1,453 research outputs found
Nyugati folyóiratokban található meg a japán tudomány krémje?
No full textSTANKUS. T.-ROSSEEL, K.— LITTLEFIELD, W. C: Is the best Japanese science in western journals? = The Serials Librarian, 14. köt. 1-2. sz. 1988. p. 95-107
Assessment of Dynamic Spectrum Allocation in Realistic Mobile Networks
No full textSince the advent of radio communications, radio spectrum has been increasingly getting crowded with different kinds of applications. Different radio communications systems have been developed for various purposes and multiple actors became interested in using these systems at the same time and space. Such situation inevitably led to the point when practically entire usable radio spectrum became occupied by different actors. To alleviate this problem, Dynamic Spectrum (Re)Allocation (DSA) has been proposed, which is a branch of frequency spectrum management that aims to improve spectrum usage efficiency and end-user experience by introducing more flexibility to spectrum usage. This thesis aims to provide additional insight into DSA applicability and effectiveness in a typical realistic cellular network, in intra-operator scenario, taking into account 2G and 4G radio technologies, with the aim of improving 4G performance without adverse impact to 2G. We use realistic dynamic system level simulations to assess DSA performance in the selected cellular network areas that can be classified as urban, suburban and rural. Our simulation results show that DSA is capable of improving 4G throughput without adverse impact to 2G performance in all simulated areas. Among the simulated areas, urban area benefits from DSA most, as significant throughput gains for 4G are achieved without adverse impact to 2G performance, while simulations show that spectrum refarming is clearly not an option for this type of area. However, throughput gains for 4G in urban area are limited during the busy-hours. Suburban and rural areas indicate benefits from DSA too, however the difference between DSA and spectrum refarming in these areas is diminishing. Hence, with reasonable half-rate timeslot tolerance for 2G voice calls, spectrum refarming could be an option in the simulated suburban and rural areas.Electrical EngineeringNetwork Architectures and ServicesElectrical Engineering, Mathematics and Computer Scienc
Land forces soldier’s systems development (needs and opportunities).
No full textNowadays. the topic of the thesis is relevant, because it concerns the fast developing and one of the most important projects in Lithuanian armed forces called the „Modern Soldier“. The focus of the project is towards the individual equipment and weaponry. Also, in this thesis, the author will concentrate on the individual equipment of Lithuanian armed forces soldier. Lithuanian armed forces soldier equipment was not analysed by Lithuanian authors. Due to that, it is relevant to assess the situation and the perspectives of the new Lithuanian soldier’s equipment in the context of other foreign countries. Methodology – author has chosen the empiric qualitative research, because it helps to understand the problem of the thesis and it is the most comprehensive. In addition, in the theoretical part of the thesis, a comparison between the different countries and their soldiers’ equipment was made. The evaluation of the results showed that the worst logistic situation is in the Lithuanian Military Academy and Lithuanian Volunteer Forces. The suggestion would be that the elements of the equipment should not be bought separately, but rather together as a whole. Due to that, it would allow to avoid the problem of incompatibility. All systems and elements should be modern and updated. Hypothesis: Lithuanian armed forces soldier’s equipment fits the requirements of other foreign countries through complex elements and used technologies
Modifikuotosios L-funkcijos
No full textThe sequence of generalized prime numbers q0 = 1, qn = pkn+1 -1, n ∈ N, and the corresponding zeta-function Zk(s) = \prodp>2( 1 - (pk - 1)-s)-1 , s = σ + it, are analyzed. The analyticity of Zk(s) in the domain σ > 0, except for a simple pole s = 1/k , is proved.Darbe įrodytas funkcijos Zk(s) = \prodp>2( 1 - (pk - 1)-s)-1 susijusios su Žordano aritmetine funkcija Jk(n) = nk\prodp|n (1 - 1/pk), k ∈ N, analiziškumas srityje σ > 0, išskyrus paprastą polių taške s = 1/ k su rezidiumuRk = 1/2k \prodp>2 (1 -p-1\1-(pk-1)- 1/ k. Įrodant šį teiginį funkcija Zk(s) užrašoma pavidalu Zk(s) = (1 - 2-ks)ζ(ks)Qk(s); čia ζ(s) yra Rymano dzeta funkcija, o funkcija Qk(s) – analizinė pusplokštumėje σ > 0
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Initial State Temperature and Degrees of Freedom in SPS A+A Collisions
No full textA dramatic rise in the heat capacity eT4 of high-temperature nuclear/QGP matter has been a long-standing prediction in high-energy heavy-ion physics, but is difficult to verify directly. Initial-state energy densities, measured through calorimetery, and limits on initial-state temperature, inferred through measurement of high-PT direct photons, can be combined to provide a nearly model-independent lower limit on the beat capacity of initial-state matter in A+A collisions at the CERN-SPS. This is the most direct evidence to date for the rise in the heat capacity, and the implied new degrees of freedon, in high-temperature nuclear matter
Oilerio sandaugų analizinio pratęsimo klausimu
No full textThere is not abstract.The sequence of generalized primes {v(p + kpα)} with rational prime numbers p and v > 1/2, 0≤ k ≤ 1, 0 ≤ α < 1 is considered. The analicity of corresponding Euler product Z (s; v, k, α)= ∏p (1 — (v (p + kpα))-s)-1 in the domain {s : σ > α} \ (∪ρ∪n { s= (xβ+ iγ)/n : α < x ≤ 1} ∪ (α; 1]), where ρ = β + iγ are the zeros of Riemann zeta function, is proved
On the P-wave model of a single electrocardiogram lead
No full textWe describe a parametric model for the P-wave of a single electrocardiogram (ECG) lead trajectory. Though previously met in the bioengineering literature, the model was not treated in a complete parametric fashion. The paper fills the gap by making use of both frequentist and Bayesian approaches. Supporting real data example is provided. Further potential applications are also discussed
Leasing Agreement Regulation in Commercial Law
No full textBachelor’s paper deals with regulation of leasing agreement in Latvia’s Commercial law. Objective of study is to consider questions concerning basic principles of leasing in general and to raise understanding of current leasing regulation in Latvia. Paper also gives review of Worlds developed countries experience in leasing regulation and their legislation features in these aspects. It is important to pay attention to new concepts of legal leasing regulation, to understand the further evolution of leasing and to propose useful suggestions to improve current situation.
Summing up the studies verities and coming to conclusions it could be recognized that Latvia’s strategy in building legal framework for leasing is cautious without drastic changes and novelty based on sound practice. This will help us step by step introducing needed changes to get for the best practice in legal leasing regulation.
Author gives some proposals to law makers concerning Commercial law, to finalize obtained cognitions. Given proposals basically supplement already proposed draft law with additional party’s rights and duties and suggests expanding conditions for secondary leases
Apibendrintieji skaičiai ir modifikuotosios L-funkcijos
No full textThere is not abstract.Nagrinėjami įvairių apibendrintųjų skaičių sistemų pasiskirstymų aritmetinėse progresijose klausimai. Įrodomas modifikuotosios L-funkcijos, susijusios su apibendrintųjų pirminių skaičių seka {p + r}, analiziškumas pusplokštumėje σ > 0,9
Cross-idiotypic specificity of rat antibodies to Streptococcal A carbohydrate
No full textThe term “idiotypic specificity” was first proposed to designate a unique individual antigenic determinant of immunoglobulins which was not present on antibodies of the same specificity from other individuals, nor on antibodies with different specificity from the same individual. This original definition, however, provides no explanation for the increasing frequency of detectable cross idiotypic specificity of antibodies and must be altered in consideration of such cross specificity
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