Journal articles: 'Boat Docking'

1

Ulfsdotter, Boel. "feature article: (Not) Docking the Boat: A trademark comedy by Hasse&Tage." Journal of Scandinavian Cinema 5, no. 3 (September 1, 2015): 259–70. http://dx.doi.org/10.1386/jsca.5.3.259_1.

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Tankrathok, Anupong, Javier Iglesias-Fernández, Sukanya Luang, Robert C. Robinson, Atsuo Kimura, Carme Rovira, Maria Hrmova, and James R. Ketudat Cairns. "Structural analysis and insights into the glycon specificity of the rice GH1 Os7BGlu26 β-D-mannosidase." Acta Crystallographica Section D Biological Crystallography 69, no. 10 (September 20, 2013): 2124–35. http://dx.doi.org/10.1107/s0907444913020568.

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Rice Os7BGlu26 is a GH1 family glycoside hydrolase with a threefold higherkcat/Kmvalue for 4-nitrophenyl β-D-mannoside (4NPMan) compared with 4-nitrophenyl β-D-glucoside (4NPGlc). To investigate its selectivity for β-D-mannoside and β-D-glucoside substrates, the structures of apo Os7BGlu26 at a resolution of 2.20 Å and of Os7BGlu26 with mannose at a resolution of 2.45 Å were elucidated from isomorphous crystals in space groupP212121. The (β/α)8-barrel structure is similar to other GH1 family structures, but with a narrower active-site cleft. The Os7BGlu26 structure with D-mannose corresponds to a product complex, with β-D-mannose in the1S5skew-boat conformation. Docking of the1S3,1S5,2SOand3S1pyranose-ring conformations of 4NPMan and 4NPGlc substrates into the active site of Os7BGlu26 indicated that the lowest energies were in the1S5and1S3skew-boat conformations. Comparison of these docked conformers with other rice GH1 structures revealed differences in the residues interacting with the catalytic acid/base between enzymes with and without β-D-mannosidase activity. The mutation of Tyr134 to Trp in Os7BGlu26 resulted in similarkcat/Kmvalues for 4NPMan and 4NPGlc, while mutation of Tyr134 to Phe resulted in a 37-fold higherkcat/Kmfor 4NPMan than 4NPGlc. Mutation of Cys182 to Thr decreased both the activity and the selectivity for β-D-mannoside. It was concluded that interactions with the catalytic acid/base play a significant role in glycon selection.

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Qiao, Jing, Jiushi Liu, Jingjing Liao, Zuliang Luo, Xiaojun Ma, and Guoxu Ma. "Identification of Key Amino Acid Residues Determining Product Specificity of 2,3-Oxidosqualene Cyclase in Siraitia grosvenorii." Catalysts 8, no. 12 (November 22, 2018): 577. http://dx.doi.org/10.3390/catal8120577.

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Sterols and triterpenes are structurally diverse bioactive molecules generated through cyclization of linear 2,3-oxidosqualene. Based on carbocationic intermediates generated during the initial substrate preorganization step, oxidosqualene cyclases (OSCs) are roughly segregated into a dammarenyl cation group that predominantly catalyzes triterpenoid precursor products and a protosteryl cation group which mostly generates sterol precursor products. The mechanism of conversion between two scaffolds is not well understood. Previously, we have characterized a promiscuous OSC from Siraitia grosvenorii (SgCS) that synthesizes a novel cucurbitane-type triterpene cucurbitadienol as its main product. By integration of homology modeling, molecular docking and site-directed mutagenesis, we discover that five key amino acid residues (Asp486, Cys487, Cys565, Tyr535, and His260) may be responsible for interconversions between chair–boat–chair and chair–chair–chair conformations. The discovery of euphol, dihydrolanosterol, dihydroxyeuphol and tirucallenol unlocks a new path to triterpene diversity in nature. Our findings also reveal mechanistic insights into the cyclization of oxidosqualene into cucurbitane-type and lanostane-type skeletons, and provide a new strategy to identify key residues determining OSC specificity.

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Surata, I. Wayan, Tjokorda Gde Tirta Nindhia, and Dwiki Marsetio Widagdo. "Promoting natural fiber from bark of Hibiscus tiliaceus as rope to reduce marine pollution from microplastic fiber yield from synthetic rope." E3S Web of Conferences 158 (2020): 04007. http://dx.doi.org/10.1051/e3sconf/202015804007.

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Synthetic ropes are popular for application in marine boat as docking, anchor, tow, and sailing. The advantages of synthetic ropes are waterproof, strong and durable, can be designed for sinks or floats and able to stretches. Synthetic ropes are stronger, more resistant to rotting than ropes created from natural fibers. Synthetic ropes also possess certain disadvantages of slipperiness, and can be damaged more easily by UV light. Synthetic ropes is recognizes as a source of microplastic fiber pollutant in marine area. In this work a bark of Hibiscus tiliaceus three is introduced as candidate source of natural fiber for rope to reduce number of microplastic fiber pollutant from synthetic rope. The bark was taken from a trunk with diameter around 20 cm. The bark was immersed in water for 7 days and subsequently was soaked in 5% NaOH solution for 2 hours. Fiber obtained then was dried. It was prepared 7 valid single fiber samples. The average of tensile strength of single fiber obtained by using this method is found around 44.604 MPa. The average of Modulus elasticity E is found 365.864 MPa. The failure strain is found 11.6 %.

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Tang, Tao, Chenliuli Jiang, and Mary Perrelli. "Data Collection and Analyses Applying Unmanned Helicopter (UAV) Remote Sensing to Survey Water Chestnut Invasive Species." International Journal of Data Analytics 1, no. 1 (January 2020): 38–51. http://dx.doi.org/10.4018/ijda.2020010103.

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Unmanned aerial vehicles (UAVs) can be utilized for large quantity data acquisitions. The major objective of this research is to apply UAV technology to perform rapid data collections and to predict coverages of water chestnut (Trapa natans) invasive species along the lower Erie Canal. The second objective of this research is to assess the effectiveness of the physical removal by US Fishery and Wildlife Services (US-FWS) since 2010 using the collected data. Third, both micro-climatic conditions of temperature and relative humidity (RH), land use and land cover types were analyzed to assess habitat conditions of water chestnut. The results indicate that the physical removal of water chestnut by US-FWS was very effective. Four plant patches were detected applying drone (UAV) sensor in the summer of 2016. Temperature and RH survey show that temperature decreases in general as altitude increases. RH values both at the canal surface and at 12 meters above the surface are higher than those at the surrounding land areas. However, a few exceptions exist at the ground level, which might be influenced by grassland moisture evapotranspiration. In summary, 1) no sufficient evidence in this study to illustrate the effects of temperature and RH on the growth of water chestnut; 2) the highest concentration and re-appearance of water chestnut are either at the public parks or at the boat docking sites in the urban areas. 3) This research demonstrates UAV is an emerging technology of large data collection and analysis.

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Sala, Francesco, Enzo Marinoni, Anna N. Miller, Giovanni Pesenti, Fabio Castelli, Salvatore Alati, Andrea Coppadoro, and Dario Capitani. "Evaluation of an Endoscopic Procedure for the Treatment of Docking Site Nonunion." Journal of Orthopaedic Trauma 27, no. 10 (October 2013): 569–75. http://dx.doi.org/10.1097/bot.0b013e31829484f6.

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NAWAZ, Muhammad, Naeem IQBAL, Sobia IDREES, and Ihsan ULLAH. "DREB1A from Oryza sativa var. IR6: homology modelling and molecular docking." TURKISH JOURNAL OF BOTANY 38 (2014): 1095–102. http://dx.doi.org/10.3906/bot-1403-45.

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8

Pengde, Sang. "Support Technology of Long Bolt in Roadway under Crushing Condition." E3S Web of Conferences 194 (2020): 04037. http://dx.doi.org/10.1051/e3sconf/202019404037.

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In order to solve the problem that the roadway roof is large and easy to collapse under crushing conditions. Test shows that: Under the crushing condition, a considerable part of roadway surrounding rock deformation is in a given deformation state. The control effect of support resistance on surrounding rock deformation is limited at the level of existing technology. In this kind of roadway support, the deformation method of anchor cable high rigidity support should be abandoned. It is changed to adopt the long bolt with high elongation to adapt to the deformation of surrounding rock, and continue to provide high support resistance to prevent loose rock caving caused by roof collapse. Based on this, the supporting technology of replacing anchor cable with docking bolt is put forward to increase the coordination between supporting member and roadway surrounding rock deformation. The industrial test results of Baode coal mine show that the technology can adapt to the deformation of surrounding rock and effectively prevent the tunnel roof from caving due to the break of anchor cable.

9

Araújo, Joabe Lima, Gardênia Taveira Santos, Ruan Sousa Bastos, Francisco das Chagas Alves Lima, and Jefferson Almeida Rocha. "Predição computacional de alvos moleculares de um complexo metálico de rutênio com epiisopiloturina e óxido nítrico." Revista de Saúde 11, no. 1 (June 16, 2020): 42–48. http://dx.doi.org/10.21727/rs.v11i1.2197.

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A Leishmaniose é uma doença infecciosa que ocasiona a morte de 26.000 a 65.000 pessoas anualmente, estima-se que no ano de 2019 houve 700.000 a 1 milhão de novos casos. Estes dados são preocupantes e está relacionado à falta de saneamento básico que favorece a proliferação dos vetores, além da ausência de medicamentos eficientes com mecanismos de ação alternativos e com menos efeitos colaterais. Em meio a essa necessidade de novos agentes inibitórios, este estudo teve como objetivo realizar uma predição computacional de alvos moleculares de Leishmania para um complexo metálico de rutênio com epiisopiloturina e óxido nítrico (Epiruno2). O processo de docking molecular foi realizado empregando-se o software Autodock Tools (ADT) versão 1.5.6. As proteínas alvos foram consideradas rígidas, enquanto que o Epiruno2 foi considerado flexível. A glicoproteína GP63 (1lml) representa mais de 1% da proteína total do parasito tendo em vista que a 1lml é uma metaloprotease que predomina grupos funcionais em seu sítio ativo, torna-se um alvo atrativo em estudos de atividade inibitória. O docking molecular entre o Epiruno2 e a 1lml resultou na melhor conformação de encaixe deste estudo, com energia de Gbinda de -8,05 Kcal.mol-1 e uma constante de inibição de 1,26 µM. Também foi observada a formação de quatro pontes de hidrogênio, demonstrando ser um forte candidato a fármaco antileishmania. Concluindo-se que o composto epiruno2 é clinicamente atrativo para estudos experimentais futuros ex vivo, in vitro e in vivo, pois seus resultados in sílico apresentaram boas interações moleculares para todas as proteínas alvo deste estudo.

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Steinhoff-Wagner, Julia, Neele Meier, Maria Diel, Kamila Dynowski, Celine Heinemann, Jonas Stein, Christian Bode, et al. "322 Challenges for porc value chains - simultaneous implementation of elevated animal welfare standards under field conditions." Journal of Animal Science 97, Supplement_3 (December 2019): 8. http://dx.doi.org/10.1093/jas/skz258.014.

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Abstract Consumers increasingly demand an improvement of animal welfare, in particular a refrainment from surgical interventions such as tail docking and castration. The aim of the study was to investigate effects of simultaneous implementation of elevated welfare standards under field conditions on valid indicators at the abattoir and product quality. Six different pig farms from birth to fattening were reimbursed for implementing elevated welfare standards (no tail docking in all and no castration of male piglets). Farmers were free to try Improvac® treatments and boar fattening. At the abattoir, welfare indicators like swellings and conditions of ears, claws, skin and tails were inspected on carcasses (pigs: n >1866). Meat quality was evaluated (n >185). Fixed effects of sex (females and barrows, Improvac® treated boars, boars) and farm were included in mixed models and Pearson correlations were calculated (SAS 9.4). Results were condensed with a Failure Mode and Effects Analysis (FMEA). Two farms managed to deliver around 90% of pigs with intact tails, whereas one completely failed (80% tails shorter than 1/3 of original length). Sex affected almost all welfare indicators, with least impairments in the females and barrows group and most in boars (P < 0.01). FMEA revealed concerns regarding animal welfare and meat quality in boars and immense variation between farms. For example, drip losses showed an interaction between sex and farm, suggesting that some farms provide better conditions for Improvac® treated pigs and boars than others. Besides that, transport duration from fattening location to abattoir correlated with swelling on fore and hind legs (0.15< r< 0.17; P < 0.001), but did not affect tail classification. In conclusion, the implementation of elevated animal welfare standards was highly dependent on the farm-specific management. Because used indicators were successfully assessed on the carcasses, they seem to be valid for future reward systems.

11

Gomez, Rebeca, Rafael Molina, Alberto Camarero, and Francisco De los Santos. "DETECTION OF SHIP PATHS ON DOCKING AND QUAY OCCUPATION ANALYSIS BASED ON A VIDEO-IMAGERY SYSTEM AS SUPPORT TO PORT MANAGEMENT." Coastal Engineering Proceedings 1, no. 33 (October 9, 2012): 6. http://dx.doi.org/10.9753/icce.v33.posters.6.

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To manage a quay it is necessary to know the level of activity that is being developed on it. This is an imperative parameter for determining the trend of terminal capacity. This allows, among other things, to improve investments previsions, a better ship waiting time management and to select what kind of ship must operate in the terminal. In Spain, Port Authorities have to apply activity fares to ships and terminal operators, based on their activity level and occupation data. In many cases there are not automated protocols to control this information, or it is directly provided by the operator. From a probabilistic focus of the problem, R.O.M. 0.0. (2001) pointed out the necessity to assume a risk in the development of port activities. This work goes toward this goal by obtaining the areas where a greater density of activity is taking place on a dock. This information allows us to establish a probability map and then, determining a risk. To this end, ship trajectories must be monitored. The trajectories condition the availability of maneuver areas on the dock, the existence of interferences between different kind of ships and they provide fundamental information for the design of mooring systems (fenders, for instance). As a product of knowing ship trajectories we can obtain ship speed and approximation angle (both are data very dependent of each quay geometry and location) and other ship parameters. The aim of this work has been to develop a video – monitoring system of port activities (Molina, R. et al. (2007)), that provides us quay use statistics and areas with greater probability of occupation (for instance, the probability of interaction between big cargo ships and leisure crafts or fishing boats). It is a real time information acquisition system, automated, low cost and able to cover extent areas. Because Port Authorities have disposal of communication infrastructures to serve security and access control, we propose to give them an additional use.

12

"A Study on the Development of Auto Pilot Device at Shallow Water for the Docking of Fishing Boat." Bulletin of the Korean society of Fisheries Technology 40, no. 2 (May 1, 2004): 144–48. http://dx.doi.org/10.3796/ksft.2004.40.2.144.

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13

"Docking and Virtual Screening Studies for New Leads of Boar Salivary Lipocalin." Bulletin of the Korean Chemical Society 29, no. 5 (May 20, 2008): 959–62. http://dx.doi.org/10.5012/bkcs.2008.29.5.959.

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14

Foley, David, and Jean-Sebastien Plante. "Design of a Multijet Omnidirectional Propulsion System for Small Jet-Boats." Journal of Mechanical Design 132, no. 11 (November 1, 2010). http://dx.doi.org/10.1115/1.4002805.

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Jet-boats perform remarkably well at high-speed but lack low speed maneuverability for tight maneuvers such as docking. This paper presents a joystick controlled omnidirectional propulsion system for jet-boats. The concept uses a set of fixed jet nozzles disposed around the hull. When a force is commanded by the joystick, valves on each nozzle modulate the flow so that the sum of nozzle thrusts correspond to the commanded force. The positions and angles of the nozzles are optimized with an index of omnidirectionality quality based on the projection of a set of force solutions on a shell with the shape of a desired force space. The choice of valve positions and engine speeds is done by the numerical inversion of an internal viscous flow model. A 3D simulator, backed by experimental results, serves to (1) evaluate the ability of the proposed concept in meeting its design requirements and (2) develop control algorithms. Experimental results show that the proposed omnidirectional system is effective for low speed maneuverability with open-loop force control. The present work also offers an effective omnidirectional propulsion system that is easy to enhance with advanced control laws. Velocity feedback control is given as an example and shows important improvement of maneuverability and robustness to miscalibration.

15

Saakre, Manjesh, Deepu Mathew, and V. Ravisankar. "Perspectives on plant flavonoid quercetin-based drugs for novel SARS-CoV-2." Beni-Suef University Journal of Basic and Applied Sciences 10, no. 1 (March 24, 2021). http://dx.doi.org/10.1186/s43088-021-00107-w.

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Abstract Background The world pandemic COVID-19 caused by SARS-CoV-2 is currently claiming thousands of lives. Flavonoids abundantly present in the fruits and vegetables, especially quercetin, are shown to have antiviral activities. Main text This paper reviews the capability of the plant flavonoid quercetin to fight the novel coronavirus and the possibility for drug development based on this. The mode of action explaining the known pathways through which this molecule succeeds in the antiviral activity, action of quercetin on SARS-CoV-2 main protease 3CLpro, antiviral activities of its derivatives on human viruses, effect of combination of zinc co-factor along with quercetin in the COVID-19 treatment, and the regulation of miRNA genes involved in the viral pathogenesis are discussed. Proof for this concept is provided following the virtual screening using ten key enzymes of SARS-CoV-2 and assessing their interactions. Active residues in the 3D structures have been predicted using CASTp and were docked against quercetin. Key proteins 3CLpro, spike glycoprotein/ human ACE2-BOAT1 complex, RNA-dependent RNA polymerase, main peptidase, spike glycoprotein, RNA replicase, RNA binding protein, papain-like protease, SARS papain-like protease/ deubiquitinase, and complex of main peptidase with an additional Ala at the N-terminus of each protomer, have shown the binding energies ranging between − 6.71 and − 3.37 kcal/ Mol, showing that quercetin is a potential drug candidate inhibiting multiple SARS-CoV-2 enzymes. Conclusion The antiviral properties of flavonoid and the molecular mechanisms involved are reviewed. Further, proof for this concept is given by docking of key proteins from SARS-CoV-2 with quercetin. Graphical abstract

Journal articles on the topic 'Boat Docking'

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