scholarly journals A novel bleaching approach: Microwave assisted sunflower oil bleaching and optimization

2022 ◽  
Vol 72 (4) ◽  
pp. e437
Author(s):  
Ş. S. Seçilmiş ◽  
D. Koçak Yanık ◽  
S. Fadıloğlu ◽  
F. Göğüş
Keyword(s):  
Sunflower Oil ◽  
Edible Oils ◽  
Oil Quality ◽  
Bleaching Clay ◽  
Factors Affecting ◽  
Independent Variables ◽  
Dependent Variables ◽  
Hue Angle ◽  
Totox Value ◽  
Central Composite

The factors affecting the microwave bleaching of sunflower oil and the interaction between them were investigated and optimized by response surface methodology using a three-factor five-level central composite rotatable design. Microwave power, time and the amount of bleaching clay were selected as independent variables studied in the range of 70-120 W, 2-15 min, and 0.01-0.5%. The dependent variables that measure the bleaching efficiency and oil quality were evaluated as hue angle, chroma and totox value. Optimization was carried out by minimizing totox and chroma and maximizing hue angle. Hue angle, chroma and totox were found as 96.91, 37.66 and 23.31 under optimal conditions. Optimal microwave bleaching was successfully performed by using less bleaching clay (0.4%) and a shorter time (8 min) compared to the current industrial application without any adverse effect on oil quality. Hence, microwave bleaching is thought to be an alternative method for the bleaching of edible oils.

scholarly journals Material Cost Optimization and Quality Control Improvement of Building Construction

2021 ◽  
Author(s):  
Sori Tesema ◽  
Woyesa Ararsa ◽  
Jifara Chimdi ◽  
Emer Tucay Quezon
Keyword(s):  
Quality Control ◽  
Construction Material ◽  
Cost Optimization ◽  
Construction Materials ◽  
Building Construction ◽  
Multilinear Regression ◽  
Factors Affecting ◽  
Independent Variables ◽  
Material Cost ◽  
Dependent Variables

A building construction project cannot be completed successfully by only planning and scheduling. Project controlling that consists of project monitoring and updating, is the other critical stage. Construction materials cost and quality are becoming a severe problem in Ethiopia, especially in Ambo Town, where little consideration is given. The study tried to evaluate different factors affecting the materials cost and quality on building construction site, rank significant factors that are prevalently affecting the cost and quality of materials used for building projects from the point of view of the respondents, and established a model to optimize materials cost and materials quality using multilinear regression method to come up with the model best fit. Purposive sampling was used, and 180 questionnaires were administered on building construction firms to analyze Material cost Optimization and quality control Improvement- Case Study of Ambo Town. To achieve this, a questionnaire survey containing factors affecting Building construction material cost and quality, which were identified by literature and Interview, was analyzed by using the Relative Importance Index, Pearson's correlation, and Multilinear regression model. Variables are statistically significant at 95% confidence level is assessed that all of the independent variables are positively related to Building Construction material cost and quality. The RII results showed that Material Wastage minimization (RII = 0.908), Proper workmanship (RII= 0.859), Sufficient Training of workers/staff (RII = 0.876), Proper forecasting of materials price in the market (RII = 0.850), Using suitable, safe and secure storage (RII = 0.886), Quality checking for each delivery of the aggregates to the site (RII = 0.889), Cutting of materials ( glass, tiles, plywood) (RII = 0.870) and Design changes (RII = 0.770) were ranked as the most significant among factors affecting building construction materials. Also, Two Multiple linear regression models were established for both dependent variables (material cost and material quality). The analysis results showed all independent variables were significant and had a strong positive relationship with dependent variables. The values of R2 for the developed equations indicated 0.771 for material cost and 0.777 for material quality. Hence, the basic recommendations such as planning and monitoring construction activities and inspection and verification of materials were anticipated to be exercised by key role players of the construction industry.

scholarly journals ANALISIS FAKTOR-FAKTOR YANG MEMENGARUHI WAKTU KELULUSAN MAHASISWA DENGAN MENGGUNAKAN METODE GOMPIT (Studi Kasus: Mahasiswa Fakultas MIPA Universitas Udayana)

2013 ◽  
Vol 2 (3) ◽  
pp. 40
Author(s):  
NI KOMANG DEBY ARIANI ◽  
I WAYAN SUMARJAYA ◽  
TJOKORDA BAGUS OKA
Keyword(s):  
Natural Science ◽  
Study Program ◽  
Factors Affecting ◽  
Independent Variables ◽  
Gender Study ◽  
Dependent Variables ◽  
Significant Region ◽  
Two Independent Variables

The aims of this research analyzed the factors affecting the period of the students’ graduation based on GPA at Faculty of Mathematics and Natural Science, Udayana University by using gompit regression. This data strongly indicates unbalanced between students who graduated on time and students who graduated not on time. The result of this study indicates that the graduation of the students based on the GPA categorization satisfied all of the independent variables was not significant. Meanwhile, for the graduation of the students based on the GPA categorization was highly satisfied. There are four dependent variables which are significant, such as: gender, study program, region, and the final assignment accomplishment period. Moreover, for the students’ graduation based on the GPA categorization with praises, there were two independent variables which were significant: region and the final assignment accomplishment period.

scholarly journals OPTIMIZATION OF THE ENZYME ASSISTED EXTRACTION OF ESSENTIAL OIL FROM THE LEAVES AND BRANCHES OF CINNAMOMUM CASSIA USING BOX-WILSON METHOD

2017 ◽  
Vol 55 (6) ◽  
pp. 690
Author(s):  
Hoang Thi Bich ◽  
Le Mai Huong ◽  
Nguyen Quyet Chien ◽  
Dinh Thi Thu Thuy ◽  
Le Tat Thanh ◽  
...  
Keyword(s):  
Essential Oil ◽  
Oil Yield ◽  
Polynomial Equations ◽  
Cinnamomum Cassia ◽  
Independent Variables ◽  
Assisted Extraction ◽  
Dependent Variables ◽  
Order Polynomial ◽  
Central Composite ◽  
Enzyme Assisted Extraction

The process of enzyme assisted extraction of essential oil from the leaves and branches of the Vietnamese aromatic plant Cinnamomum cassia was studied and optimized using a Box-Wilson central composite design consisting of 05 independent variables (pH, temperature T, time τ, concentration of the enzyme Laccase, and concentration of the enzyme Cellic Htec2) and two dependent variables (reducing sugar and yield of essential oil). Second-order polynomial equations were obtained for the responses, which fitted well with the experimental data. Optimal conditions for oil yield were found at pH = 5.2; T = 440C; τ = 5h30'; Laccase = 0.42 ml/g, and Cellic Htec2 = 1.15%. The experimental value (0.982% oil yield) was close to the predicted value (0.978%). The application of enzyme assisted extraction  in combination with optimization using response surface methodology substantially improved the oil yield as compared with traditional method. 

scholarly journals Material Cost Optimization and Quality Control Improvement of Building Construction

2021 ◽  
Author(s):  
Sori Tesema ◽  
Woyesa Ararsa ◽  
Jifara Chimdi ◽  
Emer Tucay Quezon
Keyword(s):  
Quality Control ◽  
Construction Material ◽  
Cost Optimization ◽  
Construction Materials ◽  
Building Construction ◽  
Multilinear Regression ◽  
Factors Affecting ◽  
Independent Variables ◽  
Material Cost ◽  
Dependent Variables

A building construction project cannot be completed successfully by only planning and scheduling. Project controlling that consists of project monitoring and updating, is the other critical stage. Construction materials cost and quality are becoming a severe problem in Ethiopia, especially in Ambo Town, where little consideration is given. The study tried to evaluate different factors affecting the materials cost and quality on building construction site, rank significant factors that are prevalently affecting the cost and quality of materials used for building projects from the point of view of the respondents and established a model to optimize materials cost and materials quality using multilinear regression method to come up with the model best fit. Purposive sampling was used, and 180 questionnaires were administered on building construction firms to analyze Material cost Optimization and quality control Improvement- Case Study of Ambo Town. To achieve this, a questionnaire survey containing factors affecting Building construction material cost and quality, which were identified by literature and Interview, was analyzed by using the Relative Importance Index, Pearson's correlation, and Multilinear regression model. Variables are statistically significant at 95% confidence level is assessed that all of the independent variables are positively related to Building Construction material cost and quality. The RII results showed that Material Wastage minimization (RII = 0.908), Proper workmanship (RII= 0.859), Sufficient Training of workers/staff (RII = 0.876), Proper forecasting of materials price in the market (RII = 0.850), Using suitable, safe and secure storage (RII = 0.886), Quality checking for each delivery of the aggregates to the site (RII = 0.889), Cutting of materials ( glass, tiles, plywood) (RII = 0.870) and Design changes (RII = 0.770) were ranked as the most significant among factors affecting building construction materials. Also, Two Multiple linear regression models were established for both dependent variables (material cost and material quality). The analysis results showed all independent variables were significant and had a strong positive relationship with dependent variables. The values of R2 for the developed equations indicated 0.771 for material cost, and 0.777 for material quality. Hence, the basic recommendations such as planning and monitoring construction activities and inspection and verification of materials were anticipated to be exercised by key role players of the construction industry.

Development and Evaluation of Chia Seed Mucilage-based Buccal Mucoadhesive, Sustained Release Tablet of Venlafaxine

2016 ◽  
Vol 9 (6) ◽  
pp. 3536-3543
Author(s):  
Pankaj P Nerkar ◽  
Hitendra Mahajan ◽  
Pradum Ige ◽  
Rima Solanki
Keyword(s):  
Drug Delivery ◽  
Calcium Phosphate ◽  
Drug Release ◽  
Magnesium Stearate ◽  
Independent Variables ◽  
Chia Seed ◽  
Dependent Variables ◽  
Design Software ◽  
Central Composite ◽  
Seed Mucilage

In the present study we performed extraction of chia seed mucilage, formulation, and evaluation of buccal mucoadhesive tablet containing extracted mucialge and venlafaxine, an commonly used antidepressant. Tablets were prepared using a formulation mixture of calcium phosphate, talc and magnesium stearate. Tablets were prepared by experimental factorial design software, using central composite design; where the concentration of chia seeds mucilage and that of magnesium stearates were independent variables. Drug release, friability and mucoadhesive strength were studied as dependent variables. Tablets were characterized for post compression profile. The optimized formulation showed the maximum drug release as 99.4% in 6 h, friability of 0.53% and mucoadhesive strength of 20.3 g. These features appear to be adequate for developing a buccal mucoadhesive drug delivery system for venlafaxine.  

scholarly journals ANALISIS FAKTOR-FAKTOR YANG MEMPENGARUHI PENYALURAN KREDIT PERBANKAN PADA BANK UMUM DI BURSA EFEK INDONESIA

2014 ◽  
Vol 4 (1) ◽  
pp. 9
Author(s):  
Septiana Icha Pratiwi ◽  
Tina Sulistiyani
Keyword(s):  
Empirical Evidence ◽  
Capital Adequacy ◽  
Third Party ◽  
Bank Credit ◽  
Return On Assets ◽  
Factors Affecting ◽  
Independent Variables ◽  
Capital Adequacy Ratio ◽  
Dependent Variables ◽  
Research Studies

This research is aimed to obtain empirical evidence on the factors affecting the distribution of bank credit. There are many factors affecting the distribution of bank credit. However, this research was only limited by dominant factors affecting the distribution of bank credit obtained from bank credit theories and the results from previous research studies. Therefore, factors which were the selected independent variables in this research were Third Party Funds (DPK), Capital Adequacy Ratio (CAR), Non Performing Loan (NPL), Return On Assets (ROA), and Loan to Deposit Ratio (LDR). While the dependent variables were the distribution of bank credit which was proxied by Loan to Asset Ratio (LAR) variable. The results of the research indicates that simultaneously, the variables of DPK, CAR, NPL, ROA, dan LDR significantly affect  the distribution of bank credit in the period 2010-2012. While partially, a result was obtained that DPK, NPL, and LDR variables significantly affect the distribution of bank credit. Meanwhile CAR and ROA variables do no significantly affect the distribution of bank credit in the period 2010-2012

scholarly journals Application of response surface methodology (RSM) in statistical optimization and pharmaceutical characterization of a patient compliance effervescent tablet formulation of an antiepileptic drug levetiracetam

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Abikesh Prasada Kumar Mahapatra ◽  
Rohit Saraswat ◽  
Mahesh Botre ◽  
Basudev Paul ◽  
Neelkant Prasad
Keyword(s):  
Response Surface Methodology ◽  
Citric Acid ◽  
Antiepileptic Drug ◽  
Independent Variables ◽  
Dry Granulation ◽  
Dependent Variables ◽  
Roll Compaction ◽  
Effervescent Tablet ◽  
The Impact ◽  
Central Composite

Abstract Background The main objective of the present study was to develop and optimize an effervescent tablet of levetiracetam, an antiepileptic drug, using central composite design with response surface methodology (RSM).The present investigation helps to overcome the problem associated with levetiracetam tablets and liquid dosage forms with children and elderly people like bad taste and swallowing difficulties. It also facilitates as an alternative manufacturing process for advanced patented technology like 3D printing process employed in SPRITAM® tablet. Levetiracetam effervescent tablets were prepared by dry granulation (roll compaction) method using water-soluble excipients and optimized by central composite rotatable design (CCRD) using two variables (citric acid and effersoda) at two levels (high and low). Overall, fourteen formulation trials were generated through statistical software Minitab 17.3.0 placing 6 center points, 4 cube points, and 4 axial points. All formulations were subjected to compression using single punch machine. Results Quality attributes of compressed tablets were evaluated using various compendial and non-compendial tests. RSM was used to observe the responses like effervescent time, hardness, and friability of the prepared tablet batches for different levels of all the variables. Polynomial equations were developed, and model plots (contour plot and 3-dimensional model surface plots) were generated to study the impact of acid-base couple on the responses. Finally, the optimized formulation was selected on the basis of desired effervescent time, hardness, friability, percent drug release, and drug content. From the studied RSM design, it was observed that small changes in the independent variables (citric acid and effersoda) correlate with shifts in the dependent variables, i.e., the desired responses. The study reveals that all the independent variables (citric acid and effersoda) and dependent variables (effervescent time, hardness, and friability) have a good correlation as indicated by good linear regression coefficient of 0.9808, 0.9939, and 0.9892 for effervescent time, hardness, and friability respectively. Conclusion Levetiracetam effervescent tablets are satisfactorily prepared by dry granulation (roll compaction) approach. All desired critical quality attributes were found to be satisfactory. The applicability of RSM with desirability function in optimizing the levetiracetam formulation has made it possible to identify the impact of various independent variables and explore their effect on required responses.

ANALISA PENGARUH IKLIM ORGANISASI DAN KOMPETENSI TERHADAP KINERJA PEGAWAI PT HUTAMA KARYA

2018 ◽  
Vol 5 (1) ◽  
Author(s):  
Erik Wardhana, MM.
Keyword(s):  
Organizational Climate ◽  
Employee Performance ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Free Variable ◽  
Independent Variables ◽  
Dependent Variables ◽  
Correlational Approach ◽  
Survey Research Methods ◽  
The Relationship

This study entitled "Analysis of Effect of Climate Organization and Competence Againt Employee PT. Hutama Karya ". The purpose of this study was to obtain information on the relationship between the free variable that organizational climate (X1) and competence (X2) with the dependent variable is employee performance (Y), either partially or simultaneously, This study used survey research methods with the correlational approach and predictive, which aims for the relationship and influence between independent and dependent variables. The sampling technique can be done randomly (simple random sampling) of 852 employees, which is considered to resprentatif is 89 people. And to solve problems, to analyze and examine the relationship and influence between the independent variables on the dependent variable used models kausalistik through regression analysis with SPSS 14.0

PENGARUH PERSONAL BACKGROUND, POLITICAL BACKGROUND DAN PENGEATAHUAN DEWAN TENTANG ANGGARAN TERHADAP PERAN DPRD DALAM PENGAWASAN KEUANGAN DAERAH

2008 ◽  
Author(s):  
Yesi Mutia Basri ◽  
Rosliana Rosliana
Keyword(s):  
Multivariate Analysis ◽  
Significant Influence ◽  
Political Activity ◽  
Primary Data ◽  
Financial Control ◽  
Independent Variables ◽  
Dependent Variables ◽  
Political Background ◽  
Activity Dependent

This research aim to examine the influence of personal background, political background, and council budget knowledge towards the role of DPRD on region financial control. This research is motivated by the fact that individual background will effect to individual behavior on political activity. Dependent variables in this research are personal background, political background, and council budges knowledge towards the role of DPRD on region financial control Independent variables are the role of DPRD on region financial control in planning, implementing, and responsibility steps. The data in this research consist of primary data that taken from questionnaires distributed directly to respondents. The collected are from 34 Respondents that members of DPRD at Pekanbaru. Hypothesis of this research are examine by using Multivariate Analysis of Variances (MANOVA). The result of this research HI personal background political background and budget knowledge have significant influence toward the role of DPRD on region financial control in planning steps.H2 personal background, politico I background and budget knowledge have no significant influence toward the role of DPRD on region financial control in Implementing steps. H3 personal background political background and budget knowledge have no significant influence toward the role of DPRD on region financial control in Controlling steps.

scholarly journals Assessing the Impact of Bank Concentration and Liquidity of Refah Bank Branches on Profitability during the Period1383-190

2014 ◽  
Vol 4 (1) ◽  
pp. 248
Author(s):  
Hossin Ostadi ◽  
Nastran Monsef
Keyword(s):  
Commercial Banks ◽  
Bank Capital ◽  
Factors Affecting ◽  
Bank Branches ◽  
Independent Variables ◽  
Bank Deposits ◽  
The Impact ◽  
Bank Concentration ◽  
Research Period

Profitability is an important factor to show this articledoeswhat is the role of the intermediary bank to collect your savings and allocation of loans.  Given the importance of profitability indicators in this study, the factors affecting the profitability of commercial banks in Iranare analyzedwith emphasis on the degree of centralization and bank deposits. Dependent variable is indicators of profitability (ROE, ROA) and bank deposits, bank size, bank capital, focus on liquidity and banking requirements are independent variables. Correlation analysis and OLS regression are used and the research period is 1381 to 1390 that the country's territory where bank branches.Our results indicate that the effect of bank size on profitability is positive and the increase in bank size on profitability is increased. Impact on the profitability of bank deposits is positive, ie increasing the profitability of bank deposits increased. Finally, the impact of bank concentration on profitability is positive. Increasing the bank's focus profitability increases. Moreover, the results adversely affect the liquidity of the index is profit. 

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