98 research outputs found

    ΠœΠΎΠ΄Π΅Ρ€Π½ΠΈΠ·Π°Ρ†ΠΈΡ ΠΊΠΎΡ‚Π»Π° ΠΏΡ€ΠΈ ΠΏΠ΅Ρ€Π΅Ρ…ΠΎΠ΄Π΅ Π½Π° Π΄Ρ€ΡƒΠ³ΠΎΠΉ Ρ‚ΠΈΠΏ угля

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    ΠžΠ±ΡŠΠ΅ΠΊΡ‚ΠΎΠΌ исслСдования являСтся ΠšΠΎΡ‚Π΅Π» ПК-38 ст. β„–3А АО «Назаровская Π“Π Π­Π‘Β» ЦСль Ρ€Π°Π±ΠΎΡ‚Ρ‹ – ΠŸΠ΅Ρ€Π΅Π²ΠΎΠ΄ Π½Π° сТиганиС Назаровского ΠΈ Бородинского Π±ΡƒΡ€Ρ‹Ρ… ΡƒΠ³Π»Π΅ΠΉ с Ρ†Π΅Π»ΡŒΡŽ увСличСния номинальной ΠΏΡ€ΠΎΠΈΠ·Π²ΠΎΠ΄ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ ΠΊΠΎΡ‚Π»Π°. Π’ процСссС исслСдования ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΈΡΡŒ Π’Ρ‹Π±ΠΎΡ€ систСмы пылСприготовлСния ΠΈ ΠΎΠΏΡ‚ΠΈΠΌΠ°Π»ΡŒΠ½ΠΎΠΉ схСмы сТигания, расчСты ΠΈ ΠΊΠΎΠΌΠΏΠ°Π½ΠΎΠ²ΠΊΠΈ Ρ‚ΠΎΠΏΠΎΡ‡Π½ΠΎ Π³ΠΎΡ€Π΅Π»ΠΎΡ‡Π½Ρ‹Ρ… устройств, Ρ‚Π΅ΠΏΠ»ΠΎΠ²Ρ‹Π΅ ΠΈ аэродинамичСскиС расчСты ΠΊΠΎΡ‚Π»Π° ΠΈ систСмы пылСприготовлСния. Π Π΅ΡΡƒΡ€ΡΠΎΡΡ„Ρ„Π΅ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ ΠΈ рСсурсосбСрСТСниС .Π Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Π½Ρ‹ вопросы :ΠΎΡ…Ρ€Π°Π½Ρ‹ Ρ‚Ρ€ΡƒΠ΄Π°, ΠΎΡ…Ρ€Π°Π½Ρ‹ ΠΎΠΊΡ€ΡƒΠΆΠ°ΡŽΡ‰Π΅ΠΉ срСды.The object of the study is the Boiler PK-38 St. # 3A, JSC "Nazarovo GRES" Purpose – the conversion to the burning of Nazarovsky and Borodino lignite with the objective of increasing the rated capacity of the boiler. In the process of investigation the Choice of pulverizing system and the optimal scheme of combustion, the calculations and layout of furnace burners, thermal and aerodynamic calculations of boiler pulverizing system. Resource efficiency and resource conservation .Developed issues :labor protection, environmental protection

    Π€ΠΎΡ€ΠΌΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ Π±Ρ€Π΅Π½Π΄Π° ΠΊΠΎΠΌΠΏΠ°Π½ΠΈΠΈ Π² условиях ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½Π½ΠΎΠΉ ΠΊΠΎΠ½ΠΊΡƒΡ€Π΅Π½Ρ†ΠΈΠΈ Π½Π° мСстном Ρ€Ρ‹Π½ΠΊΠ΅

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    ΠΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½ΠΎΡΡ‚ΡŒ Π΄Π°Π½Π½ΠΎΠΉ Ρ€Π°Π±ΠΎΡ‚Ρ‹ состоит Π² комплСксном рассмотрСнии Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΎΠΊ ΠΊΠΎΠΌΠΌΡƒΠ½ΠΈΠΊΠ°Ρ‚ΠΈΠ²Π½Ρ‹Ρ… мСроприятий ΠΏΠΎ ΡΠΎΠ²Π΅Ρ€ΡˆΠ΅Π½ΡΡ‚Π²ΠΎΠ²Π°Π½ΠΈΡŽ Π±Ρ€Π΅Π½Π΄Π° с ΡƒΡ‡Π΅Ρ‚ΠΎΠΌ ΠΊΠΎΠ½ΠΊΡƒΡ€Π΅Π½Ρ‚Π½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π°. ΠžΠ±ΡŠΠ΅ΠΊΡ‚ΠΎΠΌ исслСдования Π΄Π°Π½Π½ΠΎΠΉ Ρ€Π°Π±ΠΎΡ‚Ρ‹ являСтся Π±Ρ€Π΅Π½Π΄ ΠΊΠΎΠΌΠΏΠ°Π½ΠΈΠΈ "Бтройся". ΠŸΡ€Π΅Π΄ΠΌΠ΅Ρ‚ΠΎΠΌ являСтся организация ΠΊΠΎΠΌΠΌΡƒΠ½ΠΈΠΊΠ°Ρ‚ΠΈΠ²Π½Ρ‹Ρ… мСроприятий ΠΏΠΎ ΡΠΎΠ²Π΅Ρ€ΡˆΠ΅Π½ΡΡ‚Π²ΠΎΠ²Π°Π½ΠΈΡŽ Π±Ρ€Π΅Π½Π΄Π° ΠΊΠΎΠΌΠΏΠ°Π½ΠΈΠΈ"Бтройся". ЦСль Π’ΠšΠ  – Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΊΠ° практичСских Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠΎΠ² Ρ€Π΅Π°Π»ΠΈΠ·Π°Ρ†ΠΈΠΈ ΠΊΠΎΠΌΠΌΡƒΠ½ΠΈΠΊΠ°Ρ‚ΠΈΠ²Π½Ρ‹Ρ… возмоТностСй ΠΏΠΎ Π±Ρ€Π΅Π½Π΄ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΡŽ ΠΊΠΎΠΌΠΏΠ°Π½ΠΈΠΈ "Бтройся" для продвиТСния ΠΊΠΎΠΌΠΏΠ°Π½ΠΈΠΈ Π½Π° Ρ€Ρ‹Π½ΠΎΠΊ Π³ΠΎΡ€ΠΎΠ΄Π° Вомска. ΠœΠ΅Ρ‚ΠΎΠ΄Ρ‹: Π°Π½Π°Π»ΠΈΠ·, сравнСниС, ΠΈΠ·ΡƒΡ‡Π΅Π½ΠΈΠ΅, наблюдСниС, Π°Π½ΠΊΠ΅Ρ‚ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅, синтСз тСорСтичСских ΠΈ эмпиричСских ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»ΠΎΠ². Новизна ΠΈ практичСская Π·Π½Π°Ρ‡ΠΈΠΌΠΎΡΡ‚ΡŒ Ρ€Π°Π±ΠΎΡ‚Ρ‹: Π½Π° основС ΠΌΠ°Ρ€ΠΊΠ΅Ρ‚ΠΈΠ½Π³ΠΎΠ²ΠΎΠ³ΠΎ исслСдования Π²Ρ‹Ρ€Π°Π±ΠΎΡ‚Π°Π½Ρ‹ практичСскиС Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΡ‹ Ρ€Π΅Π°Π»ΠΈΠ·Π°Ρ†ΠΈΠΈ ΠΊΠΎΠΌΠΌΡƒΠ½ΠΈΠΊΠ°Ρ‚ΠΈΠ²Π½Ρ‹Ρ… возмоТностСй.The relevance of this work lies in the integrated treatment of development of communicative activities to improve brand subject to competitive analysis. The research object of this work is the company brand "Build up". The subject is the organization of communicative activities to improve company brand"Build up". The purpose of the WRC – development of practical algorithms for the implementation of the communicative possibilities of branding the company's "Build" for promotion of the company on the market of the city of Tomsk. Methods: analysis, comparison, study, observation, questioning, synthesis of theoretical and empirical materials. The novelty and practical significance of the research: based on marketing research developed practical algorithms for implementing communicative possibilities

    TASKtrain: Bericht zur Evaluation des Blended Learning-Angebots TASKtrain

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    Der Bericht beschreibt die Evaluation des Blended Learning-Angebots TASKtrain. Im Zentrum steht eine benutzerorientierte Analyse des E-Learning-Angebots TASKtrain (siehe https://bildungsportal.sachsen.de/opal/auth/RepositoryEntry/6838648833?sess=true). Das E-Learning-Angebot wurde gemeinsam vom Medienzentrum der TU Dresden und von der Professur fΓΌr Allgemeine PΓ€dagogik der UniversitΓ€t Leipzig im Projekt TASKtrain - Kompetenzorientierte Qualifizierung von Hochschullehrenden zur Konzeption und Erstellung von E-PrΓΌfungsaufgaben entwickelt und erprobt (siehe http://tu-dresden.de/die_tu_dresden/zentrale_einrichtungen/mz/weiterbildungen_schulungen/tasktrain). Dieses Projekt wurde mit finanzieller UnterstΓΌtzung des SMWK realisiert

    High-efficiency frequency doubling of continuous-wave laser light

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    We report on the observation of high efficiency frequency doubling of 1550 nm continuous-wave laser light in a nonlinear cavity containing a periodically poled potassium titanyl phosphate crystal (PPKTP). The fundamental field had a power of 1.10 W and was converted into 1.05 W at 775 nm, yielding a total external conversion efficiency of (95 \pm 1)%. The latter value is based on the measured depletion of the fundamental field being consistent with the absolute values derived from numerical simulations. According to our model, the conversion efficiency achieved was limited by the non-perfect mode-matching into the nonlinear cavity and the pump power available. Our result shows that cavity-assisted frequency conversion based on PPKTP is well suited for low-decoherence frequency conversion of quantum states of light.Comment: 3 pages, 3 figure

    Drinking Motives, Personality Traits, Life Stressors - Identifying Pathways to Harmful Alcohol Use in Adolescence Using a Panel Network Approach

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    BACKGROUND AND AIMS: Models of alcohol use risk suggest that drinking motives represent the most proximal risk factors on which more distal factors converge. However, little is known about how distinct risk factors influence each other and alcohol use on different temporal scales (within a given moment vs. over time). We aimed to estimate the dynamic associations of distal (personality and life stressors) and proximal (drinking motives) risk factors, and their relationship to alcohol use in adolescence and early adulthood using a novel graphical vector autoregressive (GVAR) panel network approach.DESIGN, SETTING, AND CASES: We estimated panel networks on data from the IMAGEN study, a longitudinal European cohort study following adolescents across three waves (ages 16, 19, 22). Our sample consisted of 1829 adolescents (51% females) who reported alcohol use on at least one assessment wave.MEASUREMENTS: Risk factors included personality traits (NEO-FFI: neuroticism, extraversion, openness, agreeableness, and conscientiousness; SURPS: impulsivity and sensation seeking), stressful life events (LEQ: sum scores of stressful life events), and drinking motives (DMQ: social, enhancement, conformity, coping anxiety, coping depression). We assessed alcohol use (AUDIT: quantity and frequency) and alcohol-related problems (AUDIT: related problems).FINDINGS: Within a given moment, social (partial correlation (pcor) =0.17) and enhancement motives (pcor=0.15) co-occurred most strongly with drinking quantity and frequency, while coping depression motives (pcor=0.13), openness (pcor=0.05), and impulsivity (pcor=0.09) were related to alcohol-related problems. The temporal network showed no predictive associations between distal risk factors and drinking motives. Social motives (beta=0.21), previous alcohol use (beta=0.11), and openness (beta=0.10) predicted alcohol-related problems over time (all p&lt;0.01).CONCLUSIONS: Heavy and frequent alcohol use, along with social drinking motives, appear to be key targets for preventing the development of alcohol-related problems throughout late adolescence. We found no evidence for personality traits and life stressors predisposing towards distinct drinking motives over time.</p

    Drinking motives, personality traits and life stressors-identifying pathways to harmful alcohol use in adolescence using a panel network approach

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    BACKGROUND AND AIMS: Models of alcohol use risk suggest that drinking motives represent the most proximal risk factors on which more distal factors converge. However, little is known about how distinct risk factors influence each other and alcohol use on different temporal scales (within a given moment versus over time). We aimed to estimate the dynamic associations of distal (personality and life stressors) and proximal (drinking motives) risk factors, and their relationship to alcohol use in adolescence and early adulthood using a novel graphical vector autoregressive (GVAR) panel network approach.DESIGN, SETTING AND CASES: We estimated panel networks on data from the IMAGEN study, a longitudinal European cohort study following adolescents across three waves (aged 16, 19 and 22 years). Our sample consisted of 1829 adolescents (51% females) who reported alcohol use on at least one assessment wave.MEASUREMENTS: Risk factors included personality traits (NEO-FFI: neuroticism, extraversion, openness, agreeableness and conscientiousness; SURPS: impulsivity and sensation-seeking), stressful life events (LEQ: sum scores of stressful life events), and drinking motives [drinking motives questionnaire (DMQ): social, enhancement, conformity, coping anxiety and coping depression]. We assessed alcohol use [alcohol use disorders identification test (AUDIT): quantity and frequency] and alcohol-related problems (AUDIT: related problems).FINDINGS: Within a given moment, social [partial correlation (pcor) = 0.17] and enhancement motives (pcor = 0.15) co-occurred most strongly with drinking quantity and frequency, while coping depression motives (pcor = 0.13), openness (pcor = 0.05) and impulsivity (pcor = 0.09) were related to alcohol-related problems. The temporal network showed no predictive associations between distal risk factors and drinking motives. Social motives (beta = 0.21), previous alcohol use (beta = 0.11) and openness (beta = 0.10) predicted alcohol-related problems over time (all P  &lt; 0.01).CONCLUSIONS: Heavy and frequent alcohol use, along with social drinking motives, appear to be key targets for preventing the development of alcohol-related problems throughout late adolescence. We found no evidence for personality traits and life stressors predisposingtowards distinct drinking motives over time.</div

    Prefrontal response and frontostriatal functional connectivity to monetary reward in abstinent alcohol-dependent young adults

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    Although altered function in neural reward circuitry is widely proposed in models of addiction, more recent conceptual views have emphasized the role of disrupted response in prefrontal regions. Changes in regions such as the orbitofrontal cortex, medial prefrontal cortex, and dorsolateral prefrontal cortex are postulated to contribute to the compulsivity, impulsivity, and altered executive function that are central to addiction. In addition, few studies have examined function in these regions during young adulthood, when exposure is less chronic than in typical samples of alcohol-dependent adults. To address these issues, we examined neural response and functional connectivity during monetary reward in 24 adults with alcohol dependence and 24 psychiatrically healthy adults. Adults with alcohol dependence exhibited less response to the receipt of monetary reward in a set of prefrontal regions including the medial prefrontal cortex, lateral orbitofrontal cortex, and dorsolateral prefrontal cortex. Adults with alcohol dependence also exhibited greater negative correlation between function in each of these regions and that in the nucleus accumbens. Within the alcohol-dependent group, those with family history of alcohol dependence exhibited lower mPFC response, and those with more frequent drinking exhibited greater negative functional connectivity between the mPFC and the nucleus accumbens. These findings indicate that alcohol dependence is associated with less engagement of prefrontal cortical regions, suggesting weak or disrupted regulation of ventral striatal response. This pattern of prefrontal response and frontostriatal connectivity has consequences for the behavior patterns typical of addiction. Furthermore, brain-behavior findings indicate that the potential mechanisms of disruption in frontostriatal circuitry in alcohol dependence include family liability to alcohol use problems and more frequent use of alcohol. In all, these findings build on the extant literature on reward-circuit function in addiction and suggest mechanisms for disrupted function in alcohol dependence. Β© 2014 Forbes et al

    Abnormal Frontostriatal Activity During Unexpected Reward Receipt in Depression and Schizophrenia: Relationship to Anhedonia.

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    Alterations in reward processes may underlie motivational and anhedonic symptoms in depression and schizophrenia. However it remains unclear whether these alterations are disorder-specific or shared, and whether they clearly relate to symptom generation or not. We studied brain responses to unexpected rewards during a simulated slot-machine game in 24 patients with depression, 21 patients with schizophrenia, and 21 healthy controls using functional magnetic resonance imaging. We investigated relationships between brain activation, task-related motivation, and questionnaire rated anhedonia. There was reduced activation in the orbitofrontal cortex, ventral striatum, inferior temporal gyrus, and occipital cortex in both depression and schizophrenia in comparison with healthy participants during receipt of unexpected reward. In the medial prefrontal cortex both patient groups showed reduced activation, with activation significantly more abnormal in schizophrenia than depression. Anterior cingulate and medial frontal cortical activation predicted task-related motivation, which in turn predicted anhedonia severity in schizophrenia. Our findings provide evidence for overlapping hypofunction in ventral striatal and orbitofrontal regions in depression and schizophrenia during unexpected reward receipt, and for a relationship between unexpected reward processing in the medial prefrontal cortex and the generation of motivational states.Supported by a MRC Clinician Scientist award (G0701911), a Brain and Behaviour Research Foundation Young Investigator, and an Isaac Newton Trust award to Dr Murray; an award to Dr Segarra from the Secretary for Universities and Research of the Ministry of Economy and Knowledge of the Government of Catalonia and the European Union; by the University of Cambridge Behavioural and Clinical Neuroscience Institute, funded by a joint award from the Medical Research Council and Wellcome Trust (G1000183 and 093875/Z/10Z respectively); by awards from the Wellcome Trust (095692) and the Bernard Wolfe Health Neuroscience Fund to Professor Fletcher, and by awards from the Wellcome Trust Institutional Strategic Support Fund (097814/Z/11) and Cambridge NIHR Biomedical Research Centre. The authors are grateful for the help of clinical staff in CAMEO, in the Cambridge Rehabilitation and Recovery service and Pathways, and in the Cambridge IAPT service, for help with participant recruitment.This is the final version of the article. It first appeared from Nature Publishing Group via http://dx.doi.org/10.1038/npp.2015.37
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