NUTRITIVE VALUE OF NAPIER GRASS (PENNISETUM PURPUREUM SCHUM.) SILAGE ENSILED WITH MOLASSES BY GOATS

Yokota, H.,Okajima, T.,Ohshima, M. Asian Australasian Association of Animal Productio 1992 Animal Bioscience Vol.5 No.1

Napier grass (Pennisetum purpureum Schum.) harvested at an early growth stage was ensiled with 4% of molasses in a polyethylene bag silo which contained 15 kg of chopped forage each. Dry matter (DM) content of the silage was so low as 14.75%, although chemical quality of the silage was very high. Ratio of ammonia nitrogen to total nitrogen was 6.59%, and the pH value of the silage was 3.79. Nutritive value of the silage was estimated using goats and compared to that of a timothy hay as a reference ration. Feeding level of each rations was adjusted to a level of nitrogen (N) recommendation. DM and N digestibilities of the silage were 65.0 and 54.5%, respectively, but those of the timothy hay were 37.6 and 37.2%. Feeding of the napier grass silage maintained body weight and kept positive N retention. Ammonia N concentration in the rumen fluid in goats fed the napier grass silage increased after feeding, but blood urea concentration was constant. Feeding of the timothy hay did not increase ammonia N concentration in the rumen fluid, but increased blood urea concentration. These facts indicated that the napier grass silage had enough digestible DM and N for maintenance ration to goats.

EFFECT OF HARVEST INTERVALS ON THE CHEMICAL COMPOSITION AND NUTRITIVE VALUE OF NAPIER GRASS (Pennisetum purpureum Schum.) SILAGES FOR GOATS

Yokota, H.,Okajima, T.,Ohshima, M. Asian Australasian Association of Animal Productio 1994 Animal Bioscience Vol.7 No.4

Chemical composition and nutritive values of napier grass (Pennisetum purpureum Schum.) silages subjected to two cutting intervals were studies; 1st harvest in July (A), and 2nd (B) and 1st (C) harvests in November. Each forage was ensiled with 4% molasses in plastic bags and stored for 5 or 9 months. A feeding experiment with castrated goats was conducted from April to June of the following year. Dry matter (DM) and crude protein (CP) content of the harvests varied from 9.5 to 22.8% and 6.6 to 13.6% of DM, respectively. The dry matter content of the silages fed to the goats were 13.0 to 24.4%, because some effluent was removed from each silage before the feeding trial. The pH values of the silages were between 4.03 and 4.29. Goats were given sufficient silage to meet maintenance nitrogen requirements from napier grass silage. Silage C was not completely consumed, and the silage had low digestibilities of DM, CP, hemicellulose and cellulose. Nitrogen balance was slightly positive for goats consuming silage B and was negative for goats consuming silages A and C. Nitrogen utilization was discussed in terms of ruminal $NH_3-N$ and volatile fatty acid concentration in the rumen fluids. It is concluded that goats could not maintain N-equilibrium not only when a younger forage was consumed at a level of N requirement by a restricted feeding, but also when an older forage could not be consumed enough for N requirement because of feed intake limitation.

PBL Based Engineering Education to Cultivate Leadership Spirit in Postgraduate Students

Yokota Kazutaka,Maruoka Masatomo,Takaki Junji,Watanabe Shinichi 한국공학교육학회 2012 공학교육연구 Vol.15 No.5

Utsunomiya University started a 3-year project to develop an education program for postgraduate students to cultivate leadership spirits. The program is centered on a PBL in which each group of students is required to find an engineering or social problem themselves and start a project to solve the problem. Projects vary widely, from a straight product development to a summer program for children or local area development. Student groups are advised by senior engineers from industries. They give advice as to how a project should be managed and run, but will not give instructions. The PBL is compulsory for all students in the engineering master course students. The new education program also includes a series of lectures by engineers to show engineers’ job, activities, and career in the industry. Internship programs are also provided, in which students will be given opportunities to actively apply their knowledge and skills to real engineering tasks offered by the industry. The students are expected to gain something more than just experiences.

DIGESTION OF NAPIERGRASS SILAGE BY GOATS

Yokota, H.,Ohshima, M.,Okajima, T.,Ito, Y. Asian Australasian Association of Animal Productio 1989 Animal Bioscience Vol.2 No.3

Ductility of open piled wharves under reversed cyclic loads

Yokota, Hiroshi,El-Bakry, Hazem M.F. Techno-Press 2001 Structural Engineering and Mechanics, An Int'l Jou Vol.12 No.6

Ductility of open piled wharves under reversed cyclic loads has been investigated. Experimental testing of five wharf models having a scale of about 1:4 was conducted under the application of horizontal reversed cyclic loading. The experiments were designed to focus on the horizontal ultimate load, ductility and failure mode of the considered wharf models. Nonlinear numerical analyses using the finite element method were also performed on numerical models representing the experimentally tested wharves. The results of the experimental tests showed that open piled wharves possessed favourable ductile behaviour and that their load bearing capacity did not depreciate until a ductility factor of 3 to 4 was reached. The numerical analysis showed that the relative rotation that took place at the joints between the steel piles and the R.C. beam was responsible for a considerable portion of the total horizontal deformation of the wharves. Therefore, it was concluded that introducing the joint stiffness in calculating the deformations of open piled wharves was important to achieve reasonable accuracy.

NUTRITIONAL QUALITY OF WILTED NAPIER GRASS (Pennisetum purpureum Schum.) ENSILED WITH OR WITHOUT MOLASSES

Yokota, H.,Kim, J.H.,Okajima, T.,Ohshima, M. Asian Australasian Association of Animal Productio 1992 Animal Bioscience Vol.5 No.4

To investigate the effects of molasses addition at ensiling on nutritional quality of wilted napier grass, chemical quality and nutrient composition of the silages, digestibility and nitrogen retention at feeding trials were analysed using 4 goats in a cross over design. The results are as follows : 1. Molasses addition at ensiling decreased pH value (3.99) and ammonia nitrogen, and increased lactic acid content by 285% compared to non-additive silage (83.5 g/kg dry matter). 2. There were no differences in digestibilities of dry matter, crude protein, neutral detergent fiber, acid detergent fiber, hemicellulose and cellulose between the silage ensiled with molasses (MS silage) and the silage ensiled without molasses (WS silage). Urinary nitrogen excretion, however, significantly (p<0.05) decreased in goats fed the MS silage, and nitrogen retention was positive in goats fed the MS silages, but negative in goats fed the WS silage. 3. Acetic acid concentration in remained fluids in goats fed the MS silage was lower and propionic and butyric acid concentrations were higher than those in goats fed the WS silage. As water soluble carbohydrate content was higher in the MS silage than in the WS silage, a part of added molasses was still remained in the silage at the feeding trials and could be utilized for energy sources by the goats. Nitrogen may be also effectively utilized in goats fed the MS silage, because the silage were inhibited in proteolysis during ensiling.

Psychological dependence in Japanese animation films: A case of Rin Taro

Yokota, Masao,Koide, Masashi,Nomura, Koji Korean Society of Cartoon and Animation Studies 2004 만화애니메이션연구 Vol.- No.8

There are many opportunistic events that accidentally happen in Rin Taro's animations. However, audiences usually enjoy them in which dramatic catastrophic scenes inflict destruction on a city. Every acquaintance that a hero meets helps him to complete his wish in <Galaxy Express 999>. Rin's animations describe the hero as a person that every acquaintance is eager to help. This means that the fulfillment of hero's wish depends on sympathy of the other persons toward the hero. Thus, the hero is psychologically dependent on the others. However, Rin Taro gradually became to describe destructive aspects of psychological dependence. A female character in 'X' has a symbiotic relationship with a computer that has a human-like jealousy. At last, it kills her from its jealousy. Rin Taro had shifted from helpful psychological dependence to destructive one in his animations. Therefore, Rin Taro described Japanese mental state as psychological dependence in his animations in accordance with the present state in Japan.

A 3D ground penetrating radar imaging of the heavy rainfall-induced deformation around a river levee: a case study of Ara River, Saitama, Japan

Yokota, Toshiyuki,Inazaki, Tomio,Shinagawa, Shunsuke,Ueda, Takumi Korean Society of Earth and Exploration Geophysici 2009 지구물리와 물리탐사 Vol.12 No.1

This paper describes a three-dimensional ground penetrating radar (GPR) survey carried out around a levee of the Ara River in Saitama, Japan, where deformation of the ground was observed after heavy rainfall associated with the typhoon of September 2007. The high-density 3D GPR survey was conducted as a series of closely adjacent four directional sets of 2D surveys at an area surrounding vertical cracks on the paved road caused by deformations induced by heavy rain. The survey directions of the 2D surveys were 0, 90, 45, and -45 degrees with respect to the paved road and the intervals between lines were less than 0.5 m. The 3D subsurface structure was accurately imaged by the result of data processing using Kirchhoff-type 3D migration. As a result, locations and vertical continuities of the heavy rainfall induced cracks in the paved road were clearly imaged. This will be a great help in considering the generation mechanisms of the cracks. Moreover, the current risk of a secondary disaster was found to be low, as no air-filled cavities were detected by the 3D GPR survey.

The Clinical, Molecular, and Mechanistic Basis of RUNX1 Mutations Identified in Hematological Malignancies

Yokota, Asumi,Huo, Li,Lan, Fengli,Wu, Jianqiang,Huang, Gang Korean Society for Molecular and Cellular Biology 2020 Molecules and cells Vol.43 No.2

RUNX1 plays an important role in the regulation of normal hematopoiesis. RUNX1 mutations are frequently found and have been intensively studied in hematological malignancies. Germline mutations in RUNX1 cause familial platelet disorder with predisposition to acute myeloid leukemia (FPD/AML). Somatic mutations of RUNX1 are observed in various types of hematological malignancies, such as AML, acute lymphoblastic leukemia (ALL), myelodysplastic syndromes (MDS), myeloproliferative neoplasm (MPN), chronic myelomonocytic leukemia (CMML), and congenital bone marrow failure (CBMF). Here, we systematically review the clinical and molecular characteristics of RUNX1 mutations, the mechanisms of pathogenesis caused by RUNX1 mutations, and potential therapeutic strategies to target RUNX1-mutated cases of hematological malignancies.

Influence of water content in sub-flooring materials using adhesive on chemical compounds emission

Yokota, Tomohiro,Kato, Shinsuke,Seo, Janghoo,Chino, Satoko,Kim, Jonghun TAYLOR FRANCIS 2013 Journal of adhesion science and technology Vol.27 No.5