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基于细粒度任务分配的空时自适应并行处理算法研究

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电子与信息学报 2012年第6期34卷 1398-1403页

作者：王超刘伟袁培苑北京理工大学信息与电子学院北京100081

对于空时自适应信号处理(Space-Time Adaptive Processing,STAP)算法的并行处理问题,传统方法以粗粒度的划分方式将STAP算法分配到特定硬件系统中的不同处理器中,利用处理器间的流水计算来提高系统计算吞吐量。该文分析了传统并行处理... 详细信息

对于空时自适应信号处理(Space-Time Adaptive Processing,STAP)算法的并行处理问题,传统方法以粗粒度的划分方式将STAP算法分配到特定硬件系统中的不同处理器中,利用处理器间的流水计算来提高系统计算吞吐量。该文分析了传统并行处理方法的缺陷:粗粒度的任务划分方式牺牲了STAP算法的并行度;传统处理方法仅能适用于特定的系统环境。针对上述情况,该文提出一种基于细粒度任务分配的STAP并行处理方法,该方法分为以下3个步骤:构建细粒度的DAG(Direct Acyclic Graph)形式的STAP算法任务模型;使用统一拓扑结构模型描述不同结构的目标硬件系统;基于细粒度任务分配算法将任务模型分配到拓扑结构模型中的处理器实现并行计算。实验结果表明该并行处理方法能够达到良好的加速比,并且对于不同的STAP应用系统具有很好的适应性。

关键词：信号处理空时自适应系统并行处理任务分配细粒度

The Influence of Fluctuated Soil Moisture on Growth Dynamic of Winter Wheat

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Agricultural Sciences in China 2002年第1期1卷 56-63页

作者： CHEN Xiao-yuan and LUO yuan-pei( Institute of Resources and Environments, China Agricultural University, Beijing 100094 Agrometeorology Institute, Chinese Academy of Agricultural Sciences, Beijing 100081 ) Institute of Resources and Environments China Agricultural University Beijing 100094 Agrometeorology Institute Chinese Academy of Agricultural Sciences Beijing 100081

Glasshouse and laboratory tests were carried out in 1996 - 1998 using winter wheat cultivars Beinong 6 as materials. The growth dynamics of the whole-wheat plant were analysed under constant and fluctuated soil water condition. The results revealed that water stress made the starting time of crop greatest growth phase(STCGGP) in advance, prolonged crop greatest growth phase(CGGP), decreased the rate of crop greatest growth (CGGR or CGRm), and as a result, the rate of dry matter accumulation was reduced and the growth of the crop was slowed down. Rewatering delayed STCGGP, shortened CGGP, increased CGGR, thus, the rate of dry matter accumulation had been boosted and the growth of the crop was accelerated. The growth rate, dry matter weight and grains yield of winter wheat were almost equal to the well-watered controls if they were rewatered under the condition of moderate water stress during the jointing stage.

关键词： Winter wheat Soil moisture Growth dynamics

Risk factors for acute kidney injury in patients with acute myocardial infarction

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Chinese Medical Journal 2019年第14期132卷 1660-1665页

作者： Cong Wang yuan-yuan pei Yun-Hui Ma Xiao-Lu Ma Zhi-Wei Liu Ji-Hong Zhu Chun-Sheng Li Emergency Department Beijing Chao-Yang HospitalCapital Medical UniversityBeijing 100020China Emergency Department Peking University People's HospitalBeijing 100044China Emergency Department Beijing Jishuitan HospitalBeijing 100035China

Background:Acute kidney injury (AKI) is a serious and fatal complication of acute myocardial infarction (AMI).It has high shortand long-term mortality rates and a poor prognosis but is potentially ***,the current incidence,risk factors,and outcomes of AKI in the Chinese population are not well understood and would serve the first step to identify high-risk patients who could receive preventative ***:The medical data of 1124 hospitalized patients diagnosed with AMI from October 2013 to September 2015 were *** was defined according to the 2012 Kidney Disease Improving Global Outcomes *** the patients were divided into either the AKI group or the non-AKI group.A univariate comparison analysis was performed to identify possible risk factors associated with AKI.A multiple logistic regression analysis was used to identify the independent risk factors for AKI in patients with ***:Overall,the incidence of AKI was 26.0%.The mortality rate of the AKI group was 20.5 %,and the mortality rate of the nonAKI group was 0.6%(P 60 years old)(odds ratio [OR] 1.04,95% confidence interval [CI] 1.02-1.05,P =0.000),hypertension (OR 2.51,95% CI 1.62-3.87,P =0.000),chronic kidney disease (OR 3.52,95% CI 2.01-6.16,P =0.000),Killip class ≥3 (OR 5.22,95% CI 3.07-8.87,P =0.000),extensive anterior myocardial infarction (OR 3.02,95% CI 1.85--4.93,P =0.000),use of furosemide (OR 1.02,95% CI 1.02-1.03,P =0.000),non-use of angiotensin-converting enzyme inhibitors/angiotensin receptor blocker (OR 1.58,95% CI 1.04-2.40,P =0.032).These factors provided an accurate tool to identify patients at high risk of developing ***:Approximately 26.0% of patients undergoing AMI developed AKI,and the development of AKI was strongly correlated with in-hospital *** risk factors for AKI in patients with AMI were determined to

关键词： Acute myocardial infarction Acute kidney injury Risk factor

Altered nuclear factor-kappaB inducing kinase expression in insulin-resistant mice

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Chinese Medical Journal 2011年第22期124卷 3646-3651页

作者： SU Lei XIU Ling-ling WEI Guo-hong ZHONG Xing LIU yuan-yuan CAO Xiao-pei LI Yan-bing XIAO Hai-peng Department of Endocrinology First Affiliated Hospital of Sun Yat-sen University Guangzhou Guangdong 510080 China

Background Insulin resistance is an underlying feature of both type 2 diabetes and metabolic syndrome. Currently, it is unclear whether nuclear factor （NF）-KB inducing kinase （NIK） plays a role in the development of insulin resistance. The present in vivo study investigated the roles of NIK and IKB kinase a （IKKa） in obesity-induced insulin resistance using animal models. Methods NIK expression was evaluated by Western blotting in male Lepob mice and C57BL/6J mice fed a high-fat diet （HFD）（45% fat）. After metformin and sulfasalazine treatment, NIK expression was investigated during the improvement of insulin resistance. Results NIK was increased by about 1-fold in the renal tissues of Lepab mice and C57BL/6J mice fed a HFD for 12 weeks. After 1 and 3 weeks of high-fat feeding, we observed an almost 50% decrease in NIK and IKKa expression in the liver and renal tissues of C57BL/6J mice. NIK expression was significantly lower in the liver and renal tissues of HFD-fed mice that were treated with insulin sensitizers, metformin and sulfasalazine. However, IKKa expression was increased after metformin treatment in both tissues. Conclusion These results suggest a possible role of NIK in the liver and renal tissues of insulin-resistant mice.

关键词： nuclearfactor-KB inducing kinase IKbB kinase a renal tissue," liver tissue," insulin resistance

Specific convulsions and brain damage in children hospitalized for Omicron BA.5 infection:an observational study using two cohorts

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World Journal of Pediatrics 2024年第10期20卷 1079-1089页

作者： yuan-yuan pei Hong-Li Wang Gen-Quan Yin Yi Xu Jian-Hao Tan Xin-Hua Liang Hui-Ying Wu Xun-Tao Yin Chun-Xiao Fang Jun-Zheng Peng Zhi-yuan Wu Yi Sun Run Dang Yu-Feng Liang Hong-Mei Tang You-Yi Li Zhong-Xiang Qiao Zhi-Cheng Liang Jian-Ping Tang Fan-Sen Zeng Ke-Lu Zheng Yi-Ru Zeng Xiao-Jun Cao Hui-Min Xia Jian-Rui Wei Jin-Ling Tang Si-Tang Gong Clinical Data Center Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhou 510623China Department of Gastroenterology Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhou 510623China Department of Internal Medicine Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhou 510623China Department of Infectious Diseases Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhou 510623China Information Department Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhou 510623China School of Pediatrics Guangzhou Medical UniversityGuangzhou 510623China Imaging Department Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhou 510623China Respiratory Department Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhou 510623China Pediatric Intensive Care Unit Guangzhou Women and Children’s Medical CenterGuangzhou Medical UniversityGuangzhou510623China Neonatal Intensive Care Unit Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhou 510623China Rehabilitation Department Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhou 510623China General Pediatrics Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhou510623China Emergency Department Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhou 510623China Department of Neurology Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhou 510623China Key Laboratory of Structural Birth Defects Research in Guangdong Province Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhou 510623China Cardiovascular Department Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhou 510623China Shenzhen Institute of Advanced Technology Chinese Academy of SciencesShen

Background SARS-CoV-2 continues to mutate over time,and reports on children infected with Omicron BA.5 are *** aimed to analyze the specific symptoms of Omicron-infected children and to improve patient *** We selected 315 consecutively hospitalized children with Omicron BA.5 and 16,744 non-Omicron-infected febrile children visiting the fever clinic at our hospital between December 8 and 30,*** convulsions and body temperatures were compared between the two *** analyzed potential associations between convulsions and vaccination,and additionally evaluated the brain damage among severe Omicron-infected *** Convulsion rates(97.5%vs.4.3%,P<0.001)and frequencies(median:2.0 vs.1.6,P<0.001)significantly differed between Omicron-infected and non-Omicron-infected febrile *** body temperatures of Omicron-infected children were significantly higher during convulsions than when they were not convulsing and those of non-Omicron-infected febrile children during convulsions(median:39.5 vs.38.2 and 38.6℃,both P<0.001).In the three Omicron-subgroups,the temperature during convulsions was proportional to the percentage of patients and significantly differed(P<0.001),while not in the three non-Omicron-subgroups(P=0.244).The convulsion frequency was lower in the 55 vaccinated children compared to the 260 non-vaccinated children(average:1.8 vs.2.1,P<0.001).The vaccination dose and convulsion frequency in Omicron-infected children were significantly correlated(P<0.001).Fifteen of the 112 severe Omicron cases had brain *** Omicron-infected children experience higher body temperatures and frequencies during convulsions than those of non-Omicron-infected febrile *** additionally found evidence of brain damage caused by infection with omicron *** and prompt fever reduction may relieve symptoms.

关键词： Body temperature Brain damage:Children:Convulsion Omicron BA.5.Vaccination

电诱导自修复纳米复合水凝胶的制备及性能研究

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高分子学报 2019年第9期50卷 932-938,I0003页

作者：吴柏燊叶远超李震刘致远裴媛媛陈传瑞秦海利刘欢欢合肥工业大学化学与化工学院合肥230009 安徽中医药大学药学院合肥230012

采用表面修饰N,N-双丙烯酰胱胺(BACA)的金纳米颗粒(Au NP)为多功能交联剂,聚邻苯二胺纳米带(PoPd nanobelt)为导电掺杂剂,N-异丙基丙烯酰胺(NIPAm)为可聚合单体,在热引发剂和催化剂存在下,发生自由基聚合反应,成功合成导电性纳米复合水... 详细信息

采用表面修饰N,N-双丙烯酰胱胺(BACA)的金纳米颗粒(Au NP)为多功能交联剂,聚邻苯二胺纳米带(PoPd nanobelt)为导电掺杂剂,N-异丙基丙烯酰胺(NIPAm)为可聚合单体,在热引发剂和催化剂存在下,发生自由基聚合反应,成功合成导电性纳米复合水凝胶.采用扫描电子显微镜、透射电子显微镜及元素成像技术、紫外可见吸收光谱仪、直流四探针等对PoPd nanobelt和Au@BACA表征结果表明:PoPd nanobelt长度约100μm,直径约200 nm;对PoPd nanobelt进行化学掺杂,其导电率可增加至5.5 S/m;Au NP直径约15 nm,且成功与BACA分子发生复合.采用扫描电子显微镜及元素成像技术、透射电子显微镜、万能试验机、红外热成像仪、显微镜等对水凝胶样品表征结果表明:凝胶呈现均匀、致密的聚合物网络;Au NPs均匀分散在聚合物网络中;凝胶导电率高达1.47 S/m;凝胶拉伸应变高达2400%,断裂强度高达1.2 MPa;修复电流强度为0.05 A,通电时间15 min时,自修复效率接近90%.可快速、高效电诱导自修复性的高强度纳米复合水凝胶对发展智能、柔性可穿戴电子器件具有重要意义.

关键词：金-硫配位作用自修复电诱导纳米复合水凝胶

论“坚持人民至上”历史经验的核心要义、深厚意蕴及现实路径

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长江师范学院学报 2022年第6期38卷 15-20页

作者：袁佩媛西南大学马克思主义学院重庆400715

党的十九届六中全会将“坚持人民至上”总结为党在百年奋斗诗篇中的宝贵历史经验,彰显了中国共产党人无论处于何种环境、面临何种危险和挑战,都始终赋予人民至高无上的地位,以确保人民生命至上、人民利益至上及人民幸福至上的价值追求... 详细信息

党的十九届六中全会将“坚持人民至上”总结为党在百年奋斗诗篇中的宝贵历史经验,彰显了中国共产党人无论处于何种环境、面临何种危险和挑战,都始终赋予人民至高无上的地位,以确保人民生命至上、人民利益至上及人民幸福至上的价值追求。“坚持人民至上”历史经验既是马克思主义唯物史观的传承发展,亦是中国共产党性质和宗旨的凝练表达,生动呈现出中国特色社会主义的制度优势。为确保“坚持人民至上”历史经验的有效落实,需要中国共产党坚持三个始终:始终尊重人民群众的历史主体地位;始终坚持在发展中保障和改善民生;始终不断满足人民的美好生活需要,进而不断提升人民生活水平,增进人民福祉。

关键词：党的十九届六中全会坚持人民至上核心要义

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体验·内化·传播:“数字青年”赓续红色血脉的实践理路

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华侨大学学报（哲学社会科学版） 2024年第4期 134-143页

作者：靳玉军袁佩媛西南大学马克思主义学院重庆400715

新时代新征程,用好红色资源、赓续红色血脉、传承红色文化是贯彻落实习近平文化思想、建设文化强国的重要内容。“数字青年”作为与数字时代同生共长的青年一代,是在数字实践中赓续红色血脉的核心群体。在数字媒介的赋能下,为实现“数... 详细信息

新时代新征程,用好红色资源、赓续红色血脉、传承红色文化是贯彻落实习近平文化思想、建设文化强国的重要内容。“数字青年”作为与数字时代同生共长的青年一代,是在数字实践中赓续红色血脉的核心群体。在数字媒介的赋能下,为实现“数字青年”与红色血脉的跨界融合和双向赋能,“数字青年”需遵循“内化于心,外化于行”的规律,秉承“体验·内化·传播”三位一体的动态致思理路,在沉浸式体验中感知红色文化、在潜隐性内化中传承红色基因、在数字化传播中彰显红色力量,从红色血脉“要我赓续—我要赓续—我能赓续”的逻辑进路中积极展现自身勇担新的文化使命的自觉性、主体性与创新性。

关键词： “数字青年” 红色血脉红色基因红色文化传播

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荔枝保鲜包装技术研究进展

包装工程 2016年第15期37卷 95-101页

作者：蒋侬辉刘伟袁沛元邱燕萍向旭广东省农业科学院果树研究所广州510640 农业部南亚热带果树生物技术与遗传资源利用重点实验室广州510640 广东省热带亚热带果树研究重点实验室广州510640

目的开发更为有效的荔枝保鲜包装方法,为荔枝保鲜及其包装发展提供参考依据。方法对荔枝的生理特性与外形特征进行分析,综述荔枝对包装的要求、荔枝的流通包装方式、荔枝的包装材料种类及荔枝新型功能性保鲜包装的开发应用现状。结果对... 详细信息

目的开发更为有效的荔枝保鲜包装方法,为荔枝保鲜及其包装发展提供参考依据。方法对荔枝的生理特性与外形特征进行分析,综述荔枝对包装的要求、荔枝的流通包装方式、荔枝的包装材料种类及荔枝新型功能性保鲜包装的开发应用现状。结果对荔枝保鲜包装技术的研究方向提出了建议。结论尽管荔枝的包装技术取得了较快的发展,但各种方法均有不同程度的缺陷,因此还需要进一步加大力度开发新型无公害、功能性保鲜包装技术。

关键词：荔枝包装物流保鲜