Manufacture Of New Products Research Articles

Copper recovery by solvent extraction for nanoparticle synthesis from waste motherboards.

Printed circuit boards, which make up part of waste from electrical and electronic equipment, contain elements that can be economically reused, such as copper, silver, gold, and nickel, as well as metals that are harmful to the environment and health, such as lead, mercury, and cadmium. Thus, through recycling this scrap, materials that would otherwise be discarded can be reinserted as secondary raw materials to produce new consumer goods through urban mining. In this context, the synthesis of nanoparticles shows promise as it allows the reinsertion of these materials in the manufacture of new products. Therefore, this study used obsolete computer motherboards as a secondary material to obtain copper to produce nanoparticles of this metal. From a solution based on the leach liquor of this scrap, a purification route using solvent extraction was defined and applied to the real leach liquor. Applying the hydroxyoxime extractant at a dilution of 20% (v/v) in kerosene, A/O of 1/1, 298K, and 0.25h of contact during extraction, and stripping in H2SO4 (2M), 298K, 0.25h, W/O ratio of 3/1, and two theoretical countercurrent stages, a solution containing more than 95% of the copper in the leach liquor could be obtained with less than 1% of contaminants. From this purified liquor, nanoparticles containing copper and metallic copper oxides and hydroxides were produced, with an average size of 84nm, at pH 11, 3h of hot stirring, volume of 0.015 L of ascorbic acid (0.50M) and 0.015 L of precursor solution (0.03M Cu), and temperature (343K).

Unlocking the potential of sorghum: a comparative study exploring the physical, chemical, technological, and digestibility properties of new cultivars from Mozambique

SummaryThis study aimed to evaluate the physical, chemical, technological, and digestibility of three sorghum cultivars (Mucuvea, Otela, and Tocole) and compared them to a Local variety (criola) grown in Mozambique. Thousand‐grain weight, hectolitre weight, and colour were determined in the grains. Proximal composition, antinutritional factors, starch and protein digestibility, and antioxidant activity were analysed in flours; starch was isolated and characterised by its physical, chemical, morphological, and digestibility properties. The grain characterisation varied among the cultivars compared to the Local variety, but not between the cultivars. The cultivars showed lower amounts of protein, lipids, free phenolics, tannin, soluble protein, digestibility of starch flour and proteins, and higher flavonoids and antioxidant activity. A high content of amylose (~37%), glycaemic index (~82), Tp (64.83 °C), and resistant starch (57.73%) were verified in all cultivars. The peak viscosity of Local variety was higher (343.25 RVU) than the other cultivars, while the breakdown (less than 106.54 RVU) of the cultivars was significantly lower than Local (182.25 RVU). Such data suggest great potential use of Local variety in bakery products and the cultivars in products that require greater viscosity. These results will reinforce the research, production, and manufacture of new products in Africa, especially in sorghum‐producing countries.

Produção sustentável de argamassa com substituição parcial do agregado miúdo por embalagens cartonadas trituradas

ABSTRACT Post-consumer carton packaging has the potential to be utilized as raw material in the manufacturing of new products. This research analyzed the performance of partially replacing fine aggregate with Powdered Carton Packaging Waste (PCPW) in mortar development through of collection, preparation, and milling of carton packaging, as well as the characterization of raw materials. Reference and experimental compositions were defined, followed by the execution of technological tests and analysis of the results. X-Ray Fluorescence (XRF) and Scanning Electron Microscopy (SEM) were used to characterize the by-product, PCPW, through chemical analysis. A reference ratio of 1:6 between the volume of cement and fine aggregate was adopted, while Experimental Compositions were determined with substitutions of 5%, 10%, and 15% of the aggregate volume with PCPW. These compositions were molded and tested using five cylindrical specimens per composition. The produced material exhibited consistency within normative parameters. The strengths of the three compositions with replacement fell within the range of 7.57 MPa, 6.52 MPa, and 6.07 MPa, respectively. Water Absorption by Immersion showed satisfactory results. SEM analysis of the fractured surfaces revealed the presence of empty spaces and microfissures in the samples with the highest percentages of PCPW.

ON THE MANAGEMENT OF AN INDUSTRIAL ENTERPRISE BASED ON POTENTIAL INDICATORS

The article is devoted to the consideration of potential indicators as tools of operational and strategic management. Within the framework of operational management, it is necessary to maintain the achieved level of development, and strategic management should be aimed at developing the capabilities of the enterprise, its potential. The operational and strategic parameters of ensuring the competitiveness of the enterprise are identified. To build the indicators of potential, strategic structures of the enterprise have been formed, showing a quantitative representation of the economic, technological and organisational structures of the enterprise (in the form of grouped costs in a certain way). Based on the use of strategic structures, the actual and target values of the enterprise’s potential as criteria for assessing the level of development in economic, technological and organisational terms are formed. The use of strategic structures makes it possible to carry out operational balancing of the company’s expenses when the actual costs exceed the planned level, as well as to change the company’s structure during the transition to the manufacture of new products or for the purposes of crisis management.

Nexam Chemical receives pioneering patent in PP recycling

On July 18, 2023, Nexam Chemical announced it had received the first patent in Reactive Recycling™ technology. The patent covers a method that makes it possible to better recycle and thus increase the use of recycled polypropylene. The method works great for mechanical recycling and will reduce the use of virgin plastic in the manufacture of new products.

A continuum large-deformation theory for the coupled modeling of polymer–solvent system with application to PV recycling

Nowadays recycling of photovoltaics (PV) using the solvent method is becoming a very hot topic as massive products deployed in the last century have approached the end of their service lifetime. The key problem in the recycling of end-of-life PV modules is the nondestructive recovery of precious silicon wafers for the manufacturing of new products. However, the attempt to comprehensively understand the polymer–solvent system in the PV recycling process is completely lacking. In this work, a thermodynamically consistent large-deformation theory is proposed to model the coupled behavior of this system. The development of continuum theory accounts for the solvent permeation, swelling and elastic deformation, as well as shrinking effects due to the initial crosslinking of ethylene-co-vinyl acetate (EVA). The crosslinking of EVA influences the stiffness of the polymer network, and interacts with the diffusive kinetics of solvents. Also, given the effects of mechanical constraint, the two-way coupling between the EVA deformation and solvent diffusion is established on the basis of thermodynamic arguments. The proposed modeling method is firstly applied to simulate the swelling experiments of cylindrical EVA samples in solvents Toluene, Tetrahydrofuran, and Octane, and good agreement has been achieved between the numerical prediction and available testing data. Then the second example demonstrates the capability of this modeling framework to describe the influences of initial crosslinking and mechanical constraints on the time history evolution of swelling and elastic deformation. Finally, the complete PV laminate in the 3D setting is modeled for the investigation of solvent penetration induced deformation in the silicon cell layer during the PV recycling process, and comparison has been made to showcase the spatial distribution of maximum principal stress of the silicon cell layers in solvents with different solubility parameters and molar volumes. With this computational tool at hand, it is possible to provide guidance to the design of suitable experimental procedures for the structure-intact recovery of silicon wafers in PV recycling with the solvent method.

Consumers’ acceptance of recycled products: Instrument development and pilot testing

One possible solution to the issue of excessive use of natural resources is the use of recycled materials in the manufacturing of new products. Aside from the extent to which recycled materials are integrated into industrial processes, a key question to investigate is whether consumers actually value such efforts and products. Therefore, the main objective of this article is to create and test a instrument to measure customer acceptance of recycled products. A pilot test with a sample totalling 168 individuals was conducted to achieve this goal. By using an exploratory factor analysis, a final structure of three factors describing consumers' acceptance of recycled products was discovered: 1) perceived environmental benefit, 2) perceived credibility of 3) price perception.

Environmental Benefit of Eco-Industrial Development: Effective Approach of Europe to Climate Change and Mitigation

Recent rapid progress in industrialization and urbanization has made scientists to explore a green development so that environmental bodies should not be contaminated and living things should not face health threat. Even though industries not related to environmental concern should also develop a green way in their production. Eco-Industrial Parks are evaluated in several comparative studies, generally in advanced countries. An important message is that EIPs concurrently need advances in business relations, among several such as corporations, and resource flows. The profits for all are comprised enterprises, who take steps for reduction in the net waste production and/or resource consumption. The implementation of advanced technologies is required towards resource conservation. Another important matter is the manufacturing of new products and the urbanized zoned should be provided the environmental services. Concerning these all things, this paper deals with benefits of eco-industrial parks and sustainable development in the future. This paper also deals with how eco-industrial parks are beneficial for Europe and developing countries. Findings from previously published literature demonstrated that eco-industrial parks play significant role for eco-environment friendly sustainable development.

Photocatalytic Pt/Ag3VO4 micromotors with inherent sensing capabilities for corroding environments

Autonomous self-propelled micromachines based on semiconductors are at the forefront of environmental pollutants degradation research to palliate the effects of the contamination arising from the constant manufacturing of new products. Nonetheless, testing these micromotors with real-life products is almost an unexplored field, limiting the degradation of pollutants to single-component aqueous solutions or suspensions at the laboratory scale, which hinders the translation of these micromachines into useful systems. Herein, Ag3VO4 has been devised as a micromotor by an asymmetric deposition of a thin layer of Pt, giving rise to Pt/Ag3VO4 micromotors (Janus particle). Their motion capabilities have been demonstrated under UV light in fuel-free conditions. Their photocatalytic performance at laboratory scale has been confirmed for the degradation of Rhodamine B while, as a first approximation of a real-life application, the degradation of an energy drink has also been tested. During this latter exploration, the Pt/Ag3VO4 micromotors were corroded by the citric acid present in the pollutant, releasing Ag nanoparticles into the media. As a proof of concept, the position of the generated Ag nanoparticles’ surface plasmon resonance absorption maximum has been demonstrated to show a dependency on the concentration of citric acid.

New Product Development Using Lean Startup Methodology (Case Study : The Atsomee)

Fashion itself is one of the dominant sub-sectors in contributing to the economy in Indonesia. The Atsomee is a new player in the sustainable fashion industry selling clothing for women. With so many competitors in the same field, The Atsomee must continue to pursue and innovate. The need for new products is one of the crucial things in running a business in the fashion sector. In addition, the existence of product variants is very much needed for The Atsomee because it has spent several months without launching a new product. This study uses the Lean Startup method in developing its new product. The use of this method involves the customer/prospective customer in determining product development with the hope that the resulting product is in accordance with the needs and desires of the customer itself. This study uses interviews and questionnaires to determine product validation, market validation, and also business validation. The results obtained will then be used as the main data for the manufacture of new products for The Atsomee.

Production planning optimisation in a sustainable hybrid manufacturing remanufacturing production system

In this study, we investigate a production planning problem in hybrid manufacturing remanufacturing production system. The objective is the determine the best mix between the manufacturing of new products, and the remanufacturing of recovered products, based on economic and environmental considerations. It consists to determine the best manufacturing and remanufacturing plans to minimising the total economic cost (start-up and production costs of new and remanufactured products, storage costs of new and returned products and disposal costs) and the carbon emissions (new products, remanufactured products and disposed products). The hybrid system consists of a set of machines used to produce new products and remanufactured products of different grades (qualities). We assume that remanufacturing is more environmentally efficient, because it allows to reduce the disposal of used products. A multi-objective mathematical model is developed, and a non dominated sorting genetic algorithm (NSGA-II) based approach is proposed. Numerical experience is presented to study the impact of carbon emissions generated by new, remanufactured and disposed products, over a production horizon of several periods.

Pengembangan wirausaha olahan rumahan cemilan seker (Seblak Kering) di Kampung Bunut Babakan Desa Bangbayang

The pandemic caused a decline in performance from the demand side which ultimately had an impact on the supply side, namely termination of employment and the threat of default in credit payments. MSMEs in Bangbayang village also experienced a large decline in product sales. The average decline in sales of MSMEs in Bangbayang Village reached 51%. And operating profit of 51%. This resulted in a 69% decrease in capital. The purpose of this community service activity is to help SMEs in Bangshadow Village, especially MakaroniQue home-processed entrepreneurs by making new products to increase income. The method used in this activity is the lecture method and direct practice of making MakaroniQue business innovations. The implementation of the service has succeeded in developing a new product, namely dry seblak (SEKER). The program ran smoothly and received feedback as expected. The sale of new products shows potential business opportunities with increasing sales every week. Achievement in the manufacture of new products, sales increased by about 44 pcs compared to the initial sales which could only sell 20 pcs.

Optimization of Parameters Using Response Surface Methodology to Develop a Novel Kefir-Like Functional Beverage from Cheese Whey Enriched with Myrtle Juice

Whey, liquid wastewater from cheese production, is one of the sources of dietary protein and lactose that are still largely unused for human consumption. It is only in recent years that it has aroused the interest of industries and sought as a valuable raw material and thus represents an opportunity for the manufacture of new products. The manufacture of fermented whey drink requires the mixing of whey with fruit juice or an aromatic plant to improve its organoleptic properties and acceptability. Myrtle, an aromatic medicinal plant, known for its health benefits is not well exploited for making dairy products. This is the first report on the development of kefir-myrtle beverage. Three factors were optimized (whey permeates (%), myrtle’s juice (%), and kefir grains as inoculum (%)) using a central composite design with response surface methodology. The analyses showed that the number of lactic acid bacteria (LAB) and yeast cells varied from 5.4 to 9.2 log10 CFU/mL and from 4.3 to 6.2 log10 CFU/mL, respectively. A decrease in pH and an increase in the total polyphenol content and antioxidant activity were observed. The analysis of variance indicated the goodness of fit of the model with R2 from 0.827 to 0.966. The absolute average deviation values of each model were low and ranged from 1.61% to 4.23%. The optimized fermented kefir whey beverage accomplished an overall acceptability of 5.41 (1 to 9 preference scale) and a high number of LAB cells (8.53 log10 CFU/mL). The viability of LAB and yeast cell was maintained at 7.61 and 6.19 log10 CFU/mL, respectively, after 14 days of storage.

Influence of the technical level of production on the possibility of manufacturing of new products

A methodological approach to assessing the influence of the technical level of production on the possibility of manufacturing of new products is considered. An integral indicator of the technical level is proposed, which is determined on the basis of an analysis of the potential effectiveness of the work performed by the organization throughout all stages of the product life cycle. Keywords: new products, technical level of production, methodology of complex activities. yudinorel@gmail.com

Continual learning of neural networks for quality prediction in production using memory aware synapses and weight transfer

Deep learning-based predictive quality enables manufacturing companies to make data-driven predictions of the quality of a produced product based on process data. A central challenge is that production processes are subject to continuous changes such as the manufacturing of new products, with the result that previously trained models may no longer perform well in the process. In this paper, we address this problem and propose a method for continual learning in such predictive quality scenarios. We therefore adapt and extend the memory-aware synapses approach to train an artificial neural network across different product variations. Our evaluation in a real-world regression problem in injection molding shows that the approach successfully prevents the neural network from forgetting of previous tasks and improves the training efficiency for new tasks. Moreover, by extending the approach with the transfer of network weights from similar previous tasks, we significantly improve its data efficiency and performance on sparse data. Our code is publicly available to reproduce our results and build upon them.

Indonesian New Exporter (INE) as a Training and Development Model Micro Small and Medium Enterprises (MSMEs) in The Field of Handicrafts

The Indonesian New Exporters (INE) program is a model for export development through training from upstream to downstream. Indonesia's handicraft export activities during the Covid-19 pandemic experienced a significant decline. A good strategy is needed in its development so that the handicraft sector MSMEs can enter the export market. This study aims to create a new exporter solution in the handicraft business sector. The method used in this paper is descriptive qualitative through learning by providing knowledge training and practice. The training includes the manufacture of new products, branding, displays, pricing, negotiations, delivery methods, completeness of export documents, and promoting handicraft products at the International Craft Exhibition. Material by preparing superior craft products according to global market demand. This research involved 20 MSMEs participants in Bantul Regency, Yogyakarta Special Region. MSMEs participants gain experience in preparing new handicraft products to export sales methods. The creation of handicraft products is adjusted to the growing trend in the world of export destinations. The results show that the training provided can increase the number of new entrepreneurs in the handicraft sector. New entrepreneurs who understand the mechanism of handicraft export can be formed correctly. INE offers clear directions for coaching and business development in the export-oriented handicraft sector. INE provides support and support in improving the community's welfare and economy and increasing the State's foreign exchange.

Analysis of the Decline in the Competitiveness of New Products in Beijing's High-tech Manufacturing Industry

Clearly stated in the Fourteenth Five-Year Plan for 2035, in order to achieve major breakthroughs in core technologies, one must enter a target innovative country at the forefront, but also insist on the proposed innovation-driven development and adhere to innovation and modernization in our country. With the deepening Sino-US trade friction, the export of various industries in China is facing pressure from the US against globalization, industrial software, and chip manufacturing, which has simultaneously hit China hard through industry development. Data analysis reveals that Beijing's high-tech manufacturing of new products and export earnings decreased year by year, but the main reason for the decline is the decrease in electronic and communication equipment manufacturing sub-industry of its new products in export earnings. It is found that the decline in product competitiveness has nothing to do with the insufficient input of innovation elements, but more with the intermediate links. The link through technological transformation is related to application and absorption. The panel data-fixed effect model was used to verify the assumptions proposed in the previous article. The verification showed that the lack of transformation and application of imported technology and the low efficiency of personnel utilization have led to a decline in the export competitiveness of electronic information manufacturing products. According to the extant research conclusions, three paths for the future innovation of Beijing’s high-tech manufacturing industry to lead sustainable development are given: increased investment in imported technology transformation and adherence to innovation-driven development; improved efficiency of the absorption and absorption of imported technology; and enhanced corporate technology for innovative ability and increased utilization rate of R&D personnel input to stimulate talent innovation vitality.

Multi-Micro/Nanolayer Films Based on Polyolefins: New Approaches from Eco-Design to Recycling

This paper describes a future-oriented approach for the valorization of polyethylene-based multilayer films. The method involves going from eco-design to mechanical recycling of multilayer films via forced assembly coextrusion. The originality of this study consists in limiting the number of constituents, reducing/controlling the thickness of the layers and avoiding the use of tie layers. The ultimate goal is to improve the manufacturing of new products from recycled multilayer materials by simplifying their recyclability. Within this framework, new structures were developed with two polymer systems: polyethylene/polypropylene and polyethylene/polystyrene, with nominal micro- and nanometric thicknesses. Hitherto, the effect of the multi-micro/nanolayer architecture as well as initial morphological and mechanical properties was evaluated. Several recycling processes were investigated, including steps such as: (i) grinding; (ii) monolayer cast film extrusion; or (iii) injection molding with or without an intermediate blending step by twin-screw extrusion. Subsequently, the induced morphological and mechanical properties were investigated depending on the recycling systems and the relationships between the chosen recycling processes or strategies, and structure and property control of the recycled systems was established accordingly. Based on the results obtained, a proof of concept was demonstrated with the eco-design of multi-micro/nanolayer films as a very promising solution for the industrial issues that arise with the valorization of recycled materials.

The Gradual Integration of CCUS into National and Regional Strategies for Climate Change Mitigation, Energy Transition, Ecological Transition, Research and Innovation: An Overview for France

CO2 Capture and Storage (CCS) is gradually gaining global recognition as a vital technology to complement the climate change mitigation portfolio. Since CCS entered the public arena with the publication of the IPCC Special Report in 2005, most of the international prospective scenarios compatible with keeping the temperature rise below 2°C rely on CCS (e.g. IPCC, IEA). International initiatives gathering many volunteer countries are playing a key role for enabling the development and deployment of CCS, such as IEAGHG since 1991, CSLF since 2003, ISO/TC 265 since 2011, Mission Innovation Challenge 3 since 2015, SET Plan Action 9 since 2016. Quite recently the use (U) of CO2 has entered the value chain to encourage the economic use of part of the captured CO2 as a raw material for the manufacture of new products before permanently storing the rest in the deep subsurface, this is why the technology is now often referred to as CCUS, or CCS and CCU. France has played a key role in the development of global climate policies (e.g. the Paris agreement in 2015), and is involved in the various international initiatives devoted to CCUS mentioned above. It is therefore interesting to take stock of how France is preparing to develop this technology and deploy it on its territory. Are we heading towards the deployment of the CCUS technology in France?

Mechanical characterization of epoxy composite reinforced with alkali treated walnut shell powder

Now days, manufacturing of new products using composite materials is in trend. In the present work alkali treated walnut shell powder is consider as a reinforcement material which is reinforce in epoxy matrix composite. Walnut shell powder (5%, 10%, 15% and 20%) by weight is added as a particulate matrix to prepare test samples. Test samples were prepared as per ASTM standard. Ultimate tensile strength, Compressive and Flexural strength of composite are determined. Through the mechanical tests of alkali treated walnut shell powder (WSP), it has been found that the tensile, compressive and flexural strength increases up to 15% by weight and then starts to decrease and the optimum value of tensile, compressive and flexural strength of chemical treated walnut shell powder found at 15% by weight.