01355nas a2200193   4500008004100000022001400041245015500055210006900210260007100279300001400350490000700364520056600371100001700937700002100954700002200975700002500997700002501022856011401047       2005                        eng d  a0022-326300aSynthesis and intramolecular nitrile oxide cycloaddition of 3,5 `-ether-linked pseudooligosaccharide derivatives: an approach to chiral macrooxacycles0 aSynthesis and intramolecular nitrile oxide cycloaddition of 35 e  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcOCT  a8579-85820 v703 a<p>[GRAPHIC] 3,5'-Ether-linked pseudooligopentose derivatives were synthesized for the first time from readily available carbohydrate precursors. The 1,2-isopropylidene-protected ether-linked oligopentoses are potentially important as precursors of novel RNA analogues. Intramolecular cycloaddition of the nitrile oxides prepared from these derivatives led to the diastereoselective formation of chiral isoxazolines fused to 10-16-membered oxacycles. The stereochemistry of some of these isoxazolines was established by X-ray diffraction and NOESY analysis.</p>1 aSengupta, J.1 aMukhopadhyay, R.1 aBhattacharjya, A.1 aBhadbhade, Mohan, M.1 aBhosekar, Gaurav, V.  uhttps://library.ncl.res.in/content/synthesis-and-intramolecular-nitrile-oxide-cycloaddition-35-ether-linked-101255nas a2200193   4500008004100000022001400041245014900055210006900204260010600273300001400379490000700393520043000400100001200830700002400842700002500866700002100891700002200912856012700934       2006                        eng d  a0040-403900aCu(I)-catalyzed cycloaddition of constrained azido-alkynes: access to 12- to 17-membered monomeric triazolophanes incorporating furanoside rings0 aCuIcatalyzed cycloaddition of constrained azidoalkynes access to  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcAPR  a2775-27780 v473 a<p>A strained monomeric 12-membered triazolophane was formed by the Cu(I)-catalyzed intramolecular cycloaddition of an azide to an alkyne having a constrained tether incorporating ail aromatic ring and a furanoside ring. Similar cycloadditions of azido-alkynes having ester, furanoside and peptidic tethers led to the formation of monomeric triazolophanes of higher ring sizes. (c) 2006 Elsevier Ltd. All rights reserved.</p>1 aRay, A.1 aManoj, Kochunnoonny1 aBhadbhade, Mohan, M.1 aMukhopadhyay, R.1 aBhattacharjya, A.  uhttps://library.ncl.res.in/content/cui-catalyzed-cycloaddition-constrained-azido-alkynes-access-12-17-membered-monomeric-001624nas a2200265   4500008004100000020002200041022001400063245011200077210006900189260013500258300001400393490000900407520061800416653001101034653002401045653002301069653001701092100002401109700002201133700001801155700001501173700002001188700002101208856012901229       2012                        eng d  a978-0-7354-1044-2  a0094-243X00aNoble metal ions incorporated in lattice points of perovskites - water gas shift activity of BaCe1-xPtxO3-d0 aNoble metal ions incorporated in lattice points of perovskites w  a2 Huntington Quadrangle, Ste 1no1, Melville, NY 11747-4501 USAbGovt India, Dept Atom Energy (DAE), Board Res Nucl Sci (BRNS)cJUN  a1277-12780 v14473 a<p>Recently precious metals supported on oxides were reported to be very promising catalysts for the lower-temperature WGS reaction. Here we report the synthesis of platinum doped barium cerate and its use as catalysts for WGS reaction. It has been found that maximum CO conversion was obtained at 350 degrees C which enhanced after the first cycle. XPS analysis shows that after the first cycle more ionic Platinum species are present on the surface of the catalyst. Neutron diffraction at room temperature shows that the oxygen vacancies are in the O2 position and increases with increasing Pt substitution.</p>10aBaCeO310aNeutron diffraction10aPlatinum catalysis10aWGS reaction1 aJijil, Chamundi, P.1 aRajarajan, A., K.1 aDevi, Nandini1 aMittal, R.1 aChauhan, A., K.1 aMukhopadhyay, R.  uhttps://library.ncl.res.in/content/noble-metal-ions-incorporated-lattice-points-perovskites-water-gas-shift-activity-bace1-002029nas a2200253   4500008004100000022001400041245008500055210006900140260009200209300001000301490000800311520115200319653001201471653001601483653001401499653001401513653001401527100002401541700003101565700001501596700002701611700002101638856011601659       2013                        eng d  a0040-500000aStructure-property relationship of different types of polyester industrial yarns0 aStructureproperty relationship of different types of polyester i  a4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLANDbTAYLOR & FRANCIS LTDcJAN  a35-450 v1043 a<p>Four major types of polyester industrial yarns (1000 Denier) which are used commercially were studied for their key structural parameters. An attempt has been made to establish a relationship between morphology and properties of these yarns. High tenacity (HT) polyester yarn has the highest birefringence, amorphous orientation, and long period but is relatively less crystalline. High shrinkage characteristic of HT polyester yarn can be accounted for its higher amorphous orientation. High modulus low shrinkage (HMLS) polyester yarn has higher crystallinity and crystal size compared to HT yarn. Fraction of tie molecules of these yarns has been calculated and found that low shrinkage (LS) and super low shrinkage (SLS) yarns have lesser tie molecules. These LS and SLS yarns are tailor-made to achieve lower shrinkage and at the same time maintaining a good level of tenacity. This is achieved with lower amorphous orientation in the final drawn yarn structure. Amorphous orientation was found to have stronger influence than any other structural parameter on the key yarn properties like modulus, tenacity, elongation, and shrinkage.</p>10amodulus10aorientation10apolyester10ashrinkage10astructure1 aSamui, Barun, Kumar1 aPrakasan, Manikanda, Priya1 aRamesh, C.1 aChakrabarty, Debabrata1 aMukhopadhyay, R.  uhttps://library.ncl.res.in/content/structure-property-relationship-different-types-polyester-industrial-yarns-002059nas a2200265   4500008004100000022001400041245009800055210006900153260009400222300001400316490000800330520114900338653001001487653001201497653001401509653001401523653001401537653001401551100002401565700002101589700002101610700001501631700002701646856012001673       2016                        eng d  a0040-500000aStudies on the static and dynamic properties of different types of polyester industrial yarns0 aStudies on the static and dynamic properties of different types   a2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLANDbTAYLOR & FRANCIS LTDcOCT  a1175-11840 v1073 a<p>Four major types of polyester industrial yarns, viz. high tenacity (HT), high modulus low shrinkage (HMLS), low shrinkage (LS) and super low shrinkage (SLS) polyester yarns, were studied for their static and dynamic properties. An attempt has been made to establish a linkage between static and dynamic properties of these yarns with its structure and with its end applications. HMLS and HT polyester yarns have lower tan delta and work loss, which are the desired characteristics required for its end applications which include tire and conveyer belt. Higher overall orientation and higher fraction of tie molecules helped to achieve these properties in HT and HMLS polyester yarns. LS and SLS polyester yarns are mostly used for static applications. Low thermal shrinkage is the key requirement for the downstream processes of these yarns. Lower amorphous orientation in these two yarns is primarily responsible for achieving very low thermal shrinkage. A good co-relation has been established between the peak temperature of work loss (in slow speed hysteresis test) and the peak temperature of tan delta (in high-speed dynamic test).</p>10acreep10amodulus10apolyester10ashrinkage10atan delta10awork loss1 aSamui, Barun, Kumar1 aDasgupta, Saikat1 aMukhopadhyay, R.1 aRamesh, C.1 aChakrabarty, Debabrata  uhttps://library.ncl.res.in/content/studies-static-and-dynamic-properties-different-types-polyester-industrial-yarns