Occlusion Identification and Relief within Branched Structures

2010 ◽  
pp. 173-213
Author(s):  
Youhua Du ◽  
Ahmed Al-Jumaily ◽  
David White
Keyword(s):  
Branched Structures

scholarly journals Tentacle Morphological Variation Coincides with Differential Expression of Toxins in Sea Anemones

Toxins ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 452
Author(s):  
Lauren M. Ashwood ◽  
Michela L. Mitchell ◽  
Bruno Madio ◽  
David A. Hurwood ◽  
Glenn F. King ◽  
...  
Keyword(s):  
Differential Expression ◽  
Morphological Variation ◽  
Expression Profiles ◽  
The Body ◽  
Sea Anemones ◽  
Tissue Specific ◽  
Venom Composition ◽  
Specific Manner ◽  
Branched Structures ◽  
Morphological Variants

Phylum Cnidaria is an ancient venomous group defined by the presence of cnidae, specialised organelles that serve as venom delivery systems. The distribution of cnidae across the body plan is linked to regionalisation of venom production, with tissue-specific venom composition observed in multiple actiniarian species. In this study, we assess whether morphological variants of tentacles are associated with distinct toxin expression profiles and investigate the functional significance of specialised tentacular structures. Using five sea anemone species, we analysed differential expression of toxin-like transcripts and found that expression levels differ significantly across tentacular structures when substantial morphological variation is present. Therefore, the differential expression of toxin genes is associated with morphological variation of tentacular structures in a tissue-specific manner. Furthermore, the unique toxin profile of spherical tentacular structures in families Aliciidae and Thalassianthidae indicate that vesicles and nematospheres may function to protect branched structures that host a large number of photosynthetic symbionts. Thus, hosting zooxanthellae may account for the tentacle-specific toxin expression profiles observed in the current study. Overall, specialised tentacular structures serve unique ecological roles and, in order to fulfil their functions, they possess distinct venom cocktails.

scholarly journals Rigidity of Branching Microstructures in Shape Memory Alloys

2021 ◽  
Author(s):  
Theresa M. Simon
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Differential Inclusion ◽  
Linearized Strain ◽  
Weak Limits ◽  
All Solutions ◽  
Rank One ◽  
Branched Structures ◽  
Habit Planes

AbstractWe analyze generic sequences for which the geometrically linear energy $$\begin{aligned} E_\eta (u,\chi )\,{:}{=} \,\eta ^{-\frac{2}{3}}\int _{B_{1}\left( 0\right) } \left| e(u)- \sum _{i=1}^3 \chi _ie_i\right| ^2 \, \mathrm {d}x+\eta ^\frac{1}{3} \sum _{i=1}^3 |D\chi _i|({B_{1}\left( 0\right) }) \end{aligned}$$ E η ( u , χ ) : = η - 2 3 ∫ B 1 0 e ( u ) - ∑ i = 1 3 χ i e i 2 d x + η 1 3 ∑ i = 1 3 | D χ i | ( B 1 0 ) remains bounded in the limit $$\eta \rightarrow 0$$ η → 0 . Here $$ e(u) \,{:}{=}\,1/2(Du + Du^T)$$ e ( u ) : = 1 / 2 ( D u + D u T ) is the (linearized) strain of the displacement u, the strains $$e_i$$ e i correspond to the martensite strains of a shape memory alloy undergoing cubic-to-tetragonal transformations and the partition into phases is given by $$\chi _i:{B_{1}\left( 0\right) } \rightarrow \{0,1\}$$ χ i : B 1 0 → { 0 , 1 } . In this regime it is known that in addition to simple laminates, branched structures are also possible, which if austenite was present would enable the alloy to form habit planes. In an ansatz-free manner we prove that the alignment of macroscopic interfaces between martensite twins is as predicted by well-known rank-one conditions. Our proof proceeds via the non-convex, non-discrete-valued differential inclusion $$\begin{aligned} e(u) \in \bigcup _{1\le i\ne j\le 3} {\text {conv}} \{e_i,e_j\}, \end{aligned}$$ e ( u ) ∈ ⋃ 1 ≤ i ≠ j ≤ 3 conv { e i , e j } , satisfied by the weak limits of bounded energy sequences and of which we classify all solutions. In particular, there exist no convex integration solutions of the inclusion with complicated geometric structures.

Understanding propyl cyanide and its isomers formation: ab initio study of the spectroscopy and reaction mechanisms

2019 ◽  
Vol 21 (42) ◽  
pp. 23375-23384 ◽  
Author(s):  
Boutheïna Kerkeni ◽  
Victoria Gámez ◽  
Maria Luisa Senent ◽  
Nicole Feautrier
Keyword(s):  
Ab Initio ◽  
Reaction Mechanisms ◽  
Galactic Center ◽  
Theoretical Studies ◽  
Ab Initio Study ◽  
Star Forming ◽  
Branched Structures ◽  
Experimental And Theoretical Studies

Recent detection of propyl cyanide (C3H7CN) toward the Galactic Center star-forming source Sagittarius B2(N) with both linear and branched structures has stimulated many experimental and theoretical studies.

Insights into mechanical properties of certain bio-inspired branched structures

Meccanica ◽  
2018 ◽  
Vol 53 (9) ◽  
pp. 2209-2220
Author(s):  
Ivana Kovacic ◽  
Dragi Radomirovic
Keyword(s):  
Mechanical Properties ◽  
Branched Structures

Branched Structures in Plants and Architecture

2016 ◽  
pp. 195-215 ◽  
Author(s):  
Larissa Born ◽  
Florian A. Jonas ◽  
Katharina Bunk ◽  
Tom Masselter ◽  
Thomas Speck ◽  
...  
Keyword(s):  
Branched Structures

scholarly journals Effects of catalyst droplets on wire growth and the resulting branched structures during VLS growth

Nanoscale ◽  
2020 ◽  
Vol 12 (14) ◽  
pp. 7538-7543
Author(s):  
Miao Song ◽  
Youtian Zhang ◽  
Jaehun Chun ◽  
Shenyang Hu ◽  
Ming Tang ◽  
...  
Keyword(s):  
Experimental Parameters ◽  
Vls Growth ◽  
Branched Structures ◽  
Branch Density

Kinetically controlling the branch density by varying the experimental parameters, such as temperature.

One-dimensional molecular nano-branched structures of tetrathiafulvalene derivative with crown ether

2019 ◽  
Vol 59 (SD) ◽  
pp. SDDA10
Author(s):  
Shota Nakamura ◽  
Tsubasa Takei ◽  
Sadafumi Nishihara ◽  
Shuji Okada ◽  
Tomoyuki Akutagawa ◽  
...  
Keyword(s):  
Crown Ether ◽  
One Dimensional ◽  
Branched Structures ◽  
Tetrathiafulvalene Derivative

Polycondensation of H3PO4with glycerol: From branched structures to hydrolytically reversible gels

2014 ◽  
pp. n/a-n/a
Author(s):  
Julia Pretula ◽  
Krzysztof Kaluzynski ◽  
Ryszard Szymanski ◽  
Stanislaw Penczek
Keyword(s):  
Branched Structures
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