水田から発生するメタンの主要な炭素源の確定

水田から発生するメタンに占める水稲体光合成産物由来メタンの寄与率を2年間にわたり調査した。得られた結果を要約すると、 1.光合成によって取り込まれた二酸化炭素は、早いものでその数時間後にはメタンとして大気中に放出された。 2.7月までは大気に放出されるメタンの大部分が稲ワラ由来のメタンであり、稲ワラを施用しない場合メタンの水田からの発生量はごく僅かであった。 3.7月下旬頃から水稲体由来のメタンが急増したが、初めのうちはその大部分が水稲根からの浸出物に由来していると考えられた。また、この時期には、水稲根周辺で生成したメタンの方が非根圏で生成したメタンよりも若干優先して放出されていると推察された。 4.8月下旬以降、水稲からの有機物提供が少なくなり、メタン発生量が減少したが、それとともに発生するメタンに占める光合成産物由来のメタンの割合が減少し、水稲根遺体等に由来するメタンの割合が増大していくと考えられた。 5.水稲体土壌圏への物質供給は出穂を境として急激に減少した。 6.7月下旬頃の化学肥料区においては、土壌のある部位では還元化が進行中であり、またある部位では既にメタン生成が始まっているなど還元化の程度が一様でないことが推察された。大気中から土壌圏への水稲体を通した拡散による二酸化炭素の移動とそれを基質としたメタン生成は殆ど無いと推察された。科学研究費補助金 研究種目:一般研究(B) 課題番号:05454067 研究代表者:木村 真人 研究期間:1993-1994年度research repor

Parameter Optimization of OCSVM by GridSearchCV for Improving IoT Malware Detection Accuracy

Abstract is written in 200-300 words. In recent years, the Internet of Things (IoT) has been playing an increasingly important role in our lives. It has enabled us to form new services and business models, and to automate and improve the efficiency of our work. However, at the same time, security vulnerabilities have become an issue: according to NICT, more than half of the observed cyber attack-related communications targeted the IoT [3].In this study, we propose a system that combines n-gram analysis and OCSVM to discriminate between normal communication of IoT devices and communication after malware infection, and a system that uses GridSearchCV to calculate the best parameters for the parameters arbitrarily set by humans when applying OCSVM. The system is proposed to calculate the best parameters using GridSearchCV. For the evaluation, we conducted an experiment to compare the detection accuracy of 25 sets of parameters conventionally used and the detection accuracy using GridSearchCV, and showed good detection accuracy. However, in some cases, the detection accuracy decreased in the process of increasing the total number of data given to GridSearchCV. As a future subject, it is necessary to change the ratio and the total number of normal data and more than normal data, to observe the change of detection accuracy, and to study the cause.departmental bulletin pape

Observation of the Decay B0→D±D*∓

journal articl

Peculiarity and universality of contemporary Japanese political nationalism -Organizations of religious obedience inside the "Japan Conference"

application/pdf当研究は現代日本における最大の国家主義政治圧力団体である日本会議に注目した。結果、一部の市民の間に流れている国家主義的な心情を詳細に分析することができた。また、日本会議国会議員懇談会の役員の取材を通じて「保守」と言われる政治家の国家主義的な心情も測ることができた。併せて、日本会議と活動している幾つかの新興宗教の動機及び国家主義的な信念も明らかになった。加えて、日本会議を初め日本の政治右翼にとって、宗教的な要素を抜きにした国家主義的活動は有り得ないという結論にも至った。総じて海外との比較を通じて現代日本政治ナショナリズムの特色及び普遍性について新しい説を提供することができたと思われる。The main focus of this research has been the Japan Conference which is the largest nationalist lobby of contemporary Japan. As a first result, I produced a detailed analysis of the nationalist feeling that is shared among part of the Japanese citizens. Through interviews of members of the parliamentary committee board of the Japan Conference, I also evaluated the nature of the nationalist feeling that drives the politicians that are commonly called "conservatives". As another result, the motivations and nationalist convictions that are pushing a certain number of new religions to cooperate with the Japan Conference also became clear. Moreover, I came to the conclusion that in the case of the Japanese right wing, nationalist activities that would exclude religious elements are unthinkable. As a general result, and through comparison with other countries, I proposed new theories concerning the peculiarity and universality of contemporary Japanese political nationalism.2013年度～2015年度科学研究費補助金(基盤研究(C))研究成果報告書25380153research repor

オージエ電子分光分析による合金膜のシリサイド形成初期過程の検討

application/pdfThe process of silicide formation by alloy films contacted with Si has been examined on the basis of results obtained from possible combinations of binary alloy films， such as two near-noble metals, near-noble metal and refractory metal，and two refractory metals. It is found that the phase separation of the alloy films due to the silicide formation is observed in the initial stage of the reaction when the following conditions are satisfied ； (i)the alloy film consists of the combination of near-noble metal and refractory metal，which have different reaction process with Si，in the sense that the diffusion species for the reaction of the slicide formation is metal or silicon，and(ii)the alloy doesn't form a stable intermetallic compounddepartmental bulletin pape

Dataset (SPSS-file) related to "Concurrent validity and discriminative ability of Dutch performance-based motor tests in 5 to 6 years old children"

This dataset contains complete testing outcomes of three different motor skill tests, namely the Movement Assessment Battery for Children, the Baecke-Fassaert Motor Test, and the 4- and 8-Skills Scan. The study sample consists of 219 primary school children of 5 to 6 years old.Testing took place at 3 schools in Amsterdam, The Netherlands.Project: MAMBO (Measuring Motor Skills Primary School Amsterdam) Because of the sensitive nature of the data, the fileset is confidential and will be shared only under strict conditions. For more information contact [email protected].</p

Cost-effectiveness of a workplace intervention for sick-listed employees with common mental disorders: design of a randomized controlled trial-1

<p><b>Copyright information:</b></p><p>Taken from "Cost-effectiveness of a workplace intervention for sick-listed employees with common mental disorders: design of a randomized controlled trial"</p><p>http://www.biomedcentral.com/1471-2458/8/12</p><p>BMC Public Health 2008;8():12-12.</p><p>Published online 14 Jan 2008</p><p>PMCID:PMC2254399.</p><p></p