22 article(s) from Gorb, Stanislav N
- Full Research Paper
- Published 21 Nov 2022
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Figure 1: Biological role model and biomimetic air retaining surfaces. a) Leaf of the floating fern Salvinia ...
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Figure 2: Confirmation of the persistence of the air layer in low water depth and analysis of the shape of th...
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Figure 3: Results of the long term investigations of air layers on MSM in three different depths. a) The grap...
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Figure 4: To determine pressure stability and diffusion behavior of the MSM, CLSM and a custom-made pressure ...
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Figure 5: Results of the pressure stability and diffusion behavior experiments. a) With increasing pressure (...
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Figure 6: SEM images of the MSM after they have been submerged for one month in tap water. a) A microbial neu...
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- Full Research Paper
- Published 22 Aug 2022
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Figure 1: Plant organs and surfaces examined. (a, b) Vegetative organs: the inner, adaxial (LBad) and outer, ...
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Figure 2: Cryo-SEM micrographs of leaf lamina surfaces. (a, b) Adaxial side. (c–f) Abaxial side. GR, groove; ...
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Figure 3: Cryo-SEM micrographs of the fractured epidermis of the leaf lamina. (a–c) Adaxial side. (d, e) Abax...
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Figure 4: Cryo-SEM micrographs of the abaxial side of the ligule. (a) General view of the surface. (b–e) Wax ...
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Figure 5: Cryo-SEM micrographs of the surfaces in the generative organs. (a–c) The pedicel. (d–f) The abaxial...
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- Full Research Paper
- Published 22 Apr 2022
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Figure 1: Specimens. (a) The middle part of the hind tibia was cut from the desert locust. Indents were perfo...
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Figure 2: Elastic modulus and water content of specimens in different treatment groups. (a) The elastic modul...
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Figure 3: Elastic modulus of (a) frozen, (b) desiccated and (c) rehydrated tibiae against recorded time. Diff...
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- Review
- Published 15 Jul 2021
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Figure 1: Diversity of investigated study organisms with attachment devices visualised across the animal tree...
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Figure 2: Attachment systems of animals. (A) Schematic representation of hairy (a, b) and smooth (c, d) attac...
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Figure 3: Phylogeny of Polyneoptera (following [122]). Coloured squares indicate the type of attachment pads, 1dif...
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Figure 4: Scanning electron microscopy (SEM) images of a typical phasmatodean tarsus. Orestes draegeri Bresse...
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Figure 5: Diversity of stick insect ecomorphs and their respective euplantular AMS. (A) Eurycantha calcarata,...
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Figure 6: Compliancy of adhesive structures to the substrate (A,B) and contact splitting (C). (A) Contact of ...
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Figure 7: Convergent evolution of an asymmetry of micro- and nanostructural features (scheme is given in the ...
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Figure 8: Fluid micro- and nanodrops in animal attachment pads. (A) Carbon–platinum replica of frozen and coa...
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Figure 9: Diagram summarizing structural features of smooth attachment pads that evolved in a convergent matt...
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Figure 10: Sources of bioinspiration for attachment systems from the animal tree of life. Shown are the exampl...
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- Full Research Paper
- Published 14 Dec 2018
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Figure 1: a) The backswimmer N. glauca. The silvery shine on the surface of the hemelytra is caused by the to...
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Figure 2: a) Left hemelytron of the backswimmer N. glauca. Four sections, defined by Wachmann [17], are shown. b)...
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Figure 3: Transmission electron microscopy images of setae on the hemelytra of N. glauca. a–d) Clavus. a) Tub...
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Figure 4: a) Three-dimensional reconstruction of a hemelytron µCT scan. The tomography data allowed an analys...
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Figure 5: Toluidine blue/borax stained semi-thin sections through the clavus of a hemelytron of N. glauca (do...
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Figure 6: a) Image of a water droplet detaching from the surface of N. glauca. The deformation of the droplet...
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Figure 7: Proposed Notonecta forewing surface function. An air layer is kept in between the setae. The club-s...
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Figure 8: a) Setup used for the proof of concept for the biomimetic Notonecta sensor inspired by the backswim...
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- Full Research Paper
- Published 05 Dec 2016
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Figure 1: Mucilage composition. Bright field and fluorescence microscopy images of different staining reactio...
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Figure 2: Desiccation dynamics of five individual plantain seeds (solid lines) and a water droplet (dashed li...
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Figure 3: Adhesion force (Fad) of mucilaginous seeds measured at different degrees of desiccation after full ...
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Figure 4: The ratio of pull-off force (Fad) to contact area (A0) (adhesion stress) for five individual seeds ...
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Figure 5: Dynamics of the friction coefficient, µ. The friction coefficient was calculated according to Equation 2 with...
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Figure 6: The comparison of the mean values of Fad (adhesion force) and Fad/A0 (adhesion stress) at different...
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- Full Research Paper
- Published 18 Oct 2016
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Figure 1: Typical AFM images of Si substrates before (a) and after (b) ODS-monolayer formation, (c) FAS17-mon...
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Figure 2: Typical top-down-view SEM images of sample surfaces: (a) Never Wet, (b) VUV-Never Wet, and (c) Soot...
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Figure 3: Traction forces of Coccinella septempunctata beetles measured on different sample surfaces: (a) dat...
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Figure 4: Hypothetical wetting behavior of the pad fluid (purple) in the contact region between the tenent se...
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- Full Research Paper
- Published 22 Sep 2016
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Figure 1: Attachment devices of Coccinella septempuctata (A) attachment devices. Tarsi of forelegs (B), midle...
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Figure 2: Schematic of the experimental setup used for traction force experiments under controlled ambient hu...
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Figure 3: Box-and-whiskers plots, based on the results of the first experiment, with one RH level tested per ...
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Figure 4: Box-and-whiskers diagrams based on the results of the second experiment with all three levels of RH...
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- Review
- Published 01 Sep 2016
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Figure 1: Occurrence of resilin in insects and crustaceans. Confocal laser scanning micrographs showing a win...
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Figure 2: Distribution, mechanical properties and functional significance of resilin in adhesive tarsal setae...
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Figure 3: Resilin in arthrodial membranes of insects. (A, B) Pretarsus of the drone fly (Eristalis tenax), ve...
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Figure 4: Resilin in the jumping system of the black-and-red froghopper (Cercopis vulnerata). (A–D) Cuticle s...
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Figure 5: Resilin in flight systems of dragonflies. (A) Stereomicrograph depicting a resilin-bearing tendon (...
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Figure 6: Material structure and properties of orthopteran adhesive pads (euplantulae). (A, B) Great green bu...
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Figure 7: Morphology and material composition of mandibular gnathobases of copepods. Confocal laser scanning ...
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Figure 8: Material composition and properties of the ventral abdominal cuticle of females of the common bed b...
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Figure 9: Resilin in mechanoreceptors. (A–F) Confocal laser scanning micrographs showing overlays of differen...
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Figure 10: Resilin in compound eyes. Confocal laser scanning micrographs (maximum intensity projections) depic...
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- Full Research Paper
- Published 22 Jun 2016
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Figure 1: Scanning electron microscopy of frog tongue surfaces. All images are at the same scale. A – Bombina...
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Figure 2: Scanning electron microscopy of the filiform papillae on frog tongues. All images are at the same s...
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Figure 3: Micro-CT images of tissue fragments that were derived from the surfaces of frog tongues. A – Bombin...
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Figure 4: Virtual section through the micro-CT data of tongue tissue fragments at the level of the lacunar la...
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- Review
- Published 06 Mar 2015
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Figure 1: Exemplary copepod species. (a) Female of Calanoides acutus, one of the dominant calanoid copepod sp...
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Figure 2: Mouthparts and different types of mandibular gnathobases of calanoid copepods. (a) Section of the m...
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Figure 3: Mandibular gnathobases of female Centropages hamatus. (a, c–e) Scanning electron micrographs (all c...
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Figure 4: Mandibular gnathobases of female Centropages hamatus. (a–e) Confocal laser scanning micrographs (al...
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Figure 5: Mandibular gnathobases of female Rhincalanus gigas. (a) Scanning electron micrograph showing the di...
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Figure 6: Mandibular gnathobases of female Rhincalanus gigas. Scanning electron micrographs (all caudal view)...
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Figure 7: Muscular system of the anterior part of Centropages hamatus. Confocal laser scanning micrographs (m...
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Figure 8: Faecal pellets from feeding experiments with the diatom species Fragilariopsis kerguelensis and juv...
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- Full Research Paper
- Published 28 Aug 2014
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Figure 1: Phase contrast images of A. castellanii trophozoites on PDMS substrates with different Young’s modu...
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Figure 2: Cell adhesion area of A. castellanii as a function of the Young’s modulus of the PDMS substrates an...
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Figure 3: Average relative counts of projected cell areas of adhering A. castellanii on PDMS substrates and o...
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Figure 4: Numbers (in % of control) of A. castellanii adhering to PDMS substrates after 1 h of incubation. Th...
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- Full Research Paper
- Published 22 Aug 2014
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Figure 1: Scanning electron microscopy picture of a mould of wet human wrist skin.
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Figure 2: 3D surface profiles of a mould of wet human wrist skin obtained by using white light interferometry...
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Figure 3: AFM images of a mould of wet human skin taken at (a) lower and (b) higher resolution.
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Figure 4: The power spectra as a function of the wave vector (log10–log10 scale), based on AFM topography dat...
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Figure 5: The power spectra as a function of the wave vector (log10–log10 scale). The dashed line denoted by b...
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Figure 6: The model of the skin used in the calculations. The elastic modulus of the bulk skin is E1 = 20 kPa...
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Figure 7: The friction coefficient of skin for a glass ball (R = 0.8 cm) at a sliding velocity of 0.8 cm/s an...
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Figure 8: The ratio of the contact area A to the area of the nominal contact area A0 as a function of the low...
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Figure 9: The area of real contact (in thousandths of the nominal contact area, A0) as a function of the aver...
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- Full Research Paper
- Published 21 Jul 2014
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Figure 1: From the snake skin microstructure to the SIMPS. a) Photograph of the California King Snake (Lampro...
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Figure 2: Scheme of the directionality of frictional measurements on polymer surfaces and its geometry. a) Di...
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Figure 3: SEM (a–d) and AFM (e) micrographs of epoxy resin polymer moulds of different types of surfaces used...
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Figure 4: Contact area between sphere and flat elastic surface. F: Normal force. a: indentation radius. d: In...
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Figure 5: Geometric interaction between sphere and PGMS. R: sphere radius. a: indentation radius. d: indentat...
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Figure 6: a) Results of tribological characterization of microstructured polymer surfaces in contact with a s...
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Figure 7: a) Results of tribological measurements of PGMS with different wavelengths (λ) in contact with a gl...
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Figure 8: a) Results of tribological measurements of SIMPS in contact with a glass ball. Black column: smooth...
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- Full Research Paper
- Published 25 Jun 2014
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Figure 1: Schematic of the experimental setup (A). FMS, force measuring system; S, sample; GS, glass slide; O...
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Figure 2: Schematic of the optical path in the RICM at the glass–water–PVS layers. The incoming beam with int...
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Figure 3: Sample 1 in dry contact with glass (A) and in contact with glass underwater (B). Scale bar, 10 µm.
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Figure 4: Pull-off forces, normalized by the average value of the dry state. Two individual MSAMS samples wer...
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Figure 5: Detachment sequences of individual MSAMSs separating from a glass substrate for the sample 1 in the...
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Figure 6: Simulated image of an individual MSAMS partially detached from a glass substrate submerged in water...
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- Full Research Paper
- Published 12 Jun 2014
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Figure 1: Morphology and material composition of adhesive tarsal setae. Ventral part of the second adhesive p...
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Figure 2: Typical configurations of the filamentary structure (setal array) attached to the stiff support (be...
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Figure 3: The same system as presented in Figure 2 shown after detachment from the fractal surface and sufficiently l...
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Figure 4: Time depending vertical forces developed during attachment of initially unperturbed systems to the ...
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Figure 5: Time evolution of arrays {dxj} of distances j = 1,2,…Nx between ends of nearest neighbors dxj = xj+1...
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Figure 6: Statistical analysis of the plots presented in Figure 5. The sequences of the histograms show time evolutio...
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- Full Research Paper
- Published 24 Jan 2014
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Figure 1: From snake skin to SIMPS. a) Photograph of L. g. californiae , the California King Snake; b) SEM mi...
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Figure 2: Results of frictional measurements on periodical groove-like polymer surface – PGMS perpendicular t...
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Figure 3: Results of frictional measurements on periodical groove-like polymer surface – PGMS parallel to the...
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Figure 4: Results of frictional measurements on randomly-rough surfaces – RRS. Left column, frictional signal...
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Figure 5: Frequency analysis of frictional coefficients measured on molds of snake skin (L. g. californiae) -...
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Figure 6: Frequency analysis of the frictional coefficient measured on snake-inspired microstructured polymer...
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Figure 7: Exemplary overview of the topography of the examined polymer surfaces. Left column: SEM-micrographs...
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Figure 8: Scheme of surface geometry and sliding directions of friction measurement, top view (left) and side...
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Figure 9: Example of data analysis of the frictional signal measured on the periodical groove-like polymer su...
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- Full Research Paper
- Published 16 Jun 2011
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Figure 1: Cryo-SEM micrographs of intact Nepenthes alata pitchers (A, D) and SEM micrographs of de-waxed pitc...
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Figure 2: Morphometrical variables and distribution of lunate cells measured in SEM micrograph of a de-waxed ...
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Figure 3: SEM micrographs of the distal part of the tarsus in the Coccinella septempunctata beetle. Inset sho...
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Figure 4: Results of traction force tests with Coccinella septempunctata beetles on different surfaces. (A) E...
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