Production Inefficiency Research Articles

Promoted formation of pyrazines by targeted precursor addition to improve aroma of thermally processed methionine-glucose Amadori compound

The methionine/glucose (Met/Glc) and methionine/glucose-derived Amadori rearrangement product (MG-ARP) models were established to analyze their differences in flavor profiles and aroma potentiality. The principal component analysis revealed the advantage of MG-ARP in the formation of low temperature-induced processing flavor. MG-ARP exhibited superior potential in the rapid formation and high intensity of processed flavor than the Met/Glc except for the inefficiency in pyrazine production. The extra-added Glc tended to react with recovered Met to compete against α-dicarbonyl compounds to suppress the Strecker degradation and pyrazine formation. The additional Met effectively improved the precursor availability and facilitated the conversion of C6-α-dicarbonyl compounds to short-chained α-dicarbonyl compounds for pyrazine formation rather than their dehydration and cyclization to generate furans. The oxidation of Met favored the nonoxidative carbohydrate degradation leading to MGO formation and the aldolization of dihydropyrazines, which synergistically enriched the varieties of pyrazines, especially for the promoted formation of long-chain substituted pyrazines.

Improving Egg Production, Quality and Eggshell Hygiene by Supplementation of Sage (Salvia officinalis) and Lavender (Lavandula angustifolia) Essential Oils

ABSTRACT Objective: This study was performed to evaluate the effects of sage (Salvia officinalis) and lavender (Lavandula angustifolia) essential oils (EO) supplementation into drinking water on egg production, quality and eggshell hygiene in laying hens. Material and Methods: A total of 300 Nick Brown laying hens between 30 and 38 of age were used in a completely randomized design in three treatments and ten replicates. The treatments consisted of: control group, sage EO, lavender EO supplementation group. EOs were supplemented into drinking water (0.3 mL/L). Results: A lower value of egg production, egg weight, egg mass and deteriorations in feed efficiency, eggshell breaking strength and thickness were observed in lavender EO group (P

Voluntary sustainability standards and technical efficiency of Honduran smallholder coffee producers

Sustainable coffee production promises to improve production techniques and enhance the socioeconomic conditions of smallholder farmers. Using primary survey data from 659 coffee producers in Honduras, this study assesses the impact of voluntary sustainability standards (VSS) on the technical efficiency of smallholder coffee production. The article uses the Stochastic Production Frontier Analysis model to analyze and compare the technical efficiency (TE) of certified and non-certified coffee producers. To provide reliable comparability between groups, the dataset was balanced using Covariate Balancing Propensity Score (CBPS). The results show that the mean technical efficiency was 52.86% for pooled certified farmers and 55.56% for non-certified smallholder coffee producers. Specifically, the technical efficiency of 4C farmers was 51.58%, 53.82% for the Fairtrade group, 60.56% for RA farmers, and 60.15% for the UTZ group, indicating substantial inefficiencies in the coffee production of the different certified groups. Results from Tobit’s model for the determinants of TE indicated that variables such as the age of the household head, access to credit, and training attendance are among the main factors that significantly drive the technical efficiency of certified and non-certified farmers. Based on the findings, enhancing education opportunities, improving infrastructure for better market access and farm management, and expanding credit access are recommended to improve efficiency in the study area. Honduran smallholder coffee producers have considerable potential to increase output with existing technology by improving their technical efficiency. Therefore, stakeholders’ efforts should focus on enhancing efficiency levels and capitalizing on potential gains for both certified and non-certified farmers, to ultimately improve the farmers’ livelihoods.

Enhancing efficiency and economy of hydrogen-based integrated energy system: A green dispatch approach based on exergy analysis

Hydrogen-based integrated energy system holds promise for leveraging the low carbon advantage of hydrogen, but inefficiency of electrolysis hydrogen production leads to significant exergy loss within its operation. Addressing this, this paper focuses on the energy-saving and economic operation of the hydrogen-based integrated energy system, proposes a novel green dispatch approach using loss cost as the objective function and establishes a refined loss cost accounting model based on exergy analysis theory. Firstly, derived from the analogy of exergy loss, the concept and accounting framework of system loss cost are proposed. Secondly, employing exergy analysis and consistent unit exergy cost principle, equipment operation loss cost is calculated through energy, exergy flows analysis and cost allocation. Thirdly, utilizing the total of equipment operation loss cost, wind curtailment penalty cost, and transmission line loss cost as the objective function, a green dispatch model is formulated to minimize overall loss cost while ensuring energy balance and other constraints. Finally, simulations analysis are conducted. The results show that compared to economic dispatch, minimized exergy loss dispatch and multi-objective dispatch methods, proposed approach increases exergy efficiency by 0.54 %, reduces cost by 6.13 % and increases the scale of hydrogen utilization by 3.45 %, respectively.

ECONOMIC EFFICIENCY OF GROUNDNUT PRODUCTION IN KANO STATE, NIGERIA

The study examined the economic efficiency of groundnut production in Kano State, Nigeria. Using a simple random sampling, two hundred and sixty-seven (267) farmers were selected and interviewed from nine communities, under the three selected LGAs from the study area. Descriptive statistics, DEA, as well as Tobit regression model were used for data analysis. The result of the Data Envelopment Analysis (DEA) reveals that the farmers were operating below the optimum frontier with average Technical Efficient (TE), Allocative Efficiency (AE) and Economic Efficiency (EE) scores was 0.265, 0.371 and 0.098 respectively, with the GM enterprise having a higher mean TE score of (0.7654). All the inefficiency variables met a prior expectation with positive coefficients except age and level of education. This indicates that increase in age and years of schooling have minimal effect in reducing the farmers’ inefficiency in groundnut production. Four out of the eight fitted inefficiency variables were significant at 10%, while three at 5%, but the extension contact was not significant. It was thus concluded that even though groundnut production enterprise is a profitable one, groundnut farmers in the study area were both technical and allocative inefficient. It was therefore recommended that farmers should be encouraged through extension to adopt new available technologies and improved varieties which will help improve both their technical and cost efficiency thereby widen their margin gaps.

Recommendation System for Determining the Best Banner Supplier Using Profile Matching and TOPSIS Methods

Background: Choosing a banner supplier is a significant challenge for digital printing companies due to the various advantages offered by each supplier, often leading to selections based on subjective aspects such as price and quality. Objective: This research aims to develop a system that determines the best banner supplier to minimize production inefficiencies and maximize profits by comparing two calculation methods, Profile Matching and TOPSIS. Methods: A quantitative study was conducted using transaction data from the last six months. The parameter criteria used in this system include price, quality, delivery, availability, and payment terms. The study compares the effectiveness of Profile Matching and TOPSIS methods in identifying the best supplier. Results: The study results show that the TOPSIS method is superior, yielding 100% accuracy, 84% recall, and a 92% F1-score, outperforming the Profile Matching method. This demonstrates that the correct method and algorithm effectively provide the best alternative recommendations. Conclusion: The results indicate that using the TOPSIS method leads to more accurate and objective decisions based on predetermined criteria. The findings suggest that further research should focus on refining these methods to enhance decision-making in supplier selection.

Second Bread: Potato Cultivation and Food Security in Kyrgyzstan

Kyrgyzstan experienced a remarkable boom in potato production over the past thirty years, driven almost entirely by small farms. Today, potatoes are at once the backbone of national food security, a central source of income for many Kyrgyz households, and a non-trivial source of export earnings. This paper documents the central characteristics of the Kyrgyz potato economy and explains the conditions of its emergence and resilience. We show that Kyrgyzstan’s potato economy is driven by three main features: land reforms that dispersed ownership of land early in the post-Soviet transition, dense social networks that connect producers to input suppliers and markets, and a match between the potato and the country’s mountainous terrain and continental climate. Together, these features have given rise to a food security model that leverages the potato’s well-known nutritional qualities, its cultural status as a food staple across the region, and Kyrgyzstan’s geography and climate. We term this the Kyrgyz Potato Model (KPM). Unlike critics that stress the inefficiencies of Kyrgyz potato production, we highlight the model’s strengths: it is extremely effective in feeding citizens, generates much-needed household incomes, and has been remarkably resilient in the face of recent global economic crises.

Transient and Persistent Technical Efficiencies in Rice Farming: A Generalized True Random-Effects Model Approach

This study estimates transient and persistent technical efficiencies (TEs) using a generalized true random-effects (GTRE) model. We estimate the GTRE model using maximum likelihood and Bayesian estimation methods, then compare it to three simpler models nested within it to evaluate the robustness of our estimates. We use a panel data set of 945 observations collected from 344 rice farming households in Vietnam’s Mekong River Delta. The results indicate that the GTRE model is more appropriate than the restricted models for understanding heterogeneity and inefficiency in rice production. The mean estimate of overall technical efficiency is 0.71 on average, with transient rather than persistent inefficiency being the dominant component. This suggests that rice farmers could increase output substantially and would benefit from policies that pay more attention to addressing short-term inefficiency issues.

Peningkatan Kapasitas Produksi dan Penjualan Produk Kelapa Gongseng Aceh Pasca Pandemi COVID-19 Melalui Teknologi Tepat Guna dan Pemasaran Digital

This article delves into the strategic enhancement of production capacity and sales of Acehnese roasted coconut products in the aftermath of the COVID-19 pandemic, leveraging the application of appropriate technology and digital marketing approaches. The focus of this community engagement initiative lies in addressing the multifaceted challenges faced by the local community, including disruptions in traditional market access and production inefficiencies exacerbated by the pandemic. The objectives of the program are meticulously outlined, detailing the implementation of innovative technological solutions and digital marketing strategies designed to increase production efficiency, product quality, and market reach. The study also discusses the anticipated socio-economic impacts, particularly the potential for sustained community empowerment and economic resilience. The integration of these modern approaches aims to foster long-term sustainability and competitive advantage for micro, small, and medium enterprises (MSMEs) in Aceh, thereby contributing to broader economic recovery and growth.

Enhancing Manufacturing Excellence with Digital-Twin-Enabled Operational Monitoring and Intelligent Scheduling

This research examines the potential of digital twin (DT) technology for reformation within China’s traditional solid-wood-panel processing industry, which currently suffers from production inefficiencies and the slow adoption of digital technology. The research centers around developing a digital twin system, elucidating improvements in manufacturing efficiency, waste management, process simulation, and real-time monitoring. These capabilities facilitate immediate problem solving and offer transparency in the process. The digital twin system is comprised of physical, transport, virtual, and application layers, employing a MySQL database and using the Open Platform Communications Unified Architecture (OPC UA) protocol for communication. The application of this system has led to heightened production efficiency and better material use in the solid-wood-panel manufacturing line. Integrating the dynamic selection adaptive genetic algorithm (DSAGA) into the virtual layer drives the system’s efficiency forward. This evolved approach has allowed for an enhancement of 8.93% in the scheduling efficiency of DSAGA compared to traditional genetic algorithms (GAs), thereby contributing to increased system productivity. Real-time mapping and an advanced simulation interface have strengthened the system’s monitoring aspect. These additions enrich data visualization, leading to better comprehension and a holistic process view. This research has ignited improvements in solid-wood-panel production, illustrating the tangible benefits and representing progress in incorporating digital technology into traditional industries. This research sets a path for transforming these industries into smart manufacturing by effectively bridging the gap between physical production and digital monitoring. Furthermore, the adjustability of this approach extends beyond solid-wood-panel production, indicating the capability to expedite movement towards intelligent production in various other manufacturing sectors.

Alleviating poverty for common prosperity: The role of Fupinguan in an E-tailing supply chain

To alleviate poverty, e-tailers in China have established special web portals or channels, known as Fupinguans (FPGs), to sell products from poor suppliers in rural areas. This paper investigates the underlying mechanism of FPGs in poverty alleviation (PA) and explores their implications for the common prosperity of stakeholders. We consider an e-tailing supply chain where an e-tailer sells substitutes from a poor supplier (characterized by production inefficiency and capital shortage) and a normal supplier to PA-conscious consumers. The benchmark analyses show that the poor supplier faces hurdles in participating due to cost disadvantages in competition. The traditional PA strategy of loan interest subsidies, employed by the e-tailer, can involve the poor supplier in the supply chain by reducing its costs. However, this strategy can mitigate (not eliminate) the poor supplier's cost disadvantage while hurting the normal supplier. Instead, the FPG strategy will provide the poor supplier with a market advantage while indirectly triggering a spillover effect on the normal supplier's product. In this light, the FPG strategy can eliminate or even reverse the poor supplier's competitive disadvantage while benefiting the normal supplier and all stakeholders. Consequently, it can dominate the traditional strategy when the e-tailer has an insufficient financing capability or efficient FPG investment. The e-tailer's FPG investment incentive decreases with the cost disadvantage, whereas competition can strengthen this incentive when the cost disadvantage or competition intensity is sufficiently low. These findings position FPGs as novel business opportunities that align with the ethos of doing well by doing good.

Impacts of environmental regulation perceptions on farmers’ intentions to adopt multiple smart hog breeding technologies: Evidence from rural Hubei, China

Smart hog breeding technologies have been viewed as practical solutions for environmental pollution, pork production inefficiency and food insecurity in rural areas. With difficulty in promoting these technologies, little is known about the role environmental regulation plays. Using 703 household survey data from rural Hubei, China, this paper identifies the impacts of different environmental regulation perceptions (i.e., supervisory, incentive and guiding regulation perceptions) on hog breeding farmers' intentions to adopt smart hog breeding technologies and on the intensity of their adoption intentions. Both multivariate probit model and ordered probit model are employed. Results show that smart hog breeding technologies are strong complementary. Farmers' environmental regulation perceptions greatly promote their intentions to adopt smart hog breeding technologies and their adoption intention intensity. Only the intensity of healthy farmers' adoption intentions is promoted by supervisory regulation perception. Compared to those without village cadres in family, the intensity of village-cadre group's adoption intentions is strengthened more by supervisory and guiding regulation perceptions. The greater incentive regulation perception is, the stronger the intensity of large-scale farmers' adoption intentions would be. The impacts of different environmental regulation perceptions on the intensity of adoption intentions are all partially mediated by value perception of smart agriculture. These findings suggest promoting smart hog breeding technologies jointly and underscore the importance of local environmental regulations in accelerating the diffusion of smart hog breeding technologies.

TECHNICAL EFFICIENCY OF LAYER FARMERS IN AKWA IBOM

This study analyzed the technical efficiency of layer farmers in Akwa Ibom State, Nigeria. A multistage random sampling technique was employed to select a total of 100-layer farmers across three agricultural zones in Akwa Ibom State. Relevant data was collected with the aid of a questionnaire. Data collated from the field was analyzed using descriptive statistics, stochastic production frontier, and maximum likelihood estimates. The result showed that most of the farmers were female, with mean age of 36.68 years for layer farmers. The production function estimate showed that hired labour, feeds, capital depreciation, pen size, and saw dust use positively influenced output of layer birds, while family labour and medication had a negative impact on output. The technical efficiency distribution showed a mean efficiency of 66%. The determinants of technical inefficiency showed that education, family size, market share, farming experience, extension visits, trainings, farm size and membership in social groups had negative influence of technical inefficiency of layer production, and farmers age and access to credit had a positive effect on the technical inefficiency of layer production. The study recommends the government and relevant stakeholders should make efforts to subsidize the cost of essential poultry inputs, and develop a workable system to enable poultry farmers access credit. Also, extension training should be intensified as it is shown to improve the technical efficiency of layer farmers.

ANALYSIS OF TECHNICAL EFFICIENCY OF CASSAVA FARMERS IN ABAK LOCAL GOVERNMENT AREA OF AKWA IBOM STATE, NIGERIA

The study analyzed the technical efficiency of cassava farmers in Abak Local Government Area of Akwa Ibom State, Nigeria. The specific objectives were to; describe the socio-economic characteristics of cassava farmers; determine the technical efficiency of cassava farmers; estimate the determinants of technical efficiency among cassava farmers and examined the constraints militating against cassava production in the study area. Multistage sampling procedure was used in selecting 120 respondents for the study. Primary data were obtained using structured questionnaire and the data obtained were analyzed using descriptive statistics and stochastic frontier production function. The result showed that the average age, household size, farming experience, and farm size of the sampled respondents were 39 years, 4 persons, 6 years and 1.9 hectares, respectively. The mean, maximum and minimum technical efficiency were 0.73, 0.95 and 0.38. The findings on the estimated stochastic production function and the determinants of technical inefficiency showed that farm size (p<0.01), cuttings (p<0.01) and labour (p<0.01) were found to be significant inputs in cassava production while household size (p<0.1), education (p<0.01), monthly income (p<0.01), membership of cooperative (p<0.01), access to credit (p<0.01) and access to extension services (p<0.1) were the determinants of technical inefficiency of cassava production in the study area. Also, the major constraints to cassava production were, high cost of fertilizer (13.7%), theft (13.7%), lack of access to credit (13.7%), inadequate access to land (13.7%), and poor road network (13.7%). The study recommends that training and capacity-building programs should be targeted to improve farmers' knowledge and skills in efficient cassava production techniques, with a focus on optimizing inputs such as farm size, cuttings, labour and extension services. Also outreach programs should be strengthened to provide farmers with timely information, technical support, and best practices for cassava production, thereby reducing technical inefficiencies.

Sources of Technical Inefficiency for Smallholder Field Pea Producers in Ethiopia

This study intended to measure the technical efficiency and sources of inefficiency for field pea producers in Ethiopia. The study used primary data collected from 207 smallholder farmers. A multi-stage sampling technique was followed to select sample households. A stochastic frontier was the model used, and a single-step estimation approach was followed. The result indicated that the mean technical efficiency is 49.23 %, and the average productivity of the crop is 0.96 tons/hectare. This indicates that the technical efficiency could be increased by 51.77 % through proper utilization of production variables, i.e. agrochemicals, oxen power, plot size, and seed rate. The inefficiency model result also confirmed that the technical inefficiency of field pea production was negatively affected by access to off-farm income, access to credit services, extension contacts, adoption of new technologies, access to training, and participation in contract farming of the crop. Therefore, this study recommends agricultural policies favoring vocational training to farmers on the new agricultural technology packages, availing access to off-farm incomes, facilitating credit services to farmers, and establishing legal frameworks that encourage contract farming.

Yield Gaps and Factors Affecting Production Inefficiency in Smallholder Oil Palm Plantations in Muaro Jambi District Jambi Province

Abstract Oil palm plantations in Indonesia, including in Jambi Province, are categorized into large private plantation, state-owned plantation, and smallholder plantation. The productivity of smallholders is the lowest compared to the other 2 categories. At the district and sub-district level, the yield of smallholder oil palm is also vary, spreading from 1,675 to 6,680 kg CPO per ha per year. The large yield variation is inseparable from the plantation management among farmers. The objectives of this research are to study the yield gap and technical efficiency of production among smallholders, and to analyze the factors that affect the technical production inefficiency in smallholder oil palm plantation. The research was conducted in Muaro Jambi District as a main palm oil producing district in Jambi Province. Data was collected from a sampel of 120 independent smallholders. One way anova test was used to study the yield gap and double natural log (ln) of Cobb–Douglas stochastic frontier production function was used to analyze the technical efficiency and some factors affects its inefficiency. The results revealed that there were significant differences in yield among smallholders based on area size, level of education, and activeness in the farmer organizations. However, on average, the management of oil palm by independent smallholders is quite technically efficient. The factor that significantly affects the level of technical inefficiency are the size of the area and farmers’ level of education.

Economical factitious diet for mass rearing of greater wax moth, Galleria mellonella (Lepidoptera: pyralidae), a promising host for entomopathogenic nematodes

BackgroundGreater wax moth (Galleria mellonella L.) (Lepidoptera: Pyralidae) is most commonly used for mass multiplication of entomopathogenic nematodes. An investigation on economical modification and comparative analysis of factitious diets of G. mellonella was carried out under laboratory conditions. Different diets were assessed in comparison with standard diet.ResultsModifications based on quantity change of dietary components (wheat flour, maize flour, dry milk, dry yeast, honey and glycerin), addition of vitamin E and vitamin-B complexes, elimination of dry milk and replacement of glycerin with sorbitol showed reduction in the cost of production and increase in food conversion efficiency in G. mellonella. The weight of larva in diet III (303.40 mg) was highest as compared to the larval weight in control diet (280.00mg). The conversion of ingested and digested food into biomass of G. mellonella was the highest for factitious diet III. Also, the highest number of Steinernema abbasi was produced from G. mellonella larvae reared on diet III (25418.43IJs) followed by diet I (21805.31IJs). The economics of the diets also showed that the percent cost reduction in factitious diet III and diet I was 48.86 and 28.85%, respectively. Overall, the results suggested that factitious diet III was superior to diet I followed by diet II.ConclusionAddition of supplements of vitamin E and B-complexes enhances the biological activity of the insect, thereby increasing its food conversion efficiencies. Factitious diet III can be successfully used for mass multiplication of the G. mellonella.

Optimal carrying capacity in rural tourism: Crowding, quality deterioration, and productive inefficiency

This paper introduces a novel framework for characterizing destination overcrowding in rural tourism using a production approach. We build upon destination life cycle, carrying capacity, and consumer preference theories to characterize optimal levels of overnight stays in the presence of disutility from crowding. Using panel data for rural tourism in Spanish provinces, we model crowding non-linearly as a demand shifter within a service production function. To deal with plausible endogeneity, we use a control function approach within a Stochastic Frontier regression. Consistent with our theoretical predictions, we show there is a non-linear concave relationship between overnight stays and crowding. We calculate optimal carrying capacity levels (turning points) for each province and illustrate which regions are exhibiting negative externalities from overcrowding.

Exergetic and exergoeconomic analyses of a large-scale industrial beer processing system

This research evaluated the performance of components and sections involved in industrial beer production using exergetic and exergoeconomics methodologies. The system was segmented into five production sections, and three energy input types were considered. The exergetic studies showed an operational exergetic efficiency of 3.33%, with an overall exergetic destruction rate of 5.54 MW and a specific destruction rate of 9.72 kW/hl for beer production. The overall improvement potential and sustainability index were estimated at 4.98 MW and 1.03, respectively. The brewhouse and packaging hall were identified as the sections with the highest production inefficiency, 58.73% and 30.40%, respectively. The exergoeconomic studies revealed a cost rate of 0.1704 USD/s for beer production, with the wort kettle, filling and cocking machine, Kieselguhr candle filter, whirlpool, and brite beer tank identified as the top five significant components in descending order. The efficiency of the system was critically affected by the activities in the packaging hall, particularly those involving energy inputs that cannot be recovered or attributed to the processed stream, beer. Further research is required to determine the cost savings of optimization measures identified from additional steam throttling, downsizing of some main pumps, and exergy loss during heating of wort and beer chilling processes.

Perancangan Ulang Tata Letak untuk Pengoptimalisasian Ruang pada Bebeke Om Aris Dramaga Kota Bogor

In the era of increasingly rapid globalization, the industrial world is faced with inevitable dynamics. One important aspect in industry is optimal layout planning. The right layout determines the effective placement of production facilities, thereby smoothing the production process and increasing productivity. The current layout of production facilities at Bebeke Om Aris Dramaga is not optimal, causing production inefficiencies and increased costs. This research aims to redesign the layout of facilities at Bebeke Om Aris Dramaga. This research examines the design of alternative layouts at Bebeke Om Aris Dramaga with the aim of increasing productivity. The methods used are Activity Relationship Chart (ARC) and Total Closeness Rating (TCR). Production location calculations are carried out periodically to obtain accurate information. The research results show that the proposed layout has shorter distances between facilities. Apart from that, the resulting service time is more optimal. This change in store layout shows that the new layout is more effective and efficient than the old layout. This is proven by research results which show that the new layout design can reduce the time spent by employees in the production process and service to customers and the distance between facilities and increase the efficiency of employee movement.