Zobrazeno 1 - 10
of 185
pro vyhledávání: '"Takumi TAKAHASHI"'
Autor:
Hideaki Hamanaka, Takuya Tajima, Syuji Kurogi, Kiyoshi Higa, Takuya Nagai, Takumi Takahashi, Takayuki Matsumoto, Etsuo Chosa
Publikováno v:
Spine Surgery and Related Research, Vol 8, Iss 5, Pp 480-484 (2024)
Introduction: A halo vest is an immobilization device widely used to stabilize the cervical spine. Pain and infection at the skull pin insertion site are common complications, but skull perforation is rare, and most published studies are case reports
Externí odkaz:
https://doaj.org/article/295196dd168d4ca3966af8e551c17b91
Characteristics of Alzheimer’s Disease and Mild Cognitive Impairment Influenced by the Time of Onset
Autor:
Hiroyuki Sato, Miho Ota, Ayako Kitabatake, Yuriko Numata, Takumi Takahashi, Masashi Tamura, Kiyotaka Nemoto, Tetsuaki Arai
Publikováno v:
Dementia and Geriatric Cognitive Disorders Extra, Vol 14, Iss 1, Pp 81-88 (2024)
Introduction: Although the prevalence of Alzheimer’s disease (AD) is higher in older people compared to younger people, dementia has also been documented in younger adults. Although early-onset dementia and late-onset dementia had been considered a
Externí odkaz:
https://doaj.org/article/065def46e023418086de0aa1fdeeefd7
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 5, Pp 6090-6105 (2024)
This paper proposes a novel joint channel and data estimation (JCDE) algorithm via parametric bilinear Gaussian belief propagation (PBiGaBP) for orthogonal time frequency space (OTFS) demodulation. In doubly-selective fading channels, since the Doppl
Externí odkaz:
https://doaj.org/article/716c354936914401a63f4994e25459db
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 5, Pp 5905-5920 (2024)
This paper proposes a novel beam-domain channel estimation (CE) algorithm via sparse Bayesian learning (SBL) using complex t-prior for massive multi-user multiple-input multiple-output (MIMO) systems. Due to the sidelobe leakage and insufficient obse
Externí odkaz:
https://doaj.org/article/db08e8d106a546698023e749fe050230
Publikováno v:
IEEE Access, Vol 11, Pp 13044-13057 (2023)
We propose a novel look-up table (LUT)-based multi-user detection (MUD) algorithm to imitate approximate message passing (AMP) for uplink signal detection in massive multi-user multi-input multi-output (MU-MIMO) systems. When AMP is implemented with
Externí odkaz:
https://doaj.org/article/859aec86f3944b5a9ca058f376493c27
Autor:
Kosuke Hamahashi, Eriko Toyoda, Miya Ishihara, Genya Mitani, Tomonori Takagaki, Nagatoshi Kaneshiro, Miki Maehara, Takumi Takahashi, Eri Okada, Ayako Watanabe, Yoshihiko Nakamura, Reiko Kato, Ryo Matoba, Takehiko Takagi, Hidenori Akutsu, Akihiro Umezawa, Hiroyuki Kobayashi, Tadashi Akamatsu, Masayuki Yamato, Teruo Okano, Masahiko Watanabe, Masato Sato
Publikováno v:
npj Regenerative Medicine, Vol 7, Iss 1, Pp 1-12 (2022)
Abstract Allogeneic cell therapies are not fully effective in treating osteoarthritis of the knee (OAK). We recently reported that transplantation of autologous chondrocyte cell-sheets along with open-wedge high tibial osteotomy promoted hyaline cart
Externí odkaz:
https://doaj.org/article/6022a8c885e640b08f1ca1d92bbb4f2c
Autor:
Takumi Takahashi, Shunji Kato, Junya Ito, Naoki Shimizu, Isabella Supardi Parida, Mayuko Itaya-Takahashi, Masayoshi Sakaino, Jun Imagi, Kazuaki Yoshinaga, Aya Yoshinaga-Kiriake, Naohiro Gotoh, Ikuo Ikeda, Kiyotaka Nakagawa
Publikováno v:
Redox Biology, Vol 57, Iss , Pp 102471- (2022)
The in vivo presence of triacylglycerol hydroperoxide (TGOOH), a primary oxidation product of triacylglycerol (TG), has been speculated to be involved in various diseases. Thus, considerable attention has been paid to whether dietary TGOOH is absorbe
Externí odkaz:
https://doaj.org/article/cb504cf96275468c81b773b7c1e29e67
Publikováno v:
Arthritis Research & Therapy, Vol 23, Iss 1, Pp 1-10 (2021)
Abstract Background Cartilage degeneration is assessed using various methods. Although macroscopic evaluation can directly measure cartilage degeneration, it cannot accurately assess cartilage properties. Histological examination is one of the most a
Externí odkaz:
https://doaj.org/article/a40b659f020643d09c221088bc449561
Autor:
Kengo Ando, Hiroki Iimori, Takumi Takahashi, Koji Ishibashi, Giuseppe Thadeu Freitas De Abreu
Publikováno v:
IEEE Access, Vol 9, Pp 102770-102782 (2021)
We consider the problem of uplink signal detection in scalable cell-free mMIMO (CF-mMIMO) systems subject to limited fronthaul link capacity and highly correlated channel conditions. Unlike centralized MIMO systems, in which all receive antennas are
Externí odkaz:
https://doaj.org/article/00aca99492cf49098fd352b00ed7b541
Publikováno v:
IEEE Access, Vol 8, Pp 200383-200394 (2020)
We propose an information-optimum approximate message passing (AMP) for quantized massive multi-input multi-output (MIMO) signal detection. A well-known strategy for realizing low-complexity and high-accuracy massive multi-user detection (MUD) is AMP
Externí odkaz:
https://doaj.org/article/6b4d136983294856a5867f0dcb5003a2