319 research outputs found
EMF Deviation of Chromel/Alumel Thermocouples Caused by Neutron Irradiation (Irradiation Experiment TIC-01). EUR 3257.
A Canted Double Undulator System with a Wide Energy Range for EMIL
At BESSY II a canted double undulator system for the Energy Materials In situ Laboratory EMIL is under construction. The energy regime is covered with two undulators, an APPLE II undulator for the soft and a cryogenic permanent magnet undulator CPMU 17 for the hard photons. The layout and the performance of the undulators are presented in detail. The minimum of the vertical betatron function is shifted to the center of the CPMU 17. The neighboring quadrupoles and an additional quadrupole between the undulators control the vertical betatron function. Prior to the undulator installation a testing chamber with four movable vertical scrapers has been implemented at the CPMU 17 location. Utilizing the scrapers the new asymmetric lattice optics will be tested and optimize
Notulae to the Italian native vascular flora: 3.
In this contribution new data concerning the distribution of native vascular flora in Italy are presented. It includes new records, exclusions, and confirmations to the Italian administrative regions for taxa in the genera Asplenium, Bolboschoenus, Botrychium, Chamaerops, Crocus, Galeopsis, Grafia, Helosciadium, Hieracium, Juniperus, Leucanthemum, Lolium, Medicago, Phalaris, Piptatherum, Potamogeton, Salicornia, Salvia, Seseli, Silene, Spiraea, Torilis and Vicia. Rhaponticoides calabrica is proposed as synonym novum of R. centaurium. Furthermore, new combinations in the genera Galatella and Lactuca are proposed
Notulae to the Italian native vascular flora: 2
In this contribution new data concerning the Italian distribution of native vascular flora are presented.
It includes new records, exclusions, and confirmations to the Italian administrative regions for taxa in
the genera Arctostaphylos, Artemisia, Buglossoides, Convolvulus, Crocus, Damasonium, Epipogium, Ficaria,
Filago, Genista, Heptaptera, Heracleum, Heteropogon, Hieracium, Myosotis, Ononis, Papaver, Pilosella, Polygonum,
Pulmonaria, Scorzonera, Silene, Trifolium, Vicia and Viola
The status of the in vacuum APPLE II IVUE32 at HZB BESSY II
At BESSY II, two new beamlines for RIXS and for X Ray microscopy need a short period variably polarizing undulator. For this purpose, the first in vacuum APPLE II undulator worldwide is under construction. The parameters are as follows period length amp; 955;0 32 mm, periods 78, minimum gap 7mm. The design incorporates a force compensation scheme as proposed by two of the authors at the SRI 2018. All precision parts of the drive chain are located in air. New transverse slides for the transversal slit adjustment have been developed and tested. Optical Micrometers measure the gap and phase positions, similar to the system of the CPMU17 at BESSY II. They provide the signals for motor feedback loops. A new UHV compatible soldering technique, as developed with industry, relaxes fabrication tolerances of magnets and magnet holders and simplifies the magnet assembly. A 10 period prototype has been setup for lifetime tests of the new magnetic keeper design. The paper summarizes the status of the undulator IVUE3
Notulae to the Italian native vascular flora: 9
In this contribution, new data concerning the distribution of native vascular flora in Italy are presented. It includes new records, confirmations, exclusions, and status changes to the Italian administrative regions. Two new combinations are proposed. Nomenclatural and distribution updates, published elsewhere, and corrigenda are provided as Suppl. material
Notulae to the Italian native vascular flora: 9
In this contribution, new data concerning the distribution of native vascular flora in Italy are presented. It includes new records, confirmations, exclusions, and status changes to the Italian administrative regions. Two new combinations are proposed. Nomenclatural and distribution updates, published elsewhere, and corrigenda are provided as Suppl. material 1
An updated checklist of the vascular flora native to Italy
An updated inventory of the native vascular flora of Italy, providing details on the occurrence at regional
level, is presented. The checklist includes 8195 taxa (6417 species and 1778 subspecies), distributed in
1092 genera and 152 families; 23 taxa are lycophytes, 108 ferns and fern allies, 30 gymnosperms and 8034
angiosperms. The taxa currently occurring in Italy are 7483, while 568 taxa have not been confirmed in
recent times, 99 are doubtfully occurring in the country and 19 are data deficient. Out of the 568 not
confirmed taxa, 26 are considered extinct or possibly extinct
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