詳細検索結果

中国でヒトに感染した鳥インフルエンザA(H7N
9
) ウイルスの性状，検査系の開発およびワクチン開発とその問題点

小田切孝人, 田代眞人

ウイルス
2013年 63 巻 2 号 233-240
発行日: 2013/12/25
公開日: 2014/10/31

DOI https://doi.org/10.2222/jsv.63.233

ジャーナルフリー

PDF形式でダウンロード (454K)
MICROSEISM BARRIERS

M. L. GHOSH

Journal of Physics of the Earth
1972年 20 巻 2 号 165-186
発行日: 1972年
公開日: 2009/04/30

DOI https://doi.org/10.4294/jpe1952.20.165

ジャーナルフリー

抄録を表示する抄録を非表示にする

The possibility of attenuation of microseismic waves due to the presence of an upward folding of the ocean bottom into the liquid is discussed in this paper. The upward folding of the ocean bottom has been idealized by means of an irregularity in the form of a rectangle intruding into the liquid and the evaluation of the displacement component at any point of the solid medium has been carried out in two stages. First, the change in the incident mode of the surface wave due to the presence of the rectangular irregularity has been determined, and second, the subsequent change of the resulting displacement components due to the termination of the liquid layer and the step change in elevation of the solid medium at the continental margin has been discovered. Finally, numerical calculation has been made to determine the attenuation of the microseismic waves of different periods due to the presence of the rectangular irregularity at the ocean bottom.
抄録全体を表示

PDF形式でダウンロード (1863K)
Effect of Thermomechanical Processing on the Microstructure and Properties of a Low Carbon Copper Bearing Steel

M. K. Banerjee, P. S. Banerjee, S. Datta

ISIJ International
2001年 41 巻 3 号 257-261
発行日: 2001/03/15
公開日: 2007/05/31

DOI https://doi.org/10.2355/isijinternational.41.257

ジャーナルフリー

抄録を表示する抄録を非表示にする

A boron treated copper bearing HSLA steel containing austenite formers like manganese and nickel, somewhat lower in amount than that in HSLA 100 variety of steel is chosen for the study. The role of thermomechanical processing on the microstructure and mechanical properties of the above steel has been investigated. Differential scanning calorimetric study is carried out for understanding the precipitation behaviour of copper in HSLA steel under the influence of boron. The microstructure of the experimental steel is found to consist of laths of martensites and bainite. MA constituents of ribbon like morphology are observed at the lath boundaries. Higher strength properties of the steel are attributed to the presence of finely distributed precipitates of copper and microalloy carbides.
抄録全体を表示

PDF形式でダウンロード (1068K)
カナダにおける製紙原料供給の現状

増大する資源

E
. F. Boswell

紙パ技協誌
1998年 52 巻 7 号 885-889
発行日: 1998/07/01
公開日: 2009/11/19

DOI https://doi.org/10.2524/jtappij.52.885

ジャーナルフリー

抄録を表示する抄録を非表示にする

The world is in the midst of a huge fundamental shift in fibre supply, demand balances, and policy changes. Governments around the world are introducing policy changes which influence the supply demand balance as the politicians' thoughts are uttered. Government agencies and their bureaucrats are imposing changes on industry even before the legislation is passed by the government in question.
This ad hoc change process will continue for a time to come until the countries in question show a tough-mindedness with regard to their land use policies. Policies affecting forest areas such as protection areas, Native land claims, the protection of biodiversity and a true goal of sustainable development ; which addresses the combined issues of cultural, environmental, social and economic matters.
Eventually all of these difficult issues will reach essential closure. Then there will be great new opportunities for investment to meet the growing demand for forest products ; leading to a strengthening competitive position in the more traditional producing areas such as Canada.
抄録全体を表示

PDF形式でダウンロード (624K)
Prevalence and molecular characterization of extended-spectrum β-lactamase (ESBL) and plasmidic AmpC β-lactamase (pAmpC) producing Escherichia coli in dogs

Özkan ASLANTAŞ, Ebru Şebnem YILMAZ

Journal of Veterinary Medical Science
2017年 79 巻 6 号 1024-1030
発行日: 2017年
公開日: 2017/06/16
[早期公開] 公開日: 2017/04/27

DOI https://doi.org/10.1292/jvms.16-0432

ジャーナルフリー

抄録を表示する抄録を非表示にする

This study aimed to determine the prevalence of fecal carriage of extended spectrum β-lactamase (ESBL) and/or plasmidic AmpC β-lactamase (pAmpC) producing Escherichia coli among dogs (n=428) in Turkey. Polymerase chain reaction (PCR) and sequencing were used to characterize genes encoding β-lactamase and plasmid mediated quinolone resistance (PMQR). Antimicrobial susceptibility testing and PCRs for virulence genes and phylogenetic groups were also performed. Cefotaxime resistant
E
. coli isolates were detected in 95 (
22
.
2
%) of the swab samples. Sequencing analysis results showed occurrence of various β-lactamase genes: bla_CTX-M-15 (62), bla_{TEM-1b
(42), bla_{CMY-2
(22
), bla_{CTX-M-3
(16), bla_CTX-M-1 (15), bla_OXA-1 (9
) and bla_SHV-12 (3
) alone or in combination. The most frequently encountered phylogenetic group was group A₁ (35.8
%), followed by group D₂
(22
.1%), B
1 (15.8
%), D₁
(9
.5
%), A₀ (7.4
%), B2₂
(5
.3
%) and B2₃
(4
.2
%), respectively. PMQR genes, aac(6
’)-Ib-cr, qnrS1 and qnrB10 were detected in 25.3
, 10.5
and 1.1% of the isolates, respectively. While all isolates were susceptible to imipenem and amikacin, resistance rates to non-β-lactam antibiotics ranged from 20.0% for tobramycin to 56.8
% for tetracycline. The virulence genes were only detected in 34 (36.2
%) of the isolates and this isolates carried single or various combination of virulence genes of iucD, papC, papE, f17a-A and eaeA. Four isolates were identified as human virulent pandemic CTX-M-15 producing E
. coli clone O25b
:ST131/B
2
. To the best of our knowledge, this is the first study to show fecal carriage of ESBL/pAmpC type β-lactamase producing E
. coli isolates among dogs in Turkey.
抄録全体を表示}}}

PDF形式でダウンロード (947K)
熱力学諸量の測定とその結果を用いた化学熱力学計算によるNi-Mo-
B
およびNi-W-
B

3
成分系状態図の決定

香山滉一郎, 森下政夫, 張国鋒

粉体および粉末冶金
2006年 53 巻 5 号 419-429
発行日: 2006年
公開日: 2006/12/19

DOI https://doi.org/10.2497/jjspm.53.419

ジャーナルオープンアクセス

抄録を表示する抄録を非表示にする

The phase diagrams of the Ni-Mo-
B
and Ni-W-
B
ternary systems in the region of less than 50mol%
B
were constructed by thermodynamic calculation, based on the data obtained by thermodynamic measurement of the related materials. We found three ternary eutectic points and three or two ternary peritecto-eutectic points as follows:
E₁
:L (1365K, 71.
5
mol%Ni-
6
.0mol%Mo-
22
.
5
mol%
B
)=(Ni)+
Ni₃B
+
NiMo₂B₂

E₂
:L (1355K, 62.
5
mol%Ni-
2
.
5
mol%Mo-30.
5
mol%
B
)=
Ni₃B
+
Ni₂B
+
NiMo₂B₂

E₃
:L (1445K, 42.0mol%Ni-30.
6
mol%Mo-10.
3
mol%
B
)=(Ni)+NiMo+
NiMo₂B₂

P₁:L (1812K, 34.
9
mol%Ni-42.
3
mol%Mo-
22
.
8
mol%
B
)+MoB=
Mo₂B
+
NiMo₂B₂

P₂
:L (1633K, 42.
3
mol%Ni-40.
4
mol%Mo-17.
3
mol%
B
)+Mo=
Mo₂B
+
NiMo₂B₂

P₃
:L (1812K, 53.
5
mol%Ni-33.7mol%Mo-12.
8
mol%
B
)+Mo=NiMo+
NiMo₂B₂

E₁
:L (1622K, 51.0mol%Ni-31.
6
mol%W-17.
4
mol%
B
)=(Ni)+W+
NiW₂B₂

E₂
:L (1260K, 71.0mol%Ni-7.0mol%W-
22
.0mol%
B
)=(Ni)+
Ni₃B
+
NiW₂B₂

E₃
:L (1291K, 65.
4
mol%Ni-
4
.
8
mol%W-29.
8
mol%
B
)=
Ni₂B
+
Ni₃B
+
NiW₂B₂

P₁:L (2115K, 23.
8
mol%Ni-43.1mol%W-33.1mol%
B
)+WB=
W₂B
+
NiW₂B₂

P₂
:L (1657K, 48.
9
mol%Ni-33.1mol%W-18.0mol%
B
)+
W₂B
=W+
NiW₂B₂

The calculated phase diagrams are expected to be useful for the development of new Ni-based heat-, corrosion- or wear-resistance alloys.
抄録全体を表示

PDF形式でダウンロード (1045K)
Petri Neural Network Model for the Effect of Controlled Thermomechanical Process Parameters on the Mechanical Properties of HSLA Steels

S. Datta, J. Sil, M. K. Banerjee

ISIJ International
1999年 39 巻 10 号 986-990
発行日: 1999/10/15
公開日: 2007/05/31

DOI https://doi.org/10.2355/isijinternational.39.986

ジャーナルフリー

抄録を表示する抄録を非表示にする

The effect of composition and controlled thermomechanical process parameters on the mechanical properties of HSLA steels is modelled using the Widrow-Hoff's concept of training a neural net with feed-forward topology by applying Rumelhart's back propagation type algorithm for supervised learning, using a Petri like net structure. The data used are from laboratory experiments as well as from the published literature. The results from the neural network are found to be consistent and in good agreement with the experimented results.
抄録全体を表示

PDF形式でダウンロード (722K)
より実用的な飛行機への探求

Grover Loening

日本航空学会誌
1963年 11 巻 119 号 373-380
発行日: 1963年
公開日: 2009/05/25

DOI https://doi.org/10.2322/jjsass1953.11.373

ジャーナルフリー

PDF形式でダウンロード (5071K)
Certainty Factor Estimation Using Petri Neural Net for HSLA Steel

S. DATTA, M. K. BANERJEE

ISIJ International
2005年 45 巻 1 号 121-126
発行日: 2005年
公開日: 2006/01/27

DOI https://doi.org/10.2355/isijinternational.45.121

ジャーナルフリー

抄録を表示する抄録を非表示にする

An unsupervised learning technique and an associative memory have been used for encoding weights by a special type of Petri network named Petri neural net for modelling the influence of alloying elements on the final property of the high strength low alloy steel. The combined effects of alloying elements for different strengthening mechanisms is predicted when weights and threshold values are chosen on the basis of metallurgical understanding. The technique is found to be effective to create an associative memory of input-output relations in unknown data sets so that the same can be subsequently be used as a predictive tool.
抄録全体を表示

PDF形式でダウンロード (351K)
Kohonen Network Modelling for the Strength of Thermomechanically Processed HSLA Steel

S. Datta, M. K. Banerjee

ISIJ International
2004年 44 巻 5 号 846-851
発行日: 2004/05/15
公開日: 2007/05/31

DOI https://doi.org/10.2355/isijinternational.44.846

ジャーナルフリー

抄録を表示する抄録を非表示にする

Primarily from the point of view of improvement of yield strength due to additions of niobium, titanium and boron in HSLA steels, the experimental steels are divided into five classes. The data are then supplied for learning a Self Organising Map (Kohonen network). It is found that the network with six neurons possesses better capacity of prediction with unknown data. Another effort of clustering the steels according to its major strength contributing mechanisms is also made. But the capacity of the network to cluster unknown data is found to be rather poor and has failed to follow from the metallurgical principles. To avoid this limitation, Learning Vector Quantisation method is adopted to impart a certain amount of supervision in the learning process and it is found that the training pattern of the network attains a good convergence thereby leading to a good predictive ability.
抄録全体を表示

PDF形式でダウンロード (608K)
BREAKOUT RESISTANCE OF HORIZONTAL ANCHORS IN SAND

B
.C. CHATTOPADHYAY, P.J. PISE

土質工学会論文報告集
1986年 26 巻 4 号 16-22
発行日: 1986/12/15
公開日: 2008/02/29

DOI https://doi.org/10.3208/sandf1972.26.4_16

ジャーナルフリー

抄録を表示する抄録を非表示にする

Horizontal plate anchors are widely used in civil engineering constructions to resist vertical pulling loads. The available theoretical model suggested by Vesic to estimate the breakout resistance of plate anchors is in significant error, particularly for dense sandy soils. A theoretical model assuming a curved surface of failure through the surrounding soil, to evaluate the ultimate breakout resistance of horizontal plate anchors, has been proposed. It successfully brings out the concept of characteristics relative depth beyond which the breakout factor reaches a constant final value. It is capable of predicting breakout factors for wide range of values of angle of shearing resistance of sand.
抄録全体を表示

PDF形式でダウンロード (665K)
英国における過去半世紀 (1922～1972) 間の冶金用コークスの研究

George W. Lee

燃料協会誌
1973年 52 巻 3 号 171-177
発行日: 1973/03/20
公開日: 2010/06/28

DOI https://doi.org/10.3775/jie.52.171

ジャーナルフリー

PDF形式でダウンロード (1186K)
An Attempt in Determining the Seismo-Magnetic Effect in NW Turkey

Yilmaz ISPIR, Orhan UYAR

Journal of geomagnetism and geoelectricity
1971年 23 巻 3-4 号 295-305
発行日: 1972/02/25
公開日: 2010/09/14

DOI https://doi.org/10.5636/jgg.23.295

ジャーナルフリー

抄録を表示する抄録を非表示にする

Simultaneous measurements of the total geomagnetic field intensity by the same type of the proton precession magnetometers at two stations in NW Turkey have been taken cooperatively by a research group since December 1970. Up to the end of July 1971 mainly three probable local magnetic changes were observed. It was seen that after a decrease in the local field at a magnetic station (Erdek) a few earthquakes occured at either nearly N or S of that station, and after an increase in the local field an earthquake took place nearly W of the same station. In this paper the data and some results of the first part of observations are given.
抄録全体を表示

PDF形式でダウンロード (857K)
Alcaloides de Caryomene olivascens. : Nouvelles Structures Bisbenzylisoquinoleiques

MARIE LAVAULT, ALAIN FOURNET, HELENE GUINAUDEAU, JEAN BRUNETON

Chemical and Pharmaceutical Bulletin
1986年 34 巻 3 号 1148-1152
発行日: 1986/03/25
公開日: 2008/03/31

DOI https://doi.org/10.1248/cpb.34.1148

ジャーナルフリー

抄録を表示する抄録を非表示にする

Nine isoquinoline alkaloids belonging to the protoberberine, proaporphine and bisbenzyl-isoquinoline series were isolated from Caryomene olivascens (Menispermaceae). Four compounds are new : (-)-
2
-norlimacine (
4
), (-)-caryolivine (
6
), (+)-1,
2
-dehydro-
2
-norlimacusine (
9
) and N-formylstepharine (
3
). The last one is the first N-formyl derivative to be reported in the proaporphine group. Its biogenetic origin is discussed. Structures were established on the basis of 360 MHz (FT) nuclear magnetic resonance measurements and also by chemical correlation in the case of
3
.
抄録全体を表示

PDF形式でダウンロード (576K)
BIO-OXIDATION OF BAZZANENE AND TRICHODIENE

M.
E
. SAVARD, R. GREENHALGH,
B.A
. BLACKWELL

マイコトキシン
1988年 1988 巻 1Supplement 号 141-142
発行日: 1988年
公開日: 2009/11/12

DOI https://doi.org/10.2520/myco1975.1988.1Supplement_141

ジャーナルフリー

PDF形式でダウンロード (208K)
Aromatase Inhibitory Activity of Geranylated Coumarins, Mammeasins C and
D
, Isolated from the Flowers of Mammea siamensis

Kiyofumi Ninomiya, Kanae Shibatani, Mayumi Sueyoshi, Saowanee Chaipech, Yutana Pongpiriyadacha, Takao Hayakawa, Osamu Muraoka, Toshio Morikawa

Chemical and Pharmaceutical Bulletin
2016年 64 巻 7 号 880-885
発行日: 2016/07/01
公開日: 2016/07/01

DOI https://doi.org/10.1248/cpb.c16-00218

ジャーナルフリー HTML

抄録を表示する抄録を非表示にする

A methanol extract of the flowers of Mammea siamensis (Calophyllaceae) was found to inhibit enzymatic activity against aromatase (IC₅₀=16.
5
µg/mL). From the extract, two new geranylated coumarins, mammeasins C (1) and
D
(
2
), were isolated together with seven coumarins:
8
-hydroxy-
5
-methyl-7-(
3
,7-dimethyl-octa-
2
,
6
-dienyl)-
9
-(
2
-methyl-1-oxobutyl)-
4
,
5
-dihydropyrano[
4
,
3
,
2
-de]chromen-
2
-one (
9
),
8
-hydroxy-
5
-methyl-7-(
3
,7-dimethyl-octa-
2
,
6
-dienyl)-
9
-(
3
-methyl-1-oxobutyl)-
4
,
5
-dihydropyrano[
4
,
3
,
2
-de]chromen-
2
-one (10), mammeas A/AA (14), A/AB (15), A/AA cyclo
D
(18),
E
/
BA
(23), and
E
/BC cyclo
D
(25). The structures of 1 and
2
were elucidated on the basis of spectroscopic evidence. Among the isolates including 17 previously reported coumarins, 1 (IC₅₀=
2
.7 µM),
2
(
3
.
6
µM), and mammea
B
/AB cyclo
D
(21,
3
.1 µM) showed relatively strong inhibitory activities comparable to the activity of the synthetic nonsteroidal aromatase inhibitor aminoglutethimide (
2
.0 µM).
抄録全体を表示

PDF形式でダウンロード (635K) HTML形式で全画面表示
BINDING OF TOBRAMYCIN TO ESCHERICHIA COLI RIBOSOMES: CHARACTERISTICS AND EQUILIBRIUM OF THE REACTION

FRANÇOIS LE GOFFIC, FRÉDÉRIC TANGY, BERNARD MOREAU

The Journal of Antibiotics
1979年 32 巻 12 号 1288-1292
発行日: 1979年
公開日: 2006/04/12

DOI https://doi.org/10.7164/antibiotics.32.1288

ジャーナルフリー

抄録を表示する抄録を非表示にする

A sample of [^{3H
] tobrarnycin (5
, 000 Ci/Mole) has been synthetized and incubated with
the bacterial ribosome and its subunits. The results obtained show that this antibiotic has
two types of binding sites. The primary one is probably responsible for the inhibition of
protein synthesis whereas the secondary one is probably related to the misreading and reading
tiirough of the messenger RNA.
抄録全体を表示}

PDF形式でダウンロード (2092K)
Syntheses of
6
,
6
a, 7,
8
,
9
, 10, 10a, 11-Octahydro-11-oxodibenz [
b
,
e
] oxepins and
6
,
6
a, 7,
8
,
9
, 10, 10a, 11-Octahydro-11-oxodibenzo [
b
,
e
] thiepins

黒川美貴雄, 吉田耕治, 永井保嵩, 宇野準

Chemical and Pharmaceutical Bulletin
1983年 31 巻 12 号 4312-4318
発行日: 1983/12/25
公開日: 2008/03/31

DOI https://doi.org/10.1248/cpb.31.4312

ジャーナルフリー

抄録を表示する抄録を非表示にする

Two new partially saturated tricyclic ring systems,
6
,
6
a, 7,
8
,
9
, 10, 10a, 11-octahydro-11-oxodibenz [
b
,
e
] oxepins (
3
a and
3
b
), and -thiepins (
4
a and
4
b
) were synthesized. Compounds
4
a and
4
b
were desulfurized to give a pair of isomeric
2
-methylbenzoylcyclohexanes (10a and 10
b
). Deuterated
4
a and
4
b
(11a and 11
b
) were prepared starting from butadiene-
d₆
(12). The stereochemical features of
3
a (trans),
3
b
(cis),
4
a (trans) and
4
b
(cis) are compared with those of 10a, 10
b
, 11a and 11
b
on the basis of proton nuclear magnetic resonance data.
抄録全体を表示

PDF形式でダウンロード (614K)
わが国における主要中晩生および香酸カンキツ染色体のCMA染色

山本雅史, 久保達也, 冨永茂人

園芸学会雑誌
2005年 74 巻 6 号 476-478
発行日: 2005年
公開日: 2006/02/24

DOI https://doi.org/10.2503/jjshs.74.476

ジャーナルフリー

抄録を表示する抄録を非表示にする

わが国における主要中晩生および香酸カンキツ染色体のクロモマイシン
A₃
(CMA) 染色を行った. 染色体はCMA(+) バンドの有無および位置から
5
種類に区分できた. すなわち, CMA(+) をA: 両端および動原体近傍に有する,
B
: 一方の端部と動原体近傍に有する, C: 両端に有する,
D
: 一方の端部に有する,
E
: CMA(+) がない, である. 各種はこれらのうち
4
,
5
種類の染色体を有し, 独自のCMAバンドパターンを示した. ハッサクでは1A+1C+
8
D
+
8
E
, ヒュウガナツでは
2
A+
2
C+
5
D
+
9
E
, ‘川野なつだいだい’では1A+
2
C+7
D
+
8
E
, ‘宮内伊予柑’では1A+1
B
+1C+
8
D
+7
E
, タンカン‘垂水1号’では1A+1
B
+1C+
8
D
+7
E
, カボスでは
3
B
+
2
C+
5
D
+
8
E
, スダチでは1
B
+
2
C+
9
D
+
6
E
およびユズ‘山根’では
2
B
+1C+11
D
+
4
E
であった. 以上の結果, 本研究においても近縁の種間では似通ったCMAバンドパターンが観察された.
抄録全体を表示

PDF形式でダウンロード (572K)
カンキツ主要種における染色体の CMA 染色

山本雅史, Abkenar Asad Asadi, 松本亮司, 根角博久, 吉田俊雄, 國賀武, 久保達也, 冨永茂人

園芸学会雑誌
2007年 76 巻 1 号 36-40
発行日: 2007年
公開日: 2007/03/06

DOI https://doi.org/10.2503/jjshs.76.36

ジャーナルフリー

抄録を表示する抄録を非表示にする

カンキツ主要12種を用いて染色体のクロモマイシン
A₃
(CMA) 染色を行った．染色体は CMA(+) バンドの有無および位置から 7 種類に区分できた．すなわち，CMA(+) を A: 両端および動原体近傍に有する，
B
: 一方の端部と動原体近傍に有する，C: 両端に有する，
D
: 一方の端部に有する，
E
: CMA(+) がない，F: 動原体近傍に有する，Dst: 付随染色体を有する
D
型，である．各種はこれらのうち
2
～
6
種類の染色体を有し，独自の CMA バンドパターンを示した．C. medica では
2
B
+
8
D
+
8
E
，C. limon では 1
B
+ 1C +
8
D
+
8
E
，C. aurantifolia では
2
B
+
9
D
+ 7
E
，C. aurantium では 1A + 1
B
+ 1C + 7
D
+
8
E
，C. sinensis では
2
B
+
2
C + 7
D
+ 7
E
，C. maxima では
3
A +
3
C +
4
D
+
8
E
，C. paradisi では
2
A +
3
C +
6
D
+ 7
E
，C. ichangensis では
2
B
+
2
C + 12
D
+
2
E
，C. latipes では
2
A +
5
C +
8
D
+
3
E
，C. micrantha では 1
B
+ 11
D
+
4
E
+
2
Dst，C. macroptera では
2
B
+ 1C + 11
D
+
3
E
+ 1F，C. hystrix では
3
B
+ 1C +
8
D
+
3
E
+
2
F + 1Dst であった．

抄録全体を表示

PDF形式でダウンロード (166K)

J-STAGEへの登録はこちら（無料）