Safe Supply Research Articles

ОБЕСПЕЧЕНИЕ БЕЗОПАСНОСТИ И НАДЕЖНОСТИ СИСТЕМ ГАЗОСНАБЖЕНИЯ В ЖИЛЫХ ДОМАХ

The scientific article is devoted to the problem of ensuring the safety and reliability of gas supply systems in residential buildings. The main threats, technical solutions and regulatory aspects necessary to minimize the risks of emergency situations are considered. Particular attention is paid to modern technologies for detecting gas leaks and preventive measures. The study is an important contribution to the field of gas supply safety and is aimed at increasing the awareness and safety of residents of residential premises.

미중패권경쟁에서 아세안을 통한 한국의 경제개발 전략에 관한 연구

The trade competition between the United States and China is fierce enough to affect relevant allies. Semiconductors play an important role in cutting-edge technology, so much so that they are called the rice of the high-tech industry. Since they are essential for automobiles, mobile phones, displays, etc., there is a need to ensure a safe supply chain in the industry. This study focused on the need to strengthen economic diplomacy using ASEAN to enhance Korea's national interests amid the US-China hegemony competition. ASEAN countries pursue practical benefits through hedging strategies. As the war in Ukraine continues and Israel and the Palestinian radical armed group led by Hamas are at war, an international security crisis is emerging, and ASEAN countries are converging on the need for strategic cooperation. The United States has consistently made efforts to improve relations, emphasizing a pivot to Asia. China believes that it is necessary to secure Chinese influence in the Southeast Asian region and is actively participating in ASEAN. Korea In order to strategically overcome this difficult situation, we must strengthen cooperation with ASEAN countries and promote economic diplomacy to secure practical benefits. Korea should strengthen economic diplomacy with ASEAN and make strategic efforts to create a win-win relationship when ASEAN countries achieve rapid economic growth in the future. Korea should secure its national interests by cooperating with Vietnam, Laos, Thailand, Cambodia, Myanmar, the Philippines, Brunei, Malaysia, Singapore, and Indonesia and strengthening economic diplomacy.

TRIAC Based Isolated AC Load Drive Equivalent Circuit Design of Solid-State Relay

Electronic main boards generally provide the supply and control functions of a system. All electronic main boards include inputs and outputs and are designed according to the design requirements. In this study, a safe and low-cost switching mode power supply (SMPS) board is designed using a flyback converter topology to drive the AC and DC outputs. The triode for alternating current (TRIAC)-based safe and low-cost main board includes a flyback configured transformer with additional winding for driving the TRIAC as an AC output switch in noise immune quadrants II and III. TRIAC is used to switch AC outputs instead of a relay, and the isolation distances of the safety criteria are provided by an optocoupler. In this way, the relay usage is over, and one TRIAC and one optocoupler do the same work that is done by one relay. In this way, the cost of the AC output switch decreases. In addition, the number of AC switches covering the area on the printed-circuit board (PCB) of the mainboard decreases. The flyback topology is designed with half-wave rectified and the transformer is designed with extra winding for producing negative voltage with respect to primer reference for providing negative gate current of TRIAC. TRIAC-based AC output switched, safe, and low-cost main boards can be used for white good main boards, automation (PLC) applications, and automotive electronic control systems. This study provides cost-effective solutions in these areas.

Strategies for Enhancing Food Safety-A Policy Appraisal in Punjab, Pakistan

Ensuring the security and safety of the food supply across Pakistan is a complex challenge that demands continual evaluation as well as robust policy responses. This policy paper outlines a comprehensive strategy to address the challenges to enhance food safety across the province of Punjab, Pakistan. In this regard, this research takes into account a number of factors, such as international cooperation, technological developments, regulatory frameworks, and stakeholder roles. It also explores the dynamic nature of food safety risks, highlighting the necessity for proactive and adaptable policies to counter new hazards. A complex web of interrelated factors, from farming and food processing methods to factors impacting food distribution and consumption, define the comprehensive landscape of food safety. Regulatory frameworks are essential for reducing risks at every stage of this spectrum. This paper assesses the efficacy of the regulatory body, that is, Punjab Food Authority, in ensuring the safety of the food through an examination of its inspection procedures. This also involves a review of the current working of this authority, aiming to identify gaps for future improvements.

Research on Large-scale Energy Storage of Chinese Power System Based on Demand Analysis

With the construction and development of a low carbon and environmental protection society, China is promoting the construction of a clean, low carbon, safe and efficient energy supply system, the most critical of which is to promote the rapid construction of new energy installed capacity. However, with the continuous expansion of the new energy installed capacity, the random volatility of the power supply has become an important factor that puzzles the power balance of the current power system, not only formed a larger peak pressure, but also became one of the important factors restricting the development of new energy. At the same time, the new energy power electronic equipment has weak supporting characteristics, which also makes the proportion of new energy power system continues to increase, and has a high impact on security. In this context, this paper carries out a demand analysis, firstly discussing the demand for large-scale energy storage in the development of new energy for power system, and secondly analyzing the demand for large-scale energy storage in the safe operation of large power grid, so as to promote the construction of GW-level electrochemical energy storage power station and effectively deal with the power imbalance and safety problems.

A fuzzy logic approach for selecting bearing ring materials in pharmaceutical applications

The present market trend of prioritizing safety and dependability at competitive rates has prompted the pharmaceutical and medical sectors to search more biocompatible, sustainable, and safe supplies. This paper seeks to achieve the most demanding criteria for pharmaceutical product safety, production capabilities, and performance standards. Hence, in order to avoid contamination, these sectors have set strict controls on the materials used in the manufacture of pharmaceutical and medical equipment. The purpose of this work is to introduce the FAHP-FTOPSIS technique, which offers an innovative and systematic way to selecting pharmaceutical bearing materials, filling research gaps, and enhancing pharmaceutical equipment design. The crucial issue of selecting appropriate bearing ring materials for pharmaceutical applications is addressed in this work. This research suggests the use of fuzzy logic as an innovative and successful technique to addressing this issue. Fuzzy logic is used to handle and evaluate linguistic data linked with the performance criteria of various materials such as PEEK, PTFE, Acetal, Stainless Steel, and Nylon6. A preference-based approach was used to conduct a comprehensive analysis of five commonly used materials for bearing rings. This included a direct comparison of different polymers, which are gaining favor in the pharmaceutical device sector, and stainless steel, that have traditionally been used for pharmaceutical equipment. The assessment was performed using the FAHP (Fuzzy Analytical Hierarchy Process), which assigned performance weight criteria as follows: C1 (0.128, 0.153, 0.139), C2 (0.082, 0.041, 0.019), C3 (0.425, 0.107, 0.371), C4 (0.528, 0.215, 0.089), C5 (0.137, 0.072, 0.036), C6 (0.092, 0.153, 0.172), C7 (0.063, 0.049, 0.032), C8 (0.048, 0.25, 0.049), and so on. Then, the FTOPSIS (Fuzzy Technique for Order of Preference by Similarity to Ideal Solution) was used to rank the alternatives, with the following results revealing the order: PEEK > Acetal > Nylon 6 > Stainless Steel > PTFE. This novel technology has the potential to improve the precision of material selection, therefore enhancing the overall efficiency and safety of pharmaceutical equipment and processes. The results clearly indicate that PTFE-based bearings surpass metallic ones in several aspects, including corrosion resistance, quiet operation, and minimal routine maintenance requirements. Remarkably, the calculated weight criteria align closely with the manufacturer's provided data. This innovative hybrid approach, combining FAHP (Fuzzy Analytical Hierarchy Process) and FTOPSIS (Fuzzy Technique for Order of Preference by Similarity to Ideal Solution), has the potential to simplify and optimize new product designs for pharmaceutical devices, reducing costs in the process. These findings highlight the efficacy of the FAHP-FTOPSIS technique in addressing the hitherto unexplored challenge of selecting suitable bearing component materials for specific applications. This approach offers a promising avenue for enhancing pharmaceutical device performance and reliability, marking a significant advancement in this field.

Health risks associated with smoking versus injecting fentanyl among people who use drugs in California

BackgroundGiven the attention, funding, and services that seek to reduce overdose mortality from fentanyl, it is important to understand whether a potential solution is for more people to switch from injecting to smoking fentanyl. As such, we set out to conduct a study to compare health and healthcare utilization outcomes associated with different modes of illicit fentanyl administration. MethodsFrom January to February 2023, we recruited people who use drugs from 34 syringe services programs across California, USA (N=999) and surveyed their substance use, health outcomes, and healthcare utilization. We compared health risks among people who injected fentanyl (78% of whom also smoked) to people who solely smoked fentanyl (n=563). ResultsOf the 563 participants, forty-one percent injected fentanyl and 59% only smoked fentanyl. People who injected fentanyl were 40% more likely to have experienced a non-fatal overdose in the past 3 months (27% vs. 19%; aRR=1.40; 95% CI=1.03, 1.93) and 253% more likely to have had a skin and soft tissue infection in the past 3 months (39% vs. 15%; aRR=2.53; 95% CI=1.74, 3.67), compared to people who only smoked fentanyl. The average number of nights spent in the hospital was higher among people who injected fentanyl (average 1.2 nights vs. 0.7 nights; aIRR=1.78; 95% CI=1.02, 3.09; p=0.04).There were non-significant associations between mode of fentanyl administration and number of emergency department visits and probability of hospitalization. ConclusionsFindings suggested that people who injected fentanyl were at higher risk for overdose and skin and soft tissue infections than people who only smoked fentanyl. Distribution of safe smoking supplies may facilitate transitions from injecting to smoking fentanyl, thereby reducing health risks associated with fentanyl use.

Flexible operation and maintenance optimization of aging cyber-physical energy systems by deep reinforcement learning

Cyber-Physical Energy Systems (CPESs) integrate cyber and hardware components to ensure a reliable and safe physical power production and supply. Renewable Energy Sources (RESs) add uncertainty to energy demand that can be dealt with flexible operation (e.g., load-following) of CPES; at the same time, scenarios that could result in severe consequences due to both component stochastic failures and aging of the cyber system of CPES (commonly overlooked) must be accounted for Operation & Maintenance (O&M) planning. In this paper, we make use of Deep Reinforcement Learning (DRL) to search for the optimal O&M strategy that, not only considers the actual system hardware components health conditions and their Remaining Useful Life (RUL), but also the possible accident scenarios caused by the failures and the aging of the hardware and the cyber components, respectively. The novelty of the work lies in embedding the cyber aging model into the CPES model of production planning and failure process; this model is used to help the RL agent, trained with Proximal Policy Optimization (PPO) and Imitation Learning (IL), finding the proper rejuvenation timing for the cyber system accounting for the uncertainty of the cyber system aging process. An application is provided, with regards to the Advanced Lead-cooled Fast Reactor European Demonstrator (ALFRED).

Qualitative analysis of Canadian blood and plasma donors' views on expanding donor screening eligibility for gay, bisexual, and other men who have sex with men.

In many countries, sexually active gay, bisexual and other men who have sex with men (gbMSM) continue to be screened based on their sex or genderand the sex or gender of their sexual partner. However, there is growing support that screening based on specific sexual behaviors that pose risk of transfusion transmissible infection is a better approach to donor screening. This paper reports results from Phase 1 (qualitative) of a mixed-methods study on Canadian blood and plasma donors' views on expanding eligibility for gbMSM by changing to sexual behavior-based screening. Semistructured interview data with 40 donors (whole blood = 20, plasma = 20; male = 21, female = 18, nonbinary = 1; mean age = 46.2; 10% participation rate) in Canada were analyzed using a thematic approach. All participants, except one, supported the change as they anticipated that at least one of three outcomes would be achieved: increasing blood supply, enhancing equity, and improving or maintaining the safety of blood supply. One donor who was more skeptical of the change questioned the scientific evidence for the change and indicated mistrust of state institutions. The discussion considers implications for blood operators' communication strategies that can be used to reduce donor discomfort with the changes to donor screening. In a nonrandom, purposive sample of 40 Canadian blood and plasma donors, most participants held favorable views regarding expanding the eligibility of gbMSM donors based on sexual risk behavior. Understanding donors' views on increasing eligibility may inform Canadian Blood Services and other blood operators as they develop their communications plans.

Seroprevalence of Dengue Antibodies among Healthy Blood Donors from Sabah, Malaysian Borneo: Blood Safety in Dengue-Endemic Communities

Dengue virus (DENV) infection which is an emerging and resurging mosquito-borne infection is a major public health concern in many countries in the tropics and subtropics. It is the most common arbovirus infection globally, and its incidence has increased dramatically in recent decades. Despite several reported transfusion-transmitted cases, the impact of dengue infection on the safety of the blood supply is still controversial. This study aims to determine the seroprevalence of dengue infection among healthy blood donors from Sabah, Malaysia, an area in Southeast Asia that is endemic to the four serotypes of the dengue virus. A cross-sectional study was conducted among 364 eligible blood donors from the Sabah Women and Children Hospital in Sabah State. Serum samples were examined for the presence of dengue-specific immunoglobulin G (IgG) using an enzyme-linked immunosorbent assay (ELISA). Overall, approximately one-third (36.5%, 133/364) of the participants tested positive for dengue anti-IgG. The prevalence of dengue anti-IgG significantly increased with age, with the lowest prevalence (30.5%) among young adults aged 18 – 26 years and the highest prevalence (73.3%) among those aged 56 – 65 years (χ2 = 10.984; P = 0.027). Likewise, the prevalence was higher among male blood donors (38.9%) compared to female donors (31.3%); however, the difference was not statistically significant (χ2 = 0.295; P = 0.267). The high prevalence of dengue IgG seropositivity among healthy blood donors reflects the high endemicity of dengue disease in this region of Malaysia. The findings suggest the need for blood screening for DENV infection by blood donation services in Malaysia to improve transfusion safety, which is of paramount importance for the recipient.

Hydraulic and Water Quality Simulation in a Drinking Water Supply Network: A Case Study of the Ain Regada Network

Abstract To ensure the quantitative and qualitative safety of the drinking water supply to urban and rural areas, drinking water supply network managers are always concerned to improve the quality of the service provided to consumers and the continuity and quality of the water distributed. They are also concerned to ensure better management of all water supply systems. The development of computer software has made network modelling an essential part of the design and management of water supply systems. In this context, this study focuses on the operation of the Ain Regada water supply network. The simulation of the operation of the network in its current state is carried out using Epanet software.

Hybrid energy storage system and its hardware‐in‐loop platform for 1500‐V metro DC power supply system based on voltage droop control

SummaryHybrid energy storage technology, which consists of lithium‐ion batteries (LiB) and super capacitors (SC), is an effective way to ensure the safety of power supply and realize energy saving in metro by reusing the braking power. Aiming at the optimal configuration and control of the metro hybrid energy storage system (HESS), an energy management strategy (EMS) based on dual DC/DC architecture and voltage droop method is proposed. And then the control parameters are adjusted in segments by combining the DC bus voltage and values of SOC of LiB and SC. What's more, a hardware‐in‐loop (HIL) simulation platform of Metro DC power supply system is built to verify the control strategy. The experimental results show that HESS could stabilize the metro voltage within a safe voltage of 580 V and achieve 100% braking energy recovery by optimal energy distribution between two different types of energy storage systems, which are only 79.9% and 39.2% in other single energy storage system by contrast. At the same time, the HIL simulation platform can be used to verify the control effect of different configuration capacities and different control strategies of the HESS, helping to provide the optimal solution of HESS for actual subway lines.

GASTRONOMY TOURISM PROBLEMS IN SURKHANDARYA

Gastronomy tourism, celebrated for its potential to showcase local culinary traditions and cultural diversity, faces a range of challenges that threaten its authenticity and sustainability. This article explores the multifaceted problems plaguing gastronomy tourism in Surkhandarya, ranging from overcommercialization and cultural appropriation to environmental sustainability concerns and economic disparities. Seasonality, supply chain issues, inadequate infrastructure, health and safety risks, and social impacts further compound these challenges. Nevertheless, there is a path forward, and this article offers a set of recommendations to address these issues and promote sustainable and responsible gastronomy tourism. By embracing these recommendations, the gastronomy tourism industry can not only overcome its problems but also thrive while preserving cultural heritage and benefiting local communities.

Modelling a Consultant Workforce for the United Kingdom: needs-based planning for Dental Public Health.

To develop a needs-based workforce planning model to explore specialist workforce capacity and capability for the effective, efficient, and safe provision of services in the United Kingdom (UK); and test the model using Dental Public Health (DPH). Data from a national workforce survey, national audit, and specialty workshops in 2020 and 2021 set the parameters for a safe effective DPH workforce. A working group drawing on external expertise, developed a conceptual workforce model which informed the mathematical modelling, taking a Markovian approach. The latter enabled the consideration of possible scenarios relating to workforce development. It involved exploration of capacity within each career stage in DPH across a time horizon of 15 years. Workforce capacity requirements were calculated, informed by past principles. Currently an estimated 100 whole time equivalent (WTE) specialists are required to provide a realistic basic capacity nationally for DPH across the UK given the range of organisations, population growth, complexity and diversity of specialty roles. In February 2022 the specialty had 53.55 WTE academic/service consultants, thus a significant gap. The modelling evidence suggests a reduction in DPH specialist capacity towards a steady state in line with the current rate of training, recruitment and retention. The scenario involving increasing training numbers and drawing on other sources of public health trained dentists whilst retaining expertise within DPH has the potential to build workforce capacity. Current capacity is below basic requirements and approaching 'steady state'. Retention and innovative capacity building are required to secure and safeguard the provision of specialist DPH services to meet the needs of the UK health and care systems.

Microplastic pollution in wild and aquacultured Mediterranean mussels from the Sea of Marmara: Abundance, characteristics, and health risk estimations

Microplastic (MP) pollution raises urgent concerns about the environmental well-being and the safety of the food supply for humans. Mussels are essential filter-feeding organisms that may be highly susceptible to MPs uptake due to their global distribution and sedentary lifestyle. There is also a knowledge gap regarding MP levels in commercially-farmed and wild-sourced mussels for human consumption, creating gaps in risk identification for food safety. This study aims to fill this gap in understanding by (a) investigating the presence and abundance of MPs in both wild and aquacultured mussels collected from six different stations in the Sea of Marmara, (b) comparing the levels of MPs between aquacultured and wild mussels, and (c) evaluating the potential health risks associated with the consumption of these contaminated mussels. Polymer types were verified by ATR-FTIR (Attenuated Total Reflectance Fourier Transform- Infrared Spectroscopy), and 6 different polymers have been identified. Among the total 753 identified MPs, the majority (79.8%) were fibers, with the predominant size range (42.4%) falling between 0.1 and 0.5 mm. Consuming wild mussels was associated with a 187.6% higher risk of MP intake compared to aquaculture. A consumer can potentially be exposed to 133.11 to 844.86 MP particles when consuming a 100 g serving of mussels, with risks becoming more significant as portion sizes increase, as is the case in some countries where portions reach 225 g. In this study, detailed information is presented on MP pollution in both wild and aquacultured mussels from Sea of Marmara, providing valuable insights for ensuring food safety, effective management and control of MP pollution in this region.

Appropriate carbon emission from large-scale breeding based on a binary analysis framework of external environmental costs and resource losses

ABSTRACT The emission of greenhouse gases is one of the main reasons for climate change, which comes from partially the agricultural production activities, especially livestock and poultry-scale breeding. Massive breeding of livestock and poultry can ensure the safe supply of meat, but it leads to much carbon emission. On the one hand, it is difficult to get zero carbon emissions based on today’s technology level. On the other hand, the emission shouldn’t be too high. Therefore, it is very necessary to determine appropriate carbon emission criteria and then to ensure the sustainable development of scale breeding farms. In this paper, after modelling resource losses, external environmental costs and carbon emissions, the binary analysis framework of resource losses and external environmental costs of scale-breeding farms was built, and then the relationship between the carbon emission and binary analysis framework was analysed in detail. Then, the criteria for determining moderate carbon emissions have been established. Research studies show that carbon emission decreases with the control of external environmental costs and resource losses. And the appropriate carbon emission can be determined when two subsystems of internal resource usage and external environment are in dynamic equilibrium.

Characterizing prescription opioid, heroin, and fentanyl initiation trajectories: A qualitative study

We understand the current crisis of overdose deaths to be driven by widespread opioid use, characterized by distinct ‘waves’ of drug use. The first wave was driven by prescription opioids, the second by heroin, and the third by illicit, non-pharmaceutical fentanyl and fentanyl analogues (henceforth, fentanyl). The purpose of this study is to describe opioid initiation within each of the three waves from the perspective of people who use illicit opioids, with a focus on emerging pathways into fentanyl use. The authors recruited sixty people reporting past-30-day illicit opioid use in Dayton, Ohio. Participants completed a brief survey and a semi-structured in-depth qualitative interview, conducted from March to November 2020 with a total of 13 in-person and 47 virtual interviews. The qualitative interviews were transcribed in their entirety and analyzed thematically using NVivo 12. We noted supply-side changes as influencing trajectories in all three waves. However, we also noted differences in the experiences of prescription opioid and heroin initiation, with these trajectories influenced by pharmacological effects, pain management, curiosity, intergenerational use, pricing, and peers. In comparison, most participants were unaware that they were initiating fentanyl, and many reported overdosing with their first use of fentanyl. We identified a trajectory into fentanyl with limited to no prior heroin use among a few participants. The increased risk of overdose with initiation into fentanyl use further emphasizes the need for an expansion of naloxone distribution and the implementation of more comprehensive measures, such as overdose prevention centers, drug testing, and a safer supply. Further research on the dynamics of the ongoing overdose death crisis in the era of fentanyl and the 4th wave of the overdose crisis is critical in developing responsive prevention and intervention strategies.

Insects as Valuable Sources of Protein and Peptides: Production, Functional Properties, and Challenges.

As the global population approaches 10 billion by 2050, the critical need to ensure food security becomes increasingly pronounced. In response to the urgent problems posed by global population growth, our study adds to the growing body of knowledge in the field of alternative proteins, entomophagy, insect-based bioactive proteolysates, and peptides. It also provides novel insights with essential outcomes for guaranteeing a safe and sustainable food supply in the face of rising global population demands. These results offer insightful information to researchers and policymakers tackling the intricate relationship between population expansion and food supplies. Unfortunately, conventional agricultural practices are proving insufficient in meeting these demands. Pursuing alternative proteins and eco-friendly food production methods has gained urgency, embracing plant-based proteins, cultivated meat, fermentation, and precision agriculture. In this context, insect farming emerges as a promising strategy to upcycle agri-food waste into nutritious protein and fat, meeting diverse nutritional needs sustainably. A thorough analysis was conducted to evaluate the viability of insect farming, investigate insect nutrition, and review the techniques and functional properties of protein isolation. A review of peptide generation from insects was conducted, covering issues related to hydrolysate production, protein extraction, and peptide identification. The study addresses the nutritional value and global entomophagy habits to elucidate the potential of insects as sources of peptides and protein. This inquiry covers protein and hydrolysate production, highlighting techniques and bioactive peptides. Functional properties of insect proteins' solubility, emulsification, foaming, gelation, water-holding, and oil absorption are investigated. Furthermore, sensory aspects of insect-fortified foods as well as challenges, including Halal and Kosher considerations, are explored across applications. Our review underscores insects' promise as sustainable protein and peptide contributors, offering recommendations for further research to unlock their full potential.

Pollution and Ecological Risk Assessment of Metal Elements in Groundwater in the Ibinur Lake Basin of NW China

Groundwater pollution by metal elements is a serious issue due to its probable risks to the ecosystem and human health. In the present study, 75 groundwater samples were collected from the Ibinur Lake Basin (ILB) of NW China. The contents of As, Se, Pb, Cu, Cr(Ⅵ), Zn, Mn, and Cd were determined. The levels, pollution degrees, and potential ecological risks of metals in groundwater were systematically analyzed for the first time in this area. The potential sources of metals were also discussed. It was observed that the mean contents of metals in groundwater in the ILB were lower than the Class III thresholds of the Standard for Groundwater Quality of China (GB/T 14848–2017), whereas the maximum contents of As, Se, Pb, Cr(Ⅵ), and Mn exceeded the Class III thresholds values. The pollution index of each metal and the Nemerow comprehensive index (NPI) caused by the overall pollution by all these metals in groundwater showed the pollution-free level. The single and comprehensive potential ecological risk index of analyzed metals in groundwater showed a relatively low level of potential ecological risk. Additionally, spatial distribution patterns of contents, pollution levels, and ecological risks of metals in groundwater in the ILB were found to be substantially heterogeneous. Furthermore, As and Se in groundwater originated from anthropogenic sources such as agriculture and mining, whereas Mn mainly originated from natural factors, and Pb, Cu, Cr(Ⅵ), Zn, and Cd were correlated with both natural and anthropogenic sources. Overall, As was identified as the main pollution factor, while As and Se were identified as the main ecological risk factors in the groundwater in the ILB. These results can provide important information for groundwater management in the ILB and will guide authorities in taking the necessary measures to ensure the safety of groundwater supply in the northwestern arid regions of China.

Intelligent real-time scheduling of water supply network based on deep learning

Abstract Inappropriate scheduling plans can result in additional economic losses and the safety of water distribution network (WDN). Optimizing manual experience based scheduling plans can help water utilities rationally allocate water plants and pump stations, ensuring the safety, stability, and economy of the water supply system. However, there is a lack of real-time, rational, and optimized scheduling methods. To address this, we proposed a novel intelligent scheduling framework based on deep learning. In this framework, two neural network models, multi-heads convolutional gated recurrent unit network (MH-CGRU) and multi-head gated recurrent unit network (MH-GRU), can effectively extract key features from the WDNs. Operating data were used as decision variables to predict and generate scheduling orders for water plants and pump stations, respectively. The rationality of the orders is verified by combining a high precision online hydraulic model and the evaluation of the operational status of the WDNs. This system has been deployed in a real WDN and put into practical application. From June to November of 2022, the total adoption rate of all orders reached 96.29%, with the average deviation between predicted and actual control targets being less than 5%, and energy consumption decreased by 3.05% compared to the previous year.