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Minor, Grant,Kapalka, Jason,Fisher, Chad,Paley, William,Chen, Kevin,Kinakin, Maxim,Earle, Isaac,Moss, Bevan,Bricault, Pierre,Gottberg, Alexander Korean Nuclear Society 2021 Nuclear Engineering and Technology Vol.53 No.4
TRIUMF, Canada's particle accelerator centre, is constructing a new high-power ISOL (Isotope Separation On-Line) facility called ARIEL (Advanced Rare IsotopE Laboratory). Thick porous targets will be bombarded with up to 48 kW of 480 MeV protons from TRIUMF's cyclotron, or up to 100 kW of 30 MeV electrons from a new e-linac, to produce short-lived radioisotopes for a variety of applications, including nuclear astrophysics, fundamental nuclear structure and nuclear medicine. For efficient release of radioisotopes, the targets are heated to temperatures approaching 2000 ℃, and are exposed to GSv/h level radiation fields resulting from intended fissions and spallations. Due to these conditions, the operational life for each target is only about five weeks, calling for frequent remote target exchanges to limit downtime. A few days after irradiation, the targets have a residual radiation field producing a dose rate on the order of 10 Sv/h at 1 m, requiring several years of decay prior to shipment to a national disposal facility. TRIUMF is installing new remote handling infrastructure dedicated to ARIEL, including hot cells and a remote handling crane. The system design applies learnings from multiple existing facilities, including CERN-ISOLDE, GANIL-SPIRAL II as well as TRIUMF's ISAC (Isotope Separator and ACcelerator).
An elliptical fracture criterion for mixed mode fracture I+II emanating from notches
El Minor, H.,Pluvinage, G.,Azari, Z. Techno-Press 2007 Structural Engineering and Mechanics, An Int'l Jou Vol.26 No.1
Some mixed mode fracture criterion may be converted in to elliptical or ellipsoidal formula with the aid of mathematical translation. Hence, the crack initiation in mixed mode fracture I+II emanating from notches, has been studied using notched circular ring specimens. On the basis of Irwin (1957) theory, a new criteria in mixed mode fracture I+II, based fracture elliptic criterion and notch stress intensity factors has been developed.
An elliptical fracture criterion for mixed mode fracture I+II emanating from notches
H. El Minor,G. Pluvinage,Z. Azari 국제구조공학회 2007 Structural Engineering and Mechanics, An Int'l Jou Vol.26 No.1
Some mixed mode fracture criterion may be converted in to elliptical or ellipsoidal formula with the aid of mathematical translation. Hence, the crack initiation in mixed mode fracture I+II emanating from notches, has been studied using notched circular ring specimens. On the basis of Irwin (1957) theory, a new criteria in mixed mode fracture I+II, based fracture elliptic criterion and notch stress intensity factors has been developed.
Rak Chun Seong(成樂春)해리 시 마이너(Harry C. Minor),Eun Hi Hong(洪殷憙) 한국육종학회 1986 한국육종학회지 Vol.18 No.1
Germination and seedling elongation of soybeans(cults : ‘Essex’ and ‘Williams’), and sunflowers cults. ‘Seed Tec’ 327 and ‘SIGCO 449’) were measured at three temperatures(15.0, 22.5, and 30.0 C) and four soil water potentials(-1.80, -0.50, -0.04, and 0.02 MPa), with and without treatment with super slurper. Measurements were made at 0, 1, 2, 4, and 8 days. Seedling moisture uptake and seedling development were affected by temperature, soil water potential, and cultivar of each of the two species. Super slurper did not significantly affect seedling growth. Highly significant positive correlations were found between seedling moisture content and seedling length. Negative correlations were found between seedling dry weight and the other dependent variables. Multiple regression equations for seedling moisture content of two species were developed as a function of cultivar, temperature, soil water potential, and interaction terms in germination time. Soybeans required more time to achieve the initial one cm of seedling length than sunflowers at the lower soil water potential(-1.80 MPa), but less time at the high soil water potential(-0.02 MPa).
Erratum: Cis-regulatory architecture of a brain signaling center predates the origin of chordates
Yao, Yao,Minor, Paul J,Zhao, Ying-Tao,Jeong, Yongsu,Pani, Ariel M,King, Anna N,Symmons, Orsolya,Gan, Lin,Cardoso, Wellington V,Spitz, Franç,ois,Lowe, Christopher J,Epstein, Douglas J Nature Publishing Group, a division of Macmillan P 2016 Nature genetics Vol.48 No.8
Forest mammal roadkills as related to habitat connectivity in protected areas
Kang, W.,Minor, E. S.,Woo, D.,Lee, D.,Park, C. R. Springer Science + Business Media 2016 Biodiversity and conservation Vol.25 No.13
<P>Fragmentation of wildlife habitat by road development is a major threat to biodiversity. Hence, conservation and enhancement of habitat connectivity in roaded landscapes are crucial for effectively maintaining long-term persistence of ecological processes, such as gene flow and migration. Using multivariate statistical techniques combined with graph theoretical methods, we investigated the influence of road-crossing habitat connectivity and road-related features on roadkill abundance of forest mammals in protected areas of South Korea. Because species have different dispersal abilities and thus connectivity would differ between them, we explored three different groups of road-killed mammals, categorized as small, intermediate, and large ones. We found that in all three mammal groups, roadkills are increased on roads that intersect high-connectivity routes. Furthermore, the effect of habitat connectivity on roadkill abundance was scale-dependent. The roadkill abundances of small, intermediate, and large mammals were related with connectivity measured at scales ranging between 100 and 300 m, between 5 and 7 km, and between 10 and 25 km, respectively. Our finding with regard to scale-dependency highlights the importance of maintaining movement and connectivity across roads at multiple scales based on the dispersal potential of different species when planning conservation strategies for forest mammalian roadkill mitigation.</P>
Seong, Rak-Chun,Minor, Harry C.,Park, Keun-Yong The Korean Society of Crop Science 1987 Korean journal of crop science Vol.32 No.1
삼투처리와 무처리의 대두종자(품종 :Williams)에 대하여 두가지 온도(15, 3$0^{\circ}C$)에서 두가지의 종자수분함량(30%, 50%)으로 조절된 조건으로 0. 2, 4 및 8일간 전처리함에 있어서 시간별 세세구배치법 4반복으로 배치하여 발아와 묘신장을 조사하였던 바 주요결과는 다음과 같다. 1. 콩의 묘신장은 30에서 2일간 전처리함으로서 촉진되었으나 같은 온도에서 전처리기간이 길수록 억제되었다. 2. 삼투처리후 전처리된 종자는 수분흡수와 묘신장이 떨어졌다. 3. 종자수분함량이 50%로 조절된 뒤 전처리된 것은 체의 수분함량을 증가시켰으며 4일간까지의 전처리는 묘신장을 크게 하였다. 4. 묘의 건물중에서는 전처리온도가 3$0^{\circ}C$ 일때와 종자수분함량이 50%로 조절되어 8일간 전처리하였을 때 감소되었다. Germination and seedling length of soybean seeds (cultivar: Williams) with and without polyethylene glycol-8000 (PEG) treatments were measured following preconditioning at two temperatures (15 and 30$^{\circ}C$) and two moisture levels 〔low (30 percent) and high (50 percent seed water content)〕 for 0, 2, 4, or 8 days. A split-split plot in time was used with four replications. Observations were made after two days of germination at 30$^{\circ}C$ Seedling growth accelerated with two days of preconditioning at 30$^{\circ}C$, but was reduced as preconditioning duration increased up to eight days at the same temperature. PEG treated preconditioned seeds exhibited reduced moisture uptake and seedling growth. Preconditioning at a high moisture level increased seedling moisture content and also increased seedling length until four days of preconditioning duration. Seedling dry weight decreased when preconditioning temperature was 30$^{\circ}C$ and when the high moisture level of preconditioning was continued for eight days.
R. Kant,M.A. Minor,S.A. Trewick 한국응용곤충학회 2012 Journal of Asia-Pacific Entomology Vol.15 No.1
Host age-dependent fitness of Diaeretiella rapae was studied on cabbage aphid Brevicoryne brassicae. When given a choice of nymphs of four different ages (1, 3, 5 and 7 days), females showed a strong preference for oviposition in older nymphs, which were also the largest in the body size, and left the majority of younger nymphs unparasitised. More than 70% of offspring emerged from 5-day and 7-day old parasitised nymphs. Parasitoids develop faster in older hosts than in younger hosts. Development time of males was shorter than females in older hosts, but the development time of males and females was similar in younger hosts. The body size of adult D. rapae was positively correlated with the age of the hosts in which they developed. The sex ratio of offspring was found to be female-biased. A higher proportion of females emerged from older hosts. D. rapae females emerged from older hosts lived significantly longer. The potential fecundity of the females emerged from older (larger in body size) hosts was significantly greater than of those emerged from younger hosts with smaller bodies. Results suggest that D. rapae preferred older hosts to maximise the reproductive fitness gain. The oviposition strategy of D. rapae is discussed in the context of efficiency of this parasitoid in biological control programmes.