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| 1 | Cold-chain food contamination as the possible origin of COVID-19 resurgence in Beijing显示文摘COVID-19,caused by SARS-CoV-2[1,2],has been contained in China through stringent non-pharmaceutical interventions.Border control and quarantine have effectively prevented the virus from being spread by infected travellers,but the risk of resurgence caused by other routes of introduction and transmission remains unclear,and current strategies to prevent resurgence could be flawed.Since July,SARS-CoV-2 RNA contaminations in frozen food imported from countries with ongoing epidemics have been reported in nine provinces in China[3,4].However,there is no robust evidence of COVID-19 outbreaks initiated by environmentto-human transmission.Here we add to evidence of such transmission by investigating the recent COVID-19 resurgence in Beijing. | Xinghuo Pang Lili Ren Shuangsheng Wu Wentai Ma Jian Yang Lin Di Jie Li Yan Xiao Lu Kang Shichang Du Jing Du Jing Wang Gang Li Shuguang Zhai Lijuan Chen Wenxiong Zhou Shengjie Lai Lei Gao Yang Pan Quanyi Wang Mingkun Li Jianbin Wang Yanyi Huang Jianwei Wang COVID-19 Field Response Group COVID-19 Laboratory Testing Group | 2020 | National Science Review2020,7,12: | 51 |
| 2 | Observation of ocean current response to 1998 Hurricane Georges in the Gulf of Mexico显示文摘The ocean current response to a hurricane on the shelf-break is examined. The study area is the DeSoto Canyon in the northeast Gulf of Mexico, and the event is the passage of 1998 Hurricane Georges with a maximum wind speed of 49 m/s. The data sets used for analy- sis consist of the mooring data taken by the Field Program of the DeSoto Canyon Eddy Intrusion Study, and simultaneous winds ob- served by NOAA (National Oceanic and Atmospheric Administration) Moored Buoy 42040. Time-depth ocean current energy density images derived from the observed data show that the ocean currents respond almost immediately to the hurricane with important differ- ences on and off the shelf. On the shelf, in the shallow water of 100 m, the disturbance penetrates rapidly downward to the bottom and forms two energy peaks, the major peak is located in the mixed layer and the secondary one in the lower layer. The response dissipates quickly after external forcing disappears. Off the shelf, in the deep water, the major disturbance energy seems to be trapped in the mixed layer with a trailing oscillation; although the disturbance signals may still be observed at the depths of 500 and 1 290 m. Verti- cal dispersion analysis reveals that the near-initial wave packet generated off the shelf consists of two modes. One is a barotropic wave mode characterized by a fast decay rate of velocity amplitude of 0.020 s-1, and the other is baroclinic wave mode characterized by a slow decay rate of 0.006 9 s-1. The band-pass-filtering and empirical function techniques are employed to the frequency analysis. The results indicate that all frequencies shift above the local inertial frequency. On the shelf, the average frequency is 1.04f in the mixed layer, close to the diagnosed frequency of the first baroclinic mode, and the average frequency increases to 1.07f in the thermocline. Off the shelf, all frequencies are a little smaller than the diagnosed frequency of the first mode. The average frequency decreases from 1.035f in the mixed layer to 1.02f in the thermocline, implying a trend for the shift in frequency of the oscillations towards f with the depth. | ZHENG Quanan LAI Ronald J HUANG Nortlen E PAN Jiayi LIU W Timothy | 2006 | Acta Oceanologica Sinica2006,25,1: | 20 |
| 3 | Bone marrow-derived mesenchymal stem cell therapy for decompensated liver cirrhosis:A meta-analysis显示文摘AIM:To assess the efficacy and safety of bone marrow-derived mesenchymal stem cell(BM-MSC) in the treatment of decompensated liver cirrhosis.METHODS:The search terms 'bone marrow stem cell' 'chronic liver disease' 'transfusion' and 'injection' were used in the Cochrane Library,Med-Line(Pub-Med) and Embase without any limitations with respect to publication date or language. Journals were also handsearched and experts in the field were contacted. The studies which used BM-MSC in the treatment of any chronic liver disease were included. Comprehensive Review Manager and Meta-Analyst software were used for statistical analysis. Publication bias was evaluated using Begg's test.RESULTS:Out of 78 studies identified,five studies were included in the final analysis.The studies were conducted in China,Iran,Egypt and Brazil.Analysis of pooled data of two controlled studies by Review Manager showed that the mean decline in scores for the model for end-stage liver disease(MELD)was-1.23[95%CI:-2.45-(-0.01)],-1.87[95%CI:-3.16-(-0.58)],-2.01[95%CI:-3.35-(-0.68)]at 2,4 and 24 wk,respectively after transfusion.Meta-analysis of the 5studies showed that the mean improvement in albumin levels was-0.28,2.60,5.28,4.39 g/L at the end of 8,16,24,and 48 wk,respectively,after transfusion.MELD scores,alanine aminotransferase,total bilirubin levels and prothrombin times improved to some extent.BMMSC injections resulted in no serious adverse events or complications.CONCLUSION:BM-MSC infusion in the treatment of decompensated liver cirrhosis improved liver function.At the end of year 1,there were no serious side effects or complications. | Xing-Nan Pan Lian-Qiu Zheng Xiao-Huan Lai | 2014 | World Journal of Gastroenterology2014,20,38: | 17 |
| 4 | Black tea in chemo-prevention of cancer and other human diseases显示文摘Tea is the most popular functional beverage in the world and has been gaining more and more attention for its health beneficial properties.Among common teas,black tea is consumed more than green tea and oolong tea worldwide.Numerous studies have shown the biological activities of black tea and its polyphenols that include anti-oxidant,anti-tumor,anti-inflammation and metabolic regulation.Tea polyphenols such as theaflavins and catechins are considered to be multifunctional compounds that could be effective in the prevention or treatment of various cancers,cardiovascular disease,chronic inflammation,obesity,metabolic syndrome,and neurodegenerative diseases.In this review,we summarized the up-to-date research and underlying molecular mechanisms of black tea and its polyphenols.©2013 Beijing Academy of Food Sciences.Production and hosting by Elsevier B.V.All rights reserved. | Min-Hsiung Pan Ching-Shu Lai Hong Wang Chih-Yu Lo Chi-Tang Ho Shiming Li | 2013 | Food Science and Human Wellness2013,2,1: | 16 |
| 5 | Piglets cloned from induced pluripotent stem cells显示文摘 | Nana Fan Jijun Chen Zhouchun Shang Hongwei Dou Guangzhen Ji Qingjian Zou Lu Wu Lixiazi He Fang Wang Kai Liu Na Liu Jianyong Han Qi Zhou Dengke Pan Dongshan Yang Bentian Zhao Zhen Ouyang Zhaoming Liu Yu Zhao Lin Lin Chongming Zhong Quanlei Wang Shouqi Wang Ying Xu Jing Luan Yu Liang Zhenzhen Yang Jing Li Chunxia Lu Gabor Vajta Ziyi Li Hongsheng Ouyang Huayan Wang Yong Wang Yang Yang Zhonghua Liu Hong Wei Zhidong Luan Miguel A Esteban Hongkui Deng Huanming Yang Duanqing Pei Ning Li Gang Pei Lin Liu Yutao Du Lei Xiao Liangxue Lai | 2013 | Cell Research2013,23,1: | 12 |
| 6 | Klebsiella pneumoniae invasive liver abscess syndrome with purulent meningitis and septic shock: A case from China's Mainland显示文摘@Yun Qian$Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University!Hangzhou 310016, Zhejiang Province, China$Institute of Gastroenterology, Zhejiang University!Hangzhou 310016, Zhejiang Province, China@Chi-Chun Wong$Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, the Chinese University of Hong Kong!Hong Kong, China@San-Chuan Lai$Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University!Hangzhou 310016, Zhejiang Province, China$Institute of Gastroenterology, Zhejiang University!Hangzhou 310016, Zhejiang Province, China@Zheng-Hua Lin$Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University!Hangzhou 310016, Zhejiang Province, China$Institute of Gastroenterology, Zhejiang University!Hangzhou 310016, Zhejiang Province, China@Wei-Liang Zheng$Department of Radiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University!Hangzhou 310016, Zhejiang Province, China@Hui Zhao$Emergency Department, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University!Hangzhou 310016, Zhejiang Province, China@Kong-Han Pan$Department of Critical Care Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University!Hangzhou 310016, Zhejiang Province, China@Shu-Jie Chen$Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University!Hangzhou 310016, Zhejiang Province, China$Institute of Gastroenterology, Zhejiang University!Hangzhou 310016, Zhejiang Province, China@Jian-Min Si$Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University!Hangzhou 310016, Zhejiang Province, China$Institute of Gastroenterology, Zhejiang University!Hangzhou 310016, Zhejiang Province, | Yun Qian Chi-Chun Wong San-Chuan Lai Zheng-Hua Lin Wei-Liang Zheng Hui Zhao Kong-Han Pan Shu-Jie Chen Jian-Min Si | 2016 | World Journal of Gastroenterology2016,22,9: | 12 |
| 7 | Up-regulation of mitochondrial chaperone TRAP1 in ulcerative colitis associated colorectal cancer显示文摘AIM:To characterize tumor necrosis factor receptorassociated protein 1(TRAP1)expression in the progression of ulcerative colitis(UC)-associated colorectal cancer.METHODS:Chronic UC is an inflammatory bowel disease that predisposes to colorectal cancer.Immunohistochemical analysis was used to evaluate TRAP1expression on tissue microarrays containing colonic tissues from 42 UC progressors(patients with cancer or dysplasia)and 38 non-progressors(dysplasia/cancer free patients).Statistical analyses of the TRAP1immunohistochemistry staining were performed using Graph Pad Prism.Differences in the TRAP1 level between non-progressors and progressors were tested for statistical significance using the Mann-Whitney test.Receiver operating characteristic curve method was used to quantify marker performance in distinguishing diseased cases from controls.RESULTS:TRAP1 was up-regulated in the colon tissues from UC progressors,but not in the colon tissues from UC non-progressors.Moreover,up-regulation of TRAP1 preceded the neoplastic changes:it was present in both the dysplastic and non-dysplastic tissues of UC progressors.When TRAP1 staining in rectal tissue was used as a diagnostic marker,it could distinguish progressors from non-progressors with 59%sensitivity and 80%specificity.Our study further showed that the increase of TRAP1 expression positively correlated with the degree of inflammation in the colorectal cancer tissues,which could be related to the increased oxidation present in the colonic mucosa from UC progressors.We then investigated the cellular proteome changes underlying oxidative stress,and found that oxidative stress could induce up-regulation of TRAP1 along with several other negative modulators of apoptosis.CONCLUSION:These results suggest that oxidative stress in long standing UC could lead to the increase of cytoprotective protein TRAP1,which in turn could promote cancer progression by preventing or protecting the oxidative damaged epithelial cells from undergoing apoptosis.TRAP1 could be a potential diagnostic marker for UC associated colorectal cancer. | Ru Chen Sheng Pan Keith Lai Lisa A Lai David A Crispin Mary P Bronner Teresa A Brentnall | 2014 | World Journal of Gastroenterology2014,20,45: | 9 |
| 8 | BLT1 in dendritic cells promotes Th1/Th17 differentiation and its deficiency ameliorates TNBS-induced colitis显示文摘Leukotriene B4(LTB4)synthesis is enhanced in the colonic mucosa in patients with inflammatory bowel disease(IBD).BLT1,a highaffinity receptor for LTB4,exhibits no effect on the progression of dextran sodium sulfate(DSS)-induced colitis,which mostly relies on innate immunity.Here,we reported that BLT1 regulates trinitrobenzene sulfonic acid(TNBS)-induced colitis,which reflects CD4+T-cell-dependent adaptive immune mechanisms of IBD.We found that BLT1 signaling enhanced the progression of colitis through controlling the production of proinflammatory cytokines by dendritic cells(DCs)and modulating the differentiation of Th1 and Th17.BLT1−/−mice displayed an alleviated severity of TNBS-induced colitis with reduced body weight loss and infiltrating cells in the lamina propria.BLT1 deficiency in DCs led to reduced production of proinflammatory cytokines,including IL-6,TNF-α,and IL-12,and these results were further confirmed via treatment with a BLT1 antagonist.The impaired cytokine production by BLT1−/−DCs subsequently led to reduced Th1 and Th17 differentiation both in vitro and in vivo.We further performed a conditional DC reconstitution experiment to assess whether BLT1 in DCs plays a major role in regulating the pathogenesis of TNBS-induced colitis,and the results indicate that BLT1 deficiency in DCs also significantly reduces disease severity.The mechanistic study demonstrated that BLT1-regulated proinflammatory cytokine production through the Gαiβγsubunit-phospholipase Cβ(PLCβ)-PKC pathway.Notably,we found that treatment with the BLT1 antagonist also reduced the production of proinflammatory cytokines by human peripheral blood DCs.Our findings reveal the critical role of BLT1 in regulating adaptive immunity and TNBS-induced colitis,which further supports BLT1 as a potential drug target for adaptive immunity-mediated IBD. | Jinfeng Zhou Weiming Lai Wanjie Yang Juping Pan Hu Shen Yingying Cai Cuixia Yang Ningjia Ma Yue Zhang Ru Zhang Xin Xie Zhongjun Dong Yuan Gao Changsheng Du | 2018 | Cellular & Molecular Immunology2018,15,12: | 9 |
| 9 | Melatonin ameliorates microvessel abnormalities in the cerebral cortex and hippocampus in a rat model of Alzheimer’s disease显示文摘Melatonin can attenuate cardiac microvascular ischemia/reperfusion injury,but it remains unclear whether melatonin can also ameliorate cerebral microvascular abnormalities.Rat models of Alzheimer’s disease were established by six intracerebroventricular injections of amyloidbeta 1–42,administered once every other day.Melatonin(30 mg/kg)was intraperitoneally administered for 13 successive days,with the first dose given 24 hours prior to the first administration of amyloid-beta 1–42.Melatonin ameliorated learning and memory impairments in the Morris water maze test,improved the morphology of microvessels in the cerebral cortex and hippocampus,increased microvessel density,alleviated pathological injuries of cerebral neurons,and decreased the expression of vascular endothelial growth factor and vascular endothelial growth factor receptors 1 and 2.These findings suggest that melatonin can improve microvessel abnormalities in the cerebral cortex and hippocampus by lowering the expression of vascular endothelial growth factor and its receptors,thereby improving the cognitive function of patients with Alzheimer’s disease.This study was approved by the Animal Care and Use Committee of Jinzhou Medical University,China(approval No.2019015)on December 6,2018. | Pan Wang Hai-Juan Sui Xiao-Jia Li Li-Na Bai Jing Bi Hong Lai | 2021 | Neural Regeneration Research2021,16,4: | 8 |
| 10 | Process mineralogy characteristics of acid leaching residue produced in low-temperature roasting-acid leaching pretreatment process of refractory gold concentrates显示文摘To provide a theoretical basis for a suitable process to extract gold from refractory gold concentrates, process mineralogy on the acid leaching residue of gold calcine was studied by chemical composition, X-ray diffraction, scanning electron microscopy-energy spectrum, and mineral dissociation analysis. The results showed that the acid leaching residue contained Au 68.22 g/t, Ag 92.71 g/t, Fe 0.44%, As 0.10%, and S 0.55%. Gold and silver minerals existed as native gold, argentite, and proustite. Quartz, the main gangue mineral, accounted for 78.33 wt/%. The dissociation degree analysis showed that the proportions of monomer and exposed gold in acid leaching residue were 96.66 wt%. The cyanidation results showed that the cyanide gold leaching rate of acid leaching residues was close to 100 wt%. However, the maximum cyanide gold leaching rate of gold calcine was only 85.31 wt%. This suggests that acid leaching can increase the gold dissolution rate in the cyanide process. | Shuang-hua Zhang Ya-jie Zheng Pan Cao Chao-hui Li Shen-zhi Lai Xing-jun Wang | 2018 | International Journal of Minerals,Metallurgy and Materials2018,25,10: | 8 |
| 11 | Ultrasound-Assisted Transient Liquid Phase Bonding of Magnesium Alloy Using Brass Interlayer in Air显示文摘The microstructure evolution and oxide film behavior in ultrasound-assisted transient liquid phase(U-TLP) bonding of Mg alloy were investigated by applying different ultrasonic time at 460?C with brass interlayer in air. The results indicated that with increasing ultrasonic time, brass interlayer disappeared gradually and the Mg-Cu-Zn eutectic compounds were formed. The eutectic compounds in the joint decreased as the ultrasonic time increased further. The oxide removal process was divided into four steps. Continuous oxide film at the interface was partially fractured by ultrasonic vibration,and then suspended into liquid by undermining eutectic reaction. After that, the suspended oxide film was broken into small oxide fragments by ultrasonic cavitation effect, which was finally squeezed out of the joint by ultrasonic squeeze action. In addition, the mechanical properties of the joints were investigated. The maximum shear strength of the joint reached 105 MPa, which was 100% of base metal. | Zhiwei Lai Ruishan Xie Chuan Pan Xiaoguang Chen Lei Liu Wenxian Wang Guisheng Zou | 2017 | Journal of Materials Science & Technology2017,33,6: | 7 |
| 12 | Inhibition of citrus flavonoids on 12-O-tetradecanoylphorbol 13-acetate-induced skin inflammation and tumorigenesis in mice显示文摘The inhibitory effects of a formulated product from citrus peel extract,Gold Lotion(GL),on 12-O-tetradecanoylphorbol 13-acetate(TPA)-induced expression of inducible nitric oxide synthase(iNOS)and cyclooxygenase-2(COX-2)in mouse skin was reported in this study.It is found that in the TPA-induced skin inflammation model,the topical application of GL effectively inhibited the transcriptional activation of iNOS and its mRNA and protein in mouse skin.It is also discovered that GL significantly inhibited TPA-induced mouse skin inflammation by decreasing inflammatory gene parameters.Furthermore,GL dramatically inhibited 7,12-dimethylbenez[a]anthracene(DMBA)/TPA-induced skin tumor formation and reduced tumor incidence,tumor weight and tumor multiplicity of papillomas at 20 weeks.In essence,these in vivo data have revealed that GL is an effective anti-tumor agent that functions by down-regulating the protein levels of COX-2,ornithine decarboxylase(ODC),and vascular endothelial growth factor(VEGF)in mouse skin,suggesting that GL is a novel functional natural product capable of preventing inflammation-associated tumorigenesis.©2012 Production and hosting by Elsevier B.V.on behalf of Beijing Academy of Food Sciences. | Min-Hsiung Pan Shiming Li Ching-Shu Lai Yutaka Miyauchi Michiko Suzawa Chi-Tang Ho | 2012 | Food Science and Human Wellness2012,1,1: | 7 |
| 13 | Molecular epidemiology demonstrates that imported and local strains circulated during the 2014 dengue outbreak in Guangzhou, China显示文摘The dengue virus(DENV) is a vital global public health issue. The 2014 dengue epidemic in Guangzhou, China, caused approximately 40,000 cases of infection and five deaths. We carried out a comprehensive investigation aimed at identifying the transmission sources in this dengue epidemic. To analyze the phylogenetics of the 2014 dengue strains, the envelope(E) gene sequences from 17 viral strains isolated from 168 dengue patient serum samples were sequenced and a phylogenetic tree was reconstructed. All 17 strains were serotype Ⅰ strains, including 8genotype Ⅰ and 9 genotype V strains. Additionally, 6 genotype Ⅰ strains that were probably introduced to China from Thailand before 2009 were widely transmitted in the 2013 and 2014 epidemics, and they continued to circulate until 2015, with one affinis strain being found in Singapore. The other 2 genotype Ⅰ strains were introduced from the Malaya Peninsula in 2014. The transmission source of the 9 genotype Ⅴ strains was from Malaysia in 2014. DENVs of different serotypes and genotypes co-circulated in the 2014 dengue outbreak in Guangzhou. Moreover, not only had DENV been imported to Guangzhou, but it had also been gradually exported, as the viruses exhibited an enzootic transmission cycle in Guangzhou. | Geng Li Pan Pan Qiuyan He Xiujuan Kong Kailang Wu Wei Zhang Yuntao Liu Huiting Huang Jianbo Liu Zhongde Zhang De Wu Xiaoping Lai Xiaohong Liu Jianguo Wu | 2017 | Virologica Sinica2017,32,1: | 7 |
| 14 | Yap1 plays a protective role in suppressing free fatty acid-induced apoptosis and promoting beta-cell survival显示文摘哺乳动物的胰腺的房间通过胰岛素的生产和分泌物在开发和葡萄糖动态平衡起一个枢轴的作用。在房间数字的功能的失败或减少导致类型 2 糖尿病(T2D ) 。尽管有 -cells, 的生理的重要性,房间的生存能力经常主要由于它适应他们的变化微型环境的差的能力被质问。否定地影响房间生存能力的因素之一是象 palmitate 那样的免费的丰满的酸(船边交货) 的高集中。在这个工作,我们证明当房间与 palmitate 被对待时,那联系是的蛋白质(Yap1 ) 被激活。我们用啮齿类动物 insulinoma 房间线的 loss-of-function 和 gain-of-function 分析表明没有调整他们的增长, Yap1 在房间压制导致 palmitate 的 apoptosis。我们也发现在 palmitate 处理之上, F 肌动朊的重新整理调停 Yap1 激活。Yap1 目标基因之一的 Palmitate 处理增加表示,结缔组织生长因素(CTGF ) 。我们有 CTGF 的 gain-of-function 分析建议 CTGF 可以是在对导致船边交货的 apoptosis 的保护的机制的 Yap1 的下游的因素。 | Yaoting Deng Yurika Matsui Wenfei Pan Qiu Li Zhi-Chun Lai | 2016 | Protein & Cell2016,7,5: | 7 |
| 15 | Posthepatectomy HBV Reactivation in Hepatitis B–Related Hepatocellular Carcinoma Influences Postoperative Survival in Patients With Preoperative Low HBV-DNA Levels显示文摘 | Gang Huang Eric C. H. Lai Wan Yee Lau Wei-ping Zhou Feng Shen Ze-ya Pan Si-yuan Fu Meng-chao Wu | 2013 | Annals of Surgery2013,,3: | 5 |
| 16 | The treatment of black-odorous water using tower bipolar electro-flocculation including the removal of phosphorus,turbidity,sulfion,and oxygen enrichment显示文摘The large amount of municipal wastewater discharged into urban rivers sometimes exceeds the rivers’self-purification capacity leading to black-odorous polluted water.Electro-flocculation has emerged as a powerful remediation technology.Electro-flocculation in a bubble column tower with a bipolar electrode(BPE)was tested in an attempt to overcome the high resistance and weak gas-floatation observed with a monopolar electrode(MPE)in treating such water.The BPE reactor tested had a Ti/Ta2O_(5)-IrO_(2)anode and a graphite cathode with an iron or aluminum bipolar electrode suspended between them.It was tested for its ability to reduce turbidity,phosphate and sulphion and to increase the concentration of dissolved oxygen.The inclusion of the bipolar electrode was found to distinctly improved the system’s conductivity.The system’s electro-flocculation and electrical floatation removed turbidity,phosphate and sulphion completely,and the dissolved oxygen level improved from 0.29 to 6.28 mg/L.An aluminum bipolar electrode performed better than an iron one.Changes in the structure of the microbial community confirmed a significant improvement in water quality. | Huan He Qinjin Yu Chaochao Lai Chen Zhang Muhan Liu Bin Huang Hongping Pu Xuejun Pan | 2021 | Frontiers of Environmental Science & Engineering2021,15,2: | 5 |
| 17 | Metasurface-enabled on-chip multiplexed diffractive neural networks in the visible显示文摘Replacing electrons with photons is a compelling route toward high-speed,massively parallel,and low-power artificial intelligence computing.Recently,diffractive networks composed of phase surfaces were trained to perform machine learning tasks through linear optical transformations.However,the existing architectures often comprise bulky components and,most critically,they cannot mimic the human brain for multitasking.Here,we demonstrate a multi-skilled diffractive neural network based on a metasurface device,which can perform on-chip multi-channel sensing and multitasking in the visible.The polarization multiplexing scheme of the subwavelength nanostructures is applied to construct a multi-channel classifier framework for simultaneous recognition of digital and fashionable items.The areal density of the artificial neurons can reach up to 6.25×10^(6)mm^(-2) multiplied by the number of channels.The metasurface is integrated with the mature complementary metal-oxide semiconductor imaging sensor,providing a chip-scale architecture to process information directly at physical layers for energy-efficient and ultra-fast image processing in machine vision,autonomous driving,and precision medicine. | Xuhao Luo Yueqiang Hu Xiangnian Ou Xin Li Jiajie Lai Na Liu Xinbin Cheng Anlian Pan Huigao Duan | 2022 | Light(Science & Applications)2022,11,7: | 4 |
| 18 | Crystalline behaviors and phase transition during the manufacture of fine denier PA6 fibers显示文摘Recently we have successfully produced fine denier PA6 fibers by using additives containing lanthanide compounds.Meanwhile,crystallization and phase transition of PA6 fibers during spinning and drawing processes were investigated.During the spinning process,β phase crystal could be obtained in as-spun PA6 fibers which were produced with relatively high melt draw ratio,while γ phase crystal predominated when the melt draw ratio was relatively low.β phase crystal,whose behaviors are similar with those of γ phase by FT-IR and XRD characterization,could be transformed to α form easily when PA6 fibers are immersed in boiling water.However,γ phase crystal of PA6 remains unchanged in boiling water.Thus,β and γ phase crystals of PA6 can be differentiated by the crystalline behaviors of PA6 fibers after treatment in boiling water.Further experiments demonstrate that the β phase can also be produced during a drawing process where a phase transformation from γ to α occurs.In other words,β phase may act as an intermediate state during the phase transformation. | ZHANG ChengFeng LIU YuHai LIU ShaoXuan LI HuiZhen HUANG Kun PAN QingHua HUA XiaoHui HAO ChaoWei MA QingFang LV ChangYou LI WeiHong YANG ZhanLan ZHAO Ying WANG DuJin LAI GuoQiao JIANG JianXiong XU YiZhuang WU JinGuang | 2009 | Science China Chemistry2009,52,11: | 4 |
| 19 | Strengthening and ductilization of laminate dual-phase steels with high martensite content显示文摘The steels with excellent strength and ductility are expected to be achieved by tailoring the microstructural features.In this work,laminate dual-phase(DP)steels with high martensite content(laminate HMDP steels)were produced by a combination of warm rolling and intercritical annealing.Influence of rolling strain and annealing temperature on the microstructural evolution and mechanical properties of laminate HMDP steels were systematically studied.The strength of HMDP steels was significantly improved to~1.6 GPa associated with a high uniform elongation of 7%,as long as the laminate structure is maintained.The strengthening and ductilizing mechanisms of laminate HMDP steels are discussed based on the influence of laminate structure and the high martensite content,which promote the development of internal stresses and can be correlated to the Bauschinger effect as measured by the cyclic loadingunloading-reloading experiments.Detailed transmission electron microscopy(TEM)observation was applied to characterize the dislocation structure in the deformed ferrite. | Bo Gao Rong Hu Zhiyi Pan Xuefei Chen Yi Liu Lirong Xiao Yang Cao Yusheng Li Qingquan Lai Hao Zhou | 2021 | Journal of Materials Science & Technology2021,,6: | 4 |
| 20 | Au nanocomposite enhanced electret film for triboelectric nanogenerator显示文摘 | Bao Dong Chen Wei Tang Chi Zhang Liang Xu Lai Pan Zhu Lei Jing Yang Chuan He Jian Chen Long Liu Tao Zhou Zhong Lin Wang | 2018 | Nano Research2018,11,6: | 4 |