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Fine mapping of two recessive genes TaFLA1 and TaSPL8 controlling flag leaf angle in bread wheat

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The Crop Journal 2024年第4期12卷 1159-1167页

作者： Qiushi wang Jiaxing Bai Hongchun Xiong Yongdun Xie chaojie wang Jiayu Gu Linshu Zhao Huiyuan Li Jinfeng Zhang Shirong Zhao Yuping Ding Zhengwu Fang Huijun Guo Luxiang Liu College of Agriculture Yangtze University/MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River(Co-Construction by Ministry and Province)Jingzhou 434000HubeiChina State Key Laboratory of Crop Gene Resources and Breeding/National Engineering Laboratory of Crop Molecular Breeding/CAEA Research and Development Centre on Nuclear Technology Applications for Irradiation Mutation Breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China

Flag leaf angle is one of the key target traits in high yield wheat breeding.A smaller flag leaf angle reduces shading and enables plants to grow at a higher density,which increases *** we identified a mutant,je0407,with an 84.34%-89.35%smaller flag leaf angle compared with the wild *** mutant also had an abnormal lamina joint and no ligule or *** analysis indicated that the ligule was controlled by two recessive genes,which were mapped to chromosomes 2AS and *** mutant allele on chromosome 2AS was named Tafla1b,and it was fine mapped to a 1 Mb physical *** mutant allele on chr.2DL was identified as Taspl8b,a novel allele of TaSPL8 with a missense mutation in the second exon,which was used to develop a cleaved amplified polymorphic sequence marker.F3 and F4 lines derived from crosses between Jing411 and je0407 were genotyped to investigate interactions between the Tafla1b and Taspl8b *** with the Tafla1b/Taspl8a genotype had 58.41%-82.76%smaller flag leaf angles,6.4%-24.9%shorter spikes,and a greater spikelet density(0.382 more spikelets per cm)compared with the wild *** with the Tafla1a/Taspl8b genotype had 52.62%-82.24%smaller flag leaf angles and no differences in plant height or spikelet density compared with the wild ***1b/Taspl8b plants produced erect leaves with an abnormal lamina *** two alleles had dosage effects on ligule formation and flag leaf angle,but no significant effect on thousand-grain *** mutant alleles provide novel resources for improvement of wheat plant architecture.

关键词： Wheat Ligule Flag leaf angle Fine mapping Tafla1 Taspl8

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就地固化表层地基承载特性现场试验研究

土木与环境工程学报（中英文） 2024年第3期46卷 9-15页

作者：王颖王朝杰胡振华陈永辉肖洪天山东科技大学交通学院山东青岛266590 山东科技大学土木工程与建筑学院山东青岛266590 河海大学岩土力学与堤坝工程教育部重点实验室南京210098

以浙江省31省道北延线绍兴市区路段地基处理为例,研究两种原位固化地基处理方式(ALLu强力搅拌头搅拌法和国产自制设备与ALLu强力搅拌头联合应用)的适用性及其处理效果,针对两种地基处理方式进行现场平板载荷试验、无侧限抗压强度试验、... 详细信息

以浙江省31省道北延线绍兴市区路段地基处理为例,研究两种原位固化地基处理方式(ALLu强力搅拌头搅拌法和国产自制设备与ALLu强力搅拌头联合应用)的适用性及其处理效果,针对两种地基处理方式进行现场平板载荷试验、无侧限抗压强度试验、标准贯入试验和静力触探试验。为得到就地固化处理后地基应力和地基变形的规律,在地基处理路段布置土压力盒和沉降板进行现场监测试验。试验结果表明:与传统的换填法相比,就地固化处理后的地基承载力提高至少30%;固化养护龄期28 d时,原位固化土的无侧限抗压强度与室内无侧限抗压强度之比在0.35~0.65之间;标准贯入试验和静力触探试验均表明原位固化处理后地基土的强度提高,且计算的地基承载力与平板载荷试验实测结果相差不大,均可以作为就地浅层固化地基处理技术的检测指标;对两组路段的应力和附加应力系数进行分析发现,经原位固化形成的人工硬壳层具有较好的扩散应力作用。

关键词：道路工程地基处理就地固化静载试验地基承载力

维普期刊数据库博看期刊

2~6 GHz 100 W高效率平衡式功率放大器的研制

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电子科技大学学报 2024年第1期53卷 8-13页

作者：来晋明徐会博李志友倪涛王超杰银军王海龙马晓华西安电子科技大学微电子学院西安710071 中国电子科技集团公司第二十九研究所成都610036 中国电子科技集团公司第十三研究所石家庄050050

为解决传统宽带大功率放大器工作效率低的问题,采用新型电阻电抗连续B/J类功放模式拓展晶体管高效率的输出负载阻抗空间,从而提高宽带功放的漏级输出效率。提出了一款基于0.25μm栅长的氮化镓高电子迁移率晶体管(GaN HEMT)的平衡式功放... 详细信息

为解决传统宽带大功率放大器工作效率低的问题,采用新型电阻电抗连续B/J类功放模式拓展晶体管高效率的输出负载阻抗空间,从而提高宽带功放的漏级输出效率。提出了一款基于0.25μm栅长的氮化镓高电子迁移率晶体管(GaN HEMT)的平衡式功放。该功放将LC匹配网络和切比雪夫阻抗变换器相结合实现GaN HEMT器件宽带输入输出阻抗匹配,并利用3 dB Lange耦合器实现宽带平衡式功率合成。在连续波测试条件下,该平衡式功放在2~6 GHz频带内输出功率大于100 W,漏极效率大于45%,功率增益大于9.0 dB,抗负载失配比优于5:1。

关键词： GaN HEMT 宽带平衡式功率合成功率放大器

儿童错(牙合)畸形合并阻塞性睡眠呼吸暂停综合征的诊疗研究进展

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口腔疾病防治 2024年第5期32卷 388-394页

作者：王超杰温和金欣哲朱亚芬浙江大学医学院附属口腔医院浙江大学口腔医学院浙江省口腔疾病临床医学研究中心浙江省口腔生物医学研究重点实验室浙江大学癌症研究院口腔生物材料与器械浙江省工程研究中心浙江杭州310000

儿童错(牙合)畸形在口腔科较常见,而部分错(牙合)畸形合并有阻塞性睡眠呼吸暂停综合征(obstructive sleep apnea hypopnea syndrome,OSAHS)的儿童常由于缺乏多学科诊疗而未得到恰当的治疗,导致睡眠期间通气异常,影响儿童中枢系统、心血... 详细信息

儿童错(牙合)畸形在口腔科较常见,而部分错(牙合)畸形合并有阻塞性睡眠呼吸暂停综合征(obstructive sleep apnea hypopnea syndrome,OSAHS)的儿童常由于缺乏多学科诊疗而未得到恰当的治疗,导致睡眠期间通气异常,影响儿童中枢系统、心血管发育,甚至产生神经行为问题。儿童OSAHS与上呼吸道结构变窄、面部骨骼和神经肌肉因素相关,与错(牙合)畸形有一定相关性;儿童OSAHS临床表现和病因多样,因此诊断和治疗呈现多学科交叉、个性化和专业化的特点。通过问卷和体格检查能够进行初步筛查,儿童口腔科和耳鼻喉科检查则是发现该疾病的前哨。多导睡眠监测(polysomnography,PSG)是目前诊断的直接方法。儿童OSAHS治疗方法多样,对因腺样体扁桃体肥大引起的OSAHS,以腺样体扁桃体切除术为主;下颌前导装置治疗、上颌扩弓治疗等正畸治疗对合并错(牙合)畸形的OSAHS儿童有较好效果。目前儿童错(牙合)畸形与OSAHS相关性的研究较少,多学科联合疗法可能会提高治愈率但缺乏足够文献证明。未来应进一步阐明OSAHS的发病机制,推进多学科联合治疗的研究,以期通过多学科协作,对于潜在及已发病患者做到早干预、早治疗。

关键词：儿童错(牙合)畸形阻塞性睡眠呼吸暂停低通气综合征睡眠障碍多导睡眠监测腺样体扁桃体切除术多学科诊疗正畸治疗

Mechanism of gas pressure action during the initial failure of coal containing gas and its application for an outburst inoculation

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International Journal of Mining Science and Technology 2023年第12期33卷 1511-1525页

作者： chaojie wang Lutan Liu Xiaowei Li Changhang Xu Kai Li Department of Safety Science and Engineering China University of Petroleum(East China)Qingdao 266580China School of Safety Engineering China University of Mining and TechnologyXuzhou 221116China

Faced with the continuous occurrence of coal and gas outburst(hereinafter referred to as“outburst”)disasters,as a main controlling factor in the evolution process of an outburst,for gas pressure,it is still unclear about the phased characteristics of the coupling process with in situ stress,which induce coal damage and ***,in the work based on the mining stress paths induced by typical outburst accidents,the gradual and sudden change of three-dimensional stress is taken as the background for the mechanical reconstruction of the disaster *** the true triaxial physical experiments are conducted on the damage and instability of coal containing gas under multiple stress ***,the response characterization between coal damage and gas pressure has been clarified,revealing the mechanism of action of gas pressure during the initial failure of *** the main controlling mechanism during the outburst process is elucidated in the coupling process of in situ stress with gas *** results show that during the process of stress loading and unloading,the original gas pressure enters the processes of strengthening and weakening the action ability *** the strengthening effect continues to the period of large-scale destruction of *** mechanical process of gas pressure during the initial failure of coals can be divided into three stages:the enhancement of strengthening action ability,the decrease of strengthening action ability,and the weakening action *** entire process is implemented by changing the dominant action of in situ stress into the dominant action of gas *** failure strength of coals is not only affected by its original mechanical strength,but also by the stress loading and unloading paths,showing a particularly significant *** stages can be divided during outburst inoculation *** is,firstly,the coals suffer from initial damage through the dominant action of in situ stress w

关键词： Coal and gas outburst Outburst mechanism Main controlling mechanism Coal damage Mining stress Dilatation phenomenon

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高湿状态下单板层积材的横纹承压性能

森林与环境学报 2024年第1期44卷 105-111页

作者：王超杰刘嘉敏杨小军孔小慧张航南京林业大学材料科学与工程学院江苏南京210037

重组加工是提高低强度木材结构性能的重要手段,以杨木重组加工的单板层积材为研究对象,从受力方式、承压方向及增强方法等方面研究了高湿状态下单板层积材的全表面、局部表面及尽端局部表面横纹承压性能。结果表明:湿环境对杨木单板层... 详细信息

重组加工是提高低强度木材结构性能的重要手段,以杨木重组加工的单板层积材为研究对象,从受力方式、承压方向及增强方法等方面研究了高湿状态下单板层积材的全表面、局部表面及尽端局部表面横纹承压性能。结果表明:湿环境对杨木单板层积材横纹承压性能影响较大,湿环境下其全表面横纹承压性能为干环境下的33%;杨木单板层积材横纹承压性能主要与其承压位置与承压方向有关,局部横纹承压时受到承压面周围木材纤维的支持作用显著,承压面平行于单板层时其局部承压强度最高,在干燥环境下,分别是尽端局部及全表面横纹承压强度的1.2倍和1.4倍。单板层积材结构是导致不同承压方向横纹承压性能差异的主要原因,承压面垂直于单板层时,单板层积材易过早发生分层或屈曲破坏。湿环境下单板层积材含水率较高材质较软,自攻螺钉支持作用明显,有助于改善其承压性能。杨木单板层积材横纹承压强度对环境湿度较为敏感,在工程应用时应保持环境干燥并使承压面平行于单板层。

关键词：高湿状态单板层积材横纹承压承压方向

基于性别二态性头针疗法构建的可行性分析及展望

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中华中医药杂志 2024年第7期39卷 3558-3563页

作者：王超杰王轩杨文韬崔华程光宇张奇程为平黑龙江中医药大学研究生院哈尔滨150040 黑龙江中医药大学附属第一医院哈尔滨150040

文章分析性别差异的头针疗法构建的可行性,以期完善性别差异化的头针疗法理论,提高临床疗效。从头针疗法的发展及现状,脑性别二态性生理特点和脑源性疾病的性别二态性及头针疗法改进方法三方面探析性别差异头针疗法临床应用的可行性。... 详细信息

文章分析性别差异的头针疗法构建的可行性,以期完善性别差异化的头针疗法理论,提高临床疗效。从头针疗法的发展及现状,脑性别二态性生理特点和脑源性疾病的性别二态性及头针疗法改进方法三方面探析性别差异头针疗法临床应用的可行性。目前头针疗法遇到如何进一步创新发展的问题,头针疗法应考虑两性在脑结构、脑功能以及脑源性疾病等方面存在差异,在选穴、针灸操作及针灸辅助仪器的使用等方面完善性别的差异操作。基于性别二态性的头针疗法可行且必要,它能促进新头针疗法的创新发展,完善头针的基础理论,提高临床疗效水平,有助于头针疗法的推广。

关键词：头针疗法针灸选穴性别二态性脑科学可行性分析展望

Design, synthesis and evaluation of genistein-polyamine conjugates as multi-functional anti-Alzheimer agents

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Acta Pharmaceutica Sinica B 2015年第1期5卷 67-73页

作者： Xin Zhang Jiang wang Chen Hong Wen Luo chaojie wang Key Laboratory of Natural Medicine and Immuno-Engineering Henan University

A series of genistein-polyamine conjugates(4a–4h) were designed, synthesized and evaluated as multi-functional anti-Alzheimer agents. The results showed that these compounds had significant cholinesterases(Ch Es) inhibitory activity. Compound 4b exhibited the strongest inhibition to acetylcholinesterase(ACh E) with an IC_(50) value of 2.75 μmol/L, which was better than that of rivastigmine(5.60 μmol/L). Lineweaver–Burk plot and molecular modeling study showed that compound 4b targeted both the catalytic active site(CAS) and the peripheral anionic site(PAS) of ACh E. Besides, compound 4b showed potent metal-chelating ability. In addition, it was found that 4a–4h did not affect Hep G-2 cell viability at the concentration of 10 μmol/L.

关键词： Genistein Polyamine Alzheimer’s disease Acetylcholinesterase Molecular modeling Metal-chelating Inhibition Rivastigmine

Influences of Film Thickness on the Electrical Properties of TaN_x Thin Films Deposited by Reactive DC Magnetron Sputtering

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Journal of Materials Science & Technology 2010年第7期26卷 597-600页

作者： Hongchuan Jiang chaojie wang Wanli Zhang Xu Si Yanrong Li State Key Laboratory of Electronic Thin Film and Integrated Devices University of Electronic Science and Technologyof China Chengdu 610054 China

TaNx thin films were deposited on commercial polished Al2O3 ceramic substrates by reactive dc magnetron sputtering. The influences of the film thickness on the electrical properties of the samples were examined in detail. It is found that the film thickness does not influence the phase structures of the TaNx thin films. The sheet resistances of the samples shift from 173 Ω/sq. to 7.5 Ω/sq. with the film thickness shifting from 30 nm to 280 nm. With the increase of the film thickness from 30 nm to 280 nm, the temperature coefficient of resistance （TCR） of the samples shifts from negative value to positive value. When the film thickness is about 100 nm, TaNx thin films exhibits a near-zero TCR value （approximately -15×10^-6/℃）. This fact implies that TaNx thin films with a null TCR can be obtained by adjusting the film thickness. The variation in the electrical properties of the TaNx thin films with the film thickness can be qualitatively explained by the parallel connection of surface layer with high resistivity and negative TCR and TaNx layer with low resistivity and positive TCR.

关键词： TaNx thin films Film thickness Temperature coefficient of resistance (TCR) Sheet resistance