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PTC/NTC Behavior of PVDF Composites Filled with GF and CF

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Chemical Research in Chinese Universities 2008年第5期24卷 648-652页

作者： WANG xin-lei zhang Guo LI Ji-xin LI Zhuo-shi LIU Zhan-fang LIU Xiu-qi Key Laboratory of Automobile Materials Ministry of Education College of Materials Science and Engineering Jilin University. Changehun 130012 P. R. China

Conductive polyvinylidene fluoride（PVDF）matrix composites filled with graphited fiber（GF）or carbon fiber（CF）were prepared by the melt-mixing *** breakage and length distribution of the fibers in the polymer matrix were studied by scanning electron microscope（SEM）and optical microscope（OM）observations,respectively. The differences in the positive temperature coefficient（PTC）effects of the composites were mainly attributed to inter-fiber contact *** elimination of the negative temperature coefficient（NTC）effect for CF/PVDF composite was because of an increase in the viscosity of the polymer *** the same filler content,CF could be more effective,to eliminate the NTC effect when compared with *** of 2%CF（mass fraction）in the PVDF composite with 7%GF（mass fraction）could effectively eliminate the NTC phenomenon of the composite.

关键词： Polyvinylidene fluoride Graphited fiber Carbon fiber Positive temperature coefficient effect Negative temperature coefficient effect

Ultrasound-guided,direct suprainguinal injection for fascia iliaca block for total hip arthroplasty:A retrospective study

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World Journal of Clinical Cases 2021年第15期9卷 3567-3575页

作者： Ya-Li Wang Yun-Qing Liu Hua Ni xin-lei zhang Li Ding Fei Tong Hong-Ye Chen xin-Hua zhang Ming-Jian Kong Department of Anesthesiology The Second Affiliated Hospital of Xuzhou Medical UniversityXuzhou 221000Jiangsu ProvinceChina Rehabilitation Department The Second Affiliated Hospital of Xuzhou Medical UniversityXuzhou 221000Jiangsu ProvinceChina

BACKGROUND Peripheral regional block combined with general anesthesia might be a preferable anesthetic regimen for elderly patients undergoing total hip *** To investigate whether ultrasound-guided,direct suprainguinal injection for fascia iliaca block accelerated recovery after general anesthesia and relieved postoperative pain after total hip *** Patients who underwent total hip arthroplasty under general anesthesia in 2015 or 2019 at The Second Affiliated Hospital of Xuzhou Medical University were retrospectively *** patients were grouped based on whether preoperative suprainguinal fascia iliaca block was performed or *** time to tracheal extubation and time spent in the post-anesthesia care unit(PACU),intraoperative remifentanil dosage,fentanyl consumption in the PACU,postoperative cumulative fentanyl consumption within 48 h after operation,visual analogue scale at rest and during movement on the first and second days after surgery,and adverse reactions were *** Thirty-one elderly patients who underwent total hip arthroplasty were included in the study(block group,n=16;no-block group,n=15).The visual analog scale scores at rest and during movement on the first and second days were significantly lower in the block group than in the no-block group(all P<0.05).Compared with the no-block group,the intraoperative remifentanil dosage was lower,the time to tracheal extubation and the time spent in the PACU were shorter in the block group(all P<0.01).Fentanyl consumption in the PACU and postoperative cumulative fentanyl consumption in 48 h after operation were lower in the block group(all P<0.01).The incidence of dizziness was higher in the no-block group than in the block group(P=0.037).CONCLUSION Ultrasound-guided,direct suprainguinal injection for fascia iliaca block led to faster recovery after general anesthesia and early postoperative pain relief in elderly patients undergoing total hip arthroplasty.

关键词： Suprainguinal fascia iliaca block Elderly patients Total hip arthroplasty General anesthesia recovery Postoperative pain

Fine Mapping of qPAA8,a Gene Controlling Panicle Apical Development in Rice

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Journal of Integrative Plant Biology 2011年第9期53卷 710-718页

作者： Zhi-Jun Cheng Bi-Gang Mao Su-Wei Gao Ling zhang Jiu-Lin Wang Cai-Lin lei xin zhang Fu-Qing Wu Xiu-Ping Guo Jianmin Wan National Key Facility for Crop Gene Resources and Genetic Improvement Institute of Crop ScienceChinese Academy of Agriculture SciencesBeijing 100081China

In rice,one detrimental factor influencing single panicle yield is the frequent occurrence of panicle apical abortion（PAA） under unfavorable climatic *** now,no detailed genetic information has been available to avoid PAA in rice ***,we show that the occurrence of PAA is associated with the accumulation of excess hydrogen *** trait loci（QTLs） mapping for PAA in an F2 population derived from the cross of L-05261（PAA line） × IRAT129（non-PAA variety） identified seven QTLs over a logarithm of the odd（LOD） threshold of 2.5,explaining approximately 50.1% of phenotypic variance for PAA in *** of the QTLs with an increased effect from L-05261,were designated as qPAA3-1,qPAA3-2,qPAA4,qPAA5 and qPAA8,and accounted for 6.8%,5.9%,4.2%,13.0% and 12.2% of phenotypic variance,*** found that the PAA in the early heading plants was mainly controlled by ***,using the sub-populations specific for qPAA8 based on markerassisted selection,we further narrowed qPAA8 to a 37.6-kb interval delimited by markers RM22475 and *** results are beneficial for PAA gene clone.

关键词： RICE PLANT breeding PLANT gene mapping PLANT genetics PLANT development HYDROGEN peroxide LOGARITHMS ANALYSIS of variance

Regulatory effect of a Chinese herbal medicine formula on nonalcoholic fatty liver disease

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World Journal of Gastroenterology 2019年第34期25卷 5105-5119页

作者： Jia-Min Yang Yan Sun Min Wang xin-lei zhang Shu-Jing zhang Yu-Shan Gao Lin Chen Meng-Yao Wu Lu Zhou Yu-Mei Zhou Yue Wang Feng-Jie Zheng Yu-Hang Li School of Traditional Chinese Medicine Beijing University of Chinese Medicine

BACKGROUND Non-alcoholic fatty liver disease(NAFLD)has become a major cause of chronic liver *** Chinese herbal medicine(CHM)Dachaihu decoction(DCHD)has been proved to treat NAFLD with good efficacy in previous *** on the TCM principle of formula formation,we divided DCHD into soothing liver part,invigorating spleen part,and dredging intestine *** officially proposed the concept of“intestinal-hepatic axis”,which systematically explains the interactions between the intestine and *** hypothesized that the effect of CHM on NAFLD is achieved by regulating the liver and ***,we aimed to investigate the possible effect of a CHM formula on NAFLD in a rat *** To investigate the effects of a CHM formula(a decoction of Chinese thorowax root,scutellaria root,and white peony root)on NAFLD and its regulatory effect on the“intestinal-liver”*** Sixty rats were randomly divided into control,model,pioglitazone hydrochloride(PH),and CHM(a decoction of Chinese thorowax root,scutellaria root,and white peony root)*** NAFLD rat model was established using a high-fat highfructose diet for 16 *** the 13th week,rats were administered with PH or a decoction of Chinese thorowax,scutellaria,and white peony root(CHM group)for 4 *** in the control group and model group were administered with an equal volume of distilled *** the end of the study,blood was collected via the abdominal *** tissues were harvested and any morphological changes were observed by hematoxylin-eosin(HE)staining,Oil red O staining,and Masson *** addition,blood lipids,liver function markers,and triglyceride(TG)in liver tissues were *** levels of transforming growth factor-β1(TGF-β1),tumor necrosis factor-α(TNF-α),Toll-like receptor-4(TLR4),and nuclear factor-kappa B(NF-кB)in liver tissues and secreted immunoglobulin A(sIgA)in intestinal tissues were analyzed by ELISA,and protein and mRNA expression of occludin and zonula occ

关键词： Non-alcoholic fatty liver disease Chinese herbal medicine Liver function Intestinal-hepatic axis

Effects of Dachaihu Decoction and Its “Prescription Elements” on Intestinal Flora of Nonalcoholic Fatty Liver Disease Model Rats

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World Journal of Traditional Chinese Medicine 2020年第1期6卷 97-105页

作者： Yan Sun Min Wang Shu-Jing zhang Yu-Shan Gao Lin Chen Meng-Yao Wu xin-lei zhang Lu Zhou Hui-Min Yuan Feng-Jie Zheng Jian Cui Yu-Hang Li School of Traditional Chinese Medicine Beijing University of Chinese MedicineBeijingChina Department of Medicine Columbia University Medical CenterNYUSA

Objective:The study objective was to observe the effect of Dachaihu decoction and its "prescription elements" on intestinal flora of model rats with nonalcoholic fatty liver disease (NAFLD). Materials and Methods:Healthy male Sprague-Dawley rats were randomly divided into the following seven groups (n=105):normal, model, pioglitazone hydrochloride (PH), Shuganlidan, Jianpihuatan, Tongfuxiezhuo, and dachaihu decoction (DD). 16SrRNA high-throughput IIlumina sequencing platform was used for sequencing, and bioinformatics analysis of rat intestinal flora was done. Results:Compared with the normal group, rats in the model, PH, Shuganlidan, Jianpihuatan, Tongfuxiezhuo,and DD groups showed significant differences in the intestinal microflora structure. The microorganisms that play an important role in the normal group are Ruminococcaceae, Oscillospira, Lactobacillales, Lactobacillaceae, Lactobacillus, bacilli, Ruminococcus, TM7, Spirochaetes,Clostridium, Elusimicrobia, Elusimicrobiaceae, Elusimicrobiales, Lactobacillus helveticus, Lactobacillus reuteri, Elusimicrobium, RF39, and Christensenellaceae;in the model group are Ruminococcus gnavus;in the PH group are Prevotella, Paraprevotellaceae, and Blautia;in the Jianpihuatan group are Bacteroidetes, Bacteroidia, Bacteroidales, Roseburia, Rikenellaceae, and?Stridium methylpentosum;in the TongfuXiezhuo group are Bacteroidaceae, Bacteroides, Porphyromonadaceae, Parabacteroide, 4C0d2, Cyanobacteria, YS2, Parabacteroides distasonis,Bacteroides uniformis, Verrucomicrobiaceae, Verrucomicrobiae, Verrucomicrobiales, Akkermansia, Akkermansia muciniphila, Coprobacillus,Parabacteroides gordonii, Blautia producta, and Ruminococcus torques;and in the DD group are Erysipelotrichales, Erysipelotrichi, and Erysipelothrichaceae. Conclusion:The Tongfuxiezhuo prescription elements of the DD significantly improved the intestinal flora of rats with NAFLD, improving the relative abundance of beneficial bacteria in the intestinal flora of NAFLD rat

关键词： Dachaihu decoction intestinal flora nonalcoholic fatty liver disease prescription elements

Joint Probabilistic Scheduling and Resource Allocation for Wireless Networked Control Systems

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IEEE/CAA Journal of Automatica Sinica 2025年第1期 258-260页

作者： Meng Zheng lei zhang Wei Liang IEEE the State Key Laboratory of Robotics and the Key Laboratory of Networked Control Systems Shenyang Institute of Automation Chinese Academy of Sciences the University of Chinese Academy of Sciences

Dear Editor,This letter presents a joint probabilistic scheduling and resource allocation method(PSRA) for 5G-based wireless networked control systems(WNCSs). As a control-aware optimization method, PSRA minimizes the linear quadratic Gaussian(LQG) control cost of WNCSs by optimizing the activation probability of subsystems, the number of uplink repetitions, and the durations of uplink and downlink phases. Simulation results show that PSRA achieves smaller LQG control costs than existing works.

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Fluorinated poly(p-triphenylene isatin) anion exchange membranes based on hydrophilic hydroxyl side chain modulation for fuel cells

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Journal of Energy Chemistry 2025年第1期100卷 702-709页

作者： Yiman Gu Yanchao zhang Zhanyu Li Yijia lei Baozeng Sun Xiaoyu Yu Zhe Wang College of Chemistry and Life Science Changchun University of Technology College of Chemical Engineering Changchun University of Technology School of Materials Science and Engineering Changchun University of Technology Key Laboratory of Advanced Functional Polymer Membrane Materials of Jilin Province

The development of alkaline fuel cells is moving forward at an accelerated pace,and the application of ether-free bonded polymers to anion exchange membranes （AEMs） has been widely ***,the question of the“trade-off”between AEM ionic conductivity and dimensional stability remains *** strategy of inducing microphase separation to improve the performance of AEM has attracted much attention recently,but the design of optimal molecular structures is still being ***,this work introduced different ratios of 3-bromo-1,1,1-trifluoroacetone （x=40,50,and 60） into the main chain of poly（p-terphenylene isatin）.Because fluorinated groups have excellent hydrophobicity,hydrophilic hydroxyl-containing side chains are introduced to jointly adjust the formation of phase separation *** results show that PTI-PTF50-NOH AEM with the appropriate fluorinated group ratio has the best ionic conductivity and alkali stability under the combined effect of *** has an ionic conductivity of 133.83 mS cm-1at 80°*** addition,the OH-conductivity remains at 89%of the initial value at 80°C and 3 M KOH for 1056 h of *** cell polarization curve based on PTI-PTF50-NOH shows a power density of 734.76 mW cm-2at a current density of 1807.7 mA cm-2.

关键词： Anion exchange membranes Poly(p-terphenylene isatin) Hydrophilic-hydrophobic phase separation Fluorinated group

正畸微型种植体治疗安氏Ⅱ类错颌畸形患者牙齿美观度、口腔结构及牙周微环境的影响

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中国医疗美容 2024年第5期14卷 73-76页

作者：张鑫张磊商丘市中医院口腔科河南商丘476100

目的分析正畸微型种植体对安氏Ⅱ类错颌畸形患者的影响。方法选取2022年5月—2023年5月商丘市中医院口腔科收治的84例安氏Ⅱ类错颌畸形患者作为研究对象,按照治疗方式不同分为两组,各42例。对照组行传统正畸治疗,观察组行正畸微型种植... 详细信息

目的分析正畸微型种植体对安氏Ⅱ类错颌畸形患者的影响。方法选取2022年5月—2023年5月商丘市中医院口腔科收治的84例安氏Ⅱ类错颌畸形患者作为研究对象,按照治疗方式不同分为两组,各42例。对照组行传统正畸治疗,观察组行正畸微型种植体治疗。对比两组临床疗效、牙齿美观度、咀嚼功能、口腔结构、口腔健康情况、牙周微环境、并发症。结果观察组治疗总有效率为95.24%(40/42),高于对照组的80.95%(34/42),并发症发生率为7.14%(3/42),低于对照组的23.81%(10/42);且治疗后的红色美学指数(PES)评分为(7.96±1.12)分、咬合力为(73.49±7.84)Ibs、咀嚼效率为(57.89±4.63)%,高于对照组的(6.01±0.89)分、(75.21±6.48)Ibs、(53.32±4.15)%,磨牙移位距离为(3.69±0.53)mm,小于对照组的(6.31±1.28)mm,中切牙倾角差为(25.71±3.02)°、上中切牙凸距差为(4.19±0.68)mm,大于对照组的(12.48±2.35)°、(2.41±0.35)mm,牙龈指数(GI)为(0.63±0.06)分、菌斑指数(PL)为(0.80±0.11)分、基质金属蛋白酶-2(MMP-2)为(2.28±0.36)μg/g、基质金属蛋白酶-9(MMP-9)为(2.40±0.21)μg/g,低于对照组的(0.89±0.15)分、(1.21±0.18)分、(3.67±0.53)μg/g、(3.76±0.29)μg/g(P<0.05)。结论正畸微型种植体能够恢复牙周结构,改善牙周微环境,提高牙齿美观度,有利于咀嚼功能的改善,且无严重并发症。

关键词：安氏Ⅱ类错颌畸形咀嚼功能牙周微环境并发症

Recent progress in constructing fluorinated solid-electrolyte interphases for stable lithium metal anodes

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 270-291页

作者： Di zhang Pengfei Lv Wei Qin xin He Yuanhua He Civil Aircraft Fire Science and Safety Engineering Key Laboratory of Sichuan Province College of Civil Aviation Safety EngineeringCivil Aviation Flight University of ChinaGuanghan 618307China School of Chemical Engineering Sichuan UniversityChengdu 610065China

Lithium metal batteries(LMBs)are emerging as a promising energy storage solution owing to their high energy density and specific ***,the non-uniform plating of lithium and the potential rupture of the solid-electrolyte interphase(SEI)during extended cycling use may result in dendrite growth,which can penetrate the separator and pose significant short-circuit *** a stable SEI is essential for the long-term operation of the ***-rich SEI has garnered significant attention for its ability to effectively passivate electrodes,regulate lithium deposition,and inhibit electrolyte *** the structural components and preparation methods of existing fluorinated SEI is crucial for optimizing lithium metal anode *** paper reviews the research on optimizing LiF passivation interfaces to protect lithium metal *** focuses on four types of compositions in fluorinated SEI that work synergistically to enhance SEI *** instance,combining compounds with LiF can further enhance the mechanical strength and ionic conductivity of the *** metals with LiF significantly improves electrochemical performance at the SEI/anode interface,with a necessary focus on reducing electron tunneling ***,incorporating polymers with LiF offers balanced improvements in interfacial toughness and ionic conductivity,though maintaining structural stability over long cycles remains a critical area for future *** alloys combined with LiF increase surface energy and lithium affinity,challenges such as dendrite growth and volume expansion *** summary,this paper emphasizes the crucial role of interfacial structures in LMBs and offers comprehensive guidance for future design and development efforts in battery technology.

关键词： LiF lithium metal anodes solid-electrolyte interphase interface cycling stability