Hironobu Yamasaki

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Synaptic plasticity requires an activity-dependent, rapid, and long-lasting modification of synaptic character, including morphology and coupling strength. Here we show that a serine protease, neuropsin, directly and specifically modifies the synaptic adhesion molecule L1, which was localized to the presynaptic site of the asymmetric synapse in the mouse(More)
The physical interaction between the presynaptic vesicle release complex and the large cytoplasmic region linking domains II and III of N-type (Ca(v)2.2) calcium channel alpha(1)B subunits is considered to be of fundamental importance for efficient neurotransmission. By PCR analysis of human brain cDNA libraries and IMR32 cell mRNA, we have isolated novel(More)
The importance of L1 expression in the matured brain is suggested by physiological and behavioral studies showing that L1 is related to hippocampal plasticity and fear conditioning. The distribution of L1 in mouse brain might provide a basis for understanding its role in the brain. We examined the overall distribution of L1 in the adult mouse brain by(More)
Kyushu Electric Power Co., Inc. collects different sensor data and weather information to maintain the safety of hydroelectric power plants while the plants are running. It is very rare to occur trouble condition in equipment of hydroelectric power plants. And in order to collect the trouble condition data, it is hard to construct experimental power(More)
Kyushu Electric Power Co., Inc. collects different sensor data and weather information to maintain the safety of hydroelectric power plants while the plants are running. It is very rare to occur trouble condition in equipment of hydroelectric power plants. It is hard to construct experimental power generation plant and hydroelectric power plant to collect(More)
In this paper, we introduce an FPGA-accelerated partial image retrieval engine, suitable for a visualized document search system. To achieve efficient sharing and reuse of digitized documents, this system has the function of partial duplicate image retrieval. To meet the demand for stability and speed, we introduced a brute-force matching of the BRIEF(More)
Kyushu Electric Power Co., Inc. collects different sensor data and weather information to maintain the safety of hydroelectric power plants while the plants are running. However, it is very rare to occur abnormal condition and trouble condition in the power equipment. And in order to collect the abnormal and trouble condition data, it is hard to construct(More)
Kyushu Electric Power Co.,Inc. collects different sensor data and weather information to maintain the safety of hydroelectric power plants while the plants are running. In this paper, we consider that the abnormal condition sign may be unusual condition. This paper shows results of unusual condition patterns of bearing vibration detected from the collected(More)
We fabricated a low power sensor network processor with Deeply Depleted Channel (DDC) transistors of 65 nm technology, which has distinguishing device structure and enables variation of threshold voltage (Vth) of transistors to decrease. At the optimal voltage condition to achieve the same maximum operating frequency, measurement result shows that the DDC(More)