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Unit dual quaternion-based pose optimisation for visual runway observations

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IET Cyber-Systems and Robotics 2020年第4期2卷 181-189页

作者： galen Brambley Jonghyuk Kim The Australian National University CanberraAustralia Centre for Autonomous Systems University of Technology SydneySydneyAustralia

This study addresses the pose estimation problem of an aircraft runway using visual observations in a landing approach *** authors utilised the fact that the geodetic coordinates of most runways are known precisely with highly visible ***,the runway observations can increase the level of situational awareness during the landing approach,providing additional redundancy of navigation and less reliance on global positioning system.A novel pose optimisation algorithm is proposed utilising unit dual quaternion for the runway corner observations obtained from a monocular *** estimated runway pose is further fused with an inertial navigation system in an extended Kalman *** open-source flight simulator is used to collect and process the visual and flight dataset during the landing approach,demonstrating reliable runway pose estimates and the improved inertial navigation solution.

关键词： visual visible fused

Adding Value to Crop Production Systems by Integrating Forage Cover Crop Grazing

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American Journal of Plant Sciences 2024年第3期15卷 180-192页

作者： Robert B. Mitchell Daren D. Redfearn Kenneth P. Vogel Terry J. Klopfenstein galen er.ckson P. Stephen Baenziger Bruce E. Anderson Mary E. Drewnoski Jay Parsons Steven D. Masterson Marty R. Schmer Virginia L. Jin USDA-ARS Wheat Sorghum and Forage Research Unit University of Nebraska-Lincoln Lincoln NE USA Department of Agronomy and Horticulture University of Nebraska-Lincoln Lincoln NE USA Department of Animal Science University of Nebraska-Lincoln Lincoln NE USA Department of Agricultural Economics University of Nebraska-Lincoln Lincoln NE USA USDA-ARS Agroecosystem Management Research Unit University of Nebraska-Lincoln Lincoln NE USA

In addition to their value as cereal grains, wheat (Triticum aestivum L.) and triticale (× Triticosecale Wittmack) are important cool-season annual forages and cover crops. Yearling steer (Bos taurus) performance was compared in the spring following autumn establishment as for age cover crops after soybean [Glycine max (L.) Merr.] grain harvest. Replicated pastures (0.4 ha) were no-till seeded in three consecutive years into soybean stubble in autumn, fertilized, and grazed the following spring near Ithaca, NE, USA. Each pasture (n = 3) was continuously stocked in spring with four yearling steers (380 ± 38 kg) for 17, 32, and 28 d in 2005, 2006, and 2007, respectively. In 2005, average daily gain (ADG) for steers grazing triticale exceeded the ADG for wheat by 0.31 kghd-1d-1. In 2006, wheat ADG exceeded that for triticale by 0.12 kghd-1d-1. In 2007, steers grazing wheat lost weight, while steers grazing triticale gained 0.20 kghd-1d-1. Based on the 3-year average animal gains valued at $1.32 kg-1, mean net return ($ ha-1 yr-1) was $62.15 for triticale and $22.55 for wheat. Since these grazed cover crops provide ecosystem services in addition to forage, grazing could be viewed as a mechanism for recovering costs and adds additional value to the system. Based on this 3-year grazing trial, triticale was superior to wheat and likely will provide the most stable beef yearling performance across years with variable weather for the western Cornbelt USA.

关键词： Cover crops Soybean Triticale Wheat

Biotic resistance limits the invasiveness of the western flower thrips, Frankliniella occidentalis （Thysanoptera： Thripidae）, in Florida

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Insect Science 2016年第2期23卷 175-182页

作者： Joe Funderburk galen Frantz Charles Mellinger Kara Tyler-Julian Mrittunjai Srivastava North Florida Research and Education Center University of Florida Florida 32351 USA Glades Crop Care Inc. Jupiter Florida 33458 USA

The spread of the western flower thrips, Frankliniella occidentalis （Pergande）, has resulted in the world-wide destabilization of established integrated pest management programs for many crops. It is hypothesized that frequent exposure to insecticides in intensive agriculture selected for resistant populations, which allowed invasive populations in the eastern USA to overcome biotic resistance from the native community of species. Research conducted in Florida to understand the role of biotic factors in limiting the abundance of the western flower thrips is reviewed. Orius spp. （Hemiptera： Anthocoridae） are effective predators that suppress populations of thrips on crop and non-crop hosts in southern and northern Florida. Orius are more effective predators of the western flower thrips than the native flower thrips, E tritici （Fitch） and E bispinosa （Morgan）. The native species are competitors of the western flower thrips. Excessive fertilization and the use of broad-spectrum insecticides in crop fields further enhances populations of the western flower thrips. Interactions with native species clearly limit the abundance of western flower thrips in Florida, but populations are abundant in fertilized crop fields where application of insecticides excludes predators and competitor species.

关键词： disturbed habitat integrated pest management managing pest invasion resistance to invasion thrips pests

Honeycomb-like MXene/NiFeP_(x)–NC with“continuous”single-crystal enabling high activity and robust durability in electrocatalytic oxygen evolution reactions

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Journal of Advanced Ceramics 2023年第3期12卷 553-564页

作者： Xiaojun Zeng Yifei Ye Yongqing Wang Ronghai Yu Martin Moskovits galen D.Stucky Advanced Ceramic Materials Research Institute School of Materials Science and EngineeringJingdezhen Ceramic UniversityJingdezhen 333403China School of Materials Science and Engineering Beihang UniversityBeijing 100191China Department of Chemistry and Biochemistry University of California Santa BarbaraCA 93106USA

The development of low-cost,stable,and robust non-noble metal catalysts for water oxidation is a pivotal challenge for sustainable hydrogen production through electrocatalytic water ***,such catalysts suffer from high overpotential and sluggish kinetics in oxygen evolution reactions(Oers).Herein,we report a“continuous”single-crystal honeycomb-like MXene/NiFeP_(x)–N-doped carbon(NC)heterostructure,in which ultrasmall NiFeP_(x)nanoparticles(NPs)encapsulated in the NC are tightly anchored on a layered ***,this MXene/NiFeP_(x)–NC delivers outstanding Oer catalytic performance,which stems from“continuous”single-crystal characteristics,abundant active sites derived from the ultrasmall NiFeP_(x)NPs,and the stable honeycomb-like heterostructure with an open *** experimental results are rationalized theoretically(by density functional theory(DFT)calculations),which suggests that it is the unique MXene/NiFeP_(x)–NC heterostructure that promotes the sluggish Oer,thereby enabling superior durability and excellent activity with an ultralow overpotential of 240 mV at a current density of 10 mA×cm^(−2).

关键词： layered MXene ultrasmall NiFePx nanoparticles(NPs) “continuous”single-crystal honeycomb-like heterostructure oxygen evolution reaction(Oer)activity

Prospective and long-term evaluation of erect penile length obtained with inflatable penile prosthesis to that induced by intracavernosal injection

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Asian Journal of Andrology 2009年第4期11卷 411-416页

作者： Run Wang galen E Howard Anthony Hoang Jiu-Hong Yuan Hao-Cheng Lin Yu-Tian Dai Division of Urology University of Texas Medical School at Houston TX 77030 USA Department of Urology University of Texas MD Anderson Cancer Center Houston TX 77030 USA Department of Urology Affiliated Drum Tower Hospital Nanjing University School of Medicine Nanjing 210008 China

We compared erect penile length after inflatable penile prosthesis （IPP） implantation with that induced by intracavemosal injection （ICI） before surgery. A total of 11 patients with full erections induced by ICI of 0.25 mL of Trimix （papaverine, phentolamine and prostaglandin E 1） at the time of penile color duplex Doppler ultrasonograpby were enrolled in this study. The patients subsequently underwent IPP implantation as the ultimate treatment for their erectile dysfunction （ED）. erect penile length consequent to IPP implantation was measured at 6 weeks, 6 months and at I year after surgery. The Sexual Health Inventory for Men （SHIM） was administered before, and at 6 months and 1 year after IPP implantation. erect penile length （mean ± s.c.） as induced by ICI was 13.2 ± 0.4 cm, whereas the lengths attained with IPP were 12.4 ± 0.3, 12.5 ± 0.3 and 12.5 ± 0.4 cm at the sixth week, sixth month and 1-year follow-ups, respectively. There were 0.83 ± 0.25, 0.75 ± 0.20 and 0.74 ± 0.15 cm decreases in erect penile length at 6 weeks, 6 months and 1 year, respectively, after IPP implantation when compared with that after ICI （P 〈 0.05）. The SHIM scores for patients reporting shorter penises were the same as those for patients without complaints at the 6-month and 1-year follow-ups （P 〉 0.05）. To our knowledge, this is the first study to objectively show a significant decrease in erect penile length after IPP implantation when compared with that after ICI. However, this decrease did not affect the effectiveness of IPP in treating ED.

关键词： erectile dysfunction intracavemosal injection length penile prosthesis radical prostatectomy

Multimodal cardiovascular imaging : principles and clinical applications / Olle Pahlm, galen S. Wagner, [editors].

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《利用适应性工具包评估绿色基础设施在减少暴雨径流和污染负荷方面的效用一一以美国得克萨斯州加利纳帕克市为例》更正

2011年

作者： Olle Pahlm galen S. Wagner [editors].

来源：畅想之星图书光盘版（南... 评论

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景观设计学（中英文） 2024年第2期12卷 85-85页

作者： Rui ZHU galen NEWMAN Sunghoon HAN James KAIHATU Tianyi WANG Department of Landscape Architecture and Urban Planning Texas A&M University College Station TX 77843 USA Zachry Department of Civil and Environmental Engineering Texas A&M University College Station TX 77843 USA

Globalization of Traditional Chinese Medicinal products And New Regulatory Structures in the European Union

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世界科学技术-中医药现代化 2009年第1期11卷 206-213,205页

作者： Emiel Van galen Burt Kroes Medicines Evaluation Board Agency PO BOX 16229 2500 BE The Hague the Netherlands

Traditional Chinese Medicine (TCM) , Registration, EU pharmaceutical legislation, Traditional Herbal Medicinal Products, tHMP, quality, safety, efficacy, traditional use, EMEA, European Medicines Agency, European Phar... 详细信息

关键词：欧洲中医医疗卫生事业发展现状

In situ generated thrombin in the protein corona of zeolites： Relevance of the functional proteins to its biological impact

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Nano Research 2014年第10期7卷 1457-1465页

作者： Yunlong Li Xiaofeng Liao Xiaoxi Zhang Guicen Ma Shuai Zuo Liping Xiao galen D. Stucky Zhugang Wang Xian Chen Xiaoqiang Shang Jie Fan Key Lab of Applied Chemistry of Zhejiang Province Zhejiang University Hangzhou 310027 China Department of Chemistry Fudan University Shanghai 200433 China Department of Chemistry and Biochemistry University of California San ta Barbara CA 93106 USA Department of Medical Genetics Shanghai Jiao Tong University School of Medicine Shanghai 200025 China Department of Biochemistry and Biophysics School of Medicine University of North Carolina-Chapel Hill NC 27599 USA

Adsorption of plasma proteins to nanomaterial surfaces has a great influence on their bio-functionality. However, there is limited understanding of the relationship between the functional proteins in the protein corona and the biological identity of the materials. Here we show that the in situ generated thrombin in the protein corona of a Ca-zeolite surface displays a calcium-dependent, unusually high （-3,000 NIH U/mg） procoagulant activity, which is even stable against antithrombin deactivation. Removing the encapsulated Ca^2＋ in the zeolites leads to deactivation by antithrombin. Our observations suggest that the thrombin activity can be regulated by the inorganic surface and cations. Most importantly, our discovery indicates the link between the biomolecules in the protein corona and the procoagulant activity of the materials, providing a new molecular basis for the procoagulant mechanism for zeolite hemostatics.

关键词： protein corona zeolite thrombin activity procoagulant activity calcium