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Nano-Micro Letters 2024年第9期16卷 432-448页

作者： Yirong wang Yaohui Cheng Chunchun Yin Jinming Zhang Jingxuan You Jizheng wang jinfeng wang Jun Zhang Institute of Chemistry Chinese Academy of Sciences(CAS)Beijing 100190People’s Republic of China University of Chinese Academy of Sciences Beijing 100049People’s Republic of China Nanjing University Nanjing 210023People’s Republic of China Wuhan Textile University Wuhan 430200People’s Republic of China

In perovskite solar cells(PSCs),the inherent defects of perovskite film and the random distribution of excess lead iodide(PbI_(2))prevent the improvement of efficiency and ***,natural cellulose is used as the raw material to design a series of cellulose derivatives for perovskite crystallization *** cationic cellulose derivative C-Im-CN with cyano-imidazolium(Im-CN)cation and chloride anion prominently promotes the crystallization process,grain growth,and directional orientation of ***,excess PbI_(2)is transferred to the surface of perovskite grains or formed plate-like crystallites in local *** effects result in suppressing defect formation,decreasing grain boundaries,enhancing carrier extraction,inhibiting non-radiative recombination,and dramatically prolonging carrier ***,the PSCs exhibit a high power conversion efficiency of 24.71%.Moreover,C-Im-CN has multiple interaction sites and polymer skeleton,so the unencapsulated PSCs maintain above 91.3%of their initial efficiencies after 3000 h of continuous operation in a conventional air atmosphere and have good stability under high humidity *** utilization of biopolymers with excellent structure-designability to manage the perovskite opens a state-of-the-art avenue for manufacturing and improving PSCs.

关键词： Perovskite Solar cells Defect passivation Biomass additives Crystal orientation

C14-HSL limits the mycelial morphology of pathogen Trichosporon cells but enhances their aggregation:Mechanisms and implications

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Chinese Chemical Letters 2024年第6期35卷 398-403页

作者： Xin Lu Haoran Sun Xiaomeng Li Chunrui Li jinfeng wang Dandan Zhou Jilin Engineering Lab for Water Pollution Control and Resources Recovery School of the EnvironmentNortheast Normal UniversityChangchun 130117China State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing UniversityNanjing 210023China

The biosecurity hazards caused by pathogenic fungus have been widely *** the long-term coexistence of eukaryotic pathogens and quorum sensing bacteria in different habitats in environments,we hypothesized that they have social interactions via signal *** this work,we firstly discovered the well-known bacterial signal molecules play an adverse role in the cell morphology and metabolism in a model pathogen Trichosporon asahii.N-Tetradecanoyl-L-homoserine lactone(C14-HSL)was discovered to increase pathogen hazards of ***,which limited mycelium by 52%,but enhanced cell aggregation by 93%.Higher fluorescence intensity of tryptophan(59%)and aromatic protein(2-fold)contents after the treatment of C14-HSL,indicating that aromatic proteins helped aggregate Trichosporon and showed *** analysis revealed that C14-HSL upregulated the shikimate pathway(above1-fold)located in downstream of tricarboxylic acid cycle,which contributed to the synthesis of more aromatic proteins and the formation of larger *** limited mycelial growth of *** attributed to the up-regulated expressions of cell cycle *** fungal transboundary response to bacterial C14-HSL was controlled by signal transduction *** study provides new insights into the co-evolution of bacterial and pathogenic fungi in microecosystems.

关键词： Bacterial C14-HSL Mycelium Cell cycle Aggregation Aromatic proteins

Straw return decreases polycyclic aromatic hydrocarbon (PAH) accumulation in winter wheat and human health risk by enhancing PAH dissipation in rhizosphere soil

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Pedosphere 2024年第4期34卷 699-708页

作者： Jun CAI He ZHANG Xiangyao WU Yifan LIU Yunmei WU jinfeng wang Chuangye ZHANG Benhua SUN Fuyong WU College of Natural Resources and Environment Northwest A&F UniversityYangling 712100China Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China Ministry of AgricultureYangling 712100China

Straw return in situ,a common agronomic measure in China,has been widely used not only to increase crop yields and improve soil nutrients but also to remove polycyclic aromatic hydrocarbons(PAHs)from agricultural ***,the safety risks of food crops(i.e.,human health risk of wheat grains)grown in PAHs-contaminated agricultural soils amended with crop straw remain uncertain.A pot experiment was conducted in a PAHs-contaminated agricultural soil cultivated with winter wheat under different ratios of corn straw addition(0%(control,CK),1%,2.5%,and 5%,weight/weight).Results showed that corn straw addition significantly(P<0.05)decreased PAH concentrations in rhizosphere soil,roots,straws,and grains by 48.32%–50.01%,11.85%–42.67%,9.78%–28.03%,and 14.16%–31.67%,respectively,compared with CK,whereas the transfer factors of PAHs from roots to straws were significantly(P<0.05)increased.A correlation heatmap showed that PAH concentrations in roots,straws,and grains were positively(P<0.01)correlated with those in rhizosphere *** indicated that corn straw decreased PAH accumulation in winter wheat due to the increase of PAH dissipation in the rhizosphere soil,although it enhanced PAH transfer in winter *** incremental lifetime cancer risk(ILCR)model indicated that corn straw significantly(P<0.05)decreased the human health risk of winter wheat grains by 29.73%–45.05%.Overall,corn straw apparently reduced PAH accumulation in winter wheat,ecological risk,and human health risk via enhancing PAH dissipation in the rhizosphere *** findings provide an important scientific basis and theoretical guidance for agricultural safety production.

关键词： corn straw addition ecological risk food crops incremental lifetime cancer risk transfer factor

Research and Application of Multi-level Diverse Intelligent Algorithm Library Based on Artificial Intelligence Computing Platform

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IJLAI Transactions on Science and Engineering

IJLAI Transactions on Science and Engineering 2024年第3期2卷 58-65页

作者： Xiwei Xu jinfeng wang School of Information Engineering Weifang Vocational College Weifang 261000 China

At present,artificial intelligence computing platforms are usually based on cloud hosts for services,which have the characteristics of fast training speed and a wide variety of model ***,the online models of such platforms mostly adopt the form of downloading model files,which is difficult to integrate into traditional software system *** response to existing problems,this paper takes the relevant theoretical technologies of next-generation intelligent computing platforms as the development framework,and conducts research on the diversity of multi-level intelligent computing requirements,by implementing a universal algorithm model construction and automatic integration mechanism;Build a multi domain and multi-level application algorithm library for different application scenarios;Design a personalized algorithm recommendation based on knowledge reasoning and object-oriented approach,and build an emerging intelligent computing platform for analyzing and understanding real-world data,meeting the needs of complex engineering application software such as heavy backend,light frontend,loose coupling,microservices,etc.,providing theoretical and technical support for innovative big data services and applications with diverse computing requirements.

关键词： Artificial intelligence Computing platform Automatic integration Multi-level Algorithm recommendation

Long-term glacier variations and the response to climate fluctuation in Qilian Mountains,China

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Journal of Geographical Sciences 2024年第10期34卷 1904-1924页

作者： wang Sheng wang Jianwen ZHU Meilin YAO Tandong PU Jianchen wang jinfeng College of Geography Science Shanxi Normal UniversityTaiyuan 030000China Center for the Pan-Third Pole Environment Lanzhou UniversityLanzhou 730000China Key Laboratory of Tibetan Environment Changes and Land Surface Processes Institute of Tibetan Plateau ResearchCASBeijing 100101China State Key Laboratory of Cryospheric Sciences Northwest Institute of Eco-environment and ResourcesCASLanzhou 730000China

Glaciers are considered to be‘climate-sensitive indicators'and‘solid reservoirs',and their changes significantly impact regional water *** mass balance(MB)from 2011 to 2020 of the Qiyi Glacier in the northeast Tibetan Plateau is presented based on field *** glacier showed a persistent negative balance over 9 years of in-situ observations,with a mean MB of-0.51 m ***^(-1).The distributed energy-mass balance model was used for glacier MB reconstruction from 1980 to *** daily meteorological data used in the model were from HAR v2 reanalysis data,with automatic weather stations located in the middle and upper parts of the glacier used for deviation *** average MB over the past 40 years of the Qiyi Glacier was -0.36 m ***^(-1)with the mass losses since the beginning of the 21st century,being greater than those in the *** glacier runoff shows a significant increasing trend,contributing~81% of the downstream river *** albedo disparity indicates that the net shortwave radiation is much higher in the ablation zone than in the accumulation zone,accelerating ablation-area expansion and glacier mass *** MB of the Qiyi Glacier is more sensitive to temperature and incoming shortwave radiation variation than *** MB presented a non-linear reaction to the temperature and incoming shortwave *** future climate warming,the Qiyi Glacier will be increasingly likely to deviate from the equilibrium state,thereby exacerbating regional water balance *** is found that the mass losses of eastern glaciers are higher than those of western glaciers,indicating significant spatial heterogeneity that may be attributable to the lower altitude and smaller area distribution of the eastern glaciers.

关键词： glacier mass balance energy-mass balance model hydrology Qilian Mountains

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中国新诗在海外英语世界传播研究的路径反思

华中师范大学学报（人文社会科学版） 2024年第5期63卷 116-125页

作者：王金凤华中师范大学文学院湖北武汉430079

中国新诗在海外英语世界的传播已有九十余年的历程,近年来,中国新诗在海外英语世界的传播研究整体逐渐呈现难以系统推进的趋势。中国新诗在海外英语世界传播的时间跨度长、空间范围广、体量大,给诗学传播的言说路径带来了挑战;诗歌属性... 详细信息

中国新诗在海外英语世界的传播已有九十余年的历程,近年来,中国新诗在海外英语世界的传播研究整体逐渐呈现难以系统推进的趋势。中国新诗在海外英语世界传播的时间跨度长、空间范围广、体量大,给诗学传播的言说路径带来了挑战;诗歌属性等重要观点的论争、传播史料考证以及史料的现代阐释等问题,亦引发研究路径的反思。首先,本体与现象内外结合的研究路径,反映了诗学传播研究的内外划分理念,尽管这种研究路径对诗歌文体要素的开掘还不足,但其对中国新诗在英语世界的可译性、如何译等问题中的文体要素的关注具有良好的开端作用。其次,诗学论争与广义式实证的研究路径,体现了对中国新诗西方传播基础理论层面和实证研究的重视,但是也难免会局限研究的问题域,束缚诗学规律的探寻。再次,史料爬梳与散点分析的研究路径,显示了基础性研究路径的基石作用,但是这种在起点上的徘徊也不免会限制研究主体的研究视域及路径思索。接续三种研究路径,进一步挖掘诗学传播与数智人文以及其他学科的研究智慧和潜力,探索既有诗学意蕴又有创新性的多元路径,或许能够破解中国新诗在海外英语世界传播研究的困局,打开新的诗学研究空间。

关键词：中国新诗传播研究路径反思

基于处方图的水稻侧深变量施肥控制系统设计与试验

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农业机械学报 2024年第9期55卷 151-162页

作者：王金峰吕振阳赵敏义王震涛东北农业大学工程学院哈尔滨150030

为解决水稻侧深施肥过程中由于缺乏科学处方与智能决策而造成的肥料资源浪费、无法实现空间差异化肥力补给的问题,本文设计了一种基于处方图的水稻侧深变量施肥控制系统。结合排肥理论分析得出变量施肥作业中影响排肥量的可控因素(排肥... 详细信息

为解决水稻侧深施肥过程中由于缺乏科学处方与智能决策而造成的肥料资源浪费、无法实现空间差异化肥力补给的问题,本文设计了一种基于处方图的水稻侧深变量施肥控制系统。结合排肥理论分析得出变量施肥作业中影响排肥量的可控因素(排肥轴转速、外槽轮工作长度、机组前进速度),探究施肥控制策略,构建并训练基于神经网络的智能决策模型;利用土壤养分平衡法结合克里金空间插值法在ArcGIS中生成施肥处方图;最后设计水稻侧深变量施肥控制系统并集成到水稻插秧机上,开展性能测试试验。双变量控制模型肥量控制精度试验结果表明,最大排肥误差为3.27%,最小误差为0.06%,总平均误差为1.23%。目标施肥量播量准确性试验结果表明,尿素、磷酸二胺、硫酸钾、掺混复合肥平均播量误差分别为4.60%、4.41%、4.18%和3.66%,平均示量误差分别为5.04%、4.83%、3.81%和4.84%。基于电子处方图的田间试验中系统获取有效定位信息54867个,定位错误点数6个,均发生在田块边界附近,分区定点变量施肥平均播量误差为4.23%。结果表明集成创制的水稻插秧侧深变量施肥一体机具有较高的播量精度和稳定性,控制系统具有较高的肥量控制精度,利用电子处方图指导施肥作业切实可靠,可实现插秧智能变量施肥一体化作业。

关键词：水稻侧深变量施肥处方图双变量控制智能决策

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导电纱线及柔性传感器耐久性影响因素研究

丝绸 2024年第1期61卷 52-60页

作者：郑姿辰唐宁王金凤浙江理工大学纺织科学与工程学院(国际丝绸学院) 杭州310018 浙江省产业纺织材料制备技术研究重点实验室杭州310018

为了探究影响导电纱线及柔性传感器耐久性的因素,本文选取5种典型金属导电纱线,首先分析洗涤次数、热定型温度及氧化时间对其电阻的影响。然后,以77 dtex镀银导电纱线织造不同尺寸的柔性传感器,进行30次洗涤测试,并用活性藏青BF-DB进行... 详细信息

为了探究影响导电纱线及柔性传感器耐久性的因素,本文选取5种典型金属导电纱线,首先分析洗涤次数、热定型温度及氧化时间对其电阻的影响。然后,以77 dtex镀银导电纱线织造不同尺寸的柔性传感器,进行30次洗涤测试,并用活性藏青BF-DB进行染色处理,以此分析洗涤和染色对传感器性能的影响。结果表明:三种因素对铜纤维的导电性能影响最大,而对铜丝和不锈钢导电纱线的导电性能影响最小,其耐洗涤性、耐热性及抗氧化性能良好。锦纶基镀银导电纱线电阻随着热定型温度的增大而减小,长度缩短;洗涤次数增加,其电阻有一定程度增大;氧化处理20 d后导电性能明显减弱。镀银导电纱编织的柔性传感器较耐洗涤,染色处理后其尺寸变小,但能维持稳定的导电性。

关键词：导电纱线柔性传感器洗涤热定型氧化染色耐久性导电性能

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黄河流域国家级自然保护区生态系统服务功能评估

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北京林业大学学报 2024年第7期46卷 90-100页

作者：王金凤徐洁徐基良安丽丹北京林业大学生态与自然保护学院北京100083 国家林业和草原局国家公园(自然保护地)发展中心北京100714

【目的】研究黄河流域国家级自然保护区生态系统服务功能的时空变化特征,为制定有效的生态保护策略提供科学依据。【方法】以黄河流域国家级自然保护区为研究对象,采用InVEST模型,分析并评估其水源供给、土壤保持、碳储存和生境质量4项... 详细信息

【目的】研究黄河流域国家级自然保护区生态系统服务功能的时空变化特征,为制定有效的生态保护策略提供科学依据。【方法】以黄河流域国家级自然保护区为研究对象,采用InVEST模型,分析并评估其水源供给、土壤保持、碳储存和生境质量4项生态系统服务功能。【结果】(1)2000—2020年,黄河流域国家级自然保护区的水源供给量和平均生境质量指数呈现出先减少后增加的变化,土壤保持量表现为逐期下降,碳密度随着时间的推移先增加后减少。降水和土地覆被变化是影响生态系统服务功能变化的主要因素。(2)受黄河流域地区城市化快速发展的影响,国家级自然保护区的综合生态系统服务功能随时间推移逐渐减弱,在空间上表现为从黄河流域上游向下游逐渐增强。【结论】面对黄河流域的复杂生态环境风险问题,建议强化全流域的水资源管理,合理开发利用土地资源以提高土地利用效益。注重植被保护和自然恢复,完善全流域的生态补偿机制,并采取因地制宜的保护措施。通过这些措施,以促进区域生态环境和经济社会协调可持续发展。

关键词：生态系统服务功能国家级自然保护区黄河流域 InVEST模型

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针织物的感温变色涂层整理及性能研究

丝绸 2024年第2期61卷 67-75页

作者：张传茹刘怡君王金凤浙江理工大学纺织科学与工程学院(国际丝绸学院) 杭州310018

为了使人体温度变化可视化,设计开发了智能温度监测变色织物。选择云母改性凉感涤纶长丝编织三种不同组织结构的针织物作为基布并对其进行感温变色涂层整理。采用2种不同变色温度及变色效果的可逆温敏变色粉末,与水性聚氨酯、增稠剂等... 详细信息

为了使人体温度变化可视化,设计开发了智能温度监测变色织物。选择云母改性凉感涤纶长丝编织三种不同组织结构的针织物作为基布并对其进行感温变色涂层整理。采用2种不同变色温度及变色效果的可逆温敏变色粉末,与水性聚氨酯、增稠剂等按一定比例制成变色涂料,将其涂覆在织物表面得到不同温度范围的变色织物。分析水性聚氨酯质量分数、烘干温度及烘干时间对变色织物的色牢度、透气性等性能的影响,并探究不同组织结构对变色效果、响应速度等变色性能的影响。结果表明:面密度越大,织物的响应速度越慢,透气率略有下降;水性聚氨酯质量分数达到60%,烘干温度90℃,烘干时间7 min时,织物的色牢度最好;以凉感纬平针织物作为基底时,织物的变色性能及服用性能综合效果最佳。

关键词：温致变色多阶段变色 HSB色彩模型透气性响应速度色牢度