Science.gov

Sample records for dzvnieku dinana kompleks

  1. Analysis of indoor environmental quality influence toward occupants' work performance in Kompleks Eureka, USM

    NASA Astrophysics Data System (ADS)

    Zainon, Mohamad Rizal; Baharum, Faizal; Seng, Loh Yong

    2016-08-01

    The indoor environment much more important for people health and comfort than the outdoor environment. This scenario would make the performance of occupants at their work more important than energy costs in the building. So, this task is to upgrade indoor environmental quality conditions for comfort and work performance of occupants in Kompleks Eureka, USM while conserving energy of the building.. Recent studies have shown an important impact of the indoor thermal environment on occupants' work performance. Also studies on occupants medical leave show a very high loss of work time and working performance, which have important economical consequences for companies. The paper will mainly dealing with the indoor environmental qualities, such as thermal comfort level, air quality, lighting, and acoustic quality. The studies before showing that comfortable room temperatures, increased air ventilation above normal recommendation, comfortable acoustic surrounding will increases the work performance of occupants in Kompleks Eureka, USM.

  2. Morphological and molecular characterization of Magnaporthe oryzae (fungus) from infected rice leaf samples

    NASA Astrophysics Data System (ADS)

    Muni, Nurulhidayah Mat; Nadarajah, Kalaivani

    2014-09-01

    Magnaporthe oryzae is a plant-pathogenic fungus that causes a serious disease affecting rice called rice blast. Outbreaks of rice blast have been a threat to the global production of rice. This fungal disease is estimated to cause production losses of US55 million each year in South and Southeast Asia. It has been used as a primary model for elucidating various aspects of the host-pathogen interaction with its host. We have isolated five isolates of Magnaporthe oryzae from diseased leaf samples obtained from the field at Kompleks Latihan MADA, Kedah, Malaysia. We have identified the isolates using morphological and microscopic studies on the fungal spores and the lesions on the diseased leaves. Amplification of the internal transcribed spacer (ITS) was carried out with universal primers ITS1 and ITS4. The sequence of each isolates showed at least 99% nucleotide identity with the corresponding sequence in GenBank for Magnaporthe oryzae.

  3. Single spore isolation and morphological characterization of local Malaysian isolates of rice blast fungus Magnoporthe grisea

    NASA Astrophysics Data System (ADS)

    Mishra, Ankitta; Ratnam, Wickneswari; Bhuiyan, Md Atiqur Rahman; Ponaya, Ariane; Jena, Khisord K.

    2015-09-01

    Rice blast is a destructive disease, caused by the fungal pathogen Magnaporthe grisea. It causes considerable damage to rice and leads to crop loss in rice growing regions worldwide. Although fungicides can be used to control rice blast, they generate additional cost in rice production and contamination of environment and food. Therefore, the use of resistant varieties is thought to be one of the most economically and environmentally efficient ways of crop protection from the disease. Six new local Malaysian isolates of M. grisea were isolated using single spore isolation method. Five isolates were from infected leaf samples collected from Kompleks Latihan MADA, Kedah and one was from Kelantan. These isolates were identified using morphological characteristics and microscopic studies and later confirmed by ITSequences. These isolates were induced to sporulate and used for greenhouse screening on two differential rice varieties: Mahsuri (susceptible) and Pongsu Seribu 2 (resistant). Among the 6 isolates, isolate number 3 was found to be the most virulent showing high sporulation while isolate number 4 was very slow growing, and the least virulent.

  4. [Assessment of a risk from exposure to atmosphere bus industrial emissions].

    PubMed

    Stepkin, Iu I; Kuzmichev, M K

    2009-01-01

    The carcinogenic and noncarcinogenic risks to health were estimated in accordance with the requirements stated in the guide P 2.1.10.1920-04 "Guidelines for assessing the health risk in the population exposed to the chemicals polluting the environment" (approved by G. G. Onishchenko, state sanitary inspector on March 5, 2004) and comprised four successive steps: 1) identification of a hazard; 2) estimation of a dose-response relationship; 3) evaluation of exposure of the population to chemical substances; 4) characterization of a risk, by calculating the individual carcinogenic risk, hazard coefficients and indices characterizing the noncarcinogenic risk. The performed assessment of the health risk to the population living in the area exposed to the ambient air pollutant emissions by the AOA "Shinnyi Kompleks Amtel-Chenozymye" (Amtel-Chernozem Tyre Complex) allowed determination of priority pollutants, by taking into account their effect on human health. The individual carcinogenic risk to health has been found to be higher than the acceptable (safe) level (10-4) was due to the probable exposure to a 2-heptane fraction (nefras ChS 94/99) and hexavalent chromium. The highest non-carcinogenic risk to human was also due to the heptane fraction (nefras ChS 94/99) (hazard coefficient > 1). PMID:19354178

  5. Influence of the Plow Filling and Thread Angle onto the Plow Head Efficiency / Wpływ Współczynnika Wypełnienia Organu Oraz Kąta Nawinięcia Płata Ślimaka Na Sprawność Ładowania Frezującymi Organami Ślimakowymi

    NASA Astrophysics Data System (ADS)

    Wydro, Tomasz

    2015-03-01

    Laboratory examinations on the plow heads at various filling rate and material grain-size, as well as various values of worm thread angle of the plow head have been executed. Influence of the worm thread angle and plow head filling onto optimal loading efficiency, has also been tested. Eksploatacja węgla kamiennego w Polsce odbywa się przy zastosowaniu kompleksów ścianowych kombajnowych jak również kompleksów strugowych. Ten drugi z kompleksów jest znacznie mniej rozpowszechniony w Polsce i stosowany do pokładów o miąższości poniżej 1,5 m. Do głównych maszyn i urządzeń ścianowego kompleksu kombajnowego należy zaliczyć maszynę urabiająco - ładującą jaką jest kombajn ścianowy, obudowę zmechanizowaną oraz przenośnik ścianowy. Elementami roboczymi w kombajnie ścianowym są frezujące organy ślimakowe, które mocowane są na ramionach kombajnu. Zadaniem frezujących organów ślimakowych jest realizacja jednocześnie dwóch procesów. Pierwszym z procesów jest frezowanie czyli oddzielanie kawałków węgla od calizny. Drugi proces to proces ładowania urobku, polegający na ciągłym odprowadzaniu urobku na przenośnik ścianowy. Równoległość realizacji pracy tych dwóch procesów, uniemożliwia w warunkach rzeczywistych przeprowadzenie obserwacji procesu ładowania i dokonania jakichkolwiek pomiarów i analiz. Dlatego też, przeprowadzane badania i pomiary opisywane w literaturze zwykle miały charakter modelowy lub stanowiskowy, gdyż tylko takie warunki umożliwiały rozdział tych funkcji organu (Chodura, 1992; Hyong Jong Gol, 1990; Jaszczuk & Tomaszewski, 2004; Krauze, 1997). W związku z powyższym, chcąc bliżej poznać prawa rządzące procesem ładowania, zdecydowano się na rozdzielenie tych dwóch procesów i przeprowadzenie badań laboratoryjnych. Przedmiotowe badania zostały przeprowadzone w laboratorium Katedry Maszyn Górniczych, Przeróbczych i Transportowych AGH. W badaniach uwzgl

  6. State of oral cavity hygiene, sIgA level, mineral content of oral fluid, and optimization of preventive intervention in children with enamel hypoplasia and underlying comorbidity.

    PubMed

    Liubarets, S F; Kopylova, O V; Belingio, T O; Kolbasynska, V M; Sechina, I M; Liubarets, T F

    2015-12-01

    Meta doslidzhennia. Pidvyshchyty efektyvnist' profilaktyky kariiesu u ditey z gipoplaziieiu emali shliakhom vprovad zhennia kompleksu zakhodiv, spriamovanykh na optymizatsiiu gigiieny porozhnyny rota, rivnia sIgA ta vmistu mineral' nykh skladovykh rotovoI ridyny.Materialy i metody. Ob’iekt doslidzhennia – gipoplaziia emali postiynykh zubiv. Predmet doslidzhennia – gigiienichnyy stan porozhnyny rota, sekretornyy imunoglobulin klasu A (sIgA), riven' zagal'nogo kal'tsiiu ta ortofosfativ v rotoviy ridyni. Metody doslidzhennia: vital'ne zabarvlennia emali, transiliuminatsiynyy, imunofermentnyy ta fo tometrychnyy metody, pokaznyky gigiienichnogo stanu porozhnyny rota (indeks Green Vermillion (1964), indeks Silness Loe (1964, 1967)). Provedena otsinka gigiienichnogo stanu porozhnyny rota ta vyznachennia rivnia sIgA, kal'tsiiu ta ortofosfativ v rotoviy ridyni 43 ditey vikom 6–14 rokiv (grupa No 1 – 21 osoba, grupa No 2 – 22 oso by) z systemnoiu gipoplaziieiu emali na tli dyfuznogo netoksychnogo vola, eutyreozu, narodzhenykh vid bat'kiv – uchasnykiv likvidatsiI naslidkiv avariI na ChAES ta evakuyovanykh z terytoriy obov’iazkovogo vidselennia. Grupa No 1 – dity, iakym pryznachavsia kompleks profilaktychnykh zakhodiv, shcho vkliuchav rekomendatsiI shchodo vyboru zasobiv i predmetiv dlia dogliadu za porozhnynoiu rota ta navchannia standartnomu metodu chyshchennia zubiv. Grupa No 2 – dity, u iakykh dodatkovo zastosovuvaly remineralizuiuchyy gel', shcho mistyt' kal'tsiy, fosfor, magniy ta ksylit („Vysno vok DerzhavnoI sanitarno epidemiologichnoI sluzhby UkraIny No05.03.02 03/9351 vid 07.02.2014r. ”). Rezul'taty. Gigiienichnyy stan porozhnyny rota ditey obokh grup buv otsinenyy zgidno z kryteriiem „nezadovil'nyy ” indeksu Green Vermillion ta kryteriiem „poganyy ” indeksu Silness Loe. Pislia provedennia profilaktychnykh zakhodiv u ditey grup No 1 ta No 2 pokrashchyvsia gigiienichnyy stan porozhnyny rota: suttieve znyzhennia indeksu Green Vermillion

  7. Tu-144LL SST Flying Laboratory Landing on Runway at Zhukovsky Air Development Center near Moscow, Ru

    NASA Technical Reports Server (NTRS)

    1998-01-01

    The Tupolev Tu-144LL SST Flying Laboratory rolls down the runway at the Zhukovsky Air Development Center near Moscow, Russia, after a 1998 test flight. NASA teamed with American and Russian aerospace industries for an extended period in a joint international research program featuring the Russian-built Tu-144LL supersonic aircraft. The object of the program was to develop technologies for a proposed future second-generation supersonic airliner to be developed in the 21st Century. The aircraft's initial flight phase began in June 1996 and concluded in February 1998 after 19 research flights. A shorter follow-on program involving seven flights began in September 1998 and concluded in April 1999. All flights were conducted in Russia from Tupolev's facility at the Zhukovsky Air Development Center near Moscow. The centerpiece of the research program was the Tu 144LL, a first-generation Russian supersonic jetliner that was modified by its developer/builder, Tupolev ANTK (aviatsionnyy nauchno-tekhnicheskiy kompleks-roughly, aviation technical complex), into a flying laboratory for supersonic research. Using the Tu-144LL to conduct flight research experiments, researchers compared full-scale supersonic aircraft flight data with results from models in wind tunnels, computer-aided techniques, and other flight tests. The experiments provided unique aerodynamic, structures, acoustics, and operating environment data on supersonic passenger aircraft. Data collected from the research program was being used to develop the technology base for a proposed future American-built supersonic jetliner. Although actual development of such an advanced supersonic transport (SST) is currently on hold, commercial aviation experts estimate that a market for up to 500 such aircraft could develop by the third decade of the 21st Century. The Tu-144LL used in the NASA-sponsored research program was a 'D' model with different engines than were used in production-model aircraft. Fifty experiments

  8. Tu-144LL SST Flying Laboratory on Taxiway at Zhukovsky Air Development Center near Moscow, Russia

    NASA Technical Reports Server (NTRS)

    1998-01-01

    The sleek lines of the Tupolev Tu-144LL are evident as it sits on the taxiway at the Zhukovsky Air Development Center near Moscow, Russia. NASA teamed with American and Russian aerospace industries for an extended period in a joint international research program featuring the Russian-built Tu-144LL supersonic aircraft. The object of the program was to develop technologies for a proposed future second-generation supersonic airliner to be developed in the 21st Century. The aircraft's initial flight phase began in June 1996 and concluded in February 1998 after 19 research flights. A shorter follow-on program involving seven flights began in September 1998 and concluded in April 1999. All flights were conducted in Russia from Tupolev's facility at the Zhukovsky Air Development Center near Moscow. The centerpiece of the research program was the Tu 144LL, a first-generation Russian supersonic jetliner that was modified by its developer/builder, Tupolev ANTK (aviatsionnyy nauchno-tekhnicheskiy kompleks-roughly, aviation technical complex), into a flying laboratory for supersonic research. Using the Tu-144LL to conduct flight research experiments, researchers compared full-scale supersonic aircraft flight data with results from models in wind tunnels, computer-aided techniques, and other flight tests. The experiments provided unique aerodynamic, structures, acoustics, and operating environment data on supersonic passenger aircraft. Data collected from the research program was being used to develop the technology base for a proposed future American-built supersonic jetliner. Although actual development of such an advanced supersonic transport (SST) is currently on hold, commercial aviation experts estimate that a market for up to 500 such aircraft could develop by the third decade of the 21st Century. The Tu-144LL used in the NASA-sponsored research program was a 'D' model with different engines than were used in production-model aircraft. Fifty experiments were proposed

  9. Russian Tu-144LL SST Flying Laboratory Landing with Drag Chutes at Zhukovsky Air Development Center

    NASA Technical Reports Server (NTRS)

    1997-01-01

    The modified Tupolev Tu-144 supersonic flying laboratory touches down and deploys a trio of drag chutes following a test flight at the Zhukovsky Air Development Center near Moscow, Russia, in July 1997. NASA teamed with American and Russian aerospace industries for an extended period in a joint international research program featuring the Russian-built Tu-144LL supersonic aircraft. The object of the program was to develop technologies for a proposed future second-generation supersonic airliner to be developed in the 21st Century. The aircraft's initial flight phase began in June 1996 and concluded in February 1998 after 19 research flights. A shorter follow-on program involving seven flights began in September 1998 and concluded in April 1999. All flights were conducted in Russia from Tupolev's facility at the Zhukovsky Air Development Center near Moscow. The centerpiece of the research program was the Tu 144LL, a first-generation Russian supersonic jetliner that was modified by its developer/builder, Tupolev ANTK (aviatsionnyy nauchno-tekhnicheskiy kompleks-roughly, aviation technical complex), into a flying laboratory for supersonic research. Using the Tu-144LL to conduct flight research experiments, researchers compared full-scale supersonic aircraft flight data with results from models in wind tunnels, computer-aided techniques, and other flight tests. The experiments provided unique aerodynamic, structures, acoustics, and operating environment data on supersonic passenger aircraft. Data collected from the research program was being used to develop the technology base for a proposed future American-built supersonic jetliner. Although actual development of such an advanced supersonic transport (SST) is currently on hold, commercial aviation experts estimate that a market for up to 500 such aircraft could develop by the third decade of the 21st Century. The Tu-144LL used in the NASA-sponsored research program was a 'D' model with different engines than were used

  10. Russian Tu-144LL SST Flying Laboratory Landing at Zhukovsky Air Development Center

    NASA Technical Reports Server (NTRS)

    1997-01-01

    The Tupolev Tu-144LL supersonic flying laboratory lifts off from the Zhukovsky Air Development Center near Moscow, Russia, on a 1997 test flight. NASA teamed with American and Russian aerospace industries for an extended period in a joint international research program featuring the Russian-built Tu-144LL supersonic aircraft. The object of the program was to develop technologies for a proposed future second-generation supersonic airliner to be developed in the 21st Century. The aircraft's initial flight phase began in June 1996 and concluded in February 1998 after 19 research flights. A shorter follow-on program involving seven flights began in September 1998 and concluded in April 1999. All flights were conducted in Russia from Tupolev's facility at the Zhukovsky Air Development Center near Moscow. The centerpiece of the research program was the Tu 144LL, a first-generation Russian supersonic jetliner that was modified by its developer/builder, Tupolev ANTK (aviatsionnyy nauchno-tekhnicheskiy kompleks-roughly, aviation technical complex), into a flying laboratory for supersonic research. Using the Tu-144LL to conduct flight research experiments, researchers compared full-scale supersonic aircraft flight data with results from models in wind tunnels, computer-aided techniques, and other flight tests. The experiments provided unique aerodynamic, structures, acoustics, and operating environment data on supersonic passenger aircraft. Data collected from the research program was being used to develop the technology base for a proposed future American-built supersonic jetliner. Although actual development of such an advanced supersonic transport (SST) is currently on hold, commercial aviation experts estimate that a market for up to 500 such aircraft could develop by the third decade of the 21st Century. The Tu-144LL used in the NASA-sponsored research program was a 'D' model with different engines than were used in production-model aircraft. Fifty experiments were

  11. Russian Tu-144LL SST Flying Laboratory Takeoff at Zhukovsky Air Development Center

    NASA Technical Reports Server (NTRS)

    1997-01-01

    With its nose drooped and canards extended, the Tupolev Tu-144LL supersonic flying laboratory lifts off from the Zhukovsky Air Development Center near Moscow, Russia on a 1997 test flight. NASA teamed with American and Russian aerospace industries for an extended period in a joint international research program featuring the Russian-built Tu-144LL supersonic aircraft. The object of the program was to develop technologies for a proposed future second-generation supersonic airliner to be developed in the 21st Century. The aircraft's initial flight phase began in June 1996 and concluded in February 1998 after 19 research flights. A shorter follow-on program involving seven flights began in September 1998 and concluded in April 1999. All flights were conducted in Russia from Tupolev's facility at the Zhukovsky Air Development Center near Moscow. The centerpiece of the research program was the Tu 144LL, a first-generation Russian supersonic jetliner that was modified by its developer/builder, Tupolev ANTK (aviatsionnyy nauchno-tekhnicheskiy kompleks-roughly, aviation technical complex), into a flying laboratory for supersonic research. Using the Tu-144LL to conduct flight research experiments, researchers compared full-scale supersonic aircraft flight data with results from models in wind tunnels, computer-aided techniques, and other flight tests. The experiments provided unique aerodynamic, structures, acoustics, and operating environment data on supersonic passenger aircraft. Data collected from the research program was being used to develop the technology base for a proposed future American-built supersonic jetliner. Although actual development of such an advanced supersonic transport (SST) is currently on hold, commercial aviation experts estimate that a market for up to 500 such aircraft could develop by the third decade of the 21st Century. The Tu-144LL used in the NASA-sponsored research program was a 'D' model with different engines than were used in production

  12. Russian Tu-144LL SST Flying Laboratory Landing at Zhukovsky Air Development Center

    NASA Technical Reports Server (NTRS)

    1997-01-01

    The Tupolev Tu-144LL supersonic flying laboratory touches down at the Zhukovsky Air Development Center near Moscow, Russia, following a 1997 test flight. NASA teamed with American and Russian aerospace industries for an extended period in a joint international research program featuring the Russian-built Tu-144LL supersonic aircraft. The object of the program was to develop technologies for a proposed future second-generation supersonic airliner to be developed in the 21st Century. The aircraft's initial flight phase began in June 1996 and concluded in February 1998 after 19 research flights. A shorter follow-on program involving seven flights began in September 1998 and concluded in April 1999. All flights were conducted in Russia from Tupolev's facility at the Zhukovsky Air Development Center near Moscow. The centerpiece of the research program was the Tu 144LL, a first-generation Russian supersonic jetliner that was modified by its developer/builder, Tupolev ANTK (aviatsionnyy nauchno-tekhnicheskiy kompleks-roughly, aviation technical complex), into a flying laboratory for supersonic research. Using the Tu-144LL to conduct flight research experiments, researchers compared full-scale supersonic aircraft flight data with results from models in wind tunnels, computer-aided techniques, and other flight tests. The experiments provided unique aerodynamic, structures, acoustics, and operating environment data on supersonic passenger aircraft. Data collected from the research program was being used to develop the technology base for a proposed future American-built supersonic jetliner. Although actual development of such an advanced supersonic transport (SST) is currently on hold, commercial aviation experts estimate that a market for up to 500 such aircraft could develop by the third decade of the 21st Century. The Tu-144LL used in the NASA-sponsored research program was a 'D' model with different engines than were used in production-model aircraft. Fifty experiments

  13. Identity of Innovative Multifunctional Material Manufacturing Business in Latvia / Inovatīvu Daudzfunkcionālo Materiālu Ražotāju Identitāte Latvijā

    NASA Astrophysics Data System (ADS)

    Geipele, I.; Staube, T.; Ciemleja, G.; Zeltins, N.; Ekmanis, Yu.

    2015-08-01

    The publication comprises the results from the practical scientific investigation to define the profile and distinctions of the Latvian innovative multifunctional material manufacturing industry. The research is carried out by a holistic approach, including expert interviews, qualitative analysis of the official register data, practical survey, and financial data analysis. The paper seeks to give the detailed data on a technological profile of the mentioned representative companies, if there is a synergy or tough competition in the Latvian market. The current research is topical, because it is unique and does not have analogues in Latvia, and the research is timely due to correspondence with recently stated Research and Innovation Strategies for Smart Specialisation in Latvia. The main findings are associated with recognition of the factors that make impact on commercialisation of the finished goods, obtained financial results and planned directions of development of the respondent companies. Publikācija sniedz veiktā zinātniski praktiskā pētījuma rezultātus, kura ietvaros tika noteikts Latvijas inovatīvu daudzfunkcionālo materiālu ražotāju darbības profils un identitāte. Pētījumā tika izmantota kompleksās analīzes metode, kas ietvēra ekspertu intervijas, uzņēmumu oficiāli reģistrēto datu kvalitatīvo analīzi, zinātniski praktisko aptauju, kā arī pētāmo uzņēmumu finanšu darbības rezultātu analīzi. Zinātniskais darbs sniedz izsmeļošu informāciju par mērķa uzņēmumu tehnoloģisko profilu un pēta, vai Latvijas mērķa ražošanas nozarē ir sinerģijas vai sīvās konkurences pazīmes. Šim zinātniskajam pētījumam ir noteikta aktualitāte saskaņā ar tā unikalitāti Latvijas valsts mērogā un atbilstība Viedās specializācijas stratēģijai. Pētījuma galvenie secinājumi ir saistīti ar uzņēmumu produkcijas komercializācijas ietekmējošo faktoru apzināšanu, sasniegtajiem finansiālajiem rezultātiem un pl

  14. Tu-144LL SST Flying Laboratory Side View of Nose, with a TU-144D on Ramp

    NASA Technical Reports Server (NTRS)

    1998-01-01

    A Tupolev Tu-144D supersonic jetliner is framed by the drooped nose and forward fuselage of the Tu-144LL supersonic flying laboratory at the Zhukovsky Air Development Center near Moscow, Russia, in 1998. NASA teamed with American and Russian aerospace industries for an extended period in a joint international research program featuring the Russian-built Tu-144LL supersonic aircraft. The object of the program was to develop technologies for a proposed future second-generation supersonic airliner to be developed in the 21st Century. The aircraft's initial flight phase began in June 1996 and concluded in February 1998 after 19 research flights. A shorter follow-on program involving seven flights began in September 1998 and concluded in April 1999. All flights were conducted in Russia from Tupolev's facility at the Zhukovsky Air Development Center near Moscow. The centerpiece of the research program was the Tu 144LL, a first-generation Russian supersonic jetliner that was modified by its developer/builder, Tupolev ANTK (aviatsionnyy nauchno-tekhnicheskiy kompleks-roughly, aviation technical complex), into a flying laboratory for supersonic research. Using the Tu-144LL to conduct flight research experiments, researchers compared full-scale supersonic aircraft flight data with results from models in wind tunnels, computer-aided techniques, and other flight tests. The experiments provided unique aerodynamic, structures, acoustics, and operating environment data on supersonic passenger aircraft. Data collected from the research program was being used to develop the technology base for a proposed future American-built supersonic jetliner. Although actual development of such an advanced supersonic transport (SST) is currently on hold, commercial aviation experts estimate that a market for up to 500 such aircraft could develop by the third decade of the 21st Century. The Tu-144LL used in the NASA-sponsored research program was a 'D' model with different engines than were used

  15. Tu-144LL SST Flying Laboratory Front View with Nose Dropped for Takeoff and Landing

    NASA Technical Reports Server (NTRS)

    1998-01-01

    A front view of the Tupolev Tu-144LL supersonic flying laboratory at the Zhukovsky Air Development Center near Moscow, Russia. The plane's nose droops down for take off and landing and is then raised for high-speed flight. NASA teamed with American and Russian aerospace industries for an extended period in a joint international research program featuring the Russian-built Tu-144LL supersonic aircraft. The object of the program was to develop technologies for a proposed future second-generation supersonic airliner to be developed in the 21st Century. The aircraft's initial flight phase began in June 1996 and concluded in February 1998 after 19 research flights. A shorter follow-on program involving seven flights began in September 1998 and concluded in April 1999. All flights were conducted in Russia from Tupolev's facility at the Zhukovsky Air Development Center near Moscow. The centerpiece of the research program was the Tu 144LL, a first-generation Russian supersonic jetliner that was modified by its developer/builder, Tupolev ANTK (aviatsionnyy nauchno-tekhnicheskiy kompleks-roughly, aviation technical complex), into a flying laboratory for supersonic research. Using the Tu-144LL to conduct flight research experiments, researchers compared full-scale supersonic aircraft flight data with results from models in wind tunnels, computer-aided techniques, and other flight tests. The experiments provided unique aerodynamic, structures, acoustics, and operating environment data on supersonic passenger aircraft. Data collected from the research program was being used to develop the technology base for a proposed future American-built supersonic jetliner. Although actual development of such an advanced supersonic transport (SST) is currently on hold, commercial aviation experts estimate that a market for up to 500 such aircraft could develop by the third decade of the 21st Century. The Tu-144LL used in the NASA-sponsored research program was a 'D' model with different

  16. Tu-144LL SST Flying Laboratory in Flight

    NASA Technical Reports Server (NTRS)

    1998-01-01

    The delta wing of the Tupolev Tu-144LL supersonic flying laboratory is evident in this view from underneath the aircraft during a 1998 test flight at the Zhukovsky Air Development Center near Moscow, Russia. NASA teamed with American and Russian aerospace industries for an extended period in a joint international research program featuring the Russian-built Tu-144LL supersonic aircraft. The object of the program was to develop technologies for a proposed future second-generation supersonic airliner to be developed in the 21st Century. The aircraft's initial flight phase began in June 1996 and concluded in February 1998 after 19 research flights. A shorter follow-on program involving seven flights began in September 1998 and concluded in April 1999. All flights were conducted in Russia from Tupolev's facility at the Zhukovsky Air Development Center near Moscow. The centerpiece of the research program was the Tu 144LL, a first-generation Russian supersonic jetliner that was modified by its developer/builder, Tupolev ANTK (aviatsionnyy nauchno-tekhnicheskiy kompleks-roughly, aviation technical complex), into a flying laboratory for supersonic research. Using the Tu-144LL to conduct flight research experiments, researchers compared full-scale supersonic aircraft flight data with results from models in wind tunnels, computer-aided techniques, and other flight tests. The experiments provided unique aerodynamic, structures, acoustics, and operating environment data on supersonic passenger aircraft. Data collected from the research program was being used to develop the technology base for a proposed future American-built supersonic jetliner. Although actual development of such an advanced supersonic transport (SST) is currently on hold, commercial aviation experts estimate that a market for up to 500 such aircraft could develop by the third decade of the 21st Century. The Tu-144LL used in the NASA-sponsored research program was a 'D' model with different engines than were

  17. Russian Tu-144LL SST Joint NASA Flying Laboratory - Flight November 29, 1996

    NASA Technical Reports Server (NTRS)

    1996-01-01

    The modified Tupolev Tu-144LL supersonic flying laboratory during a test flight from the Zhukovsky Airfield near Moscow, Russia. The 'LL' stands for Letayuschaya Laboratoriya, which means Flying Laboratory. NASA teamed with American and Russian aerospace industries for an extended period in a joint international research program featuring the Russian-built Tu-144LL supersonic aircraft. The object of the program was to develop technologies for a proposed future second-generation supersonic airliner to be developed in the 21st Century. The aircraft's initial flight phase began in June 1996 and concluded in February 1998 after 19 research flights. A shorter follow-on program involving seven flights began in September 1998 and concluded in April 1999. All flights were conducted in Russia from Tupolev's facility at the Zhukovsky Air Development Center near Moscow. The centerpiece of the research program was the Tu 144LL, a first-generation Russian supersonic jetliner that was modified by its developer/builder, Tupolev ANTK (aviatsionnyy nauchno-tekhnicheskiy kompleks-roughly, aviation technical complex), into a flying laboratory for supersonic research. Using the Tu-144LL to conduct flight research experiments, researchers compared full-scale supersonic aircraft flight data with results from models in wind tunnels, computer-aided techniques, and other flight tests. The experiments provided unique aerodynamic, structures, acoustics, and operating environment data on supersonic passenger aircraft. Data collected from the research program was being used to develop the technology base for a proposed future American-built supersonic jetliner. Although actual development of such an advanced supersonic transport (SST) is currently on hold, commercial aviation experts estimate that a market for up to 500 such aircraft could develop by the third decade of the 21st Century. The Tu-144LL used in the NASA-sponsored research program was a 'D' model with different engines than were

  18. Tu-144LL SST Flying Laboratory Lifts off Runway on a High-Speed Research Flight

    NASA Technical Reports Server (NTRS)

    1998-01-01

    The Tupolev Tu-144LL lifts off from the Zhukovsky Air Development Center near Moscow, Russia, on a 1998 test flight. NASA teamed with American and Russian aerospace industries for an extended period in a joint international research program featuring the Russian-built Tu-144LL supersonic aircraft. The object of the program was to develop technologies for a proposed future second-generation supersonic airliner to be developed in the 21st Century. The aircraft's initial flight phase began in June 1996 and concluded in February 1998 after 19 research flights. A shorter follow-on program involving seven flights began in September 1998 and concluded in April 1999. All flights were conducted in Russia from Tupolev's facility at the Zhukovsky Air Development Center near Moscow. The centerpiece of the research program was the Tu 144LL, a first-generation Russian supersonic jetliner that was modified by its developer/builder, Tupolev ANTK (aviatsionnyy nauchno-tekhnicheskiy kompleks-roughly, aviation technical complex), into a flying laboratory for supersonic research. Using the Tu-144LL to conduct flight research experiments, researchers compared full-scale supersonic aircraft flight data with results from models in wind tunnels, computer-aided techniques, and other flight tests. The experiments provided unique aerodynamic, structures, acoustics, and operating environment data on supersonic passenger aircraft. Data collected from the research program was being used to develop the technology base for a proposed future American-built supersonic jetliner. Although actual development of such an advanced supersonic transport (SST) is currently on hold, commercial aviation experts estimate that a market for up to 500 such aircraft could develop by the third decade of the 21st Century. The Tu-144LL used in the NASA-sponsored research program was a 'D' model with different engines than were used in production-model aircraft. Fifty experiments were proposed for the program and

  19. Tu-144LL SST Flying Laboratory in Flight

    NASA Technical Reports Server (NTRS)

    1998-01-01

    The Tupolev Tu-144LL supersonic flying laboratory shows off its sleek lines in a low-level pass over the Zhukovsky Air Development Center near Moscow, Russia, on a 1998 research flight. NASA teamed with American and Russian aerospace industries for an extended period in a joint international research program featuring the Russian-built Tu-144LL supersonic aircraft. The object of the program was to develop technologies for a proposed future second-generation supersonic airliner to be developed in the 21st Century. The aircraft's initial flight phase began in June 1996 and concluded in February 1998 after 19 research flights. A shorter follow-on program involving seven flights began in September 1998 and concluded in April 1999. All flights were conducted in Russia from Tupolev's facility at the Zhukovsky Air Development Center near Moscow. The centerpiece of the research program was the Tu 144LL, a first-generation Russian supersonic jetliner that was modified by its developer/builder, Tupolev ANTK (aviatsionnyy nauchno-tekhnicheskiy kompleks-roughly, aviation technical complex), into a flying laboratory for supersonic research. Using the Tu-144LL to conduct flight research experiments, researchers compared full-scale supersonic aircraft flight data with results from models in wind tunnels, computer-aided techniques, and other flight tests. The experiments provided unique aerodynamic, structures, acoustics, and operating environment data on supersonic passenger aircraft. Data collected from the research program was being used to develop the technology base for a proposed future American-built supersonic jetliner. Although actual development of such an advanced supersonic transport (SST) is currently on hold, commercial aviation experts estimate that a market for up to 500 such aircraft could develop by the third decade of the 21st Century. The Tu-144LL used in the NASA-sponsored research program was a 'D' model with different engines than were used in production

  20. Research Pilot C. Gordon Fullerton in Cockpit of TU-144LL SST Flying Laboratory

    NASA Technical Reports Server (NTRS)

    1998-01-01

    NASA Research pilot C. Gordon Fullerton sits in cockpit of TU-144LL SST Flying Laboratory. Fullerton was one of two NASA pilots who flew the aircraft as part of a joint high speed research program. NASA teamed with American and Russian aerospace industries for an extended period in a joint international research program featuring the Russian-built Tu-144LL supersonic aircraft. The object of the program was to develop technologies for a proposed future second-generation supersonic airliner to be developed in the 21st Century. The aircraft's initial flight phase began in June 1996 and concluded in February 1998 after 19 research flights. A shorter follow-on program involving seven flights began in September 1998 and concluded in April 1999. All flights were conducted in Russia from Tupolev's facility at the Zhukovsky Air Development Center near Moscow. The centerpiece of the research program was the Tu 144LL, a first-generation Russian supersonic jetliner that was modified by its developer/builder, Tupolev ANTK (aviatsionnyy nauchno-tekhnicheskiy kompleks-roughly, aviation technical complex), into a flying laboratory for supersonic research. Using the Tu-144LL to conduct flight research experiments, researchers compared full-scale supersonic aircraft flight data with results from models in wind tunnels, computer-aided techniques, and other flight tests. The experiments provided unique aerodynamic, structures, acoustics, and operating environment data on supersonic passenger aircraft. Data collected from the research program was being used to develop the technology base for a proposed future American-built supersonic jetliner. Although actual development of such an advanced supersonic transport (SST) is currently on hold, commercial aviation experts estimate that a market for up to 500 such aircraft could develop by the third decade of the 21st Century. The Tu-144LL used in the NASA-sponsored research program was a 'D' model with different engines than were used in

  1. Influence of the Plow Filling and Thread Angle onto the Plow Head Efficiency / Wpływ Współczynnika Wypełnienia Organu Oraz Kąta Nawinięcia Płata Ślimaka Na Sprawność Ładowania Frezującymi Organami Ślimakowymi

    NASA Astrophysics Data System (ADS)

    Wydro, Tomasz

    2015-03-01

    Laboratory examinations on the plow heads at various filling rate and material grain-size, as well as various values of worm thread angle of the plow head have been executed. Influence of the worm thread angle and plow head filling onto optimal loading efficiency, has also been tested. Eksploatacja węgla kamiennego w Polsce odbywa się przy zastosowaniu kompleksów ścianowych kombajnowych jak również kompleksów strugowych. Ten drugi z kompleksów jest znacznie mniej rozpowszechniony w Polsce i stosowany do pokładów o miąższości poniżej 1,5 m. Do głównych maszyn i urządzeń ścianowego kompleksu kombajnowego należy zaliczyć maszynę urabiająco - ładującą jaką jest kombajn ścianowy, obudowę zmechanizowaną oraz przenośnik ścianowy. Elementami roboczymi w kombajnie ścianowym są frezujące organy ślimakowe, które mocowane są na ramionach kombajnu. Zadaniem frezujących organów ślimakowych jest realizacja jednocześnie dwóch procesów. Pierwszym z procesów jest frezowanie czyli oddzielanie kawałków węgla od calizny. Drugi proces to proces ładowania urobku, polegający na ciągłym odprowadzaniu urobku na przenośnik ścianowy. Równoległość realizacji pracy tych dwóch procesów, uniemożliwia w warunkach rzeczywistych przeprowadzenie obserwacji procesu ładowania i dokonania jakichkolwiek pomiarów i analiz. Dlatego też, przeprowadzane badania i pomiary opisywane w literaturze zwykle miały charakter modelowy lub stanowiskowy, gdyż tylko takie warunki umożliwiały rozdział tych funkcji organu (Chodura, 1992; Hyong Jong Gol, 1990; Jaszczuk & Tomaszewski, 2004; Krauze, 1997). W związku z powyższym, chcąc bliżej poznać prawa rządzące procesem ładowania, zdecydowano się na rozdzielenie tych dwóch procesów i przeprowadzenie badań laboratoryjnych. Przedmiotowe badania zostały przeprowadzone w laboratorium Katedry Maszyn Górniczych, Przeróbczych i Transportowych AGH. W badaniach uwzgl

  2. Unique Project of Single-Cutting Head Longwall Shearer Used for Thin Coal Seams Exploitation / Projekt Jednoorganowego Kombajnu ŚCIANOWEGO O Specjalnej Konstrukcji Przeznaczonego do Eksploatacji POKŁADÓW Cienkich

    NASA Astrophysics Data System (ADS)

    Bołoz, Łukasz

    2013-12-01

    ciany co również korzystnie wpływa na wydobycie. Przekładkę realizować będą, oprócz układów przesuwnych sekcji, układy przesuwne napędów zlokalizowane w chodnikach lub ewentualnie obudowa skrzyżowań. Do sterowania położeniem kombajnu jednoorganowego, a w szczególności kierunkiem eksploatacji na wybiegu ściany (wznios, upad), zastosowane będą siłowniki korekcyjne łączące belkę układu przesuwnego sekcji z rynną przenośnika. Kopalnie jak i producenci sprzętu górniczego wykazują coraz większe zainteresowanie możliwością skutecznej eksploatacji pokładów cienki. Zaproponowany kompleks do eksploatacji cienkich pokładów wyposażony w kombajn jednoorganowy przeznaczony jest do pracy w technologii urabiania dwukierunkowego. Charakterystyczną cechą tej technologii jest brak fazy zawrębiania oraz praca na pełny zabiór na całej długości ściany. W przypadku zmiany grubości pokładu możliwa jest zmiana organu, natomiast sterowanie w kierunku wybiegu odbywać się będzie za pomocą siłowników korekcyjnych. Opracowanie technologii pracy kompleksu wyposażonego w kombajn jednoorganowy, analiza możliwego do osiągnięcia wydobycia dobowego, przy jego zastosowaniu oraz określenie wymaganych parametrów maszyn kompleksu ścianowego, a w szczególności kombajnu, potwierdza poprawność przyjętych założeń.

  3. Geotechnical Aspects of Revitalisation of Post-Mining Areas - An Example of the Adaptation of Katowice Hard Coal Mine for the New Silesian Museum / Geotechniczne aspekty rewitalizacji terenów pogórniczych - przykład adaptacji KWK "KATOWICE" na nowe muzeum śląskie

    NASA Astrophysics Data System (ADS)

    Cała, Marek; Ostręga, Anna

    2013-06-01

    południowej części terenu dawnej Kopalni "Katowice", na którym znajdują się zabytkowe obiekty przeznaczone do odrestaurowania i adaptacji dla nowych funkcji. Są to: - budynek maszyny wyciągowej Szybu "Warszawa" (MS-8), adaptowany dla celów gastronomicznych, - magazyn odzieżowy (MS-15), adaptowany dla celów wystawienniczych-Centrum Scenografii Polskiej, - wieża wyciągowa Szybu "Warszawa" (MS-79), adaptowana dla funkcji widokowych. Pozostała część terenu dawnej KWK "Katowice" wraz zabytkowymi obiektami, w miarę możliwości finansowych włączana będzie w kompleks Muzeum Śląskiego. Oparcie koncepcji na idei minimalnej ingerencji w urbanistyczny układ zabytkowej kopalni, a jednocześnie potrzeba zapewnienia odpowiednich przestrzeni wystawienniczych, administracyjnych i miejsc postojowych znalazły odzwierciedlenie w zastosowaniu następujących rozwiązań: - adaptacji historycznych obiektów dla funkcji wystawienniczych, gastronomicznych i widokowych; - ulokowania nowobudowanych obiektów pod powierzchnią terenu w bezpośrednim sąsiedztwie zabytkowych obiektów. W związku z powyższym koniecznym było wykonanie prac wzmacniających posadowienie historycznych budynków oraz geotechnicznych zabezpieczeń skarp wykopu. W artykule pokazano technologiczne rozwiązania jakie zastosowano dla zabezpieczenia zabytkowych budynków, wieży wyciągowej oraz wykopu pod nowe obiekty Muzeum Śląskiego. Geotechniczne metody zabezpieczenia poszczególnych obiektów zaprojektowano na podstawie rozpoznania warunków geologiczno-inżynierskich oraz wykonanych analiz, co pozwoliło na zaproponowanie rozwiązań optymalnych zarówno pod względem technicznym jak i ekonomicznym. Z uwagi na skomplikowane uwarunkowania geotechniczne i wartość obiektów znajdujących się w strefie oddziaływania wykopu, przewidziano zastosowanie technologii pozwalającej uzyskać efekt maksymalnego wzmocnienia wgłębnego masywu. Zaprojektowane technologie zabezpieczenia mają na

  4. The Assessment of Susceptibility on Drainage in an Aquifer on the Basis of Pumping Tests in a Lignite Mine / Ocena Podatności Ośrodka Wodonośnego Na Odwodnienie Na Podstawie Próbnych Pompowań W Kopalni Węgla Brunatnego

    NASA Astrophysics Data System (ADS)

    Polak, Krzysztof; Kaznowska-Opala, Karolina; Pawlecka, Katarzyna; Różkowski, Kazimierz; Klich, Jerzy

    2015-03-01

    ężystej S, pozwala na wyznaczenie najbardziej korzystnych warunków eksploatacji studni. Wspomniane parametry hydrogeologiczne są składowymi równania opisującego hydrauliczną oporność ośrodka wodonośnego (12). Uogólniając, parametr B, może być kryterium wykorzystanym przy planowaniu i projektowaniu systemu odwodnienia studziennego, a także bieżącej oceny skuteczności współpracy systemu. Na rysunku 3. przedstawiono ideowo metodykę oznaczania tego parametru, za pomocą testu próbnego pompowania. Dotychczas interpretacja wyników próbnych pompowań koncentrowała się na ocenie technicznych warunków pracy otworów studziennych. W tym celu wykorzystywano współczynnik C występujący we wzorze Jacoba, który stanowił kryterium odbioru studni od wykonawcy. Zdaniem autorów niniejszej pracy wyniki próbnych pompowań należy interpretować w szerszym ujęciu, zwracając uwagę na parametr B, opisujący oporność hydrauliczną przy przepływie laminarnym wody w ośrodku wodonośnym. Analiza rozkładu przestrzennego zmian tego parametru pozwala na racjonalizację systemu odwodnienia studziennego w tym ocenę niezbędnych wyprzedzeń w zakresie wykonawstwa studni. W praktyce, ocenę geohydraulicznych warunków prowadzonego odwodnienia przeprowadzono przy wykorzystaniu zmodyfikowanej metody próbnych pompowań wielostopniowych opracowanych przez Klicha (1997). W pracy niniejszej przedstawiono wyniki próbnych pompowań w 27 studniach pracujących w kopalni odkrywkowej węgla brunatnego. Na rysunkach 5-9 przedstawiono wyniki oceny parametru B dla podstawowych kompleksów wodonośnych, dla których wykonano próbne pompowania badawcze. Podział wykresów wynika z przeznaczenia studni, co odpowiada podziałowi przedstawionemu na rysunku 4. Uzyskane wyniki pozwalają na sformułowanie wstępnych uogólnień. W tabeli 1. zaproponowano wstępną klasyfikację podatności ośrodka wodonośnego na prowadzone odwodnienie. Klasyfikacja może być wykorzystana do cel