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Article
Open AccessPeriodic oscillations of Doppler frequency excited by the traveling ionospheric disturbances associated with the Tonga eruption in 2022
The explosive eruption of the Hunga Tonga-Hunga Ha’apai volcano on 15 January 2022 generated atmospheric waves traveling around the Earth, which caused ionospheric disturbances on various spatio-temporal scale...
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Article
Open AccessSimultaneous observations of equatorial plasma bubbles with an all-sky airglow imager and a HF Doppler sounding system in Taiwan
High-Frequency Doppler (HFD) sounders at low-latitudes often detect characteristic oblique spreading Doppler traces in the spectrogram, known as Oblique Spread Structure (OSS). OSS has been expected to be gene...
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Article
Open AccessMonitoring of equatorial plasma bubbles using aeronautical navigation system: a feasibility study
It has long been known that field-aligned irregularities within equatorial plasma bubbles (EPBs) can cause long-range propagation of radio waves in the VHF frequencies such as those used for TV broadcasting th...
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Article
Open AccessMicro-Prudential Regulation and Loan Monitoring
We evaluate the value of loan monitoring systems for a bank controlled by a micro-prudential regulator. We investigate dynamic systems (an information channel that generates information flow about quality) and...
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Article
Open AccessSoftware-defined radio-based HF doppler receiving system
High-frequency Doppler (HFD) sounding is one of the major remote sensing techniques used for monitoring the ionosphere. Conventional systems for HFDs mainly utilize analog circuits. However, existing analog sy...
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Article
Open AccessPSTEP: project for solar–terrestrial environment prediction
Although solar activity may significantly impact the global environment and socioeconomic systems, the mechanisms for solar eruptions and the subsequent processes have not yet been fully understood. Thus, mode...
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Chapter
Robustness of Production Networks Against Economic Disasters: Thailand Case
This chapter studies the impacts of market concentration on risk-prevention incentives by closely observing the changes in the price and quantity in the hard disk drive (HDD) industry before and after the 2011...
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Chapter and Conference Paper
HF-START: Application in Aid of Radio Communications/Navigation
HF-START is HF Simulator Targeting for All-users’ Regional Telecommunications. This paper addresses the problems of worldwide existing radio propagation model and challenge on develo** the HF-START. Its poss...
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Article
Open AccessObservation of equatorial plasma bubbles by the airglow imager on ISS-IMAP
Using 630 nm airglow data observed by an airglow imager on the International Space Station (ISS), the occurrence of equatorial plasma bubbles (EPBs) is studied. In order to examine the physical mechanisms in t...
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Chapter
On the Design of Regional Insurance Markets for East Asia
This chapter identifies the central issues in designing a possible regional insurance scheme or mechanism for East Asia with a focus on a risk sharing mechanism for catastrophe risks households in the region. ...
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Article
Recognition of gram-negative and gram-positive bacteria with a functionalized conducting polymer film
In this work, we successfully developed bacterial templates on the surface of an overoxidized polypyrrole film using both gram-negative and gram-positive bacteria in which bacterial surface chemical structures...
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Article
Welfare effects of short-sale constraints under heterogeneous beliefs
This paper examines the welfare effects of short-sale constraints in an overlap** generations model of a financial economy with heterogeneous beliefs by focussing on the case of rational beliefs in the sense...
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Article
Equivalent comparisons of information channels
This article constructs a static model of information acquisition when the agent does not know exactly what pieces of information he is missing. A representation of preferences over information channels and me...
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Article
A Model of Financial Markets with Endogenously Correlated Rational Beliefs
This paper studies how communication amongst agents influences the equilibria of a financial economy. We set up a standard overlap** generations model with assets, while allowing for heterogeneous beliefs. T...
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Chapter
Modelling exchange of probabilistic opinions
This paper studies how communication or exchange of opinions influences correlation of beliefs. The paper focuses on a situation in which agents communicate with each other infinitely many times without observ...
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Article
Modelling exchange of probabilistic opinions
This paper studies how communication or exchange of opinions influences correlation of beliefs. The paper focuses on a situation in which agents communicate with each other infinitely many times without obser...
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Article
Ground magnetic perturbations associated with the standing toroidal mode oscillations in the magnetosphere-ionosphere system
The behavior of toroidal mode oscillations of standing Alfvén waves (refer to as standing Alfvén oscillations) in the coupled magnetosphere-ionosphere system is investigated using a trapezoid-shape magnetosphe...
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Chapter
Structural, Ultrastructural and Functional Correlations among Local Capillary Systems within the Brain
The cerebrovascular system supports the activities of brain cells by delivering essential substrates such as oxygen and glucose to brain tissue and removing the by-products of cerebral metabolism such as carbo...
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Chapter
Heterogeneous Cell Growth in Human Brain Tumors; an Analysis of the BrdU-Labeling Index and the NOR Histogram
Nucleolar organizer regions (NORs) are segments of DNA which encode ribosomal RNA (rRNA) and form loops within the nucleoli of cells [1]. Recently, many pathologists have begun to pay much attention to this re...
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Article
NADP+ reduction by a methanogen using HCOOH or H2 as electron donor
The resting cells of methanogen strain HU could be used as biocatalyser for converting exoge nous NADP+ into NADPH, using either formate or hydrogen as electron donor. To enhance the conversion efficiency of NADP...
