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Predictive cruise control for heavy trucks based on slope information under cloud control system

Journal of Systems Engineering and Electronics 2022年第4期33卷 812-826页

作者： li shuyan WAN Keke GAO Bolin li Rui WANG Yue li Keqiang College of Engineering China Agricultural UniversityBeijing 100083China School of Vehicle and Mobility Tsinghua UniversityBeijing 100084China

With the advantage of fast calculation and map resources on cloud control system(CCS), cloud-based predictive cruise control(CPCC) for heavy trucks has great potential to improve energy efficiency, which is significant to achieve the goal of national carbon neutrality. However, most investigations focus on the on-board predictive cruise control(PCC) system,lack of research on CPCC architecture under CCS. Besides, the current PCC algorithms have the problems of a single control target and high computational complexity, which hinders the improvement of the control effect. In this paper, a layered architecture based on CCS is proposed to effectively address the realtime computing of CPCC system and the deployment of its algorithm on vehicle-cloud. In addition, based on the dynamic programming principle and the proposed road point segmentation method(RPSM), a PCC algorithm is designed to optimize the speed and gear of heavy trucks with slope information. Simulation results show that the CPCC system can adaptively control vehicle driving through the slope prediction, with fuel-saving rate of 6.17% in comparison with the constant cruise control. Also,compared with other similar algorithms, the PCC algorithm can make the engine operate more in the efficient zone by cooperatively optimizing the gear and speed. Moreover, the RPSM algorithm can reconfigure the road in advance, with a 91% roadpoint reduction rate, significantly reducing algorithm ***, this study has essential research significance for the economic driving of heavy trucks and the promotion of the CPCC system.

关键词： predictive cruise control(PCC) cloud control system(CCS) layered architecture road point segmentation method(RPSM) economic driving

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Root Endophyte Shift and Key Genera Discovery in Rice under Barnyardgrass Stress

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Rice science 2023年第2期30卷 160-170,I0040-I0048页

作者： li shuyan YAN Qiling WANG Jieyu JIANG Huidan li Zuren PENG Qiong Long Ping Branch Graduate School of Hunan UniversityChangsha 410125China Hunan Agricultural Biotechnology Research Institute Hunan Academy of Agricultural SciencesChangsha 410125China

Despite increasing knowledge of barnyardgrass(Echinochloa crus-galli) interference with rice, relatively little is known how endophytes improve the ability of rice against barnyardgrass stress. Here, we provided a detailed temporal characterization of rice root-associated microbiomes during co-cultivation with barnyardgrass and a comparison with the microbiomes of weed-free rice plants. Alpha diversity analysis indicated that barnyardgrass had the opposite effects on endophytic bacteria and fungi in rice roots, in terms of the community diversity, richness and coverage at the rice seedling stage. Principal coordinate analysis showed that barnyardgrass had only a minor effect on the community composition of endophytes in rice roots at the rice seedling stage, but showed a significant and maximum interference at the heading stage. Rice recruited many endophytes to resist biotic stress from barnyardgrass, especially for fungi. PICRUSt(phylogenetic investigation of communities by reconstruction of unobserved states) predictive analysis indicated that 23 metabolic pathways of bacteria were overrepresented in rice. In addition, the main trophic mode of fungi was pathotroph according to FUNGuild analysis. A positive correlation between bacteria and fungi in rice roots was found via network analysis. Anaeromyxobacter, Azospira and Pseudolabrys were the vital bacteria, Phaeosphaeria and Funneliformis were the dominant fungi in maintaining the stability of the ecological network. These results provided data and a theoretical basis for the in-depth understanding of what role endophytes play in rice resistance to barnyardgrass stress and will have implications on improving the resistance of rice against biotic stress using root microbiota.

关键词： rice Echinochloa crus-galli biotic stress endophytic bacterium endophytic fungus phylogenetic investigation of communities by reconstruction of unobserved states FUNGuild test

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Mixing trait-based corn(Zea mays L.)cultivars increases yield through pollination synchronization and increased cross-fertilization

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The Crop Journal 2023年第1期11卷 291-300页

作者： Hongping li Kui liu Zhibin li Moubiao Zhang Yongen Zhang shuyan li Xiuling Wang Jinlong Zhou Yali Zhao Tianxue liu Chaohai li Agronomy College Henan Agricultural UniversityCollaborative Innovation Center of Henan Grain Crops/Co-construction State Key Laboratory of Wheat and Maize Crop ScienceZhengzhou 450046HenanChina Swift Current Research and Development Centre Swift CurrentSaskatchewan S9H 3X2Canada Agricultural Information Institute Chinese Academy of Agricultural ScienceBeijing 100081China Henan Institute of Meteorological Sciences/CMAHenan Key Laboratory of Agrometeorological Support and Applied Technique Zhengzhou 450046HenanChina

Abiotic stress such as high temperature at flowering is one of many conditions reducing yield of corn(Zea mays L.).Mixing corn cultivars with diverse functional traits increases within-crop diversity and provides a potential means of mitigating yield losses under stress *** conducted a three-year field study to investigate the effects of cultivar mixtures on kernel setting rate,pollen sources,and *** study consisted of six treatments,including two high temperature-tolerant(HTT)monocrops of WK702 and DH701,two high temperature-sensitive(HTS)monocrops of DH605 and DH662,and two HTT–HTS mixtures of WK702-DH605 and *** anthesis–silking interval(ASI)was 0.9–1.6 days shorter in mixtures than in *** setting rate was increased in mixtures(86.4%–88.7%)compared with those in monocrops(74.7%–84.1%)as a result of synchrony and complementarity of *** yields of the HTT–HTS mixtures increased by 13.3%–18.7%,equivalent to 1169 to1605 kg ha^(-1),in comparison with HTS corn *** results of SSR markers showed that crossfertilization percentage in corn cultivar mixtures ranged from 29.3%to 47.8%,partially explaining yield *** equivalent ratio(LER)was 1.12 for corn mixtures and the partial land equivalent ratio(e.g.,>0.5)showed the complementary benefits in corn *** results indicated that mixing corn cultivars with diverse flowering and drought-tolerance traits increased yields via pollination synchrony.

关键词： Cultivar heterogeneity Cultivar mixture Flowering trait synchronization Fertilization complementarity Kernel set

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Downregulated lncRNA DRAIC enhances the radiotherapy sensitivity of human HCC cell line HepG2 by targeting miR-223-3p

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Oncology and Translational Medicine 2022年第6期8卷 293-300页

作者： shuyan li Jian Zhang Zhengming Wang Wenjun li Department of Radiotherapy PLA Rocket Force Characteristic Medical CenterBeijing 100088China

Objective This study aims to investigate the effects of the long noncoding RNA(lncRNA)DRAIC on the proliferation,apoptosis,and radiosensitivity of hepatocellular carcinoma(HCC)cells and the molecular mechanisms *** Cancer tissues and their corresponding adjacent tissues from 30 patients with HCC were collected,and the expression levels of DRAIC and miR-223-3p were detected via RT-q *** interference and miR-223-3p overexpression vectors were transfected into HepG2 *** addition,DRAIC and miR-223-3p interference vectors were co-transfected into HepG2 *** constructed cells were irradiated at 4 *** colony formation assay,MTT assay,and flow cytometry were performed to detect the radiosensitivity,proliferation inhibition rate,and apoptosis rate of HepG2 cells,*** luciferase reporter gene assay was performed to detect the targeted regulation of DRAIC on miR-223-3p *** The expression level of DRAIC in HCC tissues was higher than that in paracancer tissues,whereas the expression level of miR-223-3p was lower in HCC tissues than that in paracancer tissues(Pliferation inhibition and apoptosis rates of HepG2 cells(Pliferation inhibition and apoptosis rates increased(Pliferation,apoptosis,and radiosensitivity of HepG2 *** Inhibition of DRAIC expression can inhibit the proliferation of HepG2 cells,promote cell apoptosis,and enhance the radiosensitivity of cells via upregulation of miR-223-3p.

关键词： the long noncoding RNA(lncRNA)DRAIC miR-223-3p hepatocellular carcinoma(HCC) radiosensitivity medium classification

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风干预处理对堆肥腐熟度及臭气排放量的影响

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农业工程学报 2016年第S2期32卷 247-253页

作者：臧冰李恕艳李国学中国农业大学资源与环境学院北京100193

该研究以风干猪粪堆肥为处理,以新鲜猪粪堆肥为对照,在秸秆调理相同C/N基础上,对两个处理腐熟度和臭气排放进行比较分析。从温度、p H值、电导率和发芽率来看,利用新鲜猪粪和风干猪粪堆肥所得的产品均能达到腐熟和无害化标准;在硫化氢... 详细信息

该研究以风干猪粪堆肥为处理,以新鲜猪粪堆肥为对照,在秸秆调理相同C/N基础上,对两个处理腐熟度和臭气排放进行比较分析。从温度、p H值、电导率和发芽率来看,利用新鲜猪粪和风干猪粪堆肥所得的产品均能达到腐熟和无害化标准;在硫化氢、羰基硫、二硫化碳、甲硫醚、乙硫醚、二甲二硫、甲硫醇和乙硫醇几种含硫臭气中,甲硫醚和二甲二硫占96%以上;风干猪粪堆肥比新鲜猪粪堆肥少排放71.09%的氨气,66.11%的甲硫醚和9.66%的二甲二硫。在不考虑风干环节存在的问题条件下,与新鲜猪粪堆肥相比,风干猪粪堆肥堆肥时间短,在堆肥品质提高的基础上,堆肥产品产量增加60%。通过降低水分和体积风干猪粪运输成本降低1/3,且对环境影响小,是远距离资源化处理畜禽粪便的较好途径。

关键词：堆肥粪酶含硫臭气氨气腐熟度

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汉语方言的轻声

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语文研究 2005年第3期 48-52页

作者：李树俨韶关学院中文系广东韶关512005

文章对把轻声分为“调值的轻声和调类的轻声”的观点提出商榷。在比较了许多方言的基础上,文章认为,轻声是在字组中只有前字调类控制整个调式而后字失去了原调,其调类在连调中被中和的现象。是否是轻声,不能拿北京话轻声的声学表现作简... 详细信息

文章对把轻声分为“调值的轻声和调类的轻声”的观点提出商榷。在比较了许多方言的基础上,文章认为,轻声是在字组中只有前字调类控制整个调式而后字失去了原调,其调类在连调中被中和的现象。是否是轻声,不能拿北京话轻声的声学表现作简单的比附。同时,轻声不是纯语音化的音变,而是受语义条件控制的变音。文章推测,汉语方言的轻声经历了由音系底层向音系表层逐步发展的过程,大体经历了三个阶段,表现为上海、万荣、北京三种类型。从字本位的观点看,轻声产生的主要原因:一是以两字组为主编码取代单字编码格局,其中的单核结构是产生轻声的温床,叫语汇化轻声;二是因字而生句,实字虚化,特别是新兴语气字是成句的必要条件,叫句法化轻声。

关键词：音系轻声变音类型原因语汇化句法化

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《红楼梦传奇》副文本题写向度与心理机制

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华中师范大学学报（人文社会科学版） 2024年第6期63卷 79-88页

作者：李淑岩黑龙江大学文学院黑龙江哈尔滨150080

作为《红楼梦》改编史上第一部戏曲著作,乾嘉时期仲振奎的《红楼梦传奇》自问世便备受瞩目,一时间声动江南,时贤俊彦序跋题词纷纭,内容丰富。考察《红楼梦传奇》嘉庆四年己未绿云红雨山房刻本的序、跋、题词等副文本情况,题写者的身份... 详细信息

作为《红楼梦》改编史上第一部戏曲著作,乾嘉时期仲振奎的《红楼梦传奇》自问世便备受瞩目,一时间声动江南,时贤俊彦序跋题词纷纭,内容丰富。考察《红楼梦传奇》嘉庆四年己未绿云红雨山房刻本的序、跋、题词等副文本情况,题写者的身份都与传奇作者仲振奎有着千丝万缕的联系;其书写面向视角多维,或隐括《红楼梦传奇》内容之关键情节,或推扬剧作家艺术改编之创举,或摹绘《红楼梦传奇》彼时剧场搬演之情状,不一而足。而这些副文本撰写之心理机制,“寄情”与“补恨”无疑是剧作家与观剧者心有戚戚焉的心理共鸣。以上问题之揭示,对考察《红楼梦传奇》问世之初的乾嘉剧坛创作生态不无裨益。

关键词：仲振奎《红楼梦传奇》副文本题写向度创作机制

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法式善“宗陶”趣尚与乾嘉士林的隐逸之风

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民族文学研究 2020年第1期38卷 159-168页

作者：李淑岩哈尔滨师范大学文学院

乾嘉诗坛尚古师古之风盛行,濡染时风,法式善即是学陶诗人中较独特的一位。法式善身为蒙古八旗中为数不多的文官,三十余载的仕宦生涯,不曾离开官场半步,却在生活上、创作上时刻流露出对陶渊明的仰慕之情,这种趣尚渗透在其日常生活的书斋... 详细信息

乾嘉诗坛尚古师古之风盛行,濡染时风,法式善即是学陶诗人中较独特的一位。法式善身为蒙古八旗中为数不多的文官,三十余载的仕宦生涯,不曾离开官场半步,却在生活上、创作上时刻流露出对陶渊明的仰慕之情,这种趣尚渗透在其日常生活的书斋装饰设计上,表达在其诗歌创作的意象选择、艺术追求以及选评诗作旨趣方面。究其原因,除去民族个性、家学环境等因素外,最主要的原因当与其仕宦遭际以及乾嘉时期的时政气候不无关系,借此亦可窥见乾嘉士林的隐逸之风。

关键词：乾嘉诗坛法式善宗陶隐逸之风

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我国高校境外办学:特点、问题与推进策略

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高校教育管理 2019年第1期13卷 98-103,124页

作者：李淑艳江苏大学国际合作与交流处江苏镇江212013

我国高校境外办学处于起步探索阶段。在发展过程中,境外办学呈现规模较小、发展速度缓慢,办学方式多样、办学特色不鲜明,"双一流"建设高校参与较少等特点;此外,我国高校境外办学还存在政策保障措施缺乏、高校自身国际竞争优势不彰、境... 详细信息

我国高校境外办学处于起步探索阶段。在发展过程中,境外办学呈现规模较小、发展速度缓慢,办学方式多样、办学特色不鲜明,"双一流"建设高校参与较少等特点;此外,我国高校境外办学还存在政策保障措施缺乏、高校自身国际竞争优势不彰、境外办学人才培养模式滞后、学历学位认证的国际合作有待加强等问题。针对这些问题,我们应积极采取相应的策略:尽快出台鼓励和规范境外办学的政策措施;将境外办学纳入高校发展整体布局;提高我国高校自身的国际竞争力;创新人才培养模式;加强学历学位认证的国际合作。

关键词：境外办学政策保障国际合作人才培养推进策略

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The Impact Heme Oxygenase -1 on the Regulating Factors of Hepatoma Cells＇ Cell Cycle

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International Journal of Technology Management 2014年第9期 60-62页

作者： Han GAO Tao ZHOU shuyan li Chunjing ZHANG Hongyue CHEN Biochemistry and Molecular Biology Teaching and Research Section Qiqihar Medical College Heilongjiang Province China

It aims to analyze the impact heme oxygenase -1 （heme oxygenase 1, HO-1） on regulating factors of human hepatoma cell HepG2＇s cell cycle, through constructing recombinant vector of pcDNA3.1 containing wild-type and mutant HO-1 gene （＋）-wtHO-1 and pcDNA3.1 （＋）-mHO-1G143H. By using the method of liposome-mediated, the recombinant vector was transfected hepatoma cell line HepG2. And the transfected one with empty vector was treated as a control group. By the selection of G418, stable expression of wild-type and mutant HO-1 in HepG2 liver cancer cell lines were established. Use the blot of semi-quantitative RT-PCR and Western to test transfected cell lines expressing levels of riO-1 mRNA and protein. As HO-1 expression in stably transfected cell lines altered, we use Western blot to test transfected cell lines P21, P27 protein expression levels. As result shows, we got 1 HO-over-expression of wild-type and mutant in HepG2 cells; wild- type and mutant＇s over expression of HO-1 can induce the expression of tumor suppressor genes p21 and *** got the conclusion that HO-l＇s over-expression of tumor suppressor genes p21 and p27 is unrelated to the expression of heme decomposition products. HO-1 may regulate the expression of p21 and p27 through other mechanisms.

关键词： Heme oxygenase-1 liver cells cell cycle regulation factors

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