Waseda University , abbreviated as Sōdai , is a private university mainly located in Shinjuku, Tokyo, Japan. As the second private university to be founded in Japan, Waseda University is considered to be one of Japan's most prestigious universities, consistently ranking amongst the top universities in Japanese university rankings. The university has many notable alumni in Japan, with seven Prime Ministers of Japan and many CEOs, including Tadashi Yanai, the CEO of UNIQLO.Established in 1882 as the Tōkyō Senmon Gakkō or Tōkyō College by Ōkuma Shigenobu, the school was renamed Waseda University in 1902 after the founder's hometown village. The university consists of 13 undergraduate schools and 23 graduate schools, and is one of the 13 universities in the Japanese Ministry of Education, Culture, Sports, Science and Technology's "Global 30" Project.The university holds a memorandum of agreement with Cambridge University, the University of Hong Kong, and Yale University among its 432 partnership institutions in 79 countries. Wikipedia.
Mitsubishi Group and Waseda University | Date: 2016-10-11
A mobile robot 1 having a plurality of kinds of moving forms includes a body unit 11 having a front face and a back face, four limb units 12 having a plurality of limb-side drive shafts, and front end tools 13 provided on a front end side of the limb units 12. A base end side of the limb unit 12 is connected to the body unit 11. The four limb units 12 are the same units. The body unit 11 and the four limb units 12 are movable by switching a front face side and a back face side so that a moving operation of the front face side and a moving operation of the back face side are symmetrical across the center of a thickness direction of the body unit 11.
Waseda University and Nissan Chemical Industries Ltd. | Date: 2016-03-09
A ion-conductive fused-ring quinone polymer includes recurring units of formula (1) and/or (2) below wherein each X is independently a single bond or a divalent group, and A^(1 )and A^(2 )are each independently an aromatic hydrocarbon ring or an oxygen atom or sulfur atom-containing aromatic heterocycle that forms together with two carbon atoms on a benzoquinone skeleton. This polymer is a material having charge-storing properties which, when used as an electrode active material, is capable of providing a high-performance battery possessing high capacity, high rate characteristics and high cycle characteristics.
Waseda University and Nissan Chemical Industries Ltd. | Date: 2016-03-09
Materials having charge-storing properties and made variously of dipyridine-fused benzoquinones of formula (1) below or derivatives thereof, dipyridine-fused benzoquinones of formula (4) below or derivatives thereof, or dipyridine-fused benzoquinone skeleton-containing polymers are provided. In the formulas, Ar^(1 )and Ar^(2 )are each independently a pyridine ring that forms together with two carbon atoms on a benzoquinone skeleton, or a derivative thereof. When used as electrode active materials, these charge storage materials are capable of providing high-performance batteries possessing a high capacity, high rate characteristics and high cycle characteristics.
MItsubishi Electric and Waseda University | Date: 2017-01-04
A measurement apparatus (100) comprising a three-dimensional point cloud model memory unit (199) for storing a three-dimensional point cloud model including a point cloud each showing a three-dimensional position; an image displaying unit (341) for displaying an image captured by a camera on a displaying device (901) and prompting a user to specify a position within the image; a measurement image point obtaining unit (342) for inputting the position within the image specified by the user as a measurement image point from an inputting device; a vector calculating unit (140) for calculating a vector showing direction from a center of the camera to the measurement image point inputted by the measurement image point obtaining unit (342); a neighborhood extracting unit (171) for extracting one neighboring point of the measurement image point from the point cloud of the three-dimensional point cloud model; a neighboring plane calculating unit (173) for calculating a particular plane including the one neighboring point extracted by the neighborhood extracting unit (171); and a feature position calculating unit (174) for calculating an intersecting point of the particular plane calculated by the neighboring plane calculating unit (173) and the vector calculated by the vector calculating unit (140) as a three-dimensional position of the measurement image point.
Waseda University and Nissan Chemical Industries Ltd. | Date: 2016-03-09
A fused-ring quinone-substituted polynorbornene has recurring units of formula (1) and/or (2) below. In formulas (1) and (2), A^(1 )is independently a substituent of formula (3) or (4) below, n is an integer from 1 to 6, and A^(2 )is a substituent of formula (5) or (6) below. In formulas (3) to (6), each X is independently a single bond or a divalent group, and Ar^(1 )and Ar^(2 )are each independently an aromatic hydrocarbon ring or an oxygen atom or sulfur atom-containing aromatic heterocycle that forms together with two carbon atoms on a benzoquinone skeleton. This polymer has charge-storing properties and, when used as an electrode active material, is capable of providing a high-performance battery possessing high capacity, high rate characteristics and high cycle characteristics.
Waseda University and Fuji Electric Co. | Date: 2016-11-17
A highly thermally conductive printed circuit board prevents electrochemical migration by inhibiting elution of copper ions. The printed circuit board is a metal-base printed circuit board including a metal base plate having an insulating resin layer and a copper foil layer stacked thereon in this order. In the printed circuit board, the insulating resin layer contains a first inorganic filler made of inorganic particles having particle diameters of 0.1 nm to 600 nm with an average particle diameter (D_(50)) of 1 nm to 300 nm, and a second inorganic filler made of inorganic particles having particle diameters of 100 nm to 100 m with an average particle diameter (D_(50)) of 500 nm to 20 m, and the first inorganic filler and the second inorganic filler are uniformly dispersed in the insulating resin layer.
News Article | April 24, 2017
(Waseda University) Researchers compared the photosynthetic regulation in glaucophytes with that in cyanobacteria, to elucidate the changes caused by symbiosis in the interaction between photosynthetic electron transfer and other metabolic pathways. Their findings suggest that cyanelles of the glaucophyte Cyanophora paradoxa retain many of the characteristics observed in their ancestral bacteria, and that C. paradoxa is the primary symbiotic algae most similar to cyanobacteria than other lineages of photosynthetic organisms in terms of metabolic interactions.
News Article | April 20, 2017
A group of Japanese researchers became the first in the world to discover that bacteria in the salivary microbiome exhibit circadian rhythm and act as if it were a part of the human body, just like organs and cells. A circadian clock of a 24-hour cycle exists in most organisms including humans, adjusting the circadian rhythm to control various biological functions which occur during the day and at night. The circadian clock transmits information to cells and organs in the body from the brain and sustains the organism's health. Until recently, circadian rhythm was a phenomenon mostly observed in cells and organs of organisms, but the researchers found that it also exists in the microbiome of saliva of humans. "We were able to prove that the salivary microbiome exhibit circadian rhythm, and our study will help promote healthier lifestyles," says Masahira Hattori, a professor of life science at Waseda University who participated in the research. "Instead of the conventional and invasive approach of drawing blood, doctors will be able to evaluate a person's stress level and health conditions by checking their saliva. They can look for disturbances in the circadian clock, which are associated with increased risk of developing lifestyle diseases, such as obesity, diabetes and cancer. It will also contribute to finding new ways to diagnose these diseases." This research is published in DNA Research. In this study, saliva samples were collected from six healthy men and women with 4-hour intervals for 3 days to examine changes in salivary microbiomes longitudinally during the day. Using the metagenomic analysis, the researchers studied in detail the types of bacteria in the salivary microbiomes and the oscillation of its composition. The analysis revealed the following: These observations suggest that human microbiomes across the body interact with various signals in response to the body's physiological conditions and act as if they are a part of the body like organs and cells. Because the factors or signals affecting the circadian oscillation of the human salivary microbiome are yet known, the research group intends to conduct further investigation and find out the differences in biological roles of diurnal and nocturnal bacteria in the oral cavity. Article: Circadian oscillations of microbial and functional composition in the human salivary microbiome, Lena Takayasu, Wataru Suda, Kageyasu Takanashi, Erica Iioka, Rina Kurokawa, Chie Shindo, Yasue Hattori, Naoko Yamashita, Suguru Nishijima, Kenshiro Oshima, Masahira Hattor, DNA Research, doi: 10.1093/dnares/dsx001, published 23 February 2017.
News Article | June 13, 2017
Our society is in need of ammonia more than ever. Chemical fertilizers, plastic, fibers, pharmaceuticals, refrigerants in heat pumps, and even explosives all use ammonia as raw material. Moreover, ammonia has been suggested as a hydrogen carrier recently because of its high hydrogen content. In the Haber-Bosch process, which is the main method of ammonia synthesis, nitrogen reacts with hydrogen using a metal catalyst to produce ammonia. However, this industrial process is conducted at 200 atm and high reaction temperatures of nearly 500°C. Additionally, ammonia production requires using much natural gas, so scientists have been looking for alternative methods to sustainably synthesize ammonia at low temperature. In a recent study, researchers from Waseda University and Nippon Shokubai Co. Ltd. achieved a highly efficient ammonia synthesis at low temperature, with the highest yield ever reported. "By applying an electric field to the catalyst used in our experiment, we accomplished an efficient, small-scale process for ammonia synthesis under very mild conditions," says Professor Yasushi Sekine of Waseda University. "Using this new method, we can collect highly pure ammonia as compressed liquid and open doors to developing on-demand ammonia production plants that run on renewable energy." This research was published in Chemical Science. In 1972, ruthenium (Ru) catalyst with alkali metals was found to decrease the reaction temperatures and pressures necessary for Haber-Bosch processing, and different methods have been suggested since this discovery. Unfortunately, the ammonia synthesis rate was hindered by kinetic limitations. "We applied direct current electric field to the Ru-Cs catalyst for our ammonia synthesis and obtained remarkably high ammonia field of approximately 30 mmol gcat-1h-1 with high production energy efficiency. Not to mention, this was done at low reaction temperatures and pressures from atmospheric to 9 atm, which is kinetically controllable. The energy consumption to produce ammonia was very low as well." The researchers were able to obtain such results by a mechanism called surface proton hopping, a unique surface conduction triggered by an electric field. "Our experimental investigations, including electron microscope observation, infrared spectroscopy measurements, and isotopic exchange tests using nitrogen gas, prove that proton hopping plays an important role in the reaction, as it activates nitrogen gas even at low temperatures and moderates the harsh condition requirements," explains Professor Sekine. The new technique also addresses obstacles in conventional ammonia synthesis, such as hydrogen poisoning of Ru catalysts and delay in nitrogen dissociation. Furthermore, the research results suggest that smaller-scale, more dispersed ammonia production could be realized, and building highly-efficient ammonia plants that run on renewable energy will become possible. Such ammonia plants will be expected to produce 10 to 100 tons of ammonia per day. Professor Sekine believes that their findings will be important for future energy and material sources. Published in Chemical Science Title: Electrocatalytic synthesis of ammonia by surface proton hopping Authors: Authors: R. Manabe, H. Nakatsubo, A. Gondo, K. Murakami, S. Ogo, H. Tsuneki, M. Ikeda, A. Ishikawa, H. Nakai, and Y. Sekine Link to this study in the Waseda University News Waseda University is a leading private, non-profit institution of higher education based in central Tokyo, with over 50,000 students in 13 undergraduate and 20 graduate schools. Founded in 1882, Waseda cherishes three guiding principles: academic independence, practical innovation and the education of enlightened citizens. Established to mold future leaders, Waseda continues to fulfill this mission, counting among its alumni seven prime ministers and countless other politicians, business leaders, journalists, diplomats, scholars, scientists, actors, writers, athletes and artists. Waseda is number one in Japan in international activities, including number of incoming and outgoing study abroad students, with the broadest range of degree programs taught fully in English, and exchange partnerships with over 600 top institutions in 84 countries.
Aprile E.,Columbia University |
Doke T.,Waseda University
Reviews of Modern Physics | Year: 2010
This article reviews the progress made over the last 20 years in the development and applications of liquid xenon detectors in particle physics, astrophysics, and medical imaging experiments. A summary of the fundamental properties of liquid xenon as radiation detection medium, in light of the most current theoretical and experimental information is first provided. After an introduction of the different type of liquid xenon detectors, a review of past, current, and future experiments using liquid xenon to search for rare processes and to image radiation in space and in medicine is given. Each application is introduced with a survey of the underlying scientific motivation and experimental requirements before reviewing the basic characteristics and expected performance of each experiment. Within this decade it appears likely that large volume liquid xenon detectors operated in different modes will contribute to answering some of the most fundamental questions in particle physics, astrophysics, and cosmology, fulfilling the most demanding detection challenges. From detectors based solely on liquid xenon (LXe) scintillation, such as in the MEG experiment for the search of the rare " μ→eγ " decay, currently the largest liquid xenon detector in operation, and in the XMASS experiment for dark matter detection, to the class of time projection chambers which exploit both scintillation and ionization of LXe, such as in the XENON dark matter search experiment and in the Enriched Xenon Observatory for neutrinoless double beta decay, unrivaled performance and important contributions to physics in the next few years are anticipated. © 2010 The American Physical Society.