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β-receptor blocker influences return of spontaneous circulation and chemical examination in rats during cardiopulmonary resuscitation

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2013年第6期14卷 505-510页

作者： xiao-jing ZHAO Zhuo PEN Ping LI Er-xiu CHEN Jian LIU Yan-xia GAO yun-xia ren Li-jun LI Department of Emergency Medicine the Second Affiliated Hospital of Medical CollegeXi'an Jiaotong University Mechanical Energy and Experimental Center of Medical CollegeXi'an Jiaotong University

Objective:We investigated the influence of β-receptor blocker metoprolol on return of spontaneous circulation(ROSC) during cardiopulmonary resuscitation(CPR) in rats with induced myocardial infarction(MI).Methods:Male Sprague-Dawley rats were randomly divided into three groups:the sham-operated group,the MI group without metoprolol,which was fed the vehicle,and the MI+metoprolol group receiving intragastric *** group was further divided randomly into three subgroups,depending on the dosage of epinephrine administered during subsequent CPR applied after the induction of asphyxial cardiac ***:The ROSC rate was significantly decreased in the low dose subgroup of MI group,unchanged in the medium dose subgroup of MI group,and significantly decreased in the high dose subgroup of MI group,compared with the same dose subgroup of sham-operated ***+metoprolol group had a lower ROSC rate than MI group in the medium dose subgroup,and a higher ROSC rate than MI group in the high dose *** was no difference in blood K+ values of successful rats between MI group and MI+metoprolol *** rats with successful CPR had lower blood K+ values than rats with unsuccessful CPR in each of the three treatment ***:Metoprolol administered to MI rats over a long period significantly improved ROSC rates under an appropriate dose of epinephrine during *** increasing high blood K+ value would attenuate the rate of a successful CPR.

关键词： β-receptor blocker Cardiopulmonary resuscitation Return of spontaneous circulation Epinephrine Chemical examination

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一种地基相控阵天线指向系统性误差分析

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微波学报 2018年第4期34卷 16-21,47页

作者：张赟霞任波中国电子科技集团公司第十四研究所南京210039 天线与微波技术重点实验室南京210039

相控阵天线的指向精度决定着雷达系统对目标的探测精度,甚至会影响跟踪、截获目标的成败。以一种地基相控阵天线为例,详细分析了机电混合扫描天线的指向系统性误差来源：1）热形变导致的单元间距误差,2）空气折射,3）伺服机械转动误差,... 详细信息

相控阵天线的指向精度决定着雷达系统对目标的探测精度,甚至会影响跟踪、截获目标的成败。以一种地基相控阵天线为例,详细分析了机电混合扫描天线的指向系统性误差来源：1）热形变导致的单元间距误差,2）空气折射,3）伺服机械转动误差,4）天线内部温度场变化等。从理论上分析了上述因素对天线指向精度的影响,并提出了完整的远场误差校准方法和误差修正流程。试验结果表明,误差来源分析准确,所提出的校准方法可以明显改善天线指向精度,从而提高雷达系统跟踪精度和威力,对于地基乃至移动平台相控阵天线的设计与应用具有重要的参考价值。

关键词：相控阵天线指向精度系统性误差空气折射温度场

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CaH2-promoted activity of Ni-carbonate interface for CO2 methanation

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Journal of Energy Chemistry 2025年第1期100卷 522-532页

作者： Jin-Peng Wang Guo-Cui Mao Hui-Lin Jiang Bao-xia Dong yun-Lei Teng School of Chemistry and Chemical Engineering Yangzhou University

Transition metal-carbonate interfaces often act as active sites in heterogeneous catalytic *** interface between transition metal and metal carbonate exhibits a dynamic equilibrium during the CO2hydrogenation reaction,involving surface carbonate hydrogenation and ***,there have been few reports on engineering the activity of the interface between transition metal and alkaline earth metal carbonate for catalytic *** work demonstrated that the incorporation of CaH2in Ni/CaCO3enhances the CO2methanation activity of the *** CO2conversion for Ni/CaH2-CaCO3reached 68.5%at 400°C,which was much higher than that of the Ni/CaCO3（31.6%） and Ni/CaH2-CaO （42.4%） ***,the Ni/CaH2-CaCO3catalysts remained stable during the stability test for 24 h at 400°C and 8 *** research revealed that CaH2played a crucial role in promoting the activity of the Ni-carbonate interface for ***2could modify the electronic structure of Ni and tune the structural properties of CaCO3to generate medium basic sites （OH groups）,which are favorable for the activation of H2and ***-situ Fourier transform infrared spectroscopy （FTIR） analysis combined with density functional theory calculations demonstrated that CO2activation occurs at the hydroxyl group （OH） on the CaH2-modified Ni-carbonate surface,leading to the formation of CO3H****,our study has confirmed that CO2methanation over the Ni/CaH2-CaCO3catalysts proceeds via the formate pathway.

关键词： Metal hydride Ni catalysts Carbonate Metal-carbonate interface

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Ni-W-P合金镀层在流动介质中的腐蚀防护效果研究

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电镀与环保 2017年第2期37卷 46-49页

作者：马腾达张云霞梁平任建民钱守龙辽宁石油化工大学机械工程学院辽宁抚顺113001 辽宁石油化工大学继续教育学院辽宁抚顺113001

在管束表面化学镀Ni-W-P合金镀层,并对镀层的表面形貌、成分、结构及耐蚀性进行了测试。结果表明:Ni-W-P合金镀层表面覆盖均匀的胞状物,含有W元素,容易在介质中发生钝化;Ni-W-P合金镀层的耐蚀性良好,其在流动介质中的耐蚀性弱于在静态... 详细信息

在管束表面化学镀Ni-W-P合金镀层,并对镀层的表面形貌、成分、结构及耐蚀性进行了测试。结果表明:Ni-W-P合金镀层表面覆盖均匀的胞状物,含有W元素,容易在介质中发生钝化;Ni-W-P合金镀层的耐蚀性良好,其在流动介质中的耐蚀性弱于在静态介质中的耐蚀性。

关键词：化学镀 Ni-W-P合金镀层耐蚀性换热器

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Cx26在甲状腺乳头状癌中的异常表达及其临床意义

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中国医学创新 2017年第16期14卷 122-124页

作者：万锋吕云霞徐志韧余济春武警江西省总队医院江西南昌330009 南昌大学第二附属医院

目的:探讨Cx26在甲状腺乳头状癌(PTC)中的异常表达与病理分期、淋巴结转移等临床病理学参数的关系。方法:采用免疫组织化学方法对116例PTC组织、33例癌旁组织的新鲜标本进行石蜡包埋,切片染色,检测Cx26的表达,并分析其在PTC中的表达与... 详细信息

目的:探讨Cx26在甲状腺乳头状癌(PTC)中的异常表达与病理分期、淋巴结转移等临床病理学参数的关系。方法:采用免疫组织化学方法对116例PTC组织、33例癌旁组织的新鲜标本进行石蜡包埋,切片染色,检测Cx26的表达,并分析其在PTC中的表达与临床病理学参数的关系。结果:Cx26在PTC组织中的表达均显著高于癌旁组织(P<0.05),其表达与肿瘤大小、临床分期、病理分级、淋巴结转移等因素相关(P<0.05)。结论:Cx26的表达可有效地预测PTC的发生、早期转移以及预后。

关键词： Cx26 甲状腺乳头状癌转移

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不同药物对正畸龈炎临床治疗效果的观察

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全科口腔医学电子杂志 2016年第1期3卷 29-32页

作者：黄荣花冯云霞范红任娟孟国华山西医科大学口腔医学系山西太原030001 山西省人民医院口腔正畸科山西太原030012 山西省太原市万柏林区中心医院口腔科山西太原030024

目的评价西吡氯胺口含片、丁硼乳膏、复方氯己定含漱液三种药物对正畸牙龈炎患者龈沟液中MMP-3及IL-1β水平的影响。方法选取80例正在进行固定矫治且伴有牙龈炎的患者,随机分为四组,分别应用西吡氯胺口含片,丁硼乳膏,复方氯己定含漱液干... 详细信息

目的评价西吡氯胺口含片、丁硼乳膏、复方氯己定含漱液三种药物对正畸牙龈炎患者龈沟液中MMP-3及IL-1β水平的影响。方法选取80例正在进行固定矫治且伴有牙龈炎的患者,随机分为四组,分别应用西吡氯胺口含片,丁硼乳膏,复方氯己定含漱液干预,对照组仅进行全口超声洁治术后普通日常维护,于不同时段采集患者龈沟液,ELISA法对其中MMP-3及IL-1β用药前后指标的变化进行检测。结果四组患者MMP-3浓度治疗前比较差异无统计学意义(P>0.05),治疗后浓度比较差异有统计学意义(P0.05),治疗后浓度比较差异有统计学意义(P<0.05),实验组明显降低。结论三种不同药物对正畸性龈炎均有治疗效果。其中西吡氯胺口含片的抑菌效果优于其它两种传统药物,丁硼乳膏优于复方氯己定含漱液,复方氯己定含漱液抑菌效果相对较差。

关键词：正畸龈炎西吡氯胺口含片金属基质蛋白酶-3 白介素-1β

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Synthesis and mechanism analysis of a new oil soluble viscosity reducer for flow improvement of Chenping heavy oil

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Chinese Journal of Chemical Engineering 2022年第5期35卷 58-67页

作者： Yaqi ren Shuqian xia School of Chemical Engineering and Technology Tianjin UniversityTianjin 300072China

Oil soluble viscosity reducers have gradually attracted the attention of petrochemical research due to their cleanliness and high *** the high viscosity and non-Newtonian fluid properties of Chenping heavy oil found in China,a series of new oil soluble viscosity reducers with different proportions and molecular weights were prepared by free radical polymerization using octadecyl acrylate,2-allylphenol and N-methylolacrylamide as *** viscosity reducer was applied to different types of heavy oil and found that it exhibited a better effect on heavy oils with high asphaltene *** test of rheological behavior of heavy oil with additive was performed at wide range of shear rate(3–90 s^(-1))and temperature range(30–100°C).The apparent viscosity reduction rate was up to 70.09%,which was better than the industrially relevant ethylene–vinyl acetate copolymer under the same test *** addition,the effect of viscosity reducers on the components of heavy oil and the energy change of the system simulated by molecular dynamics simultaneously was *** consistency of the simulated and experimental results show that the effect of viscosity reduction closely related to the crystallization process of wax and the viscosity reducer can reconstruct the surface structure of asphaltene and diminish the connection of benzene ring.

关键词： Heavy oil Viscosity reduction Asphaltene Non-Newtonian fluid

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Influencing factors of self-management ability among dry eye patients in west China

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International Journal of Ophthalmology(English edition) 2024年第9期17卷 1621-1627页

作者： Jie ren Xin Zhang Ji-Hong Zeng yun-xia Gao Department of Ophthalmology West China HospitalSichuan University/West China School of NursingSichuan UniversityChengdu 610041Sichuan ProvinceChina

AIM:To investigate the current situation and influencing factors of self-management ability in dry eye patients in west ***:A total of 265 patients clinically diagnosed with dry eye received a convenience survey questionnaire at West China Hospital of Sichuan *** participants completed the rating scale of health self-management skill for adults(AHSMSRS),Huaxi Emotional-Distress Index(HEI),e-health literacy scale(e-HEALS)and Brief Illness Perception Questionnaire(Brief-IPQ).A generalized linear model was employed to establish a multivariate linear model with demographic data,psychological state,e-HEALS,and illness perception as independent variables and health selfmanagement skill score as the dependent ***:The mean score for health self-management skill was 165.58±*** analysis revealed that advanced age,better illness perception and improved psychological state were associated with better health selfmanagement ability among dry eye ***,the health self-management ability of patients with a disease duration less than 1y was found to be higher compared to those with a disease duration exceeding ***:The health self-management ability of dry eye patients in west China is relatively ***,duration of disease,illness perception and psychological state are the influencing factors on the health selfmanagement ability of dry eye patients.

关键词： dry eye self-management ability influencing factors

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Investigation of L/D-threonine substituted L-serine octamer ions by mass spectrometry and infrared photodissociation spectroscopy

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Chinese Chemical Letters 2017年第3期28卷 537-540页

作者： Juan ren Yi-yun Wang Ru-xia Fenga xiang-Lei Kong The State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 China Collaborative Innovation Center of Chemical Science and Engineering Nankai University Tianjin 300071 China

Threonine-substituted serine octamer ions were generated by electrospray ionization（ESI） and investigated by mass spectrometry and infrared photodissociation（IRPD） spectroscopy. IRPD spectra of[L-Ser_7＋ L/D-Thr_1]H~＋and [L-Ser_6＋ L/D-Thr_2]H~＋were obtained in the range of 2700–3600 cm^（-1）. Chiral differentiation was achieved by comparing their IRPD spectra. The main difference located in the range of 3300–3500 cm^（-1）. And the results indicate the substitution of L-Ser by D-Thr could weaken the intermolecular H-bonds and loosen the original structures of serine octamers.

关键词： IRPD spectroscopy Threonine Serine octamer Chiral differentiation Mass spectrometry

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Case Report:Liquid-based cytology aids in primary fallopian tube cancer diagnosis

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2009年第8期10卷 635-638页

作者： Zhuo ren yun-ping ZHANG Hui-xia YANG Li-rong ZHU Department of Obstetrics and Gynecology Haidian District Maternal and Child Healtheare Hospital Beijing 100080 China Department of Obstetrics and Gynecology Peking University First Hospital Beijing 100034 China

Primary fallopian tube carcinoma(PFTC) is a rare malignant carcinoma among all genital tract *** occurs most commonly in postmenopausal women and is similar to ovarian malignancy historically and *** of its insidious onset and silent course,the diagnosis is made usually ***-based cytology(LBC) is a type of method for cervical cancer screening,but sometimes it may aid in making PFTC *** report a 47-year-old woman with PFTC,whose diagnosis was made with the aid of LBC.

关键词： Primary fallopian tube carcinoma (PFTC) Liquid-based cytology (LBC) Diagnosis

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