3,114 research outputs found
Impact of Managed-Lane Pricing Strategies on Vehicle-Sourced NOx and HC Emissions
No full textGround-level ozone is a secondary air pollutant that is formed by chemical reactions between precursors, including nitrogen oxides (NOx) and hydrocarbon (HC). Highway traffic, which can be controlled by traffic operational strategies, is one of the main sources of atmospheric NOx and HC. Managed-lane pricing is one of the popularly used freeway traffic management approaches, while its impacts on ground-level ozone-related vehicle emissions is, however, still unclear. This motivated the purpose of this research. A case study in Houston, USA indicates that, vehicles on managed lanes had fewer hard accelerations/decelerations and higher average speed, which resulted in higher per-vehicle emissions in grams/hour, while the total emissions of a vehicle were roughly comparable to what they would be on a general-purpose lane. Total daily NOx and HC emissions per managed lane were 31.9%–42.6% of those per general-purpose lane. The weight ratios between HC and NOx show that, the ground-level ozone formation of this area is hydrocarbon-limited
Observation of hc radiative decay hc › ??' and evidence for hc › ??
No full textKolcu, Onur Buğra (Arel Author) --- Makale 69 yazarlıdır.A search for radiative decays of the P-wave spin singlet charmonium resonance hc is performed based on 4.48 × 108 ? events collected with the BESIII detector operating at the BEPCII storage ring. Events of the reaction channels hc › ??' and ?? are observed with a statistical significance of 8.4? and 4.0?, respectively, for the first time. The branching fractions of hc › ??' and hc › ?? are measured to be B(hc › ??' ) = (1.52±0.27±0.29)×10-3 and B(hc › ??) = (4.7±1.5±1.4)×10-4 , respectively, where the first errors are statistical and the second are systematic uncertainties
The BH2 monoclonal antibody recognizes the misfolded HLA-B27 HC (A) Trx-truncated HLA-B27 HC and truncated HLA-B27 HC were resolved by SDS-PAGE (12%) and stained with Coomassie Brilliant Blue.
No full text<p>Lane 1: Molecular weight markers. Lane 2: 2 μg of Trx-truncated HLA-B27 HC. Lane 3: 2 μg of truncated HLA-B27 HC. (B) BH2 recognizes the monomeric and oligomeric forms of HLA-B27 HC. The membrane proteins from C1R-B2704 cells were extracted, resolved by non-reducing SDS-PAGE (10%), and analyzed by western blot using the BH2 monoclonal antibody (1:1000 dilution). Lane 1: 50 μg of membrane protein extracted from HMy2.C1R cells. Lane 2: 50 μg of membrane protein extracted from C1R-B2704 cells. (C) The BiP (Grp 78)/misfolded HLA-B27 HC complex can be immunoprecipitated by BH2. Cell lysate (50 μg) and the immunoprecipitated product from cell lysate by BH2 were analyzed by western blotting and probed for BiP/Grp 78 or HLA-B27 HC (recognized by BH2). (D) The HLA-B27 immunoprecipitated by W6/32 does not bind to BiP/Grp 78. Cell lysate (50 μg) and the immunoprecipitated products from cell lysate by W6/32 were analyzed by western blotting and probed for BiP/Grp 78 or HLA-B27 HC. </p
Additional file 2: Figure S1. of Characterization and function analysis of a novel gene, Hc-maoc-1, in the parasitic nematode Haemonochus contortus
No full texta Hc-maoc-1-pET30a transformed Into E. coli (BL21) and induced in 37 °C in different temperature. Lane M: Marker; Lane 1: 0 h; Lane 2: 2 h; 3: 4 h; Lane 4: 6 h; Lane 5: 8 h; Lane C: Control (pET30a empty). b Western blot (recombine protein recognized by goat-anti-mouse His Tag antibody). Lane M: Marker; Lane 1: Hc-MAOC-1 purified protein with His Tag. (PDF 427 kb
Additional file 1 of Hc-hrg-2, a glutathione transferase gene, regulates heme homeostasis in the blood-feeding parasitic nematode Haemonchus contortus
No full textAdditional file 1: Figure S1. a pET32a-Hc-hrg-2 transformed into E. coli (BL21) and induced in 37 °C in different temperature. Lane M: marker; Lane 1: 0 h; Lane 2: 2 h; Lane 3: 4 h; Lane 4: 6 h; Lane 5: 8 h; Lane C: control (pET32a empty). b The recombinant protein Hc-HRG-2 was purified by Ni-NTA agarose column. Lane M: marker; Lanes 1–2: 60 mM imidazole-eluted protein; Lanes 3–11: 250 mM imidazole-eluted protein. Arrows indicate the target bands of rHc-HRG-2
Financial Exchange Rates and International Currency Exposures
No full textOur goal in this project is to gain a better empirical understanding of the international financial implications of currency movements. To this end, we construct a database of international currency exposures for a large panel of countries over 1990-2004. We show that trade-weighted exchange rate indices are insufficient to understand the financial impact of currency movements. Further, we demonstrate that many developing countries hold short foreign-currency positions, leaving them open to negative valuation effects when the domestic currency depreciates. However, we also show that many of these countries have substantially reduced their foreign currency exposure over the last decade. Last, we show that our currency measure has high explanatory power for the valuation term in net foreign asset dynamics: exchange rate valuation shocks are sizable, not quickly reversed and may entail substantial wealth shocks.
Vision-based fusion of robust lane tracking and forward vehicle detection in a real driving environment
No full textWith the goal of developing an accurate and fast lane tracking system for the purpose of driver assistance, this paper proposes a vision-based fusion technique for lane tracking and forward vehicle detection to handle challenging conditions, i.e., lane occlusion by a forward vehicle, lane change, varying illumination, road traffic signs, and pitch motion, all of which often occur in real driving environments. First, our algorithm uses random sample consensus (RANSAC) and Kalman filtering to calculate the lane equation from the lane candidates found by template matching. Simple template matching and a combination of RANSAC and Kalman filtering makes calculating the lane equation as a hyperbola pair very quick and robust against varying illumination and discontinuities in the lane. Second, our algorithm uses a state transfer technique to maintain lane tracking continuously in spite of the lane changing situation. This reduces the computational time when dealing with the lane change because lane detection, which takes much more time than lane tracking, is not necessary with this algorithm. Third, false lane candidates from occlusions by frontal vehicles are eliminated using accurate regions of the forward vehicles from our improved forward vehicle detector. Fourth, our proposed method achieved robustness against road traffic signs and pitch motion using the adaptive region of interest and a constraint on the position of the vanishing point. Our algorithm was tested with image sequences from a real driving situation and demonstrated its robustness.X112126sciescopuskc
Women in the regional economy : the East Midlands, 1700-1830
No full textThis study explores the processes of economic change and their impact on women's
working lives in the East Midlands region during the eighteenth and early nineteenth
centuries. Drawing on a wide range of sources, for example, estate, probate, criminal
and poor law records, it offers alternative perspectives on the position of women in the
economy.
The first part of the thesis looks at the wealth creating and income generating activities of
'middling' women living in urban areas. Inheritance strategies delineated in men's and
women's wills do not indicate that women from the beginning of the eighteenth century
became less able to hold property or engage in enterprise. Industrial development in this
region encouraged women's economic participation and created additional opportunities
for those situated in industrial towns to extend their interests. The value of estate
records for the investigation of women's businesses is also discussed, and it is concluded
that while they have their limitations, these records can provide valuable insights into
women's commercial dealings.
Part two is concerned with the effects of regional specialisation on the work of labouring
women. There is very little evidence to suggest a shift in the sexual division of labour in
agriculture from the mid-eighteenth century. The types of tasks in which women were
engaged were generally no different in the early nineteenth century than they had been at
the beginning of the eighteenth. The continued move to pastoral farming reduced the
amount of agricultural work for women, especially for those in Leicestershire. The initial
expansion of dairying while giving rise to more dairymaids can be seen as promoting
growth in the domestic service sector rather than agriculture, since these occupations are
so very closely linked. The majority of women appear to have been engaged in domestic
service work prior to the eighteenth century, and limited work opportunities for women
helps explain the emergence of redundant female labour prior to 1700. It is also argued
that the expansion of domestic industry and a reduction in age at first marriage for
women in the early eighteenth century noted by historians was largely a phenomenon
generated by these conditions.
This study also includes the trends in wage rates for women over the period, it shows
that female real wages declined in comparison with those of males. The evidence
presented also supports the belief that women were paid a customary wage. However,
under certain circumstances some women could command wages comparable with those
of men. Finally, it is argued that the intensification of the trends described, in addition to
the inability of women to move between sectors of employment, led many women to
employ survival mechanisms that included the greater exploitation of 'criminal' activities
within the informal economy and their sexual relationships with men
Financial Exchange Rates and International Currency Exposures
No full textOur goal in this project is to gain a better empirical understanding of the international financial implications of currency movements. To this end, we construct a database of international currency exposures for a large panel of countries over 1990-2004. We show that trade-weighted exchange rate indices are insufficient to understand the financial impact of currency movements. Further, we demonstrate that many developing countries hold short foreign-currency positions, leaving them open to negative valuation effects when the domestic currency depreciates. However, we also show that many of these countries have substantially reduced their foreign currency exposure over the last decade. Last, we show that our currency measure has high explanatory power for the valuation term in net foreign asset dynamics: exchange rate valuation shocks are sizable, not quickly reversed and may entail substantial wealth shocks.Financial integration, capital flows, external assets and liabilities
Financial analysis and evaluation of company HC Betons Ltd
No full textDiplomdarba nosaukums: Uzņēmuma SIA HC Betons finanšu analīze un novērtējums
Diplomdarba mērķis ir uz finanšu analīzes pamata izvērtēt uzņēmuma SIA HC Betons esošo finansiālo situāciju un izstrādāt priekšlikumus finansiālā stāvokļa uzlabošanai.
Teorētiskajā daļā apskatīti finanšu analīzes teorētiskie aspekti. Praktiskajā daļā autore veica uzņēmuma SIA HC Betons finanšu analīzi par 2009., 2010., un 2011.gadu. Analītiskajā daļā autore salīdzina rādītājus ar konkurējošo uzņēmumu SIA Cemex.
Autore secinājusi, ka uzņēmumam ir finansiālas grūtības, bet pēc autores domām, uzņēmums tuvāko gadu laikā nebankrotēs.
Diplomdarba apjoms ir 78 lapaspuses, tas sastāv no 3 daļām, 12 tabulām, 5 attēliem un 12 pielikumiem.
Atslēgvārdi: analīze, likviditāte, bankrots, koeficienti.Diploma thesis: Financial Analysis and Evaluation of Company HC Betons Ltd.
The aim of the diploma paper is to evaluate company’s HC Betons Ltd current financial situation based on financial analysis and make suggestions for improvement of the financial position.
Theoretical aspects of financial analysis are discussed in the theoretical part of the paper. In the practical part author has performed company’s HC Betons Ltd financial analysis of the years 2009, 2010 and 2011. In the analytical part author compares ratios of a competing company Cemex Ltd.
The author concludes that the company is in financial difficulties, but according to the author’s thoughts, the company will not bankrupt in the coming years.
The volume of the diploma paper is 78 pages; it consists of 3 parts, 12 tables, 5 images and 12 appendices.
Keywords: analysis, liquidity, bankruptcy, ratios
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