Takafumi Hayashi
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View article: Corrections to “Demand-Addressable Sensor Network: Toward Large-Scale Active Information Acquisition”
Corrections to “Demand-Addressable Sensor Network: Toward Large-Scale Active Information Acquisition” Open
Our previously published articles [2] , [3] , which reported preliminary results of the above article [1] , were erroneously left off in the References Section of the article.
View article: Discrepancies between imaging and histopathology in the evaluation of invasion depth of oral cancer
Discrepancies between imaging and histopathology in the evaluation of invasion depth of oral cancer Open
第40回日本口腔腫瘍学会学術大会ワークショップ「画像で切除範囲の正確な決定は可能か？」では，腫瘍の深達度の評価における術前画像と病理組織とのdiscrepancyについてdiscussionを行った。 歯肉癌症例では，骨髄浸潤が骨表示CT画像においてunderestimationとなった症例が提示され，そうした状況での18F-FDG PET/CTの有用性が確認された。また，PETテクスチャ解析が下顎歯肉癌の術式の選択など治療方針の立案に有用である可能性が示唆された。 T1・…
View article: Small-Cell Assisted Group Paging for Massive MTC in LTE Networks: Design and Analysis
Small-Cell Assisted Group Paging for Massive MTC in LTE Networks: Design and Analysis Open
Long-Term Evolution cellular networks are the main enabler for the massive Machine-Type Communications service and therefore must handle a large number of Machine-Type Devices (MTDs). To control the number of devices allowed to contend on …
View article: Posterior superior alveolar nerves contribute to sensation in the anterior teeth
Posterior superior alveolar nerves contribute to sensation in the anterior teeth Open
There is no available data on the occurrence rate of a converged alveolar canal, the detailed three-dimensional (3D) courses of alveolar canals/grooves (ACGs), or the contribution of each superior alveolar nerve to each area in the maxilla…
View article: Wildlife Detection System Using Wireless LAN Signals
Wildlife Detection System Using Wireless LAN Signals Open
The NTT Group considers the primary industry of agriculture an important field and is promoting development of innovative technologies that integrate agriculture with information and communication technology.This article introduces initiat…
View article: Artificial-Noise-Aided Precoding Design for Multi-User Visible Light Communication Channels
Artificial-Noise-Aided Precoding Design for Multi-User Visible Light Communication Channels Open
Recent developments in visible light communications (VLC) have focused on enhancing its security and privacy. This paper studies the physical layer security in VLC networks with multiple users when there is a single wiretap eavesdropper. I…
View article: Preparation of Nano-Sized Silver Particles and Organic-Inorganic Hybrid Material from Phenolic Polymer
Preparation of Nano-Sized Silver Particles and Organic-Inorganic Hybrid Material from Phenolic Polymer Open
アルデヒド基とヒドロキシ基を有する4-ヒドロキシベンズアルデヒド(4-HB)をモノマーとしてパラフォルムアルデヒド(PFA)と付加縮合させることでフェノール系ポリマー(Poly(4-HB-co-PFA))を合成した．Poly(4-HB-co-PFA)は水酸化ナトリウム水溶液に可溶であり，この溶液中でAg＋の還元を行った．この反応により，Ag＋はポリマー中で還元されナノサイズの銀微粒子として効果的に分散し，有機–無機ハイブリッド材料(Ag/Poly(4-HB-co-PFA))…
View article: A Case of Chronic Osteomyelitis of the Jaw Possibly Associated with Denosumab Used for the Treatment of Glucocorticoid-Induced Osteoporosis
A Case of Chronic Osteomyelitis of the Jaw Possibly Associated with Denosumab Used for the Treatment of Glucocorticoid-Induced Osteoporosis Open
Denosumab, the human monoclonal antibody to RANKL, was approved for the treatment of osteoporosis with its ease of administration once every 6 months.We report a case of a 74-year-old male patient, who has developed chronic osteomyelitis o…
View article: Retraction: “Demonstration of electron beam excitation laser using a GaInN-based multiquantum well active layer”
Retraction: “Demonstration of electron beam excitation laser using a GaInN-based multiquantum well active layer” Open
In this study, an electron beam excitation laser using a GaInN-based multiquantum well (MQW) active layer was investigated, and laser emission was observed for the first time from a GaInN-based MQW excited by an electron beam. This technol…
View article: A study on a dental device for the prevention of mucosal dose enhancement caused by backscatter radiation from dental alloy during external beam radiotherapy
A study on a dental device for the prevention of mucosal dose enhancement caused by backscatter radiation from dental alloy during external beam radiotherapy Open
The changes in dose distribution caused by backscatter radiation from a common commercial dental alloy (Au–Ag–Pd dental alloy; DA) were investigated to identify the optimal material and thicknesses of a dental device (DD) for effective pre…
View article: A soybean quantitative trait locus that promotes flowering under long days is identified as<i>FT5a</i>, a<i>FLOWERING LOCUS T</i>ortholog
A soybean quantitative trait locus that promotes flowering under long days is identified as<i>FT5a</i>, a<i>FLOWERING LOCUS T</i>ortholog Open
FLOWERING LOCUS T (FT) is an important floral integrator whose functions are conserved across plant species. In soybean, two orthologs, FT2a and FT5a, play a major role in initiating flowering. Their expression in response to different pho…
View article: Crater recognition technique that uses General Hough Transform
Crater recognition technique that uses General Hough Transform Open
This research describes development of recognition method for topographic features such as impact craters on DTM (Digital Terrain Models) of SELENE (SELenological and Engineering Explorer: KAGUYA). Because SELENE provides massive volumes o…
View article: Mandibular Osteonecrosis in a Patient Receiving Denosumab and Sunitinib
Mandibular Osteonecrosis in a Patient Receiving Denosumab and Sunitinib Open
We report a case of osteonecrosis of the jaw (ONJ) in a patient undergoing concurrent treatment with the molecularly targeted agents denosumab and sunitinib for metastatic renal cancer. A 68-year-old man with multiple lung and bone metasta…