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| 1 | Progress and perspectives in dielectric energy storage ceramics显示文摘Dielectric ceramic capacitors,with the advantages of high power density,fast chargedischarge capability,excellent fatigue endurance,and good high temperature stability,have been acknowledged to be promising candidates for solid-state pulse power systems.This review investigates the energy storage performances of linear dielectric,relaxor ferroelectric,and antiferroelectric from the viewpoint of chemical modification,macro/microstructural design,and electrical property optimization.Research progress of ceramic bulks and films for Pb-based and/or Pb-free systems is summarized.Finally,we propose the perspectives on the development of energy storage ceramics for pulse power capacitors in the future. | Dongxu LI Xiaojun ZENG Zhipeng LI Zong-Yang SHEN Hua HAO Wenqin LUO Xingcai WANG Fusheng SONG Zhumei WANG Yueming LI | 2021 | Journal of Advanced Ceramics2021，10，4： | 16 |
| 2 | Remarkably enhanced dielectric stability and energy storage properties in BNT–BST relaxor ceramics by A-site defect engineering for pulsed power applications显示文摘Lead-free bulk ceramics for advanced pulsed power capacitors show relatively low recoverable energy storage density(Wrec)especially at low electric field condition.To address this challenge,we propose an A-site defect engineering to optimize the electric polarization behavior by disrupting the orderly arrangement of A-site ions,in which Ba_(0.105)Na_(0.325)Sr_(0.245−1.5x)□_(0.5x)Bi_(0.325)+xTiO_(3)(BNS_(0.245−1.5x)□_(0.5x)B_(0.325+x)T,x=0,0.02,0.04,0.06,and 0.08)lead-free ceramics are selected as the representative.The BNS_(0.245−1.5x)□_(0.5x)B_(0.325+x)T ceramics are prepared by using pressureless solid-state sintering and achieve large W_(rec)(1.8 J/cm^(3))at a low electric field(@110 kV/cm)when x=0.06.The value of 1.8 J/cm3 is super high as compared to all other W_(rec) in lead-free bulk ceramics under a relatively low electric field(<160 kV/cm).Furthermore,a high dielectric constant of 2930 within 15%fluctuation in a wide temperature range of 40–350℃is also obtained in BNS_(0.245−1.5x)□_(0.5x)B_(0.325+x)T(x=0.06)ceramics.The excellent performances can be attributed to the A-site defect engineering,which can reduce remnant polarization(P_(r))and improve the thermal evolution of polar nanoregions(PNRs).This work confirms that the BNS_(0.245−1.5x)□_(0.5x)B_(0.325+x)T(x=0.06)ceramics are desirable for advanced pulsed power capacitors,and will push the development of a series of Bi0.5Na0.5TiO3(BNT)-based ceramics with high W_(rec) and high-temperature stability. | Zhipeng LI Dong-Xu LI Zong-Yang SHEN Xiaojun ZENG Fusheng SONG Wenqin LUO Xingcai WANG Zhumei WANG Yueming LI | 2022 | Journal of Advanced Ceramics2022，11，2： | 3 |
| 3 | Structural inference in transition measurement error models for longitudinal data 显示文摘 | PAN Wenqin LIN Xihong ZENG Donglin | 2006 | Biometrics2006，62，： | 1 |
| 4 | The O2-ZmGRAS11 transcriptional regulatory network orchestrates the coordination of endosperm cell expansion and grain filling in maize显示文摘Maize(Zea mays)endosperm filling is coordinated with cell expansion to enlarge the grain size,but the mechanism coupling the two processes is poorly understood.Starchy endosperm cells basically contain no visible vacuoles for cell expansion.During grain filling,efficient synthesis of storage compounds leads to reduced cytoplasm and thus lowered cell turgor pressure.Although bioactive gibberellins(GAs)are essential for cell expansion,they accumulate at a low level at this stage.In this study,we identified an endosperm-specific GRAS domain-containing protein(ZmGRAS11)that lacks the DELLA domain and promotes cell expansion in the filling endosperm.The zmgras11 loss-of-function mutants showed normal grain filling but delayed cell expansion,thereby resulting in reduced kernel size and weight.Overexpression of ZmGRAS11 led to larger endosperm cells and therefore increased kernel size and weight.Consistent with this,ZmGRAS11 positively regulates the expression of ZmEXPB12,which is essential for cell expansion,at the endosperm filling stage.Moreover,we found that Opaque2(O2),a central transcription factor that regulates endosperm filling,could directly bind to the promoter of ZmGRAS11 and activate its expression.Taken together,these results suggest that endosperm cell expansion is coupled with endosperm filling,which is orchestrated by the O2-ZmGRAS11-centered transcriptional regulatory network.Our findings also provide potential targets for maize yield improvement by increasing the storage capacity of endosperm cells. | Chen Ji Lina Xu Yujie Li Yuxin Fu Shuai Li Qiong Wang Xing Zeng Zhongqin Zhang Zhiyong Zhang Wenqin Wang Jiechen Wang Yongrui Wu | 2022 | Molecular Plant2022，15，3： | 1 |
| 5 | Kinetic Mechanism Re- search of an Industrial Hydrocracker Based on Strict Calculation of Stoichiometric Coefficients 显示文摘 | Li Guoqing Xia Yong Zeng Wenqin | 2013 | Fuel2013，103，： | 1 |
| 6 | Role of the Volatile Components in the Anti-insomnia Effect of Jiao-Tai-Wan in PCPA-induced Insomnia Rats显示文摘Background:Jiao-Tai-Wan(JTW)is widely used for insomnia in traditional Chinese medicine.It has been found that berberine in JTW has a potential anti-insomnia effect,but the anti-insomnia effect of volatile oil,which is another major component in JTW,remains unclear.Objective:To comprehensively analyze the anti-insomnia effect of volatile oil through chemical analysis,phar-macological research and network pharmacology methods.Methods:Gas chromatography-mass spectrometry(GC-MS)analysis and network pharmacology platform were used to elucidate the material basis,effect and mechanism of JTW in the treatment of insomnia.A rat model of insomnia induced by p-Chlorophenylalanine(PCPA)was used to verify its anti-insomnia effect.The levels of Melatonin(MT)and Melatonin receptor type 1b(MTNR1B)in the brain and serum of rats were detected by ELISA,Western blot and Real-time PCR methods.Results:Eighteen volatile oil ingredients of JTW were identified by GC-MS,containing six new components which were found in JTW for the first time.Cinnamaldehyde,Behenic alcohol,Tetradecanal,and Gleenol can promote sleep by targeting MTNR1B according to the predicted results of network-pharmacology.Compared with the model group,JTW can increase the level of MTNR1B in rats’prefrontal cortex and brain stem,while reducing the level of MT in rats’brain stem.Conclusion:The volatile oil components,such as Cinnamaldehyde,Tetradecanal,and Gleenol,might also be playing a critical role in the anti-insomnia effect of JTW by target MTNR1B. | Xi Liu Zhengzhong Yuan Congcong Zeng Yan Huang Xie Xu Wenqin Guo Hongbin Zheng Ruanjuan Zhan | 2022 | Clinical Complementary Medicine and Pharmacology2022，2，1： | 0 |
| 7 | Paravertebral fascial massage promotes brain development of neonatal rats via the insulin-like growth factor 1 pathway显示文摘Massage in traditional Chinese medicine can promote body and brain development of premature and normal newborn infants. In the present study, neonatal rats (1 day old) underwent paravertebral fascial massage (15 consecutive days), followed by subcutaneous injection of insulin-like growth factor 1 receptor antagonist, JB1 (9 consecutive days). Paravertebral fascial massage significantly increased insulin-like growth factor 1 expression and cell proliferation in the subventricular zone of the lateral ventricle and dentate gyrus of the hippocampus. However, JB1 inhibited this increase. Results suggest that paravertebral fascial massage can promote brain development of neonatal rats via the insulin-like growth factor 1 pathway. | Zhongqiu Wen Wenqin Zeng Jingxing Dai Xin Zhou Chun Yang Fuhua Duan Yufeng Liu Huiying Yang Lin Yuan | 2012 | Neural Regeneration Research2012，7，15： | 0 |
| 8 | BS_(0.5)BNT-based relaxor ferroelectric ceramic/glass-ceramic composites for energy storage显示文摘Relaxor ferroelectric ceramics have very high dielectric constant(e)but relatively low electrical breakdown strength(Eb),while glass-ceramics exhibit higher E,due to the more uniformly dispersed amorphous phases and submicrocrystals/nanocrystals inside.How to effectively combine the advantages of both relaxor ferroelectric ceramics and glass-ceramics is of great significance for the development of new dielectric materials with high energy storage performance.In this work,we firstly prepared BaO-SrO-Bi_(2)O_(3)-Na_(2)0-TiO_(2)-Al_(2)O_(3)-SiO_(2)(abbreviated as GS)glass powders,and then fabricated(Ba_(0.3)Sr_(0.7))_(0.5)(Bi_(0.5)Na_(0.5))_(0.5)TiO_(3)+x wt%GS ceramic composites(abbreviated as BSo.sBNT-xGS,x=0,2,6,10,14,16,and 18).Submicrocrystals/nanocrystals with a similar composition to BSo.sBNT were crystalized from the glass,ensuring the formation of uniform core-shell structure in BSo.sBNT-xGS relaxor ferroelectric ceramic/glass-ceramic composites.When the addition amount of GS was 14 wt%,the composite possessed both high&r(>3200 at 1 kHz)and high E,(~170 kV/cm)at room temperature,and their recoverable energy storage density and efficiency were Wrec=2.1 J/cm’and n=65.2%,respectively.The BSo.sBNT-14GS composite also had several attractive properties such as good temperature,frequency,cycle stability,and fast charge-discharge speed.This work provides insights into the relaxor ceramic/glass-ceramic composites for pulsed power capacitors and sheds light on the utilization of the hybrid systems. | Xuhai Shi Kai Li Zong-Yang Shen Junqi Liu Chaoqun Chen Xiaojun Zeng Bo Zhang Fusheng Song Wenqin Luo Zhumei Wang Yueming Li | 2023 | Journal of Advanced Ceramics2023，12，4： | 0 |
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