Latvijas ozolu audžu augšņu raksturojums

OpenAIRE

Stalīdzāns, Didzis

2012-01-01

Maģistra darba mērķis ir noskaidrot augsnes faktora lomu parastā ozola (Quercus robur L.) izplatībai Latvijas teritorijā sastopamajās mežaudzēs. Maģistra darbā ir apkopota informācija par parastā ozola izplatības areālu Latvijas teritorijā un citviet pasaulē. Sniegts - parastā ozola ekoloģiskais raksturojums, raksturīgākie augšanas apstākļi, audžu atjaunošanās un ar to saistīto problēmu izklāsts. Pētījumā izlases veidā tika atlasīti 24 ozolu audžu parauglaukumi, kuros veikta audzes augsne...

Üleaedsed vaevad Ärma talus Euroopa koostööd ja tulevikku / Marko Suurmägi

Index Scriptorium Estoniae

Suurmägi, Marko, 1975-

2008-01-01

President Toomas Hendrik Ilvese kutsel tulid Ärma tallu kahepäevasele visiidile Läti president Valdis Zatlers ja proua Lilita Zatlere. Riigipeade kohtumise peateemad on Euroopa Liidu tulevik ja Balti riikide koostöö, erakorralise teemana kerkis üles Birma olukord seoses hiigeltormi tagajärgedega. Juuresoleval fotol istutavad presidendid puu Ärma talu Euroopa parki

Emission of particles in the 12 C + 12 C fusion

International Nuclear Information System (INIS)

Martinez Q, E.; Aguilera, E.F.; Rosales, P.

2002-01-01

A fusion process analysis of the 12 C + 12 C reaction is done, using the LILITA program. The analysis consisted mainly in varying the value of the Levels density parameter, determining on this way the value of such parameter which reproduces better the contribution of the different channels of fusion-evaporation of particles for this system at different energies. Moreover a comparison with measures done in the Instituto Nacional de Investigaciones Nucleares is realized. (Author)

Emission of particles in the {sup 12} C + {sup 12} C fusion; Emision de particulas en la fusion de {sup 12} C + {sup 12} C

Energy Technology Data Exchange (ETDEWEB)

Martinez Q, E.; Aguilera, E.F.; Rosales, P. [Instituto Nacional de Investigaciones Nucleares, A.P. 18-1027, 11801 Mexico D.F. (Mexico)

2002-07-01

A fusion process analysis of the {sup 12} C + {sup 12} C reaction is done, using the LILITA program. The analysis consisted mainly in varying the value of the Levels density parameter, determining on this way the value of such parameter which reproduces better the contribution of the different channels of fusion-evaporation of particles for this system at different energies. Moreover a comparison with measures done in the Instituto Nacional de Investigaciones Nucleares is realized. (Author)

Nuclear research with heavy ions

International Nuclear Information System (INIS)

Kaplan, M.

1991-08-01

This report discusses the following topics: Asymmetric fission of 149 Tb* from the finite-range, rotating-liquid-drop model: mean total kinetic energies for binary fragmentation; charged-particle evaporation from hot composite nuclei: evidence over a broad Z range for distortions from cold nuclear profiles; the role of reversed kinematics and double kinematic solutions in nuclear reactions studies; production of intermediate-mass-fragments in the reaction 98 Mo + 51 V at an excitation energy E* = 224-MeV; emission of light charged particles in the reaction 344-MeV 28 Si + 121 Sb; continued developments of the statistical evaporation code LILITA N90; and planning for heavy-ion-collision studies at very high energies: the STAR collaboration at RHIC

Nuclear research with heavy ions

International Nuclear Information System (INIS)

Kaplan, M.

1992-08-01

This report discusses the following topics; studies of light-charged-particle emission from fission and er reactions in the system 344-MeV 28 Si+ 121 Sb → 149 Tb; the role of reversed kinematics and double kinematic solutions in nuclear reactions studies; improvements in interactive data analysis and graphical representations; studies of the reaction 856-MeV 98 Mo + 51 V→ 149 Tb(E*=224-MeV): emission of intermediate-mass fragments; particle-particle correlations in compound nucleus reactions: preliminary consideration of lifetime estimates from small angle data; light particle emission studies using a new scintillator array; statistical evaporation calculations: developments with the computer codes LILITA-N90 and CASCADE; star collaboration studies: simulations for the conceptual design of the STAR detector system at RHIC; asymmetric fission of 149Tb* from the finite-range, rotating-liquid-drop model: mean total kinetic energies for binary fragmentation; and charged-particle evaporation from hot composite nuclei: evidence over a broad z range for distortions from cold nuclear profiles

Recent growth in Latvia and Estonia : have the benefits been shared by the poor? / Una Ozola

Index Scriptorium Estoniae

Ozola, Una

2003-01-01

Autor tutvustab Eestis ja Lätis läbi viidud uuringut, mille eesmärgiks oli tuua välja majanduskasvu diferentseeritud mõju erinevate sissetulekutega inimeste elujärjele. Uuringu tulemused ja Eesti ning Läti tulemuste võrdlus. Diagrammid

Pre-equilibrium emission and multifragmentation in heavy-ion collisions

International Nuclear Information System (INIS)

Karlsson, Leif.

1990-12-01

Subthreshold pion production has been studied with a beam of 12 C on targets of 12 C, 116 Sn and 124 Sn. Cross-sections for π +- production at 70 degrees C were obtained. The π + /π - ratio is close to unity for all targets. Coincidence measurements show a suppression of the projectile fragment when pions are detected. The target mass dependence in the differential cross-section is analysed with an absorption calculation. The fragmentation of nuclei has been studied in emulsion experiments with projectiles of Kr and 0 in an energy range of 5A to 2100A MeV. The maximum multiplicity is compared to various models. The LILITA code, at low energies, and a hadromchemical calculation, at high energies. The predicted fluctuations at the critical point, in the percolation model and the Copenhagen liquid-drop model, are not observed. The main ingredients in the dynamical nucleus-nucleus collision code which is developed is the expansion of the hot zone due to pressure differences, a time evolution by transport equations and a pre-equilibrium emission of particles. This model is compared with experimental data as well as with a VUU-calculation. The energy distribution is in both cases in good agreement. The comparison with experimental data, requires, however, a distorted potential. The differences in the angular distributions are large. (au)

Light particle emission measurements in heavy ion reactions: Progress report, June 1, 1988--May 31, 1989

International Nuclear Information System (INIS)

Petitt, G.A.

1989-01-01

We have completed another successful year of experimental work at the Heavy Ion Research Facility (HHIRF) and at Georgia State University (GSU). Since submitting our previous progress report we have completed our paper on neutron emission from products of the reaction 58 Ni + 165 Ho and it has been submitted to Physical Review C. Some of the details of these results are discussed below. We have installed the Vaxstation computer system for which we received supplemental funding from DOE during 1988-89 and it is being used to analyze the Ni + Ho data using the codes Pace and a modified version of Lilita, both of which we have been able to transfer to our Vaxstation systems from the Vax at ORNL with very minimal modification. The Exabyte tape drive which we ordered with the computer system was finally delivered at the end of January after months of delays. It is now being used to scan data tapes from our experiment to study neutron-neutron and neutron-charged-particle momentum correlations using the reaction 32 S + 197 Au at 25 MeV/nucleon. This data analysis can now proceed at a fast pace. Finally, we have continued our developmental work on the Hili detector system at ORNL, and have participated in experiments to study the predictions of the Dyabatic Dynamics model of particle emission using the Ni + Ni system and the HILI detector system