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Cyclic and rotational hybrid triple systems

Robert Gardner, Biagio Micale, Mario Pennisi, Rebecca Zijlstra
1997 Discrete Mathematics  
A hybrid triple system of order v, denoted HTS(v), is said to be cyclic if it admits an automorphism consisting of a single cycle of length v.  ...  Necessary and sufficient conditions are given for the existence of a cyclic HTS(v) and a rotational HTS(v).  ...  A c-hybrid triple system of order v, denoted c-HTS(v), is an arc-disjoint partition of D,, into c cyclic triples and t = b~ -c transitive triples.  ... 
doi:10.1016/s0012-365x(96)00036-2 fatcat:ybgjfjcw2fggphgmiwsl6wrq5y

Cyclic and rotational hybrid triple systems

Robert Gardner, Biagio Micale, Mario Pennisi, Rebecca Zijlstra
1997 Discrete Mathematics  
A hybrid triple system of order v, denoted HTS(v), is said to be cyclic if it admits an automorphism consisting of a single cycle of length v.  ...  Necessary and sufficient conditions are given for the existence of a cyclic HTS(v) and a rotational HTS(v).  ...  A c-hybrid triple system of order v, denoted c-HTS(v), is an arc-disjoint partition of D,, into c cyclic triples and t = b~ -c transitive triples.  ... 
doi:10.1016/s0012-365x(96)00148-3 fatcat:s6rp7duxajforoqd5pj67ry4dm

Page 41 of Mathematical Reviews Vol. , Issue 93a [page]

1993 Mathematical Reviews  
A c-hybrid triple system design c-HTD(v,A) is a partition of the arcs of the complete symmetric digraph, ADK,, in which each arc has multiplicity A, into c cyclic triples and Av(v — 1)/3—c transitive triples  ...  The necessary and sufficient conditions for cyclic extended triple systems are also established. K. T.  ... 

Page 6107 of Mathematical Reviews Vol. , Issue 98J [page]

1998 Mathematical Reviews  
and rotational hybrid triple systems.  ...  A c-hybrid triple system of order v, denoted c-HTS(v), is an arc-disjont partition of the complete symmetric digraph on v vertices into c cyclic triples and t= v(v—1)/3—c transitive triples.  ... 

Page 778 of Mathematical Reviews Vol. , Issue 97B [page]

1997 Mathematical Reviews  
Summary: “An oriented triple system @ on a v-set X is called an HTS(v, A) if it contains both cyclic and transitive triples such that each ordered pair of distinct elements is contained in exactly A triples  ...  Jiang [“On rotational Steiner triple systems: Five, seven and eleven”, Ars Combin., to appear] determined existence for k = 5,7,11. The existence for a (v — |)/2-rotational S(v) was determined by J.  ... 

Page 3445 of Mathematical Reviews Vol. , Issue 98F [page]

1998 Mathematical Reviews  
); Pennisi, Mario (1-CATN; Catania); Zijlstra, Rebecca |Calahan-Zijlstra, Rebecca] Cyclic and rotational hybrid triple systems.  ...  A c-hybrid triple system of order v, denoted c-HTS(v), is an arc-disjoint partition of the complete symmetric digraph on v vertices into c cyclic triples and t= v(v—1)/3—c transitive triples.  ... 

Spectroscopic Parameters of HTiCN/HTiNC: New Titanium Compounds of Astrochemical Interest

Pilar Redondo, Carmen Barrientos, Antonio Largo
2019 Astrophysical Journal  
level, including single and double excitations and a perturbative treatment of triple excitations (CCSD(T)).  ...  (HTiCN/HTiNC) and the cyclic arrangement HTi-CN.  ...  The effect, on the relative energies, of the inclusion of triple excitations at the CCSD level, in general is less than 1 kcal mol −1 , with the exception of the HC(Ti)N and HN(Ti)C cyclic structures (  ... 
doi:10.3847/1538-4357/aaf85b fatcat:hetmlqq4hnewbinude64ob7nge

Accumulation of collagen molecular unfolding is the mechanism of cyclic fatigue damage and failure in collagenous tissues

Jared L. Zitnay, Gang Seob Jung, Allen H. Lin, Zhao Qin, Yang Li, S. Michael Yu, Markus J. Buehler, Jeffrey A. Weiss
2020 Science Advances  
Here, we used collagen hybridizing peptides to measure collagen molecular damage during tendon cyclic fatigue loading and computational simulations to identify potential explanations for our findings.  ...  Our results revealed that triple-helical collagen denaturation accumulates with increasing cycles of fatigue loading, and damage is correlated with creep strain independent of the cyclic strain rate.  ...  damage and to develop methods using triplehelical hybridization to promote and monitor tissue healing.  ... 
doi:10.1126/sciadv.aba2795 pmid:32923623 pmcid:PMC7455178 fatcat:6nxuyato5radrmo7pidpyikezy

High stability and activity of Pt electrocatalyst on atomic layer deposited metal oxide/nitrogen-doped graphene hybrid support

Niancai Cheng, Jian Liu, Mohammad Norouzi Banis, Dongsheng Geng, Ruying Li, Siyu Ye, Shanna Knights, Xueliang Sun
2014 International journal of hydrogen energy  
The enhanced activity and durability were attributed to the unique triple-interaction of ZrO 2 ePteNGNs.  ...  activity of Pt electrocatalyst on atomic layer deposited metal oxide/nitrogen-doped graphene hybrid support, International Journal of Hydrogen Energy (2014), http://dx.  ...  An oxygen reduction reaction (ORR) linear sweep voltammetry (LSV, 5 mV s À1 ) was conducted in an O 2 -saturated 0.5 M H 2 SO 4 on the rotating-disk electrode system (Pine Instruments).  ... 
doi:10.1016/j.ijhydene.2014.01.202 fatcat:s4qx2ux6vzafraqvfrbpeepnxm

Correction of the combustion engine run irregularity in hybrid systems

Antoni Iskra
2010 Polish Maritime Research  
Such system is the basic one in numerous hybrid car available on the market but the concept of using an electrical machine for reduction of rotational speed changeability amplitude in reciprocating machines  ...  This idea consists in generation of braking torque by the electric machine whenever the coupling shaft increases its rotational speed and vice versa, driving the system when the momentary speed is lower  ...  The presented considerations about the possibility of reduction the torsional vibrations in hybrid systems relate to the specific parameters of engine operation.  ... 
doi:10.2478/v10012-010-0008-1 fatcat:o4bibvhuajczrmkr272o43iuka

Author index to volume 175 (1997)

1997 Discrete Mathematics  
Pennisi and R. Zijlstra, Cyclic and rotational hybrid triple systems (1 3) 143-161 Gilbert, G.T., see J. Berenbom (1-3) 23-33 Gurgel, M.A.C.M. and Y.  ...  Bollobis (1-3) 253-257 Isaksen, D.C. and D.P. Moulton, Randomly planar graphs (Note) . and E.C. Milner, The ANTI-order and the fixed point property for caccc posets (1-3) 197-209 Lin, X., M. Zhu, Z.  ... 
doi:10.1016/s0012-365x(97)86531-4 fatcat:m2fg5trd7vgxnc3rvr3nuhmyiy

Self-assembled cyclic oligothiophene nanotubes: Electronic properties from a dispersion-corrected hybrid functional

Bryan M. Wong, Simon H. Ye
2011 Physical Review B  
The band structure and size-scaling of electronic properties in self-assembled cyclic oligothiophene nanotubes are investigated using density functional theory (DFT) for the first time.  ...  In order to simultaneously describe both the π-π stacking interactions and the global electronic band structure of these nanotubes, we utilize a dispersion-corrected B3LYP-D hybrid functional in conjunction  ...  , and strongly-correlated systems  ... 
doi:10.1103/physrevb.84.075115 fatcat:26xq7kh2r5hv7g3pf2h7pr6puq

The Hunt for Reactive Alkynes in Bio-Orthogonal Click Reactions: Insights from Mechanochemical and Conceptual DFT Calculations

Tom Bettens, Mercedes Alonso, Paul Geerlings, Frank De Proft
2020 Chemical Science  
The reactivity of | r | the triple bond in cyclic systems was simulated by imposing the geometry constraint on both angles and, at the same time, freezing the C-C≡C-C dihedral angle to 0˚ to prevent the  ...  repeated for different substituents on the sp 3 hybridized C-atom (see Figure 3a ).  ... 
doi:10.1039/c9sc04507d pmid:34123268 pmcid:PMC8148320 fatcat:ir4wxdonbbaxblscvnlzpx3is4

Grain Boundary Effects on Microstructural Stability of Nanocrystalline Metallic Materials [chapter]

Xiaofei Zhu, Guangping Zhang, Cheng Yan
2017 Study of Grain Boundary Character  
In general, grain boundaries have a high energy level and there exists a thermodynamic driving force to reduce the overall area of grain boundaries through grain coarsening, making NC material systems  ...  Finally, several key issues for improving the microstructure stability of NC metallic materials and possible future work are discussed.  ...  Acknowledgements This research was supported by the Australian Research Council Discovery Project (DP150101717) and the Joint Foundation of Liaoning Province National Science Foundation and Shenyang National  ... 
doi:10.5772/66426 fatcat:js56ua4vrvbknkptalqx3dqs2y

Ab Initio Calculations for Detectable New Isomers of Interstellar Carbon-Chain Radicals Cn(n=2–8)

Junko Takahashi
2000 Nippon Tenmon Gakkai obun kenkyu hokoku  
The formation mechanisms of C3H and C 5 H were also examined, and it was found that both linear-and 3-ring-C3H and C5H can be formed via neutral-neutral reactions, C + C2H2 -> C3H + H and C + C4H2 -> C5H  ...  These facts strongly suggest that carbon-ring-chain radicals, C5H and C7H, are a new series of interstellar molecules that will be detectable in the laboratory and interstellar space.  ...  There are alternating shorter and longer C-C bonds in the chain, where the lengths of shorter and longer bonds nearly equal to those of carbon-carbon triple and single bonds, respectively.  ... 
doi:10.1093/pasj/52.3.401 fatcat:he6zbm5dhvfttfev2x4abpkbqy
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