Optimum volume for a wash portion

1941 ◽  
Vol 18 (7) ◽  
pp. 341
Author(s):  
Louis Waldbauer ◽  
W. P. Cortelyou
Keyword(s):  
Author(s):  
Siavash Shojaat ◽  
Justin Geistefeldt ◽  
Brian Wolshon

Conventional methods to assess the quality of service on freeways are based on the comparison of a specific peak hour traffic demand to the capacity of the facility, which is usually measured at a single uniform bottleneck section. However, estimating the quality of service of one bottleneck section may not be sufficient to assess the performance of an entire freeway facility. A driver traveling along a freeway corridor may actually encounter multiple flow breakdowns at independent bottleneck sections, which affect the overall quality of service. This paper introduces a comprehensive approach that considers an entire freeway corridor as a system consisting of successive independent bottlenecks with different characteristics, and can be used to estimate the optimum sustainable volume. The methodology is based on the sustained flow index, which is defined as the product of traffic volume and the probability of survival at this volume. Optimum volumes of two real-world corridors are estimated based on the new derivations. The empirical results reveal that the optimum volume and the capacity of an entire corridor is less than those of its most restrictive bottleneck.


2011 ◽  
Vol 6 (3) ◽  
pp. 1934578X1100600
Author(s):  
Cecilia Socolsky ◽  
Susana Borkosky ◽  
Alicia Bardón

The molluscicidal activity of 12 phloroglucinol derivatives previously isolated from Elaphoglossum piloselloides, E. gayanum, E. yungense, and E. lindbergii, as well as 3 known acylphloroglucinols, now reported from an Argentine collection of Dryopteris wallichiana, was evaluated against the schistosomiasis vector snail Biomphalaria peregrina. Molluscicidal effects were analyzed and compared with those previously observed for 4 acylphloroglucinols from E. piloselloides and their corresponding peracetylated derivatives, in order to draw structure-activity relationships. The most active compounds were the prenylated desaspidins elaphogayanin B and elaphopilosins A and B (LD50 = 1.90, 2.90, and 0.94 ppm, respectively), together with the only evaluated prenylated para-aspidin, elaphopilosin C (LD50 = 2.15 ppm). Quantitative structure-activity relationships (QSAR) were studied by means of a semiempirical method (PM3) for the 24 natural phloroglucinol derivatives included in this paper. The descriptor molecular volume was found to have good correlation with the observed molluscicidal activity (r2 = 0.77). The derived equation can be considered useful to predict the molluscicidal activity of bi and tricyclic acylphloroglucinols. The QSAR analysis showed that there is an optimum volume for high activity, probably related to the size of a receptor's active site. Bigger molecules display lower activity.


10.12737/7813 ◽  
2015 ◽  
Vol 3 (1) ◽  
pp. 51-56
Author(s):  
Аверина ◽  
Tatyana Averina

Logical and convenient methods of economic theory often remain unclaimed in the area of management accounting and analysis. For example an obstacle to the use of marginal revenue and marginal cost comparison method may be difficulties associated with the assembly of these indicators’ equations. This paper contains an example of using regression analysis for separation the cost related to constant and variable components, for assembly of marginal data equations in order to determine the optimum volume of output.


2008 ◽  
Vol 569 ◽  
pp. 121-124 ◽  
Author(s):  
Joo Hyoung Choi ◽  
Jin Rae Cho

In this paper, an efficient optimum material design technique is introduced for hybrid designing of dual-phase heat-resisting functionally graded composites. The graded region is divided into a finite number of homogeneous material layers in order to reduce the total design variables. The discrete optimum volume fractions are sought by making use of the interior penalty method and the finite difference sensitivity scheme. A linear interpolation technique is adopted to make the final optimum volume fraction distribution be continuous. The validity of the proposed optimization technique is examined through the illustrative numerical experiment.


2019 ◽  
Vol 8 (4) ◽  
pp. 11539-11545

The paper proposes a model for inventory management and specifically for determining the optimum volume and timing of deliveries, encompassing the uncertainty of demand. The criteria of efficiency are the minimisation of integral costs and maximisation of profit with due regard for the risks of penalties and customer attrition. The triangular distribution is a reference for the distribution pattern of the stochastic demand and delivery timing fluctuations as it is one of the most common choices in case of insufficient statistical data


ALCHEMY ◽  
2016 ◽  
Vol 5 (2) ◽  
pp. 38 ◽  
Author(s):  
Silvi Avianti Indriana ◽  
Akhmad Sabarudin ◽  
Hermin Sulistyarti

<p>Metode <em>sequential injection analysis-gas diffusion </em>(SIA-GD) dengan kolorimeter RGB (<em>red, green, blue</em>) yang sederhana dan cepat telah berhasil dikembangkan untuk penentuan tiosianat. Metode ini didasarkan pada proses oksidasi tiosianat menjadi sianida dalam suasana asam yang selanjutnya bereaksi dengan ninhidrin membentuk hidrindantin yang diukur pada kisaran panjang gelombang 455-492 nm (<em>blue</em>). Waktu <em>stop flow </em>optimum, volume sampel, konsentrasi ninhidrin dan konsentrasi asam secara berurutan sebesar 15 detik, 125 µL, 0,008%, dan 0,1 M. Oksidator optimum yang digunakan adalah Ce(IV) dengan konsentrasi 0,01 M. Kisaran konsentrasi linier 5-45 mg/L. Metode ini tidak diganggu oleh Cl­ˉ hingga konsentrasi 40 mg/L dan HCO<sub>3</sub>ˉ<sup>  </sup>hingga konsentrasi 20 mg/L. Metode yang dikembangkan ini memiliki presisi dan akurasi yang sebanding dengan metode standar.</p>


2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Da Liu ◽  
Xiao-jun Zhang ◽  
Dong-fa Liao ◽  
Jiang-jun Zhou ◽  
Zhi-qiang Li ◽  
...  

This study was designed to compare screw stabilities augmented with different volumes of PMMA and analyze relationship between screw stability and volume of PMMA and optimum volume of PMMA in different bone condition. Osteoporotic and severely osteoporotic synthetic bone blocks were divided into groups A0-A5 and B0-B5, respectively. Different volumes of PMMA were injected in groups A0 to A5 and B0 to B5. Axial pullout tests were performed andFmaxwas measured.Fmaxin groups A1-A5 were all significantly higher than group A0. Except between groups A1 and A2, A3 and A4, and A4 and A5, there were significant differences onFmaxbetween any other two groups.Fmaxin groups B1-B5 were all significantly higher than group B0. Except between groups B1 and B2, B2 and B3, and B4 and B5, there were significant differences onFmaxbetween any other two groups. There was significantly positive correlation betweenFmaxand volume of PMMA in osteoporotic and severely osteoporotic blocks. PMMA can significantly enhance pedicle screw stability in osteoporosis and severe osteoporosis. There were positive correlations between screw stability and volume of PMMA. In this study, injection of 3 mL and 4 mL PMMA was preferred in osteoporotic and severely osteoporotic blocks, respectively.


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