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Oxidative Desulfurization of Fuel Oil with H_(3)PO_(4)-based Deep Eutectic Solvents

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China Petroleum Processing & Petrochemical Technology 2024年第2期26卷 178-186页

作者： Li xiuping Zhang Jiayin Hou Liangpei zhao Rongxiang School of Petrochemical Engineering Liaoning Petrochemical UniversityFushun 113001China

A series of Lewis-acid deep eutectic solvents (DESs) were synthesized by stirring phosphoric acid and zincchloride as raw materials at 80 °C to form H_(3)PO_(4)/nZnCl_(2) (n = 0.1, 0.25, 0.5, 0.75, 1). The DESs were characterized byFourier transform infrared spectrophotometry (FT-IR), thermogravimetry/differential thermogravimetry (TG/DTG), andelectron spray ionization mass spectrometry (ESI-MS). The DESs were used as both extractants and catalysts to removedibenzothiophene from fuels via oxidative desulfurization (ODS). Experiments were performed to investigated the influenceof factors such as composition of DES, temperature, oxidant dosage (molar ratio of O:S), DES dosage (volume ratio ofDES:oil), and number of cycles on desulfurization rate. The results indicated that the removal rate of dibenzothiophene (DBT)was affected by the Lewis acidic DESs, with that of H_(3)PO_(4)/0.25∙ZnCl_(2) reaching 96.4% under optimal conditions (Voil=5 mL,VDES=1 mL, an oxidant dosage of 6, T=50 ℃). After six cycles, the desulfurization rate of H_(3)PO_(4)/0.25∙ZnCl_(2) remained above94.1%. The apparent activation energy of dibenzothiophene (DBT) removal reaction was determined by a pseudo-first orderkinetic equation according to the Arrhenius equation to be 32.34 kJ/mol, as estimated. A reaction mechanism is proposedbased on the experimental data and characterization results.

关键词： deep eutectic solvents phosphoric acid zinc chloride oxidative desulfurization

Current status of cognition and skin care behavior in adolescent patients with acne:A survey in China

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Chinese Medical Journal 2024年第4期137卷 476-477页

作者： Jing Tian Hong Shu Qiufang Qian Zhong Shen Chunyu zhao Li Song Ping Li xiuping Han Hua Qian Jinping Chen Hua Wang Lin Ma Yuan Liang Department of Dermatology Beijing Children’s HospitalCapital Medical UniversityNational Center for Children’s HealthBeijing 100045China Department of Dermatology Kunming Children’s HospitalKunmingYunnan 650034China Department of Dermatology Children’s Hospital of ShanghaiChildren’s Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200127China Loreal China Co. LtdShanghai 200040China Department of Dermatology Henan Children’s HospitalChildren’s Hospital Affiliated to Zhengzhou UniversityZhengzhou Hospital Beijing Children’s HospitalZhengzhou Children’s HospitalZhengzhouHenan 450052China Department of Dermatology Shenzhen Children’s HospitalShenzhenGuangdong 518026China Department of Dermatology Shengjing Hospital of China Medical UniversityShenyangLiaoning 110004China Department of Dermatology Children’s Hospital of Soochow UniversitySuzhouJiangsu 215025China Department of Dermatology Guangzhou Women and Children's Medical CenterGuangzhouGuangdong 510623China Department of Dermatology Children’s Hospital of Chongqing Medical UniversityChongqing 400014China

To the Editor:Acne vulgaris(AV)is a common inflammatory skin condition.Population-based epidemiological studies have reported associations between dietary habits,lifestyle factors,family history,and the occurrence and development of acne.^([1–4])This study investigated the skincare behavior and cognition of patients with AV regarding predisposing factors using a designed electronic questionnaire.

关键词： patients dietary behavior

氯氧化锆基三元低共熔溶剂的制备和氧化脱硫性能

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燃料化学学报（中英文） 2024年第5期52卷 647-655页

作者：王添渤李秀萍赵荣祥辽宁石油化工大学石油化工学院辽宁抚顺113001

通过简单加热乙二醇,对甲苯磺酸和八水氯氧化锆混合物制备了三元低共熔溶剂。采用傅里叶变换红外光谱(FT-IR)和核磁共振氢谱(^(1)H NMR)验证了低共熔溶剂成功合成。分别采用紫外-可见吸收光谱和旋转式黏度计对其酸性和黏度进行测试。以... 详细信息

通过简单加热乙二醇,对甲苯磺酸和八水氯氧化锆混合物制备了三元低共熔溶剂。采用傅里叶变换红外光谱(FT-IR)和核磁共振氢谱(^(1)H NMR)验证了低共熔溶剂成功合成。分别采用紫外-可见吸收光谱和旋转式黏度计对其酸性和黏度进行测试。以双氧水作为氧化剂,以合成的低共熔溶剂为萃取剂和催化剂构成萃取-氧化脱硫系统,考察了低共熔溶剂的组成、反应温度、氧硫比、剂油比以及不同硫化物等对脱硫率的影响。实验结果表明,在氯氧化锆、乙二醇和对苯甲磺酸物质的量比为1∶10∶10,反应温度50℃、剂油比为1∶5、氧硫比为8的最佳反应条件下,二苯并噻吩(DBT)、4,6-二甲基二苯并噻吩(4,6-DMDBT)、苯并噻吩(BT)模拟油的脱硫率分别为100%、92.2%、60%,且低共熔溶剂重复使用五次后脱硫率仍可达到96.2%,最后对氧化脱硫的机理进行了探讨。

关键词：低共熔溶剂氧化脱硫二苯并噻吩氯氧化锆

Effects of Cigu Xiaozhi Formula on miR-378a-3p Expression and Hh Signaling Pathway in TGF-β1 Induced LX2 Cells

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Medicinal Plant 2023年第5期14卷 52-56,71页

作者： Aidi WANG Yanhua MA Li WANG xiuping zhao The First Clinical Medical College Gansu University of Chinese MedicineLanzhou 730000China

[Objectives]To observe the effects of Cigu Xiaozhi Formula on miR-378a-3p expression and Hh signaling pathway in TGF-β1 induced and activated LX2 cells.[Methods]Cells were divided into control group,induction group,drug-containing serum group,miR-378a-3p inhibitor group,and miR inhibitor NC group.CCK-8 method was used to detect the cell viability of each group,and flow cytometry was used to detect the apoptosis rate of each group.RT-qPCR was used to detect the expression of miR-378a-3p in each group s cells,and RT-qPCR and Western blot were used to detect mRNA and protein expression of Shh,Gli1,Gli2,Col-I,andα-SMA in each group s cells.[Results]Compared with the control group,the cell viability and expression of Shh,Gli1,Gli2,Col-I,andα-SMA mRNA and protein in induction group increased(P<0.01),while the expression of miR-378a-3p decreased(P<0.01).Compared with the induction group,the cell viability and expression of Shh,Gli1,Gli2,Col-I,α-SMA mRNA andα-SMA and Gli2 protein decreased in drug-containing serum group(P<0.05),while cell apoptosis rate and miR-378a-3p expression increased(P<0.01).In miR-378a-3p inhibitor group,cell viability and the expression of Shh,Gli1,Gli2,Col-I,α-SMA mRNA and Gli1,Gli2,α-SMA protein increased(P<0.05,P<0.01),while the apoptosis rate and miR-378a-3p expression decreased(P<0.05,P<0.01).[Conclusions]Cigu Xiaozhi Formula containing serum can upregulate miR-378a-3p expression and downregulate the expression of Gli2 andα-SMA in TGF-β1 induced LX2 cells,thereby inhibiting the activation of LX2 cells and exerting the effects of anti liver fibrosis.

关键词： Cigu Xiaozhi Formula LX2 cells TGF-β1 miR-378a-3p Hh signaling pathway

硬模板法制备大比表面积钼酸钴及其有氧氧化脱硫性能

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石油炼制与化工 2024年第7期55卷 81-90页

作者：韩帅李秀萍赵荣祥辽宁石油化工大学石油化工学院辽宁抚顺113001

以氯化钴和钼酸铵为原料、KIT-6为硬模板,结合碱蚀过程制备了大比表面积的钼酸钴催化剂。通过X射线衍射、扫描电子显微镜、X射线光电子能谱和N_(2)吸附-脱附技术确定了催化剂的形貌和结构特征。以介孔钼酸钴为催化剂、O_(2)为氧化剂,氧... 详细信息

以氯化钴和钼酸铵为原料、KIT-6为硬模板,结合碱蚀过程制备了大比表面积的钼酸钴催化剂。通过X射线衍射、扫描电子显微镜、X射线光电子能谱和N_(2)吸附-脱附技术确定了催化剂的形貌和结构特征。以介孔钼酸钴为催化剂、O_(2)为氧化剂,氧化脱除模拟油中的二苯并噻吩。考察反应温度、O_(2)流量、催化剂加入量以及硫化物种类对脱硫率的影响。试验结果表明,最佳的反应条件如下:模拟油量为20 mL,催化剂加入量为0.05 g,O_(2)通入流量为200 mL/min,反应温度为110℃,反应时间为60 min。在此条件下脱硫率可以达到96.2%,催化剂重复使用5次后活性没有明显降低。机理研究结果表明,在催化剂作用下形成的超氧自由基是催化剂具有较高脱硫活性的关键。

关键词：钼酸钴氧化脱硫比表面积超氧自由基

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视频侦查技术关键及其发展展望

辽宁警察学院学报 2024年第2期26卷 79-87页

作者：赵秀萍山东警察学院刑事科学技术系山东济南250200

视频侦查技术的核心是通过视频图像的提取、查看、分析和研判来获取侦查线索、固定涉案证据。多年来经过在实战应用中不断地发展创新,视频侦查技术形成了自己独特的关键技术体系:视频信息分析解读技术是侦查应用和证据固定的基础和核心... 详细信息

视频侦查技术的核心是通过视频图像的提取、查看、分析和研判来获取侦查线索、固定涉案证据。多年来经过在实战应用中不断地发展创新,视频侦查技术形成了自己独特的关键技术体系:视频信息分析解读技术是侦查应用和证据固定的基础和核心;视频证据固定保全技术的规范是审判中心主义的客观要求,可以获取视频侦查记录报告、视频检验鉴定报告或视频数据关联报告;低质量视频图像的增强恢复技术专业性强,应用范围窄,技术成熟度高,然而它不断面临新的挑战。目前,视频数据的智能应用在大数据背景下变得越来越重要,仍需进一步突破视频自动识别技术的应用范畴,建立完善多层次的视频数据综合应用体系,打造适应不同业务需要的视频数据实战应用模型。

关键词：视频侦查技术视频解析证据固定图像处理数据智能

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富氧燃烧条件对加热炉传热特性影响

钢铁 2024年第2期59卷 173-184页

作者：陈德敏李宁刘骁赵义博郦秀萍陈光安徽工业大学建筑工程学院安徽马鞍山243000 钢铁研究总院有限公司北京100081 中国钢研科技集团有限公司钢铁绿色智能化中心北京100081 安徽工业大学能源与环境学院安徽马鞍山243000

富氧燃烧具有提高理论燃烧温度、降低过剩空气系数和增强烟气辐射能力等优点,成为工业炉窑领域研究的热点,但目前轧钢加热炉内富氧燃烧位置及氧气体积分数变化对炉内流动和传热过程影响规律尚不明确。建立了加热炉炉内流动、富氧燃烧和... 详细信息

富氧燃烧具有提高理论燃烧温度、降低过剩空气系数和增强烟气辐射能力等优点,成为工业炉窑领域研究的热点,但目前轧钢加热炉内富氧燃烧位置及氧气体积分数变化对炉内流动和传热过程影响规律尚不明确。建立了加热炉炉内流动、富氧燃烧和传热数学模型,并在案例加热炉进行了应用,利用测试数据验证了模型的准确性后,分析了富氧燃烧分别位于预加热段、加热一段和加热二段时,炉内温度场、速度场和钢坯传热过程的变化规律,得到了富氧燃烧的最佳位置。其次,分析了固定富氧燃烧位置,氧气体积分数从21%变化到49%时,加热炉烟气热损失、炉膛热效率和节能率的变化规律,得出此种条件下氧气体积分数最佳范围。结果表明氧气体积分数固定时,预加热段、加热一段和加热二段分别实施富氧燃烧,热流密度变化最明显的炉内位置分别出现在17~25、17~34和29~44 m,这些位置平均热流密度增加值分别为4.95、7.42和7.95 kW/m^(2)。富氧燃烧位置分别位于预加热段、加热一段和加热二段,氧气体积分数为21%~37%时,氧气体积分数每增加1%,烟气损失分别下降0.25%、0.55%和0.72%,炉膛热效率分别提高0.13%、0.3%和0.39%,节能率分别提高0.2%、0.99%和1.09%,而氧气体积分数为37%~49%时,即使在加热二段实施富氧燃烧,烟气损失、炉膛热效率和节能率变化也并不明显。通过上述分析可以看出,轧钢加热炉中,热负荷较大的加热段实施富氧燃烧,且氧气体积分数为21%~37%时节能效果最明显。

关键词：加热炉富氧燃烧氧气体积分数炉膛热效率节能率

Review of reader antennas for UHF RFID systems

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The Journal of China Universities of Posts and Telecommunications 2023年第5期30卷 72-92页

作者： Niu Yaohui Li xiuping zhao Wenyu State Key Laboratory of Information Photonics and Optical Communications Beijing 100876China Key Laboratory of Universal Wireless Communications of Ministry of Education Beijing 100876China Beijing Key Laboratory of Work Safety Intelligent Monitoring Beijing 100876China School of Electronic Engineering Beijing University of Posts and TelecommunicationsBeijing 100876China

Radio-frequency identification(RFID)antennas are critical components in wireless communication networks for the Internet of things(IoT).The RFID systems make it possible to realize the dynamic interconnection of various things.To better summarize the operating principles of the RFID antennas and associate antennas with specific complex applications,a review of RFID systems and antennas is necessary.In this paper,a review of reader antennas for ultra-high frequency(UHF)RFID systems is presented,and the categories of RFID systems are summarized for the first time.The antennas are classified according to the reading region and operating principle.The reading region determines the most crucial performance that should be concentrated on when designing an antenna,while the operating principle affects the current distribution on the surface of the antenna,and further the electromagnetic radiation.By the summary of the RFID systems and antennas,the understanding of future researchers on the operating principles of the RFID antennas could be facilitated,which can be helpful in the advanced design and implementation of RFID antennas.In addition,taking engineering requirements into account,the future prospective of RFID applications is discussed,as well as the challenges to be addressed.

关键词： radio frequency identification(RFID) near-field antenna ultra-high frequency(UHF) RFID system

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鲟鱼重组鱼排3D打印特性的研究

食品与发酵工业 2024年第3期50卷 241-249页

作者：金铮于婉莹赵文宇刘宇轩祁立波白帆董秀萍大连工业大学食品学院食品交叉科学研究院辽宁大连116034 国家海洋食品工程技术研究中心海洋食品精深加工关键技术省部共建协同创新中心辽宁省海产品精深加工产业共性技术创新平台辽宁大连116034 衢州鲟龙水产食品科技开发有限公司浙江衢州324004

该研究以鲟鱼肉为原料,复配鸭肉和山药并借助3D打印技术制备重组鱼排。通过分析复配物料的流变特性及3D打印效果,考察熟化后鱼排的质构特性、色泽、水分特性、微观结构,结合感官评定结果,探究山药和鸭肉复配比对重组鱼排品质的影响。研... 详细信息

该研究以鲟鱼肉为原料,复配鸭肉和山药并借助3D打印技术制备重组鱼排。通过分析复配物料的流变特性及3D打印效果,考察熟化后鱼排的质构特性、色泽、水分特性、微观结构,结合感官评定结果,探究山药和鸭肉复配比对重组鱼排品质的影响。研究结果表明,当山药和鸭肉总添加量为26.25%时,随山药占比增加,复配物料表观黏度降低,流动性增大。核磁共振结果显示,山药的添加会提高水分迁移率,使得重组鱼排微观网络结构逐渐粗糙不均匀。当山药与鸭肉复配比例为3∶7~4∶6时,重组鱼排的剪切力为456.86~504.19 g,硬度为300.72~391.79 g,此时3D打印鱼排结构紧密,具有良好稳定性且感官接受度高。综上,当山药与鸭肉复配比例在3∶7~4∶6时,对重组鱼排进行加工,鱼排质构特性较为适宜,成型性良好,具有优良的品质。

关键词：鲟鱼鸭肉山药重组鱼排 3D打印