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褶皱滤袋脉冲喷吹清灰性能实验研究

中国粉体技术 2023年第6期29卷 134-142页

作者：尹子杰鲁进利钱付平郑志敏何杰庄乾双安徽工业大学建筑工程学院安徽马鞍山243032 安徽工业大学能源与环境学院安徽马鞍山243032 安徽海螺川崎工程有限公司安徽芜湖241000 南通恒清环保科技有限公司江苏南通226001

与圆形滤袋相比,褶皱滤袋可以增大过滤面积,相同处理风量下可减少设备占地尺寸。为了提高褶皱滤袋的清灰性能,搭建褶皱滤袋脉冲喷吹实验系统,实验研究脉冲压力、脉冲宽度、褶皱比对褶皱滤袋沿长度方向侧壁峰值压力分布规律的影响。结果... 详细信息

与圆形滤袋相比,褶皱滤袋可以增大过滤面积,相同处理风量下可减少设备占地尺寸。为了提高褶皱滤袋的清灰性能,搭建褶皱滤袋脉冲喷吹实验系统,实验研究脉冲压力、脉冲宽度、褶皱比对褶皱滤袋沿长度方向侧壁峰值压力分布规律的影响。结果表明:不同喷吹参数时,褶皱滤袋侧壁峰值压力沿长度方向逐渐减小,靠近滤袋底部峰值压力又略微增大;脉冲压力对侧壁峰值压力影响显著,侧壁峰值压力随着脉冲压力增加而增大;脉冲宽度对侧壁峰值压力影响不显著,褶皱比对侧壁峰值压力影响较显著,当脉冲压力为0.4~0.6 MPa、脉冲宽度为100~200 ms时,褶皱比为0.71的滤袋清灰效果更好;粉尘动态脱离结果表明清灰是在高速脉冲气流携带和滤袋膨胀2种机制下共同实现的。

关键词：褶皱滤袋脉冲清灰侧壁峰值压力褶皱比

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Acoustic characteristics of stop consonants in fluent reading Chinese Putonghua speech of adult stutterers

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Chinese Journal of Acoustics 2013年第3期32卷 298-308页

作者： FENG Yongqiang YAN qian GAO Xinglong PAN fuping XING Lili LIN Chunlan PAN Jielin Key Laboratory of Speech Acoustics and Content Understanding Institute of AcousticsChinese Academy of Sciences Lin's Speech Training Center

This study investigated whether adults who stutter and normal adult speakers differ in the production of stop consonants in fluent reading Chinese Putonghua *** onset time（VOT） was measured and the spectral moments at the stop burst were calculated for the stutterers（both before and after the speech therapy） and also for the nonstutterers. The statistical results showed that there were no significant differences in VOT between the nonstutterers and stutterers either prior to or after therapy,although the mean VOT of the stutterers was slightly greater than that of the *** results also indicated that both the obstruction place and the subsequent syllabic final exhibited an influence to a greater extent on VOT for the *** the spectral domain,the spectral mean of the stuttering participants before therapy was significantly different from that of the normal participants, whereas the group difference became insignificant after the therapy *** smaller spectral mean for the stutterers might be interpreted as a more posterior occlusion in the oral cavity when producing alveolars and *** addition,productions of the stutterers scattered with a wider range in the space of spectral ***,the smaller main effect of syllabic finals on the mean spectral frequency of the burst suggested that the stutterers exhibited weaker anticipatory coarticulation than the nonstutterers.

关键词： Acoustic characteristics of stop consonants in fluent reading Chinese Putonghua speech of adult stutterers VOT

A Novel Magnetic Carbon Based Catalyst Synthesized from Reed Straw and Electric Furnace Dust for Biodiesel Production

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Journal of Renewable Materials 2022年第8期10卷 2099-2115页

作者： fuping Wang Lele Kang Rui Ji Tianji Liu Qing Yu Di Gao Xiaoman Wang Yitong Wang Jie Yang College of Metallurgy and Energy North China University of Science and TechnologyTangshan063210China qian’an College North China University of Science and TechnologyQian’an064400China

In the era of serious greenhouse gas emission and energy shortage,it is necessary to use solid waste to prepare new renewable *** this work,the potential application of reed straw and electric furnace dust was ***,magnetic carbon carrier(EFD&C)was prepared by high temperature calcination,and then magnetic carbon catalyst(SM@EFD&C)was prepared by activation of sodium *** catalyst was used to prepare biodiesel by transesterification reaction to test its activity and *** biochar,EFD&C and SM@EFD&C were detected by Diffraction of X-rays(XRD),Fourier transform infrared(FT-IR),Inductively coupled plasma(ICP),Scanning electron microscope(SEM),Transmission electron microscope(TEM),Brunauer-Emmett-Teller(BET),Vibrating sample magnetometer(VSM),Temperature programmed desorption of CO_(2)(CO_(2)-TPD)and Thermogravimetric analysis(TG-DTG).The results showed that SM@EFD&C catalyst had some characteristics including porous structure,easy adsorption and better *** the reaction conditions of 65℃for 2 h with 6 wt%catalyst and methanol/oil molar ratio of 15:1,the biodiesel yields from reed biochar and EFD&C were only 4.88 wt%and 0.03 wt%,respectively,while the yield from SM@EFD&C catalyst reached 93.14 wt%(89.84 wt%after 7 cycles)under the same conditions,which proved that it had good catalytic activity and stability when used in biodiesel *** study is of great significance of carbon dioxide emission reduction and environmental protection.

关键词： Reed biochar electric furnace dust magnetic biochar catalyst biodiesel environmental protection

A forced alignment approach to detect Chinese repetitive stuttering

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Chinese Journal of Acoustics 2013年第3期32卷 309-321页

作者： ZHANG Junbo YAN qian GAO Xinglong PAN fuping FENG Yongqiang XING Lili LIN Chunlan PAN Jielin Key Laboratory of Speech Acoustics and Content Understanding Institute of AcousticsChinese Academy of Sciences Lin's Speech Training Center

A forced alignment based algorithms to detect Chinese repetitive stuttering is studied. According to the features of repetitions in Chinese stuttered speech,improvement solutions are provided based on the previous research ***,a multi-span looping forced alignment decoding networks is designed to detect multi-syllable repetitions in Chinese stuttered ***,branch penalty factor is added in the networks to adjust decoding trend using recursive search in order to reduce the error from the complexity of the decoding networks. Finally,we re-judge the detected stutters by calculating confidence to improve the reliability of the detection *** experimental results show that compared to previous algorithm,the proposed algorithm can improve system performance significantly,about 18%average detection error rate relatively.

关键词： A forced alignment approach to detect Chinese repetitive stuttering than Phone

Paleoproterozoic crustal evolution of the Hengshan-Wutai—fuping region,North China Craton

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Geoscience Frontiers 2014年第4期5卷 485-497页

作者： Chunjing Wei Jiahui qian Xiwen Zhou MOE Key Laboratory of Orogenic Belts and Crustal Evolution School of Earth and Space SciencesPeking University Institute of Geology Chinese Academy of Geological Sciences

An arguable point regarding the Neoarchean and Paleoproterozoic crustal evolution of the North China Craton（NCC）is whether the tectonic setting in the central belt during the mid-Paleoproterozoic（2.35-2.0 Ga）was dominated by an extensional regime or an oceanic subduction-arc regime.A review of the midPaleoproterozoic magmatism and sedimentation for the Hengshan-Wutai-fuping region suggests that a back-arc extension regime was dominant in this *** conclusion is consistent with the observation that the 2.35-2.0 Ga magmatism shows a typical bimodal distribution where the mafic rocks mostly have arc affinities and the acidic rocks mainly comprise highly-fractioned calc-alkaline to alkaline（or A-type）granites,and that this magmatism was coeval with development of extensional basins characteristic of transgressive sequences with volcanic interlayers such as in the Hutuo *** the final amalgamation of the NCC was believed to occur at ～1.85 Ga,recent zircon U-Pb age dating for mica schist in the Wutai Group suggests a collisional event may have occurred at ～1.95 *** metamorphic ages of ～1.85 Ga,obtained mostly from the high-grade rocks using the zircon U-Pb approach,most probably indicate uplifting and cooling of these high-grade *** is because（i）phase modeling suggests that newly-grown zircon grains in highgrade rocks with a melt phase cannot date the age of peak pressure and temperature stages,but the age of melt crystallization in cooling stages;（ii）the metamorphic P-T paths with isobaric cooling under 6-7 kb for the Hengshan and fuping granulites suggest their prolonged stay in the middle-lower crust;and（iii）the obtained metamorphic age data show a continuous distribution from 1.95 to 1.80 ***,an alternative tectonic scenario for the Hengshan-Wutai-fuping region involves：（i）formation of a proto-NCC at ～2.5 Ga;（ii）back-arc extension during 2.35-2.0 Ga resulting in bimodal magmatism and sedimentation in rifting basins on an Archean basem

关键词： Bimodal magmatismMetamorphic P-T pathPaleoproterozoic tectonic evolutionHengshan-Wutai-fuping regionNorth China Craton

The functional role of respiratory chain in meiotic initiation during budding yeast sporulation

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The functional role of respiratory chain in meiotic initiati...

第九届中国模式真菌研讨会

作者： Haichao Zhao qian Wang Chao Liu fuping Wen Yujiao Liu Yuanting Wang Wei Li State Key Laboratory of Stem Cell and Reproductive Biology Institute of Zoology Chinese Academy of Sciences

Meiosis is an important step for sexual reproduction in most eukaryotes,it is also a special kind of cell division *** decision of cell to undergo meiosis is regulated by multiple signals,such as mating-type status,nu... 详细信息

关键词： sporulation respiration meiotic initiation Rim101 Ndi1

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丰城市紫云大桥总体设计

世界桥梁 2024年第6期52卷 15-21页

作者：王倩李文勃常付平上海市政工程设计研究总院(集团)有限公司上海200092

紫云大桥为江西省丰城市内跨越赣江的重要桥梁工程,主线桥梁长约3.7 km,由跨赣江主通航孔桥、水中引桥、陆上引桥,以及立交、匝道、梯坡道桥等组成。主通航孔桥采用主跨180 m的水滴型桥塔空间索面自锚式悬索桥,水中引桥和陆上引桥分别... 详细信息

紫云大桥为江西省丰城市内跨越赣江的重要桥梁工程,主线桥梁长约3.7 km,由跨赣江主通航孔桥、水中引桥、陆上引桥,以及立交、匝道、梯坡道桥等组成。主通航孔桥采用主跨180 m的水滴型桥塔空间索面自锚式悬索桥,水中引桥和陆上引桥分别采用双边箱组合梁和组合钢板梁结构。跨江段桥梁采用双层桥面布置,上层机动车道、下层人行和非机动车道的功能性设计增强了慢行过江体验感。主线桥梁均采用钢-混组合梁结构,避免了钢桥面疲劳和铺装易损难题,且施工便捷,对周围环境影响较小;陆上桥梁合理采用新型预制装配式组合钢板梁、UHPC湿接缝,提高了经济性、耐久性和施工效率,降低了全寿命周期内的维护成本。结合近远期规划,预留了远期高架桥延伸实施条件。

关键词：自锚式悬索桥空间索面水滴型桥塔双边箱组合梁装配式组合钢板梁桥梁设计

高速公路隧道消防水源取水工程设计选取及应用研究

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给水排水 2014年第7期40卷 74-78页

作者：钱经纬杨公博武福平李娜中国中铁二院工程集团有限责任公司成都610031 西南交通大学地球科学与环境工程学院成都610031 兰州交通大学环境与市政工程学院兰州730070 不详

在高速公路隧道消防工程中,消防水源主要为常年性溪流、地下水、水库与湖泊水、隧道涌水、市政自来水等五种常见水源。介绍了这些常见消防水源的取水方案适用原则及其在实际工程中的应用案例。在取水工程方案选择时引入SWOT矩阵分析法... 详细信息

在高速公路隧道消防工程中,消防水源主要为常年性溪流、地下水、水库与湖泊水、隧道涌水、市政自来水等五种常见水源。介绍了这些常见消防水源的取水方案适用原则及其在实际工程中的应用案例。在取水工程方案选择时引入SWOT矩阵分析法从优势、劣势、机会、威胁四个方面阐述五种取水方案。建立取水方案多目标决策模型,并对模型中的评价指标引入权重概念,根据受评项目加权平均分定性地做决策。

关键词：隧道消防水源取水工程 SWOT 目标决策

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明清江南地区油菜生产及其多重效益

农业考古 2022年第3期 166-172页

作者：惠富平钱伶俐李祥凝南京信息工程大学科学技术史研究院南京农业大学中华农业文明研究院广东小熊电器有限公司

明清时期江南地区油菜栽培更为普遍,其方志记载的热点区域位于嘉兴、湖州、杭州及苏州府一带。在以水稻为核心的轮作复种制度中,油菜栽培具有一定的养地作用,其田地整理、育苗移栽、浇灌、施肥等则形成明显的技术特色。与其他春花作物相... 详细信息

明清时期江南地区油菜栽培更为普遍,其方志记载的热点区域位于嘉兴、湖州、杭州及苏州府一带。在以水稻为核心的轮作复种制度中,油菜栽培具有一定的养地作用,其田地整理、育苗移栽、浇灌、施肥等则形成明显的技术特色。与其他春花作物相比,油菜可充蔬、榨油、肥田、作薪柴,农家种油菜可免交租税,出售油菜籽的收益既可应付日常生活开支,又可作为水稻、棉花生产的资本。在明清江南的社会经济条件下,油菜种植的扩展与其综合生产效益较高有密切关系。当今应充分挖掘和利用油菜历史文化资源,继承稻油轮作的生态农业传统,力争实现油菜生产在供蔬榨油、养地肥田以及景观营造方面的多重效益。

关键词：油菜生产稻油轮作明清时期江南地区