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Now showing items 1 - 16 of 91

  • The Tjon band in Nuclear Lattice Effective Field Theory

    Klein, Nico   Elhatisari, Serdar   Lähde, Timo A.   Lee, Dean   Meißner, Ulf-G.  

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  • HOT MELT ADHESIVE COMPOSITION INCLUDING A BLOCK COMPOSITE COMPATIBILIZER

    A hot melt adhesive (HMA) composition includes (A) from 1-60 wt% of a block composite compatibilizer comprising (i) a hard polymer that includes propylene, (ii) a soft polymer that includes ethylene, and (iii) a block copolymer having a soft block and a hard block, the hard block of the block copolymer having the same composition as the hard polymer of the block composite compatibilizer and the soft block of the block copolymer having the same composition as the soft polymer of the block composite compatibilizer; (B) from 1-70 wt% of a tackifier; (C) from 1-40 wt% of at least one selected from the group of a wax and an oil; and (D) Optionally, from greater than zero to 97 wt% of a polymer component that includes an ethylene-based polymer and/or a propylene-based polymer.
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  • Cold dilute neutron matter on the lattice. II. Results in the unitary limit

    Lee, Dean   Sch?fer, Thomas  

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  • Neutron matter on the lattice with pionless effective field theory

    Lee, Dean   Sch?fer, Thomas  

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  • METHODS AND APPARATUS FOR DRILLING, COMPLETING AND CONFIGURING U-TUBE BOREHOLES

    A borehole network including first and second end surface locations and at least one intermediate surface location interconnected by a subterranean path, and a method for connecting a subterranean path between a first borehole including a directional section and a second borehole including a directional section. A directional drilling component is drilled in at least one of the directional sections to obtain a required proximity between the first and second boreholes. An intersecting component is drilled, utilizing magnetic ranging techniques, from one directional section to provide a borehole intersection between the first and second boreholes, thereby connecting the subterranean path.
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  • Lattice improvement in lattice effective field theory

    Klein, Nico   Lee, Dean   Meißner, Ulf -G.  

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  • High Osmotic Pressure Chromatography of Poly(ε-caprolactone) in Near-? Solvent

    Lee, Dean   Gong, Yingchuan   Teraoka, Iwao  

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  • Nuclear lattice simulations with chiral effective field theory

    Lee, Dean   Borasoy, Bu?ra   Schaefer, Thomas  

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  • Scale-up study of high osmotic pressure chromatography for separation of poly(?-caprolactone)

    Lee, Dean   Teraoka, Iwao  

    Methods to prepare fractions of poly(?-caprolactone) with a narrow molecular mass distribution in large quantities have been examined using high osmotic pressure chromatography under the theta condition. Effects of column dimension and coupling columns in series on the separation resolution were studied. We found that use of a thicker column can improve the resolution if adverse effects of viscous fingering are avoided. We also demonstrated that coupling the columns results in a better separation if the second column does not adsorb high-molecular-mass components purified in the first column.
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  • NUCLEATION WITH A BLOCK COMPOSITE NUCLEATOR

    A composition includes (A) 30-95 wt% of a random or homogeneous propylene-based interpolymer having: (i) a comonomer content of at least one of C2 and C4-10 α-olefins of 7 wt% to 49 wt% based on the total weight of the propylene-based interpolymer, (ii) a density of 0.90 g/cc or less, and (iii) an MFR of 1 g/10 min or greater (230°C/2.16 kg); and (B) 5-70 wt% of a block composite nucleator comprising: (1) a first polymer that includes polypropylene; (2) a second polymer that includes an alpha-olefin based polymer, the alpha-olefin being selected from at least one of a C2 and C4-10 α-olefins, and (3) a block copolymer having a first segment and a second segment, the first segment of the block copolymer having the same composition as the first polymer in the block composite nucleator and the second segment of the block copolymer having the same composition as the second polymer of the block composite nucleator.
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  • Welcome to Fort Lee, Virginia COL(R) Gary Dinsick Mr. Dean Rhody Mr. Tom Pantelides

    Ann E. Dunwoody  

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  • Massless three-dimensional QED with explicit fermions

    Lee, Dean   Maris, Pieter  

    We study dynamical mass generation in QED in 2+1 dimensions using Hamiltonian lattice methods. We use staggered fermions, and perform simulations with explicit dynamical fermions in the chiral limit. We demonstrate that a recently developed method to reduce the fermion sign problem can successfully be applied to this problem. Our results are in agreement with both the strong coupling expansion and with the Euclidean lattice simulations
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  • Cold dilute neutron matter on the lattice. I. Lattice virial coefficients and large scattering lengths

    Lee, Dean   Sch?fer, Thomas  

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  • The diagonalization of quantum field Hamiltonians

    Lee, Dean   Salwen, Nathan   Lee, Daniel  

    We introduce a new diagonalization method called quasi-sparse eigenvector diagonalization which finds the most important basis vectors of the low energy eigenstates of a quantum Hamiltonian. It can operate using any basis, either orthogonal or non-orthogonal, and any sparse Hamiltonian, either Hermitian, non-Hermitian, finite-dimensional, or infinite-dimensional. The method is part of a new computational approach which combines both diagonalization and Monte Carlo techniques.
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  • Numerical Analysisby Lee W. Johnson; R. Dean Riess

    Review by: D. W. Arthur  

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  • Termini and main-chain composition of monomethoxy-terminated poly(ethylene glycol) studied by two-dimensional column chromatography

    Lee, Dean   Teraoka, Iwao  

    Samples of poly(ethylene glycol) especially those with functionalized ends have dimeric, trimeric, and tetrameric components at twice, three times, and four times as high a molecular weight (MW) as that of the main component. We used two-dimensional column chromatography to evaluate the MW and identify the terminal groups in each component. The first step is high osmotic pressure chromatography to prepare a sufficient amount of fractions that contain different percentages of the multimeric components. In the second step, each of the fractions was characterized by using regular size exclusion chromatography and high-resolution NMR. Decomposition of the chromatogram combined with isolation of the terminal methoxy peak in the NMR spectrum led to unique identification of the terminal groups. We thus found that the monomeric component is monomethoxy-terminated whereas the dimeric and other multimeric components are mostly dihydroxy-terminated.
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