Article
Geosciences, Multidisciplinary
Shengfu Wang, Liang Lv, Kaixi Xue, Dongjie Zhang, Mingdong Li, Dongwei Li, Chang Yuan
Summary: This study investigated the pore structures of mucky clay and silty clay before and after freeze-thaw and compression using Mercury Intrusion Porosimetry (MIP). It was found that freeze-thaw and compression led to changes in pore volume and pore surface area, which were quantitatively estimated using capacity dimension.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Ke Ou, Changsong Wang, Ri-hong Cao, Hang Lin, Lei Fang
Summary: Uniaxial compression tests and MIP analysis were conducted on red sandstone specimens to reveal the microscopic pore characteristics and strength weakening mechanism under cyclic freeze-thaw treatment. The results showed an increase in porosity and expansion of the pore structure with freeze-thaw cycles. The pore fractal dimension also increased gradually with the increase in freeze-thaw cycles.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Construction & Building Technology
Wenhu Fan, Ping Yang, Shengfu Wang, Xi Zuo, Yingying Chen
Summary: The study examined the effects of freeze-thaw (F-T) on the pore structure of soil using X-ray computed tomography (CT) and mercury intrusion porosimetry (MIP). The results showed that F-T significantly altered the pore properties of the soil, particularly the shape and orientation of macropores and micropores. The study also found that the effects of F-T were more pronounced in the open system compared to the closed system.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Construction & Building Technology
Shujun Li, Gaofeng Chen, Zhenhai Xu, Xu Luo, Jianming Gao
Summary: This study investigates the particle size effect of recycled clay brick powder (RCBP) on the pore structure of blended cement pastes. The results show that reducing the particle size of RCBP effectively improves the pore structure.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Engineering, Environmental
Yan Han, Qing Wang, Jing Liu, Weitong Xia, Jiaqi Wang, Jiejie Shen, Yating Chen
Summary: The relationship between the permeability of dispersive soil and its pore-scale characteristics was investigated in this study. The results showed that salt content and freeze-thaw cycles have different effects on pore structure and permeability. Pore diameter and pore volume were found to be the major factors affecting permeability.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2022)
Article
Agricultural Engineering
Jing Qian, Jingjing Gao, Zhengbin He, Songlin Yi
Summary: The study evaluated the density and pore structure characteristics of self-shrinking Ailanthus altissima substrate obtained by ultrasonic-assisted treatment, revealing changes in the wood density and pore structure after treatment. Samples treated with 1% and 4% NaOH showed higher density but lower porosity compared to water-immersion samples, with an increase in the relative content of macropores.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Energy & Fuels
Fudong Xin, Hao Xu, Dazhen Tang, Ding Liu, Can Cao
Summary: The low coalification degree and unique properties of lignite pose challenges in physical property testing. Freeze-drying can effectively prevent the collapse of pore structure, improving test accuracy.
INTERNATIONAL JOURNAL OF COAL GEOLOGY
(2021)
Article
Engineering, Chemical
Neil Taylor, Wanli Justin Ma, Adam Kristopeit, Sheng-ching Wang, Andrew L. Zydney
Summary: Sterile filtration is commonly used in processing recombinant proteins to remove microorganisms, but applying this technology to larger biotherapeutics like Live-Attenuated Vaccines (LAV) poses challenges. This study evaluated the fouling behavior of eight different sterile filters using fluorescently-labeled latex spheres as model particles, finding a correlation between particle diameter, pore size, and transmission rates. The results provide insights into the selection of appropriate sterile filters for processing vaccines and viruses larger than 100 nm.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Environmental
Xianwei Zhang, Gang Wang, Xinyu Liu, Yiqing Xu, Lingwei Kong
Summary: This study investigates the pore characteristics of natural marine clay and its relationship with macroscopic performance using various techniques. The results show that the clay has a randomly oriented open-flocculated structure and contains ink-bottle pores. This study enhances the understanding of the pore characteristics of natural structured clays.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2022)
Article
Chemistry, Physical
Thomas Buchner, Thomas Kiefer, Luis Zelaya-Lainez, Wolfgang Gaggl, Thomas Konegger, Josef Fuessl
Summary: The development and improvement of brick materials still relies on empirical knowledge and extensive testing series. Detailed knowledge of the microstructure of clay bricks is essential for physically based optimization of their thermal and mechanical properties. The combination of micro-computed tomography and scanning electron microscopy allows for precise pore size distributions and insights into the 3D pore structure of brick materials, leading to a better understanding and potential optimization of these commonly used materials.
APPLIED CLAY SCIENCE
(2021)
Article
Energy & Fuels
Fengjuan Lan, Yong Qin, Ming Li, Yugan Wang, Yuhang Liu
Summary: The role of the material that generates hydrocarbons in coalbed seams and the pore structure in wet gas and dry gas areas are examined. The different pore structures affect the distribution of wet gases, with wet gas areas having a greater total specific surface area and pore volume in micropores.
Article
Engineering, Geological
Jin-Wen Yang, Yu-Jun Cui, Nadia Mokni, Emmanuel Ormea
Summary: The pore size distribution of MX80 bentonite pellets was determined under various suctions using mercury intrusion porosimetry (MIP) and micro-computed tomography (mu CT). The study found that the results of MIP and mu CT overlapped at suctions greater than or equal to 57 MPa, indicating their reliability. However, at lower suctions, the two techniques showed differences in pore size distribution.
Article
Soil Science
Jocenei A. T. de Oliveira, Fabio A. M. Cassaro, Luiz F. Pires
Summary: This study used X-ray micro-tomography images and a computational algorithm based on mercury intrusion porosimetry to evaluate the impact of different agricultural management systems (CT, MT, NT) on soil structure. The results showed significant changes in pore size distribution under CT and MT, with CT and NT being the main drivers of changes in soil porosity. The computational algorithm proved valuable for quantifying pore size distribution and modifications induced by different management systems.
SOIL & TILLAGE RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Yury Villagran-Zaccardi, Natalia Alderete, Philip van den Heede, Nele De Belie
Summary: Eco-friendly concrete mixtures efficiently use constituents for durable structures; ternary mixes have a good balance of environmental impact, cost, and performance; pore structure analysis is valuable for predicting durability, with no significant effects of GGBFS and limestone powder observed.
APPLIED SCIENCES-BASEL
(2021)
Article
Environmental Sciences
Zhiqing Li, Zhiyu Qi, Shengwen Qi, Linxin Zhang, Xiaokun Hou
Summary: The Loess Plateau is a vital area for land creation projects, with important implications for city development and infrastructure safety. Different states of loess (intact, compacted, remolded) exhibit differences in microstructural characteristics, with remolded loess showing lower compressibility and specific surface area. Compacted loess at higher densities display specific particle structure changes under high-energy impact load. The threshold value of dry density at 1710 kg/m(3) + 10 kg/m(3) defines the boundaries and micro-macro relationships among the different states of loess.
ENVIRONMENTAL EARTH SCIENCES
(2021)
Article
Chemistry, Multidisciplinary
Ade Kismarahardja, Zhanxin Wang, Dongwei Li, Lihua Wang, Libo Fu, Yujie Chen, Zhanxi Fan, Ye Chen, Xiaodong Han, Hua Zhang, Xiaozhou Liao
Summary: The deformation mechanism of gold nanoribbons with unconventional hexagonal structures is investigated using atomic-resolution in situ tensile-straining transmission electron microscopy. The results reveal that plastic deformation involves three stages and includes both full and partial dislocation activities.
Article
Chemistry, Multidisciplinary
Junjie Zhou, Runhao Zhang, Ran Xu, Yong Li, Wei Tian, Meng Gao, Meng Wang, Dongwei Li, Xiu Liang, Lei Xie, Kang Liang, Pu Chen, Biao Kong
Summary: Transient devices are an emerging type of electronics characterized by the dissolution or disintegration of their constituent materials after completing their missions. Research on transient devices is still in its infancy, with a relatively slow development in transient energy devices. In this study, a biodegradable zinc ion battery with a carefully designed cellulose aerogel-gelatin solid electrolyte was developed, demonstrating excellent electrochemical performance and controlled degradation.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Physics, Multidisciplinary
Saba Zafar, Dong-Wei Li, Acner Camino, Jun-Wei Chang, Zuo-Qiang Hao
Summary: High power supercontinuum is generated by focusing 800 nm and 400 nm femtosecond laser pulses in fused silica. The spectral energy density between the two fundamental laser wavelengths is significantly increased by optimizing the phase matching angle, overcoming the disadvantage of lower power in ranges far from the fundamental wavelength.
Article
Agronomy
Dongwei Li, Yuhui Yang, Yulong Zhao, Guangli Tian, Xinguo Zhou, Husen Qiu, Mingsi Li
Summary: Exploring the impact of subsurface drainage on microbial community structures in saline-alkali soils is important for maintaining the sustainability of saline-alkali fields. This study found that subsurface drainage treatments significantly reduced soil salt, but had no effect on microbial richness and diversity. The depth and spacing of drainage had significant effects on bacterial and fungal composition structures, with soil microbial community assembly mainly driven by stochastic processes.
ARCHIVES OF AGRONOMY AND SOIL SCIENCE
(2023)
Article
Polymer Science
Hongwei Cui, Qian Jing, Dongwei Li, Tingting Zhuang, Yixing Gao, Xianghai Ran
Summary: Rubber damping materials are widely used in modern industrial systems, but their temperature range of damping is limited. There is limited research on the damping performance of rubber under high temperature conditions. This study prepared boron-terminated polysiloxane (PBS) and modified silicone rubber with it, achieving excellent damping performance under high temperature conditions.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Letter
Materials Science, Multidisciplinary
Hong-Yu Gong, Xiu Liang, Guan-Liang Sun, Dong-Wei Li, Xiang-Jun Zheng, Huan Shi, Kai Zeng, Guan-Chen Xu, Yong Li, Rui-Zhi Yang, Chang-Zhou Yuan
Article
Chemistry, Physical
Lei Zhai, Weiwei Zhang, Hongyu Gong, Yong Li, Meng Gao, Xiaoyu Zhang, Dongwei Li, Yanli Zhou, Caifu Dong, Wenbao Liu, Fuyi Jiang, Jianchao Sun
Summary: The quasi-solid electrolyte based on Poly(vinylidene fluoride-co-hexafluoropropylene) shows high ionic conductivity and lithium-ion transfer number through the synergistic effect with the NASICON-type lithium-ion conductor Li1.3Al0.3Ti1.7(PO4)3. This quasi-solid polymer electrolyte exhibits high conductivity and stable cycling performance at room temperature, and can be paired with different cathode materials for good electrochemical performance. In addition, the assembled pouch cell has good flexibility, making it suitable for various applications.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Physical
Dongwei Li, Siyu Yu, Haojie Geng, Wei Zhou, Dandan Mu, Shetian Liu
Summary: Photocatalytic degradation of nitrobenzene (NB) using monoclinic WO3 powders and films with different exposing ratios of (002) facets was investigated. The research found that the exposing ratio of (002) facets played a crucial role in improving the degradation efficiency.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Jing Zhang, Zhiyan Zhao, Zhiqiang Zhang, Longsuo Guo, Lijie Xu, Peipei Sun, Meng Wang, Meng Gao, Yong Li, Dongwei Li, Rabah Boukherroub
Summary: This study presents a novel strategy for the construction of flexible fiber-shaped supercapacitors (FSSCs) using boron-doped diamond (BDD) film grown on a flexible tantalum (Ta) fiber substrate. The BDD fiber film exhibits significantly higher specific capacitance compared to planar BDD electrodes. The assembled symmetric supercapacitor device demonstrates desirable stability with high capacitance retention and satisfactory bendability under various bending deformations.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Chengpeng Yang, Libo Fu, Yizhong Guo, Yan Ma, Dongwei Li, Zhanxin Wang, Ze Zhang, Lihua Wang, Xiaodong Han
Summary: Understanding the deformation behavior of crack tips in metals is crucial for improving fracture toughness. This study observed the atomic-scale deformation behavior of crack tips in AuAg alloy nanocrystals and revealed the differences in deformation mechanisms between regions at different distances from the crack tip.
MATERIALS CHARACTERIZATION
(2022)
Article
Optics
Longfei Ji, Wei Liang, Deming Li, Junwei Chang, Dongwei Li, Lanzhi Zhang, Tingting Xi, Zuoqiang Hao
Summary: This paper investigates the influence of pinhole diameter on the determination of the filamentation critical power and finds that the obtained critical power tends to a reasonable value as the decrease of the pinhole diameter.
Article
Chemistry, Physical
Haojie Geng, Haobo Zhao, Siyu Yu, Dongwei Li, Hong Lei, Yuting Zhang
Summary: This paper investigates the catalytic oxidation of methane to CO using a novel core-shell Pt-Pd catalyst. Various characterization techniques were used to study the particle structure and reaction intermediates, and key parameters were calculated. The core-shell catalyst showed excellent catalytic performance in methane conversion and CO selectivity.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Chemical
Wenhui Wei, Yuanyuan Tao, Tianxue Feng, Yitian Wu, Linjie Li, Jie Pang, Dongwei Li, Guanchen Xu, Xiu Liang, Meng Gao, Xingshuang Zhang
Summary: This study developed a multi-functional air filtration material with high efficiency and high temperature resistance using electrospinning and impregnation treatment. The material exhibited excellent PM0.3 filtration efficiency and low pressure drop, as well as outstanding CO2 adsorption performance. Furthermore, a Janus double-layer composite nanofibrous membrane demonstrated unidirectional water permeability and long-term filtration stability.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Dongwei Li, Ling Luo, Lin Guo, Chuman Wu, Ran Zhang, Yuling Peng, Menghua Wu, Junqi Kuang, Yan Li, Yudan Zhang, Jun Xie, Wenxiu Xie, Rui Mao, Gang Ma, Xiuling Fu, Jiekai Chen, Andrew P. Hutchins, Duanqing Pei
Summary: The study finds that c-Jun functions as a one-way valve in embryonic stem cells, preserving the primed state and preventing reversion to the naive state. It stabilizes the chromatin structure and inhibits the reverse transition. Loss or impairment of c-Jun accelerates the activation of naive-specific enhancers and enhances the efficiency of cell fate conversion.
CELL AND BIOSCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Yizhong Guo, Zhanxin Wang, Bin Zhang, Jiao Teng, Weijing Zeng, Yufeng Zhao, Libo Fu, Dongwei Li, Yan Ma, Wenxiong Song, Linlin Liu, Ze Zhang, Xin Yan, Lihua Wang, Yuntian Zhu, Xiaodong Han
Summary: In this study, high-angle annular dark-field imaging was used to reveal the atomic structure of the ITBs present in Pt. The twin thickness and the dislocation-ITB interaction were found to affect the ITB phase structure, which has rarely been reported in previous studies.
CELL REPORTS PHYSICAL SCIENCE
(2022)
