bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evaluating the Performance of Reinforced Unpaved Roads Using Plate Load Tests
Authors: Gidday Bisrat Gissila , Gidday Biruk Gissila 
Published: July 2024

AbstractThis study presents the strength of geosynthetic-reinforced unpaved road sections over soft subgrade utilizing plate load Test through a rectangular model box. Geotextile, geogrid, and geonet were used as a reinforcing component. The bearing capacity determined by the plate load test from the laboratory was compared with an analytical solution. The primary objective behind the reinforcement is to decrease the structural section without changing the traffic capacity and to increase the durability of the pavement. The test results showed the implications of a geosynthetic position on the strength of unpaved test sections, through a double reinforcement position always yielded the best improvement. It is seen from the results that there is a substantial increment in the Bearing Capacity of unpaved sections due to single reinforcements attaining a rate of about 34.60% with bi-axial geogrid, about 29.81% with geonet, and about 32.50% with nonwoven geotextile when reinforced within top one-third of subgrade layer.
The Influence of Controlled Vibration Effects on Fluid Flow in Technological and Engineering Processes
Authors: Fedyushkin Alexey 
Published: July 2024

AbstractThis article presents the results of studies demonstrating the influence of nonlinear effects of laminar flow under vibrational harmonic effects on fluid flow and heat transfer. The paper summarizes the results of research on the influence of vibrations in various fluid flow problems. The effect of periodic oscillations on the symmetrization of an asymmetric flow in a diffuser, on Rayleigh-Bernard convection and on the wide of boundary layers in various single crystal growth processes are shown.
Deformation Analysis of Deep Buried Soft Rock Tunnel and Adaptive Control Measure of TBM Construction
Authors: Zhang Maochu , Yan Tianyou , Zhang Guoqiang , Li Jianhe 
Published: July 2024

AbstractThis study focuses on the deformation mechanism of deep buried soft rock tunnel and adaptive prevention and control measures for TBM construction. For the case of large deformation in deep buried soft rock tunnel, the maximum resistance of support measures such as steel arches, anchor rods, and shotcrete is determined based on the support plan. Based on the determination of surrounding rock types, deformation monitoring data, and support resistance, the convergence constraint method is used to theoretically invert the mechanical parameters of deep buried soft rock, and combined with relevant standard parameter values for verification, reasonable mechanical parameters for deep buried soft rock are obtained. Based on the finite element method, open TBM excavation simulation is conducted for tunnel, and the mechanical response of surrounding rock is studied. The reasons for support structure failure are analyzed, and adaptive prevention and control measures for soft rock deformation are studied.
Analysis of the Hydraulic Characteristics of the Debris Flow Disaster Chain in Baozhuping Gully and Analysis of the Conditions for Debris Flow Initiation
Authors: Yue Hai , Wu Dingde , Hou Lifeng , Zhang Mingliang 
Published: July 2024

AbstractTaking the Baozhuping gully landslide-debris flow disaster chain in Ya’an City as an example, through field investigation and on-site measurement, this study analyzed the characteristics of the collapse and breakthrough during the “7.16” debris flow outbreak, and provided the types of dam break and its hydraulic characteristics after the landslide slide. The results show that the instability of the dam body of the pond is mainly due to the damage caused by the overflow of the top, and the maximum flow rate of the dam break reaches 30.12 m3/s, which triggers the initiation of debris flow downstream, providing reference for the prevention and control of similar debris flows.
Research on the Application of Double-Pipe Split-Grouting Anchor in Deep Fill Slope Engineering
Authors: Liang Dianjun , Li Zhao , Sun Xunhai , Yang Haitao , Ma Binbin , Fan Hao 
Published: July 2024

AbstractIn recent years, with the continuous development of China’s construction industry, the site selection of construction projects has become more and more complex, and more and more construction projects have encountered deep and complex filling problems. This paper is based on a project in the north of China, which is a deep and complex filling slope and the support form is pile-anchor support. Considering the risk of deep and complex soil filling on slope stability, in order to ensure the construction quality and safety, the double-pipe split anchor test is studied and analyzed. Through the comparison of engineering test, numerical simulation and actual monitoring data, it is shown that the scheme has a good effect on improving the quality of anchor, and has certain guiding significance for similar projects.
Load Calculation and Strength Analysis of Prefabricated Floating Dock
Authors: Zeng Yu , Guo Jianting , Zheng Kai 
Published: July 2024

AbstractThis paper proposes a multi-module assembly floating dock, which is assembled by a pin-jointed hinge structure between modules. Based on the design wave method, the three-dimensional potential flow theory is used to calculate the loads and analyze the strength of the assembly floating dock, and the configuration is optimized and analyzed. The results show that the longitudinal torque load in the wave load of the floating dock is the largest, and the maximum stress area is the connection between the platform and the column. Based on numerical results, structural strengthening design and analysis were carried out for multiple high-stress areas, which significantly reduced structural stress, with a maximum reduction of 54%, making the structural strength meet the design requirements. The research results of this paper can provide a reference for the design and strength optimization of floating dock configurations in the future.
Urban Development Potential Evaluation of Prefabricated Buildings Based on PCA-TOPSIS Model
Authors: Gan Qili , Li Langhua , Huang Qiming , Chen Wanqing 
Published: July 2024

AbstractIn recent years, with the strong support of the Chinese government, prefabricated buildings have entered a period of rapid development. Prefabricated buildings occupy an important position in the construction industry in China. However, in the process of the implementation of prefabricated buildings, it is found that each region has different economic, technological and social levels, and each city has different development strategic goals and related supporting policies. The development potential of prefabricated buildings is very different, the development process is different, and the potential needs to be tapped. Based on the literature research method, this paper selects 25 evaluation indicators from four aspects of policy, economy, technology and market, adopts the principal component weighted TOPSIS evaluation method to construct a comprehensive evaluation model of the development potential of prefabricated buildings in cities, and makes a comprehensive evaluation of the development potential of prefabricated buildings in cities, so as to help cities understand their own development potential of prefabricated buildings. Develop prefabricated building development strategy to provide reference.
Mechanical Characteristics of Assembled Overhanging Composite Roadbed Structure
Authors: Tang Rui , Li Hao , You Minglong , Li Gongchang , Tan Fei 
Published: July 2024

AbstractIn order to solve the problems of narrow roads, difficult construction, long construction period and high impact on the surrounding environment encountered during the construction of mountainous highways, railroads and other infrastructures, this paper proposes an assembled overhang composite roadbed structure. The mechanical analysis of the assembled overhang is carried out, and the three-dimensional finite element numerical model of the assembled roadbed structure is established, and the force characteristics of the overhang structure are analyzed. The results show that there is stress concentration between the two spans of the road panel, and the deformation of the road panel is mainly concentrated in the overhang side, and the deformation of the side span is larger than that of the middle span. The stress concentration phenomenon appeared on the outer side of the connection end of the middle overhanging and column, and the horizontal displacement of the middle column was larger, and the displacement was about twice that of the edge column. The research results can provide useful guidance for the design and optimization of assembled overhanging roadbeds.
Experimental Study on a Void Imagination Approach for a Full-Scale Concrete-Filled Steel Tube Specimen in Long-Span Suspension Bridge Tower with Electromechanical Impedance
Authors: Hu Wei , Liu Qian , Xu Bin 
Published: July 2024

AbstractDue to complex internal structure details and insufficient quality control methodologies during concrete pouring, defects such as void in large-scale concrete-filled steel tube (CFST) components possibly occur. In this paper, an internal void defects imagination approach using electromechanical impedance (EMI) measurement with surface-fixed Piezoelectric Lead Zirconate Titanate (PZT) sensors is proposed for a full-scale CFST specimen with a diameter of 3.6m that is employed in a tower with a height of 350 m of a long-span suspension bridge. A variety of voids are mimicked by placing empty boxes of various sizes at various locations under the inner horizontal diaphragm of CFST specimen to test the viability of the proposed method. To detect the existence of the voids, numerous PZT sensors are mounted on the outer surface of the specimen and Electromechanical impedance (EMI) measurement of the PZT sensors at selected certain frequency band are made. Based on the analysis on the impedance curves and the root mean square deviation (RMSD) of each EMI measurement, the localization of each artificially mimicked void defect is detected successfully. Moreover, the distribution of all mimicked voids is visualized with an imagination method based on RMSD values of PZT sensors at different locations. The visualization result meets the actual locations of the artificially mimicked void defects inside the CFST specimen.
Safety Inspection and Appraisal Analysis of a “一” Type Building in a Hospital
Authors: Wu Si , Ding Lin 
Published: July 2024

AbstractAccording to the actual situation of the Engineering, the structure safety evaluation is carried out, and the bearing capacity of the main structure is checked according to the corresponding test results and specifications. On this basis, a comprehensive evaluation of the structural safety of a “一” type building in a hospital is carried out, which provides a basis for the subsequent structural transformation and reinforcement, and provides a reference for similar Engineering.
Research on Materials for Concrete (Mortar) 3D Printing Fabricated Components
Authors: Liu Nana , Gan Qili , Tao Qin , Wang Jie 
Published: July 2024

AbstractConcrete (mortar) 3D printing is a new construction process. Due to the lack of sufficient tensile strength and ductility of traditional cement-based printing materials, and the printing process will lead to the stratification of materials, and most 3D printing is contour printing, only after manually filling concrete and steel bars, 3D printed buildings have a certain bearing capacity. This paper discusses the current research progress of concrete (mortar) 3D printing, the requirements of printing materials, as well as the research status and future research direction of bionic materials. Through analysis, combined with the new material UDHCC independently developed by this research team, it is confirmed that it is completely possible to realize layered pouring components with both flexural bearing capacity and ductility. It provides theoretical and technical basis for the development of 3D printing no-bar construction process.
Research on 3D Laser Scanning for Enhancing Production Quality Control of Concrete Prefabricated Beams
Authors: Chen Jianwen , He Lei , Wang Zhangming , Li Jianqiang , Zhang Bin , Cheng Qian , Qu Qianglong 
Published: July 2024

AbstractBased on the Hangzhou-Ningbo Expressway project, with the aim of addressing the drawbacks pertaining to challenging quality control, lengthy production duration, and low cost-effectiveness in the process of manufacturing concrete precast beams, this study employs three-dimensional laser scanning technology as a means of data acquisition in monitoring the quality of concrete precast beam spacing, size, and flatness within precast beam yards. By means of statistical analysis on the collected deviation data, various deviations in key indices of prefabricated components are identified, and the underlying causes for installation discrepancies are summarized. The test results convincingly demonstrate that the utilization of three-dimensional laser scanning technology can significantly enhance both efficiency and accuracy in quality inspections of finalized precast beams. Furthermore, this technique holds tremendous potential for application in quality control measures concerning concrete precast beams, thereby offering valuable technical support towards advancing the development of prefabricated concrete beams.
Research on Video-Based Slope Deformation Monitoring Technology
Authors: Yang Jinhu , Xiao Yong , Wang Jing , Jiao Fuai 
Published: July 2024

AbstractThe deformation and instability of slopes pose significant risks to national assets and the safety of people’s lives. Reasonable and reliable monitoring techniques are crucial for the prevention and management of slope instability. Conventional slope deformation monitoring techniques have drawbacks such as point-based monitoring, difficulty in maintenance, and high investment costs. The rapid development of video image processing technology has greatly driven the transformation of measurement techniques. Through research on equipment selection for image acquisition, supplementary lighting under low visibility conditions, subpixel edge detection techniques, video interference removal, development of monitoring software, and integration of field power supply systems, a high-precision slope displacement monitoring system based on video images has been developed. The system has been tested and verified for monitoring performance in both nighttime dark environments and daytime conditions. Field experiments were conducted at the Pan Gui Road Station slope of the extension project of Chongqing Rail Transit Line 4, and the deformation values and trends obtained by the system were consistent with the high-precision Leica total station monitoring data. The system enables non-contact, long-distance, and real-time online monitoring of slopes within a measurement range of 100 m, with a monitoring accuracy of about 1 mm, and has significant potential for widespread application.
The Modular Protection and Design Method of Traditional Residential Buildings in Bayu Ancient Town
Authors: Li Qiuna , Shi Jingyuan , Zhao Yueyuan 
Published: July 2024

AbstractThis paper analyzes the current problems of the serious damage to the common dwellings and historical key buildings in Bayu ancient town and the insufficient understanding of the complexity of the protection work, established the basic idea of traditional residential building modular protection design, and further proposed the specific modular protection method which is composed of current building element data collation, common residential type renovation design, and special building type key design. The longtan Ancient Town in Chongqing is taken as an example for research and exploration.
Analysis and Evaluation Model Study of the Impact of Prefabricated Buildings on Urban Sustainable Development
Authors: Guo Jinjing , Chen Yajuan , Hu Jing , Zheng Yaqing 
Published: July 2024

AbstractAs a new way of building industry that fits the concept of urban sustainable development, prefabricated buildings have a positive impact on urban sustainable development. The influencing factors and influence mechanism of prefabricated buildings on urban sustainable development is theoretically analyzed. In order to elucidate the contribution of prefabricated buildings to urban sustainable development, evaluation model for quantization and empirical study is also established in the paper.
Quantum computation in fermionic thermal field theories
Authors: Qian Wenyang , Wu Bin 
Published: July 2024

Abstract
Thermal properties of quantum fields at finite temperature are crucial to understanding strongly interacting matter and recent development in quantum computing has provided an alternative and promising avenue of study. In this work, we study thermal field theories involving only fermions using quantum algorithms. We first delve into the presentations of fermion fields via qubits on digital quantum computers alongside the quantum algorithms such as quantum imaginary time evolutions employed to evaluate thermal properties of generic quantum field theories. Specifically, we show numerical results such as the thermal distribution and the energy density of thermal field theories for Majorana fermions in 1+1 dimensions using quantum simulators. In addition to free field theory, we also study the effects of interactions resulting from coupling with a spatially homogeneous Majorana field. In both cases, we show analytically that thermal properties of the system can be described using phase-space distributions, and the quantum simulation results agree with analytical and semiclassical expectations. Our work is an important step to understand thermal fixed points, preparing for quantum simulation of thermalization in real time.
Baryon number violation involving tau leptons
Authors: Heeck Julian , Watkins Dima 
Published: July 2024

Abstract
Baryon number violation is our most sensitive probe of physics beyond the Standard Model, especially through the study of nucleon decays. Angular momentum conservation requires a lepton in the final state of such decays, kinematically restricted to electrons, muons, or neutrinos. We show that operators involving taus, which are at first sight too heavy to play a role in nucleon decays, still lead to clean nucleon decay channels with tau neutrinos. While many of them are already constrained from existing two-body searches such as p → π+ν, other operators induce many-body decays such as $$ p\to {\eta \pi}^{+}{\overline{\nu}}_{\tau } $$
p
→

ηπ
+

ν
¯

τ

and n → K+π−ντ that have never been searched for.
Automated toolpath planning with 3D implementation of a parabolic weld bead deposition model for wire arc additive manufacturing repair
Authors: Qvale Paul , Njaastad Eirik B. 
Published: July 2024

AbstractTo ensure sufficient repair of a metal structure damaged from, e.g., corrosion or wear by wire arc additive manufacturing (WAAM), appropriate toolpath planning and prediction of material deposition for the welding process are required. In the current work, a planner employing combined contour and raster pattern paths based on a sliced surface scan of the damage was developed. To extend existing empirical models for material deposition during welding to the two-dimensional paths used in WAAM, a paraboloid deposition function was used. Realistic deposition rates for uneven substrates were ensured by continuously adjusting the vertex height of the paraboloid in closely timed deposition events along the path. The deposition prediction can be used to assess if additional layers of repair welding are needed to fill a damage. For a repair with a build height of around 13 mm, the damage was sufficiently filled after following the generated toolpath plan, and a minimal amount of voids were observed. Errors in the material deposition prediction were within $$\pm 1$$

±
1

mm in most of the repair. Errors in the predicted deposition were higher in the start/stop regions of weld beads, presumably because the ignition procedure in the welding machine was not accounted for.
Pulmonary Flow Management by Combination Therapy of Hemostatic Clipping and Balloon Angioplasty for Right Ventricular-Pulmonary Artery Shunt in Hypoplastic Left Heart Syndrome
Authors: Shigemitsu Yusuke , Kondo Maiko , Kurita Yoshihiko , Fukushima Yosuke , Kawamoto Yuya , Hirai Kenta , Hara Mayuko , Kanazawa Tomoyuki , Iwasaki Tatsuo , Kasahara Shingo , Kataoka Koichi , Tsukahara Hirokazu , Baba Kenji 
Published: July 2024

AbstractControlling pulmonary blood flow in patients who have undergone Norwood palliation, especially early postoperatively, is challenging due to a change in the balance of systemic and pulmonary vascular resistance. We applied a combination therapy of clipping and balloon angioplasty for right ventricle—pulmonary artery (RV-PA) shunt to control pulmonary blood flow, but the influence of the combination therapy on the PA condition is uncertain. Retrospectively analysis was conducted of all infants with hypoplastic left heart syndrome who had undergone Norwood palliation with RV-PA shunt at Okayama University Hospital from January 2008 to September 2022. A total of 50 consecutive patients underwent Norwood palliation with RV-PA shunt in this study period. Of them, 29 patients underwent RV-PA shunt flow clipping, and the remaining 21 had unclipped RV-PA shunt. Twenty-three patients underwent balloon angioplasty for RV-PA shunt with clips. After balloon angioplasty, oxygen saturation significantly increased from 69 (59–76)% to 80 (72–86)% (p < 0.001), and the narrowest portion of the clipped conduit significantly improved from 2.8 (1.8–3.4) to 3.8 (2.9–4.6) mm (p < 0.001). In cardiac catheterizations prior to Bidirectional cavo-pulmonary shunt (BCPS), there were no significant differences in pulmonary-to-systemic flow ratio (Qp/Qs), ventricular end-diastolic pressure, Nakata index, arterial saturation, mean pulmonary artery pressure and pulmonary vascular resistance index. On the other hand, in Cardiac catheterizations prior to Fontan, Nakata index was larger in the clipped group (p = 0.02). There was no statistically significant difference in the 5-year survival between the two groups (clipped group 96%, unclipped group 74%, log-rank test: p = 0.13). At least, our combination therapy of clipping and balloon angioplasty for RV-PA shunt did not negatively impact PA growth. Although there is a trend toward better but not statistically significant difference in outcomes in the clipped group compared to the non-clipped group, this treatment strategy may play an important role in improving outcomes in hypoplastic left heart syndrome.