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Introduction to Longevity Counties in China
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作者 Qi-feng Tang Xin-lu Cui +1 位作者 Si-wen Liu Da-wen Liu 《China Geology》 2025年第3期631-634,共4页
Since ancient times,humanity has yearned for longevity,viewing health and long life as enduring aspirations.Research has shown that longevity genes may be passed down through certain populations(Costa D,2019).However,... Since ancient times,humanity has yearned for longevity,viewing health and long life as enduring aspirations.Research has shown that longevity genes may be passed down through certain populations(Costa D,2019).However,genetics alone is not the decisive factor-environmental conditions also play a vital role in achieving a long life(Selinus O,2013). 展开更多
关键词 health long life longevity genes china longeVITY counties ancient times environmental conditions GENETICS
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蛋白质组学技术分析LongEvans大鼠眼优势柱可塑性终止相关蛋白 被引量:4
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作者 姚军平 阴正勤 王仕军 《眼科新进展》 CAS 2006年第6期413-417,共5页
目的利用二维电泳-质谱技术分析LongEvans大鼠初级视皮层中与眼优势柱终止相关的蛋白质,探索蛋白质组学技术在视觉可塑性研究中的应用。方法取100d龄LongEvans大鼠通过向其初级视皮层中灌注硫酸软骨素酶建立成年眼优势柱移动的动物模型... 目的利用二维电泳-质谱技术分析LongEvans大鼠初级视皮层中与眼优势柱终止相关的蛋白质,探索蛋白质组学技术在视觉可塑性研究中的应用。方法取100d龄LongEvans大鼠通过向其初级视皮层中灌注硫酸软骨素酶建立成年眼优势柱移动的动物模型,然后分别提取22d龄大鼠、100d龄大鼠和100d龄硫酸软骨素酶灌注大鼠的初级视皮层灰质总蛋白,利用二维电泳-质谱技术分析与眼优势柱终止相关的蛋白质。结果通过双向电泳确定了与眼优势柱终止相关的4个蛋白质点,质谱分析鉴定了其中2种蛋白质。这2种蛋白为磷脂酰乙醇胺结合蛋白和胶质纤维酸性蛋白。结论二维电泳-质谱技术可以有效地分离和鉴定视皮层中的特殊蛋白质,随着技术的进步和完善,蛋白质组学技术必将在视觉可塑性研究中占有重要地位。 展开更多
关键词 二维电泳 视皮层 Long EVANS大鼠 蛋白质组 硫酸软骨素
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Chromatin accessibility profiling provides insights into larval cuticle color and adult longevity in butterflies
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作者 Wen-Ting Wan Zhi-Wei Dong +12 位作者 Yan-Dong Ren Jie Yang Xiang-Yu Pan Jin-Wu He Zhou Chang Wei Liu Gui-Chun Liu Ruo-Ping Zhao Ping Hu Chu-Yang Mao Jun Li Wen Wang Xue-Yan Li 《Zoological Research》 SCIE CAS CSCD 2021年第5期614-619,共6页
Butterflies are diverse in virtually all aspects of their ontogeny,including morphology,life history,and behavior.However,the developmental regulatory mechanisms underlying the important phenotypic traits of butterfli... Butterflies are diverse in virtually all aspects of their ontogeny,including morphology,life history,and behavior.However,the developmental regulatory mechanisms underlying the important phenotypic traits of butterflies at different developmental stages remain unknown.Here,we investigated the developmental regulatory profiles of butterflies based on transposase accessible chromatin sequencing(ATAC-seq)at three developmental stages in two representative species(Papilio xuthus and Kallima inachus). 展开更多
关键词 LARVAL longe BEHAVIOR
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Room-temperature continuous-wave operation of GaN-based blue-violet laser diodes with a lifetime longer than 1000h 被引量:5
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作者 Feng Liang Jing Yang +9 位作者 Degang Zhao Zongshun Liu Jianjun Zhu Ping Chen Desheng Jiang Yongsheng Shi Hai Wang Lihong Duan Liqun Zhang Hui Yang 《Journal of Semiconductors》 EI CAS CSCD 2019年第2期39-42,共4页
GaN-based continuous-wave operated blue-violet laser diodes(LDs) with long lifetime are demonstrated, which are grown on a c-plane GaN substrate by metal organic chemical vapor deposition with a 10 × 600 μm^2 ri... GaN-based continuous-wave operated blue-violet laser diodes(LDs) with long lifetime are demonstrated, which are grown on a c-plane GaN substrate by metal organic chemical vapor deposition with a 10 × 600 μm^2 ridge waveguide structure.The electrical and optical characteristics of a blue-violet LD are investigated under direct-current injection at room temperature(25 °C). The stimulated emission wavelength and peak optical power of the LD are around 413 nm and over 600 mW, respectively.In addition, the threshold current density and voltage are as small as 1.46 kA/cm^2 and 4.1 V, respectively. Moreover, the lifetime is longer than 1000 hours under room-temperature continuous-wave operation. 展开更多
关键词 GAN-BASED blue-violet laser DIODES long LIFETIME threshold voltage
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Survey concerning internal medicine physicians and prolonged QT interval:Knowledge and treatment practices 被引量:1
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作者 Elizabeth Wendl Nelson Telles Geoff C Wall 《World Journal of Cardiology》 2021年第3期42-45,共4页
Prolongation of the QT interval is associated with adverse cardiac events specifically Torsades de pointes(TdP).There are multiple mediations that have a known,possible,or conditional risk for prolonged QT interval,bu... Prolongation of the QT interval is associated with adverse cardiac events specifically Torsades de pointes(TdP).There are multiple mediations that have a known,possible,or conditional risk for prolonged QT interval,but general practitioners’knowledge of these medications is unknown.We conducted a survey to assess internal medicine(IM)providers’knowledge of risk factors and medications associated with prolonged QT as well as provider experience and comfort when treating patients with prolonged QT.A 17-question,anonymous survey was constructed in 2019 and distributed to IM providers and residents at a tertiary care center.Questions included demographic information,6 Likert-scale questions gauging provider experience with prolonged QT,and 10 multiple choice clinical vignettes to assess clinical knowledge.Data was analyzed descriptively.Knowledge was assessed via clinical vignettes and compared by level of training.Forty-one responses were received out of a total of 87 possible respondents(47.1%response rate).About 70%of respondents see patients with acquired prolonged QT once monthly or more.95%rarely see congenital prolonged QT.When presented with QTc drug issues,73%of providers seldom or sometimes consulted pharmacy,but about half used online resources.The average correct score on the clinical vignettes was 5.59/10,with the highest scores seen in attending physicians in their first five years of practice(6.96/10).Our survey suggests that IM providers commonly encounter QT prolonging drugs.Educational efforts to improve knowledge of drug and patient risk factors for TdP may be needed. 展开更多
关键词 QTC Torsades de pointes PHARMACOTHERAPY SURVEY Long QT syndrome Drug interactions
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Comprehensive longevity technology of Baosteel No.3 BF
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作者 LIANG Lisheng 《Baosteel Technical Research》 CAS 2014年第3期58-64,共7页
Baosteel No. 3 BF has been running smoothly and stably for more than 18 years and has become China' s longest-life blast furnace, producing many advanced economical and technical indexes. Comprehensive longevity tech... Baosteel No. 3 BF has been running smoothly and stably for more than 18 years and has become China' s longest-life blast furnace, producing many advanced economical and technical indexes. Comprehensive longevity technology has been developed in terms of the design, operation, and maintenance of the No. 3 BF during the prolonged period of research and practice. To obtain stable and smooth operation and to prolong the campaign life, the following measures have been taken: appropriate designing of the furnace profile and cooling system; improving raw material quality and optimizing the operating system; improving the cooling intensity and water quality;and adopting various longevity maintenance measures to ensure the safety of the body and the hearth temperature. 展开更多
关键词 blast furnace long campaign profile design cooling system maintenance
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Prolonged impacts of COVID-19-associated cystitis:A study on longterm consequences
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作者 Sophie Wittenberg Jack Vercnocke +4 位作者 Michael Chancellor Sorabh Dhar Aron Liaw Steven Lucas Nivedita Dhar 《World Journal of Clinical Cases》 SCIE 2023年第33期7987-7993,共7页
BACKGROUND The Coronavirus Disease 2019(COVID-19)caused by the severe acute respiratory syndrome coronavirus 2 virus is an international health concern with substantial morbidity and mortality.COVID-associated cystiti... BACKGROUND The Coronavirus Disease 2019(COVID-19)caused by the severe acute respiratory syndrome coronavirus 2 virus is an international health concern with substantial morbidity and mortality.COVID-associated cystitis(CAC),presents as new onset or exacerbated urinary symptoms,resembling overactive bladder(OAB)symptoms.AIM To examines the long-term outcomes of patients with CAC in the context of Long COVID.METHODS A cohort of 350 patients admitted to Detroit Hospitals with COVID-19 between May and December 2020,displaying CAC symptoms following discharge,was prospectively followed.Initial urologic evaluations occurred at 10-14 wk and were repeated at 21-28 mo postdischarge.Symptoms were managed conservatively,employing behavioral modifications and standard OAB medications.Participants completed surveys assessing urinary symptoms and quality of life(QoL)at both time points.The primary outcome was the Urology Care Foundation Overactive Bladder Assessment Tool.RESULTS 87%of the final cohort(n=310)reported symptom improvement at 21-28 mo post-discharge.Patients with new onset CAC symptoms showed a median decrease of 9-10 points in OAB and QoL scores,while those with existing symptoms experienced a decrease of 6 points.Overall,95.4%of patients with new onset symptoms reported symptom improvement at follow-up,contrasting with 60.7%among those with existing symptoms.CONCLUSION This study presents the first long-term follow-up of adult patients with CAC,revealing a promising prognosis with conservative management measures in the context of Long COVID.These findings provide reassurance to patients regarding symptom resolution and underscore the need for further research into this evolving aspect of COVID-19's impact on urological health. 展开更多
关键词 COVID associated cystitis COVID-19 Long COVID Overactive bladder
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Dose Adjustment for Normal Eating: Longer Term Perspectives of Adults with Type 1 Diabetes
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作者 Pat Rapley Stephanie Axon +3 位作者 Gwen Babel Krystina Creighton Joey M. Kaye Suzanne Brown 《Journal of Diabetes Mellitus》 2014年第3期179-188,共10页
Aim:?To explore the longer term blood glucose self-monitoring outcomes and frequency of monitoring for outpatients with diabetes type 1 after completion of the Dose Adjustment for Normal Eating (DAFNE) course. The hyp... Aim:?To explore the longer term blood glucose self-monitoring outcomes and frequency of monitoring for outpatients with diabetes type 1 after completion of the Dose Adjustment for Normal Eating (DAFNE) course. The hypothesis was that DAFNE outcomes would differ according to frequency of glucose monitoring.Methods:?A?sequential data-triangulation design using existing?baseline (T0) and 12-months (T12)?DAFNE course data and interview data from 12 randomly selected participants who had completed the course two years ago.?Results: Age range was 23 to 70 years with HbA1c 6.1% to 12.6% at T0?and 6.1% to 11.4% at T12. Comparisons of HbA1c, PAID, HAD subscales?anxiety?and?depression,?and covariate data between T0?and T12indicatedsignificant reductions in the mean depression and PAID scores (both?P?< 0.001) for the whole group. For the two groups who recorded their blood glucose less than three times or three or more times per day, changes were not significantly different. For both groups, the trend between T0?and T12?was downwards for change in mean blood glucose level and all survey scales. The proportion of all participants with T12?HbA1c at or below their T0?value was greater than 50% (Proportion = 69%, 95% CI: 56% - 79%) but only the highest HbA1c tertile group showed a significant difference (P?= 0.003). There was an average decrease in the incidence of hypoglycaemic events of 0.6 overall: The greatest change was for the high HbA1c tertile with a mean decrease of 0.8. The interview data suggested that DAFNE graduates experimented more with food, exercise, and insulin;gained knowledge;learnt personal body needs;increased awareness of blood glucose level;gained confidence and improved their quality of life. Conclusions: There was insufficient evidence to conclude that frequency of blood glucose monitoring influenced metabolic control. However, people with type 1 diabetes who undertake the less restricted DAFNE approach to diabetes self-management can improve their quality of life and glycaemic control. 展开更多
关键词 DAFNE ADULTS Type 1 DIABETES Long TERM
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A Research on the Relationship between Intestinal Flora and Human Longevity
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作者 Muzi Cui Jianhua Wu +4 位作者 Yin Zhang Sixing Liu Shifeng Shuai Liyi Dan PingPing Yan 《Journal of Advances in Medicine Science》 2022年第1期28-31,共4页
The exploration of human life and health is advancing with the changes of the times.With the growth of age,the occurrence of chronic diseases of human immunity and organ system is frequent,which has a serious impact o... The exploration of human life and health is advancing with the changes of the times.With the growth of age,the occurrence of chronic diseases of human immunity and organ system is frequent,which has a serious impact on human health.Genes,environment and other random factors determine the outcome of longevity,and intestinal flora is considered to be a decisive factor affecting human health and longevity,mainly because of its huge impact on human immunity,growth and development.The study of the relationship between intestinal flora and longevity is beneficial to improve the health status of the elderly and improve the overall life level of human beings,which has great scientific research value.This review will review the role of intestinal flora in longevity. 展开更多
关键词 Intestinal flora A long life Life and health
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MADS-box transcription factors as green-revolution regulators for plant longevity and biomass production
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作者 Yixiang Wang Jingyuan Liu +3 位作者 Xifeng Ren Chunxiang Fu Liangcai Peng Yanting Wang 《Green Carbon》 2025年第1期110-112,共3页
During long-term evolution,plants have signified a shift in their life-history strategy from perenniality to annuality to rapidly complete their reproduction in variable climatic environments.However,as the human popu... During long-term evolution,plants have signified a shift in their life-history strategy from perenniality to annuality to rapidly complete their reproduction in variable climatic environments.However,as the human population is rapidly increasing and fossil fuels are being increasingly consumed,it becomes essential to develop low-carbon agriculture and sustainable industries.Therefore,it is important to improve plant perennial flowering behavior to upgrade biomass production and maintain biodiversity as a green revolution and carbon neutralization strategy[1]. 展开更多
关键词 fossil fuels plant longevity upgrade biomass production mads box transcription factors green revolution improve plant perennial flowering behavior biomass production long term evolution
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Virial⁃Peng⁃Long状态方程优化及应用
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作者 彭钺 张蕾 +4 位作者 谢明伟 袁晓霞 麻宏亮 李芳 李明 《含能材料》 北大核心 2025年第4期374-383,共10页
为进一步提升Virial⁃Peng⁃Long(VPL)状态方程(equation of state,EOS)描述气相爆轰产物热力学关系准确性,实现VPL EOS对高密度炸药爆轰性能预测准确性提升。在理论分析基础上,通过修正Exponential⁃6(Exp⁃6)势函数近程排斥段存在的异常拐... 为进一步提升Virial⁃Peng⁃Long(VPL)状态方程(equation of state,EOS)描述气相爆轰产物热力学关系准确性,实现VPL EOS对高密度炸药爆轰性能预测准确性提升。在理论分析基础上,通过修正Exponential⁃6(Exp⁃6)势函数近程排斥段存在的异常拐点,得到势能曲线全域连续、光滑的指数型分子势Exponential⁃6modified(Exp⁃6m),基于Exp⁃6m势2~5阶维里系数理论值建立了改进形式的高阶维里型气相爆轰产物状态方程:Virial⁃Peng⁃Long⁃modified(VPLm)EOS。一方面,应用VPLm EOS计算了太安(PETN)、硝化甘油(NG)等低碳/无碳炸药,以及六硝基六氮杂异伍兹烷(CL⁃20)等具有高能量密度炸药的爆轰Chapmann⁃Jouguet(C⁃J)参数,结果表明基于VPLm EOS能够准确评价炸药的爆轰性能。其中对PETN在较高密度下爆压预测偏差普遍低于1.5%,对高密度CL⁃20爆速预测偏差能控制在1.6%以内,计算准确性相比VPL EOS有了显著提升。另一方面,应用VPLm EOS计算了典型含金属起爆药叠氮化铅(LA)在不同密度下的爆速,结果表明VPLm EOS对LA爆速的预测准确性好于Explo5和CHEETAH,相比VPL EOS对LA在较高密度下的爆速计算更为准确。 展开更多
关键词 Virial⁃Peng⁃Long状态方程 分子势函数 爆轰性能 叠氮化铅(LA)
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Non-coding RNAs in acute ischemic stroke:from brain to periphery 被引量:1
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作者 Shuo Li Zhaohan Xu +7 位作者 Shiyao Zhang Huiling Sun Xiaodan Qin Lin Zhu Teng Jiang Junshan Zhou Fuling Yan Qiwen Deng 《Neural Regeneration Research》 SCIE CAS 2025年第1期116-129,共14页
Acute ischemic stroke is a clinical emergency and a condition with high morbidity,mortality,and disability.Accurate predictive,diagnostic,and prognostic biomarkers and effective therapeutic targets for acute ischemic ... Acute ischemic stroke is a clinical emergency and a condition with high morbidity,mortality,and disability.Accurate predictive,diagnostic,and prognostic biomarkers and effective therapeutic targets for acute ischemic stroke remain undetermined.With innovations in high-throughput gene sequencing analysis,many aberrantly expressed non-coding RNAs(ncRNAs)in the brain and peripheral blood after acute ischemic stroke have been found in clinical samples and experimental models.Differentially expressed ncRNAs in the post-stroke brain were demonstrated to play vital roles in pathological processes,leading to neuroprotection or deterioration,thus ncRNAs can serve as therapeutic targets in acute ischemic stroke.Moreover,distinctly expressed ncRNAs in the peripheral blood can be used as biomarkers for acute ischemic stroke prediction,diagnosis,and prognosis.In particular,ncRNAs in peripheral immune cells were recently shown to be involved in the peripheral and brain immune response after acute ischemic stroke.In this review,we consolidate the latest progress of research into the roles of ncRNAs(microRNAs,long ncRNAs,and circular RNAs)in the pathological processes of acute ischemic stroke–induced brain damage,as well as the potential of these ncRNAs to act as biomarkers for acute ischemic stroke prediction,diagnosis,and prognosis.Findings from this review will provide novel ideas for the clinical application of ncRNAs in acute ischemic stroke. 展开更多
关键词 acute ischemic stroke apoptosis blood–brain barrier damage circular RNAs excitatory toxicity long non-coding RNAs MICRORNAS NEUROINFLAMMATION non-coding RNAs oxidative stress
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基于BO-LSTM的排露沟流域气象水文演变分析及径流预测模型建立 被引量:1
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作者 康永德 陈佩 +3 位作者 许尔文 任小凤 敬文茂 张娟 《水利水电技术(中英文)》 北大核心 2025年第4期1-11,共11页
【目的】为揭示祁连山排露沟流域水文情势演变特征,并且为流域未来的水资源管理和优化配置提供依据和参考【方法】根据祁连山野外观测站2000—2019年实测径流和水文资料,采用线性趋势法、Pettitt检验、小波分析等方法,开展了降水与气温... 【目的】为揭示祁连山排露沟流域水文情势演变特征,并且为流域未来的水资源管理和优化配置提供依据和参考【方法】根据祁连山野外观测站2000—2019年实测径流和水文资料,采用线性趋势法、Pettitt检验、小波分析等方法,开展了降水与气温对径流量变化的影响,并建立了BO-LSTM排露沟流域径流预测模型。【结果】结果显示:(1)2000—2019年排露沟流域降水、气温和径流呈现两段式的上升趋势,分界点在2010年,降水和径流,第一阶段上升趋势均高于第二阶段,斜率依次为10.74、3.16;气温则相反,第二阶段高于第一阶段,斜率为0.11。并且降水、气温和径流的MK突变检验z值均大于0。(2)降水量在5—10月对径流量变化的贡献率较大;而气温在12月—次年4月对径流变化的贡献率大。(3)排露沟流域气温主要有3 a、14 a两个主周期,其中第一主周期为14 a;径流存在19 a、9 a和3 a三个主周期,其中第一主周期为19 a;降水主要存在4 a、11 a两个主周期,第一主周期为11 a。(4)BO-LSTM排露沟径流预测模型,精度R 2为0.63,均方根误差为14047 m 3,模型在径流量较小月份的预测精度大于径流量较大的月份。【结论】近20年来排露沟流域的降水、气温及径流均呈上升趋势;排露沟流域径流、降水及气温均存在明显的周期性;气温和降水是影响排露沟流域径流的重要因素;径流预测模型可以适用于排露沟流域。上述研究结果为祁连山水资源效应研究和内陆河流域水资源预测提供科学支撑。 展开更多
关键词 水文 水资源 径流演变 排露沟流域 径流预测 神经网络 LSTM(Long Short-Term Memory)模型 贝叶斯优化算法
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Spatio-temporal prediction of groundwater vulnerability based on CNN-LSTM model with self-attention mechanism:A case study in Hetao Plain,northern China 被引量:2
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作者 Yifu Zhao Liangping Yang +4 位作者 Hongjie Pan Yanlong Li Yongxu Shao Junxia Li Xianjun Xie 《Journal of Environmental Sciences》 2025年第7期128-142,共15页
Located in northern China,the Hetao Plain is an important agro-economic zone and population centre.The deterioration of local groundwater quality has had a serious impact on human health and economic development.Nowad... Located in northern China,the Hetao Plain is an important agro-economic zone and population centre.The deterioration of local groundwater quality has had a serious impact on human health and economic development.Nowadays,the groundwater vulnerability assessment(GVA)has become an essential task to identify the current status and development trend of groundwater quality.In this study,the Convolutional Neural Network(CNN)and Long Short-Term Memory(LSTM)models are integrated to realize the spatio-temporal prediction of regional groundwater vulnerability by introducing the Self-attention mechanism.The study firstly builds the CNN-LSTM modelwith self-attention(SA)mechanism and evaluates the prediction accuracy of the model for groundwater vulnerability compared to other common machine learning models such as Support Vector Machine(SVM),Random Forest(RF),and Extreme Gradient Boosting(XGBoost).The results indicate that the CNNLSTM model outperforms thesemodels,demonstrating its significance in groundwater vulnerability assessment.It can be posited that the predictions indicate an increased risk of groundwater vulnerability in the study area over the coming years.This increase can be attributed to the synergistic impact of global climate anomalies and intensified local human activities.Moreover,the overall groundwater vulnerability risk in the entire region has increased,evident fromboth the notably high value and standard deviation.This suggests that the spatial variability of groundwater vulnerability in the area is expected to expand in the future due to the sustained progression of climate change and human activities.The model can be optimized for diverse applications across regional environmental assessment,pollution prediction,and risk statistics.This study holds particular significance for ecological protection and groundwater resource management. 展开更多
关键词 Groundwater vulnerability assessment Convolutional Neural Network Long Short-Term Memory Self-attention mechanism
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基于差分处理的EMD-LSTM短时空中交通流量预测
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作者 周睿 邱爽 +2 位作者 孟双杰 李明 张强 《科学技术与工程》 北大核心 2025年第2期842-849,共8页
随着中国民航的飞速发展,终端区空中交通流量与日俱增,短时空中交通流量预测对于精准实施空中交通流量管理具有重要意义。为提高短时空中交通流量预测的准确性,提出了基于数据差分处理(data differential processing)的经验模态分解(emp... 随着中国民航的飞速发展,终端区空中交通流量与日俱增,短时空中交通流量预测对于精准实施空中交通流量管理具有重要意义。为提高短时空中交通流量预测的准确性,提出了基于数据差分处理(data differential processing)的经验模态分解(empirical mode decomposition,EMD)和长短期记忆(long short-term memory,LSTM)相结合的短时空中交通流量预测模型。首先,该模型对短时空中交通流量序列进行经验模态分解;其次,为了提高预测精度,运用数据差分对时间序列进行平稳化处理;最后,将平稳处理后的序列分别输入LSTM网络模型进行预测,经过数据重构,得到最终的短时流量预测值。利用郑州新郑国际机场数据进行了实验验证,结果表明,该模型预测精度和拟合程度的典型指标RSME、MAE、R^(2)分别为0.29%,0.08%、96.40%,相较于其他方法,预测精度大幅度提高,可以为短时空中交通流量预测提供有益参考。 展开更多
关键词 空中交通流量管理 短时空中交通流量预测 经验模态分解(empirical mode decomposition EMD) 数据差分处理(data differential processing) 长短期记忆(long short-term memory LSTM)
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Developing color-tunable long afterglow anti-counterfeiting materials using cucurbit[6]uril and classical aggregation-caused quenching compounds through multiple non-covalent interactions 被引量:1
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作者 Xingyue Yuan Li Wu +5 位作者 Qiuyu Peng Yanyan Tang Mingxu Wang Yuhang Wei Zhu Tao Xin Xiao 《Chinese Chemical Letters》 2025年第9期345-349,共5页
This investigation focuses on the utilization of cucurbit[6]uril(Q[6])as the host compound for the development of long-lasting afterglow materials.By strategically manipulating the outer surface interactions of Q[6],c... This investigation focuses on the utilization of cucurbit[6]uril(Q[6])as the host compound for the development of long-lasting afterglow materials.By strategically manipulating the outer surface interactions of Q[6],classical aggregation-caused quenching(ACQ)compounds such as fluorescein sodium(FluNa)and calcein sodium(CalNa)were transformed into afterglow materials with varying colors and durations upon exposure to ultraviolet light.This transformation was facilitated through a host-vip doping method combined with coordination with metal ions.Even at a reduced doping concentration of 5×10^(-5)wt%,the materials exhibit remarkable afterglow properties,lasting up to 2 s,with a phosphorescence lifetime of up to 150 ms.Moreover,by adjusting the concentration of the vip compound,the persistent luminescence color of the materials could be easily transitioned from orange to yellow and subsequently to green.These findings suggest that the developed afterglow materials hold significant potential for multilevel anti-counterfeiting and information encryption applications when exposed to ultraviolet light.The supramolecular assembly strategy,which relies on the outer surface interactions of cucurbit[n]uril,offers a simpler and more efficient approach to crafting multi-color luminescent materials.Additionally,this method opens avenues for enhancing the application potential of aggregation-caused quenching(ACQ)compounds in various technological domains. 展开更多
关键词 Cucurbit[n]uril Room-temperature phosphorescence Long afterglow ANTI-COUNTERFEITING SELF-ASSEMBLY
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Potential mechanisms of non-coding RNA regulation in Alzheimer's disease 被引量:1
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作者 Yue Sun Xinping Pang +5 位作者 Xudong Huang Dinglu Liu Jingyue Huang Pengtao Zheng Yanyu Wei Chaoyang Pang 《Neural Regeneration Research》 2026年第1期265-280,共16页
Alzheimer's disease,a progressively degenerative neurological disorder,is the most common cause of dementia in the elderly.While its precise etiology remains unclear,researchers have identified diverse pathologica... Alzheimer's disease,a progressively degenerative neurological disorder,is the most common cause of dementia in the elderly.While its precise etiology remains unclear,researchers have identified diverse pathological characteristics and molecular pathways associated with its progression.Advances in scientific research have increasingly highlighted the crucial role of non-coding RNAs in the progression of Alzheimer's disease.These non-coding RNAs regulate several biological processes critical to the advancement of the disease,offering promising potential as therapeutic targets and diagnostic biomarkers.Therefore,this review aims to investigate the underlying mechanisms of Alzheimer's disease onset,with a particular focus on microRNAs,long non-coding RNAs,and circular RNAs associated with the disease.The review elucidates the potential pathogenic processes of Alzheimer's disease and provides a detailed description of the synthesis mechanisms of the three aforementioned non-coding RNAs.It comprehensively summarizes the various non-coding RNAs that have been identified to play key regulatory roles in Alzheimer's disease,as well as how these noncoding RNAs influence the disease's progression by regulating gene expression and protein functions.For example,miR-9 targets the UBE4B gene,promoting autophagy-mediated degradation of Tau protein,thereby reducing Tau accumulation and delaying Alzheimer's disease progression.Conversely,the long non-coding RNA BACE1-AS stabilizes BACE1 mRNA,promoting the generation of amyloid-βand accelerating Alzheimer's disease development.Additionally,circular RNAs play significant roles in regulating neuroinflammatory responses.By integrating insights from these regulatory mechanisms,there is potential to discover new therapeutic targets and potential biomarkers for early detection and management of Alzheimer's disease.This review aims to enhance the understanding of the relationship between Alzheimer's disease and non-coding RNAs,potentially paving the way for early detection and novel treatment strategies. 展开更多
关键词 Alzheimer's disease biomarkers circular RNA long non-coding RNA MICRORNA ncRNA regulation NEURODEGENERATION non-coding RNA PATHOGENESIS therapeutic targets
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Development and application of an intelligent thermal state monitoring system for sintering machine tails based on CNN-LSTM hybrid neural networks 被引量:1
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作者 Da-lin Xiong Xin-yu Zhang +3 位作者 Zheng-wei Yu Xue-feng Zhang Hong-ming Long Liang-jun Chen 《Journal of Iron and Steel Research International》 2025年第1期52-63,共12页
Real-time prediction and precise control of sinter quality are pivotal for energy saving,cost reduction,quality improvement and efficiency enhancement in the ironmaking process.To advance,the accuracy and comprehensiv... Real-time prediction and precise control of sinter quality are pivotal for energy saving,cost reduction,quality improvement and efficiency enhancement in the ironmaking process.To advance,the accuracy and comprehensiveness of sinter quality prediction,an intelligent flare monitoring system for sintering machine tails that combines hybrid neural networks integrating convolutional neural network with long short-term memory(CNN-LSTM)networks was proposed.The system utilized a high-temperature thermal imager for image acquisition at the sintering machine tail and employed a zone-triggered method to accurately capture dynamic feature images under challenging conditions of high-temperature,high dust,and occlusion.The feature images were then segmented through a triple-iteration multi-thresholding approach based on the maximum between-class variance method to minimize detail loss during the segmentation process.Leveraging the advantages of CNN and LSTM networks in capturing temporal and spatial information,a comprehensive model for sinter quality prediction was constructed,with inputs including the proportion of combustion layer,porosity rate,temperature distribution,and image features obtained from the convolutional neural network,and outputs comprising quality indicators such as underburning index,uniformity index,and FeO content of the sinter.The accuracy is notably increased,achieving a 95.8%hit rate within an error margin of±1.0.After the system is applied,the average qualified rate of FeO content increases from 87.24%to 89.99%,representing an improvement of 2.75%.The average monthly solid fuel consumption is reduced from 49.75 to 46.44 kg/t,leading to a 6.65%reduction and underscoring significant energy saving and cost reduction effects. 展开更多
关键词 Sinter quality Convolutional neural network Long short-term memory Image segmentation FeO prediction
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LoRa Sense:Sensing and Optimization of LoRa Link Behavior Using Path-Loss Models in Open-Cast Mines
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作者 Bhanu Pratap Reddy Bhavanam Prashanth Ragam 《Computer Modeling in Engineering & Sciences》 SCIE EI 2025年第1期425-466,共42页
The Internet of Things(IoT)has orchestrated various domains in numerous applications,contributing significantly to the growth of the smart world,even in regions with low literacy rates,boosting socio-economic developm... The Internet of Things(IoT)has orchestrated various domains in numerous applications,contributing significantly to the growth of the smart world,even in regions with low literacy rates,boosting socio-economic development.This study provides valuable insights into optimizing wireless communication,paving the way for a more connected and productive future in the mining industry.The IoT revolution is advancing across industries,but harsh geometric environments,including open-pit mines,pose unique challenges for reliable communication.The advent of IoT in the mining industry has significantly improved communication for critical operations through the use of Radio Frequency(RF)protocols such as Bluetooth,Wi-Fi,GSM/GPRS,Narrow Band(NB)-IoT,SigFox,ZigBee,and Long Range Wireless Area Network(LoRaWAN).This study addresses the optimization of network implementations by comparing two leading free-spreading IoT-based RF protocols such as ZigBee and LoRaWAN.Intensive field tests are conducted in various opencast mines to investigate coverage potential and signal attenuation.ZigBee is tested in the Tadicherla open-cast coal mine in India.Similarly,LoRaWAN field tests are conducted at one of the associated cement companies(ACC)in the limestone mine in Bargarh,India,covering both Indoor-toOutdoor(I2O)and Outdoor-to-Outdoor(O2O)environments.A robust framework of path-loss models,referred to as Free space,Egli,Okumura-Hata,Cost231-Hata and Ericsson models,combined with key performance metrics,is employed to evaluate the patterns of signal attenuation.Extensive field testing and careful data analysis revealed that the Egli model is the most consistent path-loss model for the ZigBee protocol in an I2O environment,with a coefficient of determination(R^(2))of 0.907,balanced error metrics such as Normalized Root Mean Square Error(NRMSE)of 0.030,Mean Square Error(MSE)of 4.950,Mean Absolute Percentage Error(MAPE)of 0.249 and Scatter Index(SI)of 2.723.In the O2O scenario,the Ericsson model showed superior performance,with the highest R^(2)value of 0.959,supported by strong correlation metrics:NRMSE of 0.026,MSE of 8.685,MAPE of 0.685,Mean Absolute Deviation(MAD)of 20.839 and SI of 2.194.For the LoRaWAN protocol,the Cost-231 model achieved the highest R^(2)value of 0.921 in the I2O scenario,complemented by the lowest metrics:NRMSE of 0.018,MSE of 1.324,MAPE of 0.217,MAD of 9.218 and SI of 1.238.In the O2O environment,the Okumura-Hata model achieved the highest R^(2)value of 0.978,indicating a strong fit with metrics NRMSE of 0.047,MSE of 27.807,MAPE of 27.494,MAD of 37.287 and SI of 3.927.This advancement in reliable communication networks promises to transform the opencast landscape into networked signal attenuation.These results support decision-making for mining needs and ensure reliable communications even in the face of formidable obstacles. 展开更多
关键词 Internet of things long range wireless area network ZigBee mining environments path-loss models coefficient of determination mean square error
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Design of broadband achromatic far-infrared metalens based on chalcogenide glass using parameterized topology optimization
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作者 ZHOU Yun-fei ZOU Lin-er +1 位作者 CHENG Yang-bing SHEN Yun 《中国光学(中英文)》 北大核心 2025年第6期1475-1483,共9页
Metalens technology has been applied extensively in miniaturized and integrated infrared imaging systems.However,due to the high phase dispersion of unit structures,metalens often exhibits chromatic aberration,making ... Metalens technology has been applied extensively in miniaturized and integrated infrared imaging systems.However,due to the high phase dispersion of unit structures,metalens often exhibits chromatic aberration,making broadband achromatic infrared imaging challenging to achieve.In this paper,six different unit structures based on chalcogenide glass are constructed,and their phase-dispersion parameters are analyzed to establish a database.On this basis,using chromatic aberration compensation and parameterized adjoint topology optimization,a broadband achromatic metalens with a numerical aperture of 0.5 is designed by arranging these six unit structures in the far-infrared band.Simulation results show that the metalens achieves near diffraction-limited focusing within the operating wavelength range of 9−11μm,demonstrating the good performance of achromatic aberration with flat focusing efficiency of 54%−58%across all wavelengths. 展开更多
关键词 metalens chalcogenide glass topology optimization high efficiency long wave infrared broadband operation
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