Results 331 to 340 of about 1,605,869 (375)
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IEEE Transactions on Instrumentation and Measurement, 2021
A dual-band sensor based on a planar rectangular cavity loaded with pairs of improved planar resonator is used to measure the permittivity difference of liquids with a small volume ( $2.5~\mu \text{l}$ ).
Weina Liu, Junjie Zhang, Kama Huang
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A dual-band sensor based on a planar rectangular cavity loaded with pairs of improved planar resonator is used to measure the permittivity difference of liquids with a small volume ( $2.5~\mu \text{l}$ ).
Weina Liu, Junjie Zhang, Kama Huang
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Surface optimization to eliminate hysteresis for record efficiency planar perovskite solar cells
Energy and Environmental Science, 2016Dong Yang, Xin Zhou, Zhou Yang
exaly +2 more sources
Highly efficient and stable planar perovskite solar cells by solution-processed tin oxide
Energy and Environmental Science, 2016Elham Halvani Anaraki +2 more
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Superconductivity in a quintuple-layer square-planar nickelate
Nature Materials, 2021Since the discovery of high-temperature superconductivity in copper oxide materials1, there have been sustained efforts to both understand the origins of this phase and discover new cuprate-like superconducting materials2.
G. Pan +20 more
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Reversible planar gliding and microcracking in a single-crystalline Ni-rich cathode
Science, 2020Cracking the problem of cracking cathodes Polycrystalline cathode materials that contain a combination of nickel, manganese, and cobalt have been used for advanced lithium batteries.
Yujing Bi +11 more
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Planar and non-planar borepins
Molecular Physics, 1996Theoretical studies of borepin and its B-substituted derivatives show planar structures with weak out-of-plane bending modes, often leading to boat-shaped borepins. The lowest vibrational frequency of borepin is 167 cm-1 at both HF/6-31G* and MP2/6-31G* levels, compared to 248 cm-1 calculated for the isoelectronic tropylium ion.
JEROME SCHULMAN, RAYMOND DISCH
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Lattices contained in planar orders are planar
Algebra Universalis, 1992The following is the main result of the paper. Let \(P\) be a finite ordered set with planar covering graph and let \(\text{cov}(P)\) be its planar representation. Let \(L\) be a truncated lattice contained in \(P\). Then the covering graph of \(L\) has a representation \(\text{cov}(L)\) in which, whenever \(b\) covers \(a\) in \(L\), the edge joining \
Ivan Rival +2 more
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Journal of Knot Theory and Its Ramifications, 2002
Let S be a connected open subset of 2-sphere S2 which is identified with the extended plane R2 ∪ {∞}. We assume that S contains the n segments {1, 2, …, n} × [-1, 1]. An n-lace ℓ (in S) is the union ℓ1 ∪ … ∪ ℓn of disjoint simple arcs in S such that ∂ ℓi = {(i, 1), (π (i),-1)}, i = 1, …, n, for some permutation π of {1, 2, …, n}.
Jin, GT Jin, Gyo Taek, Kim, H
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Let S be a connected open subset of 2-sphere S2 which is identified with the extended plane R2 ∪ {∞}. We assume that S contains the n segments {1, 2, …, n} × [-1, 1]. An n-lace ℓ (in S) is the union ℓ1 ∪ … ∪ ℓn of disjoint simple arcs in S such that ∂ ℓi = {(i, 1), (π (i),-1)}, i = 1, …, n, for some permutation π of {1, 2, …, n}.
Jin, GT Jin, Gyo Taek, Kim, H
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Methylammonium-free, high-performance, and stable perovskite solar cells on a planar architecture
Science, 2018Staying in the black phase Hybrid perovskite solar cells often use the more thermally stable formamidinium (FA) cation rather than methylammonium, but its larger size can create lattice distortion that results in an inactive yellow phase.
Silver‐Hamill Turren‐Cruz +2 more
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SIAM Journal on Discrete Mathematics, 1994
A separator in a graph \(G\) is a partition \((A,B,C)\) of \(V(G)\) such that \(| A|\), \(| B|\leq {2\over 3}| V(G)|\) and no vertex in \(A\) is adjacent to any vertex in \(B\); its order is \(| C|\). The authors give a short proof of a theorem of Lipton and Tarjan that for any planar graph with \(n\) vertices there is a separator of order \(\leq 2 ...
Noga Alon, Robin Thomas, Paul Seymour
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A separator in a graph \(G\) is a partition \((A,B,C)\) of \(V(G)\) such that \(| A|\), \(| B|\leq {2\over 3}| V(G)|\) and no vertex in \(A\) is adjacent to any vertex in \(B\); its order is \(| C|\). The authors give a short proof of a theorem of Lipton and Tarjan that for any planar graph with \(n\) vertices there is a separator of order \(\leq 2 ...
Noga Alon, Robin Thomas, Paul Seymour
openaire +2 more sources