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The direct synthesis of Ni/SAPO-11 hydroisomerization catalyst via a novel two-step crystallization strategy

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Petroleum Science 2022年第5期19卷 2448-2459页

作者： Wei-Long Zhan Yu-Chao Lyu xin-mei liu Lei Fan Fu-Rang Li Ye Yang State Key Laboratory of Heavy Oil Processing China University of PetroleumQingdao266580China College of Chemical Engineering China University of PetroleumQingdao266580China

The Ni/SAPO-11 catalyst used for n-hexane hydroisomerization was prepared via a novel two-step crystallization *** involves introduction of nickel salt into the pre-crystalized system of SAPO-11 by grinding followed by a second crystallization *** extra solvent is introduced during the whole synthesis procedure which reduces waste liquid emissions *** importantly,interaction between nickel and support is effectively regulated by the novel method to achieve a well dispersed nickel species and inhibit formation of inert nickel spinel *** environments of framework Si are tuned to enhance surface acidity of the Ni/SAPO-11 *** also shows smaller particle size which favors fast diffusion of reactants and *** into the two-step crystallization indicate that accumulation of SAPO-11 precursors in the pre-crystallization stage,pH regulation by nickel salt and structural directing effect of Ni2+during the second crystallization period account for the rapid crystal growth and smaller particle size of the Ni/SAPO-11 *** the unique features endow the Ni/SAPO-11 catalyst higher activity and isomers selectivity than the Pt/SAPO-11 catalyst in n-hexane hydroisomerization.

关键词： Two-step crystallization Hydroisomerization catalyst Nickel SAPO-11 Synthesis

Association between gestational anemia in different trimesters and neonatal outcomes:a retrospective longitudinal cohort study

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World Journal of Pediatrics 2021年第2期17卷 197-204页

作者： Chang-Fa Sun Han liu Yan-Hui Hao Hong-Tao Hu Zhi-Yang Zhou Ke-xin Zou xin-mei liu Jian-Zhong Sheng Guo-Lian Ding He-Feng Huang The International Peace Maternity and Child Health Hospital School of MedicineShanghai Jiao Tong University910 Hengshan RoadShanghai 200030China Shanghai Key Laboratory of Embryo Original Diseases ShanghaiChina Department of Pathology and Pathophysiology School of MedicineZhejiang UniversityHangzhouChina Department of Gynecology and Obstetrics The First Affiliated Hospital of Nanjing Medical UniversityNanjingChina

Background Previous studies investigated the association between gestational anemia and neonatal ***,few studies explored whether the effects of gestational anemia could be eliminated by subsequent correction of anemia in the later stages of *** study aimed to investigate the relationship between anemia in different trimesters and neonatal *** The study was conducted in Shanghai,China,with a sample of 46,578 pregnant women who delivered between January 1,2016 and July 1,2019.A multivariable logistic regression model was adopted to analyse the associations between maternal anemia and neonatal *** The incidence of gestational anemia was 30.2%,including 4.4%in the first trimester,9.6%in the second trimester,and 16.2%in the third *** 24.5%(507/2066)of anemia that occurred in the first trimester and 29.6%(1320/4457)that occurred in the second trimester could be corrected in the later stages of *** occurring in the first trimester was associated with small for gestational age[odds ratio(OR)1.46;95%confidence interval(CI)1.20-1.78]and with fetal distress(OR 1.23;95%CI 1.08-1.40).Anemia corrected in the first trimester also was associated with a higher risk of small for gestational *** Gestational anemia is a public health problem in China impacting neonatal *** in pregnancy could be corrected in only about a quarter of the *** in the first trimester,whether corrected or not,still led to lower birth weight;therefore,the prevention of anemia prior to pregnancy is important.

关键词： Hemoglobin Iron deficiency Low birth weight Preterm birth Small for gestational age

A missense mutation in the androgen receptor gene causing androgen insensitivity syndrome in a Chinese family

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Asian Journal of Andrology 2017年第2期19卷 260-261页

作者： Lin Li Wen-Miao liu mei-xin liu Shu-QiZheng Ji-Xia Zhang Feng-Yuan Che Shi-Guo liu Department of Genetics Counseling Genetics Institute of Linyi People's Hospital Linyi 276003 Shandong China Department of Clinical Laboratory Diagnosis Medical College of Qingdao University Qingdao 266003 Shandong China Department of Ultrasonography The Affiliated Hospital of Qingdao University Qingdao 266003 Shandong China Department of Neurology Linyi People's Hospital Linyi 276003 Shandong China Department of Prenatal Diagnosis Center The Affiliated Hospital of Qingdae University Qingdao 266003 Shandong China

Dear Editor, Androgen Insensitivity Syndrome （AIS） is an X-linked recessive genetic disorder presenting as male pseudohermaphroditism with gender ambiguity or reversal. According to the reaction to androgens, subje... 详细信息

关键词： missense mutation androgen receptor Chinese family

Long interpregnancy interval and adverse perinatal outcomes: a retrospective cohort study

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Science China(Life Sciences) 2020年第6期63卷 898-904页

作者： Jing Lin Han liu Dan-Dan Wu Hong-Tao Hu Hui-Hui Wang Cheng-Liang Zhou xin-mei liu Xiao-Jun Chen Jian-Zhong Sheng He-Feng Huang International Peace Maternity and Child Health Hospital School of MedicineShanghai Jiao Tong UniversityShanghai 200030China Institute of Embryo-Fetal Original Adult Disease Shanghai Key Laboratory for Reproductive MedicineSchool of MedicineShanghai Jiao Tong UniversityShanghai 200030China Shanghai Key Laboratory of Embryo Original Disease Shanghai 200030China Department of Pathology and Pathophysiology School of MedicineZhejiang UniversityHangzhou 310058China

We conducted a retrospective cohort study of 9,552 women experiencing their second delivery between 2014 and 2016 at the International Peace Maternity and Child Health Hospital to investigate the association between the interpregnancy interval(IPI)and adverse perinatal outcomes. With the 12–23-mon IPI as the reference category, logistic regression analyzes were used to examine associations between different IPIs(<12, 12–23, 24–59, 60–119, and ≥120 mon) and perinatal outcomes(gestational diabetes mellitus, premature membrane rupture, gestational hypertension, preterm birth, low birth weight, and macrosomia).Compared with the 12–23-mon IPI category, women with longer IPIs had a higher risk of adverse perinatal outcomes, and those with an IPI ≥120 mon had the highest risk of gestational diabetes mellitus and premature membrane rupture(adjusted odds ratio(OR) 1.76, 95% confidence interval(CI) 1.32–2.35 and adjusted OR 2.03, 95% CI 1.53–2.67, respectively). These results indicate that a longer IPI is associated with a higher risk of adverse perinatal outcomes and an IPI of ≥120 mon appears to be independently associated with a higher risk of gestational diabetes mellitus and premature membrane rupture.

关键词： interpregnancy interval perinatal outcomes gestational diabetes mellitus premature membrane rupture

Basonuclin 1 deficiency causes testicular premature aging: BNC1 cooperates with TAF7L to regulate spermatogenesis

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Journal of Molecular Cell Biology 2020年第1期12卷 71-83页

作者： Jing-Yi Li Yi-Feng liu Hai-Yan Xu Jun-Yu Zhang Ping-Ping Lv Miao-E liu Yan-Yun Ying Ye-Qing Qian Kun Li Cheng Li Yun Huang Gu-Feng Xu Guo-Lian Ding Yu-Chan Mao Chen-Ming Xu xin-mei liu Jian-Zhong Sheng Dan Zhang He-Feng Huang Key Laboratory of Reproductive Genetics(Ministry of Education)and Department of Reproductive Endocrinology Women's HospitalZhejiang University School of MedicineHangzhou 310006China International Peace Maternal and Child Health Hospital Shanghai Jiao Tong UniversityShanghai 200030China Department of Pathology&Pathophysiology Zhejiang University School of MedicineHangzhou 310000China

Basonuclin(BNC1)is expressed primarily in proliferative keratinocytes and gametogenic ***,its roles in spermatogenesis and testicular aging were not *** we discovered a heterozygous BNC1 truncation mutation in a premature ovarian insufficiency *** this study,we found that male mice carrying the truncation mutation exhibited progressively fertility loss and testicular premature ***-wide expression profiling and direct binding studies(by chromatin immunoprecipitation sequencing)with BNC1 in mouse testis identified several spermatogenesis-specific gene promoters targeted by BNC1 including kelch-like family member 10(Klhl1O),testis expressed 14(Tex14)9 and spermatogenesis and centriole associated 1(Spatcl).Moreover,biochemical analysis showed that BNC1 was associated with TATA-box binding protein-associated factor 7 like(TAF7L),a germ cell-specific paralogue of the transcription factor IID subunit TAF7,both in vitro and in testis,suggesting that BNC1 might directly cooperate with TAF7L to regulate *** truncation mutation disabled nuclear translocation of the BNC1/TAF7L complex,thus,disturbing expression of related genes and leading to testicular premature ***,expressions of Y-box-binding protein 2(YBX2),outer dense fiber of sperm tails 1(ODfl),and glyceraldehyde-3-phosphate dehydrogenase,spermatogenic(GAPDHS)were significantly decreased in the testis of men with non-obstructive *** present study adds to the understanding of the physiology of male reproductive aging and the mechanism of spermatogenic failure in infertile men.

关键词： testicular aging spermatogenesis BNC1 TAF7L gene mutation

Research status and prospects of the fractal analysis of metal material surfaces and interfaces

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 20-38页

作者： Qinjin Dai Xuefeng liu xin Ma Shaojie Tian Qinghe Cui Beijing Advanced Innovation Center for Materials Genome Engineering University of Science and Technology BeijingBeijing 100083China Beijing Laboratory of Metallic Materials and Processing for Modern Transportation University of Science and Technology BeijingBeijing 100083China Laboratory for Advanced Materials Processing of Ministry of Education University of Science and Technology BeijingBeijing 100083China School of Mechanical and Electrical Engineering Xinjiang Institute of EngineeringUrumqi 830023China

As a mathematical analysis method,fractal analysis can be used to quantitatively describe irregular shapes with self-similar or self-affine *** analysis has been used to characterize the shapes of metal materials at various scales and *** methods make it difficult to quantitatively describe the relationship between the regular characteristics and properties of metal material surfaces and ***,fractal analysis can be used to quantitatively describe the shape characteristics of metal materials and to establish the quantitative relationships between the shape characteristics and various properties of metal *** the perspective of two-dimensional planes and three-dimensional curved surfaces,this paper reviews the current research status of the fractal analysis of metal precipitate interfaces,metal grain boundary interfaces,metal-deposited film surfaces,metal fracture surfaces,metal machined surfaces,and metal wear *** relationship between the fractal dimensions and properties of metal material surfaces and interfaces is *** from three perspectives of fractal analysis,namely,research scope,image acquisition methods,and calculation methods,this paper identifies the direction of research on fractal analysis of metal material surfaces and interfaces that need to be *** is believed that revealing the deep influence mechanism between the fractal dimensions and properties of metal material surfaces and interfaces will be the key research direction of the fractal analysis of metal materials in the future.

关键词： metal material surfaces and interfaces fractal analysis fractal dimension homogeneity

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甲状腺癌分子诊断标志物的研究进展

医学与哲学（B） 2017年第6期38卷 67-71页

作者：霍美蓉刘欣首都医科大学基础医学院首都医科大学基础医学院医学遗传学系北京100069

甲状腺癌是内分泌系统最常见的恶性肿瘤之一。细针穿刺细胞学检查(FNA)是术前鉴别甲状腺良恶性结节的金指标,但仍存在25%~30%的细胞学检查不能确定的结节,需要进一步行分子标志物检测以提高诊断准确性。研究表明许多分子标志物能为甲状... 详细信息

甲状腺癌是内分泌系统最常见的恶性肿瘤之一。细针穿刺细胞学检查(FNA)是术前鉴别甲状腺良恶性结节的金指标,但仍存在25%~30%的细胞学检查不能确定的结节,需要进一步行分子标志物检测以提高诊断准确性。研究表明许多分子标志物能为甲状腺癌的风险评估提供依据,可用于为甲状腺癌患者提供更好的预后管理。目前,单独的基因标志物的研究较为广泛,非编码RNA是潜在的诊断标志,而多分子联合诊断可大大提高诊断的精确率。相关分子标志物的研究用于甲状腺癌术前诊断和预后判断,具有广泛前景。

关键词：甲状腺结节分子诊断肿瘤标志物细针穿刺活检

Estimation of Chloride Diffusivity in Hydrated Tricalcium Silicate Using a Hydration-Diffusion Integrated Method

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 49-64页

作者： WANG xin SHEN Dejian TAO Sijie liu Ruixin WU Shengxing College of Civil and Transportation Engineering Hohai UniversityNanjing 210098China

This study aims to develop a chloride diffusion simulation method that considers the hydration microstructure and pore solution properties during the hydration of tricalcium silicate(C3S).The method combines the hydration simulation,thermodynamic calculation,and finite element analysis to examine the effects of pore solution,including effect of electrochemical potential,effect of chemical activity,and effect of mechanical interactions between ions,on the chloride effective diffusion coefficient of hydrated C3S *** results indicate that the effect of electrochemical potential on chloride diffusion becomes stronger with increasing hydration age due to the increase in the content of hydrated calcium silicate;as the hydration age increases,the effect of chemical activity on chloride diffusion weakens when the number of diffusible elements decreases;the effect of mechanical interactions between ions on chloride diffusion decreases with the increase of hydration age.

关键词： tricalcium silicate simulation method chloride diffusion coefficient pore solution

syntheses, structures and magnetic behaviours of two mixed-metal-center inorganic-organic hybrid framworks with N-(Phosphonosmethyl)iminodiacetate

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syntheses, structures and magnetic behaviours of two mixed-m...