"Doubled" generalized Landau-Lifshiz hierarchies and special quasigraded Lie algebras

Using special quasigraded Lie algebras we obtain new hierarchies of integrable nonlinear vector equations admitting zero-curvature representations. Among them the most interesting is extension of the generalized Landau-Lifshitz hierarchy which we call "doubled" generalized Landau-Lifshiz hierarchy. This hierarchy can be also interpreted as an anisotropic vector generalization of "modified" Sine-Gordon hierarchy or as a very special vector generalization of so(3) anisotropic chiral field hierarchy.Comment: 16 pages, no figures, submitted to Journal of Physics

Biomanufacturing and testbed development for the continuous production of monoclonal antibodies

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Chemical Sensing as a Utility using Swept-Source Raman Spectroscopy

The integration of chemical sensing into everyday life is a decades-old dream that has so far failed to come to fruition. Many sensor technologies have been proposed and developed, but few can claim to be non-destructive, reagent-free, and suitable for multiple applications while also enabling significant scale-up and remaining cost-effective. This thesis proposes a utility service model for chemical sensing using Swept Source-Raman Spectroscopy (SSRS) that addresses these challenges. First, we introduce the SSRS fiber-probe that allows to measure Raman spectra with a single-point detector and only a few milliwatts of tunable laser excitation. We validate the probe design by monitoring nitrate fertilizer in a hydroponic setup, in environmental water samples, and in growing plants with sensitivity and resolution which are equivalent to benchtop systems. We further demonstrate the scaling up of SSRS into a sensor network by leveraging readily-available data communication optical fiber infrastructure. We showcase a 16-sensor network that uses the laser as a shared resource and develop an engineering-based cost model that supports the scaling up of this network to dozens of sensors deployed over kilometers. Lastly, we monitor metabolites in a therapeutic-producing cell culture, and use linear regression models and a-priori information of our samples to reduce the spectral acquisition time, making this sensor architecture competitive in both performance and cost to existing solutions. These findings represent significant progress towards achieving ubiquitous chemical sensing and facilitating the integration of chemical sensors into everyday life.Ph.D

Economic Research in the Field of Subsidiary Chemistry

The May decision of the CC, CPSU, on the development of the chemical industry signifies a new stage in the development of chemistry in the USSR. It also opens unlimited possibilities for the development of so-called "subsidiary chemistry." Subsidiary chemistry concerns supplement the main chemical industry, widely using wastes and less valuable kinds of raw materials. This makes it possible for the main chemical industry to solve important problems of chemical development and for the subsidiary chemical concerns to satisfy various needs of the population for chemical products. Many of them can greatly increase their production without substantial capital investments.