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基于SWOT分析的陕西省周至县猕猴桃产业经济效益提升策略

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农业工程 2024年第3期14卷 157-160页

作者：屈佳西安培华学院陕西西安710123

为了助力陕西省周至县猕猴桃产业的持续健康发展,立足于周至县猕猴桃产业发展现状,采用SWOT分析方法梳理产业发展的影响因素,找出其中的症结和痛点。研究发现,周至县猕猴桃产业尚未形成规模化生产,果品质量无法得到有效保障,落后的组织... 详细信息

为了助力陕西省周至县猕猴桃产业的持续健康发展,立足于周至县猕猴桃产业发展现状,采用SWOT分析方法梳理产业发展的影响因素,找出其中的症结和痛点。研究发现,周至县猕猴桃产业尚未形成规模化生产,果品质量无法得到有效保障,落后的组织经营方式严重影响了周至县猕猴桃产业的综合竞争力。为提升当地猕猴桃产业的经济效益,应强化政策引导,推动周至县猕猴桃产业标准化生产,重点培育具有品牌影响力的市场经营主体,利用电商平台做好品牌推广。

关键词：猕猴桃特色农产品 SWOT分析周至县

Corrigendum to“Polydopamine/poly(sulfobetaine methacrylate)Co-deposition coatings triggered by CuSO4/H2O2 on implants for improved surface hemocompatibility and antibacterial activity”[Bioactive materials 6(2021)2546-2556]

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Bioactive Materials 2022年第11期7卷 195-196页

作者： Zhongqiang Zhu Qiang Gao Ziyue Long Qiuyi Huo Yifan Ge Ntakirutimana Vianney Nishimwe Anodine Daliko Yongchun Meng jia qu Hao Chen Bailiang Wang School of Ophthalmology&Optometry Eye HospitalWenzhou Medical UniversityWenzhou325027China Central Laboratory Yantai Affliated Hospital of Binzhou Medical University717 Jinbu StreetYantaiShandong264100China

The authors regret to inform that Fig.3f is incorrect in the original article.A part of images of platelet adhesion on the PU and PU/PDA seemed to be duplicated with that on PU/PDA(Cu)/PSBMA surface.The authors had checked the original images and found the images were mistakenly taken from the same sample of PU/PDA(Cu)/PSBMA with continuous imaging.This correction does not change any description,results or conclusions of the original paper.

关键词： compatibility checked correction

国家治理现代化风险规制:算法中立原则的祛魅与调适

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理论与改革 2024年第4期 53-66页

作者：张爱军曲家谊西北政法大学网络政治传播研究院

国家治理现代化的衡量基准可以聚焦于制度、实践、主体三个层面,即治理制度不断完善、治理实践趋向智能、治理主体能力提升。以算法技术为核心的智能技术渗透到包含国家治理在内的各个领域,推动治理理念创新和治理流程再造。依据技术中... 详细信息

国家治理现代化的衡量基准可以聚焦于制度、实践、主体三个层面,即治理制度不断完善、治理实践趋向智能、治理主体能力提升。以算法技术为核心的智能技术渗透到包含国家治理在内的各个领域,推动治理理念创新和治理流程再造。依据技术中立原则,在实际应用中普遍认可算法中立原则,认为算法本身无价值判断及偏向。在功能、价值、责任及应用维度审思算法中立原则,其存在实践上的失偏和理论上的欠缺。信奉这一原则具有两面性:一方面有利于国家治理、算法技术优化制度、精准实践、解放主体;另一方面国家治理必然暗含一定程度的技术风险,可能导致制度欠缺、实践失偏、能力减弱等不良后果。应跨越算法中立原则,针对国家治理的需求与目标,在人、法律与技术三个层面设计特定框架对算法进行规制,消除算法赋能国家治理现代化中的技术隐忧。从算法中立转向“算法向善”,使算法“向善”原则与国家治理现代化的“善治”本质相契合。

关键词：算法算法中立国家治理现代化算法治理算法向善

Research on General-Purpose Brain-Inspired Computing Systems

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Journal of Computer Science & Technology 2024年第1期39卷 4-21页

作者：渠鹏纪兴龙陈嘉杰庞猛李宇晨刘晓义张悠慧 Department of Computer Science and Technology Tsinghua UniversityBeijing 100084China Department of Precision Instrument Tsinghua UniversityBeijing 100084China

Brain-inspired computing is a new technology that draws on the principles of brain science and is oriented to the efficient development of artificial general intelligence(AGI),and a brain-inspired computing system is a hierarchical system composed of neuromorphic chips,basic software and hardware,and algorithms/applications that embody this tech-nology.While the system is developing rapidly,it faces various challenges and opportunities brought by interdisciplinary research,including the issue of software and hardware fragmentation.This paper analyzes the status quo of brain-inspired computing systems.Enlightened by some design principle and methodology of general-purpose computers,it is proposed to construct"general-purpose"brain-inspired computing systems.A general-purpose brain-inspired computing system refers to a brain-inspired computing hierarchy constructed based on the design philosophy of decoupling software and hardware,which can flexibly support various brain-inspired computing applications and neuromorphic chips with different architec-tures.Further,this paper introduces our recent work in these aspects,including the ANN(artificial neural network)/SNN(spiking neural network)development tools,the hardware agnostic compilation infrastructure,and the chip micro-archi-tecture with high flexibility of programming and high performance;these studies show that the"general-purpose"system can remarkably improve the efficiency of application development and enhance the productivity of basic software,thereby being conductive to accelerating the advancement of various brain-inspired algorithms and applications.We believe that this is the key to the collaborative research and development,and the evolution of applications,basic software and chips in this field,and conducive to building a favorable software/hardware ecosystem of brain-inspired computing.

关键词： brain-inspired computing neuromorphic chip compiler spiking neural network

刺激响应型SERS探针在分子医学领域的应用

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分析测试学报 2024年第1期43卷 44-57页

作者：徐逸婷罗奥雅曲家毅肖嘉祥董倩湖南科技大学化学化工学院湖南湘潭411201 湖南大学化学化工学院分子科学与生物医学湖南省重点实验室湖南长沙410082 湖南大学化学化工学院化学生物传感与计量学国家重点实验室湖南长沙410082

在众多分子医学工具中,刺激响应型光学探针可根据特定的外部刺激改变其光学特性,提高检测的选择性和分辨率,为疾病的诊断、治疗、愈后监测提供了有力的支持。表面增强拉曼散射(SERS)光谱技术基于表面等离子共振原理,能够在纳米尺度上增... 详细信息

在众多分子医学工具中,刺激响应型光学探针可根据特定的外部刺激改变其光学特性,提高检测的选择性和分辨率,为疾病的诊断、治疗、愈后监测提供了有力的支持。表面增强拉曼散射(SERS)光谱技术基于表面等离子共振原理,能够在纳米尺度上增强吸附在SERS基底上的分子的拉曼信号,显示出分子的结构信息,具有高准确度、多待测物同时检测的优点。大量研究表明,设计构建刺激响应型SERS(SR-SERS)探针,能够进一步提高检测的选择性和成像分辨率,同时利用靶向修饰和微创提取可获得检测对象有价值的实时信息,从而使该技术能够被广泛应用于分子医学领域。该文介绍了不同种类SR-SERS探针的基本原理和构建方法,就其近五年在分子医学领域的应用进展进行了概述,并对其在分子医学领域的发展趋势进行了讨论。

关键词：刺激响应 SERS探针分子医学应用

Palynological assemblages and paleoenvironmental evolution in the Gyirong Basin since Middle Miocene

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水性丙烯酸树脂对PBAT/淀粉复合材料性能影响

ACTA PETROLOGICA SINICA 2024年第5期40卷 1418-1428页

作者： Liu jia Song Ai Zhang XinWen Gao Yi Chen LinLin Liu Binxu Su Tao Chengdu Univ Technol Inst Sedimentary Geol MNR Key Lab Deep Time Geog & Environm Reconstruct Chengdu 610059 Peoples R China Chinese Acad Sci CAS Key Lab Trop Forest Ecol Xishuangbanna Trop Bot Garden Mengla 666303 Peoples R China Yunnan Univ Sch Earth Sci Kunming 650500 Yunnan Peoples R China Univ Bristol Sch Geog Sci Bristol BS8 1QU Avon England

The formation and evolution of the Himalaya orogeny, resulted from the collision between the Indian and Eurasian plates, has long captivated researchers in earth and life sciences. Late Cenozoic fluvio.lacustrine sedimentary basins, distributed along the Southern Tibet Detachment System on the northern slope of the Himalaya, have documented the evolution of the orogeny and paleoenvironmental changes. This study presents palynological analysis on the Danzengzhukang Formation, Woma Formation and Gongba Formation in the Gyirong Basin in the central Himalaya, to explore the sedimentary stratigraphy of the basin and the processes of Himalaya uplift and environmental effects. Based on palynological analysis, the deposition age of the Danzengzhukang Formation is revised to the Middle Miocene. Palynological assemblages reveal that since Middle Miocene, vegetation in the Gyirong Basin has transitioned from a mixed coniferous and broad.leaved forest to sparse woodlands and grasslands in Late Miocene. Subsequently, during the late Late Miocene and Pliocene, it evolved into alpine meadows, eventually forming the present.day alpine shrub and meadow vegetation since the Early Pleistocene. Paleoelevation analysis results indicate that the elevation of the Gyirong Basin has remained relatively similar to the present elevation since Middle Miocene, with no significant uplift during the deposition of the Danzengzhukang Formation and Woma Formation

关键词： ENVIRONMENTAL-CHANGES TIBETAN PLATEAU UPLIFT MONSOON ORIGIN AGE

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化工进展 2024年第6期43卷 3268-3276页

作者：屈超刘俊红贾彬黄勇四川化工职业技术学院应用化工学院四川泸州646005 宜宾学院材料与化学工程学部四川宜宾644000

研究了四种水性丙烯酸树脂对聚对苯二甲酸-己二酸丁二酯(PBAT)/淀粉复合材料性能的影响,选择最佳水性丙烯酸树脂进一步研究其用量对复合材料性能的影响。通过万能拉伸测试仪、熔体流动速率仪、接触角测试仪、差式扫描量热仪、热失重分... 详细信息

研究了四种水性丙烯酸树脂对聚对苯二甲酸-己二酸丁二酯(PBAT)/淀粉复合材料性能的影响,选择最佳水性丙烯酸树脂进一步研究其用量对复合材料性能的影响。通过万能拉伸测试仪、熔体流动速率仪、接触角测试仪、差式扫描量热仪、热失重分析仪对复合材料力学性能、熔体流动性能、亲水性能、热性能进行了分析;采用红外光谱仪、偏光显微镜对PBAT/淀粉复合材的分子结构与微观组织形貌进行了表征。研究结果表明:玻璃化温度较低的水性丙烯酸树脂对淀粉的改性效果更佳;当水性丙烯酸树脂7168(B7168)用量为25.2g时,复合材料拉伸强度和断裂伸长率有最佳值,较空白样提高10.8%和38.5%;随B7168的增加,复合材料熔体流动速率先减小后趋于平缓,亲水性能增加,对PBAT的结晶和熔融温度影响不明显,对球晶形貌影响不大,但使球晶平均直径略有减小,3000~3600 cm^(-1)的红外响应峰强度有增加的趋势,波峰略向低波数方向移动;热失重显示B7168的加入,使体系热分解起始温度提前,700℃残余量增加。

关键词：聚对苯二甲酸-己二酸丁二酯淀粉水性丙烯酸树脂可降解塑料

难浮煤−极性捕收剂相互作用研究新视角:分子对接与诱导契合效应

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煤炭科学技术 2024年第3期52卷 283-290页

作者：蘧鹏程夏阳超薛志刚邢耀文桂夏辉田佳中国矿业大学化工学院江苏徐州221116 中国矿业大学国家煤加工与洁净化工程技术研究中心江苏徐州221116 中南大学资源加工与生物工程学院湖南长沙410083

研究煤泥与浮选药剂间的相互作用将是浮选过程强化的热点和难点,针对难浮煤表面强亲水的化学结构特性,将生物医药领域诱导契合效应引入到难浮煤−极性捕收剂的相互作用研究中。基于煤样性质检测结果,构建了3D煤分子结构,采用原型分子(Pro... 详细信息

研究煤泥与浮选药剂间的相互作用将是浮选过程强化的热点和难点,针对难浮煤表面强亲水的化学结构特性,将生物医药领域诱导契合效应引入到难浮煤−极性捕收剂的相互作用研究中。基于煤样性质检测结果,构建了3D煤分子结构,采用原型分子(Protomol)技术搜索并表示煤分子活性口袋,在活性口袋中搜索极性捕收剂与难浮煤的分子对接最优构象,根据极性药剂与煤分子相互作用最优构象的结合能大小,分析分子对接和诱导契合效应研究结果与浮选结果之间的对应性关系。结果表明分子对接结果与难浮煤可燃体回收率均呈现出十二醇<十二醛<十二酸甲酯的规律,浮选可燃体回收率与分子对接结合能绝对值、煤分子诱导契合效应呈现明显的正相关关系,揭示了分子对接对浮选药剂筛选的指导作用。根据分子对接构型可知结合能存在差异性归因于π-CH作用和空间位阻作用的不同。进而将药剂分子的三维空间进行固定,采用分子力学模拟对三种极型捕收剂与煤分子间“诱导契合效应”进行探索,发现十二酸甲酯与煤分子活性区域能够产生更大的相互作用,煤分子活性区域对十二酸甲酯的诱导效应、包裹性更强,因而在浮选过程中效果更好。采用分子对接和诱导契合效应研究煤分子与药剂相互作用,可为浮选捕收剂的快速筛选提供技术途径和科学指导。

关键词：难浮煤极性捕收剂分子对接对接打分方法诱导契合

A novel ophthalmic viscosurgical devicefree phakic intraocular lens implantation makes myopic surgery safer

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Eye and Vision 2020年第1期7卷 171-179页

作者： An-Peng Pan Li-Jin Wen Xu Shao Kai-Jing Zhou Qin-Mei Wang jia qu A-Yong Yu The Eye Hospital of Wenzhou Medical University 270 Xueyuan West Road

Purpose:To assess the efficacy and safety of a novel ophthalmic viscosurgical device-free(OVD-free)method for posterior chamber phakic intraocular lens(PIOL)implantation in myopic eyes.Methods:In this retrospective cohort study,the medical records of myopic eyes that underwent PIOL(Implantable Collamer Lens,ICL)implantation for myopia correction at the Eye Hospital of Wenzhou Medical University between May 2015 and March 2017 were reviewed.A total of 49 eyes with complete data that met follow up requirements(2 h,1 day,1 week,3 months postoperatively)were recruited.Based on the surgical techniques used,the eyes were divided into the OVD-free method group and the standard method group.The clinical data,including intraocular pressure(IOP),corrected distance visual acuity(CDVA)and spherical equivalent(SE),at each follow-up were collected for comparison.Endothelial cell loss and complications were also investigated.Results:Twenty-one eyes received the standard method,and 28 eyes received the OVD-free method.A rise in IOP>22 mmHg at 2 h was noted in 14 eyes(66.7%)in the standard group and none(0%)in the OVD-free group(p<0.001).The rise in IOP from baseline was significantly higher at 2 h in the standard group(10.5±5.2 mmHg vs.2.2±3.3 mmHg,difference:8.3,95%CI 5.8 to 10.8;p<0.001).There was a significant difference in the time course of LogMAR CDVA changes between the two groups(p=0.047).The LogMAR CDVA was significantly better in the OVD-free method group compared to the standard group at 1 day(−0.076,95%CI−0.134 to−0.018;p=0.012),1 week(−0.071,95%CI−0.135 to−0.007;p=0.03),but not at 3 months(−0.046,95%CI−0.107 to 0.015;p=0.134).There was no significant difference in the time course of SE changes between the two groups(p=0.471;p=0.705).In the OVD-free group,mean endothelial cell loss was 4.6%at 3 months(2522±281 vs.2407±226 cells/mm^(2),difference:-115,95%CI−295 to 65;p=0.187).No complications were reported in both groups except for the early IOP elevation in the standard group during the observation period.Conclusions

关键词： Phakic intraocular lens implantation Ophthalmic viscosurgical device-free Intraocular pressure Complications