WorldWideScience

Sample records for lammas kirjus seltskonnas

  1. Engaging students and teachers in meteorology and atmospheric sciences: the LaMMA activities

    Science.gov (United States)

    Grasso, Valentina; Bartolini, Giorgio; Benedetti, Riccardo; Betti, Giulio; Capecchi, Valerio; Gozzini, Bernardo; Magno, Ramona; Orlandi, Andrea; Rovai, Luca; Tei, Claudio; Torrigiani, Tommaso; Zabini, Federica

    2017-05-01

    Scientific institutes contribute to increase scientific awareness in local communities. They also provide students and teachers with learning opportunities outside the classroom. This is especially true when science centers create opportunities to visit laboratories or design activities based on learning by doing. LaMMA, a public consortium set up by Italian National Research Council and Tuscany Region (Italy), is the official weather service for Tuscany. In recent years LaMMA developed several educational modules on meteorology for different school grades. Activities are performed during a two-hour visit at the LaMMA laboratory. Since 2011 every year more than 1200 students come to visit LaMMA to follow one of the proposed modules on meteorology. Students are engaged in different activities and have the opportunity to visit the LaMMA weather operations room and meet the forecasters. In the last two years, an educational module on climate change based on a participatory approach was proposed to teachers of all school levels. More than 500 teachers and environmental educators from all over Tuscany participated and many of them developed a follow up project in the classroom.

  2. Toruni "Kontakt 2008". Me olime kolmandad, kuid missuguses seltskonnas! / Boriss Tuch ; tõlk. Madis Kolk

    Index Scriptorium Estoniae

    Tuch, Boris, 1946-

    2008-01-01

    Toruni rahvusvahelisest teatrifestivalist "Kontakt 2008", kus Teater NO99 mängis Tiit Ojasoo lavastust "GEP" ja sai kolmanda autasu ning eriauhinna parima visuaalse lahenduse eest. Festivali Grand prix võitis Alvis Hermanis ja Riia Uus Teater lavastusega "Zvuki tishinõ" ("Vaikuse hääl). Ka teistest festivali etendustest: "Kummitused", "Ivanov", "Toibele ja tema deemon", "Äike", "Laulatus"

  3. DJ loodud "must lammas" Hvana flirdib kashmiiri ja teksaga / Mariann Joonas

    Index Scriptorium Estoniae

    Joonas, Mariann

    2008-01-01

    Muusik Howie B ehk Howard Bernstein (sünd. 1963 Glasgow's juudi perekonnas) tutvustab ennast disainerina. Koostöös Itaalia moemajaga Fornari sündinud kaubamärgist Hvana, mille tunneb ära "musta lamba" järgi

  4. DJ loodud "must lammas" Hvana flirdib kashmiiri ja teksaga / Mariann Joonas

    Index Scriptorium Estoniae

    Joonas, Mariann

    2008-01-01

    Muusik Howie B ehk Howard Bernstein (sünd. 1963 Glasgow's juudi perekonnas) tutvustab ennast disainerina. Koostöös Itaalia moemajaga Fornari sündinud kaubamärgist Hvana, mille tunneb ära "musta lamba" järgi

  5. [Spatial representativeness of monitoring stations for air quality in Florence (Tuscany Region, Central Italy) according to ARPAT e LaMMA. Critical observations].

    Science.gov (United States)

    Grechi, Daniele

    2016-01-01

    On March 2015, the Environmental Protection Agency of Tuscany Region (Central Italy) and the Laboratory of monitoring and environmental modelling published a Report on spatial representativeness of monitoring stations for Tuscan air quality, where they supported the decommissioning of modelling stations located in the Florentine Plain. The stations of Signa, Scandicci, and Firenze-Bassi, located in a further South area, were considered representative Believing that air quality of the Plain could be evaluated by these stations is a stretch. In this text the author show the inconsistency of the conclusion of the Report through correlation graphs comparing daily means of PM10 detected in the disposed stations and in the active ones, showing relevant differences between the reported values and the days when the limits are exceeded. The discrepancy is due to the fact that uncertainty of theoretical estimates is greater than the differences recorded by the stations considered as a reference and the areas they may represent. The area of the Plain has a population of 150,000 individuals and it is subject to a heavy environmental pression, which will change for the urban works planned for the coming years. The population's legitimate request for the analytical monitoring of air pollution could be met through the organization of participated monitoring based on the use of low-cost innovative tools.

  6. Geoportale del Consorzio LaMMA Disseminazione di dati meteo in near real-time tramite standard OGC e software Open Source

    Directory of Open Access Journals (Sweden)

    Simone Giannechini

    2014-02-01

    Full Text Available This paper describes the spatial data infrastructure (SDI used by the LaMMA Consortium - Environmental Mod elling and Monitoring Laboratory for Sustainable Developm ent of Tuscany Region for sharing, viewing and cataloguing (metadata and related information all geospatial data that are daily proc essed and used op erationally in many meteorological and environmental app lications.The SDI was develop ed using Open Source technologies, mo reover the geospatial data has been imp lemented through protoco ls based on ogc (Open Geospatial Consortium standards such as WMS, WFS and CSW. Geoserver was used for disseminating geospatial data and maps through OGC WMS and WFS protoco ls while GeoNetwork was used as the cataloguing and search po rtal through also the CSW protocol; eventually MapStore was used to implement the mash-up front-end.The innovative aspect of this po rtal is the fact that it currently is ingesting, fusing and disseminating geospatial data related to the MetOcfield from various sources in near real-time in a comp rehensive manner that allows users to create add ed value visualizations for the support of operational use cases as well as to access and download underlying data (where app licable.

  7. Trio Fragile / Olga Kaljundi

    Index Scriptorium Estoniae

    Kaljundi, Olga, 1941-2001

    1998-01-01

    Tallinna Vene Draamateatri galeriis esinenud trupi "Trio Fragile" vernissaazhist. Trio loomingust ja osalejatest : kahe muusiku seltskonnas esineb ka 1984.a. Kunstiülikooli lõpetanud kunstnik Tõnu Talve.

  8. Moskva ja Lääs enne Peterburi G-8 tippkohtumist / Urmas Kiil

    Index Scriptorium Estoniae

    Kiil, Urmas

    2006-01-01

    Hiljuti avalikustatud ettekannet Engaging with Russia - the Next Phase (Koostöö Venemaaga - järgmine etapp) võib pidada Venemaa ja lääneriikide suhete külmenemise mastaapseks kroonikaks ja see teeb problemaatiliseks Venemaa edaspidise osalemise G-8 seltskonnas

  9. Püha õhtu seltskonnalaud / Kaire Nurk

    Index Scriptorium Estoniae

    Nurk, Kaire, 1960-

    2005-01-01

    Püha õhtusöömaaja teemast kunstis. Saksa kunstiajaloolase Horst Schwebeli poolt Leonardo da Vinci "Püha õhtusöömaaja" XX sajandi "töötlustes" välja toodud poliitilise agitatsiooni ja ühisest probleemist haaratud seltskonna kujutiste suunast. Laua kujutisest kunstis

  10. Püha õhtu seltskonnalaud / Kaire Nurk

    Index Scriptorium Estoniae

    Nurk, Kaire, 1960-

    2005-01-01

    Püha õhtusöömaaja teemast kunstis. Saksa kunstiajaloolase Horst Schwebeli poolt Leonardo da Vinci "Püha õhtusöömaaja" XX sajandi "töötlustes" välja toodud poliitilise agitatsiooni ja ühisest probleemist haaratud seltskonna kujutiste suunast. Laua kujutisest kunstis

  11. Monica ja Marcel Vichmanni abielus kriis? / Jaanus Hämarsoo

    Index Scriptorium Estoniae

    Hämarsoo, Jaanus

    2006-01-01

    Kuigi tippärimeeste seltskonnas räägitakse AS-i Go Group suuromaniku Marcel Vichmanni ja teleproduktsioonifirma Ruut ühe omaniku Monica Vichmanni abielu kriisist, kinnitab Monica Vichmann, et kuulujuttudel ei ole alust ning lahutuse teemal ei ole nad abikaasaga rääkinud

  12. 阿伦德陨石白色包体中铅同位素组成的激光探针质谱分析

    Institute of Scientific and Technical Information of China (English)

    柴之芳

    1984-01-01

    The attempt of this work is to use LAMMA, a newly developed modern micro-beam analytical technique, to determin the lead isotopic composition of some grains picked out from the white aggregates in the Allende (C3V) carbonaceous chondrite. Experimental results show that the Pb/Pb model age of the Allende calculated on the basis of the 206Pb/207Pb ratio is (4.56±0.008) AE, in good agreement with the value reported in literature.LAMMA provides a new and powerful tool in the analytical arsenal of trace elements and isotopic composition, due to its high sensitivity, rapid analysis and good space resolution.

  13. Vrutshenõ prizõ 25-go festivalja fantastiki

    Index Scriptorium Estoniae

    2007-01-01

    Brrüsseli ulmefilmide rahvusvahelise festivali peapreemia - Kuldse Ronga (Golden Raven) võitis korealase Joon-ho Bongi film "The Host", Hõbedase Ronga said korealase Dong-ho Cho "Rahutu" ("The Restless") ja uus-meremaalase Jonathan Kingi "Must lammas" ("Black Sheep")

  14. Vrutshenõ prizõ 25-go festivalja fantastiki

    Index Scriptorium Estoniae

    2007-01-01

    Brrüsseli ulmefilmide rahvusvahelise festivali peapreemia - Kuldse Ronga (Golden Raven) võitis korealase Joon-ho Bongi film "The Host", Hõbedase Ronga said korealase Dong-ho Cho "Rahutu" ("The Restless") ja uus-meremaalase Jonathan Kingi "Must lammas" ("Black Sheep")

  15. Fingerprint spectra in Laser Microprobe Mass Analysis of titanium oxides of different stoichiometry

    Science.gov (United States)

    Michiels, Eric; Gijbels, Renaat

    Micrometric particles of powdered titanium oxides of different stoichiometry (TiO 2, Ti 2O 3 and TiO) are examined by Laser Microprobe Mass Analysis (LAMMA). The stoichiometry of the compound can be correlated with the relative intensity distributions of the (positive or negative) cluster and atomic ions. Application of the "valence model" yields similar conclusions. Variations in laser energy density and in ion lens potential also effect the ion intensity distributions.

  16. A COMPARISON OF EASTERN AND WESTERN HONG KONG PHYTOPLANKTON FROM WEEKLY SAMPLES (1997-1999)

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    Weekly phytoplankton samples were taken from western Hong Kong (Lamma) from Jan. 1997 to Dec. 1999 and from Port Shelter in Eastern Hong Kong from January 1998 to December 1999. During that time diatom blooms occurred repeatedly at both sites but never in synchrony. One species would bloom at one site and then weeks later it or another species would bloom at the other site; while the 1998 red tide of the mucus producing dinoflagellate Gymnodinium mikimotoi occurred at both sites. It first occurred at the Port Shelter site in March and did not appear at the Lamma site until April. With the single exception of this species, no other dinoflagellate reached bloom concentrations at the Lamma site. In addition, dinoflagellate abundance at the Lamma site was significantly lower (P <0.05) than that at the Port Shelter site. This was correlated with a significantly higher turbidity (i.e. low Secchi transparency) and higher turbulence (stronger currents) at the Lamma site.Annual variation in surface temperature correlated with total surface phytoplankton abundance at both our sample sites. Phytoplankton abundance increased in spring as water temperatures warmed. In fall, as surface water temperatures began to decline and the monsoon rains became less frequent there was a reduction in phytoplankton abundance associated with the reduction in temperature and light. Because so many variables co-occur with temperature (e.g. the amount of rainfall, light intensity and light duration etc.) it is not possible to cite temperature as the causal factor associated weth controlling phytoplankton abundance at our two sample sites.Our data support the rather controversial notion that percentage-wise, there are relatively more harmful bloom forming species in nutrient-rich coastal waters than there are in the world's oceans. 16% of the dinoflagellate species and 10.3% of the diatom species observed at our two sample sites were classed as harmful. These percentages were higher than those

  17. Comparative study of hydrographic conditions for algal bloom formation in the coastal waters of east and west of Hong Kong during 1998

    Institute of Scientific and Technical Information of China (English)

    FANG Hongda; TANG Senming

    2009-01-01

    Phytoplankton abundance was found to be positively correlated with seasonal changes of seawater temperature in Port Shelter and Lamma Channel, Hong Kong in 1998. Rising water temperature from around 20°C to 25°C coincided with an increase in phytoplankton abundance at both locations. Heavy rains from June to September reduced salinity from 30 to 20, but the decrease in salinity was not correlated with a decline in phytoplankton abundance. In spring 1998, over 0.6×106 cells dm-3 and 0.1×106 cells dm-3 of the dinoflagellate, Gymnodinium mikimotoi Miyake et Kominami ex Oda occurred in the coastal waters of Port Shelter and Lamma Channel, respectively. High abundance of the dinoflagellate Ceratium furca (Ehr.) Claparede et Lachmann (>1×106 cells dm-3) produced long-lasting blooms in the waters of Port Shelter from September to October in 1998. The abundances of both diatoms and dinoflagellates were significantly lower in the waters of Lamma Channel than those in Port Shelter due to the less frequent blooms in 1998. Hydrographic conditions such as stable water masses and water column stratification were the main reasons for the differences in the algal abundance and bloom frequency found between the two locations since neither of the two areas appeared to be nutrient-limited. This type water condition for the formation of algal bloom in Port Shelter has not been reported previously and it is not a general case for many bays along China's coast where algal bloom occurs as well.

  18. Rohutirts ja sipelgas : [valmid] / Jean de La Fontaine

    Index Scriptorium Estoniae

    La Fontaine, Jean de

    2006-01-01

    Sisu: Rohutirts ja sipelgas ; Konn, kes tahab saada suureks kui sõnn ; Ronk ja rebane ; Mullikas, kits ja lammas ühes kambas lõviga ; Linnarott ja maarott ; Hunt ja koer ; Hunt ja lambatall ; Rebane ja toonekurg ; Rottide nõupidamine ; Noolest haavatud lind ; Hunt ja kurg ; Kukk ja pärl ; Hagijas ja tema sõbratar ; Lõvi ja hiir ; Rebane ja viinamarjad ; Hundid ja lambad ; Põllumees ja tema lapsed ; Sünnitusvaludes mägi ; Kana, kes munes kuldmune ; Katkutõbised loomad ; Lõvi õukond ; Tõld ja kärbes ; Piimanaine ja piimapütt ; Kingsepp ja pankur ; Naised ja saladus ; Lõvi, hunt ja rebane

  19. Short outlines of books by Estonian authors / Janika Kronberg, Rutt Hinrikus

    Index Scriptorium Estoniae

    Kronberg, Janika, 1963-

    2006-01-01

    Arvustus: Krull, Hasso. Loomise mõnu ja kiri. Tallinn : Kultuurileht, 2006 ; Aleksejev, Tiit. Valge kuningriik. Tallinn : Varrak, 2006 ; Baturin, Nikolai. Sõnajalg kivis. Tallinn : Eesti Raamat, 2006 ; Nõu, Helga. Ood lastud rebasele. Tallinn : Eesti Keele Sihtasutus, 2006 ; Kaus, Jan. Tema. Tallinn : Tuum, 2006 ; Krull, Hasso. Talv. Tallinn : Tuum, 2006 ; Soomets, Triin. Väljas. Tallinn : Tuum, 2006 ; Kareva, Doris. Aja kuju. Tallinn : Verb, 2006 ; Vint, Toomas. Topeltvalguses. Tallinn : Eesti Keele Sihtasutus, 2005 ; Bristol, Piret. Sõud. Tallinn : Eesti Keele Sihtasutus, 2005 ; Valton, Arvo. Taltsutatud lammas : jutud. Tallinn : Kirjastuskeskus, 2005 ; Kivastik, Mart. Külmetava kunstniku portreed. Viinistu triloogia. Tartu : Väike Öömuusika, 2006

  20. Short outlines of books by Estonian authors / Janika Kronberg, Rutt Hinrikus

    Index Scriptorium Estoniae

    Kronberg, Janika, 1963-

    2006-01-01

    Arvustus: Krull, Hasso. Loomise mõnu ja kiri. Tallinn : Kultuurileht, 2006 ; Aleksejev, Tiit. Valge kuningriik. Tallinn : Varrak, 2006 ; Baturin, Nikolai. Sõnajalg kivis. Tallinn : Eesti Raamat, 2006 ; Nõu, Helga. Ood lastud rebasele. Tallinn : Eesti Keele Sihtasutus, 2006 ; Kaus, Jan. Tema. Tallinn : Tuum, 2006 ; Krull, Hasso. Talv. Tallinn : Tuum, 2006 ; Soomets, Triin. Väljas. Tallinn : Tuum, 2006 ; Kareva, Doris. Aja kuju. Tallinn : Verb, 2006 ; Vint, Toomas. Topeltvalguses. Tallinn : Eesti Keele Sihtasutus, 2005 ; Bristol, Piret. Sõud. Tallinn : Eesti Keele Sihtasutus, 2005 ; Valton, Arvo. Taltsutatud lammas : jutud. Tallinn : Kirjastuskeskus, 2005 ; Kivastik, Mart. Külmetava kunstniku portreed. Viinistu triloogia. Tartu : Väike Öömuusika, 2006

  1. In vivo metal-ion release from porous titanium-fiber material

    Energy Technology Data Exchange (ETDEWEB)

    Ducheyne, P.; Willems, G.; Martens, M.; Helsen, J.

    1984-03-01

    Dense and porous Ti, Ti-alloy, and stainless steel specimens were implanted in canine trabecular bone. After 6 and 12 months the specimens were retrieved together with bone tissue immediately adjacent. The trace metal content in the tissue samples was determined using neutron activation analysis, differential pulse polarography, graphite furnace atomic-absorption spectrophotometry, electron microprobe analysis, and laser microprobe analysis. The results are discussed in view of (i) the release of Ti ions, which is larger for porous than for bulk specimens, (ii) the various artifacts arising in electron microprobe (EMP) and laser microprobe mass analysis (LAMMA) determination of compositional gradients of trace metal-ion content in bone tissue, (iii) the absence of measurable quantities of V in bone tissue, and (iv) the difference in local tissue accumulation between Ti, released from Ti specimens, and Ni, released from stainless steel specimens.

  2. Reactor Period Algorithm and Parameter Set-point Optimization Study%反应堆周期算法及定值优化研究

    Institute of Scientific and Technical Information of China (English)

    付学峰

    2013-01-01

    A point reactor model with 6 groups delayed neutrons was adopted to simulate the typical 20 pcm and 60 pcm prompt reactivity insertion during the period of initial criticality and zero power physics test .Both Kalman filter and dynamic filter algorithms were studied .The results show that the Kalman filter approach can attenuate the impact of neutron prompt jump and gives features of self-adaptation .However ,it reaches less accuracy at the earlier transient period and the protection response time is long w hen large reactivity is inserted . T he dynamic filter approach gives high accuracy and response quickly through the optimization of the relative power change LAMMA and gain coefficient λ. However , frequent adjustment of λtakes time and increases the probability of operation mistakes .Static filter ,with optimized constant gain coefficient , is accurate ,timesaving and safe .%采用6组缓发中子点堆模型,模拟堆芯在初始达临界和零功率物理试验时,引入20 pcm和60 pcm典型阶跃反应性,研究卡尔曼滤波算法和动态滤波算法。结果表明:卡尔曼滤波算法能减弱中子瞬跳的影响,具有较好的自适应性,但在瞬态初期测量误差偏大,在大反应性引入时启动保护的响应时间较长;动态滤波算法通过优化功率相对变化量定值LAMMA ,并定期调整增益相关参数λ,具有测量准确、大反应性下保护响应快的优点,但频繁定值调整耗时较多,并增加了误操作的风险;静态滤波的增益为优化的常数,具有测量准确、节省时间和安全的优点。

  3. Performance of an agricultural tractor in no tillage as a function of displacement speed and the seeders' tire inflation pressure

    Energy Technology Data Exchange (ETDEWEB)

    Furlani, Carlos Eduardo Angeli; Cortez, Jorge Wilson; Silva, Rouverson Pereira da; Grotta, Danilo Cesar Checchio; Toledo, Anderson de [Universidade Estadual Paulista (UNESP), Jaboticabal, SP (Brazil)], E-mail: furlani@fcav.unesp.br

    2008-07-01

    The performance of an agricultural tractor under field conditions results from the tire wheel interaction together with its displacement speed. This work was developed to assess the performance of an agricultural tractor under the (75, 70, and 60 psi) tire inflation pressure conditions of a seeder and in two different gears providing speeds of 3.0 and 6.0 km h{sup -1}. The experiment took place at Sao Paulo State University (UNESP), at the Jaboticabal Campus, and was conducted by Laboratory of Machines and Agricultural Mechanization (LAMMA) at the Department of Rural Engineering. The delineation used was entirely randomized in a 2-factor factorial scheme (3 x 2) with 4 repetitions. We also observed that fuel consumption was influenced only by the tractor gear. Energy consumption was greater as speed increased, caused by gear shifting. The displacement speed was greater for the 75-psi pressure due to a lesser slippage in the seeder when under this pressure. Tractor slippage and initial stand did not change with the tested factors. (author)

  4. CLINICAL AND EXPERIMENTAL STUDIES OF LARGE AMPLITUDE ACTION POTENTIAL OF THE SUFFERED FACIAL MUSCLES IN INTRATEMPORAL FACIAL NERVE PARALYSIS

    Institute of Scientific and Technical Information of China (English)

    任重; 惠莲

    1999-01-01

    Objctive. To testify the phenomenon that large amplitude action potential appears at the early stage oil facial paralysis, and to search for the mechanism through clinical and experimental studies. Patients(aninmls) and methods. The action potentials of the orbicular ocular and oral museles were recorded in 34 normal persons by electromyogram instrtiments. The normal range of amplitude percentage was found out according to the normal distribution, One hundred patients with facial paralysis were also studied. The action potentials of facial muscles were recorded ia 17 guinea pigs before and after the facial nerve was comp~ and the facial nerve was examined under electromicroscope before and after the compression.Results. The amplitude percentage of the suffered side to the healthy side was more than 153 percent in 6 of the 100 patients. Large amplitude action potential occured in 35 per cent guinea pigs which were performed the experiment of facial nerve compression. Electromicroscopic examination revealed separation of the lammae of the facial nerve's myelin sheath in the guinea pigs which exhibited large amplitude action potential Conclusion. The facial nerve exhibited a temporary over-excitability at the early stage of facial nerve injury in scane patients and guinea pigs. If the injury was limited in the myelin sheath, the prognods was relatively good.

  5. CLINICAL AND EXPERIMENTAL STUDIES OF LARGE AMPLITUDE ACTION POTENTIAL OF THE SUFFERED FACIAL MUSCLES IN INTRATEMPORAL FACIAL NERVE PARALYSIS

    Institute of Scientific and Technical Information of China (English)

    1999-01-01

    Ojective. To testify the phenomenon that large amplitude action potential appears at the early stage of facial paralysis, and to search for the mechanism through clinical and experimental studies. Patients(animals) and methods. The action potentials of the orbicular ocular and oral muscles were recorded in 34 normal persons by electromyogram instruments. The normal range of amplitude percentage was found out according to he normal distribution. One hundred patients with facial paralysis were also studied. The action potentials of facial muscles were recorded in 17 guinea pigs before and after the facial nerve was compressed and the facial nerve was examined under electromicroscope before and after the compression.Results. The amplitude percentage of the suffered ide to the healthy side was more than 153 percent in 6 of the 100 patients. Lare amplitude action potential ocured in 35 per cent guinea pigs which were performed the experiment of facial nrve compression. Electromicroscopic examination revealed separation of the lammae of the facial nerve's myelin sheath in the guinea pigs which exhibited large amplitude action potential.Conclusion. The facial nerve exhibited a temporary over-exciability at the early stage of facial nerve injury in some patients and guinea pigs. If the injury waslimited in the myelin sheath, te prognosis was relatively good.

  6. Decomposição de culturas de cobertura no sistema plantio direto, manejadas mecânica e quimicamente Acting of covering cultures in no tillage system, handling mechanics and chemistry

    Directory of Open Access Journals (Sweden)

    Gustavo N. dos Reis

    2007-04-01

    Full Text Available O sistema plantio direto preconiza o uso de culturas de cobertura para produção de massa seca sobre o solo. O presente trabalho teve por objetivo estudar a produção e a taxa de decomposição de duas coberturas vegetais - crotalária juncea (Crotalária juncea L. e mucuna-cinza (Stilozobium niveum L - em três sistemas de manejo (rolo-faca, triturador de palhas e herbicida, e a capacidade de campo efetiva dos manejos. O experimento foi realizado na área do Laboratório de Máquinas e Mecanização Agrícola (LAMMA, do Departamento de Engenharia Rural, UNESP, Jaboticabal - SP, com delineamento em blocos ao acaso, em esquema fatorial 3x2, originando seis tratamentos, com quatro repetições. Foram analisadas as produções de massa seca das culturas de cobertura antes e após o manejo, a velocidade de deslocamento e a capacidade de campo efetiva para cada conjunto (trator-equipamento. As análises dos valores obtidos permitiram verificar que o fator manejo não interfere na decomposição da massa seca das coberturas vegetais e que as duas culturas de cobertura apresentaram massas semelhantes aos 30; 70 e 125 dias após a semeadura, diferindo aos 97 dias, época na qual a crotalária apresentou maior quantidade de massa seca. Aos 30; 51 e 71 dias após o manejo, as massas secas das culturas foram semelhantes. O manejo com herbicida apresentou maior capacidade de campo efetiva.The no tillage using covering cultures about the production dry mass surface in the soil. The present work had for objective to study the production and acting of two vegetable coverings crotalária juncea (Crotalaria juncea L. and mucuna-cinza (Stilozobium niveum, in three systems of handlings (roll-knife, crusher of straws and herbicide, and and the effective field capacity. The experiment was accomplished in area of Laboratório de Máquinas e Mecanização Agrícola (LAMMA, of the Departamento de Engenharia Rural, UNESP; Jaboticabal - SP, with experimental design

  7. Efeitos da roda compactadora de semeadoras sob cargas verticais na deformação do solo com dois teores de água Effect of seeders press wheel action under loads in the soil deformation in two moisture contents

    Directory of Open Access Journals (Sweden)

    Rouverson P. da Silva

    2006-08-01

    Full Text Available O presente trabalho foi conduzido na Pista de Ensaios de Semeadura do Laboratório de Máquinas e Mecanização Agrícola (LAMMA da UNESP/Jaboticabal - SP, para o estudo da ação da roda compactadora de semeadoras sob cargas verticais, na deformação do solo, com dois teores de água. Os tratamentos consistiram da combinação de dois teores de água e seis cargas verticais, totalizando 12 tratamentos, com três repetições, em dois ensaios, analisando-se a resistência mecânica do solo à penetração e a deformação do solo provocada pela roda compactadora. A roda compactadora utilizada era de alumínio, com massa de 6,4 kg, 40 cm de diâmetro e 10 cm de largura, sob a ação de cargas verticais de 63; 161; 259; 357; 455 e 553 N, obtidas acoplando-se lastros de chumbo sobre a roda compactadora, sendo os teores de água do solo de 15,4 e 9,2%. Os resultados permitem concluir que o teor de água do solo tem grande influência na deformação e compactação do solo, que aumentam proporcionalmente com as cargas verticais sobre a roda compactadora, e que, quanto maior o teor de água do solo, mais suscetível o mesmo fica à compactação e deformação.The present work was leading in the sowing assays track at the Laboratório de Máquinas e Mecanização Agrícola (LAMMA, UNESP/Jaboticabal-SP, Brazil, where it was studied the press wheel action under loads in soil deformation with two moisture contents. The treatments consisted in the combination of two moisture contents, and six loads, totalizing twelve treatments with three repetitions. The following parameters were analyzed: soil mechanical resistance to penetration and the analysis of the soil deformation caused by the press wheel in static and dynamic testing. The press wheel used was of aluminum, with 6.4 kg mass, 40 cm diameter and 10 cm width. The load used was of 63; 161; 259; 357; 455 e 553 N, gotten by the connection of ballasts on the press wheel. The tested soil moisture was 15

  8. Vares ja kana : [valmid] / Ivan Krõlov ; tlk. Eduard Kansa, Mart Raud, Timotheos Kuusik, Johannes Semper, G. Õis, Arnold Tulik, Oskar Urgart, Jaan Kärner, Jakob Tamm, Erni Hiir

    Index Scriptorium Estoniae

    Krõlov, Ivan, 1768(1769)-1844

    2006-01-01

    Sisu: Vares ja Kana ; Moosekandid ; Vares ja Rebane ; Konn ja Härg ; Pirtsakas Näitsik ; Oraakel ; Rukkilill ; Tuli ja Metsatukk ; Hunt ja Talleke ; Pärdik ja Prillid ; Ahvid ; Tihane ; Eesel ; Kotkas ja Kanad ; Võimumees ja Mõttetark ; Koerte sõprus ; Kasujaotus ; Vaat ; Kvartett ; Teekäijad ja Koerad ; Hunt penilas ; Oja ; Rebane ja Mäger ; Rohutirts ja Sipelgas ; Luiskaja ; Kukk ja Pärlitera ; Jänes jahil ; Hunt ja Kägu ; Haug ja Kass ; Peremees ja Sulane ; Voor ; Elevant maavalitsejaks ; Eesel ja Ööbik ; Külamehe kimbatus ; Elevant ja Mops ; Hunt ja tema Kutsikas ; Kass ja Kokk ; Lõvi ja Sääsk ; Aednik ja Filosoof ; Haned ; Siga ; Vanamees ja kolm noorukit ; Kotkas ja Ämblik ; Lehed ja Juured ; Hunt ja Rebane ; Lohe ; Rästas ; Mehhaanik ; Trishka satter ; Tiik ja Jõgi ; Luik, Haug ja Vähk ; Erak ja Karu ; Mesilane ja Kärbsed ; Lõvi jahisaak ; Talupojad ja Jõgi ; Lilled ; Uudishimulik ; Kaastundlik Rebane ; Kogukonna koosolek ; Demjani kalasupp ; Tihane ja Tuvi ; Hiir ja Rott ; Peegel ja Ahv ; Sääsk ja Karjane ; Talupoeg ja Surm ; Hunt ja Karjased ; Lõvi ja Rebane ; Kamm ; Hunt ja Kurg ; Pilv ; Poiss ja Siug ; Maamees ja Siug ; Kägu ja Tuvike ; Kaks Vaati ; Töökas Karu ; Rebane ja Viinamarjad ; Karu võrgus ; Kirjamees ja Röövel ; Mölder ; Siga Tamme all ; Kärbes ja Mesilane ; Ämblik ja Mesilane ; Rebane ja Eesel ; Siug ja Talleke ; Ööbikud ; Peremes ja Lammas ; Kaks Külameest ; Kaks Koera ; Kass ja Ööbik ; Kalade tants ; Haug ; Habemenoad ; Hiired ; Hunt ja Kass ; Karjane ; Orav ; Damaskuse mõõk ; Koer ja Hobune ; Rebane ; Hundid ja Lambad ; Kägu ja Kukk

  9. Vares ja kana : [valmid] / Ivan Krõlov ; tlk. Eduard Kansa, Mart Raud, Timotheos Kuusik, Johannes Semper, G. Õis, Arnold Tulik, Oskar Urgart, Jaan Kärner, Jakob Tamm, Erni Hiir

    Index Scriptorium Estoniae

    Krõlov, Ivan, 1768(1769)-1844

    2006-01-01

    Sisu: Vares ja Kana ; Moosekandid ; Vares ja Rebane ; Konn ja Härg ; Pirtsakas Näitsik ; Oraakel ; Rukkilill ; Tuli ja Metsatukk ; Hunt ja Talleke ; Pärdik ja Prillid ; Ahvid ; Tihane ; Eesel ; Kotkas ja Kanad ; Võimumees ja Mõttetark ; Koerte sõprus ; Kasujaotus ; Vaat ; Kvartett ; Teekäijad ja Koerad ; Hunt penilas ; Oja ; Rebane ja Mäger ; Rohutirts ja Sipelgas ; Luiskaja ; Kukk ja Pärlitera ; Jänes jahil ; Hunt ja Kägu ; Haug ja Kass ; Peremees ja Sulane ; Voor ; Elevant maavalitsejaks ; Eesel ja Ööbik ; Külamehe kimbatus ; Elevant ja Mops ; Hunt ja tema Kutsikas ; Kass ja Kokk ; Lõvi ja Sääsk ; Aednik ja Filosoof ; Haned ; Siga ; Vanamees ja kolm noorukit ; Kotkas ja Ämblik ; Lehed ja Juured ; Hunt ja Rebane ; Lohe ; Rästas ; Mehhaanik ; Trishka satter ; Tiik ja Jõgi ; Luik, Haug ja Vähk ; Erak ja Karu ; Mesilane ja Kärbsed ; Lõvi jahisaak ; Talupojad ja Jõgi ; Lilled ; Uudishimulik ; Kaastundlik Rebane ; Kogukonna koosolek ; Demjani kalasupp ; Tihane ja Tuvi ; Hiir ja Rott ; Peegel ja Ahv ; Sääsk ja Karjane ; Talupoeg ja Surm ; Hunt ja Karjased ; Lõvi ja Rebane ; Kamm ; Hunt ja Kurg ; Pilv ; Poiss ja Siug ; Maamees ja Siug ; Kägu ja Tuvike ; Kaks Vaati ; Töökas Karu ; Rebane ja Viinamarjad ; Karu võrgus ; Kirjamees ja Röövel ; Mölder ; Siga Tamme all ; Kärbes ja Mesilane ; Ämblik ja Mesilane ; Rebane ja Eesel ; Siug ja Talleke ; Ööbikud ; Peremes ja Lammas ; Kaks Külameest ; Kaks Koera ; Kass ja Ööbik ; Kalade tants ; Haug ; Habemenoad ; Hiired ; Hunt ja Kass ; Karjane ; Orav ; Damaskuse mõõk ; Koer ja Hobune ; Rebane ; Hundid ja Lambad ; Kägu ja Kukk

  10. Physical Hydrography and Algal Bloom Transport in Hong Kong Waters

    Institute of Scientific and Technical Information of China (English)

    KUANG Cui-ping; LEE Joseph H.W.

    2005-01-01

    In sub-tropical coastal waters around Hong Kong, algal blooms and red tides are usually first sighted in the Mirs Bay, in the eastern waters of Hong Kong. A calibrated three-dimensional hydrodynamic model for the Pearl River Estuary (Delft3D) has been applied to the study of the physical hydrography of Hong Kong waters and its relationship with algal bloom transport patterns in the dry and wet seasons. The general 3D hydrodynamic circulation and salinity structure in the partially-mixed estuary are presented. Extensive numerical surface drogue tracking experiments are performed for algal blooms that are initiated in the Mirs Bay under different seasonal, wind and tidal conditions. The probability of bloom impact on the Victoria Harbour and nearby urban coastal waters is estimated. The computations show that: I) In the wet season (May~August), algal blooms initiated in the Mirs Bay will move in a clockwise direction out of the bay, and be transported away from Hong Kong due to SW monsoon winds which drive the SW to NE coastal current; ii) In the dry season (November~April), algal blooms initiated in the northeast Mirs Bay will move in an anti-clockwise direction and be carried away into southern waters due to the NE to SW coastal current driven by the NE monsoon winds; the bloom typically flows past the east edge of the Victoria Harbour and nearby waters. Finally, the role of hydrodynamic transport in an important episodic event - the spring 1998 massive red tide - is quantitatively examined. It is shown that the strong NE to E wind during late March to early April, coupled with the diurnal tide at the beginning of April, significantly increased the probability of bloom transport into the Port Shelter and East Lamma Channel, resulting in the massive fish kill. The results provide a basis for risk assessment of harmful algal bloom (HAB) impact on urban coastal waters around the Victoria Habour.

  11. Assessing the Field of Media Management and Economics Research: Looking Back, Looking Forward

    Directory of Open Access Journals (Sweden)

    Alan B. Albarran

    2014-01-01

    Full Text Available Me siento honrado de que mi amigo y colega, el Dr. Germán Arango, me pidapresentar una contribución a este número especial de Palabra Clave dedicadoal tema de los mercados y la industria de los medios de comunicación, quetambién servirá para lanzar nuevamente a la Asociación Latino Americana deGestión de Medios (LAMMA por sus siglas en inglés. Ha sido un privilegiopara mí el poder visitar la Universidad de La Sabana dos veces durante mi carrera,y he tenido la oportunidad de reunirme con Germán y sus colegas envarias reuniones internacionales a lo largo de los últimos años. Este trabajoexaminará el campo de la gestión de los medios de comunicación y la investigacióneconómica analizando su pasado y teniendo en cuenta el futuro. Ademásde proveer una visión histórica, el documento discutirá el desarrollo de lagestión y la economía de los medios como un área de investigación académica,considerará los desafíos que enfrenta el campo en el siglo XXI, y presentaráideas para una agenda de investigación para la próxima década. El objetivoes proveer una perspectiva histórica y una visión heurística que dé cuenta dehacia dónde se dirige este campo en términos de investigación y desarrollo.Para este ensayo, extraigo en gran medida datos de un documento que presentécon ocasión del Simposio de Investigación de 2012, dedicado a la “Gestiónde Medios e Investigación de la Economía en un Ambiente Transmedia”,que se celebró durante la convención anual de la Asociación de Educaciónpor Radiodifusión. Ese documento se publicó en 2013 y el editor me ha dadoel permiso para citar en este espacio el texto de ese trabajo (Albarran, 2013.

  12. The extended Kalman filter for forecast of algal bloom dynamics.

    Science.gov (United States)

    Mao, J Q; Lee, Joseph H W; Choi, K W

    2009-09-01

    A deterministic ecosystem model is combined with an extended Kalman filter (EKF) to produce short term forecasts of algal bloom and dissolved oxygen dynamics in a marine fish culture zone (FCZ). The weakly flushed FCZ is modelled as a well-mixed system; the tidal exchange with the outer bay is lumped into a flushing rate that is numerically determined from a three-dimensional hydrodynamic model. The ecosystem model incorporates phytoplankton growth kinetics, nutrient uptake, photosynthetic production, nutrient sources from organic fish farm loads, and nutrient exchange with a sediment bed layer. High frequency field observations of chlorophyll, dissolved oxygen (DO) and hydro-meteorological parameters (sampling interval Deltat=1 day, 2h, 1h, respectively) and bi-weekly nutrient data are assimilated into the model to produce the combined state estimate accounting for the uncertainties. In addition to the water quality state variables, the EKF incorporates dynamic estimation of algal growth rate and settling velocity. The effectiveness of the EKF data assimilation is studied for a wide range of sampling intervals and prediction lead-times. The chlorophyll and dissolved oxygen estimated by the EKF are compared with field data of seven algal bloom events observed at Lamma Island, Hong Kong. The results show that the EKF estimate well captures the nonlinear error evolution in time; the chlorophyll level can be satisfactorily predicted by the filtered model estimate with a mean absolute error of around 1-2 microg/L. Predictions with 1-2 day lead-time are highly correlated with the observations (r=0.7-0.9); the correlation stays at a high level for a lead-time of 3 days (r=0.6-0.7). Estimated algal growth and settling rates are in accord with field observations; the more frequent DO data can compensate for less frequent algal biomass measurements. The present study is the first time the EKF is successfully applied to forecast an entire algal bloom cycle, suggesting the