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| 1 | Cadmium accumulation and tolerance of two castor cultivars in relation to antioxidant systems显示文摘To investigate the effects of Cd on tolerance and antioxidant activities of castor, two different castor(Ricinus communis L.) cultivars(Zibo No. 5 and Zibo No. 8) were used for a hydroponic experiment(0, 1 and 2 mg/L Cd) and a pot experiment using Cd-contaminated soil(34 mg/kg) with the addition of ethylenedinitrilotetraacetic acid(EDTA). The results indicated that there were significant differences between the two cultivars with respect to Cd uptake in shoots(113–248 mg/kg for Zibo No. 5 and 130–288 mg/kg Zibo No. 8), biomass tolerance indexes(64.9%–74.6% for Zibo No. 5 and 80.1%–90.9% for Zibo No. 8) in the hydroponic experiment and survival rates(0% for Zibo No. 5 and 100% for Zibo No. 8)determined by the addition of EDTA in the pot experiment, suggesting that Zibo No. 8 has higher tolerance than Zibo No. 5. Moreover, the castor cultivars have low bioconcentration factors(4.80% for Zibo No. 5 and 5.43% for Zibo No. 8) and low translocation factors(<1%).Consequently, Zibo No. 8 can participate in Cd phytostabilization in highly Cd-polluted areas. The results indicated that glutathione(GSH) as a non-enzymatic antioxidant, and antioxidant enzymes including superoxide dismutase(SOD), catalase(CAT) and guaiacol peroxidase(GPX), were cultivar- and dose-dependent. The higher tolerance of Zibo No. 8compared with Zibo No. 5 can be attributed to the higher GSH levels in the root and higher GPX activity in the leaf. | Hanzhi Zhang Qingjun Guo Junxing Yang Tongbin Chen Guangxu Zhu Marc Peters Rongfei Wei Liyan Tian Chunyu Wang Deyun Tan Jie Ma Gangming Wang Yingxin Wan | 2014 | Journal of Environmental Sciences2014,26,10: | 15 |
| 2 | Ultrasensitive skin‐like wearable optical sensors based on glass micro/nanofibers显示文摘Electronic skin,a class of wearable electronic sensors that mimic the functionalities of human skin,has made remarkable success in applications including health monitoring,human-machine interaction and electronic-biological interfaces.While electronic skin continues to achieve higher sensitivity and faster response,its ultimate performance is fundamentally limited by the nature of low-frequency AC currents.Herein,highly sensitive skin-like wearable optical sensors are demonstrated by embedding glass micro/nanofibers(MNFs)in thin layers of polydimethylsiloxane(PDMS).Enabled by the transition from guided modes into radiation modes of the waveguiding MNFs upon external stimuli,the skin-like optical sensors show ultrahigh sensitivity(1870 k·Pa^-1),low detection limit(7 mPa)and fast response(10μs)for pressure sensing,significantly exceeding the performance metrics of state-of-the-art electronic skins.Electromagnetic interference(EMI)-free detection of high-frequency vibrations,wrist pulse and human voice are realized.Moreover,a five-sensor optical data glove and a 2×2-MNF tactile sensor are demonstrated.These initial results pave the way toward a new category of optical devices ranging from ultrasensitive wearable sensors to optical skins. | Lei Zhang Jing Pan Zhang Zhang Hao Wu Ni Yao Dawei Cai Yingxin Xu Jin Zhang Guofei Sun Liqiang Wang Weidong Geng Wenguang Jin Wei Fang Dawei Di Limin Tong | 2020 | Opto-Electronic Advances2020,3,3: | 12 |
| 3 | Total phenolic, flavonoid content, and antioxidant activity of flour, noodles, and steamed bread made from different colored wheat grains by three milling methods显示文摘The objective of this study was to evaluate the effects of wheat variety, food processing, and milling method on antioxidant properties. Black wheat variety Heibaoshi 1 had the highest total phenolic content(659.8 μg gallic acid equivalents g-1), total flavonoid content(319.3 μg rutin equivalents g-1), and antioxidant activity, whereas light purple wheat variety Shandongzimai 1 had the lowest total flavonoid content(236.2 μg rutin equivalents g-1) and antioxidant activity. Whole wheat flour and partially debranned grain flour had significantly higher total phenolic contents, total flavonoid contents, and antioxidant activity than refined flour(P < 0.05). Compared with flour, total phenolic contents, total flavonoid contents and antioxidant activity decreased in noodles and steamed bread, whereas noodles had slightly higher total phenolic and flavonoid content than steamed bread. Antioxidant activities(by ferric reducing ability of plasma assay) of steamed bread made from whole wheat flour, partially debranned grain flour, and refined flour were 23.5%, 21.1%, and 31.6% lower, respectively, than the corresponding values of flour. These results suggested that black whole wheat flour and partially debranned grain flour are beneficial to human health. | Yaoguang Li Dongyun Ma Dexiang Sun Chenyang Wang Jian Zhang Yingxin Xie Tiancai Guo | 2015 | The Crop Journal2015,3,4: | 7 |
| 4 | Characteristics of microbial community functional structure of a biological coking wastewater treatment system显示文摘Nitrogenous heterocyclic compounds are key pollutants in coking wastewater; however, the functional potential of microbial communities for biodegradation of such contaminants during biological treatment is still elusive. Herein, a high throughput functional gene array(Geo Chip 5.0)in combination with Illumina Hi Seq2500 sequencing was used to compare and characterize the microbial community functional structure in a long run(500 days) bench scale bioreactor treating coking wastewater, with a control system treating synthetic wastewater. Despite the inhibitory toxic pollutants, Geo Chip 5.0 detected almost all key functional gene(average61,940 genes) categories in the coking wastewater sludge. With higher abundance, aromatic ring cleavage dioxygenase genes including multi ring1,2 diox; one ring2,3 diox; catechol represented significant functional potential for degradation of aromatic pollutants which was further confirmed by Illumina Hi Seq2500 analysis results. Response ratio analysis revealed that three nitrogenous compound degrading genes-nbz A(nitro-aromatics), tdn B(aniline), and scn ABC(thiocyanate) were unique for coking wastewater treatment, which might be strong cause to increase ammonia level during the aerobic process. Additionally, Hi Seq2500 elucidated carbozole and isoquinoline degradation genes in the system. These findings expanded our understanding on functional potential of microbial communities to remove organic nitrogenous pollutants;hence it will be useful in optimization strategies for biological treatment of coking wastewater. | Dev Raj Joshi Yu Zhang Hong Zhang Yingxin Gao Min Yang | 2018 | Journal of Environmental Sciences2018,30,1: | 6 |
| 5 | Initial gut microbiota structure affects sensitivity to DSS-induced colitis in a mouse model显示文摘The dextran sulfate sodium (DSS)-induced colitis model is a widely applied mouse model, but controversial results have been obtained from experiments using the same mouse strain under the same conditions. Because the gut microbiota play an important role in DSS-induced colitis, it is essential to evaluate the influence of the initial gut microbiota in this model. Here, we identified significant variations in the initial gut microbiota of different batches of mice and found that the initial intestinal microbiota had a profound influence on DSS-induced colitis. We performed three independent trials using the same C57BL/6J mouse model with DSS treatment and used high-throughput 16S rRNA gene sequencing to analyze the gut microbiota. We found that the structure and composition of the gut microbiota in mice with severe colitis, as compared with mice with milder colon damage, had unique features, such as an increase in Akkermansia bacteria and a decrease in Barnesiella spp. Moreover, these varied gut bacteria in the different trials also showed different responses to DSS treatment. Our work suggests that, in studies using mouse models, the gut microbiota must be considered when examining mechanisms of diseases, to ensure that comparable results are obtained. | Min Li Yanqiu Wu Yingxin Hu Liping Zhao Chenhong Zhang | 2018 | Science China(Life Sciences)2018,61,7: | 6 |
| 6 | Machine Learning−based Weather Support for the 2022 Winter Olympics显示文摘1.A key support for the 2022 Winter Olympics The XXIV Olympic Winter Games are scheduled to take place from 4 to 22 February 2022,followed by the Paralympic Games from 4 to 13 March,in Beijing and towns in the neighboring Hebei Province,China.Weather plays an extremely important role in the outcome of the games(Chen et al.,2018).It can not only cause a difference between a medal or not,but affect the safety of athletes.Success of the Winter Olympics will greatly depend on weather conditions at the outdoor competition venues,dealing with many weather elements including the snow surface temperature,apparent temperature,gust wind speed,snow,visibility,etc.To ensure that the scheduled games go smoothly,it is imperative to have hourly or even every 10-minutely forecasts as well as updated weather-related risk assessments at the venues for the next 240 hours.So far,the Beijing/Hebei Meteorological Observatory has already started intelligent weather forecasting at 3-km resolution based on the results of numerical weather prediction(NWP)models.However,these experiments have suggested that the current forecasting techniques are incapable of capturing the complex mountain weather variations around some venues.The forecasting capability of NWP is constrained partly by limited knowledge of the local weather mechanisms. | Jiangjiang XIA Haochen LI Yanyan KANG Chen YU Lei JI Lve WU Xiao LOU Guangxiang ZHU Zaiwen Wang Zhongwei YAN Lizhi WANG Jiang ZHU Pingwen ZHANG Min CHEN Yingxin ZHANG Lihao GAO Jiarui HAN | 2020 | Advances in Atmospheric Sciences2020,37,9: | 6 |
| 7 | Differential gene expression analysis of ‘Chili’ (Pyrus bretschneideri) fruit pericarp with two types of bagging treatments显示文摘Preharvest bagging is a simple,grower-friendly and safe physical protection technique commonly applied to many fruits,and the application of different fruit bags can have various effects.To explore the molecular mechanisms underlying the fruit quality effects of different bagging treatments,digital gene expression(DGE)profiling of bagged and unbagged‘Chili’(Pyrus bretschneideri Rehd.)pear pericarp during development was performed.Relative to unbagged fruit,a total of 3022 and 769 differentially expressed genes(DEGs)were detected in the polyethylene(PE)-bagged and non-woven fabric-bagged fruit,respectively.DEGs annotated as photosynthesis-antenna proteins and photosynthesis metabolism pathway were upregulated in non-woven fabric-bagged fruit but downregulated in the PE-bagged fruit.Non-woven fabric bagging inhibited lignin synthesis in‘Chili’pear pericarp by downregulating DEGs involved in phenylpropanoid biosynthesis;consequently,the fruit lenticels in non-woven fabric-bagged fruit were smaller than those in the other treatments.The results indicate that the non-woven fabric bagging method has a positive effect on the appearance of‘Chili’pear fruit but neither of the two bagging treatments is conducive to the accumulation of soluble sugar. | Yuling Wang Xinfu Zhang Ran Wang Yingxin Bai Chenglian Liu Yongbing Yuan Yingjie Yang Shaolan Yang | 2017 | Horticulture Research2017,4,1: | 6 |
| 8 | Biosynthesis of poly-3-hydroxybutyrate with a high molecular weight by methanotroph from methane and methanol显示文摘Poly-3-hydroxybutyrate (哲学学士) 能被细菌的各种各样的种类生产。在可能的碳来源之中,甲烷和甲醇能是为哲学学士的生产的合适的底层。甲烷不仅象天然气,而且作为简历气体便宜、丰富。甲醇能也处于一些条件维持 methanotrophic 活动。methanotrophic 紧张 Methylosinus trichosporium IMV3011 能在一个简短非无菌的过程与甲烷和甲醇积累哲学学士。液体甲醇(0.1%) 被增加改进甲烷的氧化。研究用饮料烧瓶被执行。耕作在二个阶段被执行:在除了在批文化的必要营养素(铵,硝酸盐,磷,铜,铁(III ) ,镁或乙烯肼 tetraacetate (EDTA )) 的条件下面的一个连续生长阶段和一个哲学学士累积阶段。细胞的最合适的生长时间是 144 h,这被发现。然后,为第二个阶段的一个优化文化条件被决定,在哪个 PHB 集中能是增加到 0.6 g/L 的大部分。为了增加,哲学学士满意的、柠檬性的酸作为 tricarboxylic 酸周期(TCA ) 的一个禁止者被增加。柠檬性的酸为 PHB 累积是有利的,这被发现,并且 PHB 收益被增加到 40%(w/w ) 从在滋养的缺乏耕作以后的 12% 的起始的收益(w/w ) 。生产的哲学学士具有与直到 1.5 × 1 的分子的重量很高质量 0 6 Da。 | Yingxin Zhang Jiaying Xin Linlin Chen Hao Song Chungu Xia | 2008 | Journal of Natural Gas Chemistry2008,17,1: | 5 |
| 9 | Allometric response of perennial Pennisetum centrasiaticum Tzvel to nutrient and water limitation in the Horqin Sand Land of China显示文摘Optimal partitioning theory(OPT)suggests that plants should allocate relatively more biomass to the organs that acquire the most limited resources.The assumption of this theory is that plants trade off the biomass allocation between leaves,stems and roots.However,variations in biomass allocation among plant parts can also occur as a plant grows in size.As an alternative approach,allometric biomass partitioning theory(APT)asserts that plants should trade off their biomass between roots,stems and leaves.This approach can minimize bias when comparing biomass allocation patterns by accounting for plant size in the analysis.We analyzed the biomass allocation strategy of perennial Pennisetum centrasiaticum Tzvel in the Horqin Sand Land of northern China by treating samples with different availabilities of soil nutrients and water,adding snow in winter and water in summer.We hypothesized that P.centrasiaticum alters its pattern of biomass allocation strategy in response to different levels of soil water content and soil nitrogen content.We used standardized major axis(SMA)to analyze the allometric relationship(slope)and intercept between biomass traits(root,stem,leaf and total biomass)of nitrogen/water treatments.Taking plant size into consideration,no allometric relationships between different organs were significantly affected by differing soil water and soil nitrogen levels,while the biomass allocation strategy of P.centrasiaticum was affected by soil water levels,but not by soil nitrogen levels.The plasticity of roots,leaves and root/shoot ratios was‘true’in response to fluctuations in soil water content,but the plasticity of stems was consistent for trade-offs between the effects of water and plant size.Plants allocated relatively more biomass to roots and less to leaves when snow was added in winter.A similar trend was observed when water was added in summer.The plasticity of roots,stems and leaves was a function of plant size,and remained unchanged in response to different soil nitrogen levels. | Wei MAO TongHui ZHANG YuLin LI XueYong ZHAO YingXin HUANG | 2012 | Journal of Arid Land2012,4,2: | 4 |
| 10 | Adsorption of cesium from aqueous solution using agricultural residue – Walnut shell: Equilibrium, kinetic and thermodynamic modeling studies显示文摘 | Dahu Ding Yingxin Zhao Shengjiong Yang Wansheng Shi Zhenya Zhang Zhongfang Lei Yingnan Yang | 2013 | Water Research2013,,: | 4 |
| 11 | H_∞ output tracking control for flight control systems with time-varying delay显示文摘For flight control systems with time-varying delay,an H∞output tracking controller is proposed.The controller is designed for the discrete-time state-space model of general aircraft to reduce the effects of uncertainties of the mathematical model,external disturbances,and bounded time-varying delay.It is assumed that the feedback-control loop is closed by the communication network,and the network-based control architecture induces time-delays in the feedback information.Suppose that the time delay has both an upper bound and a lower bound.By using the Lyapunov-Krasovskii function and the linear matrix inequality(LMI),the delay-dependent stability criterion is derived for the time-delay system.Based on the criterion,a state-feedback H∞output tracking controller for systems with norm-bounded uncertainties and time-varying delay is presented.The control scheme is applied to the high incidence research model(HIRM),which shows the effectiveness of the proposed approach. | Zhang Yingxin Wang Qing Dong Chaoyang Jiang Yifan | 2013 | Chinese Journal of Aeronautics2013,26,5: | 4 |
| 12 | Efficient adsorption of Mn(Ⅱ) by layered double hydroxides intercalated with diethylenetriaminepentaacetic acid and the mechanistic study显示文摘In this study,greatly enhanced Mn(Ⅱ) adsorption was achieved by as-synthesized diethylenetriaminepentaacetate acid intercalated Mg/Al layered double hydroxides (LDHs-DTPA).The adsorption capacity of LDHs-DTPA was 83.5 mg/g,which is much higher than that of LDHs-EDTA (44.4 mg/g),LDHs-Oxalate (21.6 mg/g) and LDHs (28.8 mg/g).The adsorption data of aqueous Mn(Ⅱ) using LDHs-DTPA could be well described by the pseudosecond order kinetics and Langrnuir isotherm model.Thermodynamics study results also showed that the adsorption process of Mn(Ⅱ) by LDHs-DTPA was exothermic as indicated by the negative △H value.Furthermore,based on the structural,morphological and thermostable features,as well as FT-IR and XPS characterizations of LDHs-DTPA and the pristine LDHs,the adsorption mechanism of Mn(Ⅱ) was proposed.The carboxyl groups of DTPA were proposed to be the main binding sites for Mn(Ⅱ),and the hydroxyl groups of LDHs also played a minor role in the adsorption process.Among the three common regeneration reagents,0.1 mol/L Na2CO3 was the best for reusing LDHs-DTPA in Mn(Ⅱ) adsorption.Besides,the Mn(Ⅱ) adsorption performance could be hindered in the presence of typical inorganic ions,especially cations.Further specific modifications of LDHs-DTPA are suggested to get more selective adsorption of Mn(ll) in practical applications. | Mingjie Huang Yingxin Zhang Wei Xiang Tao Zhou Xiaohui Wu Juan Mao | 2019 | Journal of Environmental Sciences2019,31,11: | 4 |
| 13 | Effects of GS3 and GL3.1 for Grain Size Editing by CRISPR/Cas9 in Rice显示文摘Grain size is one of key agronomic traits associated with grain yield and grain quality. Both major quantitative trait loci GS3 and GL3.1 play a predominant role in negative regulation of grain size. In this study, a CRISPR/Cas9-mediated multiplex genome editing system was used to simultaneously edit GS3 and GL3.1 in a typical japonica rice Nipponbare. In T1 generation, we found that gs3 formed slender grain with lower chalkiness percentage, while gs3gl3.1 produced larger grain with higher chalkiness percentage. In terms of other agronomic traits, flag leaf size, grain number and grain yield of both gs3 and gs3gl3.1 mutants were affected. It is noteworthy that gs3 and gs3gl3.1 mutants both led to dramatical reduction of grain number, thereby decreased grain yield. In conclusion, these results indicated that knockout of GS3 and GL3.1 could rapidly improve grain size, but probably have some negative influences on grain quality and grain yield. | Chen Yuyu Zhu Aike Xue Pao Wen Xiaoxia Cao Yongrun Wang Beifang Zhang Yue Shah Liaqat Cheng Shihua Cao Liyong Zhang Yingxin | 2020 | Rice science2020,27,5: | 4 |
| 14 | Ultraprecision intersatellite laser interferometry显示文摘Precision measurement tools are compulsory to reduce measurement errors or machining errors in the processes of calibration and manufacturing.The laser interferometer is one of the most important measurement tools invented in the 20th century.Today,it is commonly used in ultraprecision machining and manufacturing,ultraprecision positioning control,and many noncontact optical sensing technologies.So far,the state-of-the-art laser interferometers are the ground-based gravitational-wave detectors,e.g.the Laser Interferometer Gravitational-wave Observatory(LIGO).The LIGO has reached the measurement quantum limit,and some quantum technologies with squeezed light are currently being tested in order to further decompress the noise level.In this paper,we focus on the laser interferometry developed for space-based gravitational-wave detection.The basic working principle and the current status of the key technologies of intersatellite laser interferometry are introduced and discussed in detail.The launch and operation of these large-scale,gravitational-wave detectors based on space-based laser interferometry is proposed for the 2030s. | Min Ming Yingxin Luo Yu-Rong Liang Jing-Yi Zhang Hui-Zong Duan Hao Yan Yuan-Ze Jiang Ling-Feng Lu Qin Xiao Zebing Zhou Hsien-Chi Yeh | 2020 | International Journal of Extreme Manufacturing2020,2,2: | 3 |
| 15 | Structural mechanism of cooperative activation of the human calcium-sensing receptor by Ca^(2+) ions and L-tryptophan显示文摘The human calcium-sensing receptor(CaSR)is a class C G protein-coupled receptor(GPCR)responsible for maintaining Ca^(2+)homeostasis in the blood.The general consensus is that extracellular Ca^(2+)is the principal agonist of CaSR.Aliphatic and aromatic L-amino acids,such as L-Phe and L-Trp,increase the sensitivity of CaSR towards Ca^(2+)and are considered allosteric activators.Crystal structures of the extracellular domain(ECD)of CaSR dimer have demonstrated Ca^(2+)and L-Trp binding sites and conformational changes of the ECD upon Ca^(2+)/L-Trp binding.However,it remains to be understood at the structural level how Ca^(2+)/L-Trp binding to the ECD leads to conformational changes in transmembrane domains(TMDs)and consequent CaSR activation.Here,we determined the structures of full-length human CaSR in the inactive state,Ca^(2+)-or L-Trp-bound states,and Ca^(2+)/L-Trp-bound active state using single-particle cryo-electron microscopy.Structural studies demonstrate that L-Trp binding induces the closure of the Venus flytrap(VFT)domain of CaSR,bringing the receptor into an intermediate active state.Ca^(2+)binding relays the conformational changes from the VFT domains to the TMDs,consequently inducing close contact between the two TMDs of dimeric CaSR,activating the receptor.Importantly,our structural and functional studies reveal that Ca^(2+)ions and L-Trp activate CaSR cooperatively.Amino acids are not able to activate CaSR alone,but can promote the receptor activation in the presence of Ca^(2+).Our data provide complementary insights into the activation of class C GPCRs and may aid in the development of novel drugs targeting CaSR. | Shenglong Ling Pan Shi Sanling Liu Xianyu Meng Yingxin Zhou Wenjing Sun Shenghai Chang Xing Zhang Longhua Zhang Chaowei Shi Demeng Sun Lei Liu Changlin Tian | 2021 | Cell Research2021,31,4: | 3 |
| 16 | Impacts of produced water origin on bacterial community structures of activated sludge显示文摘The purpose of this study was to reveal how activated sludge communities respond to influent quality and indigenous communities by treating two produced waters from different origins in a batch reactor in succession. The community shift and compositions were investigated using Polymerase Chain Reaction–denaturing gradient gel electrophoresis(PCR–DGGE) and further16 S ribosomal DNA(r DNA) clone library analysis. The abundance of targeted genes for polycyclic aromatic hydrocarbon(PAH) degradation, nah Ac/phn Ac and C12O/C23 O, was tracked to define the metabolic ability of the in situ microbial community by Most Probable Number(MPN) PCR. The biosystem performed almost the same for treatment of both produced waters in terms of removals of chemical oxygen demand(COD) and PAHs. Sludge communities were closely associated with the respective influent bacterial communities(similarity > 60%), while one sludge clone library was dominated by the Betaproteobacteria(38%) and Bacteriodetes(30%)and the other was dominated by Gammaproteobacteria(52%). This suggested that different influent and water quality have an effect on sludge community compositions. In addition, the existence of catabolic genes in sludge was consistent with the potential for degradation of PAHs in the treatment of both produced waters. | Zhenyu Wang Feng Pan Abd El-Latif Hesham Yingxin Gao Yu Zhang Min Yang | 2015 | Journal of Environmental Sciences2015,27,11: | 3 |
| 17 | Quantitative prediction of the bitterness of atomoxetine hydrochloride and taste-masked using hydroxypropyl-β-cyclodextrin:A biosensor evaluation and interaction study显示文摘The bitterness of a drug is a major challenge for patient acceptability and compliance,especially for children.Due to the toxicity of medication,a human taste panel test has certain limitations.Atomoxetine hydrochloride(HCl),which is used for the treatment of attention deficit/hyperactivity disorder(ADHD),has an extremely bitter taste.The aim of this work is to quantitatively predict the bitterness of atomoxetine HCl by a biosensor system.Based on the mechanism of detection of the electronic tongue(Etongue),the bitterness of atomoxetine HCl was evaluated,and it was found that its bitterness was similar to that of quinine HCl.The bitterness threshold of atomoxetine HCl was 8.61μg/ml based on the Change of membrane Potential caused by Adsorption(CPA)value of the BT0 sensor.In this study,the taste-masking efficiency of 2-hydroxypropyl-β-cyclodextrin(HP-β-CyD)was assessed by Euclidean distances on a principle component analysis(PCA)map with the SA402B Taste Sensing System,and the host–guest interactions were investigated by differential scanning calorimetry(DSC),powder X-ray diffraction(XRD),nuclear magnetic resonance(NMR)spectroscopy and scanning electron microscopy(SEM).Biosensor evaluation and characterization of the inclusion complex indicated that atomoxetine HCl could actively react with 2-hydroxypropyl-β-cyclodextrin. | Shuying Li Ying Zhang Abdur Rauf Khan Shuwang He Yingxin Wang Jiangkang Xu Guangxi Zhai | 2020 | Asian Journal of Pharmaceutical Sciences2020,15,4: | 2 |
| 18 | Antioxidant activity, mutagenicity/anti-mutagenicity, and clastogenicity/anti-clastogenicity of lutein from marigold flowers显示文摘 | Mingchen Wang Rong Tsao Shanfeng Zhang Ziming Dong Raymond Yang Jianhua Gong Yingxin Pei | 2006 | Food and Chemical Toxicology2006,,9: | 2 |
| 19 | Effect of pulsatile perfusion during cardiopulmonary bypass in terms of radial artery sphygmogram显示文摘OBJECTIVE: To investigate a quantitative method for using radial artery pulse waveforms to assess the effect of pulsatile flow during cardiopulmonary bypass(CPB).METHODS: A total of 34 adults with heart disease who underwent open-heart surgery between April2010 and January 2011 were randomized into a pulsatile perfusion group(n=17) and a non-pulsatile perfusion group(n=17). Radial arterial pulse waveforms of pulsatile and non-pulsatile perfusion patients were observed and compared before and during CPB.RESULTS: No pulse waveform could be detected at patients' radial artery in both groups when the aorta was cross-clamped. Pulse waveforms could be detected at pulsatile perfusion patients' radial artery, but could not be detected at non-pulsatile perfusion patients' radial artery during CPB. Additionally, patients' pulse waveforms during pulsatile perfusion were lower than those before the operation.CONCLUSION: Our findings indicate that radial artery sphygmogram can be used as a valid indicator to evaluate the effectiveness of pulsatile perfusion during CPB. | Zhifeng Zhang Jiatuo Xu Enyuan Zhu Qi Zhang Lu Yu Yongbing Qiu Jianguo Tang Zhaofu Fei Xin Li Liping Tu Chouping Han Ying Liu Zhen Guo Changle Zhou Meiyu Shi Yingxin Qian Yimin Bao Xinming Ji | 2014 | Journal of Traditional Chinese Medicine2014,34,6: | 2 |
| 20 | Microstructure and mechanical properties of repair welds of low-pressure sand-cast Mg?Y?RE?Zr alloy by tungsten inert gas welding显示文摘The sand castings of Mg-Y-RE-Zr series alloys are widely utilized in the large scales and complex shapes in the aerospace industry,as a result of which there are always some cast defects in the products. In this study, the feasibility of repair welding of sand-cast Mg-4 Y-3 RE-0.5 Zr alloy by tungsten inert gas(TIG) welding was scrutinized with different welding currents from 150 to 210 A. The results indicated that defect-free repaired joints with good appearance could be acquired at 170 and 190 A. Interestingly, the grain size of the fusion zone(FZ) was refined initially and then increased with the linear increment of welding current. Because at the higher heat inputs, although the cooling rate of the molten pool was reduced, substantial constitutional supercooling for the grain refinement was attained after the Zr particles were transformed into Zr solutes. The tensile strength of the repaired joint at 170 A was 195 MPa with the maximum joint efficiency of 87.8%, and the elongation reached to 124.4% of the sand-cast base material(BM). However, serious grain coarsening and continuous eutectic structures generated in heat-affected zone(HAZ) above 190 A resulted in the weakening of the joint due to the brittle intergranular fracture. | Xin Tong Guohua Wu Liang Zhang Yingxin Wang Wencai Liu Wenjiang Ding | 2022 | Journal of Magnesium and Alloys2022,10,1: | 2 |