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Chinese Journal of Chemistry 1990年第1期8卷 61-67页

作者： TONG zhen-he yang Guo-Qiang WU Shi-Kang Institute of Photographic Chemistry,Academia Sinica,Beijing 100012 Institute of Photographic Chemistry Academia Sinica Beijing 100012

The singlet-singlet intramolecular energy transfer between naphthalene moiety and dansyl group held apart by a rigid steroid bridge was investigated for two molecules:3β-(1-naphthyl)acetoxy- 17α-dansyl-△~5androstene(3a)and 3β-(1-naphthyl)acetoxy-17β-dansyl-△~5androstene(3b).The rates of energy transfer for 3a and 3b in cyclohexane are 6.9×10~6 and 1.1×10~8s^(-1) *** difference in energy transfer rate between 3a and 3b is attributed to the different donor-acceptor separation and *** ratio of the two epimers in the synthesized product mixture was obtained from the fluorescence decay measurements.

关键词： Energy transfer as a probe to determine the ratio of two epimers

Ubiquitin Reduces Expression of Intercellular Adhesion Molecules and Tumor Necrosis Factor-α in Lung Tissue of Experimental Acute Lung Injury

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麻醉与监护论坛 2011年第6期18卷 426-428页

作者： zhen-yang he Juan Xing Department of Critical Care Medicine Hainan Provincial Hospital Haikou 570311 China

Ubiquitin Reduces Expression of Intercellular Adhesion Molecules and Tumor Necrosis Factor-a in Lung Tissue of Experimental Acute Lung Injury

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麻醉与监护论坛 2012年第2期19卷 97-99页

作者： zhen-yang he Juan Xing Department of Critical Care Medicine Hainan Provincial Hospital Haikou 570311 China

Primary spinal melanoma： a case report and literature review

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Chinese Medical Journal 2012年第22期125卷 4138-4141页

作者： YAN Liang CHANG zhen LIU yang he Bao-rong HAO Ding-jun Xi An Jiao Tong Univ Coll Med Hong Hui Hosp Xian 710054 Shaanxi Peoples R China

This case report describes a 44-year-old woman with primary spinal cord malignant melanoma localized in the lumbar region. This is a very rare lesion. The patient presented with back pain and slight weakness in her lower extremities. Magnetic resonance imaging showed hyperintense signals on Tl-weighted images and hypointense signals on T2-weighted images. The entire tumor was removed surgically. The patient＇s postoperative clinical examination revealed mild neurological improvements. Histopathological investigations confirmed the tumor was a malignant melanoma. When treating common lesions of the lumbar spinal cord with a benign appearance, surgeons should be aware of the potential for malignant tumors.

关键词： spinal melanoma primary

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朱仙镇木板年画的色彩装饰性研究

艺术百家 2013年第4期29卷 235-237页

作者：杨振和南京邮电大学传媒与艺术学院江苏南京210023

朱仙镇木板年画素以造型朴拙和色彩饱满著称,二者相得益彰,其原色的运用具有强烈的画面装饰意味。又由于颜料工艺取材于自然植物或矿物质,色彩鲜明而质地厚重,具有浓郁的民俗之美,而且块面处理均衡,套色对比强烈,体现出特定的创作规律... 详细信息

朱仙镇木板年画素以造型朴拙和色彩饱满著称,二者相得益彰,其原色的运用具有强烈的画面装饰意味。又由于颜料工艺取材于自然植物或矿物质,色彩鲜明而质地厚重,具有浓郁的民俗之美,而且块面处理均衡,套色对比强烈,体现出特定的创作规律。不仅如此,朱仙镇版画的色彩渗透着五行观念,是集视觉装饰与人文意蕴于一体的传统艺术之瑰宝。

关键词：工艺美术艺术作品朱仙镇木板年画装饰色彩

Joint Estimation of SOH and RUL for Lithium-Ion Batteries Based on Improved Twin Support Vector Machineh

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Energy Engineering 2025年第1期122卷 243-264页

作者： Liyao yang HongyanMa Yingda Zhang Wei he School of Electrical and Information Engineering Beijing University of Civil Engineering and ArchitectureBeijing100044China Institute of Distributed Energy Storage Safety Big Data Beijing100044China Beijing Key Laboratory of Intelligent Processing for Building Big Data Beijing100044China

Accurately estimating the State of health(SOH)and Remaining Useful Life(RUL)of lithium-ion batteries(LIBs)is crucial for the continuous and stable operation of battery management ***,due to the complex internal chemical systems of LIBs and the nonlinear degradation of their performance,direct measurement of SOH and RUL is *** address these issues,the Twin Support Vector Machine(TWSVM)method is proposed to predict SOH and ***,the constant current charging time of the lithium battery is extracted as a health indicator(HI),decomposed using Variational Modal Decomposition(VMD),and feature correlations are computed using Importance of Random Forest Features(RF)to maximize the extraction of critical factors influencing battery performance ***,to enhance the global search capability of the Convolution Optimization Algorithm(COA),improvements are made using Good Point Set theory and the Differential Evolution *** Improved Convolution Optimization Algorithm(ICOA)is employed to optimize TWSVM parameters for constructing SOH and RUL prediction ***,the proposed models are validated using NASA and CALCE lithium-ion battery *** results demonstrate that the proposed models achieve an RMSE not exceeding 0.007 and an MAPE not exceeding 0.0082 for SOH and RUL prediction,with a relative error in RUL prediction within the range of[-1.8%,2%].Compared to other models,the proposed model not only exhibits superior fitting capability but also demonstrates robust performance.

关键词： State of health remaining useful life variational modal decomposition random forest twin support vector machine convolutional optimization algorithm

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多通道尖齿破壳莲子行星运动剥壳机

食品与机械 2014年第4期30卷 92-95页

作者：杨振和湖南省粮油产品质量监测中心湖南长沙410201 湖南省粮油科学研究设计院湖南长沙410201

从莲子的运动形式、破壳方式、刀具结构等方面,分析莲子剥壳机存在的问题。切壳不彻底,对莲子的压力大是产生碎莲和影响剥壳率的主要原因。根据莲子的结构和莲壳的特性,提出点、线、面三步低压力剥壳工艺技术。设计一种采用三步剥壳工... 详细信息

从莲子的运动形式、破壳方式、刀具结构等方面,分析莲子剥壳机存在的问题。切壳不彻底,对莲子的压力大是产生碎莲和影响剥壳率的主要原因。根据莲子的结构和莲壳的特性,提出点、线、面三步低压力剥壳工艺技术。设计一种采用三步剥壳工艺、莲子作行星运动破壳压力小的多通道新型剥壳机,并探讨其结构设计、主要结构参数与运动参数的计算。

关键词：莲子剥壳多通道尖齿破壳三步剥壳工艺

Effect of Progressive Substitution of Cement and Lime by Powdered Shells Used as a Curing Agent for Dredged Soil in a Port Area

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 88-102页

作者： SUN yang WANG Faxin SU Yaying LI Yiwei he Feng College of Harbour Coastal and Offshore EngineeringHohai UniversityNanjing 210098China Huai'an Research Institute Hohai UniversityHuai'an 223025China Jiangsu Fangyang Industrial Investment Corp.Ltd. Lianyungang 210098China

This study aimed to address the challenges of solid waste utilization,cost reduction,and carbon reduction in the treatment of deep-dredged soil at Xuwei Port in Lianyungang city of *** research in this area was ***,a curing agent made from powdered shells was used to solidify the dredged soil in *** employed laboratory orthogonal tests to investigate the physical and mechanical properties of the powdered shell-based curing *** was collected by conducting experiments to assess the role of powdered shells in the curing process and to determine the optimal ratios of powdered shells to solidified soil for different *** development of strength in solidified soil was studied in both seawater and pure water *** study revealed that the strength of the solidified soil was influenced by the substitution rate of powdered shells and their interaction with *** cement content had a positive effect on *** high-strength solidified soil,the recommended ratio of wet soil:cement:lime:powdered shells were 100:16:4:4,while for low-strength solidified soil,the recommended ratio was 100:5.4:2.4:***,under appropriate conditions,improved short-term strength by promoting the formation of expansive ettringite minerals that contributed to cementation and *** findings suggest that the combination of cement and powdered shells is synergistic,positively affecting the strength of solidified *** recommended ratios provide practical guidance for achieving desired strength levels while considering factors such as cost and carbon *** role of seawater in enhancing short-term strength through crystal formation is noteworthy and can be advantageous for certain *** conclusion,this research demonstrates the potential of using a powdered shell-based curing agent for solidifying dredged soil in an environmentally friendly and cost-effective *** recommended ratios for different str

关键词： carbon reduction and solidification dredged soil abandoned shells orthogonal test chemical additives(lime and cement) unconfined compressive strength(UCS)

Characteristic changes in astrocyte properties during astrocyte-to-neuron conversion induced by NeuroD1/Ascl1/Dlx2

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Neural Regeneration Research 2025年第6期20卷 1801-1815页

作者： Qing he zhen Wang Yuchen Wang Mengjie Zhu Zhile Liang Kanghong Zhang Yuge Xu Gong Chen GHM Institute of CNS Regeneration Jinan UniversityGuangzhouGuangdong ProvinceChina

Direct in vivo conversion of astrocytes into functional new neurons induced by neural transcription factors has been recognized as a potential new therapeutic intervention for neural injury and degenerative disorders. However, a few recent studies have claimed that neural transcription factors cannot convert astrocytes into neurons, attributing the converted neurons to pre-existing neurons mis-expressing transgenes. In this study, we overexpressed three distinct neural transcription factors––NeuroD1, Ascl1, and Dlx2––in reactive astrocytes in mouse cortices subjected to stab injury, resulting in a series of significant changes in astrocyte properties. Initially, the three neural transcription factors were exclusively expressed in the nuclei of astrocytes. Over time, however, these astrocytes gradually adopted neuronal morphology, and the neural transcription factors was gradually observed in the nuclei of neuron-like cells instead of astrocytes. Furthermore,we noted that transcription factor-infected astrocytes showed a progressive decrease in the expression of astrocytic markers AQP4(astrocyte endfeet signal), CX43(gap junction signal), and S100β. Importantly, none of these changes could be attributed to transgene leakage into preexisting neurons. Therefore, our findings suggest that neural transcription factors such as NeuroD1, Ascl1, and Dlx2 can effectively convert reactive astrocytes into neurons in the adult mammalian brain.

关键词： aquaporin-4 Ascl1 astrocyte cortex Dlx2 gap junction glia-to-neuron conversion neural regeneration NeuroD1 reprogramming

The detection, extraction and parameter estimation of extreme-mass-ratio inspirals with deep learning

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 86-96页

作者： Qianyun Yun Wen-Biao Han Yi-yang Guo he Wang Minghui Du Hangzhou Institute for Advanced Study University of Chinese Academy of Sciences Shanghai Astronomical Observatory Chinese Academy of Sciences School of Physics and Astronomy Shanghai Jiao Tong University School of Astronomy and Space Science University of Chinese Academy of Sciences Taiji Laboratory for Gravitational Wave Universe (Beijing/Hangzhou) University of Chinese Academy of Sciences Lanzhou Center for Theoretical Physics Key Laboratory of Theoretical Physics of Gansu Province Key Laboratory of Quantum Theory and Applications of MoE Lanzhou University Institute of Theoretical Physics & Research Center of Gravitation Lanzhou University International Centre for Theoretical Physics Asia-Pacific (ICTP-AP) University of Chinese Academy of Sciences (UCAS) Center for Gravitational Wave Experiment National Microgravity Laboratory Institute of Mechanics Chinese Academy of Sciences

One of the primary goals of space-borne gravitational wave detectors is to detect and analyze extreme-mass-ratio inspirals(EMRIs). This task is particularly challenging because EMRI signals are complex, lengthy, and faint. In this work, we introduce a2-layer convolutional neural network(CNN) approach to detect EMRI signals for space-borne detectors, achieving a true positive rate(TPR) of 96.9% at a 1% false positive rate(FPR) for signal-to-noise ratio(SNR) from 50 to 100. Especially, the key intrinsic parameters of EMRIs such as the mass, spin of the supermassive black hole(SMBH) and the initial eccentricity of the orbit can also be inferred directly by employing a neural network. The mass and spin of the SMBH can be determined at 99% and 92% respectively. This will greatly reduce the parameter spaces and computing cost for the following Bayesian parameter *** model also has a low dependency on the accuracy of the waveform model. This study underscores the potential of deep learning methods in EMRI data analysis, enabling the rapid detection of EMRI signals and efficient parameter estimation.

关键词： gravitational wave EMRIs deep-learing