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Enhanced carbon capture with motif-rich amino acid loaded defective robust metal-organic frameworks

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Nano Research 2024年第3期17卷 2004-2010页

作者： Qi-Ye Ju Jia-Jia Zheng Li Xu hai-yan jiang Zi-Qian Xue Lu Bai yang-yang Guo Ming-Shui Yao Ting-Yu Zhu State Key Laboratory of Multi-phase Complex Systems CAS Key Laboratory of Green Process and EngineeringBeijing Key Laboratory of Ionic Liquids Clean ProcessInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China Laboratory of Theoretical and Computational Nanoscience National Center for Nanoscience and TechnologyChinese Academy of SciencesBeijing 100190China School of Rare Earths University of Science and Technology of ChinaHefei 230026China Ganjiang Innovation Academy Chinese Academy of SciencesGanzhou 341000China University of Chinese Academy of Sciences Chinese Academy of SciencesBeijing 100049China Institute for Integrated Cell-Material Sciences Kyoto UniversityInstitute for Advanced StudyKyoto UniversityYoshidaUshinomiya-choSakyokuKyoto 606-8501Japan

The use of metal-organic frameworks(MOFs)as solid adsorption materials for carbon capture is promising,but achieving efficient and reversible adsorption with a balance of capacity and selectivity for carbon dioxide(CO_(2))over N_(2) remains a *** take full advantage of the strong channel traffic and robustness of MOFs with relatively small pores,it is highly necessary to employ a defect-engineering strategy to construct a broader channel structure that can facilitate the loading of functional motif-rich amino acids(AAs).This strategy can greatly enhance the CO_(2) adsorption performance of *** this study,motif-rich amino acids are loaded into the defective and robust porous frameworks via combined defect-engineering and post-synthetic *** defective Zr/Hf-MOF-808s modified with AAs,especially for the 18 mol%4-nitroisophthalic acid,generated defective products allowing for the loading of L-serine(L-Ser).This modification resulted in a significant improvement in both the adsorption capacity(248%improvement at 298 K,100 kPa)and the selectivity of CO_(2)/N_(2) using the ideal adsorbed solution theory(IAST),with the selectivity increasing to 120.55 and 38.27 at 15 and 100 kPa,respectively,while maintaining good cycling *** functional theory(DFT)simulation,CO_(2) temperature-programmed desorption(CO_(2)-TPD),and in situ Fourier transform infrared spectroscopy(FTIR)were further employed to have a better understanding of the enhanced CO_(2) adsorption ***,unlike the AAs loaded pristine MOF-808s that showed the best CO_(2) adsorption capacity with the loading of short and small glycine(Gly),the broadened channel size in our work enables the loading of functional motif-rich L-serine,which brings more active binding sites,improving CO_(2) adsorption.

关键词： carbon capture and storage metal-organic framework(MOF) amino acids(AAs) defect-engineering motif-rich

MODEL ANALYSIS AND PARAMETER EXTRACTION FOR MOS CAPACITOR INCLUDING QUANTUM MECHANICAL EFFECTS

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Journal of Computational Mathematics 2006年第3期24卷 401-411页

作者： hai-yan jiang Ping-wen Zhang LMAM CCSE and School of Mathematical Sciences.Peking University Beijing 100871 China

The high frequency CV curves of MOS capacitor have been studied. It is shown that semiclassical model is a good approximation to quantum model and approaches to classical model when the oxide layer is thick. This conclusion provides us an efficient （semiclassical） model including quantum mechanical effects to do parameter extraction for ultrathin oxide device. Here the effective extracting strategy is designed and numerical experiments demonstrate the validity of the strategy.

关键词： Poisson Equation SchrSdinger Equation MOS Capacitor Quantum Effect,Sensitivity Parameter Extraction.

Effect of Cooling Rate on Microstructure and Mechanical Properties of Sand-Casted ***-0.6Mn-0.25Ce Alloy

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Acta Metallurgica Sinica(English Letters) 2019年第12期32卷 1549-1564页

作者： Hua-Ping Tang Qu-Dong Wang Chuan Lei Kui Wang Bing Ye hai-yan jiang Wen-jiang Ding National Engineering Research Center of Light Alloy Net Forming Shanghai Jiao Tong UniversityShanghai 200240China State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong UniversityShanghai 200240China

This study examines the relationship among cooling rate,microstructure and mechanical properties of a sand-casted Al-5.0 Mg-0.6 Mn-0.25 Ce(wt%)alloy subjected to T4 heat treatment(430℃×12 h+natural aging for 5 days),and the tested alloys with wall thickness varying from 5 to 50 mm were *** results show that as the cooling rate increases from0.22 to 7.65 K/s,the average secondary dendritic arm spacing(SDAS,λ2)decreases from 94.8 to 27.3μ*** relation between SDAS and cooling rate can be expressed by an equation:λ2=53.0 ***,an increase in cooling rate was shown not only to reduce the amount of the secondary phases,but also to promote the transition from Al10 Mn2 Ce toα-Al24(Mn,Fe)6Si2 *** tests show that as the cooling rate increases from 0.22 to 7.65 K/s,the ultimate tensile strength(UTS)increases from 146.3 to 241.0 MPa and the elongation(EL)increases sharply from 4.4 to 12.2%for the ascast *** of UTS and EL with SDAS were determined,and both the UTS and EL increase linearly with(1/λ2)0.5and that these changes can be explained by strengthening *** eutectic Al3Mg2 phases were dissolved during T4 treatment,which in turn further improve the YS,UTS and ***,the increment percent of YS,UTS and EL is affected by the cooling rate.

关键词： Al-Mg-Mn cast alloys Cooling rate Microstructure Al10Mn2Ce Mechanical properties

Effects of Solution Treatment on the Microstructure,Tensile Properties,and Impact Toughness of an Al–5.0Mg–3.0Zn–1.0Cu Cast Alloy

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Acta Metallurgica Sinica(English Letters) 2021年第1期34卷 98-110页

作者： Hua-Ping Tang Qu-Dong Wang Colin Luo Chuan Lei Tian-Wen Liu Zhong-yang Li Kui Wang hai-yan jiang Wen-jiang Ding National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong UniversityShanghai 200240China Schulich School of Engineering University of CalgaryCalgaryABCanada

This study investigates the eff ect of solution treatment(at 470°C for 0–48 h)on the microstructural evolution,tensile properties,and impact properties of an Al–5.0Mg–3.0Zn–1.0Cu(wt%)alloy prepared by permanent gravity *** results show that the as-cast microstructure consists ofα-Al dendrites and a network-like pattern of T-Mg32(AlZnCu)49 *** of the T-phases were dissolved within 24 h at 470℃;and a further prolonging of solution time resulted in a rapid growth ofα-Al *** transformation from the T-phase to the S-Al2CuMg phase was discovered in this *** the tensile properties and impact toughness increased quickly,reached a maximum peak value,and decreased gradually as the solution treatment *** impact toughness is more closely related to the elongation,and the relationship between impact toughness and elongation appears to obey an equation:IT=8.43 *** optimal solution treatment at 470℃for 24 h,this alloy exhibits excellent mechanical properties with the ultimate tensile strength,yield strength,elongation and impact toughness being 431.6 MPa,270.1 MPa,19.4%and 154.7 kJ/m^(2),which are comparable to that of a wrought Al–6.0 Mg–0.7 Mn alloy(5E06,a 5 xxx aluminum alloy).Due to its excellent comprehensive combination of mechanical properties,this cast alloy has high potential for use in components which require medium strength,high ductility and high toughness.

关键词： Al–Mg–Zn–Cu cast alloys T-Mg32(AlZn)49 phase S-Al2CuMg phase Impact toughness Mechanical properties

A silicon-graphene-silicon transistor with an improved current gain

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Journal of Materials Science & Technology 2022年第9期104卷 127-130页

作者： Chi Liu Xu-Qi yang Wei Ma Xin-Zhe Wang hai-yan jiang Wen-Cai Ren Dong-Ming Sun Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of Sciences72 Wenhua RoadShenyang 110016China School of Material Science and Engineering University of Science and Technology of China72 Wenhua RoadShenyang 110016China

In history,semiconductor-metal-semiconductor transistor(SMST)was proposed for frequency ***,a general fabrication method is still missing due to the unsolved technological problem of deposition of a general crystalline semiconductor on metal,and a thinner metal base is also difficult to be fabricated with high ***,due to the atomic thickness of graphene,the concept of semiconductor-graphene-semiconductor transistor(SGST)has emerged which leads to the renaissance of SMST,however the experimental study is in its *** this letter,SMST and SGST are fabricated using Si membrane *** is found the common base current gain can be improved from about 0.5%in a Si-Au-Si transistor to about 1%in a Si-Gr-Ge one,and to above 10%in a Si-Gr-Si one,which is attributed to both the ultra-thin thickness and the quantum capacitance effect of graphene.

关键词： Semiconductor metal semiconductor transistor Graphene base transistor Graphene base heterojunction transistor

Ototoxic destruction by co-administration of kanamycin and ethacrynic acid in rats

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2011年第10期12卷 853-861页

作者： Hong LIU Da-lian D1NG hai-yan jiang Xue-wen WU Richard SALVI Hong SUN Center for Hearing and Deafness University at Buffalo State University of New York New York 14214 USA Department of Otolaryngology the Third Xiangya Hospital of Central South University Changsha 410013 China Department of Otolaryngology Xiangya Hospital of Central South University Changsha 410008 China

It is well known that ethacrynic acid (EA) can potentiate the ototoxicity of aminoglycoside antibiotics (AmAn) such as kanamycin (KM),if they were applied at the same ***,to create the model of EA-KMinduced cochlear lesion in rats,adult rats received a single injection of EA (75 mg/kg,intravenous injection),or followed immediately by KM (500 mg/kg,intramuscular injection).The hearing function was assessed by auditory brainstem response (ABR) measurement in response to click and/or tone bursts at 4,8,12,16,20,24,and 32 *** static microcirculation status in the stria vascularis after a single EA injection was evaluated with eosin *** pathological changes in cochlear and vestibular hair cells were also quantified after co-administration of EA and *** a single EA injection,blood flow in vessels supplying the stria vascularis rapidly ***,the blood supply to the cochlear lateral wall partially recovered 5 h after EA *** changes in ABR were basically parallel to the microcirculation changes in stria vascularis after single EA ***,disposable co-administration of EA and KM resulted in a permanent hearing loss and severe damage to the cochlear hair cells,but spared the vestibular hair *** the cochlear lateral wall is the important part of the blood-cochlea barrier,EA-induced anoxic damage to the epithelium of stria vascularis may enhance the entry of KM to the ***,experimental animal model of selective cochlear damage with normal vestibular systems can be reliably created through co-administration of EA and KM.

关键词： Ototoxicity Ethacrynic acid Kanamycin Rat Blood-cochlea barrier

Effect of Al content on modification behavior of non-metallic inclusions in high-strength steel treated with rare earth

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Journal of Iron and Steel Research International 2024年第8期31卷 1886-1899页

作者： Zhan-peng Tie Xue-yuan jiang hai-yan Tang ·Gen Li Yu-hang Wang Jia-quan Zhang School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing 100083China Continuous Casting Business Section CISDI Engineering Co.Ltd.Chongqing 401122China Special Steel Institute Central Iron and Steel Research Institute Co.Ltd.Beijing 100081China

The influence of Al content(0.0053,0.0171,and 0.0578 wt.%)on the modification behavior of non-metallic inclusions in 20CrMoVTiB steel treated with rare earth elements was studied through high-temperature experiments and thermodynamic *** results showed that the modification products varied with the Al content in steel under 0.01 wt.%of Ce *** formation sequence of typical rare earth inclusions in steel with the increase in Al content was Ce_(2)O_(3)→CeAlO_(3)→CeAl_(11)O_(18),and the final stable products were highly Al content *** the Al content was 0.0053 wt.%,the stable phase in steel was Ce2O3;while the[Al]reached 0.0171 wt.%,the stable phase became CeA1O_(3).As the A1 content reached 0.0578 wt.%,CeAl_(11)O_(18) became the stable *** a result,increasing the Al content could inhibit the precipitation of Ce_(2)O_(3) inclusions in steel while promote the formation of CeAIO3 and CeAl_(11)O_(18) *** addition,both Ca treatment and Ce treatment could effectively refine the size of inclusions in steel by changing their ***,the feeding amount of Ca wire into molten steel should be appropriately reduced under the condition of adding Ce simultaneously,which is expected to be beneficial for an improved Ce treatment effect.

关键词： Rare earth Al content Steel Inclusion Thermodynamics Ca treatment

Clinical manifestations and spermatogenesis outcomes in Chinese patients with congenital hypogonadotropic hypogonadism caused by inherited or de novo FGFR1 mutations

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Asian Journal of Andrology 2024年第4期26卷 426-432页

作者： Yu-Fan yang hai-Lu Ma Xi Wang Min Nie jiang-Feng Mao Xue-yan Wu Department of Endocrinology Peking Union Medical College HospitalChinese Academy of Medical SciencesPeking Union Medical CollegeBeijing 100730China.

Fibroblast growth factor receptor 1(FGFR1)mutations are associated with congenital hypogonadotropic hypogonadism(CHH)through inheritance or spontaneous *** detected FGFR1 mutations in a Chinese cohort of 210 CHH patients at Peking Union Medical College Hospital(Beijing,China)using next-generation and Sanger *** assessed missense variant pathogenicity using six bioinformatics tools and compared clinical features and treatment outcomes between inherited and de novo mutation *** 19 patients with FGFR1 mutations,three were recurrent,and 16 were novel *** of the novel mutations were likely pathogenic according to the American College of Medical Genetics and Genomics(ACMG)guidelines,with the prevalent P366L *** majority of FGFR1 mutations was inherited(57.9%),with frameshift mutations exclusive to the de novo mutation *** inherited mutation group had a lower incidence of cryptorchidism,short stature,and skeletal *** the inherited mutation group,luteinizing hormone(LH)levels were 0.5 IU l−1,follicle-stimulating hormone(FSH)levels were 1.0 IU l−1,and testosterone levels were 1.3 nmol l−*** contrast,the de novo group had LH levels of 0.2 IU l−1,FSH levels of 0.5 IU l−1,and testosterone levels of 0.9 nmol l−1,indicating milder hypothalamus–pituitary–gonadal axis(HPGA)functional deficiency in the inherited *** inherited mutation group showed a tendency toward higher spermatogenesis *** conclusion,this study underscores the predominance of inherited FGFR1 mutations and their association with milder HPGA dysfunction compared to de novo mutations,contributing to our understanding of the genetic and clinical aspects of FGFR1 mutations.

关键词： congenital hypogonadotropic hypogonadism de novo FGFR1 inherited

Advances in the Application of Molecular Diagnostic Techniques to Brucellosis

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Biomedical and Environmental Sciences 2024年第7期37卷 790-794页

作者： haiwen Liu hai jiang School of Public Health Baotou Medical CollegeBaotou 014040Inner Mongolia AutonomousChina National Key Laboratory of Intelligent Tracing and Forecasting for Infectious Diseases National Institute for Communicable Disease Control and PreventionChinese Center for Disease Control and PreventionBeijing 102206China

Brucellosis is a zoonotic infectious and allergic disease caused by Brucella *** occurs worldwide and has had a huge economic impact on the livestock industry in many countries and *** has become a major public health *** is an endoparasitic,non-motile Gram-negative bacterium capable of surviving within a diverse range of domestic animal hosts.

关键词： problem diverse capable