首页 > 最新文献

Science Progress最新文献

英文 中文
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 Q2 MULTIDISCIPLINARY SCIENCES Pub Date : 2024-09-18 DOI: 10.1177/00368504241283352
Fangfang Wen, Hailiang Xie, Minggui Lai, Guofu Zheng, Yuancai Xie, Xiaochun Liu
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.
目的:静脉曲张溃疡的主要治疗方法是解决静脉高压的根本原因,此外,分层厚皮移植术(ST)也是治疗大面积溃疡的有效方法。本研究旨在比较静脉手术联合或不联合分层厚皮移植治疗静脉曲张溃疡(直径≥6厘米)的疗效。结果:两组患者的溃疡愈合时间存在差异(危险比 [HR] 为 4.4,95% CI [2.3-8.2],P <0.0001)。结论:ST 在治疗早期可加快溃疡愈合并改善 VVs 症状,但其对溃疡愈合和患者整体生活质量的中长期疗效可能有限。
{"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 &lt; 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":null,"pages":null},"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 Q2 MULTIDISCIPLINARY SCIENCES Pub Date : 2024-09-17 DOI: 10.1177/00368504241272478
Dongsheng Yang, Jun Li, Chaosheng Huang, Kunheng Li, Guoxiang Lu, Kai Guo
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.
轮胎爆裂是一种意外事故,对车辆的行驶稳定性和道路安全构成严重威胁。因此,研究爆胎的早期预警系统以及开发爆胎后的稳定性和安全性控制措施具有重要的现实意义。建立一个能有效表示爆胎对车辆动力学影响的精确模型,对于控制系统的设计和稳定性控制策略的开发至关重要。现有的爆胎模型研究大多基于轮胎静态测试,这些模型的有效性仍有待进一步验证。研究爆胎对车辆性能影响的主要方法是将爆胎模型嵌入到车辆动力学模型中。了解爆胎对车辆性能的影响对于识别爆胎事故和制定稳定性控制策略至关重要。爆胎识别方面的研究主要集中在爆胎事故后的预警系统和车辆状态参数估算,而目前的稳定性控制策略研究主要集中在通过制动、主动转向和协同控制,使车辆在爆胎事故后继续安全行驶。目前,还没有关于车辆爆胎稳定性控制研究的全面综述。因此,本文主要从五个方面进行综述:(a)爆胎的原因和预防;(b)爆胎对车辆性能的影响;(c)爆胎识别;(d)爆胎事故的稳定性控制策略;(e)爆胎研究的未来展望。
{"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":null,"pages":null},"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 Q2 MULTIDISCIPLINARY SCIENCES Pub Date : 2024-09-17 DOI: 10.1177/00368504241269433
Yan-Juan Zhao, Jiang-Bo Tong, Yu-Liang Zhang, Xiao-Wei Xu, Liang-Huai Tong
Tesla valves are widely used in the field of fluid control. To study the hydraulic performance of straight-through Tesla valves in forward and reverse flow, 16 straight-through Tesla valves with diverse blade parameters were designed in this paper, and hydraulic loss tests were carried out in forward and reverse flow under different working conditions. The results show that the hydraulic loss increases with the increasing working flow rate in forward and reverse flow; at the identical flow rate, the reverse loss is higher than the forward loss. Both the hydraulic loss through the valve and the unidirectional conductivity of the valve increase with increasing blade length, pitch, and number of blades, but too long of a length results in weakened unidirectional conductivity. The hydraulic loss increases with the increase of blade angle, and the unidirectional conductivity decreases with the increase of blade angle. When the blades are arranged in perfect symmetry, the hydraulic loss through the valve is maximum, and the valve has the best unidirectional conductivity.
特斯拉阀广泛应用于流体控制领域。为了研究直通式特斯拉阀在正向和反向流动时的水力性能,本文设计了 16 个叶片参数不同的直通式特斯拉阀,并在不同工况下进行了正向和反向流动的水力损失试验。结果表明,在正向和反向流动中,液压损失随着工作流速的增加而增加;在相同流速下,反向损失大于正向损失。通过阀门的水力损失和阀门的单向传导性都随着叶片长度、间距和叶片数量的增加而增加,但过长的叶片长度会导致单向传导性减弱。水力损失随叶片角度的增大而增大,单向导电率随叶片角度的增大而减小。当叶片完全对称排列时,通过阀门的水力损失最大,阀门的单向导电性最好。
{"title":"Hydraulic loss experiment of straight-through Tesla valve in forward and reverse directions","authors":"Yan-Juan Zhao, Jiang-Bo Tong, Yu-Liang Zhang, Xiao-Wei Xu, Liang-Huai Tong","doi":"10.1177/00368504241269433","DOIUrl":"https://doi.org/10.1177/00368504241269433","url":null,"abstract":"Tesla valves are widely used in the field of fluid control. To study the hydraulic performance of straight-through Tesla valves in forward and reverse flow, 16 straight-through Tesla valves with diverse blade parameters were designed in this paper, and hydraulic loss tests were carried out in forward and reverse flow under different working conditions. The results show that the hydraulic loss increases with the increasing working flow rate in forward and reverse flow; at the identical flow rate, the reverse loss is higher than the forward loss. Both the hydraulic loss through the valve and the unidirectional conductivity of the valve increase with increasing blade length, pitch, and number of blades, but too long of a length results in weakened unidirectional conductivity. The hydraulic loss increases with the increase of blade angle, and the unidirectional conductivity decreases with the increase of blade angle. When the blades are arranged in perfect symmetry, the hydraulic loss through the valve is maximum, and the valve has the best unidirectional conductivity.","PeriodicalId":56061,"journal":{"name":"Science Progress","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142262728","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 neonatal lupus syndrome 新生儿狼疮综合征综述
IF 2.1 4区 综合性期刊 Q2 MULTIDISCIPLINARY SCIENCES Pub Date : 2024-09-17 DOI: 10.1177/00368504241278476
Adegbenga Bankole, Jane Nwaonu
This review article discusses neonatal lupus syndrome (NLS), an immune-mediated disease caused by maternal antibodies. Maternal antibodies in the fetal circulation are mostly but not always protective. NLS is a disease caused by pathogenic maternal autoantibodies in the fetal circulation. The passive immunization of the fetus by NLS-causing maternal antibodies may occur in the absence of a previously known maternal systemic autoimmune rheumatic disease (SARD). Screening for NLS-related antibodies in patients with related SARD or those in whom there is a risk of NLS including first-degree relatives should occur before pregnancy. This screening is best performed as part of a collaborative relationship between obstetrics and rheumatology. Pregnancy preparations in those with SARD include transitioning to pregnancy-safe medications. The symptoms of NLS range from minor skin rashes to fetal demise from heart block. Fetal screening allows for maternal therapeutic interventions that may be beneficial, as well as the use of fetal pacemakers in the more severe cases that include cardiac NLS.
这篇综述文章讨论了新生儿狼疮综合征(NLS),这是一种由母体抗体引起的免疫介导疾病。胎儿血液循环中的母体抗体大多具有保护作用,但并非总是如此。NLS 是一种由胎儿血液循环中的致病性母体自身抗体引起的疾病。在没有已知的母体系统性自身免疫性风湿病(SARD)的情况下,胎儿可能会被NLS致病母体抗体被动免疫。对患有相关 SARD 的患者或有 NLS 风险的患者(包括一级亲属),应在妊娠前进行 NLS 相关抗体筛查。这种筛查最好在产科和风湿科合作的情况下进行。SARD 患者的妊娠准备包括过渡到妊娠安全药物。NLS 的症状从轻微的皮疹到胎儿因心脏传导阻滞而死亡不等。通过胎儿筛查可以对母体进行有益的治疗干预,对于包括心脏性 NLS 在内的较严重病例,还可以使用胎儿心脏起搏器。
{"title":"A review of neonatal lupus syndrome","authors":"Adegbenga Bankole, Jane Nwaonu","doi":"10.1177/00368504241278476","DOIUrl":"https://doi.org/10.1177/00368504241278476","url":null,"abstract":"This review article discusses neonatal lupus syndrome (NLS), an immune-mediated disease caused by maternal antibodies. Maternal antibodies in the fetal circulation are mostly but not always protective. NLS is a disease caused by pathogenic maternal autoantibodies in the fetal circulation. The passive immunization of the fetus by NLS-causing maternal antibodies may occur in the absence of a previously known maternal systemic autoimmune rheumatic disease (SARD). Screening for NLS-related antibodies in patients with related SARD or those in whom there is a risk of NLS including first-degree relatives should occur before pregnancy. This screening is best performed as part of a collaborative relationship between obstetrics and rheumatology. Pregnancy preparations in those with SARD include transitioning to pregnancy-safe medications. The symptoms of NLS range from minor skin rashes to fetal demise from heart block. Fetal screening allows for maternal therapeutic interventions that may be beneficial, as well as the use of fetal pacemakers in the more severe cases that include cardiac NLS.","PeriodicalId":56061,"journal":{"name":"Science Progress","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142262729","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
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 Q2 MULTIDISCIPLINARY SCIENCES Pub Date : 2024-09-14 DOI: 10.1177/00368504241278823
Walid Bakry, Xuan-Hoa Nghiem, Muhammad Ishaq Bhatti, Somar Al-Mohamad, Lianbiao Cui
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).
本文研究了 2010 年至 2019 年数字金融在 52 个发展中经济体中促进环境可持续性的作用。方法本文是一项定量研究,采用了 IV-GMM(工具变量广义矩方法)方法来解决任何潜在的内生性问题。此外,为确保结果的稳健性,本文还采用了不同的金融发展衡量指标。结果本研究的估计结果显示,数字金融与二氧化碳排放之间存在倒 U 型关系。这表明,数字金融的有利影响可能需要一段时间才能实现。此外,本研究还记录了环境库兹涅茨曲线的存在,以及可再生能源、贸易开放度、金融发展、城市化和人口对二氧化碳排放的显著影响。因此,除数字金融外,各国还应同时采取其他措施(使用可再生能源、数字金融与金融发展相结合)。
{"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 CO<jats:sub>2</jats:sub> 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 CO<jats:sub>2</jats:sub> 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 CO<jats:sub>2</jats:sub> 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":null,"pages":null},"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 Q2 MULTIDISCIPLINARY SCIENCES Pub Date : 2024-09-14 DOI: 10.1177/00368504241275371
Muzammil Khan, Fahmida Gulan, Muhammad Arshad, Abnash Zaman, Ammara Riaz
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.
计算机先进技术对各个领域都有重大影响。人们普遍认识到,病害会对作物产量产生不利影响,并对经济产生重大影响,尤其是在农业国家。在经济作物中,番茄的经济重要性仅次于马铃薯。在全球范围内,番茄的年产量达到了惊人的 1.6 亿吨,这使得番茄对农业发展更加重要。遗憾的是,番茄作物容易受到多种病害的侵袭,其中早疫病和晚疫病是导致番茄减产约 79% 的两大罪魁祸首。传统的病害检测和识别方法耗时长、成本高、破坏性大,通常需要病理学家的专业知识。因此,研究的主要目标是利用深度学习技术提高病害识别的准确性。我们设计了一个基于 inception-V3 架构的模型,用于对影响番茄植株叶片的病害进行分类。该模型使用 PlantVillage 数据集进行了训练和测试,该数据集由 6000 张番茄叶片样本图像组成。训练和测试过程的比例为 80:20,结果是所提模型的分类准确率达到了令人印象深刻的 97.44%。所提出的解决方案旨在通过减轻番茄叶片病害的影响,使番茄产业在全球市场上蓬勃发展。通过减少这些病害的流行,该解决方案可以增加需求,促进行业发展。
{"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":null,"pages":null},"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 Q2 MULTIDISCIPLINARY SCIENCES Pub Date : 2024-09-14 DOI: 10.1177/00368504241274999
Yuehai Tu, Feng Tu, Yun Yang, Jiaqi Qian, Xi Wu, Sian Yang
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.
随着城市化和工业化进程的加快,电力需求激增,给电力管理系统带来了巨大压力。变电站直流系统在管理这些波动以确保稳定可靠的电力供应方面发挥着至关重要的作用。然而,现有的电池充放电策略往往效率低下,会对系统的整体性能和可持续性造成负面影响。在本研究中,我们通过时间序列双自注意网络-神经基扩展分析(DSAN-N-BEATS)模型,介绍了一种利用人工智能和时间序列预测分析的新方法。该模型集成了自我注意网络和时间序列神经基扩展分析(N-BEATS)模型,可准确捕捉时间序列数据并优化电池管理。实验结果表明,DSAN-N-BEATS 模型显著提高了电池状态预测的准确性,准确率达到 95.84%,与传统方法相比,充电和放电效率提高了 20%。这些改进有助于提高电力系统的整体可靠性和可持续性。这项研究为优化电池策略、支持电力行业的可持续发展以及提高系统稳定性和可靠性提供了创新方法。
{"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":null,"pages":null},"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
Developing an intuitionistic fuzzy rough new correlation coefficient approach for enhancing robotic vacuum cleaner 开发一种直觉模糊粗糙新相关系数方法,用于增强机器人真空吸尘器的功能
IF 2.1 4区 综合性期刊 Q2 MULTIDISCIPLINARY SCIENCES Pub Date : 2024-09-14 DOI: 10.1177/00368504241275417
Shaik Noorjahan, Shaik Sharief Basha
An intuitionistic fuzzy rough model is a powerful tool for dealing with complex uncertainty and imprecision in graph-based models, combining the strengths of intuitionistic fuzzy sets and rough sets. In this research, a correlation coefficient is an established tool for finding the strength of the relationship between two intuitionistic fuzzy rough graphs since correlation coefficients are very capable of processing and interpreting data. Furthermore, an intuitionistic fuzzy rough environment is integrated with attribute decision-making based on correlation coefficients. In order to measure the correlation between two intuitionistic fuzzy rough graphs, this suggests utilising the correlation coefficient concept and weighted correlation coefficient. In order to identify decision-making issues that are supported by intuitionistic fuzzy rough preference relations, the Laplacian energy and new correlation coefficient of intuitionistic fuzzy rough graphs are calculated in this study. We propose a new approach to computing the relative position loads of establishments by adjusting the correlation coefficient between one personality's intuitionistic fuzzy rough preference relation and the other items, as well as the undecided corroboration of the intuitionistic fuzzy rough preference relation. This paper determines the ranking order of all alternatives and the best one by using the correlation coefficient between each option and the ideal choice. In the meantime, the appropriate example improves decision-making for robotic vacuum cleaners by effectively handling uncertain and imprecise data, thereby optimising cleaning performance.
直观模糊粗糙模型结合了直观模糊集和粗糙集的优点,是处理基于图形的模型中复杂的不确定性和不精确性的有力工具。在本研究中,相关系数是查找两个直觉模糊粗糙图之间关系强度的既定工具,因为相关系数在处理和解释数据方面具有很强的能力。此外,直观模糊粗糙环境与基于相关系数的属性决策相结合。为了测量两个直觉模糊粗糙图之间的相关性,建议利用相关系数概念和加权相关系数。为了确定直觉模糊粗糙偏好关系所支持的决策问题,本研究计算了直觉模糊粗糙图的拉普拉卡能量和新的相关系数。我们提出了一种新方法,通过调整一种个性的直觉模糊粗糙偏好关系与其他项目之间的相关系数,以及直觉模糊粗糙偏好关系的未决确证度,来计算企业的相对位置负荷。本文通过各选项与理想选择之间的相关系数来确定所有备选方案的排序顺序和最佳选择。同时,适当的示例通过有效处理不确定和不精确的数据,改进了机器人真空吸尘器的决策,从而优化了清洁性能。
{"title":"Developing an intuitionistic fuzzy rough new correlation coefficient approach for enhancing robotic vacuum cleaner","authors":"Shaik Noorjahan, Shaik Sharief Basha","doi":"10.1177/00368504241275417","DOIUrl":"https://doi.org/10.1177/00368504241275417","url":null,"abstract":"An intuitionistic fuzzy rough model is a powerful tool for dealing with complex uncertainty and imprecision in graph-based models, combining the strengths of intuitionistic fuzzy sets and rough sets. In this research, a correlation coefficient is an established tool for finding the strength of the relationship between two intuitionistic fuzzy rough graphs since correlation coefficients are very capable of processing and interpreting data. Furthermore, an intuitionistic fuzzy rough environment is integrated with attribute decision-making based on correlation coefficients. In order to measure the correlation between two intuitionistic fuzzy rough graphs, this suggests utilising the correlation coefficient concept and weighted correlation coefficient. In order to identify decision-making issues that are supported by intuitionistic fuzzy rough preference relations, the Laplacian energy and new correlation coefficient of intuitionistic fuzzy rough graphs are calculated in this study. We propose a new approach to computing the relative position loads of establishments by adjusting the correlation coefficient between one personality's intuitionistic fuzzy rough preference relation and the other items, as well as the undecided corroboration of the intuitionistic fuzzy rough preference relation. This paper determines the ranking order of all alternatives and the best one by using the correlation coefficient between each option and the ideal choice. In the meantime, the appropriate example improves decision-making for robotic vacuum cleaners by effectively handling uncertain and imprecise data, thereby optimising cleaning performance.","PeriodicalId":56061,"journal":{"name":"Science Progress","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142262730","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
TVGCN: Time-varying graph convolutional networks for multivariate and multifeature spatiotemporal series prediction TVGCN:用于多变量和多特征时空序列预测的时变图卷积网络
IF 2.1 4区 综合性期刊 Q2 MULTIDISCIPLINARY SCIENCES Pub Date : 2024-09-14 DOI: 10.1177/00368504241283315
Feiyan Sun, Wenning Hao, Ao Zou, Kai Cheng
Spatiotemporal (ST) graph modeling has garnered increasing attention recently. Most existing methods rely on a predefined graph structure or construct a single learnable graph throughout training. However, it is challenging to use a predefined graph structure to capture dynamic ST changes effectively due to evolving node relationships over time. Furthermore, these methods typically utilize only the original data, neglecting external temporal factors. Therefore, we put forward a novel time-varying graph convolutional network model that integrates external factors for multifeature ST series prediction. Firstly, we construct a time-varying adjacency matrix using attention to capture dynamic spatial relationships among nodes. The graph structure adapts over time during training, validation, and testing phases. Then, we model temporal dependence by dilated causal convolution, leveraging gated activation unit and residual connection. Notably, the prediction accuracy is enhanced through the incorporation of embedding absolute time and the fusion of multifeature. This model has been applied to three real-world multifeature datasets, achieving state-of-the-art performance in all cases. Experiments show that the method has high accuracy and robustness when applied to multifeature and multivariate ST series problems.
时空(ST)图建模近来受到越来越多的关注。现有的大多数方法都依赖于预定义的图结构,或者在整个训练过程中构建一个单一的可学习图。然而,由于节点关系会随着时间的推移而不断演变,因此使用预定义的图结构来有效捕捉动态的 ST 变化具有挑战性。此外,这些方法通常只利用原始数据,忽略了外部时间因素。因此,我们提出了一种新颖的时变图卷积网络模型,该模型整合了外部因素,用于多特征 ST 序列预测。首先,我们利用注意力构建时变邻接矩阵,捕捉节点之间的动态空间关系。在训练、验证和测试阶段,图结构会随时间而调整。然后,我们利用门控激活单元和残差连接,通过扩张因果卷积对时间依赖性进行建模。值得注意的是,通过嵌入绝对时间和融合多特征,预测的准确性得到了提高。该模型已被应用于三个真实世界的多特征数据集,在所有情况下都达到了最先进的性能。实验表明,该方法在应用于多特征和多变量 ST 序列问题时具有很高的准确性和鲁棒性。
{"title":"TVGCN: Time-varying graph convolutional networks for multivariate and multifeature spatiotemporal series prediction","authors":"Feiyan Sun, Wenning Hao, Ao Zou, Kai Cheng","doi":"10.1177/00368504241283315","DOIUrl":"https://doi.org/10.1177/00368504241283315","url":null,"abstract":"Spatiotemporal (ST) graph modeling has garnered increasing attention recently. Most existing methods rely on a predefined graph structure or construct a single learnable graph throughout training. However, it is challenging to use a predefined graph structure to capture dynamic ST changes effectively due to evolving node relationships over time. Furthermore, these methods typically utilize only the original data, neglecting external temporal factors. Therefore, we put forward a novel time-varying graph convolutional network model that integrates external factors for multifeature ST series prediction. Firstly, we construct a time-varying adjacency matrix using attention to capture dynamic spatial relationships among nodes. The graph structure adapts over time during training, validation, and testing phases. Then, we model temporal dependence by dilated causal convolution, leveraging gated activation unit and residual connection. Notably, the prediction accuracy is enhanced through the incorporation of embedding absolute time and the fusion of multifeature. This model has been applied to three real-world multifeature datasets, achieving state-of-the-art performance in all cases. Experiments show that the method has high accuracy and robustness when applied to multifeature and multivariate ST series problems.","PeriodicalId":56061,"journal":{"name":"Science Progress","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142262726","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
The impact of the Cochlear™ Osia® 2 System on patients with mixed or conductive hearing loss: A comparison with Cochlear™ Baha® Attract System outcomes 科利耳™ Osia® 2 系统对混合性或传导性听力损失患者的影响:与科利耳™ Baha® Attract 系统效果的比较
IF 2.1 4区 综合性期刊 Q2 MULTIDISCIPLINARY SCIENCES Pub Date : 2024-09-12 DOI: 10.1177/00368504241280252
Kyeong-Suk Park, Hong-Chan Kim, Sungsu Lee, Hyong-Ho Cho
ObjectiveThis prospective study assessed the efficacy of the Cochlear™ Osia® 2 System compared to the previous Baha® Attract System in patients with mixed or conductive hearing loss (MHL/CHL).MethodsIn this prospective case-control study, 10 patients (2 men and 8 women) with MHL/CHL were implanted with the Osia® 2 System. Their audiological outcomes were compared with 13 patients (2 men and 11 women) who had previously been implanted with the transcutaneous Baha® Attract system. We compared the complications and compliance of the two groups. Also, in the Osia 2 System group, subjective satisfaction was assessed using the Korean version of the International Outcome Inventory for Hearing Aids (K-IOI-HA) questionnaire and the Abbreviated Profile of Hearing Aid Benefit (APHAB) questionnaire.ResultsComplications such as poor magnetization, pain & infection, and abnormal noise were more common in the Baha Attract group, although not statistically significant. Also, the Osia 2 group exhibited better compliance. Subjective satisfaction was assessed using the K-IOI-HA and APHAB questionnaires with the Osia 2 group, revealing significantly improved scores in ease of communication, reverberation, background noise, and higher K-IOI-HA scores post-implantation. Postoperative-aided thresholds with both systems were significantly lower than preoperative-unaided thresholds, with the Osia 2 System demonstrating notably high satisfaction levels. Although both systems showed similar preoperative and postoperative word-recognition scores, the Osia 2 System provided greater audiological gain, especially at 2 kHz and 4 kHz frequencies. Additionally, the functional gain of both systems was comparable across all frequencies.ConclusionsThe Osia 2 System demonstrated high subjective satisfaction and improved audiological outcomes compared to the Baha Attract system in patients with conductive or mixed hearing loss. Its superior audiological gain, particularly at critical frequencies, along with better compliance, suggests it as a favorable option for this patient population.
方法在这项前瞻性病例对照研究中,10 名 MHL/CHL 患者(2 名男性和 8 名女性)植入了 Osia® 2 系统。他们的听力结果与之前植入经皮 Baha® Attract 系统的 13 名患者(2 名男性和 11 名女性)进行了比较。我们比较了两组患者的并发症和依从性。此外,在 Osia 2 系统组中,我们还使用韩文版国际助听器结果量表(K-IOI-HA)问卷和助听器效益简表(APHAB)问卷评估了患者的主观满意度。结果Baha Attract 组中磁化不良、疼痛、感染和异常噪音等并发症更为常见,但无统计学意义。此外,Osia 2 组的依从性更好。使用 K-IOI-HA 和 APHAB 问卷对 Osia 2 组的主观满意度进行了评估,结果显示,植入后,Osia 2 组在沟通便利性、混响、背景噪声方面的得分明显提高,K-IOI-HA 得分也更高。两种系统的术后辅助阈值均明显低于术前无辅助阈值,Osia 2 系统的满意度明显较高。虽然两种系统的术前和术后单词识别评分相似,但 Osia 2 系统的听力增益更大,尤其是在 2 kHz 和 4 kHz 频率上。结论与 Baha Att 系统相比,Osia 2 系统对传导性或混合性听力损失患者的主观满意度高,听力效果更好。其卓越的听觉增益(尤其是在临界频率)和更好的顺应性表明,它是这类患者的一个有利选择。
{"title":"The impact of the Cochlear™ Osia® 2 System on patients with mixed or conductive hearing loss: A comparison with Cochlear™ Baha® Attract System outcomes","authors":"Kyeong-Suk Park, Hong-Chan Kim, Sungsu Lee, Hyong-Ho Cho","doi":"10.1177/00368504241280252","DOIUrl":"https://doi.org/10.1177/00368504241280252","url":null,"abstract":"ObjectiveThis prospective study assessed the efficacy of the Cochlear™ Osia<jats:sup>®</jats:sup> 2 System compared to the previous Baha<jats:sup>®</jats:sup> Attract System in patients with mixed or conductive hearing loss (MHL/CHL).MethodsIn this prospective case-control study, 10 patients (2 men and 8 women) with MHL/CHL were implanted with the Osia<jats:sup>®</jats:sup> 2 System. Their audiological outcomes were compared with 13 patients (2 men and 11 women) who had previously been implanted with the transcutaneous Baha<jats:sup>®</jats:sup> Attract system. We compared the complications and compliance of the two groups. Also, in the Osia 2 System group, subjective satisfaction was assessed using the Korean version of the International Outcome Inventory for Hearing Aids (K-IOI-HA) questionnaire and the Abbreviated Profile of Hearing Aid Benefit (APHAB) questionnaire.ResultsComplications such as poor magnetization, pain &amp; infection, and abnormal noise were more common in the Baha Attract group, although not statistically significant. Also, the Osia 2 group exhibited better compliance. Subjective satisfaction was assessed using the K-IOI-HA and APHAB questionnaires with the Osia 2 group, revealing significantly improved scores in ease of communication, reverberation, background noise, and higher K-IOI-HA scores post-implantation. Postoperative-aided thresholds with both systems were significantly lower than preoperative-unaided thresholds, with the Osia 2 System demonstrating notably high satisfaction levels. Although both systems showed similar preoperative and postoperative word-recognition scores, the Osia 2 System provided greater audiological gain, especially at 2 kHz and 4 kHz frequencies. Additionally, the functional gain of both systems was comparable across all frequencies.ConclusionsThe Osia 2 System demonstrated high subjective satisfaction and improved audiological outcomes compared to the Baha Attract system in patients with conductive or mixed hearing loss. Its superior audiological gain, particularly at critical frequencies, along with better compliance, suggests it as a favorable option for this patient population.","PeriodicalId":56061,"journal":{"name":"Science Progress","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142225166","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
期刊
Science Progress
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1