Conditions for State and Control Constraint Activation in Coordination of Connected and Automated Vehicles

Connected and automated vehicles (CAVs) provide the most intriguing opportunity to reduce pollution, energy consumption, and travel delays. In earlier work, we addressed the optimal coordination of CAVs using Hamiltonian analysis. In this paper, we investigate the nature of the unconstrained problem and provide conditions under which the state and control constraints become active. We derive a closed-form analytical solution of the constrained optimization problem and evaluate the solution using numerical simulation

Concurrent Optimization of Vehicle Dynamics and Powertrain Operation Using Connectivity and Automation

Connected and automated vehicles (CAVs) provide the most intriguing opportunity to reduce energy consumption and travel delays. In this paper, we propose a two-level control architecture for CAVs to optimize (1) the vehicle's speed profile, aimed at minimizing stop-and-go driving, and (2) the powertrain efficiency of the vehicle for the optimal speed profile derived in (1). The proposed hierarchical control framework can be implemented onboard the vehicle in real time with minimal computational effort. We evaluate the effectiveness of the efficiency of the proposed architecture through simulation in Mcity using a 100% penetration rate of CAVs. The results show that the proposed approach yields significant benefits in terms of energy efficiency.Comment: Updating and replacing the old version of arXiv:1911.03475 with the finalized manuscrip

A monitoring approach for runtime service discovery

Effective runtime service discovery requires identification of services based on different service characteristics such as structural, behavioural, quality, and contextual characteristics. However, current service registries guarantee services described in terms of structural and sometimes quality characteristics and, therefore, it is not always possible to assume that services in them will have all the characteristics required for effective service discovery. In this paper, we describe a monitor-based runtime service discovery framework called MoRSeD. The framework supports service discovery in both push and pull modes of query execution. The push mode of query execution is performed in parallel to the execution of a service-based system, in a proactive way. Both types of queries are specified in a query language called SerDiQueL that allows the representation of structural, behavioral, quality, and contextual conditions of services to be identified. The framework uses a monitor component to verify if behavioral and contextual conditions in the queries can be satisfied by services, based on translations of these conditions into properties represented in event calculus, and verification of the satisfiability of these properties against services. The monitor is also used to support identification that services participating in a service-based system are unavailable, and identification of changes in the behavioral and contextual characteristics of the services. A prototype implementation of the framework has been developed. The framework has been evaluated in terms of comparison of its performance when using and when not using the monitor component

Penyuluhan Kehutanan Partisipatif

Participative extension is an extension model that involves farmers in the whole process of decision making. Extension officers have several functions such as to strengthen the ability and the potency of the farmers, to improve their agricultural management, and to utilize the forest by involving them at the beginning stage of the study (from data collection, analysis, identification, planning, organization, implementation, monitoring, and evaluation, until the reporting activity). To increase the outcome, we need to held the course for the forestry extension officers and the farmers as target groups regularly. Keyword: Extension, Farmers, Participative Keyword: Extension, Farmers, Participativ

Pengembangan Sign System Kampus Unesa Lidah Wetan

Setiap tempat seharusnya memiliki sign system yang tepat untuk membantu audiens dalam menemukan sebuah gedung, tidak terkecuali Kampus Unesa Lidah Wetan, yang memiliki secarah panjang dari mulai intregasi kursus di Surabaya pada tahun 1960, hingga menjadi sebuah Universitas sampai saat ini (tahun 2017). Peneliti menemukan sebuah masalah pada sign system di Kampus Unesa Lidah Wetan, beberapa audiens khususnya pengunjung sering kali bertanya mengenai letak lokasi gedung, padahal Kampus Unesa Lidah Wetan sudah memiliki petunjuk arah di beberapa tempat. Selain itu sign system di Kampus Unesa Lidah Wetan juga harus mendukung program eco campus. Untuk menjawab masalah tersebut peneliti menggunakan metode penelitian dan pengembangan level 3 milik Prof. Dr. Sugiyono, bertujuan untuk mengembangkan desain sign system yang telah ada, membuat desain sign system dan menguji keefektifan desain sign system tersebut. Menggunakan analisis data formalistik dan analisis data deskriptif. Visualisasi desain menggunakan lima tahap, yaitu: (1) Thumbnails, (2) Rought Layout, (3) Tight Tissue, (4) Comprehensive, (5) Final Artwork. Setiap tahap visualisasi desain menghasilkan beberapa alternatif desain yang dikonsultasikan dengan dosen pembimbing skripsi. Sign system yang dikembangkan adalah 11 directional sign diluar ruangan dan satu site map diluar ruangan. Uji coba terbatas menggunakan kuisioner online berisi gambar mock up 11 directional sign sebelum dikembangkan dan sesudah dikembangkan, dan satu site map baru. Dari penelitian yang dilakukan, diketahui kelebihan dan kekurangan 11 directional sign di Kampus Unesa Lidah Wetan, kelebihan dan kekurangan tersebut kemudian dikembangkan menjadi sebuah konsep pengembangan desain directional sign dan site map yang baru sesuai kajian teori yang relevan. Wujud desain directional sign dan site map merupakan hasil akhir setelah melewati proses revisi desain dari dua validator. Pengembangan sign system Kampus Unesa Lidah Wetan dikatakan berhasil, dibuktikan dengan hasil uji coba terbatas pada 11 directional sign nilai setiap aspek penilaiannya mengalami peningkatan. Sedangkan site map memiliki kelemahan sulit untuk dibaca, responden beranggapan pesan (tulisan) site map terlalu kecil, sehingga sulit untuk dipahami. Kelemahan tersebut ada, karena pada form kuisioner tidak terdapat keterangan ukuran site map dan cara membaca site map, pesan (tulisan) pada site map seharusnya dibaca dan diapahami dengan jarak dekat.   Kata Kunci : Sign System, Kampus Unesa Lidah Wetan, Eco Campus Unesa, Master Plan Unes

Endogenous Private Transfer and Real Exchange Rate Dynamics in a Two-Sector Dependent Economy

Government to government transfers are treated understandably as exogenous in open economy macro models. Even private transfer like remittances are treated as exogenous in the extant literature. In this paper we examine the effects of endogenous private transfer (remittances) on the real exchange rates using a dynamic two-sector dependent economy model. We examine the effects of demand and supply shocks and found that the dynamic patterns for real exchange rates depends on endogeneity of the transfer and the factor intensity of the traded and non-traded sectors

Accounting for City Real Exchange Rate Changes in India

We examine the role of non-traded goods in the city real exchange rate changes in India. Using the Mean Squared Error (MSE) decomposition we find that non-traded goods explain about 30% of the variation of the Indian city real exchange rate changes, rather than the small amount found in other cross-country studies. We also analyze the role of consumption elasticity of substitution between traded and non-traded goods

A Decentralized Time- and Energy-Optimal Control Framework for Connected Automated Vehicles: From Simulation to Field Test

The implementation of connected and automated vehicle (CAV) technologies enables a novel computational framework for real-time control aimed at optimizing energy consumption with associated benefits. In this paper, we implement an optimal control framework, developed previously, in an Audi A3 etron plug-in hybrid electric vehicle, and demonstrate that we can improve the vehicle's efficiency and travel time in a corridor including an on-ramp merging, a speed reduction zone, and a roundabout. Our exposition includes the development, integration, implementation and validation of the proposed framework in (1) simulation, (2) hardware-in-the-loop (HIL) testing, (3) connectivity enabled virtual reality based bench-test, and (4) field test in Mcity. We show that by adopting such inexpensive, yet effective process, we can efficiently integrate and test the controller framework, ensure proper connectivity and data transmission between different modules of the system, and reduce uncertainty. We evaluate the performance and effectiveness of the control framework and observe significant improvement in terms of energy and travel time compared to the baseline scenario