Results 81 to 90 of about 4,930,166 (237)
The structure of periodic point free distal homeomorphisms on the annulus
Mathematische ZeitschriftLet $A$ be an annulus in the plane $\mathbb R^2$ and $g:A\rightarrow A$ be a boundary components preserving homeomorphism which is distal and has no periodic points. Then there is a continuous decomposition of $A$ into $g$-invariant circles such that all the restrictions of $g$ on them share a common irrational rotation number and all these circles are
Shi, Enhui, Xu, Hui, YU, Ziqi
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Minimum width color spanning annulus
, 2018 Given a set P={p1,p2,…,pn} of n points in [Figure presented] and each assigned with one of the given k distinct colors, we study the problem of finding the minimum width color spanning annulus of different shapes.
Sasanka Roy +5 more
core +1 more source
FEBS Letters, EarlyView.Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise +5 more
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Existence of quasi-periodic orbits for twist homeomorphisms of the annulus
Topology, 1982 この論文で用いる方法は, Percivalが数値的に準周期軌道を見つけるのに使った方法 [3,4]に 密接に関係している. Percivalは自分の方法で存在定理を証明しなかった. 定理を述べるには,円環自身よりもその普遍被覆Aで仕事する方が都合がよい. A = {(x, y) ∈ R : 0 ≤ y ≤ 1}とする. T : A → Aを平行移動 T (x, y) = (x + 1, y)とする. f はAの面積保 存, 方向保存, かつ境界成分保存の同相写像であって, fT = Tfを満たすとする. 加えて, y > z なら f(x, y)1 > f(x, z)1と仮定する. ここで p = (x, y) ∈ Aのとき p1 = x と約束する. これが 「ねじれ条件」である. fi = fR
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Mean action of periodic orbits of area-preserving annulus diffeomorphisms [PDF]
Journal of Topology and Analysis, 2019 An area-preserving diffeomorphism of an annulus has an “action function” which measures how the diffeomorphism distorts curves. The average value of the action function over the annulus is known as the Calabi invariant of the diffeomorphism, while the average value of the action function over a periodic orbit of the diffeomorphism is the mean action ...
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Structure of air-water bubbly flow in a vertical annulus [PDF]
, 2002 Local measurements of flow parameters were performed for vertical upward bubbly flows in an annulus. The annulus channel consisted of an inner rod with a diameter of 19.1 mm and an outer round tube with an inner diameter of 38.1 mm, and the hydraulic ...
Situ, Rong +3 more
core
The ubiquitin system in normal and infected germinal center B cells
FEBS Letters, EarlyView.The ubiquitin system plays a central role in germinal center (GC) B cells, influencing differentiation to long‐lived memory B cells. Oncogenic gammaherpesviruses gain access to memory B cells by establishing latency in GC B cells. Mapping ubiquitin mechanisms in normal and infected GC B cells will define specific molecular circuits in B cells germane ...
Destiny Davis +2 more
wiley +1 more source
Nine Limit Cycles in a 5-Degree Polynomials Liénard System
Complexity, 2020 In this article, we study the limit cycles in a generalized 5-degree Liénard system. The undamped system has a polycycle composed of a homoclinic loop and a heteroclinic loop.
Junning Cai, Minzhi Wei, Hongying Zhu
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operculum annulus persitome [PDF]
, 2022 Recording of operculum annulus peristome, courtesy of Masaki ...
Shimamura, Masaki
core
Membrane composition and thermodynamic identity as boundaries of life for synthetic cell research
FEBS Letters, EarlyView.What makes a cell a cell? The boundary of a living cell is not just a wall. Read as a Markov blanket, the membrane separates internal from external states, generating identity and non‐equilibrium order. Can this identity be rebuilt from scratch in a synthetic cell?
Caterina Presutti, Bert Poolman
wiley +1 more source