Using Eco-indicator 99 and a two-stage nested analysis of variance test to evaluate building mitigation measures under hazard risks

This research was conducted in Pante Cermin, Padang Tiji Subdistrict, Pidie District. in March to August 2015, with the aim to know the use efficienci of Trichoderma sp on the growth of several types of Banana seedlings (Musa Paracica L.) This research using Randomized Block Design (RAK) factorial pattern with the factors studied is the type of banana and trichoderma dose . Both factors consist of 4 levels: Banana Barangan (J1), Ambon banana (J2), Banana King (J3) and Geupok banana (J4). While the dose of Tricoderma sp is: TO = 0 g / seeds T1 = 15 g / seeds T2 = 30 g / seedlings and T3 = 45 g / seedlings. So there are 16 treatment combinations and repeated 3 times, which resulted in 48 experimental units.To determine the influence of each treatment and its interaction on the growth of banana seedlings, the analysis of variance (Test F) and continued with the test of Beda Nyata Jujur (BNJ) at 5% level.The results showed that the growth of good banana seedlings among 4 species studied was shown by Barangan bananas, but not unlike bananas. However, trichoderma administration until the age of 4 months has not shown the growth and intensity of different attacks. So it should be extended the study period to 6 months. After 6 months of research there has been a difference in growth and intensity of attack, where the intensity of the greatest attack is shown by T0 (without trichoderma). Medium intensity of smallest attack is shown by T3 (Dose trichoderma sp 45 gr / banana seedlings). The type of banana does not affect the growth and intensity of fusarium wilt attack. and the interaction of these two factors had no significant effect on the growth of banana seedlings and the intensity of Fusarium wilt disease.

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On the Bayes Character of a Standard Model II Analysis of Variance Test

The Annals of Mathematical Statistics ◽

10.1214/aoms/1177697616 ◽

1969 ◽

Vol 40 (3) ◽

pp. 1094-1097 ◽

Cited By ~ 1

Author(s):

R. H. Farrell

Keyword(s):

Standard Model ◽

Analysis Of Variance ◽

Variance Test

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Prevention of Historically Challenging Sustained Casing Pressure from Shallow Gas Through Re-Engineered Cement Design and Execution Methodology

10.2523/iptc-21429-ms ◽

2021 ◽

Author(s):

Farah Shakina Ezani ◽

Myat Thuzar ◽

Avinash Kishore Kumar ◽

Chee Hen Lau

Keyword(s):

Mitigation Measures ◽

Design Parameters ◽

Two Stage ◽

Shallow Gas ◽

Second Stage ◽

The Past ◽

Sustained Casing Pressure ◽

Dual Stage ◽

Casing Pressure ◽

Selection Of

Abstract Sustained casing pressure (SCP) is a very costly event for any operator either at production phase or at the end of a well’s lifecycle. SCP is a result of incomplete hydraulic isolation across hydrocarbon bearing zone. In one of the gas fields in Malaysia, notoriously known for shallow gas hazard, drilled development wells which have reportedly been suffering SCP. In the past, various improvements in cement slurry design and placement methods were deployed in order to provide complete zonal isolation, especially at the shallow gas sand, yet SCP issue was encountered occasionally. In the current development campaign, different strategy to providing annulus sealing was adopted. This paper discusses proactive steps taken in the slurry design, fit together with the dual stage cementing approach, as a primary means of placing cement above the shallow hazard interval. During the design phase, essential key parameters that would lead to successful placement of cement in the annulus as well as unique slurry design that suits for two stage cementing methods were studied. Risk involved in first stage cementing is one of the most important steps that should be analyzed in detail and put mitigation measures in place to ensure the second stage cement job can be performed as planned. In addition to the slurry properties, such as fluid-loss value, gas-tightness, etc., thickening time and top of cement (TOC) of the lead slurry in the first stage cement job has become enormously critical in designing dual stage cementing job in order to assure cement ports in the stage collar are not covered with hard cement forcing the termination of second stage job prematurely. Besides cementing design, careful selection of the stage collar location and casing annulus packer in the string is also of significant importance in leading to successful two stage cement job. Two development wells with above approached has been delivered and no sustained casing pressure has been experienced. This proactive approach to use two stage cementing as primary plan has proven to successfully eliminate the risk of SCP, which was a frequent struggle in their sister wells drilled with primary cementing in the past in the same field. The risk analysis combined with careful considerations of critical cementing design parameters and selection of stage tool location have become a novel approach to combat against SCP in this gas field.

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On the Analysis of Variance Test in Multivariate Variance Components Model

Calcutta Statistical Association Bulletin ◽

10.1177/0008068319680201 ◽

1968 ◽

Vol 17 (2-3) ◽

pp. 57-78 ◽

Cited By ~ 1

Author(s):

Sukhabanjan Chakravobti

Keyword(s):

Analysis Of Variance ◽

Variance Components ◽

Variance Test

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MEASUREMENT OF HEPARIN IN PLASMA: INFLUENCE OF INTER-SUBJECT AND CIRCADIAN VARIABILITY IN HEPARIN SENSITIVITY ACCORDING TO METHOD

10.1055/s-0038-1644165 ◽

1987 ◽

Author(s):

M F Scully ◽

H A Decousus ◽

V Ellis ◽

P Girard ◽

C Parker ◽

...

Keyword(s):

Analysis Of Variance ◽

Patient Group ◽

Geriatric Patients ◽

Factor Xa ◽

Hospitalized Patients ◽

Apparent Difference ◽

Thrombin Time ◽

Two Stage ◽

Low Responders ◽

Hospitalized Geriatric Patients

Heparin was measured, with respect to standard curves prepared with normal pooled plasma, by five methods, APTT, (Auto-APTT), thrombin time (Thromboquik), one (Heptest) and two-stage (Hepaclot) coagulation, anti-factor Xa and chromogenic anti-factor Xa after addition at three concentrations (0.2, 0.4, 0.6iu/ml) to plasma prepared from three groups of ten individuals: normal young volunteers, hospitalized patients with malignancy and hospitalized geriatric patients. By the APTT and TT, differences in sensitivity were observed, for example, at 0.4iu heparin/ml corresponding to an apparent difference in heparin level of 10- and 14-fold between high and low responding individuals. All low responders, by APTT and TT, were in the older hospitalized group, tending to overheparinization when monitoring by these methods. Such large differences were not apparent by any of the anti-factor Xa assays. A circadian difference (1.9 and 1.8 fold) in sensitivity was also observed in the patient group such that in samples taken at night (12 pm), heparin levels were 30-50% higher than those taken during the morning on average when measured in the APTT and TT (p,0.001, analysis of variance). Again, such large differences were notapparent by anti-factor Xa methods. In light of recent findings about the usefulness of anti-factor Xa methods for efficient monitoring of heparin, it issuggested that this conclusion may arise from the tendency for anti-factor Xa methods to determine actual concentrations of heparin.

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