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Multi-Cattle Tracking Algorithm with Enhanced Trajectory Estimation in Precision Livestock Farms
Shujie Han,Alvaro Fuentes,Sook Yoon,Jongbin Park,Dong Sun Park (사)한국스마트미디어학회 2024 스마트미디어저널 Vol.13 No.2
In precision cattle farm, reliably tracking the identity of each cattle is necessary. Effective tracking of cattle within farm environments presents a unique challenge, particularly with the need to minimize the occurrence of excessive tracking trajectories. To address this, we introduce a trajectory playback decision tree algorithm that reevaluates and cleans tracking results based on spatio-temporal relationships among trajectories. This approach considers trajectory as metadata, resulting in more realistic and accurate tracking outcomes. This algorithm showcases its robustness and capability through extensive comparisons with popular tracking models, consistently demonstrating the promotion of performance across various evaluation metrics that is HOTA, AssA, and IDF1 achieve 68.81%, 79.31%, and 84.81%.
Shuji Watanabe,Prasanna Boyagoda,Hirshi Takano,Mutsuo Nakaoka 전력전자학회 1998 ICPE(ISPE)논문집 Vol.- No.-
This paper presents a two-paralleled 4 quadrant DC chopper type PWM power conversion circuit in order to generate a gradient magnetic field in the Magnetic Resonance Imaging (MRI) system. This power amplifier is connected in parallel with the conventional 4-quadrant DC chopper using IGBTs at their inputs/outputs to realize further high-power density, high speed current tracking control, and to get a low switching ripple amplitude in a controlled current in the Gradient Coils (GCs). Moreover, the power conversion circuit has to realize quick rise/fall response characteristics in proportion to various target currents in GCs.<br/> It is proposed in this paper that a unique control scheme can achieve the above objective DSP-based control systems realize a high control facility and accuracy. It is proved that the new control system will greatly enlarge the diagnostic target and improve the image quality or MRf.
Software-Based Internet Protocol Offload Engine for Low-End Field Devices
Shuji Kuwahara,Takanori Shimomura,Yoshio Yoshida 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
Internet Protocol (IP) technology can be employed in field networks for process automation. However,low-end CPUs, which are generally used for operating field devices, require excessive computational power for processing IP and its security protocols such as IPsec. We propose a software-based Protocol Offload Engine (POE) approach, by which only the bottleneck in IP stacks is implemented as hardware and the rest is implemented as software on an alternative CPU. The experimental result shows that the software-based POE achieves the IP and IPsec performance required for use in field devices with a macrocycle of a few hundred milliseconds. The software-based POE also eliminates the overhead of the key exchange protocol processing from a host CPU.
( Shujie Wang ),( Lulu Peng ),( Kyeong-man Kim ) 한국응용약물학회 2024 Biomolecules & Therapeutics(구 응용약물학회지) Vol.32 No.1
Biased signaling or functional selectivity refers to the ability of an agonist or receptor to selectively activate a subset of transducers such as G protein and arrestin in the case of G protein-coupled receptors (GPCRs). Although signaling through arrestin has been reported from various GPCRs, only a few studies have examined side-by-side how it differs from signaling via G protein. In this study, two signaling pathways were compared using dopamine D<sub>2</sub> receptor (D<sub>2</sub>R) mutants engineered via the evolutionary tracer method to selectively transduce signals through G protein or arrestin (D<sub>2</sub>G and D<sub>2</sub>Arr, respectively). D<sub>2</sub>G mediated the inhibition of cAMP production and ERK activation in the cytoplasm. D<sub>2</sub>Arr, in contrast, mediated receptor endocytosis accompanied by arrestin ubiquitination and ERK activation in the nucleus as well as in the cytoplasm. D<sub>2</sub>Arr-mediated ERK activation occurred in a manner dependent on arrestin3 but not arrestin2, accompanied by the nuclear translocation of arrestin3 via importin1. D<sub>2</sub>R-mediated ERK activation, which occurred in both the cytosol and nucleus, was limited to the cytosol when cellular arrestin3 was depleted. This finding supports the results obtained with D<sub>2</sub>Arr and D<sub>2</sub>G. Taken together, these observations indicate that biased signal transduction pathways activate distinct downstream mechanisms and that the subcellular regions in which they occur could be different when the same effectors are involved. These findings broaden our understanding on the relation between biased receptors and the corresponding downstream signaling, which is critical for elucidating the functional roles of biased pathways.
( Shuji Yamaguchi ) 고려대학교 법학연구원 2017 The Asian Business Lawyer Vol.20 No.-
The Tokyo High Court in NYK ARGUS Case decided that the shipper should be responsible to categorize and judge if the substance is categorized as the flammable substances. If it is not clear, the shipper should perform the evaluation test. The Japanese Commercial Code will be amended that ; “If the cargo is flammable, explosive or any dangerous cargo, the shipper shall declare to the carrier its name, nature and necessary information to carry the dangerous cargo safely before delivery to the carrier” In case, the shipper breaches the duty of the declaration, the carrier shall be entitled to claim the loss or damage to the shipper. The shipper’s liability shall be assumed negligence liability.
Principals’ perceptions of effective teaching: A survey of Chinese school principals
Shujie Liu,Jian Wang,Hongmei Liang 한국교육개발원 2015 KEDI Journal of Educational Policy Vol.12 No.2
Principals’ beliefs of effective teaching presumably shape their efforts to recruit teachers, evaluate teaching quality, support teachers to develop their teaching practices, and nurture the professional environment that promotes high the teaching quality in their schools. Drawing on survey data from 314 Chinese principals, this study examines principals’ perceptions of effective teaching and compares them with those of Chinese teachers and U.S. school principals in the literature. The study found that Chinese principals believed effective teaching practices to be those that align lesson plans with student learning styles, engage students actively in the learning process, offer clear, specific, and timely feedback, treat all students with respect, and maintain a physical and emotional safe environment for learning. These ideas are consistent with Chinese teachers’ perceptions about effective teaching but are clearly differentiated from those of U.S. principals. These perceptions were varied as participants had different years of administrative experiences, worked in urban or rural schools, and in schools with different levels of student performance.
Shujie Zhang,Lisong Fu,Zhaowei Yang,Mengke Jing,Ziwei Zhang,Shijian Xiang,Rui Wang 한국섬유공학회 2021 Fibers and polymers Vol.22 No.4
In view of the problems that traditional woven surgical gowns are prone to cross infection in blocking blood andliquid spillage, cellulose acetate (CA)/polylactic acid (PLA) nonwoven materials were prepared to improve the functionalrequirements of surgical materials in combination with the rapidly developing green fibers. Fiber mixing ratio, fiber webareal weight and water jet pressure were selected to optimize the preparation process of cellulose acetate/polylactic acid (CA/PLA) nonwoven materials with moisture permeability and filtration efficiency. The results showed that the fiber mixing ratiowas 49:51, and the fiber web areal weight was 130 g/m2, and the water jet pressure was 7 MPa. Under this process, moisturepermeability is 5240.86 g/(m2·h), and the filtration efficiency is 38.12 %, which is close to the theoretical value. It shows thatthe response surface method has practical application value, indicating that the response surface method has practicalapplication value, and can provide a theoretical basis for the preparation process parameters of barrier and comfort nonwovensurgical gowns at the same time.
Shuji Nakagawa,Yuji Arai,Kunio Hara,Hiroaki Inoue,Manabu Hino,Toshikazu Kubo 대한슬관절학회 2017 대한슬관절학회지 Vol.29 No.4
We describe a patient who underwent arthroscopic pullout fixation for a posterior cruciate ligament (PCL) avulsion fracture. A 46-year-old female, injured in a fall while riding a motorcycle, was diagnosed with a right knee PCL tibial attachment avulsion fracture and underwent arthroscopic osteosynthesis. A Kirschner wire was drilled to a point just medial to the medial border of the anterior tibial bony bed. A suture wire was folded into a loop and introduced into the posteromedial compartment via the bone tunnel. A fixation thread was inserted from the posteromedial portal, through the medial and lateral loop wires, and into the posteromedial compartment. The lateral and medial loop wires attached to the thread were pulled to the outside, and the thread was fixed onto the tibia. Three months post-surgery, she returned to her job. This procedure represents a minimally invasive method of treating avulsion fractures of the tibial attachment of the PCL.