bluuebunny/crossref_metadata_2025_split huggingface dataset:
A numerical analysis of inclination and rectification of ramp-bridge piers adjacent to surcharge load in soft clay area
Authors: Shen Boheng , Mao Dingtao , Ding Yong , Wang Lei , Li Zhiyong 
Published: June 2023

AbstractThe surrounding surcharge has an adverse impact on the service performance of buildings and bridges, and it can endanger their structural safety, especially in soft soil areas. As one case study, the inclination accident of an expressway ramp bridge and its rectification are investigated in this study. Through the three-dimensional (3D) finite element (FE) analysis of the overall structures composed of the bridge span, the pier, and the pile foundation, the whole process of the inclination by the adjacent dumped earth, partial recovery by the unloading, and the lateral pushing rectification of the bridge structure were simulated. The results show that the surcharge load leads to soil displacement near the bridge pile, and the pile-soil interaction leads to the pile deformation, which further causes the inclination of the pier, and the movement of the bridge span. The severity of the accident can be measured by the inclination of the piers and the opening widths of the bridge expansion joints. Due to the plastic deformation and drainage consolidation of the soft clay foundation under the surcharge load, the inclination of the piles and piers cannot be fully recovered after unloading. In order to capture these processes, the FE simulation was divided into three steps. First, the drainage consolidation of the soil foundation were identified by FE simulation and the field measurement of the recovery of the structure after unloading. Second, the effects of soil properties, the surcharge time and surcharge strength on the bridge inclination and the recovery capacity after unloading are discussed. Finally, the rectification of the bridge by lateral pushing was simulated, and the deformation and stress in the pier and pile were calculated to evaluate the safety of the structures. These analyses provided understanding towards the prevention of the bridge inclination under surcharge load, prediction of the recovery by the unloading, and the methods to reduce the residual deformation to meet the specifications.
Structure guided studies of the interaction between PTP1B and JAK
Authors: Morris Rhiannon , Keating Narelle , Tan Cyrus , Chen Hao , Laktyushin Artem , Saiyed Tamanna , Liau Nicholas P. D. , Nicola Nicos A. , Tiganis Tony , Kershaw Nadia J. , Babon Jeffrey J. 
Published: June 2023

AbstractProtein Tyrosine Phosphatase 1B (PTP1B) is the prototypical protein tyrosine phosphatase and plays an essential role in the regulation of several kinase-driven signalling pathways. PTP1B displays a preference for bisphosphorylated substrates. Here we identify PTP1B as an inhibitor of IL-6 and show that, in vitro, it can dephosphorylate all four members of the JAK family. In order to gain a detailed understanding of the molecular mechanism of JAK dephosphorylation, we undertook a structural and biochemical analysis of the dephosphorylation reaction. We identified a product-trapping PTP1B mutant that allowed visualisation of the tyrosine and phosphate products of the reaction and a substrate-trapping mutant with a vastly decreased off-rate compared to those previously described. The latter mutant was used to determine the structure of bisphosphorylated JAK peptides bound to the enzyme active site. These structures revealed that the downstream phosphotyrosine preferentially engaged the active site, in contrast to the analogous region of IRK. Biochemical analysis confirmed this preference. In this binding mode, the previously identified second aryl binding site remains unoccupied and the non-substrate phosphotyrosine engages Arg47. Mutation of this arginine disrupts the preference for the downstream phosphotyrosine. This study reveals a previously unappreciated plasticity in how PTP1B interacts with different substrates.
Zooplankton grazing is the largest source of uncertainty for marine carbon cycling in CMIP6 models
Authors: Rohr Tyler , Richardson Anthony J. , Lenton Andrew , Chamberlain Matthew A. , Shadwick Elizabeth H. 
Published: June 2023

AbstractThe current generation of Earth system models used by the United Nations to project future climate scenarios (CMIP6) relies heavily on marine biogeochemical models to track the fate of carbon absorbed into the oceans. Here we compare 11 CMIP6 marine biogeochemical models and find the largest source of inter-model uncertainty in their representation of the marine carbon cycle is phytoplankton-specific loss rates to zooplankton grazing. This uncertainty is over three times larger than that of net primary production and driven by large differences in prescribed zooplankton grazing dynamics. We run a controlled sensitivity experiment in a global marine biogeochemical model and find that small changes in prescribed grazing dynamics (roughly 5% of what is used across CMIP6 models) can increase secondary and export production by 5 and 2 PgC yr−1, respectively, even when tuned to identical net primary production, likely biasing predictions of future climate states and food security.
Future ocean conditions induce necrosis, microbial dysbiosis and nutrient cycling imbalance in the reef sponge Stylissa flabelliformis
Authors: Botté Emmanuelle S , Bennett Holly , Engelberts J Pamela , Thomas Torsten , Bell James J , Webster Nicole S , Luter Heidi M 
Published: June 2023

Abstract
Oceans are rapidly warming and acidifying in the context of climate change, threatening sensitive marine biota including coral reef sponges. Ocean warming (OW) and ocean acidification (OA) can impact host health and associated microbiome, but few studies have investigated these effects, which are generally studied in isolation, on a specific component of the holobiont. Here we present a comprehensive view of the consequences of simultaneous OW and OA for the tropical sponge Stylissa flabelliformis. We found no interactive effect on the host health or microbiome. Furthermore, OA (pH 7.6 versus pH 8.0) had no impact, while OW (31.5 °C versus 28.5 °C) caused tissue necrosis, as well as dysbiosis and shifts in microbial functions in healthy tissue of necrotic sponges. Major taxonomic shifts included a complete loss of archaea, reduced proportions of Gammaproteobacteria and elevated relative abundances of Alphaproteobacteria. OW weakened sponge-microbe interactions, with a reduced capacity for nutrient exchange and phagocytosis evasion, indicating lower representations of stable symbionts. The potential for microbially-driven nitrogen and sulphur cycling was reduced, as was amino acid metabolism. Crucially, the dysbiosis annihilated the potential for ammonia detoxification, possibly leading to accumulation of toxic ammonia, nutrient imbalance, and host tissue necrosis. Putative defence against reactive oxygen species was greater at 31.5 °C, perhaps as microorganisms capable of resisting temperature-driven oxidative stress were favoured. We conclude that healthy symbiosis in S. flabelliformis is unlikely to be disrupted by future OA but will be deeply impacted by temperatures predicted for 2100 under a “business-as-usual” carbon emission scenario.
The Effect of Age and Task Complexity on the Microstructure of Child Arabic Narratives
Authors: Mahfoudhi Abdessatar , Abdalla Fauzia , Al-Sulaihim Nailah 
Published: June 2023

Purpose:This study examines the development of narrative microstructure elements of productivity, lexical diversity, and syntactic complexity in the oral story production of preschool- and school-age Kuwaiti Arabic–speaking children. It also explores the effects of story task complexity on the target microstructural features.Method:This study employed a cross-sectional research design and enrolled 96 monolingual speakers of Kuwaiti Arabic. Four groups of children aged 4;0–7;11 (years;months) were randomly recruited from public schools across Kuwait. The groups consisted of 22 four-year-olds (Kindergarten 1), 24 five-year-olds (Kindergarten 2), 25 six-year-olds (Grade 1), and 25 seven-year-olds (Grade 2). Two sets of sequential pictures from the Edmonton Narrative Norms Instrument were used to elicit storytelling from all participants: a one-episode story and a more complex three-episode story.Results:The children's stories were analyzed to determine if there were differences in narrative microstructure as a function of age and task complexity. The data indicated that productivity, lexical diversity, and syntactic structures increased with task complexity. The length of communication units, the average mean length of the three longest utterances, and the amount and variety of words in the children's productions were all significantly larger in the more complex story. Only one syntactic structure showed age as well as task effects.Conclusion:Clinical recommendations include adapting the coding scheme to fit Arabic data, using the more complex narrative alone for microstructure analysis, and calculating only a few measures for productivity and syntactic complexity to save time.
Statisches vs. dynamisches Hand- und Fingerkrafttraining in der
Neurorehabilitation – eine randomisierte kontrollierte
Studie
Authors: Stähle M. , Eichmann B. , Nickels W. , Elsner B. 
Published: June 2023

Zusammenfassung
Problematik Durch akute und chronische neurologische Erkrankungen
entstehen 40% aller Behinderungen 1.
Die Anforderung an die Therapie in der Neurologie ist, die
größtmögliche Selbstständigkeit der Betroffenen
wiederherzustellen und ihre Lebensqualität zu verbessern 1. Studien haben gezeigt, dass ein gezieltes
Armtraining bei Menschen nach Schlaganfall die Griffkraft und Armfunktion
verbessern kann 4
5.
Methodik Es wurde eine randomisierte kontrollierte Studie mit 18 Probanden
durchgeführt. Die Probanden erhielten über einen Zeitraum von
maximal 4 Wochen 10–12 Therapieeinheiten mit statischem oder dynamischem
Handkrafttraining. Jede Therapieeinheit dauerte 30 Minuten.
Ergebnisse Die Hand- und Fingerkraft haben sich in der Kontrollgruppe
signifikant verbessert, der Unterschied zwischen beiden Gruppen ist nicht
signifikant. Der Box-and-Block-Test hat sich in der Interventions- und
Kontrollgruppe signifikant verbessert. Die Verbesserung des Box-and-Block-Tests
zwischen beiden Gruppen ist signifikant unterschiedlich. Die COPM hat sich in
Performanz und Zufriedenheit in beiden Gruppen signifikant verbessert ohne
signifikante Unterschiede zwischen den Gruppen.
Diskussion Dynamisches und statisches Hand- und Fingerkrafttraining
scheint positive Auswirkungen auf alle getesteten Parameter zu haben. Ob die
Verbesserungen statistisch relevant sind und ob eine bessere Wirksamkeit des
statischen Trainings vorliegt, sollte in weiteren Studien genauer
überprüft werden.
Ultra-light axions and the S
8 tension: joint constraints from the cosmic microwave background and galaxy clustering
Authors: Rogers Keir K. , Hložek Renée , Laguë Alex , Ivanov Mikhail M. , Philcox Oliver H.E. , Cabass Giovanni , Akitsu Kazuyuki , Marsh David J.E. 
Published: June 2023

Abstract
We search for ultra-light axions as dark matter (DM) and dark energy particle candidates, for axion masses 10-32 eV ≤ m
a ≤ 10-24 eV, by a joint analysis of cosmic microwave background (CMB) and galaxy clustering data — and consider if axions can resolve the tension in inferred values of the matter clustering parameter S
8. We give legacy constraints from Planck 2018 CMB data, improving 2015 limits on the axion density Ωa
h
2 by up to a factor of three; CMB data from the Atacama Cosmology Telescope and the South Pole Telescope marginally weaken Planck bounds at m
a = 10-25 eV, owing to lower (and theoretically-consistent) gravitational lensing signals. We jointly infer, from Planck CMB and full-shape galaxy power spectrum and bispectrum data from the Baryon Oscillation Spectroscopic Survey (BOSS), that axions are, today, < 10% of the DM for m
a ≤ 10-26 eV and < 1% for 10-30 eV ≤ m
a ≤ 10-28 eV. BOSS data strengthen limits, in particular at higher m
a by probing high-wavenumber modes (k < 0.4h Mpc-1). BOSS alone finds a preference for axions at 2.7σ, for m
a = 10-26 eV, but Planck disfavours this result. Nonetheless, axions in a window 10-28 eV ≤ m
a ≤ 10-25 eV can improve consistency between CMB and galaxy clustering data, e.g., reducing the S
8 discrepancy from 2.7σ to 1.6σ, since these axions suppress structure growth at the 8h
-1 Mpc scales to which S
8 is sensitive. We expect improved constraints with upcoming high-resolution CMB and galaxy lensing and future galaxy clustering data, where we will further assess if axions can restore cosmic concordance.
Analysis of Projectile Impact Resisting Characteristics of Hollow Triangular Matrix Structure
Authors: Wu Y X , Xu X Y , Zhang W F , Xu H 
Published: June 2023

Abstract
The numerical simulation of engineering structural elements and spatial combination form of the polarizing body using common engineering materials is carried out, and the triangular hole matrix space combination structure is proposed. The penetration depth and deflection angle of the projectile under different projectile velocities and incident positions are obtained by numerical simulation of the projectile impacting the composite structure under various working conditions. At the same time, through the comparative study of ordinary solid shell shielding structures, it is found that the higher the projectile velocity, the higher the shell shielding effectiveness of triangular hole matrix space composite structure.
Classification of Earthquake Damage of Buildings in Songyuan Area Based on Image Recognition
Authors: Chen Simin , Gao Tengda , Cheng Xuanhao , Jia Mingming 
Published: June 2023

Abstract
Since the emergence of human beings on the earth, various disasters have been accompanied. Among many natural disasters, the earthquake is undoubtedly one of the most threatening disasters. This project uses Res Net-50 model for deep learning and image recognition of building structural damage. Through the program to assess the local earthquake damage, given the feasible standards to facilitate a unified understanding of the earthquake situation, thereby improving the efficiency of disaster relief. Through experiments, the accuracy of the training set of the two classifications finally reached about 89.3 %, and the prediction accuracy of the test set finally reached about 71.4 %, Through the identification of post-earthquake building damage in Songyuan area, it can be learned that the accuracy of the software identification binary classification task is 73.21 %. Experiments show that taking photos can be used to predict the damage level of buildings in a certain area, and seismic damage identification can provide basis and support for post-disaster rescue and reconstruction and economic loss assessment.
Calculation and Analysis of Soil Deformation Induced by Lubrication Mud Pressure During Pipe Jacking Construction
Authors: Ye Jingliang , Chen Hao , Pan Zhichao , Yu Shoukuan 
Published: June 2023

Abstract
As a key step to decide the pipe jacking construction success or failure, the control of lubrication mud performance and parameters directly affects the magnitude of jacking force and deformation of surrounding soil. In order to establish soil deformation model induced by lubrication mud pressure during pipe jacking construction, based on the mechanism analysis of lubrication mud and surrounding soil, using equivalent model of cavity in the semi-infinite elastomer on internal pressure solves the deformation of soil under the effect of mud pressure, referencing image method and stress function method, which deduces the analytical formula of stress and deformation of surrounding soils caused by mud pressure. At the same time, the pattern of soil deformation is analyzed and obtained, the overlying soil vertical displacement increasing with pipes buried depth increasing and the horizontal displacement of soil on both sides pipes increasing with the depth increasing at first then decreasing.
Simplified Calculation Method of Middle Tower Effect of Multi-tower Suspension Bridge
Authors: Xu Xin , Zhang Yuan , Peng Chengming , Li Yonghui 
Published: June 2023

Abstract
In accordance with the “middle tower effect” design problem of multi-tower suspension bridges, the finite element method is currently used to find the reasonable range of the longitudinal stiffness of the middle tower through trial calculations. This method has disadvantages such as complex modeling and large calculation workload. Based on the principle of stiffness distribution, a simplified analysis method of the mid-tower effect of the multi-tower suspension bridge is proposed with the coordination of unbalanced force at the tower top and tower offset as the convergence target. By this method, the mid-span deflection-span ratio parameter and the anti-slip safety factor of the main cable at the saddle under the most unfavorable vehicle live load can be quickly obtained. Relying on the Oujiang River North Estuary Bridge project, the applicability of the method is verified, and the result has a slight deviation from the finite element solution, and the calculation accuracy meets the requirements. The influence of the longitudinal stiffness of the center tower and the friction coefficient between the main cable saddle slots on the middle tower effect of multi-tower suspension bridge is studied. (1) For an 800 m main span multi-tower suspension bridge, when the longitudinal stiffness of the middle tower is greater than 4 MN.m-1, the structure can basically satisfy the requirements of the vertical rigidity of the specification, and the deflection-span ratio is greater than 1/300; when the longitudinal rigidity of the middle tower is greater than 20 MN.m-1, the structure can meet the design requirements of the deflection-span ratio of 1/400. (2) When the longitudinal tower stiffness of the middle tower is 4 MN.m-1, the maximum tower deflection reaches 0.95 m; when the stiffness of the middle tower is greater than 80 MN.m-1, the maximum tower deflection of the middle tower is less than 0.3 m, but the unbalanced force at the top of the tower is greater than 27000 kN, which is unfavorable for the anti-skid requirements of the main cable at the top of the middle tower. (3) Increasing the friction coefficient of the cable saddle from 0.15 to 0.3 can effectively reduce the limiting effect of the middle tower effect on the value of the longitudinal stiffness of the bridge tower. Finally, through the response surface analysis method, based on the independent variable parameters such as the span of the main span, the number of lanes, the friction coefficient of the saddle groove, etc., the recommended formula for the longitudinal stiffness of the middle tower is given, which provides a quick solution method and check basis for the preliminary design of the middle tower of a multi-tower suspension bridge.
Key Techniques for Construction of East Anchorage of the Lingdingyang Bridge on Shenzhen-Zhongshan Link
Authors: Liao Wenlong , Li Mian 
Published: June 2023

Abstract
The Lingdingyang Bridge is a (580+1666+580m) two-tower three-span sea steel box girder suspension bridge. The east anchorage adopts a figure eight-shaped ground connecting wall foundation. The ground connecting wall has a diameter of 107.1m and a width of 65m. The wall thickness is 1.5m. the maximum depth of the wall is 63m, the embedded medium weathered granite depth is 5m. The overburden thickness is nearly 50m, the bedrock depth above 80Mpa is 10m, and the excavation depth of the foundation pit is 42m. The anchor body is a diamond shaped anisotropic anchor body, with a total volume of 93000 m3. The anchorage foundation adopts “locking steel pipe piles + I-shaped sheet piles + parallel wire ropes” combined island-building cofferdam, and the diameter of the island is 150m. There are 79 groove sections in the ground wall. Three-axis mixing piles are used to reinforce the joints and both sides of the groove wall before grooving. The technique of alternately forming grooves by “rotary drilling + groove milling machine” is adopted. The deep foundation pit is unearthed together with the excavation portal frame and the telescopic boom excavator, and the lining is constructed with the hanging form. After the excavation, the waterproof effect of the ground connecting wall is obvious, and the foundation pit is safe and reliable. The anchor body is constructed with a layer of 2m with a large amount of limestone powder concrete, and a 2m post pouring section is set at the same time. The maximum temperature is 65 °C, and the crack control effect is obvious.
Design, fabrication and experiment of dataset acquisition apparatus for dual imaging plane
Authors: Wu Xueyuan 
Published: June 2023

Abstract
Target tracking plays an important role in monitoring, security, pedestrian recognition and other fields. The imaging system of a single imaging plane is limited by hardware conditions, and sometimes is not competent for increasingly complex image processing tasks. Therefore, it is a natural choice to obtain better tracking effect by multi imaging plane cooperative system. When the target tracking network algorithm is implemented for the dual imaging plane system, the data set acquisition of image is indispensable. According to this requirement, we designed and fabricated an image data acquisition apparatus, which includes a set of optical system, two sets of imaging circuits and structural components. After the apparatus integration is completed, we acquire the image data and implement the target tracking experiment based on correlation filtering method. The experiment shows that the tracking accuracy and tracking success rate of correlation filtering algorithm are significantly improved compared with the method using single imaging plane information after using the dataset constructed by this apparatus.
Research On The Performance Test Method Of Elevator Brake
Authors: Ren Zhaolin 
Published: June 2023

Abstract
The elevator brake is an important part to ensure the safe operation of the elevator, and its performance directly determines the safety of the whole machine. This paper describes a brake performance test scheme and test principle, and makes reliability test through the test device for the elevator brake, recording the suction and release voltage, the response time, the brake surface temperature and the delay time of mechanical parts on both sides after a specific number of brake action. The analysis of the characteristics of brake performance changes with time is helpful to further understand the safety condition of elevator brake, and provides a reference for the related research of brake performance.
The Application of Microtremor Exploration Technology in Thick Loess Area of Lanzhou
Authors: Wang Xudong , Wang Lei 
Published: June 2023

Abstract
For the large thickness loess area in Lanzhou, engineering application research on excavated off-set loess using microtremor exploration technology. In this paper, by detecting the surface wave velocity structure of a single point, comparing the dispersion curve data of a single point with the borehole data, and comparing the surface wave velocity profile data with the engineering geological profile, the judgment basis of soil-rock interface and strong-medium interface is put forward. The stratigraphic structure of the loess area with large thickness is accurately divided; By analysing the relationship between the surface wave value of the borehole and the physical and mechanical indexes of the soil, the relationship curves of surface wave-porosity ratio, surface wave-density and surface wave-collapsibility coefficient are studied, and the fitting curves of each curve are obtained and the correlation is summarized. Through the research of this paper, it has certain guiding significance for the application of microtremor exploration in large thickness loess area.