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图像灰度匹配算法研究

海洋测绘 2008年第6期28卷 18-20页

作者：李建虎郭艳柳武汉大学测绘学院中国南极测绘研究中心湖北武汉430079 极地测绘科学国家测绘局重点实验室湖北武汉430079 武汉大学资源与环境科学学院湖北武汉430079

图像配准是图像处理的基本任务之一,其效果将直接影响到其后续图像处理工作的效果。介绍了一种借助转动惯量计算惯量椭圆以进行遥感灰度图像配准的方法。

关键词：图像配准惯量椭圆遥感图像

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基于Web技术的网络拓扑图生成方法的研究

武汉大学学报（理学版） 2002年第5期48卷 631-634页

作者：赵欣晏蒲柳郭成城邹松武汉大学电子信息学院湖北武汉430072

综合采用提取路由表和地址转发表的方法 ,对网络逻辑拓扑结构和物理拓扑结构进行自动搜索 ,提出了用于优化显示网络拓扑图的一种显示算法 ,采用Java技术实现了基于Web的网络拓扑图 ,并对在实现过程中遇到的问题进行了探讨试验结果表... 详细信息

综合采用提取路由表和地址转发表的方法 ,对网络逻辑拓扑结构和物理拓扑结构进行自动搜索 ,提出了用于优化显示网络拓扑图的一种显示算法 ,采用Java技术实现了基于Web的网络拓扑图 ,并对在实现过程中遇到的问题进行了探讨试验结果表明 ,由此生成的网络拓扑图准确、美观。

关键词： Web技术网络拓扑图生成方法 Java 管理信息库 JDBC Web Start 网络管理网络拓扑结构路由表地转发表

CD/5-FC自杀基因体系对肝、胆、胰肿瘤细胞的杀伤作用及机制

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世界华人消化杂志 2008年第35期16卷 3946-3952页

作者：刘国彦罗琪庄维纯杨素梅魏黎煜厦门大学附属中山医院普外科厦门大学消化疾病研究所福建省厦门市361004

目的:通过CD/5-FC自杀基因体系对肝BEL-7402、胆QBC、胰BXPC-3三系肿瘤细胞杀伤效率的比较,探讨影响这种杀伤差异的可能机制.方法:测定BEL-7402、QBC、BXPC-3三系肿瘤细胞的生长周期及倍增时间.FACS测定阳离子脂质体介导的三系肿瘤细胞... 详细信息

目的:通过CD/5-FC自杀基因体系对肝BEL-7402、胆QBC、胰BXPC-3三系肿瘤细胞杀伤效率的比较,探讨影响这种杀伤差异的可能机制.方法:测定BEL-7402、QBC、BXPC-3三系肿瘤细胞的生长周期及倍增时间.FACS测定阳离子脂质体介导的三系肿瘤细胞瞬时转染效率.MTT法测定阳离子脂质体介导CD/5-FC自杀基因体系对瞬时转染的肝胆胰三系肿瘤细胞体外杀伤效率.观察细胞倍增时间与转染效率与杀伤效率之间的关系.FACS对三系肿瘤细胞瞬时转染自杀基因后凋亡进行比较,并用Hochest33342染色后进行观察.结果:BEL-7402、QBC、BXPC-3的倍增时间分别是34.48、64.94、***细胞同BEL-7402及BXPC-3相比差异有显著性(P<0.05);BEL-7402、QBC、BXPC3三系细胞阳离子脂质体介导的转染率分别为26.99%、2.25%、30.36%.BEL-7402和BXPC-3同QBC细胞有显著差异(P<0.05);瞬时转染自杀基因后抑制效率分别为83.24%,16.97%,92.32%;在CD/5-FC杀伤三系细胞可能的机制-凋亡的研究中,三者凋亡率分别为27.8%,5.49%,36.5%.结论:生长周期短,倍增时间快的细胞系瞬时转染率高,对CD/5-FC自杀基因疗法比较敏感,该自杀基因疗法可能对临床晚期消化系恶性肿瘤是一种很有前景的治疗方法.

关键词：自杀基因五氟胞嘧啶胞嘧啶脱氨酶瞬时转染肝胆管胰腺肿瘤

Imidazolium-based ionic polymers for fast and efficient anion-exchange driven capture of Cr2O72-

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Science China Chemistry 2025年

作者： Yishou Wang Xiaonan Yuan Xingxing Gou Xiatian Song Xiaogang Wang Ling guo yanfeng liu Chengfang Qiao Chunsheng Zhou Yingfeng Han Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources Shaanxi Engineering Research Center for Mineral Resources Clean & Efficient Conversion and New Materials College of Chemical Engineering and Modern Materials Shangluo University Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education Xi'an Key Laboratory of Functional Supramolecular Structure and Materials College of Chemistry and Materials Science Northwest University

The pervasive issue of chromium（VI） contamination,particularly in dichromate (Cr2O2-7),resulting from unchecked industrial growth and inadequate waste management,remains a pressing concern that demands immediate and dedicated ***,we present two novel imidazolium-based ionic polymers （ImIPs）.The ImIPs boast a highly cationic structure rich in bromide（Br-） ions and exhibit remarkable porosity,facilitating the easy exchange of these ions for chromate (Cr2O2-7) through anion *** unique combination leads to exceptional performance,including a high adsorption capacity （423 mg/g）,rapid adsorption rate (75 mg g-1min-1),and a broad operational pH range （2–12）.Moreover,our material demonstrates remarkable reusability,maintaining its efficacy even after 10 cycles without significant loss of *** mechanistic studies underscore the role of ion-exchange chemistry in effectively removing dichromate by the presented ImIPs,providing strong evidence for their suitability as a robust solution to address the ongoing challenges in water *** findings represent a crucial step in developing advanced materials for tackling chromium（VI） pollution.

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Persistent alterations in gray matter in COVID-19 patients experiencing sleep disturbances:a 3-month longitudinal study

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Neural Regeneration Research 2025年第10期20卷 3013-3024页

作者： Kaixuan Zhou Gaoxiong Duan Ying liu Bei Peng Xiaoyan Zhou Lixia Qin Lingyan Liang Yichen Wei Qingping Zhang Xiaocheng Li Haixia Qin Yinqi Lai Yian Lu yan Zhang Jiazhu Huang Jinli Huang Yinfei Ouyang Bolin Bin Mingming Zhao Jun liu Jianrong yang Demao Deng Guangxi Key Laboratory of Special Biomedicine School of MedicineGuangxi UniversityNanningGuangxi Zhuang Autonomous RegionChina Department of Radiology the People’s Hospital of Guangxi Zhuang Autonomous RegionGuangxi Academy of Medical SciencesNanningGuangxi Zhuang Autonomous RegionChina Department of Sleep Medicine the People’s Hospital of Guangxi Zhuang Autonomous RegionNanningGuangxi Zhuang Autonomous RegionChina Department of Radiology The Second Xiangya HospitalCentral South UniversityChangshaHunan ProvinceChina Guangxi Clinical Research Center for Sleep Medicine the People’s Hospital of Guangxi Zhuang Autonomous RegionNanningGuangxi Zhuang Autonomous RegionChina

Sleep disturbances are among the most prevalent neuropsychiatric symptoms in individuals who have recovered from severe acute respiratory syndrome coronavirus 2 *** studies have demonstrated abnormal brain structures in patients with sleep disturbances who have recovered from coronavirus disease 2019(COVID-19).However,neuroimaging studies on sleep disturbances caused by COVID-19 are scarce,and existing studies have primarily focused on the long-term effects of the virus,with minimal acute phase *** a result,little is known about the pathophysiology of sleep disturbances in the acute phase of *** address this issue,we designed a longitudinal study to investigate whether alterations in brain structure occur during the acute phase of infection,and verified the results using 3-month follow-up data.A total of 26 COVID-19 patients with sleep disturbances(aged 51.5±13.57 years,8 women and 18 men),27 COVID-19 patients without sleep disturbances(aged 47.33±15.98 years,9 women and 18 men),and 31 age-and gender-matched healthy controls(aged 49.19±17.51 years,9 women and 22 men)were included in this *** COVID-19 patients with sleep disturbances were included in a longitudinal *** found that COVID-19 patients with sleep disturbances exhibited brain structural changes in almost all brain *** cortical thicknesses of the left pars opercularis and left precuneus were significantly negatively correlated with Pittsburgh Sleep Quality Index ***,we observed changes in the volume of the hippocampus and its subfield regions in COVID-19 patients compared with the healthy *** 3-month follow-up data revealed indices of altered cerebral structure(cortical thickness,cortical grey matter volume,and cortical surface area)in the frontal-parietal cortex compared with the baseline in COVID-19 patients with sleep *** findings indicate that the sleep disturbances patients had altered morphology in the cortical an

关键词： brain structure cortical gray matter volume cortical surface area cortical thickness hippocampus magnetic resonance imaging Pittsburgh Sleep Quality Index severe acute respiratory syndrome coronavirus 2 infections sleep disturbances sub-cortical volume

Chk1表达与急性髓系白血病细胞多药耐药的关系及临床意义

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实用肿瘤杂志 2010年第4期25卷 405-409页

作者：王海燕郭静明刘红艳叶松刘斌唐芳蓉三峡大学第一临床医学院宜昌市中心人民医院血液科湖北宜昌443003

目的通过检测急性髓系白血病(acute myeloid leukemia,AML)患者的骨髓中单个核细胞上细胞周期检测点激酶1(checkpoint kinase 1,Chk1)的表达,探讨Chk1表达水平与急性髓系白血病临床疗效及预后的关系。方法分析48例急性髓系白血病患者,... 详细信息

目的通过检测急性髓系白血病(acute myeloid leukemia,AML)患者的骨髓中单个核细胞上细胞周期检测点激酶1(checkpoint kinase 1,Chk1)的表达,探讨Chk1表达水平与急性髓系白血病临床疗效及预后的关系。方法分析48例急性髓系白血病患者,按临床疗效将其分为完全缓解组和难治耐药组,应用RT-PCR和Western-blot分别检测Chk1 mRNA、蛋白质及磷酸化水平的表达,比较两组间及各组治疗前后Chk1表达水平的差异及其与AML缓解率、复发、无瘤生存期和总生存期的关系。结果 Chk1mRNA及蛋白表达水平在完全缓解组和难治耐药组组间及治疗前后差异无统计学意义(P>0.05);Chk1磷酸化(P-Chk1)水平在难治耐药组治疗前后分别为1.17±1.32、2.27±0.98,完全缓解组为0.81±0.62、1.07±0.96,治疗前两组间P-Chk1水平的表达差异无统计学意义(P>0.05),治疗后,难治耐药组明显高于完全缓解组,差异有统计学意义(P0.05);本研究以治疗后P-Chk1/β-actin的比值≥1.0定为P-Chk1阳性表达,根据此标准,难治耐药组P-Chk1阳性表达率为70.6%,显著高于完全缓解组19.4%(P<0.05)。P-Chk1阳性患者的完全缓解率为37.5%,与P-Chk1阴性患者(78.12%)相比,差异有统计学意义(P<0.05);P-Chk1阳性患者复发率高、无瘤生存期和总生存期均短于阴性患者,差异有统计学意义(P<0.05)。结论 DNA损伤后P-Chk1水平的升高影响了AML细胞对药物的敏感性,P-Chk1阳性表达与AML低解率、高复发率、短的无瘤生存期及总体生存期密切相关,提示Chk1的活化状态参与调控白血病细胞耐药的形成,故推测P-Chk1水平可作为判断急性髓系白血病临床疗效及预后的指标之一。

关键词：白血病,粒细胞,急性/药物疗法白血病,粒细胞,急性/代谢蛋白激酶类抗药性,多药/遗传学预后

Weak feedback self-mixing interference fringe slope discrimination method based on deep learning

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Optoelectronics Letters 2025年

作者： ZHAO yan LIN Maohua DU Shengzhi TONG Jigang liu Bin HAN Fangfang School of Electrical Engineering and Automation， Tianjin University of Technology Tianjin Key Laboratory for Control Theory and Applications in Complicated Systems Department of Electrical Engineering， Tshwane University of Technology

In order to identify the tilt direction of the self-mixing interference (SMI) signals under weak feedback regime interfered by noise， a deep learning method is proposed. The one-dimensional U-Net (1D U-Net) neural network can discriminate the direction of self-mixing fringes accurately and quickly. For experimental SMI signals， the 1D U-Net can be used for discriminant direction after a one-step normalization. Simulation and experimental results show that the proposed method is suitable for SMI signals with noise within the whole weak feedback regime， and can maintain a high discrimination accuracy for signals interfered by 5dB noise. Combined with fringe counting method， accurate and rapid SMI signal displacement reconstruction can be realized.

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糖尿病足中医内治法研究进展

上海中医药杂志 2010年第4期44卷 80-82页

作者：刘艳萍柳国斌张磊闫少庆杨晓上海中医药大学附属曙光医院周围血管病专科上海201203

综述近年来中医内治法治疗糖尿病足的研究进展,为临床提供参考。

关键词：糖尿病足中医药疗法内治综述

Metabolome and RNA-seq reveal discrepant metabolism and secretory metabolism profile in skeletal muscle between obese and lean pigs at different ages

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Science China Life Sciences 2025年

作者： liu guo Junfei Xu Wenyue Zhou Sisi Chen Hanjing Shi Mengmeng Han Zekun yang Yehui Duan Weijun Pang Yulong Yin Fengna Li Laboratory of Animal Nutritional Physiology and Metabolic Process Key Laboratory of Agro-ecological Processes in Subtropical Region Institute of Subtropical Agriculture Chinese Academy of Sciences University of Chinese Academy of Sciences Laboratory of Animal Fat Deposition and Muscle Development College of Animal Science and Technology Northwest A&F University College of Advanced Agricultural Sciences University of Chinese Academy of Sciences

Metabolites and metabolism-related gene expression profiles in skeletal muscle change dramatically under obesity, aging and metabolic disease. Since obese and lean pigs are ideal models for metabolic research. Here, we compared metabolome and transcriptome of Longissimus dorsi(LD) muscle between Taoyuan black(TB, obese) and Duroc(lean) pigs at different ages. We defined the “window phase” of intramuscular fat(IMF) deposition in TB pig, which has significantly higher IMF than Duroc pig. Our results displayed discrepant lipid composition and different expression genes(DEGs) enriched in lipid metabolism, and both metabolome and transcriptome analyses revealed stronger energy expenditure and more active amino acid and protein metabolism in Duroc pig. 10 up-and 51 down-regulated biomarker metabolites with age-and breed-specificity were identified. Potential secretory metabolites, including organic acid(fumaric acid, succinate,malic acid, and gamma-aminobutyric acid), amino acid(L-lysine, and L-glutamic acid), lipid(2-hydroxyisovaleric acid, and L-carnitine) were demonstrated a significant correlation with IMF deposition. Our research highlights the huge difference of metabolic spectrum in skeletal muscle between obese and lean model and muscle-derived secretory metabolites might act as an ambassador of intercellular communication to regulate systematic metabolism.

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