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PRODUCTS OF DIFFERENTIATION AND COMPOSITION ON BLOCH SPACES
Ohno, Shuichi Korean Mathematical Society 2009 대한수학회보 Vol.46 No.6
We will consider the questions of when the products of composition and differentiation are bounded and compact on Bloch and little Bloch spaces.
WEIGHTED COMPOSITION OPERATORS ON THE MINIMAL MÖBIUS INVARIANT SPACE
Ohno, Shuichi Korean Mathematical Society 2014 대한수학회보 Vol.51 No.4
We will characterize the boundedness and compactness of weighted composition operators on the minimal M$\ddot{o}$bius invariant space.
THE TOEPLITZNESS OF WEIGHTED COMPOSITION OPERATORS
Ohno, Shuichi Korean Mathematical Society 2018 대한수학회논문집 Vol.33 No.2
We will consider the asymptotic toeplitzness associated with weighted composition operators on the Hardy-Hilbert space $H^2$.
New Technology with Porous Materials: Progress in the Development of the Diesel Vehicle Business
Ohno, Kazushige The Korean Ceramic Society 2008 한국세라믹학회지 Vol.45 No.9
The long time of twenty years has passed since Diesel Particulate Filter (DPF) was proposed before the practical use. The main factors that DPF has been put to practical use in this time, are the same time proposal of the evaluation method of SiC porous materials linked to he performance on the vehicle, and that the nature of thermal shock required for the soot regeneration (combustion of soot) in the DPF is different from the conventional requirement for the rather rapid thermal shock. For the requirements, these includ demonstrating utmost the characteristic of SiC's high thermal conductivity, and overcoming the difficulty of thermal expansion of SiC-DPF by dividing the filter into segments binding with the cement of lower Young's modulus, and the innovation of technology around the diesel exhaust system such as Common-Rail system. As the results of these, the cumulative shipments of SiC-DPF have reached about 5 million, and it goes at no claim in the market.
Development of Centralized Voltage Control System for Distribution Systems
Ohno, Tetsufumi,Takano, Tomihiro,Itaya, Nobuhiko 대한전기학회 2013 The Journal of International Council on Electrical Vol.3 No.4
This paper proposes a centralized voltage control system for distribution system to meet the impact of PV growth. The system consists of a server machine at control center and many field devices like voltage regulators, line switches with sensor to measure power flow and voltage, and Information and Communication Technologies (ICT) network under Smart Grid paradigm. The system gathers measurement values from switches through the ICT network and chooses the best voltage profile and voltage regulators condition to achieve the profile with use of our advanced Optimal Power Flow. The test results at our Smart Grid facilities with 4MW photovoltaic generators are also given to prove the effectiveness of the developed system.
Preparation of Ultrafine Au-Pb Particles by Gas-evaporation Technique
Ohno Takehisa,Funaguchi Hironori 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1
Ultrafine Au-Pb particles prepared by two method, (1) simultaneous evaporation of Au and Pb in inert gas and (2) subsequent vapor condensation of Pb in a differentially evacuated tube onto flying Au nanoparticles prepared by gasevaporation technique, were observed by electron microscopy. In the method (1), the particles that grew at the region where the two smoke masses converged, consisted of alloy phases. In the method (2), the particles consisted of two or three phases of Au, , and Pb phases in turn from the inner part, Pb-rich particles being composed of only two phases of and Pb.
Stomach microbiota, Helicobacter pylori, and group 2 innate lymphoid cells
Ohno Hiroshi,Satoh-Takayama Naoko 생화학분자생물학회 2020 Experimental and molecular medicine Vol.52 No.-
The stomach has been thought to host few commensal bacteria because of the existence of barriers, such as gastric acid. However, recent culture-independent, sequencing-based microbial analysis has shown that the stomach also harbors a wide diversity of microbiota. Although the stomach immune system, especially innate lymphoid cells (ILCs), has not been well elucidated, recent studies have shown that group 2 ILCs (ILC2s) are the dominant subtype in the stomach of both humans and mice. Stomach ILC2s are unique in that their existence is dependent on stomach microbiota, in sharp contrast to the lack of an impact of commensal microbiota on ILC2s in other tissues. The microbiota dependency of stomach ILC2s is partly explained by their responsiveness to interleukin (IL)-7. Stomach ILC2s express significantly higher IL-7 receptor protein levels on their surface and proliferate more in response to IL-7 stimulation in vitro than small intestinal ILC2s. Consistently, the stomach expresses much higher IL-7 protein levels than the small intestine. IL-5 secreted from stomach ILC2s promotes immunoglobulin (Ig) A production by plasma B cells. In a murine model, stomach ILC2s are important in containing Helicobacter pylori infection, especially in the early phase of infection, by promoting IgA production.