University of the Ryukyus, Okinawa, Japan - Articles

Design of a Switched Capacitor Negative Feedback Circuit for a Very Low Level DC Current Amplifier (Articles)

Hiroki Higa, Naoki Nakamura

Circuits and Systems Vol.4 No.4，August 12, 2013

DOI: 10.4236/cs.2013.44048 6,102 Downloads 8,475 Views Citations
A Very Low Level dc Current Amplifier Using SC Circuit: Effects of Parasitic Capacitances and Duty Ratio on Its Output (Articles)

Hiroki Higa, Ryota Onaga, Naoki Nakamura

Open Journal of Applied Sciences Vol.4 No.9，August 8, 2014

DOI: 10.4236/ojapps.2014.49044 3,037 Downloads 3,838 Views Citations
A Study on Flow Structure around a Bridge Beam and Behavior of Sea Water Mist (Articles)

Masaaki Ishikawa

Open Journal of Fluid Dynamics Vol.7 No.3，September 18, 2017

DOI: 10.4236/ojfd.2017.73022 798 Downloads 1,572 Views Citations
Re-Estimation of a Plausible Model of the Earthquake Fault as the Source of the 1771 Great Meiwa Tsunami Based on the Assessment of the Run-Up Height by Okinawa Prefecture, Japan (Articles)

Takeshi Matsumoto

Open Journal of Geology Vol.10 No.12，December 31, 2020

DOI: 10.4236/ojg.2020.1012062 389 Downloads 1,064 Views Citations
Numerical Analysis of Horizontal-Axis Wind Turbine Characteristics in Yawed Conditions (Articles)

Masami Suzuki

Open Journal of Fluid Dynamics Vol.2 No.4A，January 2, 2013

DOI: 10.4236/ojfd.2012.24A041 6,482 Downloads 9,930 Views Citations
This article belongs to the Special Issue on Thermophysics and Fluid Science
Root Reconstruction with Total Replacement of Ascending Aorta Using Hypothermic Circulatory Arrest and Selective Cerebral Perfusion for Moderately Dilated Distal Ascending Aorta (Articles)

Satoshi Yamashiro, Ryoko Arakaki, Yuya Kise, Hitoshi Inafuku, Yukio Kuniyoshi

World Journal of Cardiovascular Surgery Vol.3 No.3，July 5, 2013

DOI: 10.4236/wjcs.2013.33018 3,814 Downloads 5,659 Views Citations
Structure-Function Relationship of a Gellan Family of Polysaccharide, S-198 Gum, Produced by Alcaligenes ATCC31853 (Articles)

Masakuni Tako, Seiko kitajima, Takuya Yogi, Keiko Uechi, Masayuki Onaga, Yukihiro Tamaki, Shuntoku Uechi

Advances in Biological Chemistry Vol.6 No.3，May 26, 2016

DOI: 10.4236/abc.2016.63007 3,183 Downloads 5,292 Views Citations
The Novel Pyruvated Glucogalactan Sulfate Isolated from the Red Seaweed, Hypnea pannosa (Articles)

Masakuni Tako, Rintaro Ohtoshi, Kazutaka Kinjyo, Shuntoku Uechi

Advances in Biological Chemistry Vol.6 No.3，June 20, 2016

DOI: 10.4236/abc.2016.63010 2,256 Downloads 3,259 Views Citations
This article belongs to the Special Issue on Polysaccharide Research
Discovery of Unusual Highly Branched Galactomannan from Seeds of Desmanthus illinoensis (Articles)

Masakuni Tako, Yukihiro Tamaki, Takeshi Teruya

Journal of Biomaterials and Nanobiotechnology Vol.9 No.2，April 20, 2018

DOI: 10.4236/jbnb.2018.92009 896 Downloads 2,029 Views Citations
This article belongs to the Special Issue on Biopolymer Materials
Intravesical Infusion of Budesonide Foam Improves Symptoms in a Bladder Pain Syndrome/Interstitial Cystitis Rat Model (Articles)

Kimio Sugaya, Saori Nishijima, Katsuhiko Noguchi, Shiho Okitsu, Katsumi Kadekawa, Kennosuke Karube, Hideyuki Yamamoto

Open Journal of Urology Vol.10 No.5，April 14, 2020

DOI: 10.4236/oju.2020.105014 473 Downloads 1,300 Views Citations
Study of Interaction between Supersonic Flow and Rods or Jets Surrounded by Porous Cavity (Articles)

Nao Kuniyoshi, Minoru Yaga, Akito Koda, Isao Teruy, Masaaki Ishikawa

Open Journal of Fluid Dynamics Vol.2 No.4A，January 2, 2013

DOI: 10.4236/ojfd.2012.24A042 4,107 Downloads 6,584 Views Citations
This article belongs to the Special Issue on Thermophysics and Fluid Science
Experimental Study of the Response of Transonic Diffuser Flow to a Piezoceramic Actuator at Diffuser Throat (Articles)

Minoru Yaga, Yusuke Uechi, Hiroaki Ozono, Masaaki Ishikawa, Isao Teruya

Open Journal of Fluid Dynamics Vol.3 No.2A，July 24, 2013

DOI: 10.4236/ojfd.2013.32A003 3,245 Downloads 5,052 Views Citations
This article belongs to the Special Issue on Experimental and Computational Aerothermodynamics of Internal Flows
The Principle of Polysaccharide Gels (Articles)

Masakuni Tako

Advances in Bioscience and Biotechnology Vol.6 No.1，January 27, 2015

DOI: 10.4236/abb.2015.61004 11,020 Downloads 16,280 Views Citations
Structure of Ulvan Isolated from the Edible Green Seaweed, Ulva pertusa (Articles)

Masakuni Tako, Makie Tamanaha, Yoshiyuki Tamashiro, Shuntoku Uechi

Advances in Bioscience and Biotechnology Vol.6 No.10，October 30, 2015

DOI: 10.4236/abb.2015.610068 5,829 Downloads 7,228 Views Citations
This article belongs to the Special Issue on Separation, Purification and Structure Identification of Polysaccharides
Effect of inoculation with arbuscular mycorrhizal fungi on growth, nutrient uptake and curcumin production of turmeric (Curcuma longa L.) (Articles)

Kenji Yamawaki, Atsushi Matsumura, Rintaro Hattori, Arata Tarui, Mohammad Amzad Hossain, Yoshiyuki Ohashi, Hiroyuki Daimon

Agricultural Sciences Vol.4 No.2，February 26, 2013

DOI: 10.4236/as.2013.42011 6,021 Downloads 10,670 Views Citations
Very Short-Term Generating Power Forecasting for Wind Power Generators Based on Time Series Analysis (Articles)

Atsushi Yona, Tomonobu Senjyu, Funabashi Toshihisa, Chul-Hwan Kim

Smart Grid and Renewable Energy Vol.4 No.2，May 29, 2013

DOI: 10.4236/sgre.2013.42022 4,019 Downloads 6,809 Views Citations
Relationship between Voided Urine Volume and Urinary ATP in Healthy Volunteers (Articles)

Kimio Sugaya, Saori Nishijima, Katsumi Kadekawa, Katsuhiro Ashitomi, Hideyuki Yamamoto

Open Journal of Urology Vol.8 No.10，October 16, 2018

DOI: 10.4236/oju.2018.810031 681 Downloads 1,272 Views Citations
Cesarean Scar Pregnancy: A Report of 11 Cases and Review of the Literature Regarding Subsequent Pregnancy (Articles)

Chiaki Heshiki, Keiko Mekaru, Maho Miyagi, Sugiko Oishi, Kozue Akamine, Hitoshi Sugiyama, Tadatsugu Kinjo, Hitoshi Masamoto, Yoichi Aoki

Open Journal of Obstetrics and Gynecology Vol.6 No.1，January 11, 2016

DOI: 10.4236/ojog.2016.61002 4,297 Downloads 5,586 Views Citations
X-Ray Diffraction Is a Promising Tool to Characterize Coral Skeletons (Articles)

M. Azizur Rahman, Jochen Halfar, Ryuichi Shinjo

Advances in Materials Physics and Chemistry Vol.3 No.1A，April 28, 2013

DOI: 10.4236/ampc.2013.31A015 6,745 Downloads 11,466 Views Citations
This article belongs to the Special Issue on X-Ray Diffraction
Measurements of the Lower Uterine Segment at Term in Women with Previous Cesarean Delivery (Articles)

Tadatsugu Kinjo, Hitoshi Masamoto, Keiko Mekaru, Yusuke Taira, Yukiko Chinen, Hayase Nitta, Yoichi Aoki

Open Journal of Obstetrics and Gynecology Vol.6 No.1，January 11, 2016

DOI: 10.4236/ojog.2016.61001 4,541 Downloads 7,176 Views Citations

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