http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Inverse Problems in Aerodynamics, Heat Transfer, Elasticity and Materials Design
Dulikravich, George S.,Dennis, Brian H.,Baker, Daniel P.,Kennon, Stephen R.,Orlande, Helcio R.B.,Colaco, Marcelo J. The Korean Society for Aeronautical and Space Scie 2012 International Journal of Aeronautical and Space Sc Vol.13 No.4
A number of existing and emerging concepts for formulating solution algorithms applicable to multidisciplinary inverse problems involving aerodynamics, heat conduction, elasticity, and material properties of arbitrary three-dimensional objects are briefly surveyed. Certain unique features of these algorithms and their advantages are sketched for use with boundary element and finite element methods.
Inverse Problems in Aerodynamics, Heat Transfer, Elasticity and Materials Design
George S. Dulikravich,Brian H. Dennis,Daniel P. Baker,Stephen R. Kennon,Helcio R. B. Orlande,Marcelo J. Colaco 한국항공우주학회 2012 International Journal of Aeronautical and Space Sc Vol.13 No.4
A number of existing and emerging concepts for formulating solution algorithms applicable to multidisciplinary inverse problems involving aerodynamics, heat conduction, elasticity, and material properties of arbitrary three-dimensional objects are briefly surveyed. Certain unique features of these algorithms and their advantages are sketched for use with boundary element and finite element methods.
Room-temperature ferroelectricity in supramolecular networks of charge-transfer complexes
Tayi, Alok S.,Shveyd, Alexander K.,Sue, Andrew C.-H.,Szarko, Jodi M.,Rolczynski, Brian S.,Cao, Dennis,Kennedy, T. Jackson,Sarjeant, Amy A.,Stern, Charlotte L.,Paxton, Walter F.,Wu, Wei,Dey, Sanjeev K. Nature Publishing Group, a division of Macmillan P 2012 Nature Vol.488 No.7412
Materials exhibiting a spontaneous electrical polarization that can be switched easily between antiparallel orientations are of potential value for sensors, photonics and energy-efficient memories. In this context, organic ferroelectrics are of particular interest because they promise to be lightweight, inexpensive and easily processed into devices. A recently identified family of organic ferroelectric structures is based on intermolecular charge transfer, where donor and acceptor molecules co-crystallize in an alternating fashion known as a mixed stack: in the crystalline lattice, a collective transfer of electrons from donor to acceptor molecules results in the formation of dipoles that can be realigned by an external field as molecules switch partners in the mixed stack. Although mixed stacks have been investigated extensively, only three systems are known to show ferroelectric switching, all below 71 kelvin. Here we describe supramolecular charge-transfer networks that undergo ferroelectric polarization switching with a ferroelectric Curie temperature above room temperature. These polar and switchable systems utilize a structural synergy between a hydrogen-bonded network and charge-transfer complexation of donor and acceptor molecules in a mixed stack. This supramolecular motif could help guide the development of other functional organic systems that can switch polarization under the influence of electric fields at ambient temperatures.