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| 1 | Gene mutations and clinical phenotypes in Chinese children with Blau syndrome显示文摘The mutations of CARD15 gene and clinical features of Chinese patients with Blau syndrome were analyzed. We identified10 missense mutations, out of which five were new: R334 L, E383 D, R471 C, C495 R and D512 F. The rest of them, R334 W,R334Q, G481 D, M513 T and R587 C, have been reported previously. Among all the mutations, R334 W, R334 Q and C495 R had the highest frequency. Blau syndrome was found at early age after birth. It began with lepidic rash and symmetric polyarthritis and was phenotypically characterized by typical rash, arthritis, iridocyclitis and arteritis. Cardiac involvement was also found in Blau syndrome. In addition to nerve deafness, renal involvement, osteochondroma and central nervous system involvement were also found in our patients. Therefore, Chinese children with Blau syndrome have unique gene mutations and complicated clinical phenotypes. Pathologic examination and CARD15 mutation testing should be considered for diagnosis as early as possible for suspected patients. | Caifeng Li Junmei Zhang Shipeng Li Tongxin Han Weiying Kuang Yifang Zhou Jianghong Deng Xiaohua Tan | 2017 | Science China(Life Sciences)2017，60，7： | 13 |
| 2 | Quasi-solid-state nanocrystalline TiO2 solar cells using gel network polymer electrolytes based on polysiloxanes显示文摘A quasi-solid-state dye-sensitized nanocrystal-line porous TiO2 film solar cell was fabricated using a novel gel network polymer electrolyte based on polysiloxanes with both polyethylene oxide internal plasticized side chains and quaternary ammonium groups. The cell exhibited better photoelectrical conversion performance under 60 mW/cm2 irradiation. The short photocurrent (Isc) of 5.0 mA/cm2 and open voltage (Voc) of 0.68 V were achieved, and the energy conversion efficiency (h ) and fill factor (ff) were 3.4% and 0.60, respectively. | LI Weiying, KANG Junjie, LI Xueping, FANG Shibi, LIN Yuan, WANG Guiqiang & XIAO Xurui Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China | 2003 | Chinese Science Bulletin2003，48，7： | 11 |
| 3 | Gene mutations and clinical phenotypes in 15 Chinese children with cryopyrin-associated periodic syndrome(CAPS)显示文摘The aim of our study is to explore the features of clinical manifestations and genetic mutations in Chinese CAPS patients. Fifteen confirmed patients with CAPS were enrolled. The onset time ranges from 2 days after birth to 6 years and 1 month. Recurrent urticaria rash(93.3%) with fever(100%) were two dominant characteristics of these patients that were presented as either acute or chronic process. Systemic involvements were found in all patients except for one with only rash and fever. The top three symptoms were fever(100%), rash(93.3%) and myalgia(76%). Other clinical manifestations include arthritis(11 cases), lung involvement(seven cases), optical dysfunction(seven cases), nerve deafness(six cases), nervous system involvement(five cases), hepatomegaly, splenomegaly and lymphadenectasis(five cases). Also, four patients had heart involvement and one patient suffered kidney involvement. The laboratory inflammation index such as leukocyte counts, platelet counts, erythrocyte sedimentation rate(ESR), C-reactive protein(CRP), serum amyloid A(SAA) and fibrinogen(FIB) increased significantly at initial stage, but decreased after therapy. As for gene mutation detection, Twelve out of 15 patients were confirmed with mutation in NLRP3, including 11 mutant site: c1789 A>G, c.1703 T>A, c.913 G>A, c.1710 G>C, c.1057 G >T, c.2335 C>T, c.932 T>C,c.296 G>C, c.663 C>T, t.1702 T>A, 299 G>A. Mutation sites c.1703 T>A, c.2335 C>T, c.296 G>C, c.663 C>T, and 299 G>A were newly identified. The association between gene mutation and clinical manifestation shows that D305 N was highly associated with severe organs involvements, and therefore, the time of therapy and regimen were critical for the prognosis of disease. As the largest cohort study of Chinese CAPS patients, we confirmed that all patients presented typical clinical manifestations, identified five new mutation sites on NLRP3 and analyzed the correlation between the genotypes and phenotypes. We also raise concerns for one case with serious conditions that only had two nonsense mutations(c.663 C>T and t.1702 T>A) detected. | Caifeng Li Xiaohua Tan Junmei Zhang Shipeng Li Wenxiu Mo Tongxin Han Weiying Kuang Yifang Zhou Jianghong Deng | 2017 | Science China(Life Sciences)2017，60，12： | 9 |
| 4 | Fluorescence regional integration and differential fluorescence spectroscopy for analysis of structural characteristics and proton binding properties of fulvic acid sub-fractions显示文摘Structural characteristics and proton binding properties of sub-fractions(FA3–FA13) of fulvic acid(FA), eluted stepwise by pyrophosphate buffer were examined by use of fluorescence titration combined with fluorescence regional integration(FRI) and differential fluorescence spectroscopy(DFS). Humic-like(H-L) and fulvic-like(F-L) materials, which accounted for more than 80% of fluorescence response, were dominant in five sub-fractions of FA. Based on FRI analysis, except the response of F-L materials in FA9 and FA13, maximum changes in percent fluorescence response were less than 10% as pH was increased from 2.5 to 11.5.Contents of carboxylic and phenolic groups were compared for fluorescence peaks of FA sub-fractions based on pH-dependent fluorescence derived from DFS. Static quenching was the dominant mechanism for binding of protons by FA sub-fractions. Dissociation constants(p Ka) were calculated by use of results of DFS and the modified Stern-Volmer relationship. The p Kaof H-L, F-L, tryptophan-like and tyrosine-like materials of FA subfractions exhibited ranges of 3.17–4.06, 3.12–3.97, 4.14–4.45 and 4.25–4.76, respectively, for acidic pHs. At basic pHs, values of p Ka for corresponding materials were in ranges of 9.71–10.24, 9.62–10.99, 9.67–10.31 and 9.33–10.28, respectively. At acidic pH, protein-like(P-L)materials had greater affinities for protons than did either H-L or F-L materials. The dicarboxylic and phenolic groups were likely predominant sites of protonation for both H-L and F-L materials at both acidic and basic pHs. Amino acid groups were significant factors during proton binding to protein-like materials of FA sub-fractions at basic pH. | Fanhao Song Fengchang Wu Weiying Feng Zhi Tang John P.Giesy Fei Guo Di Shi Xiaofei Liu Ning Qin Baoshan Xing Yingchen Bai | 2018 | Journal of Environmental Sciences2018，30，12： | 9 |
| 5 | Inconsistent seasonal variation of antibiotics between surface water and groundwater in the Jianghan Plain:Risks and linkage to land uses显示文摘Antibiotics are widely used in humans and animals,but their transformation from surface water to groundwater and the impact of land uses on them remain unclear.In this study,14 antibioticswere systematically surveyed in a complex agricultural area in Central China.Results indicated that the selected antibiotic concentrations in surface waters were higher in winter(average:32.7 ng/L)than in summer(average:17.9 ng/L),while the seasonal variation in groundwaters showed an opposite trend(2.2 ng/L in dry winter vs.8.0 ng/L in summer).Macrolides were the predominant antibiotics in this area,with a detected frequency of over 90%.A significant correlation between surface water and groundwater antibiotics was only observed in winter(R^(2)=0.58).This study further confirmed the impact of land uses on these contaminants,with optimal buffer radii of 2500 m in winter and 500 m in summer.Risk assessment indicated that clarithromycin posed high risks in this area.Overall,this study identified the spatiotemporal variability of antibiotics in a typical agricultural area in Central China and revealed the impact of land uses on antibiotic pollution in aquatic environments. | Xi Liu Zhi Wang Lu Zhang Weiying Fan Chao Yang Enhua Li Yun Du Xuelei Wang | 2021 | Journal of Environmental Sciences2021，33，11： | 9 |
| 6 | USING LEARNING STRATEGIES TO DEVELOP LISTENING COMPREHENSION—A CASE STUDY显示文摘By adopting the research method of case study, this article studies the learning strategies of an adult learner of English in listening comprehension. It is found that the learner can use some learning strategies but only at very elementary level. After an eight-week training course in learning strategies, the learner made noticeable progress in listening, which proves that learning strategies can be trained and contribute positively to language proficiency. | Wu Weiying Zhongshan University | 2000 | Chinese Journal of Applied Linguistics2000，23，1： | 8 |
| 7 | Presence, dissemination and removal of antibiotic resistant bacteria and antibiotic resistance genes in urban drinking water system: A review显示文摘Antibiotic resistance in aquatic environment has become an important pollution problem worldwide. In recent years, much attention was paid to antibiotic resistance in urban drinking water systems due to its close relationship with the biosafety of drinking water. This review was focused on the mechanisms of antibiotic resistance, as well as the presence, dissemination and removal of antibiotic resistant bacteria (ARB) and antibiotic resistance genes (ARGs) in the urban drinking water system. First, the presence of ARB and ARGs in the drinking water source was discussed. The variation of concentration of ARGs and ARB during coagulation, sedimentation and filtration process were provided subsequently, in which filtration was proved to be a promising technology to remove ARGs. However, biological activated carbon (BAC) process and drinking water distribution systems (DWDSs) could be incubators which promote the antibiotic resistance, due to the enrichment of ARGs and ARB in the biofilms attached to the active carbon and pipe wall. Besides, as for disinfection process, mechanisms of the inactivation of ARB and the promotion of conjugative transfer of ARGs under chlorine, ozone and UV disinfection were described in detail. Here we provide some theoretical support for future researches which aim at antibiotic resistance controlling in drinking water. | Qiaowen Tan Weiying Li Junpeng Zhang Wei Zhou Jiping Chen Yue Li Jie Ma | 2019 | Frontiers of Environmental Science & Engineering2019，13，3： | 8 |
| 8 | High absorption large-mode area step-index fiber for tandem-pumped high-brightnes shigh-power lasers显示文摘A short absorption length ytterbium(Yb)-doped large-mode area(LMA)fiber is presented as a step forward to mitigate the stern problem of nonlinear scatterings in a tandem pumping scheme adopted for high-power fiber laser.The short absorption length was realized by incorporating high Yb concentration in the fiber core.Furthermore,by replacing the inherent silica cladding with a Ge-doped cladding,we were able to obtain low core numerical aperture(NA)and negate the detrimental effect of index-raising by high Yb concentrations.This overcomes the long-standing limitation in step-index Yb-doped fibers(YDFs)where high cladding absorption inevitably results in high NA,thus hampering single-mode operation.We report an LMA(~575μm^2)YDF with NA of 0.04 and absorption of 27 dB/m at 976 nm both traits promote power scaling of single-mode tandem pumped fiber lasers.To our knowledge,this is the highest cladding absorption attained in a low-NA step-index fiber to date.An all-fiber tandem-pumped amplifier was built using only^14 m of the YDF.The amplifier delivered a near-Gaussian beam(M^i.27)at 836 W output power(pump power limited)with a high slope efficiency of^83%.Thanks to the short length and the tandem pumping,no indication of limiting factors such as stimulated Raman scattering,photodarkening,and transverse mode instability was observed. | KANG-JIE LIM SAMUEL KA-WEN SEAH JOASH YONG'EN YE WENDY WEIYING LIM CHU-PERNG SEAH YUNN-BOON TAN SUTING TAN HUITING LIM RAGHURAMAN SIDHARTHAN ARUMUGAM RAJENDRA PRASADH CHEN-JIAN CHAN SEONGWOO YOO SONG-LIANG CHUA | 2020 | Photonics Research2020，8，10： | 5 |
| 9 | Imaging energetic electron spectrometer onboard a Chinese navigation satellite in the inclined GEO orbit显示文摘The energetic electron measurement is one of the most important issues to understand dynamics in space physics and the applications for space weather. In this study, the principle and functional components of the imaging energetic electron spectrometer(IES) onboard a Chinese navigation satellite in the inclined GEO orbit(IGSO) was introduced. The IES instrument is developed by the team in Peking University(BeiDa), thus it is named as BD-IES. Based on the pin-hole technique, the instrument can measure 50–600 keV electrons incident from 9 directions over a range of 180° in polar angle. With pulse height analysis(PHA), the spectrum can be determined for each direction. The energy and angular calibrations were performed, which show the good energy and angular characteristics of BD-IES. Monte Carlo simulations show that the anti-proton design of BDIES can effectively decrease the proton contamination on the electron measurements in the inclined GEO orbit. The primary results of BD-IES verify the successful design of this instrument. | ZOU Hong YE YuGuang ZONG QiuGang CHEN HongFei ZOU JiQing CHEN Jiang SHI WeiHong YU XiangQian ZHONG WeiYing WANG YongFu ZHOU XuZhi HAO YiXin CHEN XingRan JIA XiangHong XU Feng SHAO SiPei WANG Bo HAO XiaoYun ZHANG XiaoXin | 2018 | Science China(Technological Sciences)2018，61，12： | 5 |
| 10 | Differences in the gene expressive quantities of carbonic anhydrase and cysteine synthase in the weathering of potassium-bearing minerals by Aspergillus niger显示文摘We investigated the differences in the gene expression of carbonic anhydrase(CA)and cysteine synthase(CysM)between two weathering conditions,with either soluble potassium or insoluble potassium.We cultured a strain of A.niger by adopting a variant Czapek medium(using Na2HPO4as a substitute for K2HPO4)in two groups,Group A(containing silicate minerals bearing potassium but without KCl)and Group B(with KCl).We extracted the mRNAs of CA and CysM from these two groups and performed real-time quantitative polymerase chain reactions(RT-qPCR).We constructed relative standard curves by using glyceraldehyde-3-phosphate dehydrogenase(GAPDH)as the reference to confirm a consistent amplification efficiency of the target genes(CA and CysM)and the reference gene and quantified the gene expression of the targets in a relative manner.Our results showed that CA and CysM in Group A were upregulated for 1.7 times and 11.7 times,respectively,compared with those in Group B.Furthermore,we also analyzed some metabolic pathways and functions of the A.niger-induced weathering of potassium-bearing minerals,which involved the synthesizing of these two enzymes.Thus our work provides materials for further study of the roles of A.niger in the metabolic regulation during the weathering process of potassium-bearing minerals. | SUN LeiLei XIAO LeiLei XIAO Bo WANG WeiYing PAN Chen WANG ShiJie LIAN Bin | 2013 | Science China Earth Sciences2013，56，12： | 4 |
| 11 | Effects of Martian crustal magnetic field on its ionosphere显示文摘The effect of the Martian crustal magnetic field is one of the hot topics of the study of Martian ionosphere.The studies on this topic are summarized in this paper.Main data of the Martian ionosphere were resulted from radio occultation experiments.According to the observations,the electron density scale height and the peak electron density of the Martian ionosphere are influenced by its crustal magnetic field.The strong horizontal magnetic field prevents the vertical diffusion of the plasma and makes the electron density scale height in the topside ionosphere close to that in the photo equilibrium region.In the cusp-like regions with strong vertical magnetic field,the enhanced vertical diffusion leads to a larger electron density scale height in the diffusion equilibrium region.The observation of radio occultation experiment onboard Mars Global Surveyor (MGS) showed that the averaged peak electron density observed in the southern hemisphere with strong crustal magnetic field was slightly larger than that in the northern hemisphere with weak crustal magnetic field.The Mars advanced radar for subsurface and ionosphere sounding (MARSIS) onboard Mars Express (MEX) was the first topside sounder to be used to observe Martian ionosphere.The MARSIS results confirmed that the enhancement of the peak electron density occurred in cusp-like regions with open field lines,and the amount of the enhancement was much larger than that observed by the radio occultation experiment.There are two possible mechanisms for the peak electron density enhancement in the cusp-like crustal magnetic field regions:One is the precipitation of the energetic particles and the other is the heating by the waves excited by plasma instabilities.It's difficult to determine which one is the key mechanism for the peak electron density enhancement.Based on these studies,several interesting problems on the Martian ionosphere and plasma environment are presented. | ZOU Hong,CHEN HongFei,YU Ning,SHI WeiHong,YU XiangQian,ZOU JiQing & ZHONG WeiYing Institute of Space Physics and Applied Technology,Peking University,Beijing 100871,China | 2010 | Science China(Technological Sciences)2010，53，6： | 4 |
| 12 | Molecular analysis of bacterial community in the tap water with different water ages of a drinking water distribution system显示文摘在喝的水分发系统(DWDS ) 的细菌的社区被多重环境因素调整,许多哪个作为水年龄的功能变化了。在这研究,四水与不同的水年龄取样,包括完成的水( FW , 0 d )并且自来水( TW )[ TW1 ( 1 d ), TW2 ( 2 d )和 TW3 ( 3 d )],与实际 DWDS 的 mains 一起被收集,并且细菌的社区被高产量的定序的技术调查。结果显示剩余氯随水年龄的增加衰退了,由溶解有机物,全部的细菌计数和细菌的差异(香农) 的增加伴随了。为细菌的社区作文,尽管 Proteobacteria 门(84.12%-97.6%) 和 Alphaproteobacteria 班(67.42%-93.09%) 保留了,统治,一明显常规在目水平被观察。详细,,大多数另外的剩余订单从开始与不同的度增加了到 DWDS 的目的相对许多一向下,趋势特别地以 Rhizobiales 被观察,被推断氯抵抗并且对禁止有用的人,尖叫腐蚀。而且,一些 OTU 被发现与拥有致病力和氯抵抗的能力的种类密切相关,除氯以外的代理人的使用或能与氯协作地行动的代理人应该为喝水消毒被开发,这因此被推荐。这份报纸沿着 DWDS 的 mains 揭示了细菌的社区变化,结果对在 DWDS 理解细菌的生态学有用。 | Feng Wang Weiying Li Yue Li Junpeng Zhang Jiping Chen Wei Zhang Xuan Wu | 2018 | Frontiers of Environmental Science & Engineering2018，12，3： | 4 |
| 13 | Tumor cell membrane-camouflaged responsive nanoparticles enable MRI-guided immuno-chemodynamic therapy of orthotopic osteosarcoma显示文摘Osteosarcoma is a refractory bone disease in young people that needs the updating and development of effective treatment.Although nanotechnology is widely applied in cancer therapy,poor targeting and inadequate effi-ciency hinder its development.In this study,we prepared alendronate(ALD)/K7M2 cell membranes-coated hollow manganese dioxide(HMnO_(2))nanoparticles as a nanocarrier to load Ginsenoside Rh2(Rh2)for Mag-netic Resonance imaging(MRI)-guided immuno-chemodynamic combination osteosarcoma therapy.Subse-quently,the ALD and K7M2 cell membranes were successively modified on the surface of HMnO_(2) and loaded with Rh2.The tumor microenvironment(TME)-activated Rh2@HMnO_(2)-AM nanoparticles have good bone tumor-targeting and tumor-homing capabilities,excellent GSH-sensitive drug release profile and MRI capability,and attractive immuno-chemodynamic combined therapeutic efficiency.The Rh2@HMnO_(2)-AM nanoparticles can effectively trigger immunogenic cell death(ICD),activate CD4^(+)/CD8^(+)T cells in vivo,and upregulate BAX,BCL-2 and Caspase-3 in cellular level.Further results revealed that Rh2@HMnO_(2)-AM enhanced the secretion of IL-6,IFN-γand TNF-αin serum and inhibited the generation of FOXP3^(+)T cells(Tregs)in tumors.Moreover,the Rh2@HMnO_(2)-AM treatment significant restricted tumor growth in-situ tumor-bearing mice.Therefore,Rh2@HMnO_(2)-AM may serve as an effective and bio-friendly nanoparticle platform combined with immuno-therapy and chemodynamic therapy to provide a novel approach to osteosarcoma therapy. | Liwen Fu Weiying Zhang Xiaojun Zhou Jingzhong Fu Chuanglong He | 2022 | Bioactive Materials2022，7，11： | 4 |
| 14 | Apoptotic extracellular vesicles are metabolized regulators nurturing the skin and hair显示文摘Over 300 billion of cells die every day in the human body,producing a large number of endogenous apoptotic extracellular vesicles(apoEVs).Also,allogenic stem cell transplantation,a commonly used therapeutic approach in current clinical practice,generates exogenous apoEVs.It is well known that phagocytic cells engulf and digest apoEVs to maintain the body’s homeostasis.In this study,we show that a fraction of exogenous apoEVs is metabolized in the integumentary skin and hair follicles.Mechanistically,apoEVs activate the Wnt/β-catenin pathway to facilitate their metabolism in a wave-like pattern.The migration of apoEVs is enhanced by treadmill exercise and inhibited by tail suspension,which is associated with the mechanical force-regulated expression of DKK1 in circulation.Furthermore,we show that exogenous apoEVs promote wound healing and hair growth via activation of Wnt/β-catenin pathway in skin and hair follicle mesenchymal stem cells.This study reveals a previously unrecognized metabolic pathway of apoEVs and opens a new avenue for exploring apoEV-based therapy for skin and hair disorders. | Lan Ma Chider Chen Dawei Liu Zhiqing Huang Jiaqi Li Haixiang Liu Ryan Tsz Kin Kwok Benzhong Tang Bingdong Sui Xiao Zhang Jianxia Tang Xueli Mao Weiying Huang Songtao Shi Xiaoxing Kou | 2023 | Bioactive Materials2023，，1： | 3 |
| 15 | Measurement and Scaling of Mercury on Soil and Air in a Historical Artisanal Gold Mining Area in Northeastern China显示文摘The Jiapigou gold mine area, located in the upper reaches of the Songhua River, was the first and largest artisanal gold mine once in China, and it used to be prominent in two marking years(1870 and 1974). Jiapigou area had a gold mining history of more than 190 years, which was first opened in 1820. Gold extraction with algamation was applied as the dominant method of excavation from 1940 to 2008, and a total of more than 100 t of gold were extracted from the mine using this method and it was estimated that 100–200 t Hg were released, thus causing severe mercury environmental pollution in the mining area. In the experimental campaigns of this study, in situ air and soil Hg concentrations and air-soil Hg fluxes were measured from April 2009 to December 2011. The results showed that in the study area the total gaseous mercury(TGM) concentration exhibited remarkable spatial and temporal distribution patterns, i.e. the TGM gradually decreased following the increase in distance to gold mining sites in space, and the values in spring, summer and autumn were elevated by 1–2 orders of magnitude in comparison with those in winter. Furthermore, at other sampling sites the total soil mercury(TSM) concentration in spring was higher than that in autumn, except for the contrary laws demonstrated at the Erdaogou mining site. However, in spring and winter the Hg flux between air and soil was under the control of different environmental factors, and the characteristics were clear and distinct. In spring the Hg flux between air and soil was directly under the control of solar irradiation, and the releasing process was predominant with a remarkable positive correlation to solar irradiation. Nevertheless, in winter the Hg fluxes were indirectly under the control of solar irradiation, which caused thermal inversion due to the thick snow cover. The depositing process was predominant and the correlations between Hg flux and air temperature was remarkably negative, and there was a positive correlation between Hg flux and solar irradiation. | WANG Zhaojun ZHANG Gang CHEN Xiaobing ZHAO Qiaojing WANG Weiying SHENG Lianxi BIAN Hongfeng LI Zhenxin WANG Deli | 2019 | Chinese Geographical Science2019，29，2： | 3 |
| 16 | Overview of the Solar Polar Orbit Telescope Project for Space Weather Mission显示文摘The Solar Polar ORbit Telescope(SPORT) project for space weather mission has been under intensive scientific and engineering background studies since it was incorporated into the Chinese Space Science Strategic Pioneer Project in 2011.SPORT is designed to carry a suite of remote-sensing and in-situ instruments to observe Coronal Mass Ejections(CMEs),energetic particles,solar high-latitude magnetism,and the fast solar wind from a polar orbit around the Sun.The first extended view of the polar regions of the Sun and the ecliptic enabled by SPORT will provide a unique opportunity to study CME propagation through the inner heliosphere,and the solar high-latitude magnetism giving rise to eruptions and the fast solar wind.Coordinated observations between SPORT and other spaceborne/ground-based facilities within the International Living With a Star(ILWS) framework can significantly enhance scientific output.SPORT is now competing for official selection and implementation during China's 13 th Five-Year Plan period of 2016-2020. | XIONG Ming LIU Ying LIU Hao LI Baoquan ZHENG Jianhua ZHANG Cheng XIA Lidong ZHANG Hongxin RAO Wei CHEN Changya SUN Weiying WU Xia DENG Yuanyong HE Han JIANG Bo WANG Yuming WANG Chuanbing SHEN Chenglong ZHANG Haiying ZHANG Shenyi YANG Xuan SANG Peng WU Ji | 2016 | 空间科学学报2016，36，3： | 3 |
| 17 | A high-performance Mg-4.9Gd-3.2Y-1.1Zn-0.5Zr alloy via multidirectional forging after analyzing its compression behavior显示文摘A high-performance Mg-4.9Gd-3.2Y-1.1Zn-0.5Zr alloy has been fabricated by multidirectional forging(MDF)after analyzing its compression behavior.The as-homogenized alloy exhibits a high activation energy Q of deformation(~285 kJ/mol).The size of DRXed grains after compression tends to decrease as the Z-H parameter(Z)increases,showing a grain size exponent m of~4.0.Lamellar LPSO phases,kinking deformation,and bimodal microstructure are detected at the relatively low compression temperature of 350 and 400℃,while sufficient DRX can be achieved at 500℃,accompanied by the dissolution of lamellar LPSO.According to the processing maps,MDF was successfully conducted under an appropriate condition.After peak-aged at 200℃for 78 h,the MDFed billet exhibits a tensile yield strength(TYS)of 331 and 305 MPa at room temperature and 200℃,respectively.The high strength mainly results from the combination of fine grains,low Schmid factor for basal slip,sufficientβ’ageing precipitates,and directionally arranged interdendritic LPSO phases,etc.This paper provides a feasible way for the fabrication of high-performance,low-RE-content,and large-scale Mg components for industrial production. | Xiaojie Zhou Yuan Yao Jian Zhang Xiaomin Chen Weiying Huang Jing Pan Haoran Wang Maopeng Weng | 2021 | Journal of Materials Science & Technology2021，，11： | 3 |
| 18 | Three decades of changes in water environment of a large freshwater Lake and its relationship with socio-economic indicators显示文摘Tai Lake(Ch: Taihu) has attracted international attention forcyanobacteria blooms.However, the drivers of cultural eutrophication, especially long-term socio-economic indicators have been little researched. The results of research demonstrate how socioeconomic development affected quality of water and how it has been improved by anthropogenic activities. This study described variability in indicators of water quality in Tai Lakeand investigated thedrivers. Significant relationships existed between concentrations of annual mean total nitrogen(TN), total phosphorous(TP), chemical oxygen demand(COD) and biological oxygen demand(BOD), and population, per capital gross domestic production(GDP) and sewage discharge(p < 0.05). However, mechanisms causing change varied among TN, TP, COD and BOD. Before 2000, the main contributors to increases in concentrations of TN were human population, GDP and volumes of domestic sewage discharges. After 2000, discharges of industrial sewage become the primary contributor. After 1998, the regressions of annual mean TN, TP and COD on per capital GDP, population and domestic sewage discharge were reversed compared to the former period. Since 1999, an apparent inverted U-shaped relationship between environmental pollution and economic development has developed, which indicated that actions taken by governments have markedly improved quality of water in Tai Lake. The statistical relationship between BOD and per capital GDP didn't conform to the Kuznet curve. The Ushaped Kuznet curve may offer hope for the future that with significant environmental investments a high GDP can be reached and maintained without degradation of the environment, especially through appropriate management of industrial sewage discharge. | Cuicui Li Weiying Feng Fanhao Song Zhongqi He Fengchang Wu Yuanrong Zhu John P.Giesy Yingchen Bai | 2019 | Journal of Environmental Sciences2019，31，3： | 3 |
| 19 | Dark current mechanism of unpassivated mid wavelength type II InAs/GaSb superlattice infrared photodetector显示文摘We investigate the dark current mechanism for an unpassivated mid wavelength(MW) type II InAs/GaSb superlattice infrared photodetector by doing the variablearea diode tests. The bulk resistance-area product and the resistivity due to the surface current are determined to be17.72 X cm2 and 704.23 X cm at 77 K, respectively. It is found that for all the mesa sizes used, the dark current is dominated or predominated by the surface component, and with scaling back the mesa size, the surface current increases while the bulk component decreases. The activation energy is determined to be 145 meV for the temperature range around 140–280 K, while it is 6 meV when temperature is below 100 K. It is also found that the dark current is dominated by the generation-recombination current for the MW device when temperature is between140 and 280 K. | Qiong Li Wenquan Ma Yanhua Zhang Kai Cui Jianliang Huang Yang Wei Ke Liu Yulian Cao Weiying Wang Yali Liu Peng Jin | 2014 | Chinese Science Bulletin2014，59，28： | 3 |
| 20 | Phase Diagram Prediction of the Al_2O_3-SiO_2-La_2O_3 System显示文摘Rare earth oxide systems Al2O3-La2O3 and SiO2-La2O3 were thermodynamically assessed and optimized with the substitution model. The obtained model parameters and Gibbs free energy of tine compounds and pure components were applied to the prediction of the liquidus surface and isothermal sections of Al2O3-SiO2-La2O3 | Lin LI and Zhujun TANG(Department of Materials Science & Engineering, Shanghai University, Shanghai 200072, China) To whom correspondence should be addressedE-mail: liling@public6.sta.net.cn Weiying SUN and Peiling WANG(Shanghai Institute of Ceramics, Chi | 1999 | Journal of Materials Science & Technology1999，15，5： | 3 |
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