Study on ISI Examination Period for Reactor Upper Head J-Welds with the Application of Onlay Welding

2020 ◽  
Vol 40 (4) ◽  
pp. 292-297
Author(s):  
Hye-Young Shin
Keyword(s):  
1999 ◽  
Vol 39 (4) ◽  
pp. 163-168 ◽  
Author(s):  
K. Seggelke ◽  
F. Obenaus ◽  
K.-H. Rosenwinkel

For this report, an existing biofilm model was examined in regard to its suitability for the simulation of full scale trickling filter for nitrification. The system was calibrated using the results ascertained in a measuring campaign under dry weather conditions. The verification was done using the results of a second examination period which included spells of stormwater input. It was possible for all periods to satisfactorily illustrate the degradation performance of the simulated trickling filters in regard to dynamics and quantity.


2011 ◽  
Vol 27 (4) ◽  
pp. 1659-1666 ◽  
Author(s):  
N. Nikolova ◽  
D. Kocevski ◽  
A. Kuzelov

This research was conducted with aim to establish genotype influence on eggshell strength of fertilized eggs and its hatchability at parents stock flock of laying type. Eggs from parent?s flock of lines ISA Brown and DeKalb White at age of 36-60 weeks were examined. Experiment lasted 6 months, and once a month were examined samples of 30 fertilized eggs. Results have shown significant differences (P ? 0.05) in eggshell strength related to genotype influence. Eggs with brown eggshell from line ISA Brown (P ? 0.05) had significantly more strength eggshell compared to eggs with white eggshells from line DeKalb White. Results from the analyses of breeding eggs hatchability, examined in the mentioned period have shown that this variable was mainly influenced by age, then by genotype. Eggs of older birds were lower hatchability compared to fertilized eggs produced of younger parent stock flock during the examination period.


2021 ◽  
Vol 58 (1) ◽  
pp. 4604-4612
Author(s):  
Mooad Imad Al-Shalout, Mohammed Rasmi, Mohammad A. Hassan

Electronic exam's' non-reliability is one of the most critical gaps in this type of exam, whereas any electronic exam is considered entirely unreliable. In addition to that, it is not protected and free from cheat. The continuous validation that the examinee is the one who solves the questions of the electronic exam permanently and continuously is the most crucial goal of this research. Many methods and procedures will be discussed, which will protect the validity of this type of exam. For example, one of these methods matches the student's fingerprint and takes random snapshots while taking the electronic exam in more than one format. In this research, it's proposed to use student handwriting during the electronic exams to built the value of validity. This way is considered one of the rare methods in the electronic exam. The research also tackles the process of reality for electronic exams through a fingerprint during the examination period. It takes random snapshots for the student without paying attention to him or appearing those pictures to the observer or correcting the exam. The difficulty of offering a safe and high-credibility exam and reducing the phenomenon of cheating requires excellent capabilities in some countries. It also needs prior arrangements and good preparation. It also needs to develop technological capabilities continuously in a high-cost material that may reduce the cheating rates in such a kind of exam.    


Author(s):  
Nor Aishah Ahad

The purpose of the study is to examine the sleep quality of undergraduates during pre-examination period. In addition, the effect of examination stress and sleep quality on academic performance of the undergraduates is also of interest. Questionnaire is used to collect responses from 379 undergraduates regarding perceived stress and sleep quality on the first week of final examination. Pittsburgh Sleep Quality Index (PSQI) is the instruments used in investigating the perceived sleep quality of respondents one month before the test is taken. Perceived Stress Scale (PSS) is used to measure the perceived stress level of the subjects for the past one month. The data dissemination concludes that the overall sleep quality of the undergraduates is poor. Female undergraduates tend to have a slightly better sleep quality than the male undergraduates. The sleep quality shows a weak positive relationship with perceived stress. It is also discovered that sleep quality and perceived stress have no effect on academic performance. The university authority might need to look into the problem of poor sleep quality among undergraduates especially during pre-examination period.


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