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Biomedical and Environmental Sciences 2023年第12期36卷 1189-1193页

作者： ZHAO Zhi Xin qian pei yi WANG Hai Hua qian qian YANG Yong JING Li Yan YANG Lu Ting YANG Lei WANG qiang Hangzhou Hospital for the Prevention and Treatment of Occupational Disease Hangzhou 310014ZhejiangChina School of Public Health Hangzhou Normal UniversityHangzhou 311121ZhejiangChina

Interventional radiological procedures performed under the guidance of X-ray imaging tools are widely used to diagnose and treat various ***,radiation exposure can result in many health problems,including cataracts,skin necrosis,radiation burns,hair loss,birth defects,and cancer^([1-2]).Patient exposure during an interventional radiology procedure involves a wide dose range and can reach a level at which deterministic effects may occur^([3]).Although knowledge of radiation safety has greatly improved over the past century,radiation exposure in the healthcare environment remains a risk to both patients and medical ***,given the increasing number of interventions and complexity of cases,there has been growing concern about the radiation exposure of patients and surgical ***,a special evaluation of the exposure of patients and medical staff is necessary to ensure their protection.

关键词： Interventional cataract exposure

Low‑Temperature Fabrication of Stable Black‑Phase CsPbI_(3)Perovskite Flexible Photodetectors Toward Wearable Health Monitoring

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Nano-Micro Letters 2025年第3期17卷 232-245页

作者： yingjie Zhao yicheng Sun Chaoxin pei Xing yin Xinyi Li yi Hao Mengru Zhang Meng Yuan Jinglin Zhou Yu Chen Yanlin Song College of Chemistry and Pingyuan Laboratory Zhengzhou UniversityZhengzhou 450001People’s Republic of China Key Laboratory of Green Printing Institute of ChemistryChinese Academy of SciencesBeijing 100190People’s Republic of China Key Laboratory of Bio‑Inspired Materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190People’s Republic of China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049People’s Republic of China

Flexible wearable optoelectronic devices fabricated fromorganic–inorganic hybrid perovskites significantly accelerate the developmentof portable energy,biomedicine,and sensing fields,but their poor thermal stabilityhinders further ***,all-inorganic perovskites possessexcellent thermal stability,but black-phase all-inorganic perovskite filmusually requires high-temperature annealing steps,which increases energy consumptionand is not conducive to the fabrication of flexible wearable *** this work,an unprecedented low-temperature fabrication of stable blackphaseCsPbI3perovskite films is demonstrated by the in situ hydrolysis reactionof diphenylphosphinic chloride *** released diphenyl phosphateand chloride ions during the hydrolysis reaction significantly lower the phasetransition temperature and effectively passivate the defects in the perovskitefilms,yielding high-performance photodetectors with a responsivity of 42.1 AW−1 and a detectivity of 1.3×10^(14)***,high-fidelity imageand photoplethysmography sensors are demonstrated based on the fabricated flexible wearable *** work provides a newperspective for the low-temperature fabrication of large-area all-inorganic perovskite flexible optoelectronic devices.

关键词： In situ hydrolyzation Low-temperature processing All-inorganic perovskite Flexible photodetectors Health monitoring

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基于EDA技术的智能机器猫的仿真及设计

科学技术与工程 2011年第19期11卷 4491-4495页

作者：钱培怡辽宁石油化工大学信息与控制工程学院抚顺113001

EDA技术是电子设计的发展趋势,是电子信息技术发展的杰出成果。尤其是Multisim电路仿真软件和Ultiboard印制板设计软件的出现,将EDA技术提高到了一个更高的水平。系统选取了一种简易的电池驱动玩具——电动机器猫,并利用EDA开发工具Mult... 详细信息

EDA技术是电子设计的发展趋势,是电子信息技术发展的杰出成果。尤其是Multisim电路仿真软件和Ultiboard印制板设计软件的出现,将EDA技术提高到了一个更高的水平。系统选取了一种简易的电池驱动玩具——电动机器猫,并利用EDA开发工具Multisim9和Ultiboard软件进行设计仿真,将其改装成能进行一定智能控制的电动玩具。

关键词： EDA技术 Multisim9 Ultiboard 仿真

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探索实践教学模式搭建创新教学新平台

实验室科学 2014年第4期17卷 145-147页

作者：钱培怡辽宁石油化工大学信息与控制工程学院辽宁抚顺113001

随着当前新理念、新方法、新设备、新技术、新工艺的不断出现,高等工程教育中培养工程意识人才已成共识。因此在充实调整教学内容和改进教学方法的同时,应着力培养学生的职业基本技能和专业技术应用能力,提高其创新意识,搭建贴近实际工... 详细信息

随着当前新理念、新方法、新设备、新技术、新工艺的不断出现,高等工程教育中培养工程意识人才已成共识。因此在充实调整教学内容和改进教学方法的同时,应着力培养学生的职业基本技能和专业技术应用能力,提高其创新意识,搭建贴近实际工作现场环境的良好平台。简要介绍了对电工电子实践教学模式的一些探索。阐述了实践教学新模式的指导思想,实践教学新模式的建立和进行实践教学的改革,以培养具有创新能力和工程能力的、适应新世纪需求的高素质人才。

关键词：创新意识实践教学综合素质

Synthesis of chiral phosphine derivatives through a copper（I）-catalyzed desymmetric SNAr reaction

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Science China Chemistry 2025年

作者： Shuai Zhang pei-Zhi Liu Yan-Bo Li Qi Zhang Jun-Zhao Xiao yi-Fan Wang Tian-Yu Wei Jia-Wei Jiang Ye Wang qian Peng Liang yin Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences State Key Laboratory of Elemento-Organic Chemistry and Tianjin Key Laboratory of Biosensing and Molecular Recognition College of Chemistry Frontiers Science Center for New Organic Matter Nankai University Haihe Laboratory of Sustainable Chemical Transformations

Axially chiral phosphines are a class of extremely important ligands in asymmetric catalysis. Herein, an unprecedented copper（I）-catalyzed asymmetric SNAr reaction with HP（S）R2is uncovered, which delivers a series of axially chiral phosphine derivatives in high yields with excellent enantioselectivity. Furthermore, the diastereoselective reaction with the kinetic resolution of racemic HP（S）ArR proceeds smoothly, providing the products with moderate diastereoselectivity and excellent enantioselectivity. Control experiments indicate that HP（S）Ph2is much more active than HPPh2and HP（O）Ph2as the pronucleophile in the present reaction. It is found that the SNAr reaction （the first SNAr） proceeds in a desymmetric manner, providing the desired chiral products while a continued SNAr reaction （the second SNAr） slightly occurs in a kinetic resolution manner in the present catalytic system, which enhances the ee of the desired chiral products. DFTcalculations support a concerted reaction pathway rather than a step-wise mechanism. Finally, axially chiral olefin-phosphines produced by the present method work as suitable ligands in Pdcatalyzed asymmetric allylic substitution with C-, N-, and O-nucleophiles and Rh-catalyzed asymmetric addition of arylboronic acid to benzil.

关键词：

Mechanism of action of Linggui Zhugan Decoction in treating non-alcoholic fatty liver disease using untargeted metabolomics approach

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Traditional Medicine Research 2025年第2期10卷 65-76页

作者： Huan pei Ren-Lin Li Xin-Ran Song qian-qian Wan Yu-Ming Wang Han-Zhou Li Wei-Quan Xu Jia-Bao Liao Wei-Bo Wen Jing Miao Huan-Tian Cui School of Basic Medicine Yunnan University of Chinese MedicineKunming 650599China School Clinical Medical College Yunnan University of Chinese MedicineKunming 650599China First School of Clinical Medicine Yunnan University of Chinese MedicineKunming 650599China School of Integrative Chinese and Western Medicine Tianjin University of Traditional Chinese MedicineTianjin 301617China Department of Pharmacy Tianjin Second People's HospitalTianjin 300192China

Background:Non-alcoholic fatty liver disease(NAFLD)is a liver disorder characterized by the accumulation and degeneration of fat in the liver cells,a condition that may further deteriorate and lead to cirrhosis and liver *** studies showed that metabolic dysfunction can promote NAFLD *** Zhugan Decoction(LGZGD)has therapeutic effects on *** mechanism of LGZGD still remains *** study was to examine the impact of LGZGD on the metabolic processes involved in the development of ***:A mice model of NAFLD was treated with *** therapeutic potential of LGZGD was evaluated by assessing the activity of transaminases,lipids levels of blood,and pathological changes in the liver of the mice model of ***,this study also evaluated the influence of LGZGD on liver inflammation and oxidative ***:The results of untargeted metabolomics analysis showed that LGZGD reduced the disordered lipid metabolism in NAFLD *** improved the oxidative stress and also reduced the levels of pro-inflammatory cytokines in the *** metabolomics analysis of liver samples revealed that LGZGD treatment improved metabolic disorders,including alanine,aspartate,glutamate,glycerophospholipid metabolism,and citrate *** RT-qPCR and Western blot results showed that LGZGD could regulate the expression of key enzymes in the metabolic pathway of the citrate cycle,including ATP-citrate lyase(ACLY),alanine-glyoxylate aminotransferase-2(AGXT2),phosphatidylethanolamine N-methyltransferase(PEMT),and succinate dehydrogenase(SDH).Conclusion:We found that LGZGD can treat NAFLD by reducing inflammatory responses,inhibiting oxidative stress,regulating alanine,aspartate,glutamate,and glycerophospholipid metabolism,and citrate cycle pathways.

关键词： NAFLD LGZGD untargeted metabolomics glycerophospholipid metabolism citrate cycle

Subcutaneous pedicled propeller flap technique for microscopic reconstruction of eyelid defects

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International Journal of Ophthalmology(English edition) 2023年第7期16卷 1047-1052页

作者： Lei Zhong qian-yi Lu pei-Rong Lu The First Affiliated Hospital of Soochow University Suzhou 215006Jiangsu ProvinceChina

AIM:To describe the subcutaneous pedicled propeller flap technique for the microscopic reconstruction of eyelid defects and evaluate its ***:The clinical data of 23 patients(23 eyes)who underwent microscopic reconstruction of eyelid defects with the subcutaneous pedicled propeller flap technique were retrospectively *** patients underwent eyelid tumor resection and one-stage microscopic reconstruction with the subcutaneous pedicled propeller flap for anterioror posterior-layer eyelid *** survival rate of the propeller flap,eyelid function and appearance,tumor recurrence rate,and patient satisfaction were evaluated after the ***:The patients consisted of 12 men and 11 women,aged 31–82y(mean,58.9y).The longest followup time was 5y,and the shortest was *** the propeller flaps survived *** was no significant difference in color and luster between the flap and adjacent tissues,and there was no dog ear *** obvious scarring was *** were no obvious abnormalities of eyelid morphology or function,and no adverse complications such as exposure keratitis,entropion,ectropion,ptosis,and eyelid *** tumor recurrence was found at the time of the last *** patients were satisfied with the surgical ***:The subcutaneous pedicled propeller flap technique for the microscopic reconstruction of eyelid defects has satisfactor y outcomes in terms of eyelid function and esthetics,and merits clinical application.

关键词： propeller flap eyelid defect microscopic reconstruction

DC Characteristics of Gamma-ray Irradiated SiGe HBT in Comparison with Si BJT

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Chinese Journal of Aeronautics 2006年第B12期19卷 192-197页

作者： MENG Xiang-ti HUANG qian WANG Ji lin CHEN pei-yi TSIEN pei-hsin Institute of Nuclear and New Energy Technology Tsinghua University Beijing 100084 China Institute of Microelectronics Tsinghua University Beijing 100084 China

The changes of DC characteristics of SiGe HBT after being submitted to γ-ray irradiation of 700 krad, 7 000 krad and 10 000 krad were compared to those of Si BJT. Generally speaking, Ib and Ib- Ib0 increase with the doses increasing. For SiGe HBT, with the doses increasing, Ic and Ic-Ic0 as well as the related changes of the current gain （β） will decrease at higher Vbe, while for Si BJT, with the doses increasing, after irradiation, Ib and Ic-Ic0 increase; ,8 and its related changes also decrease with their differences, however, tending to be very small at high doses of 7 000 krad and 10 000 krad. Moreover, given the same doses, the decreases of,a are much larger than SiGe HBT, which shows that SiGe HBT＇s anti-radiation performance proves to be better than Si BJT. Still, in SiGe HBT, some strange phenomena were observed： Ic-Ic0 will increase after the radiation of 7 000 krad in less than 0.65 V and as will ,8 in less than 0.75 V. The mechanism of radiation-induced change in DC characteristies was also discussed.

关键词： γ-ray irradiation SiGe HBT Si BJT DC characteristics

Optimization of iron and aluminum recovery in bauxite

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Journal of Iron and Steel Research International 2020年第3期27卷 310-318页

作者： qian Long Jun-qi Li Chao-yi Chen Yuan-pei Lan Guo-ling Wei Department of Metallurgical Engineering College of Materials and MetallurgyGuizhou UniversityGuiyang 550025GuizhouChina Guizhou Province Key Laboratory of Metallurgical Engineering and Process Energy Saving Guiyang 550025GuizhouChina

Recovering iron and aluminum efficiently is the key route to utilize low-grade high-iron *** to optimize the iron separating process and elevate both Fe and Al recovery ratio,three different Fe-Al recovery processes with different magnetic roasting(R),Bayer leaching process(L)and magnetic separation(S)orders were *** studied processes include bauxite leaching→red mud roasting→magnetic separation(L-R-S),bauxite roasting→magnetic separation→leaching(R-S-L)and bauxite roasting→leaching→magnetic separation(R-L-S).The iron recovery ratio,Fe2O3 content in iron concentration and the bauxite dissolution ratio of each process were ***,the optimizations of the leaching,roasting and magnetic separation conditions were *** indicate that the R-S-L process should be an advisable order to recover both alumina and *** the three processes,the R-S-L route had the highest alumina dissolution ratio and iron recovery ratio,which was 86.20%and 69.58%,respectively,while the Fe2O3 content of the iron concentrate was 40.66%.

关键词： High-iron bauxite Magnetic roasting Magnetic separation Recovery ratio Dissolution ratio

Tribological behaviour of oil-soluble organo-molybdenum compound as lubricating additives

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中国有色金属学会会刊:英文版 2004年第Z1期14卷 386-390页

作者： SHI pei-jing XU Bin-shi XU yi QIAO Yu-lin LIU qian National Key Laboratory for Remanufacturing Academy of Armored Force Engineering Beijing 100072 China

A four-ball machine was employed to investigate the tribological performances and the synergetic function of organo-molybdenum compounds (molybdenum dialkyl-dithiophosphate and molybdenum dithiophosphate, coded as MoDDP and MoDTP, respectively) as additives in liquid paraffin. The morphologies of the worn surfaces and elemental distributions were observed and determined by means of scanning electron microscopy and energy dispersive spectrometry. The chemical states of some typical elements on the worn surface were analyzed on X-ray photoelectron spectroscope. The results show that MoDDP and MoDTP additives in liquid paraffin have excellent antiwear and friction-reduction properties, which are attributed to the reaction film composed of MoS2, FeS and MoO2, and the deposited film composed of phosphate on the worn surface. Moreover, these two additives have synergetic friction-reducing and antiwear effect, which is closely related to the chemical states of S on the worn surface.

关键词： oil-soluble organo-molybdenum additive friction-reduction and antiwear behaviour tribochemistry