Wright, D. J.; O'Dea, E.; Cushing, J. B.; Cuny, J. E.; Toomey, D. R.; Hackett, K.; Tikekar, R.
The East Pacific Rise (EPR) from 9-10deg. N is currently our best-studied section of fast-spreading mid-ocean ridge. During several decades of investigation it has been explored by the full spectrum of ridge investigators, including chemists, biologists, geologists and geophysicists. These studies, and those that are ongoing, provide a wealth of observational data, results and data-driven theoretical (often numerical) studies that have not yet been fully utilized either by research scientists or by professional educators. While the situation is improving, a large amount of data, results, and related theoretical models still exist either in an inert, non-interactive form (e.g., journal publications) or as unlinked and currently incompatible computer data or algorithms. Infrastructure is needed not just for ready access to data, but linkage of disparate data sets (data to data) as well as data to models in order quantitatively evaluate hypotheses, refine numerical simulations, and explore new relations between observables. The prototype of a computational environment and toolset, called the Virtual Research Vessel (VRV), is being developed to provide scientists and educators with ready access to data, results and numerical models. While this effort is focused on the EPR 9N region, the resulting software tools and infrastructure should be helpful in establishing similar systems for other sections of the global mid-ocean ridge. Work in progress includes efforts to develop: (1) virtual database to incorporate diverse data types with domain-specific metadata into a global schema that allows web-query across different marine geology data sets, and an analogous declarative (database available) description of tools and models; (2) the ability to move data between GIS and the above DBMS, and tools to encourage data submission to archivesl (3) tools for finding and viewing archives, and translating between formats; (4) support for "computational steering" (tool composition
Lokeshwari, Devirammanahalli Mahadevaswamy; Rekha, Nanjappagowda Dharmappa; Srinivasan, Bharath; Vivek, Hamse Kameshwar; Kariyappa, Ajay Kumar
A series of new of furan derivatised [1,4] benzothiazepine analogues were synthesized starting from 1-(furan-2-yl)ethanone. 1-(Furan-2-yl)ethanone was converted into chalcones by its reaction with various aromatic aldehydes, then were reacted with 2-aminobenzenethiol in acidic conditions to obtain the title compounds in good yields. The synthesized new compounds were characterized by (1)H NMR, (13)C NMR, Mass spectral studies and elemental analyses. All the new compounds were evaluated for their in vitro VRV-PL-8a and H(+)/K(+) ATPase inhibitor properties. Preliminary studies revealed that, some molecules amongst the designed series showed promising VRV-PL-8a and H(+)/K(+) ATPase inhibitor properties. Further, rigid body docking studies were performed to understand possible docking sites of the molecules on the target proteins and the mode of binding. This finding presents a promising series of lead molecules that can serve as prototypes for the treatment of inflammatory related disorder that can mitigate the ulcer inducing side effect shown by other NSAIDs. Copyright © 2017 Elsevier Ltd. All rights reserved.
Dhananjaya, B L; Sudarshan, S
The aqueous extract of Mangifera indica is known to possess anti-snake venom activities. However, its inhibitory potency and mechanism of action on multi-toxic phospholipases A2s, which are the most toxic and lethal component of snake venom is still unknown. Therefore, this study was carried out to evaluate the modulatory effect of standard aqueous bark extract of M. indica on VRV-PL-VIIIa of Indian Russells viper venom. Mangifera indica extract dose dependently inhibited the GIIB sPLA2 (VRV-PL-VIIIa) activity with an IC50 value of 6.8±0.3 μg/ml. M. indica extract effectively inhibited the indirect hemolytic activity up to 96% at ~40 μg/ml concentration. Further, M. indica extract at different concentrations (0-50 μg/ml) inhibited the edema formed in a dose dependent manner. It was found that there was no relieve of inhibitory effect of the extract when examined as a function of increased substrate and calcium concentration. The inhibition was irreversible as evident from binding studies. The in vitro inhibition is well correlated with in situ and in vivo edema inducing activities. As the inhibition is independent of substrate, calcium concentration and was irreversible, it can be concluded that M. indica extracts mode of inhibition could be due to direct interaction of components present in the extract with PLA2 enzyme. In conclusion, the aqueous extract of M. indica effectively inhibits svPLA2 (Snake venom phospholipase A2) enzymatic and its associated toxic activities, which substantiate its anti-snake venom properties. Further in-depth studies are interesting to known on the role and mechanism of the principal inhibitory constituents present in the extract, so as to develop them into potent anti-snake venom and as an anti-inflammatory agent.
Heinapuu, Ott, 1979-
Lauljast ja harfimängijast Cecile Corbelist ja keldi harfist telennist. Cecile Corbeli ja Cyril Maurini kontserdid: 21. märts Aravete kultuurimajas, 22. märts. Narva raekojas, 23. märts Pärnus Ammende Villas, 24. märts Tallinn Reval Park Hotel & Casinos, 25. märts Tartu Sadamateatris
... installation of a Variable Refrigerant Volume (VRV) heat pump system and vent limited gas regulators for the... exception was granted by HUD on the basis that the relevant manufactured goods, (a VRV heat pump system and...
Van Bergeijk, S.A.; Van der Zee, C.; Stal, L.J.
Long-term (vrv14 d) and short-term (vrv9 h) effects of salinity on the dimethylsulphoniopropionate (DMSP) content of the marine benthic diatom Cylindrotheca closterium were investigated. When grown in batch cultures at various salinities, intracellular DMSP increased from 13.8 to 823 wmol gvmv1
Vallik, Aidi, 1971-
Tutvustus: Townsend, Sue. Salajane päevik. Tallinn : Tänapäev, 2002 ; Jacobsson, Anders, Olsson, Sören. Emanuel. Tallinn : Hotger, 2002 ; Brennan, Herbie. Haldjasõjad. Tallinn : Varrak, 2005 ; Paolini, Christopher. Eragon. Tallinn : Pegasus, 2005 ; Paolini, Christopher. Vanem. Tallinn : Pegasus, 2006 ; Vallik, Aidi. Narkohollo ehk Florose vabastamine. Tartu : Lugu-Loo, 2006 ; Schlüter, Andreas. Laste linn. Tallinn : Tormikiri, 2005 ; Schlüter, Andreas. Rööv. Tallinn : Tormikiri, 2005 ; Sachar, Lois. Augud. Tallinn : Draakon ja Kuu, 2005 ; Rannap, Jaan. Roheline kindlus. Tartu : Tiritamm, 2006 ; Henno, Sass. Mina olin siin. Tallinn : Eesti Päevalehe Kirjastus, 2005
... Variable Refrigerant Variable Refrigerant Volume systems, also known as Variable Refrigerant Flow ] (VRV... work unless all of the iron, steel, and manufactured goods used in the project are produced in the... goods are not produced in the U.S. in sufficient and reasonably available quantities or of satisfactory...
... purchase and installation of a Variable Refrigerant Volume Heating, Ventilation and Air Conditioning (VRV... purchase and installation of solar panels and linoleum for its Lyndon B. Johnson Apartments project. An... HUD on the basis that the relevant manufactured goods (solar panels and linoleum) are not produced in...
For the Blood Transfusion Service North the German Red Cross (Berlin, Federal Republic of Germany) utilizes the waste heat from production facilities and laboratories for heating offices. By doing this, the VRV technology for the realization of this solution was used.
Perata, E; Severoni, S; Schietroma, M; Rossi, M; Perata, A; Natuzzi, G; Coiera, F; Carlei, F; Palmieri, R; Capperucci, G
The Vesico-Vaginal Fistula (VVF) very often occur in tropical countries, but their treatment is usually not correct. A surgical treatment was carried put on 68 patients affected by VVF from March 1986 to December 19997 in the Nazareth Hospital (Nairobi). Their mean age was 22 years old; 27 patients (39.7%) underwent surgery for the first time, while for 41 patients (60.2%) the treatment was repeated. Fourteen patients (20.5%) had also Vesico-Rectum-Vaginal Fistula (VRV). The VVF was cured with a transvaginal treatment using a Martius strip for 32 cases. For 16 cases both vaginal and abdominal treatment was performed in the same time using an abdominal muscle strip, which was inserted in the space between the vagina and bladder. In VRV and VVF combined cases, the VVF was treated in the following way: first of all, during the same session, the VVF was cured by making a colostomy and then, after 2 months VRV was treated. The follow-up took about 7.2 months; 62 patients (91.1%) recovered, for 6 cases treated only with transvaginal operation, it has been necessary a second surgical procedure owing to relapsing, and for 2 of them an abdominal muscle strip was used. In conclusion, while the transvaginal repair is satisfactory treatment for little fistula never surgically treated before, on the other hand the transabdominal vaginal treatment is the best cure forge large or relapsing fistulas.
San Martin Donamaria, Diego
Mi proyecto es sobre la sustitución del sistema de aire acondicionado actual en las oficinas, la enfriadora industrial y el sistema de iluminación. Además explico un sistema para obtener ahorros en la refrigeración. Este sistema se llama free cooling. En mi proyecto el objetivo mas importante es la mejora de la eficiencia energética. Decidí instalar una nueva tecnología llamada VRV para el sistema de aire acondicionado. Con este sistema conseguimos obtener grandes ahorros debido al camb...
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Berg, Alex Rune; Jackson, Bill; Jordan, Tibor
Let G=(V,E) be a graph or digraph and r:V \\to Z+. An r-detachment of G is a graph H obtained by `splitting' each vertex v \\in V into r(v) vertices. The vertices v1,...,vr(v) obtained by splitting v are called the pieces of v in H. Every edge uv \\in E corresponds to an edge of H connecting some...... piece of u to some piece of v. Crispin Nash-Williams gave necessary and sufficient conditions for a graph to have a k-edge-connected r-detachment. He also solved the version where the degrees of all the pieces are specified. In this paper we solve the same problems for directed graphs. We also give...
Nanny Roedji Roedji
Full Text Available Nowadays, eviromental management has gotten a fully attention. Then, hospitality industry in East Java Province has committed to the Eco Friendly Enviroment needs a deep investigation in order to analyze a practical managment of hotel product which uses an eviromental friendly method in improving efficiency of energy, water, air quality, and solid waste management and liquid waste management system. This research used a descriptive qualitatif method which chracterized causuality and using a survey method. Data were collected by using an istitutional-perceptional approach and were analyzed by using enviromental performance scale from 1 to 5 point toward Green Hotel practice. The conclusion from the investigation result are; 45% hotel understand the concept and green product implementation. 50% hotel reuse the water to pour the garden. 40% about operating procedure such as towel reuse and bed sheet. 90% of the hotel already use VRV air-conditioner which can adjust the temperature suitable� with the number of the people in the room and its automatically turn off when there are no people in the room. 45% shows that hotel provide dispenser to combine shampoo and conditioner (hair moisturizer in one product so it will decrease the plastic waste.
Parameshwaran, R. [Department of Mechanical Engineering, Anna University Chennai, Chennai (India); Karunakaran, R. [Department of Mechanical Engineering, Anna University Tiruchirappalli-Thirukkuvalai Campus (India); Kumar, C. Vinu Raja [Department of Electrical and Electronics Engineering, Anna University Chennai, Chennai (India); Iniyan, S. [Institute for Energy Studies, Department of Mechanical Engineering, Anna University Chennai, Chennai (India)
In this work, the combined effect of the energy conservative variable refrigerant volume (VRV) system and the variable air volume (VAV) system was experimentally investigated using genetic fuzzy optimization method that yielded better thermal comfort, indoor air quality (IAQ) requirements without compromising on the energy savings potential. The proposed system was tested using the demand controlled ventilation (DCV) combined with the economizer cycle ventilation (ECV) techniques and examined for a year-round building air conditioning (A/C) application. The supply air temperature (SAT) set points were varied under three distinct strategies and the optimal solutions obtained for the fuzzy systems designed resulted in an enhanced energy conservative potential. The test results of the proposed system were compared with the conventional fan coil A/C system. Based on the three strategies of the supply air temperature, the proposed system yielded an improved per day energy savings potential of 54% in summer and 61% in winter design conditions. Furthermore, for the strategies considered the proposed system achieved an annual energy conservative potential of 36% and exhibited more possible ways to achieve thermal comfort, IAQ and energy conservation. (author)
Full Text Available A visual tracking system is essential as a basis for visual servoing, autonomous navigation, path planning, robot-human interaction and other robotic functions. To execute various tasks in diverse and ever-changing environments, a mobile robot requires high levels of robustness, precision, environmental adaptability and real-time performance of the visual tracking system. In keeping with the application characteristics of our amphibious spherical robot, which was proposed for flexible and economical underwater exploration in 2012, an improved RGB-D visual tracking algorithm is proposed and implemented. Given the limited power source and computational capabilities of mobile robots, compressive tracking (CT, which is the effective and efficient algorithm that was proposed in 2012, was selected as the basis of the proposed algorithm to process colour images. A Kalman filter with a second-order motion model was implemented to predict the state of the target and select candidate patches or samples for the CT tracker. In addition, a variance ratio features shift (VR-V tracker with a Kalman estimation mechanism was used to process depth images. Using a feedback strategy, the depth tracking results were used to assist the CT tracker in updating classifier parameters at an adaptive rate. In this way, most of the deficiencies of CT, including drift and poor robustness to occlusion and high-speed target motion, were partly solved. To evaluate the proposed algorithm, a Microsoft Kinect sensor, which combines colour and infrared depth cameras, was adopted for use in a prototype of the robotic tracking system. The experimental results with various image sequences demonstrated the effectiveness, robustness and real-time performance of the tracking system.
Pan, Shaowu; Shi, Liwei; Guo, Shuxiang
A visual tracking system is essential as a basis for visual servoing, autonomous navigation, path planning, robot-human interaction and other robotic functions. To execute various tasks in diverse and ever-changing environments, a mobile robot requires high levels of robustness, precision, environmental adaptability and real-time performance of the visual tracking system. In keeping with the application characteristics of our amphibious spherical robot, which was proposed for flexible and economical underwater exploration in 2012, an improved RGB-D visual tracking algorithm is proposed and implemented. Given the limited power source and computational capabilities of mobile robots, compressive tracking (CT), which is the effective and efficient algorithm that was proposed in 2012, was selected as the basis of the proposed algorithm to process colour images. A Kalman filter with a second-order motion model was implemented to predict the state of the target and select candidate patches or samples for the CT tracker. In addition, a variance ratio features shift (VR-V) tracker with a Kalman estimation mechanism was used to process depth images. Using a feedback strategy, the depth tracking results were used to assist the CT tracker in updating classifier parameters at an adaptive rate. In this way, most of the deficiencies of CT, including drift and poor robustness to occlusion and high-speed target motion, were partly solved. To evaluate the proposed algorithm, a Microsoft Kinect sensor, which combines colour and infrared depth cameras, was adopted for use in a prototype of the robotic tracking system. The experimental results with various image sequences demonstrated the effectiveness, robustness and real-time performance of the tracking system.