Motion of “Wave-Piercing” Trimaran: Test Data and A Comparison With The Motion of The Other Vessels

2002 ◽  
Author(s):  
Victor Dubrovsky ◽  
Keyword(s):  
Test Data ◽  
The Other

A Dynamically Optimized Fluctuation Smoothing Rule for Scheduling Jobs in a Wafer Fabrication Factory

2011 ◽  
Vol 7 (4) ◽  
pp. 47-64 ◽  
Author(s):  
Toly Chen
Keyword(s):  
Standard Deviation ◽  
Test Data ◽  
Cycle Time ◽  
Performance Metrics ◽  
The Other ◽  
Wafer Fabrication ◽  
Fluctuation Smoothing ◽  
Time Standard ◽  
Nonlinear Fluctuation ◽  
Better Than

This paper presents a dynamically optimized fluctuation smoothing rule to improve the performance of scheduling jobs in a wafer fabrication factory. The rule has been modified from the four-factor bi-criteria nonlinear fluctuation smoothing (4f-biNFS) rule, by dynamically adjusting factors. Some properties of the dynamically optimized fluctuation smoothing rule were also discussed theoretically. In addition, production simulation was also applied to generate some test data for evaluating the effectiveness of the proposed methodology. According to the experimental results, the proposed methodology was better than some existing approaches to reduce the average cycle time and cycle time standard deviation. The results also showed that it was possible to improve the performance of one without sacrificing the other performance metrics.

POST-WEANING PERFORMANCE OF SPF PIGS REARED IN ISOLATION VS. LITTER MATES REARED WITH NON-SPF PIGS

1967 ◽  
Vol 47 (1) ◽  
pp. 1-9
Author(s):  
H. T. Fredeen ◽  
A. Reddon
Keyword(s):  
Test Data ◽  
Performance Testing ◽  
Live Weight ◽  
Health Problems ◽  
The Other ◽  
New Location

Thirty litters, comprising four pigs each, representing seven SPF herds were raised from weaning to 90 kg live weight at two locations, one a new piggery where the SPF pigs were isolated from other pigs and the other an old piggery shared with litters from non-SPF herds. Each SPF litter was represented at each location. At the conclusion of this test, data were obtained for 53 non-SPF litters tested at the two locations.The SPF pigs reared in isolation grew more rapidly and exhibited fewer health problems than those reared with non-SPF pigs. However, the differences between herds and among litters within herds were very large and in some cases the performance of pigs tested in isolation was inferior to that of their litter mates tested with non-SPF pigs. Further, the performance of non-SPF litters tested in the new location exceeded that of contemporaries tested in the old piggery by approximately the same margin as was observed in the SPF test. It was concluded that isolation from pigs of non-SPF origin was not a requisite for performance-testing of pigs from SPF herds.

Effect of Naphthalene Compounded Superplasticizer on Strength and Shrinkage of Ready-Mixed Concrete

2012 ◽  
Vol 174-177 ◽  
pp. 488-495
Author(s):  
Yu Fei Wang ◽  
Han Dong Yan
Keyword(s):  
Cement Paste ◽  
Test Data ◽  
Concrete Strength ◽  
Reducing Agent ◽  
The Other ◽  
General Rules ◽  
Early Strength ◽  
Ready Mixed Concrete ◽  
Mixed Concrete

Superplasticizer is widespread applied in the ready-mixed concrete in China. In the specific engineering, it is not only has the requirement of water-reducing ratio for superplasticizer, but also the superplasticizer has to meet the demand such as early-strength, air-entraining, retarding and so on. In current, the naphthalene compounded superplasticizer is conducted on the basis of the FDN modification. This paper selects two kinds of representative naphthalene compounded superplasticizers, one is the setretarder superplasticizer (WRA1), and the other one is the early strength-air entraining-retarding superplasticizer (WRA2). The effect of performance on neat cement paste, mortar and concrete which mixed with the two admixtures are compared with the benchmarks (not mixed with water reducing agent) and mixed with FDN. Through the analysis and comparison of the test data, the general rules of the naphthalene compounded superplasticizer to concrete strength and shrinkage are put forward in this paper. Also, according to those rules, it poses the concrete problems to be noted in the production. This may have guidance for reducing the early cracks of ready-mixed concrete.

Elastic-Plastic Fracture Mechanics Assessment of Test Data for Circumferential Cracked Pipes

2003 ◽  
Author(s):  
Nam-Su Huh ◽  
Do-Jun Shim ◽  
Yun-Jae Kim ◽  
Young-Jin Kim
Keyword(s):  
Test Data ◽  
Experimental Validation ◽  
Limit Load ◽  
Maximum Load ◽  
The Other ◽  
Surface Cracks ◽  
Plastic Limit ◽  
Load Range ◽  
Reference Stress ◽  
Plastic Limit Load

This paper presents experimental validation of two reference stress based methods for circumferential cracked pipes. One is the R6 method where the reference stress is defined by the plastic limit load. The other is the enhanced reference stress method, recently proposed by the authors, where the reference stress is defined by the optimized reference load. Using thirty-eight published pipe test data, the predicted maximum instability loads according to both methods are compared with the experimental ones for pipes with circumferential through-thickness cracks and with part circumferential surface cracks. It is found that the R6 method gives conservative estimates of the maximum loads for all cases. Ratios of the experimental maximum load to the predicted load range from 0.54 to 0.98. On the other hand, the proposed method gives overall closer maximum loads than R6, compared to the experimental data. However, for part through-thickness surface cracks, the estimated loads were slightly non-conservative for four cases, and possible reasons were fully discussed.

A Dynamically Optimized Fluctuation Smoothing Rule for Scheduling Jobs in a Wafer Fabrication Factory

2012 ◽  
pp. 265-284
Author(s):  
Toly Chen
Keyword(s):  
Standard Deviation ◽  
Test Data ◽  
Cycle Time ◽  
Performance Metrics ◽  
Experimental Results ◽  
The Other ◽  
Wafer Fabrication ◽  
Fluctuation Smoothing ◽  
Time Standard ◽  
Nonlinear Fluctuation

This paper presents a dynamically optimized fluctuation smoothing rule to improve the performance of scheduling jobs in a wafer fabrication factory. The rule has been modified from the four-factor bi-criteria nonlinear fluctuation smoothing (4f-biNFS) rule, by dynamically adjusting factors. Some properties of the dynamically optimized fluctuation smoothing rule were also discussed theoretically. In addition, production simulation was also applied to generate some test data for evaluating the effectiveness of the proposed methodology. According to the experimental results, the proposed methodology was better than some existing approaches to reduce the average cycle time and cycle time standard deviation. The results also showed that it was possible to improve the performance of one without sacrificing the other performance metrics.

Examination of CPT-Based Liquefaction Evaluation Methods for New Zealand Earthquake

2013 ◽  
Vol 477-478 ◽  
pp. 1105-1108
Author(s):  
Tong Zhi Chen ◽  
Xiao Ming Yuan
Keyword(s):  
New Zealand ◽  
Test Data ◽  
Historical Earthquakes ◽  
Evaluation Methods ◽  
Field Investigation ◽  
The Other ◽  
Success Rates ◽  
In Situ Test ◽  
First Time

On February 22, 2011 a MW6.2 earthquake struck Christchurch in New Zealand, which is the first time that liquefaction acts as the main cause of damage since there is survey record of historical earthquakes. On the basis of field investigation and in-situ test data, domestic and foreign liquefaction evaluation methods based on CPT including Chinese code, Robertson and Olsen methods are examined and their applicability and reliability are assessed. Analysis shows that the method adopted in Chinese code is more dangerous, whose success rates of liquefaction and non-liquefaction evaluation are 70% and 94%.The other two methods abroad are severely conservative, for the success rates of liquefaction and non-liquefaction evaluation of Robertson method are 100% and 40%, and Olsen method 100% and 11% respectively. Liquefaction evaluation methods need further research to be improved.

Influence of Different Thickness of Zirconia Core on the Flexural Strength of Bilayered Ceramics in Artificial Saliva

2014 ◽  
Vol 602-603 ◽  
pp. 606-609
Author(s):  
Yan Li Zhang ◽  
Ruo Yu Liu ◽  
Xiao Li Feng ◽  
Liang Jiao Chen ◽  
Yao Kun Zhang ◽  
...  
Keyword(s):  
Flexural Strength ◽  
Test Data ◽  
Artificial Saliva ◽  
Multiple Comparisons ◽  
The Other ◽  
Bending Test ◽  
Core Thickness ◽  
Different Thickness ◽  
One Way Anova ◽  
Made In

To study the effect of different core thickness on the flexural strength of zirconia and feldspathic ceramics. Bilayered zirconia-feldspathic samples of three commercial brands were made in three different thickness(n=10): 0.5 mm, 0.8 mm and 1.0 mm respectively. On zirconia core specimens of each thickness, feldspathic dentin porcelain was added to reach a total crown thickness of 2 mm. Samples were stored in artificial saliva with neutral pH for 10 days at 37°C. Flexural strength was conducted with 3-point bending test. Data were analyzed by one-way ANOVA, and multiple comparisons were performed using Student-Newman-Keuls test(α=0.05). The measurement of 1.0 mm group was higher than the other groups, and 0.5 mm group was the lowest(P＜0.05), regardless of any commercial brand. Commercial dental zirconia blocks had varied flexural strength, Zirkonzahn expressed highest value in any thickness group compared with the other materials. Moreover, the fracture mode of zirconia bilayered composites was different in this study, 0.5 mm and 0.8 mm groups exhibited higher number of fragments and appeared to delamination compared with 1.0 mm group. So we infer that the thickness of core can have an effect on the flexural strength of bilayered zirconia-feldspathic crown, as well as different kinds of materials.

scholarly journals Performing Pumping Test Data Analysis Applying Cooper-Jacob’s Method for Estimating of the Aquifer Parameters

2016 ◽  
Vol 12 (2) ◽  
pp. 9-20 ◽  
Author(s):  
Khider Mawlood Dana ◽  
Sabah Mustafa Jwan
Keyword(s):  
Test Data ◽  
Specific Capacity ◽  
Pumping Test ◽  
The Other ◽  
Well Test ◽  
Production Well ◽  
Observation Well ◽  
Aquifer Parameters ◽  
Aquifer Test ◽  
Single Well

Abstract Single well test is more common than aquifer test with having observation well, since the advantage of single well test is that the pumping test can be conducted on the production well with the absence of observation well. A kind of single well test, which is step-drawdown test used to determine the efficiency and specific capacity of the well, however in case of single well test it is possible to estimate Transmissivity, but the other parameter which is Storativity is overestimated, so the aim of this study is to analyze four pumping test data located in KAWRGOSK area by using cooper-Jacob’s (1946) time drawdown approximation of Theis method to estimate the aquifer parameters, also in order to determine the reasons which are affecting the reliability of the Storativity value and obtain the important aspect behind that in practice.

Influence of different Thickness of Zirconia Core on the Flexural Strength in Article Saliva

2013 ◽  
Vol 833 ◽  
pp. 173-176
Author(s):  
Guo Xi Yu ◽  
Le Wang ◽  
Zhang Fan
Keyword(s):  
Flexural Strength ◽  
Test Data ◽  
Artificial Saliva ◽  
Multiple Comparisons ◽  
The Other ◽  
Bending Test ◽  
Core Thickness ◽  
Different Thickness ◽  
One Way Anova ◽  
Made In

To Study the Effect of Different Core Thickness on the Flexural Strength of Zirconia and Feldspathic Ceramics. Bilayered Zirconia-Feldspathic Samples of Three Commercial Brands were Made in Three Different Thickness(n=10): 0.5 Mm, 0.8 Mm and 1.0 Mm Respectively. on Zirconia Core Specimens of each Thickness, Feldspathic Dentin Porcelain was Added to Reach a Total Crown Thickness of 2 Mm. Samples were Stored in Artificial Saliva with Neutral Ph for 10 Days at 37°C. Flexural Strength was Conducted with 3-Point Bending Test. Data were Analyzed by One-way ANOVA, and Multiple Comparisons were Performed Using Student-Newman-Keuls Test(α=0.05). the Measurement of 1.0 Mm Group was Higher than the other Groups, and 0.5 Mm Group was the Lowest(P＜0.05), Regardless of any Commercial Brand. Commercial Dental Zirconia Blocks had Varied Flexural Strength, Zirkonzahn Expressed Highest Value in any Thickness Group Compared with the other Materials. Moreover, the Fracture Mode of Zirconia Bilayered Composites was Different in this Study, 0.5 Mm and 0.8 Mm Groups Exhibited Higher Number of Fragments and Appeared to Delamination Compared with 1.0 Mm Group. so we Infer that the Thickness of Core can have an Effect on the Flexural Strength of Bilayered Zirconia-Feldspathic Crown, as well as Different Kinds of Materials.

The Compounding of Guayule Rubbers. Effect of Accelerator-Curing Agent Combinations

1944 ◽  
Vol 17 (1) ◽  
pp. 150-160
Author(s):  
Ross E. Morris ◽  
Robert R. James ◽  
Theodore A. Werkenthin
Keyword(s):  
Test Data ◽  
The Other ◽  
Curing Agent ◽  
Other Hand ◽  
Domestic Products

Abstract The accelerator-curing agent combinations in most cases have the same effect on the three guayule rubbers as they have on smoked sheet. No accelerator-curing agent combination produces smoked-sheet stocks or guayule stocks excelling in every property; each rubber must be specially compounded for the purpose in mind. The authors conclude from the test data reported above that stocks prepared from domestic deresinated guayule rubber do not show sufficient advantages over similar stocks prepared from domestic resiniferous guayule rubber to justify the extra expense involved in the preparation of the former rubber. On the other hand, stocks prepared from Mexican resiniferous guayule rubber are definitely of poorer quality than similar stocks prepared from the domestic products.

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