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Chinese Journal of Polymer Science 2022年第2期40卷 138-146页

作者： Ze-Wang He Qiang Zhang Chen-Xi Li hong-ting Han Yan Lu School of Materials Science&Engineering Tianjin Key Laboratory for Photoelectric Materials and DevicesKey Laboratory of Display Materials&Photoelectric DevicesMinistry of EducationTianjin University of TechnologyTianjin 300384China College of Chemistry Nankai UniversityTianjin 300071China

Three alternating conjugated polymers,namely PFTP,PCz TP,and PSi TP,which combine a thieno[3,4-b]pyrazine(TP)unit with different benzene-based donor units such as 9,9-dioctylfluorene,9-heptadecyl-9H-carbazole and 5,5-dioctyl-5H-dibenzo[b,d]silole,were synthesized in good yield(>85%)and high molecular weight up to Mn=5.82×10^(4) via direct arylation polymerization(DAr P).All the resultant polymers exhibit moderate bandgap of about 1.80 e V and strong deep red/near-infrared emitting in the solid *** them,the PSi TP-based electroluminescence(EL)devices with an architecture of ITO/PEDOT:PSS/PTAA/emitting layer/TPBi/Li F/Al give the best performance with a maximum luminance of 2543 cd/m^(2) at 478 m A/cm^(2).This work expands the application scope of high-performance conjugated polymers which can be synthesized by DAr P.

关键词： Thieno[3 4-b]pyrazine Alternating D-A structure Direct arylation polymerization Conjugated polymer Organic light-emitting diodes

Location-dependent metamaterials in terahertz range for reconfiguration purposes

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Photonics Research 2016年第3期4卷 122-125页

作者： ting Bu Kejian Chen hong Liu Jianjun Liu Zhi hong Songlin Zhuang Shanghai Key Lab of Modern Optical System Engineering Research Center of Optical Instrument and SystemMinistry of EducationUniversity of Shanghai for Science and Technology Centre for THz Research China Jiliang University

We propose and demonstrate a multifunctional location-dependent metamaterial in the terahertz(THz) range in which the unit cell consists of two pairs of coupled resonators. Experimental and simulation results of our devices reveal that both pairs of the coupled resonators will keep their individual resonance modes when they join together. Thus, the overall transmission spectrum is a combination of frequency response spectra of its corresponding constituent parts. While changing the locations of the inner resonators in our structure, controllable width of transmission window and changeable number of transmission dips can be realized. Our design provides a feasible structure for multifunctional microelectromechanical devices.

关键词： CSRR Location-dependent metamaterials in terahertz range for reconfiguration purposes SRRI

Improving Impact Toughness of Polylactide/Ethylene-co-vinyl-acetate Blends via Adding Fumed Silica Nanoparticles:Effects of Specific Surface Area-dependent Interfacial Selective Distribution of Silica

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Chinese Journal of Polymer Science 2021年第8期39卷 1040-1049,I0008页

作者： ting-ting Zhang Mei-Xi Zhou Zhen-You Guo You-Bo Zhao Di Han Hao Xiu hong-Wei Bai Qin Zhang Qiang Fu College of Polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065China

Adding fumed silica(Si0_(2))has been considered as an effective method for tailoring the phase morphology and performance of elastomer-toughened plastic binary *** has been demonstrated that the selective distribution of SiO_(2) plays a decisive role in the mechanical properties of plastic/elastomer/SiO_(2)nanocomposites,especially for the impact *** this work,we aim to illuminate the role of specific surface area in controlling their selective distribution of fumed SiO_(2) and consequent mechanical properties of plastic/elastomer binary *** types of SiO_(2) with different specific surface areas were incorporated into polylactide/ethylene-co-vinyl-acetate(PLA/EVA)model blends by melt blending *** was found that the selective distribution of SiO_(2) is largely determined by their specific surface areas,***_(2) nanoparticles with low specific surface area has a stronger tendency to be located at the interface between PLA matrix and EVA dispersed phase as compared to those with high specific surface *** specific surface area-dependent interfacial selective distribution of SiO_(2) is mainly attributed to the extent of increased viscosity of EVA dispersed phase in which SiO_(2)nanoparticles are initially dispersed and resultant migration rate of SiO_(2) *** interfacial localized SiO_(2) nanoparticles induce an obvious enhancement in the impact toughness with strength and modulus well *** importantly,in the case of the same interfacial distribution,toughening efficiency is increased with the specific surface area of SiO_(2).Therefore,this is an optimum specific surface area of SiO_(2) for the *** work not only provides a novel way to manipulate the selective distribution of SiO_(2) in elastomer-toughened plastic blends toward high-performance,but also gives a deep insight into the role of interfacial localized nanoparticles in the toughening mechanism.

关键词： Fumed silica Specific surface area Selective distribution Polylactide Impact toughness

Weekly taxane-anthracycline combination regimen versus tri-weekly anthracycline-based regimen for the treatment of locally advanced breast cancer:a randomized controlled trial

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Chinese Journal of Cancer 2017年第6期36卷 274-281页

作者： Qiu-Wen Tan ting Luo hong Zheng ting-Lun Tian Ping He Jie Chen He-Lin Zeng Qing Lv Department of Breast Surgery West China HospitalSichuan University Department of Medical Oncology West China HospitalSichuan University

Background:Extensive studies have confirmed the efficacy of taxanes in combination with anthracycline-based chemotherapy on breast ***,few studies have assessed the efficacy of weekly taxane-anthracycline regimens on locally advanced breast *** study was to compare the efficacy and safety of a weekly taxaneanthracycline regimen with those of tri-weekly anthracycline-based regimen in patients with locally advanced breast ***:Patients with locally advanced breast cancer were randomized to receive 4-6 cycles of neoadjuvant chemotherapy with tri-weekly 5-fluorouracil-epirubicin-cyclophosphamide(FEC) regimen or weekly paclitaxel-epirubicin(PE) *** primary endpoint was the pathologic complete response(pCR) *** endpoints included the clinical tumor response,breast-conserving surgery rate,and adverse ***:Between March 2010 and September 2013,293 patients were randomized to the FEC(n=151) and PE(n=142) *** overall clinical response rate was significantly higher in the PE arm than in the FEC arm(76.06%vs.59.95%,P=0.001).Consistently,the post-chemotherapy pathologic T and N stages were significantly lower in the PE arm than in the FEC arm(P<0.001).However,the pCR rate was similar in the two arms(10.61%vs.12.31%,P=0.665).Overall,36(27.27%) patients in the FEC arm and 6(35.28%) in the PE arm were qualified for breast-conserving *** adverse events were comparable in both arms,with more severe neutropenia in the PE arm than in the FEC arm(11.97%vs.5.96%,P=0.031).Conclusions:In patients with locally advanced breast cancer,weekly PE was not superior to FEC in terms of ***,weekly PE has a higher response rate and superior down-staging *** this account,the PE regimen may be considered an alternative option for locally advanced breast ***-term follow-up data are needed to confirm the efficacy of this regimen on locally advanced breast *** registration Chinese clinical trial registry,Ch

关键词：随机对照试验治疗方案乳腺癌紫杉烷晚期环类药物蒽

PROSPECTIVE COMPARISON OF ENDOSCOPIC AND OPEN SURGICAL METHODS FOR CARPAL TUNNEL SYNDROME

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Chinese Medical Sciences Journal 2007年第2期22卷 104-107页

作者： Ye Tian hong Zhao ting Wang Department of Orthopedics Peking Union Medical College Hospital Chinese Academy of Medical Sciences ＆ Peking Union Medical College Beijing 100730

Objective To compare outcomes of patients undergoing either open or endoscopic carpal tunnel release for the treatment of idiopathic carpal tunnel syndrome. Methods A prospective, randomized study was performed on 70 hands in 62 patients with idiopathic carpal tunnel syndrome from April 2000 to April 2004. Either open (36 hands in 30 patients) or endoscopic (34 hands in 32 patients) carpal tunnel release was performed randomly. Symptom improvement, complications, and the time of operation, in-hospital stay, and return to work between the two groups were assessed with average 2 years of follow-up. The electromyography was tested pre- and 3 months post-operation. Results There were no significant differences between the two surgical groups with regard to postoperative improvements of symptom, electromyography tests, and the incidence of complications. But it was statistically less in the rate of scar tenderness, the time of operation, in-hospital stay, and return to work in the endoscopic group compared with the open group (P<0.05). Conclusions The endoscopic carpal tunnel release is a reliable method in the treatment of idiopathic carpal tunnel syndrome. And it has the advantages of slight scar tenderness, less operation time, less in-hospital stay, early functional recovery, safety, and high satisfaction rate compared with open methods.

关键词： carpal tunnel syndrome endoscopic operation outcome

Distribution and correlation of refractive parameters in children with different corneal curvatures in southeast China

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International Journal of Ophthalmology(English edition) 2024年第4期17卷 713-720页

作者： Si-Yuan He ting He Meng-Yue Xu Ying-Jie Ni Chao-Yang hong ting Shen The Second Clinical College Zhejiang Chinese Medical UniversityHangzhou 310053Zhejiang ProvinceChina Department of Ophthalmology Zhejiang Provincial People’s HospitalAffiliated People’s HospitalHangzhou Medical CollegeHangzhou 310014Zhejiang ProvinceChina Eye Center the Second Affiliated HospitalZhejiang University School of MedicineHangzhou 310009Zhejiang ProvinceChina

AIM:To analyze the distribution of refractive status in school-age children with different corneal curvatures(CC)and the correlation between CC and refractive ***:A total of 2214 school-aged children of grade 4 in Hangzhou who were screened for school myopia were *** distance visual acuity(UCDVA),non-cycloplegic refraction,axial length(AL),horizontal and vertical corneal curvature(K1,K2)were measured and spherical equivalent(SE),corneal curvature radius(CCR)and axial length/corneal radius of curvature ratio(AL/CR)were ***<5.0 and SE≤-0.50 D were classified as school-screening *** to the different CCRs,the patients were divided into the lower corneal curvature(LCC)group(CCR≥7.92)and the higher corneal curvature(HCC)group(CCR<7.92).Each group was further divided into the normal AL subgroup and the long AL *** refractive parameters were compared to identify any differences between the two ***:Both SE and AL were greater in the LCC group(P=0.013,P<0.001).The prevalence of myopia was 38% in the LCC group and 44% in the HCC group(P<0.001).The proportion of children without screening myopia was higher in the LCC group(62%)than in the HCC group(56%).Among these children without screening myopia,the proportion of long AL in the LCC group(24%)was significantly higher than that in the HCC group(0.012%;P<0.001).The change of SE in the LCC group was less affected by the increase of AL than that in the HCC ***:School-aged children in the LCC group have a lower incidence of screening myopia and longer *** CC can mask SE reduction and AL growth to some extent,and the change of AL growth change more in children with low CC than high *** the onset of myopia,its growth rate is even faster than that after the onset of myopia.

关键词： school-aged children corneal curvature axial length spherical equivalent myopia screening

Clinical effect of methimazole combined with selenium in the treatment of toxic diffuse goiter in children

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World Journal of Clinical Cases 2022年第4期10卷 1190-1197页

作者： Xiao-hong Zhang Gao-Pin Yuan ting-Li Chen Department of Pediatric Endocrinology Quanzhou Women and Children’s HospitalQuanzhou 362000Fujian ProvinceChina

BACKGROUND The incidence of toxic diffuse goiter(Graves’disease)is higher in adolescents and preschool-aged children,with an upward *** incidence at 6–13 years of age is approximately 11.0%,and the incidences in men and women are 7.8%and 14.3%,*** To explore the clinical effect of methimazole combined with selenium in the treatment of toxic diffuse goiter(Graves’disease)in children and its effect on serum anti-thyroglobulin antibody(TRAb)and anti-thyroid peroxidase antibody(TPOAb).METHODS A total of 103 children with Graves’disease treated in our hospital from January 2018 to June 2021 were divided into a traditional group and a combined group(15-20 mg methimazole orally given to children)and a combined group(50μg selenium added on the basis of traditional treatment)according to different treatment methods to explore the therapeutic effects of the two methods and to observe the changes in thyroid volume and serum TRAb,TPOAb,free thyroxine(FT4)and inflammatory factor levels before and after *** time taken for FT4 to return to normal was compared between the two *** Treatment was significantly more effective in the combined group than in the traditional group(P<0.05).The thyroid volumes of the children in the two groups was measured before and after *** volume decreased significantly after treatment in both groups,and the thyroid volume was significantly lower in the combined group than in the traditional group(P<0.05).The serum levels of interleukin-6(IL-6),IL-8,TRAb,TPOAb and FT4 in the two groups were detected before and after *** levels of IL-6,IL-8,TRAb,TPOAb and FT4 were significantly lower in the combined group than in the traditional group(P<0.05).Follow-up of the children in the two groups showed that compared with the traditional group,it took less time for children in the combined group to return to the normal level(P<0.05).CONCLUSION Methimazole combined with selenium can effectively treat Gra

关键词： Methimazole Selenium Children Antithyroid globulin Anti-thyroid peroxidase antibody

Discovery of Balmer broad absorption lines in the quasar LBQS 1206+1052

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Research in Astronomy and Astrophysics 2012年第4期12卷 369-382页

作者： Tuo Ji ting-Gui Wang hong-Yan Zhou Hui-Yuan Wang Key Laboratory for Research in Galaxies and Cosmology University of Science and Technology of China （USTC） Hefei 230026 China Center for Astrophysics USTC Hefei 230026 China Polar Research Institute of China Shanghai 200136 China

We report the discovery of Balmer broad absorption lines （BALs） in the quasar LBQS 1206＋1052 and present a detailed analysis of the peculiar absorption line spectrum. Besides the Mg II λλ2796, 2803 doublet, BALs are also detected in the He I＊ multiplet at λλ2946, 3189, 3889 A arising from the metastable helium 2 3 S level, and in Hα and Hβ from the excited hydrogen H I＊ n = 2 level, which are rarely seen in quasar spectra. We identify two components in the BAL troughs of v ～ 2000 km s 1 width： One component shows an identical profile in H I＊, He I＊ and Mg II with its centroid blueshifted by v c ≈ 726 km s-1 . The other component is detected in He I＊ and Mg II with v c ≈ 1412 km s-1 . We estimate the column densities of H I＊, He I＊, and Mg II, and compare them with possible level population mechanisms. Our results favor the scenario that the Balmer BALs originate in a partially ionized region with a column density of N H ～ 10 21 10 22 cm-2 for an electron density of n e ～ 10 6 10 8 cm-3 via Lyα resonant scattering pumping. The harsh conditions needed may help to explain the rarity of Balmer absorption line systems in quasar spectra. With an i-band PSF magnitude of 16.50, LBQS 1206＋1052 is the brightest Balmer-BAL quasar ever reported. Its high brightness and unique spectral properties make LBQS 1206＋1052 a promising candidate for followup high-resolution spectroscopy, multi-band observations, and long-term monitoring.

关键词： galaxies active -- quasar absorption lines -- quasar individual (LBQS1206+1052)

Reaction mechanism of self-propagating magnesiothermic reduction of ZrB_2 powders

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Rare Metals 2013年第4期32卷 408-413页

作者： Yong-ting Zheng hong-Bo Li Zhong-Hai Xu Jing Zhao Pan Yang Science and Technology on Advanced Composites in Special Environments Laboratory Harbin Institute of Technology Materials Engineering Department North China Institute of Aerospace Engineering

Fine zirconium diboride （ZrB2） powders with high purity were successfully prepared by combustion synthesis through magnesiothermic reduction process in Mg-B2O3-ZrO2 system. The reaction mechanism was investigated by differential thermal analysis and quenching experiment. The results show that the whole magnesio-thermic reduction process includes three stages： first, molten B2O3 and Mg formed above the temperature of 650 ℃, and glassy B2O3 and solid ZrO2 particles were coated on the surface of the molten Mg; thus, the hollow balls can be formed when the molten Mg was exuded under capillary function. Second, ZrO2 particles reacted with molten Mg to form Zr and MgO with dissolution-precip-itation mechanism, which released a large amount of heat to induce the diffusion reaction between B203 and Mg to form B and MgO. Last, Zr reacted with B to form ZrB2 grains. The preparation of ZrB2 by self-propagating syn-thesis in Mg-B2O3-ZrO2 system is a solid-liquid-liquid reaction.

关键词： Reaction mechanism Magnesiothermicreduction Zirconium boride Self-propagating synthesis

A 18-mW,20-MHz bandwidth,12-bit continuous-time∑△modulator using a power-efficient multi-stage amplifier

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Journal of Semiconductors 2012年第1期33卷 120-126页

作者： Li Ran Li Jing Yi ting hong Zhiliang State Key Laboratory of ASIC and System Fudan University Shanghai 201203China

A fourth-order continuous-time sigma delta modulator with 20-MHz bandwidth, implemented in 130- nm CMOS technology is presented. The modulator is comprised of an active-RC operational-amplifier based loop filter, a 4-bit internal quantizer and three current steering feedback DACs. A three-stage amplifier with low power is designed to satisfy the requirement of high dc gain and high gain-bandwidth product of the loop filter. Non-return- to-zero DAC pulse shaping is utilized to reduce clock jitter sensitivity. A special layout technique guarantees that the main feedback DAC reaches 12-bit match accuracy, avoiding the use of a dynamic element matching algorithm to induce excess loop delay. The experimental results demonstrate a 64.6-dB peak signal-to-noise ratio, and 66-dB dynamic range over a 20-MHz signal bandwidth when clocked at 480 MHz with 18-mW power consumption from a 1.2-V supply.

关键词： continuous-time sigma delta modulation low power design multistage operational amplifier