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NaCl Facilitates Cell Wall Phosphorus Reutilization in Abscisic Acid Dependent Manner in Phosphorus Deficient Rice Root

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Rice science 2023年第2期30卷 138-147页

作者： yang xiaozheng LIU Yusong HUANG Jing TAO Ye WANG Yifeng SHEN Renfang ZHU Xiaofang State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of ScienceNanjing 210008China University of Chinese Academy of Sciences Beijing 100049China College of Land Resources and Environment Jiangxi Agricultural UniversityNanchang 330045China State Key Laboratory of Rice Biology China National Rice Research InstituteHangzhou 311400China

Phosphorus(P) starvation in rice facilitates the reutilization of root cell wall P by enhancing the pectin content. NaCl modulates pectin content, however, it is still unknown whether NaCl is also involved in the process of pectin regulated cell wall P remobilization in rice under P starved conditions. In this study, we found that 10 mmol/L NaCl increased the shoot and root biomasses under P deficiency to a remarkable extent, in company with the elevated shoot and root soluble P contents in rice. Further analysis indicated that exogenous NaCl enhanced the root cell wall P mobilization by increasing the pectin methylesterase activity and uronic acid content in pectin suggesting the involvement of NaCl in the process of cell wall P reutilization in P starved rice roots. Additionally, exogenous NaCl up-regulated the expression of P transporter OsPT6, which was induced by P deficiency, suggesting that NaCl also facilitated the P translocation prominently from root to shoot in P starved rice. Moreover, exogenous abscisic acid(ABA) can reverse the NaCl-mediated mitigation under P deficiency, indicating the involvement of ABA in the NaCl regulated root cell wall P reutilization. Taken together, our results demonstrated that NaCl can activate the reutilization of root cell wall P in P starved rice, which is dependent on the ABA accumulation pathway.

关键词： abscisic acid cell wall NaCl phosphorus transporter phosphorus deficiency remobilization

High performance receiving and processing technology in satellite beam hopping communication

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Journal of Systems Engineering and Electronics 2024年第4期35卷 815-828页

作者： ZHAI Shenghua HUI Tengfei GONG Xianfeng ZHANG Zehui GAO xiaozheng yang Kai School of Communication Engineering Xi’Dian UniversityXian 710126China CAST(China Academy of Space Technology)-Xi’an Institute of Space Radio Technology Xi’an 710010China School of Cyberspace Science and Technology Beijing Institute of TechnologyBeijing 100081China School of Information and Electronics Beijing Institute of TechnologyBeijing 100081China

Beam-hopping technology has become one of the major research hotspots for satellite communication in order to enhance their communication capacity and ***,beam hopping causes the traditional continuous time-division multiplexing signal in the forward downlink to become a burst signal,satellite terminal receivers need to solve multiple key issues such as burst signal rapid synchronization and high-per-formance ***,this paper analyzes the key issues of burst communication for traffic signals in beam hopping sys-tems,and then compares and studies typical carrier synchro-nization algorithms for burst ***,combining the requirements of beam-hopping communication systems for effi-cient burst and low signal-to-noise ratio reception of downlink signals in forward links,a decoding assisted bidirectional vari-able parameter iterative carrier synchronization technique is pro-posed,which introduces the idea of iterative processing into car-rier *** at the technical characteristics of communication signal carrier synchronization,a new technical approach of bidirectional variable parameter iteration is adopted,breaking through the traditional understanding that loop struc-tures cannot adapt to low signal-to-noise ratio burst ***,combining the DVB-S2X standard physical layer frame format used in high throughput satellite communication systems,the research and performance simulation are *** results show that the new technology proposed in this paper can significantly shorten the carrier synchronization time of burst signals,achieve fast synchronization of low signal-to-noise ratio burst signals,and have the unique advantage of flexible and adjustable parameters.

关键词： beam-hopping high throughput satellite high per-formance reception processing

Polyoxometalate-based flexible conductive materials with superionic conductivity

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Science China Chemistry 2024年第10期67卷 3299-3309页

作者： Yuxin Wang Shuping Xue Jun Geng Ying Lu Teng Li xiaozheng Duan Xue Bai Yanli yang Jingqi yang Shuxia Liu Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education College of ChemistryNortheast Normal UniversityChangchun 130024China State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China

Flexible ion-conductive materials exhibit intriguing advantages for applications in flexible electronic ***,the further enhancement of their conductivity within environmental limitations is an urgent demand for the development of flexible electronic devices,yet remains as a great ***,we report a“dual-acid”strategy,via the encapsulation of two acids,H_(3)PW_(12)O_(40)(HPW) and NH_(2)SO_(3)H(SA),with synergistic interaction into poly(vinyl alcohol)-glycerol(PVA-Gly) hydrogel,to achieve polyoxometalate(POM)-based flexible materials with superionic conductivity under various environmental *** a representative example,the prepared PVA-Gly/HPW-SA-20% hydrogel presents an ultrahigh proton conductivity ranging from -30℃(3.33×10^(-2)S cm^(-1)) to room temperature(2.78×10^(-1)S cm^(-1)) under ambient ***,the PVA-Gly/HPW-SA-20% hydrogel exhibits remarkable advantages in anti-freezing,mechanical flexibility and self-adhesiveness,making it a promising multifunctional electrolyte for flexible electronic *** experimental results and molecular dynamics(MD) simulations jointly demonstrate that SA bridges HPW clusters to form a dense proton transport pathway induced by multiple electrostatic and hydrogen bonding interactions between SA and HPW counterparts,which contributes to the high-level proton conductivity of the PVA-Gly/HPW-SA-20% *** work provides new insights into the design of POM-based flexible materials with superionic conductivity.

关键词： polyoxometalates proton conduction dual-acid effect hydrogel molecular dynamics simulation

Endo-PLIF治疗腰椎退行性疾病的临床效果

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青岛大学学报（医学版） 2024年第4期60卷 578-582页

作者：双鸥蔡子军张光远廖龙腾杨小政汪文玉上饶市人民医院(南昌大学附属上饶医院)骨科江西上饶334000

目的评价在全脊柱内镜下经椎板间隙入路腰椎减压椎间融合内固定术(Endo-PLIF)治疗退变性腰椎疾病的临床效果。方法2022年1月—2023年1月,上饶市人民医院共择期手术治疗退行性腰椎疾病病人94例,对其临床资料进行回顾性分析。依据手术类... 详细信息

目的评价在全脊柱内镜下经椎板间隙入路腰椎减压椎间融合内固定术(Endo-PLIF)治疗退变性腰椎疾病的临床效果。方法2022年1月—2023年1月,上饶市人民医院共择期手术治疗退行性腰椎疾病病人94例,对其临床资料进行回顾性分析。依据手术类型分为Endo-PLIF组35例、经椎间孔入路腰椎椎间融合术(MIS-TLIF)组28例和椎间盘镜辅助下经椎间孔椎间融合术(MED-TLIF)组31例。比较3组病人手术时间、术中出血量、住院时间、改良Oswestry功能障碍指数问卷表(ODI)评分、疼痛视觉模拟评分、腰椎局部后凸角以及术后并发症等临床疗效评价指标。结果各组病人术中出血量、住院时间和手术时间等指标比较,差异均有统计学意义(F=5.735~164.274,P0.05);3组术后1及6月两评分均显著低于术前(F=88.493~636.184,P0.05)。3组术后并发症发生率比较,差异无显著意义(P>0.05)。结论Endo-PLIF手术视野更稳定,能更好地保护脊柱结构,减少术中出血量与住院时间,降低功能障碍及术后疼痛程度,提高手术疗效,促进术后康复,值得临床推广应用。

关键词：腰腿痛椎间盘退行性变椎管狭窄脊椎滑脱内窥镜检查脊柱融合术治疗结果

Atomically dispersed Fe sites on hierarchically porous carbon nanoplates for oxygen reduction reaction

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Journal of Energy Chemistry 2024年第3期90卷 7-15,I0002页

作者： Ruixue Zheng Qinglei Meng Hao Zhang Teng Li Di yang Li Zhang Xiaolong Jia Changpeng Liu Jianbing Zhu xiaozheng Duan Meiling Xiao Wei Xing State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022JilinChina School of Applied Chemistry and Engineering University of Science and Technology of ChinaHefei 230026AnhuiChina Laboratory of Advanced Power Sources Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022JilinChina Institute of Functional Nano&Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials&DevicesJiangsu Key Laboratory of Advanced Negative Carbon TechnologiesSoochow UniversitySuzhou 215123JiangsuChina State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022JilinChina

Developing cost-effective,robust and stable non-precious metal catalysts for oxygen reduction reaction(ORR) is of paramount importance for electrochemical energy conversion devices such as fuel cells and metal-air *** Fe-N-C single atom catalysts(SACs) have been hailed as the most promising candidate due to the optimal binding strength of ORR intermediates on the Fe-N_(4) sites,they suffer from serious mass transport limitations as microporous templates/substrates,i.e.,zeolitic imidazolate frameworks(ZIFs),are usually employed to host the active *** by this challenge,we herein develop a hydrogen-bonded organic framework(HOF)-assisted pyrolysis strategy to construct hierarchical micro/mesoporous carbon nanoplates for the deposition of atomically dispersed Fe-N_(4) *** a design is accomplished by employing HOF nanoplates assembled from 2-aminoterephthalic acid(NH_(2)-BDC) and p-phenylenediamine(PDA) as both soft templates and C,N *** from the structural merits inherited from HOF templates,the optimized catalyst(denoted as Fe-N-C SAC-950) displays outstanding ORR activity with a high half-wave potential of 0.895 V(*** hydrogen electrode(RHE)) and a small overpotential of 356 mV at 10 mA cm^(-2) for the oxygen evolution reaction(OER).More excitingly,its application potential is further verified by delivering superb rechargeability and cycling stability with a nearly unfading charge-discharge gap of 0.72 V after 160 *** dynamics(MD) simulations reveal that micro/mesoporous structure is conducive to the rapid mass transfer of O_(2),thus enhancing the ORR *** situ Raman results further indicate that the conversion of O_(2) to~*O_(2)-the rate-determining step(RDS) for Fe-N-C *** work will provide a versatile strategy to construct single atom catalysts with desirable catalytic properties.

关键词： Fe single atom catalysts Oxygen reduction reaction Mesoporous structure Active sites Zinc-air battery

Ultra-homogeneous dense Ag nano layer enables long lifespan solid-state lithium metal batteries

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Journal of Energy Chemistry 2024年第9期96卷 110-119页

作者： Yaning Liu Tianqi yang Ruyi Fang Chengwei Lu Ruojian Ma Ke Yue Zhen Xiao xiaozheng Zhou Wenkui Zhang Xinping He Yongping Gan Jun Zhang Xinhui Xia Hui Huang Xinyong Tao yang Xia College of Materials Science and Engineering Zhejiang University of TechnologyHangzhou 310014ZhejiangChina Key Laboratory of Rare Earth Optoelectronic Materials and Devices of Zhejiang Province Institute of Optoelectronic Materials and DevicesChina Jiliang UniversityHangzhou 310018ZhejiangChina

The unstable electrolyte/lithium(Li)anode interface has been one of the key challenges in realizing high energy density solid-state lithium metal batteries(LMBs)***,a dense and uniform silver(Ag)nano interlayer with a thickness of∼35 nm is designed accurately by magnetron sputtering technology to optimize the electrolyte/Li anode *** Ag nano layer reacts with Li metal anode to in-situ form Li-Ag alloy,thus enhancing the physical interfacial contact,and further improving the interfacial wettability and *** particular,the Li-Ag alloy is inclined to form AgLi phase proved by cryo-TEM and DFT,effectively preventing SN from continuously“attacking”the Li metal anode due to the lower adsorption of succinonitrile(SN)molecules on AgLi than that of pure Li metal,thereby significantly reinforcing the interfacial ***,the enhanced physical and chemical stability of electrolyte/Li anode interface promotes the homogeneous deposition of Li^(+)and inhibits the dendrite *** Li-symmetric cell maintains stable operation for up to 1700 h and the cycling stability of LiFePO_(4)|SPE|Li full cell is remarkably improved at room temperature(capacity retention rate of 91.9%for 200 cycles).This work opens an effective way for accurate and controllable interface design of long lifespan solid-state LMBs.

关键词： Silvernano layer Poly(ethylene oxide) Solid polymer electrolyte Succinonitrile Lithium metal battery

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楼外楼,有时更像个文化沙龙

文化交流 2018年第8期 22-25页

作者：杨晓政

西湖醋鱼、龙井虾仁、罗汉大虾、东坡焖肉、一品豆腐、栗子炒鸡这些养眼又美味的菜品,在今年初夏CCTV-1黄金档热播的电视剧《楼外楼》中频频出现.拍大戏上央视播放,杭州西湖边的这家楼外楼,投了多少广告费?除了配合提供场地、厨师、美... 详细信息

西湖醋鱼、龙井虾仁、罗汉大虾、东坡焖肉、一品豆腐、栗子炒鸡这些养眼又美味的菜品,在今年初夏CCTV-1黄金档热播的电视剧《楼外楼》中频频出现.拍大戏上央视播放,杭州西湖边的这家楼外楼,投了多少广告费?除了配合提供场地、厨师、美食之外,楼外楼并没有支付1分钱.那么,楼外楼上央视,是不是'你若盛开,蝴蝶自来'?

关键词：西湖醋鱼龙井虾仁工匠精神历史名人芥川龙之介周振天文化沙龙

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开茶时节品茶宴

Optimal scheduling of virtual power plants that ignore the cost of battery loss

文化交流 2009年第5期 18-21页

作者：杨晓政

开茶节的T型台搭到茶园里'溪水清清溪水长,溪水两岸好呀么好风光.哥哥呀,你上畈下畈勤插秧,姐妹呀,东山西山采茶忙;插秧插得喜洋洋,采茶采得心花放……'

关键词：溪水插秧采茶西山姐妹茶园

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Optimal scheduling of virtual power plants that ignore the c...