Science Progress最新文献_第9页

Integrated diagnosis optimization design of the electronic equipment based on spatial mapping. 基于空间映射的电子设备综合诊断优化设计。

IF 2.6 4区综合性期刊

Science Progress Pub Date : 2024-10-01 DOI: 10.1177/00368504241285770

Xu-Ping Gu, Xian-Jun Shi

{"title":"Integrated diagnosis optimization design of the electronic equipment based on spatial mapping.","authors":"Xu-Ping Gu, Xian-Jun Shi","doi":"10.1177/00368504241285770","DOIUrl":"10.1177/00368504241285770","url":null,"abstract":"The complexity of test and fault information within electronic devices makes their integrated diagnosis a challenging problem when designing equipment reliability. Current integrated diagnosis is analyzed for test optimization and test resource optimization. However, this neglects the connection between them. This paper proposes a design strategy for integrated diagnosis optimization based on the spatial mapping principle to quantitatively describe the constraint relationship between them. The integrated diagnosis optimization model is established by constructing the logical mapping relationship between test space, resource space, and fault space, and the optimal test configuration and test resource configuration are sought based on the grey wolf optimization algorithm. Seven high-dimensional benchmark functions and an integrated diagnosis model of electronic equipment are used to verify the efficiency of the algorithm proposed in this paper. The proposed algorithm is compared with the other four in terms of the algorithm's optimization speed and accuracy. The results indicate that the electronic equipment after integrated diagnosis optimization has critical fault detection, fault detection, fault isolation, and false alarm rates of 100%, 99.99%, 98.99%, and 0.2993%, respectively. After the integrated diagnosis optimization, the number of tests of the equipment is reduced by 88.9%, and the test cost is saved by 89%. Compared with the other algorithms, grey wolf optimization achieves the best optimization results, reduces the number of tests by 42%-55%, and decreases the test cost by 77.63%-83.91%. This strategy not only considers the test optimization of equipment and test resources optimization but also dramatically reduces the test cost while improving the test efficiency.","PeriodicalId":56061,"journal":{"name":"Science Progress","volume":"107 4","pages":"368504241285770"},"PeriodicalIF":2.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11539195/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142585242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Large-scale research infrastructure projects: A conceptual review for science policy and management.

IF 2.6 4区综合性期刊

Science Progress Pub Date : 2024-10-01 DOI: 10.1177/00368504241266555

David C Eggleton

引用次数: 0

Subcutaneous adipose tissue/neutrophil-to-lymphocyte ratio is a potential biomarker in patients with hepatocellular carcinoma undergoing liver resection. 皮下脂肪组织/中性粒细胞与淋巴细胞比值是接受肝切除术的肝细胞癌患者的潜在生物标志物。

IF 2.6 4区综合性期刊

Science Progress Pub Date : 2024-10-01 DOI: 10.1177/00368504241304195

Shu-Xian Li, Yan Bao, Tian-Cheng Wang

{"title":"Subcutaneous adipose tissue/neutrophil-to-lymphocyte ratio is a potential biomarker in patients with hepatocellular carcinoma undergoing liver resection.","authors":"Shu-Xian Li, Yan Bao, Tian-Cheng Wang","doi":"10.1177/00368504241304195","DOIUrl":"10.1177/00368504241304195","url":null,"abstract":"Objective: Both subcutaneous adipose tissue (SAT) and neutrophil-to-lymphocyte ratio (NLR) are associated with the prognosis of hepatocellular carcinoma (HCC). Subcutaneous adipose tissue is an immunonutritional indicator, and NLR reflects the inflammatory status. The purpose of this study was to ascertain the validity of SAT/NLR as potential prognostic biomarkers in HCC patients who are undergoing liver resection.Methods: This retrospective study encompassed the sequential enrollment of 682 patients diagnosed with HCC who underwent liver resection. The patients were categorized into high and low SAT/NLR groups using the median value, and forward stepwise logistic regression was utilized to ascertain independent predictors for one-year HCC recurrence. In order to minimize the influence of confounding variables, a propensity score matching (PSM) analysis was conducted between patients in high and low SAT/NLR groups. The Kaplan-Meier method was employed to assess and compare the recurrence-free survival (RFS) and overall survival (OS) between the two groups.Results: The study divided patients into two groups based on their SAT/NLR levels: high SAT/NLR (≥35.34) and low SAT/NLR (<35.34) groups. Forward stepwise logistic regression analysis revealed that low SAT/NLR (p < 0.001), tumor size ≥50 mm (p < 0.001), alpha-fetoprotein level >200 ng/mL (p < 0.001), and presence of liver cirrhosis (p < 0.001) were significantly associated with one-year recurrence of HCC. Moreover, the results suggest that RFS and OS were significantly shorter in the low SAT/NLR group compared to the high SAT/NLR group, both before and after PSM (p < 0.05).Conclusions: The preoperative biomarker SAT/NLR shows potential as a prognostic biomarker for one-year recurrence and prognosis in patients with HCC undergoing liver resection.","PeriodicalId":56061,"journal":{"name":"Science Progress","volume":"107 4","pages":"368504241304195"},"PeriodicalIF":2.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11639030/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142819778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of the effect of combination therapies in the treatment of large varicose ulcers: A real-world cohort study 比较联合疗法治疗大面积静脉曲张溃疡的效果：真实世界队列研究

IF 2.1 4区综合性期刊

Science Progress Pub Date : 2024-09-18 DOI: 10.1177/00368504241283352

Fangfang Wen, Hailiang Xie, Minggui Lai, Guofu Zheng, Yuancai Xie, Xiaochun Liu

{"title":"Comparison of the effect of combination therapies in the treatment of large varicose ulcers: A real-world cohort study","authors":"Fangfang Wen, Hailiang Xie, Minggui Lai, Guofu Zheng, Yuancai Xie, Xiaochun Liu","doi":"10.1177/00368504241283352","DOIUrl":"https://doi.org/10.1177/00368504241283352","url":null,"abstract":"Objectives:The primary treatment for varicose ulcers is to address the underlying cause of venous hypertension, additionally, split-thickness skin transplantation (ST) is an effective option for large ulcers. The aim of this study was to compare the efficacy of venous surgery with or without split-thickness ST in the management of varicose ulcers (diameter ≥6 cm).Methods:Patients with varicose ulcers between 2013 and 2023 were included in the real-world retrospective cohort study. The endovenous microwave ablation/endovenous laser ablation-high ligation-foam sclerotherapy-compression therapy + ST group (EMA/EVLA-CT-HL-FS + ST) consisted of 32 patients, while the EMA/EVLA-CT-HL-FS group consisted of 48 patients.Results:A difference in ulcer healing time was found between the two groups (the hazard ratio [HR] was 4.4, 95% CI [2.3–8.2], P < 0.0001). However, the healing rate did not differ between the two groups at 6 and 12 months postoperatively.Conclusion:ST has been shown to expedite ulcer healing and ameliorate the symptoms of VVs in the early stages of treatment, while its intermediate to long-term efficacy for ulcer healing and overall patient quality of life may be limited.","PeriodicalId":56061,"journal":{"name":"Science Progress","volume":"18 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142262727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A review of research on tire burst and vehicle stability control 轮胎爆裂和车辆稳定性控制研究综述

IF 2.1 4区综合性期刊

Science Progress Pub Date : 2024-09-17 DOI: 10.1177/00368504241272478

Dongsheng Yang, Jun Li, Chaosheng Huang, Kunheng Li, Guoxiang Lu, Kai Guo

{"title":"A review of research on tire burst and vehicle stability control","authors":"Dongsheng Yang, Jun Li, Chaosheng Huang, Kunheng Li, Guoxiang Lu, Kai Guo","doi":"10.1177/00368504241272478","DOIUrl":"https://doi.org/10.1177/00368504241272478","url":null,"abstract":"Tire burst is an accidental occurrence that poses a serious threat to the driving stability and road safety of vehicles. Therefore, it is of great practical significance to investigate early warning systems for tire burst and develop stability and safety control measures after burst incidents. The development of an accurate model that can effectively represent the impact of tire burst on vehicle dynamics is crucial for the design of control systems and the development of stability control strategies. Most of the existing research on tire burst models is based on static tire tests, the effectiveness of these models still needs to be further verified. The main approach to studying the impact of burst tires on vehicle performance is to embed a burst tire model into a vehicle dynamics model. Understanding the impact of tire burst on vehicle performance is essential for identifying burst incidents and developing stability control strategies. The research on burst identification primarily focuses on early warning systems and estimating vehicle state parameters after burst incidents, while the current research on stability control strategies focuses on enabling vehicles to continue running safely after burst incidents through braking, active steering, and collaborative control. Currently, there is no comprehensive review of research on vehicle tire burst stability control. Therefore, this paper primarily reviews five aspects: (a) the causes and prevention of tire burst, (b) the impact of tire burst on vehicle performance, (c) burst identification, (d) stability control strategies for burst incidents, and (e) future prospects for tire burst research.","PeriodicalId":56061,"journal":{"name":"Science Progress","volume":"90 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142262763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hydraulic loss experiment of straight-through Tesla valve in forward and reverse directions 特斯拉直通阀正反向液压损失实验

IF 2.1 4区综合性期刊

Science Progress Pub Date : 2024-09-17 DOI: 10.1177/00368504241269433

Yan-Juan Zhao, Jiang-Bo Tong, Yu-Liang Zhang, Xiao-Wei Xu, Liang-Huai Tong

引用次数: 0

A review of neonatal lupus syndrome 新生儿狼疮综合征综述

IF 2.1 4区综合性期刊

Science Progress Pub Date : 2024-09-17 DOI: 10.1177/00368504241278476

Adegbenga Bankole, Jane Nwaonu

引用次数: 0

Digital finance and sustainable development: Evidence from developing nations 数字金融与可持续发展：来自发展中国家的证据

IF 2.1 4区综合性期刊

Science Progress Pub Date : 2024-09-14 DOI: 10.1177/00368504241278823

Walid Bakry, Xuan-Hoa Nghiem, Muhammad Ishaq Bhatti, Somar Al-Mohamad, Lianbiao Cui

{"title":"Digital finance and sustainable development: Evidence from developing nations","authors":"Walid Bakry, Xuan-Hoa Nghiem, Muhammad Ishaq Bhatti, Somar Al-Mohamad, Lianbiao Cui","doi":"10.1177/00368504241278823","DOIUrl":"https://doi.org/10.1177/00368504241278823","url":null,"abstract":"ObjectivesThis paper investigates the role of digital finance in promoting environmental sustainability within a group of 52 developing economies from 2010 to 2019. Specifically, it examines whether digital finance effectively contributes reducing CO2 emissions in these nations.MethodsThis paper is a quantitative study which employs the IV-GMM (instrumental variable generalized methods of moment) approach that tackles any potential endogeneity. Furthermore, to ensure robustness of results, this paper also utilizes different measures of financial development.ResultsEstimation results from this study reveal the presence of inverted U-shaped relationship between digital finance and CO2 emissions. This suggests that the beneficial effects of digital finance may take time to materialize. Additionally, this research also records the presence of the Environmental Kuznets Curve and a significant impact of renewable energy, trade openness, financial development, urbanization, and population on CO2 emissions.ConclusionsIt can be concluded that it may take time for digital finance to become beneficial to the environment. Therefore, in addition to digital finance, countries should also adopt other measures simultaneously (use of renewable energy, combination between digital finance and financial development).","PeriodicalId":56061,"journal":{"name":"Science Progress","volume":"19 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142262761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Early and late blight disease identification in tomato plants using a neural network-based model to augmenting agricultural productivity 利用基于神经网络的模型识别番茄植株的早疫病和晚疫病，提高农业生产力

IF 2.1 4区综合性期刊

Science Progress Pub Date : 2024-09-14 DOI: 10.1177/00368504241275371

Muzammil Khan, Fahmida Gulan, Muhammad Arshad, Abnash Zaman, Ammara Riaz

{"title":"Early and late blight disease identification in tomato plants using a neural network-based model to augmenting agricultural productivity","authors":"Muzammil Khan, Fahmida Gulan, Muhammad Arshad, Abnash Zaman, Ammara Riaz","doi":"10.1177/00368504241275371","DOIUrl":"https://doi.org/10.1177/00368504241275371","url":null,"abstract":"Computer-advanced technologies have a significant impact across various fields. It is widely recognized that diseases have a detrimental effect on crop productivity and can significantly impact the economy, particularly in agricultural countries. Tomatoes hold great economic importance among cash crops, second only to potatoes. Globally, tomato production reaches a staggering 160 million tons annually, making it even more crucial for agricultural development. Unfortunately, the tomato crop is susceptible to several diseases, with early blight and late blight as two prominent culprits responsible for a production decrease of around 79%. Traditional disease detection and identification methods are time-consuming, expensive, and destructive, often requiring pathologists’ expertise. Thus, the primary research objective is to enhance disease identification accuracy by leveraging deep learning techniques. A model based on the inception-V3 architecture has been devised to classify diseases affecting tomato plant leaves. The model was trained and tested using the PlantVillage dataset, which comprises 6000 sample images of tomato leaves. The training and testing process utilized an 80 : 20 ratio, resulting in an impressive classification accuracy of 97.44% for the proposed model. The proposed solution aims to enable the tomato industry to thrive in the global market by mitigating the impact of tomato leaf diseases. By reducing the prevalence of these diseases, the solution can increase demand and contribute to the industry’s growth.","PeriodicalId":56061,"journal":{"name":"Science Progress","volume":"33 1 1","pages":"368504241275371"},"PeriodicalIF":2.1,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142262724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of battery charging and discharging strategies in substation DC systems using the dual self-attention network-N-BEATS model 利用双自注意网络-N-BEATS 模型优化变电站直流系统中的电池充放电策略

IF 2.1 4区综合性期刊

Science Progress Pub Date : 2024-09-14 DOI: 10.1177/00368504241274999

Yuehai Tu, Feng Tu, Yun Yang, Jiaqi Qian, Xi Wu, Sian Yang

{"title":"Optimization of battery charging and discharging strategies in substation DC systems using the dual self-attention network-N-BEATS model","authors":"Yuehai Tu, Feng Tu, Yun Yang, Jiaqi Qian, Xi Wu, Sian Yang","doi":"10.1177/00368504241274999","DOIUrl":"https://doi.org/10.1177/00368504241274999","url":null,"abstract":"With the rapid pace of urbanization and industrialization, the demand for electricity has surged, placing immense pressure on power management systems. Substation DC systems play a crucial role in managing these fluctuations to ensure a stable and reliable power supply. However, existing battery charging and discharging strategies often suffer from inefficiencies, which can negatively impact overall system performance and sustainability. In this study, we introduce a novel approach that leverages artificial intelligence and time series predictive analytics through the dual self-attention network-neural basis expansion analysis for time series (DSAN-N-BEATS) model. This model integrates the self-attention network with the neural basis expansion analysis for time series (N-BEATS) model to accurately capture time-series data and optimize battery management. Our experimental results demonstrate that the DSAN-N-BEATS model significantly enhances battery state prediction accuracy, achieving a 95.84% accuracy rate, and improves charging and discharging efficiency by 20% compared to traditional methods. These improvements contribute to the overall reliability and sustainability of power systems. This research provides innovative methods for optimizing battery strategies, supporting sustainable development in the power industry, and enhancing system stability and reliability.","PeriodicalId":56061,"journal":{"name":"Science Progress","volume":"2 1","pages":"368504241274999"},"PeriodicalIF":2.1,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142262725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0