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2022 ◽  
Vol 16 (1) ◽  
pp. 34
Author(s):  
Andi Nurkholis ◽  
Yopita Anggela ◽  
A Ferico Octaviansyah P

In the face of increasing technological advances, the development of society refers to the ability to keep up with technological developments and the ability to access and present useful information. Lack of information and knowledge about the location of the gift store makes the public or tourists only visit the nearest store or those suggested by friends and people around. This study aims to develop a web-based geographic information system to make it easier for people to find the location of Lampung gift store. In this study using extreme programming as a development method. Based on the results of testing ISO 25010 that has been carried out involving 50 respondents, the conclusion that the quality of the software produced has a success percentage with a total average of 90.66%. So it can be concluded that the percentage value obtained shows the overall software quality has a "Very Good" scale and is feasible to use.


Author(s):  
Dominica Una ◽  
Dulu Appah ◽  
Joseph Amieibibama ◽  
William Iheanyi Eke ◽  
Onyewuchi Akaranta

Scale deposits are a significant flow assurance issue in oil and gas operation with huge financial consequences. Not only does scaling drastically impair well performance, but it also has the potential to permanently destroy formation and equipment. Scale inhibitors are commonly used to prevent the accumulation of scales. A good scale inhibitor should be stable at the minimum effective inhibitor concentration under imposed operating conditions without interfering with or being affected by other chemical additives. However, most conventional scale inhibitors that possess these attributes, do not meet environmental restrictions which make them unfavorable for continuous application, prompting the industry to focus more on developing eco-friendly substitutes. This paper reviews the various types of scale inhibitors and general scale inhibition mechanism, summarizes scale concepts and ultimately, assesses the potential of flavonoids from natural plants as potential green scale inhibitors.


2021 ◽  
Vol 58 (12) ◽  
Author(s):  
D. Ø. Nordanger ◽  
◽  
R. Gjestad ◽  
P. Solhaug ◽  
A. Andersen ◽  
...  

There is a need to assess whether the resources invested in building trauma competence in services actually lead to higher levels of competence. For this purpose, we have developed an instrument called the Trauma and Development Education Monitor (TANDEM). The present article presents the process behind developing the instrument and an initial study of its psychometric properties. The tested version consisted of 59 items distributed across the domains of readiness, agency, reflexivity, knowledge, practice and culture at work. Based on responses from 415 professionals in relevant services, concept and criterion validity was examined through reliability analyses, factor analyses and regression analyses. Based on the analyses, the tested version was reduced to 54 items in the final version, distributed across the same six domains. As dimensions, the domains generally showed good scale reliability, and for the final version factor analyses confirmed a one-dimensional model for all domains. The instrument discriminated between respondents who reported more versus less previously received trauma competence building and showed specificity as a measure of trauma versus more general competence. The results indicate that TANDEM has the potential to become a useful tool in endeavours to implement trauma competence in services, as well as in research activities in this field. Keywords: trauma, competence, instrument, validity


Author(s):  
Ully Zakyatul Husna ◽  
Khaled Abdalla Elraies ◽  
Juhairi Aris B. M. Shuhili ◽  
Ahmed Abdulla Elryes

AbstractScale formation is one of the major issues in the petroleum industry. The development of these scale layers could result in production losses and equipment instability because of pipeline blockage, energy leakage, corrosion acceleration and severe accidents which will impact the safety of the production process. The utilization of chemical scale inhibitors (SIs) is considered an economical and successful route for the scale prevention. Two main components of the chemical SIs are phosphonate and polymer. Many of the phosphorous compounds are toxic and very expensive. Besides, portions of the phosphonate compounds are thermally less stable than polymeric scale inhibitors in a harsh environment of high temperature and high pressure (HTHP). This is considered as an issue as a good scale inhibitor should be able to be applied under wide range of temperature and pressure. Therefore, the continuous development in petroleum production imposes the need to develop a novel phosphorus-free scale inhibitor. Meanwhile, polymers have been broadly applied as a scale inhibitor in oil and gas fields because of their enhanced thermal stability and improved environmental compatibility. Polymeric scale inhibitors also show better dispersing efficiency. Today, the biopolymers have pulled in a tremendous consideration from the industry to replace the utilization of synthetic polymer due to their interesting qualities such as their lightness, strong mechanical properties, and appealing functionality. Biopolymers are insensitive toward brine salinity yet are vulnerable to biological degradation. Specifically, these polymers present enormous potential for environmental application because of their biodegradability, chemical adaptability and reactivity, biocompatibility, and nontoxicity. Recently, several new eco-friendly scale inhibitors have been reported in the literature. Hence, this paper provides a review of the utilization of biopolymer as scale inhibitor in the application of oil and gas industry under laboratory approach or field trial application. The types of scales, chemical scale inhibitors (SIs) and biopolymers are likewise reviewed here. The presented work in this paper is expected to enhance the fundamental understanding of scale formation, as well as contribute to the development process of biopolymer scale inhibitors.


2021 ◽  
Vol 19 (4) ◽  
pp. 147470492110441
Author(s):  
Patrick J. Nebl ◽  
Mark G. McCoy ◽  
Garett C. Foster ◽  
Michael J. Zickar

The mate retention inventory (MRI) has been a valuable tool in the field of evolutionary psychology for the past 30 years. The goal of the current research is to subject the MRI to rigorous psychometric analysis using item response theory to answer three broad questions. Do the individual items of the MRI fit the scale well? Does the overall function of the MRI match what is predicted? Finally, do men and women respond similarly to the MRI? Using a graded response model, it was found that all but two of the items fit acceptable model patterns. Test information function analysis found that the scale acceptably captures individual differences for participants with a high degree of mate retention but the scale is lacking in capturing information from participants with a low degree of mate retention. Finally, discriminate item function analysis reveals that the MRI is better at assessing male than female participants, indicating that the scale may not be the best indicator of female behavior in a relationship. Overall, we conclude that the MRI is a good scale, especially for assessing male behavior, but it could be improved for assessing female behavior and individuals lower on overall mate retention behavior. It is suggested that this paper be used as a framework for how the newest psychometrics techniques can be applied in order to create more robust and valid measures in the field of evolutionary psychology.


Crystals ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1054
Author(s):  
Arne Vancleef ◽  
Tom Van Gerven ◽  
Leen C. J. Thomassen ◽  
Leen Braeken

Ultrasound has proven to be an important tool for controlling nucleation in continuous tubular crystallizers. However, insufficient information is available about the parameters controlling the nucleation rate in a continuous ultrasonic process. Previous research has studied parameters related to the nucleation rate, but has not measured the nucleation rate directly or continuously. In this work, the nucleation rate is measured continuously and inline to solve this problem and achieve a better process understanding. The results indicate that the ultrasound-assisted nucleation process is presumably dominated by secondary nucleation. Additionally, the supersaturation, residence time and flow rate have a strong influence on the nucleation rate. On the other hand, the influence of the ultrasonic power is crucial but levels off once a certain amount of power is reached. The static pressure in the system determines the effective ultrasonic power and is therefore also important for the nucleation rate. Finally, maintaining an equal power per unit of volume and an equal residence time by increasing the tubing diameter seems to be a good scale-up method. These results will improve understanding of ultrasonic tubular crystallizers and how to control them.


2021 ◽  
Vol 15 (2) ◽  
Author(s):  
Dian Palupi Restuputri ◽  
M Syahban Giraldi ◽  
Shanty Kusuma Dewi ◽  
Ilyas Masudin ◽  
Uci Yuliati

This article aims to measure the application of occupational safety and health using Cooper's Reciprocal Safety Culture Model and Confirmatory Factor Analysis method.  The objective function of this article is to find out the aspects of safety culture that have been implemented by companies. A questionnaire was circulated to staff on the company's production floor as part of this study. The results of the questionnaire recapitulation were then analyzed using the confirmatory factor analysis method. Based on the score calculation results and the category determination build on the questionnaire scores on each dimension of the safety culture applied to the Steel Company, the safety climate value of 55.58 is obtained, which is on a 'quite good' scale. The safety behaviour value of 44, 89 is included on a 'quite good' scale, the safety management system value of 22.04 is on a 'poor' scale, and the safety culture value of 40.83 is on the 'quite good' scale. With these results, it is essential to make improvements to the safety culture in the company, especially in the dimensions of the safety management system, which is on the 'quite good' scale.


2021 ◽  
Vol 7 (2) ◽  
pp. 194-199
Author(s):  
Nazmi Uliah ◽  
Bakhtiar Rifai ◽  
Sopiyan Dalis

The role of the School Extracurricular (EKSKUL) in a junior high school, high school, vocational high school/equivalent has an important function in improving the quality of school environment, proper selection in determining the Chair of the EKSKUL is very necessary in order to be able to protect and become role models for students in the environment. school. The absence of a fixed application of specific criteria, and the absence of voter understanding in choosing the extracurricular chair according to the criteria, make this study more helpful in applying the criteria using the profile matching method. It is hoped that it can help the existing schools at MA Tarbiyah Islamiyah in facilitating the selection of the chairman of EKSKUL. The criteria that have been determined are Behavioral Aspects, Responsibility Aspects, Communication Aspects. The assessment was carried out by filling out a Likert scale questionnaire by the respondents, where Scale 5 = Very Good, Scale 4 = Good, Scale 3 = Doubtful, Scale 2 = Disagree, Scale 1 = Strongly Disagree. The results were processed using the profile matching method, and based on the results obtained, the top-ranking was Dhiyah Fathiyyah with a final score of 4.86. So it can be concluded that there is an influence in determining the selection of extracurricular chairman using the profile matching method according to the existing criteria.


2021 ◽  
pp. 008467242110279
Author(s):  
Wesley J Wildman ◽  
Connor P Wood ◽  
Catherine Caldwell-Harris ◽  
Nicholas DiDonato ◽  
Aimee Radom

The Multidimensional Religious Ideology (MRI) scale is a new 43-item measure that quantifies conservative versus liberal aspects of religious ideology. The MRI focuses on recurring features of ideology rooted in innate moral instincts while capturing salient differences in the ideological profiles of distinct groups and individuals. The MRI highlights how religious ideology differs from political ideology while maintaining a robust grounding in the social psychology of ideology generally. Featuring three major dimensions (religious beliefs, religious practices, and religious morality) and eight subdimensions, the MRI is sensitive enough to generate novel insights into religious ideology across demographic groups and individual differences. The MRI is also summative, yielding a single quantitative measurement of left–right religious ideology with good scale and test–retest reliability. Analysis of 839 respondents across two studies confirmed the widespread assumption that religious ideology is a parallel construct to political ideology, emerging from similar foundations but following a distinct set of rules. The MRI shows the importance of conceptualizing ideology in ways that access the full spectrum of real-world ideological convictions—an important reminder, given the salience of religious factors for influencing ideology generally.


2021 ◽  
Vol 9 (2) ◽  
pp. 153-160
Author(s):  
Rohman Willian ◽  
Husni Hasbullah ◽  
Fitri Widiastuti ◽  
Dahmiri Dahmiri

The purpose of this study was to describe and analyze the influence of human resources competencies and entrepreneurial characteristics on the performance of the small-medium-sized food industry with the intervening variable of competitive advantage. This research is verification in nature, basically wants to test the truth of a hypothesis which is carried out through data collection in the field. The unit of analysis in this research is the food SMIs (Small and Medium Industries) actors in Jambi Province. The data were obtained through distributing questionnaires to 378 SMIs food entrepreneurs. The data analysis used was quantitative analysis using Structural Equation Modelling (SEM). The analysis results concluded that the respondents' responses to the variables of human resources competence, entrepreneurial characteristics, competitive advantage, and SMIs performance obtained the average number included in the good scale range. The variables of human resources competency, entrepreneurial characteristics, competitive advantage significantly influence the performance of food SMIs in Jambi Province, either partially or simultaneously. Human resources competency and entrepreneurial characteristics variables have a significant indirect effect on SMIs performance through the intervening variable of competitive advantage. The entrepreneurial characteristics variable is the dominant variable affecting the SMIs performance. The research model by adding the competitive advantage variable as an intervening variable resulted in a better effect on the SMIs performance.


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