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外卖套餐中微量营养素检测方法探究

卫生研究 2024年第3期53卷 472-477,486页

作者：张添艾郭嘉琪胡子帆赵心悦孙维扬王璇邹晓莉四川大学华西公共卫生学院/四川大学华西第四医院卫生检验与检疫系成都610041 成都武侯卫教医学检验实验室有限责任公司成都610043

目的探究同时测定外卖套餐中维生素的方法,对微量营养素含量进行全面分析。方法57份外卖套餐样品经酶解、水解和提取后,采用高效液相色谱-紫外串联荧光检测法测定维生素;采用C18色谱柱(250 mm×4.6 mm,5μm)分离,水溶性维生素以离子对... 详细信息

目的探究同时测定外卖套餐中维生素的方法,对微量营养素含量进行全面分析。方法57份外卖套餐样品经酶解、水解和提取后,采用高效液相色谱-紫外串联荧光检测法测定维生素;采用C18色谱柱(250 mm×4.6 mm,5μm)分离,水溶性维生素以离子对酸性试剂为流动相,脂溶性维生素以甲醇为流动相,维生素B1、维生素B2、烟酸、烟酰胺和维生素A采用紫外检测,维生素B6和维生素E采用荧光检测。此外,参照GB 5009.268—2016《食品安全国家标准食品中多元素的测定》。采用电感耦合等离子体质谱法对外卖套餐中钙、镁、钠、钾、锌、硒和铜元素含量进行了测定。结果本方法灵敏度能达到微量营养素评价需求,维生素检出限为0.002~0.098 mg/100 g,定量限为0.007~0.327 mg/100 g,精密度良好(<10%),加标回收率为80.5%~103.8%(n=6)。检测结果显示,57份外卖套餐中微量营养素含量水平普遍较低,目标维生素检出率为21.1%~98.2%。结论本文建立的方法灵敏、准确,采集的外卖套餐中所测维生素和元素含量较低。

关键词：外卖套餐维生素元素微量营养素

Facile hydrothermal and sol-gel synthesis of novel Sn-Co/C composite as superior anodes for Li-ion batteries

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Chinese Science Bulletin 2014年第23期59卷 2875-2881页

作者： xiaoli zou Xianhua Hou Zhibo Cheng Yanling Huang Min Yue Shejun Hu Laboratory of Quantum Engineering and Quantum Materials School of Physics and Telecommunication EngineeringSouth China Normal University Engineering Research Center of Materials and Technology for Electrochemical Energy Storage (Ministry of Education) BTR New Energy Materials Co.LTD

As an anode material in lithium ion battery,the Sn-Co/C composite electrode materials have been successfully synthesized by hydrothermal and sol-gel methods,*** resultant composites were mainly composed of Sn-based oxides,nanometer Sn-Co alloy and *** and Co,acting as buffer materials,can accommodate to the large volume change of active Sn during the discharge-charge process,thus improving the cycling *** charge/discharge curves revealed the excellent cycle performance for samples synthesized by both methods,composites obtained by the sol-gel showed a better dispersion effect of nanoparticles on the carbon matrix and possessed much more improved stable capacity with*624.9 mAh g-1over 100 cycles and that by hydrothermal method only exhibited*299.3 mAh ***,the Sn-Co/C composites obtained by sol-gel synthesis method could be a perfect candidate for anode material of Li-ion storage battery.

关键词：复合材料锂离子电池合成样品阳极材料凝胶法水热法溶胶循环稳定性

A novel high-Cr CoNi-based superalloy with superior high-temperature microstructural stability, oxidation resistance and mechanical properties

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International Journal of Minerals,Metallurgy and Materials 2024年第6期31卷 1373-1381页

作者： Xiaorui Zhang Min zou Song Lu Longfei Li xiaoli Zhuang Qiang Feng Beijing Advanced Innovation Center for Materials Genome Engineering State Key Laboratory for Advanced MetalsUniversity of Science and Technology BeijingBeijing 100083China

A novel multicomponent high-Cr CoNi-based superalloy with superior comprehensive performance was prepared,and the evaluation of its high-temperature microstructural stability,oxidation resistance,and mechanical properties was conducted mainly using its cast polycrystalline *** results disclosed that the morphology of theγ′phase remained stable,and the coarsening rate was slow during the long-term aging at 900–1000℃.The activation energy forγ′precipitate coarsening of alloy 9CoNi-Cr was(402±51)kJ/mol,which is higher compared with those of CMSX-4 and some other Ni-based and Co-based ***,there was no indica-tion of the formation of topologically close-packed phases during this *** these factors demonstrated the superior microstructural stability of the *** mass gain of alloy 9CoNi-Cr was 0.6 mg/cm^(2) after oxidation at 1000℃ for 100 h,and the oxidation resistance was comparable to advanced Ni-based superalloys CMSX-4,which can be attributed to the formation of a continuous Al_(2)O_(3) protective ***,the compressive yield strength of this cast polycrystalline alloy at high temperatures is clearly higher than that of the conventional Ni-based cast superalloy and the compressive minimum creep rate at 950℃ is comparable to that of the conventional Ni-based cast superalloy,demonstrating the alloy’s good mechanical properties at high *** is partially because high Cr is bene-ficial in improving theγandγ′phase strengths of alloy 9CoNi-Cr.

关键词： CoNi-based superalloys microstructure coarsening oxidation mechanical properties

Improve Chinese Aspect Sentiment Quadruplet Prediction via Instruction Learning Based on Large Generate Models

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Computers, Materials & Continua 2024年第3期78卷 3391-3412页

作者： Zhaoliang Wu Yuewei Wu xiaoli Feng Jiajun zou Fulian Yin College of Information and Communication Engineering Communication University of ChinaBeijing100024China The State Key Laboratory of Media Convergence and Communication Communication University of ChinaBeijing100024China Department of Electronic Engineering Tsinghua UniversityBeijing100084China

Aspect-Based Sentiment Analysis(ABSA)is a fundamental area of research in Natural Language Processing(NLP).Within ABSA,Aspect Sentiment Quad Prediction(ASQP)aims to accurately identify sentiment quadruplets in target sentences,including aspect terms,aspect categories,corresponding opinion terms,and sentiment ***,most existing research has focused on English ***,while ASQP has seen significant progress in English,the Chinese ASQP task has remained relatively *** inspiration from methods applied to English ASQP,we propose Chinese generation templates and employ prompt-based instruction learning to enhance the model’s understanding of the task,ultimately improving ASQP performance in the Chinese ***,under the same pre-training model configuration,our approach achieved a 5.79%improvement in the F1 score compared to the previously leading ***,when utilizing a larger model with reduced training parameters,the F1 score demonstrated an 8.14%***,we suggest a novel evaluation metric based on the characteristics of generative models,better-reflecting model *** results validate the effectiveness of our approach.

关键词： ABSA ASQP LLMs sentiment analysis Chinese comments

Observation system simulation experiments using an ensemble-based method in the northeastern South China Sea

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Journal of Oceanology and Limnology 2020年第6期38卷 1729-1745页

作者： GENG Wu CHENG Feng XIE Qiang zou xiaoli HE Weihong WANG Zhaozheng SHU Yeqiang CHEN Gengxin LIU Danian YE Dong WANG Ruiwen LIU Chuanyu State Key Laboratory of Tropical Oceanography South China Sea Institute of OceanologyChinese Academy of Sciences(SCSIO)Guangzhou 510301China China General Nuclear Power Yangjiang Nuclear Power Co.Ltd.Yangjiang 529941China Laboratory for Regional Oceanography and Numerical Modeling Qingdao National Laboratory for Marine Science and TechnologyQingdao 266071China Institute of Deep-sea Science and Engineering Chinese Academy of SciencesSanya 572000China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China Public Weather Service Center of China Meteorological Administration Beijing 100081China National Meteorological Center of China Meteorological Administration Beijing 100081China Key Laboratory of Ocean Circulation and Waves Institute of OceanologyChinese Academy of Sciences(IOCAS)Qingdao 266071China Marine Dynamic Process and Climate Function Laboratory Pilot National Laboratory for Marine Science and Technology(Qingdao)(QNLM)Qingdao 266237China

An ensemble-based method for the observation system simulation experiment(OSSE)is employed to design optimal observation stations and assess the present observation stations in the northeastern South China Sea(SCS).We employed the 20-year(1992-2012)sea surface height(SSH)data to design an array to monitor the intraseasonal to interannual *** results show that the most key region was found located at the northwest of Luzon Island(LI)where the energetic Luzon cyclonic gyre(LCG)occurs;other key regions include the edge of the LCG,the northwest of the Luzon Strait(LS),and the southwest of Taiwan,*** contrast,we found that the present observation stations might oversample at the northwest of the LS and undersample at the northwest of *** addition,the optimal stations perform better in a larger area than the present *** vertical direction,the key layer is located within the upper 200-m depth,of which the surface and subsurface layers are most valuable to the observing system.

关键词： assimilation observation system simulation experiment(OSSE) ensemble South China Sea(SCS) Kalman filter

LsABF4基因在叶用莴苣抽薹中的作用分析

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北京农学院学报 2024年第2期39卷 49-55页

作者：朱俊萱邹小丽朱嘉齐王惠玉刘超杰韩莹琰郝敬虹农业应用新技术北京市重点试验室/植物生产国家级实验教学示范中心/北京农学院植物科学技术学院北京102206

【目的】探明LsABF4基因在叶用莴苣高温诱导抽薹过程中的作用机制,为将来培育抗抽薹叶用莴苣品种提供理论支持。【方法】以易抽薹叶用莴苣品种‘GB-30’为材料,采用同源克隆的方法克隆出LsABF4基因,运用生物信息学软件和网站在线对基因... 详细信息

【目的】探明LsABF4基因在叶用莴苣高温诱导抽薹过程中的作用机制,为将来培育抗抽薹叶用莴苣品种提供理论支持。【方法】以易抽薹叶用莴苣品种‘GB-30’为材料,采用同源克隆的方法克隆出LsABF4基因,运用生物信息学软件和网站在线对基因进行比对、分析和预测编码的氨基酸序列构成、蛋白质结构等,通过病毒诱导基因沉默技术分析LsABF4基因在叶用莴苣抽薹中的作用。【结果】LsABF4基因的CDS序列全长为978 bp,共编码325个氨基酸,蛋白相对分子量为35885.21 Da,理论等电点值为9.47,不稳定指数为48.96,该蛋白为不稳定蛋白,蛋白平均疏水指数为-0.939,是亲水蛋白;该转录因子含有bZIP_plant_BZIP46保守结构域,并且其高级结构主要由α螺旋和无规则卷曲两种结构组成;对基因LsABF4瞬时沉默后,分析茎长测量数据发现,沉默组植株茎长明显高于对照组和空载组。通过石蜡切片技术对茎尖花芽分化的情况进行观察分析,结果呈现出对照组和空载组的植株茎尖生长点呈锥形,花芽尚未分化,而沉默组植株茎尖生长点呈扁平状,已进入花芽分化期。表明通过病毒诱导技术对LsABF4沉默可以促进叶用莴苣抽薹。【结论】LsABF4基因是典型的ABF转录因子,具有ABF蛋白家族的功能,对叶用莴苣抽薹过程起抑制作用。

关键词：叶用莴苣 LsABF4 抽薹瞬时沉默

The diagnostic value of transrectal ultrasonographic features in prostate cancer

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The Chinese-German Journal of Clinical Oncology 2012年第4期11卷 229-232页

作者： xiaoli zou Guang Yang Hui Wang Department of Ultrasonography The First Affiliated Hospital of Dalian Medical UniversityDalian 116011China

Objective:The aim of the study was to detect the valuable ultrasonographic features in diagnosing prostate ***:The patients who underwent transrectal ultrasound in the period from May 2005 to October 2009 at the 1st Affiliated Hospital of Dalian Medical University,China,were included,with needle biopsy diagnosis for patients with the prostate cancer and prostatic ***-four cases of prostate cancer were diagnosed as adenocarcinoma,compared with 51 cases diagnosed as prostatic *** analysis of patients with transrectal ultrasound were done,comparing the difference between the two groups in the echo level (hypoechogenic),outlines (ill-defined margin),posterior acoustic attenuation,periphery halo,microcalcification incidence,the blood supply level,peak systolic velocity (Vs) and resistance index (RI).Results:The ratios of hypoechogenic lesions in the prostate cancer group and prostatic hyperplasia group were 56.76% and 35.90%,respectively (P0.05).Vs of the two groups were (44.00 ± 15.30) cm/s and (17.32 ± 4.65) cm/s,respectively (P<0.05).RI of the two groups were 0.76 ± 0.10,and 0.51 ± 0.03 respectively (P<0.05).The significant correlation was designated in the blood supply level between the prostate cancer group and prostatic hyperplasia group (r=-0.388,P<0.01).Higher revascularization grade was seen in the prostate cancer group compared to benign prostatic hyperplasia ***:(1) The significant roles for diagnosing prostate cancer are hypoechogenic,irregular outlines,spiculation,microcalcification,high revascularization grade,posterior acoustic attenuation,high Vs and high RI.(2) It could no

关键词： transrectal ultrasound prostate cancer diagnosis

Pathological characteristics of posterior echo attenuation of papillary thyroid microcarcinoma and cystic degeneration of cervical lymph node metastasis

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The Chinese-German Journal of Clinical Oncology 2013年第7期12卷 332-335页

作者： xiaoli zou Chunxiang Huang Xiaojun Gao Department of Ultrasonography Dalian Municipal Friendship Hospital Department of Special Service 406 Clinical Department210 Hospital of the Chinese People's Liberation Army

Objective: The aim of our study was to evaluate the pathological features of posterior echo attenuation of papillary thyroid microcarcinoma (PTMC) and cystic degeneration of cervical lymph node metastasis. Methods: We retrospectively evaluated the ultrasound results from 36 cases of PTMC with 20 nodules of cystic degeneration of cervical lymph node metastasis and correlated the results with the histopathologic findings. Results: The preliminary study indicated certain correlation between histopathologic findings and ultrasound results of posterior echo attenuation of papillary thyroid microcarcinoma and cystic degeneration of cervical lymph node metastasis. Conclusion: Posterior echo attenuation detected by ultrasound was associated with fibrous structures in PTMC nodules, while cystic degeneration and papillary changes of cervical lymph node metastasis in PTMC showed liquefactive necrosis, degenerative changes and enlarged follicular of nodular structures.

关键词： papillary thyroid microcarcinoma (PTMC) attenuation cystic degeneration of lymph nodes

The clinical study of ultrasound-guided intra-hysteromyoma injection of ethyl alcohol absolute combined with HIFU in the treatment of uterine fibroids

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Oncology and Translational Medicine 2018年第5期4卷 203-207页

作者： xiaoli zou Baixin Sun Li Jia Xiaobei Liu Department of Ultrasound Imaging The Affiliated Dalian Friendship Hospital of Dalian Medicial University Department of Hepatobiliary The Affiliated Dalian Friendship Hospital of Dalian Medicial University

Objective The aim of this study was to investigate the energy deposition in the target area of high intensity focused ultrasound （HIFU） with ultrasound-guided intra-hysteromyoma injection of ethyl alcohol absolute Methods Eighty patients with hysteromyomas were randomly divided into two groups： group HIFU （group H） and group HIFU combined with ullrasound-guided inlra-hysteromyoma injectionn of ethyl alcohol absolute （group E ＋ H）. Patients in group E ＋ H received an ullrasound-guided injection of absolute ethyl alcohol 1 h before HIFU treatment. The irradiation time, irradiation dose, energy efficiency factor （radiation energy required for ablation of a myoma per unit of volume）, grey variation, pain score, and adverse reactions were compared between the two groups. An independent sample t-test was used with a two- tailed P-value of 〈 0.05. Results The irradiation time, irradiation dose, and energy efficiency factor were significantly lower in group E ＋ H than those in group H （P 〈 0.05）. The hysteromyomas of patients in group E＋H appeared as dominantly hyperechoic masses, and those of patients in group H appeared as hyperechoic tissue （non- mass）. The incidence of adverse reactions and pain score were higher in group H than those in group E ＋ H （P 〈 0.05）. Conclusion Ultrasound-guided inlra-hysteromyoma injection of ethyl alcohol absolute can enhance the energy deposition of HIFU in the uterine fibroids, improve the treatment efficiency, shorten the treatment time, reduce the treatment dose, and reduce the pain and complications for the patients.

关键词： high-intensity focused ultrasonography (HIFU) absolute ethyl alcohol hysteromyomas uterine fibroids energy efficiency factor