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排序方式: 共有45条查询结果,搜索用时 15 毫秒
1.
Optimization technologies and environmental applications 总被引:1,自引:0,他引:1
2.
Ammar R Ball RC Banerjee S Bhat PC Bosetti P Bromberg C Canough GE Coffin T Dershem TO Dixon RL Fenker HC Ganguli SN Gensch U Girtler P Goshaw AT Grard F Gurtu A Hamilton C Henri VP Hernandez JJ Hrubec J Iori M Jones LW Kuhn D Knauss D Leedom ID Legros P Lemonne J Leutz H Liu X Malhotra PK Marraffino JM Mendez GE Miller R Naumann T Nguyen A Nowak H Pilette P Poirier J Poppleton A Raghavan R Rasner K Reucroft S Robertson WJ Roe BP Roth A Senko M Struczinski W Subramanian A Touboul MC Vonck B 《Physical review letters》1988,61(19):2185-2188
3.
V. V. Aivazyan I. V. Ajinenko Yu. A. Belokopytov P. C. Bosetti H. B?ttcher F. Botterweck P. V. Chliapnikov F. Crijns A. De Roeck E. A. De Wolf Th. Driever K. Dziunikowska A. Eskreys W. Friebel Z. C. Garutchava V. G. Gavrjusev H. Graessler P. van Hal T. Haupt W. Kittel S. S. Megrabyan F. Meijers A. B. Micha?owska V. I. Nikolaenko L. C. S. Oliveira K. Olkiewicz L. P. Petrovikh E. Riipinen V. M. Ronjin A. M. Rybin H. M. T. Saarikko W. Schmitz L. Scholten R. Schulte O. G. Tchikilev L. A. Tikhonova A. G. Tomaradze V. A. Uvarov F. Verbeure R. Wischnewski A. Wróblewski S. A. Zotkin NA Collaboration 《Zeitschrift fur Physik C Particles and Fields》1989,42(4):533-542
Forward-backward multiplicity correlations in σ+,K + p andpp collisions at 250 GeV/c ( \(\sqrt s \) =22 GeV) are given for all charges and for the different charge combinations. The correlations are found to be caused predominantly by centrally produced particles. It is demonstrated that this result is an agreement with observations at the ISR and the CERNp \(\bar p\) -Collider. The results are compared to expectations from LUND, DPM and FRITIOF Monte Carlo models and a geometrical picture relating correlations in hadron-hadron collisions toe + e ? data in terms of impact parameters is tested. 相似文献
4.
Gehe & Co. Th Wimmel Ed Hirschsohn und E. Bosetti 《Fresenius' Journal of Analytical Chemistry》1897,36(1):803-807
Ohne Zusammenfassung 相似文献
5.
R. A. Broglia T. Døssing M. Matsuo E. Vigezzi P. Bosetti A. Bracco S. Frattini B. Herskind S. Leoni P. Rasmussen 《Zeitschrift für Physik A Hadrons and Nuclei》1987,356(3):259-262
Rotational motion loses its coherence as a function of the nuclear internal excitation energy. The damping process does not proceed in a continuous fashion and scars of discrete rotational bands are found, inbedded in a background of damped rotational states, regardless whether the calculations are carried out using effective or “random” forces. The complexity of the damping mechanism is revealed in the lineshape of the ridges in the γ-γ correlation spectrum. 相似文献
6.
P. Bosetti M. Deutschmann H. Grässler G. Otter H.H. Seyfert K. Böckmann J. Hofmann J. Lowsky G. Zobernig V.T. Cocconi T. Coghen V. Karimäki G. Kellner D.R.O. Morrison J. Zaorska 《Nuclear Physics B》1975,94(1):21-38
The production of is measured in π+p reactions at 16 GeV/c. The total strange particle cross section is found to be 4.0 ± 0.3 mb, about 20% of the inelastic cross section. Cross sections for single strange particles and for strange particle pairs are determined, both inclusively and as functions of the charged multiplicity. Relative production rates for different strange particle combinations are compared with the prediction of the isospin statistical model. Inclusive spectra for single particles are studied and it is found the KS0 are produced mostly in the forward hemisphere, most probably by fragmentation of the incident pion into . The Λ are mostly backwards, probably deriving from fragmentation of the proton into ΛK pairs. The tend to be produced forwards, but evidence is found for central production. Distributions in rapidity of the Λ particles from π+p interactions are compared in terms of the factorisation hypothesis. Results are given on the Λ transversal polarisation. 相似文献
7.
E. Vigezzi T. Døssing M. Matsuo K. Yoshida P. Bosetti A. Bracco S. Frattini B. Herskind S. Leoni 《Zeitschrift für Physik A Hadrons and Nuclei》1997,358(2):207-211
We present shell model calculations for warm rotating nuclei, combining the cranked Nilsson mean field and a residual surface-delta two-body interaction. The model is used to describe the transition from the region of well-defined rotational bands into the region dominated by rotational damping, and the results are in overall agreement with the experimental findings. 相似文献
8.
Adhesives used in food packaging to glue different materials can provide several substances as potential migrants, and the identification of potential migrants and migration tests are required to assess safety in the use of adhesives. Solid-phase microextraction in headspace mode and gas chromatography coupled to mass spectrometry (HS-SPME-GC-MS) and ChemSpider and SciFinder databases were used as powerful tools to identify the potential migrants in the polyurethane (PU) adhesives and also in the individual plastic films (polyethylene terephthalate, polyamide, polypropylene, polyethylene, and polyethylene/ethyl vinyl alcohol). Migration tests were carried out by using Tenax(?) and isooctane as food simulants, and the migrants were analyzed by gas chromatography coupled to mass spectrometry. More than 63 volatile and semivolatile compounds considered as potential migrants were detected either in the adhesives or in the films. Migration tests showed two non-intentionally added substances (NIAS) coming from PU adhesives that migrated through the laminates into Tenax(?) and into isooctane. Identification of these NIAS was achieved through their mass spectra, and 1,6-dioxacyclododecane-7,12-dione and 1,4,7-trioxacyclotridecane-8,13-dione were confirmed. Caprolactam migrated into isooctane, and its origin was the external plastic film in the multilayer, demonstrating real diffusion through the multilayer structure. Comparison of the migration values between the simulants and conditions will be shown and discussed. 相似文献
9.
F. Camera P. Bosetti A. Bracco D. Gnaccolini M. Mattiuzzi J. J. Gaardhøje I. G. Bearden T. Tveter Z. Zelazny A. Maj 《Acta Physica Hungarica A》1995,2(3-4):279-298
The high energy gamma decay of the GDR in rotating excited nuclei formed by heavy ion fusion reactions is studied. 相似文献
10.
Integrating stochastic programming and decision tree techniques in land conversion problems 总被引:1,自引:0,他引:1
This paper is concerned with gradual land conversion problems, placing the main focus on the interaction between time and
uncertainty. This aspect is extremely relevant since most decisions made in the field of natural resources and sustainable
development are irreversible decisions. In particular, we discuss and develop a scenario-based multi-stage stochastic programming
model in order to determine the optimal land portfolio in time, given uncertainty affecting the market. The approach is then
integrated in a decision tree framework in order to account for domain specific (environmental) uncertainty that, diversely
from market uncertainty, may depend on the decision taken. Although, the designed methodology has many general applications,
in the present work we focus on a particular case study, concerning a semi-degraded natural park located in northern Italy. 相似文献