High resolution photoemission spectroscopy with soft X-ray synchrotron radiation has been applied to montmorillonite, one of phyllosilicate compounds. Charge build-up is inevitable in the powder sample due to its insulat ... more
The plasmonic chip which has wavelength-size grating pattern coated with a thin silver or gold film is applied to a sensitive biosensor because it can provide the enhanced fluorescence excited by the surface plasmon fiel ... more
We propose the system to analyze water permeability through the lipid bilayer. The lipid bilayer suspended over microwells changes its shape when the difference of osmotic pressure is formed by solution exchange. When th ... more
The use of microwells sealed with lipid bilayers is promising for biodevices that utilize protein functions. We have fabricated microwell structures on a Si substrate sealed with lipid bilayers. We have investigated Ca2+ ... more
Mesenchymal stem cell (MSC) is known to show responsiveness to the physical properties, such as stiffness and nano- to micro-structures, of the extracellular environment. However, the signaling mechanism has not been ful ... more
In this paper, we report on the development of a microfluidic device, which extract plasma from low volume whole blood (10 μL) aiming integration onto microfluidic system for micro analytical systems. The device autonomo ... more
Cell Adhesion on PEEK Surface with Gas Cluster Ion Beam Irradiation
論文No: ページ数: 4 日付: 2020/04/01
著者: 豊田 紀章（兵庫県立大学大学院工学研究科電子情報工学専攻）
キーワード : ガスクラスターイオンビーム，PEEK，表面改質，細胞付着性 gas cluster ion beam，PEEK，surface modification，cell adhesion
Gas cluster ion beam (GCIB) irradiation on polyether-ether ketone (PEEK) surface have been carried out to enhance the cell adhesion. GCIB creates nanostructures with size of 10 - 50 nm on PEEK surface. These nanostructur ... more
Supported lipid bilayer (SLB) is one of artificial biomembrane systems for the studies of transportation reactions through biomembranes using solid devices and surface scientific methods. A key step in the SLB formation ... more
We report an improvement of the Plasma-on-Chip device that enables plasma irradiation to single cells. Dielectric barrier discharge (DBD) structure was introduced and power consumption was reduced to 200 μW. The modifica ... more
Development of a Double Side Patterning Autonomous Centrifugal Microfluidic Dispenser and Evaluation of Stability
論文No: ページ数: 8 日付: 2020/04/01
著者: 岡本 俊哉（山梨大学大学院医工農学総合教育部工学専攻／日本学術振興会），浮田 芳昭（山梨大学大学院総合研究部工学域）
キーワード : 遠心マイクロ流体デバイス，両面成形，分注，自律制御，集積化，臨床現場即時診断 centrifugal microfluidic device，double side pattering，dispenser，autonomous，integration，point of care testing (POCT)
This paper reports on the fabrication and demonstration of a novel autonomous centrifugal microfluidic dispenser that microchannels are patterned on the double side of the microchip. The dispenser executes metering of di ... more
We demonstrated a mixing of different density liquids via Euler-force. Euler-force is an inertial force by increase/decrease of angular acceleration on the rotational coordinate system. The mixing method can be universal ... more
We demonstrate the on-chip synthesis of Au nanoparticles achieved by a microwave-induced reaction in a microfluidic channel. The chip structure consists of a waveguide and a microchannel through the inside of the wavegui ... more
Recently, we can always shoot digital videos with smartphone and share them with family or friends after editing them. It is necessary to check whether they are tampered by someone or not, if we use these digital videos ... more
論文No: ページ数: 8 日付: 2020/04/01
著者: Masaru Shiozuka (Graduate School of Engineering and Cross-Informatics Research Center, Tottori University/System Engineering Department, Melco Power Systems Co. Ltd.), Tappei Yotsumoto (System Engineering Department, Melco Power Systems Co. Ltd.), Kenichi
キーワード : target tracking，mobile agent，camera，target recognition errors
Target monitoring systems are widely used in various areas such as companies and schools for the prevention of crimes. Such systems require the operators to monitor the information sent from monitoring devices, such as c ... more
This technical report shows a measurement technique for the complex permittivity of a dielectric thin film with the cylindrical resonator having sliding end plates in the millimeter wave region. In order to eliminate the ... more
Least-squared Design of Sparse FIR Filters by Combinatorial Optimization―An Improvement of Branch and Bound Method―
論文No: ページ数: 7 日付: 2020/03/01
著者: 井谷 太郎（広島大学大学院工学研究科），中本 昌由（広島大学大学院工学研究科），小西 克巳（法政大学情報科学部）
キーワード : FIRフィルタ，スパース性，初期参照値推定，組合せ最適化，分枝限定法 FIR Filters，sparsity，estimation of the initial cost value，combinatorial optimization，branch and bound method
In order to reduce the computation amount of FIR filters, we consider design sparse FIR filters by using combinatorial optimization. We also consider solve this optimization problem by using branch and bound method. The ... more
IoT (Internet of Things) platforms have been drastically changing in the recent years. And a competitive axis of controller business has been also changing while edge computing attracts attention in the field of FA (Fact ... more
A database-driven PID (DD-PID) control method is one of the effective control methods for nonlinear systems. This scheme requires a database to tune control parameters adaptively. In the conventional DD-PID control metho ... more
Functional Cascading and Abstracted Energy Model in Systems Engineering and Model-Based Development
論文No: ページ数: 7 日付: 2020/03/01
著者: 中村 幸宣（（株）ISIDエンジニアリング），羽山 信宏（（株）ISIDエンジニアリング），山本 透（広島大学大学院工学研究科）
キーワード : システムズエンジニアリング，モデルベース開発，機能の階層化，エネルギーモデル Systems Engineering (SE)，Model-based development (MBD)，functional cascading，energy model
Systems Engineering (SE) and Model-based Development (MBD) attract attention from manufacturers to produce more complex products with less rework in order to satisfy higher demands. However, concrete methodology is not d ... more
In this paper, a distributed event-triggered formation control algorithm for a multi-agent system which consists of linear discrete-time agents is proposed. For agents to achieve a formation, it is necessary to communica ... more
In the database-driven control scheme, the fixed number of neighbors' data is selected to calculate controller parameters. Therefore, the inappropriate neighbors' data are occasionally chosen when query is not included i ... more
This paper proposes the opposite reference filter to realize the desired transient property in load control of hydraulic cylinder for Tunnel Boring Machine. In the case of load increase at the start of excavation, it is ... more
Several researches have formulated economic performance optimization problems taking account of a trade-off relation between process input and output variance. The present work introduces theoretical formulations that re ... more
Drowsiness can reduce working efficiency and result in dozing while driving. It is known that short naps are effective for eliminating drowsiness, so further analysis of short naps is required to clarify the relationship ... more
This study proposes a new design method for the mobile robot trajectory generation considering obstacle avoidance using mixed integer linear programming (MILP). In the proposed method, the velocity of a mobile robot as w ... more
The grid connection inverter is built in the PCS (Power Conditioning Subsystem) for the distributed power supply, such as photo voltaic system. Recently, there has been considerable advances in the research on power flow ... more
Generalized Predictive Control (GPC) is one of the model-based control methods. The control law is derived through the performance index calculated by sum of squares about the error between reference signal and output pr ... more
This paper shows that the plant impulse response can be estimated by the inverse discrete Fourier transform of the estimated plant frequency response that is the ratio of the discrete Fourier transforms of the prefiltere ... more
