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Detection of astrophysical gravitational wave sources by TianQin and LISA

Science China(Physics,Mechanics & Astronomy) 2024年第5期67卷 123-163页

作者： Alejandro Torres-Orjuela Shun-Jia Huang Zheng-Cheng Liang Shuai Liu Hai-Tian Wang chang-Qing Ye Yi-Ming Hu Jianwei Mei MOE Key Laboratory of Tian Qin Mission Tian Qin Research Center for Gravitational PhysicsSchool of Physics and AstronomyFrontiers Science Center for Tian QinGravitational Wave Research Center of CNSASun Yat-Sen University(Zhuhai Campus)Zhuhai 519082China Department of Physics The University of Hong KongHong Kong 999077China Kavli Institute for Astronomy and Astrophysics Peking UniversityBeijing100871China

TianQin and LISA are space-based laser interferometer gravitational wave(GW)detectors planned to be launched in the *** detectors will detect low-frequency GWs around 10^(-2)Hz;however,Tian Qin is more sensitive to frequencies above this common sweet-spot while LISA is more sensitive to frequencies below 10^(-2)***,Tian Qin and LISA will be able to detect the same sources but with different accuracy depending on the source and its *** consider some of the most important astrophysical sources—massive black hole binaries,stellar-mass black hole binaries,double white dwarfs,extreme mass ratio inspirals,light and heavy intermediate mass ratio inspirals,as well as the stochastic gravitational background of astrophysical origin—that Tian Qin and LISA will be able to *** each of these sources,we analyze how far they can be detected(detection distance)and how well their parameters can be measured(detection accuracy)using a Fisher Matrix *** compare the results obtained by the three detection scenarios(Tian Qin alone,LISA alone,and joint detection by LISA and Tian Qin)highlighting the gains from joint detection as well as the contribution of Tian Qin and LISA to a combined study of astrophysical *** particular,we consider the different orientations,lifetimes,and duty cycles of the two detectors to explore how they can give a more complete picture when working together.

关键词： wave extreme stochastic

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Rough set model based on variable universe

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CAAI Transactions on Intelligence Technology 2022年第3期7卷 503-511页

作者： Qingzhao kong Xueer chang Department of Science Jimei UniversityXiamenChina Digital Fujian Big Data Modeling and Intelligent Computing Institute XiamenChina

Rough set theory has a very good effect in information processing and knowledge *** an information table,the current scholars regard all objects as a universe,and then establish various rough set ***,in the analysis of many data problems,it is more reasonable to select parts of objects which are useful to us or can meet the actual needs as a ***,in order to make up for the deficiency of traditional models,a new model is introduced from the perspective of variable ***,some interesting properties of this model,such as approximation sets,reduct of attributes and maximum part of universe,are *** the study of this paper,it can be seen that the model developed in our paper is not only more accurate but also more effective in describing uncertain knowledge.

关键词： approximation universe describing

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Clinical associations of corneal neuromas with ocular surface diseases

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Neural Regeneration Research 2024年第1期19卷 140-147页

作者： Charmaine Jan Li Toh chang Liu Isabelle Xin Yu Lee Molly Tzu Yu Lin Louis Tong Yu-Chi Liu Lee kong Chian School of Medicine Nanyang Technological UniversitySingapore Singapore Eye Research Institute Singapore Department of Cornea and External Eye Disease Singapore National Eye CentreSingapore Ophthalmology and Visual Sciences Academic Clinical Program Duke-NUS Medical SchoolSingapore

Corneal neuromas,also termed microneuromas,refer to microscopic,irregula rly-shaped enlargements of terminal subbasal nerve endings at sites of nerve damage or *** formation of corneal neuromas results from damage to corneal nerves,such as following corneal pathology or corneal or intraocular surge ***,denervated areas of sensory nerve fibers become invaded by sprouts of intact sensory nerve fibers,and later injured axons regenerate and new sprouts called neuromas *** recent years,analysis of corneal nerve abnormalities including corneal neuromas which can be identified using in vivo confocal microscopy,a non-invasive imaging technique with microscopic resolution,has been used to evaluate corneal neuropathy and ocular surface *** neuromas have been shown to be associated with clinical symptoms of discomfort and dryness of eyes,and are a promising surrogate biomarker for ocular surface diseases,such as neuropathic corneal pain,dry eye disease,diabetic corneal neuropathy,neurotrophic keratopathy,Sjogren's syndrome,bullous keratopathy,post-refra ctive surgery,and *** this review,we have summarized the current literature on the association between these ocular surface diseases and the presentation of corneal microneuromas,as well as elaborated on their pathogenesis,visualization via in vivo confocal microscopy,and utility in monitoring treatment *** current quantitative analysis on neuromas mainly relies on manual annotation and quantification,which is user-dependent and labor-intensive,future direction includes the development of artificial intelligence software to identify and quantify these potential imaging biomarkers in a more automated and sensitive manner,allowing it to be applied in clinical settings more *** imaging and molecular biomarkers may also help elucidate the associations between corneal neuromas and ocular surface diseases.

关键词： cornea corneal diseases corneal nerve corneal neuropathy in vivo confocal microscopy microneuroma neuroma ocular surface diseases

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Bound state noise-like pulses generation from composite filtering effects

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Optoelectronics Letters 2024年

作者： chang Qingyu ZHANG Caishi College of Physics & Optoelectronic Engineering Jinan University Guangdong-Hong kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology School of Physics and Optoelectronic Engineering School of Innovation Engineering Macau University of Science and Technology

This paper demonstrated the generation of multi-wavelength bound state noise-like pulse (BNLP) in a dispersion-managed composite-filtered fiber laser consisting of Nonlinear Polarization Rotation (NPR) and Loop. In the case of BNLP， the generation is caused by the interaction between two noise-like pulses (NLPs )induced by the comb-filtering effect， and Bound state level can be artificially controlled in the researches. Our work provides a new method for generating low-coherence pulses and establishes a research idea for the study of the comb-filtering effects.

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METTL1 promotes colorectal cancer cell proliferation by attenuating CHEK2-induced G1/S phase arrest

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Genes & Diseases 2024年第2期11卷 579-581页

作者： Houxiang Jiang Ying Liu Huibin Song Jinquan Xia Ying Tian Luolin Wang Mingwei Li Zhenyu Xu Zhenglei Xu chang Zou Department of Gastrointestinal Surgery The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College)WuhuAnhui 241001China Anhui Province Clinical Research Center for Critical Respiratory Medicine WuhuAnhui 241001China Department of Clinical Medical Research Center The Second Clinical Medical College (Shenzhen People's Hospital) of Jinan UniversityThe First Affiliated Hospital of Southern University of Science and TechnologyShenzhenGuangdong 518020China Integrated Chinese and Western Medicine Postdoctoral Research Station Jinan UniversityGuangzhouGuangdong 510632China School of Pharmacy Southwest Medical UniversityLuzhouSichuan 646000China Department of Gastroenterology Shenzhen People's Hospital(The Second Clinical Medical CollegeJinan UniversityThe First Affiliated HospitalSouthern University of Science and Technology)ShenzhenGuangdong 518020China Precision Medicine Center The First Affiliated Hospital of Wannan Medical College(Yijishan Hospital of Wannan Medical College)WuhuAnhui 241001China School of Medicine Life and Health SciencesThe Chinese University of Hong KongShenzhenGuangdong 518172China

Colorectal carcinoma(CRC),the third most commonly diagnosed cancer,accounts for 9.7%of all newly diagnosed cancer cases and 9.4%of cancer-related deaths globally.1 Recent studies have demonstrated that post-transcriptional RNA modifications,such as N^(6)-methyladenosine,N^(5)-methylcytosine,and N^(7)-methylguanosine,play critical roles in the regulation of mRNA stability and translation,primary microRNA processing,and lncRNA-protein complex that contributes to the progression of human cancer.

关键词： cancer colorectal globally

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数字经济发展对旅游碳排放的影响效应与传导机制——基于智慧旅游试点城市的样本研究

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洛阳师范学院学报 2024年第7期43卷 10-15页

作者：吴昌祝王璐孔畅桂林理工大学旅游与风景园林学院广西桂林541000

在新发展格局下,数字经济已成为推动经济绿色发展和实现“双碳”目标的新引擎。在理论分析数字经济对旅游碳排放效应影响的基础上,利用32个智慧旅游试点城市2008—2021年的面板数据,构建数字经济指标体系,运用固定效应模型、调节效应模... 详细信息

在新发展格局下,数字经济已成为推动经济绿色发展和实现“双碳”目标的新引擎。在理论分析数字经济对旅游碳排放效应影响的基础上,利用32个智慧旅游试点城市2008—2021年的面板数据,构建数字经济指标体系,运用固定效应模型、调节效应模型检验数字经济对旅游碳排放的影响机制。结果显示,数字经济与旅游碳排放之间呈现“倒U形”的非线性关系,该结论经过内生性检验后仍然成立。机制分析表明,推动城市绿色创新、促进产业结构升级是数字经济实现旅游碳减排的重要途径。异质性分析表明,数字经济对大城市和中心城市的旅游碳减排效应更为显著。

关键词：数字经济旅游碳排放智慧旅游试点城市作用机制

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Microstructures and mechanical properties of laser-directed energy deposited CrCoNi medium-entropy alloy

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Rare Metals 2024年第7期43卷 3286-3300页

作者： Wen-Jie Zhao chang-Yu Liu Peng-Cheng Che Zhi-Liang Ning Hong-Bo Fan Jian-Fei Sun Yong-Jiang Huang Alfonso H.W.Ngan National Key Laboratory for Precision Hot Processing of Metals Harbin Institute of TechnologyHarbin 150001China Space Environment Simulation Research Infrastructure Harbin Institute of TechnologyHarbin 150001China Department of Mechanical Engineering The University of Hong KongHong Kong 999077China

The distinctive intrinsic heat treatment(IHT)originating from cyclic reheating in the laser-directed energy deposition(LDED) has attracted growing attention in recent *** this investigation,simulations and experimental characterizations were performed to examine the impact of IHT on the micros true ture and mechanical properties of LDED-fabricated CrCoNi medium-entropy alloy(MEA).The results show that the intensity of the IHT is proportional to the utilized laser energy density(LED).As the LED increased,significant dynamic recrystallization and grain refinement occurred within the alloy due to the enhanced intensity of ***,the high LED leads to severe hot cracking within the as-built MEA,resulting in inferior *** decreasing LED,the hot cracking was effectively ***,low LED weakened the intensity of IHT and consequently inhibited kinetic conditions of dynamic recrystallization,resulting in a heterogeneous grain structure characterized by multi-scale-sized *** structure provides significant hetero-deformation-induced hardening during plastic deformation,enabling the alloy to have a sustainable work-hardening *** expect that this work will have implications in taking full advantage of the unique IHT of the LDED process to fabricate ME As with excellent metallurgical quality and mechanical performance.

关键词： Intrinsic heat treatment Laser-directed energy deposition CrCoNi MEA Dynamic recrystallization Heterogeneous grain structure

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Microplastic exposure disturbs sleep structure,reduces lifespan,and decreases ovary size in Drosophila melanogaster

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Zoological Research 2024年第4期45卷 805-820页

作者： Wei Yan Zi-Jie Li Zi-Yi Lin Shu-Qin Ji William Ka Fai Tse Zhi-Qiang Meng chang Liu Lei Li Shenzhen-Hong kong Institute of Brain Science Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong 518000China CAS Key Laboratory of Brain Connectome and Manipulation the Brain Cognition and Brain Disease InstituteShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong 518000China Laboratory of Developmental Disorders and Toxicology Center for Promotion of International Education and ResearchFaculty of AgricultureKyushu UniversityFukuokaFukuoka 819-0395Japan Shenzhen Key Laboratory of Drug Addiction the Brain Cognition and Brain Disease InstituteShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong 518000China Guangdong Provincial Key Laboratory of Brain Connectome and Behavior Brain Cognition and Brain Disease InstituteShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong 518000China

The organ-specific toxicity resulting from microplastic(MP)exposure has been extensively explored,particularly concerning the gut,liver,testis,and ***,under natural conditions,these effects are not restricted to specific organs or *** whether MP exposure presents a systemic threat to an entire organism,impacting factors such as lifespan,sleep,and fecundity,is *** this study,we investigated the effects of dietary exposure to two different doses of MPs(1–5μm)using the terrestrial model organism Drosophila *** indicated that the particles caused gut damage and remained within the digestive *** MP exposure significantly shortened the lifespan of adult *** short-term exposure disrupted sleep patterns,increasing the length of daytime sleep ***,one week of MP exposure reduced ovary size,with a trend towards decreased egg-laying in mated *** MPs did not penetrate the brain or ovaries,transcriptome analysis revealed altered gene expression in these *** the ovary,Gene Ontology(GO)analysis indicated genotoxic effects impacting inflammation,circadian regulation,and metabolic processes,with significant impacts on extracellular structure-related *** the brain,GO analysis identified changes in pathways associated with proteolysis and carbohydrate ***,this study provides compelling evidence of the systemic negative effects of MP exposure,highlighting the urgent need to address and mitigate environmental MP pollution.

关键词： Microplastics Sleep Lifespan Reproduction Risk assessment Drosophila melanogaster

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荧光生物传感器用于多种真菌毒素同时检测的研究进展

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材料导报 2024年第10期38卷 52-62页

作者：孙青月余涛彭双凤孔德昭刘畅史巧巧李雅琪陈勇江苏科技大学生物技术学院江苏镇江212100 江苏科技大学环境与化学工程学院江苏镇江212100 江苏科技大学粮食学院江苏镇江212100 苏州中科先进技术研究院有限公司江苏苏州215123 华中科技大学环境科学与工程学院武汉430074

真菌毒素是真菌产生的次级代谢物,常见的主要有黄曲霉毒素、伏马毒素和赭曲霉毒素等多种真菌毒素。食品在储藏、加工或运输中易受真菌毒素侵染,且绝大多数情况下多种真菌毒素同时出现并形成叠加效应产生剧毒,引发食品安全问题,严重危害... 详细信息

真菌毒素是真菌产生的次级代谢物,常见的主要有黄曲霉毒素、伏马毒素和赭曲霉毒素等多种真菌毒素。食品在储藏、加工或运输中易受真菌毒素侵染,且绝大多数情况下多种真菌毒素同时出现并形成叠加效应产生剧毒,引发食品安全问题,严重危害人类身体健康。因此,对食品中多种真菌毒素的同时检测十分重要。荧光纳米生物传感器具有响应快、检测便捷无干扰、无需参比等优点,在生物分析领域被广泛应用。本文综述了国内外荧光生物传感器检测真菌毒素的研究进展,特别是真菌毒素的多重同时检测,重点介绍荧光生物传感器的类型、组成等方面和以适配体、免疫检测技术为基础的检测方法及其策略,在此基础上,讨论了现有真菌毒素检测的局限性和面临的挑战,展望未来的研究方向,以期为真菌毒素检测研究提供理论支持。

关键词：生物传感器多重检测真菌毒素荧光信号

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自生黄铁矿指示海底甲烷渗漏

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地球科学进展 2024年第6期39卷 589-601页

作者：张企盈苗晓明常鑫孔凡兴谷玉刘喜停中国海洋大学海洋地球科学学院海底科学与探测技术教育部重点实验室山东青岛266100 青岛海洋科技中心海洋地质过程与环境功能实验室山东青岛266237

海底甲烷渗漏是海洋环境中甲烷的重要来源,对全球碳循环和极端环境生物地球化学循环具有重要影响,示踪和重建海底(古)甲烷渗漏活动具有重要的科学意义。在甲烷渗漏活动过程中,硫酸盐驱动的甲烷厌氧氧化作用普遍发育,从而改变孔隙水地球... 详细信息

海底甲烷渗漏是海洋环境中甲烷的重要来源,对全球碳循环和极端环境生物地球化学循环具有重要影响,示踪和重建海底(古)甲烷渗漏活动具有重要的科学意义。在甲烷渗漏活动过程中,硫酸盐驱动的甲烷厌氧氧化作用普遍发育,从而改变孔隙水地球化学特征,并导致自生矿物的形成。其中,自生黄铁矿是硫酸盐驱动的甲烷厌氧氧化作用的典型自生矿物之一,可作为记录甲烷渗漏活动的良好指标。综述了硫酸盐驱动的甲烷厌氧氧化作用衍生自生黄铁矿的地球化学特征和形貌特征,评估了其在示踪和重建海底(古)甲烷渗漏活动的潜力。结果表明,自生黄铁矿的硫和铁同位素及原位微量元素和同位素可以有效识别硫酸盐驱动的甲烷厌氧氧化作用过程,甲烷渗漏环境沉积物中自生黄铁矿的形貌和含量与正常海洋沉积物存在明显差异,彰显了自生黄铁矿示踪和重建海底(古)甲烷渗漏事件的巨大潜力。

关键词：甲烷渗漏自生黄铁矿硫同位素微量元素微生物硫酸盐还原

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