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The high-amplitude δ Scuti variable CY Aqr is probably a triple system

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Research in Astronomy and Astrophysics 2016年第6期16卷 105-112页

作者： Wei-Jing Fang Zhi-Quan luo Xiao-Bin Zhang Li-Cai Deng Kun Wang yang-ping luo yang Pan Yin-Jiang Peng Physics and Space Science College China West Normal University Key Laboratory of Optical Astronomy National Astronomical ObservatoriesChinese Academy of Sciences

Data representing 864 times of light maxima of the high-amplitude δ Scuti star CY Aqr were col- lected from the literature, based on which, long-term period changes of the variable star were investigated. A revised period and new ephemerides were given for the pulsating star. Remarkable cyclic variations were found in the O - C residuals which can be attributed to the light-time effects due to probable unseen com- ponents of the object. By using Kopal＇s method, the orbital parameters of the supposed component stars were derived. The solution suggests that CY Aqr is very probably in a triple system orbited eccentrically by two low-mass companions with periods of 54.2 and 47.3 yr. The lower limits on masses were estimated as 0.04 Me and 0.02 Me, respectively, for the two hidden companions.

关键词： methods data analysis -- stars variables δ Scuti -- stars individual (CY Aqr)

Physical Properties of 29 sdB+dM Eclipsing Binaries in Zwicky Transient Facility

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Research in Astronomy and Astrophysics 2022年第3期22卷 221-245页

作者： Min Dai Xiao-Dian Chen Kun Wang yang-ping luo Shu Wang Li-Cai Deng School of Physics and Astronomy China West Normal UniversityNanchong 637002China CAS Key Laboratory of Optical Astronomy National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China School of Astronomy and Space Science University of the Chinese Academy of SciencesBeijing 101408China

The development of large-scale time-domain surveys provides an opportunity to study the physical properties as well as the evolutionary scenario of B-type subdwarfs(sdBs)and M-type dwarfs(dMs).Here,we obtained 33 sdB+dM eclipsing binaries based on the Zwicky Transient Facility(ZTF)light curves and Gaia Early Data Release3(EDR3)*** using the PHOEBE code for light curve analysis,we obtain probability distributions for parameters of 29 sdB+dMs.R1,R2 and i are well determined,and the average uncertainty of mass ratio q is *** parameters are in good agreement with previous works if a typical mass of sdB is *** on parameters of 29 sdB+dMs,we find that both the mass ratio q and the companion’s radius R2 decrease with the shortening of the orbital *** the three sdB+dMs with orbital periods less than 0.075 days,their companions are all brown *** masses and radii of the companions satisfy the mass–radius relation for low-mass stars and brown *** with radii between 0.12 R_(⊙)and 0.15 R_(⊙)seem to be missing in the *** more short-period sdB+dM eclipsing binaries are discovered and classified in the future with ZTF and Gaia,we will have more information to constrain the evolutionary ending of sdB+dMs.

关键词： (stars:)binaries:eclipsing stars:evolution (stars:)subdwarfs (stars:)brown dwarfs

NSVS 1908107, an EB-type eclipsing binary in the open cluster NGC 869

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Research in Astronomy and Astrophysics 2016年第7期16卷 77-82页

作者： yang Pan Zhi-Quan luo Xiao-Bin Zhang Li-Cai Deng Kun Wang yang-ping luo Wei-Jing Fang Yin-Jiang Peng Jin-Jiang Sun Qi-Li Liu Qiang Zhou Physics and Space Science College China West Normal University Key Laboratory of Optical Astronomy National Astronomical Observatories Chinese Academy of Sciences Purple Mountain Observatory Chinese Academy of Sciences

We present a time-series BV CCD photometry for an EB-type eclipsing binary NSVS 1908107, a member of the young open cluster NGC 869. The photometric solution was obtained by using the 2003 version of the Wilson-Devinney code. It reveals that the system is a semi-detached binary with the secondary component filling its Roche lobe. The mass ratio was determined to be 0.059±0.001. With the physical parameters of the cluster, the masses, radii and luminosities of the two components of NSVS 1908107 are estimated to be M1 = 10.34±2.29 M⊙, R1 = 4.65re±0.34 Rspectivel⊙, L1 = 8076 y. The results s±371 L = 2.40 how tha⊙and M2 = 0.61 t the secondary co±0.13M⊙, R2±0.17 R⊙, L2 = 1054±48 L⊙mponent could be a giant or subgiant star with the outer envelope being stripped.

关键词： binaries eclipsing binaries semi-detached stars giant stars individual(NSVS 1908107)

LT(K63/R72),a New Mutant of Escherichia coli Heat-labile Enterotoxin,Exhibits Characteristics More Similar to LT(K63)than LT(R72)

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Acta Biochimica et Biophysica Sinica 2005年第2期37卷 126-132页

作者： Qiang FENG Jun yang ping luo Wei-Jun ZHANG Quan-Ming ZOU Department of Clinical Microbiology and Immunology.Third Military Medical University.Chongqing 400038.China Department of Life Sciences and Chemistry,Chongqing Education College.Chongqing 400067,China Department of Clinical Microbiology and Immunology Third Military Medical University Chongqing 400038 China Department of Life Sciences and Chemistry Chongqing Education College Chongqing 400067 China

LT(K63),a non-toxic mutant and LT(R72),a low toxic mutant of *** heat-labile enterotoxinare frequently used mucosal *** many cases,the adjuvanticity of LT(K63)is lower than that of LT(R72),but LT(K63),which induces a mixed Th1/Th2 response,exhibits a higher level of protection than LT(R72)which induces a polarized Th2-type *** utilize the advantages of both adjuvants,a double-mutation LT(K63/R72)was generated and *** characterization results showed that there was nosignificant difference in production rate and immunogenicity between wild type LT and LT *** also showed that the toxicity and the trypsin sensitivity of LT(K63/R72)are between that of LT(K63)and LT(R72).Using HPLC,when samples in an OHpak SB-800 column were eluted by denatural buffer(TEAN containing 10mg/ml SDS),we found the stability of LT(K63/R72)was higher than that of LT(R72)and lower than that of LT(K63).Through further analyzes,we found that LT(K63/R72)exhibits character-istics more closely related to LT(K63)than LT(R72).

关键词： Escherichia coli heat-labile enterotoxin mutants LT(K63) LT(R72) LT(K63/R72)

Stochastic Augmented-Based Dual-Teaching for Semi-Supervised Medical Image Segmentation

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Computers, Materials & Continua 2025年第1期82卷 543-560页

作者： Hengyang Liu yang Yuan Pengcheng Ren Chengyun Song Fen luo School of Computer Science and Engineering Chongqing University of TechnologyChongqing400054China College of Artificial Intelligence Chongqing Technology and Business UniversityChongqing400067China

Existing semi-supervisedmedical image segmentation algorithms use copy-paste data augmentation to correct the labeled-unlabeled data distribution ***,current copy-paste methods have three limitations:(1)training the model solely with copy-paste mixed pictures from labeled and unlabeled input loses a lot of labeled information;(2)low-quality pseudo-labels can cause confirmation bias in pseudo-supervised learning on unlabeled data;(3)the segmentation performance in low-contrast and local regions is less than *** design a Stochastic Augmentation-Based Dual-Teaching Auxiliary Training Strategy(SADT),which enhances feature diversity and learns high-quality features to overcome these *** be more precise,SADT trains the Student Network by using pseudo-label-based training from Teacher Network 1 and supervised learning with labeled data,which prevents the loss of rare labeled *** introduce a bi-directional copy-pastemask with progressive high-entropy filtering to reduce data distribution disparities and mitigate confirmation bias in *** the mixed images,Deep-Shallow Spatial Contrastive Learning(DSSCL)is proposed in the feature spaces of Teacher Network 2 and the Student Network to improve the segmentation capabilities in low-contrast and local *** this procedure,the features retrieved by the Student Network are subjected to a random feature perturbation *** two openly available datasets,extensive trials show that our proposed SADT performs much better than the state-ofthe-art semi-supervised medical segmentation *** only 10%of the labeled data for training,SADT was able to acquire a Dice score of 90.10%on the ACDC(Automatic Cardiac Diagnosis Challenge)dataset.

关键词： Semi-supervised medical image segmentation contrastive learning stochastic augmented

Mesh-supported V2O5-WO3/TiO2 nanosheet array catalysts for efficient removal of NOx

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Tungsten 2025年第1期7卷 100-111页

作者： Zhi-Qi Zhang Liu yang Wen luo Vladimir An Jing Li Bao-Dan Liu School of Materials Science and Engineering Northeastern University Foshan Graduate School of Innovation Northeastern University Kizhner Research Center School of Advanced Manufacturing Technologies Tomsk Polytechnic University

The design and synthesis of vanadium-based denitration catalysts with low-temperature activity pose significant challenges in the field of toxic gas *** this study,we have developed a novel approach to fabricate highly efficient V2O5-WO3/TiO2monolithic mesh catalysts for NOxreduction at low ***,TiO2nanosheets with strong adhesion and large surface area were grown on Ti mesh using plasma electrolytic oxidation technology and hydrothermal ***,super-small traces of WO3and V2O5active nano-species were subsequently deposited on TiO2nanosheets using the deposition-precipitation *** to traditional ceramic-based V2O5-WO3/TiO2catalysts,our V2O5-WO3/TiO2monolithic mesh catalyst exhibits superior mechanical performance,excellent thermal conductivity,lower pressure drop,higher utilization of active components,and stronger synergistic ***,the V2O5-WO3/TiO2monolithic mesh catalysts exhibited excellent low-temperature catalytic activity with 98% of NOxconversion at 220℃,and remarkable long-term SO2tolerance and water resistance in the selective catalytic reduction（SCR） of NOxwith *** SCR reaction of tiny V2O5and WO3active species supported on TiO2nanosheets directly demonstrated to follow the Eley-Rideal mechanism by in situ infrared spectra.

关键词： Low temperature activity Monolithic mesh catalysts NH3-SCR SO2 tolerance V2O5-WO3/TiO2

Exploring practical methods for detecting k-nonseparability in multipartite quantum states

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 255-256页

作者： Shunlong luo Academy of Mathematics and Systems Science Chinese Academy of Sciences

Quantum entanglement, referred to as “spooky action at a distance” by Einstein, is not only an intriguing and fascinating feature of quantum theory challenging our classical intuitions about locality and correlations, but also has practical and profound implications for quantum technologies. Initially described by Einstein, Podolsky and Rosen, as well as by Schro¨dinger, entanglement now has become a basic and crucial ingredient for both foundational and experimental investigations of the quantum world.

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Targeting capabilities of engineered extracellular vesicles for the treatment of neurological diseases

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Neural Regeneration Research 2025年第11期20卷 3076-3094页

作者： Xinyu yang Xiangyu Gao Xiaofan Jiang Kangyi Yue Peng luo Department of Neurosurgery Xijing HospitalFourth Military Medical UniversityXi’anShaanxi ProvinceChina

Recent advances in research on extracellular vesicles have significantly enhanced their potential as therapeutic agents for neurological *** to their therapeutic properties and ability to cross the blood–brain barrier,extracellular vesicles are recognized as promising drug delivery vehicles for various neurological conditions,including ischemic stroke,traumatic brain injury,neurodegenerative diseases,glioma,and ***,the clinical application of natural extracellular vesicles is hindered by their limited targeting ability and short clearance from the *** address these limitations,multiple engineering strategies have been developed to enhance the targeting capabilities of extracellular vesicles,thereby enabling the delivery of therapeutic contents to specific tissues or ***,this review aims to highlight the latest advancements in natural and targeting-engineered extracellular vesicles,exploring their applications in treating traumatic brain injury,ischemic stroke,Parkinson's disease,Alzheimer's disease,amyotrophic lateral sclerosis,glioma,and ***,we summarized recent clinical trials involving extracellular vesicles and discussed the challenges and future prospects of using targeting-engineered extracellular vesicles for drug delivery in treating neurological *** review offers new insights for developing highly targeted therapies in this field.

关键词： Alzheimer's disease amyotrophic lateral sclerosis engineered extracellular vesicles glioma ischemic stroke neurological diseases Parkinson's disease psychosis targeted drug delivery traumatic brain injury

谁能理解女博士生?——探究女博士生的社会焦虑与治理

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河北师范大学学报（教育科学版） 2018年第1期20卷 56-61页

作者：何阳孙萍罗开文东北大学文法学院辽宁沈阳110819 西华师范大学政治与行政学院四川南充637009

通过对调查问卷和无结构化访谈记录的分析,发现游离在男性与女性边缘,被冠以"第三性"称谓的多数女博士生存在社会焦虑现象。引发她们焦虑的原因复杂多样,博士小论文、博士大论文、就业形势、经济条件、健康状况、社交关系、课题任务和... 详细信息

通过对调查问卷和无结构化访谈记录的分析,发现游离在男性与女性边缘,被冠以"第三性"称谓的多数女博士生存在社会焦虑现象。引发她们焦虑的原因复杂多样,博士小论文、博士大论文、就业形势、经济条件、健康状况、社交关系、课题任务和年龄等都不同程度地发挥着作用,但博士小论文、博士大论文、就业形势和课题任务的影响面相对较广。倘将女博士生的社会焦虑细分为生活焦虑、发展焦虑、健康焦虑、社交焦虑与年龄焦虑,那么发展焦虑则是女博士生的主要焦虑。要缓解女博士生的发展焦虑,须加强入学教育,引起女博士生的重视,适当降低博士生发表小论文的毕业标准,营造女博士生的良好就业形势,尊重女博士生参与科研课题的意愿。

关键词：女性博士生社会焦虑治理