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A platform for initial testing of multiple camouflage patterns

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Defence Technology（防务技术） 2021年第6期17卷 1833-1839页

作者： Joanna R.Hall Olivia Matthews Timothy N.Volonakis eric Liggins Karl P.Lymer Roland Baddeley Innes C.Cuthill Nicholas e.Scott-Samuel School of Psychological Science University of Bristol12a Priory RoadBristolBS81TUUK School of Biological Sciences University of Bristol24 Tyndall AvenueBristolBS81TQUK QinetiQ Ltd Cody Technology ParkFarnboroughHampshireGU140LXUK Defence Science and Technology Lab Physical Sciences GroupPorton DownSalisburyWiltshireSP40JQUK

The human visual system is still an important factor in military warfare;military personnel receive training on effective search strategies,and camouflage that can effectively conceal objects and personnel is a key component of a successful integrated survivability *** methods of camouflage assessment have,amongst others,used psychophysics to generate distinctiveness ***,the population from which the human observers are drawn is often not well defined,or necessarily *** this experiment we designed a new platform for testing multiple patterns based on a camouflaged object detection task,and investigate whether trained military observers perform better than *** use a two-alternative forced choice paradigm,with participants searching images of woodland for a replica military helmet displaying Olive Green,Multi Terrain Pattern,US Marine Pattern or,as a conspicuous control,un Peacekeeper *** data show that there is no difference in detection performance between the two observer groups but that there are clear differences in the effectiveness of the different helmet colour patterns in a temperate woodland *** conclude that when tasks involve very short stimulus presentation times,task-specific training has little effect on the success of target detection and thus this paradigm is particularly suitable for robust estimates of camouflage efficacy.

关键词： Camouflage Detection Military Civilian expertise Training

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多光谱遥感图像模糊均衡方法研究

微计算机信息 2008年第36期24卷 292-294页

作者：林和平艾洪福王静茹靳国超东北师范大学计算机学院吉林长春130117

直接对遥感图像进行判读,是遥感图像解译过程中无法回避的关键环节。如何提高判读的准确性是目前研究的热点问题之一。提出模糊数字图像均衡处理方法,并将其应用于多光谱遥感图像增强处理,在保持原图像信息不丢失的前提之下,大大提高了... 详细信息

直接对遥感图像进行判读,是遥感图像解译过程中无法回避的关键环节。如何提高判读的准确性是目前研究的热点问题之一。提出模糊数字图像均衡处理方法,并将其应用于多光谱遥感图像增强处理,在保持原图像信息不丢失的前提之下,大大提高了图像的可判读性。

关键词：多光谱遥感图像模糊统计数字图像处理

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同质硅分子束外延层的界面缺陷的研究

物理学报 1994年第7期43卷 1129-1136页

作者：陆昉龚大卫孙恒慧复旦大学李政道物理学综合实验室和物理系

对同质硅分子束外延层的界面缺陷进行了测试与分析．对存在高浓度施主型界面缺陷的Ｐ型材料，通过解泊松方程计算了该材料的肖特基势垒的能带图，得到了该缺陷能级上电子的填充与发射随外加反向偏压变化的情况．并分析了用深能级瞬态谱... 详细信息

对同质硅分子束外延层的界面缺陷进行了测试与分析．对存在高浓度施主型界面缺陷的Ｐ型材料，通过解泊松方程计算了该材料的肖特基势垒的能带图，得到了该缺陷能级上电子的填充与发射随外加反向偏压变化的情况．并分析了用深能级瞬态谱（ＤＬＴＳ）对其进行测试所需的条件，以及与常规的ＤＬＴＳ测试结果的不同之处．提出了可同时对该缺陷上电子的发射和俘获过程进行ＤＬＴＳ测量的方法．实验测量结果表明，该高密度的界面缺陷的能级位置位于Ｅ＿ｃ－０．３０ｅＶ．

关键词：硅分子束外延界面缺陷外延层

NOTe SULL'ABISSO DeI MARRONS GLACeS NeLLA GRIGNA SeTTeNTRIONALe

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Natural Disaster Reduction in China 1981年第1期 75-79页

作者： ALBeRTOBUZIO eZIORIGHeTTI e ANTONIO TeSSARO Gruppo Grotte Milano SeM-CAI. Gruppo Grotte Milano SeM-CAI. Gruppo Speleologi Malo (Vicenza).

PReMeSSA L'abisso dei Marrons Glaces (1809 Lo) è stato scoperto durante la campagna del1980 nel Circo di Moncodeno condotta dal Gruppo Grotte Milano in collaborazionecon numerosi altri Gruppi. Il lavoro di esplorazione procede in Moncodeno in modo si-stematico zona per zona in parallelo al rilevamento topografico esterno; questo spiegacome mai non sia stato disceso prima questo abisso caratterizzato da un ingresso di no-tevoli dimensioni.

关键词： Pi La

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预康复护理在腹股沟疝日间手术患者中的应用

中国当代医药 2024年第2期31卷 166-169,174页

作者：何传荣郭慧芳宫颖武春娥贾钰王瑞琪大连医科大学附属第一医院护理部辽宁大连116000

目的探讨术前预康复护理对腹股沟疝日间手术患者术后恢复质量的影响。方法选取2019年1月至2021年4月大连医科大学附属第一医院日间手术中心预约手术的339例腹股沟疝患者为研究对象,按照掷硬币法分为对照组(171例)和观察组(168例)。对照... 详细信息

目的探讨术前预康复护理对腹股沟疝日间手术患者术后恢复质量的影响。方法选取2019年1月至2021年4月大连医科大学附属第一医院日间手术中心预约手术的339例腹股沟疝患者为研究对象,按照掷硬币法分为对照组(171例)和观察组(168例)。对照组予以常规术前护理,观察组采用预康复护理方案,除常规术前护理外,还包括运动预康复、营养支持、心理干预、疼痛及排便管理。比较两组患者的手术取消率、术后6 h的恢复情况、早期并发症发生情况和患者满意度。结果共有321例患者完成全程研究,其中对照组161例,观察组160例。观察组患者满意度、术后恢复质量评分中情感及日常生活活动能力评分及术后6 h数字评定量表(NRS)评分均高于对照组,差异有统计学意义(P0.05)。结论对腹股沟疝日间手术患者术前实施预康复护理方案可有效提高术后恢复质量及患者满意度。

关键词：预康复日间手术腹股沟疝术后恢复质量患者满意度

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核能谱与两类转动惯量的精确表达式

西南师范大学学报(自然科学版) 1988年第4期 40-46页

作者：林辛未孟杰沈远惠西南师范大学物理系西南师范大学计算机科学系

用最小二乘拟合法,将稀土区的能谱实验数据,拟合不同的能谱公式,从而证明e=a〔（1+bI（I+1））1/2-1〕是符合得较好的,本文还推导了与上述能谱相应的两类转动惯量,并以此与实验计算值进行比较,结果仍很满意.

关键词：核能谱惯性矩理论公式

结核分枝杆菌7种检测相关因子的原核表达及鉴定

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中国兽医学报 2018年第7期38卷 1346-1349页

作者：尹云厚梁俊超王雪飞栾文静于录贵州民族大学传媒学院贵州贵阳550000 吉林大学动物医学学院人兽共患病研究所/人兽共患病研究教育部重点实验室吉林长春130062

构建结核分枝杆菌7种蛋白的表达载体，通过原核表达得到5种休眠复苏因子蛋白，分别为（RpfA、RpfB、RpfC、RpfD、Rpfe）及2种潜伏相关抗原蛋白（Rv3407和Rv0569）。首先以结核菌H37Rv全基因纽为模板，利用PCR技术扩增获得结核分枝杆菌的... 详细信息

构建结核分枝杆菌7种蛋白的表达载体，通过原核表达得到5种休眠复苏因子蛋白，分别为（RpfA、RpfB、RpfC、RpfD、Rpfe）及2种潜伏相关抗原蛋白（Rv3407和Rv0569）。首先以结核菌H37Rv全基因纽为模板，利用PCR技术扩增获得结核分枝杆菌的5种休眠复苏因子蛋白和2种潜伏相关抗原蛋白目的基因，克隆入pMD-18T栽体，PCR和酶切鉴定准确后测序，将测序准确的目的片段分别克隆入原核表达载体peT-28a和peT-22b，经PCR和酶切鉴定准确后，转化入大肠杆菌De3表达菌原核表达，通过sDS-PAGe和Western blot试验证实成功表达出7种目的蛋白，其中蛋白RpfA、RpfB、RpfC、RpfD、Rpfe为包涵体，蛋白Rv3407和Rv0569为可溶性蛋白。这7种检测相关因子蛋白的成功表达和鉴定为潜伏结核病新型检测方法建立奠定了基础，也将为进一步研究结核分枝杆菌休眠复苏机制提供依据。

关键词：结核分枝杆菌检测因子 PCR 原核表达鉴定

A Study of Periodic Solution of a Duffing’s equation Using Implicit Function Theorem

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Open Journal of Applied Sciences 2018年第10期8卷 459-464页

作者： e. O. eze J. N. ezeora U. e. Obasi Department of Mathematics Michael Okpara University of Agriculture Umuahia Nigeria Department of Industrial Mathematics and Statistics Ebonyi State University Abakaliki Nigeria

In this paper, the well known implicit function theorem was applied to study existence and uniqueness of periodic solution of Duffing-type equation. un-der appropriate conditions around the origin, a unique periodic s... 详细信息

关键词： Implicit Function Theorem Periodic Solution Duffing equation Banach Spaces

effects of varying Alx moles on structure and luminescence properties of ZnAl_(x)O_(1.5x+1):0.1 mol%Tb^(3+)nanophosphors prepared using citrate sol-gel method

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Journal of Rare earths 2023年第3期41卷 358-364,I0002页

作者： V.M.Maphiri L.T.Melato M.R.Mhlongo T.T.Hlatshwayo T.e.Motaung L.F.Koao S.V.Motloung Department of Physics Sefako Makgatho Health Science UniversityP.O.Box 94Medunsa0204South Africa Department of Mathematics Non Destructive Testing and PhysicsVaal University of TechnologyAndries Potgieter BlvdVanderbijlpark1900South Africa Department of Physics University of PretoriaPretoria0002South Africa Department of Chemistry School of Science in the College of Science Engineering and TechnologyUniversity of South AfricaPreller StreetMuckleneuk RidgeCity of TshwaneP.O Box 392UNISA 0003South Africa Department of Chemistry Sefako Makgatho Health Science UniversityP.O.Box 94Medunsa0204South Africa Department of Physics University of the Free State(Qwaqwa Campus)Private Bag X13Phuthaditjhaba 9866South Africa Department of Chemical and Physical Sciences Walter Sisulu UniversityMthathaSouth Africa

un-doped and ZnAl_(x)O_(1.5x+1):0.1 mol%Tb^(3+)(ZAOT)nano-powders were synthesized via citrate sol-gel *** AIx moles were varied in the range of 0.25≤x≤*** X-ray powder diffraction(XRD)data reveal that for xe prepared samples crystal structure consists of mixed phases of the cubic ZnAl_(2)O_(4) and hexagonal ZnO phases,while for x>1.5 the structure consists of single phase of cubic ZnAl_(2)O_(4).The Raman and Fourier-trans form infrared(FTIR)vibrational spectroscopy show the presence of vibrations emanating ZnAl_(2)O_(4) *** electron microscopy(SeM)and transmission electron microscopy(TeM)show the presence of irregular sphere at x>2.0 attributed to ZnAl_(2)O_(4).The photoluminescence(PL)spectroscopy reveals emissions from both the host and Tb^(3+)*** from Tb^(3+)are observed at 382,414,439,458 nm and 489,545,585,621 nm,which were attributed to the^(5)D_(3)→^(7)F_(6,5,4,2) and ^(5^)D_(4)→^(7)F_(6,5,4,3),*** results confirm that the Tb^(3+)occupation site depends on the Alx *** International Commission on Illumination(CIe)colour chromaticity shows that the emission colour can be tuned from blue to green by varying the AIx moles.

关键词： Citrate sol-gel ZnAl_(2)O_(4)/ZnO Tb^(3+)-doped Al_(x)moles Photoluminescence Rare earths