LEADER 01821oam 2200517 450 001 9910716100403321 005 20210427140139.0 035 $a(CKB)5470000002517096 035 $a(OCoLC)785286630$z(OCoLC)56097995$z(OCoLC)760983413 035 $a(EXLCZ)995470000002517096 100 $a20120408j196812 ua 0 101 0 $aeng 135 $aur||||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aFlying quality factors currently limiting helicopter nap-of-the-earth maneuverability as identified by flight investigation /$fby Henry L. Kelley, Robert J. Pegg, and Robert A. Champine 210 1$aWashington, D.C. :$cNational Aeronautics and Space Administration,$dDecember 1968. 215 $a1 online resource (47 pages) $cillustrations 225 1 $aNASA/TN ;$vD-4931 300 $a"December 1968." 320 $aIncludes bibliographical references (page 15). 606 $aHelicopters$2nasat 606 $aWind velocity$2nasat 606 $aHelicopters$xHandling characteristics$2fast 615 7$aHelicopters. 615 7$aWind velocity. 615 7$aHelicopters$xHandling characteristics. 700 $aKelley$b Henry L.$01397937 702 $aPegg$b Robert J. 702 $aChampine$b Robert A$g(Robert Apgar),$f1921-2003, 712 02$aUnited States.$bNational Aeronautics and Space Administration, 801 0$bOCLCE 801 1$bOCLCE 801 2$bEGM 801 2$bAD# 801 2$bOCLCQ 801 2$bBUF 801 2$bOCLCO 801 2$bOCLCF 801 2$bOCLCQ 801 2$bGPO 906 $aBOOK 912 $a9910716100403321 996 $aFlying quality factors currently limiting helicopter nap-of-the-earth maneuverability as identified by flight investigation$93460279 997 $aUNINA LEADER 05510nam 2201369z- 450 001 9910637794203321 005 20231214132934.0 010 $a3-0365-5669-9 035 $a(CKB)5470000001631594 035 $a(oapen)https://directory.doabooks.org/handle/20.500.12854/94482 035 $a(EXLCZ)995470000001631594 100 $a20202212d2022 |y 0 101 0 $aeng 135 $aurmn|---annan 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aYellow River Basin Management under Pressure$ePresent State, Restoration and Protection 210 $aBasel$cMDPI - Multidisciplinary Digital Publishing Institute$d2022 215 $a1 electronic resource (276 p.) 311 $a3-0365-5670-2 330 $aEcological protection and high-quality development in the basin of the Yellow River, known as China?s ?Mother River? and ?the cradle of Chinese civilization?, have been receiving increasing attention because of the important role they play in China?s economic and social development, and its cultural heritage. Under ongoing climate change and intense human activities, the Yellow River basin is facing crucial challenges, e.g., flooding, water security, water resource shortage, water pollution, and ecological environment degradation, which seriously affects the sustainable development of the regional economy and society. Meanwhile, significant differences in key characteristics across the upper, middle, and lower reaches call for joint management efforts, including integrated management, water conservancy, and ecological environment restoration. This Special Issue focusses on the current state, challenges, and suggestions relating to Yellow River basin management and sustainable development under pressure, aiming to help improve ecological protection and achieve high-quality development. The following topics, including the management, restoration and protection of the Yellow River basin, and harmonious regulation of the human?water relationship were systematically studied. 517 $aYellow River Basin Management under Pressure 606 $aBusiness strategy$2bicssc 606 $aManagement of specific areas$2bicssc 610 $aGini coefficient 610 $afairness principle 610 $adouble-level 610 $awater-saving potential 610 $aWeihe River basin 610 $aBudyko framework 610 $arunoff changes 610 $aclimate change 610 $aunderlying surface parameters 610 $ahuman activities 610 $aYellow River 610 $acultivated land 610 $aObject-Oriented Feature Extraction 610 $awheat 610 $acorn 610 $awater use level 610 $aSBM-DEA model 610 $awindow-DEA model 610 $aeconomic and social development 610 $amatching degree 610 $ayellow river basin 610 $awater-energy-food 610 $aharmony equilibrium 610 $aharmonious regulation 610 $athe Yellow River 610 $abank collapse 610 $asediment transportation 610 $anumerical simulation 610 $acurved channel 610 $acohesive 610 $across-sectional shape 610 $aasymmetry 610 $awater and sediment factor 610 $atransverse distribution 610 $awandering river channel 610 $aWuliangsuhai Lake 610 $aecological water demand 610 $aecological water supplement 610 $aecological function 610 $aheavy metals 610 $asediment interstitial water 610 $asediment 610 $achemical fraction 610 $aecological risk 610 $awater quality characteristics 610 $acause 610 $agroundwater 610 $amiddle and lower reaches of the Yellow River 610 $awater rights allocation 610 $acoordinated development 610 $awater-ecology-energy-food 610 $aemergy method 610 $aYinchuan city 610 $areturn period 610 $aPearson-III distribution 610 $a"7.20" rainstorm 610 $aYiluo River basin 610 $aXiaohua section 610 $asoil erosion 610 $ainfluencing factors 610 $aRUSLE 610 $athe optimal parameters-based geographical detector 610 $ascale effects 610 $athe Yellow River Basin 610 $aSanhe region 610 $aearly sites 610 $aspatial and temporal distribution 610 $ahuman-territorial relationship 610 $aGIS 610 $ahigh-quality development 610 $aenvironmental regulation 610 $alocal government competition 610 $apanel threshold regression model 610 $aYellow River basin 610 $athe ancient Yellow River distributary 610 $aearly settlements 610 $aaggregation characteristics 610 $aZhengzhou 615 7$aBusiness strategy 615 7$aManagement of specific areas 700 $aZuo$b Qiting$4edt$01290156 702 $aDing$b Xiangyi$4edt 702 $aCui$b Guotao$4edt 702 $aZhang$b Wei$4edt 702 $aZuo$b Qiting$4oth 702 $aDing$b Xiangyi$4oth 702 $aCui$b Guotao$4oth 702 $aZhang$b Wei$4oth 906 $aBOOK 912 $a9910637794203321 996 $aYellow River Basin Management under Pressure$93021363 997 $aUNINA