Model and optimal operational windows for hydrodynamic fiber fractionation

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Thomas Schmid ◽  
Stefan Radl

AbstractBased on fitted experimental data, an empirical fractionation model for mini-channel hydrodynamic fiber fractionation (miniFrac) is presented. This model, combined with an optimization procedure, is then used as a design tool to synergize competing fractionation performance characteristics, i. e., product quality, product yield and energy demand. Based on this model, miniFrac is compared to state-of-the-art fiber fractionation technology with respect to (i) long fiber-short fiber fractionation and (ii) fines-fiber fractionation. In terms of fines-fiber fractionation, miniFrac is outperformed by typical micro-hole pressure screening regarding the purity of fines fraction. However, a comparison with a slotted (slot width of 0.2 mm) and a smooth-holed pressure screen (hole diameter of 0.8 mm) shows, that miniFrac is capable of outperforming both systems regarding product quality and energy demand at a comparable product yield. If, in the case of fines-fiber fractionation, reject purity (i. e., fines exclusion) is more important than fines purity (i. e., long fiber remain in the reject), miniFrac is an interesting tool with some key advantages over pressure screens.

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4271
Author(s):  
Lucia Cattani ◽  
Paolo Cattani ◽  
Anna Magrini

Photovoltaic panel efficiency can be heavily affected by soiling, due to dust and other airborne particles, which can determine up to 50% of energy production loss. Generally, it is possible to reduce that impact by means of periodic cleaning, and one of the most efficient cleaning solutions is the use of demineralized water. As pauperization of traditional water sources is increasing, new technologies have been developed to obtain the needed water amount. Water extracted from the air using air to water generator (AWG) technology appears to be particularly suitable for panel cleaning, but its effective employment presents issues related to model selection, determining system size, and energy efficiency. To overcome such issues, the authors proposed a method to choose an AWG system for panel cleaning and to determine its size accordingly, based on a cleaning time optimization procedure and tailored to AWG peculiarities, with an aim to maximize energy production. In order to determine the energy loss due to soiling, a simplified semiempirical model (i.e., the DIrt method) was developed as well. The methodology, which also allows for energy saving due to an optimal cleaning frequency, was applied to a case study. The results show that the choice of the most suitable AWG model could prevent 83% of energy loss related to soling. These methods are the first example of a design tool for panel cleaning planning involving AWG technology.


Author(s):  
Sri Ekowati ◽  
Selamat Riyadi

ABSTRACTThis study aims to determine the effect of service quality, product quality and  trust on customer loyalty aromania parfumery Bengkulu. This type of research is a survey research with a quantitative approach, the object of this research is the consumers in Aromania parfumery, which is precisely located on Jl. Kapuas Raya, Lingkar Barat, Kec. Gading Cempaka, Bengkulu City. with the sampling method, namely non-propability technique, namely insidential sampling technique. The number of respondents in this study were 105 people. The data collection method used a questionnaire. By using data analysis techniques using Multiple Linear Regression Analysis Test, and Hypothesis Test, namely test t and test f. The results of this study can be concluded that the variable service quality Aromania parfumery has a positive effect on customer loyalty, product quality has a positive effect on customer loyalty, and trust has a positive effect on customer loyalty.Keywords: Service Quality, Product Quality, Customer Trust and Loyalty.


2013 ◽  
Vol 433-435 ◽  
pp. 2409-2412
Author(s):  
Fei Xiong ◽  
Jin Yao

In mechanisms manufacturing environment, factory management level is always trying to achieve higher product yield to ship more quality product to the customers. In this paper, we will show the yield improvement based on cycle time reduces. Yield organization has established excellent systems for driving defect reduction. Established a clear set of core principles that would help drive a new way of driving cycle time improvement. Discuss the key findings captured through yield benchmarking activities. There are three core principles outlined above and the associated changes made in manufacturing to embrace these principles.


2021 ◽  
Vol 2 (6) ◽  
pp. 2143-2154
Author(s):  
Bambang Suwarno

The purpose of this study was to analyse the extent of Consumer-Based Brand Equity, Quality Product and Price affects customer loyalty at PT. Panasonic Gobel Indonesia Branch Medan and to compare the theories. The author examined by collecting data using a variety of library research, questionnaires are structured as an instrument to obtain quantitative data with Likert-scale systems are distributed to 68 respondents. Data was then compiled then processed and analysed using multiple regression analysis techniques (multiple regression) through the test of validity, test of reliability and test of classic assumptions. By using the tools of Statistical Product Service Solutions program (SPSS version 22.0). From the survey results revealed that the influential Consumer-Based Brand Equity, Product Quality and Price simultaneously with the results Fhitung 18,457 > Ftabel 2,75 and probability sig. 0,000 < 0,05 then reject ho (accept hi) that the Consumer-Based Brand Equity, Product Quality, Price simultaneously significantly influence Customer Loyalty PT. Panasonic Gobel Indonesia Branch Medan. The Consumer-Based Brand Equity there is for the partial influence on the Customer Loyalty with a value of thitung 3,980 > ttabel 1,997 and sig. 0,000 < 0,05, the Product Quality there is for the partial influence on the Customer Loyalty with a value of thitung 3,874 > ttabel 1,997 and sig. 0,000 < 0,05 and the Price there is for the partial influence on the Customer Loyalty with a value of thitung 2,483 > ttabel 1,997 and sig. 0,002 < 0,05. From the test results are also obtained by the value of determination R square is 0,564 or 56,4%. It is claimed that Consumer-Based Brand Equity, Product Quality and Price is an excellent way to improve Customer Loyalty and also the hypothesis that the authors proposed previously received.


POINT ◽  
2021 ◽  
Vol 3 (1) ◽  
pp. 83-94
Author(s):  
Agung Risaldo

Correctional as an institution that aims to form prisoners and inmates become the whole person, In its implementation implement two coaching programs which are the first coaching personality and the second coaching self-reliance development. In the development of self-reliance in correctional institutions in Indonesia, implementing programs aimed to improve the ability of the prisoners. Prisoners are trained to make a product whether it is goods or services, ranging from handicrafts, bakery, laundry, and Barber. But in the implementation of entrepreneurship programs such as handicrafts encountered a dead end because of not finding the right market. It takes a marketing strategy that is able to increase the selling power of the resulting product. Increase from product quality, product sales price, product distribution, and product promotion. The journal's writing aims to determine the right marketing strategy to increase the sales of convict production. The journal's writing uses a library of libraries aimed at identifying the right marketing strategy to increase the sales of convict production, and to determine the right strategy for product quality improvement.


2019 ◽  
Vol 7 (1) ◽  
pp. 17
Author(s):  
Diah Ernawati

<p><em>This study aims to determine and analyze the influence of product quality, product innovation and promotion to product purchase decision of "Hi Jack Sandals Bandung". Data were collected by questionnaire distribution technique using Likert scale. The population in this study was obtained from the transaction data "Hi Jack Sandals Bandung" in January-July 2017  amounted to 3,033 transactions.The sample wasselected using purposive sampling obtained100 respondents. Hypothesis testing in this study usingclassical assumption test, multiple linear regression with α 0,05, whichdetermine, fit test model (F test), and t test with SPSS Program version 24. The results of this study indicate that variables of product qualityand promotion have significant positive effectson purchase decision,while variable of product innovation has no significant effect on purchase decision. </em></p>


Author(s):  
Hani Ernawati ◽  
Fitriana Fitriana

Batik is a craft that has high artistic value and has become part of Indonesian culture that must be preserved. The level of consumer satisfaction towards Batik has to be known in order to understand the market demand, as well knowing the influencing factors that have postive effect on purchasing decision of Batik. The purposes of this study are (1) measures customer satisfaction levels of batik clothing, (2) measures the influence of quality product, brand, price, and access toward purchasing decision. Method - A total of 120 respondents were asked to rate their assesment on product quality, brand, price and access to get Batik clothes and their purchasing decision. Analysis of customer satisfaction used Consumer Satisfaction Index. The relationship between quality product, brand, price, and access toward purchasing decision determined by regression analysis Ordinary Least Square. The result of this study revealed that consumers’ satisfaction toward Batik clothes included in term of satisfied category. Brand and price had positive effect on purchasing decision, but product quality and accesibity didn’t.


2019 ◽  
Vol 15 (1) ◽  
pp. 46-53
Author(s):  
Paulus Wardoyo ◽  
Lia Kumalasari ◽  
Endang Rusdianti

The tight competition in the banking industry has forced management to be creative in serving customers. Research related to product quality and service excellence has been carried out, but the research is still done partially. This research combines product quality and service excellence by utilizing customer satisfaction as a mediating variable in the decision to save again. The study population was customers of deposit accounts. This study used purposive sampling, with a number of respondents as many as 125 people. The analysis technique used was structural equation modeling, the collected data was then processed using AMOS software. After analysis, all hypotheses submitted in this study were considered to be acceptable. The managerial implications of the research are that the service excellence provided by the bank must be a service that can truly be directly felt and provide benefits, so that it can satisfy customers.


Author(s):  
I Gede Wisnu Satria Chandra Putra

<p>Penelitian ini bertujuan untuk menganalisis pengaruh Kualitas Produk, Inovasi Produk dan Promosi Pemasaran terhadap Citra Merek. Objek penelitian ini adalah konsumen IKEA di Alam Sutra - Tangerang. Penelitian ini dilakukan pada 100 responden dengan menggunakan teknik convenience sampling dan menggunakan program SPSS 22.00 sebagai alat pengolahan data. Hasil penelitian ini menunjukkan bahwa secara simultan variabel Kualitas Produk, Inovasi Produk, dan Promosi Pemasaran memengaruhi Citra Merek IKEA di Alam Sutra - Tangerang. Ini telah dibuktikan dari hasil uji simultan (F). Namun hasil (t) uji parsial menunjukkan titik signifikan pada salah satu dari tiga variabel independen yang mendukung hipotesis. Oleh karena itu, asumsi yang diterima adalah, hanya ada pengaruh antara Inovasi Produk dengan Citra Merek IKEA di Alam Sutra – Tangerang</p><p><strong>Kata kunci</strong>: Kualitas Produk, Inovasi Produk, Promosi dan Pemasaran, Citra Merek</p><p> </p><p><em>This research aimed to analyze the influence of Product Quality, Product Innovation and Marketing Promotion to Brand Image. The object of this research is consumer of IKEA in Alam Sutra - Tangerang. This research was done to 100 respondents by using convenience sampling technique and using the SPSS 22.00 program as a data processing. The result of this research shows that simultaneously, the variable of Product Quality, Product Innovation and Marketing Promotion influence the Brand Image of IKEA in Alam Sutra - Tangerang. It has been proven from the result of (F) simoultant test.  However the result of (t) partial test shows significant point on one of three independent variables that supports the hipothesis. Therefore, the accepted assumption is, there is influence only between Product Innovation to Brand Image of IKEA in Alam Sutra – Tangerang</em><strong><em></em></strong></p><p><strong><em>Keywords: </em></strong><em> Product Quality, Product Innovation, Marketing Promotion, Brand Image<strong></strong></em></p>


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