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Macroblock-level decoding and deblocking method and its pipeline implementation in H.264 decoder SOC design

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第1期8卷 36-41页

作者： wang shu-hui LIN Tao LIN Zheng-hui Department of Electronic Engineering Shanghai Jiao Tong University Shanghai 200030 China

This paper presents a macroblock-level (MB-level) decoding and deblocking method for supporting the flexible macroblock ordering (FMO) and arbitrary slice ordering (ASO) bit streams in H.264 decoder and its SOC/ASIC implementation. By searching the slice containing the current macroblock in the bit stream and switching slices correctly, MBs can be decoded in the raster scan order, while the decoding process can immediately begin as long as the slice containing the current MB is available. This architectural modification enables the MB-level decoding and deblocking 3-stage pipeline, and saves about 20% of SDRAM bandwidth. Implementation results showed that the design achieves real-time decoding of 1080HD (1920×1088@30 fps) at a system clock of 166 MHz.

关键词： Flexible macroblock ordering (FMO) Arbitrary slice ordering (ASO) System-on-chip (SOC) Raster scan order Pipeline

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烟台市板栗产业发展中存在的问题及对策

北方果树 2024年第4期 40-42页

作者：王淑惠曹国玉烟台市森林资源监测保护服务中心山东烟台264000

通过对烟台市板栗生产现状的实地调研,了解板栗产业的发展趋势和存在的问题(包括品种混杂、管理粗放、产品附加值低、科技支撑力度不够等),并在此基础上从优良新品种培育、完善种植体系、培育壮大龙头企业、加大科研创新力度等方面提出... 详细信息

通过对烟台市板栗生产现状的实地调研,了解板栗产业的发展趋势和存在的问题(包括品种混杂、管理粗放、产品附加值低、科技支撑力度不够等),并在此基础上从优良新品种培育、完善种植体系、培育壮大龙头企业、加大科研创新力度等方面提出发展的建议,为新时期烟台市板栗产业的持续健康发展提供重要参考。

关键词：板栗产业发展问题对策

寿胎丸对复发性流产小鼠蜕膜组织有氧糖酵解抑制的影响

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中国中西医结合杂志 2024年第1期44卷 56-62页

作者：王淑慧张丽郝延芝蒋敏吕竞芳张玉倩于志芳刘孟瑞杜惠兰河北中医药大学中西医结合学院石家庄050200 河北省中西医结合生殖疾病协同创新中心石家庄050091 河北省中西医结合肝肾病证重点实验室石家庄050091

目的观察寿胎丸防治复发性流产(RSA)的作用,探讨其调控有氧糖酵解的作用。方法将40只CBA/J小鼠随机分为正常组、RSA组、地屈孕酮组和寿胎丸组,每组10只,分别灌胃蒸馏水、地屈孕酮溶解剂、寿胎丸14天。14天后将正常组CBA/J雌鼠与BALB/c雄... 详细信息

目的观察寿胎丸防治复发性流产(RSA)的作用,探讨其调控有氧糖酵解的作用。方法将40只CBA/J小鼠随机分为正常组、RSA组、地屈孕酮组和寿胎丸组,每组10只,分别灌胃蒸馏水、地屈孕酮溶解剂、寿胎丸14天。14天后将正常组CBA/J雌鼠与BALB/c雄鼠2∶1合笼,其余3组雌鼠与DBA/2雄鼠2∶1合笼,建立RSA模型,并按照前法继续灌胃至见栓第10天。计算各组小鼠胚胎丢失率,HE染色观察蜕膜组织,Western Blot、实时荧光定量PCR技术(qRT-PCR)检测小鼠蜕膜组织己糖激酶(HK)2、M2型丙酮酸激酶(PKM2)、乳酸脱氢酶(LDH)A、B淋巴细胞瘤-2(Bcl-2)、B细胞淋巴瘤-2相关X蛋白(Bax)、半胱氨酸天冬氨酸蛋白酶3(Caspase-3)表达,乳酸脱氢酶比色法检测乳酸(LA)含量,检测HK、PK、LDH活性。结果与正常组比较,RSA组小鼠胚胎丢失率升高(P<0.05),蜕膜组织细胞减少,排列疏松,胞浆空泡样变,部分细胞核消失,蜕膜组织HK2、PKM2、LDHA、Bcl-2蛋白及mRNA表达降低(P<0.05),Bax、Caspase-3蛋白及mRNA表达增高(P<0.05);HK、PK、LDH活性降低(P<0.05),LA含量降低(P<0.01)。与RSA组比较,地屈孕酮组、寿胎丸组小鼠胚胎丢失率降低(P<0.05),蜕膜组织细胞排列较致密,少数蜕膜细胞胞浆水肿、空泡样变,胞质较丰富,小鼠蜕膜组织HK2、PKM2、LDHA、Bcl-2蛋白及mRNA表达升高(P<0.05),Bax、Caspase-3蛋白及mRNA表达降低(P<0.01);HK、PK、LDH活性升高(P<0.05),LA含量升高(P<0.01)。结论寿胎丸可通过调节蜕膜组织有氧糖酵解水平,提高LA含量,减少蜕膜细胞凋亡,从而降低胚胎丢失率,起到防治RSA的作用。

关键词：寿胎丸有氧糖酵解蜕膜复发性流产乳酸凋亡中药复方

两种方法治疗学龄期儿童股骨下段不稳定型骨折的疗效比较

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临床骨科杂志 2024年第1期27卷 92-96页

作者：张远鉴王意菊尹同珍王树辉河北省沧州中西医结合医院小儿骨科、骨肿瘤科河北沧州061000 河北省沧州中西医结合医院骨科河北沧州061000

目的比较股骨远端90°锁定钢板与弹性髓内钉治疗学龄期儿童股骨下段不稳定型骨折的疗效。方法采用随机数字表法将75例学龄期股骨下段不稳定型骨折患儿分成观察组(采用股骨远端90°锁定钢板治疗,38例)与对照组(采用闭合或切开复位弹性髓... 详细信息

目的比较股骨远端90°锁定钢板与弹性髓内钉治疗学龄期儿童股骨下段不稳定型骨折的疗效。方法采用随机数字表法将75例学龄期股骨下段不稳定型骨折患儿分成观察组(采用股骨远端90°锁定钢板治疗,38例)与对照组(采用闭合或切开复位弹性髓内钉治疗,37例)。记录手术情况、骨折复位及愈合情况、术后再移位发生率。采用HSS评分评价膝关节功能。结果患儿均获得随访,时间6~24个月。术中出血量、术中透视次数观察组均少于对照组(P<0.05)。术后3 d X线片显示两组骨折均复位良好。两组骨折愈合时间2.5~5个月。末次随访时,HSS评分优良率观察组高于对照组(P<0.05)。术后再移位发生率观察组低于对照组(P<0.05)。结论与弹性髓内钉相比,股骨远端90°锁定钢板治疗学龄期儿童股骨下段不稳定型骨折,术中出血量、透视次数更少,术后骨折再移位率更低,疗效更好。

关键词：股骨远端90°锁定钢板弹性髓内钉股骨下段骨折儿童

Machine Learning-based Identification of Contaminated Images in Light Curve Data Preprocessing

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Research in Astronomy and Astrophysics 2024年第4期24卷 287-295页

作者： hui Li Rong-wang Li Peng shu Yu-Qiang Li Yunnan Observatories Chinese Academy of SciencesKunming 650216China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Space Object and Debris Observation Chinese Academy of SciencesNanjing 210023China

Attitude is one of the crucial parameters for space objects and plays a vital role in collision prediction and debris *** light curves to determine attitude is the most commonly used *** photometric observations,outliers may exist in the obtained light curves due to various ***,preprocessing is required to remove these outliers to obtain high quality light *** statistical analysis,the reasons leading to outliers can be categorized into two main types:first,the brightness of the object significantly increases due to the passage of a star nearby,referred to as“stellar contamination,”and second,the brightness markedly decreases due to cloudy cover,referred to as“cloudy contamination.”The traditional approach of manually inspecting images for contamination is time-consuming and ***,we propose the utilization of machine learning methods as a *** Neural Networks and SVMs are employed to identify cases of stellar contamination and cloudy contamination,achieving F1 scores of 1.00 and 0.98 on a test set,*** also explore other machine learning methods such as ResNet-18 and Light Gradient Boosting Machine,then conduct comparative analyses of the results.

关键词： techniques:image processing methods:data analysis light pollution

Progress in the research on organic piezoelectric catalysts for dye decomposition

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International Journal of Minerals,Metallurgy and Materials 2024年第2期31卷 245-260页

作者： Zhaoning Yang Xiaoxin shu Di Guo Jing wang hui Bian Yanmin Jia School of Science Xi’an University of Posts and TelecommunicationsXi’an 710121China School of Physics and Information Technology Shaanxi Normal UniversityXi’an 710119China

Organic contaminants have posed a direct and substantial risk to human wellness and the *** recent years,piezo-electric catalysis has evolved as a novel and effective method for decomposing these *** piezoelectric materials offer a wide range of options,most related studies thus far have focused on inorganic materials and have paid little attention to organic *** materials have advantages,such as being lightweight,inexpensive,and easy to process,over inorganic ***,this paper provides a comprehensive review of the progress made in the research on piezoelectric catalysis using organic materials,high-lighting their catalytic efficiency in addressing various *** addition,the applications of organic materials in piezoelectric cata-lysis for water decomposition to produce hydrogen,disinfect bacteria,treat tumors,and reduce carbon dioxide are ***,fu-ture developmental trends regarding the piezoelectric catalytic potential of organic materials are explored.

关键词： piezoelectric catalysis piezoelectric material dye decomposition organic materials

Highly Red Emissive Conjugated Homopolymers Based on Double B←N Bridged Bipyridine Unit

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Chinese Journal of Polymer Science 2024年第8期42卷 1029-1037页

作者： Yu-Yue Gao Kai-Yuan Zhang shu-Meng wang hui Tong Jun Liu State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China School of Applied Chemistry and Engineering University of Science and Technology of ChinaHefei 230026China

Conjugated homopolymers based on six-member rings,e.g.,polyfluorene,always exhibit blue emission and conjugated homopolymers based on five-member rings,e.g.,polythiophene,can give red emission with low *** this work,we report a series of new conjugated homopolymers based on six-member rings with high-efficiency deep-red *** repeating units of the red light emitting homopolymers are double B←N bridged bipyridine(BNBP)with the boron atoms functionalized with diphenyl,borafluorene,and 2,7-di-tert-butyl-borafluorene groups,*** relationship between the chemical structures and the opto-electronic properties of the monomers and the homopolymers has been systematically *** three polymers emit pure red light(λ_(max)=656 nm)or deep red light(λ_(max)=693 nm)with fluorescence quantum efficiency in solution higher than 60%.The polymers can be used as the emitters in solution-processed organic light-emitting diodes with red emission and decent device *** work indicates a new strategy to design highly efficient light emitting conjugated polymers.

关键词： Conjugated homopolymers Double B←N bridged bipyridine(BNBP) Deep-red emission High fluorescent efficiency

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高原官兵脑力疲劳的现状特点及影响因素分析

中国疗养医学 2024年第3期33卷 12-15页

作者：董念秦玲莉高秋平岳晓萱王晶王曙晖周波战略支援部队兴城特勤疗养中心辽宁葫芦岛125100

目的研究高原官兵脑力疲劳的现状及其主要的影响因素,为做好个性化疗养服务保障提供参考依据。方法对2021年12月至2022年11月来某中心参与疗养的196名高原官兵,采用中文版多维疲劳量表(MFI-20)、匹兹堡睡眠质量指数量表(PSQI)、简明心... 详细信息

目的研究高原官兵脑力疲劳的现状及其主要的影响因素,为做好个性化疗养服务保障提供参考依据。方法对2021年12月至2022年11月来某中心参与疗养的196名高原官兵,采用中文版多维疲劳量表(MFI-20)、匹兹堡睡眠质量指数量表(PSQI)、简明心境量表(BPOMS)进行调查并对数据进行统计分析。结果高原官兵中脑力疲劳的检出率为32.65%,脑力疲劳和疲劳总分中军官高于战士、城镇高于农村、非独生子女高于独生子女、高学历高于低学历、已婚高于未婚,差异均无统计学意义(P>0.05);脑力疲劳评分与岗位年限、PSQI总分、情绪状态总分(TMD)呈显著正相关(P<0.01),岗位年限(B=0.087,P=0.025)、睡眠质量(B=0.244,P=0.001)与情绪状态(B=0.042,P=0.002)是脑力疲劳的主要影响因素。结论高原官兵中脑力疲劳的现象普遍存在,其影响因素与其他军种官兵相比具有其自身的特点,可以通过改善睡眠,调整情绪状态达到有效预防、改善脑力疲劳的目的。

关键词：高原官兵脑力疲劳睡眠质量情绪

Augmenter of liver regeneration promotes hepatocyte proliferation induced by Kupffer cells

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World Journal of Gastroenterology 2006年第30期12卷 4859-4865页

作者： Chun-Ping wang Lin Zhou shu-hui Su Yan Chen Yin-Ying Lu Fei wang Hong-Jun Jia Yong-Yi Feng Yong-Ping Yang Department of Gastroenterology 302 Hospital of Chinese PLA Beijing 100039 China

AIM： To observe the effects of augmenter of liver regeneration （ALR） on Kupffer cells and to determine whether ALR promotes hepatocyte proliferation induced by Kupffer cells. METHODS： Kupffer cells and hepatocytes were cultured in vitro and various concentrations of recombinant rat ALR （rrALR） were added. ^3H-thymidine, BrdU and ^3H-leucine incorporation was determined in cultured Kupffer cells and hepatocytes, in hepatocytes conditioned by Kupffer cells, and in associated medium, rrALR was labeled by iodination and used to determine its binding activity by Scatchard analysis in Kupffer cells and primarily cultured rat hepatocytes. RESULTS： rrALR stimulated DNA replication in Kupffer cells and protein synthesis both in cells and in medium in a non-concentration-dependent manner. The effect was significant at the concentration of 1μg/L ALR. However, rrALR had no effect on primarily cultured hepatocytes, when hepatocytes were cultured with the Kupffer cell medium conditioned by ALR, DNA replication and protein synthesis in hepatocytes increased significantly at the concentration of 1μg/L ALR. When the ALR concentration was increased, its effect on hepatocyte proliferation decreased to the basal level. Scatchard analysis indicated the presence of a single class of high affinity receptors with a dissociation constant （Kd） of 0.883 nmol/L and a maximum binding capacity （Bmax） of 126.1 pmol/g protein in the rat Kupffer cells. CONCLUSION： ALR can promote hepatocyte proliferation induced by Kupffer cells, which is associated with the concentration of ALR, suggesting that Kupffer cells play a dual role in liver regeneration.

关键词： Liver regeneration Augmenter of liver regeneration Kupffer cell