Article
Engineering, Multidisciplinary
Zhipeng Zhang, Zhijun Zhou, Tao Guo, Tianyu Xu, Linxuan Zhu, Fu Xu, Chaoran Chen, Tong Liu
Summary: This study used the hydraulic compaction method to measure the layered compactness of loess subgrade. Results showed that the layered interface settlement has specific depth and number of blows ranges, with compaction effect becoming less significant beyond a depth of 1.2 meters, requiring the introduction of an improvement depth.
MEASUREMENT SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Civil
Dandan Han, Zhijun Zhou, Jiangtao Lei, Minguo Lin, Haochen Zhan
Summary: This study focuses on the evaluation of compaction quality of deep soil using hydraulic compaction. Dimensional analysis is used to analyze subgrade compactness within the effective reinforcement depth, and a prediction model is obtained. The model is validated through a field test.
GEOMECHANICS AND ENGINEERING
(2022)
Article
Materials Science, Characterization & Testing
Qinglong Zhang, Yanwen Zhu, Chuping Wu, Lan Qiao, Huahai Wu, Ren Liu, Wang Guo
Summary: The compaction quality of highway subgrades is crucial for their stability and durability. However, there is a lack of research on the specific application effects of roller-integrated compaction monitoring technology and measurement values for silty soil. Existing assessment methods based on geostatistical methods have many shortcomings. In this study, a new monitoring method combining RICM technology with a real-time kinematic Beidou positioning system was developed. A novel assessment method based on compaction control value and Green spline interpolation was proposed. The results demonstrated that this method effectively solves the problems of existing methods and achieves rapid and continuous assessment of highway subgrade quality.
JOURNAL OF TESTING AND EVALUATION
(2023)
Article
Multidisciplinary Sciences
Yang Du, Xiongjun He, Chao Wu, Weiwei Wu
Summary: This study introduces a lime-soil compaction pile composite foundation for the transition section between the road and bridge of an expressway in a collapsible loess area in China. The use of lime and multilayer geogrid effectively improves the loess subgrade and addresses the bridge-subgrade transition. The research also provides a prediction model for the differential settlement of the transition section, showing that the combined prediction model has the best prediction effect.
SCIENTIFIC REPORTS
(2022)
Article
Construction & Building Technology
Ashish Pal, Vinay K. Gupta
Summary: A new modal combination rule is proposed in this study to accurately estimate the peak floor accelerations in multistoried structures, ensuring the seismic safety of acceleration-sensitive secondary elements rigidly connected to the primary structure. Numerical studies show that the proposed rule performs well, with the majority of cases having an average absolute error of less than 10% across all floors of the structure.
JOURNAL OF STRUCTURAL ENGINEERING
(2021)
Article
Nuclear Science & Technology
Yunzhi Tan, Xun Xu, Huajun Ming, De'an Sun
Summary: In this study, sensitivity analysis of thermal and hydraulic parameters in a high-level radioactive waste disposal repository was performed using COMSOL Multiphysics. The study concluded that thermal conductivity and hydraulic conductivity are high sensitivity parameters, while specific heat capacity, water density, and water compressibility are low sensitivity parameters. The proposed double-layer buffer barrier is advantageous for improving repository safety.
ANNALS OF NUCLEAR ENERGY
(2022)
Article
Environmental Sciences
Han Li, Min Li, Changhong Miao, Bingcheng Si, Yanwei Lu
Summary: Accurate estimation of groundwater recharge is essential for assessing its spatial variation at different scales. In this study, field variation in groundwater recharge was evaluated using multiple tracers in the deep vadose zone on the Chinese Loess Plateau. The results showed no significant differences in recharge rates among the sites, and the recharge estimates by different tracers' methods did not differ significantly. However, the chloride mass balance method indicated higher variations in recharge rates compared to the peak depth method. Considering the contribution of immobile water, the peak depth method overestimated groundwater recharge. This study provides valuable insights for accurate estimation of groundwater recharge and its variation in the deep vadose zone.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Geological
Nan Li, Liulin Fang, Weichen Sun, Xin Zhang, Dong Chen
Summary: In this study, microseismic monitoring technology was used to monitor and analyze the cracks caused by borehole hydraulic fracturing in coal seam, establishing a comprehensive event detection and arrival time picking program suitable for weak microseismic signals. The results demonstrated a clear correlation between microseismic activities and hydraulic fracturing operations, showing the fracturing effect within a certain influence range of hydraulic fracturing.
ROCK MECHANICS AND ROCK ENGINEERING
(2021)
Article
Engineering, Multidisciplinary
He Zhang, Marius Bittner, Michael Beer
Summary: To meet the requirements of performance-based design methods for a large number of earthquake signals, it is necessary to generate artificial seismic ground motion that resembles natural earthquakes.
AIN SHAMS ENGINEERING JOURNAL
(2022)
Article
Engineering, Civil
Yangping Yao, Erbo Song
Summary: The key issue in intelligent compaction is how to establish the relationship between acceleration and dry density for real-time evaluation of compaction quality. The response of acceleration involves two different physical mechanisms, kinematics and soil constitutive law. The current approach of directly correlating dry density with acceleration lacks the ability to distinguish the role played by these mechanisms and may lead to invalid prediction in some cases due to empirical formulas based on limited field data.
TRANSPORTATION GEOTECHNICS
(2023)
Article
Engineering, Civil
Hong -Hu Zhu, Bing Wu, Ding-Feng Cao, Biao Li, Zhi Wen, Xi-Feng Liu, Bin Shi
Summary: This study conducted field monitoring and assessment on seasonally frozen loess in the Loess Plateau, China using a quasi-distributed opto-electronic sensing system. The study successfully captured the spatiotemporal variations in multivariables of seasonally frozen soil, and revealed the importance of obtaining in-situ soil-freezing characteristic curves under natural boundary conditions. The study also highlighted the role of soil matric suction, considering the presence of ice, as the primary driving force of water migration during freezing-thawing processes.
JOURNAL OF HYDROLOGY
(2023)
Article
Computer Science, Interdisciplinary Applications
Qingdong Zeng, Long Bo, Wenzheng Liu, Zhaoqin Huang, Jun Yao
Summary: Fracture penetration or deflection can occur when the hydraulic fracture approaches a weak interface in a multilayered formation, but the intrinsic mechanism of fracture propagation pattern is not yet clear. A model was developed using the phase field method to study hydraulic fracture propagation in multilayered formations. The interface was represented by a thin weak layer, and fluid flow in the fractured media was modeled using the indicator function of the phase field. The simulation results showed that the evolution of injection pressure is more complex when the fracture deflects than when it penetrates the interface. Decreasing the modulus ratio of the interface to layers promotes fracture deflection to the interface, while increasing the stress ratio contributes to fracture penetration of the interface. The stacking mode of layers significantly affects the fracture propagation morphology.
COMPUTERS AND GEOTECHNICS
(2023)
Article
Geosciences, Multidisciplinary
Vladimir Shapovalov, Andrey Vasilchenko, Victor Yavna, Andrei Kochur
Summary: This paper proposes a method for continuous determination of structural layer properties during construction, using GPR method calibrated by direct measurements. The developed method and computer code were tested and validated through field measurements and direct measurements.
JOURNAL OF APPLIED GEOPHYSICS
(2022)
Article
Environmental Sciences
Wenhai Shi, Miaomiao Wang, Donghao Li, Xianwei Li, Mengying Sun
Summary: In this study, a modified peak discharge formula based on the CREAMS model was developed by introducing rainfall intensity and soil moisture factors. The proposed method was tested and applied to multiple storm events, showing high accuracy and outperforming the original and modified CREAMS methods.
INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH
(2023)
Article
Environmental Sciences
Wenwu Chen, Quanquan Jia, Peng Liu, Yanmei Tong
Summary: Loess is widely distributed and its unsaturated hydraulic conductivity is related to various engineering issues. Through filter paper test and soil column seepage test, it is found that the unsaturated hydraulic conductivity of loess increases with volumetric water content and gradually becomes uniform with seepage time. Changes in microstructure during seepage process affect collapsible settlement and pore structure, leading to reduced hydraulic conductivity. VG-M model underestimates unsaturated hydraulic conductivity at low water content, while CCG model shows more consistent results due to more segments of SWCC.
ENVIRONMENTAL EARTH SCIENCES
(2021)
Article
Thermodynamics
Zhijun Zhou, Qi Zhang, Liping Chen
Summary: This study focuses on determining intrinsic kinetic parameters and interpreting and simulating the rate profile of coal char. It analyzes the reactivity of coal char at different temperatures, discusses the weight loss process in non-isothermal conversion, and studies the effects of kinetic analysis methods. It also examines the rate profiles of isothermal conversion and the influence of particle temperature. Finally, an intrinsic reaction model is developed to reproduce the rate profile of isothermal conversion accurately.
COMBUSTION SCIENCE AND TECHNOLOGY
(2023)
Article
Environmental Sciences
Huan Luo, Jiayi Li, Bo Song, Bing Zhang, Yixi Li, Zhijun Zhou, Xiuli Chang
Summary: This study explored the toxicity of lithium, lead, and manganese on neural stem cell proliferation, as well as their combined effects. The results showed that the combination of lead and manganese had a synergistic toxicity effect in both models. In the dose-additivity method, mixtures with a high ratio of lithium exhibited synergistic effects, while mixtures with a lower or equal lithium ratio showed antagonistic effects. Additionally, the interactions of lithium and manganese mixtures varied across different endpoints.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Cell Biology
Bo Song, Yuwei Zhang, Guiya Xiong, Huan Luo, Bing Zhang, Yixi Li, Zhibin Wang, Zhijun Zhou, Xiuli Chang
Summary: Cadmium (Cd) is an environmental pollutant that has adverse effects on neuronal maturation. This study used single-cell RNA sequencing to uncover the molecular mechanisms of Cd on neuronal lineage cells. The results showed that Cd alters the trajectory of neuronal maturation, induces differential transcriptome expression, and affects oxidative damage and cell cycle phases. In addition, Cd downregulates the autocrine and paracrine signals of Wnt5a. Activation of Wnt5a effectively rescues neuronal development and promotes maturation.
CELL BIOLOGY AND TOXICOLOGY
(2023)
Article
Environmental Sciences
Boya Zhang, Zheng Wang, Jiming Zhang, Yiming Dai, Chao Feng, Yuanjie Lin, Lei Zhang, Jianqiu Guo, Xiaojuan Qi, Xiuli Chang, Dasheng Lu, Chunhua Wu, Zhijun Zhou
Summary: This study aimed to evaluate the associations between prenatal perfluoroalkyl substances (PFAS) exposure and neuro-development in toddlers from 1 to 3 years of age. The results showed negative associations between prenatal PFAS concentrations and neurodevelopment measurements at specific ages. In boys, PFOA exposure was negatively associated with DQ z-score, while increased PFBS and PFHpA exposure were associated with elevated odds for the low-score trajectory group.
Article
Environmental Sciences
Jiayun Ding, Yiming Dai, Jiming Zhang, Zheng Wang, Lei Zhang, Sinan Xu, Ruonan Tan, Jianqiu Guo, Xiaojuan Qi, Xiuli Chang, Chunhua Wu, Zhijun Zhou
Summary: This study found significant associations between in utero PFAS levels and adipocytokine concentrations, suggesting that exposure to a mixture of PFAS during pregnancy may lead to decreased fetal leptin levels but increased adiponectin levels, with potential sex-specific effects.
ENVIRONMENTAL RESEARCH
(2023)
Article
Energy & Fuels
Zhuoyou Gao, Zhijun Zhou, Mengying Wang, Ningzhao Shang, Wei Gao, Xiang Cheng, Shutao Gao, Yongjun Gao, Chun Wang
Summary: This study presents an efficient method to fabricate highly dispersed Pd-PTA/ZrO2 catalysts and demonstrates their superior catalytic performance for the hydrodeoxygenation of lignin-derivatives under mild conditions.
Article
Engineering, Biomedical
Guangwei Mao, Zhijun Zhou, Hao Su, Yaozhong Chen, Jianjun Zhang, Chiyuan Zhang, Zhigong Wang, Xiaoying Lu
Summary: This paper proposes an ESCS system for animal experimental study, which provides a fully implantable and programmable stimulating system for complete SCI rat model, along with a wireless charging power solution. The system consists of an implantable pulse generator (IPG), a stimulating electrode, an external charging module, and an Android application (APP) via a smartphone. The results of the animal experiment show that the stimulating system can work stably in SCI rats, effectively activating the lower limb muscles and providing an effective tool for studying the ESCS application in motor function recovery.
IEEE TRANSACTIONS ON NEURAL SYSTEMS AND REHABILITATION ENGINEERING
(2023)
Article
Agriculture, Multidisciplinary
Jie Li, Yushi Yang, Zhijun Zhou, Shuofeng Li, Lin Hao, Weihua Liu, Zhi Wang, Qiuhua Wu, Chun Wang
Summary: A novel fluorine-functionalized triazine-based porous organic polymer (F-POP) was developed for the adsorption of aflatoxins. The F-POP demonstrated superior adsorption ability due to multiple interaction mechanisms, including hydrogen bond, F-O interaction, pi-pi interaction, F-pi interaction, and hydrophobic interaction. Furthermore, magnetic F-POP was prepared and used as a magnetic sorbent for the extraction of trace aflatoxins in peanut and rice samples.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Chemistry, Analytical
Zixuan Cai, Zhijun Zhou, Bin Zhao, Sicheng Ma, Lin Hao, Weihua Liu, Qianqian Wang, Zhi Wang, Qiuhua Wu, Chun Wang
Summary: In this study, novel magnetic hypercrosslinked polymers were successfully fabricated and applied for the enrichment of chlorophenols in environmental water, peach beverage, and honey samples. The method showed good linearity, low detection limits, and high recoveries, making it a promising alternative for the detection of chlorophenols in complex matrix samples.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Applied
Mingming Xu, Zhijun Zhou, Lin Hao, Zhi Li, Jie Li, Qianqian Wang, Weihua Liu, Chun Wang, Zhi Wang, Qiuhua Wu
Summary: Three novel hyper-crosslinked polymers with large specific surface area and excellent chemical stability were fabricated using heterocyclic phenyl-imidazole as monomer. These polymers were used as solid phase extraction adsorbent for sensitive determination of aflatoxins in rice samples. The established method provided wide linear range, low detection limit and satisfactory recovery, and the adsorption mechanism was explored. This work provides a powerful tool for simultaneous determination of aflatoxins in food grains with great application potential in aflatoxin monitoring.
Article
Engineering, Electrical & Electronic
Zhijun Zhou, Keping Wang, Longbin Zhu, Rui Yang, Jihong Li, Wenjie Wang, Yuhao Xu, Zhigong Wang
Summary: This brief introduces a differential difference amplifier (DDA) with a pseudo-differential (PD) common-mode feedback (CMFB) for neural signal recording. The DDA includes two input transconductors, one connected to the target neural signal for high input impedance, and another employing a self-stabilized topology for stability and cutoff frequency determination. The use of PD terminal in CMFB increases the common mode rejection ratio (CMRR) by a factor of differential-mode gain without affecting voltage headroom and dynamic range. This PD CMFB is suitable for multi-channel neural signal acquisition, with higher CMRR for more channels. The proposed DDA, designed in a 0.18-mu m CMOS technology, achieves high input impedance, high CMRR, and low power consumption.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
(2023)
Article
Evolutionary Biology
Qidi Zhu, Zhijun Zhou, Qi Guo, Yanhao Duan, Haijian Wang, Fuming Shi
Summary: This study provides the first phylogenetic and biogeographical analyses of Diestramimini, showing its sister-group relationship with Diestramima + Tamdaotettix and Arboramima + Gigantettix. A new genus, Bidiestramima, is established and a new species, Bidiestramima hekouensis, is described. The diversification of Diestramimini is attributed to dispersal and vicariance events influenced by the uplift of the Himalaya-Tibetan Plateau, the formation of the monsoon, and climate fluctuations.
Article
Microbiology
Qing-mei Li, Dai Zhang, Ji-zong Zhang, Zhi-jun Zhou, Yang Pan, Zhi-hui Yang, Jie-hua Zhu, Yu-hua Liu, Li-feng Zhang
Summary: Continuous cropping of the same crop leads to soil degradation and a decline in crop production, but these impacts could be mitigated through rotation cropping. This study compared the effects of potato continuous cropping and rotation cropping (potato-oat and potato-forage maize) on soil ecosystem multifunctionality (EMF). The results showed that rotation cropping enhanced soil EMF, microbial diversity, and potato yield.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Immunology
Weijun Liu, Huicheng Li, Yun Jin, Lifang Cheng, Luhuai Shi, Yangmin Gao, Zhijun Zhou, Suying Feng, Hua Qian, Takashi Hashimoto, Xiaoguang Li
Summary: Mucous membrane pemphigoid (MMP) is a challenging autoimmune bullous disease that affects various mucosae and sometimes presents with skin lesions. The pathogenesis of MMP remains unclear, despite the identification of multiple autoantigens.
FRONTIERS IN IMMUNOLOGY
(2023)
Article
Engineering, Chemical
Yuzhe Cao, Zhijun Zhou, Tongyu Zhang, Zejuan Ni, Bo Ge, Hao Zhang, Guina Ren, Xin Shao, Zhaozhu Zhang
Summary: A solar-driven photothermal evaporation device with salt-resistance and the ability to remove dye and oil slicks has been developed to overcome the limitations of existing devices. The device uses a superhydrophobic part to eliminate dye and oil slicks, protecting both the device and the environment. It achieves a purification efficiency of over 99.9% for heavy metal ions and Rh B solution. The device also demonstrates high evaporation rates under one sun illumination for different water sources, indicating its potential for desalination and wastewater purification.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
