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| 1 | Inulin Can Alleviate Metabolism Disorders in ob/ob Mice by Partially Restoring Leptinrelated Pathways Mediated by Gut Microbiota显示文摘Inulin has been used as a prebiotic to alleviate glucose and lipid metabolism disorders in mice and humans by modulating the gut microbiota. However, the mechanism underlying the alleviation of metabolic disorders by inulin through interactions between the gut microbiota and host cells is unclear. We use ob/ob mice as a model to study the effect of inulin on the cecal microbiota by16 S rRNA gene amplicon sequencing and its interaction with host cells by transcriptomics. The inulin-supplemented diet improved glucose and lipid metabolism disorder parameters in ob/ob mice,alleviating fat accumulation and glucose intolerance. The a diversity of gut microbial community of ob/ob mice was reduced after inulin treatment, while the b diversity tended to return to the level of wild type mice. Interestingly, Prevotellaceae UCG 001(family Prevotellaceae) was obviously enriched after inulin treatment. A comparative analysis of the gene expression profile showed that the cecal transcriptome was changed in leptin gene deficiency mice, whereas the inulin-supplemented diet partially reversed the changes in leptin gene-related signaling pathways, especially AMPK signaling pathway, where the levels of gene expression became comparable to those in wild type mice.Further analysis indicated that Prevotellaceae UCG 001 was positively correlated with the AMPK signaling pathway, which was negatively correlated with markers of glycolipid metabolism disorders. Our results suggest that the inulin-supplemented diet alleviates glucose and lipid metabolism disorders by partially restoring leptin related pathways mediated by gut microbiota. | Xiaofeng Song Liang Zhong Na Lyu Fei Liu Boxing Li Yanan Hao Yong Xue Jing Li Yuqing Feng Yue Ma Yongfei Hu Baoli Zhu | 2019 | Genomics, Proteomics & Bioinformatics2019,17,1: | 12 |
| 2 | Simple PID Parameter Tuning Method Based on Outputs of the Closed Loop System显示文摘Most of the existing PID parameters tuning methods are only effective with pre-known accurate system models, which often require some strict identification experiments and thus infeasible for many complicated systems. Actually, in most practical engineering applications, it is desirable for the PID tuning scheme to be directly based on the input-output response of the closed-loop system. Thus, a new parameter tuning scheme for PID controllers without explicit mathematical model is developed in this paper. The paper begins with a new frequency domain properties analysis of the PID controller. After that, the definition of characteristic frequency for the PID controller is given in order to study the mathematical relationship between the PID parameters and the open-loop frequency properties of the controlled system. Then, the concepts of M-field and θ-field are introduced, which are then used to explain how the PID control parameters influence the closed-loop frequency-magnitude property and its time responses. Subsequently, the new PID parameter tuning scheme, i.e., a group of tuning rules, is proposed based on the preceding analysis. Finally, both simulations and experiments are conducted, and the results verify the feasibility and validity of the proposed methods. This research proposes a PID parameter tuning method based on outputs of the closed loop system. | HAN Jianda ZHU Zhiqiang JIANG Ziya HE Yuqing | 2016 | Chinese Journal of Mechanical Engineering2016,29,3: | 12 |
| 3 | Mapping of the nuclear fertility restorer gene for HL cytoplasmic male sterility in rice using microsatellite markers显示文摘Bulked segregant analysis (BSA) of a BC1 population derived from Congguang 41A//Miyang 23/Congguang 41B was used to map the nuclear fertility restorer gene for Honglian (HL) cytoplasmic male sterility. One hundred and fifty-nine microsatellite primer pairs were screened for polymorphisms between the parents and between two bulks representing fertile and sterile plants. One microsatellite marker RM258 produced polymorphic products. The nuclear fertility restorer gene for HL cytoplasmic male sterility was mapped on chromosome 10, 7.8cM from RM258. The restorer gene may be clustered on chromosome. | HUANG Qingyang HE Yuqing JING Runchun ZHU Renshan ZHU Yingguo | 2000 | Chinese Science Bulletin2000,45,5: | 8 |
| 4 | Mechanism of acupuncture regulating visceral sensation and mobility显示文摘Chinese ancient medical scientists have long focused on the internal and external contacts between acupoints on the surface of the body and the viscera.The Miraculous Pivot(it is one of the earliest medical classics in China)stated,“Twelve regular channels belong to the zang-fu organs internally,and connect to the extremities and joints externally.”Traditional Chinese medicine considers acupoints as defined areas where the Qi of viscera and meridians are transfused.These include the reaction points of visceral diseases on the body surface as well as the acupuncture trigger points that promote the flow of Qi and blood,and regulate visceral function.Chinese ancient medical scientists classified the specificity of the main acupoints in the body based on the meridian doctrine,which has been instructing clinical application for about 2000 years.Laws on the domino effect of acupoints have mainly focused on conclusions to clinical experiences.Indications of some acupoints exceed the practical paradigm since the excessive extension occurred during theory derivation.The current research direction on acupuncture focuses on three aspects:the effectiveness of acupuncture and moxibustion;the relevances and associations between meridians and viscera;and the physical and chemical properties and relevant physical basis of acupoints.The relevance between meridians and viscera is the central theory in the meridian doctrine,and acupoints are regarded as an important link in the relationship between meridians and viscera.Specific relationships between acupoints and target organs exist.Stimulating different acupoints on the body surface can help deal with different diseases,especially visceral diseases.In addition,acupoints have a dual function of reflecting and treating visceral diseases.There is no systemic research available on acupoint specificity,despite current knowledge and clinical experiences,which results in a weak foundation for acupuncture theory.This study focuses on the relevance and associations between meridians and viscera.A summary of the mechanisms of acupuncture regulating visceral sensation and mobility and the specific relationships between acupoints and their target organs are presented in this review. | Peijing Rong Bing Zhu Yuqing Li Xinyan Gao Hui Ben Yanhua Li Liang Li Wei He Rupeng Liu Lingling Yu | 2011 | Frontiers of Medicine2011,5,2: | 8 |
| 5 | A draft sequence of the rice (Oryza sativa ssp. indica) genome显示文摘The sequence of the rice genome holds fundamental information for its biology, including physiology, genetics, development, and evolution, as well as information on many beneficial phenotypes of economic significance. Using a 'whole genome shotgun' approach, we have pro-duced a draft rice genome sequence of Oryza sativa ssp. in-dica, the major crop rice subspecies in China and many other regions of Asia. The draft genome sequence is constructed from over 4.3 million successful sequencing traces with an accumulative total length of 2214.9 Mb. The initial assembly of the non-redundant sequences reached 409.76 Mb in length, based on 3.30 million successful sequencing traces with a total length of 1797.4 Mb from an indica variant cultivar 93-11, giving an estimated coverage of 95.29% of the rice genome with an average base accuracy of higher than 99%. The coverage of the draft sequence, the randomness of the sequence distribution, and the consistency of BIG-ASSEM-BLER, a custom-designed software package | YU Jun, HU Songnian, WANG Jun,LI Songgang WONG Ka-Shu Gane, LIU Bin,DENG Yajun, DAI Li, ZHOU Yan,ZHANG Xiuqing, CAO Mengliang, LIU Jing,SUN Jiandong , TANG Jiabin, CHEN Yanjiong,HUANG Xiaobing, LIN Wei, YE Chen, TONG Wei,CONG Lijuan, GENG Jianing, HAN Yujun, LI Lin,LI Wei, HU Guangqiang, HUANG Xiangang,LI Wenjie, LI Jian, LIU Zhanwei, LI Long,LIU Jianping, Ql Qiuhui, LIU Jinsong, LI Li,WANG Xuegang, LU Hong, WU Tingling,ZHU Miao, Nl Peixiang, HAN Hua, DONG Wei,REN Xiaoyu, FENG Xiaoli, GUI Peng,LI Xianran, WANG Hao, XU Xin, ZHAI Wenxue,XU Zhao, ZHANG Jinsong, HE Sijie,ZHANG Jianguo, XU Jichen, ZHANG Kunlin,ZHENG Xianwu, DONG Jianhai, ZENG Wanyong,TAO Lin, CHEN Xuewei, HE Jun, LIU Daofeng,TIAN Wei, TIAN Chaoguang, XIA Hongai,LI Gang, GAO Hui, LI Ping, CHEN Wei ,WANG Xudong, ZHANG Yong, HU Jianfei,WANG Jing, LIU Song, YANG Jian,ZHANG Guangyu, XIONG Yuqing, LI Zhijie,MAO Long, ZHOU Chengshu, ZHU Zhen,CHEN Runsheng, HAO Bailin,ZHENG Weimou, CHEN Shouyi, QUO Wei,LI Guojie, LIU Siqi, HUANG Guyang,TAO Ming, WANG Jian, ZHU Lihuang,YUAN Longping& YANG HuanmingBeijing Genomics Institute/Center of Genomics & Bioinformatics, Chinese Academy of Sciences, Beijing 101300, China Hangzhou Genomics Institute/Institute of Bioinformatics of Zhejiang University/Key Laboratory of Bioinformatics of Zhejiang Province, Hangzhou 310007, China Institute of Genetics, Chinese Academy of Sciences, Beijing 100101, China National Hybrid Rice R & D Center, Changsha 410125, China Laboratory of Bioinformatics, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China College of Life Sciences, Peking University, Beijing 100871, China Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 1Q0080, China Digital China Ltd., Beijing 100080, China Institute of Computing Technology, Chinese Academy of Sciences, Beijing 100080, China Medical College, Xi’an Jiaotong University, Xi’an 710061, ChinaThese authors contributed equally to this work.Corresponding author.Corresponden | 2001 | Chinese Science Bulletin2001,46,23: | 6 |
| 6 | Arsenic methylation by an arsenite S-adenosylmethionine methyltransferase from Spirulina platensis显示文摘Arsenic-contaminated water is a serious hazard for human health. Plankton plays a critical role in the fate and toxicity of arsenic in water by accumulation and biotransformation.Spirulina platensis(S. platensis), a typical plankton, is often used as a supplement or feed for pharmacy and aquiculture, and may introduce arsenic into the food chain, resulting in a risk to human health. However, there are few studies about how S. platensis biotransforms arsenic. In this study, we investigated arsenic biotransformation by S. platensis. When exposed to arsenite(As(Ⅲ)), S. platensis accumulated arsenic up to 4.1 mg/kg dry weight.After exposure to As(Ⅲ), arsenate(As(Ⅴ)) was the predominant species making up 64% to86% of the total arsenic. Monomethylarsenate(MMA(Ⅴ)) and dimethylarsenate(DMA(Ⅴ))were also detected. An arsenite S-adenosylmethionine methyltransferase from S. platensis(Sp Ars M) was identified and characterized. Sp Ars M showed low identity with other reported Ars M enzymes. The Escherichia coli AW3110 bearing Spars M gene resulted in As(Ⅲ) methylation and conferring resistance to As(Ⅲ). The in vitro assay showed that Sp Ars M exhibited As(Ⅲ) methylation activity. DMA(Ⅴ) and a small amount of MMA(Ⅴ) were detected in the reaction system within 0.5 hr. A truncated Sp Ars M derivative lacking the last 34 residues still had the ability to methylate As(Ⅲ). The three single mutants of Sp Ars M(C59S, C186 S, and C238S) abolished the capability of As(Ⅲ) methylation, suggesting the three cysteine residues are involved in catalysis. We propose that Sp Ars M is responsible for As methylation and detoxification of As(Ⅲ) and may contribute to As biogeochemistry. | Yuqing Guo Ximei Xue Yu Yan Yongguan Zhu Guidi Yang Jun Ye | 2016 | Journal of Environmental Sciences2016,28,11: | 5 |
| 7 | Photoinduced large polaron transport and dynamics in organic-inorganic hybrid lead halide perovskite with terahertz probes显示文摘Organic-inorganic hybrid metal halide perovskites(MHPs)have attracted tremendous attention for optoelectronic applications.The long photocarrier lifetime and moderate carrier mobility have been proposed as results of the large polaron formation in MHPs.However,it is challenging to measure the effective mass and carrier scattering parameters of the photogenerated large polarons in the ultrafast carrier recombination dynamics.Here,we show,in a one-step spectroscopic method,that the optical-pump and terahertz-electromagnetic probe(OPTP)technique allows us to access the nature of interplay of photoexcited unbound charge carriers and optical phonons in polycrystalline CH_(3)NH_(3)PbI_(3)(MAPbI_(3))of about 10μm grain size.Firstly,we demonstrate a direct spectral evidence of the large polarons in polycrystalline MAPbI_(3).Using the Drude-Smith-Lorentz model along with the Frӧhlich-type electron-phonon(e-ph)coupling,we determine the effective mass and scattering parameters of photogenerated polaronic carriers.We discover that the resulting moderate polaronic carrier mobility is mainly influenced by the enhanced carrier scattering,rather than the polaron mass enhancement.While,the formation of large polarons in MAPbI_(3)polycrystalline grains results in a long charge carrier lifetime at room temperature.Our results provide crucial information about the photo-physics of MAPbI3 and are indispensable for optoelectronic device development with better performance. | Zuanming Jin Yan Peng Yuqing Fang Zhijiang Ye Zhiyuan Fan Zhilin Liu Xichang Bao Heng Gao Wei Ren Jing Wu Guohong Ma Qianli Chen Chao Zhang Alexey VBalakin Alexander PShkurinov Yiming Zhu Songlin Zhuang | 2022 | Light(Science & Applications)2022,11,8: | 4 |
| 8 | LIN28 coordinately promotes nucleolar/ribosomal functions and represses the 2C-like transcriptional program in pluripotent stem cells显示文摘LIN28 is an RNA binding protein with important roles in early embryo development,stem cell differentiation/re-programming,tumorigenesis and metabolism.Previous studies have focused mainly on its role in the cytosol where it interacts with Let-7 microRNA precursors or mRNAs,and few have addressed LIN28's role within the nucleus.Here,we show that LIN28 displays dynamic temporal and spatial expression during murine embryo development.Maternal LIN28 expression drops upon exit from the 2-cell stage,and zygotic LIN28 protein is induced at the forming nucleolus during 4-cell to blas-tocyst stage development,to become dominantly expressed in the cytosol after implantation.In cultured pluripotent stem cells(PSCs),loss of LIN28 led to nucleolar stress and activation of a 2-cell/4-cell-like transcriptional program characterized by the expression of endogenous retrovirus genes.Mechanistically,LIN28 binds to small nucleolar RNAs and rRNA to maintain nucleolar integrity,and its loss leads to nucleolar phase separation defects,ribosomal stress and activation of P53 which in turn binds to and activates 2C transcription factor Dux.LIN28 also resides in a complex containing the nucleolar factor Nucleolin(NCL)and the transcrip-tional repressor TRIM28,and LIN28 loss leads to reduced occupancy of the NCL/TRIM28 complex on the Dux and rDNA loci,and thus de-repressed Dux and reduced rRNA expression.Lin28 knockout cells with nucleolar stress are more likely to assume a slowly cycling,translationally inert and anabolically inactive state,which is a part of previously unappreciated 2C-like transcriptional program.These findings elucidate novel roles for nucleolar LIN28 in PSCs,and a new mechanism linking 2C program and nucleolar functions in PSCs and early embryo development. | Zhen Sun Hua Yu Jing Zhao Tianyu Tan Hongru Pan Yuqing Zhu Lang Chen Cheng Zhang Li Zhang Anhua Lei Yuyan Xu Xianju Bi Xin Huang Bo Gao Longfei Wang Cristina Correia Ming Chen Qiming Sun Yu Feng Li Shen Hao Wu Jianlong Wang Xiaohua Shen George Q.Daley Hu Li Jin Zhang | 2022 | Protein & Cell2022,13,7: | 4 |
| 9 | Crack dynamic propagation properties and arrest mechanism under impact loading显示文摘Crack dynamic propagation and arrest behaviors have received extensive attention over the years.However,there still remain many questions,e.g.under what conditions will a running crack come to arrest?In this paper,drop weight impact(DWI)tests were conducted to investigate crack arrest mechanism using single cleavage triangle(SCT)rock specimens.Green sandstone was selected to prepare the SCT specimens.Dynamic stress intensity factors(DSIFs)were calculated by ABAQUS code,and the critical DSIFs were determined by crack propagation speeds and fracture time measured by crack propagation gauges(CPGs).The test results show that the critical DSIF at propagation decreases with crack propagation speed.Numerical simulation for SCT specimens under different loading waves was performed using AUTODYN code.The reflected compressive wave from the incident and transmitted plates can induce crack arrests during propagation,and the number of arrest times increases with the wave length.In order to eliminate the effect of the incident and transmitted plates,models consisting of only one SCT specimen without incident and transmitted plates were established,and the same trapezoid-shaped loading wave was applied to the SCT specimen.The results show that for the SCT specimen with transmitted boundary(analogous to an infinite plate),the trapezoid-shaped loading wave cannot induce crack arrest anymore.The numerical results can well describe the occurrence of crack arrest in the experiments. | Yuqing Dong Zheming Zhu Li Ren Lei Zhou Peng Ying Meng Wang | 2020 | Journal of Rock Mechanics and Geotechnical Engineering2020,12,6: | 3 |
| 10 | The Effect of Loading Rates on Crack Dynamic Behavior Under Medium-Low Speed Impacts显示文摘Rock structures are often subjected to dynamic loads,such as blasts,impacts and earthquakes,and their loading rates differ largely.To investigate the effect of loading rates on the dynamic behavior of crack propagation,impact tests were conducted on large single-cleavage semicircle compression(LSCSC)specimens using a drop weight impact test system.Five types of rock materials were selected to prepare the LSCSC specimens,and crack propagation gauges were mounted along the crack propagation paths to measure crack initiation time and propagation speeds.Finite element models were established by using ABAQUS code,and the dynamic stress intensity factors(SIFs)were calculated.The curves of dynamic SIFs versus time were obtained,and the initiation toughness was determined by using these curves and the initiation time measured in the impact tests.The results show that loading rate has a significant effect on crack propagation behavior,and both the crack propagation speed and initiation toughness increase with the loading rate,whereas the delayed fracture time decreases with the increase in loading rate. | Peng Ying Zheming Zhu Lei Zhou Meng Wang Yuqing Dong Hao Qiu | 2019 | Acta Mechanica Solida Sinica2019,32,1: | 2 |
| 11 | National guidelines for diagnosis and treatment of thyroid cancer 2022 in China(English version)显示文摘Contents 1. Overview 2. Diagnosis and management 2.1 Screening for high-risk group 2.2 Clinical manifestations 2.2.1 Symptoms 2.2.2 Signs 2.2.3 Invasion and metastasis 2.3 Laboratory examination 2.3.1 Routine examination 2.3.2 Special examination 2.4 Imaging 2.4.1 Ultrasonography 2.4.2 Computed tomography (CT)2.4.3 Magnetic resonance imaging (MRI)2.4.4 Positron emission tomography (PET)-CT。 | 无 Shaoyan Liu Yansong Lin Yiming Zhu Lin Gui Xiaorong Hou Ziren Kong Yuanlin Piao Yuqing Sun Hao Wang Jian Wang Bo Zhang Ye Zhang Kun Zheng | 2022 | Chinese Journal of Cancer Research2022,34,3: | 2 |
| 12 | Comments on National guidelines for diagnosis and treatment of thyroid cancer 2022 in China (English version)显示文摘Thyroid cancer (TC) is the most common endocrine system cancer, of note, the overall survival of TC in China is suboptimal when comparing with the developed countries such as US (84.3%vs.98.3%), posing a great challenge among professionals involved in this field.Standardization of its diagnosis and treatment not only provides the basis for all the care givers to promote the entire level of TC management, but also is helpful in shortening the distance between China and other developed countries. A multidisciplinary team (MDT)should be involved in the comprehensive clinical management of TC, particularly for those advanced or refractory TC, which needs cooperation among members from ultrasonography, radiology, pathology, surgery. | Hao Wang Jian Wang Xiang Wang Yiming Zhu Yuqing Sun Xin Zhang Xiaorong Hou Kun Zheng Shaoyan Liu Yansong Lin | 2022 | Chinese Journal of Cancer Research2022,34,5: | 2 |
| 13 | Control Parameter Optimization of Thermostatically Controlled Loads Using a Modified State-queuing Model显示文摘Thermostatically controlled loads(TCLs)are one of the best candidates to participate in direct load control(DLC).However,little attention is given to the parameter optimization of the TCLs control system due to the complexity of the TCLs’dynamics.In this paper,the parameters of the feedback control system based on the direct compressor control mechanism(DCCM)are optimized using the modified state-queuing(SQ)model,which can provide good characterizaton and greatly simplifies the dynamics of the TCLs.The simulation results verify the effectiveness of the proposed method. | Yuqing Bao Peipei Chen Minqiang Hu Xuemei Zhu | 2020 | CSEE Journal of Power and Energy Systems2020,6,2: | 2 |
| 14 | Special interstitial route can transport nanoparticles to the brain bypassing the blood-brain barrier显示文摘Nowadays,nanoparticles(NPs)are considered to be ideal tools for bioimaging and drug delivery.Although increasing research has focused on NP biodistribution,transportation in the interstitial architecture has been neglected.The entire body is connected by the interstitial architecture,which can provide a long-range and direct pathway for NP biodistribution in a nonvascular system.In this study,we report that 10-nm gold NPs injected directly into the interstitial architecture of the tarsal tunnel of rats(intervaginal space injection(ISI))were delivered to the brain without crossing the blood-brain barrier.Furthermore,NaGdF4 nanoparticles were used to explore the transportation route by magnetic resonance imaging.The results demonstrated that,after ISI,the NaGdF4 nanoparticles were transported through the perivascular interstitial space of the carotid arteries and brain vessels to the brain.This is a special nonvascular transportation route like a stream based on the interstitial architecture that provides an alternative pathway for NP biodistribution. | Nan Hu Xiaoli Shi Qiang Zhang Wentao Liu Yuting Zhu Yuqing Wang Yi Hou Yinglu Ji Yupeng Cao Qian Zeng Zhuo Ao Quanmei Sun Xiaohan Zhou Xiaochun Wu Dong Han | 2019 | Nano Research2019,12,11: | 2 |
| 15 | 奥曲肽持续皮下泵入治疗恶性肠梗阻的临床观察(英文)显示文摘Objective: The aim of the study was to observe the effectiveness of continuously subcutaneous-pumped octreotide infusion in palliative treatment of malignant bowel obstruction (MBO).Methods: Clinical data were retrospectively analyzed in 26 carcinoma patients complicated with MBO,in the Affiliated Hospital of Liaoning University of Traditional Chinese Medicine,China,from March 2007 to April 2009.All 26 carcinoma patients with MBO were divided into two groups: the controlling group (CG,routine therapy,15 patients) and the octreotide group (OG,11 patients).The octreotide group received routine therapy combined with octreotide (0.3 mg/d) by 24 hours continuously subcutaneous octreotide infusion.The changes of curative effectiveness related to symptoms,the times of recovering exsufflation and defecation,the average drain of gastrointestinal drainage tube,the duration of gastrointestinal drainage tube and the rate of extubation,were observed and compared between the two groups.Results: After treatment,remarkable changing rates of MBO related symptoms were 81.8% (9/11) in OG,and 46.7% (7/15) in CG (P < 0.05).The 78% of SG and 30% of CG recovered the exsufflation and defecation,and the mean times they needed were 3.2 d and 5.8 d,respectively (P < 0.05).The durations of gastrointestinal drainage tube of OG and CG were (5 ± 1.2) d and (10 ± 2.3) d,respectively,and the rates of extubation were 54.5% and 20%,respectively.The improvement rate in the octreotide group was better than that in the controlling group and the difference was significant (72.7% and 26.7%,P < 0.05).Conclusion: The administration of octreotide in combination with routine treatment can be very effective in the treatment of MBO.It can relieve the symptoms of MBO effectively and improve the quality of life of the end-stage patients.It has provided one kind of new treating thought and method for treatment of malignant bowel obstruction. | Dongfeng Yin Yin Zhu Yuqing Xing Hong Gao Yuzhen Pan Lin Pan Guangyi Tang Xiangrong Xing Lijiang Zhou | 2011 | The Chinese-German Journal of Clinical Oncology2011,10,1: | 2 |
| 16 | Effects of Magnetic Annealing on Magnetic Properties in Nd_4Fe_(76)Co_3(Hf_(1-x)Ga_x)B_(16) Alloy显示文摘The best linear fit of H_c(T)/M,(T) vs 2k_1(T)/μ_0M s^2(T) infers that H_c is determined by a nucleation process in nanocrystalline two-phase magnet.The condition of the grain shapes is improved after adding Hf and Ga,but the surfaces are deteriorated by some precipitates on the boundary.Taking into account the values of α,N_(eff),the results of TEM,and Moessbauer spectroscopy,the magnetic field heat-treatment not only induces grain refinement but also causes a uniform distribution of the soft and hard phases.It is one recommendable method to improve the condition of the microstructure.Both the remanence and energy product values are increased by 20%— 30%for all ribbons after annealing with magnetic field.The magnetic interaction in Nd_2Fe_(14)B/Fe_3B + αFe based nanocrystalline two-phase magnets is studied using δM plots in this paper.It is found that the exchange coupled interaction is greatly enhanced in the sample annealed with magnetic heat-treatment,specially,Nd_4Fe_(76)Co_3Hf_(0.5)Ga_(0.5)B_(16) which achieves the highest energy product(BH)_(max)=126.4kJ/m^3. | Gao Youhui Zhu Jinghan Weng Yuqing Eon Byung Park Choong Jin Yang | 1999 | Journal of Iron and Steel Research(International)1999,6,1: | 2 |
| 17 | Recent Advancements in Ultrasound Transducer:From Material Strategies to Biomedical Applications显示文摘Ultrasound is extensively studied for biomedical engineering applications.As the core part of the ultrasonic system,the ultrasound transducer plays a significant role.For the purpose of meeting the requirement of precision medicine,the main challenge for the development of ultrasound transducer is to further enhance its performance.In this article,an overview of recent developments in ultrasound transducer technologies that use a variety of material strategies and device designs based on both the piezoelectric and photoacoustic mechanisms is provided.Practical applications are also presented,including ultrasound imaging,ultrasound therapy,particle/cell manipulation,drug delivery,and nerve stimulation.Finally,perspectives and opportunities are also highlighted. | Jiapu Li Yuqing Ma Tao Zhang KKirk Shung Benpeng Zhu | 2022 | Biomedical Engineering Frontiers2022,3,1: | 2 |
| 18 | Hydrologic balance, net primary productivity and water use efficiency of the introduced exotic Eucalyptus grandis × Eucalyptus urophylla plantation in south-western China显示文摘Aims Land cover changes can disrupt water balance and alter the partitioning of precipitation into surface runoff,evapotranspiration and groundwater recharge.The widely planted Eucalyptus trees in south-western China have the potential to bring about hydrologic impacts.Our research aims to elucidate the hydrologic balance characteristics of the introduced exotic Eucalyptus grandis×Eucalyptus urophylla plantation and to assess whether its high productivity results from high water use efficiency(WUE)or large water consumption.Methods A 400-m^(2) experimental plot was established in an E.grandis×E.urophylla plantation in south-western China.Water balance components,including stand transpiration(T_(r)),evapotranspiration(E_(t))and runoff(R)were obtained as follows:T_(r) was estimated based on sap flow measurements,E_(t) was estimated as the average of surface transpiration and evaporation weighted by the fractional green vegetation cover using a modeling approach,and R was collected using the installed metal frame.Net primary productivity(NPP)was obtained from allometric equation and annual diameter at breast height(DBH)increment determination.Important Findings Annual E_(t) and T_(r) were 430±31 and 239±17 mm,respectively.Annual T_(r) accounts for 56±8%of total evapotranspiration on average.WUE(NPP/T_(r))of the E.grandis×E.urophylla was estimated to be 3.3–3.9 mmol·mol^(−1).Based on the comparative analysis of T_(r) and WUE,E.grandis×E.urophylla had a high productivity due to its high WUE without exhibiting prodigal water use.Meteorological factors including vapor pressure deficit and global solar radiation(R_(s))were key factors regulating E_(t) and T_(r) in our research site.Annual surface runoff,E_(t) and canopy interception occupied 7%,27–30%and 16%of total precipitation,while the remaining 46–50%of precipitation was used for sustaining groundwater recharge and altering soil water storage.The higher runoff coefficient(7.1%)indicated the weaker capability of E.grandis×E.urophylla to reserve water resource than natural forests and less disturbed plantations.The planting and protection of understory vegetation may decrease the surface runoff and exert beneficial effects on water conservation capacity of Eucalyptus plantation. | Yanting Hu Ping Zhao Yuqing Huang Liwei Zhu Guangyan Ni Xiuhua Zhao Zhihong Huang | 2019 | Journal of Plant Ecology2019,12,6: | 2 |
| 19 | Biosynthetic labeling with 3-O-propargylcaffeyl alcohol reveals in vivo cell-specific patterned lignification in loquat fruits during development and postharvest storage显示文摘Lignification is a major cell wall modification that often results in the formation of sophisticated subcellular patterns during plant development or in response to environmental stresses.Precise localization of the spatiotemporal deposition of lignin is of great importance for revealing the lignification regulatory mechanism of individual cells.In loquat fruits,lignification typically increases the flesh lignin content and firmness,reducing their edibility and processing quality.However,the precise localization of the spatiotemporal active zones of lignification inside loquat fruit flesh remains poorly understood,and little is known about the contribution of patterned lignification to cell wall structure dynamics and the subsequent fruit-quality deterioration.Here,we performed an emerging bioorthogonal chemistry imaging technique to trace the in vivo patterned lignification dynamics in cells of loquat fruit flesh during development and storage.In developing fruits,lignified cells(LCs)and vascular bundles(VBs)were the zones of active lignification,and ring-like LCs deposited lignin at both the inner wall layer and the outer periphery sides.The domino effect of the generation of LCs was preliminarily visualized.In mature fruits,the newly formed lignin in the flesh of fruits during storage was specifically deposited in the corners and middle lamellae of parenchyma cells surrounding the VBs,resulting in the development of a reticular structure.Based on the findings,distinct spatiotemporal patterned lignification modes for different flesh cells in loquat fruits were proposed.These findings provide loquat lignification dynamics together with spatiotemporal data that can improve our understanding of the lignification process in planta. | Nan Zhu Chenning Zhao Yuqing Wei Chongde Sun Di Wu Kunsong Chen | 2021 | Horticulture Research2021,8,1: | 2 |
| 20 | Dexmedetomidine Inhibits Inflammatory Reaction in Lung Tissues of Septic Rats by Suppressing TLR4/NF- κ B Pathway显示文摘 | Yuqing Wu Yingchun Liu He Huang Yangzi Zhu Yong Zhang Fuzhao Lu Ce Zhou Li Huang Xin Li Chenghua Zhou Celeste C. Finnerty | 2013 | Mediators of Inflammation2013,,: | 2 |