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Non-adiabatic holonomic quantum operations in continuous variable systems

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Science China(Physics,Mechanics & Astronomy) 2024年第6期67卷 12-19页

作者： hao-long Zhang Yi-hao Kang Fan Wu Zhen-Biao Yang Shi-Biao Zheng Fujian Key Laboratory of Quantum Information and Quantum Optics College of Physics and Information EngineeringFuzhou UniversityFuzhou 350116China

Quantum operations by utilizing the underlying geometric phases produced in physical systems are favoured due to their potential *** a system in a non-degenerate eigenstate undergoes an adiabatically cyclic evolution dominated by its Hamiltonian,it will get a geometric phase,referred to as the Berry *** a non-adiabatically cyclic evolution produces an Aharonov-Anandan geometric *** two types of Abelian geometric phases are extended to the non-Abelian cases,where the phase factors become matrix-valued and the transformations associated with different loops are *** and non-Abelian(holonomic)operations are prevalent in discrete variable systems,whose limited(say,two)energy levels,form the *** their developments in continuous systems have also been investigated,mainly due to that,bosonic modes(in,such as,cat states)with large Hilbert spaces,provide potential advantages in fault-tolerant quantum *** we propose a feasible scheme to realize non-adiabatic holonomic quantum logic operations in continuous variable systems with cat *** construct arbitrary single-qubit(two-qubit)gates with the combination of single-and two-photon drivings applied to a Kerr Parametric Oscillator(KPO)(the coupled KPOs).Our scheme relaxes the requirements of the previously proposed quantum geometric operation strategies in continuous variable systems,providing an effective way for quantum control.

关键词： cat qubit continuous variable systems non-Abelian

RDH12-associated retinal degeneration caused by a homozygous pathogenic variant of 146C>T and literature review

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International Journal of Ophthalmology(English edition) 2024年第2期17卷 311-316页

作者： Jin Li Yi-Qun Hu Hong-Bo Cheng Ting Wang long-hao Kuang Tao Huang Xiao-He Yan Shenzhen Eye Hospital Jinan UniversityShenzhen Eye InstituteShenzhen 518040Guangdong ProvinceChina

AIM:To describe the clinical,electrophysiological,and genetic features of an unusual case with an RDH12 homozygous pathogenic variant and reviewed the characteristics of the patients reported with the same ***:The patient underwent a complete ophthalmologic examination including best-corrected visual acuity,anterior segment and dilated fundus,visual field,spectral-domain optical coherence tomography(OCT)and electroretinogram(ERG).The retinal disease panel genes were sequenced through chip capture high-throughput sequencing and Sanger sequencing was used to confirm the *** we reviewed the characteristics of the patients reported with the same ***:A 30-year male presented with severe early retinal degeneration who complained night blindness,decreased visual acuity,vitreous floaters and amaurosis *** best corrected vision was 0.04 OD and 0.12 OS,*** fundus photo and OCT showed bilateral macular atrophy but larger areas of macular atrophy in the left *** shows bilateral symmetrical *** revealed that the amplitudes of a-and b-wave were severely *** ERG showed decreased amplitudes in the local macular area.A homozygous missense variant c.146C>T(chr14:68191267)was *** clinical characteristics of a total of 13 patients reported with the same pathologic variant ***:An unusual patient with a homozygous pathogenic variant in the c.146C>T of RDH12 which causes late-onset and asymmetric retinal degeneration are *** clinical manifestations of the patient with multimodal retinal imaging and functional examinations have enriched our understanding of this disease.

关键词： RDH12 gene inherited retinal degeneration homozygous pathogenic variant clinical feature multi-mode imaging

Introducing electrolytic electrochemical polymerization for constructing protective layers on Ni-rich cathodes of Li-ion batteries

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Rare Metals 2024年第6期43卷 2536-2545页

作者： Lin-Tao Dou Bei Li hao-long Nie Dong-Dong Xiao Chao-Qun Shang Xiao-Min Wang Zhan-Hui Zhang Katerina E.Aifantis Pu Hu School of Materials Science and Engineering Wuhan Institute of TechnologyWuhan 430205China Huairou Division Institute of PhysicsChinese Academy of SciencesBeijing 101400China Department of Mechanical and Aerospace Engineering University of FloridaGainesvilleFL 32603USA

LiNi_(0.8)Co_(0.1)Mn_(0.1)O_(2)(NCM811)is the most promising cathode for high-energy Li-ion batteries,despite its poor cycling stability that originates from the reactions that occur with the ***,to solve this interfacial issue,a facile electrolytic electrochemical polymerization process was introduced in this paper,and a uniform conductive electrolyte interface(polyaniline)was successfully constructed on the surface of the NCM811 porous electrode(PANI-NCM),which facilitated the charge transfer during charge/*** side reactions at the interface between the cathode and the electrolyte are suppressed,and thereby,the cycling performance and rate capability are considerably ***-NCM delivers an initial capacity of 157.2 mAh·g^(-1)as well as excellent cyclability(capacity retention of 88%after 500 cycles at 2C),whereas the capacity of the bare NCM811 has dropped to 31.3 mAh·g^(-1).In addition,polypyrrole and polythiophene also can be formed through electrolytic electrochemical polymerization process,which provides a practicable tactic to modify the interfacial stability of cathodes for high-energy Li-ion batteries.

关键词： Lithium-ion battery Ni-rich cathode In-situ polymerization Conductive polymer Electrochemical performance

Sahara’s surface transformation forced an abrupt hydroclimate decline and Neolithic culture transition in northern China

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The Innovation 2024年第1期5卷 70-79页

作者： Yandong Hou hao long Sumiko Tsukamoto Zhengyao Lu Jie Chen Daniel EIbarra Toru Tamura Qiong Zhang Weiyi Sun Jingran Zhang Lei Gao Manfred Frechen Ji Shen State Key Laboratory of Lake Science and Environment Nanjing Institute of Geography and LimnologyChinese Academy of Sciences(NIGLAS)Nanjing 210008China Leibniz Institute for Applied Geophysics(LIAG) Department of Geochronology30655 HannoverGermany Department of Physical Geography and Ecosystem Science Lund University22100 LundSweden Key Laboratory of Western China’s Environmental Systems(Ministry of Education) College of Earth and Environmental SciencesLanzhou UniversityLanzhou 730000China College of Atmospheric Sciences Lanzhou UniversityLanzhou 730000China Institute at Brown for Environment and Society and Department of Earth Environmentaland Planetary SciencesBrown UniversityProvidenceRI 02912USA Geological Survey of Japan National Institute of Advanced Industrial Science and TechnologyTsukubaIbaraki 305-8567Japan Graduate School of Frontier Sciences University of TokyoKashiwaChiba 277-8561Japan Department of Physical Geography and Bolin Centre for Climate Research Stockholm University10691 StockholmSweden School of Geography Nanjing Normal UniversityJiangsu Centre for Collaborative Innovation in Geographical Information Resource Development and ApplicationKey Laboratory of Virtual Geographic EnvironmentMinistry of Education of ChinaNanjing 210023China School of Geography and Ocean Science Nanjing UniversityNanjing 210023China

The remote forcing from land surface changes in the Sahara is hypothesized to play a pivotal role in modulating the intensity of the East Asian summer monsoon(EASM)through ocean-atmospheric *** modulation has far-reaching consequences,particularly in facilitating societal shifts documented in northern ***,we present a well-dated lake-level record from the Daihai Lake Basin in northern China,providing quantitative assessments of Holocene monsoonal precipitation and the consequent migrations of the northern boundary of the *** reconstruction,informed by a water-and-energy balance model,indicates that annual precipitation reached700 mm during 8–5 ka,followed by a rapid decline to tween 5 and 4 *** shift coherently aligns with a signi550 mm be-ficant300 km northwestward movement of the EASM northern boundary during the Middle Holocene(MH),in contrast to its current *** findings underscore that these changes cannot be entirely attributed to orbital forcing,as corroborated by simulation *** model simulations deployed in our study suggest that the presence of the Green Sahara during the MH significantly strengthened the EASM and led to a northward shift of the monsoon rainfall ***,the Sahara’s reversion to a desert landscape in the late Holocene was accompanied by a corresponding southward retraction of monsoon *** dramatic hydroclimate changes during5–4 ka likely triggered or at least contributed to a shift in Neolithic cultures and societal transformation in northern *** decreasing agricultural productivity,communities transitioned from millet farming to a mixed rainfed agriculture and animal husbandry ***,our findings elucidate not only the variability of the EASM but also the profound implications of a remote forcing,such as surface transformations of the Sahara,on climatic changes and cultural evolution in northern China.

关键词： Holocene monsoon abrupt

“数字健康”——浅议数据驱动下的人居健康设计发展

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西部人居环境学刊 2024年第4期39卷 38-45页

作者：仲文龙灏重庆大学建筑城规学院重庆大学建筑城规学院山地城镇建设与新技术教育部重点实验室

基于多源数据和智能技术的大数据技术为城市规划与建筑师提供了客观认知和重塑健康人居环境的方法和途径。当前,大数据技术在城市人居健康设计领域已形成了若干研究和实践探索,本文旨在厘清这些研究的内容体系、现状问题和潜在应用方向... 详细信息

基于多源数据和智能技术的大数据技术为城市规划与建筑师提供了客观认知和重塑健康人居环境的方法和途径。当前,大数据技术在城市人居健康设计领域已形成了若干研究和实践探索,本文旨在厘清这些研究的内容体系、现状问题和潜在应用方向,帮助研究和设计者应对人居健康设计发展中现实问题。首先,结合健康中国规划纲要和战略,提出将人类从“疾病预防”到“健康促进”紧密联系的城市开放空间、医疗建筑、医养结合设施作为关键议题;在此基础上,进一步对大数据技术在人居健康设计中的交叉研究进展——包括“健康效益量化”“医疗设计效率”和“医养结合协同”三个方面——进行总结梳理,并分别论述了研究与设计环节出现的问题和未来应用发展的路径;最后提出未来依托大数据技术构建医养结合服务模式转型设计策略的构想。本文为数据驱动下的健康设计发展提供了参考。

关键词：数据驱动健康人居场景医疗设计医养结合人工智能

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ANN-FLUS模型在历史耕地分布变化重建上的应用——以1885—2000年的越南为例

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自然资源学报 2024年第6期39卷 1473-1492页

作者：刘娴刘浩龙中国科学院地理科学与资源研究所陆地表层格局与模拟重点实验室北京100101 中国科学院大学北京100049

历史土地利用及其覆被的变化对于理解不同时期的人地关系具有重要指导意义。传统的耕地开垦优先度模型未考虑土地利用转换规则及邻域效应,重建精度不高。基于多源史料提取越南1885—2000年5个关键年份耕地总量及其9个驱动因素,并应用有... 详细信息

历史土地利用及其覆被的变化对于理解不同时期的人地关系具有重要指导意义。传统的耕地开垦优先度模型未考虑土地利用转换规则及邻域效应,重建精度不高。基于多源史料提取越南1885—2000年5个关键年份耕地总量及其9个驱动因素,并应用有大数据处理和土地转换规律挖掘优势的ANN-FLUS模型探讨耕地分布变化。结果表明:(1)耕地总量由1532千hm^(2)增至6200千hm^(2),其变化以1940年代为转折阶段而表现出前快、后慢的差异;(2)耕地历来集中在红河、湄公河三角洲以及中部沿海平原,其在全国尺度上开发模式由“聚点式”缓慢延伸逐渐转变为“散点”式迅速扩张;(3)ANN-FLUS模型在越南1950年耕地分布格局上的重建精度为Kappa系数0.65,显著优于开垦优先度模型(0.54)及HYDE 3.2数据集模型(0.50)。

关键词：历史耕地分布变化机器学习 ANN-FLUS模型重建越南

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金属硫化物吸附剂烟气脱汞研究进展

应用化工 2024年第2期53卷 374-378页

作者：刘天昕郝润龙华北电力大学环境科学与工程系燃煤电站烟气多污染物协同控制河北省重点实验室河北保定071003

综述了金属硫化物吸附剂的主要类型及其脱汞性能、负载的选取及其特点、金属硫化物的改性方法及其有利效果,以及其它以金属硫化物作为脱汞有效组分的新型吸附剂,并选取了具有代表性的吸附剂进行了整理,提出了制备多元金属硫化物吸附剂... 详细信息

综述了金属硫化物吸附剂的主要类型及其脱汞性能、负载的选取及其特点、金属硫化物的改性方法及其有利效果,以及其它以金属硫化物作为脱汞有效组分的新型吸附剂,并选取了具有代表性的吸附剂进行了整理,提出了制备多元金属硫化物吸附剂、研制适应不同烟气组分的吸附剂以及开发金属硫化物吸附剂再生和汞回收工艺等研究方向和建议,为进一步研发有效的气相脱汞材料并应用于工程实践提供了参考。

关键词：金属硫化物 Hg0脱除吸附剂烟气

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钢管混凝土拱桥施工技术要点分析

现代工程科技 2024年第10期3卷 73-76页

作者：龙浩四川路桥桥梁工程有限责任公司四川成都610000

为了更好地应用钢管混凝土拱桥施工技术,提高桥梁的施工质量,就钢管混凝土拱桥施工技术的应用要点展开分析。明确了在施工建设过程中需要注意的问题,确定了钢管混凝土拱桥施工技术全过程管理策略,以控制施工成本、提高施工质量与效率。

关键词：钢管混凝土拱桥施工技术应用要点施工质量

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长距离密集开孔集水廊道预制模具研究与应用

铁道建筑技术 2024年第7期 34-36,70页

作者：郝龙中铁二十局集团第六工程有限公司陕西西安710032

石家庄市主城区应急水源工程(地表水)长距离密集开孔集水廊道总长3 633 m,采用预制薄壁钢筋混凝土结构,四周侧壁集水孔采用内大外小的圆形孔,开孔率多达10%。在密集开孔集水廊道预制施工中存在吊装交叉作业多、内模频繁组装拆除、集水... 详细信息

石家庄市主城区应急水源工程(地表水)长距离密集开孔集水廊道总长3 633 m,采用预制薄壁钢筋混凝土结构,四周侧壁集水孔采用内大外小的圆形孔,开孔率多达10%。在密集开孔集水廊道预制施工中存在吊装交叉作业多、内模频繁组装拆除、集水孔成孔困难、工期紧任务重等难题,提出了一种立模浇筑施工快速安拆预制模具,重点分析阐述了滑移侧模、整体安拆内模、集水孔成孔模具及拆除工具设计方案及关键技术。通过项目应用效果分析,表明预制模具设计合理、安全高效,很好解决了长距离密集开孔集水廊道预制难题,以期为类似结构施工提供借鉴。

关键词：密集开孔集水廊道预制模具滑移侧模整体安拆