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Synergistic effect of bonding heterogeneity and phonon localization in introducing excellent thermoelectric properties in layered heteroanionic NdZnSbO material

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Journal of Energy Chemistry 2025年第1期100卷 259-272页

作者： Da wan Shuwei Tang Shulin Bai Xiaodong Li Peng Ai wanrong guo Tuo Zheng College of Materials Science and Engineering Liaoning Technical University Faculty of Chemistry Northeast Normal University

Layered rare-earth metal oxides, harnessing the dual properties of oxides and two-dimensional layered materials, exhibit remarkable thermal stability and quantum confinement effects. Therefore, this work adopts the first-principles calculation combined with the Boltzmann transport theory to predict the thermoelectric properties of NdZnSbO compound. The coexistence of weak interlayer van der Waals interactions, robust intralayer ionic bonding, and partial covalent bonding leads to remarkable bonding heterogeneity, which engenders pronounced phonon scattering and imposes constraints on thermal transport along the out-of-plane direction. The weakened chemical bonds induced by the antibonding states, together with the rattling-like behavior of the Zn atom, culminate in the profound anharmonicity in the layered NdZnSbO compound. The weakening bond and heavy element contribute to the softness of phonon modes, which significantly diminishes the phonon group velocity. The redistribution-dominated four-phonon scattering process spans a large optical gap, which effectively reduces the lattice thermal conductivity. The NdZnSbO compound exhibits direct semiconductor characteristic with a bandgap of 0.73 e V by adopting the Heyd-Scuseria-Ernzerhof(HSE06) functional in combination with spin–orbit coupling(SOC) effect. The multi-valley feature of NdZnSbO compound augur favorably for band degeneracy, thus amplifying the power factor. Consequently, an optimal figure-of-merit(ZT) of 3.40 at 900 K is achieved for the n-type NdZnSbO compound. The present study delves deeply insights into the origins for the low thermal conductivity of NdZnSbO compound and proposes an optimization scheme to enhance overall thermoelectric performance.

关键词： Bond strength (chemical)

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近程毫米波多普勒目标模拟器的建模与仿真

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系统仿真学报 2009年第16期21卷 4954-4957页

作者：刘清成李兴国万援南京理工大学毫米波光波近感技术研究所南京210094

针对典型弹道体目标多普勒信号时频效应的分析,建立了连续波多普勒体制毫米波近程雷达的视频回波信号数学模型,并利用信号重排小波gabor变换方法对某靶机进行时频谱图仿真,仿真的结果说明该模型是可行的,同时提出将LabVIEW软件和D/A转... 详细信息

针对典型弹道体目标多普勒信号时频效应的分析,建立了连续波多普勒体制毫米波近程雷达的视频回波信号数学模型,并利用信号重排小波gabor变换方法对某靶机进行时频谱图仿真,仿真的结果说明该模型是可行的,同时提出将LabVIEW软件和D/A转换器产生的多普勒模拟信号注入射频调制器即可得到体目标多普勒回波信号,从而保证近程半实物仿真测试系统目标模拟器的可靠性。

关键词：多普勒时频效应毫米波近程雷达半实物仿真目标模拟器

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Inhibition and Control Effects of Different Amendments on Cd Activation in Soil and Cd Absorption in Rice

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Agricultural Science & Technology 2021年第4期22卷 33-39页

作者： LIU Kai-lou wan guo-yuan YE Hui-cai LI Da-ming YU Xi-chu Jiangxi Institute of Red Soil National Engineering and Technology Research Center for Red Soil ImprovementNanchang 331717PRC Jiangxi Apiculture Research Institute Nanchang 330052PRC

Through pot tests of early rice and late rice in Cd polluted environment(soil Cd content,1.0 mg/kg),the inhibition and control effects of single application of organic fertilizers involving pig manure and biochar,and their combined application with alkaline amendments involving lime and oyster shell powder on soil Cd activation and rice Cd absorption were *** the correlation between soil available Cd and rice grain Cd was *** results showed that compared with CK which did not involve amendments,the grain yields of early rice and late rice increased by 15.52%~36.01%and 12.02%~27.28%,respectively,the grain Cd content decreased by 24.76%~64.53%and 4.93%~58.32%,respectively,and the grain Cd accumulation decreased by 22.27%~51.76%and 33.84%~46.95%,respectively,except for single pig manure *** particular,the Cd reduction effect of biochar was significantly better than that of pig manure,and the combined application with oyster shell powder was better than that with lime;after the harvest of early and late rice,the available Cd content in soil applied with amendments decreased by 35.00%~65.88%and 30.93%~68.57%,respectively,compared with *** analysis showed that the soil available Cd content and rice grain Cd content could fit the linear equation well(R2>0.70,P<0.05),which demonstrated that the combined application of organic fertilizers and alkaline amendments can quickly reduce the Cd content of rice grain by passivating soil available Cd,and the combined application between biochar and oyster shell powder had a better effect.

关键词： Cd contaminated soil Organic fertilizer Alkaline amendment Rice Grain Cd reduction effect

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基底膜相关基因在类风湿关节炎不同中医证型中的转录组学分析及药物预测

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中国组织工程研究 2025年第25期29卷 5486-5500页

作者：刘源渠源万雅坤郭婧宇姜萍山东中医药大学第一临床医学院山东省济南市250014 山东中医药大学康复医学院山东省济南市250014 山东中医药大学中医学院山东省济南市250014 山东中医药大学附属医院山东省济南市250014

背景:基底膜基因与类风湿关节炎的发生发展密切相关,但不同中医证型下基底膜相关基因在其发病机制中的作用尚不明确。目的:基底膜基因联合转录组学分析探讨类风湿关节炎5种不同中医证型的发病机制差异,并进行潜在治疗药物预测。方法:基... 详细信息

背景:基底膜基因与类风湿关节炎的发生发展密切相关,但不同中医证型下基底膜相关基因在其发病机制中的作用尚不明确。目的:基底膜基因联合转录组学分析探讨类风湿关节炎5种不同中医证型的发病机制差异,并进行潜在治疗药物预测。方法:基于GEO数据库整理类风湿关节炎相关中医证型芯片数据以及基底膜相关基因,利用R-limma包筛选差异表达基因,Mfuzz包进行表达趋势分析。借助STRING数据库构建PPI网络,UPset筛选关键基因,通过R-clusterProfiler包对差异表达基因进行GSEA及富集分析,同时绘制ROC曲线评估基底膜相关核心靶点对5种证型分别的诊断价值。基于CIBERSORT核心算法计算每种证型的免疫浸润情况。最后,利用SymMap和COREMINE数据库预测可靶向基底膜相关核心基因治疗类风湿关节炎不同证型的潜在中药及小分子药物。结果与结论:①在5种类风湿关节炎中医证型中(风湿痹阻证、寒湿痹阻证、肝肾亏虚证、气血两虚证及血瘀阻络证)分别筛选出67,47,59,57,55个基底膜相关差异表达基因,其中关键靶点分别为5,7,5,3,5个。③各证型中富集最多的为细胞基质黏附、免疫细胞迁移及胶原代谢等生物过程以及细胞外基质受体相互作用、PI3K-Akt、局灶性粘连和Rap1信号通路等。④药物预测结果显示,土茯苓、川乌、绵马贯众及黄精是通过影响基底膜基因治疗5种类风湿关节炎中医证型最具潜力的中药。⑤结果证实,基底膜相关基因的异常表达可能是通过调控细胞附着、免疫细胞迁移及炎症反应等多个途径影响类风湿关节炎的发生和发展,在不同证型中有着差异表现,其中ITGA6可作为5种类风湿关节炎证型中共同的诊断标志物。清热解毒类中药可能是类风湿关节炎不同证型治疗中可以贯穿始终的潜在有效药物。

关键词：基底膜相关基因证型类风湿关节炎中药转录组学分析 GSEA分析免疫浸润分子对接药物预测机制研究

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Maintaining moderate levels of hypochlorous acid promotes neural stem cell proliferation and differentiation in the recovery phase of stroke

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Neural Regeneration Research 2025年第3期20卷 845-857页

作者： Lin-Yan Huang Yi-De Zhang Jie Chen Hai-Di Fan wan wang Bin wang Ju-Yun Ma Peng-Peng Li Hai-Wei Pu Xin-Yian guo Jian-Gang Shen Su-Hua Qi School of Medical Technology Xuzhou Key Laboratory of Laboratory DiagnosticsXuzhou Medical UniversityXuzhouJiangsu ProvinceChina School of Pharmacy Xuzhou Medical UniversityXuzhouJiangsu ProvinceChina Department of Laboratory Medicine Branch Hospital of Huai’an First People’s HospitalHuai’anJiangsu ProvinceChina Department of Laboratory Medicine the Affiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsu ProvinceChina School of Chinese Medicine The University of Hong KongHong Kong Special Administrative RegionChina

It has been shown clinically that continuous removal of ischemia/reperfusion-induced reactive oxygen species is not conducive to the recovery of late ***,previous studies have shown that excessive increases in hypochlorous acid after stroke can cause severe damage to brain *** previous studies have found that a small amount of hypochlorous acid still exists in the later stage of stroke,but its specific role and mechanism are currently *** simulate stroke in vivo,a middle cerebral artery occlusion rat model was established,with an oxygen-glucose deprivation/reoxygenation model established in vitro to mimic *** found that in the early stage(within 24 hours)of ischemic stroke,neutrophils produced a large amount of hypochlorous acid,while in the recovery phase(10 days after stroke),microglia were activated and produced a small amount of hypochlorous ***,in acute stroke in rats,hypochlorous acid production was prevented using a hypochlorous acid scavenger,taurine,or myeloperoxidase inhibitor,4-aminobenzoic acid *** results showed that high levels of hypochlorous acid(200μM)induced neuronal apoptosis after oxygen/glucose deprivation/***,in the recovery phase of the middle cerebral artery occlusion model,a moderate level of hypochlorous acid promoted the proliferation and differentiation of neural stem cells into neurons and *** suggests that hypochlorous acid plays different roles at different phases of cerebral ischemia/reperfusion *** levels of hypochlorous acid(5 and 100μM)promoted nuclear translocation ofβ-*** transfection of single-site mutation plasmids,we found that hypochlorous acid induced chlorination of theβ-catenin tyrosine 30 residue,which promoted nuclear ***,our study indicates that maintaining low levels of hypochlorous acid plays a key role in the recovery of neurological function.

关键词： cell differentiation cerebral ischemia/reperfusion injury chlorination hypochlorous acid microglia neural stem cell neurogenesis nuclear translocation stroke β-catenin

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Numerical simulations of FPSO with sloshing tanks in a random freak waves

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Journal of Hydrodynamics 2022年第3期34卷 491-498页

作者： yuan Zhuang guo wang De-cheng wan Jian-wei Wu Computational Marine Hydrodynamics Lab(CMHL) School of Naval ArchitectureOcean and Civil EngineeringShanghai Jiao Tong UniversityShanghai200240China Marine Design and Research Institute of China Shanghai200011China Wuhan Second Ship Design and Research Institute Wuhan430205China

This paper presents a potential-viscous coupled method to simulate a floating production storage and offloading(FPSO)with two liquefied natural gas(LNG)sloshing tanks in a random freak *** potential theory uses high-order-spectral(HOS)*** random wave is generated by HOS for 2000 s,and a freak wave is observed around 1830 *** FPSO LNG model was firstly verified in regular waves using HOS-computational fluid dynamics(CFD)coupled method and validated the HOS-CFD coupled method can solve the ship motion coupled with sloshing tanks *** FPSO with LNG tanks are then simulated in the freak wave,showed the coupling effects when the freak wave *** the existence of the sloshing tanks,the amplitude of the roll motion decreases and the period of roll motion *** breaking phenomenon can be observed when the wave crest of the freak wave encounters with the ship.

关键词： Ship motion with sloshing tank high-order-spectral-computational fluid dynamics(HOS-CFD)method naoe-FOAM-SJTU solver freak waves

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饲料脂肪水平对彭泽鲫免疫、抗氧化和肠道消化酶活性的影响

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饲料研究 2020年第1期43卷 14-17页

作者：付辉云万国湲傅义龙饶毅张桂芳陈文静丁立云江西省水产科学研究所江西南昌330039 江西省养蜂研究所江西南昌330052

试验研究饲料脂肪水平对彭泽鲫免疫、抗氧化和肠道消化酶活性的影响,以平均体质量为(31.58±0.19)g的彭泽鲫为研究对象,进行为期8周的饲养试验。将180尾试验鱼随机分成3组。以鱼油和豆油为脂肪源,配制脂肪水平分别为5%、8%、11%(实测值... 详细信息

试验研究饲料脂肪水平对彭泽鲫免疫、抗氧化和肠道消化酶活性的影响,以平均体质量为(31.58±0.19)g的彭泽鲫为研究对象,进行为期8周的饲养试验。将180尾试验鱼随机分成3组。以鱼油和豆油为脂肪源,配制脂肪水平分别为5%、8%、11%(实测值为4.7%、7.9%、11.1%)的试验饲料。结果显示:随着饲料脂肪水平的增加,总抗氧化酶(T-AOC)和超氧化物歧化酶(SOD)活性显著增强,11%饲料脂肪组活性显著高于其余各组(P<0.05);过氧化氢酶(CAT)活性和丙二醛(MDA)含量呈现相反的趋势。彭泽鲫肠道脂肪酶活性、胰蛋白酶活性随饲料脂肪水平的增加显著升高(P<0.05),11%饲料脂肪组活性达到峰值。随着饲料脂肪水平的增加,淀粉酶活性呈降低的趋势,5%饲料脂肪水平组其活性显著高于11%饲料脂肪水平组(P<0.05)。试验结果表明,饲料中适宜的脂肪水平可提高彭泽鲫的消化酶活性,增强抗氧化能力,并有助于改善彭泽鲫的健康状况。

关键词：彭泽鲫脂肪免疫抗氧化消化酶

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Responses of HFR-LWC beams under close-range blast loadings accompanying membrane action

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Defence Technology（防务技术） 2020年第6期16卷 1167-1187页

作者： wan-xiang Chen Li-sheng Luo Zhi-kun guo Peng yuan School of Civil Engineering Sun Yat-Sen UniversityZhuhai519082China State Key Laboratory of Disaster Prevention&Mitigation of Explosion&Impact Army Engineering University of PLANanjing210007China Southern Marine Science and Engineering Guangdong Laboratory Zhuhai519082China

The load-carrying capacities and failure patterns of reinforced concrete components can be significantly changed by membrane ***,limited work has been carried out to investigate the blast resistance of Hybrid Fiber Reinforced Lightweight Aggregate Concrete(HFR-LWC)members accompanying membrane *** paper presents a theoretical approach to quantitatively depicting the membrane behavior and its contribution on the behavior of HFR-LWC beams under close-range blast loadings,and the suitability of the proposed model is validated by a series of field *** improved Single-Degree-of-Freedom(SDOF)model was employed to describe the dynamic responses of beam-like members under blast loadings accompanying membrane action,where the mass-load coefficient is determined according to the nonuniformly distributed load induced by close-range explosion,and the membrane action is characterized by an in-plane(longitudinal)force and a resisting *** elastoplastic and recovery responses of HFR-LWC beams under the combined action of blast load and membrane force were analyzed by the promoted model.A specially built end-constrain clamp was developed to provide membrane action for the beam member when they are subjected to blast load *** is demonstrated that the analytical displacement-time histories are in good agreement with experimental results before peak deflections and that the improved SDOF model is an acceptable tool for predicting the behavior of HFR-LWC beams under blast loadings accompanying membrane action.

关键词： Blast load Membrane action HFR-LWC beam Dynamic response Experimental study

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Synthesis of Schiff Base Calix[4]arene Crowns

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Chinese Chemical Letters 2002年第8期13卷 699-700页

作者： Xiao Bing wan Chuan Ming JIN Xun guo guo yuan LU Department of Chemistry Nanjing UniversityNanjing 210093

This letter reports the synthesis of Schiff base calix[4]arene crowns containing m-xylylene phenol subunit, in which calix[4]arene Schiff base crowns 2a, 2b and 2c were formed by 1:1 condensation of calix[4]arene diamine 1 with dialdehydes (2, 6-diformyl-4-chlorophenol 3a, 2, 6-diformyl-4-methylphenol 3b, 2, 6-diformyl-4-tert-butylphenol 3c) under high dilute condition in refluxing anhydrous ethanol in 65-70% yield.

关键词： Calixarene Schiff base 2, 6-diformyl-4-substituted phenol 1:1 condensation.

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Cholesterol metabolism: physiological versus pathological aspects in intracerebral hemorrhage

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Neural Regeneration Research 2025年第4期20卷 1015-1030页

作者： Ruoyu Huang Qiuyu Pang Lexin Zheng Jiaxi Lin Hanxi Li Lingbo wan Tao wang Department of Forensic Science School of Basic Medicine and Biological SciencesSuzhou Medicine College of Soochow UniversitySuzhouJiangsu ProvinceChina

Cholesterol is an important component of plasma membranes and participates in many basic life functions,such as the maintenance of cell membrane stability,the synthesis of steroid hormones,and *** plays a key role in the establishment and maintenance of the central nervous *** brain contains 20%of the whole body’s cholesterol,80%of which is located within myelin.A huge number of processes(e.g.,the sterol regulatory element-binding protein pathway and liver X receptor pathway)participate in the regulation of cholesterol metabolism in the brain via mechanisms that include cholesterol biosynthesis,intracellular transport,and *** brain injuries or diseases involving crosstalk among the processes above can affect normal cholesterol metabolism to induce detrimental ***,we hypothesized that cholesterol-related molecules and pathways can serve as therapeutic targets for central nervous system *** hemorrhage is the most severe hemorrhagic stroke subtype,with high mortality and *** cholesterol levels are associated with the risk of intracerebral ***,secondary pathological changes after intracerebral hemorrhage are associated with cholesterol metabolism dysregulation,such as neuroinflammation,demyelination,and multiple types of programmed cell *** cholesterol accumulation in the brain has been found after intracerebral *** this paper,we review normal cholesterol metabolism in the central nervous system,the mechanisms known to participate in the disturbance of cholesterol metabolism after intracerebral hemorrhage,and the links between cholesterol metabolism and cell *** also review several possible and constructive therapeutic targets identified based on cholesterol metabolism to provide cholesterol-based perspectives and a reference for those interested in the treatment of intracerebral hemorrhage.

关键词： cell death cholesterol metabolism intracerebral hemorrhage myelination therapeutic target

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