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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2006年第10期7卷 794-799页

作者： LU Hui-shan XU Hui-rong YING Yi-bin FU Xia-ping YU Hai-yan TIAN Hai-qing School of Biosystems Engineering and Food Science Zhejiang University Hangzhou 310029 China

Nondestructive method of measuring soluble solids content (SSC) of citrus fruits was developed using Fourier transform near infrared reflectance (FT-NIR) measurements collected through optics fiber. The models describing the relationship between SSC and the NIR spectra of citrus fruits were developed and evaluated. Different spectra correction algorithms (standard normal variate (SNV), multiplicative signal correction (MSC)) were used in this study. The relationship between laboratory SSC and FT-NIR spectra of citrus fruits was analyzed via principle component regression (PCR) and partial least squares (PLS) re- gression method. Models based on the different spectral ranges were compared in this research. The first derivative and second derivative were applied to all spectra to reduce the effects of sample size, light scattering, instrument noise, etc. Different baseline correction methods were applied to improve the spectral data quality. Among them the second derivative method after baseline correction produced best noise removing capability and yielded optimal calibration models. A total of 170 NIR spectra were acquired; 135 NIR spectra were used to develop the calibration model; the remaining spectra were used to validate the model. The developed PLS model describing the relationship between SSC and NIR reflectance spectra could predict SSC of 35 samples with correlation coefficient of 0.995 and RMSEP of 0.79 °Brix.

关键词： FT-NIR spectroscopy Soluble solids content Intact citrus Partial least squares analysis Reflectance mode

Deep inferior epigastric perforator flap for breast reconstruction:experience with 43 flaps

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Chinese Medical Journal 2007年第5期120卷 380-384页

作者： yan Xiao-qing yanG Hong-yan ZHAO Yu-ming YOU Lei XU Jun Division of Plastic Surgery Peking Union Medical College Hospital Chinese Academy of Medical Sciences Beijing 100730 China Division of Piastic Surgery Haidian Hospital Beijing 100080 China

Background In the past decade, there has been increasing breast reconstructions after mastectomy. The ideal material for reconstruction of a breast is fat and skin. The transverse rectus abdominis myocutaneous （TRAM） flap has been the gold standard for breast reconstruction until recently. Abdominal wall function is a major concern for plastic surgeons in breast reconstruction with TRAM flaps. The deep inferior epigastric perforator （DIEP） free flap spares the whole rectus abdominis muscle, includes skin and fat only, and therefore preserves adequate abdominal wall competence. The aim of this study was to summarize our experience in breast reconstruction with DIEP flap. Methods Between March 2000 and August 2005, a total of 43 breast reconstructions were performed on 40 patients by our surgeons using DIEP flap （3 patients had bilateral procedures）, 14 of them were immediate surgeries and 26 were delayed. Abdominal function, satisfaction with the donor site and reconstructed breast, and the sensation recovery was assessed respectively during follow-up. Results The mean age of the patients was 38.6 years （range, 28-50）. The size of the flaps was 11 cm×26 cm in average （height 10-12 cm, width 15-33 cm）. The mean length of the vascular pedicles was 9.3 cm （range, 7-12）. The patients were followed up for a mean of 16 months （range, 6-30 months）. During the follow-up, 2 （5%） patients had total flap loss, 2 （5%） had partial necrosis, 4 （9%） had wound edge necrosis in the abdomen, and 1 had axillary seroma. None of the patients had hernia, and all of them were able to resume their daily activities after the operation. Patient satisfaction with the reconstructed breast rated high, 95% of the patients achieved spontaneous return of sensation in the reconstructed breast, but none of them had a sensation equivalent or approximate to the normal. Conclusions The DIEP flap has the same benefits as the TRAM flap without destroying the continuity of the rectus muscle. It can reduce

关键词： mammaplasty surgical flaps deep inferior epigastric perforator flap

Scalability of 3D deterministic particle transport on the Intel MIC architecture

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Nuclear Science and Techniques 2015年第5期26卷 88-97页

作者：王庆林刘杰龚春叶邢座程 Science and Technology on Parallel and Distributed Processing Laboratory National University of Defense Technology Science and Technology on Space Physics Laboratory

The key to large-scale parallel solutions of deterministic particle transport problem is single-node computation performance. Hence, single-node computation is often parallelized on multi-core or many-core computer architectures. However, the number of on-chip cores grows quickly with the scale-down of feature size in semiconductor technology. In this paper, we present a scalability investigation of one energy group time-independent deterministic discrete ordinates neutron transport in 3D Cartesian geometry(Sweep3D) on Intel's Many Integrated Core(MIC) architecture, which can provide up to 62 cores with four hardware threads per core now and will own up to 72 in the future. The parallel programming model, Open MP, and vector intrinsic functions are used to exploit thread parallelism and vector parallelism for the discrete ordinates method, respectively. The results on a 57-core MIC coprocessor show that the implementation of Sweep3 D on MIC has good scalability in performance. In addition, the application of the Roofline model to assess the implementation and performance comparison between MIC and Tesla K20 C Graphics Processing Unit(GPU) are also reported.

关键词：计算机体系结构可扩展性粒子输运三维几何英特尔麦克风离散坐标法计算性能

龋源性露髓成熟恒牙行活髓切断术的临床疗效观察

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临床口腔医学杂志 2024年第9期40卷 543-547页

作者：陈晓建董青山马毅慧李燕侠熊文秀中部战区总医院湖北武汉430070

目的:观察龋源性露髓成熟恒牙行活髓切断术的临床疗效,并对比部分冠髓切断术(partial pulpotomy,PP)、冠髓切断术(full pulpotomy,FP)与根管治疗(root canal treatment,RCT)的疼痛控制效果、临床成功率与牙体功能。方法:选择于本院就诊... 详细信息

目的:观察龋源性露髓成熟恒牙行活髓切断术的临床疗效,并对比部分冠髓切断术(partial pulpotomy,PP)、冠髓切断术(full pulpotomy,FP)与根管治疗(root canal treatment,RCT)的疼痛控制效果、临床成功率与牙体功能。方法:选择于本院就诊的90例患者(90颗龋源性露髓成熟恒牙),按不同治疗措施分为3组:术中去除部分冠髓,见牙髓断面新鲜,若能在5 min内止血,则行三氧化矿物凝聚体(mineral trioxide aggregate,MTA)部分冠髓切断术(PP组);否则继续去除全部冠髓至根管口,能在5 min内止血,则行MTA冠髓切断术(FP组);若还未能有效止血,则行根管治疗术(RCT组)。术后24 h、48 h、72 h采用视觉模拟评分(visual analogue scale,VAS)法评估患牙疼痛情况,对比3种治疗方式对疼痛控制的效果;术后1、3、6、12个月,通过患者症状、临床检查及根尖片进行疗效评价,对比3种治疗方式成功率;术后12个月对比3组患牙牙体功能。结果:PP组、FP组患者疼痛评分随时间逐渐降低(P均0.05),术后48、72 h PP组、FP组两组间疼痛评分比较差异均无统计学意义(P均>0.05),但PP组、FP组疼痛评分低于RCT组,差异均有统计学意义(P均0.05);术后12个月,3组患牙舒适、咀嚼、稳固、语言功能差异无统计学意义(P>0.05)。结论:部分冠髓切断术及冠髓切断术治疗龋源性露髓成熟恒牙效果良好,与根管治疗相比,术后疼痛控制效果更好,更利于提高远期疗效,是适合龋源性露髓成熟恒牙的治疗方式。

关键词：活髓保存治疗成熟恒牙部分冠髓切断术冠髓切断术三氧化矿物凝聚体

Electrochemiluminescence of Bare Glassy Carbon with Benzoyl Peroxide as the Coreactant in N,N-Dimethylformamide

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Journal of Analysis and Testing 2020年第4期4卷 257-263页

作者： ShuiJian He Kenneth Chu Jonathan Michael Wong Liu-qing yang Jonathan Ralph Adsetts Rui-Zhong Zhang yan-Hua Chen Zhi-Feng Ding College of Materials Science and Engineering Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest ResourcesNanjing Forestry UniversityNanjing 210037China Department of Chemistry The University of Western OntarioLondonON N6A 5B7Canada Tianjin Key Laboratory of Molecular Photoelectronic Sciences Department of ChemistryTianjin UniversityTianjin 300072China

The electrochemiluminescence(ECL)properties of many carbon materials have been reported with glassy carbon(GC),Pt,Au or indium tin oxide(ITO)as the working electrode(WE).As one type of carbon materials,GC itself can generate ECL *** research groups have already noticed the ECL signal from GC WE and reported the results of GC WE with respect to their ***,comprehensive analyses of ECL properties of GC WE are ***,the ECL properties of GC WE in organic electrolyte with benzoyl peroxide as the coreactant are *** results are of great importance to distinguish the true ECL data of luminophores from that of GC.

关键词： Glassy carbon Electrochemiluminescence(ECL) Spooling ECL spectroscopy ECL intensity Coreactant Benzoyl peroxide

Investigation of all-optical regeneration based on self-phase modulation in microstructured fibers

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Optoelectronics Letters 2007年第1期3卷 18-21页

作者： WEI yan-fen XU Yong-zhao Zhang Xia HUANG Yong-qing REN Xiao-min Optical Communication Center Beijing University of Posts and Telecommunications Beijing 100876 China

All-optical regeneration based on self-phase modulation in microstructured fibers is studied. The effects of pulse peak power into the fiber, pulse width and filter parameters on the performance of the regenerator are investigated. The effects of normal dispersion and anomalous dispersion of the microstructured fiber on optical regeneration are compared. The nu- merical results show that optical regeneration can be achieved by using microstructured fibers with normal dispersion or anomalous dispersion, but the normal dispersion decreases the oscillatory structure in the broadened spectra and obtain a better regenerator transfer function. In order to achieve optical regeneration, the input peak power into the microstructured fiber and the filter parameters need to meet certain requirements. By optimizing those parameters, a better regeneration result can be obtained.

关键词：微结构光纤全光再生自相位调制滤波器参数

RESEARCH ON FRACTAL CHARACTERISTICS OF URBAN TRAFFIC NETWORK STRUCTURE BASED ON GIS

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Chinese Geographical Science 2002年第4期12卷 346-349页

作者： LI Jiang,WANG Xiao-yan,GUO qing-sh eng(School of Resources and Environment al Sciences,Wuhan University,Wuhan 430079,P.R.China) School of Resources and Environmental Sciences Wuhan University Wuhan 430079 P. R. China

Traffic network is an importance asp ect of researching controllable parameters of an urban spatial *** on GIS,traffic network str ucture complexity can be understood by using fractal geometry in which th e length-radius dimension describes change of network density,and ramification-radius dimension describes complexity and accessibility of urban *** i s propitious to analyze urban traffic network and to understand dynamic c hange process of traffic network using expanding f ractal-dimension *** the length-radius dimension and ramifica-tion-radius dimension could be rega rd as reference factor of quantitative describing urban traffic network.

关键词： urban traffic network expanding fractal dimension characteristics GIS

Endoscopic retrograde cholangiopancreatography in children with symptomatic pancreaticobiliary maljunction: A retrospective multicenter study

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World Journal of Gastroenterology 2019年第40期25卷 6107-6115页

作者： Jing-qing Zeng Zhao-Hui Deng Kai-Hua yang Tian-Ao Zhang Wen-Yu Wang Jian-Mei Ji Ya-Bin Hu Chun-Di Xu Biao gong Department of Pediatric Digestive Diseases Shanghai Children’s Medical CenterShanghai Jiao Tong University School of MedicineShanghai 200127China Department of Digestive Diseases Shanghai Shuguang HospitalShanghai University of Traditional Chinese MedicineShanghai 201203China Department of Clinical Epidemiology and Biostatistics Shanghai Children’s Medical CenterShanghai Jiao Tong University School of MedicineShanghai 200127China Department of Pediatrics Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghai 200025China

BACKGROUND Endoscopic retrograde cholangiopancreatography(ERCP)has been widely used in pediatric patients with cholangiopancreatic *** To evaluate the efficacy,safety,and long-term follow-up results of ERCP in symptomatic pancreaticobiliary maljunction(PBM).METHODS A multicenter,retrospective study was conducted on 75 pediatric patients who were diagnosed with PBM and underwent therapeutic ERCP at three endoscopy centers between January 2008 and March *** were divided into four PBM groups based on the fluoroscopy in *** clinical characteristics,specific ERCP procedures,adverse events,and long-term follow-up results were retrospectively *** Totally,112 ERCPs were performed on the 75 children with symptomatic *** manifestations included abdominal pain(62/75,82.7%),vomiting(35/75,46.7%),acholic stool(4/75,5.3%),fever(3/75,4.0%),acute pancreatitis(47/75,62.7%),hyperbilirubinemia(13/75,17.3%),and elevated liver enzymes(22/75,29.3%).ERCP interventions included endoscopic sphincterotomy,endoscopic retrograde biliary or pancreatic drainage,stone extraction,***-related complications were observed in 12 patients and included post-ERCP pancreatitis(9/75,12.0%),gastrointestinal bleeding(1/75,1.3%),and infection(2/75,2.7%).During a mean follow-up period of 46 mo(range:2 to 134 mo),ERCP therapy alleviated the biliary obstruction and reduced the incidence of *** overall effective rate of ERCP therapy was 82.4%;seven patients(9.3%)were lost to follow-up,eight(11.8%)re-experienced pancreatitis,and eleven(16.2%)underwent radical surgery,known as prophylactic excision of the extrahepatic bile duct and *** ERCP is a safe and effective treatment option to relieve biliary or pancreatic obstruction in symptomatic PBM,with the characteristics of minor trauma,fewer complications,and repeatability.

关键词： Cholangiopancreatic diseases Endoscopic retrograde cholangiopancreatography Pancreaticobiliary maljunction Pancreatitis Pediatric patients Follow-up

Longer duration of initial invasive mechanical ventilation is still a crucial risk factor for moderate‑to‑severe bronchopulmonary dysplasia in very preterm infants:a multicentrer prospective study

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World Journal of Pediatrics 2023年第6期19卷 577-585页

作者： Cong Dou Yong-Hui Yu qing-Cui Zhuo Jian-Hong Qi Lei Huang yan-Jie Ding De-Juan yang Li Li Dan Li Xiao-Kang Wang yan Wang Xin Qiao Xiang Zhang Bing-Jin Zhang Hai-yan Jiang Zhong-Liang Li Simmy Reddy Department of Neonatology Maternal and Child Health Care Hospital of Shandong ProvinceShandong UniversityJinan 250014China Department of Neonatology Shandong Provincial Hospital affiliated to Shandong First Medical UniversityHuaiYin DistrictNo.324Jingwu RoadJinan 250021China Department of Neonatology Shandong Provincial HospitalShandong UniversityHuaiYin DistrictNo.324Jingwu RoadJinan 250021China Department of Neonatology Qilu Hospital of Shandong UniversityJinan 250012China Department of Neonatology Shandong Provincial Maternal and Child Health Care HospitalJinan 250014China Department of Neonatology Yantai Yuhuangding HospitalYantai 264000China Department of Neonatology The First Affiliated Hospital of Shandong First Medical UniversityJinan 250014China Department of Neonatology Linyi People’s HospitalLinyi 276000China Department of Neonatology Liaocheng People’s HospitalLiaocheng 252000China Department of Neonatology The Affiliated Taian City Central Hospital of Qingdao UniversityTaian 271000China Department of Neonatology Jinan Maternity and Child Healthcare HospitalJinan 250001China Department of Neonatology Hebei Petro China Central HospitalLangfang 065000China Department of Neonatology Shengli Olifield Central HospitalDongying 257000China Department of Neonatology The Third Hospital of Baogang GroupBaotou 014000China Department of Neonatology W.F.Maternal and Child Health HospitalWeifang 261011China Cheeloo College of Medicine Shandong UniversityJinan 250000China

Objectives We aimed to evaluate the risk factors for moderate-to-severe bronchopulmonary dysplasia(BPD)and focus on discussing its relationship with the duration of initial invasive mechanical ventilation(IMV)in very preterm neonates less than 32 weeks of gestational age(GA).Methods We performed a prospective cohort study involving infants born at 23–31 weeks of GA who were admitted to 47 different neonatal intensive care unit(NICU)hospitals in China from January 2018 to December *** data were obtained from the Sina-northern Neonatal Network(SNN)*** We identified 6538 very preterm infants,of whom 49.5%(3236/6538)received initial IMV support,and 12.6%(823/6538)were diagnosed with moderate-to-severe BPD *** median duration of initial IMV in the moderateto-severe BPD group was 26(17–41)days,while in the no or mild BPD group,it was 6(3–10)*** incidence rate of moderate-to-severe BPD and the median duration of initial IMV were quite different across different *** logistic regression analysis showed that the onset of moderate-to-severe BPD was significantly associated with the duration of initial IMV[adjusted odds ratio(AOR):1.97;95%confidence interval(CI):1.10–2.67],late-onset neonatal sepsis(LONS),and patent ductus arteriosus(PDA).Conclusion In this multicenter cohort study,the duration of initial IMV was still relatively long in very premature infants,and the longer duration of initial IMV accounts for the increased risk of moderate-to-severe BPD.

关键词： Bronchopulmonary dysplasia Invasive mechanical ventilation Multicenter cohort-Preterm infants Prospective

Study on Supercooling Point and Freezing Point in Floral Organs of Apricot

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Agricultural Sciences in China 2007年第11期6卷 1330-1335页

作者： MENG qing-rui LIANG Yin-quan WANG Wen-feng DU Shao-hua LI yan-hui yanG Jian-min Agricultural University of Hebei Baoding 071001 P.R.China

Under the environment of an artificial climate chamber, supercooling point （SCP） and freezing point （FP） in flower and young fruit at different development stages and freezing injuries of floral organs were studied. The apricot cultivars tested were Kety, Golden Sun and Honghebao. With the development of flower buds, SCP and FP increased, which indicated that their cold resistance decreased. SCP and FP varied with different floral organs. For different apricot cultivars, it was found that, the lower SCP or FP in floral organs was, the more resistant capacity the cultivar had, and the larger the temperature interval from SCP to FP was. SCP was not a constant value, but a range. Frequency distribution of SCP in petals was more dispersing than that in stamens and pistils. Floral organs could maintain a supercooling state to avoid ice formation, but they were sensitive to freezing. Once floral organs froze, thev turned brown after thawing.

关键词： apricot floral organs supercooling point freezing point frost