Kemari(蹴鞠) is a traditional ball game in Japan, in which there are many rules and manners to be observed. Since the time Kemari was introduced from China to Japan in the Nara period, it developed independently in Japan. Rules and manners concerning Kemari were gradually improved, and were systematized in the Kamakura period. After then, Kemari master gave his pupils a written material that contained explanations of the rules, the techniques and the manners.
Mari no Engi(鞠之縁起) in my possession is one of those variants of explanation text, which was copied by hand in the second half of the Edo period. The contents include not only the rules, the techniques and the manners, but also include the legendary origin and history of Kemari. The text shows how the custom of Kemari has been handed down in the tradition from generation to generation.
In this paper, I reprint the text and give a commentary on it.

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In econometrics it is important to distinguish whether two variables are correlated or not. Distribution of correlation coefficient of n pairs of samples from two independent normal populations is theoretically known. Based on the distribution and the value of the sample correlation coefficient we decide whether the two variables are correlated or not. We compute distribution of correlation coefficient of n pairs of samples from two independent uniform populations by computer simulation. We see that we cannot distinguish the two distributions of the correlation coefficients when n<11. When n>11, however, the two distributions are different definitely.

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Mongolian and Japanese are classified as agglutinative languages. Moreover they have the same sentence structure called SOV. However, some combinations of Mongolian word stems and particles have letter addition or elimination. Mongolian also has many types of vowels and vowel harmonies. These features of Mongolian make it hard to learn Mongolian and to translate into Japanese.
This paper reports on a support tool for Mongolian-Japanese translation and proposes simple rules of grammar. We made an electronic dictionary based on these rules and evaluated the tool experimentally.

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The Dairy of Sanuki no Suke was written by a maid serving the Emperor of the Heian period. At the same time as she served the Emperor, she was involved in court rituals. There is no other diary written by a woman in such a position. In this respect, it can be said that this work is a valuable historical material, but many researchers have not noticed this fact.
Therefore, in this paper I will verify the historical value of this work and also verify the problems. I also consider how this work is appreciated and properly operated as a historical material.

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Paula Hawkins's sensational world bestseller A Girl on the Train (2015) was accepted as a psychological thriller as soon as it appeared. Her eagerly-awaited second novel Into the Water (2017), however, seems to have disappointed most of her fans who expected a still more exciting and mysterious thriller than her first one. In fact, one crime novel critic did not conceal his utter disappointment, mentioning it would not be the best choice for crime readers because "the mystery and suspense elements of this story take a backseat." Interestingly enough, he could not help admitting that the novel in question is beautifully written, and he even recommended this book he disliked to those who love literary fiction or women's fiction. After all, he is a good critic, correctly pointing out Into the Water is a novel which satisfies academic readers much more than crime fiction lovers.
Despite the fact that many readers undoubtedly regard Ms. Hawkins as a crime writer, it is doubtful that she thinks of herself as one. Reportedly she has no interest in Sherlock Holmes, and her editor of Riverhead usually avoids such genre. Which shows that Paula Hawkins is a serious writer who, I imagine, likes great authors of English and American literature such as Henry James, Virginia Woolf, and even Herman Melville. Her notorious techniques in the new novel, like the frequent changes of more than ten point-of-view characters, appear to derive from the l9th-20th centuries' literary experiments. Perhaps a large number of people who want just an entertainment for a weekend night will be unexpectedly at a loss to find the book they bought so complicated that they can hardly understand what is going on and cannot afford to reason who killed Nel Abbot, although Ms. Hawkins prepares a lot of hints.
If you want to enjoy Into the Water to your heart's content, you should read it at least twice. Contrary to your first impression, the novel is quite similar to A Girl on the Train: Libby (the same name of the unfortunate baby drowned in the bathtub) is drowned again by a mob of hateful men this time at the opening of the new book. Paula Hawkins's common theme becomes clear due to this repetition. The death of the first Libby was brought by Mac, the irresponsible man who left the young Megan when she most needed him. Tom, another egoistic man, killed Megan when he knew she was pregnant. The heroines Rachel and Anna, though they were ex-enemies, took revenge on him with a corkscrew. Into the Water is a double–plot novel consisting of Nel's mysterious death and Katie’s pathetic suicide. The former is a real whodunit which reminds me of Agatha Christie’s The Murder of Roger Ackroyd (1926), but Ms. Hawkins prefers the latter with a strong, feministic massage somewhat related to #MeToo trend.
Katie’s story is not a mystery at all. She loved secretly Mark Henderson, a good-looking teacher very popular among female students. Since Katie was still a fifteen-year-old girl, Henderson was afraid of being arrested and put into jail where he would probably be the target of manly convicts. Katie drowned herself, trying to prevent their forbidden relation from being known to the public. Lena, her best friend who loved her, exacted revenge on Henderson, stabbing him with a "nail" (a variation of the corkscrew in the first novel) and pushing him off a cliff. This bloody killing is not narrated, the scene intentionally omitted but alluded with enough hints. Seemingly, Paula Hawkins is disappointed in men completely in Into the Water, where there is no Kamal. Again she succeeds in letting her heroine kill unpunished another handsome man as the scapegoat for the violent men who have abused women for many years.

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This paper is a guide to Foundations Reading Library, the 1-7 level graded readers series of 42 full-color illustrated books, whose characters are mainly fictional “Bayview High School” students of diverse origins including Japanese and Koreans in the United States. This series is quite unique since many of introductory graded readers generally tend to be children’s books, or fairy tales written for children. Of course, it cannot be denied both Grimm’s and Andersen’s masterpieces are still worth reading for young adults, and even the graded readers for English-speaking children like Oxford Reading Tree and Info Trails are also readable and informative for high school students learning English as a foreign language. In reality, however, ordinary, Japanese high school students, especially male students, avoid those books probably because they look too childish for them to choose. Although there are stories retold or newly written for such students, they do not seem interesting enough to attract their attention. As for Foundations Reading Library, the main characters of the series are ordinary, American high school students, whom the Japanese counterparts can easily sympathize with. American high school life always looks so attractive to them, for example, part-time jobs, skateboards, rock concerts, rock bands, basketball, sports meets, bike races, summer camps, and dances. Furthermore, this series includes some extraordinary adventures such as fights against gangsters and robbers. Far from boring, Foundations Reading Library provides ideal textbooks to those who want to enjoy learning English from the basics by themselves.

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A particle kinetic energy probability distribution eqn. (5) is lead from Maxwell distribution. Based on the eqn. (5), the proportion of number of the molecules bearing kinetic energy above a certain activation energy is calculated by two methods, and is used to simulate the temperature dependence of chemical reaction rate.
By performing numerical integration of the eqn. (5), it was possible to obtain the result with sufficient accuracy in the range where the activation energy is less than about 40 kJ/mol. However, it was difficult to obtain calculation result with enough precision in the region of activation energy of about 40 kJ/mol or more, from limitation of the time necessary for a calculation practically.
Since the formula (5) is able to be approximated to exponential decay in the high energy region, it could be considered that it was appropriate to approximate the area on the right side of a certain threshold value x = a to the function value f(a) directly. This approximation gave satisfactory results qualitatively in the range of wide activation energy. In this method, it is unnecessary to perform repetitive processing to enlarge processing time, and it is only necessary to read the function value at once. Therefore, for any students, it is effective to examine various conditions while making trial and error.

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I developed the teaching materials for the purpose of a student learning such as the meaning of confidence interval, and the difference between standard deviation of a sample and the standard error of the mean, and so on, by analyzing numerical data by his own hand.
By performing data analysis by the Excel, it is shown that a set of pseudo random numbers (the sample-1, n = 10⁶) generated by the programming source code (1), which is written in "Decimal BASIC", could be regarded as equal to a sample which is sampling from the population with the standard normal distribution. Therefore it turns out to be possible to treat the random numbers generated by the source code (1) as hypothetical measurements including errors obeying the axioms of error.
At first, a set of random numbers (sample-3, n=500) is generated by the source code (1), and then, copied onto the Excel sheet, in the teaching materials. A learner makes scatter diagrams, box-and-whisker plots, and histograms based on these data, and visually recognizes the distribution of the random numbers. Fitting Gaussian line to the histogram will aid in geometrical understanding of the meaning of the statistics such as mean and the standard deviation of the sample. Finally, 30 samples of n = 25 are generated, and analyzed. Comparing the basic statistic of each samples shows that there is possibility of the true value (the mean of the population) being not included in the range of 95 % confidence interval of the mean of the samples.

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For the introduction to learn algorithm structurally, a visual programming language represented by Scratch or Google Blockly spreading over widely seems to be suitable. It may not be all the learners, but a certain student would need the knowledge of text-type programming language, when an enthusiastic student is going to make a more complex program. Therefore, I tried the mediation from a visual language to a text-type language by copying the form of the blocks in a visual language working as a subroutine, with a text-type program language. Other than the short source code that I could use as a distribution document in a catered lecture, I made long program "RoboSteering.bas" which included game characteristics to attract the interest of the student at the same time.

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I described the following contents that I checked out as it is needed in the work, for contribution to efficiency of the future work. At first, I showed a procedure to set up a test or a questionnaire as the assessment on a course of the Blackboard Learn™. Then, I showed a method to download a result file, and to sum it up on Excel(R). In the processing with Excel, it is able to use "countif" function to count the number of cells in line with search condition written in a certain cell. For the first, the answers are added up entirely in this way to make the whole total sheet. After the sheet is copied, by erasing the values of the answer lines those are in disagreement with the conditions, it'll be the partial total sheet. To assemble the whole and partial total of the answers written down on separated sheets to one sheet, it is effective to use an "indirect" function to refer the values in the target cells of separated sheets. The functions is able to refer to a value of a target cell with a pointer to a certain cells containing the address of the target cell.

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At the same time as the mixed-department classes for the first- and the second-year students were introduced in 2006, physics examinations for the first- and the second-year students were required a big change -- all teachers giving lectures on the same course must do examinations using the same problems. The trial-and-error process of adaptation to such an environmental change is summarized, which finally determined the present format of physics examinations for the first- and the second-year students in the mixed-department classes.

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Plants have various color pigments. Many plants have fruits and flowers of vivid colors such as orange, red, purple and blue. Anthocyanins with anthocyanidins as aglycone are one group of plant pigments. Each type of anthocyanidins is determined by the substrate specificity of dihydroflavonol 4-reductase (DFR) in its biosynthetic pathway and has a major influence on the determination of plant color. We performed a phylogenetic analysis of DFR genes, which are key enzymes of this anthocyanidin biosynthesis pathway. We collected 170 DFR clones in various plants by browsing database (NCBI). The collected DFRs were classified into ten groups according tosequence similarity. The consensus sequences within each group were aligned, and amino acids involved in the responsible region for determination of the substrate specificity of DFR have been shown. In addition, DFR's intron sites were highly conserved. These results would be useful to unveil the relationship between DFR and plant pigments.

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I made the Baseball Scoreboard Application software for iPhone/iPad. To connect a liquid crystal display, the picture on the iPhone/iPad is output on the display, some audiences can watch it. Everyone could use this application software easily now to adopt an intuitive operating method (a gesture on the iPhone/iPad screen e.g. swipe or tap). When this scoreboard was used in the baseball games, it was get good evaluation from some audiences.

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We conducted human resources development course of NC (numerical control) machining utilizing VERICUT, used for simulating multispindle machining, in National Institute of Technology, Gunma College. Participants learned NC programs to create tool paths by using of CAM software Mastercam and simulated motion of tool path and material removal process by VERICUT. In addition, demonstration of 4-axis machining was also executed with multi-tasking machine (Mazak INTEGREX j-200).

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Educational program of multispindle machining has been developed by using of VERICUT CNC simulation. VERICUT simulation demonstrated machining process in workshop practice class of department of mechanical engineering. Students took a view of tool motion and material removal process on screen effectively. Consequently, it was found that VERICUT simulation have a useful role in the education of multispindle machining.

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Henry Swinden's The History and Antiquities of the Ancient Burgh of Great Yarmouth in the County of Norfolk is one of the most remarkable achievements in historical writing in the eighteenth-century England. It has almost one thousand pages, filled with narratives based on documents. In one chapter, Swinden provides detailed narratives on political conflicts in Yarmouth during the 1620s and 1630s between a group of puritan aldermen and their anti-puritan opponents. The anti-puritan aldermen attempted to introduce a less popular form of town government by revising Yarmouth's charter. Each group struggled to secure considerable backing at court. Privy councillors advised town's ruling elites to accommodate internal disputes as quickly as possible.
However, in some crucial points, Swinden's narrative distorts the facts. Swinden shows no sympathy for the non-puritan aldermen. He also underestimates the importance of the part played by the earl of Dorset, the high steward of Great Yarmouth, who tried to protect that corporation from full-scale division. Through the intensive research on the Swinden's narrative, this article tries to show how an eighteenth-century historian understood the political conflict in the preceeding century.

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Automatic reference point placement method for voice morphing is reported in this paper. Voice morphing is one of fundamental voice editing methods to blend feature vector sequences of two voices based on corresponding reference points. Reference points are basically assigned by hands, and depends on the quality of voice morphing output. Moreover, assigning reference points is a time-consuming task. The proposed method realizes to assign reference points on spectrogram in time- and frequency-domain automatically based on temporal decomposition (TD) and line spectral frequency (LSF). As results of two-speakers’ voice morphing, the proposed method was worked well by using voice and its transcription as inputs.

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Due to the accelerated progress of knowledge and information technology, as typified by artificial intelligence, education is required to acquire knowledge and skills; yet concurrently, cultivating the abilities of thought, judgment, and expression is necessary as well, and "deep learning" and "active learning" have attracted much attention in school education. The National Institute of Technology clearly stated the promotion of active learning using information and communication technology in the plan of 2014 of the 3rd Medium Term Plan.
In response to this, the Education and Research Committee at the National Institute of Technology, Gunma College commenced efforts toward introducing active learning in 2014. In this review, we will compile the results of initiatives to introduce active learning in the past five years, hoping to present future guidelines. In Chapter 2, we reviewed the policy on active learning promoted by the Ministry of Education, Culture, Sports, Science and Technology, and described the status of active learning introduction at elementary and junior high school, high school, and college and university levels. In Chapters 3 and 4, based on a questionnaire survey, we reported on the current situation of our school about the educational method in which students actively learn.

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This study investigated a method of removing algae by energizing a metal electrode plate set in water containing abnormally proliferated algae. As algae have negative charge in water, they migrated to the anode by electrophoresis in an electric field. Combining with cations eluting from the anode, especially aluminum ions, the algae formed cohesive floc and then adhered on the anode surface without returning into the water. In the continuous flow apparatus, algae were removed at high removal rate by taking out the algae adhered on anode regularly. It was shown that the electrochemical method can efficiently remove algae from water.

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In our college surveying practice, it has been a problem for many years that only the classical contents can be performed due to restrictions on facilities and equipment. In order to provide students an opportunity to touch the latest equipment and technology, we got cooperation from surveying companies actively working at survey work and conducted intensive surveying practice using the latest equipment of companies. Through the intensive surveying practice, students learning the principles of conventional surveying methods can also experience the latest surveying techniques used for survey site.

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Fractal image coding is a block-based scheme that exploits the self-similarity hiding with an image. Fractal codes are quantitative measurements of the self-similarity of the image, and collage error distribution of block characterizes the degree of self-similarity in it. Furthermore, fractal codes can be used to obtain a practical image indexing system because of its compactness and stability. The most important reason using fractal codes is able to deal with the images in compressed form. Thus fractal indexing is suitable for use with large database. In this study, we propose a new image retrieval system and object detection method based on fractal coding features that are collage error distribution and block partition structure in fractal codes. Experimental results show that the proposed method achieves a high precision tracking which is faster than MPEG method.

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This is a rough report about the Kanji education to a school year of 1-3 of National Institute of Technology, Gunma College. The average score of the test results for the students tends to be lower in the latter period than in the previous at the same year. And the results will go down every year. So I took some action and found effective things. When the problem of the kanji became more difficult, I reduced the number of the problem. I requested students who wrote a wrong kanji to write it once again correctively, I changed the problem of the type of the manual operation choice into a type of the automatic one, and I entered the classroom a few minutes before the lesson began and encouraged students to study Kanji. It was totally effective.

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