The Parameter Variation Problem in State Feedback Control Systems

Coordinated Science Laboratory was formerly known as Control Systems LaboratoryContract DA-36-039-AMC-02208(E

Criteria for System Sensitivity to Parameter Variations

Coordinated Science Laboratory was formerly known as Control Systems LaboratoryJoint Services Electronic Programs / DA 28 043 AMC 00073(E)Air Force Office of Scientific Research / AF 49(638)-138

A New Approach to the Sensitivity Problem in Multivariable Feedback System Design

Coordinated Science Laboratory was formerly known as Control Systems LaboratoryDepartment of Army / DA-36-039-TR US AMC 02208(E

The Sensitivity of General Multivariable Feedback Systems

Coordinated Science Laboratory was formerly known as Control Systems LaboratoryDepartment of the Army / DA-28-043-AMC-00073(E) aDepartment of the Air Force / AF 49(638) - 138

A New Approach to the Sensitivity Problem in Multivariable Feedback System Design

Coordinated Science Laboratory was formerly known as Control Systems LaboratoryDepartment of Army / DA-36-039-TR US AMC 02208(E

Parametric Expansion of Optimum Controls

Coordinated Science Laboratory was formerly known as Control Systems LaboratoryJoint Services Electronics Program / DAAB 07-67-C-0199Air Force AF-AFOSR 68-167

Control Strategies for Complex Systems for Use in Aerospace Avionics

Coordinated Science Laboratory was formerly known as Control Systems LaboratoryAir Force Office of Scientific Research (AFSC) / AF-AFOSR 78-363

Chained Aggregation, Singular Perturbations and Leader-Follower Strategies

Coordinated Science Laboratory was formerly known as Control Systems LaboratoryEnergy Research and Development Administration / Contract E(49-18)-208

Theory of spin wave excitations of metallic A-type antiferromagnetic manganites

The spin dynamic of the metallic A-type antiferromagnetic manganites is studied. An effective nearest-neighbour Heisenberg spin wave dispersion is derived from the double exchange model taking into account the superexchange interaction between the core spins. The result of inelastic neutron scattering experiment on ${Nd}_{0.45}{Sr}_{0.55}{Mn} {O}_{3}$ is qualitatively reproduced. Comparing theory with experimental data two main parameters of the model: nearest-neighbour electron transfer amplitude and superexchange coupling between the core spins are estimated.Comment: to appear in Phys. Rev.

Pause Point Spectra in DNA Constant-Force Unzipping

Under constant applied force, the separation of double-stranded DNA into two single strands is known to proceed through a series of pauses and jumps. Given experimental traces of constant-force unzipping, we present a method whereby the locations of pause points can be extracted in the form of a pause point spectrum. A simple theoretical model of DNA constant-force unzipping is demonstrated to produce good agreement with the experimental pause point spectrum of lambda phage DNA. The locations of peaks in the experimental and theoretical pause point spectra are found to be nearly coincident below 6000 bp. The model only requires the sequence, temperature and a set of empirical base pair binding and stacking energy parameters, and the good agreement with experiment suggests that pause points are primarily determined by the DNA sequence. The model is also used to predict pause point spectra for the BacterioPhage PhiX174 genome. The algorithm for extracting the pause point spectrum might also be useful for studying related systems which exhibit pausing behavior such as molecular motors.Comment: 15 pages, 12 figure