The investigation of hydrophilic modification of membrane surface based on the mono-esterification between maleic anhydride and polyethylene glycol: Response surface methodology, reaction kinetics and performance analysis

2020 ◽  
Vol 112 ◽  
pp. 193-201
Author(s):  
Cong Shen ◽  
Jingkui Yang ◽  
Zhenyu Cui ◽  
Shuhao Qin ◽  
Qingqing Qin
Keyword(s):  
Response Surface Methodology ◽  
Polyethylene Glycol ◽  
Performance Analysis ◽  
Maleic Anhydride ◽  
Reaction Kinetics ◽  
Response Surface ◽  
Membrane Surface ◽  
Hydrophilic Modification ◽  
And Performance

Combination of importance-performance analysis and response surface methodology for enhancing satisfaction

2016 ◽  
Vol 33 (6) ◽  
pp. 792-802 ◽  
Author(s):  
Ro Jin Pak
Keyword(s):  
Response Surface Methodology ◽  
Performance Analysis ◽  
Response Surface ◽  
Online Courses ◽  
Current Status ◽  
Entrance Examination ◽  
College Entrance Examination ◽  
College Entrance ◽  
Statistical Tool ◽  
Content Type

Purpose – In order to know how to enhance the satisfaction of online courses in preparing for the college entrance examination in Korea, the purpose of this paper is to combine both the importance-performance analysis (IPA) and the response surface methodology (RSM). Design/methodology/approach – IPA is a simple but powerful tool for understanding the current status of factors or attributes in management problems. However, it lacks to provide the proper indication of what to do next on those factors or attributes to optimize a goal. RSM is a statistical tool helping us to set up a direction of factors or attributes in optimizing an output. The author attempts to combine both IPA and RSM in order to discover the next step after IPA for optimizing the goal. As an example, the author considers how to enhance the satisfaction of online courses in preparing for the college entrance examination in Korea. Findings – The combination of IPA and RSM enables us to find a way to attain a goal, for example, satisfying customers in a concrete and creative way. Research limitations/implications – Sample size is enough for research purpose but is a bit small for general purpose. Practical implications – This research tries to answer what to do next after IPA. Social implications – This research provides a predictive guide to satisfy customers. Originality/value – As far as the author knows, combining both IPA and RSM has not been made so far. It is a fusion of managerial and engineering techniques.

scholarly journals Preparation and performance of sensing material for diethyl ether: Optimization of working conditions by response surface methodology

2020 ◽  
Author(s):  
Wenjuan Zhang ◽  
Fuxiu Yang ◽  
Hong Wang ◽  
Chunxiu Gu ◽  
Yun Lu ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Diethyl Ether ◽  
Working Conditions ◽  
Sol Gel ◽  
Optimization Method ◽  
Impregnation Method ◽  
Sensing Material ◽  
And Performance ◽  
Lower Temperature

Pd doped ZnNi3Al2O7 composite was synthesized by sol-gel and impregnation method. The EDS spectrum and TEM image showed that Pd atoms are uniformly distributed on the surface of ZnNi3Al2O7 with a particle size of less than 50 nm. A sensitive diethyl ether gas sensor based on cataluminescence on the composite at lower temperature than 200℃ was reported. There is a good linear relationship between the luminescence intensity and the concentration of diethyl ether in the range of 0.1-75 mg/m3. The detection limit (3σ) is 0.06 mg/m3. The working conditions optimized by response surface methodology were analytical wavelength of 548.86 nm, reaction temperature of 109.18℃ and carrier gas velocity of 125.88 ml/min, respectively. The sensitivity of the method can be increased by 4.5% under the optimized working conditions. The optimization method is universal for many multi parameter processes.

Performance Optimization of Cement-Fly Ash Grouting Material Based on Response Surface Methodology

2021 ◽  
Vol 1036 ◽  
pp. 337-344
Author(s):  
Lin Lin Wang ◽  
Xiang Bin Xu ◽  
Qing Song Zhang ◽  
Shi Yi Li
Keyword(s):  
Response Surface Methodology ◽  
Fly Ash ◽  
Response Surface ◽  
Performance Optimization ◽  
Reducing Agent ◽  
Sand Fly ◽  
Hydration Reaction ◽  
Factors Affecting ◽  
And Performance ◽  
Grouting Materials

Filling grouting is effective to control the overlying strata movement and surface subsidence in mining and tunnel engineering.Grouting material is used in grouting reinforcement projects. In this experiment,based on the mechanical properties of grouting materials, Expert Design and response surface methodology (RSM) is used to optimize the mix proportion of grout materials. The sand-fly ash ratio ,water reducing agent addition are researched as variables, and the 3D response surface is established between the factors and the performance indicators. Microstructure explains the mechanism of factors affecting performance indicators.The results show the relationship between factors and performance can be well fitted by RSM.The order of significance on compressive strength and solidification ratio is sand-fly ash ratio＞water reducing agent addition and the order of significant on viscosity is water reducing agent addition＞sand-fly ash ratio.Response surface methodology accurately describes the functional relationship between the target value and the design variables.Microstructure shows hydration reaction and the secondary hydration reaction of fly ash will be carried out after cement-fly ash mixed, and the addition of fly ash is especially important for grout material properties.

Sign in / Sign up

Export Citation Format

Share Document