[ { "id": "authors:m2q7q-9jx93", "collection": "authors", "collection_id": "m2q7q-9jx93", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20201127-170855399", "type": "article", "title": "Multiscale Digital Porous Rock Reconstruction Using Template Matching", "author": [ { "family_name": "Lin", "given_name": "W.", "orcid": "0000-0002-8643-594X", "clpid": "Lin-Wei" }, { "family_name": "Li", "given_name": "X.", "clpid": "Li-X" }, { "family_name": "Yang", "given_name": "Z.", "clpid": "Yang-Z" }, { "family_name": "Manga", "given_name": "M.", "orcid": "0000-0003-3286-4682", "clpid": "Manga-Michael" }, { "family_name": "Fu", "given_name": "X.", "orcid": "0000-0001-7120-704X", "clpid": "Fu-Xiaojing-Ruby" }, { "family_name": "Xiong", "given_name": "S.", "clpid": "Xiong-S" }, { "family_name": "Gong", "given_name": "A.", "clpid": "Gong-A" }, { "family_name": "Chen", "given_name": "G.", "clpid": "Chen-G" }, { "family_name": "Li", "given_name": "H.", "clpid": "Li-H" }, { "family_name": "Pei", "given_name": "L.", "clpid": "Pei-L" }, { "family_name": "Li", "given_name": "S.", "clpid": "Li-S" }, { "family_name": "Zhao", "given_name": "X.", "clpid": "Zhao-X" }, { "family_name": "Wang", "given_name": "X.", "clpid": "Wang-X" } ], "abstract": "Rocks are heterogeneous multiscale porous media: two rock samples with identical bulk properties can vary widely in microstructure. The advent of digital rock technology and modern 3\u2010D printing provides new opportunities to replicate rocks. However, the inherent trade\u2010off between imaging resolution and sample size limits the scales over which microstructure and macrostructure can be identified and related to each other. Here, we develop a multiscale digital rock construction strategy by combining X\u2010ray computed microtomography and focused\u2010ion beam (FIB)\u2010scanning electron microscope (SEM) images, and we apply the technique to a tight sandstone. The computed tomography (CT) scanning images characterize macroscale pore structures, while the FIB\u2010SEM images capture microscale pore textures. The FIB\u2010SEM images are then coupled to CT images via a template\u2010matching algorithm and superposition. Bulk properties, including porosity and pore and throat size distribution, can be recovered with this approach. Permeability prediction with a pore network model for the largest connected pore network are 3 orders and 1 order of magnitude greater than the bulk rock measured value using the CT\u2010only and the SEM\u2010CT coupled images, respectively.", "doi": "10.1029/2019wr025219", "issn": "0043-1397", "publisher": "American Geophysical Union", "publication": "Water Resources Research", "publication_date": "2019-08", "series_number": "8", "volume": "55", "issue": "8", "pages": "6911-6922" }, { "id": "authors:h3mpr-1js96", "collection": "authors", "collection_id": "h3mpr-1js96", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20120113-095151988", "type": "article", "title": "Quasiballistic heat transfer studied using the frequency-dependent Boltzmann transport equation", "author": [ { "family_name": "Minnich", "given_name": "A. J.", "orcid": "0000-0002-9671-9540", "clpid": "Minnich-A-J" }, { "family_name": "Chen", "given_name": "G.", "clpid": "Chen-G" }, { "family_name": "Mansoor", "given_name": "S.", "clpid": "Mansoor-S" }, { "family_name": "Yilbas", "given_name": "B. S.", "clpid": "Yilbas-B-S" } ], "abstract": "Quasiballistic heat transfer occurs when there is a temperature gradient over length scales comparable to phonon mean free paths (MFPs). This regime has been of interest recently because observation of quasiballistic transport can lead to useful information about phonon MFPs, knowledge of which is essential for engineering nanoscale thermal effects. Here, we use the Boltzmann transport equation (BTE) to understand how observations of quasiballistic transport can yield information about MFPs. We solve the transient, one-dimensional, frequency-dependent BTE for a double-layer structure of a metal film on a substrate, the same geometry that is used in transient thermoreflectance experiments, using a frequency-dependent interface condition. Our results indicate that phonons with MFPs longer than the thermal penetration depth do not contribute to the measured thermal conductivity, providing a means to probe the MFP distribution. We discuss discrepancies between our simulation and experimental observations which offer opportunities for future investigation.", "doi": "10.1103/PhysRevB.84.235207", "issn": "1098-0121", "publisher": "American Physical Society", "publication": "Physical Review B", "publication_date": "2011-12-15", "series_number": "23", "volume": "84", "issue": "23", "pages": "Art. No. 235207" }, { "id": "authors:qtrtj-94678", "collection": "authors", "collection_id": "qtrtj-94678", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20111004-121520377", "type": "article", "title": "Quantum magnetism with polar alkali-metal dimers", "author": [ { "family_name": "Gorshkov", "given_name": "Alexey V.", "clpid": "Gorshkov-A-V" }, { "family_name": "Manmana", "given_name": "Salvatore R.", "clpid": "Manmana-S-R" }, { "family_name": "Chen", "given_name": "Gang", "clpid": "Chen-G" }, { "family_name": "Demler", "given_name": "Eugene", "clpid": "Demler-E" }, { "family_name": "Lukin", "given_name": "Mikhail D.", "orcid": "0000-0002-8658-1007", "clpid": "Lukin-M-D" }, { "family_name": "Rey", "given_name": "Ana Maria", "clpid": "Rey-A-M" } ], "abstract": "We show that dipolar interactions between ultracold polar alkali-metal dimers in optical lattices can be used to realize a highly tunable generalization of the t-J model, which we refer to as the t-J-V-W model. The model features long-range spin-spin interactions J_z and J_\u22a5 of XXZ type, long-range density-density interaction V, and long-range density-spin interaction W, all of which can be controlled in both magnitude and sign independently of each other and of the tunneling t. The \"spin\" is encoded in the rotational degree of freedom of the molecules, while the interactions are controlled by applied static electric and continuous-wave microwave fields. Furthermore, we show that nuclear spins of the molecules can be used to implement an additional (orbital) degree of freedom that is coupled to the original rotational degree of freedom in a tunable way. The presented system is expected to exhibit exotic physics and to provide insights into strongly correlated phenomena in condensed-matter systems. Realistic experimental imperfections are discussed.", "doi": "10.1103/PhysRevA.84.033619", "issn": "1050-2947", "publisher": "American Physical Society", "publication": "Physical Review A", "publication_date": "2011-09-15", "series_number": "3", "volume": "84", "issue": "3", "pages": "Art. No. 033619" }, { "id": "authors:vmgdz-anp44", "collection": "authors", "collection_id": "vmgdz-anp44", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20110929-105922346", "type": "article", "title": "Tunable Superfluidity and Quantum Magnetism with Ultracold Polar Molecules", "author": [ { "family_name": "Gorshkov", "given_name": "Alexey V.", "clpid": "Gorshkov-A-V" }, { "family_name": "Manmana", "given_name": "Salvatore R.", "clpid": "Manmana-S-R" }, { "family_name": "Chen", "given_name": "Gang", "clpid": "Chen-G" }, { "family_name": "Ye", "given_name": "Jun", "clpid": "Ye-J" }, { "family_name": "Demler", "given_name": "Eugene", "clpid": "Demler-E" }, { "family_name": "Lukin", "given_name": "Mikhail D.", "orcid": "0000-0002-8658-1007", "clpid": "Lukin-M-D" }, { "family_name": "Rey", "given_name": "Ana Maria", "clpid": "Rey-A-M" } ], "abstract": "By selecting two dressed rotational states of ultracold polar molecules in an optical lattice, we obtain a highly tunable generalization of the t-J model, which we refer to as the t-J-V-W model. In addition to XXZ spin exchange, the model features density-density interactions and density-spin interactions; all interactions are dipolar. We show that full control of all interaction parameters in both magnitude and sign can be achieved independently of each other and of the tunneling. As a first step towards demonstrating the potential of the system, we apply the density matrix renormalization group method to obtain the 1D phase diagram of the simplest experimentally realizable case. Specifically, we show that the tunability and the long-range nature of the interactions in the t-J-V-W model enable enhanced superfluidity. Finally, we show that Bloch oscillations in a tilted lattice can be used to probe the phase diagram experimentally.", "doi": "10.1103/PhysRevLett.107.115301", "issn": "0031-9007", "publisher": "American Physical Society", "publication": "Physical Review Letters", "publication_date": "2011-09-08", "series_number": "11", "volume": "107", "issue": "11", "pages": "115301" }, { "id": "authors:t9yty-3pc24", "collection": "authors", "collection_id": "t9yty-3pc24", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20110805-095203741", "type": "article", "title": "Methane activation and exchange by titanium-carbon multiple bonds", "author": [ { "family_name": "Flores", "given_name": "Jaime A.", "clpid": "Flores-J-A" }, { "family_name": "Cavaliere", "given_name": "Vincent N.", "clpid": "Cavaliere-V-N" }, { "family_name": "Buck", "given_name": "Dominik", "clpid": "Buck-D" }, { "family_name": "Pint\u00e9r", "given_name": "Bal\u00e1zs", "clpid": "Pint\u00e9r-B" }, { "family_name": "Chen", "given_name": "George", "clpid": "Chen-G" }, { "family_name": "Crestani", "given_name": "Marco G.", "clpid": "Crestani-M-G" }, { "family_name": "Baik", "given_name": "Mu-Hyun", "clpid": "Baik-M-H" }, { "family_name": "Mindiola", "given_name": "Daniel J.", "clpid": "Mindiola-D-J" } ], "abstract": "We demonstrate that a titanium-carbon multiple bond, specifically an alkylidyne ligand in the transient complex, (PNP)Ti\u2261C^(t)Bu (A) (PNP^\u2212 = N[2-P(CHMe_2)_(2)-4-methylphenyl]_2), can cleanly activate methane at room temperature with moderately elevated pressures to form (PNP)Ti=CHtBu(CH_3). Isotopic labeling and theoretical studies suggest that the alkylidene and methyl hydrogens exchange, either via tautomerization invoking a \nmethylidene complex, (PNP)Ti=CH_(2)(CH_(2)^(t)Bu), or by forming the methane adduct (PNP)Ti\u2261C^(t)Bu(CH_4). The thermal, fluxional and chemical behavior of (PNP)Ti=CH^(t)Bu(CH_3) is also presented in this study.", "doi": "10.1039/C1SC00138H", "issn": "2041-6520", "publisher": "Royal Society of Chemistry", "publication": "Chemical Science", "publication_date": "2011-06-02", "series_number": "8", "volume": "2", "issue": "8", "pages": "1457-1462" }, { "id": "authors:nv20j-6k283", "collection": "authors", "collection_id": "nv20j-6k283", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:GRAacp07", "type": "article", "title": "An overview of snow photochemistry: evidence, mechanisms and impacts", "author": [ { "family_name": "Grannas", "given_name": "A. M.", "clpid": "Grannas-A-M" }, { "family_name": "Jones", "given_name": "A. E.", "clpid": "Jones-A-E" }, { "family_name": "Dibb", "given_name": "J.", "orcid": "0000-0003-3096-7709", "clpid": "Dibb-J-E" }, { "family_name": "Ammann", "given_name": "M.", "clpid": "Ammann-M" }, { "family_name": "Anastasio", "given_name": "C.", "clpid": "Anastasio-C" }, { "family_name": "Beine", "given_name": "H. J.", "clpid": "Beine-H-J" }, { "family_name": "Bergin", "given_name": "M.", "clpid": "Bergin-M" }, { "family_name": "Bottenheim", "given_name": "J.", "clpid": "Bottenheim-J" }, { "family_name": "Boxe", "given_name": "C. S.", "clpid": "Boxe-C-S" }, { "family_name": "Carver", "given_name": "G.", "clpid": "Carver-G" }, { "family_name": "Chen", "given_name": "G.", "clpid": "Chen-G" }, { "family_name": "Crawford", "given_name": "J. H.", "clpid": "Crawford-J-H" }, { "family_name": "Domin\u00e9", "given_name": "F.", "clpid": "Domin\u00e9-F" }, { "family_name": "Frey", "given_name": "M. M.", "clpid": "Frey-M-M" }, { "family_name": "Guzm\u00e1n", "given_name": "M. I.", "orcid": "0000-0002-6730-7766", "clpid": "Guzm\u00e1n-M-I" }, { "family_name": "Heard", "given_name": "D. E.", "clpid": "Heard-D-E" }, { "family_name": "Helmig", "given_name": "D.", "clpid": "Helmig-D" }, { "family_name": "Hoffmann", "given_name": "M. R.", "orcid": "0000-0001-6495-1946", "clpid": "Hoffmann-M-R" }, { "family_name": "Honrath", "given_name": "R. E.", "clpid": "Honrath-R-E" }, { "family_name": "Huey", "given_name": "L. G.", "orcid": "0000-0002-0518-7690", "clpid": "Huey-L-G" }, { "family_name": "Hutterli", "given_name": "M.", "clpid": "Hutterli-M" }, { "family_name": "Jacobi", "given_name": "H. W.", "clpid": "Jacobi-H-W" }, { "family_name": "Kl\u00e1n", "given_name": "P.", "clpid": "Kl\u00e1n-P" }, { "family_name": "Lefer", "given_name": "B.", "clpid": "Lefer-B" }, { "family_name": "McConnell", "given_name": "J.", "clpid": "McConnell-J" }, { "family_name": "Plane", "given_name": "J.", "clpid": "Plane-J" }, { "family_name": "Sander", "given_name": "R.", "clpid": "Sander-R" }, { "family_name": "Savarino", "given_name": "J.", "clpid": "Savarino-J" }, { "family_name": "Shepson", "given_name": "P. B.", "clpid": "Shepson-P-B" }, { "family_name": "Simpson", "given_name": "W. R.", "clpid": "Simpson-W-R" }, { "family_name": "Sodeau", "given_name": "J. R.", "clpid": "Sodeau-J-R" }, { "family_name": "von Glasow", "given_name": "R.", "clpid": "von-Glasow-R" }, { "family_name": "Weller", "given_name": "R.", "clpid": "Weller-R" }, { "family_name": "Wolff", "given_name": "E. W.", "clpid": "Wolff-E-W" }, { "family_name": "Zhu", "given_name": "T.", "clpid": "Zhu-T" } ], "abstract": "It has been shown that sunlit snow and ice plays an important role in processing atmospheric species. Photochemical production of a variety of chemicals has recently been reported to occur in snow/ice and the release of these photochemically generated species may significantly impact the chemistry of the overlying atmosphere. Nitrogen oxide and oxidant precursor fluxes have been measured in a number of snow covered environments, where in some cases the emissions significantly impact the overlying boundary layer. For example, photochemical ozone production (such as that occurring in polluted mid-latitudes) of 3\u20134 ppbv/day has been observed at South Pole, due to high OH and NO levels present in a relatively shallow boundary layer. Field and laboratory experiments have determined that the origin of the observed NOx flux is the photochemistry of nitrate within the snowpack, however some details of the mechanism have not yet been elucidated. A variety of low molecular weight organic compounds have been shown to be emitted from sunlit snowpacks, the source of which has been proposed to be either direct or indirect photo-oxidation of natural organic materials present in the snow. Although myriad studies have observed active processing of species within irradiated snowpacks, the fundamental chemistry occurring remains poorly understood. Here we consider the nature of snow at a fundamental, physical level; photochemical processes within snow and the caveats needed for comparison to atmospheric photochemistry; our current understanding of nitrogen, oxidant, halogen and organic photochemistry within snow; the current limitations faced by the field and implications for the future.", "issn": "1680-7316", "publisher": "European Geosciences Union", "publication": "Atmospheric Chemistry and Physics", "publication_date": "2007-08-22", "series_number": "16", "volume": "7", "issue": "16", "pages": "4329-4373" }, { "id": "authors:eaanb-hza03", "collection": "authors", "collection_id": "eaanb-hza03", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:GRAacpd07", "type": "article", "title": "An overview of snow photochemistry: evidence, mechanisms and impacts", "author": [ { "family_name": "Grannas", "given_name": "A. M.", "clpid": "Grannas-A-M" }, { "family_name": "Jones", "given_name": "A. E.", "clpid": "Jones-A-E" }, { "family_name": "Dibb", "given_name": "J.", "orcid": "0000-0003-3096-7709", "clpid": "Dibb-J-E" }, { "family_name": "Ammann", "given_name": "M.", "clpid": "Ammann-M" }, { "family_name": "Anastasio", "given_name": "C.", "clpid": "Anastasio-C" }, { "family_name": "Beine", "given_name": "H. J.", "clpid": "Beine-H-J" }, { "family_name": "Bergin", "given_name": "M.", "clpid": "Bergin-M" }, { "family_name": "Bottenheim", "given_name": "J.", "clpid": "Bottenheim-J" }, { "family_name": "Boxe", "given_name": "C. S.", "clpid": "Boxe-C-S" }, { "family_name": "Carver", "given_name": "G.", "clpid": "Carver-G" }, { "family_name": "Chen", "given_name": "G.", "clpid": "Chen-G" }, { "family_name": "Crawford", "given_name": "J. H.", "clpid": "Crawford-J-H" }, { "family_name": "Domin\u00e9", "given_name": "F.", "clpid": "Domin\u00e9-F" }, { "family_name": "Frey", "given_name": "M. M.", "clpid": "Frey-M-M" }, { "family_name": "Guzm\u00e1n", "given_name": "M. I.", "orcid": "0000-0002-6730-7766", "clpid": "Guzm\u00e1n-M-I" }, { "family_name": "Heard", "given_name": "D. E.", "clpid": "Heard-D-E" }, { "family_name": "Helmig", "given_name": "D.", "clpid": "Helmig-D" }, { "family_name": "Hoffmann", "given_name": "M. R.", "orcid": "0000-0001-6495-1946", "clpid": "Hoffmann-M-R" }, { "family_name": "Honrath", "given_name": "R. E.", "clpid": "Honrath-R-E" }, { "family_name": "Huey", "given_name": "L. G.", "orcid": "0000-0002-0518-7690", "clpid": "Huey-L-G" }, { "family_name": "Hutterli", "given_name": "M.", "clpid": "Hutterli-M" }, { "family_name": "Jacobi", "given_name": "H. W.", "clpid": "Jacobi-H-W" }, { "family_name": "Kl\u00e1n", "given_name": "P.", "clpid": "Kl\u00e1n-P" }, { "family_name": "Lefer", "given_name": "B.", "clpid": "Lefer-B" }, { "family_name": "McConnell", "given_name": "J.", "clpid": "McConnell-J" }, { "family_name": "Plane", "given_name": "J.", "clpid": "Plane-J" }, { "family_name": "Sander", "given_name": "R.", "clpid": "Sander-R" }, { "family_name": "Savarino", "given_name": "J.", "clpid": "Savarino-J" }, { "family_name": "Shepson", "given_name": "P. B.", "clpid": "Shepson-P-B" }, { "family_name": "Simpson", "given_name": "W. R.", "clpid": "Simpson-W-R" }, { "family_name": "Sodeau", "given_name": "J. R.", "clpid": "Sodeau-J-R" }, { "family_name": "von Glasow", "given_name": "R.", "clpid": "von-Glasow-R" }, { "family_name": "Weller", "given_name": "R.", "clpid": "Weller-R" }, { "family_name": "Wolff", "given_name": "E. W.", "clpid": "Wolff-E-W" }, { "family_name": "Zhu", "given_name": "T.", "clpid": "Zhu-T" } ], "abstract": "It has been shown that sunlit snow and ice plays an important role in processing atmospheric species. Photochemical production of a variety of chemicals has recently been reported to occur in snow/ice and the release of these photochemically generated species may significantly impact the chemistry of the overlying atmosphere. Nitrogen oxide and oxidant precursor fluxes have been measured in a number of snow covered environments, where in some cases the emissions significantly impact the overlying boundary layer. For example, photochemical ozone production (such as that occurring in polluted mid-latitudes) of 3\u20134 ppbv/day has been observed at South Pole, due to high OH and NO levels present in a relatively shallow boundary layer. Field and laboratory experiments have determined that the origin of the observed NOx flux is the photochemistry of nitrate within the snowpack, however some details of the mechanism have not yet been elucidated. A variety of low molecular weight organic compounds have been shown to be emitted from sunlit snowpacks, the source of which has been proposed to be either direct or indirect photo-oxidation of natural organic materials present in the snow. Although myriad studies have observed active processing of species within irradiated snowpacks, the fundamental chemistry occurring remains poorly understood. Here we consider the nature of snow at a fundamental, physical level; photochemical processes within snow and the caveats needed for comparison to atmospheric photochemistry; our current understanding of nitrogen, oxidant, halogen and organic photochemistry within snow; the current limitations faced by the field and implications for the future.", "issn": "1680-7367", "publisher": "European Geosciences Union", "publication": "Atmospheric Chemistry and Physics Discussions", "publication_date": "2007-03-29", "series_number": "2", "volume": "7", "issue": "2", "pages": "4165-4283" }, { "id": "authors:jsv3w-7ep09", "collection": "authors", "collection_id": "jsv3w-7ep09", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20180702-143246207", "type": "book_section", "title": "Integrated heterodyne array receivers for submillimeter astronomy", "book_title": "Millimeter and Submillimeter Detectors for Astronomy", "author": [ { "family_name": "Walker", "given_name": "C. K.", "clpid": "Walker-C-K" }, { "family_name": "Groppi", "given_name": "C. E.", "clpid": "Groppi-C-E" }, { "family_name": "Drouet d'Aubigny", "given_name": "C.", "clpid": "Drouet-d'Aubigny-C" }, { "family_name": "Kulesa", "given_name": "C.", "clpid": "Kulesa-C" }, { "family_name": "Hedden", "given_name": "A.", "clpid": "Hedden-A" }, { "family_name": "Prober", "given_name": "D.", "clpid": "Prober-D" }, { "family_name": "Siddiqi", "given_name": "I.", "clpid": "Siddiqi-I" }, { "family_name": "Kooi", "given_name": "J.", "orcid": "0000-0002-6610-0384", "clpid": "Kooi-J-W" }, { "family_name": "Chen", "given_name": "G.", "clpid": "Chen-G" }, { "family_name": "Lichtenberger", "given_name": "A. W.", "clpid": "Lichtenberger-A-W" } ], "contributor": [ { "family_name": "Phillips", "given_name": "Thomas G.", "clpid": "Phillips-T-G" }, { "family_name": "Zmuidzinas", "given_name": "Jonas", "clpid": "Zmuidzinas-J" } ], "abstract": "The advent of large format (~100 pixel) spectroscopic imaging cameras at submillimeter wavelengths would fundamentally change the way in which astronomy is performed in this important wavelength regime. While the possibility of such instruments has been discussed for more than two decades, only recently have advances in mixer technology, device fabrication, micromachining, digital signal processing, and telescope design made the construction of such an instrument possible and economical. In our paper, we will present the design concept for a 10\u00d710 heterodyne camera.", "doi": "10.1117/12.459375", "isbn": "9780819446343", "publisher": "Society of Photo-optical Instrumentation Engineers (SPIE)", "place_of_publication": "Bellingham, WA", "publication_date": "2003-02-17", "pages": "349-354" }, { "id": "authors:ragx5-kss11", "collection": "authors", "collection_id": "ragx5-kss11", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20150624-081132570", "type": "article", "title": "A glucose sensing polymer", "author": [ { "family_name": "Chen", "given_name": "G.", "clpid": "Chen-G" }, { "family_name": "Guan", "given_name": "Z.", "clpid": "Guan-Z" }, { "family_name": "Chen", "given_name": "C.-T.", "clpid": "Chen-C-T" }, { "family_name": "Fu", "given_name": "L.", "clpid": "Fu-L" }, { "family_name": "Sundaresan", "given_name": "V.", "clpid": "Sundaresan-V" }, { "family_name": "Arnold", "given_name": "F. H.", "orcid": "0000-0002-4027-364X", "clpid": "Arnold-F-H" } ], "abstract": "We have prepared robust polymers that can be used to measure glucose concentrations in complex\nbiological media. These materials offer the potential to develop continuous glucose monitoring systems as\nwell as extremely inexpensive devices for 'spot' blood glucose level measurements. At alkaline pH, a porous imprinted polymer containing the metal complex triazacyclononane-copper (II) (TACN-Cu^(2+)) binds\nglucose and releases protons in proportion to the surrounding glucose concentration. The proton response\nis extremely rapid and provides a convenient measure of the glucose concentration over a clinically\nrelevant range (0-25 mM). The inexpensive, robust metal-complexing polymer is sufficiently selective to\nprovide an easily measurable response to glucese in porcine plasma. The polymer's ability to function at\npH values as high as 12 (which deactivate enzymes but at which the buffer capacity of blood is small)\nmakes it possible to design simple and inexpensive sensing devices based on measurement of change in\npH.", "issn": "0065-7727", "publisher": "American Chemical Society", "publication": "Abstracts of Papers of the American Chemical Society", "publication_date": "1997-04-13", "volume": "213", "pages": "176-ANYL" }, { "id": "authors:shy6t-2qy34", "collection": "authors", "collection_id": "shy6t-2qy34", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20150623-100021833", "type": "article", "title": "A glucose-sensing polymer", "author": [ { "family_name": "Chen", "given_name": "G.", "clpid": "Chen-G" }, { "family_name": "Guan", "given_name": "Z.", "clpid": "Guan-Z" }, { "family_name": "Chen", "given_name": "C.-T.", "clpid": "Chen-C-T" }, { "family_name": "Fu", "given_name": "L.", "clpid": "Fu-L" }, { "family_name": "Sundaresan", "given_name": "V.", "clpid": "Sundaresan-V" }, { "family_name": "Arnold", "given_name": "F. H.", "orcid": "0000-0002-4027-364X", "clpid": "Arnold-F-H" } ], "abstract": "We have prepared robust polymers that can be used to measure glucose concentrations in complex\nbiological media. These materials offer the potential to develop continuous glucose monitoring systems as\nwell as extremely inexpensive devices for 'spot' blood glucose level measurements. At alkaline pH, a porous imprinted polymer containing the metal complex triazacyclononane-copper(II) (TACN-Cu^(2+)) binds\nglucose and releases protons in proportion to the surrounding glucose concentration. The proton response\nis extremely rapid and provides a convenient measure of the glucose concentration over a clinically\nrelevant range (0-25 mM). The inexpensive, robust metal-complexing polymer is sufficiently selective to\nprovide an easily measurable response to glucose in porcine plasma. The polymer's ability to function at\npH values as high as 12 (which deactivate enzymes but at which the buffer capacity of blood is small)\nmakes it possible to design simple and inexpensive sensing devices based on measurement of changes in\npH.", "issn": "0065-7727", "publisher": "American Chemical Society", "publication": "Abstracts of Papers of the American Chemical Society", "publication_date": "1997-04-13", "volume": "213", "pages": "234-PMSE" }, { "id": "authors:15fex-ewb28", "collection": "authors", "collection_id": "15fex-ewb28", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20180406-080326593", "type": "book_section", "title": "Hyperpolarizabilities of Push\u2014Pull Polyenes Molecular Orbital and Valence-Bond Charge-Transfer Models", "book_title": "Polymers for Second-Order Nonlinear Optics", "author": [ { "family_name": "Perry", "given_name": "J. W.", "clpid": "Perry-J-W" }, { "family_name": "Marder", "given_name": "S. R.", "clpid": "Marder-S-R" }, { "family_name": "Meyers", "given_name": "F.", "clpid": "Meyers-F" }, { "family_name": "Lu", "given_name": "D.", "clpid": "Lu-D" }, { "family_name": "Chen", "given_name": "G.", "clpid": "Chen-G" }, { "family_name": "Goddard", "given_name": "W. A., III", "orcid": "0000-0003-0097-5716", "clpid": "Goddard-W-A-III" }, { "family_name": "Br\u00e9das", "given_name": "J. L.", "clpid": "Br\u00e9das-J-L" }, { "family_name": "Pierce", "given_name": "B. M.", "clpid": "Pierce-B-M" } ], "abstract": "In this paper we review two theoretical approaches that illustrate the relationships between molecular (hyper)polarizabilities and bondlength alternation (BLA). In one approach, we employ sum-overstates calculations at the INDO-SDCI level on (CH_3)_2N-(CH=CH)_4-CHO, including an external, static, homogeneous electric field that unes the degree of ground-state polarization and BLA. In the second approach, we use a simple semiclassical model, wherein the mixing of valence bond (VB) and charge-transfer (CT) states along a BLA coordinate is treated. Qualitatively, the two approaches give very similar structure-property trends, that are consistent with experimental hyperpolarizability data on donor-acceptor polyenes. The agreement of the calculated trends reflects the importance of VB-CT energetics in determining them.", "doi": "10.1021/bk-1995-0601.ch003", "isbn": "9780841232631", "publisher": "American Chemical Society", "place_of_publication": "Washington, DC", "publication_date": "1995-08-11", "pages": "45-56" }, { "id": "authors:95g7p-gmb05", "collection": "authors", "collection_id": "95g7p-gmb05", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20170802-124308426", "type": "book_section", "title": "Parallel homotopy algorithm for large sparse generalized eigenvalue problems: Application to hydrodynamic stability analysis", "book_title": "Parallel Processing: CONPAR 92\u2014VAPP V", "author": [ { "family_name": "Chen", "given_name": "G.", "clpid": "Chen-G" }, { "family_name": "Keller", "given_name": "H. B.", "clpid": "Keller-H-B" }, { "family_name": "Lui", "given_name": "S. H.", "clpid": "Lui-S-H" }, { "family_name": "Roux", "given_name": "B.", "clpid": "Roux-B" } ], "contributor": [ { "family_name": "Boug\u00e9", "given_name": "Luc", "clpid": "Boug\u00e9-L" }, { "family_name": "Cosnard", "given_name": "Michel", "clpid": "Cosnard-M" }, { "family_name": "Robert", "given_name": "Yves", "clpid": "Robert-Y" }, { "family_name": "Trystram", "given_name": "Denis", "clpid": "Trystram-D" } ], "abstract": "A parallel homotopy algorithm is presented for finding a few selected eigenvalues (for example those with the largest real part) of Az = \u03bbBz with real, large, sparse, and nonsymmetric square matrix A and real, singular, diagonal matrix B. The essence of the homotopy method is that from the eigenpairs of Dz = \u03bbBz, we use Euler-Newton continuation to follow the eigenpairs of A(t)z = \u03bbBz with A(t) \u2261 (1\u2212t)D + tA. Here D is some initial matrix and \"time\" t is incremented from 0 to 1. This method is, to a large degree, parallel because each eigenpath can be computed independently of the others. The algorithm has been implemented on the Intel hypcrcubc. Experimental results on a 64-nodc Intel iPSC/860 hypercube are presented. It is shown how the parallel homotopy method may be useful in applications like detecting Hopf bifurcations in hydrodynamic stability analysis.", "doi": "10.1007/3-540-55895-0_427", "isbn": "978-3-540-55895-8", "publisher": "Springer", "place_of_publication": "Berlin", "publication_date": "1992", "pages": "331-342" }, { "id": "authors:p6h4g-ssb73", "collection": "authors", "collection_id": "p6h4g-ssb73", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:TABprl91", "type": "article", "title": "Nonlinear spectroscopy of cold atoms in a spontaneous-force optical trap", "author": [ { "family_name": "Tabosa", "given_name": "J. W. R.", "clpid": "Tabosa-J-W-R" }, { "family_name": "Chen", "given_name": "G.", "clpid": "Chen-G" }, { "family_name": "Hu", "given_name": "Z.", "clpid": "Hu-Z" }, { "family_name": "Lee", "given_name": "R. B.", "clpid": "Lee-R-B" }, { "family_name": "Kimble", "given_name": "H. J.", "clpid": "Kimble-H-J" } ], "abstract": "Probe-wave amplification and absorption spectra are reported for cesium atoms cooled and confined in a Zeeman-shift spontaneous-force optical trap. Novel spectral features are observed with narrow frequency widths and with single-pass gain of 20% in some cases. Negative radiation pressure is demonstrated as the mechanical consequence of optical gain and is investigated as a possible means for optical implosion of a trapped sample.", "doi": "10.1103/PhysRevLett.66.3245", "issn": "0031-9007", "publisher": "American Physical Society", "publication": "Physical Review Letters", "publication_date": "1991-06-24", "series_number": "25", "volume": "66", "issue": "25", "pages": "3245-3249" } ]