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ACSL4 is a target forβ-hydroxybutyrate-induced increase in fatty acid content and lipid droplet accumulation in bovine mammary epithelial cells 认领 引用
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作者 Ming Li Jingjing Wang +8 位作者 Jia’nan Wen Juan JLoor Qianming Jiang Jingyi Wang Huijing Zhang Yue Yang Wei Yang Bingbing Zhang Chuang Xu 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2026年第3期1137-1149,共13页
Ketosis,a common metabolic disease during early lactation,is associated with high circulating levels ofβ-hydroxybutyrate(BHB).A portion of BHB that reaches the mammary gland is utilized as precursor for synthesis of ... Ketosis,a common metabolic disease during early lactation,is associated with high circulating levels ofβ-hydroxybutyrate(BHB).A portion of BHB that reaches the mammary gland is utilized as precursor for synthesis of fatty acids.Recent findings from nonruminant studies revealed that long chain fatty acyl-CoA ligase 4(ACSL4)could play a role in the regulation of cellular fatty acid metabolism,but the mechanisms by which ACSL4 mediates cellular lipid metabolism in response to BHB remains unclear.To achieve the aims,we conducted in vivo or in vitro analyses using bovine mammary gland biopsies and the immortalized mammary epithelial cell line(MAC-T).The in vivo study(n=6 cows per group)involved healthy cows(plasma BHB2.0 mmol L–1)from which mammary gland tissue was biopsied.In vitro,MAC-T cells were challenged with 0,0.3,0.6,1.2,or 2.4 mmol L–1BHB for 24 h to determine an optimal dose.Subsequently,MAC-T were incubated with 1.2 mmol L–1BHB for 0,3,6,12,24,or 48 h.Furthermore,MAC-T cells were treated with small interfering ACSL4(siACSL4)for 24 h or ACSL4 overexpression plasmid(pcACSL4)for 36 h followed by a challenge with 1.2 mmol L–1BHB for 24 h.Results showed that increased mRNA and protein abundance of lipogenic genes were linked to both mammary gland and in vitro challenge with BHB.BHB increased fatty acid content by activating ACSL4 expression,whereas inhibition of ACSL4 reduced BHB-induced reactive oxygen species(ROS)overproduction,enhancement of mitochondrial membrane potential,increase in fatty acid content,and lipid droplet accumulation.Furthermore,we also elevated ACSL4 expression with an overexpression plasmid to clarify its molecular role in response to BHB challenge.ACSL4 overexpression enhances BHB-induced lipid droplet accumulation by increased fatty acid content.Overall,the information showed that ACSL4 is crucial for the process of producing fatty acids from exogenous BHB.Reduced ACSL4 decreased fatty acid content and lipid droplet accumulation,improved mitochondrial function,directed more fatty acids towards oxidation.Thus,ACSL4 plays an important role in determining the fate of intracellular fatty acids and BHB in BMECs. 展开更多
关键词 bovine mammary epithelial cells fatty acid content ketosis BHB ACSL4
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Real-time impedance spectroscopy of lithium-ion batteries via composite current pulses 认领 引用
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作者 Yue Yang Tongfang Fu +4 位作者 Wenbin Li Paul Thiele Chenye Song Simon Mertes Stefan Pischinger 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第6期902-914,I0021,共13页
Conventional sinusoidal electrochemical impedance spectroscopy is often impractical for real-time control or on-board diagnostics because measurements at low frequencies require long dwell time,resulting in lengthy te... Conventional sinusoidal electrochemical impedance spectroscopy is often impractical for real-time control or on-board diagnostics because measurements at low frequencies require long dwell time,resulting in lengthy test duration.To address this issue,the composite current pulse excitation is implemented in this work for real-time impedance spectrum acquisition,using the discrete Fourier transform.Pulse sequences and sampling conditions are designed to balance bandwidth and accuracy of the impedance results while satisfying hardware constraints and system relaxation requirements.To improve repeatability under noise and dynamic operating conditions,outliers are mitigated by introducing truncated singular value decomposition reconstruction.Two pulse widths(1 and 100 ms)are applied to overcome the bandwidth limitation of a single-width excitation,enabling an accurate spectrum across 1 k Hz to 1 Hz within~1 s.On a commercial 18650 lithium-ion battery,a mean relative impedance deviation of 2.1%compared with galvanostatic electrochemical impedance spectroscopy results is achieved across state of charge from 5%to 90%at 10 and 25℃.Time-domain voltage simulations using pulse-calibrated parameters reproduce the measured dynamic responses,achieving accuracy comparable to simulations parameterized from galvanostatic electrochemical impedance spectroscopy. 展开更多
关键词 Real-time impedance measurement Current pulse Electrochemical impedance spectroscopy Lithium-ion batteries
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A New Well-Testing Method for Pumping-Shutdown Data of Multi-Fractured Horizontal Wells:A Case Study from the Sichuan Shale Gas Basin 认领 引用
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作者 Xuefeng Yang Chunyu Ren +7 位作者 Deliang Zhang Huaicai Fan Yue Chen Yue Yang Yan Zhang Shuai Wu Baoyun Zhang Xin Zhao 《Energy Engineering》 EI 2026年第8期479-504,共26页
In southern Sichuan’s deep shale gas development,multi-stage fractured horizontal wells are commonly used.Evaluating fracturing results is challenging due to complex fracture networks.This study classifies fracture s... In southern Sichuan’s deep shale gas development,multi-stage fractured horizontal wells are commonly used.Evaluating fracturing results is challenging due to complex fracture networks.This study classifies fracture systems into four types:single-wing,bi-wing,branched,and serial fractures.A discrete fracture model(DFM)combined with matrix-fracture flow is used to establish a single-stage well testing interpretation model.To address multi-solution issues in well testing,an equivalent fracture network model based on a trilinear flow model is proposed,adjusting crossflow coefficients and the fracture network volume ratio.The study finds significant differences in the pressure derivative dip and the second linear flow stage onset with changes in these parameters.Sensitivity analysis shows that inner zone permeability affects the early and middle stages of the well testing curve.Using shut-in pressure data,a numerical well testing model is applied,with results showing a fracture zone permeability of 0.95 mD,a fracture half-length of 87 m,and fracture network volume ratio of 5%.This research provides guidance for evaluating fracturing effects. 展开更多
关键词 Deep shale gas single-stage fracture well test analysis fracture network morphology discrete fracture model
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Controllable phase-reconstruction strategy for LiFePO4homogeneous regeneration:Reaction mechanism,characterization and prospect 认领 引用 被引量：1
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作者 Zihao Zeng Yi Chen +4 位作者 Chao Zhu Hai Lei Wei Sun Yue Yang Peng Ge 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第1期553-571,I0013,共19页
The growing volume of end-of-life lithium-ion batteries(LIBs)represents both an urgent environmental challenge and a critical resource opportunity,especially for cathode materials.Among commercial cathodes,LiFePO4(LFP... The growing volume of end-of-life lithium-ion batteries(LIBs)represents both an urgent environmental challenge and a critical resource opportunity,especially for cathode materials.Among commercial cathodes,LiFePO4(LFP)dominates the market due to its favorable properties;thus,a substantial amount of LFP cathode materials is expected to retire in the near future.The conventional hydrometallurgical method suffers from high costs and serious pollution.Direct regeneration technologies,especially solid-state sintering,provide a more efficient and environmentally benign alternative by repairing cathode structures through high-temperature solid-phase reactions without extra chemical reagents.Traditional solid-state sintering faces challenges in processing spent LFP from diverse sources,struggling to achieve the homogenization of physical–chemical properties and electrochemical performance.To address the limitations above,phase homogenization with a lattice reconstruction strategy has been investigated,which can enable effective lattice reconstruction and microstructural homogenization,demonstrating robust adaptability to spent samples from variable sources.This review systematically summarizes the mechanisms,detailed steps,characterization techniques,and advances in pre-oxidation optimization(including ion-doping and coated carbon layer modification),as well as future research directions for sustainable LFP recycling.Given this,this review is expected to offer theoretical guidance for achieving homogeneous regeneration of LFP cathode. 展开更多
关键词 Spent LiFePO4 Regeneration Phase-reconstruction Reaction mechanism Characterization
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Modeling noise in quantum computing of scalar convection 认领 引用 被引量：1
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作者 Jiahua Yang Zhen Lu Yue Yang 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2026年第6期152-164,共13页
Quantum computing holds potential for accelerating the simulation of fluid dynamics.However,hardware noise in the noisy intermediate-scale quantum era significantly distorts simulation accuracy.Although error magnitud... Quantum computing holds potential for accelerating the simulation of fluid dynamics.However,hardware noise in the noisy intermediate-scale quantum era significantly distorts simulation accuracy.Although error magnitudes are frequently quantified,the specific physical effects of quantum noise on flow simulation results remain largely uncharacterized.We investigate the influence of gate noise on the quantum simulation of one-dimensional scalar convection.By employing a quantum spectral algorithm where ideal time advancement affects only Fourier phases,we isolate and analyze noise-induced artifacts in spectral magnitudes.We derive a theoretical transition matrix based on Hamming distances between computational basis states to predict spectral decay,and then validate this model against density-matrix simulations and experiments on a superconducting quantum processor.Furthermore,using data-driven sparse regression,we demonstrate that quantum noise manifests in the effective partial differential equation primarily as artificial diffusion and nonlinear source terms.These findings suggest that quantum errors can be modeled as deterministic physical terms rather than purely stochastic perturbations. 展开更多
关键词 Scalarconvection Quantumcomputing Quantumnoise Transitionmatrix Data-drivenmodeling
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Metal(loid)accumulation and foliar physiological responses in Oryza sativa L.induced by PM1 exposure from various emission sources 认领 引用
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作者 Meixuan Fang Yue Yang +4 位作者 Baofeng Zhang Yingluo Chen Jingdong Mao Liping Lou Qi Lin 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2026年第1期585-595,共11页
Foliar uptake of airborne metal(loid)s plays a crucial role in metal(loid)accumulation in plant organs and is influ-enced by the size and emission sources of aerosols.Given the high enrichment of toxic metal(loid)s in... Foliar uptake of airborne metal(loid)s plays a crucial role in metal(loid)accumulation in plant organs and is influ-enced by the size and emission sources of aerosols.Given the high enrichment of toxic metal(loid)s in submicron-scale particulates(PM1),this study established a PM1 exposure system to examine airborne metal(loid)accu-mulation and foliar physiological responses in Oryza sativa L.The results showed that the concentrations of Cu,Zn,As,Pb,and Cd in the leaves and grains were influenced not only by the airborne metal(loid)levels but also by the specific nature of the PM1 particles.The quantitative model for PM1-associated Pb entry into leaf tissue indicated that foliar Pb accumulation was primarily driven by particle adhesion,followed by hydrophilic pene-tration and trans-stomatal liquid film migration,accounting for 87%–89%of the total accumulation.The strong hygroscopicity and high Pb activity of PM1 emitted from waste incineration(WI)increased the Pb absorption coefficient via the hydrophilic and liquid film migration pathway.In contrast,the high hydrophobicity of PM1 from coal burning(CB)led to greater retention of Pb on leaf surfaces.Both foliar reactive oxygen metabolism and photosynthesis indices were sensitive to air pollution.Foliar metal(loid)accumulation and airborne PM1 concentration accounted for the variance in physiological responses in rice leaves.Our results also indicated that Pb was the key element in PM1 emissions from both coal burning(CB)and waste incineration(WI)responsible for significant physiological changes in rice leaves. 展开更多
关键词 Metal(loid) PM1 exposure Coal burning Waste incineration Physiological response Particle nature
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A novel full-thickness skin graft technique for the surgical management of congenital buried penis in children 认领 引用
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作者 Hang Wu Yue Yang +2 位作者 Jing-Jing Li Jin-Long Yang Xiao-Liang Fang 《Asian Journal of Andrology》 SCIE CAS CSCD 2026年第2期213-218,共6页
Buried penis in children presents significant surgical challenges,particularly in severe cases involving skin deficiency and fascial abnormalities.Traditional fixation(TF)-based techniques often yield suboptimal cosme... Buried penis in children presents significant surgical challenges,particularly in severe cases involving skin deficiency and fascial abnormalities.Traditional fixation(TF)-based techniques often yield suboptimal cosmetic and functional outcomes.This study evaluated a novel full-thickness skin graft(FTSG)technique using inner preputial skin for congenital buried penis.A retrospective analysis was conducted on boys aged 4–7 years who underwent surgical management between January 2020 and December 2024 at the Department of Urology,Children’s Hospital of Fudan University,National Children’s Medical Center(Shanghai,China).Patients were divided into FTSG(n=132)and TF(n=141)groups.The FTSG technique achieved greater penile length at 6 months(mean±standard deviation[s.d.]:3.52±0.51 cm vs 3.21±0.59 cm,P<0.001)and 12 months(mean±s.d.:3.88±0.61 cm vs 3.39±0.69 cm,P<0.001)postoperatively,with lower rates of skin contracture(0.8%vs 6.4%,P=0.020)and retraction(1.5%vs 7.8%,P=0.015),compared to TF group.Operative time in FTSG group was slightly longer than that in TF group(mean±s.d.:70.92±9.10 min vs 65.70±8.66 min,P<0.001)without additional burden.Parental satisfaction for penile size and morphology was higher(P<0.001 for both)in FTSG group than TF group,while voiding satisfaction was comparable(P=0.239).These findings suggest that an FTSG using inner preputial tissue is a safe and effective alternative to TF techniques for children with severe congenital buried penis,providing improved penile exposure,enhanced cosmetic outcomes,and a reduced risk of recurrence.Longer-term studies are warranted to evaluate graft adaptation during penile growth and puberty. 展开更多
关键词 buried penis children full-thickness skin graft penile morphology reconstructive surgery surgical outcome
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Non-phosgene synthesis processes of isocyanates:One-step and two-step routes 认领 引用
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作者 Yue Yang Qixu Hu +3 位作者 Xiaojie Zhao Ganlu Li Hui Li Kequan Chen 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2026年第5期43-64,共22页
Isocyanates are important products in the polyurethane industry.The industrial production of isocyanates is currently entirely based on the phosgene process.However,phosgene is extremely toxic and generates highly cor... Isocyanates are important products in the polyurethane industry.The industrial production of isocyanates is currently entirely based on the phosgene process.However,phosgene is extremely toxic and generates highly corrosive hydrochloric acid byproduct.Also,chlorine-containing impurities in the product are difficult to remove,which can reduce the reactivity of isocyanates.To protect the environment and human health,the development of non-phosgene synthesis processes for isocyanates is of great significance.This review provides an overview of all reported non-phosgene processes for synthesizing isocyanates,which are divided into one-and two-step pathways.The one-step pathways include the direct carbonylation of nitro and amino groups and the Curtius,Hofmann,and Lossen rearrangements.The two-step pathway involves the thermal decomposition of carbamates:first forming carbamates with amino or nitro groups by using CO,CO2,dimethyl carbonate,urea,and alkyl carbamates as the carbonyl source,and then under the action of catalysts and solvents,the carbamates are thermally cracked to generate the corresponding isocyanates.This article focuses on the synthesis processes and mechanisms of various non-phosgene methods,as well as current research progress.Future prospects for the non-phosgene synthesis of isocyanates are also discussed. 展开更多
关键词 Non-phosgene Isocyanates One-step and two-step routes Carbonylation Rearrangement reactions Thermal cracking
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矿山安全隐患多模态智能感知与识别方法研究综述 认领 引用 被引量：4
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作者 程德强 王衍辰 +3 位作者 岳阳 田亮 翟杰 寇旗旗 《矿产保护与利用》 CAS CSCD 2026年第1期1-13,共13页
在“双碳”战略与智慧矿山建设持续推进的背景下,矿井安全生产对高可靠智能感知技术提出了更高要求。受低照度、粉尘遮挡、水雾弥漫及空间受限等复杂环境因素影响,基于可见光、红外、深度图像或三维点云的单模态感知方法易出现成像退化... 在“双碳”战略与智慧矿山建设持续推进的背景下,矿井安全生产对高可靠智能感知技术提出了更高要求。受低照度、粉尘遮挡、水雾弥漫及空间受限等复杂环境因素影响,基于可见光、红外、深度图像或三维点云的单模态感知方法易出现成像退化与特征缺失,导致识别稳定性不足,难以满足高风险场景下对人员行为、装备运行状态及环境灾害征兆的精准识别需求。多模态融合感知凭借模态间在纹理细节、温度特征、几何关系等方面的互补性,为提升矿井安全隐患识别能力提供了新的技术途径。综述了矿井常用的多模态数据特性,分析了可见光相机、红外相机、激光雷达与深度相机在信息采集与特征表达上的优势与局限;进一步梳理了数据级、特征级与决策级三类典型融合策略及其适用场景;重点总结了近年来多模态融合目标检测与隐患识别方法的研究与应用进展,涵盖可见光图像-红外图像、可见光图像-三维点云与可见光图像-深度图像三种多模态协同路径,并以煤矿应用场景为例展示其在人员定位、装备运行监测与复杂工况环境感知等任务中的工程价值。最后,讨论了多模态感知在标注成本、跨模态对齐、鲁棒性提升与轻量化部署方面面临的挑战,并展望其在矿井自动化、无人作业与安全风险预测中的未来发展方向,旨在为矿山安全隐患多模态智能感知与识别技术的理论研究与工程化应用提供参考与技术指引。 展开更多
关键词 矿井智能感知 多模态融合 目标检测 深度学习
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柔性配电网氢储能SOP长-短周期协调低碳运行优化方法 认领 引用 被引量：1
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作者 晋萃萃 岳洋 +2 位作者 张磐 贺春 马世乾 《电力系统及其自动化学报》 CSCD 北大核心 2026年第5期100-111,共12页
针对高比例可再生能源与新型负荷接入配电网带来的源荷功率快速波动和季节性能量失衡问题,提出一种柔性配电网氢储能智能软开关(hydrogen energy storage integrated soft open point,HSOP)长-短周期协调优化方法。构建计及源荷匹配度的... 针对高比例可再生能源与新型负荷接入配电网带来的源荷功率快速波动和季节性能量失衡问题,提出一种柔性配电网氢储能智能软开关(hydrogen energy storage integrated soft open point,HSOP)长-短周期协调优化方法。构建计及源荷匹配度的含HSOP柔性配电网低碳运行优化模型,考虑HSOP换流器损耗和氢储能系统能量损耗,精细化表征HSOP时序运行特性。采用基于双层模型预测控制的滚动优化方法对所建立模型进行求解,得到实时更新的柔性配电网长-短周期协调优化策略,在改进的IEEE 33节点测试算例上进行验证。结果表明,所提方法可以有效提升源荷不确定性场景下的长周期配电网源荷匹配度,显著提升光伏就地消纳能力,降低配电网碳排放水平。 展开更多
关键词 柔性配电网 氢储能系统 智能软开关 源荷匹配度 低碳运行优化
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融合跨模态引导和增强的零样本目标检测网络 认领 引用
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作者 程德强 岳阳 +2 位作者 马浩辉 胥星辰 寇旗旗 《计算机工程与应用》 EI CSCD 北大核心 2026年第12期182-195,共14页
针对现有零样本目标检测方法中视觉与语义模态融合能力弱、跨模态引导不足等问题,提出一种基于深度神经网络架构的融合跨模态引导与频率增强机制的零样本目标检测方法(GE-ZSD)。该方法通过设计跨模态特征引导模块,利用语义嵌入向量层次... 针对现有零样本目标检测方法中视觉与语义模态融合能力弱、跨模态引导不足等问题,提出一种基于深度神经网络架构的融合跨模态引导与频率增强机制的零样本目标检测方法(GE-ZSD)。该方法通过设计跨模态特征引导模块,利用语义嵌入向量层次化地引导图像特征提取过程,从而提升模型对语义相关区域的关注能力。同时为加强模态间关系建模能力,提出跨模态频率增强模块,引入频域表示与多层注意机制,从模态互补和频谱增强两个角度提升语义与视觉特征的融合质量。在MSCOCO、ILSVRC和VG等多个数据集上的实验表明,所提出方法提升了零样本目标检测的性能,并展现其在不同数据集和场景下的鲁棒性与泛化能力。 展开更多
关键词 深度神经网络 零样本学习 目标检测 跨模态 语义引导 注意力机制
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基于转录组学和网络毒理学分析筛选和评价镉神经毒性的自噬相关hub基因 认领 引用
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作者 罗燕 岳洋 +3 位作者 谢佳 陈梦妍 余争平 皮会丰 《陆军军医大学学报》 CAS CSCD 北大核心 2026年第11期1555-1568,共14页
目的自噬功能障碍在镉的神经毒性中发挥重要作用,因此本研究筛选镉暴露HT22细胞自噬相关hub基因,并评价hub基因相关调控网络在镉的神经毒性中的作用。方法CCK-8法检测经0、5、10、15、20、25μmol/L CdCl2暴露24 h后HT22细胞的存活率... 目的自噬功能障碍在镉的神经毒性中发挥重要作用,因此本研究筛选镉暴露HT22细胞自噬相关hub基因,并评价hub基因相关调控网络在镉的神经毒性中的作用。方法CCK-8法检测经0、5、10、15、20、25μmol/L CdCl2暴露24 h后HT22细胞的存活率,并计算半数抑制浓度(half inhibitory concentration,IC50);对照组(n=4)不用镉处理,镉暴露组(n=4)采用CdCl2的半数抑制浓度处理24 h,提取对照组和镉暴露组RNA样本进行转录组学检测;基于镉暴露HT22细胞的转录组学结果和公开数据库筛选自噬相关差异表达基因,并结合GO和KEGG分析主要富集通路;结合PPI网络进一步筛选自噬相关hub基因,并用qPCR实验验证hub基因相对表达水平;进一步构建hub基因相关多重调控网络(miRNAs、药物、转录因子、RNA结合蛋白)。结果镉暴露引起HT22细胞存活率下降(P<0.01)且具有剂量依赖性,IC50≈10μmol/L;与对照组比较,镉暴露组转录组学表达谱发生全局性改变;筛选出36个自噬相关差异表达基因和13个hub基因(Atf3、Csf2、Cdkn1a、Cd68、Cryab、Hbegf、Adam8、Areg、Gadd45a、Plk3、Aldh3a1、Adm、Dusp4),主要富集在氧化应激、信号转导相关通路;其中,11个hub基因(Atf3、Csf2、Cdkn1a、Cd68、Cryab、Hbegf、Adam8、Areg、Gadd45a、Plk3、Dusp4)表达上调且具有统计学意义(P<0.05);hub基因参与构建了271个miRNAs、86种药物、20个转录因子、17个RNA结合蛋白相关的多重调控网络。结论镉暴露引起HT22细胞11个自噬相关hub基因表达改变,且神经细胞自噬相关hub基因参与的多重调控网络介导了镉的神经毒性作用。 展开更多
关键词 镉 神经毒性 自噬 氧化应激
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光电融合集成与通信感知技术 认领 引用
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作者 闫连山 谢小军 +9 位作者 陈建平 周林杰 裴丽 延凤平 岳洋 叶佳 邓雄 邹喜华 潘炜 祝宁华 《西南交通大学学报》 EI CSCD 北大核心 2026年第3期806-832,共27页
随着宽带通信、人工智能以及卫星互联网等领域的快速发展,全球数据流量呈指数级增长,传统电子集成技术面临带宽、功耗与延迟的物理瓶颈.光电融合集成技术通过“材料—器件—芯片—系统”全尺度的多维协同,突破电子技术在带宽、功耗的瓶... 随着宽带通信、人工智能以及卫星互联网等领域的快速发展,全球数据流量呈指数级增长,传统电子集成技术面临带宽、功耗与延迟的物理瓶颈.光电融合集成技术通过“材料—器件—芯片—系统”全尺度的多维协同,突破电子技术在带宽、功耗的瓶颈,成为支撑下一代信息技术发展的关键使能技术.本文系统综述光电融合集成技术的最新研究进展,首先阐述其概念内涵与发展趋势,探讨从链路系统到芯片级的精准仿真技术,并重点分析异质集成工艺、核心器件与系统级芯片的研究现状,进而深入讨论光电融合在高速通信与智能感知领域的应用,最后展望面向空天地一体化网络与AI算力集群的发展趋势,指出需攻克多物理场耦合极限、跨尺度制造一致性与智能化适配三大核心挑战,并提出分阶段突破路径,为6G全域覆盖与算力网络可持续发展提供战略参考. 展开更多
关键词 光电融合集成 通信感知一体化 光电集成芯片
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基于地面测轨数据的轨道保持状态评估方法 认领 引用
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作者 杨盛庆 岳杨 +2 位作者 陈桦 刘美师 王嘉轶 《上海航天（中英文）》 CSCD 2026年第4期203-215,共13页
重轨干涉合成孔径雷达(SAR)卫星的高精度空间轨迹重访,通常以参考轨道为基准形成虚拟编队系统,此类自主轨道控制具有高频次、小控制量的特征。随着国内外具有自主重访轨迹保持任务的卫星项目逐渐增多,在非合作卫星、无遥测数据的情况下... 重轨干涉合成孔径雷达(SAR)卫星的高精度空间轨迹重访,通常以参考轨道为基准形成虚拟编队系统,此类自主轨道控制具有高频次、小控制量的特征。随着国内外具有自主重访轨迹保持任务的卫星项目逐渐增多,在非合作卫星、无遥测数据的情况下,采用公开发布的两行式轨道根数(TLE)等轨道数据进行轨道保持状态评估的方法有待确立。轨道保持的状态评估主要包括2方面,即卫星在轨道保持控制基础之上形成的长期轨道运动特性和轨道控制策略的反演分析。地面测轨数据具有稀疏、非均匀、融合了控制效果的特点。数据分析过程中,针对周期性运动采用数据驱动分析方法进行频率分析。通过对轨道参数的解算,可以判断轨道保持控制使卫星能够长期保持良好的太阳同步、冻结轨道等轨道特征,这2项轨道特征主要受地球非球形引力场J2项作用影响。低轨卫星的受摄运动,还表征为受大气阻力摄动影响的轨道衰减、受日月三体引力摄动影响的轨道倾角长期和周期变化。上述摄动产生的影响均会改变虚拟编队的管径状态,需要卫星实施相应的自主导航与轨道控制。针对控制策略反演,通过对半长轴的数据连续性分析,确定轨道面内的控制点和控制量,通过对轨道倾角的周期项解析解比对和数据连续性分析,确定轨道面外的控制点和控制效果。 展开更多
关键词 地面测轨数据 太阳同步轨道 冻结轨道 周期性运动 状态评估 陆地探测一号(LT-1)
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带输入时滞的高速列车防滑控制 认领 引用
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作者 蔡亮成 乐洋 黄德青 《控制理论与应用》 EI CAS CSCD 北大核心 2026年第3期541-550,共10页
列车防滑控制通过调整蠕滑率确保行车安全.现有列车防滑控制依赖车载传感器采集车速与轮速等状态信息.因为列车通信网络能力限制,存在实时运行数据与采集数据不匹配的输入时滞现象.输入时滞影响防滑控制性能,甚至导致防滑控制失效.为解... 列车防滑控制通过调整蠕滑率确保行车安全.现有列车防滑控制依赖车载传感器采集车速与轮速等状态信息.因为列车通信网络能力限制,存在实时运行数据与采集数据不匹配的输入时滞现象.输入时滞影响防滑控制性能,甚至导致防滑控制失效.为解决上述问题,本文建立了带输入时滞的列车黏着动力学模型,分析不同运行阶段的列车黏着特性,设计带输入时滞的列车运行全过程防滑控制方案.首先,利用线性化技术逼近上述动力学模型,计算系统的输入时滞上界及其控制器参数;然后,根据输入时滞上界,使用估计器设计时滞补偿的列车防滑控制器.仿真实验表明:现有防滑控制无法处理输入时滞的不良影响;本文方法不仅解决输入时滞对列车防滑控制的不利影响,还具有鲁棒性. 展开更多
关键词 输入时滞 防滑控制 线性化技术 线性矩阵不等式
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Chain Mediation of Perceived Value and Brand Attachment: Brand Interaction’s Impact on Consumer Behavioral Intentions in Chinese Time- Honored Food Brands 认领 引用
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作者 Qi Duan Shouzun Li +1 位作者 Yue Yang Yunhan Sun 《Proceedings of Business and Economic Studies》 2026年第4期235-249,共15页
To elucidate how time-honored food brands may maintain long-lasting consumer relationships in the current market by identifying the mechanism by which brand interaction results in behavioral intention. Four latent con... To elucidate how time-honored food brands may maintain long-lasting consumer relationships in the current market by identifying the mechanism by which brand interaction results in behavioral intention. Four latent constructs, consumer brand interaction (CBI), perceived value (PV;functional, emotional, and social), brand attachment (BA), and behavioral intention (BI), were the foundation of a consumer survey based on S-O-R and social-exchange theories. 274 valid responses were obtained using an online survey;the measurement and structural models were estimated using structural equation modeling (SEM), and the mediating and chain-mediating effects were tested using PROCESS bootstrap. The results show that consumers’ behavioral intentions are positively impacted by brand interaction between time-honored food brands and customers, with perceived value and brand attachment acting as chain mediators between the two. In order to turn interactive experiences into repurchase, word-of-mouth recommendation, and premium purchase intentions, time-honored food companies should develop interaction tactics that simultaneously promote traditional craftsmanship and culture and improve perceived value and emotional attachment. In the context of Chinese time-honored food, this study is one of the first to confirm that perceived value and brand attachment chain mediation affect the relationship between brand interaction and behavioral intention. This study gives established Chinese time-honored food companies the theoretical foundation they need to create successful brand interaction strategies. 展开更多
关键词 Chinese time-honored food brands Brand interaction Behavioral intentions Perceived value Brand attachment
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Research on the Evaluation System for the Revitalization and Utilization of Historical Buildings from the Anti-Japanese War in Chongqing and the Dissemination Path of Digital Study Tours 认领 引用
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作者 Yue Yang 《Journal of World Architecture》 2026年第2期36-44,共9页
Against the backdrop of ongoing urban renewal,the dissemination of red culture,and the advancement of smart cultural heritage,the preservation objectives for Chongqing’s anti-Japanese War historical buildings are shi... Against the backdrop of ongoing urban renewal,the dissemination of red culture,and the advancement of smart cultural heritage,the preservation objectives for Chongqing’s anti-Japanese War historical buildings are shifting from“preventing disappearance”to“utilization within preservation and dissemination through utilization.”This paper,starting from the needs of revitalization and utilization,constructs a five-dimensional evaluation framework encompassing“conservation of the original structure,digital fidelity,narrative dissemination,educational transformation,and operational governance.”Furthermore,it proposes a digital study tours product system that connects“heritage sites,online exhibition halls,curriculum resources,research tasks,and urban routes.”By examining two digital model samples from Nanquan,namely Tingquan Building and Kong Garden,this paper discusses the differentiated transformation paths for single-dwelling and compound architectural types in digital study tours.The study posits that the revitalization and utilization of Chongqing’s anti-Japanese War historical buildings should not be equated with general tourism development.Instead,it should be based on authentic preservation,supported by digital archiving and narrative design,and guaranteed by curricular transformation and platform-based governance,thereby facilitating the transformation of historical buildings from static relics into public learning spaces,urban memory nodes,and continuous communication media. 展开更多
关键词 Anti-Japanese war historical buildings Revitalization and utilization Comprehensive evaluation Digital study tours Dissemination and transformation
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Research on the Digital Conservation Technology Path for Historical Buildings from the Anti-Japanese War in Chongqing:Based on HBIM Framework and Multimodal Representation 认领 引用
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作者 Yue Yang 《Journal of Architectural Research and Development》 2026年第2期32-40,共9页
The historical buildings from the Anti-Japanese War in Chongqing serve as significant material witnesses to the urban memory of the rear area during the war and represent spatial texts interwoven with mountain archite... The historical buildings from the Anti-Japanese War in Chongqing serve as significant material witnesses to the urban memory of the rear area during the war and represent spatial texts interwoven with mountain architectural forms and wartime social life.Addressing issues such as diverse types,complex sites,scattered data,and the disconnection between Conservation and dissemination,this paper introduces technologies such as HBIM(Historical Building Information Modeling),AI semantic segmentation,knowledge graphs,digital twins,3D Gaussian Splatting(3DGS),and WebXR.It proposes a digital Conservation pathway of“multi-source collection-Scan-to-HBIM-semantic enhancement-digital twin-multimodal dissemination”.Using digital models of historical buildings from the Anti-Japanese War in the Nanquan area as samples,the paper compares modeling and dissemination strategies across different Conservation levels,spatial scales,and utilization objectives,focusing on cases such as Tingquan Building,Kongyuan,Kong Lingjun’s Villa,Kongyuan Administrative Building,Lin Sen Bathhouse,Wei Lu,the President’s Residence,Bamboo Grove Villa,and the former site of the Research Department of the Central Political School.The study suggests that digital Conservation of historical buildings from the Anti-Japanese War in Chongqing should form a hierarchical system consisting of“archive layer-management layer-monitoring layer-dissemination layer”.High-precision collection and HBIM ensure authenticity,knowledge graphs and digital twins support continuous updates,and 3DGS,panoramic tours,and WebXR enhance public accessibility,serving Conservation decision-making,academic research,course instruction,and social sharing. 展开更多
关键词 Historical buildings from the Anti-Japanese War in Chongqing Digital conservation HBIM Digital twin 3D gaussian splatting(3DGS)
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交叉引物扩增技术快速检测淡水产品中四环素耐药基因TetA 认领 引用
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作者 赖毅东 熊珺 +2 位作者 张甜甜 岳洋 徐振波 《食品安全质量检测学报》 CAS 2026年第8期136-142,共7页
目的建立一种基于交叉引物扩增(cross primer amplification,CPA)技术的新型现场快速检测四环素耐药基因TetA的方法。方法通过特异性设计5条针对TetA基因保守区域的引物,在单一恒温条件(51~60℃)下完成靶标核酸的扩增,整个检测过程可在4... 目的建立一种基于交叉引物扩增(cross primer amplification,CPA)技术的新型现场快速检测四环素耐药基因TetA的方法。方法通过特异性设计5条针对TetA基因保守区域的引物,在单一恒温条件(51~60℃)下完成靶标核酸的扩增,整个检测过程可在45~60 min完成,且仅需水浴锅或金属浴等基础加热设备。为验证其性能,研究对方法的灵敏度、特异性及抗干扰能力进行了系统评价。结果该方法对纯化TetA基因模板的检出限低至30.0 fg/μL,显示出极高的灵敏度。同时,在与四环素类其他耐药基因(如tetB、tetM)及临床常见病原菌基因的对比测试中,未出现非特异性扩增,证实了其优异的选择性。此外,模拟样本检测结果稳定可靠。结论本研究成功建立了一种操作简便、快速、低成本且无需复杂仪器的TetA基因CPA检测新方法。该方法具备的高灵敏度与高特异性,能够有效满足基层医疗机构、养殖场等场所对四环素耐药基因的现场快速筛查需求,为实时监测和遏制抗生素耐药基因的传播提供了一项有力的技术工具,具有重要的实际应用价值。 展开更多
关键词 四环素耐药基因 TetA 交叉引物扩增技术 快速检测 抗生素耐药
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A critical review on oxidation behavior of Co-based superalloys 认领 引用 被引量：10
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作者 Chenghao PEI Qingshuang MA +4 位作者 Qiuzhi GAO Yue YANG Yuhang DU Hailian ZHANG Huijun LI 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2025年第3期183-206,共24页
The novel Co-based superalloys are extensively used in gas-powered and jet engine turbines due to their excellent high-temperature performance, achieved by strengthening the L12-γ′ ordered phase. This review present... The novel Co-based superalloys are extensively used in gas-powered and jet engine turbines due to their excellent high-temperature performance, achieved by strengthening the L12-γ′ ordered phase. This review presents an overview of the research progress on oxidation behavior of Co-based superalloys, including oxidation kinetics, oxides morphology, the formation and spallation of oxide layers, and importantly, the synergistic effects of alloying elements on oxidation resistance—a critical area considering the complex interactions with multiple alloying elements. Additionally, this review compares the oxidation resistance of single crystal versus polycrystalline alloys. The effect of phase interface and dislocations on oxidation behavior is also discussed. While significant progress has been achieved, areas necessitating further investigation include optimizing alloy compositions for enhanced oxidation resistance and understanding the long-term stability of oxide layers. The future prospects for Co-based superalloys are promising as ongoing research aims to address the existing challenges and unlock new applications at even higher operating temperatures. 展开更多
关键词 Cobalt Superalloys Oxidation Alloying elements Microstructure Temperature
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