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| 1 | 2018 Chinese Pediatric Cardiology Society(CPCS) guideline for diagnosis and treatment of syncope in children and adolescents显示文摘Syncope belongs to the transient loss of consciousness(TLOC), characterized by a rapid onset, short duration, and spontaneous complete recovery. It is common in children and adolescents, accounting for 1% to 2% of emergency department visits.Recurrent syncope can seriously affect children's physical and mental health, learning ability and quality of life and sometimes cardiac syncope even poses a risk of sudden death. The present guideline for the diagnosis and treatment of syncope in children and adolescents was developed for guiding a better clinical management of pediatric syncope. Based on the globally recent development and the evidence-based data in China, 2018 Chinese Pediatric Cardiology Society(CPCS) guideline for diagnosis and treatment of syncope in children and adolescents was jointly prepared by the Pediatric Cardiology Society, Chinese Pediatric Society, Chinese Medical Association(CMA)/Committee on Pediatric Syncope, Pediatricians Branch, Chinese Medical Doctor Association(CMDA)/Committee on Pediatric Cardiology, Chinese College of Cardiovascular Physicians, Chinese Medical Doctor Association(CMDA)/Pediatric Cardiology Society, Beijing Pediatric Society, Beijing Medical Association(BMA). The present guideline includes the underlying diseases of syncope in children and adolescents, the diagnostic procedures, methodology and clinical significance of standing test and headup tilt test, the clinical diagnosis vasovagal syncope, postural orthostatic tachycardia syndrome, orthostatic hypotension and orthostatic hypertension, and the treatment of syncope as well as follow-up. | Cheng Wang Yaqi Li Ying Liao Hong Tian Min Huang Xiangyu Dong Lin Shi Jinghui Sun Hongfang Jin Junbao Du Jindou An Jie Chen Mingwu Chen Qi Chen Sun Chen Yonghong Chen Zhi Chen Adolphus Kai-tung Chau Junbao Du Zhongdong Du Junkai Duan Hongyu Duan Xiangyu Dong Lin Feng Lijun Fu Fangqi Gong Yonghao Gui Ling Han Zhenhui Han Bing He Zhixu He Xiufen Hu Yimin Hua Guoying Huang Min Huang Ping Huang Yujuan Huang Hongfang Jin Mei Jin Bo Li Fen Li Tao Li Xiaohui Li Xiaoyan Liu Yan Li Haitao Lv Tiewei Lv Zipu Li Luyi Ma Silin Pan Yusheng Pang Hua Peng Yuming Qin Jie Shen Lin Shi Kun Sun Jinghui Sun Hong Tian Jie Tian Cheng Wang Hong Wang Lei Wang Jinju Wang Wendi Wang Yuli Wang Rongzhou Wu Tianhe Xia Yanyan Xiao Chunhong Xie Yanlin Xing Zhenyu Xiong Baoyuan Xu Yi Xu Hui Yan Shiwei Yang Qijian Yi Xia Yu Xianyi Yu Yue Yuan Hongyan Zhang Huili Zhang Li Zhang Qingyou Zhang Xi Zhang Yanmin Zhang Zhiwei Zhang Cuifen Zhao Bin Zhou Hua Zhu | 2018 | Science Bulletin2018，63，23： | 54 |
| 2 | The role of charged multivesicular body protein 5 in programmed cell death in leukemic cells显示文摘人(CHMP5 ) 现代人的控告的 multivesicular 身体蛋白质 5 是 multivesicular 身体的一个成员,它用作 anti-apoptotic 蛋白质并且被认为参予引起白血病。在这研究,一条短发卡的基于 RNA 的 RNA 干扰途径被用来在白血病的房间线 U937 禁止 CHMP5 的表示。在 CHMP5 被禁止以后,抗体 microarray 和西方的污点分析被用来在规划房间死亡(PCD ) 学习变化小径。PCD 能被分类进三种类型:apoptosis,坏死,和 autophagy。结果显示出那 caspase 3 在 CHMP5 缺乏的 U937 房间被激活,显示 apoptotic 小径被激活,尽管既不内在外来的 apoptotic 小径也没被激活。我们的结果也证明 Granzyme B/Perforin apoptotic 小径被 CHMP5 silencing 激活。坏死被 caspase 独立的刽子手激活。在这研究,我们证明导致 apoptosis 调停蛋白质的坏死的 PCD 小径在 CHMP5 抑制以后被激活。autophagic PCD 没发生在 CHMP5 缺乏的 U937 房间,这被发现。在结论,在 CHMP5 抑制,两条 Granzyme B/Perforin apoptotic 小径和导致 apoptosis 以后,调停因素的坏死的小径被激活,当 autophagic 小径没被激活时。 | Hairong Wang Jia Liu Feilong Wang Miao Chen Zhenyu Xiao Renrong OuYang Aihua Fei Yanlin Shen Shuming Pan | 2013 | Acta Biochimica et Biophysica Sinica2013，45，5： | 3 |
| 3 | Small molecule SMU-CX24 targeting toll-like receptor 3 counteracts inflammation:A novel approach to atherosclerosis therapy显示文摘Toll-like receptor 3(TLR3),as an important pattern recognition receptor(PRR),dominates the innate and adaptive immunity regulating many acute and chronic inflammatory diseases.Atherosclerosis is proved as an inflammatory disease,and inflammatory events involved in the entire process of initiation and deterioration.However,the contribution of TLR3 to atherosclerosis remains unclear.Herein,we identified the clinical relevance of TLR3 upregulation and disease processes in human atherosclerosis.Besides,activation of TLR3 also directly led to significant expression of atherogenic chemokines and adhesion molecules.Conversely,silencing TLR3 inhibited the uptake of oxLDL by macrophages and significantly reduced foam cell formation.Given the aberrance in TLR3 functions on atherosclerosis progression,we hypothesized that TLR3 could serve as novel target for clinical atherosclerosis therapy.Therefore,we developed the novel ellipticine derivative SMU-CX24,which specifically inhibited TLR3(IC_(50)=18.87±2.21 nmol/L).In vivo,atherosclerotic burden was alleviated in Western diet fed ApoE^(−/−)mice in response to SMU-CX24 treatment,accompanying notable reductions in TLR3 expression and inflammation infiltration within atherosclerotic lesion.Thus,for the first time,we revealed that pharmacological downregulation of TLR3 with specific inhibitor regenerated inflammatory environment to counteract atherosclerosis progression,thereby proposing a new strategy and probe for atherosclerosis therapy. | Xiaohong Cen Baoqu Wang Yuqing Liang Yanlin Chen Yu Xiao Shaohua Du Kutty Selva Nandakumar Hang Yin Shuwen Liu Kui Cheng | 2022 | Acta Pharmaceutica Sinica B2022，12，9： | 2 |
| 4 | Recent Progress in Atmospheric Chemistry Research in China: Establishing a Theoretical Framework for the “Air Pollution Complex”显示文摘Atmospheric chemistry research has been growing rapidly in China in the last 25 years since the concept of the“air pollution complex”was first proposed by Professor Xiaoyan TANG in 1997.For papers published in 2021 on air pollution(only papers included in the Web of Science Core Collection database were considered),more than 24000 papers were authored or co-authored by scientists working in China.In this paper,we review a limited number of representative and significant studies on atmospheric chemistry in China in the last few years,including studies on(1)sources and emission inventories,(2)atmospheric chemical processes,(3)interactions of air pollution with meteorology,weather and climate,(4)interactions between the biosphere and atmosphere,and(5)data assimilation.The intention was not to provide a complete review of all progress made in the last few years,but rather to serve as a starting point for learning more about atmospheric chemistry research in China.The advances reviewed in this paper have enabled a theoretical framework for the air pollution complex to be established,provided robust scientific support to highly successful air pollution control policies in China,and created great opportunities in education,training,and career development for many graduate students and young scientists.This paper further highlights that developing and low-income countries that are heavily affected by air pollution can benefit from these research advances,whilst at the same time acknowledging that many challenges and opportunities still remain in atmospheric chemistry research in China,to hopefully be addressed over the next few decades. | Tong ZHU Mingjin TANG Meng GAO Xinhui BI Junji CAO Huizheng CHE Jianmin CHEN Aijun DING Pingqing FU Jian GAO Yang GAO Maofa GE Xinlei GE Zhiwei HAN Hong HE Ru-Jin HUANG Xin HUANG Hong LIAO Cheng LIU Huan LIU Jianguo LIU Shaw Chen LIU Keding LU Qingxin MA Wei NIE Min SHAO Yu SONG Yele SUN Xiao TANG Tao WANG Tijian WANG Weigang WANG Xuemei WANG Zifa WANG Yan YIN Qiang ZHANG Weijun ZHANG Yanlin ZHANG Yunhong ZHANG Yu ZHAO Mei ZHENG Bin ZHU Jiang ZHU | 2023 | Advances in Atmospheric Sciences2023，40，8： | 2 |
| 5 | GMDH-Based Outlier Detection Model in Classification Problems显示文摘In many practical classification problems,datasets would have a portion of outliers,which could greatly affect the performance of the constructed models.In order to address this issue,we apply the group method of data handin neural network in outlier detection.This study builds a GMDH-based outlier detectio model.This model first implements feature selection in the training set L using GMDH neural network.Then a new training set L can be obtained by mapping the selected key feature subset.Next,a linear regression model can be constructed in the set L by ordinary least squares estimation.Further,it eliminates a sample from the set L randomly every time,and then rebuilds a linear regression model.Finally,outlier detection is realized by calculating Cook’s distance for each sample.Four different customer classification datasets are used to conduct experiments.Results show that GOD model can effectively eliminate outliers,and compared with the five existing outlier detection models,it generally performs significantly better.This indicates that eliminating outliers can effectively enhance classification accuracy of the trained classification model. | XIE Ling JIA Yanlin XIAO Jin GU Xin HUANG Jing | 2020 | Journal of Systems Science & Complexity2020，33，5： | 1 |
| 6 | Therapeutic effects of EGF-modified curcumin/ chitosan nano-spray on wound healing显示文摘Dermal injury,including trauma,surgical incisions,and burns,remain the most prevalent socio-economical health care issue in the clinic.Nanomedicine represents a reliable administration strategy that can promote the healing of skin lesions,but the lack of effective drug delivery methods can limit its effectiveness.In this study,we developed a novel nano-drug delivery system to treat skin defects through spraying.We prepared curcumin-loaded chitosan nanoparticles modified with epidermal growth factor(EGF)to develop an aqueous EGF-modified spray(EGF@CCN)for the treatment of dermal wounds.In vitro assays showed that the EGF@CCN displayed low cytotoxicity,and that curcumin was continuously and slowly released from the EGF@CCN.In vivo efficacy on wound healing was then evaluated using full-thickness dermal defect models in Wistar rats,showing that the EGF@CCN had significant advantages in promoting wound healing.On day 12 post-operation,skin defects in the rats of the EGF@CCN group were almost completely restored.These effects were related to the activity of curcumin and EGF on skin healing,and the high compatibility of the nano formulation.We therefore conclude that the prepared nano-scaled EGF@CCN spray represents a promising strategy for the treatment of dermal wounds. | Yue Li QingQing Leng XianLun Pang Huan Shi YanLin Liu SuSu Xiao Ling Zhao Ping Zhou ShaoZhi Fu | 2021 | Regenerative Biomaterials2021，8，2： | 1 |
| 7 | Research of Climatic Zoning Index System of Red Cartridge Kiwifruit in Guizhou显示文摘The climate data of 84 meteorological stations in Guizhou from 1981 to 2010 was used,including the statistical data of daily precipitation,temperature,sunshine hours,evaporation,frost free period and so on. Using the equations of light and heat coefficient,light and heat index,latitude and temperature index,active accumulated temperature,effective accumulated temperature,aridity index,and arid-wet index,the red cartridge kiwifruit zoning index of Guizhou was analyzed and studied. The results showed that the zoning index system for the climatic characteristics of Guizhou mountainous area must be established in order to realize the variety regionalization of red cartridge kiwifruit in Guizhou mountainous area,and ten climatic factors were taken as climatic zoning indexes of red cartridge kiwifruit planting,including active accumulated temperature,effective accumulated temperature,annual average temperature,average temperature of July,light and heat coefficient,light and heat index,latitude and temperature index,frost free period,aridity index and arid-wet index. These indicators were giving a comprehensive evaluation for climate suitability conditions of red cartridge kiwifruit planting,and providing the scientific and reasonable basis for the promotion planting of red cartridge kiwifruit in mountain area of Guizhou. | Chi Zaixiang Xiao Yanlin Li Guiqiong Liu Lijuan Pan Xuyan Gong Xueqin | 2017 | Meteorological and Environmental Research2017，8，6： | 1 |
| 8 | Necessary and sufficient conditions for nonoscillatory solutions of first-order nonlinear neutral difference equations显示文摘 | Tang X H Xiao Yanlin | | 0，，： | 1 |
| 9 | Regulating droplet impact symmetry by surface engineering显示文摘Droplet impact on solid surfaces is essential both in nature and industry.Precisely regulating the dynamic behavior of droplet impact is of great significance for energy harvesting,anti-icing,inkjet printing,pesticide spraying,and many other fields.Various rebounding behaviors(deposition,rebounding,rotation,instability control,and so on)and rebounding intrinsic parameters(such as contact time)after droplets impacting on solid surfaces can be regulated by surface engineering.This paper reviews the advances in regulating droplet impact behavior from the perspective of symmetry by modifying solid surfaces from the following aspects:chemical modification and physical structure regulation,in which the symmetry is discussed from mirror symmetry and rotational symmetry.Firstly,the symmetry of the droplet impact dynamics and its influencing factors are introduced.Then the modulation of droplet impact symmetry,using homogeneous and heterogeneous chemically modified solid surfaces,is summarized.The following presents the influence of physical structures,from micro to macro scale compared to the droplet size,on the droplet impact symmetry.Finally,the future challenges and opportunities of the droplet impact behavior regulation are discussed。 | Zhipeng Zhao Huizeng Li Quan Liu An Li Luanluan Xue Renxuan Yuan Xinye Yu Rujun Li Xiao Deng Yanlin Song | 2023 | Droplet2023，2，2： | 1 |
| 10 | Analysis on Agrometeorological Conditions of Production of Winter Wheat and Rape Crops in Western Guizhou in 2019显示文摘Whole growth period of winter wheat and rape crops in western Guizhou in 2019 was from October of 2019 to early May of 2020.Using daily temperature,rainfall and sunshine hours of three national meteorological observatories(Shuicheng,Panzhou and Liuzhi)of western Guizhou,the impact of meteorological conditions on growth and development of winter wheat and rape crops was analyzed.The results showed that average temperature in whole growth period of winter wheat and rape crops in western Guizhou in 2019 was between 11.1 and 13.0℃,which was 0.4-1.6℃higher than that in the same period of common year.Rainfall was between 276.0 and 309.0 mm.When compared with that in the same period of common year,rainfall was 7%-22%less in other regions except in Panzhou(1%more).Sunshine hours was between 689.2 and 1091.2 h.When compared with that in the same period of common year,sunshine hours was 14%-26%more in other regions except in Shuicheng(equal).In growth period of winter wheat and rape crops,there was good heat condition and sufficient sunshine,and rainfall was normal and slightly less,but it was mostly sunny and rainy alternating,which was favorable for the growth of crop root.During growth period of crops,there was lighter meteorological disaster.It was clear that meteorological conditions were conducive to the growth and development of winter wheat and rape crops in 2019. | Lijuan LIU Zaixiang CHI Yan PENG Zijiang YANG Yanlin XIAO Ruyong LONG | 2020 | Meteorological and Environmental Research2020，11，4： | 0 |
| 11 | An improved evaluation of the neutron background in the PandaX-Ⅱ experiment显示文摘In dark matter direct detection experiments,neutron is a serious source of background,which can mimic the dark matter-nucleus scattering signals.In this paper,we present an improved evaluation of the neutron background in the PandaX-II dark matter experiment by a novel approach.Instead of fully relying on the Monte Carlo simulation,the overall neutron background is determined from the neutron-induced high energy signals in the data.In addition,the probability of producing a dark-matter-like background per neutron is evaluated with a complete Monte Carlo generator,where the correlated emission of neutron(s)andγ(s)in the(α,n)reactions and spontaneous fissions is taken into consideration.With this method,the neutron backgrounds in the Run 9(26-ton-day)and Run 10(28-ton-day)data sets of PandaX-II are estimated to be(0.66±0.24)and(0.47±0.25)events,respectively. | QiuHong Wang Abdusalam Abdukerim Wei Chen Xun Chen YunHua Chen XiangYi Cui YingJie Fan DeQing Fang ChangBo Fu LiSheng Geng Karl Giboni Franco Giuliani LinHui Gu XuYuan Guo Ke Han ChangDa He Di Huang Yan Huang YanLin Huang Zhou Huang Peng Ji XiangDong Ji YongLin Ju YiHui Lai Kun Liang HuaXuan Liu JiangLai Liu WenBo Ma YuGang Ma YaJun Mao Yue Meng Parinya Namwongsa KaiXiang Ni JinHua Ning XuYang Ning XiangXiang Ren ChangSong Shang Lin Si AnDi Tan AnQing Wang HongWei Wang Meng Wang SiGuang Wang XiuLi Wang Zhou Wang MengMeng Wu ShiYong Wu JingKai Xia MengJiao Xiao PengWei Xie BinBin Yan JiJun Yang Yong Yang ChunXu Yu Jumin Yuan Dan Zhang HongGuang Zhang Tao Zhang Li Zhao QiBin Zheng JiFang Zhou Ning Zhou XiaoPeng Zhou | 2020 | Science China(Physics,Mechanics & Astronomy)2020，63，3： | 0 |
| 12 | Constraining self-interacting dark matter with the full dataset of PandaX-II显示文摘Self-interacting dark matter(SIDM)is a leading candidate proposed to solve discrepancies between predictions of the prevailing cold dark matter theory and observations of galaxies.Many SIDM models predict the existence of a light force carrier that mediates strong dark matter self-interactions.If the mediator couples to the standard model particles,it could produce characteristic signals in dark matter direct detection experiments.We report searches for signals of SIDM models with a light mediator using the full dataset of the PandaX-II experiment,basing on a total exposure of 132 tonne-days.No significant excess over background is found,and our likelihood analysis leads to a strong upper limit on the dark matter-nucleon coupling strength.We further combine the PandaX-II constraints and those from observations of the light element abundances in the early universe,and show that direct detection and cosmological probes can provide complementary constraints on dark matter models with a light mediator. | Jijun Yang Abdusalam Abdukerim Wei Chen Xun Chen Yunhua Chen Chen Cheng Xiangyi Cui Yingjie Fan Deqing Fang Changbo Fu Mengting Fu Lisheng Geng Karl Giboni Linhui Gu Xuyuan Guo Ke Han Changda He Shengming He Di Huang Yan Huang Ran Huo Yanlin Huang Zhou Huang Xiangdong Ji Yonglin Ju Shuaijie Li Qing Lin Huaxuan Liu Jianglai Liu Xiaoying Lu Wenbo Ma Yugang Ma Yajun Mao Yue Meng Nasir Shaheed Kaixiang Ni Jinhua Ning Xuyang Ning Xiangxiang Ren Changsong Shang Guofang Shen Lin Si Andi Tan Anqing Wang Hongwei Wang Meng Wang QiuHong Wang Siguang Wang Wei Wang Xiuli Wang Zhou Wang Mengmeng Wu Shiyong Wu Weihao Wu Jingkai Xia Mengjiao Xiao Xiang Xiao Pengwei Xie Binbin Yan Yong Yang Chunxu Yu Hai-Bo Yu Jumin Yuan Ying Yuan Xinning Zeng Dan Zhang Tao Zhang Li Zhao Qibin Zheng Jifang Zhou Ning Zhou Xiaopeng Zhou | 2021 | Science China(Physics,Mechanics & Astronomy)2021，64，11： | 0 |
| 13 | Multitask Learning with Multiscale Residual Attention for Brain Tumor Segmentation and Classification显示文摘Automatic segmentation and classification of brain tumors are of great importance to clinical treatment.However,they are challenging due to the varied and small morphology of the tumors.In this paper,we propose a multitask multiscale residual attention network(MMRAN)to simultaneously solve the problem of accurately segmenting and classifying brain tumors.The proposed MMRAN is based on U-Net,and a parallel branch is added at the end of the encoder as the classification network.First,we propose a novel multiscale residual attention module(MRAM)that can aggregate contextual features and combine channel attention and spatial attention better and add it to the shared parameter layer of MMRAN.Second,we propose a method of dynamic weight training that can improve model performance while minimizing the need for multiple experiments to determine the optimal weights for each task.Finally,prior knowledge of brain tumors is added to the postprocessing of segmented images to further improve the segmentation accuracy.We evaluated MMRAN on a brain tumor data set containing meningioma,glioma,and pituitary tumors.In terms of segmentation performance,our method achieves Dice,Hausdorff distance(HD),mean intersection over union(MIoU),and mean pixel accuracy(MPA)values of 80.03%,6.649 mm,84.38%,and 89.41%,respectively.In terms of classification performance,our method achieves accuracy,recall,precision,and F1-score of 89.87%,90.44%,88.56%,and 89.49%,respectively.Compared with other networks,MMRAN performs better in segmentation and classification,which significantly aids medical professionals in brain tumor management.The code and data set are available at https://github.com/linkenfaqiu/MMRAN. | Gaoxiang Li Xiao Hui Wenjing Li Yanlin Luo | 2023 | Machine Intelligence Research2023，20，6： | 0 |
| 14 | Determination of Double Beta Decay Half-Life of 136Xe with the PandaX-4T Natural Xenon Detector显示文摘Precise measurement of two-neutrino double beta decay(DBD)half-life is an important step for the searches of Majorana neutrinos with neutrinoless double beta decay.We report the measurement of DBD half-life of 136xe using the Pandax-4T dual-phase Time Projection Chamber(TPC)with 3.7-tonne natural xenon and the first 94.9-day physics data release. | Lin Si Zhaokan Cheng Abdusalam Abdukerim Zihao Bo Wei Chen Xun Chen Yunhua Chen Chen Cheng Yunshan Cheng Xiangyi Cui Yingjie Fan Deqing Fang Changbo Fu Mengting Fu Lisheng Geng Karl Giboni Linhui Gu Xuyuan Guo Ke Han Changda He Jinrong He Di Huang Yanlin Huang Zhou Huang Ruquan Hou Xiangdong Ji Yonglin Ju Chenxiang Li Jiafu Li Mingchuan Li Shu Li Shuaijie Li Qing Lin Jianglai Liu Xiaoying Lu Lingyin Luo Yunyang Luo Wenbo Ma Yugang Ma Yujun Mao Yue Meng Nasir Shaheed Xiaofeng Shang Xuyang Ning Ningchun Qi Zhicheng Qian Xiangxiang Ren Changsong Shang Guofang Shen Wenliang Sun Andi Tan Yi Tao Anqing Wang Meng Wang Qiuhong Wang Shaobo Wang Siguang Wang Wei Wang Xiuli Wang Zhou Wang Yuehuan Wei Mengmeng Wu Weihao Wu Jingkai Xia Mengjiao Xiao Xiang Xiao Pengwei Xie Binbin Yan Xiyu Yan Yong Yang Chunxu Yu Jumin Yuan Ying Yuan Zhe Yuan Dan Zhang Minzhen Zhang Peng Zhang Shibo Zhang Shu Zhang Tao Zhang Li Zhao Qibin Zheng Jifang Zhou Ning Zhou Xiaopeng Zhou Yong Zhou | 2023 | Research2023，，2： | 0 |
| 15 | Regulating nitrogen vacancies within graphitic carbon nitride to boost photocatalytic hydrogen peroxide production显示文摘Introducing nitrogen vacancies is an effective method to improve the catalytic performance of g-C_(3)N_(4)-based photocatalysts,whereas understanding how nitrogen vacancies types affect the catalytic performance remains unclear.Herein,two different types of nitrogen vacancies were successfully introduced into g-C_(3)N_(4)by pyrolysis of melamine under argon and ammonia atmosphere with subsequent HNO3 oxidation.The pyrolysis atmosphere is found to have a significant influence on the introduced nitrogen vacancies type,where tertiary nitrogen groups(N_(3)C)and sp2-hybridized nitrogen atoms(N_(2)C)were the preferred sites for the formation of nitrogen vacancies under ammonia and argon pyrolysis,respectively.Moreover,nitrogen vacancies from N3C are experimentally and theoretically demonstrated to facilitate the narrowed band gap and the improved oxygen absorption capability.As expected,the optimal catalyst exhibits high H_(2)O_(2)yield of 451.8µM,which is 3.8 times higher than the pristine g-C_(3)N_(4)(119.0µM)after 4 h and good stability after10 photocatalytic runs. | Yanlin Zhu Xuetao Liu Heng Liu Guangling He Jiamin Xiao Haijiao Xie Yanyan Sun Lei Han | 2022 | SusMat2022，2，5： | 0 |
| 16 | Tunable Fluid-Type Metasurface for Wide-Angle and Multifrequency Water-Air Acoustic Transmission显示文摘Efficient acoustic communication across the water-air interface remains a great challenge owing to the extreme acoustic impedance mismatch.Few present acoustic metamaterials can be constructed on the free air-water interface for enhancing the acoustic transmission because of the interface instability.Previous strategies overcoming this difficulty were limited in practical usage,as well as the wide-angle and multifrequency acoustic transmission.Here,we report a simple and practical way to obtain the wide-angle and multifrequency water-air acoustic transmission with a tunable fluid-type acoustic metasurface(FAM).The FAM has a transmission enhancement of acoustic energy over 200 times,with a thickness less than the wavelength in water by three orders of magnitude.The FAM can work at an almost arbitrary water-to-air incident angle,and the operating frequencies can be flexibly adjusted.Multifrequency transmissions can be obtained with multilayer FAMs.In experiments,the FAM is demonstrated to be stable enough for practical applications and has the transmission enhancement of over 20 dB for wide frequencies.The transmission enhancement of music signal across the water-air interface was performed to demonstrate the applications in acoustic communications.The FAM will benefit various applications in hydroacoustics and oceanography. | Zhandong Huang Shengdong Zhao Yiyuan Zhang Zheren Cai Zheng Li Junfeng Xiao Meng Su Qiuquan Guo Chuanzeng Zhang Yaozong Pan Xiaobing Cai Yanlin Song Jun Yang | 2022 | Research2022，，1： | 0 |
| 17 | Regulation effects of water and nitrogen on yield,water,and nitrogen use efficiency of wolfberry显示文摘Wolfberry(Lycium barbarum L.)is important for health care and ecological protection.However,it faces problems of low productivity and resource utilization during planting.Exploring reasonable models for water and nitrogen management is important for solving these problems.Based on field trials in 2021 and 2022,this study analyzed the effects of controlling soil water and nitrogen application levels on wolfberry height,stem diameter,crown width,yield,and water(WUE)and nitrogen use efficiency(NUE).The upper and lower limits of soil water were controlled by the percentage of soil water content to field water capacity(θ_(f)),and four water levels,i.e.,adequate irrigation(W0,75%-85%θ_(f)),mild water deficit(W1,65%-75%θ_(f)),moderate water deficit(W2,55%-65%θ_(f)),and severe water deficit(W3,45%-55%θ_(f))were used,and three nitrogen application levels,i.e.,no nitrogen(N0,0 kg/hm^(2)),low nitrogen(N1,150 kg/hm^(2)),medium nitrogen(N2,300 kg/hm^(2)),and high nitrogen(N3,450 kg/hm^(2))were implied.The results showed that irrigation and nitrogen application significantly affected plant height,stem diameter,and crown width of wolfberry at different growth stages(P<0.01),and their maximum values were observed in W1N2,W0N2,and W1N3 treatments.Dry weight per plant and yield of wolfberry first increased and then decreased with increasing nitrogen application under the same water treatment.Dry weight per hundred grains and dry weight percentage increased with increasing nitrogen application under W0 treatment.However,under other water treatments,the values first increased and then decreased with increasing nitrogen application.Yield and its component of wolfberry first increased and then decreased as water deficit increased under the same nitrogen treatment.Irrigation water use efficiency(IWUE,8.46 kg/(hm^(2)·mm)),WUE(6.83 kg/(hm^(2)·mm)),partial factor productivity of nitrogen(PFPN,2.56 kg/kg),and NUE(14.29 kg/kg)reached their highest values in W2N2,W1N2,W1N2,and W1N1 treatments.Results of principal component analysis(PCA)showed that yield,WUE,and NUE were better in W1N2 treatment,making it a suitable water and nitrogen management mode for the irrigation area of the Yellow River in the Gansu Province,China and similar planting areas. | GAO Yalin QI Guangping MA Yanlin YIN Minhua WANG Jinghai WANG Chen TIAN Rongrong XIAO Feng LU Qiang WANG Jianjun | 2024 | Journal of Arid Land2024，16，1： | 0 |
| 18 | β-decay study of neutron-rich nucleus ^(34)Al显示文摘The'island of inversion'has been known for over a quarter century,since Warburton et al.[1]proposed that nuclei with intruder ground states would constitute a 3×3 square with Z=10-12,N=20-22 in 1990.Uncovering the underlying inversion mechanism and exploring the scope of the island have attracted significant theoretical and experimental efforts in the following years.Now it is well known that the reduction of N=20 shell gap,which is likely caused by the | Rui Han XiangQing Li WeiGuang Jiang ZhiHuan Li Hui Hua ShuangQuan Zhang CenXi Yuan DongXing Jiang YanLin Ye Jing Li ZongHao Li FuRong Xu QiBo Chen Jie Meng JianSong Wang Chuan Xu YeLei Sun ChunGuang Wang HongYi Wu ChenYang Niu ChenGuang Li Chao He Wei Jiang PengJie Li HongLiang Zang Jun Feng SiDong Chen Qiang Liu XiaoChi Chen HuShan Xu ZhengGuo Hu YanYun Yang Peng Ma JunBing Ma ShiLun Jin Zhen Bai MeiRong Huang Yuan Jie Zhou WeiHu Ma Yong Li XiaoHong Zhou YuHu Zhang GuoQing Xiao WenLong Zhan | 2017 | Science China(Physics,Mechanics & Astronomy)2017，60，4： | 0 |
| 19 | Tunable Fluid-Type Metasurface for Wide-Angle and Multifrequency Water-Air Acoustic Transmission显示文摘Efficient acoustic communication across the water-air interface remains a great challenge owing to the extreme acoustic impedance mismatch.Few present acoustic metamaterials can be constructed on the free air-water interface for enhancing the acoustic transmission because of the interface instability.Previous strategies overcoming this difficulty were limited in practical usage,as well as the wide-angle and multifrequency acoustic transmission.Here,we report a simple and practical way to obtain the wide-angle and multifrequency water-air acoustic transmission with a tunable fluid-type acoustic metasurface(FAM).The FAM has a transmission enhancement of acoustic energy over 200 times,with a thickness less than the wavelength in water by three orders of magnitude.The FAM can work at an almost arbitrary water-to-air incident angle,and the operating frequencies can be flexibly adjusted.Multifrequency transmissions can be obtained with multilayer FAMs.In experiments,the FAM is demonstrated to be stable enough for practical applications and has the transmission enhancement of over 20 dB for wide frequencies.The transmission enhancement of music signal across the water-air interface was performed to demonstrate the applications in acoustic communications.The FAM will benefit various applications in hydroacoustics and oceanography. | Zhandong Huang Shengdong Zhao Yiyuan Zhang Zheren Cai Zheng Li Junfeng Xiao Meng Su Qiuquan Guo Chuanzeng Zhang Yaozong Pan Xiaobing Cai Yanlin Song Jun Yang | 2021 | Research2021，，1： | 0 |
| 20 | Leaching Stability of Simulated Waste Forms for Immobilizing An^(3+) by Gd_2Zr_2O_7 with Nd^(3+)显示文摘In order to investigate the anti-leaching capability of pyrochlore Gd2Zr2O7 immobilized An3+, trivalent neodymium was used as the simulacrums for radioactive wastes with trivalence, Gd2-xNdxZr2O7(0.0x 2.0) series samples were successfully synthesized by high temperature solid reaction and using Gd2O3, Zr O2 powders as starting materials. The experiments of long-term chemical stability were conducted in synthetic seawater at 40 and 70 ℃. The XRD diffractive data and extraction ratio of as-received samples were collected with the help of X-ray diffraction(XRD) instrument and inductively coupled plasma mass spectrometry(ICPMass). The results indicate that the phases of as-received compounds keep the single phase of pyrochlore. The extraction ratio of Gd3+, Zr4+ and Nd3+ in waste forms is increasing with the increase of immersion time in synthetic seawater. The extraction ratio of waste forms at 70 ℃ is higher than at 40 ℃. The highest extraction ratio of Gd3+, Zr4+ and Nd3+ after 42 days is near 0.025 8, 0.003 8 and 0.045 2 μg·m L-1, respectively. | 卢喜瑞 CHEN Mengjun DONG Faqin WANG Xiaoli WU Yanlin XIAO Zhengxue | 2014 | Journal of Wuhan University of Technology(Materials Science)2014，29，5： | 0 |
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