|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Infectious proventriculitis causing runting in broilers显示文摘 | Kouwenhoven B Davelaar F G Van Walsum J | 1978 | Avian Pathol1978，7，1： | 1 |
| 2 | Infectious proventriculitis causing runting in broilers显示文摘 | Kouwenhoven B Davelaar F G Van Walsum J | 1978 | Avian Pathol1978，7，1： | 1 |
| 3 | Dropped egg production,soft shelled and shell-less eggs associated with appearance of precipitins to adenovirus in flocks of laying fowls显示文摘 | Van Eck J Davelaar F Van Den Heuvel-Plesman T A | 1976 | Avian Pathology1976，5，4： | 1 |
| 4 | Dropped egg production:soft shelled and shell-ess egg associated with appearance of precipitrus to adenovirus in flocks of laying fowl显示文摘 | VANECK J H DAVELAAR F G VANDEN T A M | 1976 | Avian Pathol1976，39，5： | 1 |
| 5 | Infectious proventriculitis causing runting in broilers显示文摘 | Kouwenhoven B Davelaar F G Van Walsum J | 1978 | Avian Pathol1978，7，1： | 1 |
| 6 | SATB1 influences expression of cytokines in colorectal cell lines and is associated with a more aggressive phenotype显示文摘 | Rygiel A M Davelaar A L Milano F | 2009 | AGA abstracts2009，，： | 1 |
| 7 | SATB1 in fluences expression of cytokines in colorectal cell lines and is associated with a more aggressive phenotype显示文摘 | Rygiel AM Davelaar AL Milano F | 2009 | AGA abstracts2009，，： | 1 |
| 8 | Dropped egg production, soft-shelled and shell- less eggs associated with appearance of precipitins to adenovirus in flocks of laying fowls 显示文摘 | Van Eck J H H Davelaar F G Van Den Heuvel-Plesma N | 1976 | Avain Pathol1976，，5： | 1 |
| 9 | Infectious proventriculitis causing runting in broilers 显示文摘 | Kouwenhoven B Davelaar F G | 1978 | Avian Pathol1978，7，1： | 1 |
| 10 | Infectious proventriculitis causing runting in broilers显示文摘 | Kou Wen Hoven B Davelaar F G | 1978 | Avian Pathol1978，7，1： | 1 |
| 11 | Dropped egg production, soft shelled and shell less eggs associ- ated with Appearance of precipitions to adenovirus in flocks of laying fowl 显示文摘 | Van Eck J H Davelaar F G Heuvel-Plesman T A | 1976 | Avian Pathol1976，5，4： | 1 |
| 12 | SATB1 influences expression of cytokines in colorectal cell lines and is associated with a more aggressive phenotype 显示文摘 | Rygiel A M Davelaar A L Milano F | 2009 | AGAabstracts2009，，： | 1 |
| 13 | Dorpped egg production, Soft shelled and shell-less eggs associated with appearance of precipitins to adenovirus in flocks of laying fowl 显示文摘 | van Eck J H H Davelaar F G van den Heuvel-Plesman T A M | 1976 | Avian Pathology1976，5，： | 1 |
| 14 | An Event Horizon Imager(EHI) Mission Concept Utilizing Medium Earth Orbit Sub-mm Interferometry显示文摘Submillimeter interferometry has the potential to image supermassive black holes on event horizon scales,providing tests of the theory of general relativity and increasing our understanding of black hole accretion processes.The Event Horizon Telescope(EHT) performs these observations from the ground,and its main imaging targets are Sagittarius A~* in the Galactic Center and the black hole at the center of the M87 galaxy.However,the EHT is fundamentally limited in its performance by atmospheric effects and sparse terrestrial(u,v)-coverage(Fourier sampling of the image).The scientific interest in quantitative studies of the horizon size and shape of these black holes has motivated studies into using space interferometry which is free of these limitations.Angular resolution considerations and interstellar scattering effects push the desired observing frequency to bands above 500 GHz.This paper presents the requirements for meeting these science goals,describes the concept of interferometry from Polar or Equatorial Medium Earth Orbits(PECMEO) which we dub the Event Horizon Imager(EHI),and utilizes suitable space technology heritage.In this concept,two or three satellites orbit at slightly different orbital radii,resulting in a dense and uniform spiral-shaped(u,v)-coverage over time.The local oscillator signals are shared via an inter-satellite link,and the data streams are correlated on-board before final processing on the ground.Inter-satellite metrology and satellite positioning are extensively employed to facilitate the knowledge of the instrument position vector,and its time derivative.The European space heritage usable for both the front ends and the antenna technology of such an instrument is investigated.Current and future sensors for the required inter-satellite metrology are listed.Intended performance estimates and simulation results are given. | KUDRIASHOV V MARTIN-NEIRA M ROELOFS F FALCKE H BRINKERINK C BARYSHEV A HOGERHEIJDE M YOUNG A POURSHAGHAGHI H KLEIN-WOLT M MOSCIBRODZKA M DAVELAAR J BARAT I DUESMANN B VALENTA V PERDIGUES ARMENGOL J M DE WILDE D MARTIN IGLESIAS P ALAGHA N VAN DER VORST M | 2021 | 空间科学学报2021，41，2： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员