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Interannual variability in soil respiration from terrestrial ecosystems in China and its response to climate change

Science China Earth Sciences 2012年第12期55卷 2091-2098页

作者： CHEN ShuTao HUANG Yao ZOU JianWen shi yanshu LU YanYu ZHANG Wen HU ZhengHua School of Environmental Science and Engineering Nanjing University oflnformation Science and TechnologyNanjing 210044China State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China State Key Laboratory of Vegetation and Environmental Change Institute of BotanyChinese Academy of SciencesBeijing 100093China Jiangsu Key Laboratory of Low Carbon Agriculture and GHGs Mitigation Nanjing Agricultural UniversityNanjing 210095China Anhui Climate Center Hefei 230031China

Soil respiration is an important process in terrestrial carbon *** terrestrial ecosystems in China, quantifying the spatiotemporal pattern of soil respiration at the regional scale is critical in providing a theoretical basis for evaluating carbon *** this study, we used an empirically based, semi-mechanistic model including climate and soil properties to estimate annual soil respiration from terrestrial ecosystems in China from 1970 to *** further analyzed the relationship between interannual variability in soil respiration and climatic factors (air temperature and precipitation).Results indicated that the distribution of annual soil respiration showed clear spatial *** highest and lowest annual soil respiration rates appeared in southeastern China and northwestern China, respectively, which was in accordance with the spatial patterns of mean annual air temperature and annual *** the mean annual air temperature in northwestern China was higher than that in some regions of northeastern china, a greater topsoil organic carbon storage in northeastern China might result in the higher annual soil respiration in this *** contrast, lower temperature, less precipitation and smaller topsoil organic carbon pool incurred the lowest annual soil respiration in northwestern *** soil respiration from terrestrial ecosystems in China varied from 4.58 to 5.19 PgCa-1 between 1970 and *** this time period, on average, annual soil respiration was estimated to be 4.83 PgCa-1 .Annual soil respiration in China accounted for 4.93%-6.01% of the global annual soil CO2 *** interannual variability in soil respiration depended on the interannual variability in precipitation and mean air *** order to reduce the uncertainty in estimating annual soil respiration at regional scale, more in situ measurements of soil respiration and relevant factors (***, soil and vegetation) should be made simultane

关键词： China soil respiration temporal variability climate

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Identification of miRNA signature associated with BMP2 and chemosensitivity of TMZ in glioblastoma stem-like cells

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Genes & Diseases 2020年第3期7卷 424-439页

作者： Xiaoyu Guo Ziguo Luo Tong Xia Lanxiang Wu yanshu shi Ying Li Life Science Institute Chongqing Medical UniversityChongqingChina Department of Radiology Southwest HospitalThird Military Medical UniversityChongqingChina

Glioblastoma multiform(GBM)is the most lethal intracranial tumor in *** stem-like cells(GSCs)are responsible for tumorigenesis and chemotherapy *** are known to increase temozolomide(TMZ)response in GSCs,however,the intracellular molecular mechanism remains largely *** this study,we built a GSC cell model called U87S,and performed RNA sequencing to identify differentially expressed(DE)miRNA profiles in U87S cells treated with BMP2,TMZ or combined BMP2 and TMZ *** analysis revealed that most DE miRNAs were involved in the cancer pathways,suggesting their crucial roles in *** miRNAs from RNA-seq were *** out of these miRNAs(has-miR-199a-3p,hsa-miR-374b-5p,hsa-miR-320d,and hsa-miR-339-5p)were found significantly up-regulated in GBM tumor *** of them,hsa-miR-199a-3p,was significantly correlated with the survival of GBM patients,and differentially expressed in U87S *** of hsa-miR-199a-3p was up-regulated by *** of hsa-miR-199a-3p in U87S cells inhibited cell viability and enhanced the cytotoxicity of *** activation of BMP boosted the effect of hsa-miR-199a-3p on cell viability and TMZmediated ***,expressions of five predicted targets of hsa-miR-199a-3p were *** of them were differentially expressed in GBM *** one of them,SLC22A18,was associated with the survival of GBM *** the end,a hsa-miR-199a-3pmediated ceRNA network was constructed for the convenience of future ***,our data provided DE miRNA expression profiles associated with BMP2 and TMZ in GSCs,which might lead to finding out miRNA-based target therapies that specially target GSCs.

关键词： BMP2 Cancer stem cell CeRNA Gliobalstoma RNA-seq TMZ

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上海地区单季晚稻生长期降水量对产量的影响及产量预估

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气候与环境研究 2021年第5期26卷 583-590页

作者：史艳姝李军谈建国吴蔚辛跳儿周宇上海市气候中心上海200030 中国气象局上海城市气候变化应对重点开放实验室上海200030

为探索上海地区单季晚稻生长期内降水量分配对产量的影响。采用降水集中度(Precipitation Concentration Degree,PCD)和集中期(Precipitation Concentration Period,PCP)研究1971~2015年单季晚稻全生育期内降水非均匀分布特征,运用趋势... 详细信息

为探索上海地区单季晚稻生长期内降水量分配对产量的影响。采用降水集中度(Precipitation Concentration Degree,PCD)和集中期(Precipitation Concentration Period,PCP)研究1971~2015年单季晚稻全生育期内降水非均匀分布特征,运用趋势分析法研究单季晚稻全生育期降水分配情况及各生育期降水量与产量之间的关系,基于CMIP5全球气候模式情景下降水预估资料,估算2020~2045年上海地区单季晚稻生长期降水量对气象产量影响变化。结果表明:近45年单季晚稻生长季PCD变化趋势不显著,降水分布不均匀,PCP主要集中在7月27日至9月11日,即孕穗期和抽穗期;在分蘖期的降水量占全生育期总量的29.9%,孕穗期占26.2%,抽穗期占7.1%,成熟期占10.8%,分蘖期和孕穗期降水占全生育期的1/2以上;孕穗期降水量与单季晚稻气象产量的负相关关系达显著水平(p<0.05);未来30年内降水量对单季晚稻气象产量的负效应略大于正效应,即减产作用大于增产作用。未来气候变化情景下单季晚稻生长期内降水量的变化对产量有影响,应制定相应的适应措施。

关键词：上海降水量单季晚稻产量预估

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Joint Feature Encoding and Task Alignment Mechanism for Emotion-Cause Pair Extraction

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Computers, Materials & Continua 2025年第1期82卷 1069-1086页

作者： shi Li Didi Sun College of Computer and Control Engineering Northeast Forestry UniversityHarbin150040China

With the rapid expansion of social media,analyzing emotions and their causes in texts has gained significant ***-cause pair extraction enables the identification of causal relationships between emotions and their triggers within a text,facilitating a deeper understanding of expressed sentiments and their underlying *** comprehension is crucial for making informed strategic decisions in various business and societal ***,recent research approaches employing multi-task learning frameworks for modeling often face challenges such as the inability to simultaneouslymodel extracted features and their interactions,or inconsistencies in label prediction between emotion-cause pair extraction and independent assistant tasks like emotion and cause *** address these issues,this study proposes an emotion-cause pair extraction methodology that incorporates joint feature encoding and task alignment *** model consists of two primary components:First,joint feature encoding simultaneously generates features for emotion-cause pairs and clauses,enhancing feature interactions between emotion clauses,cause clauses,and emotion-cause ***,the task alignment technique is applied to reduce the labeling distance between emotion-cause pair extraction and the two assistant tasks,capturing deep semantic information interactions among *** proposed method is evaluated on a Chinese benchmark corpus using 10-fold cross-validation,assessing key performance metrics such as precision,recall,and F1 *** results demonstrate that the model achieves an F1 score of 76.05%,surpassing the state-of-the-art by 1.03%.The proposed model exhibits significant improvements in emotion-cause pair extraction(ECPE)and cause extraction(CE)compared to existing methods,validating its *** research introduces a novel approach based on joint feature encoding and task alignment mechanisms,contributing to advancements in emotion-c

关键词： Emotion-cause pair extraction interactive information enhancement joint feature encoding label consistency task alignment mechanisms

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Detection and Recognition of Spray Code Numbers on Can Surfaces Based on OCR

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Computers, Materials & Continua 2025年第1期82卷 1109-1128页

作者： Hailong Wang Junchao shi School of Computer Science Zhongyuan University of TechnologyZhengzhou450007China

A two-stage algorithm based on deep learning for the detection and recognition of can bottom spray codes and numbers is proposed to address the problems of small character areas and fast production line speeds in can bottom spray code number *** the coding number detection stage,Differentiable Binarization Network is used as the backbone network,combined with the Attention and Dilation Convolutions Path Aggregation Network feature fusion structure to enhance the model detection *** terms of text recognition,using the Scene Visual Text Recognition coding number recognition network for end-to-end training can alleviate the problem of coding recognition errors caused by image color distortion due to variations in lighting and background *** addition,model pruning and quantization are used to reduce the number ofmodel parameters to meet deployment requirements in resource-constrained environments.A comparative experiment was conducted using the dataset of tank bottom spray code numbers collected on-site,and a transfer experiment was conducted using the dataset of packaging box production *** experimental results show that the algorithm proposed in this study can effectively locate the coding of cans at different positions on the roller conveyor,and can accurately identify the coding numbers at high production line *** Hmean value of the coding number detection is 97.32%,and the accuracy of the coding number recognition is 98.21%.This verifies that the algorithm proposed in this paper has high accuracy in coding number detection and recognition.

关键词： Can coding recognition differentiable binarization network scene visual text recognition model pruning and quantification transport model

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长江下游地区作物生长季水分资源变化特征及影响分析——以上海地区为例

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中国农学通报 2019年第15期35卷 40-48页

作者：史艳姝李军辛跳儿周坤上海市气候中心上海200030

文章旨在合理利用水稻生长季的农业气候资源,提高农业气象防灾减灾能力。利用1961—2015年上海地区10个气象站逐日降水资料,应用降水集中度和降水集中期的概念分析了上海地区单季晚稻生长季水分资源变化规律、特征和分布条件。结果表明:... 详细信息

文章旨在合理利用水稻生长季的农业气候资源,提高农业气象防灾减灾能力。利用1961—2015年上海地区10个气象站逐日降水资料,应用降水集中度和降水集中期的概念分析了上海地区单季晚稻生长季水分资源变化规律、特征和分布条件。结果表明:近55年单季晚稻生长季年降水量呈增加趋势,降水线性倾向率是33.6/10 a;大雨和暴雨量级增长趋势明显,平均每10年分别增加33.6 mm和32.0 mm。降水日数变化趋势不明显,与不同降水量级之间存在着明显的反相关;年降水量与降水日数之间变化特征一致,存在同步性(通过0.01显著性水平检验)。降水量变异系数在1995—1997年、2008—2010年和2011—2013年的年份间数值较小,3年平均降水相对变率呈持续上升趋势。PCD变化趋势不显著,降水分布不均匀,PCP主要集中在6月19日—8月7日,均值在7月14日。研究结果为单季晚稻生长季水分资源利用,应对气候变化提供科学参考。

关键词：长江下游单季晚稻生长季水分资源

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The pivotal role of microglia in injury and the prognosis of subarachnoid hemorrhage

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Neural Regeneration Research 2025年第7期20卷 1829-1848页

作者： Wenjing Ning shi Lv Qian Wang Yuzhen Xu Department of Rehabilitation The Second Affiliated Hospital of Shandong First Medical UniversityTaianShandong ProvinceChina Department of Central Laboratory The Affiliated Taian City Central Hospital of Qingdao UniversityTaianShandong ProvinceChina

Subarachnoid hemorrhage leads to a series of pathological changes,including vascular spasm,cellular apoptosis,blood–brain barrier damage,cerebral edema,and white matter ***,which are the key immune cells in the central nervous system,maintain homeostasis in the neural environment,support neurons,mediate apoptosis,participate in immune regulation,and have neuroprotective *** evidence has shown that microglia play a pivotal role in the pathogenesis of subarachnoid hemorrhage and affect the process of injury and the prognosis of subarachnoid ***,microglia play certain neuroprotective roles in the recovery phase of subarachnoid *** approaches aimed at modulating microglia function are believed to attenuate subarachnoid hemorrhage *** provides new targets and ideas for the treatment of subarachnoid ***,an in-depth and comprehensive summary of the role of microglia after subarachnoid hemorrhage is still *** review describes the activation of microglia after subarachnoid hemorrhage and their roles in the pathological processes of vasospasm,neuroinflammation,neuronal apoptosis,blood–brain barrier disruption,cerebral edema,and cerebral white matter *** also discusses the neuroprotective roles of microglia during recovery from subarachnoid hemorrhage and therapeutic advances aimed at modulating microglial function after subarachnoid ***,microglia in subarachnoid hemorrhage are targeted with TLR inhibitors,nuclear factor-κB and STAT3 pathway inhibitors,glycine/tyrosine kinases,NLRP3 signaling pathway inhibitors,Gasdermin D inhibitors,vincristine receptorαreceptor agonists,ferroptosis inhibitors,genetic modification techniques,stem cell therapies,and traditional Chinese ***,most of these are still being evaluated at the laboratory *** clinical studies and data on subarachnoid hemorrhage are required to improve the treatment of subarachnoid hemor

关键词： apoptosis blood–brain barrier brain edema microglia neuroinflammation neuron neuroprotection subarachnoid hemorrhage vasoconstriction white matter injury

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Low-temperature chlorination roasting technology for the simultaneous recovery of valuable metals from spent LiCoO_(2)cathode material

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 80-91页

作者： Junjie shi Changle Hou Jingjing Dong Dong Chen Jianzhong Li Key Laboratory for Ecological Metallurgy of Multimetallic Mineral(Ministry of Education) Northeastern UniversityShenyang 110819China School of Metallurgy Northeastern UniversityShenyang 110819China

With the continuous increase in the disposal volume of spent lithium-ion batteries(LIBs),properly recycling spent LIBs has become essential for the advancement of the circular *** study presents a systematic analysis of the chlorination roasting kinetics and proposes a new two-step chlorination roasting process that integrates thermodynamics for the recycling of LIB cathode *** activation energy for the chloride reaction was 88.41 kJ/mol according to thermogravimetric analysis–derivative thermogravimetry data obtained by using model-free,model-fitting,and Z(α)function(αis conversion rate).Results indicated that the reaction was dominated by the first-order(F1)model when the conversion rate was less than or equal to 0.5 and shifted to the second-order(F2)model when the conversion rate exceeded *** conditions were determined by thoroughly investigating the effects of roasting temperature,roasting time,and the mass ratio of NH_(4)Cl to LiCoO_(2).Under the optimal conditions,namely 400℃,20 min,and NH_(4)Cl/LiCoO_(2)mass ratio of 3:1,the leaching efficiency of Li and Co reached 99.43% and 99.05%,*** of the roasted products revealed that valuable metals in LiCoO_(2)transformed into CoCl_(2) and ***,the reaction mechanism was elucidated,providing insights for the establishment of a novel low-temperature chlorination roasting technology based on a crystal structure *** technology can guide the development of LIB recycling processes with low energy consumption,low secondary pollution,high recovery efficiency,and high added value.

关键词： spent lithium-ion battery thermodynamics chlorination roasting kinetics circular economy

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Effect of pyrite content on chalcopyrite flotation under different regrinding conditions

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 49-57页

作者： Zejun Wang Qing shi Guofan Zhang Yuxuan Zhu Binbin Li School of Minerals Processing and Bioengineering Central South UniversityChangsha 410083China Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources Central South UniversityChangsha 410083China

This study aimed to investigate the effect of varying pyrite(Py)content on copper(Cu)in the presence of different regrinding conditions,which were altered using different types of grinding media:iron,ceramic balls,and their mixture,followed by flotation in the cleaner *** flotation performance of rough Cu concentrate can be improved by changing the regrinding conditions based on the Py *** electron microscopy,X-ray spectrometry,ethylenediaminetetraacetic acid disodium salt extraction,and X-ray photoelectron spectroscopy studies illustrated that when the Py content was high,the use of iron media in regrinding promoted the generation of hydrophilic Fe OOH on the surface of Py and improved the Cu *** ceramic medium with a low Py content prevented excessive Fe OOH from covering the surface of chalcopyrite(Cpy).Electrochemical studies further showed that the galvanic corrosion current of Cpy-Py increased with the addition of Py and became stronger with the participation of iron media.

关键词： chalcopyrite regrinding media pyrite galvanic corrosion flotation

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Prediction and optimization of flue pressure in sintering process based on SHAP

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 346-359页

作者： Mingyu Wang Jue Tang Mansheng Chu Quan shi Zhen Zhang School of Metallurgy Northeastern UniversityShenyang 110819China Liaoning Low-Carbon Steelmaking Technology Engineering Research Center Northeastern UniversityShenyang 110819China Engineering Research Center of Frontier Technologies for Low-Carbon Steelmaking(Ministry of Education) Shenyang 110819China

Sinter is the core raw material for blast *** pressure,which is an important state parameter,affects sinter *** this paper,flue pressure prediction and optimization were studied based on the shapley additive explanation(SHAP)to predict the flue pressure and take targeted adjustment ***,the sintering process data were collected and processed.A flue pressure prediction model was then constructed after comparing different feature selection methods and model algorithms using SHAP+extremely random-ized trees(ET).The prediction accuracy of the model within the error range of±0.25 kPa was 92.63%.SHAP analysis was employed to improve the interpretability of the prediction *** effects of various sintering operation parameters on flue pressure,the relation-ship between the numerical range of key operation parameters and flue pressure,the effect of operation parameter combinations on flue pressure,and the prediction process of the flue pressure prediction model on a single sample were analyzed.A flue pressure optimization module was also constructed and analyzed when the prediction satisfied the judgment *** operating parameter combination was then *** flue pressure was increased by 5.87%during the verification process,achieving a good optimization effect.

关键词： sintering process flue pressure shapley additive explanation prediction optimization

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