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Journal articles on the topic 'Skip graphs'

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Published: 4 June 2021

Last updated: 4 February 2022

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Aspnes, James, and Gauri Shah. "Skip graphs." ACM Transactions on Algorithms 3, no. 4 (2007): 37. http://dx.doi.org/10.1145/1290672.1290674.

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FUJITA, SATOSHI, AKIRA OHTSUBO, and MASAYA MITO. "EXTENDED SKIP GRAPHS FOR EFFICIENT KEY SEARCH IN PEER-TO-PEER ENVIRONMENT." Journal of Interconnection Networks 08, no. 02 (2007): 119–32. http://dx.doi.org/10.1142/s021926590700193x.

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In this paper, we propose three techniques to improve the cost/performance of the skip graph that was recently proposed by Aspnes and Shah. The skip graph, which is a distributed data structure that could efficiently support find, insert, and delete operations of a key drawn from a totally ordered set, consists of N nodes each of which is connected with exactly log 2 N nodes determined by a set of random binary vectors called membership vectors. In the following, we will extend the construction of the skip graph in the following two directions: 1) proposal of a subgraph of the skip graph which realizes a graceful degradation of the routing performance when the number of neighbors reduces from log 2 N, and 2) proposal of a supergraph of the skip graph which realizes a significant performance improvement when the number of neighbors increases from log 2 N. The performance of those extended graphs will be evaluated analytically.

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Mendes, Hammurabi, and Cristina G. Fernandes. "A Concurrent Implementation of Skip Graphs." Electronic Notes in Discrete Mathematics 35 (December 2009): 263–68. http://dx.doi.org/10.1016/j.endm.2009.11.043.

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González-Beltrán, A., P. Milligan, and P. Sage. "Range queries over skip tree graphs." Computer Communications 31, no. 2 (2008): 358–74. http://dx.doi.org/10.1016/j.comcom.2007.08.003.

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Aspnes, James, and Udi Wieder. "The expansion and mixing time of skip graphs with applications." Distributed Computing 21, no. 6 (2008): 385–93. http://dx.doi.org/10.1007/s00446-008-0071-3.

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Banno, Ryohei, Tomoyuki Fujino, Susumu Takeuchi, and Michiharu Takemoto. "SFB: a scalable method for handling range queries on Skip Graphs." IEICE Communications Express 4, no. 1 (2015): 14–19. http://dx.doi.org/10.1587/comex.4.14.

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Komori, Yudai, Kazuya Sakai, and Satoshi Fukumoto. "Fast and secure tag authentication in large-scale RFID systems using skip graphs." Computer Communications 116 (January 2018): 77–89. http://dx.doi.org/10.1016/j.comcom.2017.11.008.

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Kan, Chen, Won Hwa Kim, Ling Xu, and Noelle L. Fields. "MISSING VALUE IMPUTATION VIA GRAPH COMPLETION IN QUESTIONNAIRE SCORES FROM PERSONS WITH DEMENTIA." Innovation in Aging 3, Supplement_1 (2019): S972. http://dx.doi.org/10.1093/geroni/igz038.3524.

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Abstract Background: Questionnaires are widely used to evaluate cognitive functions, depression, and loneliness of persons with dementia (PWDs). Successful assessment and treatment of dementia hinge on effective analysis of PWDs’ answers. However, many studies, especially pilot ones, are with small sample sizes. Further, most of them contain missing data as PWDs skip some study sessions due to their clinical conditions. Conventional imputation strategies are not well-suited as bias will be introduced because of insufficient samples. Method: A novel machine learning framework was developed based on harmonic analysis on graphs to robustly handle missing values. Participants were first embedded as nodes in the graph with edges derived by their similarities based on demographic information, activities of daily living, etc. Then, questionnaire scores with missing values were regarded as a function on the nodes, and they were estimated based on spectral analysis of the graph with a smoothness constraint. The proposed approach was evaluated using data from our pilot study of dementia subjects (N=15) with 15% data missing. Result: A few complete variables (binary or ordinal) were available for all participants. For each variable, we randomly removed 5 scores to mimic missing values. With our approach, we could recover all missing values with 90% accuracy on average. We were also able to impute the actual missing values in the dataset within reasonable ranges. Conclusion: Our proposed approach imputes missing values with high accuracy despite the small sample size. The proposed approach will significantly boost statistical power of various small-scale studies with missing data.

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Zhuravkov, Mikhail A., Vladimir P. Savchuk, and Michael A. Nikolaitchik. "Analytical model of skip motion taking into account influence of head and balancing ropes." Journal of the Belarusian State University. Mathematics and Informatics, no. 2 (August 5, 2021): 105–13. http://dx.doi.org/10.33581/2520-6508-2021-2-105-113.

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The article describes an analytical model of mine skip dynamics taking into account the presence of the head and balancing ropes and the existing curvilinearity of the guides. Expressions for the forces acting on the skip from the side of the guides have been constructed. It is shown, that the frequencies of natural vibrations of skip depend on the vertical acceleration and the distance traveled during its lifting. A graph (diagram) of skips vertical speed which observance does not lead to the appearance of skips vertical vibrations due to elasticity of the ropes is developed. An algorithm for finding the forces principal vector and the forces principal moment acting on the skip based on the reading of three accelerometers recording horizontal accelerations of skip during its movement is presented.

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Kaneko, Takeshi, Ryohei Banno, Kazuyuki Shudo, Kota Abe, and Yuuichi Teranishi. "Detouring Skip Graph: Efficient Routing via Detour Routes on Skip Graph Topology." IEEE Open Journal of the Communications Society 1 (2020): 1658–73. http://dx.doi.org/10.1109/ojcoms.2020.3028871.

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Romanovsky, Andrej A., Vladimir A. Kulchitsky, Christopher T. Simons, and Naotoshi Sugimoto. "Methodology of fever research: why are polyphasic fevers often thought to be biphasic?" American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 275, no. 1 (1998): R332—R338. http://dx.doi.org/10.1152/ajpregu.1998.275.1.r332.

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This study explains why the recently described triphasic lipopolysaccharide (LPS) fevers have been repeatedly mistaken for biphasic fevers. Experiments were performed in loosely restrained male Wistar rats with a catheter implanted into the right jugular vein. Each animal was injected with Escherichia coli LPS, and its colonic (Tc) and tail skin temperatures were monitored. The results are presented as time graphs and phase-plane plots; in the latter case the rate of change of Tc is plotted against Tc. At an ambient temperature (Ta) of 30.0°C, the response to the 10 μg/kg dose of LPS was triphasic, as is obvious from time graphs of Tc (3 peaks), time graphs of effector activity (3 waves of tail skin vasoconstriction), and phase-plane plots (3 complete loops). When the Ta was below neutral (22.0°C) or the LPS dose was higher (100 or 1,000 μg/kg), the time graph of Tc did not allow for the reliable detection of all three febrile phases, but the phase-plane plot and time graph of effector activity clearly revealed the triphasic pattern. In a separate experiment, LPS (10 μg/kg) or saline was injected via one of two different procedures: in the first group the injection was performed through the jugular catheter, from outside the experimental chamber; in the second group the same nonstressing injection was combined with opening the chamber and pricking the animal in its lower abdomen with a needle. In the first group the febrile response was obviously triphasic, and none of the phases was due to the procedure of injection per se (injection of saline did not affect Tc). In the second group the fever similarly consisted of three Tc rises, but it might have been readily mistaken for biphasic because the first rise was indistinguishable from stress hyperthermia occurring in the saline-injected (and needle-pricked) controls. We conclude that several methodological factors (dose of LPS, procedure of its injection, and Ta) have contributed, although each in a different way, to the common misbelief that there are only two febrile phases.

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Šťavíková L Polovka, M., B. Hohnová, and J. Zemanová. "Multi-experimental characterisation of grape skin extracts." Czech Journal of Food Sciences 26, Special Issue (2009): S43—S48. http://dx.doi.org/10.17221/245/2008-cjfs.

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Grape skins contain a plenty of different flavonoids, most of them revealing significant antioxidant properties. In this contribution, a complex study is presented of grape skin ethanol extracts, prepared from grape skins of two vine grape varieties, Svatovavřinecké (St. Laurent) and Alibernet. Extracts were prepared from two different amounts of lyophilised grape skin powders using the pressurised fluid extraction (PFE). The antioxidant activity of the extracts was tested by EPR spectroscopy in Fenton system generating reactive radicals (•OH, O<sub–•, •R) followed by spin trapping technique. In addition, radical scavenging activity of the extracts was assessed applying 2,2-diphenyl-1-picrylhydrazyl (•DPPH) free radical and 2,2’-azino-bis-(3-ethylbenzthiazoline-6-sulfonic acid) cation radical (ABTS•>+>) assays. Total phenolic content (TPC) of the individual extracts and their tristimulus colour values (CIE Lab) were evaluated, using an UV-VIS spectrophotometer. All the data obtained were subsequently correlated and discriminated, using the multivariate statistics, involving the canonical discriminant analysis, principal component analysis, and canonical correlation analysis. Results obtained indicated that PFE is a suitable extraction technique, only slightly influencing antioxidant ability as well as composition of the so-prepared extracts. The influence of extraction conditions on the entire monitored characteristics was insignificant.

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McCusker, James P., Michel Dumontier, Rui Yan, Sylvia He, Jonathan S. Dordick, and Deborah L. McGuinness. "Finding melanoma drugs through a probabilistic knowledge graph." PeerJ Computer Science 3 (February 13, 2017): e106. http://dx.doi.org/10.7717/peerj-cs.106.

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Metastatic cutaneous melanoma is an aggressive skin cancer with some progression-slowing treatments but no known cure. The omics data explosion has created many possible drug candidates; however, filtering criteria remain challenging, and systems biology approaches have become fragmented with many disconnected databases. Using drug, protein and disease interactions, we built an evidence-weighted knowledge graph of integrated interactions. Our knowledge graph-based system, ReDrugS, can be used via an application programming interface or web interface, and has generated 25 high-quality melanoma drug candidates. We show that probabilistic analysis of systems biology graphs increases drug candidate quality compared to non-probabilistic methods. Four of the 25 candidates are novel therapies, three of which have been tested with other cancers. All other candidates have current or completed clinical trials, or have been studied in in vivo or in vitro. This approach can be used to identify candidate therapies for use in research or personalized medicine.

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Clouser, Thomas, Mikhail Nesterenko, and Christian Scheideler. "Tiara: A self-stabilizing deterministic skip list and skip graph." Theoretical Computer Science 428 (April 2012): 18–35. http://dx.doi.org/10.1016/j.tcs.2011.12.079.

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Kaur, Upinder, and Pushpa Rani Suri. "Skip Graph in Distributed Environments: A Review." International Journal of Computer Applications Technology and Research 4, no. 5 (2015): 390–94. http://dx.doi.org/10.7753/ijcatr0405.1012.

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Balík, J., and M. Kumšta. "Evaluation of colour content in grapes originating from south Moravia." Czech Journal of Food Sciences 26, Special Issue (2009): S18—S24. http://dx.doi.org/10.17221/240/2008-cjfs.

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The content of total anthocyanins was determined in grapes of nine grapevine (Vitis vinifera L.) varieties belonging to the traditional blue vine varieties grown in south Moravia (Czech Republic) within the period of 2002–2007. Factors of vintage and health condition of grapes were observed. The material balance of the colour substances in grapes was related to the dry matter of skins of berries and that of fresh grapes used as raw material for vinification. The highest content of pigments was found in the variety Neronet (2.15–4.49 g/kg of fresh grapes), which belongs to the so-called Teinturier varieties. Besides the variety Neronet (containing 30.6–73.4 mg/g of dry skin), high contents of total anthocyanins in dry skins were found in the varieties Dornfelder (24.7–59.0 mg/g of dry skin) and Cabernet Moravia (20.1–59.3 mg/g of dry skin). In the long run, the lowest concentrations of pigments were determined in grapes of the varieties Blauer Portugieser (0.51–1.02 g/kg of fresh grapes) and Pinot noir (0.27–0.60 g/kg of fresh grapes). The highest colour capacity was found in grapes harvested in the 2003 and 2006. Contents of anthocyanins were significantly lower (P = 0.001) in damaged grapes. Grapes containing more than 40% of rotten berries revealed in skins and whole grapes only 41% and 55%, respectively, of the colour capacity of the healthy raw material.

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Fazli Adull Manan, Nor, Linasuriani Muhamad, Zurri Adam Mohd Adnan, Mohd Azman Yahaya, and Jamaluddin Mahmud. "Characterisation of Skin Biomechanical Properties via Experiment-Numerical Integration." International Journal of Engineering & Technology 7, no. 4.26 (2018): 205. http://dx.doi.org/10.14419/ijet.v7i4.26.22168.

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By having specific mechanical properties of skin, computational program and analysis become more reliable by showing the real skin behaviour. Up to date, mechanical properties of biological soft tissues (skin) haven’t been accepted solely for official usage. Therefore, characterisation of the skin biomechanical properties might contribute a new knowledge to the engineering and medical sciences societies. This paper highlights the success in characterising the hyperelastic parameters of leporine (rabbit) skin via experimental-numerical integration. A set of five sample of leporine skin were stretched using the conventional tensile test machine to generate the load-displacement graphs. Based on the Ogden’s constitutive equation and Mooney-Rivlin hyperelastic model, a stress-stretch equation was developed and a programme was written using Matlab. By varying the Ogden’s and Mooney-Rivlin’s parameters, the programme was capable of plotting stress-stretch and load-displacement graphs. The graphs that best match the experimental results will constitut to the corresponding coefficient, µ, and α for Ogden Model and C1 and C2 material parameter for Mooney-Rivlin Model that will best describe the behaviour of the leporine skin. The current results show that the Ogden’s coefficient and exponent for the subject was estimated to be (μ = 0.048MPa, α = 7.073) & (μ = 0.020MPa, α = 9.249) for Anterior-Posterior (AP) and Dorsal-Ventral (DV) respectively for Ogden Model. Meanwhile the value for Mooney-Rivlin Model were estimated to be (C1 = 1.271, C2 = 1.868) & (C1 = 1.128, C2 = 1.537) for AP and DV respectively, which is in close agreement to results found by other researchers. Further analyses for comparison could be carried out by developing mathematical model based on other constitutive equation such as Arruda-Boyce and Neo-Hookean. Nevertheless, this study has contributed to the knowledge about skin behaviour and the results are useful for references.

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Hu, Zhilan, Guijin Wang, Xinggang Lin, and Hong Yan. "Skin segmentation based on graph cuts." Tsinghua Science and Technology 14, no. 4 (2009): 478–86. http://dx.doi.org/10.1016/s1007-0214(09)70106-3.

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Hohnová, B., L. Šťavíková, and P. Karásek. "Determination of anthocyanins in red grape skin by pressurised fluid extraction and HPLC." Czech Journal of Food Sciences 26, Special Issue (2009): S39—S42. http://dx.doi.org/10.17221/243/2008-cjfs.

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Grape anthocyanins not only play an important role in the colour quality of red wines but they also have many beneficial effects on human health, e.g., reduction of coronary heart disease incidence, or anticarcinogenic and antioxidant properties. Therefore, a rapid and efficient extraction technique prior to chromatographic analysis is of primary interest. Pressurised Fluid Extraction (PFE) presents a fast, effective, and environmentally friendly extraction method for the analysis of red grape pigments. In this study, PFE in static mode was utilised for the extraction of 3-monoglucoside anthocyanins from the grape skin of highly pigmented variety Alibernet. The effects of the type of the extraction solvent and the extraction temperature were studied. The identification of the above given compounds were performed by high-performance liquid chromatography with diode array detection (HPLC-DAD) based on Synergi C-12 column separation. The wavelength was set at 520 nm. All compounds were determined and identified during 50 minutes.

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Khan, Masood, Mehwish Manzur, and Masood Rahman. "Boundary-layer flow and heat transfer of cross fluid over a stretching sheet." Thermal Science 23, no. 1 (2019): 307–18. http://dx.doi.org/10.2298/tsci160919111k.

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The current study is a pioneering work in presenting the boundary-layer equations for the 2-D flow and heat transfer of the Cross fluid over a linearly stretching sheet. The system of PDE is turned down into highly non-linear ODE by applying suitable similarity transformations. The stretching sheet solutions are presented via. a numerical technique namely the shooting method and graphs are constructed. The impact of the emerging parameters namely the power-law index, n, the local Weissenberg number, We, and the Prandtl number on the velocity and temperature fields are investigated through graphs. The numerical values of the local skin friction coefficient and the local Nusselt number are also presented in tabular form. Additionally, the graphs are sketched for the local skin friction coefficient and the local Nusselt number. It is observed that with growing values of the local Weissenberg number the velocity profiles exhibited a decreasing trend while opposite behavior is seen for the temperature field. Further, comparisons are made with previously available literature for some limiting cases and an excellent agreement is achieved.

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BANNO, Ryohei, and Kazuyuki SHUDO. "An Efficient Routing Method for Range Queries in Skip Graph." IEICE Transactions on Information and Systems E103.D, no. 3 (2020): 516–25. http://dx.doi.org/10.1587/transinf.2019fcp0008.

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Hassanzadeh-Nazarabadi, Yahya, Alptekin Küpçü, and Öznur Özkasap. "Interlaced: Fully decentralized churn stabilization for Skip Graph-based DHTs." Journal of Parallel and Distributed Computing 149 (March 2021): 13–28. http://dx.doi.org/10.1016/j.jpdc.2020.10.008.

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Celikkanat, Abdulkadir, and Fragkiskos D. Malliaros. "Exponential Family Graph Embeddings." Proceedings of the AAAI Conference on Artificial Intelligence 34, no. 04 (2020): 3357–64. http://dx.doi.org/10.1609/aaai.v34i04.5737.

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Representing networks in a low dimensional latent space is a crucial task with many interesting applications in graph learning problems, such as link prediction and node classification. A widely applied network representation learning paradigm is based on the combination of random walks for sampling context nodes and the traditional Skip-Gram model to capture center-context node relationships. In this paper, we emphasize on exponential family distributions to capture rich interaction patterns between nodes in random walk sequences. We introduce the generic exponential family graph embedding model, that generalizes random walk-based network representation learning techniques to exponential family conditional distributions. We study three particular instances of this model, analyzing their properties and showing their relationship to existing unsupervised learning models. Our experimental evaluation on real-world datasets demonstrates that the proposed techniques outperform well-known baseline methods in two downstream machine learning tasks.

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Crupi, Pasquale, Giambattista Debiase, Gianvito Masi, Francesca Mangione, and Luigi Tarricone. "Harpin Proteins Improve Bioactive Compounds Content in Crimson Seedless Table Grape." Open Bioactive Compounds Journal 7, no. 1 (2019): 1–7. http://dx.doi.org/10.2174/1874847301907010001.

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Background: Frequently, in warm climates such as Mediterranean areas, a red-pink table grape ‘Crimson Seedless’ does not reach a good berry skin color; and an acceptable anthocyanin bioactive compounds content, responsible for the red color of berries. Harpin proteins are biotechnologically developed bio-activators that, if applied on plants during the growing period, trigger the expression of hundreds of genes among which those associated with the biosynthesis of bioactive compounds (such as anthocyanins). Aim: This research aimed at using harpin proteins to test their suitability in improving the grape skin color. Methods and Materials: Beta-harpin protein 1% p.a. (400 g/Ha) was applied to ‘Crimson Seedless’ vines three times at the beginning of veraison. Six samplings were carried out for both the treated and control grapes until commercial harvest. In the skin extracts, total and individual anthocyanins content was determined by UV-Vis and RP-HPLC-DAD analyses, respectively. Results: The collected results confirmed that the application of harpin proteins effectively stimulated the anthocyanin biosynthesis leading to make peonidin-3O-glucoside, cyanidin-3O-glucoside, and malvidin-3O-glucoside values from 2 to almost 10 folds higher in treated grapes than in control grapes (P < 0.05). Conclusion: Actually, harpin proteins improved the color of the berry skin, leading to a significantly higher concentration of anthocyanins in treated than in control grapes.

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Malik, M. Y., Arif Hussain, T. Salahuddin, and M. Awais. "Numerical solution of MHD Sisko fluid over a stretching cylinder and heat transfer analysis." International Journal of Numerical Methods for Heat & Fluid Flow 26, no. 6 (2016): 1787–801. http://dx.doi.org/10.1108/hff-06-2015-0211.

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Purpose – The purpose of this paper is to examine the Sisko fluid model over a stretching cylinder with heat transfer and magnetohydrodynamics. Design/methodology/approach – The boundary layer approach is employed to simplify the governing equations. Suitable similarity transformations are used to transform the governing partial differential equations into ordinary differential equations. In order to solve this system of ordinary differential equations numerically, shooting method in conjunction with Runge-Kutta-Fehlberg method is used. Findings – The effects of physical parameters involved in velocity and temperature profiles are shown through graphs. It is observed that Sisko fluid parameter and curvature parameter enhances fluid velocity while motion of fluid is retarded by increasing magnetic field strength. Additionally temperature of fluid raise with curvature parameter while it fall down for larger values of Prandtl number. Skin friction coefficient and Nusselt number are computed and presented in graphs and tables for further analysis. It can be seen that curvature parameter increases both skin friction and Nusselt number while magnetic field and Prandtl number decayed skin friction and Nusselt number, respectively. Also Sisko parameter enlarges skin friction coefficient. The accuracy of solution is verified by comparing it with existing literature. Originality/value – The computed results are interested for industrial and engineering processes, especially in cooling of nuclear reactors.

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Bindon, Keren A., S. Hadi Madani, Phillip Pendleton, Paul A. Smith, and James A. Kennedy. "Factors Affecting Skin Tannin Extractability in Ripening Grapes." Journal of Agricultural and Food Chemistry 62, no. 5 (2014): 1130–41. http://dx.doi.org/10.1021/jf4050606.

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Malik, M. Y., A. Hussain, T. Salahuddin, M. Awais, and S. Bilal. "Numerical Solution of Sisko Fluid Over a Stretching Cylinder and Heat Transfer with Variable Thermal Conductivity." Journal of Mechanics 32, no. 5 (2016): 593–601. http://dx.doi.org/10.1017/jmech.2016.8.

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AbstractPresent paper addresses the numerical study of Sisko fluid model over stretching cylinder with variable thermal conductivity. The governing equations are simplified by incorporating the boundary layer approximations. After employing suitable similarity transformations partial differential equations are reduced to ordinary differential equations. To obtain numerical solution shooting method in conjunction with Runge-Kutta-Fehlberg method is used. For the analysis of model, variations due to different physical parameters involved in momentum and heat equations are reflected through graphs. Also, the effects of physical parameters on skin-friction coefficient and Nusselt number are represented through graphs as well as tables.

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Calderón, Antonio A., Jose M. Zapata, Romualdo Muñoz, and A. Ros Barceló. "Localization of Peroxidase in Grapes using Nitrocellulose Blotting of Freezing/Thawing Fruits." HortScience 28, no. 1 (1993): 38–40. http://dx.doi.org/10.21273/hortsci.28.1.38.

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A technique has been developed to study the histochemical localization of peroxidase in Vitis vinifera by blotting freezing/thawing tissue sections on nitrocellulose membranes. After being stained with 4-methoxy- α -naphthol and H2O2, peroxidase-mediated reaction products in mature `Gamay' grapes were seen principally in the skin and, to a lesser extent, the pericarp, where discrete areas of reaction products were located in the vascular bundles. However, for immature `Gamay' and `Grenache' grapes, peroxidase activity in the skin was low and similar to that found in the pericarp. With this technique, fruit vascular bundle structure was preserved. The reliability of the technique in the histochemical localization of peroxidase in grapes was confirmed by fractionation and determining the peroxidase activity in the various tissues.

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Radjabov, Abdurahman, Matkarim Ibragimov, and Nodir Eshpulatov. "The Study of the Electrical Conductivity of Apples and Grapes as an Object of Electrical Processing." E3S Web of Conferences 226 (2021): 00002. http://dx.doi.org/10.1051/e3sconf/202122600002.

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Experimental studies of the electrical conductivity of whole berries, peels, and pulp of apples and grapes were carried out according to the methods that the measurement voltage should not exceed the threshold and the measurement time should be minimal, and mechanical damage to the cells during contact with the electrodes was not allowed. To study the electrical conductivity (electrical resistance) of apples, grapes, and their constituent elements, a device is developed that represents a three–electrode system. The study of the specific volume resistance of the pulp of apple and grape. Development of a methodology for a three–electrode system to determine the electrical conductivity of the pulp and skin of fruits and grapes. Three–electrode system showed sufficient accuracy for apple and grape the electrical conductivity. The volumetric resistance of the skin was much greater than the pulp. The tissue resistance of fruits and grapes with an increase in the frequency of the measuring current decreases exponentially.

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Anter, Jaouad, Noriluz de Abreu-Abreu, Zahira Fernández-Bedmar, Myriam Villatoro-Pulido, Ángeles Alonso-Moraga, and Andrés Muñoz-Serrano. "Targets of Red Grapes: Oxidative Damage of DNA and Leukaemia Cells." Natural Product Communications 6, no. 1 (2011): 1934578X1100600. http://dx.doi.org/10.1177/1934578x1100600115.

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Vitis vinifera is a widespread crop all over the world. The biophenols present in grapes have a remarkable influence on wine quality and also confer potential health-protecting properties to this fruit. The aim of the present work was to assess the beneficial properties of skin, seeds and pulp of red table grapes (RTG) ( Vitis vinifera, Palieri Cadiz variety). Two potential beneficial activities of red table grapes (RTG) were analyzed: (i) The maintenance of genomic stability studying their genotoxic/antigenotoxic effects, and (ii) the in vitro cytotoxic effect against tumor cells of RTG components. The genotoxic and/or antigenotoxic effect was measured applying the somatic mutation and recombination test on wing imaginal discs of Drosophila melanogaster. The cytotoxic effect was monitored using the HL60 human leukemia model to evaluate the antiproliferative potential of the different parts of RTG. The three major parts (skin, seeds and pulp) are not genotoxic. When antigenotoxicity assays were performed using hydrogen peroxide as the oxidative genotoxin, skin, seed and pulp exerted a desmutagenic effect, with seeds and skin showing the most potent effect. The cytotoxicity tests using HL60 cells indicated that only skin and pulp fractions are able to inhibit the tumor growth, with skin having the lowest IC50 (1.8 mg/mL versus 8 mg/mL of pulp). These results suggest that RTG are potent anti-mutagens that protect DNA from oxidative damage as well as being cytotoxic toward the HL60 tumor cell line.

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Li, Sijing, Keren Bindon, Susan Bastian, and Kerry Wilkinson. "Impact of Commercial Oenotannin and Mannoprotein Products on the Chemical and Sensory Properties of Shiraz Wines Made from Sequentially Harvested Fruit." Foods 7, no. 12 (2018): 204. http://dx.doi.org/10.3390/foods7120204.

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The tannin and polysaccharide profiles and therefore sensory properties of wine are influenced by fruit maturity at harvest, and practices employed during winemaking. This study investigated the extent to which commercial winemaking supplements (skin and seed tannins, and mannoprotein (MP)) can enhance the mouthfeel properties of red wine, in particular, wine made from grapes harvested before commercial ripeness (early-harvest). Supplements were added to wines made from Shiraz grapes harvested at 20.8 and 24.5 °Brix. The chemical composition and mouthfeel properties of wines were then determined by high performance liquid chromatography and descriptive analysis (DA), respectively. Wines made from riper grapes had higher levels of tannin than wines made from early-harvest grapes, but similar polysaccharide levels were observed. The addition of seed oenotannin yielded higher tannin levels than addition of skin oenotannin, particularly for wines made from early-harvest grapes. The DA panel perceived sensory differences between H1 and H2 wines, but could not perceive any effect of supplementation on wine mouthfeel properties, with the exception of a minor increase in sweetness, attributed to mannoprotein addition to H1 wines, even when MP was added to wines at 2.5 times the level recommended for use in Australia.

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Lv, Chongshan, Ting Zhang, and Chengyuan Liu. "An Improved Otsu’s Thresholding Algorithm on Gesture Segmentation." Journal of Advanced Computational Intelligence and Intelligent Informatics 21, no. 2 (2017): 247–50. http://dx.doi.org/10.20965/jaciii.2017.p0247.

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In gesture recognition systems, segmenting gestures from complex background is the hardest and the most critical part. Gesture segmentation is the prerequisite of following image processing, and the result of segmentation has a direct influence on the result of gesture recognition. This paper proposed an algorithm of adaptive threshold gesture segmentation based on skin color. First of all, the image should be transformed from RGB color space to YCbCr color space. After eliminating luminance component Y, similarity graph of skin color will be obtained from the Gaussian model. Then Otsu adaptive threshold algorithm is used to carry out binary processing for the similarity graph of skin color. After the segmentation of skin color regions, the morphology method is used to process binary image for determining the location of hands. Experimental results show that the detailed segmentation of skin color using the dynamic-adaptive threshold can improve noise resistance and can produce better results.

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Hernández-Jiménez, Alberto, Encarna Gómez-Plaza, Adrián Martínez-Cutillas, and James A. Kennedy. "Grape Skin and Seed Proanthocyanidins from Monastrell × Syrah Grapes." Journal of Agricultural and Food Chemistry 57, no. 22 (2009): 10798–803. http://dx.doi.org/10.1021/jf903465p.

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Peppi, M. Cecilia, Matthew W. Fidelibus, and Nick Dokoozlian. "Abscisic Acid Application Timing and Concentration Affect Firmness, Pigmentation, and Color of `Flame Seedless' Grapes." HortScience 41, no. 6 (2006): 1440–45. http://dx.doi.org/10.21273/hortsci.41.6.1440.

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Poor coloration of red grapes grown in warm regions is a frequent problem that decreases production efficiency. Most table grape growers use ethephon to improve color, but its influence on color development is erratic, and it may reduce berry firmness. Application of S-abscisic acid (ABA) to grapes can increase the anthocyanins in their skins, but no protocols have been established regarding its potential commercial use. Therefore, we evaluated the effects of ABA and ethephon treatments on fruit quality characteristics, including those related to firmness and color, on `Flame Seedless' grapes (Vitis vinifera L.) in several experiments over three consecutive seasons. Abscisic acid had few effects on berry weight or juice composition, but it increased berry softening and skin anthocyanin concentrations. The effect of ABA on berry firmness was similar to ethephon. With respect to skin anthocyanin concentration and fruit color characteristics, 300 mg·L–1 ABA applied at veraison was superior to the other ABA concentrations and to ethephon applied at any of the times tested. Moreover, any concentration of ABA between 75 and 300 mg·L–1 applied after veraison improved color better than ethephon applied at the same time. There was a highly significant inverse curvilinear relationship between skin anthocyanin concentration and the lightness and hue of the berries. Anthocyanin concentrations between 0.01 and 0.04 mg·cm–2 had little effect on berry lightness and hue, so researchers should consider measuring color, not just anthocyanins, when evaluating the quality of red table grapes.

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Dildar, Mehwish, Shumaila Akram, Muhammad Irfan, et al. "Skin Cancer Detection: A Review Using Deep Learning Techniques." International Journal of Environmental Research and Public Health 18, no. 10 (2021): 5479. http://dx.doi.org/10.3390/ijerph18105479.

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Skin cancer is one of the most dangerous forms of cancer. Skin cancer is caused by un-repaired deoxyribonucleic acid (DNA) in skin cells, which generate genetic defects or mutations on the skin. Skin cancer tends to gradually spread over other body parts, so it is more curable in initial stages, which is why it is best detected at early stages. The increasing rate of skin cancer cases, high mortality rate, and expensive medical treatment require that its symptoms be diagnosed early. Considering the seriousness of these issues, researchers have developed various early detection techniques for skin cancer. Lesion parameters such as symmetry, color, size, shape, etc. are used to detect skin cancer and to distinguish benign skin cancer from melanoma. This paper presents a detailed systematic review of deep learning techniques for the early detection of skin cancer. Research papers published in well-reputed journals, relevant to the topic of skin cancer diagnosis, were analyzed. Research findings are presented in tools, graphs, tables, techniques, and frameworks for better understanding.

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Plaza, E. G., R. Jurado, J. A. Iniesta, and A. B. Bautista-Ortín. "High power ultrasounds: A powerful, non-thermal and green technique for improving the phenolic extraction from grapes to must during red wine vinification." BIO Web of Conferences 12 (2019): 02001. http://dx.doi.org/10.1051/bioconf/20191202001.

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Wine color is one of the main organoleptic characteristics influencing its quality. It is of especial interest in red vinifications due to the economic resources that wineries have to invest for the extraction of the phenolic compounds. To increase this extraction, some chemical (maceration enzymes) or physical technologies (thermovinification, criomaceration, flash-expansion) can be applied. In this work, the results of the application of high power ultrasounds to the crushed grapes to increase the extraction of phenolic compounds are presented. Crushed grapes (400 kg) from the 2017 harvest were treated with ultrasound, and three different lengths of skin maceration period (2, 3 or 7 days) and the results were compared with a control vinification, where grapes were not subjected to any treatment and were skin macerated during 7 days. The wine chromatic characteristics and the individual phenolic compounds were followed during all the maceration period, at the end of alcoholic fermentation and after bottle storage. The wines made with ultrasound treated grapes presented differences with control wine, especially as regard color and total phenol and tannin content, the wines with three days of maceration time presenting similar chromatic characteristics than control wines with 7 days of maceration time.

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Akbar, Sobia, and Azad Hussain. "The Influences of Squeezed Inviscid Flow between Parallel Plates." Mathematical Problems in Engineering 2021 (April 22, 2021): 1–9. http://dx.doi.org/10.1155/2021/6647708.

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Purpose. The main purpose of this study is to investigate the unsteady flow behavior of second-grade inviscid fluid between parallel plates. The effects on the flow are explored through modeling of continuity, momentum, and energy equations. Graphical and tabular exploration has been made to analyze the impact of several influential variables on the dimensionless temperature and velocity profiles. Three-dimensional graphs and stream lines are also mentioned. Design/Approach/Methodology. The governing equations have been metamorphosed into nonlinear ordinary differential equations by using suitable transformation which is the main focus of the study. To approach the solution of the problem numerically, we have used the numerical method such as shooting technique along with Runge–Kutta method is implemented. Findings. The graphs for the squeezing number, Prandtl number, and Eckert number are decreasing by increasing the values of these parameters. The graphs of skin friction coefficient and Nusselt number are increasing by changing the values of both parameters. Originality/Value. The significances of an unsteady squeezed flow of a nonviscous second-grade fluid between parallel plates by using boundary layer phenomenon are discussed.

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Ferreira, Vicente, and Ricardo Lopez. "The Actual and Potential Aroma of Winemaking Grapes." Biomolecules 9, no. 12 (2019): 818. http://dx.doi.org/10.3390/biom9120818.

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This review intends to rationalize the knowledge related to the aroma of grapes and to the aroma of wine with specific origin in molecules formed in grapes. The actual flavor of grapes is formed by the few free aroma molecules already found in the pulp and in the skin, plus by those aroma molecules quickly formed by enzymatic/catalytic reactions. The review covers key aroma components of aromatic grapes, raisins and raisinized grapes, and the aroma components responsible from green and vegetal notes. This knowledge is used to explain the flavor properties of neutral grapes. The aroma potential of grape is the consequence of five different systems/pools of specific aroma precursors that during fermentation and/or aging, release wine varietal aroma. In total, 27 relevant wine aroma compounds can be considered that proceed from grape specific precursors. Some of them are immediately formed during fermentation, while some others require long aging time to accumulate. Precursors are glycosides, glutathionyl and cysteinyl conjugates, and other non-volatile molecules.

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Iglesias-Carres, Lisard, Anna Mas-Capdevila, Lucía Sancho-Pardo, et al. "Optimized Extraction by Response Surface Methodology Used for the Characterization and Quantification of Phenolic Compounds in Whole Red Grapes (Vitis vinifera)." Nutrients 10, no. 12 (2018): 1931. http://dx.doi.org/10.3390/nu10121931.

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Scientific research has focused on the characterization of bioactive polyphenols from grape seeds and skins, and the pulp has often been overlooked. However, since the beneficial properties of grapes are associated with the consumption of whole fruit, a full extraction and posterior characterization of the phenolic compounds in whole grapes is required to identify the involved bioactive compounds. Such methodologies are not currently available for the whole edible parts of red grapes. This study aimed to determine the best polyphenol extraction conditions of whole red grapes, and apply the method to characterize and quantify the polyphenol composition of three different grapes. The optimized conditions were 80 mL/g, 65% methanol (1% formic acid), 72 °C, and 100 minutes under agitation of 500 rpm. Also, methanol and ethanol were compared as extraction solvents, and methanol achieved statistically higher extraction rates for anthocyanins. The results of this work suggest a higher quantification of phenolic compounds when red grapes are analyzed whole, including the seeds, pulp, and skin.

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Escott, Carlos, Carmen López, Iris Loira, et al. "Improvement of Must Fermentation from Late Harvest cv. Tempranillo Grapes Treated with Pulsed Light." Foods 10, no. 6 (2021): 1416. http://dx.doi.org/10.3390/foods10061416.

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Pulsed light irradiation is a nonthermal technology currently used for the elimination of pathogens from a diverse range of food products. In the last two decades, the results obtained using PL at laboratory scale are encouraging wine experts to use it in the winemaking industry. PL can reduce native yeast counts significantly, which facilitates the use of starter cultures, reducing SO2 requirements at the same time. In this experimental set up, Tempranillo grapes were subjected to pulsed light treatment, and the fermentative performance of non-Saccharomyces yeasts belonging to the species Schizosaccharomyces pombe, Lachancea thermotolerans, Torulaspora delbrueckii, Metschnikowia pulcherrima and Hanseniaspora vineae was monitored in sequential fermentations against spontaneous fermentation and pure culture fermentation with the species Saccharomyces cerevisiae. The experimental analyses comprised the determination of anthocyanin (High performance liquid chromatography with photodiode array detector—HPLC-DAD), polyphenol index and colour (Ultraviolet-visible spectroscopy—UV-Vis spectrophotometer), fermentation-derived volatiles (Gas chromatography with flame ionization detector—GC-FID), oenological parameters (Fourier transform Infrared spectroscopy—FT-IR) and structural damage of the skin (atomic force microscopy—AFM). The results showed a decrease of 1.2 log CFU/mL yeast counts after pulsed light treatment and more rapid and controlled fermentation kinetics in musts from treated grapes than in untreated samples. The fermentations done with treated grapes allowed starter cultures to better implant in the must, although a larger anthocyanin loss (up to 93%) and an increase in hue values (1 unit) towards more yellow hues were observed for treated grapes. The development of biomass was larger in musts from treated grapes. The profile of volatile compounds and oenological parameters reveals that fermentations carried out with untreated grapes are prone to deviations from native microbiota (e.g., production of lactic acid). Finally, no severe damage on the skin was observed with the AFM on treated grapes.

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Bogomolov, Artemii. "Comparative analysis of skin prick test with immunoblotting of different manufacturers in the context of determining the sensitization to birch allergen in patients with respiratory allergic diseases." OTORHINOLARYNGOLOGY, no. 6(2) 2019 (March 30, 2020): 20–27. http://dx.doi.org/10.37219/2528-8253-2019-6-20.

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The aim of the study was to evaluate the diagnostic parameters of various methods for determining birch allergen sensitization in patients with respiratory allergic diseases – allergic rhinitis and bronchial asthma. Materials and methods: During the study, 88 patients with allergic rhinitis and/or atopic asthma were examined with three different methods of specific allergic diagnosis (in vivo and in vitro) according to the recommendations of the ethics committee of the Pirogov Vinnitsa National Medical University, all of which were out of acute. Inclusion criteria were a diagnosis of allergic rhinitis (both intermittent and persistent) and/or atopic asthma. The pre-test was conducted according to the classic test method according to the normative documents with commercial allergen extracts. Western blots for the determination of IgE levels were performed using RIDA AllergyScreen test systems (R-Biopharm AG, Darmstadt, Germany) and Euroline (Euroimmun). Results and discussion: Systematic error of measurement results of immunoblot of different manufacturers is equal to 2.27 ku/l, which indicates the presence of a systematic difference. The distribution graph corresponds to the type of absolute systematic error graphs. The standard deviation of the difference was 11.28, which is significantly compared to the values themselves. Thus, the results of the two systems for the determination of specific IgE for birch allergen by the Rida AllergyScreen and Euroline methods are not well matched due to systematic divergence of indicators. There is a good agreement between the results of skin testing with birch allergens and the detection of specific IgE by the Rida AllergyScreen test, and between the results of skin testing with birch allergen and the detection of specific IgE by the Euroline method, there is a moderate agreement between the results.

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Hayat, Tasawar, Ikram Ullah, Ahmed Alsaedi, and Hamed Alsulami. "Numerical Simulation for Radiated Flow in Rotating Channel with Homogeneous-Heterogeneous Reactions." Journal of Non-Equilibrium Thermodynamics 44, no. 4 (2019): 355–62. http://dx.doi.org/10.1515/jnet-2018-0102.

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Abstract The present work models MHD three-dimensional flow in a rotating channel. The energy expression is characterized by heat generation/absorption and radiation effects. Homogeneous-heterogeneous features are also accounted for. The obtained non-dimensional systems are numerically computed via the NDSolve based Shooting technique. Graphs are plotted to visualize the impact of various influential variables on velocity, temperature and concentration. In addition, skin friction and the Nusselt number are numerically estimated. Here temperature increases for increasing estimations of heat generation/absorption and radiation parameters. Furthermore, skin friction is reduced in the case of large Reynold number and rotation parameter.

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Maza, Marcos Andrés, Juan Manuel Martínez, Guillermo Cebrián, et al. "Evolution of Polyphenolic Compounds and Sensory Properties of Wines Obtained from Grenache Grapes Treated by Pulsed Electric Fields during Aging in Bottles and in Oak Barrels." Foods 9, no. 5 (2020): 542. http://dx.doi.org/10.3390/foods9050542.

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The evolution of polyphenolic compounds and sensory properties of wines obtained from Grenache grapes, either untreated or treated with pulsed electric fields (PEF), in the course of bottle aging, as well as during oak aging followed by bottle aging, were compared. Immediately prior to aging in bottles or in barrels, enological parameters that depend on phenolic extraction during skin maceration were higher when grapes had been treated with PEF. In terms of color intensity, phenolic families, and individual phenols, the wine obtained with grapes treated by PEF followed an evolution similar to untreated control wine in the course of aging. Sensory analysis revealed that the application of a PEF treatment resulted in wines that are sensorially different: panelists preferred wines obtained from grapes treated with PEF. Physicochemical and sensory analyses showed that grapes treated with PEF are suitable for obtaining wines that require aging in bottles or in oak barrels.

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Ray, R. N., A. Samad, and T. K. Chaudhury. "An Exact Periodic Solution of a Hydromagnetic Flow of an Oldroyd Fluid in a Channel." Journal of Applied Mechanics 66, no. 4 (1999): 974–77. http://dx.doi.org/10.1115/1.2791807.

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The unsteady flow of a conducting Oldroyd fluid between two parallel plates, one of which is at rest and the other oscillating in its own plane with a constant mean velocity, has been investigated. Using separation of variables an exact periodic solution for the problem is obtained. Effects of viscoelastic parameters on velocity gradient, skin friction amplitude, and phase angle of the flow are discussed with graphs.

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Ogombo, Concilia Magaya, Maximilla Wanzala, and Tom Were. "Community attitude and practice towards skin disease prevention in a rural community in Busia County." International Journal Of Community Medicine And Public Health 8, no. 6 (2021): 2718. http://dx.doi.org/10.18203/2394-6040.ijcmph20211974.

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Background: Skin conditions were the fourth leading cause of nonfatal burden globally, expressed as years lost due to disability and eighteenth leading cause of health burden worldwide, expressed as disability adjusted life years. From Busia County health sector strategic and investment plan 2018-2023 report, skin diseases was third leading cause of morbidity in the county with 6.5%. Skin diseases, though very common in many developing countries, are not often regarded as a significant health problem even though serious diseases may be heralded by skin changes.Methods: A cross sectional descriptive study design was adopted. Data was collected using questionnaires; it was entered in a password protected excels spreadsheets with accessibility limited to the research investigator; data analysis was done using statistical package for social science (SPSS) version 23; and presented in bar graphs and tables.Results: It was revealed that 68.4% (N=273) had poor attitude towards skin diseases; 58.6% (N=234) of the respondents had poor practice towards prevention of skin diseases; and there was a significant association between community attitude towards skin diseases and practice towards skin diseases prevention.Conclusions: The community practice towards prevention of skin diseases is predicted by the community attitude towards skin diseases.

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Wang, Kunshan, Stephen M. Blackburn, Antony L. Hosking, and Michael Norrish. "Hop, Skip, & Jump." ACM SIGPLAN Notices 53, no. 3 (2018): 1–16. http://dx.doi.org/10.1145/3296975.3186412.

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Rathjen, H., and SP Robinson. "Characterisation of a Variegated Grapevine Mutant Showing Reduced Polyphenol Oxidase Activity." Functional Plant Biology 19, no. 1 (1992): 43. http://dx.doi.org/10.1071/pp9920043.

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Fruit of the variegated grapevine mutant Bruce's Sport is known to dry to a lighter colour than other seedless varieties. The biochemical basis for this decreased browning capacity was investigated. Bruce's Sport grapes had similar levels of phenolic compounds to Sultana H5. Activity of the enzyme polyphenol oxidase (PPO EC 1.10.3.1) in mature berries of Bruce's Sport was only 20-30% of that in Sultana H5. No evidence of inhibitors or activators of PPO was found when berry extracts were mixed. PPO activity on a fresh weight basis was highest in the grape seed traces, intermediate in the skin, and lowest in the pulp in both varieties. In each tissue type, however, PPO activity in Bruce's Sport was less than 25% of that in Sultana H5. On a fresh weight basis, PPO activity in Sultana H5 berries was high at fruit set then declined as the berry developed. PPO activity per berry increased from fruit set until veraison, then remained constant. PPO activity showed similar changes during development of Bruce's Sport berries but was lower than in Sultana H5 at all stages. The Bruce's Sport grapes were variegated and the green regions of skin had similar PPO activity to Sultana H5 skin while the white regions had very low activity. Only the green regions of skin of Bruce's Sport grapes stained for PPO activity with endogenous or exogenously applied phenolic substrates. The decreased browning in this grapevine mutant apparently results from decreased levels of PPO activity in the white regions of the berry, possibly arising from a disruption in chloroplast development.

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Mucalo, Ana, Edi Maletić, and Goran Zdunić. "Extended Harvest Date Alter Flavonoid Composition and Chromatic Characteristics of Plavac Mali (Vitis vinifera L.) Grape Berries." Foods 9, no. 9 (2020): 1155. http://dx.doi.org/10.3390/foods9091155.

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This study delivers a comprehensive flavonoid fingerprint profile, physiochemical and external color characterization of Plavac Mali grapes through four harvest dates at two distinct vineyards (Split and Zadar) in the Eastern Adriatic region. The experimental harvest lasted 56 days, at total soluble solids content from 18.4 to 22.4°Brix in Split and 16.8 to 20.4°Brix in Zadar. Patterns of 27 skin and seed flavonoid compounds at each location indicate unique flavonoid composition of berries at each harvest date. Extended harvest increased six compounds in skin with maximum values of main anthocyanin malvidin-3-O-glucoside in H3 (4406.6 and 6389.5 mg kg−1, Split and Zadar, respectively) followed by a decrease in October. Peak values of seed and skin catechins and galloylated flavan-3-ol subunits are seen in H1 and H2 at Split, while constantly high values are reported in the case of Zadar, with an incoherent pattern of those in skin extracts. Minimal values of epigallocatechin were detected with an extended harvest date at both locations. Berries of extended harvest dates underwent colorimetric improvements, trough decrease in L*, a*, b* and C characteristics and increase in skin color index for red grapes CIRG. The extended harvest date promotes flavonoid composition, and improves the quality of Plavac Mali grape berries.

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Hussain, Azad, Sobia Akbar, Lubna Sarwar, and Sohail Nadeem. "Probe of Radiant Flow on Temperature-Dependent Viscosity Models of Differential Type MHD Fluid." Mathematical Problems in Engineering 2020 (November 6, 2020): 1–16. http://dx.doi.org/10.1155/2020/2927013.

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This paper numerically investigates the combined effects of the radiation and MHD on the flow of a viscoelastic Walters’ B liquid fluid model past a porous plate with temperature-dependent variable viscosity. To study the effects of variable viscosity on the fluid model, the equations of continuity, momentum with magnetohydrodynamic term, and energy with radiation term have been expanded. To understand the phenomenon, Reynold’s model and Vogel’s model of variable viscosity are also incorporated. The dimensionless governing equations are two-dimensional coupled and highly nonlinear partial differential equations. The highly nonlinear PDEs are transferred into ODEs with the assistance of suitable transformations which are solved with the help of numerical techniques, namely, shooting technique coupled with Runge–Kutta method and BVP4c solution method for the numerical solutions of governing nonlinear problems. Viscosity is considered as a function of temperature. Skin friction coefficient and Nusselt number are investigated through tables and graphs in the present probe. The behavior of emerging parameters on the velocity and temperature profiles is studied with the help of graphs. For Reynold’s model, we have shrinking stream lines and increasing three-dimensional graphs. γ and Pr are reduced for both models.

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SALISTEAN, Adrian, Carmen MIHAI, Irina CRISTIAN, Daniela FARIMA, and Cristina PIROI. "FABRIC FOR SINGLE SKIN TEXTILE WING." TEXTEH Proceedings 2019 (November 5, 2019): 220–23. http://dx.doi.org/10.35530/tt.2019.09.

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The fabrics used to make parachutes and paragliders must have the several specific characteristics: the mass of fabric per unit of surface must be low while the other physical- mechanical characteristics (the axial breaking strength load, the relative and absolute elongation, the tear resistance of the fabric and the assemblies, air permeability) must be at a maximum. The paper deals with the analysis of qualitative aspects of several parachute fabrics that are used as a baseline in the development of a novel fabric. The results of experiments have materialized in statistical data, diagrams and graphs and their interpretation leads to the determination of the fabric variant that best meets the requirements of the destination. The destination is a patent pending inflatable wing design that utilizes a single skin construction and solid reinforcements in the sewing for shape stability. It is worth noting that the experimental results were compared with values indicated in specific international testing norms.

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