In this study, we design and verify an intake system using the wake of a pocket-sized quadcopter for the chemical plume tracing (CPT) problem. Solving CPT represents an important technique in the field of engineering because it can be used to perform rescue operations at the time of a disaster and to identify sources of harmful substances. An appropriate intake of air when sensing odors plays an important role in performing CPT. Hence, we used the air flow generated by a quadcopter itself to intake chemical particles into two alcohol sensors. By experimental evaluation, we verified that the quadcopter wake intake method has good directivity and can be used to realize CPT. Concretely, even at various odor source heights, the quadcopter had a three-dimensional CPT success rate of at least 70%. These results imply that, although a further development of three-dimensional CPT is necessary in order to conduct it in unknown and cluttered environments, the intake method proposed in this paper enables a pocket-sized quadcopter to perform three-dimensional CPT.
This study investigated the capability of a group of agents to form a desired shape formation by designing the feedback control using a linear quadratic regulator. In real application, the state condition of agents may change due to some particular problems such as a slow input response. In order to compensate for the problem that affects agent-to-agent coordination, a robust regulator was implemented into the formation algorithm. In this study, a linear quadratic regulator as the full-state feedback of robust regulator method for shape formation was considered. The result showed that a group of agents can form the desired shape (square) formation with a modification of the trajectory shape of each agent. The results were validated through numerical experiments.
This work studies the method of sorting plastic bottles-waste. Currently, the recycling treatment for a different type of plastic bottle wastes is similar although they are made of different plastic material. The disadvantage of the current method is that the produced plastic is an unknown type of plastics. To perform recycling treatment of similar types of plastic bottle waste, the plastic-bottle waste needs to be sorted based on their material characteristics. We propose a sorting method of the plastic-bottle waste by using a barcode scanner. A database on plastic-bottle waste based on their barcode number, which then categorized their material characteristics, is first created. In this paper, the diagram of the sorting process is given.
Populasi Indonesia yang besar menjadi pasar pengguna Telepon Seluler yang besar pula, di mana sebagian besarnya terkoneksi dengan Internet. Tipe perangkat yang terkoneksi dengan Internet kian beragam dengan harga yang juga kian terjangkau. Koneksi Internet yang cepat juga semakin terjangkau oleh pengguna. Ragam aplikasi untuk dapat berkomunikasi, bersosialisasi, dan berinteraksi semakin membentuk masyarakat pengguna yang semakin bergantung dengan teknologi ini. Diperlukan cukup edukasi kepada masyarakat untuk menggunakan teknologi ini dengan bijaksana, khususnya pada area beretika di Internet, mengingat konten yang tersebar dan terserap melalui Internet juga semakin cepat.Kata Kunci: Netiket, Internet, Media Sosial, Pesan Instan, Pengabdian kepada Masyarakat
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.