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Research in Astronomy and Astrophysics 2017年第3期17卷 1-12页

作者： Jia Zhang Sheng-bang Qian jian-Duo he Yunnan Observatories Chinese Academy of Sciences Kunming 650216 China Key Laboratory of the Structure and Evolution of Celestial Objects Chinese Academy of Sciences Kunming 650216 China

Four candidates of eclipsing multiples, based on new extraneous eclipses found on Kepler binary light curves, are presented and studied. KIC 7622486 is a double eclipsing binary candidate with orbital periods of 2.2799960 d and 40.246503 d. The two binary systems do not eclipse each other in the line of sight, but there is mutual gravitational influence between them which leads to the small but definite eccentricity of 0.0035（0.0022） associated with the short 2.2799960 d period orbit. KIC 7668648 is a hierarchical quadruple system candidate, with two sets of solid 203 4- 5 d period extraneous eclipses and another independent set of extraneous eclipses. A clear and credible extraneous eclipse is found on the binary light curve of KIC 7670485 which makes it a triple system candidate. Two sets of extraneous eclipses with periods of about 390 d and 220 d are found on KIC 8938628 binary curves, which not only confirm the previous conclusion of the 388.5 4- 0.3 triple system, but also indicate new additional objects that make KIC 8938628 a hierarchical quadruple system candidate. The results from these four candidates will contribute to the field of eclipsing multiples.

关键词： binaries eclipsing - techniques photometric - methods observational

外源脱落酸对干旱胁迫下狗牙根幼苗光合特性的影响

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草原与草坪 2024年第1期44卷 99-105页

作者：李舒琦许喆吴邦高任健代微然云南农业大学动物科学技术学院云南昆明650201 中国科学院生态环境研究中心城市与区域生态国家重点实验室北京100085 云南省巧家县崇溪镇农业农村和集体经济发展中心云南昭通654600

【目的】研究外源脱落酸(ABA)对干旱胁迫下狗牙根(Cynodon dactylon)光合特性的影响,为缓解狗牙根干旱损伤及抗旱栽培提供参考依据。【方法】利用聚乙二醇(Polyethylene glycol-6000,PEG-6000)模拟中度和重度干旱胁迫,研究干旱胁迫和外... 详细信息

【目的】研究外源脱落酸(ABA)对干旱胁迫下狗牙根(Cynodon dactylon)光合特性的影响,为缓解狗牙根干旱损伤及抗旱栽培提供参考依据。【方法】利用聚乙二醇(Polyethylene glycol-6000,PEG-6000)模拟中度和重度干旱胁迫,研究干旱胁迫和外源ABA(200,500μmol/L)对狗牙根幼苗光合色素、净光合速率、气孔导度和叶绿素荧光参数等光合指标的影响。【结果】干旱胁迫降低了狗牙根叶绿素含量、净光合速率、最大荧光(Fm)、可变荧光(Fv)、电子传递速率(ETR),提高了光化学猝灭(qP)和非光化学猝灭(NPQ)(P<0.05)。外源ABA降低了干旱胁迫对光合的抑制作用,不过其效应与喷施浓度及干旱程度有关。中度干旱胁迫下,喷施500µmol/L ABA使叶绿素含量、PSII最大光化学量子产量(Fv/Fm)、qP显著提高(P<0.05);重度干旱胁迫下,外源500µmol/L ABA提高了狗牙根叶绿素含量、净光合速率和水分利用率,降低了胞间CO_(2)浓度(P<0.05),但对叶绿素荧光参数影响不显著。【结论】外源ABA可通过提高光合色素含量、水分利用率及光能转化效率等形式缓解干旱胁迫对狗牙根幼苗的伤害,使植株更好地适应干旱环境,其中喷施浓度为500µmol/L效果较好。

关键词：狗牙根干旱胁迫外源脱落酸光合特性

社会企业视域下张謇大生集团参与乡村产业振兴的启示

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江苏商论 2024年第1期 74-79页

作者：龙天帮南通大学经济与管理学院江苏南通226019

现阶段社会企业已成为推动乡村产业振兴的重要力量。张謇成立的大生企业集团参与南通地方产业建设的实践,对当前社会企业参与乡村产业振兴具有重要的启示价值。在分析论证大生企业集团的社会企业角色基础上,本文探讨了大生企业集团经营... 详细信息

现阶段社会企业已成为推动乡村产业振兴的重要力量。张謇成立的大生企业集团参与南通地方产业建设的实践,对当前社会企业参与乡村产业振兴具有重要的启示价值。在分析论证大生企业集团的社会企业角色基础上,本文探讨了大生企业集团经营的成功经验与失败教训,认为当前采用培养社会企业家、提升社会企业经营能力、形成品牌化、带农富农强农、科学筹划推进等措施,可进一步提升社会企业参与乡村产业振兴的能力,助力伟大事业。

关键词：张謇大生企业集团社会企业乡村产业振兴

影像组学在肝内胆管细胞癌诊断与评估中的研究进展

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中国CT和MRI杂志 2024年第2期22卷 169-172页

作者：谢朝邦汤子建黄薇贺廷坤石荣书赵开飞遵义医科大学附属医院放射科贵州遵义563000

肝内胆管细胞癌是仅次于肝细胞癌的第二大原发性肝脏恶性肿瘤。近年来,随着对肝内胆管细胞癌发生、发展机制研究的逐步深入,对其进行诊断和评估的技术不断增多、日益成熟,新的治疗方式不断涌现,其中影像组学这一新兴领域在肝内胆管细胞... 详细信息

肝内胆管细胞癌是仅次于肝细胞癌的第二大原发性肝脏恶性肿瘤。近年来,随着对肝内胆管细胞癌发生、发展机制研究的逐步深入,对其进行诊断和评估的技术不断增多、日益成熟,新的治疗方式不断涌现,其中影像组学这一新兴领域在肝内胆管细胞癌的诊断、病理分级、预后评估和治疗反应预测方面具有很大的潜力。本文就影像组学在肝内胆管细胞癌诊疗与评估中的研究进展进行综述。

关键词：肝内胆管细胞癌影像学诊断影像组学

Petrology,Zircon Chronology and Geochemistry of the Late Silurian Ophiolitic Mélanges and the Baiyunshan Forearc Complex in the Central Beishan Orogenic Belt,NE China

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Journal of Earth Science 2023年第2期34卷 444-455页

作者： Hou-Tian Xin jian Tian Xue-jian Teng Li-Xin Sun Guo-Zhen Zhang Yong Zhang bang-Fang Ren Shenyang Center China Geological SurveyShenyang 110086China Tianjin Center China Geological SurveyTianjin 300170China

The WNW-ESE-trending Baiyunshan ophiolitic mélange is exposed in the central Beishan orogenic belt(BOB),between the Hongliuhe-Niujuanzi and Xichangjing ophiolitic mélanges in the west and east,*** we present new petrological,geochemical,and zircon U-Pb age data for the Baiyunshan ophiolitic mélange and metamorphosed lithic sandstones of“the Baiyunshan Formation”.The Baiyunshan ophiolitic mélange is characterized by a block-in-matrix structure,and the blocks of ultramafic-mafic rocks are mainly pyroxenites,dunites,gabbros,and minor *** U-Pb dating yielded an emplacement age of 424.2±3.7 Ma for the *** ultramaficmafic rocks have geochemical features of supra-subduction zone-type ophiolites,including low Ti contents(TiO2=0.01 wt.%–0.35 wt.%),negative Nb-Ta anomalies,and U-shaped rare earth element patterns with positive Eu anomalies(δEu=0.99–3.25).“The Baiyunshan Formation”is exposed to the north of the ophiolitic mélange,and comprises mainly meta-cherts in its lower part and metasandstones and marbles in its upper *** of basalt are locally dispersed in the sand-slate *** ages of detrital zircons in the metamorphosed lithic sandstones range from 521 to 464 Ma,with an age peak of 500 Ma,which is similar to those of the Gongpoquan arc in the *** central Beishan orogenic belt experienced continuous subduction of the Hongliuhe-Xichangjing oceanic lithosphere in the Late Silurian,which produced the Baiyunshan forearc complex and supra-subduction zone-type ophiolite.

关键词： Beishan orogenic belt the Hongliuhe-Xichangjing Ocean the ultramafic-mafic rocks Late Silurian SSZ-type ophiolite Subduction and accretion geochemistry

带鲁尔帽螺口注射器调配PIVAS静脉推注成品注射液的稳定性考察

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中国实用医药 2024年第10期19卷 164-167页

作者：李国邦林英坚刘旦锋莫旱春刘萍东莞康华医院 523080

目的探讨静脉用药调配中心(PIVAS)应用带鲁尔帽螺口注射器调配静脉推注成品注射液的稳定性。方法在PIVAS水平层流台应用带鲁尔帽螺口注射器调配注射用艾司奥美拉唑钠、注射用帕瑞昔布钠、盐酸氨溴索注射液,并静脉推注样品,采用正压法... 详细信息

目的探讨静脉用药调配中心(PIVAS)应用带鲁尔帽螺口注射器调配静脉推注成品注射液的稳定性。方法在PIVAS水平层流台应用带鲁尔帽螺口注射器调配注射用艾司奥美拉唑钠、注射用帕瑞昔布钠、盐酸氨溴索注射液,并静脉推注样品,采用正压法检测密封性;并于0、1、2、4、6、8、24 h检测样品液的pH值和性状的变化情况。结果各样品注射液20 ml用带鲁尔帽螺口注射器在侧向力3 N、轴向力200 N和300 N的作用下30 s,均无出现渗漏现象。注射用艾司奥美拉唑钠、注射用帕瑞昔布钠、盐酸氨溴索注射液分别用一次性带鲁尔帽螺口注射器经20 ml 0.9%氯化钠注射液将其调配稀释,室温(实验条件25℃)条件下分别在0、1、2、4、6、8、24 h检测pH值,均表现稳定,未发生明显变化。注射用艾司奥美拉唑钠、注射用帕瑞昔布钠、盐酸氨溴索注射液分别用一次性带鲁尔帽螺口注射器经20 ml 0.9%氯化钠注射液将其调配稀释,室温(实验条件25℃)条件下分别在0、1、2、4、6、8、24 h时观察其澄明度和颜色变化,均表现为无色澄清状态,未发生颜色变化。结论药物在PIVAS环境下用带鲁尔帽螺口注射器调配成静脉推注注射液,其稳定性和密封性是可以得到保障的。

关键词：静脉用药调配中心静脉推注稳定性

Anti-corrosion performance of Si-surface-alloying NdFeB magnets obtained with magnetron sputtering and thermal diffusion

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Journal of Rare Earths 2023年第8期41卷 1203-1210,I0003页

作者： Jin Tao bang Liu Pengjie Zhang Guangqing Xu Jun Lv Jun Huang jian Yan Wei Sun Bingshan Li Dongmei Wang Yucheng Wu School of Materials Science and Engineering Hefei University of TechnologyHefei 230009China BGRIMM Technology Group Co. Ltd.Beijing 102600China National Engineering Research Center for Magnetic Materials Beijing 102600China Key Laboratory of Advanced Functional Materials and Devices of Anhui Province Anhui Provincial International S&T Cooperation Base for Advanced Energy MaterialsHefei University of TechnologyHefei 230009China

Si alloying in the surface layer of NdFeB magnets was realized by thermal diffusion combined with magnetron *** surface composition,phase structure and morphology of NdFeB(S-Si)specimens were characterized by an X-ray diffractometer,an X-ray photoelectron spectrometer and a field emission scanning electron microscope,*** corrosion resistance of bare NdFeB(S-Si)was analyzed by static full immersion corrosion test and electrochemical *** of sputtering and thermal diffusion on the microstructure and corrosion resistance of the surface layer were *** show that surface alloying layer can effectively improve the corrosion resistance of bare NdFeB with the optimized static total immersion corrosion test time in NdFeB(1S-Si)-800 of 36 h,which is much longer than that of the pristine NdFeB(less than 0.5 h).The E_(corr)of NdFeB(1S-Si)-800 positively shifts from-1.05 to-0.92 V,indicating that the corrosion tendency is obviously *** J_(corr)is1.45×10^(-6)A/cm^(2)which is 2 orders of magnitude lower than that of the pristine NdFeB(5.25×10^(-4)A/cm^(2)).The intergranular composite oxides existing in Nd-rich phase contribute to the enhancement of corrosion resistance of Si-surface-alloying NdFeB.

关键词： NdFeB magnets Si surface alloying Magnetron sputtering Thermal diffusion Corrosion resistance Rare earths

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基于OpenMv的目标控制与自动追踪系统

今日自动化 2024年第5期 160-163页

作者：王健王金玉王邦刘俊凯苑会远太原科技大学山西太原030000 中北大学山西太原030000

设计基于OpenMv的目标控制与自动追踪系统,以STM32F103芯片为核心,通过视觉模块OpenMv进行图像处理,实现边缘循迹功能,借助二维电动云台绑定激光笔进行模拟运动目标和自动追踪效果。STM32单片机通过计算路径的偏差,采用位置式PID算法实... 详细信息

设计基于OpenMv的目标控制与自动追踪系统,以STM32F103芯片为核心,通过视觉模块OpenMv进行图像处理,实现边缘循迹功能,借助二维电动云台绑定激光笔进行模拟运动目标和自动追踪效果。STM32单片机通过计算路径的偏差,采用位置式PID算法实现了红绿光斑轨迹的精准控制,同时使用声音模块和LED模块来实现声光提示。结果表明,该系统可应用于各种需要目标追踪的场景,具有较高的实用性。

关键词： STM32 OpenMv图像处理二维电动云台位置式PID

Effectiveness and Safety of Baidu Jieduan Granules for COVID-19: A Retrospective Observational Multicenter Study

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Chinese Journal of Integrative Medicine 2022年第10期28卷 885-893页

作者： XU Xiang-ru ZHANG Wen WU Xin-xin HUANG Ting-rong ZUO jian-guo SHAO Zhong ZHOU Shuang FANG bang-jiang Department of Emergency Longhua HospitalShanghai University of Traditional Chinese MedicineShanghai(200032)China Department of Emergency Huangshi Hospital of Traditional Chinese Medicine(Infectious Disease Hospital)HuangshiHubei Province(435004)China Department of Emergency the First Hospital of LaohekouLaohekouHubei Province(441899)China Department of Emergency Fushun Third HospitalFushunLiaoning Province(113004)China Acupuncture and Massage College Shanghai University of Traditional Chinese MedicineShanghai(201203)China Institute of Critical Care Shanghai University of Traditional Chinese MedicineShanghai(201203)China

Objective: To evaluate the effectiveness and safety of Baidu Jieduan Granules(BDJDG) to treat common type coronavirus disease 2019(COVID-19). Methods: This multicenter, retrospective, and observational clinical trial included 230 common COVID-19 patients in Leishenshan, Huangshi, and Laohekou Hospitals in Wuhan from January 21 to March 26, 2020. The included patients were further divided into two subgroups according to the use of supplemental oxygen, mild and moderate groups. During the first 14 d of hospitalization, all patients were administered BDJDG combined with conventional Western medicine, and observed for continuous 28 d. Primary outcomes were disease progression rate and discharge rate. Secondary outcomes included negative conversion time of nucleic acid, hospitalization duration, clinical symptom subsidence time, and symptom regression rate. Results: A total of 230 common COVID-19 patients were analyzed(138 in moderate group and 92 in mild group). By day 28, the disease progression rate was 4.3% and the discharge rate was 95.7%. All mild cases recovered and were discharged from hospital. The median negative conversion time of nucleic acid of all 230 COVID-19 patients was 12 d [inter-quartile range(IQR) 3.5–17], the median hospitalization duration was 15 d(IQR 12–20). The median time to fever, cough, and fatigue recovery was 4 d(IQR 2–6), 8 d(IQR 5–12), and 8 d(IQR 5–11), respectively. The recovery rate of fever, cough, and fatigue was 94.6%, 90.5%, and 93.5%. The median time to clinical improvement was 12 d(IQR 10–17). Compared with the baseline, total leukocyte, neutrophil, lymphocyte, and platelet counts were all increased significantly on days 7 and 14(P<0.01). C-reactive protein markedly increased on day 3 and significantly decreased on days 7 and 14(P<0.01). No serious adverse events occurred during treatment. Conclusion: BDJDG may be effective and safe for treatment of common type COVID-19.(Registration No. ChiCTR2000030836)

关键词： COVID-19 common type Baidu Jieduan Granule integrated Chinese and Western medicine

Artificial intelligence assisted pterygium diagnosis:current status and perspectives

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International Journal of Ophthalmology(English edition) 2023年第9期16卷 1386-1394页

作者： bang Chen Xin-Wen Fang Mao-Nian Wu Shao-Jun Zhu Bo Zheng bang-Quan Liu Tao Wu Xiang-Qian Hong jian-Tao Wang Wei-Hua Yang School of Information Engineering Huzhou UniversityHuzhou 313000Zhejiang ProvinceChina Zhejiang Province Key Laboratory of Smart Management and Application of Modern Agricultural Resources Huzhou 313000Zhejiang ProvinceChina College of Digital Technology and Engineering Ningbo University of Finance&EconomicsNingbo 315000Zhejiang ProvinceChina Huzhou Institute Zhejiang University of TechnologyHuzhou 313000Zhejiang ProvinceChina Shenzhen Eye Institute Shenzhen Eye HospitalJinan UniversityShenzhen 518040Guangdong ProvinceChina

Pterygium is a prevalent ocular disease that can cause discomfort and vision *** and accurate diagnosis is essential for effective ***,artificial intelligence(AI)has shown promising potential in assisting clinicians with pterygium *** paper provides an overview of AI-assisted pterygium diagnosis,including the AI techniques used such as machine learning,deep learning,and computer ***,recent studies that have evaluated the diagnostic performance of AI-based systems for pterygium detection,classification and segmentation were *** advantages and limitations of AI-assisted pterygium diagnosis and discuss potential future developments in this field were also *** review aims to provide insights into the current state-of-the-art of AI and its potential applications in pterygium diagnosis,which may facilitate the development of more efficient and accurate diagnostic tools for this common ocular disease.

关键词： pterygium intelligent diagnosis artificial intelligence deep learning machine learning