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  • 1
    Online Resource
    Online Resource
    Investigation of RBFNN Based on Improved PSO Optimization Algorithm for Performance and Emissions Prediction of a High‐Pressure Common‐Rail Diesel Engine
    Wiley ; 2023
    In:  Advanced Theory and Simulations Vol. 6, No. 3 ( 2023-03)
    Details
    In: Advanced Theory and Simulations, Wiley, Vol. 6, No. 3 ( 2023-03)
    Abstract: The purpose of this study is improve calibration efficiency and obtain accurate diesel engine operating parameters, achieving improved diesel engine emissions and fuel efficiency. A PSO‐RBF (particle swarm optimization‐radial basis function) diesel engine performance prediction model combining an improved PSO (particle swarm optimization algorithm and an RBF neural network is proposed. A space‐filling experimental design method for diesel engine performance prediction is proposed based on the actual operating conditions of diesel engines. Training data are collected at the bench to build the RBF prediction model. An optimization PSO search method is proposed to improve the PSO optimization capability. An improved PSO algorithm is used to optimize the model and improve prediction accuracy. Then the BSFC (diesel brake‐specific fuel consumption), NO x ((Nitrogen Oxid), CO (Carbon Monoxide), and HC (Hydrocarbon) prediction models are constructed. Results show that the PSO‐RBF can find the global solution with good prediction accuracy and generalization ability during small amounts of data. The PSO‐RBF model fitting degrees of BSFC, NO x , CO, and HC are 0.9952, 0.9910, 0.9820, and 0.9870 respectively. Mean relative errors are 3.02%, 2.78%, 1.39%, and 2.01% respectively. Mean absolute percentage errors are 1.58%, 3.26%, 3.69%, and 2.96% respectively. The optimized model R 2 (Model determination coefficient) is improved by 0.065, 0.102, 0.10, and 0.085, respectively.
    Type of Medium: Online Resource
    ISSN: 2513-0390 , 2513-0390
    URL: Issue
    URL: Article
    DOI: 10.1002/adts.v6.3
    DOI: 10.1002/adts.202200656
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 2894557-8
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  • 2
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    The Insertion Mechanism of a Living Cell Determined by the Stress Segmentation Effect of the Cell Membrane during the Tip–Cell Interaction
    Wiley ; 2018
    In:  Small Vol. 14, No. 22 ( 2018-05)
    Details
    In: Small, Wiley, Vol. 14, No. 22 ( 2018-05)
    Abstract: Atomic force microscopy probes are proved to be powerful tools to measure and manipulate the individual cell, providing potential applications for the controlled drug/protein delivery. However, the measured insertion efficiency varies dramatically from 20 to 80%, in some cases, the nanotip can never penetrate the cell membrane no matter how much force is applied to it. Thus, the insertion mechanism of a living cell during the tip–cell interaction must be thoroughly investigated before this technology comes into practical applications. In this work, a multistructural cell model is established to study the tip–membrane interaction. The simulation results show that the stress of the cell membrane can be divided into two stages by the stress segmentation point S. After point S, the stress of the cell membrane increases slightly and most of the indentation force is allocated to the cytoskeleton. This phenomenon is called “stress segmentation effect of the cell membrane,” which confirms the hypothesis based on the experimental studies. Moreover, according to the experimental and numerical studies, the hypothesis of the stress segmentation effect also explains the reason that modifying the cell membrane or using the manmade sharpened nanotip can increase the insertion efficiency.
    Type of Medium: Online Resource
    ISSN: 1613-6810 , 1613-6829
    URL: Issue
    URL: Article
    DOI: 10.1002/smll.v14.22
    DOI: 10.1002/smll.201703868
    Language: English
    Publisher: Wiley
    Publication Date: 2018
    detail.hit.zdb_id: 2168761-4
    detail.hit.zdb_id: 2168935-0
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  • 3
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    Multiobjective Optimization of Diesel Particulate Filter Regeneration Conditions Based on Machine Learning Combined with Intelligent Algorithms
    Wiley ; 2024
    In:  International Journal of Intelligent Systems Vol. 2024 ( 2024-4-1), p. 1-28
    Details
    In: International Journal of Intelligent Systems, Wiley, Vol. 2024 ( 2024-4-1), p. 1-28
    Abstract: To reduce diesel emissions and fuel consumption and improve DPF regeneration performance, a multiobjective optimization method for DPF regeneration conditions, combined with nondominated sorting genetic algorithms (NSGA-III) and a back propagation neural network (BPNN) prediction model, is proposed. In NSGA-III, DPF regeneration temperature (T4 and T5), O 2 , NO x , smoke, and brake-specific fuel consumption (BSFC) are optimized by adjusting the engine injection control parameters. An improved seagull optimization algorithm (ISOA) is proposed to enhance the accuracy of BPNN predictions. The ISOA-BP diesel engine regeneration condition prediction model is established to evaluate fitness. The optimized fuel injection parameters are programmed into the engine’s electronic control unit (ECU) for experimental validation through steady-state testing, DPF active regeneration testing, and WHTC transient cycle testing. The results demonstrate that the introduced ISOA algorithm exhibits faster convergence and improved search abilities, effectively addressing calculation accuracy challenges. A comparison between the SOA-BPNN and ISOA-BPNN models shows the superior accuracy of the latter, with reduced errors and improved R 2 values. The optimization method, integrating NSGA-III and ISOA-BPNN, achieves multiobjective calibration for T4 and T5 temperatures. Steady-state testing reveals average increases of 3.14%, 2.07%, and 10.79% in T4, T5, and exhaust oxygen concentrations, while NO x , smoke, and BSFC exhibit average decreases of 8.68%, 12.07%, and 1.03%. Regeneration experiments affirm the efficiency of the proposed method, with DPF regeneration reaching 88.2% and notable improvements in T4, T5, and oxygen concentrations during WHTC transient testing. This research provides a promising and effective solution for calibrating the regeneration temperature of DPF, thus reducing emissions and fuel consumption of diesel engines while ensuring safe and efficient DPF regeneration.
    Type of Medium: Online Resource
    ISSN: 1098-111X , 0884-8173
    URL: Article
    DOI: 10.1155/2024/7775139
    Language: English
    Publisher: Wiley
    Publication Date: 2024
    detail.hit.zdb_id: 56800-4
    detail.hit.zdb_id: 2002369-8
    SSG: 24,1
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  • 4
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    ChemInform Abstract: Phosphine‐Catalyzed [3 + 2] and [3 + 3] Annulations of Azomethine Imines with Ethyl 2‐Butynoate.
    Wiley ; 2012
    In:  ChemInform Vol. 43, No. 34 ( 2012-08-21)
    Details
    In: ChemInform, Wiley, Vol. 43, No. 34 ( 2012-08-21)
    Type of Medium: Online Resource
    ISSN: 0931-7597 , 1522-2667
    URL: Issue
    URL: Article
    DOI: 10.1002/chin.v43.34
    DOI: 10.1002/chin.201234022
    Language: English
    Publisher: Wiley
    Publication Date: 2012
    detail.hit.zdb_id: 90598-7
    detail.hit.zdb_id: 2110203-X
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  • 5
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    Effects of Autologous Platelet-Rich Plasma on Healing of Peptic Ulcers: A Randomized Controlled Trial
    Wiley ; 2022
    In:  Gastroenterology Research and Practice Vol. 2022 ( 2022-7-15), p. 1-9
    Details
    In: Gastroenterology Research and Practice, Wiley, Vol. 2022 ( 2022-7-15), p. 1-9
    Abstract: Purpose. Peptic ulcer is a multifactorial and complex disease and affects a wide range of people worldwide. We provided a novel therapeutic approach for peptic ulcer and observed its effect. Methods. Peptic ulcer patients were enrolled from 2016 to 2017 in Chongqing and randomly assigned to two groups: a control group that used only rabeprazole and a platelet-rich plasma (PRP) group that received a combination therapy of autologous PRP (aPRP) and rabeprazole. The therapeutic effect was assessed via the ulcer size and symptom score. Results. A total of 27 patients were included (12 patients in the control group and 15 patients in the PRP group) in this study. Our results showed that all participants have healed in 30 days, and there was no significant difference in healing time between the PRP group and the control group in different independent variables. However, regression analysis revealed that the healing time was 6.99 days shorter in the PRP group than that in the control group, and patients with higher symptom scores in the initial examination need more time to heal during treatment. Endoscopic results showed that the repaired ulcer in the PRP group was more similar to the normal gastric mucosa tissue than that the control group. Conclusion. This study showed an encouraging preliminary result that aPRP has a positive result in patients with peptic ulcer and seems to be a better choice for refractory peptic ulcer treatment. Although further follow-up studies are needed to determine the duration of efficacy of aPRP, the approach will be helpful in improving the clinical treatment of peptic ulcer.
    Type of Medium: Online Resource
    ISSN: 1687-630X , 1687-6121
    URL: Article
    DOI: 10.1155/2022/7944849
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 2435460-0
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  • 6
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    An immersed smoothed point interpolation method (IS‐PIM) for fluid‐structure interaction problems
    Wiley ; 2017
    In:  International Journal for Numerical Methods in Fluids Vol. 85, No. 4 ( 2017-10-10), p. 213-234
    Details
    In: International Journal for Numerical Methods in Fluids, Wiley, Vol. 85, No. 4 ( 2017-10-10), p. 213-234
    Abstract: An immersed smoothed point interpolation method using 3‐node triangular background cells is proposed to solve 2D fluid‐structure interaction problems for solids with large deformation/displacement placed in incompressible viscous fluid. In the framework of immersed‐type method, the governing equations can be decomposed into 3 parts on the basis of the fictitious fluid assumption. The incompressible Navier‐Stokes equations are solved using the semi‐implicit characteristic‐based split scheme, and solids are simulated using the newly developed edge‐based smoothed point interpolation method. The fictitious fluid domain can be used to calculate the coupling force. The numerical results show that immersed smoothed point interpolation method can avoid remeshing for moving solid based on immersed operation and simulate the contact phenomenon without an additional treatment between the solid and the fluid boundary. The influence from information transfer between solid domain and fluid domain on fluid‐structure interaction problems has been investigated. The numerical results show that the proposed interpolation schemes will generally improve the accuracy for simulating both fluid flows and solid structures.
    Type of Medium: Online Resource
    ISSN: 0271-2091 , 1097-0363
    URL: Issue
    URL: Article
    DOI: 10.1002/fld.v85.4
    DOI: 10.1002/fld.4379
    Language: English
    Publisher: Wiley
    Publication Date: 2017
    detail.hit.zdb_id: 245720-9
    detail.hit.zdb_id: 1491176-0
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  • 7
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    A coupled immersed boundary‐lattice Boltzmann method with smoothed point interpolation method for fluid‐structure interaction problems
    Wiley ; 2018
    In:  International Journal for Numerical Methods in Fluids Vol. 88, No. 8 ( 2018-11-20), p. 363-384
    Details
    In: International Journal for Numerical Methods in Fluids, Wiley, Vol. 88, No. 8 ( 2018-11-20), p. 363-384
    Abstract: The immersed boundary‐lattice Boltzmann method has been verified to be an effective tool for fluid‐structure interaction simulation associated with thin and flexible bodies. The newly developed smoothed point interpolation method (S‐PIM) can handle the largely deformable solids owing to its softened model stiffness and insensitivity to mesh distortion. In this work, a novel coupled method has been proposed by combining the immersed boundary‐lattice Boltzmann method with the S‐PIM for fluid‐structure interaction problems with large‐displacement solids. The proposed method preserves the simplicity of the lattice Boltzmann method for fluid solvers, utilizes the S‐PIM to establish the realistic constitutive laws for nonlinear solids, and avoids mesh regeneration based on the frame of the immersed boundary method. Both two‐ and three‐dimensional numerical examples have been carried out to validate the accuracy, convergence, and stability of the proposed method in consideration of comparative results with referenced solutions.
    Type of Medium: Online Resource
    ISSN: 0271-2091 , 1097-0363
    URL: Issue
    URL: Article
    DOI: 10.1002/fld.v88.8
    DOI: 10.1002/fld.4669
    Language: English
    Publisher: Wiley
    Publication Date: 2018
    detail.hit.zdb_id: 245720-9
    detail.hit.zdb_id: 1491176-0
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  • 8
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    Limb Reconstruction System Assisted Reduction and Internal Fixation for Intra‐Articular Calcaneal Fractures: A New Application
    Wiley ; 2023
    In:  Orthopaedic Surgery Vol. 15, No. 10 ( 2023-10), p. 2540-2548
    Details
    In: Orthopaedic Surgery, Wiley, Vol. 15, No. 10 ( 2023-10), p. 2540-2548
    Abstract: Minimally invasive reduction and fixation of intra‐articular calcaneal fractures poses great challenges for orthopaedic surgeons. The aim of the present study was to report the technical points, evaluate the efficacy of minimally invasive reduction and internal fixation assisted by the temporary limb reconstruction system (LRS) external fixator for intra‐articular calcaneal fractures, and propose the indications of our protocol. Methods In this retrospective study, a series of 34 consecutive closed and displaced intra‐articular calcaneal fractures involving the articular surface were treated by this technology between June 2016 and April 2018. X‐ray and computed tomography (CT) scans were performed before and after surgery to measure Bohler's angle; the length, height, and width of the calcaneus; and the mechanical axis of the hindfoot. Postoperative complications were recorded. Imaging and clinical outcomes were comprehensively evaluated using the American Orthopaedic Foot and Ankle Society (AOFAS) hindfoot‐ankle scoring system. After testing the normality of the data, Bohler's angle and the length of calcaneus were compared using the Wilcoxon signed‐rank test. The height, width of the calcaneus, and the mechanical axis of the hindfoot were compared using the Paired‐Samples t ‐test. Results Thirty‐two fractures were followed up for an average of 20.66 months (from 12 to 32 months). All fractures achieved stable reduction and bony union. The articular surface was reduced and fixed with direct vision through the sinus tarsi incision. No failure of internal fixation or loss of reduction was detected during follow‐up. There were no soft tissue complications. Bohler's angle; the length, height, and width of the calcaneus; and the mechanical axis of the hindfoot improved significantly. The AOFAS scores averaged 84.12 points; seven cases were rated excellent, 20 good, four fair, and one poor. Conclusions For intra‐articular calcaneal fractures, minimally invasive surgery assisted with temporary LRS external fixation can reconstruct the calcaneal shape and the sub‐talar articular surface. This simple surgical modality with limited complications may be helpful in the surgical treatment of most type II and III calcaneal fractures except comminuted fractures of the calcaneal tuberosity.
    Type of Medium: Online Resource
    ISSN: 1757-7853 , 1757-7861
    URL: Issue
    URL: Article
    DOI: 10.1111/os.v15.10
    DOI: 10.1111/os.13828
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 2483883-4
    detail.hit.zdb_id: 2503162-4
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  • 9
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    PGE and Os Isotopes as Tracers in Polymetallic Massive Sulfide Deposits from the Edmond and Kairei Hydrothermal Fields, Central Indian Ridge
    Wiley ; 2014
    In:  Acta Geologica Sinica - English Edition Vol. 88, No. s2 ( 2014-12), p. 223-224
    Details
    In: Acta Geologica Sinica - English Edition, Wiley, Vol. 88, No. s2 ( 2014-12), p. 223-224
    Type of Medium: Online Resource
    ISSN: 1000-9515 , 1755-6724
    URL: Issue
    URL: Article
    DOI: 10.1111/acgs.2014.88.issue-s2
    DOI: 10.1111/1755-6724.12369_38
    Language: English
    Publisher: Wiley
    Publication Date: 2014
    detail.hit.zdb_id: 1148231-X
    detail.hit.zdb_id: 2420386-5
    SSG: 6,25
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  • 10
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    Multiple Reconstructive Osteotomy Treating Malunited Calcaneal Fractures Without Subtalar Joint Fusion
    Wiley ; 2023
    In:  Orthopaedic Surgery Vol. 15, No. 3 ( 2023-03), p. 810-818
    Details
    In: Orthopaedic Surgery, Wiley, Vol. 15, No. 3 ( 2023-03), p. 810-818
    Abstract: Various surgical techniques have been reported in treating calcaneal malunions over the decades, while the operations on single plane were accompanied by respective limitations. The purpose of this study is to evaluate the efficacy of a novel multiple reconstructive osteotomy for treating malunited calcaneal fractures without subtalar joint fusion. Methods From March 12, 2010, to August 17, 2017, 10 patients (10 feet) with malunited calcaneal fractures were treated with multiple reconstructive osteotomy with subtalar joint‐preserving operations. All patients were treated with a corrective osteotomy, joint realignment, soft tissue balancing, and secondary internal fixation at a mean of 5.6 ± 2.41 months since the initial injury. With the utilization of the multiple reconstructive osteotomy, the posterior facet was restored to preserve the subtalar joint. All patients were evaluated clinically and radiographically at a mean follow‐up of 3.04 ± 1.21 years. Results All patients were subjectively satisfied with the treatment. The average time to union was 12.2 ± 1.11 weeks. The American Orthopedic Foot and Ankle (AOFAS) ankle and hind foot score was 86.3 ± 4.45 ( t  = 27.64, P   〈  0.0001, paired t‐ test), which was significantly higher than the preoperative assessment. Postoperative radiographic assessment revealed great improvement in Böhler's angle (from 25.4° to 86.3°), talocalcaneal height (65.15–72.68 mm) and Calcaneus‐talus angle (from 34.46° to 39.7°). One patient had mild discomfort after a 1‐h brisk walk. One patient was suspected to have early posttraumatic arthritis of the subtalar joint based upon radiographic evidence during the follow‐up, but the patients could walk normally for a long time without pain. Conclusion Multiple reconstructive osteotomy is an effective way to restore the calcaneal morphology and preserve the subtalar joint for selected calcaneal malunion.
    Type of Medium: Online Resource
    ISSN: 1757-7853 , 1757-7861
    URL: Issue
    URL: Article
    DOI: 10.1111/os.v15.3
    DOI: 10.1111/os.13506
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 2483883-4
    detail.hit.zdb_id: 2503162-4
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