Intelligence Competencies, organizational support, and employee self-efficacy in predicting the performance of government employees. This research uses quantitative methods with a type of correlation research. The structural Equation Model (SEM) approach is assisted by the smart PLS application. This approach was chosen because it aims to determine the correlation between the Artifical Intelligence Competencies, Organizational Support, and Employee Self-Efficacy variables: Employee Self-Efficacy. Data analysis in this research used descriptive analysis and statistical analysis. Descriptive analysis is done by describing the results of the sampling percentage. Based on the results of the research, we show that Artificial Intelligence (AI) competencies, employee self-efficacy, work engagement, and organizational support proved to have an important contribution to improving the performance of government employees. Implications of this study indicates the need of holistic approach in human resource management in government sector. Organizations should also develop technical competencies like artificial intelligence and support psychological competencies like self-efficacy and work engagement through just policies and sufficient facilities
REVEALING THE IMPORTANCE OF GREEN COLLABORATION IN GREEN INNOVATION: ENTREPRENEURIAL MARKETING PERSPECTIVE
No full textGreen innovation (GI) is often perceived as unnecessary for companies, while the amount of packaging waste with the potential to pollute the environment continues to increase significantly. Without extraordinary action, this will lead to contamination of ecosystems and a threat to human health. Therefore, this research aimed to explore the role of green collaboration (GC) in enhancing innovation and improving company performance (CP), with a particular emphasis on how the synergy of innovation and collaboration serves as a dimension of entrepreneurial marketing (EM). A quantitative method was used through a survey of 120 division heads and company owners in Indonesia. Moreover, data analysis was conducted using Structural Equation Model (SEM) method with Partial Least Squares (PLS) method. The results showed that both green innovation and green collaboration had a positive impact on company performance. However, green collaboration did not demonstrate a statistically significant moderating effect. This suggests that companies need to consider other strategic alliances to maximize the synergy between green innovation and green collaboration. The results can serve as a guide for companies in designing effective innovation and collaboration strategies to achieve sustainability and competitive advantage. However, a key limitation is that the strategy may not be applicable in another industry
PENGARUH VISUAL MERCHANDISING KKV GALAXY MALL SURABAYA TERHADAP REPURCHASE INTENTION DENGAN SHOPPING LIFESTYLE SEBAGAI VARIABEL MODERASI DAN IMPULSIVE BUYING SEBAGAI VARIABEL MEDIASI
No full textPenelitian ini bertujuan untuk menganalisa pengaruh Visual Merchandising KKV Galaxy Mall Surabaya terhadap Repurchase Intention dengan Shopping Lifestyle sebagai variabel moderasi dan Impulsive Buying sebagai variabel mediasi. Pengumpulan data untuk penelitian ini dilakukan dengan cara survey secara langsung di KKV Galaxy Mall dan online melalui Line, Whatsapp, dan Instagram. Jumlah responden yang berhasil diperoleh dan diolah datanya sebanyak 124 responden. Teknik analisis data yang digunakan adalah Partial Least Square (PLS). Hasil dari penelitian tugas akhir ini menunjukkan bahwa Visual Merchandising tidak berpengaruh signifikan terhadap Repurchase Intention, Visual Merchandising berpengaruh terhadap Impulsive Buying, Impulsive Buying berpengaruh terhadap Repurchase Intention, Impulsive Buying memediasi secara signifikan hubungan Visual Merchandising terhadap Repurchase Intention, dan Shopping Lifestyle tidak memoderasi hubungan Visual Merchandising terhadap Repurchase Intention customer KKV Galaxy Mall Surabaya
Effectiveness of Elastomeric Bearings in Reducing Pounding Effects between Reinforced Concrete Buildings under Seismic Condition
No full textThis study investigates seismic pounding hazards between adjacent reinforced concrete buildings in East Java, particularly those designed under older regulations without pounding considerations. Nonlinear time history analysis was performed on three building models using eleven pairs of earthquake records scaled to SNI 8899:2020, representing Megathrust, Benioff, and Shallow Crustal earthquakes, with only three pairs analyzed in this study. Model 1 allowed free movement, Model 2 included concrete impact links with a 50 mm gap, and Model 3 utilized elastomer bearing links with a 9 mm gap. Results showed that elastomeric bearings reduced pounding forces by 81% to 95%, decreasing link force from 57437 kN to 5745 kN while withstanding axial loads up to 6276 kN, preventing collisions and maintaining structural stability. Additionally, Model 3 exhibited reduced floor accelerations and structural damage compared to Model 2, emphasizing the importance of elastomeric bearings in mitigating seismic pounding risks
The Value of Passenger Car Equivalent using the Time Headway Method on Urban Roads
No full textThe escalating proliferation of vehicles has had a significant impact on the existing Passenger Car Equivalent (PCE) values, making them less effective under current traffic conditions for assessing road performance. This study aims to redefine PCE values for urban highways using the Time Headway method. Data collection was conducted over four days during peak traffic hours. The methodology involved direct field observations, analysis footage, and statistical modeling of time headway data distributions. The Kolmogorov-Smirnov fit test identified the Wakeby distribution as the most suitable representation of time headway data. Results yielded PCE values of 0.413 for motorcycles and 1.416 for medium vehicles, with discrepancies of 65.37% and 18.02%, indicating that the measured PCE values surpass the established benchmarks. The rise in vehicle numbers and the methodologies employed contribute to the variations in observed PCE levels. This research provides valuable insights for urban road planning and foundation studies for future research
Meningkatkan Harapan Bangsa Melalui Literasi Keuangan Pada Kegiatan Ekstrakurikuler
No full textKegiatan ekstrakurikuler atau eskul merupakan wadah bagi siswa untuk mengembangkan potensi diri secara positif serta membangun karakter. Tujuan kegiatan pengabdian masyarakat ini melalui kegiatan ekstrakurikuler untuk meningkatkan literasi tentang keuangan secara personal pada para siswa sekolah tingkat pertama. Siswa diharapkan dapat mengembangkan literasi keuangannya dan melakukan pengelolaan keuangan secara personal untuk tujuan masa depan. Kegiatan ini dilakukan selama satu semester pada periode Agustus 2023 – Januari 2024 setelah kegiatan intrakurikuler sekolah berakhir. Metode yang digunakan pada kelas ekskul literasi keuangan adalah metode interaktif untuk penyampaian materi tentang Otoritas Jasa Keuangan (OJK), pasar modal dan lembaga keuangan lain serta materi tentang pengelolaan keuangan, produk-produk keuangan dan teknik berinvestasi. Proses penyampaian materi dimulai dengan presentasi materi secara interaktif serta didukung media lain seperti kartu permainan, permaian games dan alat peraga boneka. Pada akhir kegiatan dilakukan evaluasi untuk mengukur pencapaian hasil dari kegiatan yang sudah dilaksanakan serta pertanggung jawaban ke pihak sekolah. Hasil evaluasi dari kegiatan ekskul ini membuktikan bahwa siswa menjadi lebih hati-hati dalam membelanjakan uangnya, lebih mandiri mengelola keuangan dan mulai belajar berinvestasi secara sederhana menggunakan aplikasi yang tersedia pada smartphone. Dalam jangka panjang, edukasi keuangan yang telah dilakukan sejak dini pada siswa SMP Santo Carolus diharapkan dapat membentuk karakter yang mandiri dan bertanggung jawab, serta mampu melakukan perencanaan untuk masa depannya secara sederhana
Pengembangan Komik Instagram “Toomis Booncis” Bertemakan Leisure bagi Remaja
No full textLeisure time merupakan salah satu faktor penting dalam perkembangan sosial remaja. Sebenarnya konsep leisure sangat menarik untuk dibahas dan diketahui oleh remaja, namun ternyata studi mengenai leisure di Indonesia masih kurang banyak dibahas. Sehingga melalui hal ini, munculah sebuah ide untuk membuat suatu hiburan bagi remaja bertemakan leisure time yang menarik dan mudah diakses. Dirancanglah komik digital “Toomis Booncis” yang bertujuan sebagai hiburan bagi remaja bertemakan leisure time dengan konten cerita mengenai aktivitas keseharian remaja yang berhubungan dengan leisure activity mereka. Komik ini ditargetkan untuk remaja yang berusia 17-22 tahun yang aktif menggunakan media sosial Instagram. Unik mengembangkan komik yang cocok untuk remaja, dilakukan pengumpulan data melalui wawancara dan survei. Tujuan penelitian ini adalah mengetahui bagaimana membuat konten cerita komik di media sosial dengan baik dan menerapkan konsep leisure dengan cara yang menyenangkan dan menghibur
A Review: Exploring AI’s Role in Architecture: Redefining New Design Interactions
No full textThe use of artificial intelligence in architecture has had a significant impact on the profession, sparking debate about its potential to fully automate architectural work. However, there is limited research on the influence of AI across all phases of the architectural design process. This article aims to analyze the extent of AI’s impact on architecture and to identify potential future benefits and challenges. The phases of architectural work discussed include pre-design, schematic design, design development, construction documentation, negotiation, and construction observation. Through a systematic literature review, this study highlights the transformative impact of AI across all stages of architectural design, emphasizing emerging concepts of design interaction and their implications for the profession. The findings suggest that while AI cannot fully replace architects, it indicates a shift in their role by enhancing collaboration and work flexibility. Nonetheless, the study emphasizes the importance of strengthening architects’ technological competence in using AI tools to ensure their continued relevance in the future