Search results for "Branch"
showing 10 items of 1278 documents
A graph colouring model for assigning a heterogeneous workforce to a given schedule
1996
Abstract We analyze a heterogeneous workforce assignment problem in which the minimum number of workers required to carry out a machine load plan is calculated. The problem is formulated as a restricted vertex colouring problem and a branch and bound algorithm is presented. The special characteristics of the graph to be coloured allow an efficient implementation of the branch and bound. Computational results show that the algorithm can solve problems of 50 activities, 5, 10 and 15 machines and between 2 to 15 different types of workers in just a few seconds.
Combination of Searches for Invisible Higgs Boson Decays with the ATLAS Experiment
2019
Dark matter particles, if sufficiently light, may be produced in decays of the Higgs boson. This Letter presents a statistical combination of searches for H → invisible decays where H is produced according to the standard model via vector boson fusion, Z(ℓℓ)H, and W/Z(had)H, all performed with the ATLAS detector using 36.1 fb⁻¹ of pp collisions at a center-of-mass energy of √s = 13 TeV at the LHC. In combination with the results at √s = 7 and 8 TeV, an exclusion limit on the H → invisible branching ratio of 0.26(0.17-0.05+0.07) at 95% confidence level is observed (expected).
Irreducible components of Hurwitz spaces of coverings with two special fibers
2013
In this paper we prove new results of irreducibility for Hurwitz spaces of coverings whose monodromy group is a Weyl group of type B_d and whose local monodromies are all reflections except two.
Ośrodki studiów teologicznych diecezji opolskiej
2022
Istotnym elementem formacji chrześcijańskiej, obok działalności katechetycznej, są studia teologiczne, które służą pogłębieniu zrozumienia wiary Kościoła i bardziej skutecznego głoszenia orędzia chrześcijańskiego, odpowiadającego uwarunkowaniom społecznym i kulturowym konkretnych czasów. W diecezji opolskiej w ostatnim półwieczu zadanie to było realizowane przez trzy instytucje: Wyższe Międzydiecezjalne Seminarium Duchowne w Opolu, Instytut Teologiczno-Pastoralny, Filię KUL w Opolu, oraz Wydział Teologiczny Uniwersytetu Opolskiego. Niniejszy artykuł przedstawia najważniejsze aspekty działalności w zakresie studiów teologicznych poszczególnych jednostek diecezji opolskiej od momentu jej utwo…
Atomic transition probabilities for selected Yb II lines emitted from a ferroelectric plasma source
2010
The relative intensities of several hundred emission lines of Yb II between 200 nm and 900 nm were obtained with the use of ferroelectric plasma source. These relative intensities obtained for lines from 21 energy levels have been used to determine the line branching fractions, which have then been combined with accurate experimental radiative lifetime measurements to give absolute transition probabilities for 111 Yb II lines. The obtained values were compared with theoretical and experimental data taken from available literature.
On the classification of Kim and Kostrikin manifolds
2006
International audience; We completely classify the topological and geometric structures of some series of closed connected orientable 3-manifolds introduced by Kim and Kostrikin in [20, 21] as quotient spaces of certain polyhedral 3-cells by pairwise identifications of their boundary faces. Then we study further classes of closed orientable 3-manifolds arising from similar polyhedral schemata, and describe their topological properties.
The two-photon decay of X(6900) from light-by-light scattering at the LHC
2022
The LHCb Collaboration has recently discovered a structure around 6.9 GeV in the double-$J/\psi$ mass distribution, possibly a first fully-charmed tetraquark state $X(6900)$. Based on vector-meson dominance (VMD) such a state should have a significant branching ratio for decaying into two photons. We show that the recorded LHC data for the light-by-light scattering may indeed accommodate for such a state, with a $\gamma \gamma$ branching ratio of order of $10^{-4}$, which is larger even than the value inferred by the VMD. The spin-parity assignment $0^{-+}$ is in better agreement with the VMD prediction than $0^{++}$, albeit not significantly at the current precision. Further light-by-light…
Les parcs d’activités sportives récréatives en forêt
2007
International audience; Les activités sportives touristiques ou de loisirs en forêt, à cause de leur croissance et de leur diversification, sont devenues un fait social en France. Elles se segmentent régulièrement, ce qui induit la création de nouvelles activités comme l’accrobranche et le paintball. Les « pionniers » d’une nouvelle activité sont motivés par sa nouveauté, son caractère distinctif (Bourdieu, 1979 ; Pociello, 1995) et la faible densité des pratiquants sur les sites secrets (Maurice, 1987) qui seront fatalement dévoilés à terme au grand public (Kalaora, 1993 ; Vigarello, 1981). Les espaces de pratique en forêt sont, au départ, des sites choisis par leurs adeptes pour leurs car…
New technologies can support data collection on endangered shark species in the Mediterranean Sea
2022
In the last 50 yr, shark populations showed steep declines in the Mediterranean Sea. The IUCN lists most Mediterranean species as threatened (55%), while considering 27.5% of them Data Deficient. Here, sharks are currently one of the rarest and more elusive groups of animals, and data from fisheries and scientific monitoring still insufficiently support robust abundance and distribution assessments. New technologies can fill this data gap by linking people and scientists through new monitoring strategies. SharkPulse, an international collaborative project, aims at creating a large world database of shark occurrence records by mining images on the web, social networks, and private archives. …
Anatomy of nerves of the lower extremities in the context of the treatment for varicose veins
2019
Injury of nerves of the lower extremity is the most prevalent complication associated with invasive treatment of varicose veins. These adverse events are particularly frequent after traditional surgical stripping and thermal ablative procedures. The most frequently injured nerves comprise the saphenous nerve, the sural nerve, and the anterior cutaneous branch of the femoral nerve. The high rate of injury to these nerves is primarily related to their close anatomical relationship with major trunks of the superficial venous system. The great saphenous vein is accompanied by two groups of sensory nerves. In its proximal part it runs along the anterior cutaneous branch of the femoral nerve. In …