keyword
https://read.qxmd.com/read/38482340/a-review-of-computational-modeling-in-wastewater-treatment-processes
#21
REVIEW
M Salomé Duarte, Gilberto Martins, Pedro Oliveira, Bruno Fernandes, Eugénio C Ferreira, M Madalena Alves, Frederico Lopes, M Alcina Pereira, Paulo Novais
Wastewater treatment companies are facing several challenges related to the optimization of energy efficiency, meeting more restricted water quality standards, and resource recovery potential. Over the past decades, computational models have gained recognition as effective tools for addressing some of these challenges, contributing to the economic and operational efficiencies of wastewater treatment plants (WWTPs). To predict the performance of WWTPs, numerous deterministic, stochastic, and time series-based models have been developed...
March 8, 2024: ACS ES&T water
https://read.qxmd.com/read/38482066/shock-induced-plastic-deformation-of-nanopowder-ti-during-consolidation-and-spallation
#22
JOURNAL ARTICLE
Debing He, Mingyang Wang, Wenbo Bi, Liang Wang
Consolidating nanopowder metals via impact loading is a potentially significant method for synthesizing and processing bulk nanocrystalline materials. However, until now, the microstructural features, plastic deformation during consolidation, and corresponding mechanisms have been seldom revealed. Using molecular dynamics (MD) simulations, we have studied the plastic deformation, densification, spallation, and micro-jetting in nanopowder titanium (np-Ti) during shock. Upon impact, np-Ti undergoes a transition from heterogeneous plasticity, including basal stacking faults (SFs) and {101̄2} twinning, to homogeneous disordering, as the impact velocity increases...
March 6, 2024: RSC Advances
https://read.qxmd.com/read/38481751/feature-engineering-and-supervised-machine-learning-to-forecast-biogas-production-during-municipal-anaerobic-co-digestion
#23
JOURNAL ARTICLE
Hunter W Schroer, Craig L Just
Municipalities with excess anaerobic digestion capacity accept offsite wastes for co-digestion to meet sustainability goals and create more biogas. Despite the benefits inherent to co-digestion, the temporal and compositional heterogeneity of external waste streams creates operational challenges that lead to upsets or conservative co-digestion. Given the complex microbial bioprocesses occurring during anaerobic digestion, prediction and modeling of the outcomes can be challenging, and machine learning has the potential to improve understanding and control of co-digestion processes...
March 8, 2024: ACS ES T Eng
https://read.qxmd.com/read/38481569/use-of-patellofemoral-digital-twins-for-patellar-tracking-and-treatment-prediction-comparison-of-3d-models-and-contact-detection-algorithms
#24
JOURNAL ARTICLE
Florian Michaud, Alberto Luaces, Francisco Mouzo, Javier Cuadrado
Introduction: Poor patellar tracking can result in painful contact pressures, patella subluxation, or dislocation. The use of musculoskeletal models and simulations in orthopedic surgeries allows for objective predictions of post-treatment function, empowering clinicians to explore diverse treatment options for patients. Although a promising approach for managing knee surgeries, the high computational cost of the Finite Element Method hampers its clinical usability. In anticipation of minimal elastic deformations in the involved bodies, the exploration of the Multibody Dynamics approach emerged as a viable solution, providing a computationally efficient methodology to address clinical concerns related to the knee joint...
2024: Frontiers in Bioengineering and Biotechnology
https://read.qxmd.com/read/38480692/can-flow-proneness-be-protective-against-mental-and-cardiovascular-health-problems-a-genetically-informed-prospective-cohort-study
#25
JOURNAL ARTICLE
Emma Gaston, Fredrik Ullén, Laura W Wesseldijk, Miriam A Mosing
Flow is a phenomenon where one experiences optimal challenge, marked by an intense, effortless, and rewarding concentration on a task. Past research shows that flow proneness is associated with good mental and cardiovascular health. However, this research has been primarily cross-sectional, based on self-report data, and has not controlled for potential confounding effects of neuroticism. In a large, longitudinal twin sample (N = 9361), we used nationwide patient registry data to test whether flow proneness predicted registry-based diagnoses of depression, anxiety, schizophrenia, bipolar disorder, stress-related disorders, or cardiovascular diseases...
March 13, 2024: Translational Psychiatry
https://read.qxmd.com/read/38478492/the-relationship-between-personality-throughout-adolescence-and-social-anxiety-disorder-in-young-adulthood-a-longitudinal-twin-study
#26
JOURNAL ARTICLE
Eirunn Skaug, Trine Waaktaar, Svenn Torgersen
This study examined the longitudinal relationship between a range of personality related variables measured throughout adolescence, and social anxiety disorder (SAD) in young adulthood. In addition, we examined to what degree the phenotypic associations between personality and SAD could be attributed to shared genetic and environmental factors, respectively. A total of 3394 twins (56% females), consisting of seven national birth cohorts from Norway, participated in the study. Personality was measured with self-report questionnaires at three times throughout adolescence, and SAD was measured with a diagnostic interview in early adulthood (M = 19...
2024: PloS One
https://read.qxmd.com/read/38477889/adolescent-psychedelic-use-and-psychotic-or-manic-symptoms
#27
JOURNAL ARTICLE
Otto Simonsson, Miriam A Mosing, Walter Osika, Fredrik Ullén, Henrik Larsson, Yi Lu, Laura W Wesseldijk
IMPORTANCE: While psychedelic-assisted therapy has shown promise in the treatment of certain psychiatric disorders, little is known about the potential risk of psychotic or manic symptoms following naturalistic psychedelic use, especially among adolescents. OBJECTIVE: To investigate associations between naturalistic psychedelic use and self-reported psychotic or manic symptoms in adolescents using a genetically informative design. DESIGN, SETTING, AND PARTICIPANTS: This study included a large sample of adolescent twins (assessed at age 15, 18, and 24 years) born between July 1992 and December 2005 from the Swedish Twin Registry and cross-sectionally evaluated the associations between past psychedelic use and psychotic or manic symptoms at age 15 years...
March 13, 2024: JAMA Psychiatry
https://read.qxmd.com/read/38476656/tackling-the-twin-threats-of-pandemics-and-climate-change-an-agenda-for-action
#28
JOURNAL ARTICLE
Jean Kaseya, Yewande Alimi, Aggrey Aluso, Mahlet K Habtemariam, Trevor A Crowell, Alain Ngashi Ngongo, Yenew Kebede, Nicaise Ndembi
No abstract text is available yet for this article.
October 31, 2023: Journal of Public Health in Africa
https://read.qxmd.com/read/38476045/reciprocal-effects-between-negative-parenting-and-children-s-callous-unemotional-traits-from-mid-to-late-childhood
#29
JOURNAL ARTICLE
Patrizia Pezzoli, Jean-Baptiste Pingault, Margherita Malanchini, Ivan Voronin, Eamon McCrory, Pasco Fearon, Essi Viding
OBJECTIVE: The role of negative parenting in the development of callous-unemotional (CU) traits remains unclear. Both negative parenting and CU traits are influenced by genetic and environmental factors. The authors used genetically informed longitudinal cross-lagged models to examine the extent to which reciprocal effects between negative parenting and children's CU traits in mid-to-late childhood are genetic versus environmental in origin. METHODS: In 9,260 twin pairs from the Twins Early Development Study, the authors estimated cross-lagged effects between negative parenting (discipline and feelings) and children's CU traits in mid (ages 7-9) and late (ages 9-12) childhood...
March 13, 2024: American Journal of Psychiatry
https://read.qxmd.com/read/38475809/the-effect-of-parity-on-time-to-initiate-complementary-feeding-among-mother-infant-pairs-in-awi-zone-northwest-ethiopia
#30
JOURNAL ARTICLE
Tilahun Degu Tsega, Gashaw Melkie Bayeh, Kassaye Demeke Alemu, Abaynew Assemu Asrade, Abebaw Molla Kebede, Tamiru Alene, Zewdu Bishaw Aynalem, Bezawit Adane, Melaku Yalew, Molla Getie Mehari, Almaw Genet Yeshiwas, Tadesse Miretie Dessie, Eniyew Talie Fenta, Kefale Mitiku Haylu
INTRODUCTION: Despite strategies and recommendations for complementary feeding initiation were applied globally, mothers initiated complementary feeding to the infants on time was low. Previous works of literatures were not identified the effect of parity on time to initiate complementary feeding. Particularly, evidences regarding to this in Ethiopia is scanty. Therefore, this study aimed to identify the effect of parity on time to initiate complementary feeding among mother-infants pairs in Northwest Ethiopia...
March 13, 2024: Italian Journal of Pediatrics
https://read.qxmd.com/read/38475201/trends-in-digital-twin-framework-architectures-for-smart-cities-a-case-study-in-smart-mobility
#31
REVIEW
Evanthia Faliagka, Eleni Christopoulou, Dimitrios Ringas, Tanya Politi, Nikos Kostis, Dimitris Leonardos, Christos Tranoris, Christos P Antonopoulos, Spyros Denazis, Nikolaos Voros
The main aim of this paper is to present an innovative approach to addressing the challenges of smart mobility exploiting digital twins within the METACITIES initiative. We have worked on this issue due to the increasing complexity of urban transportation systems, coupled with the urgent need to improve efficiency, safety, and sustainability in cities. The work presented in this paper is part of the project METACITIES, an Excellence Hub that spans a large geographical area, that of Southeastern Europe. The approach of the Greek innovation ecosystem of METACITIES involves leveraging digital twin technology to create intelligent replicas of urban mobility environments, enabling real-time monitoring, analysis, and decision making...
March 4, 2024: Sensors
https://read.qxmd.com/read/38475104/digital-twin-platform-for-water-treatment-plants-using-microservices-architecture
#32
JOURNAL ARTICLE
Carlos Rodríguez-Alonso, Iván Pena-Regueiro, Óscar García
The effects of climate change and the rapid growth of societies often lead to water scarcity and inadequate water quality, resulting in a significant number of diseases. The digitalization of infrastructure and the use of Digital Twins are presented as alternatives for optimizing resources and the necessary infrastructure in the water cycle. This paper presents a framework for the development of a Digital Twin platform for a wastewater treatment plant, based on a microservices architecture which optimized its design for edge computing implementation...
February 29, 2024: Sensors
https://read.qxmd.com/read/38474970/from-sensors-to-digital-twins-toward-an-iterative-approach-for-existing-manufacturing-systems
#33
JOURNAL ARTICLE
Dimitri Renard, Ramla Saddem, David Annebicque, Bernard Riera
Digital twin technology is a highly valued asset in the manufacturing sector, with its unique capability to bridge the gap between the physical and virtual parts. The impact of the rapid increase in this technology is based on the collection of real-world data, its standardization, and its widespread deployment on an existing manufacturing system. This encompasses sensor values, PLC internal states, and IoT, as well as how the means of linking these data with their digital counterparts. It is challenging to implement digital twins on a large scale due to the heterogeneity of protocols and data structuring of subsystems...
February 23, 2024: Sensors
https://read.qxmd.com/read/38474941/advancing-digital-twin-based-collision-avoidance-a-comprehensive-analysis-of-communication-networks-for-safety-critical-applications-in-industry-4-0
#34
JOURNAL ARTICLE
Christian Moldovan, Silas Ulrich, Volker Köster, Janis Tiemann, Andreas Lewandowski
This study presents a theoretical framework for defining the performance level of wireless safety functions within industrial environments. While acknowledging the simplifications inherent in our approach-primarily based on packet loss rates as a measure of system performance-the study underscores the dynamic challenges posed by real-world warehouses. Through an in situ measurement study of a forklift truck safety system, we validate the proposed method and emphasize the need for a more nuanced examination of wireless communication in complex settings...
February 22, 2024: Sensors
https://read.qxmd.com/read/38474896/digital-twin-of-a-water-supply-system-using-the-asset-administration-shell
#35
JOURNAL ARTICLE
Salvatore Cavalieri, Salvatore Gambadoro
The concept of digital twins is one of the fundamental pillars of Industry 4.0. Digital twin allows the realization of a virtual model of a real system, enhancing the relevant performance (e.g., in terms of production rate, risk prevention, energy saving, and maintenance operation). Current literature presents many contributions pointing out the advantages that may be achieved by the definition of a digital twin of a water supply system. The Reference Architecture Model for Industry 4.0 introduces the concept of the Asset Administration Shell for the digital representation of components within the Industry 4...
February 20, 2024: Sensors
https://read.qxmd.com/read/38473885/a-mass-spectrometry-based-proteome-study-of-twin-pairs-discordant-for-incident-acute-myocardial-infarction-within-three-years-after-blood-sampling-suggests-novel-biomarkers
#36
JOURNAL ARTICLE
Hans Christian Beck, Asmus Cosmos Skovgaard, Afsaneh Mohammadnejad, Nicolai Bjødstrup Palstrøm, Palle Fruekilde Nielsen, Jonas Mengel-From, Jacob Hjelmborg, Lars Melholt Rasmussen, Mette Soerensen
Acute myocardial infarction (AMI) is a major cause of mortality and morbidity worldwide, yet biomarkers for AMI in the short- or medium-term are lacking. We apply the discordant twin pair design, reducing genetic and environmental confounding, by linking nationwide registry data on AMI diagnoses to a survey of 12,349 twins, thereby identifying 39 twin pairs (48-79 years) discordant for their first-ever AMI within three years after blood sampling. Mass spectrometry of blood plasma identified 715 proteins. Among 363 proteins with a call rate > 50%, imputation and stratified Cox regression analysis revealed seven significant proteins (FDR < 0...
February 24, 2024: International Journal of Molecular Sciences
https://read.qxmd.com/read/38473683/biocomposites-based-on-wheat-flour-with-urea-based-eutectic-plasticizer-and-spent-coffee-grounds-preparation-physicochemical-characterization-and-study-of-their-influence-on-plant-growth
#37
JOURNAL ARTICLE
Magdalena Zdanowicz, Marta Rokosa, Magdalena Pieczykolan, Adrian Krzysztof Antosik, Katarzyna Skórczewska
In this study, we conducted the first plasticization of wheat flour (WF) with the addition of choline chloride:urea (1:5 molar ratio) eutectic mixture as a plasticizer and spent coffee grounds (cf) as a filler. Thermoplastic wheat flour (TPWF) films were obtained via twin-screw extrusion and then thermocompression. Their physicochemical characterization included mechanical tests, dynamic mechanical thermal analysis (DMTA), and sorption tests. XRD analysis revealed that the eutectic plasticizer led to a high degree of WF amorphization, which affected the physicochemical properties of TPWF...
March 6, 2024: Materials
https://read.qxmd.com/read/38473605/evolution-of-grain-boundary-character-distribution-in-b10-alloy-from-friction-stir-processing-to-annealing-treatment
#38
JOURNAL ARTICLE
Wen Feng, Junjie Zhou, Shihao Wang, Ting Sun, Tianyu Zhao, Yingying Jiang
In this study, the grain boundary character distribution (GBCD) of a B10 alloy was optimized, employing thermomechanical processing consisting of friction stirring processing (FSP) and annealing treatment. Using electron backscatter diffraction, the effects of rotational speed of FSP and annealing time on the evolution of GBCD were systematically investigated. The GBCD evolution was analyzed concerning various parameters, such as the fraction of low-Σ coincidence site lattice (CSL) boundaries, the average number of grains per twin-related domain (TRD), the length of longest chain (LLC), and the triple junction distribution...
February 29, 2024: Materials
https://read.qxmd.com/read/38473484/effect-of-manganese-on-the-strength-toughness-relationship-of-low-carbon-copper-and-nickel-containing-hull-steel
#39
JOURNAL ARTICLE
Zhide Zhan, Zhongran Shi, Zemin Wang, Wenjing Lu, Zuoning Chen, Dian Zhang, Feng Chai, Xiaobing Luo
The influence of varying the manganese (Mn) contents of high-strength copper-containing hull steel on its microstructural evolution and mechanical properties was investigated. With increasing Mn content from 2 to 5%, the tensile strength of the steel increased by ~100 MPa, while the elongation of steel remained at ~23.5%, indicating good plasticity. However, the 2Mn sample had 128 J higher low-temperature (-84 °C) impact work than the 5Mn sample. The microstructures of different Mn steels were composed of fresh martensite (FM), ferrite/tempered martensite (F/TM), and reversed austenite (RA)...
February 22, 2024: Materials
https://read.qxmd.com/read/38473441/deformation-behavior-and-microstructure-of-6061-aluminum-alloy-processed-by-severe-plastic-deformation-using-biaxial-alternate-forging
#40
JOURNAL ARTICLE
Seong-Ho Ha, Young-Chul Shin
The deformation behavior and microstructure of 6061 aluminum alloy processed by severe plastic deformation (SPD) using biaxial alternate forging that can evaluate the forming limit and mechanical properties of alloys, simultaneously, were investigated in this study. A finite element (FE) analysis on the biaxial alternating forging process, considering the strain-hardening coefficient and forging pass of the material, was conducted. When the strain-hardening coefficient is 0, an average effective strain of 440% was found within a diameter of 4 mm in the core of the workpiece after eight passes, while it was 300% at the same pass number when the strain-hardening coefficient was 0...
February 20, 2024: Materials
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