期刊：
Journal of the Ceramic Society of Japan,2022年130(8):668-679 ISSN：1882-0743
作者机构：
[Cao, Fangcheng] Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Peoples R China.;[He, Zhen] Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212003, Jiangsu, Peoples R China.;[Yang, Lixia] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 210016, Peoples R China.
关键词：
TRISO fuel particle;Silicon carbide;Steam oxidation;Fracture strength;Finite element analysis
摘要：
The oxidation performance of silicon carbide (SiC) coating on nuclear fuel particle and the subsequent effect on the mechanical integrity was investigated. The effects of steam content on the phase composition and microstruc-ture of the SiC layer at different temperatures were discussed. Reaction rates of steam with the SiC layer were found to obey the liner-parabolic oxidation law. The fracture strength of SiC shell was evaluated, which was dominated by the thickness variation of the SiC. Furthermore, finite element analysis was performed to simulate the stress distribution in the SiC shell during the crush test. The results revealed the SiC shell of reduced thickness caused by oxidation had higher stress concentration at the inner surface and resulted in a lower fracture strength value. (C) 2022 The Ceramic Society of Japan. All rights reserved.
作者机构：
[Wang, Dongxing] Univ South China, Sch Civil Engn, Hengyang, Peoples R China.;[Wang, Dongxing] Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Peoples R China.;[Zhu, Jiaye] Wuhan Univ, Sch Civil Engn, 8 Dong Hu South Rd, Wuhan 430072, Peoples R China.;[Zeng, Gang] Hubei Univ Arts & Sci, Sch Civil Engn & Architecture, Xiangyang, Peoples R China.
通讯机构：
[Dongxing Wang] S;School of Civil Engineering, University of South China, Hengyang, China<&wdkj&>State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, China<&wdkj&>School of Civil Engineering, Wuhan University, Wuhan, China
摘要：
To ameliorate the physic-mechanical behavior of waste sludge at reasonable costs, fly ash and silica fume are incorporated in MKPC-based solidification, and the impact of MKPC-mineral additive is comprehensively examined from the multi-viewpoint of compaction, strength, permeability and compressibility. The micromorphology of solidified sludge is identified by SEM tests. The results show MKPC-mineral additive has an excellent ability to improve the strength and deformation property of sludge under the influence of MKPC content, mineral additive content, curing age and compaction degree. MKPC content and mineral additive content have a slight impact on the maximum dry density of solidified sludge. The optimum water content tends to increase with mineral additive content and to decrease with MKPC content. The compressive strength and yielding stress have an ascending trend with an extension in curing age and an increase in MKPC content and compaction degree, and the compressibility and permeability presents a descending tendency. The SEM analysis reveals that struvite-k crystals play a dominant role in cementing fine grains to form an interconnected network, and a tiny amount of Mg(OH)2 is generated as secondary phase. It should be noted C-S-H gel and MgSiO3 are respectively produced for MKPC-fly ash and MKPC-silica fume solidified sludge.
摘要：
Breast cancer is the most common type of malignancy among women. Due to the iron-dependent character of breast cancer cells, they are more sensitive to ferroptosis compared to normal cells. It is possible to reverse tumor resistance by inducing ferroptosis in breast cancer cells, thereby improving tumor treatment outcomes. Ferroptosis is highly dependent on the balance of oxidative and antioxidant status. When ferroptosis occurs, intracellular iron levels are significantly increased, leading to increased membrane lipid peroxidation and ultimately triggering ferroptosis. Ferroptotic death is a form of autophagy-associated cell death. Synergistic use of nanoparticle-loaded ferroptosis-inducer with radiotherapy and chemotherapy achieves more significant tumor suppression and inhibits the growth of breast cancer by targeting cancer tissues, enhancing the sensitivity of cells to drugs, reducing the drug resistance of cancer cells and the toxicity of drugs. In this review, we present the current status of breast cancer and the mechanisms of ferroptosis. It is hopeful for us to realize effective treatment of breast cancer through targeted ferroptosis.
作者机构：
[Liu, He; Chu, Peng-Cheng; Wang, Yi-Nong] Qingdao Univ Technol, Res Ctr Theoret Phys, Sci Sch, Qingdao 266033, Peoples R China.;[Li, Xiao-Hua] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.;[Li, Xiao-Hua] Univ South China, Cooperat Innovat Ctr Nucl Fuel Cycle Technol & Eq, Hengyang 421001, Peoples R China.;[Zhang, Jia-Wei] Chongqing Univ Sci & Technol, Dept Phys, Chongqing 401331, Peoples R China.
摘要：
We investigate the properties of equation of state, the quark fraction, the isospin chemical potential, and the entropy per baryon of strange quark matter at finite temperature under constant magnetic field within the quasiparticle model. We find that both the effects of temperature and magnetic field can significantly influence the thermodynamical properties of quark matter. Our result also indicates that the maximum mass of protoquark stars (PQSs) increases with the heating process along the star evolution, and the core temperature of the maximum mass of PQSs depends on the different snapshots by considering the isentropic stages along the star evolution line.
期刊：
FRONTIERS IN CHEMISTRY,2022年10:847621 ISSN：2296-2646
通讯作者：
Zeng, X.;Fang, H.
作者机构：
[Peng, Lijun; Zeng, Xi] Univ South China, Canc Res Inst, Hengyang Med Sch, Hunan Prov Key Lab Tumor Cellular & Mol Pathol, Hengyang, Peoples R China.;[Peng, Lijun] Univ South China, Affiliated Hosp 1, Hengyang Med Sch, Dept Spine Surg, Hengyang, Peoples R China.;[Peng, Lijun] Chinese Univ Hong Kong, Sir YK Pao Ctr Canc, Dept Clin Oncol, Canc Epigenet Lab,State Key Lab Oncol South China, Hong Kong, Peoples R China.;[Peng, Lijun] Chinese Univ Hong Kong, Li Ka Shing Inst Hlth Sci, Hong Kong, Peoples R China.;[Fang, Huapan] Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Suzhou, Peoples R China.
通讯机构：
[Zeng, X.] H;[Fang, H.] I;Hunan Province Key Laboratory of Tumor Cellular and Molecular Pathology, China;Institute of Functional Nano and Soft Materials (FUNSOM), China
摘要：
The Ba0.5Sr0.5Co0.8Fe0.2O3-delta (BSCF) + Co3O4 composite material is evaluated as a cathode for proton-conducting solid oxide fuel cells (H-SOFCs), which provides a new strategy to solve the thermal mismatch problem between the cathode and electrolyte without impairing the cathode performance. BSCF is a well-known cathode material for intermediate-temperature SOFCs, but its performance for H-SOFCs is unsatisfactory. One reason for the relatively low performance is the poor contact between the BSCF cathode and the electrolyte due to the high thermal expansion of BSCF. The relatively low melting point of Co3O4 is taken in this study as an advantage to bond the BSCF cathode to the electrolyte, mitigating the poor contact problem for the BSCF with the electrolyte. Furthermore, the addition of Co3O4 promotes the catalytic activity of the BSCF cathode as demonstrated by experimental studies and first-principles calculations, leading to an impressively high performance of BSCF-based cathodes for H-SOFCs.
期刊：
International Journal of Hydrogen Energy,2022年47(3):1947-1953 ISSN：0360-3199
通讯作者：
Tao, Zetian;Bi, Lei
作者机构：
[Gao, Yongji; Hu, Wenjing; Bi, Lei; Fu, Min; Tao, Zetian; Liu, Yong; Tong, Hua] Univ South China, Sch Resources Environm & Safety Engn, Hengyang 421001, Hunan, Peoples R China.;[Lei, Libin] Guangdong Univ Technol, Smart Energy Res Ctr, Sch Mat & Energy, Guangzhou 510006, Peoples R China.
通讯机构：
[Tao, ZT; Bi, L] U;Univ South China, Sch Resources Environm & Safety Engn, Hengyang 421001, Hunan, Peoples R China.
关键词：
Cathode;Proton migration;Solid oxide electrolysis cells;Density functional theory
摘要：
A series of W doped Pr0.5Ba0.5(Co0.7Fe0.3)O3-delta (PBCF) are prepared and characterized as cathodes for proton-conducting solid oxide fuel cell (H-SOFC). The enhancement of proton migration and formation ability through W doping significantly increases the cell performance and it is further verified by the density functional theory (DFT) simulation, presenting the high valence element doping can be a potential approach for the design of cathode. (C) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
作者：
Du, Tingfeng;Lei, Aihua;Zhang, Naiyu;Zhu, Cuiming
期刊：
FRONTIERS IN IMMUNOLOGY,2022年13:908010 ISSN：1664-3224
通讯作者：
Zhu, C.
作者机构：
[Lei, Aihua; Zhang, Naiyu; Zhu, Cuiming; Du, Tingfeng] Univ South China, Inst Pathogen Biol, Hengyang Med Coll, Hunan Prov Key Lab Special Pathogens Prevent & Con, Hengyang, Peoples R China.
通讯机构：
[Zhu, C.] I;Institute of Pathogenic Biology, Hengyang Medical College, University of South China, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, China
摘要：
In order to find out radon reduction performance of the overburden layer on uranium mill tailings (UMTs) pond beach surface after rainfall, the rainfall simulation experiment of the overburden layer was carried out with the self-developed equipment. Based on the radon migration model of the overburden layer on the UMTs pond beach surface, the change rule of radon exhalation in four types of compactness of the overburden layer within 120 hours after rainfall was studied, and the corresponding moisture content was also analyzed. The results show that the radon concentration in the overburden layer of UMTs increases nonlinearly; the dynamic change in moisture content of the overburden layer on the beach surface leads to the unsteady radon exhalation. The variation of radon exhalation shows three stages: increase, linear decrease, and stability tendency. After rainfall, radon exhalation rate increases due to water vapor and there is free radon seepage in pores. With the decrease of free radon production rate, radon exhalation rate gradually decreases until it reaches stability again. When the thickness of the overburden layer reduces, the porosity decreases with the increase in compactness of the overburden layer. While the decrease in radon reduction is more obvious, the less time it takes for radon exhalation to vary from unstable to stable overburden after rainfall.
作者：
Zhu, Xiangyue;Li, Qianqian;Li, Jianzhi;Zhang, Xiaohong;Xiao, Hong
期刊：
CELLULAR AND MOLECULAR BIOLOGY,2022年68(3):239-246 ISSN：0145-5680
通讯作者：
Li, J.;Zhang, X.
作者机构：
[Zhu, Xiangyue] Hubei Univ Arts & Sci, Xiangyang Cent Hosp, Dept Otolaryngol & Head & Neck Surg, Affiliated Hosp, Xiangyang 441021, Peoples R China.;[Xiao, Hong; Li, Qianqian; Zhang, Xiaohong] Hubei Univ Arts & Sci, Xiangyang Cent Hosp, Dept Nursing, Affiliated Hosp, Xiangyang 441021, Peoples R China.;[Li, Jianzhi] Univ South China, Sch Nursing, Hengyang 421001, Peoples R China.
通讯机构：
[Li, J.] S;[Zhang, X.] D;Department of Nursing, China;School of Nursing, China
关键词：
laryngeal cancer;laser vocal cord surgery under a laryngoscope microscope;nano-silver medical antibacterial dressing;quality of life;surgical wound
摘要：
To explore the adoption effect of nano-silver medical antibacterial dressing in the perioperative treatment of patients with laryngeal cancer, 120 patients with early laryngeal cancer were selected as the research objects. According to the different treatments, they were averagely divided into the test group (laser vocal cord surgery under a laryngeal microscope and nano-silver medical antibacterial dressing) and the control group (laser vocal cord surgery under a laryngeal microscope and sterilized vaseline gauze). The results showed that there were considerable differences in dressing-change times, dressing -change cost, hospital stay, and recovery time between both groups (P < 0.05). The number of mild pain cases in the test group was more than that in the control group at 1, 3, and 5 days after surgery, with statistically considerable differences (P < 0.05). There were substantial differences in wound area between the two groups at 3 and 5 days after surgery, and the test group was larger than the control group (P < 0.05). In the test group, 0 patients had postoperative reinfection, wound dehiscence, and wound hernia. In the control group, 3 patients had postoperative reinfection, 1 had wound dehiscence, and 1 had wound hernia. In summary, compared with traditional sterilized vaseline gauze, the nano -silver medical antibacterial dressing could reduce postoperative dressing pain and promote the recovery of wounds, thus shortening the hospital stay and improving the quality of life of patients after surgery. & nbsp;Copyright: (c) 2022 by the C.M.B. Association. All rights reserved.
期刊：
INSIGHTS INTO IMAGING,2022年13(1):1-9 ISSN：1869-4101
通讯作者：
Zhao, Heng;Zhang, Shuixing
作者机构：
[Ren, Qiuping; Zhang, Shuixing; Xiong, Zhiyuan] Jinan Univ, Affiliated Hosp 1, Dept Radiol, 613 Huangpu West Rd, Guangzhou 510627, Guangdong, Peoples R China.;[Tang, Deqiu; Zhao, Heng] Univ South China, Hengyang Med Sch, Affiliated Hosp 1, Dept Radiol, Chuanshan Rd 69, Hengyang, Hunan, Peoples R China.
通讯机构：
[Zhang, Shuixing; Zhao, Heng] D;Department of Radiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Chuanshan Road No. 69, Hengyang, Hunan, People's Republic of China.;Department of Radiology, The First Affiliated Hospital of Jinan University, No. 613, Huangpu West Road, Tianhe District, Guangzhou, 510627, Guangdong, People's Republic of China.
摘要：
Traumatic bone marrow lesions (TBMLs) are considered to represent a range of concealed bone injuries, including haemorrhage, infarction, and localised oedema caused by trabecular microfracture occurring in the cancellous bone. If TBMLs are not managed timeously, they potentially cause a series of complications that can lead to irreversible morbidity and prolonged recovery time. This article reviews interesting image findings of bone marrow lesions in dual-energy computed tomography (DECT). In addition to combining the benefits of traditional CT imaging, DECT also reveals and identifies various structures using diverse attenuation characteristics of different radiographic spectra. Therefore, DECT has the capacity to detect TBMLs, which have traditionally been diagnosed using MRI. Through evaluating DECT virtual non-calcium maps, the detection of TBMLs is rendered easier and more efficient in some acute accidents.
期刊：
Journal of Cleaner Production,2022年365:132547 ISSN：0959-6526
通讯作者：
Rongrong Deng
作者机构：
[Deng, Rongrong; Zhang, Aoxiang] Univ South China, Sch Econ Management & Law, Hengyang 421001, Hunan, Peoples R China.
通讯机构：
[Rongrong Deng] S;School of Economics, Management and Law, University of South China, Hengyang, Hunan, 421001, China
关键词：
Net carbon sink efficiency;Carbon sequestration;Spatial durbin model;Influencing factors
摘要：
In the social context of mitigating climate change and achieving carbon neutrality, the improvement of carbon emissions efficiency and the protection of biological carbon sequestration have emerged as hot topics recently due to their prospects in carbon dioxide emissions reductions. A large volume of studies has identified the spatial distribution characteristics and influencing factors of carbon emissions efficiency. The contributions of our study lied in constructing a system to measure net carbon sink efficiency. Secondly, this study discussed the carbon neutrality performance of Chinese cities from three different aspects of carbon dioxide emissions, carbon sequestration of vegetation and net carbon sink efficiency. Thirdly, this paper identified the influencing factors of net carbon sink efficiency, and examined the direct and indirect effect of different factors. For this purpose, we evaluated the net carbon sink efficiency of 285 cities in China from 2012 to 2017 using a slacks-based measure model, and explored its spatial distribution characteristics, then employed a spatial Durbin model to explore the influencing factors of net carbon sink efficiency. Our main findings indicate that the net carbon sink efficiency steadily increased during the study period, whereas their spatial characteristics were "high at both ends and low in the middle" from the south to the north. There is a significant spatial autocorrelation in the net carbon sink efficiency of Chinese cities. Several kinds of measures can be applied to promote net carbon sink efficiency, such as increasing the proportion of tertiary industry, promoting economic growth, attracting foreign direct invest-ment, increasing road area, promoting technological progress and strengthening environmental regulation. However, the increase of urban population may decrease efficiency. Nevertheless, an obvious spatial spillover effect exists in the net carbon sink efficiency of Chinese cities. The results can provide policy recommendations for the government to formulate differentiated carbon neutralization policies.
关键词：
Cascade signal amplification;Convenient operation;Multi-enzyme biosensor;Pesticide;Smartphone-based sensing
摘要：
Monitoring of pesticide residues in food and environmental matrices is undoubtedly crucial to guarantee food safety and ecological health, yet how to realize their sensitive and convenient detection is still challenging. Herein, we propose an all-in-one test strip that elaborately integrates bioenzyme, nanozyme and chromogen together, and achieve the highly sensitive and convenient sensing of pesticide residues assisted by a smartphone. A sequential self-assembly strategy was first explored to acquire an integrative bioenzyme-nanozyme-chromogen assembly, and then the assembly was confined in a biocompatible hydrogel to construct the test strip. Thanks to both the proximity and confinement effects, a ∼1.2-fold improvement of the cascade catalytic efficiency was gained to benefit high-sensitivity detection. More importantly, since all the sensing elements, including target recognition units and signal amplification modules, were rationally integrated in the test strip, detection operation was significantly simplified, making it possible for in-field rapid analysis. Besides, the microenvironment provided by the alginate hydrogel carrier endowed the test strip with an excellent sensing stability. By taking paraoxon as a typical pesticide, high-performance detection of the target was accomplished via the smartphone-assisted all-in-one test strip. Moreover, the test strip was successfully applied for paraoxon detection in various real samples and exhibited good correlations with commercial kits, demonstrating its great prospect for practical applications. Our work not only offers a new tool for the high-sensitivity and convenient monitoring of pesticide residues, but will also inspire the development of efficient multi-enzyme sensing platforms.
