Study on Improvement of Indonesia Shipbuilding Productivity with Theory of Constraints

Indonesia is a big country having big population, huge area and huge Exclusive Economic Zone area. For world harmonized growth, it is quite important to realize steady economy growth on Indonesia. Growth of Indonesia’s shipbuilding industry specifically is an important part to achieve Indonesia’s maritime vision, but by far as for the shipbuilding market, 3 major countries, China, South Korea and Japan have obtained almost 100% share, which means it is quite difficult to increase the world share. In the volatile marine world, fluctuating oil price often affect production capacity, and investment decision is hard to get with TOP management. Indonesia shipbuilding industry has big mission under severe management and environmental condition. We clarify basic dilemma / conflict inhibiting the growth of Indonesia shipbuilding industry under assumption of severe management environmental condition, with Theory of Constraints (TOC). The basic dilemmas are solved by erasing the reason of existence of opposite activity and the Indonesia shipbuilding ever-lasting development logic is proposed with the solution of basic dilemma

Simulations on Prevalence of Echinococcus multilocularis in Hokkaido on the Basis of Vole Population Dynamics

In our study, we have investigated the influence of the intermediate host population density on the prevalence of Echinococcus multilocularis in the definitive host using a mathematical model of transmission. For the vole population (intermediate host) in Hokkaido, a model of population dynamics has been constructed in this paper which follows the seasonal and annual fluctuations. In the northeastern area, the vole density appears to fluctuate periodically with a 4 year cycle. The prevalence of Echinococcus multilocularis in the fox population (definitive host) can be affected by the density of vole through the fox ingesting infectious voles. Therefore we have prepared a food habit function of foxes and the logistic distribution has been proposed. The simulations which have been carried out using the mathematical model for transmission of Echinococcus multilocularis together with the vole dynamics have indicated that the prevalence in foxes is correlated and synchronized with the population dynamics of vole. In addition they have also made us recognize that it is necessary to introduce a suitable food habit function into the transmission model

Distribution of D-amino acids in vinegars and involvement of lactic acid bacteria in the production of D-amino acids

Levels of free D-amino acids were compared in 11 vinegars produced from different sources or through different manufacturing processes. To analyze the D- and L-amino acids, the enantiomers were initially converted into diastereomers using pre-column derivatization with o-phthaldialdehyde plus N-acethyl-L-cysteine or N-tert-butyloxycarbonyl-L-cysteine. This was followed by separation of the resultant fluorescent isoindol derivatives on an octadecylsilyl stationary phase using ultra-performance liquid chromatography. The analyses showed that the total D-amino acid level in lactic fermented tomato vinegar was very high. Furthermore, analysis of the amino acids in tomato juice samples collected after alcoholic, lactic and acetic fermentation during the production of lactic fermented tomato vinegar showed clearly that lactic fermentation is responsible for the D-amino acids production; marked increases in D-amino acids were seen during lactic fermentation, but not during alcoholic or acetic fermentation. This suggests lactic acid bacteria have a greater ability to produce D-amino acids than yeast or acetic acid bacteria

A model for the transmission of Echinococcus multilocularis in Hokkaido, Japan

A mathematical model for Echinococcus multilocularis transmission would be useful to estimate its prevalence and manage control strategies. We propose a mathematical model which quantitatively describes the transmission of E. multilocularis in Hokkaido, Japan. The model takes into account the influence of the dynamics of both the definitive and the intermediate host populations, which show large scale seasonal variations as they are wild animals. The simulations based on the model clarify the mechanism for the seasonal transmission of E. multilocularis quantitatively, notwithstanding a lack of seasonal prevalence data. At present, human alveolar echinococcosis is prevalent throughout the mainland of Hokkaido. The risk of being infected with alveolar echinococcosis in the human population has been investigated by analyzing the seasonal fluctuation of parasite egg dispersal in the environment, which should be necessary for planning more suitable preventive measures against E. multilocularis.</p

ニホン デノ スペインゴ オ センコウゴ ニ スル センモン カモク 2018ネンド ノ スペインゴガク カモク

本研究は2018年度（平成30年度）のスペイン語学科カリキュラムの記録を目的とする。2018年現在はもちろんのこと、過去にさかのぼっても、日本のスペイン語学科でスペイン語の授業が週に何コマあるのか、驚くほど把握できない。本稿では、スペイン語を専門にする日本の大学におけるスペイン語学関連科目の設置状況を見ていく。スペイン語学に関連する科目のうち、「概論」「教職課程」「スペイン語史」などの専門科目が学べるかを調査した。科目名だけで判定したのではなく、シラバス記載内容を吟味して一覧にした結果、多くの大学がまだまだこの3つを重要視している。一方、この3つのいずれも学べない大学も出現してきている。専門科目の縮小は昨今の教育の質向上と矛盾する。スペイン語学科目の現況を指摘することによって、教育の質低下を回避できる可能性がある

ニホン ニオケル スペインゴ イスパニアゴ ノ キョウイン メンキョ

日本におけるスペイン語・イスパニア語の教職課程について、ほとんど論じられることがない。教職課程といえば、2019年度に再認定が必要となった。スペイン語に関する教職課程も例外ではない。スペイン語・イスパニア語の教員免許に関する先行研究を見たあと、スペイン語・イスパニア語の免許取得者の実情、スペイン語・イスパニア語の教員免許状が役に立つ機会は本当にないのか、2019年度の教職課程再認定後に変化があったのかを検証する。結論としては、2019年度現在、スペイン語・イスパニア語教員免許状が取得できる大学は12あり、そこで取得した教員免許状が役に立つ教員公募は茨城県のみであったことを伝えたが、それよりも心配なのは、2018年度は教員免許状取得者が 0 の大学があったり、教科教育法の隔年開講などで、将来的にスペイン語・イスパニア語の教員免許状取得者が先細りしそうなことであることを述べた

Compressor with Turning-Paired Vane and Piston

With the aim of energy saving of room air conditioners, we are addressing higher efficiency of the rotary compressor that is used most in the world. We focused on a new rotary compressor equipped with a mechanism to restrict the rolling motion of the piston, and performed the dynamics analysis. The new rotary compressor has a small pillar at the tip of the vane and constitutes a turning pair of vane and piston, and it limits the rolling motion of the piston. By means of limiting the piston rotation, the heat transfer to the suction process from the compression chamber will be suppressed, and we can expect higher compression efficiency. Before examining the compression efficiency, we performed the dynamics analysis of this new rotary compressor and examined the forces and dynamic behavior of the components, and the mechanical efficiency of the compressor. Then we have following results. (1)We can clarify the contact point between the vane tip and piston in the turning pair by considering the equilibrium of forces and moments acting on the vane. (2)By reducing the diameter of the pillar at the vane tip, the vane tip friction loss is reduced, and the mechanical efficiency is improved. (3)The new rotary compressor has less vane tip friction loss and on the other hand greater friction loss between the vane side and the cylinder in comparison to the rolling piston rotary compressors. As a result, both compressors have almost the same mechanical efficiency