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    题名 作者 年代 出处 被引量
1紫花苜蓿不同品种对干旱胁迫的生理响应显示文摘以国内外20个优良紫花苜蓿品种为材料,研究了离体条件下叶片相对含水量、膜相对透性、游离脯氨酸和叶绿素含量等生理性状对干旱胁迫的响应,探讨了各种生理变化与抗旱性的关系,并结合草产量对其抗旱性进行了综合评价。结果表明,抗旱性强的品种在干旱胁迫下草产量高,叶片保水能力强,叶绿素持有率高,游离脯氨酸维持积累时间较长,维持积累量较高,能保持较高的细胞膜相对完整性。依据上述5项指标,通过系统聚类分析,将20个紫花苜蓿品种分为抗旱性强、较强、中等、较弱和弱5个等级。余玲 王彦荣 GARNETT Trevor AURICHT Geoff 韩德梁 2006草业学报2006,15,3:96
2海相页岩储层微观孔隙非均质性及其量化表征显示文摘为加深储层微观非均质性影响页岩气赋存运移的认识,以渝东南地区五峰—龙马溪组页岩储层为例,采用场发射电子显微镜、压汞、液氮吸附等手段,在微观非均质性特征提炼总结的基础上,针对微观尺度下孔隙的非均质性特征展开进一步实验与理论研究.通过图像信息处理、结构参数遴选及分形分维建模等手段,总结了储层孔隙在成因类型、孔隙结构、孔隙网络及尺度差异上的非均质性特征,利用面孔率、变异系数、孔隙曲折度、分形分维值等评价参数,构建了页岩孔隙非均质性表征评价模型,进而实现了页岩储层孔隙非均质性特征的单样品定量评价与综合定量评价,认为页岩储层孔隙在孔隙发育特征及网络组合特征等方面存在的显著非均质性,控制着气体储集能力、渗流方向.研究结果表明:该储层孔隙非均质性强,发育有微米渗流网络、基质吸附-渗流孔隙网络、夹层或砂质纹层孔隙网络等不同孔隙网络,并控制着储层品质的优劣;渗流通道在定向性上存在的非均质性及吸附孔隙空间发育的微观不均一,成为影响该储层储集、释放性能的关键因素.综合评价分析认为,赋孔集中在有机质纳米孔(有机孔隙贡献度50%以上)、脆性矿物质量分数高于40%、孔隙曲折度小于40、具有微米渗流网络与基质吸附-渗流孔隙网络两种孔隙网络的组合类型(孔隙-微裂隙配置关系好)的储层有较好的储层物性和勘探开发潜力.赵迪斐 郭英海 朱炎铭 Geoff WANG 崇璇 胡鑫蒙 2018中国矿业大学学报2018,47,2:63
3生态博物馆理念及其在少数民族社区景观保护中的作用——以贵州梭嘎生态博物馆为例显示文摘生态博物馆是兴起于20世纪70年代的一种创新的文化景观保护与展示方式,其基本理念是以生态学为基础,以特定地域某一特定群体的全部文化内涵为展示内容。与传统博物馆相比,其最明显的创新在于,它以社区为基础,以就地保护的方式进行原生态状况下的'活态文化遗产'的保护和展示。中挪合作项目贵州梭嘎生态博物馆是中国和亚洲第一座生态博物馆,是以'长角苗'民族文化景观为特征,由12个相连的苗族山区村寨组成。馆区自开放以来已接待了大量的参观游览者,在充分发挥其良好的社会展示功能的同时,也获得了较好的经济效益。从梭嘎生态博物馆的建设与运行中,也发现了一些值得进一步探讨的问题,如展示与保护内容的界定问题、文化保护与旅游发展的关系处理问题、区内接待规模与环境容量的测定问题,等等。刘沛林 Abby Liu Geoff Wall 2005长江流域资源与环境2005,14,2:41
4显花植物在提高节肢动物天敌控制害虫中的生态功能显示文摘由于农业集约化生产引起的非作物生境减少和农业化学品的过量使用减弱了农田生态系统中害虫天敌的自然控制作用。合理而有效地利用显花植物可以为害虫天敌提供食物来源和庇护场所,从而能有效地提高天敌对害虫的自然控制能力、减少化学农药的使用量。本文综述了显花植物对天敌种群的促进作用及其在果园、蔬菜和粮食作物等害虫防治中应用的最新进展,同时对进一步利用显花植物提高农业生态系统稳定性的发展方向进行了讨论。朱平阳 吕仲贤 Geoff Gurr 郑许松 Donna Read 杨亚军 徐红星 2012中国生物防治学报2012,28,4:40
5高温高压条件下深部煤层气吸附行为显示文摘为了对深部煤层吸附特性进行分析,以鄂尔多斯盆地东部主要煤层为对象,展开4组不同温度条件下煤样的高压等温吸附实验。从温度、压力、煤级等地质要素方面入手,研究较高温压条件下煤样的吸附特征。同时,通过对比分析各地质因素对吸附行为的影响,比较深部煤层吸附行为与浅部煤层吸附行为的差异性。结果表明:深部煤层的吸附特性主要受温度、压力的控制;高温条件下煤样对CH4的吸附量大大减少,且煤级、煤岩显微组分、灰分产率以及水分含量对吸附性能的影响已明显小于浅部煤层,温度、压力成为控制吸附量的决定因素。在100℃条件下,吸附量到达某一压力后随着压力的增大煤样吸附量下降,分析认为由于在此温压下,随着压力的增加,吸附相与游离相气体的密度差逐渐减小,超临界吸附已不再符合Langmuir等温吸附模型。赵丽娟 秦勇 Geoff Wang 吴财芳 申建 2013高校地质学报2013,19,4:38
6Numerical description of coalbed methane desorption stages based on isothermal adsorption experiment显示文摘Quantitative description of desorption stages of coalbed methane is an important basis to objectively understand the production of coalbed methane well,to diagnose the production state,and to optimize the management of draining and collection of coalbed methane.A series of isothermal adsorption experiments were carried out with 12 anthracite samples from 6 coalbed methane wells located in the south of the Qinshui Basin,based on the results of isothermal adsorption experiments,and an analytical model was developed based on the Langmuir sorption theory.With the model,a numerical method that adopts equivalent desorption rate and its curve was established,which can be used to characterize the staged desorption of coalbed methane.According to the experimental and numerical characterizations,three key pressure points determined by the equivalent desorption rate curvature that defines pressure-declining desorption stage,have been proposed and confirmed,namely,start-up pressure,transition pressure and sensitive pressure.By using these three key pressure points,the process of coalbed methane desorption associated with isothermal adsorption experiments can be divided into four stages,i.e.,zero desorption stage,slow desorption stage,transition desorption stage,and sensitive desorption stage.According to analogy analysis,there are differences and similarities between the processes of coalbed methane desorption identified by isothermal adsorption experiments and observed in gas production.Moreover,it has been found that larger Langmuir volume and ratio of Langmuir constants are beneficial to earlier advent of steady production stage,whereas it is also possible that the declining production stage may occur ahead of schedule.ZHANG Zheng QIN Yong Geoff X WANG FU XueHai 2013Science China Earth Sciences2013,56,6:25
7Mechanisms for flowering plants to benefit arthropod natural enemies of insect pests: Prospects for enhanced use in agriculture显示文摘noncrop 产地的减小,杀虫剂的集中的使用和骚乱的高水平与集中的庄稼生产联系了简化耕作风景并且引起生物多样性的锋利的衰落。接着,这削弱节肢动物天赋敌人提供的生物控制生态系统服务。flowering 植物的战略使用能向生来的敌人提供以一种指向得好的方式提高植物生物多样性食物来源和躲蔽处在化学杀虫剂上改进生物控制和还原剂依赖。这篇文章在果园,蔬菜和领域庄稼为生来的敌人,害虫管理上的可能的不利效果,和 flowering 植物的实际应用程序考察导出植物的食物的各种各样的类型的营养的值,大多数研究的农业系统发生了。flowering 的有效使用种在 agroecosystem 最大化昆虫害虫的生物控制的为更多的前景好,但是看情况在上面在最佳的植物的选择上,种类有选择地在害虫种类上基于生来的敌人是的生态的由机制的信息赞成了。Zhong-Xian Lu Ping-Yang Zhu Geoff M. Gurr Xu-Song Zheng Donna M. Y. Read Kong-Luen Heong Ya-Jun Yang Hong-Xing Xu 2014Insect Science2014,21,1:26
8有关交际法的若干误解显示文摘现在无论您所处的教学实际情形如何,交际语言教学法已成为英语教学中占主导地位的理论模式。不少人曾试图对交际法作一全面评定,并澄清它的主要特征(例如 Rich-ards and Rodgers 198(?) Approaches andM(?)hods in Language Teaching)。在教师培训等场合,人们也普遍认为交际法的原则已经被明确理解和接受(例如 Harmer 1991The Practice of English Language Teach-ing)。Geoff Thompson 刘精忠 1996外语教学理论与实践1996,,4:23
9土工格栅加筋膨胀土边坡稳定性的分析方法及工程应用显示文摘传统土工格栅加筋边坡稳定性分析方法忽略了侧向膨胀作用对加筋体局部稳定性的影响,并不适用于膨胀土加筋边坡。本文提出了一种土工格栅加筋膨胀土边坡稳定性分析的新方法,在保证加筋边坡整体稳定的前提下,得到了自由区因侧向膨胀而产生的附加拔出力和各土工格栅层的抗拔安全系数。通过改变土工格栅加筋间距和长度,对湖北省某膨胀土路堑边坡进行了优化设计。结果表明,膨胀土侧向膨胀引起的附加拔出力对土工格栅的抗拔稳定性有很大影响,若不考虑自由区土体的膨胀效应,将高估加筋边坡的局部稳定性。张锐 龙明旭 兰天 郑健龙 GEOFF Chao 2020Journal of Central South University2020,27,7:21
10龙马溪组页岩黄铁矿微观赋孔特征及地质意义显示文摘随着页岩气地质理论的不断完善,页岩气储层研究也更加精细、量化,黄铁矿作为页岩气储层普遍发育的物质成分,其矿物学特征、赋孔特征与地质意义引起了关注。为细化、量化对页岩储层黄铁矿的地质认识,通过氩离子抛光—场发射扫描电镜(FE-SEM)、能谱(EDS)、X射线衍射(XRD)等实验手段结合图像处理技术(Image Processing),以渝东南地区龙马溪组中下部优质页岩储层样品为例,探究页岩储层黄铁矿的发育类型和特征,量化表征评价页岩基质莓状黄铁矿在纳米尺度下的孔隙发育特征,并在此基础上讨论黄铁矿的页岩气地质意义,尤其是其储层意义。实验结果表明,莓状黄铁矿是龙马溪组页岩基质中最主要的黄铁矿类型,集合体直径介于3~10μm之间;莓状黄铁矿集合体内部晶体间有机质纳米孔发育,孔隙直径主要分布在100 nm以下,在页岩储层孔隙分类中莓状黄铁矿孔隙应归入有机成因孔隙类型;莓状黄铁矿集合体及其控制的有机质可以为页岩储层贡献0.7%~7%的孔隙比例,是对储集空间具有正贡献的、不应忽视的孔隙类型;基于图像处理技术(Image Processing)的孔隙分类表征与评价技术可以为储层孔隙研究提供新思路,是实现不同类型孔隙量化研究的可行方法。龙马溪组基质黄铁矿既可以贡献一定储集空间,也与有机质具有成因联系,可以为优质储层发育机理研究与优质储层勘探预测提供依据,在页岩气储层研究与勘探开发中具有重要地质意义。赵迪斐 郭英海 朱炎铭 Geoff Wang 刘静 崇璇 张敬霞 2018沉积学报2018,36,5:20
11论湘渝黔边区民族文化旅游区的建立显示文摘湘渝黔边区是指以传统的'武陵山区'为核心区域的3省邻近地区,大致包括湖南境内的张家界市、湘西州、怀化市,重庆的黔江区,贵州的铜仁地区和黔东南州等6个地州市,是苗族、土家族、侗族等少数民族集中聚居区,也是全国典型的老、少、边、穷山区,归属于国家'西部地区'。区域文化上的趋同性、区域旅游资源上的互补性、区域脱贫任务的紧迫性和区域旅游开发的无序性,使湘渝黔边区民族文化旅游区的建立显得十分必要。同时,具备一定基础的旅游开发现状、逐步形成的区域旅游交通网络、各地政府关于旅游业发展认识上的渐趋统一以及区域旅游中心的初步形成,使湘渝黔边区民族文化旅游区的发展成为可能。湘渝黔边区民族文化旅游区的形成,必须着手进行以下工作:迅速编制总体规划,完善旅游交通网络,建立旅游环线,推出区际旅游联合体和共同市场,多渠道吸纳资金,建立特色文化保护区等。刘沛林 Geoff Wall 张玉冰 2004经济地理2004,24,1:19
12层序地层格架及其对页岩储层发育特征的影响--以四川盆地龙马溪组页岩为例显示文摘为研究海相页岩沉积层序及其对页岩储层发育特征的控制作用,通过露头、岩芯研究及地化测试、有机质测试、矿物组分测试、孔隙发育特征测试等室内分析测试,结合测井小波分析,综合建立四川盆地龙马溪组的层序地层格架,并结合储层发育特征探讨层序与储层发育特征的关系。研究表明:研究区龙马溪组发育有两个三级层序;结合多口钻孔通过测井小波分析构建了研究区的高分辨率层序地层格架,识别出四个中期旋回A^D;对比各旋回内的储层发育特征,旋回A储层岩石学特征与旋回B^D存在显著差异,表现为储层有机质含量更高、水平层理更为发育、脆性矿物含量更高、微观储集空间(微—纳米级孔隙与微裂隙)发育程度更好,显示了层序旋回与储层物质成分、结构、力学脆性、含气性特征的显著相关关系,说明层序旋回是储层物性与含气性等发育特征的重要影响因素。基于前述研究,讨论了层序地层格架对储层发育的控制机理,层序格架下各旋回内沉积环境与沉积条件的差异导致储层沉积构造、物质成分与分布的差异,进而影响储层物性与含气性等特征;沉积盆地内高分辨率层序格架的建立可以为储层对比、评价与资源预测提供时间框架。建立了通过测井小波分析高分辨率层序地层格架进行储层分析对比的新方法,提出了基于储层小层分析建立页岩储层精细评价的新工作流程,有助于减少人为因素干扰,可以为页岩优质储层成因研究及其预测评价提供科学依据与新思路。赵迪斐 郭英海 Geoff Wang 李冠霖 曾春林 焦伟伟 2020沉积学报2020,38,2:18
13取食不同食物对小菜蛾幼虫肠道细菌多样性的影响显示文摘【目的】植食性昆虫肠道细菌的组成与其食物密切相关。本研究旨在探究小菜蛾Plutella xylostella幼虫肠道细菌多样性与其取食食物之间的关系以及它们之间相互适应的过程。【方法】本研究选取小菜蛾人工饲料品系(S)及其转寄主到结球甘蓝Brassica oleracea var. capitata、结球白菜Brassica rapa subsp. pekinensis和花椰菜Brassica olerocea var. botrytis饲养后第1代(分别为G1C, G1CC和G1WC)和第3代(分别为G3C, G3CC和G3WC)的4龄幼虫,提取小菜蛾肠道细菌基因组DNA,利用Illumina MiSeq二代高通量测序技术,分析其肠道细菌多样性和丰度。【结果】α多样性指数分析发现,取食不同食物的小菜蛾4龄幼虫肠道细菌多样性高低顺序为G1WC>G1CC>S>G1C。在菌群组成上,以人工饲料为食的S样品肠道细菌主要由厚壁菌门(Firmicutes)组成,转寄主植物后的G1C, G1CC和G1WC肠道中厚壁菌门(Firmicutes)相对丰度显著下降,G1C和G1CC小菜蛾肠道中变形菌门(Proteobacteria)相对丰度显著上升成为优势菌群,G1WC肠道中拟杆菌门(Bacteroidetes)成为优势菌群。在寄主植物上连续饲养3代后,与第1代相比,小菜蛾肠道细菌α多样性指数没有显著性改变,但在结球甘蓝和结球白菜上小菜蛾肠道菌群结构却发生了变化,相比G1C,G3C肠道中芽孢杆菌目(Bacillales)的相对丰度显著下降;相比G1CC, G3CC肠道中放线菌门(Proteobacteria)、芽单胞菌门(Gemmatimonadetes)和硝化螺旋菌门(Nitrospirae)的相对丰度均显著上升。【结论】取食人工饲料和不同寄主植物的小菜蛾幼虫肠道细菌多样性和群落构成存在显著差异,寄主植物对小菜蛾肠道微生物的结构组成具有重要的影响,且小菜蛾肠道微生物对寄主植物可能存在一个长期适应的过程。本研究为进一步探讨影响小菜蛾肠道细菌变化的因素,以及后续研究肠道细菌与寄主植物之间的互作奠定了良好的基础。吴晓露 夏晓峰 陈俊晖 Geoff M.GURR 尤民生 2019昆虫学报2019,62,10:16
14苜蓿品种对蓟马的抗性评价显示文摘在2龄和3龄二茬开花初期,调查了蓟马对来自国内外97个苜蓿品种(品系)的危害。调查结果为:蓟马在各品种上的普遍率为100%,有干枯叶片的枝条比率最大67.1%,最小为0,平均为24.3%;运用欧氏完全连锁聚类分析,供试品种对蓟马抗性可分为5个类群,抗虫性最强的品种14个(中兰1号、QS-2、大郁山、润布勒和公农2号等)、抗虫性较强的品种29个(庆阳、SA32140、YL-21、SM9808和陇中等)、抗虫性中等的品种32个(Sceptre、SA32152、阿尔冈金、金皇后和SM9809等)、抗虫性较弱的品种19个(SA16465、SA16464、SA10125、SA7090和苜蓿女王等)和抗虫性最弱的品种3个(来自中国农科院草原研究所的新疆大叶,Wl320、SA35095),5个类群的品种数分别占品种总数的14.4%,29.9%,33.0%,19.6%和3.1%。李彦忠 南志标 王彦荣 余玲 孙建华 Geoff Auricht Trevor Garnett 2006草业科学2006,23,7:14
15页岩储层成岩作用及其对储层脆性的影响——以渝西地区五峰组—龙马溪组深层页岩为例显示文摘页岩粒度细小、岩石致密、微观非均质性显著,在成岩作用改造下发育形成页岩气储层,成岩作用的研究可以为优质页岩储层发育机理提供依据。以渝西地区綦江观音桥剖面、南川泉浅1井、南川三泉剖面、大足Z-203井等代表性剖面、钻孔为例,通过X射线衍射、氩离子抛光—场发射扫描电镜、能谱、岩石薄片/光片显微观察、有机地球化学测试、力学特征测试等手段,对储层成岩作用及其对储层力学脆性的影响展开系统研究。结果表明,研究区五峰组—龙马溪组页岩物质组分、岩石结构、力学性质存在层段性差异,成岩作用阶段介于晚成岩作用阶段至极低级变质作用阶段之间;储层主要成岩作用类型可以划分为压实作用等物理性成岩作用、矿物溶蚀作用等矿物相关化学性成岩作用和有机质生烃作用等有机质相关化学性成岩作用三类。研究区五峰组—龙马溪组底部存在部分脆性矿物高于80%的超高脆性矿物含量层段,碳质—硅质富层理页岩在特殊储层成岩作用的影响下形成大量自生微晶石英,构成以微晶石英+赋孔有机质为主的显微物相组合,兼具良好的力学脆性与储集能力,而其他层段缺乏持续演化不断形成微晶石英的物质基础。储层成岩作用发生的物质基础、岩石结构、类型、作用强度在层段间的差异,是储层脆性矿物与力学性质差异的关键影响因素,应纳入储层评价与优质储层机理研究的关注范畴。赵迪斐 焦伟伟 魏源 张海杰 李利格 郭英海 Geoff Wang 2021沉积学报2021,39,4:14
16Desorption-diffusion model and lost gas quantity estimation of coalbed methane from coal core under drilling fluid medium显示文摘The differences of coalbed methane(CBM) desorption-diffusion from coal drilling-core under various drilling fluid medium are not considered in the present calculating methods of lost CBM quantity,which leads possibly to the inaccuracy of CBM quantity in coal seam.Here we took the desorption of CBM from coal core under drilling fluid medium as a pressure-swing process,and based on the Langmuir equation and Fick-first law,established the desorption-diffusion model and numerical modeling method of lost gas(including free CBM) calculation in coal core under various drilling fluid mediums through physical simulation test and by considering comprehensively primary factors.The results showed that the physical simulated t-Qt curves can be rightly fitted by the numerical modeling data,which indicated the ultimate desorption quantity from the numerical modeling was adjacent to that from the physical simulation as a whole.It was found that the lost CBM quantity from the modeling method was generally higher than that from the direct method when lost time was relatively long.Thus,we sug-gest that it is necessary to emend the active China national standard through further investigation,since the lost CBM quantity from coal drilling-core was generally underestimated using the method in the current standard.Geoff WANG 2010Science China Earth Sciences2010,53,4:13
17Impact of on-range choice feeding with black soldier fly larvae(Hermetia illucens)on flock performance,egg quality,and range use of free-range laying hens显示文摘Semi-intensive free-range farm systems are common in Australia, and these systems frequently practise on-range feeding. The objective of this study was to investigate the benefit of on-range choice feeding on flock performance, egg quality, and range use of free-range laying hens using black soldier fly larvae(Hermetia illucens, BSF). A total of 160 mature ISA brown laying hens, previously determined to range daily, were allocated to a control group(control) or a treatment group(BSF) with various replicates depending on the parameter investigated. All hens were fed ad libitum indoors with a wheat-soy based diet formulated according to breed requirements. Black soldier fly hens were offered dried BSF larvae ad libitum on the range. Body weight, feed intake, BSF intake, egg production, feed conversion ratio, internal and external egg quality parameters, and individual range use using radio-frequency identification(RFID)technology was evaluated. Black soldier fly hens consumed on average 15 ± 1.7 g BSF larvae/hen per day.There were no differences between BSF and control hens for any of the performance parameters obtained(P > 0.05). Egg weight, shell weight, and shell thickness of eggs from BSF hens were significantly lower(P = 0.003, P = 0.001, and P = 0.004, respectively) than those of eggs from control hens. Egg yolk colour was significantly paler in eggs from BSF hens(P < 0.001). No significant ranging differences between the BSF and control hens were observed(P > 0.05) except for BSF hens showing longer total maximum time for a single visit to the range(P = 0.011). In conclusion, the average intake of BSF larvae indicated a good level of acceptance. Feed formulation should be adjusted for the intake of the choice fed source. The impact of choice-feeding on range use was minor.Isabelle Ruhnke Camille Normant Dana L.M.Campbell Zafar Iqbal Caroline Lee Geoff N.Hinch Julie Roberts 2018Animal Nutrition2018,,4:12
18Psychological controversies in gastroparesis: A systematic review显示文摘AIM To systematically review literature addressing three key psychologically-oriented controversies associated with gastroparesis. METHODS A comprehensive search of Pub Med, CINAHL, and PsycI NFO databases was performed to identify literature addressing the relationship between gastroparesis and psychological factors. Two researchers independently screened all references. Inclusion criteria were: an adult sample of gastroparesis patients, a quantitative methodology, and at least one of the following:(1) evaluation of the prevalence of psychopathology;(2) an outcome measure of anxiety, depression, or quality of life; and(3) evidence of a psychological intervention. Case studies, review articles, and publications in languages other than English were excluded from the current review. RESULTS Prevalence of psychopathology was evaluated by three studies(n = 378), which found that combined anxiety/depression was present in 24% of the gastroparesis cohort, severe anxiety in 12.4%, depression in 21.8%-23%, and somatization in 50%. Level of anxiety and depression was included as an outcome measure in six studies(n = 1408), and while limited research made it difficult to determine the level of anxiety and depression in the cohort, a clear positive relationship with gastroparesis symptom severity was evident.Quality of life was included as an outcome measure in 11 studies(n = 2076), with gastroparesis patients reporting lower quality of life than population norms, and a negative relationship between quality of life and symptom severity. One study assessed the use of a psychological intervention for gastroparesis patients(n = 120) and found that depression and gastric function were improved in patients who received psychological intervention, however the study had considerable methodological limitations. CONCLUSION Gastroparesis is associated with significant psychological distress and poor quality of life. Recommendations for future studies and the development of psychological interventions are provided.Sally Woodhouse Geoff Hebbard Simon R Knowles 2017World Journal of Gastroenterology2017,23,7:12
19监控系统中的多摄像机协同(英文)显示文摘描述了一个用于室内场合对多个目标进行跟踪的分布式监控系统 .该系统由多个廉价的固定镜头的摄像机构成 ,具有多个摄像机处理模块和一个中央模块用于协调摄像机间的跟踪任务 .由于每个运动目标有可能被多个摄像机同时跟踪 ,因此如何选择最合适的摄像机对某一目标跟踪 ,特别是在系统资源紧张时 ,成为一个问题 .提出的新算法能根据目标与摄像机之间的距离并考虑到遮挡的情况 ,把目标分配给相应的摄像机 ,因此在遮挡出现时 ,系统能把遮挡的目标分配给能看见目标并距离最近的那个摄像机 .实验表明该系统能协调好多个摄像机进行目标跟踪 。Nam T. Nguyen Svetha Venkatesh Geoff West Hung H. Bui 2003自动化学报2003,29,3:10
20Hand self-Shiatsu for sleep problems in p ersons with chronic pain: a pilot study显示文摘OBJECTIVE: Difficulty falling asleep(sleep latency) and staying asleep(sleep maintenance) are common problems for persons living with pain. Research demonstrates that sleep problems are, in turn, related to exacerbation of chronic pain. There is a growing body of evidence for a range of pragmatic, non-pharmacological sleep interventions that can potentially be incorporated into pain management programs. This study looks at the outcome of teaching patients with musculoskeletal pain standardized pre-bedtime hand self-Shiatsu(HSS) to reduce sleep latency. METHODS: A case series design, with participants acting as their own controls, was selected to facilitate hypothesis generation for this novel, under-researched intervention. Sleep efficiency, latency and maintenance, sleep beliefs, pain intensity and basic participant demographics were collected at baseline with actigraphy and standardized self-report questionnaires. After one week of baseline data collection, the HSS intervention was taught to participants. Follow-up data were collected at 2 and 8 weeks post-intervention. RESULTS: Data collected at baseline and the two follow-up periods revealed no apparent changes in the objective actigraphy data. However a trend toward improved self-reported sleep latency(time to fall asleep) and sleep duration(time spent asleep) emerged. A number of participants reported they were more concerned with increasing their period of unbroken sleep as opposed to their total sleep time and it is possible that HSS may be useful to be applied during nighttime awakenings as well as before bed. None of the participants reported adverse effects of the intervention. CONCLUSION: These preliminary findings are promising and future studies exploring the mechanism of action and with stronger control of treatment fidelity are indicated.Cary A.Brown Geoff Bostick Leisa Bellmore Dilesha Kumanayaka 2014Journal of Integrative Medicine2014,12,2:9
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