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Self-template-oriented synthesis of lead-free perovskite Cs_(3)Bi_(2)I_(9) nanosheets for boosting photocatalysis of CO_(2) reduction over Z-scheme heterojunction Cs_(3)Bi_(2)I_(9)/CeO_(2)

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Journal of Energy Chemistry 2022年第6期31卷 348-355,I0010页

作者： you-Xiang Feng Guang-xing Dong Ke Su Zhao-Lei liu Wen Zhang Min Zhang Tong-Bu Lu MOE International Joint Laboratory of Materials Microstructure Institute for New Energy Materials and Low Carbon TechnologiesSchool of Materials Science and EngineeringTianjin University of TechnologyTianjin 300384China Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion School of Chemistry and Chemical EngineeringTianjin University of TechnologyTianjin 300384China

Lead halide perovskite (LHP) nanocrystals have been intensely studied as photocatalysts for artificial photosynthesis in recent ***,the toxicity of lead in LHP seriously limits their potential for widespread ***,we first present the synthesis of 2D lead-free halide perovskite (Cs_(3)Bi_(2)I_(9)) nanosheets with self-template-oriented method,in which BiOI/Bi_(2)O_(2) nanosheets were used as the template and Bi ion source *** facile electrostatic self-assembly strategy,a Z-scheme heterojunction composed of Cs_(3)Bi_(2)I_(9)nanosheets and CeO_(2) nanosheets (Cs_(3)Bi_(2)I_(9)/CeO_(2)-3:1) was constructed as photocatalyst for the photo-reduction of CO_(2) coupled with the oxidation of H_(2)*** to the matching energy levels and the close interfacial contact between Cs_(3)Bi_(2)I_(9)and CeO_(2) nanosheets,the separation efficiency of the photogenerated carriers in Cs_(3)Bi_(2)I_(9)/CeO_(2)-3:1 composite was significantly ***,the environment-friendly halide perovskite heterojunction Cs_(3)Bi_(2)I_(9)/CeO_(2)-3:1presents impressive photocatalytic activity for the reduction of CO_(2)to CH_(4)and CO with an electron consumption yield of 877.04μmol g^(-1),which is over 7 and 15 times higher than those of pristine Cs_(3)Bi_(2)I_(9)and CeO_(2)nanosheets,exceeding the yield of other reported bismuth-based perovskite for photocatalytic CO_(2)reduction.

关键词： Lead-free perovskite Z-scheme heterojunction Cs_(3)Bi_(2)I_(9)nanosheets Photocatalytic CO_(2)reduction H_(2)O oxidation

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Research progress of nanoparticles reinforced composite filler metal

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钢铁研究学报（英文版） 2024年第10期31卷 2365-2377页

作者： Shi-yan Xie Ya-qiong Ge Ming-zhu you Guan-xing Zhang Yan-hong Guo Er-qiang liu College of Materials Science and Engineering Taiyuan University of Science and TechnologyTaiyuan 030024ShanxiChina State Key Laboratory of Advanced Brazing Filler Metals&Technology Zhengzhou Research Institute of Mechanical Engineering Co.Ltd.Zhengzhou 450001HenanChina College of Applied Science Taiyuan University of Science and TechnologyTaiyuan 030024ShanxiChina

Composite filler metal refers to the traditional filler metal by adding a certain proportion of various forms of superalloy,carbon fiber and ceramic particles as reinforcement *** to the addition of the reinforcement phase,the filler metal can have a suitable thermal expansion coefficient,which can effectively reduce the residual stress at the brazing joint caused by the different thermal expansion coefficients of the base metal and improve the comprehensive performance of the brazing *** recent years,with the progress of science and technology,the research on nanomaterials has been deepening,and nanomaterials are widely used in the modification of composite filler metals because of their special surface effect,small size effect,quantum size effect and macroscopic quantum tunneling *** modification performance of different composite solders by nanoparticles in recent years is reviewed,the advantages and disadvantages of nano-reinforced composite solders are analyzed,and the future research direction of composite solders is prospected.

关键词： Metal nanoparticle Metal oxide nanoparticle Carbon-based nanomaterial Brazing Composite filler metal

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Cathepsin B protease is required for metamorphism in silkworm, Bombyx moil

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Insect Science 2008年第3期15卷 201-208页

作者： Gen-Hong Wang Chun liu Qing-you Xia xing-Fu Zha Jie Chen Liang Jiang Key Sericultural Laboratory of the Agricultural Ministry College of Biotechnology Southwest University Chongqing China

Cathepsin B belongs to lysosomal cysteine protease of the papain family. Temporal and spatial expression analysis of cathepsin B of Bombyx mori （BmCtB） was carried out based on Expression Sequence Tags （ESTs） data, oligonucleotide microarray, reverse transcription polymerase chain reaction （RT-PCR） and quantitative real-time PCR. Expression of BmCtB was observed in all of the tissues and stages. Among the 10 tested tissues, the fat body and posterior silk gland are the two most enriched tissues with BmCtB. During Bombyx development, there was an expression fastigium of BmCtB during metamorphosis. RNA interference was used to suppress the expression of cathepsin B during metamorphosis. Significant developmental defective phenotypes were obtained in the RNAi treated group. The dramatically reduced expression of BmCtB was con^rmed by Northern blot and quantitative real-time PCR. These evidences strongly suggest cathepsin B proteinase was predominantly involved in the metabolism process of fat body and the posterior silk gland and was critical for metamorphism and development of silkworm, Bombyx mori.

关键词： cathepsin B RNA interference quantitative real-time PCR Bombyx mori

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TRANSPORTATION CHARACTERISTIC OF BED LOAD FOR NON-UNIFORM SEDIMENT WITH EQUIVALENT GRAIN

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Journal of Hydrodynamics 2002年第3期14卷 117-121页

作者： He, Wen-She Cao, Shu-you Fang, Duo liu, xing-Nian Yang, Ju-Rui Hydraulics Lab. of High Speed Flows Sichuan Univ. Chengdu 610065 China

The incipient velocity of sediment is one of the most important basic theoretical problems of hydraulic engineering. The initial motion of sediment is a random process. Based on the combination methods of classical mechanics with statistics theory the formula to calculate the incipient motion of sediment was established. According to the standard of incipient motion, motion status, relative degree of expose for sediment and equivalent grain were defined. The coefficient in the formula included the flow fluctuation and relative degree of exposition. The value of the coefficient was calculated by using some parameters value. The results show that the value of dimensionless shear stress coefficient is not a constant, but locating in a range from 0.022 to 0.063 for weak and middle motion status, and varying with the relative degree of sediment expose. The value of dimensionless Shields numbers that put forward in the text can explain the reason that why the coefficients in difference formulas have wide scatter. The theoretical formula has been verified with amount of data collected from both natural rivers and flumes. The results can reflect the motion characteristic of the sediment.

关键词： Grain size and shape Mechanics Sediments Shear stress Statistics Transport properties

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Follicular dendritic cell sarcoma detected in hepatogastric ligament:A case report and review of the literature

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World Journal of Clinical Cases 2019年第1期7卷 116-121页

作者： Wen-Xin Yan you-Xi Yu Ping Zhang xing-Kai liu Yan Li Department of Hepatobiliary and Pancreatic Surgery the First Hospital of Jilin University Department of Surgery School of Medicine University of Louisville

The most common organ where follicular dendritic cell sarcoma(FDCS) occurs is in cervical lymph nodes, while few cases are found in extranodal organs such as liver, spleen, and soft tissue. This is a case report that FDCS occurs in the hepatogastric ligament. To our knowledge, there is no such case that has been reported previously. A 47-year-old male patient was found to have an intraabdominal mass during an annual physical examination. Computed tomography showed a 4.2 cm × 4.1 cm mass located at the lesser curvature of the stomach, above the pancreas. During operation, a tumor mass was found in the hepatogastric ligament and a radical resection was performed. The tumor was diagnosed as FDCS by pathology and immunohistochemical testing. The patient had a favorable recovery, and no obvious abnormality was found 3 months postoperation.

关键词： Follicular dendritic cell sarcoma Hepatogastric ligament Pathology Immunohistochemistry Computed tomography Case report

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Broadband asymmetric transmission for linearly and circularly polarization based on sand-clock structured metamaterial

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Chinese Physics B 2021年第1期30卷 229-233页

作者： Tao Fu xing-xing liu Guo-Hua Wen Tang-you Sun Gong-Li Xiao Hai-Ou Li Guangxi Key Laboratory of Precision Navigation Technology and Application Guilin University of Electronic Technology(GUET)Guilin 541004China Department of Mechanical and Biomedical Engineering City University of Hong Kong83 Tat Chee AveKowloonHong Kong SARChina

We proposed a sandwich structure to realize broadband asymmetric transmission(AT) for both linearly and circularly polarized waves in the near infrared spectral region. The structure composes of a silica substrate and two sand-clock-like gold layers on the opposite sides of the substrate. Due to the surface plasmons of gold, the structure shows that the AT parameters of linearly and circularly polarized waves can reach 0.436 and 0.403, respectively. Meanwhile, a broadband property is presented for the AT parameter is over 0.3 between 320 THz and 340 THz. The structure realizes a diode-like AT for linearly wave in forward and circularly wave in backward, respectively. The magnetic dipoles excited by current in the two gold layers contribute to the broadband AT. The current density in top and bottom metallic layers illustrates the mechanism of the polarization conversion for broadband AT in detail.

关键词： asymmetric transmission metasurface polarization conversion trerahertz broadband electromagnetic wave near-infrared

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猪A型流感病毒RT-PCR的建立及应用

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中国畜牧兽医 2011年第8期38卷 97-99页

作者：赵朴赵坤郑玉姝李任峰胡建和王三虎刘兴友贾贝贝河南科技学院动物科学学院河南新乡453003 动物疫病和残留物防控河南省高校工程技术研究中心河南新乡453003

根据GenBank上A型流感病毒M基因的保守序列,设计1对引物,建立了检测猪群中A型流感病毒的RT-PCR方法。试验结果表明,该RT-PCR方法敏感、特异,适于临床样品检测,为猪群中A型流感病毒的临床诊断和流行病学调查奠定了基础。

关键词：猪群 A型流感病毒 RT-PCR 临床诊断流行病学调查

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荧光定量PCR方法的原理及其在研究病毒在动物体内分布规律的应用

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中国畜牧兽医 2010年第4期37卷 63-65页

作者：高均伟郭延锋王三虎潘耀谦王丽荣朱国坡刘兴友河南科技学院动物科技学院新乡453003 动物疫病和残留物防控河南省高校工程技术研究中心新乡453003

研究病毒在动物体内的分布情况,主要是为了掌握病毒在动物体内的生长繁殖规律,找到病毒的靶细胞和靶器官,为进一步研究其致病机理和防制技术提供试验依据。荧光定量PCR法具有定量准确、特异性强、自动化程度高等特点,是研究病毒分布规... 详细信息

研究病毒在动物体内的分布情况,主要是为了掌握病毒在动物体内的生长繁殖规律,找到病毒的靶细胞和靶器官,为进一步研究其致病机理和防制技术提供试验依据。荧光定量PCR法具有定量准确、特异性强、自动化程度高等特点,是研究病毒分布规律的主要方法之一,作者综述了此方法的原理及应用。

关键词：荧光定量PCR 病毒分布规律原理应用

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一株猪圆环病毒2型的分离与分子鉴定

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河南农业科学 2011年第7期40卷 155-157页

作者：赵朴赵坤李任峰王三虎刘兴友陈金山赵恒章郑玉姝河南科技学院动物科学学院河南新乡453003 动物疫病和残留物防控河南省高校工程技术研究中心河南新乡453003

利用PCR技术初步检测疑似PCV2感染的猪肺脏和淋巴结中的病毒。将样品处理后接种于PK-15细胞。从感染PK-15细胞PCR扩增PCV2基因片段,克隆入pMD18-T载体,并进行序列测定和比较。序列分析结果表明,分离病毒的PCR产物与国内多株PCV2核酸同... 详细信息

利用PCR技术初步检测疑似PCV2感染的猪肺脏和淋巴结中的病毒。将样品处理后接种于PK-15细胞。从感染PK-15细胞PCR扩增PCV2基因片段,克隆入pMD18-T载体,并进行序列测定和比较。序列分析结果表明,分离病毒的PCR产物与国内多株PCV2核酸同源性大于98%,说明所分离的病毒为PCV2。

关键词：猪圆环病毒2型 PCR分离鉴定

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脑炎原虫病兔免疫器官的病理形态学观察

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动物医学进展 2012年第3期33卷 58-62页

作者：潘耀谦刘兴友赵振升陈金山银梅唐海蓉朱广蕊夏银可河南科技学院动物科学学院河南新乡453003 动物疫病和残留物防控河南省高校工程技术研究中心河南新乡453003 河南科技大学动物科技学院河南洛阳453007

研究脑炎原虫病兔外周免疫器官的形态学变化,采集20只病兔和12只对照兔的淋巴结、脾脏和圆小囊,通过临床检查,病理剖检,病理切片的HE染色、吉姆萨染色和免疫组织化学染色进行了比较观察。结果表明病兔淋巴结内的淋巴小结数量增多,生发... 详细信息

研究脑炎原虫病兔外周免疫器官的形态学变化,采集20只病兔和12只对照兔的淋巴结、脾脏和圆小囊,通过临床检查,病理剖检,病理切片的HE染色、吉姆萨染色和免疫组织化学染色进行了比较观察。结果表明病兔淋巴结内的淋巴小结数量增多,生发中心明显,髓索增粗,副皮质区增宽。脾脏的脾小结增多,变大,具有明显的生发中心,边缘区明显增宽,动脉周围淋巴鞘明显变大,聚集大量淋巴细胞。圆小囊的淋巴小结增大,数量增多,生发中心明显,淋巴小结周围弥散大量淋巴细胞。通过α-ANAE和sABC染色,在淋巴结、脾脏和圆小囊中均可检出大量T细胞、巨噬细胞和IgG阳性细胞。据此认为患脑炎原虫病时,病兔的体液免疫和细胞免疫均增强,但以细胞免疫反应更强。

关键词：兔脑炎原虫免疫器官细胞免疫体液免疫

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