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| 1 | Development of a Drilling and Coring Test-bed for Lunar Subsurface Exploration and Preliminary Experiments显示文摘Drill sampling has been widely employed as an effective way to acquire deep samples in extraterrestrial exploration. A novel sampling method, namely, flexible-tube coring, was adopted for the Chang'e mission to acquire drilling cores without damaging stratification information. Since the extraterrestrial environment is uncertain and different from the terrestrial environment, automated drill sampling missions are at risk of failure. The principles of drilling and coring for the lunar subsurface should be fully tested and verified on earth before launch. This paper proposes a test-bed for conducting the aforementioned experiments on earth. The test-bed comprises a rotary-percussive drilling mechanism, penetrating mechanism, drilling medium container, and signal acquisition and control system. For granular soil, coring experiments indicate that the sampling method has a high coring rate greater than 80%. For hard rock, drilling experiments indicate that the percussive frequency greatly affects the drilling efficiency. A multi-layered simulant composed of granular soil and hard rock is built to test the adaptability of drilling and coring. To tackle complex drilling media, an intelligent drilling strategy based on online recognition is proposed to improve the adaptability of the sampling drill. The primary features of this research are the proposal of a scheme for drilling and coring a test-bed for validation on earth and the execution of drilling experiments in complex media. | SHI Xiaomeng DENG Zongquan QUAN Qiquan TANG Dewei HOU Xuyan JIANG Shengyuan | 2014 | Chinese Journal of Mechanical Engineering2014，27，4： | 10 |
| 2 | Injections of ginkgo in the treatment of cerebral infarction: a systematic review and network Meta-analysis显示文摘OBJECTIVE: To assess the clinical effectiveness and safety of injections of ginkgo(GI) combined with Western Medicine(WM) for cerebral infarction(CI).METHODS: Randomized controlled trials(RCTs) of CI treated by GI were searched in China National Knowledge Infrastructure Database, Wanfang, China Science and Technology Journal Database, Web of Science, Cochrane library, Embase, Pub Med and Chinese Biomedical Literature Database, with the publication data no later than April, 2016. The Cochrane risk of bias method was used to evaluate the methodological quality of the RCTs. The data were analyzed by Review Manager 5.3, Stata 13.0,and Win BUGS 14 software.RESULTS: Totally 37 RCTs involving 4330 patientswere included. By direct comparison, the results of GI group were significantly superior to the routine WM group in the total effective rates [OR = 3.61,95% CI(2.93, 4.44), P < 0.0001], the neural function defect score(NFDS) [MD =-4.39, 95% CI(-5.47,-3.32), P < 0.0001]. Network Meta-analysis(NMA)results showed that, between 5 GIs in efficacy, the difference comparing ginaton injections(Gb E) to ginkgo-dipyidamolum injections(GD) [OR = 1.74,95% CI(0.73, 3.65)], shuxuening injections(SXN)[OR = 1.06, 95% CI(0.609, 1.697)] or ginkgolides injections(GK) [OR = 4.711, 95% CI(1.178, 13.21)]reach statistical significance; the difference comparing GD to GK reach statistical significance [OR =2.791, 95% CI(0.866, 6.908)]; the difference comparing SXN to GK reach statistical significance[OR = 4.537, 95% CI(1.203, 12.41)]. Besides, there was no difference between 4 GIs in NFDS. Probability ranking result showed a great possibility for GK [Surface under the Cumulative Ranking curve(SUCRA) = 80.3%] in improving the total effective rates, which were followed by GD(SUCRA =73.34%), SXN(SUCRA = 46.59%), Gb E(SUCRA =45.46%), floium ginkgo extract and tertram ethypyrazine sodium chloride injections(FT)(SUCRA = 35.64%). However, GK(SUCRA = 80.3%) or Gb E(SUCRA = 69.4%) was better than other GIs in reducing NFDS.GK + WM is the best treatment measures to reduce NFDS in cerebral infarction,which were followed by SXN + WM(SUCRA =51.6%), GD + WM(SUCRA = 48.1%).CONCLUSION: GIs was more effectiveness on CI than the routine Western Medicine. But based on the limitations of the study, more high-quality randomized controlled trials will be necessary. | Tan Di Wu Jiarui Liu Shi Zhang Dan Cui Yingying Zhang Xiaomeng Zhang Bing | 2018 | Journal of Traditional Chinese Medicine2018，38，1： | 7 |
| 3 | Novel application of bergapten and quercetin with anti-bacterial,osteogenesis-potentiating,and anti-inflammation tri-effects显示文摘The bacteria-mediated inflammatory conditions adversely affect the osseointegration process of endosseous implants,which can even lead to implant malfunction or failure.Local drug delivery has been designed to exert anti-inflammatory and antibacterial activities,but whether this strategy has an effect on the compromised osseointegration under inflammation has rarely been studied.The present study focused on the osteoinductive efficacy of two known phytoestrogens[bergapten(BP)and quercetin(QE)]on implant sites under multiple bacteria-infected conditions in situ.Furthermore,the gene expression profiles of rat bone mesenchymal stem cells(rBMSCs)treated with BP and QE in the presence of Porphyromonas gingivalis-derived lipopolysaccharide were identified.The results showed that both drugs,especially QE,had significant potentiating effects on promoting osteogenic differentiation of rBMSCs,resisting multiple pathogens,and reducing inflammatory activity.Meanwhile,RNA sequencing analysis highlighted the enriched gene ontology terms and the differentially expressed genes(Vps25,Il1r2,Csf3,Efemp1,and Ccl20)that might play essential roles in regulating the above tri-effects,which provided the basis for the drug delivery system to be used as a novel therapeutic strategy for integrating peri-implant health.Overall,our study confirmed that QE appeared to outperform BP in osteogenesis and bacterial killing but not in anti-inflammation.Moreover,both drugs possess favorable tri-effects and can serve as the pivotal agents for the drug delivery system to boost osseointegration at inflammatory implant sites. | Jianxu Wei Xiaomeng Zhang Yuan Li Xinxin Ding Yi Zhang Xue Jiang Hongchang Lai Junyu Shi | 2021 | Acta Biochimica et Biophysica Sinica2021，53，6： | 4 |
| 4 | Multi-state autonomous drilling for lunar exploration显示文摘Due to the lack of information of subsurface lunar regolith stratification which varies along depth, the drilling device may encounter lunar soil and lunar rock randomly in the drilling process. To meet the load safety requirements of unmanned sampling mission under limited orbital resources, the control strategy of autonomous drilling should adapt to the indeterminable lunar environments. Based on the analysis of two types of typical drilling media(i.e., lunar soil and lunar rock), this paper proposes a multi-state control strategy for autonomous lunar drilling. To represent the working circumstances in the lunar subsurface and reduce the complexity of the control algorithm, lunar drilling process was categorized into three drilling states: the interface detection, initiation of drilling parameters for recognition and drilling medium recognition. Support vector machine(SVM) and continuous wavelet transform were employed for the online recognition of drilling media and interface, respectively. Finite state machine was utilized to control the transition among different drilling states. To verify the effectiveness of the multi-state control strategy, drilling experiments were implemented with multi-layered drilling media constructed by lunar soil simulant and lunar rock simulant. The results reveal that the multi-state control method is capable of detecting drilling state variation and adjusting drilling parameters timely under vibration interferences.The multi-state control method provides a feasible reference for the control of extraterrestrial autonomous drilling. | Chen Chongbin Quan Qiquan Shi Xiaomeng Deng Zongquan Tang Dewei Jiang Shengyuan | 2016 | Chinese Journal of Aeronautics2016，29，5： | 3 |
| 5 | Meiotic nuclear divisions 1(MND1)fuels cell cycle progression by activating a KLF6/E2F1 positive feedback loop in lung adenocarcinoma显示文摘Background:Considering the increase in the proportion of lung adenocarcinoma(LUAD)cases among all lung cancers and its considerable contribution to cancer-related deaths worldwide,we sought to identify novel oncogenes to provide potential targets and facilitate a better understanding of the malignant progression of LUAD.Methods:The results from the screening of transcriptome and survival analyses according to the integrated Gene Expression Omnibus(GEO)datasets and The Cancer Genome Atlas(TCGA)data were combined,and a promising risk biomarker called meiotic nuclear divisions 1(MND1)was selectively acquired.Cell viability assays and subcutaneous xenograftmodelswere used to validate the oncogenic role ofMND1 in LUADcell proliferation and tumor growth.Aseries of assays,including mass spectrometry,co-immunoprecipitation(Co-IP),and chromatin immunoprecipitation(ChIP),were performed to explore the underlying mechanism.Results:MND1 up-regulation was identified to be an independent risk factor for overall survival in LUAD patients evaluated by both tissue microarray staining and third party data analysis.In vivo and in vitro assays showed that MND1 promoted LUAD cell proliferation by regulating cell cycle.The results of the Co-IP,ChIP and dual-luciferase reporter assays validated that MND1 competitively bound to tumor suppressor Kruppel-like factor 6(KLF6),and thereby protecting E2F transcription factor 1(E2F1)from KLF6-induced transcriptional repression.Luciferase reporter and ChIP assays found that E2F1 activated MND1 transcription by binding to its promoter in a feedback manner.Conclusions:MND1,KLF6,and E2F1 form a positive feedback loop to regulate cell cycle and confer DDP resistance in LUAD.MND1 is crucial for malignant progression and may be a potential therapeutic target in LUAD patients. | Quanli Zhang Run Shi Yongkang Bai Lijuan Meng Jingwen Hu Hongyu Zhu Tongyan Liu Xiaomeng De Siwei Wang Jie Wang Lin Xu Guoren Zhou Rong Yin | 2021 | Cancer Communications2021，41，6： | 2 |
| 6 | Recent advances on rare earths in solid lithium ion conductors显示文摘Solid lithium-ion-conducting material is the key component in the fabrication of next-gene ration all solid state lithium ion batteries(LIBs)which would exhibit superior safety and performance compared with the currently widely used ones that resort to essentially inflammable and volatile organic solvents.To date,great efforts have been made in developing solid conductors with high lithium ion conductivity,such as polymers and inorganic materials.Rare earths play a very important role in this area and have attracted extensive interest since the recent decades for their unique properties in the realm of solidstate inorganic lithium-ion-conducting electrolyte materials.In this introduction,we focus on the role of rare earths in solid conductors for lithium ion,especially in a few most studied systems such as perovskites,garnets,silicates,borohydride and the recently reported halides in which rare earths act as a key framing component.Besides,the effect of rare earths as dopants is also discussed in some recently studied systems.Valence,coordination,and size are the most important factors that influence the crystal structure and property of these lithium ion conductors.The aim of this review is to highlight the great potentials of these unique elements of rare earths,and to help improve the performance of existing materials and explore new applications in the development of new LIBs with high performances. | Qian Zhang Zhiqing Gao Xiaomeng Shi Chao Zhang Kang Liu Jun Zhang Liang Zhou Chunjie Ma Yaping Du | 2021 | Journal of Rare Earths2021，39，1： | 2 |
| 7 | Demonstration of epitaxial growth of strain-relaxed GaN films on graphene/SiC substrates for long wavelength light-emitting diodes显示文摘Strain modulation is crucial for heteroepitaxy such as GaN on foreign substrates.Here,the epitaxy of strain-relaxed GaN films on graphene/SiC substrates by metal-organic chemical vapor deposition is demonstrated.Graphene was directly prepared on SiC substrates by thermal decomposition.Its pre-treatment with nitrogen-plasma can introduce C–N dangling bonds,which provides nucleation sites for subsequent epitaxial growth.The scanning transmission electron microscopy measurements confirm that part of graphene surface was etched by nitrogen-plasma.We study the growth behavior on different areas of graphene surface after pre-treatment,and propose a growth model to explain the epitaxial growth mechanism of GaN films on graphene.Significantly,graphene is found to be effective to reduce the biaxial stress in GaN films and the strain relaxation improves indium-atom incorporation in InGaN/GaN multiple quantum wells(MQWs)active region,which results in the obvious red-shift of light-emitting wavelength of InGaN/GaN MQWs.This work opens up a new way for the fabrication of GaN-based long wavelength light-emitting diodes. | Ye Yu Tao Wang Xiufang Chen Lidong Zhang Yang Wang Yunfei Niu Jiaqi Yu Haotian Ma Xiaomeng Li Fang Liu Gaoqiang Deng Zhifeng Shi Baolin Zhang Xinqiang Wang Yuantao Zhang | 2021 | Light(Science & Applications)2021，10，7： | 2 |
| 8 | The BAH domain of BAHD1 is a histone H3K27me3 reader显示文摘 | Dan Zhao (1) (2) Xiaojie Zhang (2) Haipeng Guan (2) Xiaozhe Xiong (2) Xiaomeng Shi (3) Haiteng Deng (3) Haitao Li (2) (4) | 2016 | Protein & Cell2016，7，3： | 2 |
| 9 | Anti-infection effects of heparin on SARS-CoV-2 in a diabetic mouse model显示文摘Severe acute respiratory syndrome coronavirus 2(SARSCo V-2)infection can result in more severe syndromes and poorer outcomes in patients with diabetes and obesity.However,the precise mechanisms responsible for the combined impact of coronavirus disease 2019(COVID-19)and diabetes have not yet been elucidated,and effective treatment options for SARS-Co V-2-infected diabetic patients remain limited.To investigate the disease pathogenesis,K18-h ACE2 transgenic(h ACE2^(Tg))mice with a leptin receptor deficiency(h ACE2-Lepr^(-/-))and high-fat diet(h ACE2-HFD)background were generated.The two mouse models were intranasally infected with a 5×10^(5) median tissue culture infectious dose(TCID_(50))of SARSCo V-2,with serum and lung tissue samples collected at 3days post-infection.The h ACE2-Lepr^(-/-)mice were then administered a combination of low-molecular-weight heparin(LMWH)(1 mg/kg or 5 mg/kg)and insulin via subcutaneous injection prior to intranasal infection with1×10^(4) TCID_(50)of SARS-Co V-2.Daily drug administration continued until the euthanasia of the mice.Analyses of viral RNA loads,histopathological changes in lung tissue,and inflammation factors were conducted.Results demonstrated similar SARS-Co V-2 susceptibility in h ACE2^(Tg)mice under both lean(chow diet)and obese(HFD)conditions.However,compared to the h ACE2-Lepr^(+/+)mice,h ACE2-Lepr^(-/-)mice exhibited more severe lung injury,enhanced expression of inflammatory cytokines and hypoxia-inducible factor-1α(HIF-1α),and increased apoptosis.Moreover,combined LMWH and insulin treatment effectively reduced disease progression and severity,attenuated lung pathological changes,and mitigated inflammatory responses.In conclusion,preexisting diabetes can lead to more severe lung damage upon SARS-Co V-2 infection,and LMWH may be a valuable therapeutic approach for managing COVID-19patients with diabetes. | Zhongyun Zhang Ning Zhang Xuancheng Lu Min Zhou Xiaoxiang Yan Weiqiong Gu Jingru Yang Qin Zhang Cheng Zhang Yuhuan Gong Mingjun Jia Xiaoyu Zhang Peng Ning Mei Liu Xiaoyan Li Xiaomeng Shi Wenjun Liu George FGao Guang Ning Jiqiu Wang Yuhai Bi | 2023 | Zoological Research2023，44，6： | 1 |
| 10 | Experimental study on concrete spalling in prestressed slabs subjected to fire显示文摘 | ZHENG Wenzhong HOU Xiaomeng SHI Dongsheng | 2010 | Fire Safety Journal2010，45，5： | 1 |
| 11 | A new route to fabricate SiB4 modified C/SiC composites 显示文摘 | Shi Fengming Yin Xiaowei Fan Xiaomeng | 2010 | Journal of the European Ceramic Society2010，，30： | 1 |
| 12 | Impact of Autumn SST in the Japan Sea on Winter Rainfall and Air Temperature in Northeast China显示文摘We studied the impact of sea surface temperature anomaly(SSTA) in the Japan Sea and the sea area east of Japan on the winter rainfall and air temperature in Northeast(NE) China using the singular value decomposition(SVD) and empirical orthogonal function(EOF). The monthly-mean rainfall data observed at 160 stations in China, monthly-mean sea surface temperature(SST) of the Hadley Center for Climate Prediction and Research and monthly-mean air temperature from the NCEP reanalysis during 1960–2011 were used. Correlation analysis indicates that the SSTAs in the Japan Sea in September may last for three or four months and are an important index for forecasting the winter rainfall and air temperature in NE China. Positive SSTAs in the central Japan Sea and in the sea area east of Tokyo correspond to positive rainfall anomaly and negative air temperature anomaly in NE China. With the rise of SST in the Japan Sea, a weak cyclone appears over the Japan Sea. The northeasterly wind transports water vapor from the Okhotsk to NE China, resulting in more rainfall and lower air temperature. Negative SSTA years are accompanied by warmer air temperature and less snow in NE China. The 1000 h Pa geopotential height anomaly and wind anomaly fields are simulated by IAP-9L model, which supports the analysis results. | SHI Xiaomeng SUN Jilin WU Dexing YI Li WEI Dongni | 2015 | Journal of Ocean University of China2015，14，4： | 1 |
| 13 | A Hybrid Na//K^(+)-Containing Electrolyte//O_(2) Battery with High Rechargeability and Cycle Stability显示文摘Na-O_(2) and K-O_(2) batteries have attracted extensive attention in recent years.However,the parasitic reactions involving the discharge product of NaO_(2) or K anode with electrolytes and the severe Na or K dendrites plague their rechargeability and cycle stability.Herein,we report a hybrid Na//K^(+)-containing electrolyte//O_(2) battery consisting of a Na anode,1.0 M of potassium trifate in diglyme,and a porous carbon cathode.Upon discharging,KO_(2) is preferentially produced via oxygen reduction in the cathode with Na+stripped from the Na anode,and reversely,the KO_(2) is electrochemically decomposed with Na+plated back onto the anode.Te new reaction pathway can circumvent the parasitic reactions involving instable NaO_(2) and active K anode,and alternatively,the good stability and conductivity of KO_(2) and stable Na stripping/plating in the presence of K^(+) enable the hybrid battery to exhibit an average discharge/charge voltage gap of 0.15 V,high Coulombic efciency of>96%,and superior cycling stability of 120 cycles.Tis will pave a new pathway to promote metal-air batteries. | Zhuo Zhu Xiaomeng Shi Dongdong Zhu Liubin Wang Kaixiang Lei Fujun Li | 2019 | Research2019，，1： | 1 |
| 14 | Brasenia-inspired hydrogel with sustained and sequential release of BMP and WNT activators for improved bone regeneration显示文摘Although bone morphogenetic protein(BMP) and WNT signaling play pivotal roles in bone development,homeostasis, and regeneration, the applications of proteins to stimulate corresponding signaling pathways showed limited outcomes in the repair and regeneration of bone defects that might be attributed to the reciprocal interventions of these pathways. In order to satisfy the combinational and sequential activation of BMP and WNT pathways, inspired by the heterogeneous hydrogel-liked structures of Brasenia, heterogeneous alginate/chitosan hydrogels were fabricated and spatially loaded with FK506 and BIO to achieve sustained and sequential release of the activators. Alkaline phosphatase staining, alizarin red staining and q RT-PCR results suggested that FK506 and BIO enhanced osteoblastic differentiation in vitro when used separately. Besides, by mixing and matching the activators and the hydrogel layers, a superior releasing mode that a combination of early FK506 release and following BIO release was identified via both in vitro and in vivo explorations for most efficient bone regeneration. These results suggested that drug-loaded heterogeneous hydrogels possess great potentials in treating bone loss defects for future clinical practice. | Xinqing Hao Xuewei Zhang Yue Hu Chunxia Ren Cangwei Liu Lu Wang Yijun Zhou Shuangshuang Wang Huanyu Luo Guangxing Yan Xiao Wang Xiaomeng Wang Feilong Ren Ce Shi, Wenlong Song Hongchen Sun | 2023 | Chinese Chemical Letters2023，34，7： | 0 |
| 15 | Schaftoside inhibits 3CL^(pro)and PL^(pro)of SARS-CoV-2 virus and regulates immune response and inflammation of host cells for the treatment of COVID-19显示文摘It is an urgent demand worldwide to control the coronavirus disease 2019(COVID-19)pandemic caused by the severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)virus.The 3-chymotrypsin-like protease(3CL^(pro))and papain-like protease(PL^(pro))are key targets to discover SARS-CoV-2 inhibitors.After screening 12 Chinese herbal medicines and 125 compounds from licorice,we found that a popular natural product schaftoside inhibited 3CL^(pro)and PL^(pro)with IC_(50)values of 1.73±0.22 and 3.91±0.19μmol/L,respectively,and inhibited SARS CoV-2 virus in Vero E6 cells with EC_(50)of 11.83±3. 23μmol/L. Hydrogen-deuterium exchange mass spectrometry analysis, quantum mechanics/molecular mechanics calculations, together with site-directed mutagenesis indicated the antiviral activities of schaftoside were related with non-covalent interactions with H41, G143 and R188 of3CLpro, and K157, E167 and A246 of PLpro. Moreover, proteomics analysis and cytokine assay revealed that schaftoside also regulated immune response and inflammation of the host cells. The antiinflammatory activities of schaftoside were confirmed on lipopolysaccharide-induced acute lung injury mice. Schaftoside showed good safety and pharmacokinetic property, and could be a promising drug candidate for the prevention and treatment of COVID-19. | Yang Yi Meng Zhang Heng Xue Rong Yu Yang-Oujie Bao Yi Kuang Yue Chai Wen Ma Jing Wang Xiaomeng Shi Wenzhe Li Wei Hong Junhua Li Elishiba Muturi Hongping Wei Joachim Wlodarz Szczepan Roszak Xue Qiao Hang Yang Min Ye | 2022 | Acta Pharmaceutica Sinica B2022，12，11： | 0 |
| 16 | Synergistic effects of carbon cycle metabolism and photosynthesis in Chinese cabbage under salt stress显示文摘Chinese cabbage(Brassica rapa ssp. pekinensis) has a long cultivation history and is one of the vegetable crops with the largest cultivation area in China. However, salt stress severely damages photosynthesis and hormone metabolism, nutritional balances, and results in ion toxicity in plants. To better understand the mechanisms of salt-induced growth inhibition in Chinese cabbage, RNA-seq and physiological index determination were conducted to explore the impacts of salt stress on carbon cycle metabolism and photosynthesis in Chinese cabbage. Here, we found that the number of thylakoids and grana lamellae and the content of starch granules and chlorophyll in the leaves of Chinese cabbage under salt stress showed a time-dependent response, first increasing and then decreasing. Chinese cabbage increased the transcript levels of genes related to the photosynthetic apparatus and carbon metabolism under salt stress, probably in an attempt to alleviate damage to the photosynthetic system and enhance CO_(2) fixation and energy metabolism. The transcription of genes related to starch and sucrose synthesis and degradation were also enhanced;this might have been an attempt to maintain intracellular osmotic pressure by increasing soluble sugar concentrations. Soluble sugars could also be used as potential reactive oxygen species(ROS) scavengers, in concert with peroxidase(POD)enzymes, to eliminate ROS that accumulate during metabolic processes. Our study characterizes the synergistic response network of carbon metabolism and photosynthesis under salt stress. | Hao Liang Qiling Shi Xing Li Peipei Gao Daling Feng Xiaomeng Zhang Yin Lu Jingsen Yan Shuxing Shen Jianjun Zhao Wei Ma | 2024 | Horticultural Plant Journal2024，10，2： | 0 |
| 17 | Gradient carbonyl-iron/carbon-fiber reinforced composite metamaterial for ultra-broadband electromagnetic wave absorption by multi-scale integrated design显示文摘The demand of high-end electromagnetic wave absorbing materials puts forward higher requirements on comprehensive performances of small thickness,lightweight,broadband,and strong absorption.Herein,a novel multi-layer stepped metamaterial absorber with gradient electromagnetic properties is proposed.The complex permittivity and permeability of each layer are tailored via the proportion of carbonyliron and carbon-fiber dispersing into the epoxy resin.The proposed metamaterial is further optimized via adjusting the electromagnetic parameters and geometric sizes of each layer.Comparing with the four-layer composite with gradient electromagnetic properties which could only realize reflection loss(RL)of less than−6 dB in 2.0-40 GHz,the optimized stepped metamaterial with the same thickness and electromagnetic properties realizes less than−10 dB in the relevant frequency range.Additionally,the RL of less than−15 dB is achieved in the frequency range of 11.2-21.4 GHz and 28.5-40 GHz.The multiple electromagnetic wave absorption mechanism is discussed based on the experimental and simulation results,which is believed to be attributed to the synergy effect induced by multi-scale structures of the metamaterial.Therefore,combining multi-layer structures and periodic stepped structures into a novel gradient absorbing metamaterial would give new insights into designing microwave absorption devices for broadband electromagnetic protections. | Qian Zhou Tiantian Shi Bei Xue Shengyue Gu Wei Ren Fang Ye Xiaomeng Fan Wenyan Duan Zihan Zhang Lifei Du | 2023 | International Journal of Minerals,Metallurgy and Materials2023，30，6： | 0 |
| 18 | A novel lightweight metamaterial with ultra broadband electromagnetic wave absorption induced by three-dimensional CNTs conductive-coated arrays显示文摘Lightweight metamaterials for broadband electromagnetic wave absorption have become a significant requirement for electromagnetic interference and stealth technologies.In this study,a novel lightweight metamaterial absorber with three-dimensional(3D)carbon nanotubes(CNTs)conductive-coated arrays is designed and fabricated through 3D printing and dipping process,which realized less than-10 dB reflection loss in the frequency range of 7.0–40 GHz.The effect of the sheet resistance of CNTs conductive coatings and geometric parameters of meta-structure on the frequency-dependent absorption properties is investigated,and the improved absorbing efficiency is discussed based on the synergy effect of multiscale structures of 3D conductive-coated arrays.Moreover,the volume of the proposed ultra broadband absorber is reduced by approximately 60.5%compared with that of the dense plate structure,indicating a significant lightening with efficient absorbing capacities.Additionally,the absorption bandwidth and intensity of the proposed absorber have insensitive changes with the variation of incident angle.Therefore,an ultra broadband electromagnetic absorption is designed and realized,indicating a promising lightweight ultra broadband electromagnetic absorbing candidate for lightweight metamaterial absorbers. | ZHOU Qian SHI TianTian XUE Bei GU ShengYue REN Wei YE Fang FAN XiaoMeng ZHANG YuXin QI ChenXi DU LiFei | 2023 | Science China(Technological Sciences)2023，66，3： | 0 |
| 19 | Overexpression of miR390b promotes stem elongation and height growth in Populus显示文摘MicroRNA390(miR390)is involved in plant growth and development by down-regulating the expression of the downstream genes trans-acting short interfering RNA3(TAS3)and AUXIN RESPONSE FACTORs(ARFs).There is a scarcity of research on the involvement of the miR390-TAS3-ARFs pathway in the stem development of Populus.Here,differentially expressedmiRNAs during poplar stem development were screened by small RNA sequencing analysis,and a novel function of miR390b in stem development was revealed.Overexpression of miR390b(OE-miR390b)resulted in a large increase in the number of xylem fiber cells and a slight decrease in the cell length at the longitudinal axis.Overall increases in stem elongation and plant height were observed in the OE-miR390b plants.According to transcriptome sequencing results and transient co-expression analysis,TAS3.1 and TAS3.2 were identified as the target genes of miR390 in poplar and were negatively regulated by miR390 in the apex.The transcription levels of ARF3.2 and ARF4 were significantly repressed in OE-miR390b plants and strongly negatively correlatedwith the number of xylem fiber cells along the longitudinal axis.These findings indicate that the conserved miR390-TAS3-ARFs pathway in poplar is involved in stem elongation and plant height growth. | Qiaofang Shi Dongdong Tian Jieyu Wang Aoli Chen Yuqing Miao Yiming Chen Jun Li Xiaomeng Wu Bo Zheng Wenwu Guo Xueping Shi | 2023 | Horticulture Research2023，10，2： | 0 |
| 20 | Exploiting Complex-Type N-Glycan to Improve the in Vivo Stability of Bioactive Peptides显示文摘Peptides can be potentmolecules with high efficacy and selectivity in the development of biotherapeutics.However,the poor pharmacokinetic properties of peptides pose major challenges for their broader medicinal applications.Inspired by the proteinstabilizing role of natural N-glycosylation,we design and synthesize a series of parathyroid hormone(PTH)peptides(1-34),bearing either N-GlcNAc or biantennary complex-type N-glycan modification,and evaluate their serum stability and biological activities.The results indicate that an N-Asn-linked complex-type sialylundecasaccharide can increase the serum half-life and in vivo bioactivity of PTH peptides with a broad tolerance of modification sites.Further,hydrogen/deuterium exchange mass spectroscopy indicates that the larger-sized Nglycan can induce enhanced hydration dynamics in its surroundings,which may facilitate an improved resistance for the peptide against enzymatic proteolysis.This sialylundecasaccharide-based peptideengineering strategy has also been applied to glucagon-like peptide-1(7-37),leading to glycopeptides with enhanced hypoglycemic activity and acting time in vivo.Together,these results demonstrate the potential of using sialylated complextype N-glycan as a general engineering strategy for developing long-acting peptide therapeutics. | Qijia Wei Jun Zhang Yuankun Dao Mengliang Ye Dangliang Liu Weidong Dong Ning Yuan Hongxing Li Chunli Song Mo Li Xiaomeng Shi Suwei Dong | 2023 | CCS Chemistry2023，5，7： | 0 |
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