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Design and experimentation of the transport mechanism for mulberry leaf harvesting machine in hilly terrain

Journal of Chinese Agricultural Mechanization 2024年第3期45卷 133-139页

作者： lu l. li l. lu S. Tang H. College of Engineering and Technology Southwest University Chongqing Key Laboratory of Agricultural Equipment for Hilly and Mountainous Regions Chongqing 400715 China Yibin Academy of Southwest University Yibin 644000 China

Aiming at the lack of mulberry leaf harvesting machinery in hilly and mountainous areas, the difficulty of mulberry leaf harvesting and collection, and the labor intensity of manual harvesting, developing a mulberry leaf harvesting machine for hilly and mountainous terrains. and mountainous areas, and focused on the design and test of the transfer device. Firstly, analyze the working environment of the mulberry leaf harvester and the mulberry leaf harvesting process, and complete the analysis of the working principle and structural design and calculation of the receiving mechanism, guiding mechanism and bag feeding mechanism of the transfer device. Secondly, according to the design parameters, the prototype of mulberry leaf harvester is made, and the test of the transfer device is carried out in the hilly and mountainous mulberry gardens. Finally, according to the test to get the conclusion: mulberry leaf harvester transfer device toggle speed for 80 r/min, automatic decoupling length size b1=25 mm, width size b2=25mm, depth size b3= 15 mm, when hook thickness h3= 8 mm, the receiving mechanism transfer process mulberry leaves average transfer rate of 95.78%, the guide mechanism mulberry leaves into the bag of the average rate of 97.88%, the bag feeding mechanism bag drop rate of 1.25%, the success rate of automatic bag removal is 98.75%. The field test in mulberry orchard shows that the mulberry leaf harvester transfer device can meet the functional requirements of mulberry leaf harvesting, which verifies the correctness and feasibility of the design. © 2024 Journal of Chinese Agricultural Mechanization Editorial Office. All rights reserved.

关键词： bag feeding mechanism guide mechanism mulberry leaf harvesting machine receiving mechanism transport mechanism

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Tomographic reconstruction of the Earth’s magnetosheath from multiple spacecraft:a theoretical study

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Earth and Planetary Physics 2024年第1期8卷 204-214页

作者： A.M.Jorgensen TianRan Sun Y.Huang l.li R.Xu l.Dai Chi Wang New Mexico Institute of Mining and Technology SocorroNMUSA National Space Science Center Chinese Academy of SciencesBeijing 100190China Tsinghua University Beijing 100084China

Following our earlier work on tomographic reconstruction of the magnetosheath soft X-ray emissions with superposed epoch analysis of many images recorded from a single spacecraft we now explore the instantaneous reconstruction of the magnetosheath and magnetopause using a few images recorded simultaneously from a few spacecraft.This work is motivated by the prospect of possibly having two or three soft X-ray imagers in space in the coming years,and that many phenomena which occur at the magnetopause boundary,such as reconnection events and pressure pulse responses,do not lend themselves as well to superposed epoch analysis.If the reconstruction is successful-which we demonstrate in this paper that it can be-this collection of imagers can be used to reconstruct the magnetosheath and magnetopause from a single image from each spacecraft,allowing for high time resolution reconstructions.In this paper we explore the reconstruction using,two,three,and four spacecraft.We show that the location of the subsolar point of the magnetopause can be determined with just two satellites,and that volume emissions of soft X-rays,and the shape of the boundary,can be reconstructed using three or more satellites.

关键词： magnetosheath tomography soft X-ray imaging SMIlE

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STCF conceptual design report (Volume 1): Physics & detector

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Frontiers of physics 2024年第1期19卷 1-154页

作者： M.Achasov X.C.Ai l.P.An R.Aliberti Q.An X.Z.Bai Y.Bai O.Bakina A.Barnyakov V.Blinov V.Bobrovnikov D.Bodrov A.Bogomyagkov A.Bondar I.Boyko Z.H.Bu F.M.Cai H.Cai J.J.Cao Q.H.Cao X.Cao Z.Cao Q.Chang K.T.Chao D.Y.Chen H.Chen H.X.Chen J.F.Chen K.Chen l.l.Chen P.Chen S.l.Chen S.M.Chen S.Chen S.P.Chen W.Chen X.Chen X.F.Chen X.R.Chen Y.Chen Y.Q.Chen H.Y.Cheng J.Cheng S.Cheng T.G.Cheng J.P.Dai l.Y.Dai X.C.Dai D.Dedovich A.Denig I.Denisenko J.M.Dias D.Z.Ding l.Y.Dong W.H.Dong V.Druzhinin D.S.Du Y.J.Du Z.G.Du l.M.Duan D.Epifanov Y.l.Fan S.S.Fang Z.J.Fang G.Fedotovich C.Q.Feng X.Feng Y.T.Feng J.l.Fu J.Gao Y.N.Gao P.S.Ge C.Q.Geng l.S.Geng A.Gilman l.Gong T.Gong B.Gou W.Gradl J.l.Gu A.Guevara l.C.Gui A.Q.Guo F.K.Guo J.C.Guo J.Guo Y.P.Guo Z.H.Guo A.Guskov K.l.Han l.Han M.Han X.Q.Hao J.B.He S.Q.He X.G.He Y.l.He Z.B.He Z.X.Heng B.l.Hou T.J.Hou Y.R.Hou C.Y.Hu H.M.Hu K.Hu R.J.Hu W.H.Hu X.H.Hu Y.C.Hu J.Hua G.S.Huang J.S.Huang M.Huang Q.Y.Huang W.Q.Huang X.T.Huang X.J.Huang Y.B.Huang Y.S.Huang N.Hüsken V.Ivanov Q.P.Ji J.J.Jia S.Jia Z.K.Jia H.B.Jiang J.Jiang S.Z.Jiang J.B.Jiao Z.Jiao H.J.Jing X.l.Kang X.S.Kang B.C.Ke M.Kenzie A.Khoukaz I.Koop E.Kravchenko A.Kuzmin Y.lei E.levichev C.H.li C.li D.Y.li F.li G.li G.li H.B.li H.li H.N.li H.J.li H.l.li J.M.li J.li l.li l.li l.Y.li N.li P.R.li R.H.li S.li T.li W.J.li X.li X.H.li X.Q.li X.H.li Y.li Y.Y.li Z.J.li H.liang J.H.liang Y.T.liang G.R.liao l.Z.liao Y.liao C.X.lin D.X.lin X.S.lin B.J.liu C.W.liu D.liu F.liu G.M.liu H.B.liu J.liu J.J.liu J.B.liu K.liu K.Y.liu K.liu l.liu Q.liu S.B.liu T.liu X.liu Y.W.liu Y.liu Y.l.liu Z.Q.liu Z.Y.liu Z.W.liu I.logashenko Y.long C.G.lu J.X.lu N.lu Q.F.lü Y.lu Y.lu Z.lu P.lukin F.J.luo T.luo X.F.luo Y.H.luo H.J.lyu X.R.lyu J.P.Ma P.Ma Y.Ma Y.M.Ma F.Maas S.Malde D.Matvienko Z.X.Meng R.Mitchell A.Nefediev Y.Nefedov S.l.Olsen Q.Ouyang P.Pakhlov G.Pakhlova X.Pan Y.Pan E.Passemar Y.P.Pei H.P.Peng l.Peng X.Y.Peng X.J.Peng K.Peters S.Pivovarov E.Pyata B.B.Qi Y.Q.Qi W.B.Qian Y.Qian C.F.Qiao J.J.Qin J.J.Qin l.Q.Qin X.S.Qin T.l.Qiu J.Rademacker C.F.Redmer H.Y.Sang Anhui University Hefei 230039China Beihang University Beijing 100191China Budker Institute of Nuclear Physics Novosibirsk 630090Russia CAS Key laboratory of Theoretical Physics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China Cavendish laboratory University of CambridgeJJ Thomson AveCambridge CB30HEUnited Kingdom Central China Normal University Wuhan 430079China Central South University Changsha 410083China China University of Geosciences Wuhan 430074China China University of Mining and Technology Xuzhou 221116China École Polytechnique Fédérale de lausanne(EPFl) LausanneSwitzerland Fudan University Shanghai 200433China Goethe University Frankfurt D-60325 Frankfurt am MainGermany Guangxi Normal University Guilin 541004China Guangxi Uninversity Nanning 530004China Hangzhou Institute for Advanced Study UCASHangzhou 310024China Hebei Normal University Shijiazhuang 050024China Hebei University Baoding 071002China Hefei University of Technology Hefei 230601China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University Kaifeng 475004China High Energy Physics Center Chung-Ang UniversitySeoul 06974Korea Higher School of Economy 11 Pokrovsky Bulvar Moscow 109028Russia Huangshan University Huangshan 245000China Hubei University of Automotive Technology Shiyan 442002China Hunan Normal University Changsha 410081China Hunan University of Science and Technology Xiangtan 411201China Hunan University Changsha 410082China Indiana University BloomingtonIndiana 47405USA Inner Mongolia University Hohhot 010021China Institute of Advanced Science Facilities Shenzhen 518107China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China Institute of Physics Academia SinicaTaipeiTaiwan 11529China Institute of Theoretical Physics Chinese Academy of SciencesBeijing 100190China Jilin University Changch

The superτ-charm facility(STCF)is an electron–positron collider proposed by the Chinese particle physics community.It is designed to operate in a center-of-mass energy range from 2 to 7 GeV with a peak luminosity of 0.5×10^(35) cm^(–2)·s^(–1) or higher.The STCF will produce a data sample about a factor of 100 larger than that of the presentτ-charm factory—the BEPCII,providing a unique platform for exploring the asymmetry of matter-antimatter(charge-parity violation),in-depth studies of the internal structure of hadrons and the nature of non-perturbative strong interactions,as well as searching for exotic hadrons and physics beyond the Standard Model.The STCF project in China is under development with an extensive R&D program.This document presents the physics opportunities at the STCF,describes conceptual designs of the STCF detector system,and discusses future plans for detector R&D and physics case studies.

关键词： electron–positron collider tau-charm region high luminosity STCF detector conceptual design

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Diagnosis of bile duct hepatocellular carcinoma thrombus without obvious intrahepatic mass

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World Journal of Gastroenterology 2010年第39期16卷 4998-5004页

作者： long XY li YX Wu W li l Cao J. Department of General Surgery Xiangya Hospital Central South University Changsha 410008 Hunan Province China. liyixiong6@***

AIM:To study the diagnosis of hepatocellular carcinoma(HCC)presenting as bile duct tumor thrombus with no detectable intrahepatic mass.METHODS:Six patients with pathologically proven bile duct HCC thrombi but no intrahepatic mass demonstrated on the preoperative imaging or palpated intrahepatic mass during operative exploration,were collected.Their clinical and imaging data were retrospectively analyzed.The major findings or signs on comprehensive imaging were correlated with the surgical and pathologic findings.RESUlTS:Jaundice was the major clinical symptom of the patients.The elevated serum total bilirubin,direct bilirubin and alanine aminotransferase levels were in concordance with obstructive jaundice and the underlying liver disease.Of the 6 patients showing evidence of viral hepatitis,5 were positive for serum alpha fetoprotein and carbohydrate antigen 19-9,and 1 was positive for serum carcinoembryonic antigen.No patient was correctly diagnosed by ultrasound.The main features of patients on comprehensive imaging were filling defects with cup-shaped ends of the bile duct,with large filling defects presenting as casting moulds in the expanded bile duct,hypervascular intraluminal nodules,debris or blood clots in the bile duct.No obvious circular thickening of the bile duct walls was observed.CONClUSION:Even with no detectable intrahepatic tumor,bile duct HCC thrombus should be considered in patients predisposed to HCC,and some imaging signs are indicative of its diagnosis.

关键词： Hepatocellular carcinoma Obstructive jaundice Bile duct tumor thrombus Diagnosis Diagnostic imaging

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Bi_(2)O_(2)Se纳米线的生长及其超导量子干涉器件

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物理学报 2024年第4期73卷 285-290页

作者：刘怀远肖建飞吕昭征吕力屈凡明中国科学院物理研究所北京凝聚态物理国家研究中心北京100190 中国科学院大学物理科学学院北京100049 合肥国家实验室合肥230088

Bi_(2)O_(2)Se是一种新型半导体材料,具有载流子迁移率高、空气中稳定和自旋轨道耦合强等优点,并且其合成方法多种多样,应用范围十分广泛.但已有研究大多集中在其二维薄膜,本文介绍一种使用三温区管式炉通过化学气相沉积生长Bi_(2)O_(2... 详细信息

Bi_(2)O_(2)Se是一种新型半导体材料,具有载流子迁移率高、空气中稳定和自旋轨道耦合强等优点,并且其合成方法多种多样,应用范围十分广泛.但已有研究大多集中在其二维薄膜,本文介绍一种使用三温区管式炉通过化学气相沉积生长Bi_(2)O_(2)Se一维纳米线的方法,研究了云母衬底处于水平方向不同位置以及竖直方向不同高度对Bi_(2)O_(2)Se纳米线生长的影响,并归纳出适于其生长的优化条件.之后,基于生长的Bi_(2)O_(2)Se纳米线构建了超导量子干涉器件,并观测到随磁场的超导量子干涉,为拓宽Bi_(2)O_(2)Se纳米线的应用提供了思路.

关键词： Bi_(2)O_(2)Se纳米线化学气相沉积超导量子干涉器

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求图中点度数的量子算法

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中山大学学报（自然科学版）（中英文） 2024年第1期63卷 1-9页

作者：郎健翔李绿周中山大学计算机学院广东广州510006

本文探讨了图属性测试问题的量子加速:对于给定的图和整数k,图中是否存在一个度数为k的顶点?该问题的量子复杂度在邻接矩阵oracle模型下被证明为O(N√k),而其经典复杂度为Ω(N^(2)),其中N是图中顶点的数量.为了证明该结果,得出了一个技... 详细信息

本文探讨了图属性测试问题的量子加速:对于给定的图和整数k,图中是否存在一个度数为k的顶点?该问题的量子复杂度在邻接矩阵oracle模型下被证明为O(N√k),而其经典复杂度为Ω(N^(2)),其中N是图中顶点的数量.为了证明该结果,得出了一个技术性结论,即对于给定的函数g:[N]→{0,1}和整数k,存在一个量子算法可以在O(√Nk)次查询内判定|{x:g(x)=1}|是否等于k.文中的结果基于量子奇异值变换(QSVT)和有误差输入的量子搜索技术.

关键词：量子奇异值变换量子算法图属性测试

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The equation of chronoamperometric current on an oblate hemispheroid microelectrode and its verification

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Chinese Journal of Chemistry 1996年第4期14卷 331-337页

作者： Diao, GW li, l Zhang, ZX NANJING UNIV DEPT CHEMNANJING 210093JIANGSUPEOPLES R CHINA

With the aspect of equivalent diffusion layer an analytical chronoamperometric current equation on an oblate hemispheroid microelectrode for reversible electrochemical condition is derived. To verify this equation the chronoammograms have been obtained with benzoquinone in McIlvaine buffer solution (pH 7.0) at a mercury oblate hemispheroid microelectrode. The experimental results agree with the theoretical conclusions.

关键词： chronoamperometric current equation oblate hemispheroid microelectrode reduction of benzoquinone

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Thermodynamic Calculation of Segregation in Multicomponent Steels

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Journal of Materials Science & Technology 1996年第3期12卷 238-240页

作者： li, l Delaey, l Wollants, P Biest, VD KATHOliEKE UNIV lEUVEN DEPT MTMB-3001 HEVERLEEBELGIUM

The thermodynamic equation for segregation in multicomponent steels is extended from that in ternary system and the segregation amounts of Cr, C and P in the intergranular phase in a Cr-steel are estimated.

关键词： REGUlAR SOlUTION MODEl PHASES

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Certainty-based Preference Completion

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Data Intelligence 2022年第1期4卷 112-133页

作者： li l. Xue M. Zhang Z. Chen H. Wu X. Key laboratory of Knowledge Engineering with Big Data Hefei University of Technology Ministry of Education Hefei 230009 China School of Computer Science and Information Engineering Hefei University of Technology Hefei 230009 China School of Computer Science and Technology University of Science and Technology of China Hefei 230026 China

lei li1,2, Minghe Xue2, Zan Zhang2, Huanhuan Chen3&Xindong Wu1

关键词： Certainty Conflict Nondeterministic Preference completion Subjective probability

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Total Synthesis of Gnetifolin A

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Chinese Chemical letters 1997年第12期8卷 0-0,0-0页

作者： Huang, DF li, l Zhang, X Chen, SF Peking Union Med Coll Chinese Acad Med Sci Inst Mat Med Beijing 100050 Peoples R China

Total synthesis of gnetifolin A was accomplished via intramolecular Wittig reaction. The synthesis started from 2 -methoxy- 3 -methylhydroquinone and methyl 4-0-methylgallate through eight steps

关键词： CCU DCC DMF 甲酰胺 NBS Total Synthesis of Gnetifolin A

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