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returning spacecraft (including potentially manned craft) have find way of slowing down as possible while still in higher atmospheric layers , avoid hitting ground (lithobraking) or burning up. many orbital space flights, initial deceleration provided retrofiring of craft s rocket engines, perturbing orbit (by lowering perigee down atmosphere) onto suborbital trajectory. many spacecraft in low-earth orbit (e.g., nanosatellites or spacecraft have run out of station keeping fuel or otherwise non-functional) solve problem of deceleration orbital speeds through using atmospheric drag (aerobraking) provide initial deceleration. in cases, once initial deceleration has lowered orbital perigee mesosphere, spacecraft lose of remaining speed, , therefore kinetic energy, through atmospheric drag effect of aerobraking. intentional aerobraking achieved orienting returning space craft present heat shields forward toward atmosphere protect against high temperatures generated atmospheric compression ,...

bury, john b. (1911). imperial administrative system of ninth century: revised text of kletorologion of philotheos. london: oxford university press.  guilland, rodolphe (1967). recherches sur les institutions byzantines, tome (in french). berlin: akademie-verlag.  kazhdan, alexander petrovich, ed. (1991). oxford dictionary of byzantium. new york , oxford: oxford university press. isbn 978-0-19-504652-6. 

on november 23, 1904, irt lenox avenue line opened between 96th street , 145th street. 3 trains ran between 145th street , city hall, making stops. on july 1, 1918, entire irt broadway–seventh avenue line completed. 3 trains rerouted south of 42nd street irt lexington avenue line new line. made stops south ferry. as of 1934, 3 service operated between 145th street , south ferry except late nights, when service operated between 145th street , 96th street, making local stops. beginning on january 4, 1955, 3 trains ran express in manhattan during rush hours , extended flatbush avenue; few layups , put-ins ran new lots. late night service discontinued between 145th street , 96th street. however, december 20, 1957, 3 trains rerouted new lots avenue during rush hours. on february 6, 1959, trains except late nights made express stops in manhattan part of west side improvement , ran flatbush avenue. starting april 8, 1960, 3 trains rerouted new lots. weekday evening service cut shuttle 145th...

tony prito appears in popular hardy boys book series franklin w. dixon. son of italian immigrants , close friend of frank , joe hardy, tony works father s construction company , in casefiles manager of bayport s local pizza parlor, mr. pizza. owner of motor boat napoli, destroyed in #36 , replaced napoli ii, , drives 1 of prito co. pickup trucks. he attends bayport high , standout second baseman on school’s baseball team , talented pass receiver on football team. tony handsome 19-year-old curly black hair, brown eyes , olive skin. though not big, wiry, lightning quick reflexes. in casefiles #41, highway robbery, said 5 inches shorter , twenty pounds lighter hardy boys, 6-1 , 6 feet, tony around 5-7 or 5–8 feet.

illustrative structures of transition metal carbon dioxide complexes, left: ni(η-co2)(pcy3)2, rh(η-co2)cll4 (l4 = (diars)2), metallacarboxylic ester cpfe(co)2(η:η-co2)re(co)5, , dimetalla-ester. carbon dioxide binds metals in few ways. bonding mode depends on electrophilicity , basicity of metal centre. common η-co2 coordination mode illustrated aresta s complex, ni(co2)(pcy3)2, first reported complex of co2. square-planar compound derivative of ni(ii) reduced co2 ligand. in rare cases, co2 binds metals lewis base through oxygen centres, such adducts weak , of theoretical interest. variety of multinuclear complexes known involving lewis basic , lewis acidic metals, e.g. metallacarboxylate salts (c5h2)fe(co)2co2k. in multinuclear cases (compounds containing more 1 metal), more complicated , more varied coordination geometries observed. 1 example unsymmetrical compound containing 4 rhenium centres, [(co)5reco2re(co)4]2. carbon dioxide can bind ligands on metal complex (vs metal), e.g. co...

1 seniors 1.1 men s singles 1.2 women s singles 1.3 men s doubles 1.4 women s doubles 1.5 mixed doubles seniors men s singles budge patty defeated frank sedgman, 6–1, 8–10, 6–2, 6–3 women s singles louise brough defeated margaret dupont, 6–1, 3–6, 6–1 men s doubles john bromwich / adrian quist defeated geoff brown / bill sidwell, 7–5, 3–6, 6–3, 3–6, 6–2 women s doubles louise brough / margaret dupont defeated shirley fry / doris hart, 6–4, 5–7, 6–1 mixed doubles eric sturgess / louise brough defeated geoff brown / pat todd, 11–9, 1–6, 6–4

1 wave glider 1.1 architecture 1.2 next generation wave glider 1.3 software: regulus , wave glider management system (wgms) wave glider architecture the wave glider composed of 2 parts: ‘’float’’, size , shape of large surfboard, travels on surface of ocean; ‘’sub’’ or wing rack hangs below on umbilical tether 13–26 feet (4–8 meters) long , equipped rudder steering , thruster additional thrust during extreme conditions (doldrums or high currents). wave glider leverages difference in motion between ocean surface , calmer water below create forward propulsion. no fuel required operation enables stay @ sea long durations. next generation wave glider on september 7, 2017, liquid robotics announced next generation wave glider advancements platform’s operational range, , performance missions in high sea states (sea state 6 , greater) , high latitudes. changes include advancements expanded sensor payloads , increased energy , storage capacity required long duration maritime surveillance, envi...