نتایج جستجو برای: 685 769ق

تعداد نتایج: 1838  

Journal: :The Science of the total environment 2008
P K Entcheva Campbell E M Middleton L A Corp M S Kim

Current strategies for monitoring the physiologic status of terrestrial vegetation rely on remote sensing reflectance data, which provide estimates of vigor based primarily on chlorophyll content. Chlorophyll fluorescence (ChlF) measurements offer a non-destructive alternative and a more direct approach for diagnosis of vegetation stress before a significant reduction in chlorophyll content has...

Journal: :Journal of Security and Sustainability Issues 2023

The study attempts to forecast the total costs of a company in Poland. first stage research was analyzing and evaluating time series costs. It detected: trends, seasonality random factor. This became premise for application two methods forecasting: Holt-Winters’ multiplicative additive. shows that model proved be better forecasting subject. forecasted from July December 2022 will reach PLN 45 3...

Journal: : 2023

This study aims to reveal the relationship between burnout levels, attitudes toward teaching profession, and motivation teach in prospective physical education sports teaching. Accordingly, mediating role of levels profession teachers was investigated. The data were collected online from 685 who studied field 12 state universities Turkey. by using “Burnout,” Attitudes Teaching Profession,” “Mot...

1999
C. Schwob L. Jozefowski B. de Beauvoir F. Biraben A. Clairon

We have performed a pure optical frequency measurement of the 2S-12D two-photon transitions in atomic hydrogen and deuterium. From a complete analysis taking into account this result and all other precise measurements (by ourselves and other authors), we deduce optimized values for the Rydberg constant, R` ­ 109 737.315 685 16s84d cm21 (relative uncertainty of 7.7 3 10212) and for the 1S and 2S...

2001
Benita M. Beamon WA Victoria C.P. Chen

This research is concerned with the performance behavior of conjoined supply chains, which typically arise in web-based retail. In particular, five performance measures, belonging to three performance measure classes, are used to study the performance effects of various operational factors on conjoined supply chains. The study is accomplished via experimental design and simulation analysis, and...

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