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天文学进展 1998年第2期16卷 87-97页

作者： helmuta.abt 美国基特峰国家天文台

科学期刊的出版和发行技术正在迅速变化．主要对Ap.J.如何使用电子投稿方式及该杂志的网上版作了介绍．同时也叙述了较快的审稿及非常快速的出版等方面的进展。

关键词：电子方式投稿网上版电子出版物

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A Stellar Life

Research in Astronomy and Astrophysics 2022年第11期22卷 1-13页

作者： Helmut A.abt Kitt Peak National Observatory Box 26732TucsonAZUnited States of America

In this autobiography of 70+yr of publishing astronomical papers,I summarize some of my major fields of research,such as(1)hfs in the solar spectrum,(2)the atmospheres of supergiants,(3)shock waves in Cepheids,(4)the Crab Nebula,(5)frequencies of binaries,(6)exoplanets,(7)starting Kitt Peak National Observatory,(8)catalogs,(9)China,(10)editing the Astrophysical Journal,(11)blue stragglers,(12)the Local Interstellar Bubble,and(13)publication studies.

关键词： biographies stars:general ISM:supernova remnants

An earlier explosion date for the Crab Nebula supernova

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Research in Astronomy and Astrophysics 2018年第4期18卷 1-6页

作者： Helmut A.abt John W.Fountain Kitt Peak National Observatory Box 26732 Tucson AZ 85726-6732 USA

The Chinese first reported the Crab Nebula supernova on 1054 July 5. Ecclesiastical documents from the near east reported it in April and May of 1054. More than 33 petroglyphs made by Native Americans in the US and Mexico are consistent with sightings both before and after conjunction with the Sun on 1054 May 27. We found a petroglyph showing the new star close to Venus and the Moon, which occurred on 1054 April 12 and April 13, respectively. Collins et al., using the four historical dates, derived a light curve that is like that of a Type Ia supernova. The only remaining problem with this identification is that this supernova was near maximum light for 85 d, which is unlike the behavior of any known supernova.

关键词： celestial mechanics — history and philosophy of astronomy — stars supernovae individual(Crab Nebula)

Mating behavior of Psammotettix alienus （Hemiptera： Cicadellidae）

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Insect Science 2018年第1期25卷 148-160页

作者： Maja Derlink Isabelle abt Romain Mabon Charlotte Julian Meta Virant-DoberletI Emmanuel Jacquot Department of Organisms and Ecosystems Research National Institute of Biology Vecna pot 111 1000 Ljubljana Slovenia INRA- Cirad-Montpellier SupAgro UMR 385 BGPI Cirad TA A-54K 34398 Montpellier France Bayer CropScience 16 rue Jean Marie Leclair - CS 90106 69266 Lyon Cedex 09 France

The Wheat dwarf virus, the causal agent of the wheat dwarf disease, is trans- mitted by leafhoppers from the genus Psammotettix and currently the main protection strategy is based on the use of insecticide treatments. Sustainable management strategies for insect vectors should include methods that are targeted to disrupt reproductive behavior and here we investigated the mating behavior of Psammotettix alineus （Dahlbom 1850） in order to determine the role of vibrational signals in intra-specific communication and pair formation. Both genders spontaneously emit species- and sex-specific calling songs that consisted of regularly repeated pulse trains and differ primarily in pulse train duration and pulse repetition time. Females preferred the conspecific male calling song. After a coordinated exchange of pulse trains, the male approached the stationary female. During the close range courtship and also immediately prior to copulatory attempts distinct male vibrational signals associated with wing flapping and wing vibrations were recorded from the substrate. In the presence of a receptive female, competing males emitted vibrational signals most likely aimed to interfere with male-female interaction. Mated females re- gained sexual receptivity after they laid eggs. Although results suggest that the viruliferous status of insects may have an effect on vibrational songs, our current results did not reveal a significant effect of virus on leafhopper performance in mating behavior. However, this study also suggests, that detailed understanding ofplant-vecto^virus interactions relevant for vector mating behavior is essential for trying new approaches in developing future control practices against plant viruses transmitted by insect vectors.

关键词： mating behavior Psammotettix alienus vibrational communication wheat dwarf virus

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如何写好天文学论文(英文)

天文学进展 2002年第4期20卷 299-301页

作者： Helmut A.abt 美国基特峰国家天文台

对如何撰写将要在国际上发表的天文学论文给出一些建议。讲述了论文的每一部分(题目、摘要、引言、主要内容、图表及参考文献等)如何可以写得简洁而又能清晰地表达出观点。这是作者根据在多年的编辑生涯中审阅了许多效果迥异的论文后的... 详细信息

对如何撰写将要在国际上发表的天文学论文给出一些建议。讲述了论文的每一部分(题目、摘要、引言、主要内容、图表及参考文献等)如何可以写得简洁而又能清晰地表达出观点。这是作者根据在多年的编辑生涯中审阅了许多效果迥异的论文后的经验之谈。

关键词：天文学论文简洁清晰

Measurement of the Potassium Content of Different Food Samples with High Purity Germanium Detectors

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Detection 2016年第3期4卷 73-85页

作者： Iris abt Lucia Garbini Oliver Schulz Max-Planck-Institute for Physics Munich Germany

Measurements of the potassium content of samples of food, performed with High Purity Germanium detectors, are presented in this paper. The potassium content was measured by identifying the 1460 keV photons produced in the decay of the isotope 40K. Samples were selected, for which a high potassium content was expected. The measurements confirmed the expectations qualitatively, but not always quantitatively. Especially the expected dependence of the potassium content of chocolate on the listed percentage of cacao could not be confirmed.

关键词： HPGe Detectors Gamma Spectroscopy Food Testing

Forest Wetland Area and the Forest Sector Economy in the U.S. South

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Open Journal of Forestry 2018年第3期8卷 409-428页

作者： Frederick Cubbage Robert abt Ray Sheffield Curt Flather James Wickham North Carolina State University Raleigh North Carolina USA Consultant Asheville North Carolina USA USDA Forest Service Fort Collins Colorado USA U.S Environmental Protection Agency Research Triangle Park North Carolina USA

This article reviews current data on forest wetlands and their economic contributions in the South, ranging from Texas to Virginia. Based on USDA Forest Service Forest Inventory and Analysis (FIA) data, the wetland category comprised 17.7% of timber land area on all private and public lands in the South. This included 4.25 million ha of hydric sites;0.77 million ha mesic wet;9.55 million ha mesic, with only seasonal access;for a total of 14.57 million ha. The Natural Resource Inventory (NRI) for 2012 on private lands estimated that there were 14.71 million ha forested wetlands, which comprised 17.7% of all forested private forest area. The 2015 National Land Cover Data for the South estimated that there were 17.8 million ha of woody wetlands, which comprised 8% to 12% of the southern land area, and there were also 4.45 million ha of emergent herbaceous sites. About 10% of the southern timber forest sector would be based on harvests from wetland forests economy ($455 million per year), while the 17.7% of wetland land area would provide a proportional share of the annual nontimber forest products ($44 million) and payments for ecosystem services ($134 million). Wetlands also provide important nontimber forest products, and ecosystem services, which are beginning to develop active private and public markets.

关键词： Forest Wetlands Area Economics Valuation

Nerve regeneration in vascularized composite allotransplantation:current strategies and future directions

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Plastic and Aesthetic Research 2015年第1期2卷 226-235页

作者： Anirudh Arun Nicholas B.abt Sami Tuffaha Gerald Brandacher Angelo A.Leto Barone Department of Plastic and Reconstructive Surgery Johns Hopkins University School of MedicineBaltimoreMD 21287USA

Vascularized composite allotransplantation(VCA)has emerged as a viable treatment option for limb and face reconstruction of severe tissue *** recovery after VCA requires not only effective immunosuppression,but also consideration of peripheral nerve regeneration to facilitate motor and sensory reinnervation of donor *** the time of transplantation,the donor and recipient nerves are typically coapted in an end-to-end *** transplantation,there are no therapies available to enhance nerve regeneration and graft reinnervation,and functional outcomes are dependent on the recipients’innate regenerative *** outcomes to date have been promising,but there is still much room for improvement,studies have demonstrated reliable return of protective sensation(pain,thermal,gross tactile),while discriminative sensation and motor function show more inconsistent *** order to maximize the benefit afforded to the by VCA,we must develop consistent and reliable procedures and therapies to ensure effective nerve regeneration and functional *** technologies,such as nerve guidance conduits and fibrin glues,and the use of stem cells to facilitate nerve regeneration remain untested in VCA but are proving worthwhile in the context of peripheral nerve *** presents a unique set of challenges with regards to surgical techniques,postoperative regimen,and health of donor *** this review,we discuss current challenges underlying achievement of nerve regeneration in VCA and discuss novel technologies and approaches to translate nerve regeneration into functional restoration.

关键词： Adipose‑derived stem cells allograft fibrin glue nerve regeneration tacrolimus vascularized composite allotransplantation

Modeling the Impacts of EU Bioenergy Demand on the Forest Sector of the Southeast U.S.

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Journal of Energy and Power Engineering 2013年第6期7卷 1073-1081页

作者： Chudy Rafal Robert C. abt Ragnar Jonsson Jeffrey P. Prestemon Frederick W. Cubbage Department of Forestry and Environmental Resources NC State University Raleigh NC 27709 USA Swedish University of Agricultural Sciences Alnarp 230 53 Sweden USDA Forest Service Southern Research Station Raleigh NC 27709 USA

The wood-pellet trade between the U.S. （United States） and the EU （European Union） has increased substantially recently. This research analyzes the effects of EU biomass imports from the Southeast U.S. on Southeast U.S. timber prices, inventories and production and on EU imports of feedstock. The SRTS （sub-regional timber supply model） was used to simulate market responses to changes in woody biomass consumption in the U.S. and the EU between 2008 and 2038. Results indicate that the price of imported wood pellets in the EU is sensitive to future U.S. renewable energy policies, the developments of which are so far uncertain. The analysis indicates that with bioenergy demands, prices increase for U.S. softwood roundwood from 25% to 125% by 2038 depending largely on U.S. domestic policy. Demand increases led to supply responses and increased carbon storage in Southeastern U.S. over time.

关键词： Pellets forest product markets international wood trade.

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可展开精密反射器

空间电子技术 1990年第1期 62-65页

作者： abt,B 成跃进