检索结果-南通市图书馆

DISTINCTIVE BURNING RATE OF DIESEL LIGHT OIL AND LIGHT CYCLE OIL DROPLETS

The 5th International Vacuum Electron Sources Conference(IVESC2004)

作者： K.miya A.Sinsarp m.sasaki S.Yamamoto Institute of Applied Physics The University of Tsukuba1-1-1 TennoudaiTsukubaIbaraki 305-8573 JAPAN National Institute of Advanced Industrial Science and Technology AIST 21-1-1 Umezono TsukubaIbaraki 305-8568JAPAN

＜正＞INTRODUCTION Work function is crucially important for the characteristics of electron emission from solid surfaces. For most of elemental metals, work function is well established experimentally and theoreticall... 详细信息

关键词： microscopy Tunneling Surface cleaning Annealing Platinum alloys Histograms Artificial intelligence Frequency modulation Amplitude modulation Cutoff frequency

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

DISTINCTIVE BURNING RATE OF DIESEL LIGHT OIL AND LIGHT CYCLE...

使用数字水模评估CT和mRI灌注分析软件的准确性和可靠性

CSPE-JSmE-ASmE International Conference on Power Engineering

作者： G.Xu m.Ikegami S.Honma m.sasaki K.Ikeda H.Nagaishi Y.Takeshita AIST Hokkaido National Instite of Advanced Industrial Science and Technology Japan Space Utilization Promotion Center

This study is devoted to testing the single droplet combustion of a diesel light oil (LO) and a light cycle oil (LCO). The testswere carried out in an atmospheric hot chamber preset at a temperature of 1173 K. A quartz fiber was used to suspend the oildroplet. The resultS showed that the LCO droplet had higher soot yield, whereas both the LCO and LO droplets did not haveobvious coke formation. microexplosions were obvious during the combustion but the LO droplets were more apt tomicroexplode. The ignition delay was relatively shorter for the LCO droplet but the flame 1ifetime and droplet lifetime werenearly the same for the droplets of both the oils (flame lifetime being the time between ignition and extinction, and dropletlifetime being the sum of ignition delay and flame lifetime). The disruptive burning more or less complicated the time-seriesvariations of droplet size (d). A linear region, however, can still be identified on the curve dvs. t to show the overallchanges of droplet size with burning time (t). This allowcd an apparent burning rate constant to be defined according to thed-law. The burning rate constant varied with the initial droplet diameter (d), which caused the relative droplet size, (d/d),to be normalized by the relative time t/d (n=1.l0). Further analysis showed that this normalization Tesulted from therespective unification of the unsteady and quasi-steady burning phases of different droplets. These results were alsocorroborated by burning an oil blend of LO and LCO at volume fractions of 50% in the same conditions.

关键词： Droplet combustion Ignition Diesel engine Diesel light oil (LO) Light cycle oil (LCO) multi-component fuel.

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

国际医学放射学杂志 2013年第3期 278-279页

作者： K.Kudo S.Christensen m.sasaki L.Ostergaard H.Shirato K.Ogasawara 施益洁 Division of Ultra-High Field mRI and Department of Radiology Department of NeurosurgeryIwate Medical University

目的以广泛接受的示踪动力学理论为基础,为CT灌注和mR灌注加权成像设计一个数字水模数据集。在这个数据集里,脑血流量(CBF)、脑血容量(CBV)、平均通过时间(mTT)和示踪剂到达延迟时间的真值是已知的,并使用这个水模评估后处理程序的准确... 详细信息

目的以广泛接受的示踪动力学理论为基础,为CT灌注和mR灌注加权成像设计一个数字水模数据集。在这个数据集里,脑血流量(CBF)、脑血容量(CBV)、平均通过时间(mTT)和示踪剂到达延迟时间的真值是已知的,并使用这个水模评估后处理程序的准确性和可靠性。材料与方法数字水模数据集通过生成浓度-时间曲线,反映了CBF(2.5～87.5mL/(100g·min)、CBV(1.0～5.0mL/100g)、mTT(3.4～24s)和示踪延迟(0～3.0s)的真值。将这些曲线嵌入人脑影像中,然后将这些数据分别用CT和mR的13种算法进行分析,其中包括5种商业程序和5种科研程序。使用Pearson相关系数(r)评价真值的准确性。还评价了示踪延迟、mTT或CBV依赖的误差以及时间与最大残基函数(Tmax)之间的相关性。结果在CT灌注中,CBV显示良好的可重复性(r>0.9,在12种算法中),但CBF和mTT的可重复性一般(r>0.9,分别在7种和4种算法中)。在mR灌注成像中,一半的商业程序和所有的科研程序算法表现出了对所有参数的良好相关性(r>0.9)。大部分算法有延迟依赖的误差,尤其是商业软件,以及CBF或mTT计算的CBV依赖的误差和CBV计算的mTT依赖的误差。除一种算法外,Tmax相关性良好。结论数字水模易于评估CT和mR灌注分析软件的准确性和可靠性。所有的商业软件都有延迟诱导的错误和(或)与真值的相关性不足,而在mRI中,科研软件与真值间表现出良好的相关性。

关键词：水模 mRI 可重复性 CBV 分析软件 CT

CT灌注分析在反卷积算法中示踪剂延时诱导效应的差异:数字模型的定量评价

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

国际医学放射学杂志 2009年第3期 293-293页

作者： K.Kudo m.sasaki K.Ogasawara S.Terae S.Ehara H.Shirato 宋建军 Advanced medical Research Center Iwate Medical University19-1 UchimaruMorioka 020-8505Japan

研究获机构审查委员会批准,并得到病人知情同意。其目的是使用实际来源的数据创建的数字模型来评价CT灌注影像上在不同的反卷积算法下示踪剂延时诱导效应的差异。对3种方法的奇异值分解(singular value decompo-sition,SVD)进行了评价... 详细信息

研究获机构审查委员会批准,并得到病人知情同意。其目的是使用实际来源的数据创建的数字模型来评价CT灌注影像上在不同的反卷积算法下示踪剂延时诱导效应的差异。对3种方法的奇异值分解(singular value decompo-sition,SVD)进行了评价。对于标准的奇异值分解(sSVD),在脑血流量和平均通过时间上延迟诱导有显著误差。

关键词：诱导效应电子效应卷积算法示踪剂示踪物奇异值分解数字模型差异 CT

磁共振波谱温度测量预测颈动脉内膜剥脱术后的大脑高灌注

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

国际医学放射学杂志 2010年第6期 568-568页

作者： T.murakami K.Ogasawara Y.Yoshioka D.Ishigaki m.sasaki K.Kudo 龙淼淼 Department of Neurosurgery Iwate Medical University.19-1 UchimaruMorioka 020-8505Japan

目的研究术前采用磁共振波谱(mRS)温度测量能否检出颈动脉内膜剥脱术后大脑高灌注的高危人群。资料与方法研究经医院伦理委员会批准,受试者签署知情同意

关键词：颈动脉内膜剥脱高危人群高灌注磁共振波谱大脑温度测量热工测量

运用不同商业软件得到CT灌注图像的差异:使用急性卒中病人的同源数据的定量分析

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

国际医学放射学杂志 2010年第2期 173-173页

作者： K.S.m.Kudo m.sasaki K.Yamada S.momoshima H.Utsunomiya H.Shirato 谢丽璇 Advanced medical Research Center Iwate Medical University 19-1 Uchimaru Morioka 020-8505Japan

目的使用不同CT制造商提供的商业化软件对卒中病人同源数据的CT灌注成像结果进行定性及定量分析,以检测其差异性。材料与方法本研究由机构审查委员会批准并经病人知

关键词：卒中病人同源数据平均脑血流量定量分析脑血容量差异商业软件图像 CT

mapping of Quantitative Trait Loci Affecting Eggshell Quality in an F_2 Population Derived from Strong and Weak Eggshell Lines of the White Leghorn Chicken Breed

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Agricultural Sciences in China 2010年第4期9卷 593-597页

作者： YANG De-ji O sasaki m minezawa K Nirasawa H Takahashi Genebank National Institute of Agrobiological Sciences Tsukuba 305-8602 Japan Animal Breeding and Reproduction Research Team National Institute of Livestock and Grassland Science Tsukuba 305-0901 Japan College of Veterinary Science Nanjing Agricultural University Nanjing 210095 P.R.China

Broken and cracked eggshells cause major economic losses to the egg production industry. An F2 population of 262 hens obtained by crossing a strong egg shell line with a weak egg shell line of the White Leghorn breed was used for detecting the quantitative trait loci （QTL） affecting eggshell quality. The 2 lines were developed from the same founder population by two-way selection for egg shell strength with nondestructive deformation. Of the 1 014 microsatellite markers tested, 35 were mapped on 10 autosomal linkage groups. There was no informative marker on chromosome Z. The QTLs associated with 7 traits, i.e., body weight, short length of egg, long length of egg, eggshell strength, eggshell thickness （EST）, eggshell weight （ESW）, and egg weight （EW）, were identified. Highly significant （P〈0.01） QTLs associated with EST and ESW and a significant （P〈 0.05） QTL associated with EW were mapped to a region flanking ABR0545 and ABR0362 on chromosome 9. These QTLs are good candidates to be employed in the development of strategies for reducing the number of broken and cracked eggs in commercial layer houses by employing marker assisted selection.

关键词： chicken White Leghorn quantitative trait loci eggshell quality

维普期刊数据库

Nanotrains and Self-Assembled Two-Dimensional Arrays Built from Carboranes Linked by Hydrogen Bonding of Dipyridones

在线全文

学校读者我要写书评

暂无评论

Nano Research 2008年第5期1卷 412-419页

作者： Takashi sasaki Jason m.Guerrero Ashley D.Leonard James m.Tour Department of Chemistry Department of Mechanical Engineering and Materials ScienceRice UniversityMS 2226100 Main St.HoustonTexas 77005USA

The strong hydrogen bonding ability of 2-pyridones were exploited to build nanotrains on *** wheels on axles difunctionalized with 2-pyridone hydrogen bonding units were synthesized and displayed spontaneous formation of linear nanotrains by self-assembly on SiO_(2)or mica *** using atomic force microscopy confi rmed linear formations with lengths up to 5μm and heights within the range of the molecular height of the carborance-tipped axles.

关键词： Nanovehicles nanotrains 2-pyridone hydrogen bonding self-assembly