12,700 research outputs found
Recent progress in block copolymer crystallization
No full textBlock copolymers (BCPs) are important for technological advances in numerous industries, including but not limited to, electronics, biomedical, optics, environmental, and infrastructure. Because of their ubiquity, it is important to understand their hierarchical phase behavior to tune their macroscopic properties for efficient use. These macroscopic properties are derived from the microscopic self‐assembled structures. One unique form of hierarchical assembly exists when one or more of the polymeric blocks form lamellar crystals. These crystals are integral to understanding and predicting the macroscopic behavior. This review reports on recent advances in crystallization of BCPs, including bulk and solution assembly. Reports highlighting development in fundamental processes regarding crystallization mechanisms and behavior as well as for the design of practical applications are included.Financial support during the preparation of this manuscript was provided by NSF DMR‐1606532.Final manuscript post peer review, without publisher's formatting or copy
editing (postprint
Ryan Family Olive Orchard
No full textFor ten years the Ryan Family has been growing seven acres of Merlot grapes on their property in the Napa Valley. One block of grapes is located on the side of a dam of a small pond in the middle of the property. This block of grapes contains many diseased plants with low crop yields. The Ryan Family decided they wanted to remove the grapes and plant olive trees at this location. The family wants a variety of olives that produce high quality olive oil. Although the project is straight forward, one of the issues with the established location of the olive trees is that the ground has a steep, uneven slope so a retaining wall will need to be built and soil will need to be added to modify the angle of the slope. This project will research and develop a pilot olive orchard for the Ryan Family
Solubility considerations in relative block crystallization and morphology of PEO-b-PCL films
No full textPoly(ethylene oxide)-block-poly(epsilon-caprolactone) (PEO-b-PCL) is a heavily investigated amphiphilic crystalline-crystalline diblock copolymer. Its macroscopic physical properties are influenced by the crystallization behavior, which is robust due to similar crystallization temperatures of PEO and PCL. As such, tailoring the crystallinity and crystalline morphology should be advantageous to achieving desired changes in film properties. One method to manipulate the crystallization, analyzed here, is the selective solvation of one block during solvent casting. By careful solvent selection, the crystallization of PEO and PCL during solvent evaporation led to changes in relative crystallinity and film morphology. The effect of environmental humidity on the crystallization mechanism and relative block crystallization was explored in detail using Fourier-transform infrared spectroscopy.Postprin
Smith, Mitchell, Ryan, Block, Keenum at Block presentation
No full textMSU Libraries\u27 Fred Smith shares with the guests the significance of the Block Collection (seated l to r) Dr. Dennis Mitchell, Dr. Peter Ryan, John Robinson Block, and Dr. Mark Keenu
Quasi-cyclic Generalized LDPC codes with low error floors
No full textIn this paper, a novel methodology for designing structured generalized LDPC (G-LDPC) codes is presented. The proposed design results in quasi-cyclic G-LDPC codes for which efficient encoding is feasible through shift-register-based circuits. The structure imposed on the bipartite graphs, together with the choice of simple component codes, leads to a class of codes suitable for fast iterative decoding. A pragmatic approach to the construction of G-LDPC codes is proposed. The approach is based on the substitution of check nodes in the protograph of a low-density parity-check code with stronger nodes based, for instance, on Hamming codes. Such a design approach, which we call LDPC code doping, leads to low-rate quasi-cyclic G-LDPC codes with excellent performance in both the error floor and waterfall regions on the additive white Gaussian noise channel
Block Card 4718 Ryan Road
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Ranch houses | 4718 Ryan Road (Toledo, Ohio) | Dwelling | Orchard Dale Estates (Toledo, Ohio) | South Toledo Area (Toledo, Ohio
Block Card 4670 Ryan Road
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Ranch houses | 4670 Ryan Road (Toledo, Ohio) | Dwelling | Orchard Dale Estates (Toledo, Ohio) | South Toledo Area (Toledo, Ohio
Block Card 4822 Ryan Road
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Ranch houses | 4822 Ryan Road (Toledo, Ohio) | Dwelling | Meadowbrook (Toledo, Ohio) | South Toledo Area (Toledo, Ohio
Block Card 4739 Ryan Court
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Ranch houses | 4739 Ryan Court (Toledo, Ohio) | Dwelling | Orchard Dale Estates (Toledo, Ohio) | South Toledo Area (Toledo, Ohio
Block Card 4707 Ryan Road
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Ranch houses | 4707 Ryan Road (Toledo, Ohio) | Dwelling | Orchard Dale Estates (Toledo, Ohio) | South Toledo Area (Toledo, Ohio
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