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Wave effect of gravitational waves intersected with a microlens field II:An adaptive hierarchical tree algorithm and population study

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Science China(Physics,Mechanics & Astronomy) 2025年第1期68卷 237-250页

作者： Xikai Shan Guoliang Li Xuechun Chen wen zhao Bin Hu Shude Mao Purple Mountain Observatory Chinese Academy of SciencesNanjing 210023China Department of Astronomy Tsinghua UniversityBeijing 100084China Institute for Frontier in Astronomy and Astrophysics Beijing Normal UniversityBeijing 102206China School of Physics and Astronomy Beijing Normal UniversityBeijing 100875China School of Astronomy and Space Science University of Science and Technology of ChinaHefei 230026China CAS Key Laboratory for Researches in Galaxies and Cosmology Department of AstronomyUniversity of Science and Technology of ChinaChinese Academy of SciencesHefei 230026China

The gravitational lensing wave effect generated by a microlensing field embedded in a lens galaxy is an inevitable phenomenon in strong lensed gravitational waves(SLGWs).This effect presents both challenges and opportunities for the detection and appli-cation of ***,investigating this wave effect requires computing a complete diffraction integral over each microlens in the *** is extremely time-consuming due to the large number of microlenses(10^(3)-10^(6)).Therefore,simply adding all the microlenses is ***,the complexity of the time delay surface makes the lens plane resolution a crucial factor in controlling numerical *** this paper,we propose a trapezoid approximation-based adaptive hierarchical tree algo-rithm to meet the challenges of calculation speed and *** find that this algorithm accelerates the calculation by four orders of magnitude compared to the simple adding method and is one order of magnitude faster than the fixed hierarchical tree algorithm proposed for electromagnetic *** importantly,our algorithm ensures controllable numerical errors,increasing confidence in the *** with our previous work(***.66,239511,2023),this paper addresses all numerical issues,including integral convergence,precision,and computational time1).Finally,we conducted a population study on the microlensing wave effect of SLGWs using this algorithm and found that the microlensing wave effect cannot be ignored,especially for Type II SLGWs(from saddle position of the time delay surface)due to their intrinsic geometric structures and their typical intersection with a denser microlensing ***,more than 33%(11%)of SLGWs have a mismatch larger than 1%(3%)compared to the unlensed ***,we found that the mismatch between signal pairs in a doubly imaged GW is generally larger than 10^(−3),and 61%(25%)of signal pairs have a mismatch larger than 1%(3%).Theref

关键词： gravitational lensing diffractional integral algorithm gravitational wave

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Atlantoaxial dislocation with vertebral artery anomaly:A case report

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World Journal of Orthopedics 2025年第2期16卷 81-87页

作者： Ruo-Hui Tang Jin Yin zhao-wen Zhou Department of Orthopedic The First People’s Hospital of KunmingKunming 650000Yunnan ProvinceChina

BACKGROUND Surgical intervention is a critical treatment approach for symptomatic atlantoaxial ***,vertebral artery injury remains a significant challenge during such *** present a case of successful treatment of atlantoaxial dislocation with concurrent vertebral artery injury using interlaminar screw technology,and review the relevant *** SUMMARY A 69-year-old female patient,with no history of trauma,was diagnosed with atlantoaxial dislocation based on X-ray,computed tomography(CT),and magnetic resonance *** CT angiography(CTA)revealed vertebral artery developmental anomalies,and she underwent posterior cervical *** follow-up showed improvement in the patient’s clinical symptoms such as unstable walking and dizziness,as well as functional scores compared to *** vertebral artery injury was successfully managed,and postoperative CTA review revealed no complications related to vascular *** Thorough preoperative evaluation,such as CTA imaging,and the surgeon’s expertise in various spinal screw placement techniques are crucial for improving the success rate of atlantoaxial dislocation surgeries.

关键词： Atlantoaxial dislocation Vertebral artery injury Vertebral artery congenital Screw techniques Computed tomography angiography Case report

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Activation of adult endogenous neurogenesis by a hyaluronic acid collagen gel containing basic fibroblast growth factor promotes remodeling and functional recovery of the injured cerebral cortex

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Neural Regeneration Research 2025年第10期20卷 2923-2937页

作者： Yan Li Peng Hao Hongmei Duan Fei Hao wen zhao Yudan Gao zhaoyang Yang Kwok-Fai So Xiaoguang Li Department of Neurobiology School of Basic Medical SciencesCapital Medical UniversityBeijingChina China Rehabilitation Science Institute China Rehabilitation Research CenterBeijing Key Laboratory of Neural Injury and RehabilitationBeijingChina Center of Neural Injury and Repair Beijing Institute for Brain DisordersBeijingChina Beijing Key Laboratory for Biomaterials and Neural Regeneration School of Engineering MedicineBeihang UniversityBeijingChina Guangdong-HongKong-Macao Institute of CNS Regeneration Ministry of Education CNS Regeneration Collaborative Joint LaboratoryJinan UniversityGuangzhouGuangdong ProvinceChina Bioland Laboratory(Guangzhou Regenerative Medicine and Health Guangdong Laboratory) GuangzhouGuangdong ProvinceChina Department of Ophthalmology and State Key Laboratory of Brain and Cognitive Sciences The University of Hong KongHong Kong Special Administration RegionChina Center for Brain Science and Brain-Inspired Intelligence Guangdong-HongKong-Macao Greater Bay AreaGuangzhouGuangdong ProvinceChina Co-innovation Center of Neuroregeneration Nantong UniversityNantongJiangsu ProvinceChina Department of Biomedical Engineering School of Biological Science and Medical EngineeringBeihang UniversityBeijingChina

The presence of endogenous neural stem/progenitor cells in the adult mammalian brain suggests that the central nervous system can be repaired and regenerated after ***,whether it is possible to stimulate neurogenesis and reconstruct cortical layers II to VI in non-neurogenic regions,such as the cortex,remains *** this study,we implanted a hyaluronic acid collagen gel loaded with basic fibroblast growth factor into the motor cortex immediately following traumatic *** findings reveal that this gel effectively stimulated the proliferation and migration of endogenous neural stem/progenitor cells,as well as their differentiation into mature and functionally integrated ***,these new neurons reconstructed the architecture of cortical layers II to VI,integrated into the existing neural circuitry,and ultimately led to improved brain *** findings offer novel insight into potential clinical treatments for traumatic cerebral cortex injuries.

关键词： adult endogenous neurogenesis basic fibroblast growth factor-hyaluronic acid collagen gel cortical remodeling functional recovery migration motor cortex injury neural circuits neural stem cells newborn neurons proliferation

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The circadian clock affects starvation resistance through the pentose phosphate pathway in silkworm, Bombyx mori

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INSECT SCIENCE 2025年第1期32卷 55-68页

作者： Dai, Tai-Ming Qiu, Jian-Feng Luo, Cheng Cui, wen-zhao Liu, Kai Li, Jiang-Lan Peng, Ruji Sima, Yang-Hu Xu, Shi-Qing Soochow Univ Suzhou Med Coll Sch Life Sci Suzhou 215123 Jiangsu Peoples R China Soochow Univ Inst Agr Biotechnol & Ecol IABE Suzhou Jiangsu Peoples R China

Disruption of the circadian clock can affect starvation resistance, but the molecular mechanism is still unclear. Here, we found that starvation resistance was significantly reduced in the core gene BmPer deficient mutant silkworms (Per(-/-)), but the mutant's starvation resistance increased with larval age. Under natural physiological conditions, the weight of mutant 5th instar larvae was significantly increased compared to wild type, and the accumulation ability of triglycerides and glycogen in the fat bodies was upregulated. However, under starvation conditions, the weight consumption of mutant larvae was increased and cholesterol utilization was intensified. Transcriptome analysis showed that beta-oxidation was significantly upregulated under starvation conditions, fatty acid synthesis was inhibited, and the expression levels of genes related to mitochondrial function were significantly changed. Further investigations revealed that the redox balance, which is closely related to mitochondrial metabolism, was altered in the fat bodies, the antioxidant level was increased, and the pentose phosphate pathway, the source of reducing power in cells, was activated. Our findings suggest that one of the reasons for the increased energy burden observed in mutants is the need to maintain a more robust redox balance in metabolic tissues. This necessitates the diversion of more glucose into the pentose phosphate pathway to ensure an adequate supply of reducing power.

关键词： Bombyx mori circadian clock oxidative stress pentose phosphate pathway starvation resistance

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知识青年上山下乡运动中的城乡经济关系--以上海知青安置地兴办小作坊为例

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安徽史学 2025年第1期 130-140页

作者：赵文上海市团校展馆教学管理部上海200083

1968年12月22日,毛泽东发出“知识青年到农村去”的号召,掀起了知识青年上山下乡运动的高潮。这一运动历时十多年,其间城市知青输出地与农村知青接收地之间不可避免地发生了种种经济往来与联系,有意或无意地打破了计划经济体制下国家对... 详细信息

1968年12月22日,毛泽东发出“知识青年到农村去”的号召,掀起了知识青年上山下乡运动的高潮。这一运动历时十多年,其间城市知青输出地与农村知青接收地之间不可避免地发生了种种经济往来与联系,有意或无意地打破了计划经济体制下国家对于物资流通等的严格规定和限制,勾连起现代化城市与偏远封闭乡村间的经济联系,一定程度上改变了当时二元对立、彼此割裂的城乡经济关系。这种改变随着1973年知青政策调整后“厂社挂钩”安置城镇知青的“株洲模式”的推广,在广度和深度上得到加强,出现了上海支援知青安置地兴办小作坊之类的新现象新变化。尽管如此,知青运动时期城乡经济关系的变化发展始终囿于“左”倾错误的影响,由此决定了它的不稳定性和脆弱性。

关键词：上海知识青年知青运动城乡经济关系上山下乡

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指向创新创造力培养的实验教学育人变革探索——基于开源硬件的电子天平制作及应用

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化学教学 2025年第1期 65-69页

作者：赵雯马力上海市教育委员会教育技术装备中心上海200070 上海外国语大学附属大境中学上海200011

结合编程教育,借助Arduino开源电子原型平台、单点式压力传感器元件、K型热电偶温度传感器元件、亚克力板等设计一款成本低廉、制作难度适中,可测温、传输数据、外接扩展其他传感器的电子天平,并就其在化学反应速率和结晶水含量测定等... 详细信息

结合编程教育,借助Arduino开源电子原型平台、单点式压力传感器元件、K型热电偶温度传感器元件、亚克力板等设计一款成本低廉、制作难度适中,可测温、传输数据、外接扩展其他传感器的电子天平,并就其在化学反应速率和结晶水含量测定等改进实验中的应用进行具体阐释与实践。为基于开源硬件设计制作的电子天平在教学上的应用,为创客式实验教学在化学学科的具体实践提供借鉴和参照。

关键词：开源硬件实验教学化学反应速率测定结晶水含量测定创客式实验设计

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全油气系统中的致密油气：成藏机理、富集规律与资源前景

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石油学报 2025年第1期46卷 1-16+47页

作者：贾承造姜林赵文中国石油天然气集团有限公司中国石油勘探开发研究院

全油气系统理论建立了统一的常规油气与非常规油气成藏机理、富集规律和地球动力学控制条件，致密油气是全油气系统的重要组成部分。通过回顾致密油气的发展历史，展望致密油气的资源前景，阐述中国典型致密油气藏的地质特征，从全油气... 详细信息

全油气系统理论建立了统一的常规油气与非常规油气成藏机理、富集规律和地球动力学控制条件，致密油气是全油气系统的重要组成部分。通过回顾致密油气的发展历史，展望致密油气的资源前景，阐述中国典型致密油气藏的地质特征，从全油气系统理论的视角揭示了致密油气的成藏机理与富集规律。研究结果表明：(1)中国致密油气资源前景广阔、开发潜力巨大，并在勘探开发领域取得了较大成果，但未来仍面临着巨大挑战，包括地质理论、工程技术以及提高采收率技术等。(2)致密油气的储层物性处在常规油气与页岩油气之间，其成藏过程同样处在常规油气与页岩油气之间；致密储层内由孔喉组成的复杂毛细管网络是致密油气自封闭成藏的核心。(3)中国不同含油气盆地中的油气资源呈现出鲜明的差异富集的特点，鄂尔多斯盆地是一个超级致密油气富集盆地；(4)基于源-储耦合关系，可以将致密油气藏分为“远源型”、“近源型”和“源内型”。

关键词：全油气系统致密油气自封闭成藏机理源-储耦合资源前景

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环糊精聚合物在食品分析样品前处理中的应用

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分析测试学报 2025年第1期44卷 34-42页

作者：王楠王媛宗帅赵文杰河南工业大学化学化工学院河南郑州450001 宁夏计量质量检验检测研究院宁夏银川750411

环糊精聚合物(CDPs)是由环糊精(CD)分子以化学键合等手段构筑的含有多个环糊精单元的高分子衍生物,不仅很好地保留了环糊精的包络识别性能,还兼具聚合物优良的机械强度、稳定性和化学可调性等优点。CDPs在样品前处理中具有广泛的应用潜... 详细信息

环糊精聚合物(CDPs)是由环糊精(CD)分子以化学键合等手段构筑的含有多个环糊精单元的高分子衍生物,不仅很好地保留了环糊精的包络识别性能,还兼具聚合物优良的机械强度、稳定性和化学可调性等优点。CDPs在样品前处理中具有广泛的应用潜力,选择性吸附与分离、高效去除污染物、可再生性与环保性等特性为其在环境保护、食品安全等领域的应用提供了有力支持。该文概括了不同的CDPs的合成方法及其在食品分析样品前处理领域的重要作用,通过与固相微萃取、磁性固相萃取、搅拌棒萃取等技术结合,CDPs能够有效地分离和富集食品中的目标分析物(如农药残留、食品添加剂和天然香味成分等)。并总结与展望了CDPs的发展现状和未来发展趋势。

关键词：环糊精环糊精聚合物样品前处理食品分析选择性吸附

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视觉语法视角下南京旅游英文官网多模态话语分析

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佳木斯大学社会科学学报 2025年第1期43卷 142-146页

作者：赵文彩铜陵学院安徽铜陵244000

以Gunther Kress和Theo van Leeuwen的视觉语法理论为分析框架,通过对南京旅游英文官网的案例研究,分析旅游网站多模态话语的再现意义、互动意义和构图意义。研究发现,南京旅游英文网站使用大量图片视觉符号资源构建意义,图片符号与文... 详细信息

以Gunther Kress和Theo van Leeuwen的视觉语法理论为分析框架,通过对南京旅游英文官网的案例研究,分析旅游网站多模态话语的再现意义、互动意义和构图意义。研究发现,南京旅游英文网站使用大量图片视觉符号资源构建意义,图片符号与文字符号协同作用,对观看者产生视觉上的冲击,达到良好的宣传效果。不足之处在于,叙事再现图片占比较低,人物参与者缺乏与观看者的正面接触,图片设计者多采用中、远镜头,虽客观呈现景物特点,但与观看者保持较为疏远的关系。建议网站丰富再现意义的类型,增加叙事再现的使用,增加参与者与观看者的正面接触;适当采取前景化、分割线等手段,借用近距离镜头将观看者代入到图片情境中。

关键词：视觉语法南京旅游英文官网多模态话语分析

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Probing the CMB cold spot through local Minkowski functionals

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Research in Astronomy and Astrophysics 2014年第6期14卷 625-634页

作者： wen zhao Key Laboratory for Researches in Galaxies and Cosmology Department of Astronomy University of Science and Technology of China

Both the Wilkinson Microwave Anisotropy Probe （WMAP） and Planck missions have reported an extremely cold spot （CS） centered at Galactic coordinate （1 = 209°, b = -57°） in the cosmic microwave background map. We study the lo- cal non-Gaussianity of the CS by defining local Minkowski functionals. We find that the third Minkowski functional v2 is quite sensitive to the non-Gaussianity caused by the CS. Compared with random Gaussian simulations, the WMAP CS deviates from Gaussianity at more than a 99% confidence level with a scale of R - 10°. Meanwhile, we find that cosmic texture provides an excellent explanation for these anomalies re- lated to the WMAP CS, which could be further tested by future polarization data.

关键词： cosmology: cosmic microwave background

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