Now showing items 228-247 of 43875

  • A Dual PET/MR Imaging Nanoprobe: 124I Labeled Gd3N@C80 

    Luo, Jianqiao; Wilson, John D.; Zhang, Jianyuan; Hirsch, Jerry I.; Dorn, Harry C.; Fatouros, Panos P.; Shultz, Michael D. (MDPI, 2012-05-10)
    The current report describes the development of a dual modality tomographic agent for both positron emission tomography and magnetic resonance imaging (PET/MRI). The dual-modality agent in this study was based on a 124I ...
  • A finite element splitting extrapolation for second order hyperbolic equations 

    He, X. M.; Lu, T. (Siam Publications, 2009)
    Splitting extrapolation is an efficient technique for solving large scale scientific and engineering problems in parallel. This article discusses a finite element splitting extrapolation for second order hyperbolic equations ...
  • A general convergence analysis of some Newton-type methods for nonlinear inverse problems 

    Jin, Q. N. (Siam Publications, 2011)
    We consider the methods x(n+1)(delta) - x(n)(delta) - g(alpha n) (F'(x(n)(delta))* F'(x(n)(delta)))F'(x(n)(delta))*(F(x(n)(delta)) - y(delta)) for solving nonlinear ill-posed inverse problems F(x) = y using the only available ...
  • A generalized rule for large piezoelectric response in perovskite oxide ceramics and its application for design of lead-free compositions 

    Ahn, Cheol-Woo; Maurya, Deepam; Park, Chee-Sung; Nahm, Sahn; Priya, Shashank (American Institute of Physics, 2009-06-01)
    We present a general rule for the perovskite oxide ceramics: "A large piezoelectric constant in ABO(3) perovskite ceramics can be obtained by tuning the weight ratio of A and B sites, WA/WB or WB/WA, to 3. Piezoelectric ...
  • A Glossary of Water-Related Terms 

    Benham, Brian Leslie, 1960- (Virginia Cooperative Extension, 2009-05-01)
    A list with definitions to provide the reader with a working knowledge of terms that apply to Virginia's water resources.
  • A Guide to Successful Pruning. Decidous Tree Pruning Calendar 

    Appleton, Bonnie Lee, 1948-2012; French, Sue (Sue C.) (Virginia Cooperative Extension, 2009-05-01)
    This calendar is a guide to the proper time of the year to prune 45 deciduous trees common in Virginia.
  • A guide to successful pruning. Deciduous tree pruning calendar 

    Appleton, Bonnie Lee, 1948-2012; French, Sue (Sue C.) (Virginia Cooperative Extension Service, 1998)
    A calendar indicating best times during the year to prune various deciduous trees.
  • A guide to successful pruning. Evergreen tree pruning calendar 

    Appleton, Bonnie Lee, 1948-2012; French, Sue (Sue C.) (Virginia Cooperative Extension, 1998)
    A calendar indicating best times during the year to prune various evergreen trees.
  • A Guide to Successful Pruning. Evergreen Tree Pruning Calendar 

    Appleton, Bonnie Lee, 1948-2012; French, Sue (Sue C.) (Virginia Cooperative Extension, 2009-05-01)
    This calendar is a guide to the proper time of the year to prune 13 evergreen trees common in Virginia.
  • A Guide to Successful Pruning. Pruning Basics and Tools 

    French, Sue (Sue C.); Appleton, Bonnie Lee, 1948-2012 (Virginia Cooperative Extension, 2009-05-01)
    This guide reviews what pruning is and why it is important and what tools are necessary for efficient pruning.
  • A guide to successful pruning. Pruning basics and tools 

    French, Sue (Sue C.); Appleton, Bonnie Lee, 1948-2012 (Virginia Cooperative Extension, 1994)
    Discusses reasons for pruning and various pruning tools.
  • A guide to successful pruning. Pruning deciduous trees 

    French, Sue (Sue C.); Appleton, Bonnie Lee, 1948-2012 (Virginia Cooperative Extension, 1994)
    Describes proper pruning techniques for deciduous trees.
  • A Guide to Successful Pruning. Pruning Deciduous Trees 

    Appleton, Bonnie Lee, 1948-2012; French, Sue (Sue C.) (Virginia Cooperative Extension, 2009-05-01)
    Trees that shed their leaves annually are classified as deciduous. Before getting out your hand pruners, learn some basics about the anatomy, or supporting framework, of a deciduous tree.
  • A Guide to Successful Pruning. Pruning Evergreen Trees 

    French, Sue (Sue C.); Appleton, Bonnie Lee, 1948-2012 (Virginia Cooperative Extension, 2009-05-01)
    Evergreen trees have leaves that persist year round, and include most�conifers�and�some broad-leaved trees. Evergreen trees generally need less pruning than deciduous trees. This publication reviews the anatomy of evergreens, ...
  • A Guide to Successful Pruning. Pruning Shrubs 

    French, Sue (Sue C.); Appleton, Bonnie Lee, 1948-2012 (Virginia Cooperative Extension, 2009-05-01)
    Understanding the�natural habit�or�shape�of shrubs will help you determine how to prune them. This publication explores how and when to prune, maintenance and rejuvenation pruning, and the growth habit of shrubs.
  • A guide to successful pruning. Pruning shrubs 

    French, Sue (Sue C.); Appleton, Bonnie Lee, 1948-2012 (Virginia Cooperative Extension, 1994)
    Discusses different pruning techniques for shrubs.
  • A Guide to Successful Pruning. Shrub Pruning Calendar 

    Appleton, Bonnie Lee, 1948-2012; French, Sue (Sue C.) (Virginia Cooperative Extension, 2009-05-01)
    This calendar is a guide to the proper time of the year to prune many types of shrubs common in Virginia.
  • A guide to successful pruning. Stop topping trees! 

    French, Sue (Sue C.); Appleton, Bonnie Lee, 1948-2012 (Virginia Cooperative Extension, 1994)
    Explains how topping damages trees and offers alternative pruning methods.
  • A Guide to Successful Pruning. Stop Topping Trees! 

    French, Sue (Sue C.); Appleton, Bonnie Lee, 1948-2012 (Virginia Cooperative Extension, 2009-05-01)
    Topping occurs when the vertical stem and upper primary limbs on mature trees are cut back to stubs at uniform height. A wiser alternative to topping is careful selection and training of your young trees. Avoid topping ...
  • A high-field adiabatic fast passage ultracold neutron spin flipper for the UCNA experiment 

    Holley, A. T.; Broussard, L. J.; Davis, J. L.; Hickerson, K.; Ito, T. M.; Liu, C. Y.; Lyles, J. T. M.; Makela, M.; Mammei, R. R.; Mendenhall, M. P.; Morris, C. L.; Mortensen, R.; Pattie, R. W.; Rios, R.; Saunders, A.; Young, A. R. (AIP Publishing, 2012-07)
    The UCNA collaboration is making a precision measurement of the beta asymmetry (A) in free neutron decay using polarized ultracold neutrons (UCN). A critical component of this experiment is an adiabatic fast passage neutron ...