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小波系数局部特征的自适应图像降噪算法

华侨大学学报（自然科学版） 2010年第6期31卷 636-640页

作者：吕俊白华侨大学计算机科学与技术学院福建泉州362021

在Visu Shrink和基于Bayes准则的Bayes Shrink去噪方法的基础上,提出一种基于小波系数局部特征的自适应图像降噪算法.该算法从含噪图像的HH1子带估算噪声信号的标准差,并据此优化小波分解所需的级数;然后,根据小波系数的局部特征,自适... 详细信息

在Visu Shrink和基于Bayes准则的Bayes Shrink去噪方法的基础上,提出一种基于小波系数局部特征的自适应图像降噪算法.该算法从含噪图像的HH1子带估算噪声信号的标准差,并据此优化小波分解所需的级数;然后,根据小波系数的局部特征,自适应地选择不同子带不同方向上的最佳阈值,运用软阈值函数对图像进行降噪.与传统方法相比,该方法不仅提高图像的峰值信噪比,使图像更清晰,而且具有实现简单、运算速度快的特点.

关键词：图像降噪整数提升小波变换分解级数自适应阈值峰值信噪比

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珍珠球竞赛规则及裁判法探析

北京体育大学学报 2005年第6期28卷 864-864,F003页

作者：田军谊钟琼西南民族大学四川成都610041 成都体育学院四川成都610041

任何体育运动的规则和裁判法都规范和引导着该项运动的发展。珍珠球这一民族传统体育项目的规则和裁判法的不断改进和完善,对该项运动的健康发展起着至关重要的作用。通过实践研究和观摩统计的方法,对珍珠球运动的竞赛规则和裁判法进行... 详细信息

任何体育运动的规则和裁判法都规范和引导着该项运动的发展。珍珠球这一民族传统体育项目的规则和裁判法的不断改进和完善,对该项运动的健康发展起着至关重要的作用。通过实践研究和观摩统计的方法,对珍珠球运动的竞赛规则和裁判法进行了研究,对于裁判的跑位与分工、计分方法、持拍队员参与进攻、比赛的开始等竞赛规则和裁判法提出了改进和完善的意见,使其更符合珍珠球运动的规律,更具观赏性,规范和引导珍珠球运动的健康发展。

关键词：珍珠球竞赛规则裁判法满族民族体育项目

Optimization of GaAs-based 940 nm infrared light emitting diode with dual-junction design(9)

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Optoelectronics Letters 2019年第2期15卷 113-116页

作者： LIN Hong-liang ZENG Xiang-hua SHI Shi-man tian Hai-jun YANG Mo CHU Kai-ming YANG Kai LI Quan-su College of Physics Science and Technology & Institute of Optoelectronic Technology Yangzhou University Yangzhou Change Light Optoelectronic Co. Ltd.

Epitaxial growths of the GaAs/AlGaAs-based 940 nm infrared light emitting diodes(LEDs) with dual junctions were carried out by using metalorganic chemical vapor deposition(MOCVD) with different doping concentrations and Al contents in Al_xGa_(1-x)As *** their optoelectric properties show that the optimal design for tunneling region corresponds to P^(++) layer with hole concentration up to 1×10^(20) cm^(-3), N^(++) layer electron concentration up to 5×10^(19) cm^(-3) and constituent Al_(0.2)Ga_(0.8)As in the tunneling junction *** optimized dual-junction LED has a forward bias of 2.93 V at an injection current of 50 mA, and its output power is 24.5 mW, which is 104% larger than that of the single junction(12 mW).Furthermore, the optimized device keeps the same spectral characteristics without introducing excessive voltage droop.

关键词： Optimization concentrations characteristics

流动注射化学发光传感器测定血清中的氧氟沙星

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陕西师范大学学报（自然科学版） 2008年第5期36卷 48-51页

作者：田炜章竹君陕西师范大学化学与材料科学学院陕西西安710062

在酸性条件下,Ce（Ⅳ）氧化Ru（bipy）3^2＋生成Ru（bipy）3^3＋,同时氧化氧氟沙星生成中间态的自由基,Ru（bipy）3^3＋和中间态自由基接触后能产生强烈的化学发光.利用该反应,将Ru（bipy）3^2＋固定在阳离子交换树脂上,结合流动注射分... 详细信息

在酸性条件下,Ce（Ⅳ）氧化Ru（bipy）3^2＋生成Ru（bipy）3^3＋,同时氧化氧氟沙星生成中间态的自由基,Ru（bipy）3^3＋和中间态自由基接触后能产生强烈的化学发光.利用该反应,将Ru（bipy）3^2＋固定在阳离子交换树脂上,结合流动注射分析技术,建立了一种测定氧氟沙星的流动注射化学发光传感器.结果表明,氧氟沙星浓度在2×10^-7～8×10^-6mol/L（r=0.999 3）范围内与化学发光强度有良好的线性关系,检出限为6×10^-8mol/L（3σ）,对5×10^-6mol/L的氧氟沙星测定的相对标准偏差（RSD）为2.2%（n=11）.该传感器成功地用于血清样品中的氧氟沙星的测定.

关键词：流动注射化学发光传感器固定化氧氟沙星

Moderate Dose of Trolox Preventing the Deleterious Effects of Wi-Fi Radiation on Spermatozoa In vitro through Reduction of Oxidative Stress Damage

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Chinese Medical Journal 2018年第4期131卷 402-412页

作者： Shang-Shu Ding Ping Sun Zhou Zhang Xiang Liu Hong tian Yong-Wei Huo Li-Rong Wang Yah Han jun-Ping Xing Department of Urology School of Medicine The First Affiliated Hospital Xi'an Jiaotong University Xi'an Shaanxi 710061 China Department of Andrology Shaanxi Maternal and Child care Service Centerl Xi'an Shaanxi 710061 China Research Center of Reproduction Medicine School of Medicine Xi'an Jiaotong University Xi'an Shaanxi 710061 China Department of Biochemistry Institute of'Biochemistry and Molecular Medicine School of Medicine Xi'an Jiaotong University Xi'anl Shaanxi 710061 China

Background： The worsening of semen quality, due to the application of Wi-Fi, can be ameliorated by Vitamin E. This study aimed to demonstrate whether a moderate dose of trolox,a new Vitamin E,inhibits oxidative damage on sperms in vitro after exposure to Wi-Fi radiation. Methods： Each of the twenty qualified semen, gathered from june to October 2014 in eugenics clinic, was separated into four aliquots, including sham, Wi-Fi-exposed, Wi-Fi plus 5 mmol/L trolox, and Wi-Fi plus 10 mmol/L trolox groups. At 0 min, all baseline parameters of the 20 samples were measured in sequence. Reactive oxygen species, glutathione, and superoxide dismutase were evaluated in the four aliquots at 45 and 90 min, as were sperm DNA fragments, sperm mitochondrial potential, relative amplification of sperm mitochondrial DNA, sperm vitality, and progressive and immotility sperm. The parameters were analyzed by one-way analysis of variance and Tukey＇s posttest. Results： Among Wi-Fi plus 5 mmol/L trolox, Wi-Fi-exposed and Wi-Fi plus 10 mmol/L trolox groups, reactive oxygen species levels （45 min： 3.80 ± 0.41 RLU·10^-6·ml^-1. 7.50 ± 0.35 RLU·10^-6·ml^-1vs. 6.70 ± 0.47 RLU·10^-6·ml^-1P 〈 0.001; 90 min：5.40 ± 0.21 RLU·10^-6·ml^-1vs. 10.10 ± 0.31 RLU·10^-6·ml^-1. 7.00 ± 0.42 RLU·10^-6·ml^-1P 〈 0.001, respectively）, percentages of tail DNA （45 min： 16.8 ± 2.0% vs. 31.9 ± 2.5% vs. 61.3 ± 1.6%, P 〈 0.001; 90 min： 19.7 ± 1.5% vs. 73.7 ± 1.3% vs. 73.1 ± 1.1%, P 〈 0.001, respectively）, 8-hydroxy-2＇-deoxyguanosine （45 min： 51.89 ± 1.46 pg/ml vs. 104.89 ± 2.19 pg/ml vs. 106.11 ± 1.81 pg/ml , P = 0.012;90 min： 79.96 ± 1.73 pg/ml vs. 141.73 ± 2.90 pg/ml vs. 139.06 ± 2.79 pg/ml; P 〈 0.001）, and percentages of immotility sperm （45 min：27.7 ± 2.7% vs. 41.7 ± 2.2% vs. 41.7 ± 2.5%; 90 min： 29.9 ± 3.3% vs. 58.9 ± 4.0% vs. 63.1 ± 4.0%; all P 〈 0.001） were lowest, and glutathione peroxidase （45 min： 60.50 ± 1.54 U/ml vs. 37.09 ± 1.77 U/ml vs. 28.18 ± 1.06 U/ml; 90 min： 44.61 ± 1.23 U/ml vs. 16.86 ± 0.93 U/ml vs. 29

关键词： Electromagnetic Radiation Oxidative Stress Damage Trolox

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喷雾机器人重喷漏喷问题研究

农机化研究 2006年第12期28卷 63-65页

作者：崔军邱白晶赵军江苏大学江苏省现代农业装备与技术重点实验室江苏镇江212013

喷雾机器人在行走过程中由于两驱动电机的不一致性和地面不平整等因素,会偏离航线产生“跑偏”现象,从而造成重喷和漏喷区域。为了解决这一问题,运用模糊控制方法,在机器人偏离预定行驶轨迹时改变两轮的转速,以实时地控制机器人及时调... 详细信息

喷雾机器人在行走过程中由于两驱动电机的不一致性和地面不平整等因素,会偏离航线产生“跑偏”现象,从而造成重喷和漏喷区域。为了解决这一问题,运用模糊控制方法,在机器人偏离预定行驶轨迹时改变两轮的转速,以实时地控制机器人及时调整和消除“跑偏”现象。仿真结果表明,此方法的效果良好。

关键词：植物保护喷雾移动机器人理论研究模糊控制跑偏

辽河口湿地异养细菌的变化规律及影响因素研究

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中国海洋大学学报（自然科学版） 2011年第7期41卷 113-118页

作者：白洁尹宁宁赵阳国田伟君中国海洋大学环境科学与工程学院山东青岛266100 中国海洋大学海洋环境与生态教育部重点试验室山东青岛266100

通过现场调查和模拟培养实验,对辽河口湿地芦苇生长期内土壤异养细菌的变化规律及其主要影响因素进行了研究。野外现场调查结果表明,异养细菌数量6月份最多,8月份最少;植被长势良好区异养细菌数量比裸滩区高1倍左右。现场培养实验结果表... 详细信息

通过现场调查和模拟培养实验,对辽河口湿地芦苇生长期内土壤异养细菌的变化规律及其主要影响因素进行了研究。野外现场调查结果表明,异养细菌数量6月份最多,8月份最少;植被长势良好区异养细菌数量比裸滩区高1倍左右。现场培养实验结果表明,盐分、C/N、石油、植被对异养细菌数量均有影响,异养细菌数量随盐分增加而减少;C/N比值增加,异养细菌数量明显增多,碳氮比为10∶1时,异养细菌数最大,约为对照组的3倍;石油会显著抑制异养细菌生长,浓度越高,异养细菌数量越少;有植被组的异养细菌数量明显高于无植被组。

关键词：河口湿地异养细菌影响因素

Irinotecan hydrochloride liposome HR070803 in combination with 5-fluorouracil and leucovorin in locally advanced or metastatic pancreatic ductal adenocarcinoma following prior gemcitabine-based therapy (PAN-HEROIC-1): a phase 3 trial

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Signal Transduction and Targeted Therapy 2024年第10期9卷 4628-4636页

作者： Jiujie Cui Shukui Qin Yuhong Zhou Shuang Zhang Xiaofeng Sun Mingjun Zhang Jiuwei Cui Weijia Fang Kangsheng Gu Zhihua Li Jufeng Wang Xiaobing Chen jun Yao jun Zhou Gang Wang Yuxian bai Juxiang Xiao Wensheng Qiu Bangmao Wang Tao Xia Chunyue Wang Li Kong Jiajun Yin Tao Zhang Xionghu Shen Deliang Fu Chuntao Gao Huan Wang Quanren Wang Liwei Wang Oncology Department and State Key Laboratory of Systems Medicine for Cancer of Shanghai Cancer Institute Renji HospitalSchool of MedicineShanghai Jiaotong UniversityShanghaiChina GI Cancer Center Nanjing Tianyinshan HospitalChina Pharmaceutical UniversityNanjingChina Medical Oncology Zhongshan Hospital Affiliated with Fudan UniversityShanghaiChina Department of Biotherapy West China School of Medicine/West China Hospital of Sichuan UniversityChengduChina Internal Medicine Jiangsu Cancer Hospital&Jiangsu Institute of Cancer Research&The Affiliated Cancer Hospital of Nanjing Medical UniversityNanjingChina Medical Oncology The Second Affiliated Hospital of Anhui Medical UniversityHefeiChina Department of Oncology The First Hospital of Jilin UniversityChangchunChina Medical Oncology III The First Affiliated HospitalZhejiang University School of MedicineHangzhouChina Medical Oncology The First Affiliated Hospital of Anhui Medical UniversityHefeiChina Department of Oncology Sun Yat-sen Memorial HospitalSun Yat-sen UniversityGuangzhouChina Department of Oncology The Affiliated Cancer HospitalZhengzhou UniversityZhengzhouChina Department of Oncology The First Affiliated Hospital of Henan University of Science and TechnologyLuoyangChina Department of Gastrointestinal Oncology Peking University Cancer Hospital&InstituteBeijingChina Department of Oncology The First Affiliated Hospital of USTC Anhui Provincial HospitalHefeiChina Department of Oncology Harbin Medical University Cancer HospitalHarbinChina Medical Oncology The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’anChina Department of Oncology The Affiliated Hospital of Qingdao UniversityQingdaoChina Department of Gastroenterology Tianjin Medical University General HospitalTianjinChina Division of Gastrointestinal and Pancreatic Surgery Zhejiang Provincial People’s HospitalHangzhouChina Medical Oncology The First Affiliated Hospital of Xiamen UniversityXiamenChina Department of Oncology Shandong Cancer Hospital a

Liposomal irinotecan has shown promising antitumor activity in patients with advanced or metastatic pancreatic ductal adenocarcinoma (PDAC) who have undergone prior gemcitabine-based therapies. This randomized, double-blind, parallel-controlled, multicenter phase 3 study (NCT05074589) assessed the efficacy and safety of liposomal irinotecan HR070803 combined with 5-fluorouracil (5-FU) and leucovorin (LV) in this patient population. Patients with unresectable, locally advanced, or metastatic PDAC who had previously received gemcitabine-based therapies were randomized 1:1 to receive either HR070803 (60 mg/m^(2) anhydrous irinotecan hydrochloride, equal to 56.5 mg/m^(2) free base) or placebo, both in combination with 5-FU (2000 mg/m^(2)) and LV (200 mg/m^(2)), all given intravenously every two weeks. The primary endpoint of the study was overall survival (OS). A total of 298 patients were enrolled and received HR070803 plus 5-FU/LV (HR070803 group, n = 149) or placebo plus 5-FU/LV (placebo group, n = 149). Median OS was significantly improved in the HR070803 group compared to the placebo group (7.4 months [95% CI 6.1–8.4] versus 5.0 months [95% CI 4.3–6.0];HR 0.63 [95% CI 0.48–0.84];two-sided p = 0.0019). The most common grade ≥ 3 adverse events in the HR070803 group were increased gamma-glutamyltransferase (19.0% versus 11.6% in placebo group) and decreased neutrophil count (12.9% versus 0 in placebo group). No treatment-related deaths occurred in the HR070803 group, while the placebo group reported one treatment-related death (abdominal infection). HR070803 in combination with 5-FU/LV has shown promising efficacy and manageable safety in advanced or metastatic PDAC in the second-line setting, representing a potential option in this patient population.

关键词： metastatic adenocarcinoma sided

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中国制造业二氧化硫排放驱动因素分解研究

华东经济管理 2017年第2期31卷 113-117页

作者：杨冕杨君甜武汉大学经济与管理学院湖北武汉430072 武汉大学人口.资源与环境经济研究中心湖北武汉430072

文章基于LMDI分解分析方法,将我国制造业二氧化硫排放的驱动因素分解为经济规模效应、产业结构效应、技术进步效应、能源结构效应和污染治理效应,并定量考察2002-2014年期间各种因素对其排放量的贡献程度。结果显示:在整个分析期内,规... 详细信息

文章基于LMDI分解分析方法,将我国制造业二氧化硫排放的驱动因素分解为经济规模效应、产业结构效应、技术进步效应、能源结构效应和污染治理效应,并定量考察2002-2014年期间各种因素对其排放量的贡献程度。结果显示:在整个分析期内,规模效应是导致二氧化硫(SO_2)排放量增加的最重要因素;技术进步对SO_2减排的促进作用较为显著;能源结构变动的减排效应存在较大的波动性,其在"十二五"期间逐渐成为促进SO_2减排的主要动力来源;制造业行业结构调整的减排效应微乎其微。此外,环境规制作用所产生的污染治理效应在"十一五"期间逐步增强;但随着工程减排的增长空间日益缩小,其在"十二五"期间逐渐濒于消失。

关键词：二氧化硫排放指数分解分析驱动因素制造业