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Antagonistic MADS-box transcription factors SEEDSTICK and SEPALLATA3 form a transcriptional regulatory network that regulates seed oil accumulation

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Journal of Integrative Plant Biology 2024年第1期66卷 121-142页

作者： Shuangcheng He yuanchang Min Zijin Liu Fang Zhi Rong Ma Ankang Ge Shixiang Wang yu Zhao Danshuai Peng Da Zhang Minshan Jin Bo Song jianjun Wang yuan Guo Mingxun Chen State Key Laboratory for Crop Stress Resistance and High‐Efficiency Production National Yangling Agricultural Biotechnology&Breeding CenterShaanxi Key Laboratory of Crop HeterosisCollege of AgronomyNorthwest A&F UniversityYangling 712100China State Key Laboratory for Crop Stress Resistance and High‐Efficiency Production Shaanxi Key Laboratory of AppleCollege of HorticultureNorthwest A&F UniversityYangling 712100China

Transcriptional regulation is essential for balancing multiple metabolic pathways that influence oil accumulation in *** far,the transcriptional regulatory mechanisms that govern seed oil accumulation remain largely ***,we identified the transcriptional regulatory network composed of MADS-box transcription factors SEEDSTICK(STK)and SEPALLATA3(SEP3),which bridges several key genes to regulate oil accumulation in *** found that STK,highly expressed in the developing embryo,positively regulates seed oil accumulation in Arabidopsis(Arabidopsis thaliana).Furthermore,we discovered that SEP3 physically interacts with STK in vivo and in *** oil content is increased by the SEP3 mutation,while it is decreased by SEP3 *** chromatin immunoprecipitation,electrophoretic mobility shift assay,and transient dual-luciferase reporter assays showed that STK positively regulates seed oil accumulation by directly repressing the expression of MYB5,SEP3,and SEED FATTY ACID REDUCER 4(SFAR4).Moreover,genetic and molecular analyses demonstrated that STK and SEP3 antagonistically regulate seed oil production and that SEP3 weakens the binding ability of STK to MYB5,SEP3,and ***,we demonstrated that TRANSPARENT TESTA 8(TT8)and ACYL-ACYL CARRIER PROTEIN DESATURASE 3(AAD3)are direct targets of MYB5 during seed oil accumulation in ***,our findings provide the transcriptional regulatory network antagonistically orchestrated by STK and SEP3,which fine tunes oil accumulation in seeds.

关键词： seed oil accumulation SEP3 STK transcription factor transcriptional regulation

实验演示100 Gbaud Delta-Sigma调制信号O波段传输

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光学学报 2023年第20期43卷 67-73页

作者：杨雄伟魏怡龙健宇余建军复旦大学信息科学与工程学院通信科学与工程系上海200433

为了解决传输高阶正交幅度调制(QAM)信号时的非线性损伤问题,提出了一种基于Delta-Sigma调制(DSM)的高阶QAM传输系统。通过采用1-bit量化的DSM,成功将携带有高阶QAM的离散多音调制(DMT)信号量化编码为开关键控(OOK)信号,实现了高阶QAM... 详细信息

为了解决传输高阶正交幅度调制(QAM)信号时的非线性损伤问题,提出了一种基于Delta-Sigma调制(DSM)的高阶QAM传输系统。通过采用1-bit量化的DSM,成功将携带有高阶QAM的离散多音调制(DMT)信号量化编码为开关键控(OOK)信号,实现了高阶QAM信号在O波段强度调制/直接检测(IM/DD)系统中的传输。由于DSM拥有较高的量化信噪比,系统最高支持满足软判决2.4×10-2阈值的4096QAM信号的传输。特别地,通过采用预均衡技术,成功实现了50/100 Gbaud DSM信号分别在O波段的50/15 km的传输。实验演示了高速DSM信号在O波段的传输系统,为高阶QAM信号在IM/DD链路的传输提供了解决方案,同时也为未来基于DSM技术的高速移动前传方案设计提供了参考。

关键词：光通信 Delta-Sigma调制移动前传强度调制/直接检测

W-band radio-over-fiber transmission system with delta-sigma modulation and direct detection

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Chinese Optics Letters 2023年第4期21卷 9-13页

作者：雎洲刘家轩余建军 Key Laboratory for Information Science of Electromagnetic Waves(MoE) Fudan UniversityShanghai 200433China

We experimentally built a W-band photonics-aided millimeter-wave radio-over-fiber transmission system and demonstrated the delivery of up to 8192-ary quadrature amplitude modulation[QAM] *** multitone signals are converted into 1-bit data streams through delta-sigma modulation and then modulated onto a 76.2 GHz *** envelope detector is used at the receiver side for direct *** results prove that our proposed system can support 2048QAM and 8192QAM transmission while meeting the hard decision forward error correction threshold of 3.8×10^(-3)and the soft decision forward error correction threshold of 4.2×10^(-2),*** believe this cost-effective scheme is a promising candidate for future high-order QAM millimeter-wave downlink transmission.

关键词： radio-over-fiber millimeter-wave transmission W-band delta-sigma modulation direct detection photonicsaided technique

Photonics 60 GBaud PDM-16QAM fiber-wireless 2×2 MIMO delivery at THz-band

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中国光学快报:英文版 2023年第7期21卷 79-85页

作者：李韦萍余建军朱博文张教朱敏王晨周雯谢堂尧余建国赵峰 Key Laboratory for Information Science of Electromagnetic Waves(MoE) Fudan UniversityShanghai 200433China Purple Mountain Laboratories Nanjing 211111China Beijing University of Posts and Telecommunications Beijing 100876China Xi’an University of Posts and Telecommunications Xi’an 710121China

The terahertz photonics technique has bright application prospects in future sixth-generation(6G)broadband *** this study,we have experimentally demonstrated a photonics-assisted record-breaking net bit rate of 417 Gbit/s per wavelength signals delivery in a fiber-wireless converged communication system supported by advanced digital-signalprocessing(DSP)algorithms and a polarization multiplexing-based multiple-input multiple-output(MIMO)*** the experiment,up to 60 GBaud(480 Gbit/s)polarization-division-multiplexing 16-ary quadrature-amplitude-modulation(PDM16QAM)signals are transmitted over 20 km fibers and 3 m wireless 2×2 MIMO links at 318 GHz with the bit error rate(BER)under 1.56×10^(−2).It is the first demonstration to our knowledge of signals delivery exceeding 400 Gbit/s per wavelength in a photonics-assisted fiber-wireless converged 2×2 MIMO communication system.

关键词： terahertz photonics technique fiber-wireless converged communication digital signal processing THz-band photonics-assisted technique

ChatGPT时代下基于深度自编码网络的企业内部审计智能预警——以往来款项审计为例

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系统工程理论与实践 2024年第1期44卷 316-337页

作者：程平喻畅王健俊重庆理工大学云会计大数据智能研究所重庆400054 浙江吉利汽车有限公司财务中心余姚315400 余姚领克汽车部件有限公司财务部管理会计科余姚315400

以ChatGPT为代表的生成式人工智能技术被誉为第二次信息革命,其强大的数据深入分析能力为企业智能化内部审计提供了新思路.针对现有审计风险预警中传统机器学习泛化能力提升有限以及特征分析维度不足等问题,提出一种基于ChatGPT技术内... 详细信息

以ChatGPT为代表的生成式人工智能技术被誉为第二次信息革命,其强大的数据深入分析能力为企业智能化内部审计提供了新思路.针对现有审计风险预警中传统机器学习泛化能力提升有限以及特征分析维度不足等问题,提出一种基于ChatGPT技术内核的深度自编码网络方法,来对往来款项这一重要会计活动中的风险做出事前判别.首先,根据影响因素从业务匹配、期限结构、减值损失、关联交易、单体统计和文本信息多个角度筛选提取审计特征;随后,考虑到风险样本的不平衡性以及业财指标在经营周期下的前后时变特性,基于无监督和深度学习思想,构建了以添加注意力机制双向长短期记忆(Bi-LSTM)作为神经网络的深度自编码器(DAE)预训练模型,并借鉴多任务学习思想,利用融合模型迁移的集成框架量化审计风险概率以保证预警的稳定性;最后,通过大数据技术采集企业往来业务和财务的真实数据对上述方法进行了多方面对比验证.试验结果表明,该方法有助于不同预警时间窗口下审计特征的高效精准挖掘,相较常用的监督学习和迭代聚类法能显著提升审计风险预警的精度和鲁棒性,同时能识别出导致风险产生的关键因素以快速定位审计疑点,为企业改善内部审计的质量和效率提供智能化决策支持.

关键词：深度自编码器内部审计风险预警应收及应付账款智能审计

Dual-services generation using an integrated polarization multiplexing modulator

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Chinese Optics Letters 2020年第11期18卷 27-31页

作者：赵峰余建军李静玲 School of Electronic Engineering Xi’an University of Posts and TelecommunicationsXi'an 710121China

We proposed and demonstrated a new scheme for simultaneous generation of independent wired and wireless signals employing an integrated polarization multiplexing modulator. In the experimental system, a 10 Gb/s wired signal is imposed on the original optical carrier with one polarization, while a wireless signal with a bit rate larger than 4 Gb/s is carried on the generated millimeter wave of 76.44 GHz, which has polarization orthogonal to the wired signal. The dual services are successfully delivered over a 15 km standard single mode fiber;the power penalties of the wired and wireless signals are around 0.4 d B and 1.5 dB, respectively.

关键词： millimeter wave dual-parallel Mach-Zehnder modulator radio-over-fiber

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光子辅助的宽带太赫兹通信技术

通信学报 2022年第1期43卷 11-23页

作者：余建军周雯王心怡王凯辉复旦大学信息科学与工程学院上海200433

首先,介绍了光子辅助的宽带太赫兹通信系统中的关键技术。然后,介绍了大容量和长距离太赫兹无线和有线通信技术方面的研究进展。采用这些关键技术,先后实现了太赫兹信号超过1 Tbit/s的无线传输,以及超过100 Gbit/s太赫兹信号在无太赫兹... 详细信息

首先,介绍了光子辅助的宽带太赫兹通信系统中的关键技术。然后,介绍了大容量和长距离太赫兹无线和有线通信技术方面的研究进展。采用这些关键技术,先后实现了太赫兹信号超过1 Tbit/s的无线传输,以及超过100 Gbit/s太赫兹信号在无太赫兹放大器的情况下无线传输54.6 m。最后,介绍了采用空芯光纤进行有线传输超过100 Gbit/s的太赫兹信号。

关键词：多输入多输出多维复用技术概率整形技术太赫兹空芯光纤

同方期刊数据库博看期刊评论

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考虑单向转运的双渠道供应链库存合作策略

工业工程与管理 2023年第4期28卷 178-186页

作者：余建军王俐茜华南理工大学工商管理学院广东广州510640

研究了允许由实体零售商向制造商在线直销渠道单向转运下双方的订货决策问题。基于非合作静态博弈理论,确定了分散决策下双方的最优订货量,并进一步分析了批发价格、转运价格、转运成本和单位直销成本对均衡的影响。研究表明:考虑单向... 详细信息

研究了允许由实体零售商向制造商在线直销渠道单向转运下双方的订货决策问题。基于非合作静态博弈理论,确定了分散决策下双方的最优订货量,并进一步分析了批发价格、转运价格、转运成本和单位直销成本对均衡的影响。研究表明:考虑单向转运可以提升双方的利润,制造商直销渠道在合作中将减少订货量,实体零售商将增大订货量。存在一个最优的转运价格使得供应链整体利润最大,单纯依赖转运价格无法实现协调,而将转运价格与本文所提出的批发价格折扣相结合可实现供应链协调,制造商向实体零售商收取一定的费用可实现双赢。

关键词：双渠道供应链随机需求转运订货决策

Effectiveness and safety of combined nimotuzumab and S-1 chemotherapy with concurrent radiotherapy for locally advanced esophageal cancer in malnourished and elderly patients:A prospective phaseⅡstudy

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Chinese Journal of Cancer Research 2024年第3期36卷 270-281页

作者： Guojie Feng Jiao Li Nuo yu Ziyu Zheng Xiongtao Yang Lei Deng Tao Zhang Wenqing Wang Wenyang Liu Jianyang Wang Qinfu Feng Jima Lyu Zefen Xiao Zongmei Zhou Nan Bi jianjun Qin Xin Wang Department of Radiation Oncology National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100021China Department of Thoracic Surgery National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100021China

Objective:Definitive chemoradiotherapy(dCRT)is the standard treatment for unresectable locally advanced esophageal ***,this treatment is associated with substantial toxicity,and most malnourished or elderly patients are unable to complete this ***,there is a need for a more suitable radiotherapy combination regimen for this *** study was aimed to evaluate the efficacy and safety of a combination regimen comprising chemotherapy with nimotuzumab and S-1 and concurrent radiotherapy for patients with fragile locally advanced esophageal cancer with a high Nutritional Risk Screening 2002(NRS-2002)***:Eligible patients with unresectable esophageal carcinoma who had an NRS-2002 score of 2 or higher were *** were treated with S-1 and nimotuzumab with concurrent radiotherapy,followed by surgery or definitive *** primary endpoint was the locoregional control(LRC)***:A total of 55 patients who met the study criteria were *** completion of treatment,surgery was performed in 15 patients and radiotherapy was continued in 40 *** median follow-up period was 33.3[95%confidence interval(95%CI,31.4−35.1)]*** LRC rate was 77.2%(95%CI,66.6%−89.4%)at 1 year in the entire *** overall survival(OS)rate and event-free survival(EFS)rate were 57.5%and 51.5%at 3 years,*** was associated with better LRC[hazard ratio(HR)=0.16;95%CI,0.04−0.70;P=0.015],OS(HR=0.19;95%CI,0.04−0.80;P=0.024),and EFS(HR=0.25;95%CI,0.08−0.75;P=0.013).Most adverse events were of grade 1 or 2,and no severe adverse events ***:For malnourished or elderly patients with locally advanced esophageal cancer,radiotherapy combined with nimotuzumab and S-1 is effective and has a good safety profile.

关键词： Esophageal carcinoma squamous cell carcinoma nutritional risk score nimotuzumab S-1 definitive chemoradiotherapy