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Investigation of mass transfer model of CO_(2) absorption with Rayleigh convection using multi-relaxation time lattice Boltzmann method

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Chinese Journal of Chemical Engineering 2022年第10期50卷 130-142页

作者： Longyun Zheng Kai Guo hongwei cai Bo Zhang Hui Liu Chunjiang Liu School of Chemical Engineering and Technology Tianjin UniversityTianjin 300072China State Key Laboratory of Chemical Engineering Tianjin UniversityTianjin 300072Chin

CO_(2) absorption into absorbents is a widely used method to reduce carbon emissions,in which the concentration gradient near the gas-liquid interface may induce Rayleigh convection(RC).Once RC occurs,the mass transfer rate will be significantly ***,it is necessary to explore the mass transfer enhancement mechanism further and develop a penetration/surface divergence hybrid mass transfer *** this study,we conduct research on the process of CO_(2) absorption into ethanol with ***,we use a multi-relaxation time lattice Boltzmann method to simulate the absorption process and obtain the flow and concentration *** we also verify the reliability of the numerical simulation results by comparing with the experimental ***,we analyze the characteristics of non-uniform flow and concentration fields in ***,we divide the near-interface region into diffusion-dominated and convection-dominated mass transfer zones by checking whether the horizontal average velocity is greater than 1.0×10^(-4) m·s^(-1).Furthermore,based on the differences in mass transfer mechanisms of the aforementioned two zones,we propose a penetration/surface divergence hybrid model to predict the instantaneous mass transfer *** prediction results demonstrate that the hybrid model can precisely predict the instantaneous mass transfer coefficient of the entire CO_(2) absorption *** proposed hybrid model provides a promising way to deal with the complex mass transfer problems with non-uniform flow and concentration fields.

关键词： Carbon dioxide Absorption Rayleigh convection Numerical simulation multiple-relaxation-time orgeneralized lattice Boltzmannmodel(MRT-LBM) Mass transfer

Origin of the Chinese cultivated rice(Oryza sativa L.)

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Chinese Science Bulletin 1999年第4期44卷 295-304页

作者： Xiangkun Wang Chuanqing Sun hongwei cai Juzhong Zhang Chinese Agr Univ Beijing 100094 Peoples R China Henan Archeolog Inst Zhengzhou 450004 Peoples R China

The following new research progresses are summarized and discussed, which are related to 3 main problems in origin of rice cultivation in China: 1. new hypothesis of rice cultivation in Chinamiddle Yangtze River and upper Huai River regions; 2. primitive cultivated rice and the strengthen period of domestication; 3. genetic diversity centers of cultivated rice in China; 4. China and South Asia might be two independent systems of origin and differentiation of Asian cultivated rice; 5. morphological classification of common wild rice of China; 6. primitive progenitor of common wild rice; 7. direct progenitor of cultivated rice; 8. present or not the annual wild rice in China; 9. differentiation or not the common wild rice into Indica and Japonica; 10. origin and differentiation of Indica and Japonica.

关键词： rice cultivation of China homeland of cultivated rice progenitor of cultivated rice origin of Indica and Japonica.

Optical Rotation Detection for Atomic Spin Precession Using a Superluminescent Diode

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Photonic Sensors 2019年第2期9卷 135-141页

作者： Xuejing LIU Yang LI hongwei cai Ming DING Jiancheng FANG Wei JIN School of Inst ru men ta tion Science and Opto-electronics Engineering Beihang University Beijing 100191 China

A superluminescent diode (SLD) as an alternative of laser is used to detect optical rotation for atomic spin precession. A more uniform Gauss configuration without additional beam shaping and a relatively high power of the SLD have a potential for atomic magnetometers, which is demonstrated in theory and experiments. In addition, the robustness and compactness enable a more practical way for optical rotation detections, especially for applications in magnetoencephalography systems.

关键词： Superluminescent diode atomic magnetometer magnetoencephalography atomic spin precessiondetection Larmor precession

Molecular Evolution of the TACl Gene from Rice(Oryza sativa L.)

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Journal of Genetics and Genomics 2012年第10期39卷 551-560页

作者： Jiahuan Jiang Lubin Tan Zuofeng Zhu Yongcai Fu Fengxia Liu hongwei cai Chuanqing Sun State Key Laboratory of Plant Physiology and Biochemistry National Centre for Evaluation of Agricultural Wild Plants(Rice)Department of Plant Genetics and BreedingChina Agricultural University Beijing 100193 China Rice Research Institute Fujian Academy of Agricultural ScienceFuzhou 350018China

Tiller angle is a key feature of the architecture of cultivated rice （Oryza sativa）, since it determines planting density and influences rice yield. Our previous work identified Tiller Angle Control 1 （TACI） as a major quantitative trait locus that controls rice filler angle. To further clarify the evolutionary characterization of the TAC1 gene, we compared a TACl-containing 3164-bp genomic region among 113 cultivated varieties and 48 accessions of wild rice, including 43 accessions of O. rufipogon and five accessions of O. nivara. Only one single nucleotide polymorphism （SNP）, a synonymous substitution, was detected in TAC1 coding regions of the cultivated rice varieties, whereas one synonymous and one nonsynonymous SNP were detected among the TAC1 coding regions of wild rice accessions. These data indicate that little natural mutation and modification in the TAC1 coding region occurred within the cultivated rice and its progenitor during evolution. Nucleotide diversities in the TAC1 gene regions of O. sativa and O. rufipogon of 0.00116 and 0.00112, respectively, further indicate that TAC1 has been highly conserved during the course of rice domestication. A functional nucleotide polymorphism （FNP） of TAC1 was only found in the japonica rice group. A neutrality test revealed strong selection, especially in the 3＇-flanking region of the TAC1 coding region containing the FNP in the japonica rice group. However, no selection occurred in the indica and wild-rice groups. A phylogenetic tree derived from TAC1 sequence analysis suggests that the indica and japonica subspecies arose indepen- dently during the domestication of wild rice.

关键词： Diversity Evolution Rice Sequence TAC1

Identification and classification of subspecies of Asian cultivated rice and their hybrids

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Chinese Science Bulletin 1998年第22期43卷 1864-1872页

作者： Xiangkun Wang Renhua Li Chuanqing Sun Zichao Li hongwei cai Xinli Sun China Agr Univ Beijing 100094 Peoples R China

Having reviewed the major classification systems proposed by various scholars across the world, it is found that \%indica\% and \%japonica\% under \%***\% L. are two major directions thoroughly differentiated from the Asian cultivated rice, forming the framework of the classification structure. A system with \%indica\% and \%japonica\% as the only two subspecies is therefore *** are various ways to determine the indica_japonica identity of hybrid rice, but the "combined morphological trait index"(CMT index) method is more efficient and easier to handle, although the isozyme analysis, molecular marker analysis and grain quality assay methods are also feasible.

关键词： Asian cultivated rice subspecies intersubspecific hybrids identification classification.

Identification and Fine Mapping of rhm1 Locus for Resistance to Southern Corn Leaf Blight in Maize

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Journal of Integrative Plant Biology 2012年第5期54卷 321-329页

作者： Yuanzeng Zhao Xiaomin Lu Chaoxian Liu Haiying Guan Mei Zhang Zhongfeng Li hongwei cai Jinsheng Lai State Key Laboratory of Agrobiotechnology and National Maize Improvement Center Department of Plant Genetics and BreedingChina Agricultural UniversityBeijing 100193China Department of Life Science and Technology Henan Institute of Science and TechnologyXinxiang 453003China Henan Academy of Agricultural Sciences Zhengzhou 450002China

rhml is a major recessive disease resistance locus for Southern corn leaf blight （SCLB）. To further narrow down its genetic position, F2 population and BCIFI population derived from the cross between resistant （H95rhm） and susceptible parents （H95） of maize （Zea mays） were constructed. Using newly developed markers, rhml was initially delimited within an interval of 2.5 Mb, and then finally mapped to a 8.56 kb interval between InDel marker IDP961-503 and simple sequence repeat （SSR） marker A194149--1. Three polymorphic markers IDP961-504, IDP B2-3 and A194149-2 were shown to be co-segregated with the rhml locus. Sequence analysis of the 8.56 kb DNA fragment revealed that it contained only one putative gene with a predicted amino acid sequence identical to lysine histidine transporter 1 （LHT1）. Comparative sequence analysis indicated that the LHT1 in H95rhrn harbors a 354 bp insertion in its third exon as compared with that of susceptible alleles in B73, H95 and Mo17. The 354 bp insertion resulted in a truncation of the predicted protein of candidate resistance allele （LHT1-H95rhm）. Our results strongly suggest LHTI as the candidate gene for rhml against SCLB. The tightly linked molecular markers developed in this study can be directly used for molecular breeding of resistance to Southern corn leaf blight in maize.

关键词： Bipolaris maydis fine-mapping maize rhml Southern corn leaf blight Zea mays.

Residual fluoride self-activated effect enabling upgraded utilization of recycled graphite anode

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Journal of Energy Chemistry 2024年第6期93卷 24-31,I0002页

作者： Shuzhe Yang Qingqing Gao Yukun Li hongwei cai Xiaodan Li Gaoxing Sun Shuxin Zhuang Yujin Tong Hao Luo Mi Lu School of Materials Science and Engineering Xiamen University of TechnologyXiamen 361024FujianChina Faculty of Physics University of Duisburg-EssenDuisburg D-47057Germany

Recycling graphite anode from spent lithium-ion batteries(SLIBs)is regarded as a crucial approach to promoting sustainable energy storage ***,the recycled graphite(RG)generally presents degraded structure and ***,the residual fluoride self-activated effect is proposed for the upgraded utilization of *** and low-energy water immersion treatment not only widens the interlayer spacing,but also retains appropriate fluoride on the surface of *** analysis and experiments demonstrate that the residual fluoride can optimize Li~+migration and deposition kinetics,resulting in better Li~+intercalation/deintercalation in the interlayer and more stable Li metal plating/stripping on the surface of RG,As a result,the designed LFP||RG full cells achieve ultrahigh reversibility(~100%Coulombic efficiency),high capacity retention(67%after 200 cycles,0.85 N/P ratio),and commendable adaptability(stable cycling without short-circuiting,0.15 N/P ratio).The energy density is improved from 334 Wh kg^(-1)of 1.1 N/P ratio to 367 Wh kg^(-1)of 0.85 N/P ratio(total mass based on cathode and anode).The exploration of RG by residual fluoride self-activated effect achieves upgraded utilization beyond fresh commercial graphite and highlights a new strategy for efficient reuse of SLIBs.

关键词： Spent lithium-ion batteries Recycled graphite anode Fluoride Self-activated effect Upgraded utilization

Phenotypical and gene co-expression network analyses of seed shattering in divergent sorghum(Sorghum spp.)

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The Crop Journal 2023年第2期11卷 478-489页

作者： Xin Xiao Mengjiao Zhu Yishan Liu Jingru Zheng Yiping Cui Candong Xiong Jiangjiang Liu Jun Chen hongwei cai College of Agronomy and Biotechnology China Agricultural UniversityBeijing 100193China College of Grassland Science and Technology China Agricultural UniversityBeijing 100193China Forage Crop Research Institute Japan Grassland Agricultural and Forage Seed Association388-5 HigashiakadaNasushiobaraTochigi 329-2742Japan

Sorghum[Sorghum bicolor(L.)Moench],a multipurpose C4 crop,is also a model species of the Poaceae family for plant *** the process of domestication,the modification of seed dispersal mode is considered a key event,as the loss of seed shattering caused a significant increase in *** order to understand the seed shattering process in sorghum,we further studied eight previously identified divergent sorghum germplasm with different shattering *** described their phenotypes in great detail,analyzed the histology of abscission zone,and conducted a gene co-expression *** observed that the abscission layer of the most strong-shattering varieties began to differentiate before the 5-10 cm panicles development stage and was completely formed at flag leaf *** protective cells on the pedicels were also fully lignified by *** the weighted gene correlation network analysis(WGCNA),we mined for candidate genes involved in the abscission process at the heading *** found that these genes were mainly associated with such biological processes as hormone signal transmission(SORBI_3003G361300,SORBI_3006G216500,SORBI_3009G027800,SORBI_3007G077200),cell wall modification and degradation(SORBI_3002G205500,SORBI_3004G013800,SORBI_3010G022400,SORBI_3003G251800,SORBI_3003G254700,SORBI_3003G410800,SORBI_3009G162700,SORBI_3001G406700,SORBI_3004G042700,SORBI_3004G244600,SORBI_3001G099100),and lignin synthesis(SORBI_3004G220700,SORBI_3004G062500,SORBI_3010G214900,SORBI_3009G181800).Our study has provided candidate genes required for shedding for further *** believe that function characterization of these genes may provide insight into our understanding of seed shattering process.

关键词： Divergent sorghum Seed shattering Abscission zone WGCNA

Analysis of QTLs for yield-related traits in Yuanjiang common wild rice (Oryza rufipogon Griff.)

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Journal of Genetics and Genomics 2010年第2期37卷 147-157页

作者： Qiang Fu Peijiang Zhang Lubin Tan Zuofeng Zhu Dan Ma Yongcai Fu Xinchun Zhan hongwei cai Chuanqing Sun State Key Laboratory of Plant Physiology and Biochemistry National Center for Evaluation of Agricultural WiM Plants (Rice) Laboratory of Crop Heterosis and Utilization of Ministry of Education Beijing Key Laboratory of Crop Genetic Improvement Key Laboratory of Crop Genetic Improve- ment and Genome of Ministry of Agriculture Department of Plant Genetics and Breeding China Agricultural University Beijing 100193 China Institute of Rice Research Anhui Academy of Agricultural Sciences Hefei 230031 China

Using an accession of common wild rice （Oryza rufipogon Griff.） collected from Yuanjiang County, Yunnan Province, China, as the donor and an elite cultivar 93-11, widely used in two-line indica hybrid rice production in China, as the recurrent parent, an advanced backcross populations were developed. Through genotyping of 187 SSR markers and investigation of six yield-related traits of two gen- erations （BC4F2 and BC4F4）, a total of 26 QTLs were detected by employing single point analysis and interval mapping in both genera-tions. Of the 26 QTLs, the alleles of 10 （38.5%） QTLs originating from O. rufipogon had shown a beneficial effect for yield-related traits in the 93-11 genetic background. In addition, five QTLs controlling yield and its components were newly identified, indicating that there are potentially novel alleles in Yuanjiang common wild rice. Three regions underling significant QTLs for several yield-related traits were detected on chromosome 1, 7 and 12. The QTL clusters were founded and corresponding agronomic traits of those QTLs showed highly significant correlation, suggesting the pleiotropism or tight linkage. Fine-mapping and cloning of these yield-related QTLs from wild rice would be helpful to elucidating molecular mechanism of rice domestication and rice breeding in the future.

关键词： common wild rice yield-related traits advanced backcross population QTL