搜索结果: 1-15 共查到“理学 suspension”相关记录28条 . 查询时间(0.093 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Suspension Homotopy of 4-manifolds And the Second 2-local Cohomotopy Sets
4-流形 悬浮同伦 第二个 2-局部 同伦集合
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2023/4/28
In this talk we study the homotopy type of the (double) suspension of an orientable, closed, connected 4-manifold M, whose integral homology can have 2-torsion. Moreover, the decomposition results are...
Ethylene activates a plasma membrane Ca2+-permeable channel in tobacco suspension cells
cytosolic Ca2+ activity ethylene patch-clamp plasma membrane Ca2+-permeable channel tobacco (Nicotiana tabacum) suspension cells
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2015/2/5
Here, the effects of the ethylene-releasing compound, ethephon, and the ethylene precursor, 1-aminocyclopropane-1-carboxylic acid (ACC), on ionic currents across plasma membranes and on the cytosolic ...
Arecibo Observatory main suspension cable repaired following earthquake（图）
earthquake Arecibo Observatory
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2014/3/20
MENLO PARK, Calif.—March 12, 2014—On January 13, 2014, the William E. Gordon radio telescope in Arecibo, Puerto Rico sustained damage following a 6.4 magnitude earthquake that was centered 37 miles no...
Arecibo Observatory main suspension cable repaired following earthquake
Arecibo Observatory earthquake
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2014/3/20
On Jan. 13, 2014, the William E. Gordon radio telescope in Arecibo, Puerto Rico, sustained damage following a 6.4 magnitude earthquake that was centered 37 miles northwest of Arecibo. Today, the obser...
Creation of Homoclinic Tangencies in Hamiltonians by the Suspension of Poincaré Sections
Hamiltonian vector field Anosov flow elliptic point homoclinic tangency
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2011/9/16
Abstract: In this note we show that for any Hamiltonian defined on a symplectic 4-manifold M and any point p in M, there exists a C2-close Hamiltonian whose regular energy surface through p is either ...
Heat Kernel Coefficients for Laplace Operators on the Spherical Suspension
Heat Kernel Coefficients Laplace Operators Spherical Suspension
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2011/9/14
Abstract: In this paper we compute the coefficients of the heat kernel asymptotic expansion for Laplace operators acting on scalar functions defined on the so called spherical suspension (or Riemann c...
Suspension and Measurement of Graphene and Bi2Se3 Atomic Membranes
Suspension Measurement of Graphene Bi2Se3 Atomic Membranes
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2010/11/22
Coupling high quality, suspended atomic membranes to specialized electrodes enables investigation of many novel phenomena, such as spin or Cooper pair transport in these two
dimensional systems. Howe...
Mobility and Diffusion of a Tagged Particle in a Driven Colloidal Suspension
Mobility Diffusion Driven Colloidal Suspension
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2010/11/23
We study numerically the in uence of density and strain rate on the di usion and mobility of a single tagged particle in a sheared colloidal suspension. We determine independently the time-dependent v...
Lie-Hopf algebras and loop homology of suspension spaces
Lie-Hopf algebras loop homology suspension spaces
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2010/11/18
For an arbitrary topological space $X$, the loop space homology $H_*(\Omega\Sigma X; \mathbb{Z})$ is a Hopf algebra. We introduce a new homotopy invariant of a topological space $X$ that takes values...
Variations in the optical properties of a particle suspension associated with viral infection of marine bacteria
Variations particle suspension associated marine bacteria
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2014/4/17
A laboratory experiment was conducted to examine the temporal dynamics of the particle size distribution
(PSD) and associated optical variability caused by viral infection of marine heterotrophic bac...
Establishment of the Suspension Culture System and Optimization of Biosynthesis of Gallic Acid in Acer ginnala
茶条槭 细胞生长 没食子酸 悬浮培养
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2009/11/18
初步建立茶条槭(Acer ginnala)细胞悬浮培养体系: 以茶条槭子叶为外植体, 接种于WPM培养基中, 对茶条槭愈伤组织进行诱导和继代培养。悬浮培养中, 每代增长指数达到11.6, 没食子酸含量达到1.518%。通过对比NT、IS、WPM、B5和MS培养基所含成分对茶条槭愈伤组织悬浮培养的影响, 综合考虑悬浮细胞的生长速率和有效成分的含量, 确定WPM为基本培养基。WPM培养基大量元素的浓度...
Restoration and amplification of image through moving randomly suspension particles using photorefractive two-wave mixing
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2007/7/28
期刊信息
篇名
Restoration and amplification of image through moving randomly suspension particles using photorefractive two-wave mixing
语种
英文
撰写或编译
撰写
作者
Zhang Guangyin,Xu Jingjun,Liu Simin,Men Liqiu,Liu ...
A Novel N-Succinylchitosan-graft-Polyacrylamide/Attapulgite Composite Hydrogel Prepared through Inverse Suspension Polymerization
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2011/12/14
A novel N-succinylchitosan-graft-polyacrylamide/attapulgite composite hydrogel was prepared by using N-succinylchitosan, acrylamide and attapulgite through inverse suspension polymerization. The resul...
Behavior of storm-induced suspension interflow in subtropical Feitsui Reservoir, Taiwan
subtropical Feitsui Reservoir suspension interflow
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2014/5/4
A storm-induced suspension interflow (a kind of turbidity current) in subtropical deep (113-m maximum depth) Feitsui Reservoir, Taiwan, was traced and simulated for both water quantity and quality con...
Clearance of aquatic hyphomycete spores by a benthic suspension feeder
Clearance of aquatic hyphomycete spores benthic suspension feeder
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2014/5/19
We placed individual Elliptio complanata in aerated suspensions of conidia (asexual spores) of aquatic hyphomycetes (Fungi). Mussels actively ingested conidia at an initial rate of over 20,000 h-1. Th...