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Clinical effects of injectable collagen in lower-lid pretarsal fullness rejuvenation

Chinese Journal Of Plastic and Reconstructive Surgery 2022年第3期4卷 110-114页

作者： junjie li Zhengzheng Jiang Zhezhen Xiong Minxue liang Yaping Bai Weitai Jiang Kai liu Department of Cosmetic Surgery Shanghai Yonghuihua ClinicShanghai 200050China Department of Cosmetic Surgery Yijie Medical Cosmetology ClinicHangzhou 310009ZhejiangChina Department of Plastic and Reconstructive Surgery Shanghai International Medical CenterShanghai 200120China Department of Plastic and Reconstructive Surgery Linhai Jiang Zhengzheng Plastic and Cosmetic Surgery ClinicTaizhou 317099ZhejiangChina Department of Plastic and Reconstructive Surgery Shanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghai 200011China

Background: Lower-lid pretarsal fullness rejuvenation is a popular surgery for Asian women. However, the current procedures have clinical complications and are not stable in the long-term. Here, we analyzed the effect of injectable collagen on lower-lid pretarsal fullness rejuvenation.Methods: To investigate the clinical effect of injectable collagen in lower-lid pretarsal fullness rejuvenation, we observed 32 Chinese Han female patients aged 18–55 years with non-distinctive lower-lid pretarsal fullness and no history of lower eyelid surgery or trauma. The injectable collagen products were used for local filling correction. After surgery, the patients were followed up for 12 months. A correction effect was evaluated through an analysis of volume changes using a visual analog scale. Adverse reactions were also recorded.Results: All patients achieved good aesthetic outcomes and strong stereoscopic impressions of lower-lid pretarsal fullness. Complications, such as edema and bruising, were not observed after the injection. Immediately after the operation, the average visual analog score was 2.65 ± 0.56. Six months after the operation, the average visual analog score was 2.96 ± 0.41. The patients reported high satisfaction levels. Immediately after the operation, the average lower-lid pretarsal fullness volume increase was 0.19 ± 0.04 m L on the left side and 0.21 ± 0.03 m L on the right side. After a 12-month follow-up, the average residual volume was 0.17 ± 0.06 m L on the left side and 0.19 ± 0.04 m L on the right side, suggesting that the injected collagen impact was stable.Conclusion: Injectable collagen promotes a vivid, natural appearance and is highly effective in rejuvenating lowerlid pretarsal fullness with low absorption rates in later stages. Therefore, injectable collagen should be considered in correcting congenital, non-distinctive, lower-lid pretarsal fullness in clinical practice.

关键词： Injectable collagen Lower-lid pretarsal fullness rejuvenation

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高温退火提升质子交换膜燃料电池阴极催化剂的铂利用率

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Science China Materials 2024年第6期67卷 1851-1857页

作者：李俊杰李子睿李帅徐聪李昂童磊梁海伟 Hefei National Research Center for Physical Sciences at the Microscale Department of ChemistryUniversity of Science and Technology of ChinaHefei 230026China Nano Science and Technology Institute University of Science and Technology of ChinaSuzhou 215123China

高温退火被认为是提升质子交换膜燃料电池中铂碳阴极催化剂耐久性的有效方法,但关于其对燃料电池性能的影响尚缺乏研究报道.本文通过对不同温度制备的铂碳催化剂进行详细对比分析,探讨了高温退火对燃料电池性能的影响.结果表明,高温退... 详细信息

高温退火被认为是提升质子交换膜燃料电池中铂碳阴极催化剂耐久性的有效方法,但关于其对燃料电池性能的影响尚缺乏研究报道.本文通过对不同温度制备的铂碳催化剂进行详细对比分析,探讨了高温退火对燃料电池性能的影响.结果表明,高温退火不仅增强了催化剂的耐久性,还显著提升了铂的利用率,进而提高了其质量活性和低电流密度性能.基于一系列电化学和物理表征结果,我们推测铂利用率的提升源于高温退火导致的铂纳米颗粒迁移行为,进而缩短了铂纳米颗粒与离子聚的间距.而较短的间距有利于提高质子对铂纳米颗粒的可及性,最终实现了铂纳米颗粒利用率的提升.

关键词： Pt/C catalyst fuel cell oxygen reduction reaction Pt utilization high-temperature annealing

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基于嵌入式的低温文丘里流量显示仪设计

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低温与超导 2024年第4期52卷 95-102页

作者：郑磊李俊杰安徽大学物质科学与信息技术研究院合肥230601 中国科学院合肥物质科学研究院强磁场科学中心合肥230031

为满足低温制冷系统中流量实时监测的需求,本文针对低温文丘里流量计,设计了基于嵌入式系统的低温文丘里流量显示仪,在其功能上集成压力压差信号采集、低温温度监测以及质量流量计算,可适用于不同状态的流体在不同压力、压差和温度工况... 详细信息

为满足低温制冷系统中流量实时监测的需求,本文针对低温文丘里流量计,设计了基于嵌入式系统的低温文丘里流量显示仪,在其功能上集成压力压差信号采集、低温温度监测以及质量流量计算,可适用于不同状态的流体在不同压力、压差和温度工况下的流量测量。该流量显示仪具有易使用、集成度高等优点。结果表明该低温文丘里流量显示仪的测试误差最大为0.557%,满足低温环境中流量监测的要求。

关键词：低温文丘里流量计嵌入式流量监测

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Feasibility of sentinel lymph node biopsy omission after integration of ^(18)F-FDG dedicated lymph node PET in early breast cancer: a prospective phase II trial

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Cancer Biology & Medicine 2022年第7期19卷 1100-1108页

作者： junjie li Jingyi Cheng Guangyu liu Yifeng Hou Genghong Di Benglong Yang Yizhou Jiang liang Huang Feilin Qu Sheng Chen Yan Wang Keda Yu Zhimin Shao Department of Breast Surgery Fudan University Shanghai Cancer Centerand Department of OncologyShanghai Medical CollegeFudan UniversityShanghai 200032China Key Laboratory of Breast Cancer in Shanghai Fudan University Shanghai Cancer CenterFudan UniversityShanghai 200032China Department of Nuclear Medicine Fudan University Shanghai Cancer CenterShanghai 200032China

Objective:Sentinel lymph node biopsy(SLNB)is currently the standard of care in clinically node negative(cN0)breast cancer.The present study aimed to evaluate the negative predictive value(NPV)of 18F-FDG dedicated lymph node positron emission tomography(LymphPET)in cN0 patients.Methods:This was a prospective phase II trial divided into 2 stages(NCT04072653).In the first stage,cN0 patients underwent axillary LymphPET followed by SLNB.In the second stage,SLNB was omitted in patients with a negative preoperative axillary assessment after integration of LymphPET.Here,we report the results of the first stage.The primary outcome was the NPV of LymphPET to detect macrometastasis of lymph nodes(LN-macro).Results:A total of 189 patients with invasive breast cancer underwent LymphPET followed by surgery with definitive pathological reports.Forty patients had LN-macro,and 16 patients had only lymph node micrometastasis.Of the 131 patients with a negative LymphPET result,16 patients had LN-macro,and the NPV was 87.8%.After combined axillary imaging evaluation with ultrasound and LymphPET,100 patients were found to be both LymphPET and ultrasound negative,9 patients had LN-macro,and the NPV was 91%.Conclusions:LymphPET can be used to screen patients to potentially avoid SLNB,with an NPV>90%.The second stage of the SOAPET trial is ongoing to confirm the safety of omission of SLNB according to preoperational axillary evaluation integrating LymphPET.

关键词： Breast cancer sentinel lymph node biopsy 18F-fluorodeoxyglucose LymphPET negative predictive value

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Using amino acid features to identify the pathogenicity of influenza B virus

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Infectious Diseases of Poverty 2022年第3期11卷 88-88页

作者： Zheng Kou Xinyue Fan junjie li Zehui Shao Xiaoli Qiang Institute of Computing Science and Technology Guangzhou UniversityGuangzhou510006China School of Computer Science and Cyber Engineering Guangzhou UniversityGuangzhou510006China

Background:Influenza B virus can cause epidemics with high pathogenicity, so it poses a serious threat to public health. A feature representation algorithm is proposed in this paper to identify the pathogenicity phenotype of influenza B virus.Methods:The dataset included all 11 influenza virus proteins encoded in eight genome segments of 1724 strains. Two types of features were hierarchically used to build the prediction model. Amino acid features were directly delivered from 67 feature descriptors and input into the random forest classifier to output informative features about the class label and probabilistic prediction. The sequential forward search strategy was used to optimize the informative features. The final features for each strain had low dimensions and included knowledge from different perspectives, which were used to build the machine learning model for pathogenicity identification.Results:The 40 signature positions were achieved by entropy screening. Mutations at position 135 of the hemagglutinin protein had the highest entropy value (1.06). After the informative features were directly generated from the 67 random forest models, the dimensions for class and probabilistic features were optimized as 4 and 3, respectively. The optimal class features had a maximum accuracy of 94.2% and a maximum Matthews correlation coefficient of 88.4%, while the optimal probabilistic features had a maximum accuracy of 94.1% and a maximum Matthews correlation coefficient of 88.2%. The optimized features outperformed the original informative features and amino acid features from individual descriptors. The sequential forward search strategy had better performance than the classical ensemble method.Conclusions:The optimized informative features had the best performance and were used to build a predictive model so as to identify the phenotype of influenza B virus with high pathogenicity and provide early risk warning for disease control.

关键词： Influenza B virus Pathogenicity Amino acid feature Machine learning

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Environmental,social,and economic assessment of energy utilization of crop residue in China

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Frontiers in Energy 2021年第2期15卷 308-319页

作者： Yueling ZHANG junjie li Huan liU Guangling ZHAO Yajun TIAN Kechang XIE Key Laboratory of Resources and Environmental System Optimization(Ministry of Education) College of Environmental Sciense and EngineeringNorth China Electic Power UniversityBeijing 102206China School Chemical and Environmental Engineering China University of Mining and TechnologyBeijng 100083China Department of Energy Conversion and Storage Technical University of DenmarkLyngby 2820Denmark National Institute of Clean and Low Carbon Energy Beijing 102211China Chinese Acadamy of Engineering Beijing 100088China

This paper aims to discuss an environmental, social, and economic analysis of energy utilization of crop residues from life cycle perspectives in China. The methodologies employed to achieve this objective are environmental life cycle assessment (E-LCA), life cycle cost (LCC), and social life cycle assessment (S-LCA). Five scenarios are developed based on the conversion technologies and final bioenergy products. The system boundaries include crop residue collection, transportation, pre-treatment, and conversion process. The replaced amounts of energy are also taken into account in the E-LCA analysis. The functional unit is defined as 1 MJ of energy produced. Eight impact categories are considered besides climate change in E-LCA. The investment capital cost and salary cost are collected and compared in the life cycle of the scenarios. Three stakeholders and several subcategories are considered in the S-LCA analysis defined by UNEP/SETAS guidelines. The results show that the energy utilization of crop residue has carbon emission factors of 0.09–0.18 kg (CO2 eq per 1 MJ), and presents a net carbon emissions reduction of 0.03–0.15 kg (CO2 eq per 1 MJ) compared with the convectional electricity or petrol, but the other impacts should be paid attention to in the biomass energy scenarios. The energy utilization of crop residues can bring economic benefit to local communities and the society, but the working conditions of local workers need to be improved in future biomass energy development.

关键词： crop residue life cycle assessment life cycle cost social life cycle assessment energy production

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Photonics Research 2022年第3期10卷 678-686页

作者： Hongqiang Zhou Xin li Zhentao Xu Xiaowei li Guangzhou Geng junjie li Yongtian Wang lingling Huang Beijing Engineering Research Center of Mixed Reality and Advanced Display School of Optics and PhotonicsBeijing Institute of TechnologyBeijing 100081China Beijing Aerospace Automatic Control Institute Beijing 100143China Laser Micro/Nano-Fabrication Laboratory School of Mechanical EngineeringBeijing Institute of TechnologyBeijing 100081China Institute of Physics Chinese Academy of SciencesBeijing 100191China show less

Metasurface holography is becoming a universal platform that has made a considerable impact on nanophotonics and information optics,due to its advantage of large capacity and multiple functionalities.Here,we propose a correlated triple amplitude and phase holographic encryption based on an all-dielectric metasurface.We develop an optimized holographic algorithm to obtain quantitatively correlated triple holograms,which can encrypt information in multiple wavelength and polarization channels.We apply the“static”and“dynamic”pixels in our design,respectively.Two kinds of isotropic square nanofins are selected,one functioning as a transmitter and the other functioning as a blocker counterintuitively at both working wavelengths,while another anisotropic rectangle nanofin can transmit or block light in co-polarization selectively,mimicking“dynamic”amplitude switches.Meanwhile,such“dynamic”nanofins can simultaneously function as a phase modulator in cross-polarization only at the transmission wavelength.That is,through smart design,different dielectric meta-atoms functioning as spectral filters as well as phase contributors can compositely achieve triple hybrid amplitude and phase holograms.Such strategy promises to be applied in compact large-capacity information storage,colorful holographic displays,optical encryption,multifunctional imaging devices,and so on.

关键词： holographic phase dielectric

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共同富裕目标下东西部协作机制重构研究

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中州学刊 2024年第4期 66-73页

作者：李俊杰马志超北方民族大学党委宁夏银川750021 北方民族大学中华民族共同体学院宁夏银川750021

东西部协作是推动区域协调发展、协同发展、共同发展,从而实现共同富裕的大战略、大举措。党的十八大以来,东西部协作和对口支援的规模不断扩大、路径不断拓宽,西部地区全面建设小康社会成果显著。进入新发展阶段,要实现党的二十大报告... 详细信息

东西部协作是推动区域协调发展、协同发展、共同发展,从而实现共同富裕的大战略、大举措。党的十八大以来,东西部协作和对口支援的规模不断扩大、路径不断拓宽,西部地区全面建设小康社会成果显著。进入新发展阶段,要实现党的二十大报告提出的全体人民共同富裕的中国式现代化要求,东西部协作机制需要释放“倍增效应”。为此,需要响应以巩固拓展脱贫攻坚成果同乡村振兴有效衔接为起点,以缩小东西部区域城乡差距和群体收入差距为导向,以协同推进全国统一大市场建设为路径,遵循共同富裕目标下东西部协作机制的重构逻辑,以东西部协作机制重构赋能乡村振兴与区域协调发展。新发展阶段,以东西部协作机制重构赋能共同富裕,要推动“产业+园区”协作治理模式提档升级,强化“消费+就业”协作治理模式创新,探索“资源+服务”协作治理模式。

关键词：东西部协作乡村振兴机制重构共同富裕

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Fluoride-mediated nano-sized high-silica ZSM-5 as an ultrastable catalyst for methanol conversion to propylene

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Journal of Energy Chemistry 2018年第4期27卷 1225-1230页

作者： junjie li Min liu Xinwen Guo Chengyi Dai Chunshan Song State Key Laboratory of Fine Chemicals PSU-DUT Joint Centre for Energy Research School of Chemical Engineering Dalian University of Technology Department of Energy and Mineral Engineering EMS Energy Institute PSU-DUT Joint Centre for Energy Research Pennsylvania State University

Fluoride mediated nano-sized ZSM-5 （ZSM-5-F） with a high Si/AI ratio of 181 was fabricated using a seed-induction method and evaluated the catalysis of the methanol to propylene （MTP） reaction. High propylene selectivity （45%） was similar to ZSM-5-OH synthesized via a hydroxide route. However, ZSM- 5-F showed much longer lifetime （305 h） compared with ZSM-5-OH （157 h） in spite of similar crystal size and aluminum content. Characterization by NH3-TPD. Py-IR, OH-IR, SEM, TG-DTA, XRD and 1H MAS NMR techniques indicated that the enhanced catalytic performance of ZSM-S-F is attributed to the fewer structural defects in the form of internal silanol groups and silanol nests.

关键词： Fluoride route Nano-sized High Si/Al Structural defects MTP

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Performance of Five Early Indica Rice Varieties under Direct Seeding in Jiangbei District

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Meteorological and Environmental Research 2023年第5期14卷 57-58,64页

作者： Xiaoping YING Hefang li junjie li Juanying HAN Ningbo Jiangbei District Agricultural Technology Promotion Service Station Ningbo 315033China Yuyao City Seed and Seedling Management Station Ningbo 315400China

Comparative experiments were conducted on five conventional indica rice varieties,including Yongxian 15,Zhongzao 39,Shunda 135,Zhongzu 143,and Zhongzu 18.Under direct seeding conditions,their growth period and yield performance were investigated.The results showed that the yield of Zhonggang 143 and Shunda 135 was higher than that of Yongxian 15(CK),and Zhonggang 143 had the highest yield of 7.494 t/hm 2,followed by Shunda 135(7.467 t/hm 2);Yongxian 18(CK)has a yield of 7.326 t/hm 2.Taking into account factors such as field growth,yield,and growth period,Zhongzu 143 and Shunda 135 can be further promoted to optimize the early rice variety structure in Jiangbei District.

关键词： Early indica rice Direct seeding Yield

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