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一种面向嵌入式NVMe存储设备的对齐优化设计

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航空计算技术 2024年第1期54卷 103-106页

作者：王冬任晓瑞杨琼张鹏朱双四赵艾琦航空工业西安航空计算技术研究所陕西西安710000

嵌入式领域的软件存储栈较为精简,嵌入式文件系统等上层软件在使用NVMe驱动时没有专门的块设备管理层处理缓冲区不对齐,导致发生操作失败、数据内容不一致等问题。文章提出了一种对齐优化设计,当用户读、写缓冲区不满足对齐要求时,动态... 详细信息

嵌入式领域的软件存储栈较为精简,嵌入式文件系统等上层软件在使用NVMe驱动时没有专门的块设备管理层处理缓冲区不对齐,导致发生操作失败、数据内容不一致等问题。文章提出了一种对齐优化设计,当用户读、写缓冲区不满足对齐要求时,动态维护对齐链式缓冲池,以完成针对NVMe控制器的数据中转,同时按照通道数目建立了多链表对齐缓冲池,并使用计数信号量保证NVMe驱动的并发性能。通过这种优化设计能够以较小的性能损耗,解决嵌入式NVMe驱动因对齐导致的不可用问题。

关键词：对齐优化链式缓冲池并发性能嵌入式NVMe驱动

Cloning and Sequencing of a Full-Length cDNA Encoding the RuBPCase Small Subunit (RbcS) in Tea (Camellia sinensis)

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Agricultural Sciences in China 2009年第2期8卷 161-166页

作者： YE ai-hua JIANG Chang-jun ZHU Lin YU Mei WANG Zhao-xia DENG Wei-wei WEI Chao-lin Key Laboratory of Tea Biochemistry and Biotechnology Ministry of Agriculture/Anhui Agricultural University Hefei 230036 P.R.China Department of Biology Hefei Teachers College Hefei 230061 P.R.China

This study was aimed to isolate ribulose-1,5-bisphosphate carboxylase/oxygenase small subunit （RbcS） from tea plant [Camellia sinensis （L.） O. Kuntze]. In the study of transcriptional profiling of gene expression from tea flower bud development stage by cDNA-AFLP （cDNA amplified fragment length polymorphism）, we have isolated some transcript-derived fragments （TDFs） occurring in both the young and mature flower bud. One of them showed a high degree of similarity to RbcS. Based on the fragment, the full length of RbcS with 769-bp （EF011075） cDNA was obtained via rapid amplification of cDNA ends （RACE）. It contained an open reading frame of 176 amino acids consisting of a chloroplast transit peptide with 52 amino acids and a mature protein of 124 amino acids. The amino acids sequence presented a high identity to those of other plant RbcS genes. It also contains three conserved domains and a protein kinase C phosphorylation site, one tyrosine kinase phosphorylation site and two N-myristoylation sites. Analysis by RT-PCR showed that the expression of RbcS in tea from high to low was leaf, young stem, young flower bud and mature flower bud, respectively. The isolation of the tea Rubisco small subunit gene establishes a good foundation for further study on the photosynthesis of tea plant.

关键词： RbcS tea full-length cDNA

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双侧髂内动脉主干断裂的诊治分析

医学研究与战创伤救治 2024年第4期37卷 415-417页

作者：郑佳隆陈一杰张诚华潘志强艾叶青郭冰泉施建设解放军联勤保障部队第九一○医院(华侨大学附属海峡医院)SICU 泉州362000

0引言严重骨盆骨折合并失血性休克时,出血不易控制,出血量大,引起严重的病理生理改变,导致代谢性酸中毒、低体温、凝血功能障碍死亡三联征,其死亡率可达40%[1-2]。早期积极液体复苏、及时止血、损伤控制性手术的实施是有效的重要抢救措... 详细信息

0引言严重骨盆骨折合并失血性休克时,出血不易控制,出血量大,引起严重的病理生理改变,导致代谢性酸中毒、低体温、凝血功能障碍死亡三联征,其死亡率可达40%[1-2]。早期积极液体复苏、及时止血、损伤控制性手术的实施是有效的重要抢救措施。严重骨盆骨折合并双侧髂内动脉主干破裂少见,但死亡率极高,目前外科急诊探查和经导管动脉栓塞是治疗外伤性髂内动脉破裂出血的行之有效的方法。

关键词：髂内动脉主干断裂损伤控制多学科团队

Trinity of Chillingworth

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Sino-US English Teaching 2007年第6期4卷 65-70页

作者： WANG ai-yan School of Foreign Studies Shandong University of Finance Jinan 250014 China

Chillingworth is a complicated character in The scarlet letter. His image is a synthesis, or trinity, of the images of God, man of science and Satan, and the novel demonstrates a degradation from God to man of science and finally to a Satan of hatred. In this vicious transformation, his character as man of science plays a key role. Through the development of this character, Hawthorne expresses his criticism to those who lack necessary reverence for human heart and soul.

关键词： Chillingworth degradation lack of forgivingness man of science over-reacher

Inhibition of proliferation of prostate cancer cell line, PC-3, in vitro and in vivo using （-）-gossypol

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Asian Journal of Andrology 2010年第3期12卷 390-399,I0011页

作者： Xian-Qing Zhang Xiao-Feng Huang Shi-Jie Mu Qun-Xing An ai-Jun Xia Rui Chen Dao-Cheng Wu The Key Laboratory of Biomedical Information Engineering of Ministry of Education Xi ＇an Jiaotong University Xi ＇an 710038 China Department of Blood Transfusion Xij＇ing Hospital Xi ＇an 710032 China Central Laboratory Fourth Military Medical University Xi＇an 710032 China

We investigated the antiproliferative activity of （-）-gossypol on the human prostate cancer cell line PC3 in vitro and in vivo to elucidate its potential molecular mechanisms. Cell growth and viability were evaluated using the 3-（4,5-dimethylthiazol-2-yl）-2,5-diphenyltetrazolium bromide （MTT） assay, and cell apoptosis was detected by flow cytometry, terminal deoxynucleotidyl transferase dUTP nick end labelling （TUNEL） and electron microscopy. Expression of proliferating cell nuclear antigen （PCNA）, Bcl-2, CD31, caspase-3 and caspase-8 in tumour tissue was determined by immunohistochemistry. The drug concentration that yielded 50% cell inhibition （IC50 value） was 4.74 μg mL-1. In the PC-3 tumour xenograft study, （-）-gossypol （〉 5 mg kg-1） given once a day for 7 days significantly inhibited tumour growth in a dose-dependent manner. Immunohistochemical analysis revealed that （-）-gossypol enhanced caspase-3 and caspase-8 expression and decreased the expression of PCNA, Bcl-2 and CD31 in tumour tissues. It suggested that cell apoptosis and inhibition of angiogenesis might contribute to the anticancer action of （-）-gossypol.

关键词： apoptosis electron microscopy flow cytometry (-)-gossypol immunohistochemistry prostate cancer

Arab Attitudes Toward Gender Roles： From Homogeneous Stereotype to Heterogeneous Reality

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Sociology Study 2015年第3期5卷 213-222页

作者： Basem ai Atom Jordan University of Science and Technology Jordan

Western society has historically perceived Arab attitudes toward gender roles in a stereotypically negative light. This perception has had great influence on international public opinion toward Arab treatment of women, Western foreign policy toward the Arab world and development aid programs in the Middle East. This paper seeks to question the legitimacy of this perception by advancing the hypothesis that Arab attitudes toward gender roles are heterogeneous rather than homogeneous. To do so, it uses cross-cultural analysis in examining survey data regarding women＇s status in the Arab world, the significance of which contributes to a more accurate and well-rounded understanding of Arab attitudes toward gender roles. Results confirm the hypothesis that Arab attitudes toward gender roles are heterogeneous rather than homogeneous. Indeed, contrary to the Western stereotype regarding Arab attitudes toward gender roles and Arab treatment of women, cross-cultural analysis of the statistical information provided showed that Arab societies differ from one another in their attitudes toward gender roles and that Arab states differ from one another in their governmental approaches to gender equality in terms of personal status laws, gender-based discrimination in the workplace, and overall policies aimed at the advancement of women.

关键词： Sociology gender roles Western stereotypes Arab attitudes status of women

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败酱草质量研究

中国药物评价 2024年第1期41卷 52-55页

作者：易耀江易航李义保罗文焉爱勇江西济民可信药业有限公司江西宜春336000 江西省宜春市食品药品检验所江西宜春336000

目的:建立败酱草的薄层鉴别方法(TLC)及HPLC测定东莨菪内酯含量测定方法,为败酱草的质量研究提供依据。方法:采用TLC鉴别法,HPLC作为含量测定方法,色谱柱:Ultimate Plus C_(18)(4.6 mm×250 mm,5μm);流动相:乙腈-0.5%冰醋酸(15∶85);柱... 详细信息

目的:建立败酱草的薄层鉴别方法(TLC)及HPLC测定东莨菪内酯含量测定方法,为败酱草的质量研究提供依据。方法:采用TLC鉴别法,HPLC作为含量测定方法,色谱柱:Ultimate Plus C_(18)(4.6 mm×250 mm,5μm);流动相:乙腈-0.5%冰醋酸(15∶85);柱温:25℃;流速:1 mL·min^(-1);检测波长:343 nm。结果:薄层鉴别中检出与对照药材相同颜色的荧光斑点;东莨菪内酯在0.8384~20.96μg·mL^(-1)范围内线性关系良好(函数关系为Y=39.233X+7.0215,r=0.9999),回收率为91.0%~97.9%,均值为95.4%,RSD(n=6)为3%。结论:本方法鉴别专属性较好,含量测定方法专属性、稳定性、重现性、准确度良好,可用于败酱草的质量控制。

关键词：薄层色谱(TLC) 高效液相色谱(HPLC) 败酱草东莨菪内酯

Asymmetric carbonyl addition with the homochiral ketimine derived from (+) or (-)-pinanone and benzylamine

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Chinese Journal of Chemistry 1990年第6期8卷 561-567页

作者： MI ai-Qiao CHEN Yuan-Wei WANG Jing YANG Gui-Shu JIANG Yao-Zhong Chengdu Institute of Organic Chemistry Academia SinicaChengdu 610015

The carbonyl addition of the pinanone ketimine derived from (+) or (-)-2-hydroxy-pinan- 3-one and benzylamine has been studied and the optically active α,β-substituted-β-aminoethanol deriva- tives were obtained in ... 详细信息

关键词： OC pinanone and benzylamine

延安精神融入“中国近现代史纲要”课教学探析

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思想政治教育研究 2023年第5期39卷 101-106页

作者：刘林凤首都师范大学马克思主义学院北京100089

延安精神与“中国近现代史纲要”课在价值导向、主题主线以及教学实践上具有高度的契合性。延安精神融入“中国近现代史纲要”课教学在内容上要准确把握延安精神的本质与核心,重点关注中国人民在延安奋斗的主题及艰辛历程,中国共产党在... 详细信息

延安精神与“中国近现代史纲要”课在价值导向、主题主线以及教学实践上具有高度的契合性。延安精神融入“中国近现代史纲要”课教学在内容上要准确把握延安精神的本质与核心,重点关注中国人民在延安奋斗的主题及艰辛历程,中国共产党在延安时期的革命贡献及中国人民选择中国共产党的原因,中国革命走向胜利的原因和意义。在融合路径上,要精心研究教学内容,灵活利用红色资源,积极推进实践活动。

关键词：延安精神 “中国近现代史纲要”课教学融入