Assessment Methods Research Articles

Risk Assessment Method for Forecasting Time-Dependent Aging Effects on Corrosion Rate: Preemptive Bridge Assets Management

Risk Assessment Method for Forecasting Time-Dependent Aging Effects on Corrosion Rate: Preemptive Bridge Assets Management

Quantitative assessment of double-cone seal leakage in canned reactor coolant pump based on double-cone ring stress

The double-cone seal is a crucial component of the canned reactor coolant pump (RCP), serving as a vital barrier to prevent coolant leakage. Its sealing status directly impacts the operational safety of the RCP. Given the intricate operational conditions and rigorous sealing requirements of RCP, there is a dearth of effective detection methods for minor leakage of double-cone seal. To address this issue, a quantitative assessment method for the leakage of double-cone seal based on double-cone ring stress is proposed. In this paper, the functional relationship between the double-cone ring stress and the specific pressure of the gasket seal is first derived. Subsequently, a leakage rate assessment model based on the double-cone ring stress is proposed by combining with the leakage rate expression of the metal gasket connection structure. Finally, the feasibility of the proposed method for the leakage detection of double-cone seal is verified by finite element simulation and leakage simulation test. The results demonstrate that the proposed method is capable of detecting small leakage conditions with a leakage rate in the order of 1 × 10−4 cm3·s−1, which is sufficient for the micro-leakage detection of double-cone seal.

Burst failure analysis of PVC-UH pipes with axial surface crack based on multiple methodologies

High-performance unplasticized polyvinyl chloride (PVC-UH) offers superior strength and performance compared to PVC, making it a common choice for municipal water supply pipelines. Cracks in PVC-UH pipes are challenging to prevent throughout the entire production and maintenance process. Precise and applicable failure assessment and residual bearing capacity calculation methodology are crucial for ensuring the safe operation and maintenance of PVC-UH municipal water supply pipes. To this end, this paper conducted material uniaxial tensile tests, fracture toughness tests, and pipe burst tests. The study determined the true stress–strain relationship, fracture toughness, burst pressure, and fracture morphology of PVC-UH pipes through testing. Failure pressures of cracked PVC-UH pipes were forecasted using different methodologies, and their accuracy and applicability were evaluated by comparing predicted values with the results of bursting tests. Two calculation methods for determining the failure pressure of pipelines with an axial outer surface crack are proposed based on plastic deformation, damage factor, and fracture mechanics theory. These proposed calculation methods are compared against current methods for determining the failure pressure of pipelines with crack defects, highlighting the higher accuracy of the methods introduced in this paper. The research results can serve as a reference for selecting failure assessment methods for PVC-UH pipelines. Additionally, the proposed calculation methods can accurately and rapidly predict the failure pressure of pipelines with identified axial surface crack sizes, providing technical support for engineering safety assessments of PVC-UH pipelines.

Development of a Novel Male Reproductive Toxicity Assessment Method to Predict Male-mediated Effects on the Next Generation

Less than 10% of the candidate drug compounds are associated with male reproductive toxicity. Genetic and/or epigenetic information on sperm may be crucial for fetal development. Therefore, developmental toxicity, such as paternally transmitted birth defects, is possible if genetic abnormalities in the male germ line persist and accumulate in the sperm during spermatogenesis. First, this study provides an overview of chemical and male reproductive toxicity, which may lead to developmental toxicity from the perspective of male reproduction. Second, we demonstrate methods for evaluating male reproductive toxicity to anticipate male-mediated developmental toxicity. We developed a novel staining technique for evaluating sperm quality, as well as a noninvasive imaging analysis of male reproductive toxicity. The former is a mammalian male germ cell-specific staining method using reactive blue 2 dye (RB2), as previously confirmed in human sperm, and a method for detecting the early-stage DNA fragmentation in a single nucleus from mouse spermatozoa using single-cell pulsed-field gel electrophoresis. The latter is a new, ready-to-use, and compact magnetic resonance imaging (MRI) platform utilizing a high-field permanent magnet to evaluate male reproductive toxicity. The histopathological analysis supported the suitability of the MRI platform. The present study, for the first time, revealed a rapid, noninvasive evaluation of male reproductive toxicity in vivo using compact MRI. These novel toxicity assessments can help predict male-mediated developmental toxicity, contributing to accelerated drug discovery and drug repositioning.

Healthcare providers' perceptions of infant physical activity and communication.

Healthcare providers (HPs) play a critical role in disseminating information about infant health and development. Two key developmental areas for infants are physical activity (PA) and communication. Few studies have examined HPs views of these topics. Thus, HPs may need support to promote these early development outcomes in infants. Thus, the study explored HPs' perceptions of infant PA and communication. A total of 13 HPs with a wide variety of backgrounds were recruited. Zoom semi-structured interviews were based on the Health Belief Model. Deductive content analysis was utilized to analyze data. HPs knew little about PA guidelines. HPs were concerned about an infant's PA because of limited playtime and tummy time. Most HPs advised parents on PA and motor development milestones, with crawling, walking, and tummy time. HPs also wanted to learn about PA measurement tools. PA promotion was hindered by parents' busy schedules, lack of time, and language barriers. Most HPs advised parents on verbal and nonverbal communication. Many HPs were unfamiliar with communication assessment methods and wanted to learn more. HPs had limited knowledge about PA guidelines and communication measurement tools. Efforts are needed to identify easily accessible ways to educate HPs that could be disseminated to parents.

Contaminant mass discharge estimation of a sulfonamide plume by use of hydraulic profiling tool (HPT) and fluorescence techniques

The contaminant mass discharge is a relevant metric to evaluate the risk that a groundwater plume poses to water resources. However, this assessment is often vitiated by a high uncertainty inherent to the assessment method and often limited number of measurement points to carry out the assessment. Direct-Push techniques in combination with profiling tools and dedicated sampling can be an interesting alternative to increase the measurement point density and hence reduce the mass discharge uncertainty. The main objective of our study was to assess if DP logging and sampling could be employed to get a reasonable estimate of contaminant mass discharge in a large sulfonamide contaminant plume (> 1500 m wide), compared to a more traditional approach based on monitoring wells. To do so, an Hydraulic Profiling Tool (HPT) logging with a dedicated site calibration was used to estimate the hydraulic conductivity field. The sulfonamide concentrations were inferred from the compound fluorescence properties measured by laboratory spectrofluorometry (λEx / λEm = 255/340 nm) and a dedicated log-log linear regression model. Our results show that HPT-derived hydraulic conductivity values are in good agreement with the monitoring well results, and within the order of magnitude reported in similar studies or indirect geophysical techniques. Fluorescence appears as a powerful proxy for the sulfonamide concentration levels. Ultimately, the contaminant mass discharge estimate from HPT and fluorescence techniques lies within a factor 2 from the estimate by monitoring wells, with549 [274–668] and 776 [695–879] kg/yr respectively. Overall, this study highlights that DP logging tools combined with indirect methods (correlation with fluorescence) could provide a relevant contaminant mass discharge estimate for some optically active substances, given that a proper calibration phase is carried out.

Prediction of Failure Due to Fatigue of Wire Arc Additive Manufacturing-Manufactured Product

Currently, the focus of production is shifting towards the use of innovative manufacturing techniques and away from traditional methods. Additive manufacturing technologies hold great promise for creating industrial products. The industry aims to enhance the reliability of individual components and structural elements, as well as the ability to accurately anticipate component failure, particularly due to fatigue. This paper explores the possibility of predicting component failure in parts produced using the WAAM (wire arc additive manufacturing) method by employing fractal dimension analysis. Additionally, the impact of manufacturing imperfections and various heat treatment processes on the fatigue resistance of 30CrMnSi steel has been investigated. Fatigue testing of samples and actual components fabricated via the WAAM process was conducted in this study. The destruction of the examined specimens and products was predicted by evaluating the fractal dimensions of micrographs acquired at different stages of fatigue testing. It has been established that technological defects are more dangerous in terms of fatigue failure than microstructural ones. The correctly selected mode of heat treatment for metal after electric arc welding allows for a more homogeneous microstructure with a near-complete absence of microstructural defects. A comparison of the fractal dimension method with other damage assessment methods shows that it has high accuracy in predicting part failure and is less labor-intensive than other methods.

A method for rapid assessment of visual ergonomics and lighting conditions (RAVEL): An in-depth development and psychometrics study

BACKGROUND: In workplaces heavily reliant on visual tasks, various factors can significantly influence an individual’s performance, necessitating the use of reliable tools to identify and mitigate these factors. OBJECTIVE: This study aimed to develop a swift assessment method for visual ergonomics and lighting conditions, evaluating its validity in real-world scenarios. METHODS: The questionnaire’s content validity was determined by a panel of experts using the content validity ratio (CVR) and content validity index (CVI). Construct validity was assessed through exploratory factor analysis (EFA), confirmatory factor analysis (CFA), and latent class analysis (LCA). Internal consistency was measured using Cronbach’s alpha coefficient. The RAVEL index, derived from the calculated effect coefficients of items, classified total scores through receiver operator curves (ROCs). RESULTS: The rapid assessment method, comprising two parts with 30 items, demonstrated acceptable reliability with CVR, CVI, and Cronbach’s alpha coefficient (α) at 0.75, 0.87, and 0.896, respectively. The EFA on the first part’s 22 items identified three factors, confirmed by CFA. The LCA on the second part’s eight items revealed that a two-class model best fit the data, with Bayesian information criterion (BIC) = 24249, 17, Akaik information criterion (AIC) = 2179.89, and an entropy R-squared of 0.83, indicating appropriate subject classification based on the model. The RAVEL score was categorized into three levels, with optimal cut points of 55 and 63. CONCLUSIONS: In conclusion, the study demonstrated that this method based on visual ergonomics serves as a rapid and reliable tool for assessing visual ergonomic risks of display users in the workplace.

GHG emission quantification and reduction pathway of subway shield tunnel engineering: a case study on Guangzhou Metro, China.

The shield method is a commonly used construction technique in subway tunnel engineering. However, studies on greenhouse gas (GHG) emissions specifically in subway shield tunnel engineering are lacking. This study aims to investigate the GHG emission characteristics and GHG reduction pathways during the construction period of subway shield tunnels. Firstly, based on the life cycle assessment (LCA) method, a greenhouse gas (GHG) emission quantification model for the shield tunnel construction period was developed using a multi-level decomposition of construction. Then, the GHG emission level and intensity during the construction period of a case project are quantified, and its emission characteristics and GHG reduction potential points are assessed. Finally, a comprehensive path for GHG reduction in subway shield tunnel engineering is proposed. The research results indicate that constructing 1 km of subway shield tunnel can generate 19,294.28 t CO2eq. Among these, material production element dominates the emissions with a percentage of 89.05%, while transportation and mechanical construction elements contribute 1.81% and 9.14%, respectively. From the structure perspective, the main structure contributes 88.73% of total emissions, while the ancillary structure contributes 11.27%. Among them, the working shaft and tunnel segments are the main sources of emissions for the main structure, accounting for 23.65% and 65.08%, respectively. Connecting channel and end reinforcement are the main emission sources of the ancillary structures, accounting for 43.63% and 31.30%, respectively. These findings provide a scientific foundation for the environmentally friendly transformation of urban railway development regarding pursuing "carbon peaking and carbon neutrality" strategic goals.

Quantifying carbon footprint of salmon fillet processed in Vietnam: impact of transportation and improvement opportunities.

The carbon footprint of a product represents the amount of greenhouse gas (GHG) emissions released during its production, transportation, and consumption and is calculated as carbon dioxide equivalent (CO2-eq). It should be integrated into different existing and future seafood awareness campaigns to create more holistic yardsticks by which consumers, retail businesses, and producers can assess the environmental impacts of seafood. This study used the life cycle assessment (LCA) method for the first time to quantify the carbon footprint of salmon fillet products processed in Vietnam for export. The carbon footprint of 1-kg salmon fillet at the factory gate ranges between 7.20 and 15.05kg CO2-eq, depending on transportation modes of head-on-gutted (HOG) salmon from Norway to Vietnam. Transportatiton by airfreight doubled carbon footprint of salmon fillet products processed in Vietnam compared to sea freight. Feed and electricity were identified as the two most respective contributing factors during the stage of cultivation, processing fresh salmon in Norway, and the stage of salmon fillet processing in Vietnam. They accounted for about 95% and 50% of the total carbon footprint in these stages of the production chain, respectively. To reduce the carbon footprint of the salmon fillet products processed in Vietnam, the company should (i) make a careful production plan to use sea freight transportation instead of airfreight and (ii) use more electricity from renewable energy sources. Furthermore, the carbon footprint of these products can be reduced by improving the cultivation process via changing feed ingredients and enhancing the feed conversion ratio (FCR).

Assessment of social and personal manifestations of adolescents interested in youth subculture

Introduction. The problem of the study is related to the idea of peculiarities of socialization as the formation of adolescents’ personality. The solution to this problem is necessary to prevent the negative impact of the subculture on the personality of the adolescent in the learning environment. According to the age specificity, an adolescent pays special attention to the reaction of their peers. Having identified themselves as members of social groups, adolescents put this identification into the scheme of self-awareness and begin to ‘bring’ themselves into ‘conformity with the group’. Deep and long involvement in the informal movement determines the interiorization of the group’s value system and changes in the adolescent’s worldview. In this regard, the purpose of this study is to identify social and personal manifestations of adolescents who are interested in youth subculture. Materials and Methods. The study follows personality-oriented and cognitive approaches. In order to achieve the goal of the study, the authors used theoretical (analysis, generalization, systematization) and empirical (testing, conversations, questionnaires, expert assessments) methods. The sample included 85 Year 10 students of secondary educational institutions in the Krasnodar Territory (Russia). Results. The article presents a theoretical analysis of approaches to the problem of studying social and personal characteristics of adolescents included in youth subcultures. The data obtained indicate personality traits and social status that determine the enthusiasm for certain subcultures. In particular, adolescents interested in youth subcultures demonstrated the following problems: dissatisfaction with social status, communication problems, adequacy/inadequacy of self-esteem, search for thrills, influence of friends, and insufficient knowledge about the content and features of the influence of youth subculture. Conclusions. Based on the theoretical analysis of scholarly literature on the problem of the research, it was found that the adolescent’s inclusion in an informal association is determined by social and personal characteristics. Adolescents who are interested in youth subcultures demonstrated the following common characteristics: the need for a higher status in the students’ group, peer approval, unstable self-esteem, etc. Understanding the characteristics of adolescents contributes to fostering an adequate personality formation and determines the content of the prevention measures aimed at eliminating negative influences of informal associations.

Assessment and Rehabilitation Strategies for Sports-Related Musculoskeletal Injuries

This study provides a comprehensive analysis of assessment methods and rehabilitation techniques for sports activities-related musculoskeletal accidents. Understanding the complexity and variety of injuries incurred in sports, this paper synthesizes the modern-day evidence-based practices and protocols used to assess such injuries. Assessment processes embody a multidimensional exam, consisting of physical examination techniques, imaging modalities, and practical checks, aiming to diagnose the extent and nature of the harm precisely. Furthermore, the evaluation examines into rehabilitation strategies tailor-made to precise accidents, emphasizing the importance of a holistic approach that integrates therapeutic physical activities, manual therapy, neuromuscular re-schooling, and modern loading protocols. A minimum of 200 participants, comprising athletes with various types of musculoskeletal injuries, will be recruited to ensure diversity and generalizability of findings. Participants will be randomly assigned to intervention and control groups using computer-generated random numbers to ensure an unbiased allocation process. Stratification based on injury type and severity will be employed as a criteria, ensuring a balanced distribution of participants across different categories. Participants will undergo rehabilitation sessions three times per week for a duration of eight weeks, ensuring a structured and progressive approach to musculoskeletal injury recovery. Special attention is given to individualized rehabilitation plans that consider the athlete's sport-specific needs, biomechanics, and psychological aspects, facilitating the most beneficial restoration and secure return to play. The paper concludes by highlighting the ongoing advancements in generation and treatment modalities that similarly enhance the evaluation accuracy and efficacy of rehabilitation interventions for sports-related musculoskeletal injuries, emphasizing the importance of a comprehensive and customized method in the management of such injuries.

Examination of environmental assessment methods for the restoration of wetland plant communities in abandoned farmlands

Examination of environmental assessment methods for the restoration of wetland plant communities in abandoned farmlands

A bibliometric analysis of water footprint in China and abroad: research hotspots and frontiers

ABSTRACT The water footprint (WF) serves as a vital tool for quantifying human water resource consumption and is extensively utilized for water allocation analysis and management. This study employs CiteSpace to visualize literature from the Web of Science and the China National Knowledge Infrastructure from 2000 to 2023. Initially, quantitative analysis was used to find out the characteristics of the WF. Subsequently, keyword analysis was used to elucidate the similarities, differences, and temporal and spatial changes in domestic and foreign research hotspots. Moreover, the co-cited literature networks help to explore the research frontiers in the WF field systematically. China and foreign countries generally share common research themes, each maintaining distinct research characteristics. Specifically, the research results show that: (1) Chinese researchers keep up with the pace of international research, and the research results in the field of WF are updated quickly; (2) environmental impact, water–food–energy nexus, and gray WF have attracted attention globally. The international research focus is on the renewal of WF methodology. In contrast, Chinese researchers are more inclined to use methods on water-saving strategies and driving factors. (3) The research frontier mainly focuses on the updating of WF assessment methods and sustainable water use.

Oil-based Drilling Cutting Pyrolysis Residues- Recycled Fine Powder Sintered Ceramsite: Basic properties, Microsintering mechanism, Lightweight concrete application and Heavy metals solidification

Oil-based Drilling Cutting Pyrolysis Residue (ODPR) is a waste produced during oilfield drilling using oil-based mud. Recycled Fine Powder (RFP) consists of particles less than 0.16mm, crushed and sieved from waste concrete. China's solid waste is characterized by high production, low utilization rates, and high pollution levels. This study explores the feasibility of preparing ceramsite from ODPR and RFP. By examining the effects of varying temperatures and proportions on the macroscopic and microscopic properties of ODPR-RFP ceramsite (ORC), the optimal process was determined: ODPR: RFP = 7:3, 2% borax flux, 10minutes ball milling, 1200℃ sintering temperature, and 30minutes insulation. The resulting ORC, with a bulk density of 1120kg/m³, cylinder compression strength of 10.50MPa, and water absorption rate of 7.8%, meets the "Lightweight aggregates and its test methods (GT/B17431.2)" standard. Batch production of ORC products of various sizes was conducted to evaluate their practical application in LC30 lightweight aggregate concrete. Replacing the aggregate in lightweight concrete with ORC yielded a concrete with excellent mixing performance, reaching a maximum strength of 31.2MPa after 7d and 44.8MPa after 28d. The damage pattern of ORC lightweight concrete is characterized by longitudinal splitting, with varied crack initiation and expansion paths. In the interfacial transition zone of ORC concrete, the ORC form a strong bond with the cement mortar, enhancing the strength of the lightweight concrete. Additionally, the leaching of heavy metals (HMs) from the ORC was examined to assess potential environmental pollution. The results indicated that preparing ORC from these two types of solid waste can effectively immobilize HMs, with a solidification rate of up to 92.10%. Pb with high content is mainly solidified in the form of solid solution to form (Ba, Pb) SO4. The ecological risk assessment method for HMs shows that using this solid waste and process to prepare ORC does not pose HMs risks and is an environmentally friendly building material.

Impact of ChatGPT on Academic Integrity and Assessment Effectiveness for E-learning in Higher Education: The Need for Redesigning Assessment Practices

In recent years, there has been a growing trend of integrating Artificial Intelligence (AI) into e-learning in higher education. ChatGPT has emerged as one of the most widely utilised AI tools in students' studies. However, the emergence of ChatGPT has contributed to the development of education while simultaneously impacting the integrity of education and the effectiveness of traditional assessment methods. Whether the teacher's teaching goals are achieved or not, whether the students' learning is authentic and effective, and how to ensure the effectiveness of the assessment pose significant challenges to the educator or education sector in the context of artificial intelligence. Therefore, this paper aims to clarify the negative impact of ChatGPT on educational integrity and assessment effectiveness through a systematic literature review. Through the meticulous synthesis and analysis of diverse existing research, this paper finds that several scholars have already clarified the pressing need for redesigning the assessment method within the context of e-learning. However, further research has found that there are several theoretical countermeasures and suggestions for the redesign of assessment methods, but a systematic system of assessment methods has not yet been formed. And there is no reflective analysis of the practice of the redesigned assessment methods. Therefore, this paper will, through a systematic literature review and reflective summarisation of educational assessment practices, aim to investigate effective and responsible assessment methods to mitigate the impact of the rapid development and inappropriate use of ChatGPT on education.

Artificial intelligence-powered tools and academic writing: to use or not to use ChatGPT

PurposeThis study investigates the potential effectiveness of ChatGPT in enhancing the academic writing skills of Saudi EFL undergraduate students. It also examines the challenges associated with its use and suggests effective ways to address them in the education sector.Design/methodology/approachThe study employed a sequential mixed-methods approach, which involved distributing questionnaires to gather data from students, followed by conducting semi-structured interviews with a purposeful selection of eight students and six teachers.FindingsThe findings revealed that students were generally satisfied with the effectiveness of ChatGPT in enhancing their academic writing skills. However, they also pinpointed some challenges associated with using ChatGPT, including plagiarism, overreliance, inadequate documentation, threats to academic integrity, and inaccurate information. To alleviate these challenges, effective strategies include deploying detection tools, equipping students and educators with training sessions, and revisiting academic policies and assessment methods. It is recommended that ChatGPT be used responsibly as an assistant tool, in conjunction with students' ideas and teachers' feedback. This approach can significantly enhance students' writing skills and facilitate completing their research projects and assignments.Practical implicationsChatGPT can be a valuable tool in the educational landscape, but it is essential to use it judiciously. Therefore, teachers' effective integration of ChatGPT into their classrooms can significantly enhance students' writing abilities and streamline their research process.Originality/valueThis study contributes to recent AI-based research and provides practical insights on the responsible integration of ChatGPT into education while addressing potential challenges.

Sleep and circadian disruption in bipolar disorders: From psychopathology to digital phenotyping in clinical practice.

Sleep and biological rhythms are integral to mood regulation across the lifespan, particularly in bipolar disorder (BD), where alterations in sleep phase, structure, and duration occur in all mood states. These disruptions are linked to poorer quality of life, heightened suicide risk, impaired cognitive function, and increased relapse rates. This review highlights the pathophysiology of sleep disturbances in BD and aims to consolidate understanding and clinical applications of these phenomena. It also summarizes the evolution of sleep and biological rhythms assessment methods, including ecological momentary assessment (EMA) and digital phenotyping. It underscores the importance of recognizing circadian rhythm involvement in mood regulation, suggesting potential therapeutic targets. Future research directions include elucidating circadian clock gene mechanisms, understanding environmental impacts on circadian rhythms, and investigating the bidirectional relationship between sleep disturbances and mood regulation in BD. Standardizing assessment methods and addressing privacy concerns related to EMA technology and digital phenotyping are essential for advancing research. Collaborative efforts are crucial for enhancing clinical applicability and understanding the broader implications of biological rhythms in BD diagnosis and treatment. Overall, recognizing the significance of sleep and biological rhythms in BD offers promise for improved outcomes through targeted interventions and a deeper understanding of the disorder's underlying mechanisms.

Identification of A0 minimum ablative margins for colorectal liver metastases: multicentre, retrospective study using deformable CT registration and artificial intelligence-based autosegmentation.

Several ablation confirmation software methods for minimum ablative margin assessment have recently been developed to improve local outcomes for patients undergoing thermal ablation of colorectal liver metastases. Previous assessments were limited to single institutions mostly at the place of development. The aim of this study was to validate the previously identified 5 mm minimum ablative margin (A0) using autosegmentation and biomechanical deformable image registration in a multi-institutional setting. This was a multicentre, retrospective study including patients with colorectal liver metastases undergoing CT- or ultrasound-guided microwave or radiofrequency ablation during 2009-2022, reporting 3-year local disease progression (residual unablated tumour or local tumour progression) rates by minimum ablative margin across all institutions and identifying an intraprocedural contrast-enhanced CT-based minimum ablative margin associated with a 3-year local disease progression rate of less than 1%. A total of 400 ablated colorectal liver metastases (median diameter of 1.5 cm) in 243 patients (145 men; median age of 62 [interquartile range 54-70] years) were evaluated, with a median follow-up of 26 (interquartile range 17-40) months. A total of 119 (48.9%) patients with 186 (46.5%) colorectal liver metastases were from international institutions B, C, and D that were not involved in the software development. Three-year local disease progression rates for 0 mm, >0 and <5 mm, and 5 mm or larger minimum ablative margins were 79%, 15%, and 0% respectively for institution A (where the software was developed) and 34%, 19%, and 2% respectively for institutions B, C, and D combined. Local disease progression risk decreased to less than 1% with an intraprocedurally confirmed minimum ablative margin greater than 4.6 mm. A minimum ablative margin of 5 mm or larger demonstrates optimal local oncological outcomes. It is proposed that an intraprocedural minimum ablative margin of 5 mm or larger, confirmed using biomechanical deformable image registration, serves as the A0 for colorectal liver metastasis thermal ablation.

Gaidai risks evaluation method for lifetime assessment for offshore floating wind turbine gearbox

Gaidai risks evaluation method for lifetime assessment for offshore floating wind turbine gearbox