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| 1 | Pigment signatures of some diatoms isolated from China seas显示文摘The photosynthetic pigments of 12 species (14 strains) of cultured diatoms from six genera under specific conditions were examined by the HPLC. The diatom genera were Skeletonema, Thalassiosira, Chaetoceros, Nitzschia, Phaeodactylum and Meuniera. All strains were isolated from China seas and most of them were from the Jiaozhou Bay, China. Fifteen pigments were identified and eight of them were various chlorophyll a derivatives. Chlorophyll a, c2 and c1 and the carotenoids fucoxanthin, diadinoxanthin, diatoxanthin and β, β-carotene existed in all species. The ratios of each pigment to chlorophyll a were compared with the results in literatures. The pigment ratios of this study generally fall within the ranges reported by the literatures although the maximum ratio of fucoxanthin to chlorophyll a was higher and the ratios of chlorophyll c and diatoxanthin to chlorophyll a were low. The pigment ratios are useful to understanding the pigment signatures of diatoms in the Jiaozhou Bay, China, and to setting up the chemotaxonomic method of phytoplankton in these sea areas. | YAO Peng YU Zhigang DENG Chunmei | 2006 | Acta Oceanologica Sinica2006,25,1: | 18 |
| 2 | Additive manufacturing of CNTs/PLA composites and the correlation between microstructure and functional properties显示文摘Owing to the facile,low cost,rapid,personalization characters,3D printing method has been one of the most attractive additive manufacturing processes in medicine,airplane,packaging and printing areas.In this work,a series of carbon nanotubes/polylactic acid(CNTs/PLA) composites were prepared through the combination of molten co-extrusion and 3D printing processes.The orientation and dispersion of CNTs in PLA matrix were investigated to explore the impact of 3D printing process on the morphology of CNTs/PLA composites via transmission electron microscopy,field emission scanning electron microscopy and Raman spectroscopy.X-ray diffractometer,differential scanning calorimetry,and thermal gravity analysis were employed to study the crystal structure and thermal properties of the composites.In addition,the electrical conductivity of the prepared specimen revealed that the orientation of CNTs in PLA might enhance the conductivity of the composite.It was found that 3D printing process was beneficial to increasing the purity of CNTs,electrical conductivity and mechanical properties of CNTs/PLA composites. | Xing Zhou Jingrui Deng Changqing Fang Wanqing Lei Yonghua Song Zisen Zhang Zhigang Huang Yan Li | 2021 | Journal of Materials Science & Technology2021,,1: | 6 |
| 3 | A review on transesterification of propylene carbonate and methanol for dimethyl carbonate synthesis显示文摘Dimethyl carbonate(DMC)is widely applied in various fields according to its outstanding physico-chemical properties,especially as a solvent in electrolyte of lithium-ion batteries.More than 90%DMC in China is industrially produced from the propylene carbonate(PC)and methanol(MeOH)route because it is an environmentally friendly and highly efficient process.This review summarizes different DMC production technologies,homogeneous and heterogeneous catalysts,catalytic mechanisms,reaction kinetics and engineering,with particular focus on the relationship between catalyst preparation and catalytic performances.The advantages and disadvantages of various catalysts are categorically compared.Homogeneous catalysts are highly efficient but prone to deactivate and are difficult to separate.Heterogeneous catalysts are easy to separate and have the promising future in industrial application,but their low catalytic efficiency is still the critical bottleneck.From process aspect,the catalytic distillation technology would be promising to overcome the efficiency problem of solid catalysts. | Wenjie Deng Lei Shi Jie Yao Zhigang Zhang | 2019 | Carbon Resources Conversion2019,2,3: | 6 |
| 4 | Sub-10-fs pulse generation directly from a KLM Ti: sapphire laser显示文摘By reducing the effects of frequency dependent mode size and intracavity gain saturation of a KLM Ti: sapphire laser, the pulse bandwidth broadening is enhanced significantly. 8.5 fs pulses with the bandwidth of 92 nm at wavelength of 710 nm have been generated directly from this laser and measured with an extracavity group velocity dispersion compensation system. | Weizhu Lin Rui Liao Jinhui Wen Zhigang Liu Li Deng Haichao Zhang Tianshu Lai | 2002 | Chinese Science Bulletin2002,47,12: | 5 |
| 5 | A New Parameter-config Based Slow-start Mechanism显示文摘 | Zhigang Chen Xiaoheng Deng Lianming Zhang Biqing Zeng | 2005 | 通讯和计算机(中英文版)2005,2,5: | 5 |
| 6 | Size,morphology,and composition of lunar samples returned by Chang'E-5 mission显示文摘This study focuses on the physical and chemical properties of surficial lunar regolith(LR)samples returned from the Moon by the Chang’E-5(CE-5)mission.Insights regarding the effect of a new sampling geological site on the surficial lunar sample CE5 C0400 were illustrated using nondestructive techniques such as laser diffractometry coupled with image analysis,X-ray computed tomography,and field emission scanning electron microscopy equipped with energy dispersive spectroscopy,and Xray diffraction combined with Rietveld refinement.From the characterization analyses,the CE-5 sampling site in the northeastern Oceanus Procellarum on the Moon yields a unique collection of relatively regular-shaped and fine basalt-dominated particles.The median grain size D_(50) is(55.24±0.96)μm,falling within the relatively low end of the range of the Apollo lunar returned samples.The coefficient of uniformity C_(u)of 15.1 and the coefficient of curvature C_(c)of 1.7 could classify CE5 C0400 to be well-graded.The minerals in CE5 C0400 comprise approximately 44.5%pyroxene,30.4%plagioclase,3.6%olivine,and6.0%ilmenite.There is a relatively low content of approximately 15.5%glass phase in the CE-5 lunar sample.From the results,we deduce that the CE-5 LR structure could have mainly resulted from micrometeoroid impacts to achieve such a high level of maturity. | Hui Zhang Xian Zhang Guang Zhang Keqi Dong Xiangjin Deng Xiaosong Gao Yaodong Yang Yuan Xiao Xiao Bai Kaixin Liang Yiwei Liu Wenbin Ma Shaofan Zhao Ce Zhang Xiaojing Zhang Jian Song Wei Yao Hong Chen Weihua Wang Zhigang Zou Mengfei Yang | 2022 | Science China(Physics,Mechanics & Astronomy)2022,65,2: | 4 |
| 7 | Energetic electrons associated with magnetic reconnection in the sheath of interplanetary coronal mass ejection显示文摘Magnetic reconnection is an important universal plasma dissipation process that converts magnetic energy into plasma thermal and kinetic energy,and simultaneously changes the magnetic field topology.In this paper,we report the first observation of energetic electrons associated with asymmetric reconnection in the sheath of an interplanetary coronal mass ejection.The magnetic field shear angle was about 151°,implying guide-field reconnection.The width of the exhaust was about 8×104 km.The reconnection rate was estimated as 0.044-0.08,which is consistent with fast reconnection theory and previous observations.We observed flux enhancements of energetic electrons with energy up to 400 keV in this reconnection exhaust.The region where ener- getic electron fluxes were enhanced is located at one pair of separatrices in the higher density hemisphere.We discuss these observation results,and compare with previous observations and recent kinetic simulations. | HUANG ShiYong DENG XiaoHua ZHOU Meng YUAN ZhiGang LI HuiMin WANG DeDong | 2012 | Chinese Science Bulletin2012,57,12: | 3 |
| 8 | Reduced graphene oxide aerogel decorated with Mo_(2)C nanoparticles toward multifunctional properties of hydrophobicity,thermal insulation and microwave absorption显示文摘Reduced graphene oxide(rGO)aerogels are emerging as very attractive scaffolds for high-performance electromagnetic wave absorption materials(EWAMs)due to their intrinsic conductive networks and intricate interior microstructure,as well as good compatibility with other electromagnetic(EM)components.Herein,we realized the decoration of rGO aerogel with Mo_(2)C nanoparticles by sequential hydrothermal assembly,freeze-drying,and high-temperature pyrolysis.Results show that Mo_(2)C nanoparticle loading can be easily controlled by the ammonium molybdate to glucose molar ratio.The hydrophobicity and thermal insulation of the rGO aerogel are effectively improved upon the introduction of Mo_(2)C nanoparticles,and more importantly,these nanoparticles regulate the EM properties of the rGO aerogel to a large extent.Although more Mo_(2)C nanoparticles may decrease the overall attenuation ability of the rGO aerogel,they bring much better impedance matching.At a molar ratio of 1:1,a desirable balance between attenuation ability and impedance matching is observed.In this context,the Mo_(2)C/r GO aerogel displays strong reflection loss and broad response bandwidth,even with a small applied thickness(1.7 mm)and low filler loading(9.0wt%).The positive effects of Mo_(2)C nanoparticles on multifunctional properties may render Mo_(2)C/r GO aerogels promising candidates for high-performance EWAMs under harsh conditions. | Yahui Wang Minghui Zhang Xuesong Deng Zhigang Li Zongsheng Chen Jiaming Shi Xijiang Han Yunchen Du | 2023 | International Journal of Minerals,Metallurgy and Materials2023,30,3: | 2 |
| 9 | Electron dynamics and wave activities associated with mirror mode structures in the near-Earth magnetotail显示文摘We report the observation of mirror mode structures by Cluster spacecraft at around X^-16 RE in the Earth’s magnetotail.The wavelength of the mirror structure is larger than 7000 km,corresponding to tens of ion gyroradii.Features of the mirror structures are similar to those detected in the magnetosheath:the anti-correlation between the magnetic field strength and plasma density,zero phase velocity in the plasma rest frame and linear polarization.The structures were observed in a region bounded by two dipolarizations during a substorm intensification.Thus,the dipolarization process may provide a plasma condition facilitating the growth of the mirror mode structures.Another interesting feature is the electron dynamics within the mirror structures.Thermal electron energy flux has an enhancement at 0°and 180°pitch angles inside the magnetic dips of the first three mirror structures and an enhancement at 90°pitch angle inside the magnetic dip of the last structure.The different electron distribution inside the mirror structures might be a result of different evolution stages of the mirror wave.The last structure may be in the nonlinear stage of the mirror instability,whereas the three others with quasi-sinusoidal waveforms may be in the linear stage.In addition,we found that intense whistler waves were confined within the magnetic dips.We conjecture that whistler waves observed in the first three dips were generated in a remote region,then they were trapped in the mirror mode troughs and transported toward the spacecraft;while the whistler wave detected in the last dip was excited locally by the electron anisotropy instability. | LI HuiMin ZHOU Meng DENG XiaoHua YUAN ZhiGang HUANG ShiYong | 2014 | Science China(Technological Sciences)2014,57,8: | 2 |
| 10 | Chromosome G-banding in SituHybridization of RFLP Marker umc58 Linked with the Gene hm1 Dictating Helminthosporium carbonum Susceptibility1 in Maize显示文摘ChromosomeG┐bandinginSituHybridizationofRFLPMarkerumc58LinkedwiththeGenehm1DictatingHelminthosporiumcarbonumSusceptibility1in... | Deng Fengjiao Feng Xiaorong Zheng Junying Liu Ting Yi Qingming Zhang Xiyuan Xiao Hanbing Xue Zhigang | 1997 | Wuhan University Journal of Natural Sciences1997,2,2: | 2 |
| 11 | Inhibitory leukocyte immunoglobulin-like receptors in cancer development显示文摘Inhibitory leukocyte immunoglobulin-like receptors(LILRB1-5) signal through immunoreceptor tyrosine-based inhibitory motifs(ITIMs) in their intracellular domains and recruit phosphatases protein tyrosine phosphatase, non-receptor type 6(PTPN6, SHP-1), protein tyrosine phosphatase, non-receptor type 6(PTPN6, SHP-2), or Src homology 2 domain containing inositol phosphatase(SHIP) to negatively regulate immune cell activation. These receptors are known to play important regulatory roles in immune and neuronal functions. Recent studies demonstrated that several of these receptors are expressed by cancer cells. Importantly, they may directly regulate development, drug resistance, and relapse of cancer, and the activity of cancer stem cells. Although counterintuitive, these findings are consistent with the generally immune-suppressive and thus tumor-promoting roles of the inhibitory receptors in the immune system. This review focuses on the ligands, expression pattern, signaling, and function of LILRB family in the context of cancer development. Because inhibition of the signaling of certain LILRBs directly blocks cancer growth and stimulates immunity that may suppress tumorigenesis, but does not disturb normal development, LILRB signaling pathways may represent ideal targets for treating hematological malignancies and perhaps other tumors. | ZHANG FeiFei ZHENG JunKe KANG XunLei DENG Mi LU ZhiGang KIM Jaehyup ZHANG ChengCheng | 2015 | Science China(Life Sciences)2015,58,12: | 2 |
| 12 | Grain for Green versus Grain: Conflict between Food Security and Conservation Set-Aside in China显示文摘 | Zhigang Xu Jintao Xu Xiangzheng Deng Jikun Huang | 2005 | World Development2005,,1: | 2 |
| 13 | Influence of RNA interference on the mitochondrial subcellular localization of alpha-synuclein and on the formation of Lewy body-like inclusions in the cytoplasm of human embryonic kidney 293 cells induced by the overexpression of alphasynuclein显示文摘The specific and effective α-synuclein RNA interference (RNAi) plasmids, and the α-synuclein-pEGFP recombinant plasmids were co-transfected into human embryonic kidney 293 (HEK293) cells using the lipofectamine method. Using an inverted fluorescence microscope, α-synuclein proteins were observed to aggregate in the cytoplasm and nucleus. Wild-type α-synuclein proteins co-localized with mitochondria. Hematoxylin-eosin staining revealed round eosinophilic bodies (Lewy body-like inclusions) in the cytoplasm of some cells transfected with α-synuclein-pEGFP plasmid. However, the formation of Lewy body-like inclusions was not observed following transfection with the RNAi pSYN-1 plasmid. RNAi blocked Lewy body-like inclusions in the cytoplasm of HEK293 cells induced by wild-type α-synuclein overexpression, but RNAi did not affect the subcellular localization of wild-type α-synuclein in mitochondria. | Tao Chen Xiaoping Liao Guoqiang Wen Yidong Deng Min Guo Zhigang Long Feng Ouyang | 2012 | Neural Regeneration Research2012,7,2: | 2 |
| 14 | Epigenetic silencing of WIF - 1 in hepatocellular carcinomas显示文摘 | Yun Deng Bin Yu Qin Cheng Jie Jin Haiyan You Ronghu Ke Ning Tang Qiujin Shen Huiqun Shu Genfu Yao Zhigang Zhang Wenxin Qin | 2010 | Journal of Cancer Research and Clinical Oncology2010,,8: | 1 |
| 15 | Grain for Green versus grain: Conflict between food security and conservation set-aside in China显示文摘 | Xu Zhigang Xu Jintao Deng Xiangzheng | 2006 | World Development2006,34,1: | 1 |
| 16 | Synthesis and anti-HIV activity of new alkenyldiarylmethane (ADAM) non-nucleoside reverse transcriptase inhibitors (NNRTIs) incorporating benzoxazolone and benzisoxazole rings显示文摘 | Deng BoLiang Cullen M D Zhou Zhigang | 2006 | Bioorganic & Medicinal Chemistry2006,14,7: | 1 |
| 17 | Association Between Lipid Profiles and Left Ventricular Hypertrophy:New Evidence from a Retrospective Study显示文摘Objective To explore the association between lipid profiles and left ventricular hypertrophy in a Chinese general population.Methods We conducted a retrospective observational study to investigate the relationship between lipid markers[including triglycerides,total cholesterol,low-density lipoprotein cholesterol,high-density lipoprotein(HDL)cholesterol,non-HDL-cholesterol,apolipoprotein A-I,apolipoprotein B,lipoprotein[a],and composite lipid profiles]and left ventricular hypertrophy.A total of 309,400 participants of two populations(one from Beijing and another from nationwide)who underwent physical examinations at different health management centers between 2009 and 2018 in China were included in the cross-sectional study.7,475 participants who had multiple physical examinations and initially did not have left ventricular hypertrophy constituted a longitudinal cohort to analyze the association between lipid markers and the new-onset of left ventricular hypertrophy.Left ventricular hypertrophy was measured by echocardiography and defined as an end-diastolic thickness of the mterventricular septum or left ventricle posterior wall>11 mm.The Logistic regression model was used in the cross-sectional study.Cox model and Cox model with restricted cubic splines were used in the longitudinal cohort.Results In the cross-sectional study for participants in the highest tertile of each lipid marker compared to the respective lowest,triglycerides[odds ratio(OR):1.2S0,95%CI:1.060 to 1.474],HDL-cholesterol(OR:0.780,95%CI:0.662 to 0.918),and lipoprotein(a)(OR:1.311,95%C7:1.115 to 1.541)had an association with left ventricular hypertrophy.In the longitudinal cohort,for participants in the highest tertile of each lipid marker at the baseline compared to the respective lowest,triglycerides[hazard ratio(HR):3.277,95%C/:1.720 to 6.244],HDL-cholesterol(HR:0.516,95%C7:0.283 to 0.940),non-HDL-cholesterol(HR:2.309,95%C/:1.296 to 4.112),apolipoprotein B(HR:2.244,95%CI:1.251 to 4.032)showed an association with new-onset left ventricular hypertrophy.In the Cox model with forward stepwise selection,triglycerides were the only lipid markers entered into the final model.Conclusion Lipids levels,especially triglycerides,are associated with left ventricular hypertrophy.Controlling triglycerides level potentiate to be a strategy in harnessing cardiac remodeling but deserve to be furdier investigated. | Xuewei Huang Keqiong Deng Juanjuan Qin Fang Lei Xingyuan Zhang Wenxin Wang Lijin Lin Yuming Zheng Dongai Yao Huiming Lu Feng Liu Lidong Chen Guilan Zhang Yueping Liu Qiongyu Yang Jingjing Cai Zhigang She Hongliang Li | 2022 | Chinese Medical Sciences Journal2022,37,2: | 1 |
| 18 | Authentication and Recovery of Medical Diagnostic Image Using Dual Reversible Digital Watermarking显示文摘 | Deng Xiaohong Cheng Zhigang Zeng Feng | 2013 | Journal of Nanoscience&Nanotechnology2013,13,3: | 1 |
| 19 | Bio-inspired untethered fully soft robots in liquid actuated by induced energy gradients显示文摘Soft robotics with new designs,fabrication technologies and control strategies inspired by nature have been totally changing our view on robotics.To fully exploit their potential in practical applications,untethered designs are preferred in implementation.However,hindered by the limited thermal/mechanical performance of soft materials,it has been always challenging for researchers to implement untethered solutions,which generally involve rigid forms of high energy-density power sources or high energy-density processes.A number of insects in nature,such as rove beetles,can gain a burst of kinetic energy from the induced surface-energy gradient on water to return to their familiar habitats,which is generally known as Marangoni propulsion.Inspired by such a behavior,we report the agile untethered mobility of a fully soft robot in liquid based on induced energy gradients and also develop corresponding fabrication and maneuvering strategies.The robot can reach a speed of 5.5 body lengths per second,which is 7-fold more than the best reported,0.69(body length per second),in the previous work on untethered soft robots in liquid by far.Further controlling the robots,we demonstrate a soft-robot swarm that can approach a target simultaneously to assure a hit with high accuracy.Without employing any high energy-density power sources or processes,our robot exhibits many attractive merits,such as quietness,no mechanical wear,no thermal fatigue,invisibility and ease of robot fabrication,which may potentially impact many fields in the future. | Liang Xiong Lyu Fen Li Kang Wu Pan Deng Seung Hee Jeong Zhigang Wu Han Ding | 2019 | National Science Review2019,6,5: | 1 |
| 20 | Cost Sharing Based Truthful Spectrum Auction with Collusion-Proof显示文摘Spectrum auction is an important approach of spectrum distribution in cognitive radio networks. However, a single secondary user(SU) probably can't afford the price of spectrum. Multiple SUs grouping together to participate in the auction as a whole is helpful to increase purchasing power. However, SUs could suffer from a new group cheating problem, i.e., parts of users conspire to manipulate the auction by submitting untruthful bids. Existing auction mechanisms were mainly designed to be strategy-proof only for individual user and can't deal with group cheating. In this paper, a novel spectrum auction mechanism called COSTAG(COst Sharing based Truthful Auction with Group-buying) is proposed to address the group cheating problem. COSTAG consists of a grouping rule to perform grouping and a payment rule to determine the market-clearing price in the spectrum auction. Different from single-echelon pricing approach employed in existing works, a multi-echelon pricing strategy is designed to increase the transaction rate and optimize social profit for the auction. Comprehensive theoretical analysis shows that COSTAG can satisfy the crucial economic robustness properties, both individual and group truthfulness. Simulations demonstrate that comparing with existing works, COSTAG can improve the system performance significantly. | Deming Pang Zhigang Deng Gang Hu Yingwen Chen Ming Xu | 2018 | China Communications2018,15,2: | 1 |