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Sample records for vinnikov tnu lehtla

  1. Energeetikas ei juhtu imesid / Tõnu Lehtla

    Index Scriptorium Estoniae

    Lehtla, Tõnu, 1947-

    2010-01-01

    USA-s Silicon Valleys esitleti uut kütuseelemendi lahendust, mis selle leiutaja, firma Bloom Energy asutaja K. R. Sridhari kinnitusel on võimeline elektrienergiat tootma keskkonda saastamata. Energeetikaprobleemidest. Vastukaja artiklile: Aronovich, Mara Maret. Väike vägev liivatera. Õpetajate Leht (2010) 14. mai, lk. 20

  2. Eesti Keskkonnatervise Tegevuskava uuendamine 2002 / Reigo Lehtla

    Index Scriptorium Estoniae

    Lehtla, Reigo

    2003-01-01

    Eesti Keskkonnatervise Tegevuskava (NEHAP - National Environmental Health Action Plan) on Eestis esmakordne kõiki olulisemaid tervisele mõjuvaid keskkonnakomponente, nende tervisemõju ja sellest tulenevaid parandamisülesandeid kokkuvõttev ning Eesti tegelikust olukorrast lähtuv programm

  3. 40 aastaga 12 Cheopsi püramiidi / Martin Lehtla

    Index Scriptorium Estoniae

    Lehtla, Martin

    2005-01-01

    Ilmunud ka: Severnoje Poberezhje 13. jaan., lk. 4. Viru Kaevandus 40 tööaasta lühikokkuvõte. Lisad: Viru kaevandus; Viru kaevandusel on olnud seitse direktorit. Vt. samas Mati Jostov. Viru kaevanduse üle on põhjust uhkust tunda

  4. Eestlaste suur jalajälg / Tõnu Lehtla

    Index Scriptorium Estoniae

    Lehtla, Tõnu, 1947-

    2006-01-01

    Eestlaste "ökoloogiline jalajälg", mis mõõdab inimese tarbitud loodusvarade hulka nende taastumisega võrreldes, on üks Euroopa suuremaid. Paljuski tuleneb see meie energiakasutuse madalast efektiivsusest

  5. Eesti Energia korraldas OSELCA projekti raames Tallinnas rahvusvahelise seminari / Reigo Lehtla

    Index Scriptorium Estoniae

    Lehtla, Reigo

    2005-01-01

    Eesti Energia AS korraldas 12.-13. septembrini 2005. a. Tallinna Tehnikaülikooli energeetikahoones rahvusvahelise seminari olelusringi hindamise (Life Cycle Assessment) metoodika hetkeseisust Ida-Euroopa regioonis

  6. Ülemiste City kvartal Tallinnas / Mattias Agabus, Eero Endjärv, Illimar Truverk...[jt.] ; fotod: Kaido Haagen

    Index Scriptorium Estoniae

    2008-01-01

    asendiplaan, 3 korruste plaani, 3 värv. välisvaadet, restorani Mercado sisevaade; projekteerijad: M. Agabus, E. Endjärv, I.Truverk (Agabus, Endjärv & Truverk Arhitektid); hoonete arhitektuurne osa: E. Endjärv; sisearhitektid: K. Lents, H. Kääramees, T. Aunre (restoran Mercado); konstruktorid: Ü. Suvemaa, A. Lehtla, K. Adoberg; maastikuarhitektuur: Ü. Grišakov, M. Agabus, E. Endjärv

  7. Tähelepanu, lätlased tulevad...! / Peeter Järvelaid

    Index Scriptorium Estoniae

    Järvelaid, Peeter, 1957-

    1991-01-01

    Arvustus: Tartu Ülikooli õigusteaduskonna lõpetanute ja õigusteadust õpetanute nimekiri 1919-1989. Tartu, 1989 ; Latvijas Universitātes Tiesību Zinātnu Nodalas absolventu saraksts 1920-1940. Hamburg, 1990. - Sisaldab andmeid ka prof. Dietrich André Loeberi kohta

  8. Heavy-traffic analysis for the GI/G/1 queue with heavy-tailed distributions

    NARCIS (Netherlands)

    O.J. Boxma (Onno); J.W. Cohen

    1997-01-01

    textabstractWe consider a $GI/G/1$ queue in which the service time distribution and/or the interarrival time distribution has a heavy tail, i.e., a tail behaviour like $t^{-nu$ with $1

  9. Annual Knowledge-Based Software Assistant Conference (2nd) Held on 18-20 August 1987 in Utica, New York.

    Science.gov (United States)

    1988-01-01

    tnu:~tonbrowser sim~ilar in (lesigii to \\(o iwi i’l %%’!! 1- rinit i nivei, user of the B:ouhaws to Find :1 dfescri-JptioIll i c: t e in rl ’ eaIilv...kbsa PEI- FOOD : (6) 8 3i Wro((SATIC TYPE POSITIOn, STATIC TYPE REGION, 9 &0W tc-d&%*.qist 3kbs. PET- FOOD :)) eIUnda1 STOP-SP-STARTt Figure 1-1: Structure

  10. Catalytic transformation of methyl benzenes over zeolite catalysts

    KAUST Repository

    Al-Khattaf, S.

    2011-02-01

    Catalytic transformation of three methyl benzenes (toluene, m-xylene, and 1,2,4-trimethyl benzene) has been investigated over ZSM-5, TNU-9, mordenite and SSZ-33 catalysts in a novel riser simulator at different operating conditions. Catalytic experiments were carried out in the temperature range of 300-400 °C to understand the transformation of these alkyl benzenes over large pore (mordenite and SSZ-33) in contrast to medium-pore (ZSM-5 and TNU-9) zeolite-based catalysts. The effect of reaction conditions on the isomerization to disproportionation product ratio, distribution of trimethylbenzene (TMB) isomers, and p-xylene/o-xylene ratios are reported. The sequence of reactivity of the three alkyl benzenes depends upon the pore structure of zeolites. The zeolite structure controls primarily the diffusion of reactants and products while the acidity of these zeolites is of a secondary importance. In the case of medium pore zeolites, the order of conversion was m-xylene > 1,2,4-TMB > toluene. Over large pore zeolites the order of reactivity was 1,2,4-TMB > m-xylene > toluene for SSZ-33 catalyst, and m-xylene ∼ 1,2,4-TMB > toluene over mordenite. Significant effect of pore size between ZSM-5 and TNU-9 was observed; although TNU-9 is also 3D 10-ring channel system, its slightly larger pores compared with ZSM-5 provide sufficient reaction space to behave like large-pore zeolites in transformation of aromatic hydrocarbons. We have also carried out kinetic studies for these reactions and activation energies for all three reactants over all zeolite catalysts under study have been calculated. © 2011 Elsevier B.V.

  11. Electron density variability of nighttime D region ionosphere in Vietnamese and Japanese sectors

    Science.gov (United States)

    Tan, Le Minh; Shiokawa, Kazuo; Thu, Nguyen Ngoc; Ha, Tran Quoc

    2017-06-01

    Recording tweek atmospherics on geomagnetically quiet days in 2014 at Tay Nguyen University (TNU) (12.65°N, 108.02°E), Vietnam, and at Kagoshima (KAG) (31.48°N, 130.72°E), Japan, we investigated the nighttime electron density variability of the D region ionosphere between the equatorial-low-latitude Vietnamese and the low- to middle-latitude Japanese sectors. We estimated the reflection height and electron density of the D region ionosphere using the first-order mode cutoff frequency of tweek atmospherics. The results observed at both stations show that the mean electron density at the reflection height during winter season was higher than that during summer and equinox seasons. The electron density observed at TNU gradually decreased from 20:15 to 4:15 LT from winter to equinox and to summer. The electron density observed at KAG increased from 20:20 to 4:20 LT during summer and winter seasons. The mean electron density during 2014 observed at TNU (25.0 cm-3) was higher by 2.1 cm-3 than that observed at KAG (22.9 cm-3). During 2014, the nighttime electron density variations show a moderate positive correlation with the sunspot number but show weak to no correlation with the galactic cosmic rays. We suggest that the seasonal variations in the nighttime electron density could be significantly caused by the enhancement of geocoronal hydrogen Lyman α intensity and seasonal variation of nitric oxide density in the lower ionosphere.

  12. Comparative exploration of learning styles and teaching techniques between Thai and Vietnamese EFL students and instructors

    Directory of Open Access Journals (Sweden)

    Supalak Nakhornsri

    2016-09-01

    Full Text Available Learning styles have been a particular focus of a number of researchers over the past decades. Findings from various studies researching into how students learn highlight significant relationships between learners’ styles of learning and their language learning processes and achievement. This research focuses on a comparative analysis of the preferences of English learning styles and teaching techniques perceived by students from Thailand and Vietnam, and the teaching styles and techniques practiced by their instructors. The purposes were 1 to investigate the learning styles and teaching techniques students from both countries preferred, 2 to investigate the compatibility of the teaching styles and techniques practiced by instructors and those preferred by the students, 3 to specify the learning styles and teaching techniques students with high level of English proficiency preferred, and 4 to investigate the similarities of Thai and Vietnamese students’ preferences for learning styles and teaching techniques. The sample consisted of two main groups: 1 undergraduate students from King Mongkut’s University of Technology North Bangkok (KMUTNB, Thailand and Thai Nguyen University (TNU, Vietnam and 2 English instructors from both institutions. The instruments employed comprised the Students’ Preferred English Learning Style and Teaching Technique Questionnaire and the Teachers’ Practiced English Teaching Style and Technique Questionnaire. The collected data were analyzed using arithmetic means and standard deviation. The findings can contribute to the curriculum development and assist teachers to teach outside their comfort level to match the students’ preferred learning styles. In addition, the findings could better promote the courses provided for students. By understanding the learning style make-up of the students enrolled in the courses, faculty can adjust their modes of content delivery to match student preferences and maximize

  13. Reentrant metallic behavior in the Weyl semimetal NbP

    Energy Technology Data Exchange (ETDEWEB)

    Xu, J.; Bugaris, D. E.; Xiao, Z. L.; Wang, Y. L.; Chung, D. Y.; Kanatzidis, M. G.; Kwok, W. K.

    2017-09-01

    We report the occurrence of reentrantmetallic behavior in theWeyl semimetal NbP. When the appliedmagnetic field H is above a critical value H-c, a reentrance appears as a peak in the temperature-dependent resistivity rho(xx) (T) at T = T-p, similar to that observed in graphite where it was attributed to local superconductivity. The Tp(H) relationship follows a power-law dependence T-p similar to (H-H-c)(1/nu) where. can be derived from the temperature dependence of the zero-field resistivity rho(0)(T) similar to T-nu. From concurrent measurements of the transverse rho(xx) (T) and Hall rho(xy)(T) magnetoresistivities, we reveal a clear correlation between the rapidly increasing rho(xy) (T) and the occurrence of a peak in the rho(xx) (T) curve. Quantitative analysis indicates that the reentrantmetallic behavior arises from the competition of the magnetoconductivity sigma(xx) (T) with an additional component Delta sigma(xx) (T) = kappa(H)sigma(xx)(T) where kappa(H) = [rho(xy)(T)/rho(xx)(T)](2) is the Hall factor. We find that the Hall factor (kappa(H) approximate to 0.4) at peak temperature T-p is nearly field independent, leading to the observed T-p (H) relationship. Furthermore, the reentrant metallic behavior in rho(xx) (T) also is reflected in the behavior of rho(xx) (H) that ranges from nonsaturating at T > 70K to saturation at liquid-helium temperatures. The latter can be explained with the magnetic field dependence of the Hall factor kappa(H) (H). Our paper demonstrates that a semiclassical theory can account for the "anomalies" in the magnetotransport phenomena of NbP without invoking an exotic mechanism.

  14. Conjunto mínimo de parâmetros para avaliação da microbiota do solo e da fixação biológica do nitrogênio pela soja Minimal set of parameters for evaluation soil microbiota and biological nitrogen fixation in soybean

    Directory of Open Access Journals (Sweden)

    Rosinei Aparecida de Souza

    2008-01-01

    soil DNA by the denaturating gradient gel electrophoresis method (DGGE detected qualitative changes in soil microbes, related to the homogeneity of the area, as well as to differences among treatments, areas and harvests. Nodule dry weight (NDW was the most suitable parameter for the evaluation of nodulation. Significant correlations were obtained between the SDW and the total N accumulated in shoots (TNS. Similar results were obtained between SDW and total N-ureides (TNU. Monitoring of the symbiosis in soils traditionally cropped with soybean and poor on N may be achieved only by the determination of NDW and SDW.

  15. Motor abilities, movement skills and their relationship before and after eight weeks of martial arts training in people with intellectual disability [Motorické schopnosti, pohybové dovednosti a vztah mezi nimi u osob s mentálním postižením před osmitýdenním kurzem bojových umění a po jeho ukončení

    Directory of Open Access Journals (Sweden)

    Damir Karpljuk

    2012-06-01

    judokas had been noted. The effects of the training program should be verified in future studies. It is worth reiterating that by improving motor abilities and expanding the boundaries of skills, people with intellectual disability enhance their quality of life. Attention in the future and thus contributes to a higher quality of intellectually disabled people’s engagement in sport as well as in life.[VÝCHODISKA: Je známo, že část populace osob s mentálním postižením má sklon k obezitě a horšímu zdravotnímu stavu. Proto by v jejich životech měl hrát významnou roli sport. Navrhnout vědecky a profesionálně účinné tréninkové programy pro sportovní vyžití osob s mentálním postižením, sestávající z nezbytné metodiky a didaktických pokynů, je sice těžký úkol, ale stává se nezbytností pro blízkou budoucnost. CÍLE: Cílem studie je stanovit vzájemný vztah mezi vy branými motorickými schopnostmi a pohybovými dovednostmi v rámci bojových umění, jakož i to, jak a do jaké míry osoby s mentálním postižením (MP, které pravidelně trénují judo, mohou po osmitýdenním tréninkovém kurzu ve svých dovednostech v oblasti bojových umění (judo, karate, box a šerm dosáhnout zlepšení. Zajímalo nás také, zda došlo k jakýmkoli změnám ve vybraných motorických dovednostech. METODIKA: Měření motorických schopností a dovedností v oblasti vybraných bojových umění bylo provedeno dvakrát – v březnu 2008, týden před začátkem kurzu, a v květnu 2008, týden po jeho ukončení. Tréninkový kurz trval dva měsíce v rozsahu dvou lekcí týdně. Zkoumaný vzorek sestával z 5 žen a 18 mužů ve věku mezi 16 a 36 lety s mírným až středně těžkým mentálním postižením. Studie byla provedena pomocí 8 testů pro hodnocení motorických schopností a 9 testů pro hodnocení dovedností v oblasti bojových umění. VÝSLEDKY: Výsledky t-testu pro závislé vzorky prokázaly statisticky v