Academic literature on the topic 'Improvement of mixing quality'

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Journal articles on the topic "Improvement of mixing quality":

1

Moore, J. M. "Quality improvement in rubber mixing." Total Quality Management 2, no. 3 (January 1991): 227–38. http://dx.doi.org/10.1080/09544129100000027.

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Tam, Vivian W. Y., X. F. Gao, and C. M. Tam. "Quality Improvement of Recycled Aggregate Concrete." Key Engineering Materials 302-303 (January 2006): 308–13. http://dx.doi.org/10.4028/www.scientific.net/kem.302-303.308.

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The developments of recycled aggregate concrete pressing hard in construction activities; however, the limitations on their applications had never being ended. The focus of this paper is: i) investigating the waste management strategy in construction; ii) proposing the two-stage mixing approach (TSMA) to improve the quality of RAC; and iii) experimenting the TSMA and assessing the benefits possibly gained. It proposes a new approach in mixing concrete, namely, the two-stage mixing method, to improve compressive strength of RAC and lower its strength variability. The replacement ratio from zero to thirty is under experiment on their compressive strength. Based upon the experimental results, improvements of 31 % in strength at 28 days with 30 % RA substitute was achieved. The effect can be attributably to the porous nature of the RA and the pre-mix process which can make some pores filled up resulting in a denser concrete and thus leading to higher strength when compared with the traditional mixing approach. Therefore, two-stage mixing approach can open up a wider application of recycled aggregate concrete.
3

A.-K. Mohamme, Abdul-Halim, Dhia El-Din M. Kassim, and Huda M. Hassan. "Quality Improvement of Spent Lubricating Oil." Iraqi Journal of Chemical and Petroleum Engineering 8, no. 3 (September 30, 2007): 31–35. http://dx.doi.org/10.31699/ijcpe.2007.3.6.

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The acidity of spent lubricant was treated using sodium hydroxide solution. The effect of three variables on the treatment have been studied . These are mixing time rangingfrom 5-35 minutes, NaOH to lubricant weight ratio ranging from 0.25-1.25 and weight percentage of NaOH ranging from 2-6 % . The experimental design of Box-Wilson method is adopted to find a useful relationship between the three controllable variables and the lowering in the acidity of the spent lubricant. Then the effective variables and interactions are identified using the statistical analysis(F-test) of three variable fractional design. The mathematical model is well represented by a second order polynomial. By the analysis of the experimental results, the best treatment conditions which achieved an acceptable acidity of the spent lubricant are 20 minutes mixing time , 1 weight ratio of NaOH to spent lubricant and 4.5 weight percentage of N aOH. At these condition the acidity of the lubricant decreases from 0.62 to 0.0602 mg KOH/g oil.
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Muhandri, Tjahja, Andika Putra Pratama, and Dase Hunaefi. "Aplikasi Seven Tools pada Perbaikan Mutu Roundness Bakso Unyil di PT X." MANAJEMEN IKM: Jurnal Manajemen Pengembangan Industri Kecil Menengah 14, no. 1 (September 9, 2019): 54–61. http://dx.doi.org/10.29244/mikm.14.1.54-61.

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The roundness quality of small meatballs, called Bakso Unyil, produced by PT X has been considered non-uniform and in-competitive. Hence, roundness quality improvement has been becoming one of the priorities for increasing consumer acceptance. This research aims to identify the causes of the poor quality of Unyil Meatballs roundness and find a solution. The improvement methods were: identification of the causes of low quality of roundness (Plan), improvement trials based on alternative solution (Do), and implementation of corrective actions (Action). A total of 60 meatballs samples were taken from three batches (for each batch of 20 samples). Ishikawa Diagram, and histogram were conducted and analysed. Implementation of alternative solutions to improve roundness quality that have been carried out as follows: 1). adjusting the amount of dough in mixing step, 2). the installation of temperature measuring equipment in the preheater, 3). Usage standardization of ice, 4). improvement of phosphate and salt mixing techniques, 5). removal of baking powder, and 6). turn of blades in mixing cake. Result showed that those improvements were not only improve the roundness quality of Unyil meatballs but also improve the smoothness and reducing wrinkle conditions on the surface of Unyil meatballs
5

Knaub, Ludmila. "Improvement of mixing processes in diesel engines." Technology audit and production reserves 3, no. 1(59) (June 30, 2021): 16–18. http://dx.doi.org/10.15587/2706-5448.2021.232050.

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The object of research is gas-dynamic vortex processes in heterogeneous polydisperse flows. One of the most problematic issues in engine building is the completeness of combustion and the rate of fuel burnout in the given coordinates on the allotted hourly interval in the combustion chamber. These indicators, in turn, determine stringent requirements for used fuels in terms of thermophysical parameters that affect sawing, evaporation and mixing with an oxidizer. In the course of the study, methods of mathematical modeling were used based on the theory of similarity. Methods have been developed for preparing a combustible mixture for detonation-free combustion of a cheap alternative fuel. A method for assessing the quality of spraying low cetane fuel is proposed. A mathematical model is obtained for calculating the change in the parameters of the quality of atomization and the differential characteristics of fuel injection. This is necessary for theoretical studies of gas-dynamic processes in additional power systems for diesel engines in an unsteady three-dimensional flow with variable parameters of a polydisperse flow of a combustible mixture. It has been proven that with a decrease in the camshaft rotational speed, the injection speed will be insufficient to achieve the required spray quality due to a decrease in the speed. This made it possible to redesign the additional system using a separate dual fuel supply. Research samples of an additional power supply system for the ЯМЗ–24 ОН diesel engine (Yaroslavl Motor Plant, Russia) have been developed. Comparative tests of the engine operation on stable gas condensate with the main fuel equipment and an additional system have been carried out. Oscillograms of the tests were obtained and analyzed. The research results provided the basis for the use of low cetane cheap gas condensate in diesel engines. This will improve the economic, power and environmental performance of the engines. Compared to standard cetane fuels, the price of fuel will decrease by 40 %, engine power will increase by 20 %, and the environmental performance of exhaust gases will decrease by 10–30 %.
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Hu, Zhan-Xiang, Chang-Chiun Huang, Amit Kumar Gope, and Chung-Feng Jeffrey Kuo. "Improvement in Injection Molding Quality Performance with Innovative Cyclone Mixers Used in Polypropylene with Spherical Silicon Dioxide Composites." Polymers 14, no. 22 (November 15, 2022): 4932. http://dx.doi.org/10.3390/polym14224932.

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This research proposes an innovative design of a new cyclone mixer for the quality of polymer materials, and it presents a systematic optimization model of process parameters for plastic injection molding. Thermo gravimetric analysis (TGA) and differential scanning calorimetry (DSC) were used to determine the appropriate thermal properties of processing in order to select appropriate control factors and level values for a Taguchi orthogonal array. The injection molding machine was used to make sample test pieces for tensile strength, hardness and impact strength. Significant factors were found by the signal-to-noise (S/N) ratio with an analysis of variation (ANOVA), and the single-quality optimal parameter combination was obtained. The reproducibility of the experiment was evaluated, and various quality weights were evaluated by principal components analysis (PCA). The multi-quality optimal parameter combination was found, and the comprehensive scores were compared. Finally, the process capability indices were combined with a multi-process capability analysis chart (MPCAC) to compare the process yields of cyclone mixing and screw mixing. The mechanical properties of products were evaluated to verify the performance of cyclone mixing and to provide perfect information for the injection molding quality performance of cyclone mixing and screw mixing. It was concluded that the overall quality of the cyclone mixing products is 42.72, and the total quality of the screw mixing products is 41.85. The total number of defects for the cyclone mixing is 9659 ppm, and that of the screw mixing is 10688 ppm. It can be seen that, for the overall product quality performance, cyclone mixing can be applied in the plastic injection molding process instead of screw mixing.
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Zhou, Zizhen, Tinglin Huang, Weijin Gong, Yang Li, Yue Liu, Shilei Zhou, and Meiying Cao. "Water Quality Responses during the Continuous Mixing Process and Informed Management of a Stratified Drinking Water Reservoir." Sustainability 11, no. 24 (December 11, 2019): 7106. http://dx.doi.org/10.3390/su11247106.

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Aeration and mixing have been proven as effective in situ water quality improvement methods, particularly for deep drinking water reservoirs. While there is some research on the mechanism of water quality improvement during artificial mixing, the changes to water quality and the microbial community during the subsequent continuous mixing process is little understood. In this study, we investigate the mechanism of water quality improvement during the continuous mixing process in a drinking water reservoir. During this period, we found a reduction in total nitrogen (TN), total phosphorus (TP), ammonium-nitrogen (NH4-N), iron (Fe), manganese (Mn), and total organic carbon (TOC) of 12.5%–30.8%. We also measured reductions of 8.6% and 6.2% in TN and organic carbon (OC), respectively, in surface sediment. Microbial metabolic activity, abundance, and carbon source utilization were also improved. Redundancy analysis indicated that temperature and dissolved oxygen (DO) were key factors affecting changes in the microbial community. With intervention, the water temperature during continuous mixing was 15 °C, and the mixing temperature in the reservoir increased by 5 °C compared with natural mixing. Our research shows that integrating and optimizing the artificial and continuous mixing processes influences energy savings. This research provides a theoretical basis for further advancing treatment optimizations for a drinking water supply.
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Yao, Lishuang, Xianzhu Tang, Zenghui Peng, and Li Xuan. "Improvement of alignment quality for FLC with mixing liquid crystal polymer." Journal of the Society for Information Display 23, no. 4 (April 2015): 170–75. http://dx.doi.org/10.1002/jsid.373.

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Danardono, Dominicus, and Ki Seong Kim. "Mixing Quality Improvement of a Coaxial Syngas Mixer by Adding Optimized Mechanical Tabs Using Three-Dimensional CFD Modeling." Applied Mechanics and Materials 699 (November 2014): 429–34. http://dx.doi.org/10.4028/www.scientific.net/amm.699.429.

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A coaxial gas mixer is designed for mixing air and synthesis gas or syngas as fuel. Three-dimensional computational models are harnessed to analyze and predict the influence of the mechanical tabs aspect ratio and number on the mixing characteristics and performance of the gas mixer. Attention is concentrated on the influence of mechanical tabs on the air-fuel ratio, pressure loss and mixing quality. The optimum design of the mechanical tab was realized with aspect ratio of 0.32 and 4 tabs with 45o tab angle. The coaxial gas mixer using the optimized mechanical tabs was realized with λ of 1.13 corresponding to pressure loss of 37.2 Pa at 100 m3/h air-flow rates and the coefficient of variation (CoV) of mixing was 0.29. The gas mixer with the mechanical tabs had much better mixing performance than the gas mixer without mechanical tabs with only relatively small increase in pressure loss.
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Vincent, Guillaume A., Thomas A. de Bruijn, Sebastiaan Wijskamp, Mohammed Iqbal Abdul Rasheed, Martin van Drongelen, and Remko Akkerman. "Characterisation and improvement of the quality of mixing of recycled thermoplastic composites." Composites Part C: Open Access 4 (March 2021): 100108. http://dx.doi.org/10.1016/j.jcomc.2021.100108.

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Dissertations / Theses on the topic "Improvement of mixing quality":

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Larsson, Stefan. "Mixing Processes for Ground Improvement by Deep Mixing." Doctoral thesis, KTH, Civil and Architectural Engineering, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3667.

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The thesis is dealing with mixing processes havingapplication to ground improvement by deep mixing. The mainobjectives of the thesis is to make a contribution to knowledgeof the basic mechanisms in mixing binding agents into soil andimprove the knowledge concerning factors that influence theuniformity of stabilised soil.

A great part of the work consists of a literature surveywith particular emphasis on literature on the processindustries. This review forms a basis for a profounddescription and discussion of the mixing process and factorsaffecting the process in connection with deep mixingmethods.

The thesis presents a method for a simple field test for thestudy of influential factors in the mixing process. A number offactors in the installation process of lime-cement columns havebeen studied in two field tests using statistical multifactorexperiment design. The effects of retrieval rate, number ofmixing blades, rotation speed, air pressure in the storagetank, and diameter of the binder outlet on the stabilisationeffect and the coefficient of variation determined byhand-operated penetrometer tests for excavated lime-cementcolumns, were studied.

The literature review, the description of the mixingprocess, and the results from the field tests provide a morebalanced picture of the mixing process and are expected to beuseful in connection to ground improvement projects and thedevelopment of mixing equipments.

The concept of sufficient mixture quality, i.e. theinteraction between the mixing process and the mechanicalsystem, is discussed in the last section. By means ofgeostatistical methods, the analysis considers thevolume-variability relationship with reference to strengthproperties. According to the analysis, the design values forstrength properties depends on the mechanical system, the scaleof scrutiny, the spatial correlation structure, and the conceptof safety, i.e. the concept of sufficient mixture quality isproblem specific.

Key words:Deep Mixing, Lime cement columns, Mixingmechanisms, Mixture quality, Field test, ANOVA, Variancereduction.

2

Yahiat, Feriel. "Analyse des mécanismes d’intensification du mélange et des transferts thermiques par combinaison de méthodes passives dans des écoulements internes tubulaires : application aux réacteurs chimiques continus et aux capteurs solaires." Electronic Thesis or Diss., Ecole nationale supérieure Mines-Télécom Lille Douai, 2023. http://www.theses.fr/2023MTLD0005.

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L’efficacité énergétique des composants et systèmes thermiques, l’amélioration et le développement de nouvelles technologies sont des enjeux majeurs aujourd’hui. Dans ce contexte général, les travaux de cette thèse s’inscrivent dans une perspective d’amélioration des performances thermiques et de mélange d’échangeurs-réacteurs multifonctionnels qui, plus que jamais, sont des composants clés. Pour atteindre cet objectif, une technique d'intensification passive a été explorée. Elle implique l'application de deux types de macro-déformations pariétales sur les parois d'un tube annulaire en écoulement laminaire. L’étude s’est tout d'abord concentrée sur la caractérisation des écoulements secondaires créés par chacune des déformations appliquées séparément sur l’intensification des transferts. Ensuite, une combinaison de déformations radiales successives et alternées sur la paroi externe, associées à une géométrie engendrant un mouvement de swirl sur la paroi interne a permis d'augmenter significativement le mélange, grâce à l'apparition d'advection chaotique dans l'écoulement. La compréhension des mécanismes physiques mis en jeux s’est appuyée sur une analyse numérique des champs locaux thermiques et hydrauliques, sur l’identification des structures tourbillonnaires, sur les sections de Poincaré, ainsi que sur la détermination des performances thermo-hydrauliques et de mélange au niveau global et local. Une évaluation expérimentale du comportement hydraulique a été aussi effectuée par le biais de la méthode de distribution des temps de séjour, ce qui a permis de valider en partie le modèle numérique choisi dans cette étude. Enfin, la dernière partie de l'étude a été consacrée à l'application des concepts d'intensification étudiés au cas d'un capteur solaire thermique à concentration
The energy efficiency of thermal components and systems, as well as the improvement and development of new technologies, are major challenges today. In this general context, the work of this thesis is aimed at improving the thermal performance and mixing of multifunctional heat exchanger-reactors, which are more than ever key components. To achieve this goal, a passive intensification technique has been explored, involving the application of two types of macro-wall deformations on the walls of a laminar flow annular tube. The study initially focused on characterizing the secondary flows created by each of the deformations applied separately in order to enhance heat transfer.Subsequently, a combination of successive and alternating radial deformations on the outer wall, coupled with a geometry that induces swirl motion on the inner wall, significantly increased mixing by promoting chaotic advection within the flow. The understanding of the underlying physical mechanisms relied on numerical analysis of local thermal and hydraulic fields, identification of vortical structures, Poincaré sections, as well as the determination of thermo-hydraulic and mixing performance at both global and local levels. An experimental evaluation of hydraulic behavior was also conducted using the residence time distribution method, partially validating the chosen numerical model in this study. Finally, the last part of the study was dedicated to the application of the intensification concepts studied to the case of a concentrated solar thermal collector
3

Cipollini, Irene <1976&gt. "Pet food: quality and quality improvement." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2008. http://amsdottorato.unibo.it/1058/1/Tesi_Cipollini_Irene.pdf.

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Today’s pet food industry is growing rapidly, with pet owners demanding high-quality diets for their pets. The primary role of diet is to provide enough nutrients to meet metabolic requirements, while giving the consumer a feeling of well-being. Diet nutrient composition and digestibility are of crucial importance for health and well being of animals. A recent strategy to improve the quality of food is the use of “nutraceuticals” or “Functional foods”. At the moment, probiotics and prebiotics are among the most studied and frequently used functional food compounds in pet foods. The present thesis reported results from three different studies. The first study aimed to develop a simple laboratory method to predict pet foods digestibility. The developed method was based on the two-step multi-enzymatic incubation assay described by Vervaeke et al. (1989), with some modification in order to better represent the digestive physiology of dogs. A trial was then conducted to compare in vivo digestibility of pet-foods and in vitro digestibility using the newly developed method. Correlation coefficients showed a close correlation between digestibility data of total dry matter and crude protein obtained with in vivo and in vitro methods (0.9976 and 0.9957, respectively). Ether extract presented a lower correlation coefficient, although close to 1 (0.9098). Based on the present results, the new method could be considered as an alternative system of evaluation of dog foods digestibility, reducing the need for using experimental animals in digestibility trials. The second parte of the study aimed to isolate from dog faeces a Lactobacillus strain capable of exert a probiotic effect on dog intestinal microflora. A L. animalis strain was isolated from the faeces of 17 adult healthy dogs..The isolated strain was first studied in vitro when it was added to a canine faecal inoculum (at a final concentration of 6 Log CFU/mL) that was incubated in anaerobic serum bottles and syringes which simulated the large intestine of dogs. Samples of fermentation fluid were collected at 0, 4, 8, and 24 hours for analysis (ammonia, SCFA, pH, lactobacilli, enterococci, coliforms, clostridia). Consequently, the L. animalis strain was fed to nine dogs having lactobacilli counts lower than 4.5 Log CFU per g of faeces. The study indicated that the L animalis strain was able to survive gastrointestinal passage and transitorily colonize the dog intestine. Both in vitro and in vivo results showed that the L. animalis strain positively influenced composition and metabolism of the intestinal microflora of dogs. The third trail investigated in vitro the effects of several non-digestible oligosaccharides (NDO) on dog intestinal microflora composition and metabolism. Substrates were fermented using a canine faecal inoculum that was incubated in anaerobic serum bottles and syringes. Substrates were added at the final concentration of 1g/L (inulin, FOS, pectin, lactitol, gluconic acid) or 4g/L (chicory). Samples of fermentation fluid were collected at 0, 6, and 24 hours for analysis (ammonia, SCFA, pH, lactobacilli, enterococci, coliforms). Gas production was measured throughout the 24 h of the study. Among the tested NDO lactitol showed the best prebiotic properties. In fact, it reduced coliforms and increased lactobacilli counts, enhanced microbial fermentation and promoted the production of SCFA while decreasing BCFA. All the substrates that were investigated showed one or more positive effects on dog faecal microflora metabolism or composition. Further studies (in particular in vivo studies with dogs) will be needed to confirm the prebiotic properties of lactitol and evaluate its optimal level of inclusion in the diet.
4

Cipollini, Irene <1976&gt. "Pet food: quality and quality improvement." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2008. http://amsdottorato.unibo.it/1058/.

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Today’s pet food industry is growing rapidly, with pet owners demanding high-quality diets for their pets. The primary role of diet is to provide enough nutrients to meet metabolic requirements, while giving the consumer a feeling of well-being. Diet nutrient composition and digestibility are of crucial importance for health and well being of animals. A recent strategy to improve the quality of food is the use of “nutraceuticals” or “Functional foods”. At the moment, probiotics and prebiotics are among the most studied and frequently used functional food compounds in pet foods. The present thesis reported results from three different studies. The first study aimed to develop a simple laboratory method to predict pet foods digestibility. The developed method was based on the two-step multi-enzymatic incubation assay described by Vervaeke et al. (1989), with some modification in order to better represent the digestive physiology of dogs. A trial was then conducted to compare in vivo digestibility of pet-foods and in vitro digestibility using the newly developed method. Correlation coefficients showed a close correlation between digestibility data of total dry matter and crude protein obtained with in vivo and in vitro methods (0.9976 and 0.9957, respectively). Ether extract presented a lower correlation coefficient, although close to 1 (0.9098). Based on the present results, the new method could be considered as an alternative system of evaluation of dog foods digestibility, reducing the need for using experimental animals in digestibility trials. The second parte of the study aimed to isolate from dog faeces a Lactobacillus strain capable of exert a probiotic effect on dog intestinal microflora. A L. animalis strain was isolated from the faeces of 17 adult healthy dogs..The isolated strain was first studied in vitro when it was added to a canine faecal inoculum (at a final concentration of 6 Log CFU/mL) that was incubated in anaerobic serum bottles and syringes which simulated the large intestine of dogs. Samples of fermentation fluid were collected at 0, 4, 8, and 24 hours for analysis (ammonia, SCFA, pH, lactobacilli, enterococci, coliforms, clostridia). Consequently, the L. animalis strain was fed to nine dogs having lactobacilli counts lower than 4.5 Log CFU per g of faeces. The study indicated that the L animalis strain was able to survive gastrointestinal passage and transitorily colonize the dog intestine. Both in vitro and in vivo results showed that the L. animalis strain positively influenced composition and metabolism of the intestinal microflora of dogs. The third trail investigated in vitro the effects of several non-digestible oligosaccharides (NDO) on dog intestinal microflora composition and metabolism. Substrates were fermented using a canine faecal inoculum that was incubated in anaerobic serum bottles and syringes. Substrates were added at the final concentration of 1g/L (inulin, FOS, pectin, lactitol, gluconic acid) or 4g/L (chicory). Samples of fermentation fluid were collected at 0, 6, and 24 hours for analysis (ammonia, SCFA, pH, lactobacilli, enterococci, coliforms). Gas production was measured throughout the 24 h of the study. Among the tested NDO lactitol showed the best prebiotic properties. In fact, it reduced coliforms and increased lactobacilli counts, enhanced microbial fermentation and promoted the production of SCFA while decreasing BCFA. All the substrates that were investigated showed one or more positive effects on dog faecal microflora metabolism or composition. Further studies (in particular in vivo studies with dogs) will be needed to confirm the prebiotic properties of lactitol and evaluate its optimal level of inclusion in the diet.
5

Michael, Gary E. "Introduction to Quality Improvement." Digital Commons @ East Tennessee State University, 2011. https://dc.etsu.edu/etsu-works/6432.

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Hernandez-Martinez, Francisco Gabriel. "Ground improvement of organic soils using wet deep soil mixing." Thesis, University of Cambridge, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.614153.

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Pang, Eva Y. "Developing a quality improvement taxonomy." Thesis, This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-03122009-040520/.

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Sousa, Sérgio Dinis Teixeira de. "Quality improvement measures in SMEs." Thesis, University of Birmingham, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.422289.

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O’Donnell, Barbara Ann. "Quality improvement, or quality care : an ethnographic study of frontline National Health Service staff engagement with a quality improvement initiative." Thesis, University of the West of Scotland, 2018. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.768251.

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Saroso, Dana Santoso. "Product quality improvement : a system approach /." St. Lucia, Qld, 2003. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe17433.pdf.

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Books on the topic "Improvement of mixing quality":

1

Besterfield, Dale H. Quality improvement. 9th ed. Upper Saddle River, N.J: Prentice Hall, 2013.

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Kelz, Rachel R., and Sandra L. Wong, eds. Surgical Quality Improvement. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-23356-7.

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Garrity, Susan M. Basic quality improvement. Englewood Cliffs,NJ: Prentice-Hall, 1993.

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Garrity, Susan M. Basic quality improvement. Englewood Cliffs, N.J: Regents/Prentice Hall, 1993.

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Jaehn, Al. Quality improvement team handbook. Atlanta, GA: Tappi Press, 1997.

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Edosomwan, Johnson Aimie. Productivity and quality improvement. Kempston, Bedford: IFS Publications, 1988.

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Dale, B. G. Quality improvement through standards. Cheltenham, England: Stanley Thornes, 1991.

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Mears, Peter. Quality improvement tools & techniques. New York: McGraw-Hill, 1995.

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Gilchrist, Warren E. Statistics: Quality improvement 1. Sheffield: Sheffield City Polytechnic, 1986.

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E, Bauer John, Duffy Grace L, and Westcott Russ 1927-, eds. The quality improvement handbook. Milwaukee, Wis: ASQ Quality Press, 2002.

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Book chapters on the topic "Improvement of mixing quality":

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Bekes, F., O. Anderson, P. W. Gras, R. B. Gupta, A. Tam, C. W. Wrigley, and R. Appels. "The Contributions To Mixing Properties of 1D HMW Glutenin Subunits Expressed in a Bacterial System." In Improvement of Cereal Quality by Genetic Engineering, 97–103. Boston, MA: Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-2441-0_12.

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Evans, Jeffrey, Daniel Ruffing, and David Elton. "Soil mixing." In Fundamentals of Ground Improvement Engineering, 149–92. London: CRC Press, 2021. http://dx.doi.org/10.1201/9780367816995-6.

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Leeds, Ira L., and Elizabeth C. Wick. "Surgical Quality Improvement: Local Quality Improvement." In Surgical Quality Improvement, 45–53. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-23356-7_5.

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Kruschke, Cheryl. "Quality Improvement." In Leadership Skills for Licensed Practical Nurses Working with the Aging Population, 95–107. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-69862-5_8.

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Murphy, Brendan Paul. "Quality Improvement." In Management and Leadership – A Guide for Clinical Professionals, 75–89. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-11526-9_6.

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Kyle, Kimberly W., Lara P. Nelson, and Rachel L. Chapman. "Quality Improvement." In Comprehensive Healthcare Simulation: ECMO Simulation, 171–76. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-53844-6_19.

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Carter, Jocelyn, and Christiana Iyasere. "Quality Improvement." In The Massachusetts General Hospital Guide to Medical Care in Patients with Autism Spectrum Disorder, 59–70. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-94458-6_5.

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Lambert, Michael J., Jonathan C. Huefner, and Curtis W. Reisinger. "Quality Improvement." In Handbook of Quality Management in Behavioral Health, 95–110. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/978-1-4615-4195-0_5.

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Neutze, Dana M., and Lindsay Stortz. "Quality Improvement." In Chronic Illness Care, 419–31. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-71812-5_35.

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Cobb, Mary In-Ping Huang, Ali R. Zomorodi, and L. Fernando Gonzalez. "Quality Improvement." In Cerebrovascular and Endovascular Neurosurgery, 41–48. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-65206-1_6.

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Conference papers on the topic "Improvement of mixing quality":

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Kasahara, Ryosuke, Izumi Itoh, and Hideaki Hirai. "Improvement of image quality by polarization mixing." In SPIE OPTO, edited by Yakov G. Soskind and Craig Olson. SPIE, 2014. http://dx.doi.org/10.1117/12.2037436.

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KNAP, V. "Effect of KOH Content in the Electrolyte on Corrosion Properties of PEO-Coated EV31 Magnesium Alloy." In Quality Production Improvement and System Safety. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902691-12.

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Abstract. This study analyzed the influence of electrolyte composition on the corrosion resistance of plasma electrolytic oxidation (PEO) coatings on EV31 magnesium alloy. An electrolyte solution was prepared by mixing 12 g/l Na3PO4 and various levels of KOH (1, 2, and 4 g/l). The PEO coating was produced with a direct current (DC) regime of 0.05 mA.cm-2 current density and a maximum voltage of 630 V. Electrochemical impedance spectroscopy was performed to assess the corrosion resistance after one hour exposure in 0.1 M NaCl. The results indicated that KOH content has a substantial effect on the morphology and corrosion resistance of the PEO coating and align with previous similar studies. The lowest porosity and highest polarization resistance were observed in the PEO coating prepared with 2 g/l of KOH in the electrolyte, resulting in the best corrosion resistance among the evaluated samples. The presence of only one capacitive loop in the Nyquist diagram and low polarization resistance Rp values of the samples with 4 g/l of KOH in the electrolyte indicated insufficient compactness due to high porosity of the coating.
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MALCANGIO, DANIELA, ANTONIO MELENA, LEONARDO DAMIANI, MATILDA MALI, and ALESSANDRA SAPONIERI. "NUMERICAL STUDY OF WATER QUALITY IMPROVEMENT IN A PORT THROUGH A FORCED MIXING SYSTEM." In WATER RESOURCES MANAGEMENT 2017. Southampton UK: WIT Press, 2017. http://dx.doi.org/10.2495/wrm170071.

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Yung, Derek, Ricky Pang, and Alex Chan. "Marine Deep Cement Mixing (Cutter Soil Mixing Technique)." In The HKIE Geotechnical Division 42nd Annual Seminar. AIJR Publisher, 2022. http://dx.doi.org/10.21467/proceedings.133.31.

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In recent years, marine deep cement mixing was widely adopted in Hong Kong as the ground treatment method for many mega reclamation projects. Compared to the traditional dredging method, the deep cement mixing method is renowned for its environmentally friendly and high-quality standard. The installation of the deep cement mixing works will generate less vibration to the surrounding and prevents bringing the toxic material into the open water. Also, the deep cement mixing can provide a stable foundation for the land formation and comparatively less settlement is expected. The Cutter Soil Mixing technique is a type of deep cement mixing method. It is developed based on the Hydrofraise Cutter technology, crushing the soil through two counter-rotary cutters, and simultaneously mixed with a slurry binder to achieve the contract required strength. This paper presents a recent ground improvement project in Hong Kong with the application of marine Cutter Soil Mixing technique. Several essential working parameters such as mixing factor, dosage design and the criterion to achieve the top of competent stratum for the Cutter Soil Mixing installation are discussed. In addition, real time supervision and monitoring system by using a set of sophisticated instruments are introduced. The environmental considerations and measures of the project are also presented in this paper.
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Esfahanian, V., F. Kowsary, M. Rezaei Barmi, and N. Noroozi. "Numerical Simulation of Fluid Mixing in the Ribbed Microchannels." In ASME 2008 First International Conference on Micro/Nanoscale Heat Transfer. ASMEDC, 2008. http://dx.doi.org/10.1115/mnht2008-52178.

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Micromixers have received much interest as essential part of microfluidic devices. Therefore, enhancement of mixing quality has gained a lot of attention in recent years. In the present study, improvement of mixing quality for two different miscible liquids is considered in passive micromixers. Numerical approach is based on a second order finite volume Jameson scheme in order to solve two dimensional incompressible Navier-Stocks and mass transport equations by implementing artificial compressibility. Mixing quality is influenced by Reynolds and Schmitt numbers as well as size and location of the ribs. Diffusion mechanism has the main role for mixing in micro scale fluid flows; therefore, increasing Peclet number leads to extend mixing time. In order to enhance mixing quality, ribs are used in different locations through the microchannel which cause more instability in the fluid flow and leads to a better mixing. The Reynolds number is constant while the Schmitt number is in the range of 10 to 100. However, in order to laminar fluid flow, ribs just have an influence near itself and faraway, mixing mechanism return to earlier state. Therefore, in low Reynolds numbers they have no effective influence. When Reynolds number increase, flow instability that is created by different ribs leads to a better mixing.
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Tan, S. Chloe, R. Abdullah, N. S. Mahmud, and D. U. Gadot. "Effluent Treatment System Improvement via Process Optimization." In SPE Water Lifecycle Management Conference and Exhibition. SPE, 2024. http://dx.doi.org/10.2118/219045-ms.

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Abstract Objectives/Scope Terminal M, located in Sarawak, Malaysia has been struggling to meet Effluent Discharge Quality (EDQ) post EDQ Improvement Project since 2014 despite operating with chemical injection. The facility is designed with a simple effluent treatment system consisting of skim tank, Induced Gas Floatation (IGF) and holding basin prior to final discharge. Upon improvement project, de-oiler was introduced as a coagulant agent to aid the oil in water separation. However, the operation is still experiencing challenges in meeting effluent quality due to inefficient IGF. This paper described the collaborative efforts between operations and Centre of Excellence in improving effluent discharge quality via process optimization and subsequently resolving the prolonged pain points experienced by operations in effluent water handling. Methods, Procedures, Process Water Practices (WAPs) is a guided document that provides guidance and instructions on produced water treatment operations. It includes setting key performance indicators (KPls) and defining the practices for performance monitoring and control developed in-house. The approach is based on measurements conducted across a four-tiered hierarchy, defining specific elements at each level in the plant operations’ organization. The WAPS approach also includes periodic third-party reviews to assess self-compliance and identify areas of improvement and cost optimization. WAPS implementation review identified gaps at Induced Gas Floatation (IGF) where the OIW reading at inlet and outlet of IGF was found no or minimal variance. Implementation review team recommended investigation to be conducted to assess the efficiency of IGF. The gaps were further verified with noticeable oily layers on the surface of both holding basin and Effluent Out Fall (EOF), downstream of IGF with stable effluent flow. A hypothesis was made on inadequate chemical mixing due to laminar flow at the injection point upstream of the IGF unit. A field trial was proposed to relocate the de-oiler injection point further upstream at Free Water Knock Out (FWKO) before the control valve to allow better mixing and retention time for the chemical to react with the produced water. Results, Observations, Conclusions The field trial shown a significant improvement in OIW reading at IGF outlet, with a 51% OIW improvement from 77ppm to 38ppm while effluent quality at final discharge point has improved from 29ppm to 25ppm, 15% improvement. The trial was conducted for seven (7) scenarios which includes baseline monitoring, relocation of injection point, dosage optimization and combinations of dosage and injection point improvement. The trial concluded that three (3) key factors affecting quality of effluent discharge are process condition mainly on the volume of produced water received from upstream feeder, secondly location of the injection point and thirdly on dosage of chemical injection. The volume of produced water is directly proportional to dosage changes of chemical injection. The value creations from this trial are mainly HSE sustenance and cost optimization opportunity which the driver will be implemented to meet company aspiration. Novel/Additive Information This collaborative effort has contributed to Effluent Discharge Quality (EDQ) improvement at Terminal M which has been a prolonged pain point from the past. With simple tweaks to the fundamental of process principle, the discharge quality has been successfully improved with none or minimal CAPEX investment.
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Solehati, Nita, Joonsoo Bae, and Agus Pulung Sasmito. "Numerical Investigation of Multi-Scale Mixing in Microchannel T-Junction With Wavy Structure." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-93103.

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Mixing in chemical microreactors is a multi-scale processes as the transport mechanisms occur at different length scales. The small scale mixing depends mainly on molecular diffusion which causes conventional microchannel T-junction has poor mixing quality. To improve the quality, one can utilize secondary flow generated by wavy structure to enhance chaotic mixing. To gain better understanding of the interplay of transport mechanism, we develop numerical model for mixing in micro-channel T-junction with wavy structure. To ensure robust and accurate solutions, several discretization methods and mesh sizes were tested and compared. It is found that the solutions are sensitive to the Reynolds; huge amount of mesh (>107) is required to resolve small molecular diffusion and chaotic mixing especially at high Schmidt number, whilst relatively lesser mesh is found to be sufficient for conventional T-junction. Further, parallelization is found to be beneficial to expedite the computation, albeit the speed is not linear with the number of the processors. The mixing quality of T-junction with wavy structure is then compared with that of conventional T-junction counterpart. It is noted that up to 50% improvement of mixing quality is achieved with wavy structure which has potential for several applications.
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SO, Sunny TC, Leo CY SHU, Linda YW IU, and Lawrence KW SHUM. "Model Deep Cement Mixing Specification for Hong Kong." In The HKIE Geotechnical Division 43rd Annual Seminar. AIJR Publisher, 2023. http://dx.doi.org/10.21467/proceedings.159.18.

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Reclamation outside Victoria Harbour is one of the multi-pronged approaches of increasing land supply in Hong Kong and tops the agenda of the current-term Government of HKSAR in order to build up a land reserve in the long run to solve the housing problem. The Government has been proactively pressing forward studies for such new reclamation projects as in Lung Kwu Tan and Ma Liu Shui, in addition to those for Kai Yi Chau Artificial Islands and North Lantau. This calls for cost-effective planning, design and construction practices of reclamation works in Hong Kong in order to expedite land production in meeting the vision set in the Hong Kong 2030+. The Geotechnical Engineering Office (GEO) of the Civil Engineering and Development Department (CEDD) has taken steps to work hand in hand with practitioners, academia and relevant government departments to consolidate the experience gained from the recent reclamation projects in the territory to enhance the design and construction practices. Focus has been put not only on enhancing the quantity, speed, efficiency and quality of reclamation works, but also promoting the adoption of the latest smart technologies and green construction materials to set a new norm for sustainable development. The first deliverable is the model specification for deep cement mixing (DCM), a prevailing ground improvement technique used in non-dredged reclamation. This paper discusses the rationales and considerations behind the enhancements on the DCM construction specification that could benefit future reclamation projects, and moreover, the planning of and actions taken by the GEO in developing a state-of-the-art while practical local design and construction guide for different reclamation methods and ground improvement techniques.
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Chin, Ju S., Nader K. Rizk, and Mohan K. Razdan. "Study on High Liquid Pressure Internal Mixing Prefilming Airblast Atomization." In ASME 1998 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/98-gt-442.

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The objective of the present investigation is to provide better understanding of the hybrid atomization process in an effort to support the development of fuel injectors for future high performance / low emissions gas turbine combustors. A specially designed atomizer that incorporated two swirling air streams, and a prefilming device located upstream of the atomizer exit section was tested under a combined hybrid airblast and high liquid pressure mode. The experiments focused on evaluating the effects of several operating parameters, in particular the air / liquid ratio, on the atomization quality. The results demonstrated that, to accurately determine the role of the air / liquid ratio in the atomization process, the effects of liquid injection velocity and the relative air–liquid velocity need to be separated from that of the air / liquid ratio. Two approaches were used in the present investigation to deduce the actual effect of the air / liquid ratio: first, by reducing the air swirler flow areas, and second, by increasing the number of liquid injection holes. Both approaches enabled changing the air / liquid ratio without changing the air or liquid velocities. The atomization results indicate that changes in swirler flow area produce a stronger effect of the air / liquid ratio than that when liquid hole number was changed. For fixed air / liquid ratio, better atomization quality was achieved when both levels of air flow and liquid flow were high compared to when both flow rates were low. Also, the atomizer demonstrated a continuous improvement in atomization quality under very high air pressure drop, indicating a better utilization of the air kinetic energy over conventional airblast atomizers. The other important observation was that the dependency of the atomization process on air velocity was not constant, but rather changed with liquid pressure, air flow rate, and air pressure drop.
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Tompkin, Wayne R., Kenneth R. MacDonald, and Robert W. Boyd. "Passive one-way aberration correction using four-wave mixing." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1988. http://dx.doi.org/10.1364/oam.1988.fy6.

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We have demonstrated a passive device that removes in one pass the aberrations incurred by a light wave in propagating through a distorting medium.1 Light from the extended object of interest and a nearby reference point source pass through a thin phase aberrator located near the entrance pupil of the optical system. By imaging the aberrator into the nonlinear medium, the image-bearing and reference wavefronts at the nonlinear medium contain information about the aberrator only in identical exponential phase factors, which cancel out in the nonlinear polarization induced in the nonlinear medium. Consequently, the wave generated by this nonlinear polarization is free of the effects of the aberration and can be split off to recover the unaberrated image. This aberration-correction device is an implementation using real-time degenerate four-wave mixing of an idea advanced by Goodman et al.2 One example of an application of this method is the improvement in the quality of astronomical observations by removing some of the effects of atmospheric turbulence. A significant component of the distortion incurred by astronomical images occurs at the interface between the telescope structure itself and the surrounding atmosphere. The principal hindrance to implementing this scheme is the difficulty of nonlinear mixing of light which is weak and temporally or spatially incoherent, or both, as in the case of starlight.

Reports on the topic "Improvement of mixing quality":

1

Wanner, Richard T., and Joseph Franceschi. Business Process Reengineering for Quality Improvement. Fort Belvoir, VA: Defense Technical Information Center, July 1995. http://dx.doi.org/10.21236/ada310561.

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Urban, Nicole. Reaching Rural Mammographers for Quality Improvement. Fort Belvoir, VA: Defense Technical Information Center, October 1998. http://dx.doi.org/10.21236/ada359856.

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Urban, Nicole. Reaching Rural Mammographers for Quality Improvement. Fort Belvoir, VA: Defense Technical Information Center, October 1999. http://dx.doi.org/10.21236/ada381692.

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Hassan, N. M. Mixing quality characterization in separations process tanks. Office of Scientific and Technical Information (OSTI), January 1995. http://dx.doi.org/10.2172/93610.

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Huang, Cihang, Yen-Fang Su, and Na Lu. Self-Healing Cementitious Composites (SHCC) with Ultrahigh Ductility for Pavement and Bridge Construction. Purdue University, 2021. http://dx.doi.org/10.5703/1288284317403.

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Cracks and their formations in concrete structures have been a common and long-lived problem, mainly due to the intrinsic brittleness of the concrete. Concrete structures, such as rigid pavement and bridge decks, are prone to deformations and deteriorations caused by shrinkage, temperature fluctuation, and traffic load, which can affect their service life. Rehabilitation of concrete structures is expensive and challenging—not only from maintenance viewpoints but also because they cannot be used for services during maintenance. It is critical to significantly improve the ductility of concrete to overcome such issues and to enable better infrastructure quality. To this end, the self-healing cementitious composites (SHCC) investigated in this work could be a promising solution to the aforementioned problems. In this project, the team has designed a series of cementitious composites to investigate their mechanical performances and self-healing abilities. Firstly, various types of fibers were investigated for improving ductility of the designed SHCC. To enhance the self-healing of SHCC, we proposed and examined that the combination of the internal curing method with SHCC mixture design can further improve self-healing performance. Three types of internal curing agents were used on the SHCC mixture design, and their self-healing efficiency was evaluated by multiple destructive and non-destructive tests. Results indicated a significant improvement in the self-healing capacity with the incorporation of internal curing agents such as zeolite and lightweight aggregate. To control the fiber distribution and workability of the SHCC, the mix design was further adjusted by controlling rheology using different types of viscosity modifiers. The team also explored the feasibility of the incorporation of colloidal nano-silica into the mix design of SHCC. Results suggest that optimum amounts of nano-silica have positive influence on self-healing efficiency and mechanical properties of the SHCC. Better hydration was also achieved by adding the nano-silica. The bonding strength of the SHCC with conventional concrete was also improved. At last, a standardized mixing procedure for the large scale SHCC was drafted and proposed.
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Garcia-Chang, Santana. Storm Water Individual Permit Water Quality Improvement. Office of Scientific and Technical Information (OSTI), July 2013. http://dx.doi.org/10.2172/1089477.

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Houston, Archester, and Steven L. Dockstader. A Total Quality Management Process Improvement Model. Fort Belvoir, VA: Defense Technical Information Center, December 1988. http://dx.doi.org/10.21236/ada202154.

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Houston, Archester, and Steven L. Dockstader. A Total Quality Leadership Process Improvement Model. Fort Belvoir, VA: Defense Technical Information Center, December 1993. http://dx.doi.org/10.21236/ada278327.

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Lewis, R. E., and N. L. Moore. Linking quality improvement and energy efficiency/waste reduction. Office of Scientific and Technical Information (OSTI), April 1995. http://dx.doi.org/10.2172/61150.

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Knupp, P. Target Formulation and Construction in Mesh Quality Improvement. Office of Scientific and Technical Information (OSTI), October 2019. http://dx.doi.org/10.2172/1571722.

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