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A Decade Review of China International Die-Casting Congress & Exhibition(1997-2007)

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China Foundry 2008年第1期5卷 57-61页

作者： su shifang Secretary-General of FICMES

Distinguished colleagues and fellows in the die-casting industry at： home and abroad：China International Diecasting Congress ＆ Exhibition takes place biennially. Ten years has passed since April 14-17, 1997 when the first such event was held in Beijing. Over the decade, the Congress ＆ Exhibition has received huge support from the die casting industry organizations, metdia, enterprises, many of the pioneers and professionals who have been making great contributions to the development of China＇s die casting industry. Under these supports and participation as well as with the development and booming in China＇s die casting industry, China International Die-casting Congress ＆ Exhibition develops and expands continually, therefore its scale, degree of internationalization and influence in the die casting industry have grown substantially.

关键词：拉模铸造中国铸造技术铸造工业

Energy conservation and emissions reduction strategies in foundry industry

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China Foundry 2010年第4期7卷 392-399页

作者： Li Yuanyuan Chen Weiping Huang Dan Luo Jie Liu Zhe Chen Yongcheng Liu Qiping su shifang School of Mechanical ＆ Automotive Engineering South China University of Technology Guangzhou 510640 China School of Materials Science and Engineering Henan Polytechnic University Jiaozuo 454003 China Zhongtian Chuangzhan Ductile Iron Co. Ltd. Foshan 528313 China Shaoguan Foundry and Forging Group Shaoguan 512031 China Shenyang Research Institute of Foundry Shenyang 110022 China

Current energy conservation and emissions reduction strategies in iron and steel industry were reviewed. Since foundry industry is one of the major source of energy consumption and pollution emission (especially CO 2 ), issues concerning energy-saving and emission-reduction have been raised by governments and the industry. Specialists from around the world carried out multidimensional analyses and evaluation on the potentials in energy conservation and emissions reduction in iron and steel industry, and proposed various kinds of analyzing models. The primary measures mainly focus on the targeted policies formulation and also on clean and highefficient technologies development. The differences and similarities in energy conservation and emission reduction in foundry industry between China and other countries were discussed, while, the future development trend was also pointed out.

关键词： energy conservation emission reduction foundry

Application of 3-D numerical simulation software SRIFCAST to produce ductile iron castings

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China Foundry 2005年第3期2卷 151-158页

作者： Junqing WANG Xun suN shifang su Baozhi LI Jun YANG Shenyang Research Institute of Foundry Shenyang 110022 Liaoning P. R. China Shenyang Research Institute of Foundry Shenyang 110022 Liaoning P. R. China Dalian Jiaotong University Dalian 116024 Liaoning P. R. China

Based on a method using numerical simulation equations and their solution schemes for liquid metal flows andheat transfer during mold filling and the solidification process of casting, 3-D numerical simulation software SRIFCAST wascreated. This includes enmeshment of casting; velocity and temperature fields calculation; displaying iso-temperature lines;velocity vectors and 3-D temperature fields on a Windows 9x operating system. SRIFCAST was applied to produce soundcastings of automobile and diesel engines, and also to connect with microstructure simulation for ductile iron castings.

关键词： ductile iron castings mold filling and solidification velocity and temperature fields microstructure modeling numerical simulation software

基于迁移学习的葡萄叶片病害识别及移动端应用

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农业工程学报 2021年第10期37卷 127-134页

作者：苏仕芳乔焰饶元安徽农业大学信息与计算机学院合肥230036

为解决已有的卷积神经网络在小样本葡萄病害叶片识别的问题中出现的收敛速度慢,易产生过拟合现象等问题,提出了一种葡萄叶片病害识别模型(Grape-VGG-16,GV),并针对该模型提出基于迁移学习的模型训练方式。将VGG-16网络在ImageNet图像数... 详细信息

为解决已有的卷积神经网络在小样本葡萄病害叶片识别的问题中出现的收敛速度慢,易产生过拟合现象等问题,提出了一种葡萄叶片病害识别模型(Grape-VGG-16,GV),并针对该模型提出基于迁移学习的模型训练方式。将VGG-16网络在ImageNet图像数据集上学习的知识迁移到本模型中,并设计全新的全连接层。对收集到的葡萄叶片图像使用数据增强技术扩充数据集。基于扩充前后的数据集,对全新学习、训练全连接层的迁移学习、训练最后一个卷积层和全连接层的迁移学习3种学习方式进行了试验。试验结果表明,1)迁移学习的2种训练方式相比于全新学习准确率增加了10~13个百分点,并在仅训练25轮达到收敛,该方法有效提升了模型分类性能,缩短模型的收敛时间;2)数据扩充有助于增加数据的多样性,并随着训练次数的增加,训练与测试准确率同步上升,有效缓解了过拟合现象。在迁移学习结合数据扩充的方式下,所构建的葡萄叶片病害识别模型(GV)对葡萄叶片病害的识别准确率能达到96.48%,对健康叶、褐斑病、轮斑病和黑腐病的识别准确率分别达到98.04%、98.04%、95.83%和94.00%。最后,将最终的研究模型部署到移动端,实现了田间葡萄叶片病害的智能检测,为葡萄病害的智能诊断提供参考。

关键词：图像识别病害葡萄叶片迁移学习数据扩充移动端

ESRC guide vanes of hydraulic turbine for Three Gorges project

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China Foundry 2005年第2期2卷 117-120页

作者： Rui CHEN Xudong LI Junqing WANG shifang su Jun YANG Xueliang QU Shenyang Research Institute of Foundry Shenyang 110022 Liaoning P. R. China

The mechanical properties and internal quality of low carbon martensite Electroslag Remelting Casting (ESRC)stainless steel castings are superior to that of sand casting ones. The key technologies for the equipments and ESRCprocesses have been resolved during the experimental research period of guide vanes of hydraulic turbines for ThreeGorges project. And ESRC guide vanes of hydraulic turbines for Three Gorges project have been produced successfully.

关键词： ESRC guide vane stainless steel

193例HIV/AIDS合并视网膜炎的临床特征分析

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第三军医大学学报 2018年第6期40卷 513-518页

作者：谭顺姜学松黄正谷苏世芳重庆市公共卫生医疗救治中心重庆400036

目的分析人类免疫缺陷病毒(human immunodeficiency virus,HIV)/获得性免疫缺陷综合征(acquired immunodeficiency syndrome,AIDS)患者视网膜炎发生的临床特征及治疗后反应。方法收集2015-2017年在重庆市公共卫生医疗救治中心住院的193... 详细信息

目的分析人类免疫缺陷病毒(human immunodeficiency virus,HIV)/获得性免疫缺陷综合征(acquired immunodeficiency syndrome,AIDS)患者视网膜炎发生的临床特征及治疗后反应。方法收集2015-2017年在重庆市公共卫生医疗救治中心住院的193例HIV/AIDS合并视网膜炎的患者,男性156例,女性37例,年龄(43.9±11.9)岁;分为巨细胞病毒视网膜炎(cytomegalovirus retinitis,CMV R)组和HIV微血管病(HIV microangiopathy,HIV M)组,对其临床资料、检测指标、眼科检查结果及抗病毒治疗效果进行回顾性分析。结果 HIV/AIDS合并有视网膜炎的患者,CD4+T细胞计数明显低于非视网膜患者,而HIV RNA显著高于非视网膜患者(t=5.6、-2.3,P<0.05)。HIV M和CMV R无眼科症状的患者分别占44.4%、41.7%;CMV R以双眼病变为主,占77.4%;视网膜炎的总发生率为45.7%,并随着CD4+T细胞的降低逐渐增高,CD4+T细胞<200个/μL时视网膜炎的发生率为30%,CD4+T细胞<50个/μL时视网膜炎发生率最高,达58.6%。人巨细胞病毒DNA(human cytomegalovirus DNA,HCMV DNA)阳性的视网膜炎患者给予抗巨细胞病毒治疗后HCMV DNA转阴率在70%以上;CMV R视力恢复及病灶吸收率明显高于HIV M患者(χ2=9.526、24.206,P<0.05)。结论 HIV/AIDS患者发生视网膜炎的风险与CD4+T细胞水平密切相关,呈负相关性;对于CD4+T细胞<200个/μL的患者推荐行眼科相关检查,对于CD4+T细胞<50个/μL的患者建议常规开展眼科相关检查;全身抗巨细胞病毒治疗可有效控制病毒,改善眼部症状,提高生活质量。

关键词：获得性免疫缺陷综合征人类免疫缺陷病毒微血管病巨细胞病毒性视网膜炎

Modeling and Capacity Configuration Optimization of CRH5 EMU On-Board Energy Storage System

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Energy Engineering 2025年第1期122卷 307-329页

作者： Mingxing Tian Weiyuan Zhang Zhaoxu su School of Automation and Electrical Engineering Lanzhou Jiaotong UniversityLanzhou730070China

In the context of the“dual carbon”goals,to address issues such as high energy consumption,high costs,and low power quality in the rapid development of electrified railways,this study focused on the China Railways High-Speed 5 Electric Multiple Unit and proposed a mathematical model and capacity optimization method for an onboard energy storage system using lithium batteries and supercapacitors as storage ***,considering the electrical characteristics,weight,and volume of the storage media,a mathematical model of the energy storage system was ***,to tackle problems related to energy consumption and power quality,an energy management strategy was proposed that comprehensively considers peak shaving and valley filling and power quality by controlling the charge/discharge thresholds of the storage *** optimization adopted a bilevel programming model,with the series/parallel number of storage modules as variables,considering constraints imposed by the Direct Current to Direct Current converter,train load,and *** improved Particle Swarm Optimization algorithm and linear programming solver were used to solve specific *** results show that the proposed onboard energy storage system can effectively achieve energy savings,reduce consumption,and improve power qualitywhile meeting the load and space limitations of the train.

关键词： Electrified railway regenerative braking bi-level programming on-board energy storage power quality capacity configuration

Single-cell and spatial omics:exploring hypothalamic heterogeneity

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Neural Regeneration Research 2025年第6期20卷 1525-1540页

作者： Muhammad Junaid Eun Jeong Lee su Bin Lim Department of Biochemistry&Molecular Biology Ajou University School of MedicineSuwonSouth Korea Department of Biomedical Sciences Graduate School of Ajou UniversitySuwonSouth Korea Department of Brain Science Ajou University School of MedicineSuwonSouth Korea

Elucidating the complex dynamic cellular organization in the hypothalamus is critical for understanding its role in coordinating fundamental body functions. Over the past decade, single-cell and spatial omics technologies have significantly evolved, overcoming initial technical challenges in capturing and analyzing individual cells. These high-throughput omics technologies now offer a remarkable opportunity to comprehend the complex spatiotemporal patterns of transcriptional diversity and cell-type characteristics across the entire hypothalamus. Current single-cell and single-nucleus RNA sequencing methods comprehensively quantify gene expression by exploring distinct phenotypes across various subregions of the hypothalamus. However, single-cell/single-nucleus RNA sequencing requires isolating the cell/nuclei from the tissue, potentially resulting in the loss of spatial information concerning neuronal networks. Spatial transcriptomics methods, by bypassing the cell dissociation, can elucidate the intricate spatial organization of neural networks through their imaging and sequencing technologies. In this review, we highlight the applicative value of single-cell and spatial transcriptomics in exploring the complex molecular-genetic diversity of hypothalamic cell types, driven by recent high-throughput achievements.

关键词： cellular diversity hypothalamus multi-omics single-cell transcriptomics spatial transcriptomics

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)