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Journal of Oceanology and limnology 2024年第5期42卷 1634-1650页

作者： Ming CONG Zhaoshun lI Wenwen TIAN Yuanmei lI jiasen lü School of Ocean Yantai UniversityYantai 264005China School of life Sciences Yantai UniversityYantai 264005China

Previous studies have revealed that ammonia nitrogen has several adverse effects on clam Ruditapes ***,knowledge is lacking regarding the related proteins involved in the toxicological responses,which is vital to elucidate the underlying mechanism of ammonia *** this study,clams *** were exposed to ammonia nitrogen for 21 d at two environmentally relevant *** tandem mass tags approach(TMT)was applied to assay the differentially expressed proteins(DEPs)in clam gill tissues on the 3 rd and 21 st ***,a total of 7263 proteins were *** analyses revealed that clam protein profiles changed in dose-and time dependent manner after ammonia nitrogen *** inferred that the clams may face heavy challenges after ammonia exposure,such as unbalanced gender ratio,lysosomal disease,energy lack,neurological disorders,altered glutamine metabolism,increased lipid synthesis,and impaired *** profiles of enzyme activities of glutaminase and glutamine synthase provided direct evidence to verify the related inference from proteome *** of the inferred toxic effects merit further *** study identified important proteins related to ammonia nitrogen toxicity in the clam and indicated the severe stress of marine ammonia pollution on the healthy development of mollusc aquaculture.

关键词： ammonia nitrogen Ruditapes philippinarum proteomic analysis toxicity

Image-Based Flow Prediction of Vocal Folds Using 3D Convolutional Neural Networks

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Journal of Bionic Engineering 2024年第2期21卷 991-1002页

作者： Yang Zhang Tianmei Pu jiasen Xu Chunhua Zhou College of Astronautics Nanjing University of Aeronautics and AstronauticsNanjing210016China College of Electrical Energy and Power EngineeringYangzhou UniversityYangzhou225127China College of Aeronautics Nanjing University of Aeronautics and AstronauticsNanjing210016China

In this work,a three dimensional(3D)convolutional neural network(CNN)model based on image slices of various normal and pathological vocal folds is proposed for accurate and efficient prediction of glottal *** 3D CNN model is composed of the feature extraction block and regression *** feature extraction block is capable of learning low dimensional features from the high dimensional image data of the glottal shape,and the regression block is employed to flatten the output from the feature extraction block and obtain the desired glottal flow *** input image data is the condensed set of 2D image slices captured in the axial plane of the 3D vocal folds,where these glottal shapes are synthesized based on the equations of normal vibration *** output flow data is the corresponding flow rate,averaged glottal pressure and nodal pressure distributions over the glottal *** 3D CNN model is built to establish the mapping between the input image data and output flow *** ground-truth flow variables of each glottal shape in the training and test datasets are obtained by a high-fidelity sharp-interface immersed-boundary *** proposed model is trained to predict the concerned flow variables for glottal shapes in the test *** present 3D CNN model is more efficient than traditional Computational Fluid Dynamics(CFD)models while the accuracy can still be retained,and more powerful than previous data-driven prediction models because more details of the glottal flow can be *** prediction performance of the trained 3D CNN model in accuracy and efficiency indicates that this model could be promising for future clinical applications.

关键词： Vocal folds Computational fluid dynamics Machine learning 3D convolutional neural network

Manufacturer encroachment and carbon reduction decisions considering cap-and-trade policy and retailer investment

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Frontiers of Engineering Management 2024年第2期11卷 326-344页

作者： Pengpeng YUAN jiasen SUN Dmitry IVANOV Business School and Dongwu Think Tank Soochow UniversitySuzhou 235031China Berlin School of Economics and law Berlin 999035Germany

low-carbon regulation and market competition present new opportunities and challenges for supply chain firms,emphasizing the significance of carbon reduction and channel encroachment in enhancing *** study formulates various game models to evaluate manufacturers’encroachment strategies(with or without encroachment)under different conditions of low-carbon investment by *** investigates the operational decisions and carbon abatement strategies of firms under various *** findings reveal that encroachment elevates unit abatement levels but decreases wholesale prices and retailer profits when unit encroachment costs are below certain *** contrast,the manufacturer consistently benefits from channel ***-initiated low-carbon investments can motivate manufacturers to reduce emissions.A lower carbon price potentially offers financial advantages to retailer engaging in such ***,the likelihood of reduced environmental damage postchannel encroachment,compared to preprofessional encroachment,increases when the retailer invests in low-carbon *** retailer’s profit is inversely related to the carbon price,and a higher carbon price can strengthen the incentive effect of low-carbon investment on the manufacturer’s abatement endeavors.

关键词： carbon cap-and-trade channel encroachment emission reduction low-carbon investment

Highly efficient through-space charge transfer TADF molecule employed in TADF-and TADF-sensitized organic light-emitting diodes

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Science China Chemistry 2024年第4期67卷 1270-1276页

作者： jiasen Zhang Deli li Wei li Yujie Wu Xilin Mu Chunyu liu Kaibo Fang Ziyi Ge Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China State Key laboratory of luminescent Materials and Devices and Institute of Polymer Optoelectronic Materials and Devices South China University of TechnologyGuangzhou 510640China

The inception and harnessing of excitons are paramount for the electroluminescence performance of organic light-emitting devices(OlEDs).Through-space charge transfer(TSCT)via intramolecular interaction has proved to be one of the most potent techniques employed to achieve 100% internal quantum ***,molecular strategies utilized to comprehensively enhance the electroluminescent performance of TSCT emitters regarding improving the photoluminescence quantum yield(PlQY)and elevating the light out-coupling efficiency remain *** surmount this challenge,we deliberately designed and synthesized a proof-of-concept TSCT emitter called CzO-TRZ by incorporating an extra carbazole donor into spiroheterocyclic *** introduction of rigid spiral fragments can immensely boost the horizontal orientation dipole ratio and establish an extra through-bond charge transfer(TBCT)radiative decay *** a result,a very high PlQY of 98.7%,fast kRISCof 2.2×10^(5)s^(-1)and high k_(r)^(s) of 2.2×10^(7)s^(-1),and an ultrahigh horizontal dipolar ratio of 90%were concurrently achieved for Cz O-TRZ blended ***,corresponding thermally activated delayed fluorescence(TADF)-and TADF-sensitized fluorescence(TSF)-OlEDs based on CzO-TRZ demonstrated external quantum efficiencies(EQEs)of 33.4% and 30.3%,respectively,highlighting its versatile applications as both an emitter and sensitized host.

关键词： organic electronics organic light-emitting diodes polycyclic aromatic hydrocarbons multiple-resonance

具有氨氮降解能力的海洋芽孢杆菌的筛选及其降解能力研究

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山东农业科学 2023年第7期55卷 113-121页

作者：赵玲丛明鞠宝吕家森烟台大学生命科学学院山东烟台264000 烟台大学海洋学院山东烟台264000

为筛选能降解氨氮的芽孢杆菌并应用到养殖海水的净化中,以解决高密度养殖带来的氨氮超标问题,本研究利用硫酸铵为唯一氮源的筛选培养基,从烟台周边海域分离到61株能利用氨氮的菌株,复筛得到两株具有较高氨氮降解能力的芽孢杆菌菌株X6和... 详细信息

为筛选能降解氨氮的芽孢杆菌并应用到养殖海水的净化中,以解决高密度养殖带来的氨氮超标问题,本研究利用硫酸铵为唯一氮源的筛选培养基,从烟台周边海域分离到61株能利用氨氮的菌株,复筛得到两株具有较高氨氮降解能力的芽孢杆菌菌株X6和X37。在氨氮初始浓度为63.27 mg/l的培养基中,X6和X37的48 h氨氮去除率分别为61.02%、50.96%,在氨氮初始浓度为27.00 mg/l的培养基中两者48 h氨氮去除率分别为35.30%、35.53%。通过形态特征、生理生化特征和16S rDNA序列比对,鉴定菌株X6为花津滩芽孢杆菌(Bacillus hwajinpoensis),菌株X37为巨大芽孢杆菌(Bacillus megaterium)。菌株X6的最适降解条件为温度32℃、pH 7.0、转速170 r/min,菌株X37的最适降解条件为温度27℃、pH 6.0、转速170 r/min,且两株菌在48 h的氨氮去除速率最高。两株菌的最佳复配比为1∶1,此比例下的复合菌剂在氨氮初始浓度约为27.00 mg/l、温度为30℃、pH 6.5、接种量6%、170 r/min时,48 h的氨氮去除率为54.768%,且该复合菌剂能同时去除培养基中的亚硝态氮和硝态氮。

关键词：氨氮降解花津滩芽孢杆菌巨大芽孢杆菌复合菌剂

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AIEgen configuration transition and aggregation enable dual prompt emission for single-component nondoped white OlEDs

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Aggregate

Aggregate 2024年第1期5卷 292-298页

作者： jiasen Zhang Qiang Wei Wei li Hao Chen Xiangyu Zhu Yongqi Bai Nannan Fei liang Cao Zujin Zhao Anjun Qin Ben Zhong Tang Ziyi Ge Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingboP.R.China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijingP.R.China Center for Aggregation-Induced Emission State Key laboratory of luminescent Materials and Devices South China University of Technology GuangzhouGuangzhouChina Shenzhen Institute of Aggregate Science and Technology School of Science and EngineeringThe Chinese University of Hong KongShenzhenChina

The dual emission(DE)feature in materials holds great potential to revolutionize the development of one-component system white organic lightemitting diodes(WOlEDs).However,the reported DE materials remain scarce owing to the formidable challenge of breaking Kasha’s rule and managing the intricate energy/charge transfer ***,we have introduced a groundbreaking DE AIEgen,2CzAn-TPE,which possesses a simple structure and undergoes Z-to-E isomerization and exhibits yellow and red fluorescence powders for pre-and post-sublimation,*** relatively lower potential energy,Z-conformation((Z)-1,2-diphenyl-1,2-bis(4-(10-(9-phenyl-9H-carbazol-3-yl)anthracen-9-yl)phenyl)ethene)of 2CzAn-TPE can be readily transformed into E-conformation((E)-1,2-diphenyl-1,2-bis(4-(10-(9-phenyl-9Hcarbazol-3-yl)anthracen-9-yl)phenyl)ethene)via vacuum *** utilization of X-ray diffraction and grazing-incidence-wide-angle X-ray scattering techniques confirms the structural transformation,while the crystallographic analysis reveals the establishment of numerous intermolecular CH⋅⋅⋅πinteractions between the tetraphenylethene(TPE)moiety and both the anthracene and carbazole *** allows a densely packed molecular arrangement,thereby offering propitious conditions for excimer generation in the E-conformation aggregated *** utilizing the sublimated 2CzAn-TPE as an emitter,a nondoped one-component WOlED was prepared,exhibiting an exceptionally high external quantum efficiency(EQE)of 5.0%,which represents one of the highest performances among all *** research introduces a novel,simple,and efficient approach to realize highly efficient one-molecule WOlEDs.

关键词： aggregation-induced emission dual emission isomerization white OlED

基于改进Swin Transformer的中心点目标检测算法

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计算机科学 2024年第6期51卷 264-271页

作者：刘家森黄俊重庆邮电大学通信与信息工程学院重庆400065

针对Swin Transformer在提取局部特征信息和特征表达能力上存在的不足,提出了一种基于改进Swin Transformer的中心点目标检测算法,以提高其在目标检测方面的性能。通过调整网络结构和引入反卷积模块来增强网络对局部特征信息的提取能力... 详细信息

针对Swin Transformer在提取局部特征信息和特征表达能力上存在的不足,提出了一种基于改进Swin Transformer的中心点目标检测算法,以提高其在目标检测方面的性能。通过调整网络结构和引入反卷积模块来增强网络对局部特征信息的提取能力,利用自适应二维高斯核和回归头模块检测目标中心点来增强特征表达能力,并在Swin Transformer block模块中加入dropout激活函数,以缓解网络过拟合问题。在Pascal VOC和MS COCO 2017数据集上分别对改进后的算法进行验证,实验结果表明,改进后的Swin Transformer算法在Pascal VOC数据集上的精确度达到了81.1%,在MS COCO数据集上的精确度达到了37.2%,明显优于其他主流目标检测算法。

关键词：深度学习图像处理目标检测反卷积 Swin Transformer

高温高压实验揭示俯冲带蛇纹岩熔融行为与高镁岩浆成因

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海洋地质与第四纪地质 2024年第2期44卷 157-170页

作者：胡佳森张国良中国科学院海洋研究所深海极端环境与生命过程研究中心青岛266071 中国科学院大学北京100049 中国科学院海洋大科学研究中心青岛266071

近年来一些研究在岛弧岩浆中发现了蛇纹岩组分,这表明俯冲至弧下的蛇纹岩不仅为地幔楔提供流体,而且可以通过部分熔融参与岛弧岩浆形成。然而,蛇纹岩在地幔楔中的熔融行为及其在俯冲带物质循环中的作用仍未进行深入研究。因此,本研究选... 详细信息

近年来一些研究在岛弧岩浆中发现了蛇纹岩组分,这表明俯冲至弧下的蛇纹岩不仅为地幔楔提供流体,而且可以通过部分熔融参与岛弧岩浆形成。然而,蛇纹岩在地幔楔中的熔融行为及其在俯冲带物质循环中的作用仍未进行深入研究。因此,本研究选择3种蛇纹岩样品:蚀变原岩分别为二辉橄榄岩(SE2)和方辉橄榄岩(SE3)的天然蛇纹岩,以及模拟含有大量滑石的合成蛇纹岩样品(SEQ),在700~1300℃和4 GPa的温度压力条件下进行了模拟实验,限定了蛇纹岩的熔融温度,分析了实验产生的熔体成分。研究发现,不同类型蛇纹岩的固相线存在显著差异,SE3、SEQ和SE2蛇纹岩的固相线分别为900~960℃、960~1100℃以及1150~1200℃。这3种蛇纹岩的固相线均高于俯冲板片上表面的温度,要求蛇纹岩通过底辟作用进入地幔楔以发生部分熔融。根据实验结果,本研究认为SE2和SEQ蛇纹岩可以在地幔楔底部相对较低的温度条件下(960~1100℃)即发生熔融,产生科马提质岩浆;而在上覆地幔楔更高温度条件下(>1200℃),SE2蛇纹岩可以发生更广泛、更高程度的部分熔融,产生玻安质岩浆。

关键词：蛇纹岩俯冲带高温高压实验高镁岩浆科马提岩

基于磁控溅射技术的钴掺杂氧化铜薄膜的lIBS多维度分析研究

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中国激光 2024年第13期51卷 269-276页

作者：董丽丽吴家森夏祥宇武传奇修俊山山东理工大学化学化工学院山东淄博255000 山东理工大学物理与光电工程学院山东淄博255000

通过磁控溅射技术制备了一系列不同溅射压强和功率下的钴(Co)掺杂氧化铜(CuO)薄膜,利用激光诱导击穿光谱(lIBS)技术实现了该薄膜的多维度分析。绘制了不同溅射压强和功率下薄膜中Co/Cu元素含量比的定标曲线,线性拟合系数均超过0.99,显示... 详细信息

通过磁控溅射技术制备了一系列不同溅射压强和功率下的钴(Co)掺杂氧化铜(CuO)薄膜,利用激光诱导击穿光谱(lIBS)技术实现了该薄膜的多维度分析。绘制了不同溅射压强和功率下薄膜中Co/Cu元素含量比的定标曲线,线性拟合系数均超过0.99,显示了lIBS强度比与薄膜中元素含量比有很好的一致性,实现了薄膜中元素含量比的快速定量分析。由纳米薄膜中Co/Cu的lIBS强度比的二维映射结果可知:Co/Cu强度比随溅射压强的增加先变大后减小再增大;随着溅射功率的增加,Co/Cu强度比减小,分布均匀性变差。薄膜的透过率光谱分析结果显示,当溅射压强为3.0 Pa和溅射功率为75 W时,薄膜禁带宽度达到了较大的值,且薄膜光学禁带宽度与Co/Cu的lIBS强度比随溅射参数变化的趋势是一致的,为薄膜的光学性能评估提供了lIBS技术支持。研究结果表明,lIBS技术可以实现磁控溅射制备的Co掺杂CuO薄膜的多维度分析。

关键词：光谱学激光诱导击穿光谱磁控溅射技术钴掺杂氧化铜薄膜多维度分析

铝/镀镍钢异种材料摆动激光熔钎焊接头组织性能

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中国激光 2024年第12期51卷 41-49页

作者：刘永洪蔡创谢佳张冰冰余杰黄嘉森西南交通大学材料科学与工程学院材料先进技术教育部重点实验室四川成都610031

界面金属间化合物的厚度和种类是影响铝/钢异种材料激光熔钎焊接头性能的关键。研究了不同摆动参数下接头金属间化合物(IMCs)的厚度和种类,并进一步分析了不同摆动参数下接头的拉伸性能及断口形貌。结果表明,摆动激光可以改善铝/钢异种... 详细信息

界面金属间化合物的厚度和种类是影响铝/钢异种材料激光熔钎焊接头性能的关键。研究了不同摆动参数下接头金属间化合物(IMCs)的厚度和种类,并进一步分析了不同摆动参数下接头的拉伸性能及断口形貌。结果表明,摆动激光可以改善铝/钢异种材料激光熔钎焊接头界面金属间化合物的厚度和相组成。未加摆动激光时,在界面形成了厚度约为8.45μm的两层IMCs,焊缝侧IMCs为τ_(5)-(Fe,Ni)_(1.8)Al_(7.2)Si,钢侧IMCs为θ-(Fe,Ni)(Al,Si)_(3)。当激光摆动直径为2 mm、频率为30 Hz时,IMCs的分布更加连续均匀,厚度约为2.21μm,界面层组织为τ_(5)-(Fe,Ni)_(1.8)Al_(7.2)Si,最优接头线载荷为289.1 N/mm,比未加摆动激光时的接头线载荷提高了约33.9%。

关键词：激光技术铝/钢激光熔钎焊摆动激光金属间化合物力学性能