A weak radioactive anomaly (0.080mR/hr) was detected at in 1959, but since then no furthur efforts in prospection have been undertaken in the area, since at that time it was not customary to attach much value to such occurrences. In November, 1966, significant radioactivity (1.7mR/hr, 0.6% U₃O₈) was detected 35m south of the previous location, in the course of a systemafic car-borne radiometric survey undertaken by the Atomic Fuel Corporation of Japan. To date, several uranium occurrences have been discovered in formations belonging to the Cretaceous Period. This is the first instance of such occurrence in Cretaceous formation discovered in Japan.
The uranium deposits occur mainly in dark gray to brown, hard compact sandstone and/or sandy shale. The deposits appear related to rhyolitic rock intrusions. A secondary uranium mineral, believed to be autunite, is sporadically found in the black silicified sandstone closely associated with pyrite and chlorite. Little uranium would appear to be contained in such clay minerals as chlorite according to radioluxograph and X-ray fluorescent examination, since primary uranium minerals have not yet identified.
So far prospection for uranium deposits in Japan have been directed mostly to the Neogene Tertiary just above the granitic host rocks. The discovery of the deposits in Cretaceous formation is highly significant in that it has opened up a vast new area to prospection in strata other than Tertiary formation, and this urges us to continue our efforts in gathering further information that should contribute to a better assessment of the domestic uranium potentiality.

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The morphology and ecology of Lutjanus vitta in early developmental stages were studied.Materials were collected with plankton nets, seines and trawls from 1975 through 1977 in Bay located in the southwestern part of the Sea of Japan.Larvae and early juveniles of the fish are outstanding in having an elongate second dorsal spine, pelvic spines, and pelvic rays.The body is compressed, and the head is armoured with spines and bony projections on the maxillary, posttemporal, supracleithrum, postcleithrum and four opercular bones.The fish attain full fin ray counts at about 10mm SL (= standard length) and specific coloration around 24mm SL.Relative growth of the elongate fin elements consists of four stanzas delimited by three growth inflexions which occur at about 7, 16 and 32mm SL.Close correlations between morphological and ecological changes were observed.Larvae less than 7mm SL spend planktonic life in the open sea, showing rapid growth in fin elements, adapting to the life mode.At about 7mm SL, a sharp downward inflexion occurs simultaneously in these fin elements, and the negative growth rate is maintainted until the fish measure about 16mm SL.In this growth stanza, the fish develop free-swimming ability gradually, migrate into bays and concentrate in shallow waters.In the third growth stanza (16-32mm SL), relative growth is highly negative (the relative growth coefficients, a<<1) in these body parts and actually negative (a<0) in some of them indicating a fast decrease of these parts in proportion to the length of the fish.In this growth stanza the fish move into grass beds, and the transition from pelagic to demersal life is completed at the end of the stanza.Over 32 mm SL, relative growth is slightly negative and stable until 20 cm SL, the size limit of the observations.Stomach contents of demersal young fish caught in grass bed were analyzed and a flexible feeding strategy was demonstrated.The fish is seemingly a random feeder which utilizes the most abundant food items available from more than one microhabitat within grass beds.They take small fishes and crustaceans both at the sea bottom, on Zostera blades, and in the water column between Zostera blades.

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In order to eliminate mismatches between the intentions of questioners and respondents of Question and Answer (Q&A) sites, nine factors of impressions for Japanese and English statements have experimentally been obtained. Factor scores are then estimated by using the feature values of statements. So far the possibility of searching Japanese respondents capable of giving appropriate answers to a newly posted question has been established. It has been shown that the distance and the number of appearance may help us select users who can give appropriate answers to a question. In the similar fashion, this paper tries to find the possibility of detecting respondents who can appropriately answer a newly posted question at English Q&A sites. As a result of analysis, while there were several users who iteratively gave answer statements for Japanese, there are only a small number of respondents who only posted at most two answers for English.

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To clarify the effect of dislocation on the precipitation behavior of nitrides, Fe–Mn and Fe–Cr binary alloys were deformed, nitrocarburized, and examined their hardening behavior. We measured the content of N in a diffusion layer and estimated the amount of alloy nitrides based on the measured N content. With the Fe–Cr alloy, the deforming have little effect on the hardness and CrN precipitation behavior. With the Fe–Mn alloy, the deforming contributes to increase in hardness with denser and finer Mn₃N₂ precipitation. Transmission electron microscopy observation shows CrN precipitates mainly by homogeneous nucleation but Mn₃N₂ precipitates mainly on dislocation. The thermodynamic calculation shows that substitutional alloy element (M) and N can form M–N clusters in Fe–Mn–N and Fe–Cr–N systems through phase separation of bcc lattice. Because Cr–N clusters have a higher nucleation driving force than Mn–N clusters, they can be formed by homogeneous nucleation. We evaluated the degree of the precipitation hardening and revealed that CrN has a larger hardening ability per unit precipitation amount than Mn₃N₂.

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鹿児島県八重山地域の地質層序を明らかにするために詳細な地質調査を行い，点在する鮮新統湖成層（郡山層）の対比を試みた．その結果，この地域に12の地層単元が識別され，郡山層は下位より厚地泥岩部層，峠砂岩部層，湯屋泥岩部層，花尾凝灰角礫岩部層に分けられた．また，郡山層堆積時に貫入した安山岩類（茄子田安山岩類）が識別され，湯屋泥岩部層中に2枚の火砕流（草木段火砕流・宮脇火砕流）が認められた．宮脇火砕流からは2.5 Ma前後のK-Ar年代測定値が得られた．一方，八重山地域に分布する郡山層の珪藻化石群集として，湯屋泥岩部層最下部からStephanodiscus astraea群集，湯屋泥岩部層下部ではCyclotella michiganiana群集，宮脇火砕流を挟在する湯屋泥岩部層上部ではAulacoseira ambigua群集が認められた．火砕流と珪藻化石群集の対比から八重山地域に点在する郡山層はほぼ同時代に堆積した湖成層であることが明らかになった．

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Analyzing echo-sounding and experimental fishing data, Ohkawa and Misu have estimated the daily abundance of the Japanese anchovy Engraulis japonica in Bay. Using data of the abundance and commercial catch, and assuming the natural mortality coefficient, M. to be 5×10^-8 s^-1, this paper estimates magnitudes of the fishing mortality coefficient, F, and the immigration-emigration coefficient, I, for one or two days. Plots of |I| estimated by this and other papels vs. the time-scale, T, adopted in the respective papers show a relation, |1|=0.1/T to √10/T; due partly to offsets of positive and negative values of I for long T. Usually, both of Gi and M<10^-7 s^-1 where Gi is the individual growth coefficient; F<3×10^-7 s^-1. When T is shorter than five days or so, I should dominate over them.

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本地域産の多数の標本について古生物学的研究を行なった。その結果, Venericardia (Venericor) sub-nipponicaNAGAOについては成長過程における形態の変化, および個体変異のいちぢるしいことが判明した。

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In order to eliminate mismatches between the intentions of questioners and respondents of Question and Answer (Q&A) sites, nine factors of impressions for statements have experimentally been obtained. Factor scores are then estimated by using the feature values of statements. So far the possibility of searching respondents capable of giving appropriate answers to a newly posted question has been established for Auction, PC and Love. It has been shown that the distance and the number of appearance may help us select users who can give appropriate answers to a question. In the similar fashion, this paper tries to find the possibility of detecting respondents who can appropriately answer a newly posted question for other categories such as Internet, Politics, etc. As a result of analysis, several newly regarded categories shows the similar tendency as the previous analysis, while some categories related to Yahoo! JAPAN show less outstanding tendency.

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Prevalence of chronic bronchitis in 13, 846 inhabitants above forty years old in Sakai was surveyed.
This survey was based on questionnaire on each person and 2, 265 persons of them having any respiratory symptomes submitted clinical examinations by the doctors.
The chronic bronchitis was defined as production of sputum and having persistent or recurrent cough for three months or more in at least two consecutive years.
The prevalence increased with age and amount of smoking cigarettes, and these factors was statistically standardized.
The prevalence of chronic bronchitis was 2.0%-5.6% in men and 0.7%-2.5% in women checked-up.
The prevalence was significantly greater in the more polluted area (Sanbo, Eisho, ) than in the less polluted area (Kamiishi, Kanaoka, Hamadera, Nishitoki) indicating that air-pollution (especially SO₂ concentration) had significant effect on the incidence of chronic bronchitis.

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山口県北西部の日本海に沿って，東西に油谷半島の付け根付近から半島先端を経て角島に至るまで，古第三紀後期漸新世から新第三紀中期中新世の堆積岩が分布している．この基盤岩は後期中新世に噴出した玄武岩の溶岩流によって被覆されている．この溶岩流によって形成された溶岩台地は，その後の地すべりや海水面の作用で侵食や運搬を受け，半島の尾根部にキャップロックとして残されている．この漸新-中新統堆積岩類は，十分固結していない段階から，玄武岩の荷重と地下水の供給を受け，堆積岩内あるいは境界付近をすべり面とする大規模地すべりが発生した．この大規模地すべり域では初生的な地すべりの後に少なくとも2回の地すべりの痕跡が残れている．本案内書では初生的な地すべりを1次地すべり，1次地すべりにより形成された地すべり土塊が，再度すべったものを2次地すべり，さらに表層部のみがすべったものを3次地すべりとする．本地域は，2次，3次地すべりを対象として｢地すべり防止区域｣に指定され，地すべり工事が実施されてきた．今回の巡検では代表的な地すべり地を巡り，山口県北西部日本海岸の地質との関連を紹介するだけでなく，最近の研究成果による詳細な地すべり滑動のメカニズム，解析手法，対策工事についても議論する．

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In order to eliminate mismatches between the intentions of questioners and respondents of Question and Answer sites, we have experimentally evaluated the impressions of 60 questioners and their responses posted at Yahoo! Chiebukuro. By applying factor analysis to the scores of the experiment, the impression of the statements could be captured by nine factors. Factor scores of other features are interpreted as syntactic information, word imageability, and closing sentence expressions. As a result, the overall estimation accuracy is good: the accuracy of the estimated values of seven factors is good, while that of the other two factors is fairly good. The estimation accuracy of these two factors should be improved. This paper improves the estimation accuracy by adopting new feature values of statements: word familiarity and notation validity. We show that the estimation accuracy can sufficiently be improved by using them as well as the conventional feature values.

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It is very important to clarify the deterioration mechanism of coke at the lower part of blast furnace. In this study, the deterioration of coke, which was caused by the interaction of carbon and ash during heat treatment to 2000°C in a nitrogen atmosphere, was investigated.
The following findings were obtained.
(1) After the coke heated up to 2000°C, the weight of coke decreased by approximately 12%. The coke strength decreased with decreasing the weight of coke, and it decreased by 0.5% per 1% of the weight loss of coke.
(2) The vaporization of the ash and the volatile matter of coke and the interaction of carbon and ash caused the weight loss of coke, and the 70% of the weight loss was caused by the interaction of carbon and ash.
(3)The interaction of coke and ash mainly consisted of the reaction where SiC was formed by the interaction of SiO₂ and 3Al₂O₃·2SiO₂ included in ash and C in the coke, but at temperature above 1750°C, N₂ in the atmosphere, SiO₂ and 3Al₂O₃·2SiO₂ interacted. At temperature between 1750°C and 2000°C, SiC and AlN were formed, and the amount of these compounds in the coke reached about 3% and 2% respectively.

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局所接触型マイクロ波加熱法を用いたインジェクタを試作した．加熱部で反射したマイクロ波（反射波）を計測した結果，インジェクタによる噴射が行われている期間と，反射波が小さくなっている期間が概ね一致した．

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超高齢社会において高齢者，障碍者，有病者そして健常者を支えるロボット技術への期待が高まっている．本稿では，医工連携に基づいて開発された本態性振戦患者向け装着型ロボット，がん骨転移患者向け寝返り支援装具，視覚障害者用力覚インタフェースを紹介しながら，医工連携やロボット技術によりどのようなことが可能となってきているのかについて述べる．

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科学技術戦略を策定するにあたり，近年では，データを分析して客観的なエビデンスに基づき判断しようという潮流があり評価手法の研究が進められている。本分析では，分析対象に，2007-2014年の各年の被引用数上位1%の論文を収集し，論文の引用ネットワークを分析して，萌芽研究領域を特定して投資対象を判断する指標を提案する。研究領域に含まれる平均出版年から萌芽研究領域を特定した結果，日本の論文が含まれる領域は5領域が検出された。それらの領域における日本の研究の質・量・最新性を判断し，その後，取るべき戦略ごとに研究領域を区分した。

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Bluetooth MANETs, which consist of Bluetooth-enabled terminals, are a prospective methodology for mobile ad hoc networks (MANETs). Since Bluetooth is a connection-oriented and a low-power-consumption communication method, terminals must execute time-consuming connection establishment procedures in advance. We have to solve the following two problems for Bluetooth MANETs: (1) since terminals move within fields, terminals must establish their connection within a limited time. In addition, (2) since Bluetooth has a shorter range than other technologies, established connections are easily disrupted. In order to solve problem (1), a low-latency connection establishment method has been proposed. However, there is no countermeasure for problem (2). Therefore, the possibility of rapid re-establishment for connections ought to be investigated. In this paper, we have proposed a new adaptive connection-establishment timeout configuration method for environments with control packet loss. Our proposed method employs an adjustment mechanism for control packet loss. We have also implemented our proposed method on Raspberry Pi in order to evaluate our proposed method. To design our proposed method, we have conducted preliminary experiments to investigate the effects on varied connection-establishment timeouts. As a result, we have found that the minimum connection-establishment timeout is 2 seconds. At the same time, we have found that connection establishment failure rates increased as connection-establishment timeouts became shorter than 2 seconds. Especially, when connection-establishment timeouts were less than 2 seconds, the latency of the connection establishment became extremely long. This is due to the presence of a race condition between the processing time of control packets and the connection-establishment timeouts. From these results, we have set an adjustable interval of connection-establishment timeouts between 2 to 5 seconds. 5 seconds is the native default value of Bluetooth’s connection-establishment time-out. We have also conducted experiments of our proposed method in varying packet loss rate scenarios, and have confirmed the effectiveness of our proposed method.

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近年、ATM やスマートフォン、PC などにタッチパネル方式が用いられた機器が普及している。タッチパネルにおいて、指などの対象物を検出する手法として静電容量方式や抵抗膜方式が多く用いられている。これらの手法では直感的に操作ができる半面、直接タッチパネルに触れて操作するため、操作範囲が装置サイズに依存してしまう。そのため、押し間違いが起こらないような大きいキーを多数配置すると、装置サイズの増大に繋がり、携帯性との両立が難しくなるという問題が生じる。これを解決するものとして 3 次元タッチパネルが挙げられる。これは空間上に 3 次元の仮想タッチパネルを設置し、その空間で指などを動かすことで、操作するデバイスである。これにより、広い操作範囲を持ち、なおかつ装置サイズを小さくすることができるため、操作性と携帯性との両立が可能となる。また、既存の手法として超音波センサと PSD を用いた2 次元座標取得法がある。三角測量を用いる従来法では、異なる 2 点からの測量が必要であるために、装置の更なる小型化が難しいという問題があった。しかし、この手法では、原理上 1 点の測点しか必要としないため、装置の小型化が可能となる。本研究では、超音波センサと PSD を用いた 2 次元座標取得法を拡張し、3 次元座標の取得法を提案する。この手法を用いると、装置サイズ自体を小さくすることが可能であり、また、画像処理を使用しないため、よりリアルタイムな操作が可能となる。本研究では指の 3 次元座標が測定できたので報告する。

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これまでに報告例のない，セメントペーストに対する電子後方散乱回折（EBSD）による分析を実施した．その結果，セメントペーストの代表的な結晶性水和物であるCa（OH）₂ やCaCO₃ のIPF マップではほとんど検出されないという結果となった．またクリンカー成分に関しても同様であった．このことは，セメントペースト中の水和物やクリンカー鉱物の結晶構造が，標準的な構造のみではなく多種多様な構造を有していることを示唆している．一方で，IQ マップでは少なくとも結晶性の異なる水和物の分布を可視化することができることを確認した．

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