Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Hoang Viet Hung"'
We consider discrete (time and space) random walks confined to the quarter plane, with jumps only in directions $(i,j)$ with $i+j \geq 0$ and small negative jumps, i.e., $i,j \geq -1$. These walks are called singular, and were recently intensively st
Externí odkaz:
http://arxiv.org/abs/2208.00477
Autor:
Hoang, Viet Hung
We construct harmonic functions in the quarter plane for discrete Laplace operators. In particular, the functions are conditioned to vanish on the boundary and the Laplacians admit coefficients associated with transition probabilities of non-symmetri
Externí odkaz:
http://arxiv.org/abs/2201.09985
Autor:
Nguyen, Hoc Thang, Truong, Minh Thuan, Doan, Van-Dat, Nguyen, Thi Lan Huong, Hoang, Viet Hung, Tran, Vy Anh, Nguyen, Anh-Tien, Le, Van Thuan
Publikováno v:
In Chemical Engineering Science 5 February 2024 284
Publikováno v:
Transactions of the American Mathematical Society, Volume 375, Number 7, July 2022, Pages 4741-4782
We propose a systematic construction of signed harmonic functions for discrete Laplacian operators with Dirichlet conditions in the quarter plane. In particular, we prove that the set of harmonic functions is an algebra generated by a single element,
Externí odkaz:
http://arxiv.org/abs/2012.08947
Publikováno v:
In Indagationes Mathematicae September 2023 34(5):936-972
Publikováno v:
Journal of Disaster Research. 16:579-587
The density-based spatial clustering of applications with noise (DBSCAN) algorithm is a well-known algorithm for spatial-clustering data point clouds. It can be applied to many applications, such as crack detection, rockfall detection, and glacier mo
Autor:
Pakinee Aimmanee, Kanokvate Tungpimolrut, Akihiko Wakai, Ken T. Murata, Asadang Tanatipuknon, Suthum Keerativittayanun, Go Sato, Jessada Karnjana, Hoang Viet Hung, Yoshihiro Watanabe
Publikováno v:
Journal of Disaster Research. 16:588-595
This study aims to improve the accuracy of landslide detection in satellite images by combining two object detection models based on a faster region-based convolutional neural network (Faster R-CNN) with a classification decision tree. The proposed m
Publikováno v:
Journal of Disaster Research. 16:495-500
Helical anchors, sometimes referred to as screw anchors, screw piles, and helical piles, are a steel screw-in piling and ground anchoring system used for building deep foundations. Screw piles are manufactured using varying sizes of tubular hollow se
Autor:
Takatsugu Ozaki, Nguyen Duc Manh, Takashi Kimura, Shinichi Tosa, Go Sato, Osamu Yokoyama, Takanari Yamasaki, Communications, Hanoi, Vietnam, Hoang Viet Hung, Akihiko Wakai
Publikováno v:
Journal of Disaster Research. 16:556-560
Hau Thao Village is located in Sa Pa Prefecture, in northern Vietnam. The village contains one of the most picturesque landscapes with terraced paddy fields located in landslide topography formed on a gentle slope. However, the creation of the topogr
Autor:
Takanari Yamasaki, Communications, Hanoi, Vietnam, Nguyen Duc Manh, Nanaha Kitamura, Akino Watanabe, Nguyen Van Thang, Takatsugu Ozaki, Akihiko Wakai, Takashi Kimura, Go Sato, Kazunori Hayashi, Hoang Viet Hung, Shinichi Tosa, Nobuyuki Asai
Publikováno v:
Journal of Disaster Research. 16:547-555
Every year, especially in the rainy season, landslides occur quite often in Lao Cai – a northern mountainous province of Vietnam. Specifically, in the year 2019, several landslides were observed to occur near the Sapa Ancient Rock Field in Hau Thao