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Institution

Utsunomiya University

EducationUtsunomiya, Japan
About: Utsunomiya University is a education organization based out in Utsunomiya, Japan. It is known for research contribution in the topics: Laser & Holography. The organization has 4139 authors who have published 6812 publications receiving 91975 citations. The organization is also known as: Utsunomiya daigaku.


Papers
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Journal ArticleDOI
TL;DR: Comprehensive comparisons of endocrine signaling pathways between insects and daphnids may shed light on the regulatory mechanisms of various biological phenomena and, moreover, evolutionary processes of arthropod species.

40 citations

Journal ArticleDOI
TL;DR: In this paper, the authors showed that the salt tolerance mechanisms of reed plants include an improved ability to take up K+ to prevent an influx of Na+ and an improvement ability to exclude Na+ from the roots.
Abstract: Reed plants (Phragmites australis Trinius) grow not only in fresh and brackish water areas but also in arid and high salinity regions. Reed plants obtained from a riverside (Utsunomiya) were damaged by 257 mM NaCl, whereas desert plants (Nanpi) were not. When the plants were grown under salt stress, the shoots of the Utsunomiya plants contained high levels of sodium and low levels of potassium, whereas the upper part of the Nanpi plants contained low levels of sodium and high levels of potassium. One month salt stress did not affect potassium contents in either Utsunomiya or Nanpi plants, but it did dramatically increase sodium contents only in the Utsunomiya plants. The ratio of K+ to Na+ was maintained at a high level in the upper parts of the Nanpi plants, whereas the ratio markedly decreased in the Utsunomiya plants in the presence of NaCl. Accumulation of Na+ in the roots and Na+ efflux from the roots were greater in the Nanpi plants than in the Utsunomiya plants. These results suggest that the salt tolerance mechanisms of Nanpi reed plants include an improved ability to take up K+ to prevent an influx of Na+ and an improved ability to exclude Na+ from the roots.

40 citations

Journal ArticleDOI
TL;DR: A novelrotaxane composed of two 25-membered crownophanes and one axle molecule having two anthryl end groups was successfully synthesized via covalent bond formation followed by aminolysis, and can incorporate caesium ion into the space between the two macrocycles as a 1 : 1 sandwich-type complex.

40 citations

Journal ArticleDOI
TL;DR: This paper attempts to testify the performance of Mn(II) adsorption by a novel adsorbent, natural leaf that was partially decomposed at moderate temperature and the proposed preparation method and the basic guidelines regarding the adsorbents' selection seem promising in the engineering practices.

40 citations

Journal ArticleDOI
TL;DR: The needle penetrometer was developed in Japan and released as a suggested method by the Rock Mechanics Committee of the Japan Society of Civil Engineers (JSCE-RMC 1980).
Abstract: Estimation of mechanical properties of intact rock is usually required for assessment of the stability of rock structures. They are also important elements of the rock classifications used in empirical assessment of rock masses. Measurement of these properties requires laboratory testing, which must be performed on samples of certain dimensions to fulfill testing standards and/or suggested methods. Laboratory tests are also time-consuming due to sample preparation, as well as experimental procedures often require high-capacity loading devices. High-quality core samples recommended by standards and/or suggested methods for the laboratory tests cannot always be obtained, particularly from weak and clay-bearing rocks. For these reasons, some simple and inexpensive index test methods have been developed to indirectly estimate the mechanical properties of intact rock (ISRM 2007). However, even preparation of smaller samples from weak and clay-bearing rocks for some index tests is still troublesome. In addition, geo-engineering and/or restoration studies on natural and man-made historical rock structures and monuments or buildings built with masonry construction techniques may require the determination of mechanical properties of intact rock. Sampling from such ancient sites is not allowed due to preservation, and environmental and other concerns resulting in the lack of mechanical data for those studies. To overcome the above-mentioned difficulties, a portable, lightweight and non-destructive testing device, called needle penetrometer, was developed in Japan and released as a suggested method by the Rock Mechanics Committee of the Japan Society of Civil Engineers (JSCE-RMC 1980). Similarly, Public Works Research Institute (PWRI 1987) published a draft manual of the test for weak rock mass Please send any written comments on this ISRM Suggested Method to Prof. Resat Ulusay, President of the ISRM Commission on Testing Methods, Hacettepe University, Department of Geological Engineering, 06800 Beytepe, Ankara, Turkey.

40 citations


Authors

Showing all 4148 results

NameH-indexPapersCitations
Kazuhito Hashimoto12078161195
Yoshinori Yamamoto8595028130
S. Uehara7860223493
Minghua Liu7467920727
Akira Fujishima7029969335
Satoshi Hasegawa6970822153
Donald A. Tryk6724025469
Hiromu Suzuki6525015241
Kunio Arai6429315022
Kazuo Suzuki6350717786
Jin Wang6019610435
James B. Reid6024611773
Richard L. Smith5930211420
Isao Kubo5830311291
Takao Yokota5724511813
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20236
202231
2021247
2020315
2019315
2018289