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云南省竹产业发展思路研究

林业调查规划 2024年第3期49卷 219-224页

作者：余志飞杨璇玺杨卿孙蕊云南省林业调查规划院云南昆明650051

云南省有竹类植物29属250种,分别占全国的66%、33%,居全国第9位;生产大径竹1.33亿根、小杂竹898万t;生产竹胶合板500 m3、竹地板(含竹木复合地板)2400万m2、竹笋干10.6万t;竹产业产值40.1亿元。云南省竹产业具有散生竹资源占比大、地域... 详细信息

云南省有竹类植物29属250种,分别占全国的66%、33%,居全国第9位;生产大径竹1.33亿根、小杂竹898万t;生产竹胶合板500 m3、竹地板(含竹木复合地板)2400万m2、竹笋干10.6万t;竹产业产值40.1亿元。云南省竹产业具有散生竹资源占比大、地域集中度高、天然竹资源占比大、笋用竹占优势地位、竹笋产品产值占优势地位、文化底蕴厚重等特点。目前竹产业面临着集约化经营水平低、深加工利用滞后、经营主体少且弱等困难和问题。藉此,提出突出特色优势,创新组织经营,强化政策支持,创新融合发展,加大招商力度等建议。云南省笋用竹产业发展处全国前列,有较好的产业基础和发展前景,应作为云南省竹产业发展的突破口,做大产业特色优势,并融合园区经济和乡村振兴建设,推进云南省竹产业高质量发展。

关键词：竹产业发展竹资源笋用竹特色优势融合发展云南省

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Memory-assisted quantum accelerometer with multi-bandwidth

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Photonics Research 2022年第4期10卷 1022-1030页

作者： zhifei yu Bo Fang Liqing Chen Keye Zhang Chun-Hua yuan Weiping Zhang State Key Laboratory of Precision Spectroscopy School of Physics and Electronic ScienceEast China Normal UniversityShanghai 200062China Shanghai Research Center for Quantum Sciences Shanghai 201315China School of Physics and Astronomy Shanghai Jiao Tong Universityand Tsung-Dao Lee InstituteShanghai 200240China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan 030006China

The accelerometer plays a crucial role in inertial *** performance of conventional accelerometers such as lasers is usually limited by the sensing elements and shot noise limitation(SNL).Here,we propose an advanced development of an accelerometer based on atom–light quantum correlation,which is composed of a cold atomic ensemble,light beams,and an atomic vapor *** cold atomic ensemble,prepared in a magneto-optical trap and free-falling in a vacuum chamber,interacts with light beams to generate atom–light quantum *** atomic vapor cell is used as both a memory element storing the correlated photons emitted from cold atoms and a bandwidth controller through the control of free evolution *** of using a conventional sensing element,the proposed accelerometer employs interference between quantum-correlated atoms and light to measure *** below SNL can be achieved due to atom–light quantum correlation,even in the presence of optical loss and atomic *** can be achieved at the ng∕√Hz level,based on evaluation via practical experimental *** present design has a number of significant advantages over conventional accelerometers such as SNL-broken sensitivity,broad bandwidth from a few hundred Hz to near MHz,and avoidance of the technical restrictions of conventional sensing elements.

关键词： quantum accelerometer atomic

Effect of Lightweight Aggregates Incorporation on the Mechanical Properties and Shrinkage Compensation of a Cement-Ground Granulated Blast Furnace Slag-Phosphogypsum Ternary System

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Fluid Dynamics & Materials Processing 2024年第8期20卷 1773-1784页

作者： yu Wang Mengyang Ma Yong Long Qingxiang Zhao zhifei Cheng State Key Laboratory of Bridge Intelligent and Green Construction China Railway Major Bridge Engineering Group Co.Ltd.Wuhan430034China China Railway Bridge Science Research Institute. Ltd.Wuhan430034China

Shrinkage-induced cracking is a common issue in concrete structures,where the formation of cracks not only affects the aesthetic appearance of concrete but also potentially reduces its durability and *** this study,the effect of ceramsite sand addition on the properties of a ternary system of cement-ground granulated blast furnace slag(GGBFS)-phosphogypsum(PG)is *** particular,the fluidity,rheology,hydration heat,compressive strength,autogenous shrinkage,and drying shrinkage of the considered mortar specimens are *** results indicate that an increase in PG content leads to a decrease in fluidity,higher viscosity,lower exothermic peak,and lower compressive ***,the shrinkage of the mortar specimens is effectively *** incorporation of internal curing water from ceramsite sand improves fluidity,decreases both yield stress and viscosity,enhances the degree of hydration,and induces mortar ***,the inferior mechanical properties of the ceramsite sand generally produce a decrease in the compressive strength.

关键词： Phosphogypsum ceramsite sand internal curing mechanical property shrinkage

Prognostic significance of grade of malignancy based on histopathological differentiation and Ki-67 in pancreatic ductal adenocarcinoma

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Cancer Biology & Medicine 2024年第5期21卷 416-432页

作者： yuexiang Liang Guannan Sheng yu Guo Yiping Zou Hanhan Guo zhifei Li Shaofei Chang Quan Man Song Gao Jihui Hao Department of Pancreatic Cancer Tianjin Medical University Cancer Institute&HospitalNational Clinical Research Center for CancerKey Laboratory of Cancer Prevention and TherapyTianjinTianjin’s Clinical Research Center for CancerTianjin 300060China Department of Gastrointestinal Oncology The First Affiliated Hospital of Hainan Medical UniversityHaikou 570102China Department of Gastrointestinal Pancreatic Surgery Shanxi Provincial People’s HospitalTaiyuan 030012China

Objective:Tumor cell malignancy is indicated by histopathological differentiation and cell ***-67,an indicator of cellular proliferation,has been used for tumor grading and classification in breast cancer and neuroendocrine ***,its prognostic significance in pancreatic ductal adenocarcinoma(PDAC)remains ***:Patients who underwent radical pancreatectomy for PDAC were retrospectively enrolled,and relevant prognostic factors were *** of malignancy(GOM),a novel index based on histopathological differentiation and Ki-67,is proposed,and its clinical significance was ***:The optimal threshold for Ki-67 was determined to be 30%.Patients with a Ki-67 expression level>30%rather than≤30%had significantly shorter 5-year overall survival(OS)and recurrence-free survival(RFS).In multivariate analysis,both histopathological differentiation and Ki-67 were identified as independent prognostic factors for OS and *** GOM was used to independently stratify OS and RFS into 3 tiers,regardless of TNM stage and other established prognostic *** tumor-nodemetastasis-GOM stage was used to stratify survival into 5 distinct tiers,and surpassed the predictive performance of TNM stage for OS and ***:Ki-67 is a valuable prognostic indicator for *** of the GOM in the TNM staging system may potentially enhance prognostic accuracy for PDAC.

关键词： Pancreatic ductal adenocarcinoma prognosis Ki-67 differentiation TNM stage

PABP-driven secondary condensed phase within RSV inclusion bodies activates viral mRNAs for ribosomal recruitment

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Virologica Sinica 2024年第2期39卷 235-250页

作者： Qiang Zhang Hanzhe Ye Cong Liu Haiwu Zhou Mingbin He Xiaodong Liang yu Zhou Kun Wang Yali Qin zhifei Li Mingzhou Chen State Key Laboratory of Virology and Modern Virology Research Center College of Life SciencesWuhan UniversityWuhan430072China Taikang Center for Life and Medical Sciences Wuhan UniversityWuhan430072China Hubei Jiangxia Laboratory Wuhan430200China

Inclusion bodies(IBs)of respiratory syncytial virus(RSV)are formed by liquid-liquid phase separation(LLPS)and contain internal structures termed“IB-associated granules”(IBAGs),where anti-termination factor M2-1 and viral mRNAs are ***,the mechanism of IBAG formation and the physiological function of IBAGs are ***,we found that the internal structures of RSV IBs are actual M2-1-free viral messenger ribonucleoprotein(mRNP)condensates formed by secondary ***,the RSV nucleoprotein(N)and M2-1 interact with and recruit PABP to IBs,promoting PABP to bind viral mRNAs transcribed in IBs by RNArecognition motif and drive secondary phase ***,PABP-eIF4G1 interaction regulates viral mRNP condensate composition,thereby recruiting specific translation initiation factors(eIF4G1,eIF4E,eIF4A,eIF4B and eIF4H)into the secondary condensed phase to activate viral mRNAs for ribosomal *** study proposes a novel LLPS-regulated translation mechanism during viral infection and a novel antiviral strategy via targeting on secondary condensed phase.

关键词： Respiratory syncytial virus(RSV) Inclusion bodies(IBs) Biomolecular condensates Liquid-liquid phase separation(LLPS) Secondary condensed phase mRNA activation

Reducing the mode-mismatch noises in atom–light interactions via optimization of the temporal waveform

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Photonics Research 2020年第11期8卷 1697-1702页

作者： Xiaotian Feng zhifei yu Bing Chen Shuying Chen yuan Wu Donghui Fan Chun-Hua yuan L.Q.Chen Z.Y.Ou Weiping Zhang State Key Laboratory of Precision Spectroscopy Quantum Institute for Light and AtomsDepartment of PhysicsEast China Normal UniversityShanghai 200062China School of Electronic Science and Applied Physics Hefei University of TechnologyHefei 230009China Department of Physics Indiana University-Purdue University IndianapolisIndianapolisIndiana 46202USA School of Physics and Astronomy and Tsung-Dao Lee InstituteShanghai Jiao Tong UniversityShanghai 200240China

Atom–light interface is at the core of quantum metrology and quantum information *** noises during interaction processes are always inevitable and *** this paper,we perform the stimulated Raman scattering(SRS)in a hot Rb 87 vapor cell and demonstrate the reduction of related noises originated from mode mismatch via optimizing the temporal waveform of the input *** using the seed with the optimized mode,the intensity fluctuation of the signal field generated in atom–light interaction is decreased by 4.3 ***,the fluctuation of the intensity difference between the signal and atomic spin wave is reduced by 3.1 *** a temporal mode-cleaning method can be applied to improve the precision of atom interferometry using SRS and should be helpful for quantum information processing based on an atom–light correlated system.

关键词： quantum optimization interferometry

邺城南郊佛寺视角下的北齐都城与帝陵规划理念探索

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中国文化遗产 2022年第1期107卷 102-110页

作者：于志飞中国文化遗产研究院北京100029

营造于北齐邺城南郊礼制建筑区位、格局迥异的核桃园及赵彭城佛寺,与邺城"模写洛京"特质关联密切,并与都城重要建筑乃至城郊陵墓、石窟之间存在特殊的方位关联。这种设计既有对两汉以来都城空间特质的继承,也有崇佛之风熏染下的"新意",... 详细信息

营造于北齐邺城南郊礼制建筑区位、格局迥异的核桃园及赵彭城佛寺,与邺城"模写洛京"特质关联密切,并与都城重要建筑乃至城郊陵墓、石窟之间存在特殊的方位关联。这种设计既有对两汉以来都城空间特质的继承,也有崇佛之风熏染下的"新意",是两汉至隋唐都城—陵墓空间关系制度发生变化的关键之点,两佛寺之营造在这一变化中具有关键意义。

关键词：邺城核桃园北朝佛寺赵彭城北朝佛寺邺城制度礼制建筑北齐帝陵响堂山石窟

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光-原子混合干涉实现加速度测量

华东师范大学学报（自然科学版） 2022年第4期 139-146页

作者：方波于志飞陈丽清华东师范大学物理与电子科学学院上海200241

基于光-原子混合干涉仪构建了一种新型的光-原子相位自锁定的加速度计.虽然在目前所有加速度计中,全光类型的加速度计由于其体积小、精度高,成为了最常用且也是最稳定的加速度计;但由于其测量带宽受到的限制,所以极大地限制了其使用的范... 详细信息

基于光-原子混合干涉仪构建了一种新型的光-原子相位自锁定的加速度计.虽然在目前所有加速度计中,全光类型的加速度计由于其体积小、精度高,成为了最常用且也是最稳定的加速度计;但由于其测量带宽受到的限制,所以极大地限制了其使用的范围.基于此,设计了一种新型的光-原子加速度计(Atom-Light Accelerometer,ALA).该加速度计的特点:首先,在原子系统中通过受激拉曼散射(Stimulated Raman Scattering,SRS)过程构成光-原子混合干涉仪;其次,由反射镜构成加速度计的弹性质量块,在实验平台上,当质量块受到一个加速度作用时,就会接收到外界带来的位移的变化,从而将相位的变化引入到干涉仪中;最后,通过干涉条纹的变化,即可感知到引入相位的大小,继而推出位移的变化量,因此也就获得了加速度的大小.该加速度计的优点:SRS过程中产生的斯托克斯光场和对应产生的原子自旋波相位是相互关联的,从而保障了装置中相位的稳定性;该装置简单,测量范围可调,增加了其适用的范围;同时,理想情况下,其精度能超越标准量子极限(Standard Quantum Limit,SQL).

关键词：受激拉曼散射光-原子混合干涉仪光-原子加速度计强度探测平衡零拍探测测量精度

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Orientation determination of nitrogen-vacancy center in diamond using a static magnetic field

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Chinese Physics B 2023年第7期32卷 249-253页

作者：王杨鹏章如健杨燕吴琴于志飞陈冰 Department of Physics Hefei University of TechnologyHefei 230009China

Nitrogen-vacancy(NV)centers in a bulk diamond are often employed to realize measurement of multiple physical quantities,which depends on orientation information of NV *** report a fast and effective method to determine the orientation of NV axis with the aid of a static magnetic *** measuring the optically detected magnetic resonance spectra,we can precisely extract the polar angle information between the NV axis and the known magnetic *** with the polar angle information of different kinds of NV centers,we employ the Nelder-Mead algorithm to get the optimal solution of the orientation of NV *** method is simple and efficient,and is easily applied in NV-based quantum sensing.

关键词： nitrogen-vacancy centers polar angle quantum sensing