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Influence of dissolved oxygen content on oxidative stability of linked polymer solution

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Petroleum Science 2009年第4期6卷 421-425页

作者： Zhao-xia Dong mei-qin lin Jian Xin Ming-yuan Li China Univ Petr Enhanced Oil Recovery Res Ctr Beijing 102249 Peoples R China

The influence of dissolved oxygen content on the oxidative stability of a linked polymer solution (LPS) was studied by micro-filtration, dynamic light scattering and viscosity measurements. The results showed that at the same temperature, the degree of the oxidative degradation of the LPS increased and the rapidity of the oxidative degradation was accelerated with the increase of the dissolved oxygen content. Consequently, the size of linked polymer coils (LPCs) of the LPS became small, and the plugging capability of the LPS decreased. At a fixed content of dissolved oxygen, with increasing degradation temperature, almost the same results were observed, namely, an increased degree of oxidative degradation, accelerated rapidity of the oxidative degradation and decreased plugging capacity, with decreased oxidative stability of LPS. At 90 °C, in the presence of oxygen, LPS lost its plugging capability after having been degraded for a period of time. But at 40 °C, LPS with low dissolved oxygen content could be stable for a long time. The decreased plugging ability of LPS after oxidative degradation is mainly caused by the decreased size and number of the LPCs due to the breaking of hydrolyzed polyacrylamide (HPAM) molecule segments and the structural changing of HPAM molecules.

关键词： linked polymer solution HPAM content of dissolved oxygen degradation stability

Electrocatalytic cleavage of a lignin β-O-4 model compound and coupling with nitrogen-containing aromatics using Prussian blue analogue-derived nickel–cobalt spinel

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Journal of Energy Chemistry 2025年第1期100卷 628-636页

作者： Yi Qi Xueying Chen Bowen Liu Xuliang lin Xueqing Qiu Yanlin qin Guangdong Provincial Key Laboratory of Plant Resources Biorefinery School of Chemical Engineering and Light Industry Guangdong University of Technology Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center Guangdong Basic Research Center of Excellence for Ecological Security and Green Development Guangdong University of Technology

Electrochemical conversion of lignin for the production of high-value heterocyclic aromatic compounds has great *** demonstrate the targeted synthesis and cation modulation of NiCo2O4spinel nanoboxes,synthesized via cation exchange and calcination *** catalysts exhibit excellent efficacy in the electrocatalytic conversion of lignin model compounds,specifically 2-phenoxy-1-phenylethanol,into nitrogen-containing aromatics,achieving high conversion rates and *** catalysts were synthesized via a cation exchange and calcination oxidation process,using Prussian blue nanocubes as *** porous architecture and polymetallic composition of the NiCo2O4spinel demonstrated superior performance in electrocatalytic oxidative coupling,achieving a 99.2 wt%conversion rate of the 2-phenoxy-1-phenylethanol with selectivities of 37.5 wt%for quinoline derivatives and 31.5 wt%for *** innovations include the development of a sustainable one-pot synthesis method for quinoline derivatives,the elucidation of a multistage reaction pathway involving CAO bond cleavage,hydroxyaldol condensation,and CAN bond formation,and a deeper mechanistic understanding derived from DFT *** work establishes a new strategy for lignin valorization,offering a sustainable route to produce high-value nitrogen-containing aromatics from renewable biomass under mild conditions,without the need for additional reagents.

关键词： Spinel Biomass valorization Electrocatalysis Lignin oxidation Coupling

Multi-model ensemble learning for battery state-of-health estimation:Recent advances and perspectives

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Journal of Energy Chemistry 2025年第1期100卷 739-759页

作者： Chuanping lin Jun Xu Delong Jiang Jiayang Hou Ying Liang Zhongyue Zou Xuesong mei State Key Laboratory for Manufacturing Systems Engineering Xi'an Jiaotong University Shaanxi Key Laboratory of Intelligent Robots School of Mechanical Engineering Xi'an Jiaotong University Department of Electrical Engineering and Automation Luoyang Institute of Science and Technology School of Mechanical Engineering Hangzhou Dianzi University

The burgeoning market for lithium-ion batteries has stimulated a growing need for more reliable battery performance monitoring. Accurate state-of-health(SOH) estimation is critical for ensuring battery operational performance. Despite numerous data-driven methods reported in existing research for battery SOH estimation, these methods often exhibit inconsistent performance across different application scenarios. To address this issue and overcome the performance limitations of individual data-driven models,integrating multiple models for SOH estimation has received considerable attention. Ensemble learning(EL) typically leverages the strengths of multiple base models to achieve more robust and accurate outputs. However, the lack of a clear review of current research hinders the further development of ensemble methods in SOH estimation. Therefore, this paper comprehensively reviews multi-model ensemble learning methods for battery SOH estimation. First, existing ensemble methods are systematically categorized into 6 classes based on their combination strategies. Different realizations and underlying connections are meticulously analyzed for each category of EL methods, highlighting distinctions, innovations, and typical applications. Subsequently, these ensemble methods are comprehensively compared in terms of base models, combination strategies, and publication trends. Evaluations across 6 dimensions underscore the outstanding performance of stacking-based ensemble methods. Following this, these ensemble methods are further inspected from the perspectives of weighted ensemble and diversity, aiming to inspire potential approaches for enhancing ensemble performance. Moreover, addressing challenges such as base model selection, measuring model robustness and uncertainty, and interpretability of ensemble models in practical applications is emphasized. Finally, future research prospects are outlined, specifically noting that deep learning ensemble is poised to advance ens

关键词： Contrastive Learning

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卵巢上皮癌80例临床分析

中外医疗 2017年第6期36卷 80-81,84页

作者：秦美林内蒙古包钢医院肿瘤内科内蒙古包头014010

目的总结分析80例卵巢上皮癌,探讨卵巢上皮癌的临床特点,治疗方法,及预后相关因素。方法回顾性分析2010年1月—2015年1月该院收治的80例卵巢上皮癌的临床资料,总结卵巢癌的发病年龄、临床症状、辅助检查、病理类型、FIGO分期、治疗方法... 详细信息

目的总结分析80例卵巢上皮癌,探讨卵巢上皮癌的临床特点,治疗方法,及预后相关因素。方法回顾性分析2010年1月—2015年1月该院收治的80例卵巢上皮癌的临床资料,总结卵巢癌的发病年龄、临床症状、辅助检查、病理类型、FIGO分期、治疗方法的特点,并分析各因素与预后的相关性。结果 (1)发病年龄为21~83岁,平均52.5岁,50~59岁患者最多;(2)临床表现以腹胀、腹痛、腹部包块为主;(3)卵巢上皮癌的彩色多普勒超声图表现以囊实性占多数,对卵巢上皮癌的诊断率达87.50%;(4)病理类型分为浆液性、粘液性的癌、子宫内膜样癌、透明细胞癌及其他,所占比例分别为57.50%,20.0%,13.75%,8.75%,3.75%;(5)根据FIGO分期,I期20例(25.00%),II期9例(11.25%),III期36例(45.00%),IV期15例(18.75%);(6)治疗方法以手术治疗为主,术后辅以化疗。结论 (1)卵巢上皮癌从40岁开始发病率上升,50~59岁达高峰;(2)卵巢上皮癌的早期临床症状不典型,以腹痛、腹胀、腹部包块为主;(3)卵巢上皮癌的治疗以手术为主,化疗为辅,理想的肿瘤减灭术和术后>6个疗程的化疗是提高生存率的重要因素;(4)FIGO分期、手术彻底性、术后化疗程数是影响预后的关键。

关键词：卵巢上皮癌临床特点预后

Effect of 5F from Pteri Sem Ipinnata L on Invasion and Metastasis of Human Choriocarcinoma JAR Cells in Vitro

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Effect of 5F from Pteri Sem Ipinnata L on Invasion and Metas...

Non-coding RNAs in acute ischemic stroke:from brain to periphery

2008年全国生物化学与分子生物学学术大会

作者： Jie Chen Zhi-zhen Zhang Yan-mei qin Guan-ping lin Nian-ci linag (Department of biochemistry ,Guangdong Medical College,Zhanjiang 524023,China)

To investigate the inhibitory effect and its posssible mechanisms of 5F from Pteris semipinnata L on the metastasis-associated ability of human choriocarcinoma JAR cells line in ***:MTT assay was used to determine the...

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Neural Regeneration Research 2025年第1期20卷 116-129页

作者： Shuo Li Zhaohan Xu Shiyao Zhang Huiling Sun Xiaodan qin lin Zhu Teng Jiang Junshan Zhou Fuling Yan Qiwen Deng Department of Neurology Nanjing First HospitalNanjing Medical UniversityNanjingJiangsu ProvinceChina Department of Neurology Zhongda HospitalSchool of MedicineSoutheast UniversityNanjingJiangsu ProvinceChina General Clinical Research Center Nanjing First HospitalNanjing Medical UniversityNanjingJiangsu ProvinceChina

Acute ischemic stroke is a clinical emergency and a condition with high morbidity,mortality,and *** predictive,diagnostic,and prognostic biomarkers and effective therapeutic targets for acute ischemic stroke remain *** innovations in high-throughput gene sequencing analysis,many aberrantly expressed non-coding RNAs(ncRNAs)in the brain and peripheral blood after acute ischemic stroke have been found in clinical samples and experimental *** expressed ncRNAs in the post-stroke brain were demonstrated to play vital roles in pathological processes,leading to neuroprotection or deterioration,thus ncRNAs can serve as therapeutic targets in acute ischemic ***,distinctly expressed ncRNAs in the peripheral blood can be used as biomarkers for acute ischemic stroke prediction,diagnosis,and *** particular,ncRNAs in peripheral immune cells were recently shown to be involved in the peripheral and brain immune response after acute ischemic *** this review,we consolidate the latest progress of research into the roles of ncRNAs(microRNAs,long ncRNAs,and circular RNAs)in the pathological processes of acute ischemic stroke–induced brain damage,as well as the potential of these ncRNAs to act as biomarkers for acute ischemic stroke prediction,diagnosis,and *** from this review will provide novel ideas for the clinical application of ncRNAs in acute ischemic stroke.

关键词： acute ischemic stroke apoptosis blood–brain barrier damage circular RNAs excitatory toxicity long non-coding RNAs microRNAs neuroinflammation non-coding RNAs oxidative stress

新疆枸杞种质资源遗传多样性分析及DNA指纹图谱构建

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植物遗传资源学报 2016年第6期17卷 1065-1071页

作者：查美琴赵玉玲李疆朱瑜罗淑萍胡月新疆农业大学林学与园艺学院乌鲁木齐830052 新疆精河县枸杞管理中心精河833300

利用SCoT分子标记对新疆枸杞种质资源进行遗传多样性分析和DNA指纹图谱构建,为杂交育种和种质鉴定提供理论依据。结果显示：9条SCoT引物扩增出条带256条,其中219条为多态性条带,多态性比率达85.62%,多态性信息含量（PIC）值变化范围在0.... 详细信息

利用SCoT分子标记对新疆枸杞种质资源进行遗传多样性分析和DNA指纹图谱构建,为杂交育种和种质鉴定提供理论依据。结果显示：9条SCoT引物扩增出条带256条,其中219条为多态性条带,多态性比率达85.62%,多态性信息含量（PIC）值变化范围在0.77-0.91之间,平均值为0.85,观测等位基因数（Na）、有效等位基因数（Ne）、Nei＇s基因多样性指数（H）和Shannon信息指数（I）的平均值分别为1.8562、1.4350、0.2611、0.3989,聚类分析表明,遗传相似系数变化范围在0.5938-0.8398之间,在遗传相似系数为0.66和0.71处,可将30份材料分别分为2大类和4个亚类,主坐标分析结果和聚类结果基本一致,同时利用5条多态性SCoT引物构建了30份材料的DNA指纹图谱。新疆枸杞种质资源遗传多样性水平较高,且SCoT分子标记适于新疆枸杞种质资源遗传多样性分析和DNA指纹图谱构建,该研究结果为新疆枸杞种质资源评价、鉴定和新品种选育奠定了基础。

关键词：枸杞 SCoT 种质资源遗传多样性 DNA指纹图谱

新辅助化疗治疗进展期胃癌的疗效与优越性分析

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世界复合医学 2016年第3期2卷 34-36页

作者：耿春玲秦美林张桦内蒙古包钢医院肿瘤科内蒙古包头014010

目的分析讨论新辅助化疗方案应用在进展期胃癌患者中的临床效果。方法选择2013年1月—2016年3月该院收治的82例进展期胃癌患者作为研究对象,采取随机双盲法将其分为对照组以及治疗组,每组41例,其中对照组给予单纯手术治疗,治疗组给予新... 详细信息

目的分析讨论新辅助化疗方案应用在进展期胃癌患者中的临床效果。方法选择2013年1月—2016年3月该院收治的82例进展期胃癌患者作为研究对象,采取随机双盲法将其分为对照组以及治疗组,每组41例,其中对照组给予单纯手术治疗,治疗组给予新辅助化疗方案(氟尿嘧啶、奥沙利铂联合亚叶酸钙)治疗,对2组患者的近期临床疗效进行评估。结果对照组的临床总有效率为51.22%,治疗组患者的临床总有效率为73.17%,2组患者的近期临床疗效进行对比差异有统计学意义(P<0.05);对照组的不良反应发生率为29.27%,治疗组患者的不良反应发生率为17.07%,2组患者的不良反应发生情况进行对比差异有统计学意义(P<0.05)。结论新辅助化疗方案应用在进展期胃癌患者中,可显著提升患者手术切除率,降低不良反应发生率,提高患者生活质量以及临床疗效,且延长患者生存期,在临床中值得广泛的推广与应用。

关键词：新辅助化疗手术治疗进展期胃癌

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高蛋白春大豆新品种泉豆5号的选育

大豆科学 2018年第2期37卷 326-328页

作者：李明松吕美琴林文磊康蓉蓉曾红英泉州市农业科学研究所福建泉州362212

泉豆5号是泉州市农业科学研究所以中间材料泉系253-1为母本,中间材料泉系97A27^(-2)为父本进行有性杂交育成的春大豆新品种,2013^(-2)014年参加国家热带亚热带春大豆品种区域试验平均产量2 443.5 kg·hm^(-2),比对照品种华春2号增产2.65... 详细信息

泉豆5号是泉州市农业科学研究所以中间材料泉系253-1为母本,中间材料泉系97A27^(-2)为父本进行有性杂交育成的春大豆新品种,2013^(-2)014年参加国家热带亚热带春大豆品种区域试验平均产量2 443.5 kg·hm^(-2),比对照品种华春2号增产2.65%。2015年生产试验平均产量2 335.5 kg·hm^(-2),比对照华春2号增产6.0%。2016年通过国家农作物品种审定委员会审定,适宜在海南、广东南部、广西北部和中南部、福建、江西南部春播种植。

关键词：春大豆泉豆5号选育栽培技术