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Intergeneric chromosome-specific painting reveals differential chromosomal transmission from Tripidium arundinaceum in sugarcane progeny

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Journal of Integrative Agriculture 2024年第11期23卷 3751-3762页

作者： Fan Yu Zehuai Yu Jin Chai Xikai Yu Chen Fu Xinwang Zhao hailong chang Jiawei Lei Baoshan Chen Wei Yao Muqing Zhang Jiayun Wu Qinnan Wang Zuhu Deng State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangxi Key Laboratory for Sugarcane Biology College of Agriculture Guangxi University National Engineering Research Center for Sugarcane Fujian Agriculture and Forestry University Institute of Nanfan & Seed Industry Guangdong Academy of Sciences Key Laboratory of Sugarcane Biology and Genetic Breeding Ministry of Agriculture and Rural Affairs/Fujian Agriculture and Forestry University

Sugarcane has recently attracted increasing attention for its potential as a source of sugar and bioethanol, so increasing its yield is essential to ensure the sugar security and bioenergy production. Intergeneric hybridization is a highly efficient method to produce new genetic variants of crop plants, particularly those species with high ploidy such as sugarcane(Saccharum spp.). Tripidium arundinaceum exhibits many desirable agronomic traits, and has been widely studied to produce hybrids with improved stress tolerance and other characteristics in sugarcane breeding. However, the genetic relationship between T. arundinaceum and Saccharum species, and the individual T. arundinaceum chromosomal compositions in sugarcane hybrids are still elusive. Here we used whole-genome single-nucleotide polymorphisms(SNPs) to ascertain the phylogenetic relationships between these species and found that T. arundinaceum is more closely related to Saccharum than Sorghum, in contrast to the previous narrow genetic analyses using chloroplast DNA. Additionally, oligonucleotide(oligo)-based chromosome-specific painting derived from Saccharum officinarum was able to distinctly identify the chromosomes of T. arundinaceum. We developed the oligo-genomic in situ hybridization(GISH) system for the first time, to unveil the novel chromosome translocations and the transmission of individual T. arundinaceum chromosomes in sugarcane progeny. Notably,we discovered that the chromosomal transmission of T. arundinaceum exhibited several different inheritance modes,including n, 2n, and over 2n in the BC1 progenies. Such inheritance patterns may have resulted from first division restitution(FDR) or FDR+nondisjunction of a chromosome with the sister chromatids in the second meiosis division/second division restitution(FDR+NSC/SDR) model during meiosis. These results will be of substantial benefit for the further selection of T. arundinaceum chromosomes for sugarcane genetic improvement.

关键词： sugarcane Tripidium arundinaceum chromosome painting Oligo-FISH chromosomal transmission

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智能生活运动辅助仪系统设计

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太原学院学报（自然科学版） 2024年第3期42卷 27-33页

作者：常海龙山西职业技术学院电子与通信工程系山西太原030006

针对非专业的运动者,在运动过程中往往忽视血氧和心率等重要身体机能指标,这些指标不仅影响运动效率,而且在身体不满足高强度运动条件下,存在潜在的健康隐患。为满足非专业运动者健康运动需求,设计一款基于STM32F103C8T6单片机智能生活... 详细信息

针对非专业的运动者,在运动过程中往往忽视血氧和心率等重要身体机能指标,这些指标不仅影响运动效率,而且在身体不满足高强度运动条件下,存在潜在的健康隐患。为满足非专业运动者健康运动需求,设计一款基于STM32F103C8T6单片机智能生活运动辅助仪系统,包括设备端和手机端,设备端有数据采集模块、信号处理模块、数据显示模块三大部分,手机端配备专用安卓平台App,内置专业的运动视频,在不同身体机能条件下,全方位地提供最佳的运动指导,可实现运动生活简单化、健康化、专业化,为智能生活运动辅助设备的研究奠定一定基础。

关键词：智能运动单片机血氧饱和度心率

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Trans-membrane controlling of an amphiphilic metalloporphyrin

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Chinese Science Bulletin 2000年第12期45卷 1082-1085页

作者： ZHANG Yunhong MA Chen chang hailong LI Qianshu FENG Juan AI Xicheng School of Chemical Engineering and Materials Science Beijing Institute of TechnologyBeijing 100081China Institute of Chemistry Chinese Academy of SciencesBeijing 100080China

In order to perform a transfer process of the porphyrin moiety across membrane media, an amphiphilic porphyrin 5,10,15-tri(4-hydroxyphenyl)-20-(4-hexadecyloxy-phenyl) porphyrin (P1) and its metalloporphyrin (P1Zn) were selected to be solubilized in cetyltrimethyl ammonium bromide (CTAB) micellar solutions. By taking advantage of the microenvironment sensitivity of their Soret band, UV-Vis spectra were used to study the dependence of location of the porphyrins in CTAB micellar media on the bulk pH value or the salt concentration of bulk solutions. The red shift of the Soret band, the decrease of its absorbance and the increase of the full width at half-maximum (FWHM) of P1Zn and P1 with pH titration process from neutral to weak basicity were attributed to the transfer process of the porphyrin moiety from the inner core to the outer surface of the micelles. In the pH sensitive area of the Soret band of P1Zn and P1, the blue shift of the Soret band, the increase of its absorbance and decrease of FWHM

关键词： amphiphilic porphyrin micelle trans-membrane.

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基于重型商用车的OTA技术应用

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汽车实用技术 2024年第16期49卷 44-50页

作者：李维晋罗鹏飞王琛博张犇常海龙袁广杰陕西重型汽车有限公司陕西西安710200

随着车联网、智能网联技术的快速发展,以及车辆电子化水平的日益增长,空中下载(OTA)技术将逐渐成为汽车行业功能升级、故障修复的重要手段。文章旨在探讨基于重型商用车的OTA技术应用,重点介绍基于重型商用车的OTA系统方案、关键技术,... 详细信息

随着车联网、智能网联技术的快速发展,以及车辆电子化水平的日益增长,空中下载(OTA)技术将逐渐成为汽车行业功能升级、故障修复的重要手段。文章旨在探讨基于重型商用车的OTA技术应用,重点介绍基于重型商用车的OTA系统方案、关键技术,并根据未来重型商用车在电子电器架构升级、软件定义汽车等方向的发展,得出OTA技术将在重型商用车千人千面、常用常新上发挥更大的作用,具有一定的创新价值。

关键词：重型商用车 OTA技术智能网联技术车联网技术

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Polarizable Additive with Intermediate Chelation Strength for Stable Aqueous Zinc‑Ion Batteries

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Nano-Micro Letters 2024年第5期16卷 41-55页

作者： Yuting Xia Rongao Tong Jingxi Zhang Mingjie Xu Gang Shao hailong Wang Yanhao Dong chang‑An Wang State Key Lab of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084People’s Republic of China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001HenanPeople’s Republic of China

Aqueous zinc-ion batteries are promising due to inherent safety,low cost,low toxicity,and high volumetric ***,issues of dendrites and side reactions between zinc metal anode and the electrolyte need to be solved for extended storage and cycle ***,we proposed that an electrolyte additive with an intermediate chelation strength of zinc ion—strong enough to exclude water molecules from the zinc metal-electrolyte interface and not too strong to cause a significant energy barrier for zinc ion dissociation—can benefit the electrochemical stability by suppressing hydrogen evolution reaction,overpotential growth,and den-drite ***-sodium diethylene-triaminepentaacetic acid salt was selected for such a *** has a suitable chelating ability in aqueous solutions to adjust solvation sheath and can be readily polarized under electrical loading conditions to further improve the ***||Zn symmetric cells can be stably operated over 3500 h at 1 mA cm^(-2).Zn||NH4V4O10 full cells with the additive show great cycling stability with 84.6%capacity retention after 500 cycles at 1 A g^(-1).Since the additive not only reduces H2 evolution and corrosion but also modifies Zn2+diffusion and deposition,highlyreversible Zn electrodes can be achieved as verified by the experimental *** work offers a practical approach to the logical design of reliable electrolytes for high-performance aqueous batteries.

关键词： Aqueous zinc-ion batteries Electrolyte additives DTPA-Na Chelation strength

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Morphological and Sulfur-Isotopic Characteristics of Pyrites in the Deep Sediments from Xisha Trough,South China Sea

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Journal of Ocean University of China 2024年第1期23卷 138-148页

作者： chang Jingyi LIU Yujia LU hailong LU Jing’an SU Xin YE Jianliang XIE Wenwei College of Engineering Peking UniversityBeijing 100871China Beijing International Center for Gas Hydrate School of Earth and Planetary SciencesPeking UniversityBeijing 100871China School of Marine Science Nanjing University of Information Science and TechnologyNanjing 210044China MLR Key Laboratory of Marine Mineral Resources Guangzhou Marine Geological SurveyMinistry of Land and ResourcesGuangzhou 510075China School of Ocean Sciences China University of GeosciencesBeijing 100083China

Pyrite is one of the common authigenic minerals in marine *** studies have shown that the morphological and isotopic characteristics of pyrite are closely related to the geochemical environment where it is *** better understand the for-mation mechanism of authigenic pyrite,we analyzed the isotopic composition,morphology,and distribution of pyrite in the sediment at 500m below the seafloor from Xisha Trough,South China *** morphologies were observed by scanning electron micros-copy and Raman spectrography.X-Ray computed tomography was applied to measure the particle size of *** size of pyrite crystals in the matrix sediment mainly ranged between 25 and 65µm(***.40µm),although crystals were larger(***.50μm)in the *** pyrites had a fine-grained truncated octahedral shape with occasionally well-developed growth steps,which implies the low growth rate and weak anaerobic oxidation of methane-sulfate reduction when pyrite was ***δ^(34)S values of pyrites ranged from+20.8‰Vienna-defined Canyon Diablo Troilite(V-CDT)to+33.2‰V-CDT and from+44.8‰V-CDT to+48.9‰,which suggest two growth *** the first stage,with the continuous low methane flux,the pyrite possibly formed in an environment with good access to *** the second stage,the pyrites mainly developed in sediment fractures and appeared in veins,probably due to the limited availability of *** less exposure of pyrite to the environment in the second stage was probably caused by sediment accumulation or *** this study,an episodic pyritization process was identified,and the paleoenvironment was reconstructed for the sediment investigated.

关键词： pyrite sulfur isotope AOM methane flux Xisha Trough South China Sea

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全国甘蔗杂交制种基地土壤养分状况评价

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甘蔗糖业 2024年第1期53卷 14-20页

作者：杨欣妍刘壮沈大春和锐敏林明江常海龙卢颖林广东省科学院南繁种业研究所/广东省药肥工程技术研究中心广东广州510316

综合分析土壤养分含量,对甘蔗精准施肥及地力提升具有重要作用。2022年2月在广东省科学院南繁种业研究所全国甘蔗杂交制种基地共采集10份样品进行土壤养分测定分析。结果表明:①基地土壤pH均值为6.06,处于弱酸水平;有机质和全氮含量均... 详细信息

综合分析土壤养分含量,对甘蔗精准施肥及地力提升具有重要作用。2022年2月在广东省科学院南繁种业研究所全国甘蔗杂交制种基地共采集10份样品进行土壤养分测定分析。结果表明:①基地土壤pH均值为6.06,处于弱酸水平;有机质和全氮含量均值分别为19.39、0.95 g/kg,总体处于缺乏水平;总磷含量均值为0.8g/kg,处于适中水平;有效磷和全钾均值分别为28.29、30.6mg/kg,总体处于丰富水平;碱解氮和速效钾变异系数较大,空间分布不均匀,总体处于丰富水平;②重金属砷、镉、铜、铅、汞、镍、锌含量均未超过风险筛选值;③土壤pH值与全氮、碱解氮、总磷、有效磷、钙呈显著正相关关系,与钼呈显著负相关关系;有机质与全氮、碱解氮、总磷、有效磷、钙呈显著正相关性;全氮与碱解氮、总磷、有效磷、钙呈显著正相关性;碱解氮与有效磷、速效钾、钙呈显著正相关;有效磷与速效钾、钙呈显著正相关性。综上,建议基地注重土壤酸化治理,适当增施有机肥,合理施用氮磷钾肥及矿质元素肥,进一步提高甘蔗产量和质量。

关键词：甘蔗土壤养分植株养分相关性

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Revolving Corrosion Experiments of SIMP Steel in LBE at 450 ℃

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IMP & HIRFL Annual Report 2018年第1期 88-89页

作者： Zhang Hongpeng Wang Zhiguang Yao Cunfeng chang hailong Ma Zhiwei 不详

Lead-bismuth eutectic(LBE)was one of primary candidate materials for coolant in advanced nuclear reactors,such as accelerator driven system(ADS)and fast neutron reactor,due to its low melting point,low reactivity,low vapor pressure,low viscosity and fast heat removal,etc[1;2].However,it is known that severe corrosion occurs in the presence of liquid Lead-bismuth eutectic alloy,especially at high ***,the selection of the structural material exposed to LBE is an extremely complex problem and compatibility tests are required.

关键词： temperature. eutectic corrosion

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Corrosion Tests of Ti_(3)SiC_(2) in Liquid Pb

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IMP & HIRFL Annual Report 2018年第1期 91-92页

作者： Ma Zhiwei Wang Zhiguang Yao Cunfeng Zhang Hongpeng chang hailong 不详

Ti_(3)SiC_(2)is considered as one of the candidates for pump impellers and as coating material on steel surfaces in heavy liquid metal cooled fast reactors because it resists oxygen and has high temperature *** is a ternary ceramic which combines metallic and ceramic *** has a high thermal strength,high melting point and high chemical resistance typical of *** service temperature in air is limited to 1000℃[1-3].Like ametal,Ti3SiC2 resists thermal shock and has excellent electrical and thermal ***,it is creep as well as fatigue resistant and readily ***,it cannot be welded and,compared with binary carbide ceramics like WC and TiC,it is relatively soft and not wear resistant[3].

关键词： Ti_(3)SiC_(2) welded creep

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Beneficial Effect of Grain Refinement on the Oxidation Resistance of T91 Steel to Liquid Lead-bismuth Eutectic

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IMP & HIRFL Annual Report 2022年第1期 99-100页

作者： Ma Zhiwei Wang Zhiguang Shen Tielong Zhou Ting chang hailong 不详

The performance degradation of structural materials caused by corrosion of the coolant lead-bismuth eutectic(LBE)alloy has become one of the most serious challenges facing the construction of lead-cooled fast reactors^([1􀀀3]).Grain re nement is a way to improve the corrosion resistance of steels[4-8].However,its e ect on the LBE corrosion behavior of steels is still very little *** this study.

关键词： corrosion alloy eutectic

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