著者
内田 真之 山口 薫 藤井 康友
出版者
石油技術協会
雑誌
石油技術協会誌 (ISSN:03709868)
巻号頁・発行日
vol.58, no.1, pp.67-77, 1993

地震探査データにみられる炭化水素の存在と直接に関わっている現象いわゆるDHI (Direct hydrocarbon indicator) による炭化水素検知の手法として, 近年AVO (Amplitude variation with offset) 解析が注目を集めている。同解析は地震波の入射角の変化に伴う反射波の振幅の変化を観測することによって炭化水素貯留層を直接検知しようとするものであり, 重合断面上の特徴的なアノマリーの観測のみによる炭化水素検知法に比べてより精度の高い対比ができるものと期待されている。<br>AVO現象はP波の伝播速度および密度の他にポアソン比 (あるいはS波の伝播速度) というもう1つの岩石物性の変化にも起因するため特にガス貯留砂岩層の検知に有効であることが知られているが, データ処理において重合前の多くのデータを使用するためノイズ除去や振幅保存などに通常処理よりも大きな注意を払う必要がある。本スタディの対象となったエリアは東マレーシアの陸上地域で, 中新世~鮮新世に堆積したデルタ成の砂泥互層の発達が卓越し試掘によりこれらの砂泥互層中に複数の砂岩ガス層が存在することが確認されている。またこの地域では通常処理震探断面上で異常振幅やホライゾンの下方湾曲が観測されており, これらのアノマリーがガス層の存在に起因するものと期待されていたが, ガス層発見井の坑井データによりこれらの異常が必ずしもガス層の存在にのみ起因するものでは無いことがわかった。<br>本スタディではまず坑井データに基づきガス層でのP波伝播速度の減少を推定し, さらに密度の観測データとS波伝播速度の変化の推定からガス層上面での入射角の変化に伴う振幅変化の予測を行った。次にガス層が確認された構造とその背斜トレンドの延長部に存在する未試掘プロスペクトのそれぞれ頂部を通る測線の震探データに前処理を施した後AVO解析を行った。その結果使用したデータが比較的S/N比や重合数が低くAVO解析には必ずしも適していなかったものの, AVOの解析結果にみられる異常はガス層とよい対比を示した。また未試掘構造ではAVO解析の結果顕著な異常は認められなかった。
著者
SHIMA,Hiroshi
出版者
東京昆蟲學會
雑誌
昆蟲
巻号頁・発行日
vol.47, no.3, 1979-09-25

The Japanese species of Trigonospila POKORNY and Lixophaga TOWNSEND are revised. One species of each of the genera is described and illustrated as new to science. Keys to the Japanese species of both genera are presented.
著者
安藤 有里子 大西 賢人 緒方 佑莉 郷田 朋子 諸宇 ヒブン 中西 美紗緒 定月 みゆき 大石 元
出版者
日本産科婦人科内視鏡学会
雑誌
日本産科婦人科内視鏡学会雑誌 (ISSN:18849938)
巻号頁・発行日
vol.35, no.2, pp.377-382, 2019

<p> Omental pregnancy is a subtype of abdominal pregnancy, which accounts for <1% of all ectopic pregnancies. Definitive diagnosis is challenging due to its rarity and difficulty in localizing its implantation site. Here, we describe the case of a 20-year-old nulliparous woman with omental pregnancy, referred to our hospital due to acute abdominal pain and high serum human chorionic gonadotropin levels. The gestational sac was not detected on a pelvic ultrasound examination. Abdominal contrast enhanced computerized tomography (CT) revealed an intra-abdominal hemorrhage and a 3-cm mass in the omentum. Diagnostic laparoscopy confirmed the omentum as the implantation site, following which complete resection of the lesion was performed. Histopathological analysis confirmed the diagnosis of omental pregnancy. Her postoperative course was uneventful. Our findings suggest that CT and laparoscopy are useful when the implantation site could not be visualized via ultrasonography in ectopic pregnancy. In addition, we discuss the association between emergency contraception and ectopic pregnancies.</p><p></p>
著者
Nina Naquiah Ahmad Nizar Jalaldeen Mohamed Nazrim Marikkar Dzulkifly Mat Hashim
出版者
Japan Oil Chemists' Society
雑誌
Journal of Oleo Science (ISSN:13458957)
巻号頁・発行日
vol.62, no.7, pp.459-464, 2013 (Released:2013-07-03)
参考文献数
30
被引用文献数
18 47

A study was conducted to differentiate lard, chicken fat, beef fat and mutton fat using Gas Chromatography Mass Spectrometry (GC-MS) and Elemental Analyzer–Isotope Ratio Mass Spectrometry (EA-IRMS). The comparison of overall fatty acid data showed that lard and chicken fat share common characteristics by having palmitic, oleic and linoleic acid as major fatty acids while beef and mutton fats shared common characteristics by possessing palmitic, stearic and oleic acid as major fatty acids. The direct comparisons among the fatty acid data, therefore, may not be suitable for discrimination of different animal fats. When the fatty acid distributional data was subjected to Principle Component Analysis (PCA), it was demonstrated that stearic, oleic and linoleic acids as the most discriminating parameters in the clustering of animal fats into four subclasses. The bulk carbon analysis of animal fats using EA-IRMS showed that determination of the carbon isotope ratios (δ13C) would be a good indicator for discriminating lard, chicken fat, beef fat and mutton fat. This would lead to a faster and more efficient method to ascertain the source of origin of fats used in food products.
著者
矢野 哲也 Yano Tetsuya ヤノ テツヤ
出版者
大阪大学大学院国際公共政策研究科
雑誌
国際公共政策研究 (ISSN:13428101)
巻号頁・発行日
vol.20, no.1, pp.81-95, 2015-09

According to the U.S. Code, the term "covert action" means an activity or activities of the United States Government to infl uence political, economic, or military conditions abroad, where it is intended that the role of the United States Government will not be apparent or acknowledged publicly. Osama bin Laden was killed when U.S. forces stormed his compound in Abbottabad, Pakistan, in the early hours of May 2, 2011. CIA Director Leon E. Panetta said this was what's called a "Title 50" operation, which is a covert operation, and it comes directly from the President of the United States. The Abbottabad raid illustrates the post-9/11 security environment convergence of military and intelligence operations. This article focuses on the problem with both using military personnel to conduct covert action and using them without a military chain of command.
著者
川道 麟太郎
出版者
一般社団法人 日本建築学会
雑誌
日本建築学会計画系論文報告集 (ISSN:09108017)
巻号頁・発行日
vol.385, pp.95-102, 1988-03-30 (Released:2017-12-25)

Analogies are widely and variously used in architecture. This paper is the first part of a study for proving the state of the permeation of analogy and its significance by investigating analogies in the following three categories: the "concept", "design" and "perception" of architecture. In this paper, by referring to the "analogical design" of Geoffrey Broadbent, I deal with analogy in the category, "design". The function of analogical design can be grasped through two aspects '. One is that as a design method and the other is its effect, which relates to the symbolism and identity of architecture. Analogy begins with the recognition of similarity and is guided by it, but the similarity is not found in similar things but in rather different kinds of things. Therefore, analogical design also usually draws analogies from things other than architecture, and thus, its characteristics vividly come out. However, there are some cases where analogy is drawn from architecture and vernacular buildings. In these cases, analogy seems to get close to the meaning of "imitation", but analogy has to be distinguished from it. Comparing analogy with imitation, the former is more operative, conversive and sophisticated, while the latter is more direct, straightforward and obedient.
著者
日野 正基
出版者
農村計画学会
雑誌
農村計画学会誌 (ISSN:09129731)
巻号頁・発行日
vol.32, no.3, pp.360-363, 2013-12-30 (Released:2014-12-30)
参考文献数
2
被引用文献数
7 5

Recently, issues related to the lack of younger generation citizenry involved in community leadership due to depopulation and an aging society in mid-mountainous rural areas are remarkable. To address these problems, various relocation plans have already been initiated and some people have indeed relocated however, obstacles concerning employment or housing still remain. In this study, a survey related to income was carried out on these relocated people as well as their current income situation. The results are herby reported.

2 0 0 0 OA 官報

著者
大蔵省印刷局 [編]
出版者
日本マイクロ写真
巻号頁・発行日
vol.1936年02月29日, 1936-02-29

2 0 0 0 OA 官報

著者
大蔵省印刷局 [編]
出版者
日本マイクロ写真
巻号頁・発行日
vol.1936年02月27日, 1936-02-27
著者
Lucille Elna P. de Guzman Oscar B. Zamora Joan Pauline P. Talubo Cesar Doroteo V. Hostallero
出版者
Agricultural and Forestry Research Center, University of Tsukuba
雑誌
Journal of Developments in Sustainable Agriculture (ISSN:18803016)
巻号頁・発行日
vol.9, no.2, pp.111-119, 2014 (Released:2014-11-22)
参考文献数
18

Climate change could have significant impacts in the Philippines on large sections of the population who are poor and vulnerable, especially those who live in areas prone to coastal storms, drought and sea level rise. The sectors mostly affected by climate change are agriculture and food security because of the risk of low productivity due to increasing temperature, drought, and increasing frequency and intensity of rainfall that brings about floods and landslides.Located in the northernmost tip of the country, the Batanes group of islands lies on the country’s typhoon belt. Because of vulnerability and isolation from the rest of the archipelago, the Ivatans have developed self-sufficient, organic and climate-resilient crop production systems. This paper presents the indigenous crop production systems that have made the Ivatans food self-sufficient despite vulnerability of their agroecosystem.A typical Ivatan farmer owns 3-7 parcels of land. Each parcel has an average size of 300-500 m2. Farmers practice a rootcrop-based multiple cropping system with specific spatial arrangements of corn (Zea mays), gabi (Colocasia esculenta), yam (Dioscorea alata) and tugui (Dioscorea esculenta), using corn stover, hardwood trees or a local reed called viyawu (Miscanthus sp.) as trellis. Banana (Musa sp.) and assorted vegetables are planted around the parcels. One to two parcels are planted per season and the rest are left to fallow and used as grazing areas for cattle. The same crops are planted on the other parcels in the next season and the first two parcels utilized will again be planted only after 3-5 years. This unique fallow system maintains soil fertility without the use of chemical fertilizers. They also practice an indigenous storage system that involves hanging of their harvest such as corn, rice, garlic and onion bulbs, even meat and fish, above the firewood-fed cooking area. For generations, the Ivatan farmers’ indigenous agricultural production systems have ensured a food security at the household level.