Acta of bioengineering and biomechanics最新文献_第4页

New index for evaluating pedaling techniques using the pedaling efficiency index with gradually increasing load. 基于负荷逐渐增大的蹬车效率指标，建立了评价蹬车技术的新指标。

Acta of bioengineering and biomechanics Pub Date : 2025-03-18 Print Date: 2024-12-01 DOI: 10.37190/abb-02546-2024-02

Tomoki Kitawaki, Masahiro Fukuda

{"title":"New index for evaluating pedaling techniques using the pedaling efficiency index with gradually increasing load.","authors":"Tomoki Kitawaki, Masahiro Fukuda","doi":"10.37190/abb-02546-2024-02","DOIUrl":"10.37190/abb-02546-2024-02","url":null,"abstract":"Purpose: Measuring the pedal force vector during bicycle pedaling has recently become easy, and research have been conducted using mechanical efficiency (the ratio of an effective driving force to total pedaling force); however, the relationships between these forces were not considered. This study aimed to show that the relationship between these forces can be linearly regressed under gradually increasing load conditions and propose that the slope parameter can serve as a new index for evaluating pedaling skills. Methods: Twenty-eight participants performed the experiment in which the load was increased every minute until the maximum load was exerted. Using sensors installed on both bicycle cranks, the pedaling force vector was divided into tangential and radial components to determine the total pedaling and effective driving forces per minute. The maximum load force and efficiency index were calculated. Results: Our results showed a strong linear relationship (coefficient of determination: 0.982, 95% CI 0.909-0.996) between the total pedaling and effective driving force. The slope parameters from this regression exhibited significant correlations (-0.560 and -0.674) with the maximum load force and efficiency index during maximum exertion, respectively. These correlations highlight the slope parameter potential for capturing pedaling characteristics. Conclusions: The slope parameter derived from the linear regression between the total pedaling force and effective driving force reflects individual pedaling characteristics. This parameter stands out as a promising new index for evaluating pedaling motion, offering insights into participant-specific pedaling behaviors. Consequently, this novel index could be instrumental in assessing and analyzing pedaling skills.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"26 4","pages":"145-153"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143659881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanical behaviour and structural characterization of human fascia lata. 人类阔筋膜的力学行为和结构特征。

Acta of bioengineering and biomechanics Pub Date : 2025-03-18 Print Date: 2024-12-01 DOI: 10.37190/abb-02532-2024-02

Sylwia Szotek, Joanna Dawidowicz, Krzysztof Maksymowicz

{"title":"Mechanical behaviour and structural characterization of human fascia lata.","authors":"Sylwia Szotek, Joanna Dawidowicz, Krzysztof Maksymowicz","doi":"10.37190/abb-02532-2024-02","DOIUrl":"10.37190/abb-02532-2024-02","url":null,"abstract":"Purpose: The fascia lata is a key structure determining the physiological functioning of knee and thigh muscles. At the same time it assures mechanical protection of the tissues situated beneath. This study aimed to clarify the comprehensive mechanical properties and microscopic structure of human fascia lata to understand its mechanical behaviour better. Methods: The pathologically unchanged fascia lata used in this study were collected post mortem from adult males of different age. The mechanical properties of the samples were determined under the uniaxial tensile test in two directions (longitudinal and transverse to collagen bundles arrangement). The structure observations were performed using a light and scanning electron microscope. Results: The mechanical tests have shown the anisotropic properties of the examined tissue. The values of the particular mechanical parameters were determined. The maximum failure force, stiffness coefficient, tensile strength and Young's modulus values were higher for longitudinal than transversal samples. Before the uniaxial tensile test, the collagen bundles within each layer of examined samples were aligned parallel to each other, showing a regular, wavy architecture (crisped pattern). The elastin fibres within these layers were much less numerous than collagen fibres. The applied mechanical forces disrupted the intact, regular collagen pattern, making the majority of collagen bundles loosely and irregularly oriented. Conclusions: Knowledge of the mechanical and structural properties of the human fascia lata is an important issue in the context of clinical applications, tissue engineering as well as numerical modelling.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"26 4","pages":"99-110"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143659917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparing swimming starts of flat and deep trajectory underwater movements performed by adolescent male swimmers. 青少年男子游泳运动员水下平、深轨迹起跳的比较。

Acta of bioengineering and biomechanics Pub Date : 2025-03-18 Print Date: 2024-12-01 DOI: 10.37190/abb-02500-2024-02

Leszek Nosiadek, Łukasz Wądrzyk, Robert Staszkiewicz

{"title":"Comparing swimming starts of flat and deep trajectory underwater movements performed by adolescent male swimmers.","authors":"Leszek Nosiadek, Łukasz Wądrzyk, Robert Staszkiewicz","doi":"10.37190/abb-02500-2024-02","DOIUrl":"10.37190/abb-02500-2024-02","url":null,"abstract":"Purpose: Biomechanical analyses of the swimming start performed by the best swimmers indicates the occurrence of a few effective start types. This issue has only been described to a small degree among adolescent swimmers. The objective is to determine kinematic differences in various parts of the swimming start to the front crawl among adolescent swimmers performing a start with flat (FT) or deep underwater trajectory (DT). Methods: The study comprised 32 male swimmers aged 16-19 (average World Aquatics score = 556 ± 88 points). The trials were recorded using two cameras (above- and underwater). A kinematic analysis of the time from start to attain 5 m was performed. Results: The maximum submersion depth was 0.94 ± 0.09 m (FT) and 1.21 ± 0.11 m (DT). Between-group differences were observed for FT and DT, respectively, in: attack angle at the submersion (38.37 ± 6.85° and 44.90 ± 6.08°), the distance of maximum submersion depth (5.24 ± 0.36 m and 5.58 ± 0.50 m) and underwater angles of attack during submersion (angle of the shoulders at the of submersion: 29.40 ± 3.90° and 34.30 ± 4.14°, angle of the hips at the submersion: 21.70 ± 4.52° and 26.49 ± 5.05°). Conclusions: It was found that swimmers can successfully use different start variants. The underwater trajectory is primarily influenced by the body position at the moment the fingers contact with the water and during submersion, and not only by the manner of performing the push-off. The authors conclude that the characteristics of the start should not be based on one variable or its selected start phase - the description of the technique should comprise a set of kinematic indices from its different parts.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"26 4","pages":"61-68"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143660296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The influence of core mechanics training on the body coordination of Wushu athletes during aerial rotations. 核心力学训练对武术运动员空中旋转身体协调性的影响。

Acta of bioengineering and biomechanics Pub Date : 2025-03-18 Print Date: 2024-12-01 DOI: 10.37190/abb-02545-2024-02

Jie Li, Qing Su, Wen Shi, Yuan Wang

引用次数: 0

Characterization of far-side occupant chest injuries in oblique side impact considering uncertainty. 考虑不确定性的斜侧碰撞对远侧乘员胸部损伤的表征。

Acta of bioengineering and biomechanics Pub Date : 2025-03-18 Print Date: 2024-12-01 DOI: 10.37190/abb-02491-2024-03

Lidong Zhang, Sen Xiao, Yu Liu, Tiqiang Fan, Jiapeng Li

{"title":"Characterization of far-side occupant chest injuries in oblique side impact considering uncertainty.","authors":"Lidong Zhang, Sen Xiao, Yu Liu, Tiqiang Fan, Jiapeng Li","doi":"10.37190/abb-02491-2024-03","DOIUrl":"10.37190/abb-02491-2024-03","url":null,"abstract":"Purpose: Oblique side impact is a common form of impact in life, and the far-side occupant's chest is highly susceptible to injury in the impact process. This study analyzed the effects of different factors on the chest response of far-side occupants in oblique side impacts. Methods: In this study, a simplified sled model was developed. After that, five factors, namely, impact velocity, impact angle, seat friction coefficient, seatbelt friction coefficient, and seatbelt force-limiting were considered as uncertain variables and randomly sampled. Sixteen sets of impact simulations with different parameters were performed using the sampled results to evaluate the farside occupant chest response. Results: Results showed that the impact velocity was positively correlated with the chest deflection and chest acceleration, with correlation coefficients 0.77 and 0.92, respectively, and the impact angle was negatively correlated with the chest deflection and chest acceleration, with correlation coefficients -0.83 and -0.54, respectively. The seatbelt friction coefficient and force limiting value were positively and negatively correlated with the occupant's chest response, respectively. Conclusions: The results suggested that multiple variables collectively influenced occupant injury and random combinations of different variables may play a critical role in impact outcomes. This study provides a reference for the study of occupant injury in far-side impacts.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"26 4","pages":"69-77"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143660293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Aerodynamic characteristics and trajectory analysis of badminton shuttlecocks. 羽毛球羽毛球的气动特性及运动轨迹分析。

Acta of bioengineering and biomechanics Pub Date : 2025-03-18 Print Date: 2024-12-01 DOI: 10.37190/abb-02508-2024-01

Lin Zhou

{"title":"Aerodynamic characteristics and trajectory analysis of badminton shuttlecocks.","authors":"Lin Zhou","doi":"10.37190/abb-02508-2024-01","DOIUrl":"10.37190/abb-02508-2024-01","url":null,"abstract":"Purpose: This study aimed to investigate the aerodynamic characteristics and trajectory behavior of badminton shuttlecocks, focusing on the effects of design factors such as porosity, flexibility, and feather geometry on flight performance. The main research question was how shuttlecock design influences aerodynamic forces and resulting trajectories. Methods: Wind tunnel tests were conducted on two feather and two synthetic shuttlecocks to measure drag, lift, and pitching forces across speeds of 10-50 m/s and angles of 0-20°. Empirical correlations for drag and lift coefficients were derived via regression analysis. The effects of gaps and rotation were evaluated by modifying shuttlecocks. Trajectories were simulated by numerically integrating the equations of motion using the empirical force correlations and validated against high-speed video of players hitting shuttlecocks. Results: Premium shuttlecocks displayed lower drag and higher lift than budget models. Feather shuttlecocks maintained higher rotation rates at high speeds compared to synthetic ones. Sealing gaps reduced drag by up to 10% for 75% sealed gaps. Stiffening synthetic skirts improved performance closer to feather shuttlecocks. Simulations matched experimental trajectories within 5% deviation for key metrics across different shots and shuttlecock types. Conclusions: Shuttlecock design significantly impacts aerodynamic forces and flight trajectories. Factors such as porosity, skirt flexibility and feather shape play crucial roles in performance. The developed simulation methodology can aid players in optimizing shots and manufacturers in designing better shuttlecocks. This research enhances understanding of shuttlecock aerodynamics and provides a foundation for future equipment innovations in badminton.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"26 4","pages":"29-37"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143660290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A biomechanical modelling study of pedestrian skull and brain injury risk in vehicle collisions affected by head rotational speed. 头部转速对车辆碰撞中行人颅脑损伤风险的生物力学建模研究。

Acta of bioengineering and biomechanics Pub Date : 2025-03-18 Print Date: 2024-12-01 DOI: 10.37190/abb-02523-2024-02

Xiangxian Yi, Yangkun Luo, Wu Zhou, Jin Nie

{"title":"A biomechanical modelling study of pedestrian skull and brain injury risk in vehicle collisions affected by head rotational speed.","authors":"Xiangxian Yi, Yangkun Luo, Wu Zhou, Jin Nie","doi":"10.37190/abb-02523-2024-02","DOIUrl":"10.37190/abb-02523-2024-02","url":null,"abstract":"Purpose: The purpose of the current study is to investigate the influence of head rotational speed on pedestrian skull and brain injury risk while considering the variation of head linear impact speed and contact location. Methods: Pedestrian head-to-vehicle collision simulations are defined by the distributions of pedestrian head-vehicle impact boundary conditions extracted from reconstructions of real-world accidents, where finite element (FE) models of a human body head and vehicle front-end are applied. Results: In general, a higher rotational speed at the instant of contacting with vehicle structures leads to a higher skull and brain injury risk: an increase of 30 rad/s in head rotational speed increases the skull fracture risk on average by 2.1-2.6 times and the AIS2+ (Abbreviated Injury Scale) brain injury risk by 1.7-2.7 times in head-hood impacts; for the contacts on the windscreen, the AIS2+ brain injury risk is below 15%, the effect of head rotational speed could be ignored, though an increase of 30 rad/s in head rotational speed leads to 1.6-2.9 times increase in AIS2+ brain injury risk. Conclusions: Head rotational speed has significant influences on both skull and brain injury risk. The effect of head rotational speed is always adverse for the risk of brain injuries and hood contact induced skull fractures. However, head rotational speed has no apparent effect on the skull injury risk for head-vehicle contacts at the windscreen.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"26 4","pages":"163-173"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143660289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determination of the elongation forces of oesophageal tissue in uniaxial tensile test. 单轴拉伸试验中食管组织拉伸力的测定。

Acta of bioengineering and biomechanics Pub Date : 2025-03-18 Print Date: 2024-12-01 DOI: 10.37190/abb-02534-2024-04

Karol Marcula

{"title":"Determination of the elongation forces of oesophageal tissue in uniaxial tensile test.","authors":"Karol Marcula","doi":"10.37190/abb-02534-2024-04","DOIUrl":"10.37190/abb-02534-2024-04","url":null,"abstract":"Purpose: The aim of this study was to determine the range of optimal tensile forces for the oesophageal tissue and to characterise the biomechanics of the oesophageal tissue. Methods: The subjects of the study were oesophageal fragments of white Pekin ducks with a length of approximately 50 mm. Mechanical uniaxial tensile tests were carried out on fragments of the oesophagus and the effect of long-term tissue loading on the ability to permanently elongate was investigated. All measurements carried out were performed under laboratory conditions imitating the tissue environment. Results: Force-elongation characteristics and stress-strain characteristics were determined from the experimental tests. The mean value of the ultimate tensile force in uniaxial tensile test was 45.32 ± 6.67 N. Mean ultimate tensile strain of 0.41 ± 0.02 and mean ultimate tensile stress of 2.04 ± 0.83 MPa were also determined. Tests carried out on the effect of a constant tensile force showed that the average value of permanent strain observed was 32.17 ± 2.26 %. Conclusions: The conducted research allowed to characterise the biomechanics of white Pekin duck oesophageal tissue. The analyzed range of the elongation force provides satisfactory permanent tissue strain. Within the force range studied, no effect of the loading force value on the strain capacity of the oesophageal tissue was demonstrated.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"26 4","pages":"137-143"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143660299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Acute effect of short-duration static stretching exercises on dynamic balance in U-14 female athletes. 短时间静态拉伸运动对U-14女运动员动态平衡的急性影响。

Acta of bioengineering and biomechanics Pub Date : 2025-01-28 Print Date: 2024-06-01 DOI: 10.37190/abb-02432-2024-02

Samiha Amara, Raja Bouguezzi, Helmi Chaabene, Bessem Mkaouer

{"title":"Acute effect of short-duration static stretching exercises on dynamic balance in U-14 female athletes.","authors":"Samiha Amara, Raja Bouguezzi, Helmi Chaabene, Bessem Mkaouer","doi":"10.37190/abb-02432-2024-02","DOIUrl":"10.37190/abb-02432-2024-02","url":null,"abstract":"Purpose: The acute effects of static stretching (SS) on dynamic balance, a key fitness component that contributes to injury prevention, has been a subject of significant debate. This study aimed to investigate the acute effect of short-duration SS exercises on dynamic balance following different recovery durations in youth female volleyball players. Methods: Thirteen volunteers U-14 female players were included. Eight random assessments were carried-out on separate days. They consisted of 2D-kinematic analysis of frontal and/or sagittal balance of the center of mass (COM) displacement, velocity, and acceleration on wobble board conducted without SS, immediately after and following 2 and 10 minutes of SS. Results: Repeated-measures ANOVA showed a significant difference between conditions in the velocity (p = 0.002 to 0.049; d = 0.844 to 2.200) and the acceleration (p = 0.014 to 0.021; d = 1.532 to 1.657) of the COM in both frontal and sagittal planes sway. Post-hoc analysis revealed decreased COM velocity (p = 0.001 to 0.030; d = 2.501 to 6.750) and acceleration (p = 0.001 to 0.030; d = 2.501 to 6.750) in the frontal plane, regardless of the recovery time. The most prominent decrease in both parameters was observed immediately after SS (p = 0.001 to 0.013; d = 2.907 to 6.750). However, in the sagittal balance, we observed an immediate increase in COM acceleration following SS (p < 0.001; d = 4.223). Conclusion: Short-duration SS leads to improved dynamic balance, particularly on the frontal plane, with the most favorable effect observed immediately after stretching. Practically speaking, short-duration SS appears to be an effective exercise modality for inducing acute enhancements in dynamic balance among youth female volleyball players.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"26 2","pages":"37-44"},"PeriodicalIF":0.0,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143061950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hemodynamic analysis of left ventricular unloading with Impella versus IABP during VA-ECMO. 在VA-ECMO期间，Impella与IABP左心室卸荷的血流动力学分析。

Acta of bioengineering and biomechanics Pub Date : 2025-01-28 Print Date: 2024-06-01 DOI: 10.37190/abb-02431-2024-03

Honglong Yu, Yuehu Wu, Xuefeng Feng, Yuan He, Qilian Xie, Hu Peng

{"title":"Hemodynamic analysis of left ventricular unloading with Impella versus IABP during VA-ECMO.","authors":"Honglong Yu, Yuehu Wu, Xuefeng Feng, Yuan He, Qilian Xie, Hu Peng","doi":"10.37190/abb-02431-2024-03","DOIUrl":"10.37190/abb-02431-2024-03","url":null,"abstract":"Purpose: The utilization of intra-aortic balloon pump (IABP) and Impella has been suggested as means of left ventricular unloading in veno-arterial extracorporeal membrane oxygenation (VA-ECMO) patients. This study aimed to assess the local hemodynamic alterations in VA-ECMO patients through simulation analyses. Methods: In this study, a 0D-3D multiscale model was developed, wherein resistance conditions were employed to define the flow-pressure relationship. An idealized model was employed for the aorta, and simulations were conducted to contrast the hemodynamics supported by two configurations: VA-ECMO combined with IABP, and VA-ECMO combined with Impella. Results: In relation to VA-ECMO alone, the combination treatment had the following differences: (1) overall mean mass flow rate increased significantly when combined with Impella and did not change significantly when combined with IABP. Blood flow pulsatility was the strongest in ECMO + IABP, and blood flow pulsatility was significantly suppressed in ECMO + Impella; (2) for all arterial inlets, HI was decreased with ECMO + Impella and increased with ECMO + IABP; (3) the flow field did not change much with ECMO + IABP, with better blood flow compliance, whereas the flow field was relatively more chaotic and disorganized with ECMO + Impella; (4) the difference between shear stress values in ECMO + IABP and ECMO alone was small, and ECMO + Impella (P6) had the largest shear stress values. Conclusions: Variances in hemodynamic efficacy between VA-ECMO combined with IABP and VA-ECMO combined with Impella may underlie divergent prognoses and complications. The approach to ventricular unloading during ECMO and the degree of support should be meticulously tailored to individual patient conditions, as they represent pivotal factors influencing vascular complications.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"26 2","pages":"25-36"},"PeriodicalIF":0.0,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143061957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0