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| 1 | Thermally conductive polyvinyl alcohol composite films via introducing hetero-structured MXene@silver fillers显示文摘Ag nanoparticles were in-situ grown on the surface of MXene nanosheets to prepare thermally conductive hetero-structured MXene@Ag fillers.With polyvinyl alcohol(PVA)as the polymer matrix,thermally conductive MXene@Ag/PVA composite films were fabricated by the processes of solution blending,pouring,evaporative self-assembly.With the same mass fraction,MXene@Ag-III(MXene/Ag,2:1,w/w)presents more significant improvement in thermal conductivity coefficient(λ)than MXene@Ag,single MXene,Ag,simply blending MXene/Ag.MXene@Ag-III/PVA composite films show dual functions of excellent thermal conductivity and electromagnetic interference(EMI)shielding.When the mass fraction of MXene@Ag-III is 60 wt.%,the in-planeλ(λ_(∥)),through-planeλ(λ_(⊥)),EMI shielding effectiveness(EMI SE)are 3.72 and 0.41 W/(m∙K),32 dB,which are increased by 3.1,1.3,105.7 times than those of pure PVA film(0.91 and 0.18 W/(m∙K),0.3 dB),respectively.The 60 wt.%MXene@Ag-III/PVA composite film also has satisfying mechanical and thermal properties,with Young’s modulus,glass transition temperature,heat resistance index of 3.8 GPa,58.5 and 175.3℃,respectively. | Mukun Li Yuyao Sun Dianying Feng Kunpeng Ruan Xia Liu Junwei Gu | 2023 | Nano Research2023，16，5： | 10 |
| 2 | SKP2 attenuates NF-κB signaling by mediating IKKβ degradation through autophagy显示文摘发信号的 NF-B 控制从煽动性的回答到房间死亡的生理的过程的一个大集合。它的激活紧通过控制多重发信号的部件的活动和稳定性被调整。这里,我们鉴别 NF-B 激活被 F 盒子蛋白质压制, S 阶段 kinase 联系了蛋白质 2 (SKP2 ) 。SKP2 缺乏提高了 NF-B 激活以及煽动性的 cytokines 的生产。另外, SKP2 potently 在 IB kinase (IKK ) 堵住了 NF-B 激活水平。机械学的学习进一步表明 SKP2 作为一个适配器工作支持在活跃 IKK 和 autophagic 货物受体 p62 之间的一个相互作用调停经由选择 autophagy 的 IKK 降级。这些调查结果在 SKP2 由充当第二等的受体以一种 p62 依赖的方式为降级帮助 IKK 交货到 autophagosomes 的 NF-B 激活识别 SKP2 的一个以前未被认出的角色。 | Kunpeng Liu Lei Zhang Qiang Zhao Zhiyao Zhao Feng Zhi Yunfei Qin Jun Cui | 2018 | Journal of Molecular Cell Biology2018，10，3： | 4 |
| 3 | Highly Ordered Thermoplastic Polyurethane/Aramid Nanofiber Conductive Foams Modulated by Kevlar Polyanion for Piezoresistive Sensing and Electromagnetic Interference Shielding显示文摘Highly ordered and uniformly porous structure of conductive foams is a vital issue for various functional purposes such as piezoresistive sensing and electromagnetic interference(EMI) shielding. With the aids of Kevlar polyanionic chains, thermoplastic polyurethane(TPU) foams reinforced by aramid nanofibers(ANF) with adjustable pore-size distribution were successfully obtained via a nonsolvent-induced phase separation. In this regard, the most outstanding result is the in situ formation of ANF in TPU foams after protonation of Kevlar polyanion during the NIPS process. Furthermore, in situ growth of copper nanoparticles(Cu NPs) on TPU/ANF foams was performed according to the electroless deposition by using the tiny amount of pre-blended Ti_(3)C_(2)T_(x) MXene as reducing agents. Particularly, the existence of Cu NPs layers significantly promoted the storage modulus in 2,932% increments, and the well-designed TPU/ANF/Ti_(3)C_(2)T_(x) MXene(PAM-Cu) composite foams showed distinguished compressive cycle stability. Taking virtues of the highly ordered and elastic porous architectures, the PAM-Cu foams were utilized as piezoresistive sensor exhibiting board compressive interval of 0–344.5 kPa(50% strain) with good sensitivity at 0.46 kPa^(-1). Meanwhile,the PAM-Cu foams displayed remarkable EMI shielding effectiveness at 79.09 dB in X band. This work provides an ideal strategy to fabricate highly ordered TPU foams with outstanding elastic recovery and excellent EMI shielding performance, which can be used as a promising candidate in integration of satisfactory piezoresistive sensor and EMI shielding applications for human–machine interfaces. | Kunpeng Qian Jianyu Zhou Miao Miao Hongmin Wu Sineenat Thaiboonrod Jianhui Fang Xin Feng | 2023 | Nano-Micro Letters2023，15，6： | 4 |
| 4 | Stimulated Brillouin scattering evolution and suppression in an integrated stimulated thermal Rayleigh scattering-based fiber laser显示文摘The spectral purity of fiber lasers has become a critical issue in both optical sensing and communication fields.As a result of ultra-narrow intrinsic linewidth, stimulated thermal Rayleigh scattering(STRS) has presented special potential to compress the linewidth of fiber lasers. To suppress stimulated Brillouin scattering(SBS), the most dominant disturbance for STRS in optical fibers, a semi-quantitative estimation has been established to illuminate the mechanism of suppressing SBS in a periodic tapered fiber, and it agrees with experimental results. Finally, a linewidth compression device based on STRS is integrated into a single-longitudinal-mode ring-cavity fiber laser with secondary cavities, and its linewidth is verified to be 200 Hz through a self-heterodyne detecting and Voigt fitting method. | JIWEN CUI HONG DANG KUNPENG FENG WENLEI YANG TAO GENG YANG HU YUANHANG ZHANG DONG JIANG XUDONG CHEN JIUBIN TAN | 2017 | Photonics Research2017，5，3： | 2 |
| 5 | C60intercalating Ti_(3)C_(2)T_(x) MXenes assisted by γ-cyclodextrin for electromagnetic interference shielding films with high stability显示文摘Ti_(3)C_(2)T_(x)MXenes with excellent metallic conductivity and flexibility have shown a promising prospect as electromagnetic interference(EMI) shielding materials. Ultrathin, hierarchical hybrid films were fabricated by using C60intercalating Ti_(3)C_(2)T_(x)MXenes with the assistance of water-soluble γ-cyclodextrin(CD). The C_(60)/CD complex was obtained by high-speed vibration milling using hydrophilic CD as dispersing agent. After thermal annealing treatment, the obtained hybrid film exhibited excellent EMI shielding(53.52±0.43 dB), hydrophobicity(water contact angle: 93.7°) and mechanical stability(over 0.9 million bending times). Taking advantage of the antioxidant of C_(60), the chemical durability of Ti_(3)C_(2)T_(x) MXenes based hybrid films was also improved as expected. These results indicate that the well-designed hierarchical hybrid films with the intercalation of C_(60) have promising potential for high-performance EMI shielding applications. | Kunpeng Qian Shuang Li Jianhui Fang Yuhuan Yang Shaomei Cao Miao Miao Xin Feng | 2022 | Journal of Materials Science & Technology2022，，32： | 2 |
| 6 | Exploration of Suspected Surface Ruptures of the M_S8.0 Wenchuan Earthquake at Frontal Areas of Longmenshan Using Shallow Seismic Reflection显示文摘The great M_S8.0 Wenchuan earthquake on May 12,2008 was generated by abrupt faulting in the Yingxiu-Beichuan fault along the Longmenshan fault zone. The earthquake not only produced surface ruptures along the Yingxiu-Beichuan and Guanxian-Jiangyou faults,but also surface ruptures,arching of highway pavement,sand-boils and waterspouts in various degrees in areas such as Shifang and Mianzhu on the Chengdu Plain. To understand the shallow geological structures under the surface rupture zone,a 6350m long high-resolution shallow seismic reflection profile in near-EW direction was performed. This profile is located at Shigu town,Shifang city,where a suspected earthquake surface rupture zone was discovered. In this study,a group interval of 3m,shotpoint interval of 18m,and a 300-channel 25-fold observation system were used. In consideration of both near-surface reflections and dipping interface imaging,we adopted the split-spread geometry and asymmetrical zero-offset receiving technique. To better suppress random-noise and raise the signal-to-noise ratio of seismic data,30 times vertical stacking of vibrator signals was made for each common-shot gather after correlation of individual records. By using the above work method and spread geometry,we obtained high-resolution images of structures in the depth range of 15m~800m after data processing. The result shows the existence of buried thrust faults thrusting to the plain area and back-thrust faults under the surface rupture zone. It also shows that the activity of the buried thrust faults may be the main cause for folding and deformation in near-surface strata and coseismic surface rupturing. | Liu Baojin Yang Xiaoping Feng Shaoying Kou Kunpeng | 2009 | Earthquake Research in China2009，23，3： | 1 |
| 7 | Influence factors on natural frequencies of composite materials显示文摘Compared with traditional materials, composite materials have lower specific gravity, larger specific strength, larger specific modulus, and better designability structure and structural performance. However, the variability of structural properties hinders the control and prediction of the performance of composite materials. In this work, the Rayleigh–Ritz and orthogonal polynomial methods were used to derive the dynamic equations of composite materials and obtain the natural frequency expressions on the basis of the constitutive model of laminated composite materials. The correctness of the analytical model was verified by modal hammering and frequency sweep tests. On the basis of the established theoretical model, the influencing factors, including layers, thickness, and fiber angles, on the natural frequencies of laminated composites were analyzed. Furthermore, the coupling effects of layers, fiber angle, and lay-up sequence on the natural frequencies of composites were studied. Research results indicated that the proposed method could accurately and effectively analyze the influence of single and multiple factors on the natural frequencies of composite materials. Hence, this work provides a theoretical basis for preparing composite materials with different natural frequencies and meeting the requirements of different working conditions. | Bo WANG Feng ZHAO Zixu ZHAO Kunpeng XU | 2020 | Frontiers of Mechanical Engineering2020，15，4： | 1 |
| 8 | Virescentia guangxiensis(Batrachospermales,Rhodophyta):a new freshwater red algal species from South China显示文摘Virescentia guangxiensis,a new species of Virescentia from Guangxi,South China,is described and illustrated based on morphological observations and phylogenetic analysis.This species was distinguished morphologically from other species by the presence of special expansion cells with a variable shape,obovoid,spherical,pear-shaped,located in the penultimate cells of primary or secondary fascicles,rarely terminal on primary fascicles,as well as by small whorls(250-350-μm wide)and short primary fascicles(5-7 cell stories).Phylogenetic analysis of molecular data from the rbc L and COI-5P loci supported the separation of the proposed new species from other species in the genus Virescentia.This is the first species of the order Batrachospermales reported in Guangxi and the second species of the genus Virescentia reported in China.This study expands the known species diversity and geographical distribution of freshwater Rhodophyta in China. | Kunpeng FANG Fangru NAN Jia FENG Junping LÜ Qi LIU Xudong LIU Shulian XIE | 2021 | Journal of Oceanology and Limnology2021，39，4： | 0 |
| 9 | Comparative Study on Natural Selenium-enriching Ability of 7 Main Cultivars of Pueraria lobata显示文摘[Objectives]To screen out the selenium-enriched Pueraria lobata varieties suitable for cultivation in Guangxi according to the natural selenium-enriching ability of 7 main cultivars.[Methods]Taking 7 main cultivars of P.lobata in different places as experimental materials,field cultivation was carried out on the selenium-enriched yellow soil in Shanglin County,Nanning City of Guangxi,to study the difference in selenium-enriching ability of different main cultivars and the comparison of selenium content in different parts,as well as the transport mechanism.[Results]Under the condition of soil selenium content of 0.78 mg/kg,the selenium content of the root tubers of the 7 main cultivars all reached the selenium-enrichment standard.The selenium content of a single root tuber of Heping Variety in Teng County,Guangxi was the highest,at 0.061 mg/kg;Guifenge No.1 was the second at 0.055 mg/kg,and the total selenium accumulation per unit area was the largest.The ranking of selenium content in different parts of the same variety was:leaf>vine>head>root tuber.[Conclusions]Guifenge No.1 has the highest yield and the largest total selenium accumulation,so it is the most suitable natural selenium-enriched variety for cultivation. | Kunpeng OU Yuanning YANG Xueli WANG Risheng HUANG Chengcheng FENG Honghua HUANG Yan WANG | 2020 | Asian Agricultural Research2020，12，8： | 0 |
| 10 | Pauciramus yunnanensis,gen.et sp.nov.,a novel freshwater red alga from China with proposal of the Ottiales ord.nov.(Nemaliophycidae,Rhodophyta)显示文摘Species of the red algal order Acrochaetiales mostly inhabit marine environments,with only two freshwater taxa Audouinella and Ottia.A new genus and species are described for freshwater red alga Pauciramus yunnanensis from Ailao Mountain,Yunnan,China.It is closely related to Ottia and a new order Ottiales was proposed for these genera.Pauciramus has unique combination of morphological characteristics including the following:plants caespitose and densely pulvinate,slender uniseriate filaments with well-developed rhizoids,rarely branched,cylindrical vegetative cell with a single,ribbon-shaped and parietal chloroplast,reproduction by tetrasporangia,and dense sporangial branchlet only at the upper portion of filaments.Phylogenetic analysis of sequence data from the plastid ribulose-1,5-bisphosphate carboxylase-oxygenase large-subunit(rbc L),small subunit gene of the ribosomal cistron(SSU)and barcode region near the 5′end of the mitochondrial cytochrome oxidase subunit I(COI-5P)indicated that:the new taxon,P.yunnanensis,was in a well-supported clade with Ottia meiospora,and this clade was sister to order Palmariales and Acrochaetiales.To adhere to the principle of monophyly,a new freshwater order Ottiales including Ottia and Pauciramus is proposed.Despite the high sequence interspecific divergences and obvious morphological differences between genera Ottia and Pauciramus,seems impractical to establish a new family for a monospecific genus.Therefore,we temporarily classified Pauciramus into the family Ottiaceae,and made necessary revisions to the description to accommodate this genus. | Kunpeng FANG Fangru NAN Jia FENG Junping LÜ Qi LIU Xudong LIU Shulian XIE | 2022 | Journal of Oceanology and Limnology2022，40，3： | 0 |
| 11 | Synchronous deprotonation–protonation for mechanically robust chitin/aramid nanofibers conductive aerogel with excellent pressure sensing, thermal management, and electromagnetic interference shielding显示文摘Aerogels with regularly porous structure and uniformly distributed conductive networks have received extensive attention in wearable electronic sensors,electromagnetic shielding,and so on.However,the poor mechanical properties of the emerging nanofibers-based aerogels are limited in practical applications.In this work,we developed a synchronous deprotonation–protonation method in the KOH/dimethyl sulfoxide(DMSO)system at room temperature for achieving chitin cross-linked aramid nanofibers(CANFs)rather than chitin nanofibers(ChNFs)and aramid nanofibers(ANFs)separately by using chitin and aramid pulp as raw materials.After freeze-drying process,the cross-linked chitin/aramid nanofibers(CA)aerogel exhibited the synergetic properties of ChNF and ANF by the dual-nanofiber compensation strategy.The mechanical stress of CA aerogel was 170 kPa at 80%compressive strain,increased by 750%compared with pure ChNF aerogel.Similarly,the compressibility of CA aerogel was somewhat improved compared to ANF aerogel.The enhancement verified that the crosslinking reaction between ANF and ChNF during the synchronous deprotonation process was formed.Afterwards,the conductive aerogels with uniform porous structure(CA-M)were successfully obtained by vacuum impregnating CA aerogels in Ti_(3)C_(2)T_(x) MXene solution,displaying low thermal conductivity(0.01 W/(m·K)),high electromagnetic interference(EMI)shielding effectiveness(SE)(75 dB),flame retardant,and heat insulation.Meanwhile,the as-obtained CA-M aerogels were also applied as a pressure sensor with excellent compression cycle stability and superior human motion monitoring capabilities.As a result,the dual-nanofiber based conductive aerogels have great potentials in flexible/wearable electronics,EMI shielding,flame retardant,and heat insulation. | Xinxin Zhang Kunpeng Qian Jianhui Fang Sineenat Thaiboonrod Miao Miao Xin Feng | 2024 | Nano Research2024，17，3： | 0 |
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