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Semantic segmentation models with frozen weights for railway track detection.
IF 2.6 4区 综合性期刊
Science Progress Pub Date : 2024-10-01 DOI: 10.1177/00368504241304204
Seungmin Lee, Beomseong Kim, Heesung Lee
{"title":"Semantic segmentation models with frozen weights for railway track detection.","authors":"Seungmin Lee, Beomseong Kim, Heesung Lee","doi":"10.1177/00368504241304204","DOIUrl":"https://doi.org/10.1177/00368504241304204","url":null,"abstract":"<p><p>In recent years, the application of pretrained models in specialized domains has become increasingly important. Traditionally, adapting these models involved fine-tuning their parameters and structures through retraining. However, these fine-tuning methods can be inefficient, particularly when addressing data from specific domains or when modifications are needed in the lower layers of large-scale pretrained models. This study aims to investigate the effectiveness of using pretrained models with frozen weights for downstream tasks in the context of railway track detection, particularly focusing on the railway system. To achieve this, we employed a large-scale semantic segmentation model that had been pretrained on extensive datasets. The models utilized were kept with fixed weights, eliminating the need for retraining. We conducted a comparative analysis of various pretrained models sourced from different datasets to identify the most suitable model for the track detection system. The findings from our experiments revealed the performance metrics of the selected pretrained models, highlighting their effectiveness in the specific domain of railway track detection. Overall, this research demonstrates the practical applicability of pretrained models with frozen weights in specialized fields such as railway systems, offering insights into their usefulness and potential for improving detection algorithms in this domain.</p>","PeriodicalId":56061,"journal":{"name":"Science Progress","volume":"107 4","pages":"368504241304204"},"PeriodicalIF":2.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142848523","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
Sliding mode control with self-adaptive parameters of a 5-DOF hybrid robot. 具有自适应参数的 5-DOF 混合机器人滑模控制。
IF 2.6 4区 综合性期刊
Science Progress Pub Date : 2024-10-01 DOI: 10.1177/00368504241286381
Yanqin Zhao, Mingkun Wu, Jiangping Mei, Wen Zhao, Yan Jin
{"title":"Sliding mode control with self-adaptive parameters of a 5-DOF hybrid robot.","authors":"Yanqin Zhao, Mingkun Wu, Jiangping Mei, Wen Zhao, Yan Jin","doi":"10.1177/00368504241286381","DOIUrl":"10.1177/00368504241286381","url":null,"abstract":"<p><p>Due to the advantages of high stiffness, high precision, high load capacity and large workspace, hybrid robots are applicable to drilling and milling of complicated components with large sizes, for instance car panels. However, the difficulty in establishing an exact dynamic model and external disturbances affect the high accuracy control directly, which will decrease the machining accuracy and thereby affect the machining quality and efficiency of the system. Sliding mode control is an effective approach for high-order nonlinear dynamic systems since that it is very insensitive to disturbances and parameter variations. However, chattering may exist in traditional sliding mode control with fixed parameters, which results from a constant approaching speed. Besides, the approaching speed will affect the chattering strength directly. To solve these problems, a modified sliding mode controller with self-adaptive parameters is proposed to enhance the trajectory-tracking performance of a 5-degree-of-freedom hybrid robot. Firstly, the kinematic model of the robot is established. Then adopting the principle of virtual work, a rigid dynamic model of the robot is built. Based on the built dynamic model, a modified sliding mode control method is developed, of which the approaching speed is dependent on the system state. Finally, the sliding mode controller with self-adaptive parameters is created for a hybrid robot. The proposed sliding mode controller can achieve a rapid approaching speed and suppress chattering simultaneously. Simulation results demonstrate that the proposed modified sliding mode controller can achieve a comparatively accurate and smooth trajectory, which owns good robustness to external disturbances.</p>","PeriodicalId":56061,"journal":{"name":"Science Progress","volume":"107 4","pages":"368504241286381"},"PeriodicalIF":2.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11483726/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142333128","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
Study on influencing factors of controllable mechanical behavior of rock-like porous materials. 类岩石多孔材料可控力学行为影响因素研究
IF 2.6 4区 综合性期刊
Science Progress Pub Date : 2024-10-01 DOI: 10.1177/00368504241291395
Xiaojing Zhu, Qingxin Qi, Yonghui Xiao, Haitao Li
{"title":"Study on influencing factors of controllable mechanical behavior of rock-like porous materials.","authors":"Xiaojing Zhu, Qingxin Qi, Yonghui Xiao, Haitao Li","doi":"10.1177/00368504241291395","DOIUrl":"10.1177/00368504241291395","url":null,"abstract":"<p><p>Due to the discrete and non-homogeneous of similar materials and the inability to realize large-size and original scale modeling, it is difficult to restore the structure and stress state of underground coal and rock mass in similar simulation tests. To solve this problem, a lightweight and suitable for large-scale modeling similar material, rock-like porous material has been developed. The quasi-static uniaxial compression experiment was carried out by using the large tonnage multi-module electronic control test system. And the influencing factors of controllable mechanical behavior of rock-like porous materials were studied. The results showed that, under uniaxial compression conditions, the material stress-strain curve exhibits three phases: elastic stage, failure stage, and platform stage. The uniaxial compressive strength, elasticity modulus, stress drop, and softening modulus of rock-like porous materials basically increase with the increase of density. The stress after peak strength changes from a slow decrease to a \"stepped\" or even \"cliff like\" downward trend. Polypropylene fibers have the effect of enhancing the uniaxial compressive strength, elasticity modulus, stress drop, softening modulus, shear deformation, and residual strength stability of rock-like porous materials. The rock-like porous material has a critical loading velocity, and it increases with density. At the critical loading velocity, the material shows obvious shear failure, and the shear inclination angle is the largest, and so is the uniaxial compressive strength. Through the experimental research, the influence laws of density, polypropylene fiber, and loading velocity on the failure mode, mechanical parameters, and mechanical behavior of the material are clarified, and the quantitative relationship between density and each mechanical parameter is obtained. The research is helpful to realize the accurate control of mechanical behavior of rock-like porous materials and further inverts the deformation and failure mechanism of underground coal and rock structures through indoor similar simulation tests.</p>","PeriodicalId":56061,"journal":{"name":"Science Progress","volume":"107 4","pages":"368504241291395"},"PeriodicalIF":2.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11526400/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142513549","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
Identification and functional analysis of genes mediating osteoclast-driven progression of osteoporosis. 鉴定介导破骨细胞驱动骨质疏松症进展的基因并进行功能分析。
IF 2.6 4区 综合性期刊
Science Progress Pub Date : 2024-10-01 DOI: 10.1177/00368504241300723
Qu Xu, Gangning Feng, Zhihai Zhang, Jiangbo Yan, Zhiqun Tang, Rui Wang, Penggang Ma, Ye Ma, Guang Zhu, Qunhua Jin
{"title":"Identification and functional analysis of genes mediating osteoclast-driven progression of osteoporosis.","authors":"Qu Xu, Gangning Feng, Zhihai Zhang, Jiangbo Yan, Zhiqun Tang, Rui Wang, Penggang Ma, Ye Ma, Guang Zhu, Qunhua Jin","doi":"10.1177/00368504241300723","DOIUrl":"10.1177/00368504241300723","url":null,"abstract":"<p><strong>Objective: </strong>The pathological mechanism of osteoporosis (OP) involves increased bone resorption mediated by osteoclasts and decreased bone formation mediated by osteoblasts, leading to an imbalance in bone homeostasis. Identifying key molecules in osteoclast-mediated OP progression is crucial for the prevention and treatment of OP.</p><p><strong>Methods: </strong>Differential expression analysis and weighted gene co-expression network analysis (WGCNA) were performed on the OP patient datasets from the GEO database. The results were intersected with the differential expression results from the osteoclast differentiation dataset to identify key genes. These key genes were then subjected to disease relevance analysis, and consensus clustering was performed on OP patient samples based on their expression profiles. The subgroups were analyzed for differences, followed by GO, KEGG, GSEA, and GSVA analyses, and immune infiltration. Finally, osteoclast differentiation model was constructed. After validating the success of the model using TRAP and F-actin staining, the differential expression of key genes was validated in vitro via Western blot.</p><p><strong>Results: </strong>CTRL, ARHGEF5, PPAP2C, VSIG2, and PBLD were identified as key genes. These genes exhibited strong disease relevance (AUC > 0.9). Functional enrichment results also indicated their close association with OP and osteoclast differentiation. In vitro differential expression validation showed that during osteoclast differentiation, CTRL was downregulated, while ARHGEF5, PPAP2C, VSIG2, and PBLD were upregulated, with all differences being statistically significant (<i>P </i>< 0.05).</p><p><strong>Discussion: </strong>Currently, there are no studies on the effects of these five genes on osteoclast differentiation. Therefore, it is meaningful to design in vivo and in vitro perturbation experiments to observe the impact of each gene on osteoclast differentiation and OP progression.</p><p><strong>Conclusion: </strong>CTRL, ARHGEF5, PPAP2C, VSIG2, and PBLD show high potential as molecular targets for basic and clinical research in osteoclast-mediated OP.</p>","PeriodicalId":56061,"journal":{"name":"Science Progress","volume":"107 4","pages":"368504241300723"},"PeriodicalIF":2.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11590132/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142717897","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
Evaluation of aging impact on rheological and chemical characteristics of crumb rubber-modified warm asphalt binders. 评估老化对橡胶屑改性温沥青胶结料流变学和化学特性的影响。
IF 2.6 4区 综合性期刊
Science Progress Pub Date : 2024-10-01 DOI: 10.1177/00368504241300198
Alaa Sukkari, Ghazi Al-Khateeb, Waleed Zeiada, Helal Ezzat
{"title":"Evaluation of aging impact on rheological and chemical characteristics of crumb rubber-modified warm asphalt binders.","authors":"Alaa Sukkari, Ghazi Al-Khateeb, Waleed Zeiada, Helal Ezzat","doi":"10.1177/00368504241300198","DOIUrl":"10.1177/00368504241300198","url":null,"abstract":"<p><p>Asphalt pavements are consistently subjected to environmental and loading conditions that affect their durability, such as oxidative aging. Modification of the pavements assists in reducing the aging-induced stiffness. One of these solutions is crumb rubber (CR)-modified warm mix asphalt (WMA) binders. This study aims to assess the long-term performance and effects of aging on CR-modified WMA binders through a series of physical, rheological, and chemical tests. 2% and 4% of Sasobit, a wax-based additive, and 1.5% and 3% of Zycotherm, a nano-based chemical additive, with 10%, 15%, and 20% CR, were utilized. The binders were aged using a rolling thin film oven (RTFO) and pressurized aging vessel. The unaged and long-term aged asphalt binders were tested. Rheological properties, using master curves and zero shear viscosity, physical properties measured through elastic recovery, along with chemical analysis using Fourier transform infrared (FTIR) spectroscopy, were carried out on the binders before and after aging. Based on the physical and rheological aging indices, Sasobit-modified asphalt binders exhibited superior resistance to aging and rutting compared to Zycotherm-modified binders. Specifically, the Sasobit 4% and 20% crumb rubber blend showed the highest resistance to physical aging, while Zycotherm-modified binders demonstrated improved chemical aging resistance. Adding crumb rubber significantly enhanced the stiffness and elasticity of the asphalt binders, further reducing the effects of aging. FTIR analysis confirmed that Sasobit and crumb rubber reduced oxidation and volatile component loss during aging.</p>","PeriodicalId":56061,"journal":{"name":"Science Progress","volume":"107 4","pages":"368504241300198"},"PeriodicalIF":2.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11590138/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142717894","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
Guillain-Barrè syndrome after treatment with anti-tumour necrosis factor α (etanercept) in a rheumatoid arthritis patient: Case report and literature review.
IF 2.6 4区 综合性期刊
Science Progress Pub Date : 2024-10-01 DOI: 10.1177/00368504241304203
Mera H Doden, Mahmoud R Manasra, Bara M AbuIrayyeh, Alaa R Al-Ihribat, Maram Albandak
{"title":"Guillain-Barrè syndrome after treatment with anti-tumour necrosis factor α (etanercept) in a rheumatoid arthritis patient: Case report and literature review.","authors":"Mera H Doden, Mahmoud R Manasra, Bara M AbuIrayyeh, Alaa R Al-Ihribat, Maram Albandak","doi":"10.1177/00368504241304203","DOIUrl":"10.1177/00368504241304203","url":null,"abstract":"<p><p>Rheumatoid arthritis (RA) is often treated with anti-tumor necrosis factor α (anti-TNF-α) medications. While these drugs can cause common side effects such as injection-site and infusion reactions, rare cases of Guillain-Barré syndrome (GBS) have been reported. It's a potentially life-threatening condition characterized by progressive, ascending weakness of the extremities and areflexia, with an incidence of about 1.5 cases per 100,000 annually and a mortality rate of around 5%. It has been linked to various triggers, including infections, vaccinations, and medications like TNF inhibitors. Anti-TNF-α treatments may induce GBS by activating latent infections, increasing susceptibility, triggering autoimmune responses, or disrupting the balance of TNF-α in the peripheral nervous system. We report a 39-year-old female with a 26-year history of RA, initially treated with methotrexate until it was discontinued due to myelosuppression. She was then prescribed etanercept. A few weeks later, she developed numbness and burning pain in her limbs. GBS was suspected based on her symptoms, and nerve conduction studies confirmed the diagnosis. She was successfully treated with plasmapheresis.</p>","PeriodicalId":56061,"journal":{"name":"Science Progress","volume":"107 4","pages":"368504241304203"},"PeriodicalIF":2.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11618906/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142781363","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
Optimal condition confirmation of treatment conditions through analysis of intratumoral apoptotic temperature range of microwave ablation for various microwave frequencies and antenna insertion depth.
IF 2.6 4区 综合性期刊
Science Progress Pub Date : 2024-10-01 DOI: 10.1177/00368504241300855
Donghyuk Kim, Hyunjung Kim
{"title":"Optimal condition confirmation of treatment conditions through analysis of intratumoral apoptotic temperature range of microwave ablation for various microwave frequencies and antenna insertion depth.","authors":"Donghyuk Kim, Hyunjung Kim","doi":"10.1177/00368504241300855","DOIUrl":"10.1177/00368504241300855","url":null,"abstract":"<p><p>Microwave ablation is a therapeutic technique that kills tumors by inducing heat generation in biological tissue through microwave emissions. Microwave ablation is a minimally invasive treatment technique, which has the advantage of treating deeply located tumors with less bleeding than traditional surgical techniques. In this study, the therapeutic effect of microwave ablation was analyzed from the perspective of the temperature range where apoptosis and necrosis occur. Through the numerical modelling, the tumor located inside the liver tissue was implemented, and the temperature distribution in the hepatic tissue was calculated by varying value of the microwave frequency, microwave antenna input power, and the insertion depth of the microwave coaxial antenna. Microwave frequencies were selected as 915, and 2450 MHz, and the insertion depth of the microwave coaxial antenna was set at a distance difference between the tumor tip and the slot of 4 to 16 mm. In addition, the microwave antenna input power was set to a range of 0 to 60 W. Based on the obtained temperature distribution, the apoptotic variables, which are parameters specifically defined apoptosis ratios that can quantitatively verify the therapeutic effect, were calculated to derive the microwave ablation treatment condition that maximizes the therapeutic effect for each microwave frequency. Through the quantitative analysis of apoptotic variables, the optimal conditions for maximum therapeutic effect were derived for each microwave frequency analyzed in this study. For frequencies of 915 MHz, the optimal insertion depth of the antenna is 8 mm above the bottom of the tumor, and the optimal microwave input power is 40 W. For 2450 MHz, the optimal insertion depth and input power were found to be 4 mm and 4 W, respectively. Ultimately, it is expected that the results presented in this study will lead to more improved treatment of microwave ablation in practice.</p>","PeriodicalId":56061,"journal":{"name":"Science Progress","volume":"107 4","pages":"368504241300855"},"PeriodicalIF":2.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11618935/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142781371","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
Interventional treatment of right lower lobe bronchial schwannoma under bronchoscopy: A case report and literature review.
IF 2.6 4区 综合性期刊
Science Progress Pub Date : 2024-10-01 DOI: 10.1177/00368504241305911
Xiyue Li, Ximiao Yu, Ruiqi Luo, Xun Wang
{"title":"Interventional treatment of right lower lobe bronchial schwannoma under bronchoscopy: A case report and literature review.","authors":"Xiyue Li, Ximiao Yu, Ruiqi Luo, Xun Wang","doi":"10.1177/00368504241305911","DOIUrl":"https://doi.org/10.1177/00368504241305911","url":null,"abstract":"<p><p>Bronchial schwannoma is a rare benign tumor traditionally managed through surgical resection. This case report describes a 69-year-old Chinese woman with an asymptomatic bronchial schwannoma incidentally discovered during routine health check-up. Computed tomography (CT) and bronchoscopy revealed a broad-based mass (27 mm × 16 mm) at the right lower lobe bronchus, causing complete obstruction of the dorsal segment and severe stenosis (>80%) of the basal segment. Histopathological and immunohistochemical analyses confirmed the diagnosis of schwannoma. The patient underwent a single-session multimodal bronchoscopic treatment combining cryotherapy, high-frequency electrocoagulation, and laser therapy, with minimal bleeding (<5 ml). Post-intervention evaluation showed a fully patent right lower lobe bronchus, and at 8-month follow-up, CT confirmed complete resolution without tumor recurrence. This case demonstrates that carefully planned bronchoscopic intervention can effectively manage selected cases of bronchial schwannoma while preserving lung function and minimizing procedural risks.</p>","PeriodicalId":56061,"journal":{"name":"Science Progress","volume":"107 4","pages":"368504241305911"},"PeriodicalIF":2.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142877985","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
Effect of periodic vibration-isolation piles on soil vibration in deep-buried tunnels of suburban railways.
IF 2.6 4区 综合性期刊
Science Progress Pub Date : 2024-10-01 DOI: 10.1177/00368504241282801
Shusen Cao, Dong Li, Jili Yin, Qin Xu, Dongdong Qian, Chao Chen, Hongkai Wang, Lunzheng Zhang, Xiangdong Shi, Futong Wang
{"title":"Effect of periodic vibration-isolation piles on soil vibration in deep-buried tunnels of suburban railways.","authors":"Shusen Cao, Dong Li, Jili Yin, Qin Xu, Dongdong Qian, Chao Chen, Hongkai Wang, Lunzheng Zhang, Xiangdong Shi, Futong Wang","doi":"10.1177/00368504241282801","DOIUrl":"https://doi.org/10.1177/00368504241282801","url":null,"abstract":"<p><p>This study aims to investigate the impact of isolation piles on soil vibrations in the environment surrounding suburban railways. Initially, a comprehensive numerical model of the train was established to simulate the wheel-rail interaction forces, which were then applied to a three-dimensional coupled track-soil model. The accuracy of the model was validated through comparison with measured data. The focus of the research is to analyze the vibration isolation effects of single-row, double-row, and triple-row piles, with particular attention to the influence of pile spacing in double-row piles on isolation effectiveness. The study found that the effectiveness of isolation piles in reducing soil vibration acceleration within a depth range of 0 m to 2 m decreases as the pile spacing increases. When the pile spacing reaches 2 times the pile radius, single-row piles exhibit the best vibration isolation effect. For reducing peak soil acceleration within a depth range of 4 m to 8 m, single-row piles are most effective when the pile spacing exceeds 1 times the pile radius. To attenuate peak soil acceleration at depths greater than 6 m, the pile spacing for single-row and double-row piles should be set at 0.5 times the pile radius, while triple-row piles should have a spacing of 1 times the pile radius. In terms of reducing peak soil velocity, single-row piles demonstrate better vibration isolation effects. To reduce peak velocity in soil at depths greater than 2 m, the pile spacing for single-row and double-row piles should be set at 0.5 times the pile radius, while triple-row piles should be spaced at 1 times the pile radius. For reducing peak soil displacement, single-row piles should be used, with optimal results achieved at a spacing of 1 times the pile radius.</p>","PeriodicalId":56061,"journal":{"name":"Science Progress","volume":"107 4","pages":"368504241282801"},"PeriodicalIF":2.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142900883","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
YOLO-Faster: An efficient remote sensing object detection method based on AMFFN. YOLO-Faster:基于 AMFFN 的高效遥感物体检测方法。
IF 2.6 4区 综合性期刊
Science Progress Pub Date : 2024-10-01 DOI: 10.1177/00368504241280765
Yicheng Tong, Guan Yue, Longfei Fan, Guosen Lyu, Deya Zhu, Yan Liu, Boyuan Meng, Shu Liu, Xiaokai Mu, Congling Tian
{"title":"YOLO-Faster: An efficient remote sensing object detection method based on AMFFN.","authors":"Yicheng Tong, Guan Yue, Longfei Fan, Guosen Lyu, Deya Zhu, Yan Liu, Boyuan Meng, Shu Liu, Xiaokai Mu, Congling Tian","doi":"10.1177/00368504241280765","DOIUrl":"10.1177/00368504241280765","url":null,"abstract":"<p><p>As a pivotal task within computer vision, object detection finds application across a diverse spectrum of industrial scenarios. The advent of deep learning technologies has significantly elevated the accuracy of object detectors designed for general-purpose applications. Nevertheless, in contrast to conventional terrestrial environments, remote sensing object detection scenarios pose formidable challenges, including intricate and diverse backgrounds, fluctuating object scales, and pronounced interference from background noise, rendering remote sensing object detection an enduringly demanding task. In addition, despite the superior detection performance of deep learning-based object detection networks compared to traditional counterparts, their substantial parameter and computational demands curtail their feasibility for deployment on mobile devices equipped with low-power processors. In response to the aforementioned challenges, this paper introduces an enhanced lightweight remote sensing object detection network, denoted as YOLO-Faster, built upon the foundation of YOLOv5. Firstly, the lightweight design and inference speed of the object detection network is augmented by incorporating the lightweight network as the foundational network within YOLOv5, satisfying the demand for real-time detection on mobile devices. Moreover, to tackle the issue of detecting objects of different scales in large and complex backgrounds, an adaptive multiscale feature fusion network is introduced, which dynamically adjusts the large receptive field to capture dependencies among objects of different scales, enabling better modeling of object detection scenarios in remote sensing scenes. At last, the robustness of the object detection network under background noise is enhanced through incorporating a decoupled detection head that separates the classification and regression processes of the detection network. The results obtained from the public remote sensing object detection dataset DOTA show that the proposed method has a mean average precision of 71.4% and a detection speed of 38 frames per second.</p>","PeriodicalId":56061,"journal":{"name":"Science Progress","volume":"107 4","pages":"368504241280765"},"PeriodicalIF":2.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11475215/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142367663","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
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