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71.
Core self‐evaluations in Japan: relative effects on job satisfaction,life satisfaction,and happiness
Ronald F. Piccolo Timothy A. Judge Koji Takahashi Naotaka Watanabe Edwin A. Locke 《组织行为杂志》2005,26(8):965-984
The present study tested, in a non‐Western culture (Japan), the relative validity in predicting job satisfaction, life satisfaction, and happiness of core self‐evaluations (CSE), positive and negative affectivity (PA/NA), and the Neutral Objects Satisfaction Questionnaire (NOSQ). Consistent with previous results in primarily Western cultures, the four lower‐order traits that comprise CSE—self‐esteem, generalized self‐efficacy, locus of control, and neuroticism—indicated a higher‐order factor. While each lower‐order trait was itself related to the study's criteria, the CSE concept displayed in general, higher correlations with the dependent variables, and explained incremental variance in two of the study's three outcomes beyond PA, NA, and the NOSQ. These results indicate initial support for the generalizability of CSE in a culture that differs in many respects from Western cultures, and suggest that judgments of satisfaction and happiness in a non‐Western culture have a dispositional source. Copyright © 2005 John Wiley & Sons, Ltd. 相似文献
72.
Chris X. Rao Edwin P Maurer 《Journal of the American Water Resources Association》1996,32(6):1139-1146
ABSTRACT: A simplified approach for modeling transmission losses in a stream is presented. A theory relating seepage from a channel with the depth of flow is simplified to a one-parameter relationship. A power relationship is then utilized for the stage-discharge relationship, which is coupled with the seepage relationship. This combined equation is integrated over the channel reach to arrive at a general model for seepage loss through the reach, with one parameter needing calibration. An example is provided showing the development of the relationship and the calibration technique for the parameter. The results are shown, emphasizing the use of the model for simulation of channel transmission losses at low and moderate flow conditions. 相似文献
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74.
Christopher D. Klingshirn Zachary J. West Matthew J. DeWitt Ashil Higgins John Graham Edwin Corporan 《Journal of the Air & Waste Management Association (1995)》2019,69(8):1003-1013
The use of a two-step thermal-oxidative analysis (TOA) technique for quantification of the mass of total carbon (TC) and elemental carbon (EC) of turbine engine-borne particulate matter (PM) has been evaluated. This approach could be used in lieu of analysis methods which were developed to characterize diluted PM. This effort is of particular interest as turbine engine PM emissions typically have a higher EC content than ambient aerosols, and filter sample mass loadings can be significantly greater than recommended for existing analysis techniques. Analyses were performed under a pure oxygen environment using a two-step temperature profile; reference carbon and actual PM samples were used to identify appropriate analysis conditions. Thermal gravimetric analysis (TGA) methods were used to provide guidance on the nature of the carbon in several of the materials. This was necessary as a standard reference material does not exist for determination of the EC fraction in PM. The TGA also assisted in identifying an appropriate temperature range for the first-stage of the TOA method. Quantification of TC and EC for turbine engine PM samples using TOA was compared to results obtained using the NIOSH 5040 thermal-optical method. For first-stage TOA temperatures of 350°C and 400°C, excellent agreement between the techniques was observed in both the quantified TC and EC, supporting the viability for using TOA for analysis of turbine engine PM samples. A primary benefit of using TOA for these types of PM samples is that filters with relatively high PM mass loadings (sampled at the emission source) can be readily analyzed. In addition, an entire filter sample can be evaluated, as compared to the use of a filter punch sample for the NIOSH technique. While the feasibility of using a TOA method for engine PM samples has been demonstrated, future studies to estimate potential OC charring and oxidation of EC-type material may provide additional data to assess its impact on the OC/EC fractions for other carbon-type measurements.
Implications: This work presents results and procedures of an analytical method for the determination of total and elemental carbon, i.e., TC and EC present in combustion source particulate matter samples. In general, it is shown that the LECO TOA methodology is as reliable and comprehensive as NIOSH 5040 for determining TC and EC carbon types in particulate matter present in turbine emission sources, and should be considered as an alternative. Principles of the methodology, differences, and corresponding agreement with the standard NIOSH 5040 method and TGA analysis are discussed. 相似文献
75.
Regional climate change projections for the Northeast USA 总被引:1,自引:0,他引:1
Katharine Hayhoe Cameron Wake Bruce Anderson Xin-Zhong Liang Edwin Maurer Jinhong Zhu James Bradbury Art DeGaetano Anne Marie Stoner Donald Wuebbles 《Mitigation and Adaptation Strategies for Global Change》2008,13(5-6):425-436
Climate projections at relevant temporal and spatial scales are essential to assess potential future climate change impacts on climatologically diverse regions such as the northeast United States. Here, we show how both statistical and dynamical downscaling methods applied to relatively coarse-scale atmosphere-ocean general circulation model output are able to improve simulation of spatial and temporal variability in temperature and precipitation across the region. We then develop high-resolution projections of future climate change across the northeast USA, using IPCC SRES emission scenarios combined with these downscaling methods. The projections show increases in temperature that are larger at higher latitudes and inland, as well as the potential for changing precipitation patterns, particularly along the coast. While the absolute magnitude of change expected over the coming century depends on the sensitivity of the climate system to human forcing, significantly higher increases in temperature and in winter precipitation are expected under a higher as compared to lower scenario of future emissions from human activities. 相似文献
76.
R David Holbrook Matthew J Higgins Sudhir N Murthy Anabela D Fonseca Edwin J Fleischer Glen T Daigger Thomas J Grizzard Nancy G Love John T Novak 《Water environment research》2004,76(7):2699-2702
The effect of aluminum sulfate (alum) addition on membrane performance was investigated, with a particular focus on membrane fouling. During initial operation, alum was added and the performance monitored. After terminating alum addition, the transmembrane pressure (TMP), which is indicative of membrane resistance to flow or fouling, increased. Accompanying the increase in TMP was an increase in the organic nonsettleable fraction (colloidal + dissolved) content of the mixed liquor and deterioration of permeate quality and floc strength. Permeate polysaccharide concentrations increased significantly, suggesting a preferential binding of solution polysaccharides by alum. Upon reinitiating alum addition, the TMP only partially recovered, indicating some irreversible fouling, while mixed liquor nonsettleable organic material, permeate quality, and floc strength returned to initial levels. These results suggest that direct alum addition to membrane bioreactors can improve membrane performance by reducing the organic fouling material and improving floc structure and strength. It appears that bulk liquid polysaccharides may contribute to irreversible membrane fouling, and this fraction can be efficiently controlled through the alum addition. 相似文献
77.
Active sediment caps are being considered for addressing contaminated sediment areas in surface‐water bodies. A demonstration of an active cap designed to reduce advective transport of contaminants using AquaBlok® (active cap material) was initiated in a small study area of the Anacostia River in Washington, D.C. The cap remained physically stable, demonstrated the ability to divert groundwater flow, and was recolonized with native organisms after 30 months of monitoring following cap placement. However, the long‐term performance of active caps associated with harsh environmental conditions, hydrogeological settings, and subsurface gas production needs to be further evaluated. © 2008 Wiley Periodicals, Inc. 相似文献
78.
79.
Robert V. Chiarenzelli Edwin L. Joba 《Journal of the Air & Waste Management Association (1995)》2013,63(3):123-124
A long-term field and laboratory program designed to determine and understand the effects of air pollutants on the performance of electric contact materials has reached the one-year mark. An extensive variety of metals has been exposed at six field environments, for periods up to one year (August 1963 to August 1964). These environments were selected to provide a wide range of air pollutants in typical data processing or process control situations. The program undertakes to determine material degradation as a function of time and environment. The important air pollutants at the field sites are measured regularly, and materials are returned periodically to the laboratory for evaluation using techniques developed specifically for this program. The results of the program to date are presented, and preliminary correlations are drawn. 相似文献
80.
Prataviera Fábio Loibel Selene M. C. Grego Kathleen F. Ortega Edwin M. M. Cordeiro Gauss M. 《Environmental and Ecological Statistics》2020,27(3):467-489
Environmental and Ecological Statistics - We propose a new extended regression model based on the logarithm of the generalized odd log-logistic Weibull distribution with four systematic components... 相似文献