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Facile preparation of a SiC@SiO_(2)nanowire-toughened ZrB_(2)-SiC/SiC bilayer coating with good interfacial bonding,high toughness,and excellent cyclic ablation resistance on C/CA composites

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Journal of Advanced Ceramics 2024年第4期13卷 486-495页

作者： Meng Yan Chenglong Hu Jian Li Shengyang Pang Bohui Sun Rida Zhao Bin Liang rui luo Sufang Tang Shi-Changxu Innovation Center for Advanced Materials Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering University of Science and Technology of ChinaShenyang 110016China

Preparing antioxidant coatings to address the inherent oxidation sensitivity of carbon fiber-reinforced carbon aerogel(C/CA)composites is a feasible way to promote their application in oxidizing environments as thermal insulation ***,preparing the coatings with excellent oxidation and ablation resistance while avoiding evident damage to the C/CA substrate still remains a ***,a SiC@SiO_(2)nanowire-toughened ZrB2–SiC/SiC bilayer coating with a large thickness of 500μm was prepared on C/CA using a one-step low-temperature reaction sintering method,which simultaneously formed a sintered outer layer with even-distributed nanowires and a siliconized gradient inner *** courtesy of the synergic thermal response of the layers and the crack deflection induced by the nanowires,the resulting coating has moderate residual compressive stress of 0.08–1.22 GPa in the interface,high interfacial bonding strength of 6.02 MPa,and good fracture toughness of 4.36 MPa·m^(1/2).Benefited from the optimum components and improved structure,the coating shows excellent cyclic ablation resistance with linear ablation rates of 0.1μm/s at 1650℃for 1500 s(300 s×5 cycles)and 0.4μm/s at 1850℃for 900 s(300 s×3 cycles).The one-step preparation strategy contributes to little damage to the substrate,thus showing the well-preserved mechanical and thermal insulation properties.

关键词： coating carbon fiber reinforced carbon aerogel(C/CA)composites toughness interface residual stress

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Monte Carlo method for evaluation of surface emission rate measurement uncertainty

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Nuclear Science and Techniques 2024年第7期35卷 126-136页

作者： Yuan-Qiao Li Min Lin Li-Jun Xu rui luo Yu-He Zhang Qian-Xi Ni Yun-Tao Liu China Institute of Atomic Energy Beijing102413China National Key Laboratory for Metrology and Calibration Techniques Beijing102413China Department of Radiation Oncology Hunan Cancer HospitalChangsha410031China The Affiliated Cancer Hospital of Xiangya School of Medicine Central South UniversityChangsha410031China

The aim of this study is to evaluate the uncertainty of 2πα and 2πβ surface emission rates using the windowless multiwire proportional counter *** study used the Monte Carlo method (MCM) to validate the conventional Guide to the Expression of Uncertainty in Measurement (GUM) method.A dead time measurement model for the two-source method was established based on the characteristics of a single-channel measurement system,and the voltage threshold correction factor measurement function was indirectly obtained by fitting the threshold correction *** uncertainty in the surface emission rate was calculated using the GUM method and the law of propagation of *** MCM provided clear definitions for each input quantity and its uncertainty distribution,and the simulation training was realized with a complete and complex mathematical *** results of the surface emission rate uncertainty evaluation for four radioactive plane sources using both methods showed the uncertainty’s consistency E_(n)<0.070 for the comparison of each source,and the uncertainty results of the GUM were all lower than those of the ***,the MCM has a more objective evaluation process and can serve as a validation tool for GUM results.

关键词： Surface emission rate Monte Carlo method Metrology Probability distribution function Dead time Low-energy loss correction Least-squares method

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Efficient removal of U(VI) from wastewater by a sponge-like 3D porous architecture with hybrid electrospun nanofibers

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Water Science and Engineering 2024年第2期17卷 150-156页

作者： Lin Hu Lin Chen Xian-kun Wu rui luo Rong-guan Lv Zheng-hao Fei Feng Yang School of Chemistry and Environmental Engineering Yancheng Teachers UniversityYancheng 224051China Jiangsu Province Engineering Research Center of Agriculural Breeding Pollution Control and Resource Yancheng 224051China Jiangsu Nanda Huaxing Science and Technology of Environmental Protection Co.Ltd. Yancheng 224001China

Removal of uranium(VI)from nuclear wastewater is urgent due to the global nuclear energy *** study synthesized novel sponge-like 3D porous materials for enhanced uranium adsorption by combining electrospinning and fibrous freeze-shaping *** materials possessed an organic-inorganic hybrid architecture based on the electrospun fibers of polyacrylonitrile(PAN)and SiO_(2).As a sup-porting material,the surface of fibrous SiO_(2) could be further functionalized by cyano groups via(3-cyanopropyl)*** the cyano groups were turned into amidoxime(AO)groups to obtain a amidoxime-functionalized sponge(PAO/SiO_(2)-AO)through the subsequent ami-doximation *** proposed sponge exhibited enhanced uranium adsorption performance with a high removal capacity of 367.12 mg/g,a large adsorption coefficient of 4.0×10^(4)mL/g,and a high removal efficiency of 97.59%.The UO_(2)^(2+)adsorption kinetics perfectly conformed to the pseudo-second-order *** sorbent also exhibited an excellent selectivity for UO_(2)^(2+) with other interfering metal ions.2023 Hohai *** and hosting by Elsevier B.V.

关键词： Uranium removal Sponge Amidoximation Organic-inorganic hybrid structure Electrospinning

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Reversible Mn^(2+)/Mn^(4+)double-electron redox in P3-type layer-structured sodium-ion cathode

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Journal of Energy Chemistry 2024年第2期89卷 79-88,I0004页

作者： Jie Zeng Jian Bao Ya Zhang Xun-Lu Li Cui Ma rui-Jie luo Chong-Yu Du Xuan Xu Zhe Mei Zhe Qian Yong-Ning Zhou Department of Materials Science Fudan UniversityShanghai 200433China Shanghai Xuanyi New Energy Development Co. LtdShanghai 201800China Global Institute of Future Technology Shanghai Jiao Tong UniversityShanghai 200240China

The balance between cationic redox and oxygen redox in layer-structured cathode materials is an important issue for sodium batteries to obtain high energy density and considerable cycle *** redox can contribute extra capacity to increase energy density,but results in lattice instability and capacity fading caused by lattice oxygen gliding and oxygen *** this work,reversible Mn^(2+)/Mn^(4+)redox is realized in a P3-Na_(0.65)Li_(0.2)Co_(0.05)Mn_(0.75)O_(2)cathode material with high specific capacity and structure stability via Co *** contribution of oxygen redox is suppressed significantly by reversible Mn^(2+)/Mn^(4+)redox without sacrificing capacity,thus reducing lattice oxygen release and improving the structure *** X-ray techniques reveal that P3 phase is well maintained in a wide voltage window of 1.5-4.5 V ***^(+)/Na even at 10 C and after long-term *** is disclosed that charge compensation from Co/Mn-ions contributes to the voltage region below 4.2 V and O-ions contribute to the whole voltage *** synergistic contributions of Mn^(2+)/Mn^(4+),Co^(2+)/Co^(3+),and O^(2-)/(O_n)^(2-)redox in P3-Na_(0.65)Li_(0.2)Co_(0.05)Mn_(0.75)O_(2)lead to a high reversible capacity of 215.0 m A h g^(-1)at 0.1 C with considerable cycle *** strategy opens up new opportunities for the design of high capacity cathode materials for rechargeable batteries.

关键词： Sodium batteries Cathode materials Layered structure Co substitution

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Transcriptome Analysis of Inflorescence Development at the Five-Leaf Stage in Castor(Ricinus communis L.)

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Phyton-International Journal of Experimental Botany 2024年第4期93卷 713-723页

作者： Yong Zhao Yaxuan Jiang Li Wen rui luo Guorui Li Jianjun Di Mingda Yin Zhiyan Wang Fenglan Huang Fanjuan Meng College of Life Science Baicheng Normal UniversityBaicheng137000China College of Life Science and Food Inner Mongolia University for the NationalitiesTongliao028000China College of Life Science Northeast Forestry UniversityHarbin150040China Key Laboratory of Castor Breeding of the State Ethnic Affairs Commission Inner Mongolia Minzu UniversityTongliao028043China Inner Mongolia Industrial Engineering Research Center of Universities for Castor Inner Mongolia Minzu UniversityTongliao028043China Inner Mongolia Key Laboratory of Castor Breeding and Comprehensive Utilization Inner Mongolia Minzu UniversityTongliao028000China Inner Mongolia Engineering Research Center of Industrial Technology Innovation of Castor Inner Mongolia Minzu UniversityTongliao028000China

The yield of castor is influenced by the type of inflorescence and the proportion of female ***,there are few studies on the genetic mechanism involved in the development and differentiation of castor *** this study,we performed transcriptomic analyses of three different phenotypes of inflorescences at the five-leaf *** comparison to the MI(complete pistil without willow leaves),290 and 89 differentially expressed genes(DEGs)were found in the SFI(complete pistil with willow leaves)and the BI(monoecious inflorescence),*** the DEGs,104 and 88 were upregulated in the SFI and BI,respectively,compared to the *** addition,186 DEGs and 1 DEG were downregulated in the SFI and BI compared to the ***,we conducted GO and KEGG enrichment analyses of the *** comparison to the MI,the SFI and BI exhibited the enrichment of functional branches in DEGs,specifically in pollen wall assembly,pollen development,and cellular component assembly involved in *** our study,RADL5 showed low expression levels between SFI-vs.-MI *** addition,we found that the expression of NAC in the SFI differed from that in MI and BI,and some genes related to hormonal signaling changed their expression levels during inflorescence *** results reveal the genetic mechanism of sex genotypes in castor,which will not only guide researchers in the breeding of castor but also provide a reference for genetic research on other flowering plants.

关键词： Ricinus communis L RNA-Seq inflorescence

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Effects of Heterologously Overexpressing PIP5K-Family Genes in Arabidopsis on Inflorescence Development

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Phyton-International Journal of Experimental Botany 2024年第1期93卷 97-117页

作者： Mingda Yin rui luo Tana Liang Qi Wen Xiaotian Liang Yanpeng Wen Xuemei Hu Zhiyan Wang Chang Gao Wenjing Ren Fenglan Huang College of Life Science and Food Engineering Inner Mongolia Minzu UniversityTongliao028000China Key Laboratory of Castor Breeding of the State Ethnic Affairs Commission Inner Mongolia Minzu UniversityTongliao028000China Inner Mongolia Industrial Engineering Research Center of Universities for Castor Inner Mongolia Minzu UniversityTongliao028043China Inner Mongolia Key Laboratory of Castor Breeding and Comprehensive Utilization Inner Mongolia Minzu UniversityTongliao028000China Inner Mongolia Engineering Research Center of Industrial Technology Innovation of Castor Inner Mongolia Minzu UniversityTongliao028000China

Castor is one of the top 10 oil crops in the world and has extremely valuable *** inflorescences directly affect yield,so the study of inflorescence development is very important in increasing castor *** previous studies have shown that the PIP5K gene family(PIP5Ks)is associated with inflorescence *** this study,to determine the function of each PIP5K gene in castor,a female Lm-type castor line,aLmAB2,was used to determine the relative expression levels of the PIP5Ks in castor *** PIP5K genes were heterologously overexpressed in Arabidopsis thaliana,the relative expression of each gene and the effect on plants was determined in ***,and the relationships among the PIP5Ks in castor were *** expression levels of the PIP5Ks in the female Lm-type castor line aLmAB2 were *** relative expression levels of the PIP5K9 and PIP5K11 genes were high(p<0.05)in isofemale inflorescences,and those of PIP5K1,PIP5K2,PIP5K6,and PIP5K8 were high(p<0.05)in female inflorescences but low(p<0.05)in bisexual *** PIP5Ks were heterologously overexpressed in ***,and T3-generation plants with stable genetic resistance,i.e.,AT-PIP5K^(+)plants(AT-PIP5K1^(+),AT-PIP5K2^(+),AT-PIP5K6^(+),AT-PIP5K8^(+),AT-PIP5K9^(+),and ATPIP5K11^(+) plants),were *** tests of the AT-PIP5K+plants showed that the growth of the main stem was significantly delayed in AT-PIP5K+plants compared with Columbia wild-type(WT)*** plants;the PIP5K1 and PIP5K2 genes promoted lateral stem growth and flower and silique development;and the PIP5K6,PIP5K8,PIP5K9 and PIP5K11 genes inhibited lateral stem growth and flower and silique *** correlations among PIP5Ks in castor suggest that there may be a synergistic relationship among PIP5K1,PIP5K2,and PIP5K6 in castor inflorescences,and PIP5K8,PIP5K9,and PIP5K11 are complementary to the other three genes.

关键词： Castor inflorescence development PIP5K gene family gene overexpression

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20世纪七八十年代英国的“醋酸甲羟孕酮注射液”(Depo-Provera)之争

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世界民族 2024年第1期 86-98页

作者：罗睿江苏海洋大学马克思主义学院连云港222000

20世纪七八十年代,英国社会开始推广长效避孕药“醋酸甲羟孕酮注射液”,由此引发了国内有色族裔女性的抗议。她们批判政府试图以该药物限制有色族裔人口的增长,并提出了三点依据:一是“消极优生学”论调的扩张;二是该药物在有色族裔妇... 详细信息

20世纪七八十年代,英国社会开始推广长效避孕药“醋酸甲羟孕酮注射液”,由此引发了国内有色族裔女性的抗议。她们批判政府试图以该药物限制有色族裔人口的增长,并提出了三点依据:一是“消极优生学”论调的扩张;二是该药物在有色族裔妇女中的滥用;三是药物知情同意权的缺失。基于这些观点,一些黑人女性主义者发起了诉求明确和形式多样的“反醋酸甲羟孕酮注射液”运动,赢得国内外的广泛支持,并最终促使英国政府禁止该药物的推行。这场持续了近20年的“醋酸甲羟孕酮注射液”之争,一方面集中体现了在战后移民浪潮中英国社会不断高涨的种族和移民排斥,以及对有色族裔人口上升与日俱增的焦虑;另一方面也凸显出英国有色族裔群体对自身处境的抗争,它不仅反映在生育权上,更包含对种族平等的诉求和身份认同的追求。直至今日,这种白人的焦虑与有色族裔的抗争,依然是英国多元文化主义困境的症结所在。

关键词：长效避孕药黑人女性种族主义女权运动

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家园记忆与期待:毕肖普旅行诗歌的景观书写

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河南师范大学学报（哲学社会科学版） 2024年第4期51卷 129-135页

作者：罗瑞周口师范学院外国语学院河南周口466000

景观作为一种文化意象,蕴涵着政治、历史、文化、记忆和家园情感,成为身份建构的重要动态媒介。伊丽莎白·毕肖普的旅行诗歌饱含丰富的地理人文景观,不仅承载着个人的家园记忆,更是诗人构建社会意识形态的载体,透射出现代人共通的家园... 详细信息

景观作为一种文化意象,蕴涵着政治、历史、文化、记忆和家园情感,成为身份建构的重要动态媒介。伊丽莎白·毕肖普的旅行诗歌饱含丰富的地理人文景观,不仅承载着个人的家园记忆,更是诗人构建社会意识形态的载体,透射出现代人共通的家园期待。毕肖普对沿途景观带来的家园失落感予以深刻反思,试图缓解现代人的身份焦虑,并藉由诗画景观绘制理想中的家园,彰显诗歌守护人类精神家园的重要使命。同时,以敏锐观察和理性沉思体认着旅行途中的自然景观,探赜人与自然、人与社会、人与自我的和谐共生。毕肖普把自己置于全球化语境中来确认地方身份,其旅行诗歌既有地域性又有世界性,景观书写中想象与现实的交融、理性与情感的平衡对于重构现代诗歌的人文精神、强化诗人的人文关怀具有一定的启示意义。

关键词：伊丽莎白·毕肖普旅行诗歌景观家园

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Effect of dietary with Zhibai dihuang pills and gonadotropinreleasing-hormone-analogue on girls with precocious and rapidly progressive puberty

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World Journal of Clinical Cases 2024年第24期12卷 5534-5541页

作者： Xue-Mei Wang Wei Li Liu-Qing Yang rui luo Chen-Chen Zhang Department of Pediatrics Ma’anshan Maternal and Child Health HospitalMa’anshan 243011Anhui ProvinceChina

BACKGROUND At present,the clinical mechanisms underlying precocious puberty remain unclear,making effective intervention for children experiencing this condition and rapidly progressive puberty *** To explore the effects of Zhibai dihuang pills and gonadotropin-releasing hormone analogue(GnRHa)on growth and ovarian function in girls with precocious *** The clinical data of 84 adolescent girls with precocious puberty and rapidly progressive puberty from February 2017 to August 2023 were retrospectively *** were divided into a control group and an observation group,with 42 cases in each *** control group received diet intervention combined with GnRHa treatment,while the observation group received diet intervention combined with Zhibai dihuang pills+GnRHa *** such as clinical efficacy,growth indicators,ovarian function,and adverse reactions were compared between the two *** The observation group showed superior clinical efficacy compared to the control group(P0.05).Post-intervention,the observation group exhibited significantly lower rates in growth,height,and bone age,along with reduced levels of progesterone,testosterone,estradiol,prolactin,luteinizing hormone,and follicle-stimulating hormone compared to the control group(P0.05).CONCLUSION Combining Zhibai dihuang pills with GnRHa and dietary intervention effectively improves growth,enhances ovarian function,and minimizes adverse reactions in adolescent girls with precocious and rapidly progressive puberty.

关键词： Zhibai dihuang pills Gonadotropin-releasing hormone analogue Dietary intervention Precocious puberty Rapidly progressive puberty Ovarian function

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Scintillation Arc from FRB 20220912A

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Science China(Physics,Mechanics & Astronomy) 2024年第1期67卷 134-142页

作者： Zi-Wei Wu Robert AMain Wei-Wei Zhu Bing Zhang Peng Jiang Jia-rui Niu Jin-Lin Han Di Li Ke-Jia Lee Dong-Zi Li Yuan-Pei Yang Fa-Yin Wang rui luo Pei Wang Chen-Hui Niu Heng Xu Bo-Jun Wang Wei-Yang Wang Yong-Kun Zhang Yi Feng De-Jiang Zhou Yong-Hua Xu Can-Min Deng Yu-Hao Zhu National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China Max-Planck-Institut für Radioastronomie Bonn 53121Germany Institute for Frontier in Astronomy and Astrophysics Beijing Normal UniversityBeijing 102206China Nevada Center for Astrophysics and Department of Physics and Astronomy University of NevadaLas VegasNV 89154USA CAS Key Laboratory of FAST National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China School of Astronomy University of Chinese Academy of SciencesBeijing 100049China NAOC-UKZN Computational Astrophysics Centre University of KwaZulu-NatalDurban 4000South Africa Department of Astronomy Peking UniversityBeijing 100871China Kavli Institute for Astronomy and Astrophysics Peking UniversityBeijing 100871China Cahill Center for Astronomy and Astrophysics California Institute of TechnologyPasadena 91125USA South-Western Institute For Astronomy Research Yunnan UniversityKunming 650504China School of Astronomy and Space Science Nanjing UniversityNanjing 210093China Key Laboratory of Modern Astronomy and Astrophysics(Nanjing University) Ministry of EducationNanjing 210023China CSIRO Space and Astronomy Epping 1710Australia Department of Astronomy School of Physics and Materials ScienceGuangzhou UniversityGuangzhou 510006China Research Center for Intelligent Computing Platforms Zhejiang LaboratoryHangzhou 311100China Yunnan Observatories Chinese Academy of SciencesKunming 650011China Guangxi Key Laboratory for Relativistic Astrophysics Department of PhysicsGuangxi UniversityNanning 530004China

We present the interstellar scintillation analysis of fast radio burst(FRB)20220912A during its extremely active episode in 2022using data from the Five-hundred-meter Aperture Spherical Radio Telescope(FAST).We detect a scintillation arc in the FRB’s secondary spectrum,which describes the power in terms of the scattered FRB signals’time delay and Doppler *** arc indicates that the scintillation is caused by a highly localized *** analysis favors a Milky Way origin of the ionized interstellar medium(IISM)for the localized scattering medium but cannot rule out a host galaxy *** present our method for detecting the scintillation arc,which can be applied generally to sources with irregularly spaced bursts or *** methods could help shed light on the complex interstellar environment surrounding the FRBs and in our Galaxy.

关键词： fast radio burst scintillation FRB 20220912A

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