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"ABSTRAKPerpindahan lajur adalah komponen yang penting dalam simulasi model lalu lintas mikroskopis, dan memiliki impact pada pergerakan lalu lintas pada segmen-segmen tertentu jalan. Perpindahan lajur pada off ramp menimbulkan efek diverging pada jalan, perpindahan lajur yang kurang tepat pada jalan bebas hambatan akan membahayakan banyak pengguna jalan bebas hambatan. Penelitian ini bertujuan untuk mengetahui perilaku masyarakat pengendara kendaraan kecil pada off ramp jalan bebas hambatan. Penelitian ini menggunakan data berbasis video dan menggunakan Trajectory Extractor yang dikembangkan oleh Lee et al. (2009) yang berfungsi untuk menghasilkan data posisi kendaraan tiap detik secara semi manual. Hasil penelitian ini menunjukan karakter perpindahan lajur pada off ramp jalan bebas hambatan. Hasil dari permodelan adalah pengemudi yang tidak akan keluar dari jalan bebas hambatan cenderung menghindari offramp.

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ABSTRACTMoving lanes are an important component in the simulation of microscopic traffic models, and have an impact on traffic movements in certain segments of the road. The transfer of the lane off the ramp creates a diverging effect on the road, the displacement of the lane that is not right on the freeway will endanger many freeway users. This study aims to determine the behavior of small motorists on the off road ramp. This study uses video-based data and uses the Trajectory Extractor developed by Lee et al. (2009) which functions to produce semi-manual vehicle position data every second. The results of this study indicate the character of the displacement of the freeway ramp on the ramp. The result of modeling is that drivers who will not get off the freeway tend to avoid the off ramp road.

 

 

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"The book focuses on the orbital dynamics and mission trajectory (transfer or target trajectory) design of low-energy flight in the context of modern astrodynamics. It investigates various topics that either offer new methods for solving classical problems or address emerging problems that have yet to be studied, including low-thrust transfer trajectory design using the virtual gravity field method; transfer in the three-body system using invariant manifolds; formation flying under space-borne artificial magnetic fields; and the orbital dynamics of highly irregular asteroids. It also features an extensive study of the orbital dynamics in the vicinity of contact binary asteroids, including the 1:1 ground-track resonance, the equilibrium points and their stability, and the third-order analytical solution of orbital motion in the vicinity of the non-collinear equilibrium point."

"Sistem Double Lambda Rocker Bogie, sistem suspensi mekanis untuk kapasitas beban yang lebih cepat dan lebih berat pada Mobile Robot kurang stabil karena tidak adanya pegas atau/dan peredam. Karena sifat mekanisnya, jika dioptimalkan, ini bisa membantu dalam Pertanian Presisi di lahan pertanian Indonesia. Dalam skripsi ini, diusulkan tiga konfigurasi desain untuk Double Lambda Rocker Bogie: Suspensi Pegas (SS), Suspensi Peredam (DS), dan Suspensi Kombinasi (SS). Tiga dari sistem ini diuji dalam tiga jalur berbeda untuk mendapatkan kumpulan data tentang lintasan, derajat kebebasan, dan kecepatan linier untuk menganalisis kinerja konfigurasi desain. Alasan visual untuk kinerja mekanis juga divisualisasikan dengan gambar gaya fotografi urutan untuk melihat diagram gaya bebasnya. Berdasarkan performa dan data-data yang di analisa, sistem Suspensi Kombinasi paling cocok untuk medan pertanian. Studi ekstensif tentang keterbatasan serta pembuatan prototipe dan eksperimen dapat meningkatkan kemungkinan robotika di implementasi di lahan pertanian Indonesia

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The Double Lambda Rocker Bogie system, a mechanical suspension system for a faster and heavier load capacity Mobile Robot lacks in stability due to the absence of springs or/and dampeners. Due to its nature, if optimized, this could help in Precision Agriculture in Indonesian fields. In this paper, three design configurations for the Double Lambda Rocker Bogie are proposed: Spring Suspension (SS), Damper Suspension (DS), and Combination Suspension (SS). Three of these systems are tested in three different paths to obtain datasets on the trajectory, degrees of freedom, and linear velocity to analyse the performances of the design configurations. The visual reasoning for the mechanical performance is also visualized with sequence photography style images for the free body diagram. Based on the final performances, a Combination Suspension system is best suited for farm terrains. Extensive studies on the limitations as well as prototyping and experimentation could improve the likeliness of robotics implementation in Indonesia’s agricultural fields.

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