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| 1 | Shape Control of Doped Semiconductor Nanocrystals (d-Dots)显示文摘Formation of Mn2+-doped ZnSe quantum dots(Mn:ZnSe d-dots)with both branched and nearly spherical shapes has been studied.Structure analysis indicates that the Mn2+dopants were localized in the core of a branched nanocrystal.The growth of branched d-dots,rather than spherical ones,was achieved by simply varying the concentration of two organic additives,fatty acids,and fatty amines.The photoluminescence properties of the branched nanocrystals were explored and compared with those of the nearly spherical particles. | Ranjani Viswanatha David M.Battaglia Mark E.Curtis Tetsuya D.Mishima Matthew B.Johnson Xiaogang Peng | 2008 | Nano Research2008，1，2： | 7 |
| 2 | Resilient Teachers:Resisting Stress and Burnout显示文摘 | Howard S B.Johnson | | 0，，04： | 1 |
| 3 | Persistent disparities in liver transplantation for patients with hepatocellular carcinoma in the United States, 1998 through 2007显示文摘 | Anthony S.Robbins Derrick D.Cox Lynt B.Johnson Elizabeth M.Ward | 2011 | Cancer2011，，19： | 1 |
| 4 | Liver Transplantation in the United States, 1999–2008显示文摘 | P. J.Thuluvath M. K.Guidinger J. J.Fung L. B.Johnson S. C.Rayhill S. J.Pelletier | 2010 | American Journal of Transplantation (p)2010，，4： | 1 |
| 5 | Volcano video data characterized and classified using computer vision and machine learning algorithms显示文摘Video cameras are common at volcano observatories,but their utility is often limited during periods of crisis due to the large data volume from continuous acquisition and time requirements for manual analysis.For cameras to serve as effective monitoring tools,video frames must be synthesized into relevant time series signals and further analyzed to classify and characterize observable activity.In this study,we use computer vision and machine learning algorithms to identify periods of volcanic activity and quantify plume rise velocities from video observations.Data were collected at Villarrica Volcano,Chile from two visible band cameras located^17 km from the vent that recorded at 0.1 and 30 frames per second between February and April 2015.Over these two months,Villarrica exhibited a diverse range of eruptive activity,including a paroxysmal eruption on 3 March.Prior to and after the eruption,activity included nighttime incandescence,dark and light emissions,inactivity,and periods of cloud cover.We quantify the color and spatial extent of plume emissions using a blob detection algorithm,whose outputs are fed into a trained artificial neural network that categorizes the observable activity into five classes.Activity shifts from primarily nighttime incandescence to ash emissions following the 3 March paroxysm,which likely relates to the reemergence of the buried lava lake.Time periods exhibiting plume emissions are further analyzed using a row and column projection algorithm that identifies plume onsets and calculates apparent plume horizontal and vertical rise velocities.Plume onsets are episodic,occurring with an average period of^50 s and suggests a puffing style of degassing,which is commonly observed at Villarrica.However,the lack of clear acoustic transients in the accompanying infrasound record suggests puffing may be controlled by atmospheric effects rather than a degassing regime at the vent.Methods presented here offer a generalized toolset for volcano monitors to classify and track emission statistics at a variety of volcanoes to better monitor periods of unrest and ultimately forecast major eruptions. | Alex J.C.Witsil Jeffrey B.Johnson | 2020 | Geoscience Frontiers2020，11，5： | 1 |
| 6 | Exploring DFT+U parameter space with a Bayesian calibration assisted by Markov chain Monte Carlo sampling显示文摘The density-functional theory is widely used to predict the physical properties of materials.However,it usually fails for strongly correlated materials.A popular solution is to use the Hubbard correction to treat strongly correlated electronic states.Unfortunately,the values of the Hubbard U and J parameters are initially unknown,and they can vary from one material to another.In this semi-empirical study,we explore the U and J parameter space of a group of iron-based compounds to simultaneously improve the prediction of physical properties(volume,magnetic moment,and bandgap).We used a Bayesian calibration assisted by Markov chain Monte Carlo sampling for three different exchange-correlation functionals(LDA,PBE,and PBEsol).We found that LDA requires the largest U correction.PBE has the smallest standard deviation and its U and J parameters are the most transferable to other iron-based compounds.Lastly,PBE predicts lattice parameters reasonably well without the Hubbard correction. | Pedram Tavadze Reese Boucher Guillermo Avendaño-Franco Keenan X.Kocan Sobhit Singh Viviana Dovale-Farelo Wilfredo Ibarra-Hernández Matthew B.Johnson David S.Mebane Aldo H.Romero | 2021 | npj Computational Materials2021，，1： | 0 |
| 7 | 反刍动物脂分析的改进方法显示文摘反刍动物储存的类脂物是含有部份的饱和脂肪酸和不饱和脂肪酸甘油酯的复杂混合物。饱和脂肪酸由直链和甲基支链组成;不饱和脂肪酸可能是异构的和反式异构的及那些带有支链的、甚至标有羧基基团碳原子位置的脂肪酸,不饱和脂肪酸的几何异构物和位置异构物通常也存在。在油脂样品中,n-饱和、支链的和不饱和脂肪酸组份的相对数量取决于动物的种类、饮食以及从动物身上取样品的位置。从反刍动物类脂物中获得的脂肪酸甲酯详细组份的分析是很费时的。 | Cecil B.Johnson 袁美芬 | 1990 | 日用化学工业译丛1990，，6： | 0 |
| 8 | 人源性流行性出血热病毒的形态特征显示文摘本文报道流行性出血热病毒(汉坦病毒)H-114株的电镜形态。发现形态发生以内质网膜和胞浆膜芽生为主。病毒颗粒为圆形或卵圆形。具有双层膜结构,大小为90~120nm。提出了汉坦病毒形态发生的理论观点。 | 杨占秋 向近敏 肖书渊 张天明 郑志明 P.P.Liberski B.Johnson J.C.Gibbs.gr | 1991 | 病毒学杂志1991，6，2： | 0 |
| 9 | Multistage interband cascade photovoltaic devices with a bandgap of 0.23 eV operating above room temperature显示文摘Interband cascade(IC)photovoltaic(PV)device structures,consisting of multiple discrete InAs/GaSb superlattice absorbers sandwiched between electron and hole barriers,were grown by molecular beam epitaxy.Details of the molecular beam epitaxy growth and material characterization of the structures are presented.The discrete absorber architecture enables certain advantages,such as high open-circuit voltage,high collection efficiency,high operating temperature,and smooth integration of cascade stages with different bandgaps.The two-and three-stage ICPV devices presented in this article operate at room temperature with substantial open-circuit voltages at a cutoff wavelength of 5.3 lm(corresponding to a bandgap of 0.23 eV),the longest ever reported for room temperature PV devices.The device characteristics indicate a high level of current matching and demonstrate the advantages of the interband cascade approach in thermophotovoltaic cell design. | Hao Ye Hossein Lotfi Lu Li Robert T.Hinkey Rui Q.Yang Lin Lei Joel C.Keay Matthew B.Johnson Tetsuya D.Mishima Michael B.Santos | 2014 | Chinese Science Bulletin2014，59，10： | 0 |
| 10 | 乳清制品在小食品中的应用显示文摘在许多小食品如干酪卷、油炸马铃薯片等配方中,皆采用了乳配料,特别是乳清制品。由于乳清制品能增强小食品的风味和外观,故扮演着调味的角色。 除此之外,乳清蛋白富含支链氨基酸,被誉为高品质蛋白,乳清制品也是高生物活性乳钙、各种矿物质和维生素的来源;乳清浓缩蛋白和乳清分离蛋白是健康型和运动型小食品的首选配料。 | B.Johnson | 2002 | 中国食品工业2002，，2： | 0 |
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