Development Of Production Technology Research Articles

Development of WhatsApp-Based Technology Products Using the Design Thinking Approach : Case Study of Finpay Link at PT Finnet Indonesia

Development of WhatsApp-Based Technology Products Using the Design Thinking Approach : Case Study of Finpay Link at PT Finnet Indonesia

Recent developments in photo-fermentative hydrogen evolution: Fundamental biochemistry and influencing factors a review.

The global shift towards renewable energy sources highlights the urgent need for sustainable hydrogen production, with photo-fermentative hydrogen evolution (PFHP) emerging as a promising solution. This review addresses the challenges and opportunities in optimizing PFHP, specifically the role of photosynthetic bacteria (PBS) in utilizing sunlight for hydrogen production. We focus on the key factors influencing PFHP, including light intensity, reactor design, substrate selection, carbon-to-nitrogen ratio, metal ions, temperature, pH, charge transfer and genetic engineering. Additionally, we explore recent advances in techniques such as immobilization, nanoparticles, biochar, and co-culturing to enhance hydrogen production efficiency. By synthesizing the latest research, this review provides new insights into improving PFHP processes, offering strategies for more efficient biohydrogen production. This work contributes to the development of sustainable hydrogen production technologies, advancing the potential for biohydrogen as a clean energy source.

Evaluasi Prospek Bisnis Start-Up Digital: Kajian Kualitatif Aspek Pasar, Teknis, Dan Manajemen

This research aims to evaluate the prospects of digital start-up businesses through a comprehensive feasibility analysis with a focus on three main aspects: market, technical and management. The study uses a qualitative approach with data collection methods through in-depth interviews, participant observation and documentation studies. The research informants consisted of 15 digital start-up actors, 5 investors and 3 digital industry experts who were selected using purposive sampling techniques. Data analysis was carried out using the Miles and Huberman technique including data reduction, data presentation, and drawing conclusions. The research results show that from a market aspect, digital start-ups have significant growth potential supported by increasing internet penetration and changes in consumer behavior towards digital. From a technical aspect, it was found that technological infrastructure and product development capabilities are critical factors in determining the success of a start-up. Meanwhile, from a management aspect, the competence of the founding team, monetization strategy, and ability to manage funding determine business sustainability. The main challenges faced include high customer acquisition costs, limited digital talent, and intensifying competition. This research provides theoretical contributions in developing a model for evaluating the viability of digital start-up businesses as well as practical implications for entrepreneurs, investors and policy makers in developing a sustainable start-up ecosystem. The limitation of this research lies in its limited geographic focus, so further research is recommended to expand regional coverage and conduct comparative analysis between digital industry sectors.

Artificial Intelligence Applications in Engineering: A Focus onSoftware Development and Beyond

AI has a vital role in modern software development practices that enable build-ing of multiple AI-powered solutions. The aim of this review is to present a broad overviewof AI’s application in engineering, focusing primarily on software development and its re-cent expansion into various engineering domains. The review will explore different phases ofAI development, their integration with conventional engineering tools, and their impact onsoftware design. Additionally, it will delve into the intersection of AI and software design,highlighting the potential for enhanced efficacy, precision, and innovation across specific en-gineering disciplines. Moreover, the review addresses persisting challenges and limitationshindering the widespread adoption of AI technologies in software product development, par-ticularly in scenarios devoid of human intervention.

Development of technology for production of heavy plates from continuously cast slabs of low-carbon microalloyed steels using thermomechanical treatment

Development of technology for production of heavy plates from continuously cast slabs of low-carbon microalloyed steels using thermomechanical treatment

The Influence of the Age Factor on The Quest for Value for Money in The Phenomenon of Electronic Product Leveling

With the continuous development of electronic product technology, a large number of reasonably priced, high-performance flat products have appeared on the market. This phenomenon reflects that consumers are highly concerned about the price-performance ratio. The age factor plays an important role in consumers' purchasing decisions, and there are significant differences in the behaviors and preferences of consumers of different age groups in the pursuit of cost-effective products. In this paper, we conduct an in-depth analysis of the demand, purchasing behavior and preference of consumers of different age groups in the phenomenon of electronic product replacement, and explore how the age factor affects consumers' pursuit of cost-effectiveness. It is found that there are significant differences between teenagers, middle-aged people and the elderly in terms of their concern for cost-effectiveness, purchase decision-making process and brand preference. In the phenomenon of electronic product parity, young people are more concerned with appearance and trends, middle-aged people emphasize comprehensive value and rational comparison, and older people tend to choose brands that are easy to use and trustworthy. These differences are closely related to consumers' economic status, consumer attitudes, technology acceptance, and risk tolerance. This paper aims to provide a reference for marketing strategies in the electronics market and to provide new perspectives for future research.

Integrating Citizen Participation in the Development of New ICT Services for Smart Cities

The transition of cities towards a smarter approach significantly benefits from citizen participation in the development and implementation of innovative information and communication technology (ICT) products and services. Despite the emergence of various initiatives in recent years aimed at guiding the development of smart cities, there is still a lack of effective strategies to actively engage citizens, businesses, and educational institutions during the creation of these products and services. This study describes a set of practices that includes four co-creation techniques to facilitate the effort of software system development in collaboration with citizens and other stakeholders. The SEMAT standard is used to create and represent a method in which these practices are distributed across four stages: focus, definition, development, and validation. In each stage, a practice is proposed that incorporates a co-creation technique and complementary activities from various software engineering disciplines to promote active citizen participation; stimulate idea generation; and facilitate the creation of necessary documents and components for the development of the desired software system, including design systems, code files, conceptual representations, and technical diagrams, among others. Finally, the applicability and completeness of the method are validated through expert consultation in the fields of software engineering and smart cities. Recognized procedures are followed to obtain qualitative and quantitative results, such as improvement actions (addition or removal of elements), levels of consensus or acceptance, and opportunities for future work.

The Potential of Microwave Technology for Glycerol Transformation: A Comprehensive Review

Glycerol is a major by-product in biodiesel manufacturing, which accounts for around 10% of the biodiesel volume. A surplus of glycerol has led to the development of technologies for production of value-added products using glycerol as a raw material, following the “waste as a resource” strategy. Various techniques are available to carry out glycerol transformation, viz. carrying out processes under thermal heating, application of ultrasonic or hydrodynamic cavitation, microchannel technologies, etc. Microwave-assisted organic synthesis (MAOS) is a simple and innovative technology, which can be considered as a means of intensifying these processes. This review describes microwave irradiation as a valuable energy-efficient alternative to conventional heating for the production of value-added chemicals from glycerol via dehydration, hydrogenolysis, esterification, transesterification, etherification, and oxidation. In general, innovative and potential catalysts, approaches, and technologies are discussed and critically evaluated in terms of the possibilities and potential for further industrial implementation

Technological innovation, product development, and operational efficiency for new energy vehicle industry: Basis for a synergistic framework

Technological innovation, product development, and operational efficiency for new energy vehicle industry: Basis for a synergistic framework

Neem (Azadirachta indica A. Juss; Meliaceae) as the source for plant-based pesticides as an effective and sustainable biocontrol alternative

The neem tree has strengths such as effective and environmentally friendly active compounds, as well as the ability to improve the quality and productivity of plants organically. However, the use of botanical pesticides has several challenges, such as potentially lower effectiveness compared to chemical insecticides, high production costs, and requiring specific knowledge in formulation and application. Botanical pesticides are readily available tools for insect pest management and are eco-friendly. The research results show that a neem formula at a concentration of 20 ml.l-1 water can cause mortality of brown planthopper is 48.75 - 70%, while mortality in the synthetic insecticide (positive control) at a concentration of 2 ml.l-1 water (as recommended) resulted in 45% mortality. It is obvious that there is a need to develop biological control as alternatives for eco-friendly and sustainable for pests’ control in insect’s pest management strategies. This research study has both qualitative and quantitative approach, data collection strategies were desk review of information and will be based on empirical data and literature. For the desk study, relevant internet web pages were browsed to have an overview of the key concepts of the research issue, problem of pests and diseases control and benefit of neem tree as botanical pesticides. Nevertheless, the use of botanical pesticides can provide long-term benefits to the environment and human health and support more sustainable agriculture. There is a great opportunity for the development of more effective and affordable technology for botanical pesticide production for farmers, but there are also threats such as strong competition from synthetic pesticides. The objective this study aims to determine the potential of neem (Azadirachta indica A.Juss) as a plant producing botanical pesticides as an effective and sustainable biological control alternative.

Development of brandy production technology using high-alcohol wine and quality characteristics of brandy aged with oak chips through accelerated aging

Development of brandy production technology using high-alcohol wine and quality characteristics of brandy aged with oak chips through accelerated aging

Aligning new product development with reverse engineering methodologies for headlamp jig

Abstract This study explores the combination of reverse engineering (RE) and new product development (NPD) methodologies to enhance the manufacturing process of headlamp jigs. RE, utilised as a benchmarking technique, aids in regenerating parametric designs or innovating new product concepts. The distinctive appearance relies on headlamps with protective coatings cured at high temperatures in UV ovens, necessitating jigs capable of withstanding such conditions. Hence, employing RE becomes crucial to fortifying jig performance. While RE often signifies innovation or refinement, the current headlamp jig encounters deformation issues during manufacturing due to high curing oven temperatures and intense water jet cleaning pressures. The absence of an effective NPD approach exacerbates persistent jig deformation challenges. NPD, encompassing stages like idea generation, concept development, design, testing, and marketing, is crucial. The absence of NPD, along with the complexity of RE, could prolong timelines and escalate expenses in bringing marketable products to fruition. This study aims to propose an NPD model for headlamp jigs, leveraging RE methodologies to enhance composite jig fabrication processes. The integration of PDCA methodologies within NPD intends to rectify deformation issues while optimizing manufacturing processes for superior headlamp jigs.

Mathematical model of the system performance mode for simultaneous separate well operation

Relevance. The trend of oil production technology development is related to many relevant topics. One of such actual directions is the technology of simultaneous separate well operation, in particular, including two electric centrifugal pumps and double-sided submersible electric motor. The presence of two formations at the bottomhole implies the selection of the optimal layout, technological parameters of pumps pumping oil. Considering production from two independent formations in the well according to the mentioned technology, there is a high need in selection of correct parameters of installations at the design stage. In the absence of correct selection of technological parameters of units at the design stage, further operation of a well with two independent formations can be economically inexpedient, and in some cases unrealizable, which is due to a number of reasons. First, if the necessary underbalance is not provided for each particular formation, counterflow of fluid may occur and one of the pumps will not participate in the production process. Secondly, when operating an arrangement, which capacity significantly exceeds the capacity (fluid flow from the reservoir) of the well, there is a possibility of pumping failure and, as a consequence, there is a risk of potential failure. In this regard, an extremely urgent task at the moment is to ensure correct selection of technological parameters of electric centrifugal pump units used in simultaneous separate operation of wells with two independent formations. Aim. Development of a mathematical model that allows selecting the optimal technological parameters of the arrangement consisting of two electric centrifugal pumps and a double-sided submersible motor, used for simultaneous separate operation of wells with two independent formations. Methods. Numerical simulation methods for analyzing the operation mode of electric centrifugal pumps in conditions of oil production from two independent reservoirs. Results and conclusions. It was obtained that the developed mathematical model of the system operation mode for simultaneous separate operation of wells allows to estimate the potential of each individual selected pump during oil production (in time dynamics) by analyzing the depression on each individual reservoir, as well as modeling the process taking into account the potential backflow of liquid and supply failure.

Structural and Electrochemical Characterization of Nanographenes Adlayers on Au(111)

The development of efficient hydrogen production technology by water splitting electrolysis with low overvoltage is underway to realize a hydrogen society, and the development of a technology to precisely design and sheet the chemical structure along with catalyst development is very important to understand the electrocatalytic reaction mechanism such as hydrogen evolution and oxygen reduction reaction and the effect of gap spacing on the active site at the nanoscale. This is very important for visualizing and understanding the mechanisms of electrocatalytic reactions, such as hydrogen evolution and oxygen reduction reactions (HER and ORR), and the effect of gap spacing on the active sites at the nanoscale. For example, it has been reported that ORR activity is enhanced on surfaces with adsorbed hydrophobic organic molecules on Pt compared to that on clean surfaces (Nat. Commun. 2018, 9, 4378). The effect of nanopores (vacancy sites) on the HER is unclear, although it is attributed to the limited reaction sites of Pt atoms owing to the adsorption of organic molecules. Furthermore, it is difficult to control the size of the nanopores and their dispersion (distance between nanopores) at the nano-level using a top-down approach, in which graphene sheets are mechanically and chemically processed, and a bottom-up 2D sheet fabrication method should be established. The development of a technique to precisely design chemical structures and fabricate sheets is important to understand the electrocatalytic reaction mechanism at the nanoscale and to visualize the effect of nanopore size and spacing on the active sites at the nanoscale.In this study, we investigated the formation of nanostructures by the intermolecular condensation of nanographene, such as ovalene and dicoronylene (Fig. 1), and investigated the thermal condensation conditions by adsorption on a Au(111) substrate under various conditions. The pore size of the nanostructures formed by ovalene and dicoronylene was characterized by using a scanning tunneling microscope (STM).A clean Au (111) substrate was immersed in an ovalene- and/or dicoronylene-saturated benzene solution for 10 – 60 s, and the coated Au(111) electrode was investigated using cyclic voltammetry (CV) measurements. The current density was significantly reduced before and after the vacuum heat treatment, suggesting that the ovalene molecules were rearranged on Au(111) and condensed between molecules. In addition, as a result of observation of the surface state in the atmosphere with STM, it was found before heating (Fig. 2a), confirming that the ovalene molecule was adsorbed over a wide area, and after heating (Fig. 2b), nanostructures with voids of 2.5 ~ 3 nm in diameter were observed. These results suggest that condensation may have occurred between the ovalene molecules due to heating, resulting in the formation of nanostructures with many nanopores. In contrast, dicoronylene forms a diamond-shaped lattice structure with sides of approximately 1.5 to 2.5 nm. Considering the molecular size of dicoronylene, it is difficult to judge whether intermolecular condensation among dicoronylene molecules occurred; however, the adlayer structure was different from that observed at room temperature. These results strongly suggest that intermolecular condensation reaction among ovalene and dicoronylene occurred on Au(111) upon elevating the temperature in vacuum. From the CV measurements, no significant change in the electric double-layer region was observed before and after the vacuum heating treatment; however, we found small change in the overpotential on the hydrogen evolution reaction. Figure 1

Unveiling a Binder-Free Approach through Plasma Treatment of NiCoO2 Anode Multi-Layer Coatings for Alkaline Water Electrolysis

Over the past decades, the challenge of sustainable energy production at low cost has persisted. Hydrogen emerges as a viable alternative fuel for various applications, yet its utilization faces hurdles. This particularly concerns the sluggish kinetics of the oxygen evolution reaction (OER) at the anode, necessitating higher input energy than theoretically optimal. Apart from an active electrocatalyst, the structure of the anode coating significantly influences performance [1-2-3]. Typically, fluorinated polymer compounds serve as a binder/ionomer, enhancing ionic transport during OER [4]. However, its exorbitant price and compliance with European Union regulations banning per- and polyfluoro substances (PFAS) poses challenges. One solution is to develop binder-free anodes. In this study, we explore the effectiveness of a nitrogen plasma treatment (PT) on catalyst-coated nickel plates with varying mass loadings to achieve binder-free and efficient OER performance.As a starting point, we utilized commercial nickel-cobalt-oxide (NiCoO2, Merck group), featuring processable primary particle sizes < 150 nm. Characterization of the powder involved various techniques including X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). Next, Hansen solubility parameters were recorded to select the suitable dispersant and an ink was prepared using an ethanol-water mixture. Ink stability was demonstrated through analytical centrifugation measurements analyzed by transmittograms [5]. Stable inks passing this quality gate were spray coated onto Ni metal plates with varying layer numbers of 40 (anode 40L), 80 (anode 80L), and 120 (anode 120 L), corresponding to mass loadings of 375 µg cm-2, 750 ug cm-2 and 1125 ug cm-2, respectively. Noteworthily, anode 40L exhibited incomplete catalyst coverage with visible substrate whereas anode 80L and anode 120L displayed a fully covered substrate. As these layers suffered from mechanical instability due to delamination, we added post-treatment by nitrogen plasma. All anodes were analyzed before and after plasma treatment in terms of their morphology, physico-chemical characteristics, and adhesion properties. The mechanical properties of these coatings were evaluated using an adhesion analyser, revealing enhanced adhesion strength for plasma treated samples compared to their as-prepared counterparts. Scanning electron microscopy (SEM) analysis exhibited notable morphological alterations in the plasma-treated samples as illustrated in Figure 1a-c. Two distinct morphologies were observed. In case of anode 40L with plasma treatment (40L PT), the sample displayed incomplete coverage and exhibited spherical clusters of agglomerates. In contrast, the fully coated anodes 80L PT and 120L PT showcased enhanced coverage and distinct agglomerates. Besides these morphological observations, energy dispersive X-ray (EDX) analysis and X-ray photoelectron spectroscopy (XPS) showcased a notable increase in the oxygen to metal ratio in anode 40L PT compared to anodes 80L PT and 120L PT. We attribute this to the synergistic interaction between the N2 plasma and the Ni plate substrate. This holds particularly for anode 40L PT, due to its low catalyst density and exposed Ni surface from the substrate which might have potentially induced the presence of oxygen molecules on the electrode surface. Finally, electrochemical measurements showed similar activity for the fully covered anodes 80L PT and 120L PT as shown in Figure 1d. This was expected due to very similar morphologies and surface properties evidenced by the chemical analysis. This indicates that higher mass loading does not increase the OER performance after PT. In contrast, anode 40L PT exhibited clearly superior performance with an overpotential value of 373 ± 3 mV. This can be potentially attributed to the higher abundance of oxides at the surface, which might have increased the amount of active sites in the anode.Our study highlights the potential of binder-free anodes for enhancing the efficiency of the OER in hydrogen production. By employing commercial NiCoO2 powder as an electrocatalyst, coated on nickel substrates and finally utilizing a post-nitrogen plasma treatment, we achieved optimization of properties among the different layers, resulting in improved OER performance. These findings provide valuable insights into advancing the development of efficient and sustainable energy production technologies, thereby facilitating progress towards binder-free innovations in the field of electrocatalysis.

Evaluation of Viscosity Reducers for Heavy Oil Reservoirs: Experimental Testing and Numerical Simulation.

The application of thermal recovery methods in Chad's heavy oil fields has proven to be challenging, necessitating the development of chemical cold production technologies. The mechanisms causing heavy oil viscosity remain unclear, and the effects of adding viscosity reducers in wells with varying water contents are not well understood. In this study, the composition and structure of Chad's heavy oil samples were experimentally analyzed, revealing that the viscosity is primarily due to the accumulation of isoprenoid-like components and the high concentration of side-chain naphthenes in the oil's saturated fraction. Based on this mechanism, viscosity reducers were screened, with DG, a high-molecular-weight water-soluble viscosity reducer, demonstrating the most effective results. Numerical simulation was then employed to characterize the mechanism of viscosity reducers and to model the impact of adjusting daily production rates and introducing viscosity reducers in wells with different water contents on the cumulative oil recovery. The field numerical model was used to simulate for 10 years, and the results showed that for high water content wells, the injection of viscosity reducer reduced the daily fluid volume by 10%, and the cumulative recovery rate increased by 6.75%; for low water content wells, the injection of viscosity reducer increased the daily fluid volume by 20%, and the cumulative recovery rate increased by 3.08%. This research aims to provide new insights into the development of heavy oil reservoirs.

Development of structures and production technologies of reinforcing wire with a screw profile

Reinforcing wire is the main structural element in reinforced concrete structures, widely used in the construction of buildings and structures for various purposes. The type of profile is important factor which determines the consumer properties of fittings. This indicator directly affects the quality of reinforcement adhesion to concrete and the properties of the wire. Currently a periodic profile is the most common type, but a screw profile is the most promising form of the profile. Two methods are used in the production of cold-formed screw profiles: applying a screw profile and torsion process. The first is carried out by rotating the profiling element, and the second by torsion of the workpiece of the shaped section. The patent and literature review of methods for obtaining cold-formed screw profiles has shown that the most effective way to obtain reinforcing wire with a screw profile is torsion, which provides, in addition to profiling, an increase in the mechanical and operational properties of the wire. With the help of the Deform-3D software package we identified impact of the profile, namely the shape of the cross section on the tension. By choosing rational torsion parameters, it is possible to achieve a favorable stress-strain state and respectively the properties of the product. One of the promising areas of development is the combination of a periodic and a screw profile, and it is necessary to obtain a screw profile using torsion deformation as a method of intense plastic deformation in order to form a uniform structure in metal with a minimum stress state in addition to the profile. We justified the application of radial shear broaching, an analogue of the radial shear rolling process, which allows to obtain a screw profile reinforcing wire with high mechanical properties due to the production of a finely dispersed structure. This method is implemented on standard drawing equipment and provides an increase in the productivity of wire production by torsion compared to other methods

Mini-review on laser-induced nanoparticle heating and melting.

The development of various nanomaterials production technologies has led to the possibility of producing nanoparticles (NPs) and nanostructures, which can find a wide range of applications, from the fabrication of microelectronic devices to the improvement of material properties and the treatment of cancer. The unique characteristics of nanoparticles are primarily due to their small size, which makes size control important in their preparation. Modification of nanoparticles by laser irradiation and obtaining desired nanoparticle properties is a promising approach because of its ease of implementation. The purpose of this review is to analyze the works devoted to the study of laser-induced heating and melting of nanoparticles, to collect information and evaluate the results of using this method for functionalization and modification of metallic nanoparticles, and to discuss promising directions for the use of this technique.

Single-layer GaInTe3: Water-splitting photocatalyst low exciton binding and ultrahigh solar conversion efficiency

Herein, we analyze the water decomposition possibility of single-layer (SL) GaInTe3 under the −2% to +2 % biaxial strain via first-principles stimulations. Our results find that SL GaInTe3 exhibits effective separation of photogenerated electrons and holes, which is strongly affirmed by the electronic property and the quite loose exciton binding. Furthermore, SL GaInTe3 has a suitable band edge and excellent visible-light capture ability, making it an ideal candidate for solar-assisted water decomposition. In addition, SL GaInTe3 shows a solar-to-hydrogen (STH) conversion of more than 33.0 %, further emphasizing its potential as a highly efficient photocatalyst. In conclusion, SL GaInTe3 has been supported by conclusive evidence as a photocatalytic material with excellent performance, providing new support and encouragement for the development of hydrogen production technology. Moreover, the effective thickness of 2D materials is defined as the largest spreading height of the electron cloud in covalent bonds perpendicular to the 2D atomic plane.

Development of oat malt production technology using plasma-chemically activated aqueous solutions

The object of the study was oat malt production. The result of the presented study is the development of a technology for gluten-free oat malt production using cold plasma-treated technological solutions. The material for the study was oat grain. The main technological task is to obtain high-quality oat malt, which, in turn, will be suitable for producing gluten-free beverages and highly nutritious foods. The expediency of using cold plasma-treated aqueous solutions as an activator of the oat malting process and an effective disinfectant of the technological process and the finished product (oat malt) was experimentally proved. It was confirmed that using cold plasma-treated aqueous solutions can accelerate the oat germination process: the germination energy increased by 6–14 %; germination capacity by 2–10 %. The moisture content of oats when moistened increases by 6–37 %. Analysis of the amylolytic enzymatic activity showed a dynamic increase of 17.6 %. The result was the breakdown of carbohydrates. Thus, the amount of starch decreased by 2.4 %, fiber did not undergo significant changes, and the content of simple sugars increased by 2.3 %. The proteolytic activity of oat malt increased by 18.1 %. An increase in the amount of amino acids in the experimental samples was noted. The total amount of amino acids is 793 mg/100 g of product higher than in the control (i.e. by 3 %). There was also an increase in the content of vitamins B (B1, B2), as well as vitamin C, the content of which increased by 5.6 %. Disinfecting properties of cold plasma-treated aqueous solutions in relation to oat malt were noted. The innovative technology of oat malt production can be implemented in the industrial production of gluten-free malts for the brewing industry and for producing gluten-free foods.