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| 1 | Preparation and Characterization of Mesophase Pitch via Co-Carbonization of Waste Polyethylene/Petroleum Pitch显示文摘The low-cost petroleum pitch and waste polyethylene(WPE) were used as raw materials to prepare the mesophase pitch by co-carbonization method and the forming mechanization of mesophase pitch was also investigated.Polarized microscopy,softening point,Fourier transform infrared spectroscopy(FTIR)and thermogravimetric analysis(TGA) were used to characterize and analyze the properties and structure of the mesophase pitch.The results showed that the carbonization yield of the modified pitch was high when 1-2 wt%WPE was added and the property of mesophase pitch(MP1-450-4 and MP2-450-4)prepared by thermal polymerization was excellent.Moreover,when the treatment temperature was above 420℃,the mesophase development of the modified pitch may be entire and 100%streamline texture mesophase can form.During the co-carbonization of WPE/petroleum pitch,a large number of naphthenic structures and methylene bridges may be generated,which can improve the properties of the obtained mesophase pitch. | Youliang Cheng Lu Yang Tao Luo Changqing Fang Jian Su Jian Hui | 2015 | Journal of Materials Science & Technology2015，31，8： | 3 |
| 2 | Biomechanical change of lumbar unilateral graded facetectomy and strategies of its microsurgical reconstruction:report of 23 cases显示文摘评估腰部的稳定性和单方的 facetectomy 的主要临床的结果的目的, transforaminal 腰部的 interbody 熔化(TLIF ) 和由 X 试管的单方的小花梗螺丝钉固定系统。方法五人的腰部的 cadaveric 功能的脊骨单位(FSU ) 被 0 获得并且分级 facetectomy, 1/4, 1/2, 3/4 和 4/4 在他们的左关节的过程上分别地被执行。这 5 个模型的稳定性在屈曲,延期,侧面的弯曲和轴的旋转被评估。在 biomechanical 研究的一个连续剧以后,到在我们的部门的 2006 年 3 月的从 2004 年 6 月的 23 个病人经历了单方的 facetectomy, transforaminal 腰部的 interbody 熔化(以后的腰部的 interbody 熔化) 和由 X 试管的单方的小花梗螺丝钉乐器学系统。在一般麻醉以后,与荧光检查并且用 X 试管系统的指南,单方的内视镜的 facetectomy 的过程,针的神经根解压缩, autologus 多孔的骨头移植,一个笼子倾斜的插入和单方的小花梗螺丝钉乐器学被执行。在那里的结果不是在屈曲,延期,在单方的分级的 facetectomy 以后的侧面的弯曲和腰部的运动范围的轴的旋转的重要差别。当时,左 / 权利的轴的方向的稳定性极大地被影响分级的 facetectomy 的范围超过 1/2。根据 Nakai 标准,为 23 个病人,临床的结果在 15 是优秀的(65.2%) ,在 6 好(26.1%) 并且在 2 的交易会(8.7%) 。熔化率在优秀、好的盒子中是 95.6% 。尽管骨头接枝的部分吸收在可能显示失败的熔化的 1 种情况中被观察,没有松开,仪器和没有临床的症状的代替发生了。当分级的 facetectomy 的范围超过 1/2 时,腰部的稳定性将显著地被影响的结论。单方的 facetectomy 的过程, transforaminal 腰部的 interbody 熔化和单方的小花梗螺丝钉固定是为 microsurgical 重建的可选的策略,不过,过程的指示应该小心地被限制。 | Zhou Yue Luo Gang Chu Tongwei Wang Jian Li Changqing Zheng Wenjie Zhang Zhengfeng Hao Yong Zhang Chao | 2008 | Journal of Medical Colleges of PLA(China)2008，23，2： | 2 |
| 3 | Optimal joint relay selection and resource allocation with QoS constraints in multiuser OFDM-based cellular networks显示文摘 | Chen Dan Ji Hong Li Xi Luo Changqing | 2011 | High Technology Letters2011，17，3： | 2 |
| 4 | Cross-layer Design for TCP Performance Improvement in Cognitive Radio Networks 显示文摘 | Changqing Luo Hong Ji | 2010 | IEEE Transactions on Vehicular Technology2010，59，5： | 1 |
| 5 | Cross-layer Design for TCP Performance Improvement in Cognitive Radio Networks显示文摘 | Luo Changqing Yu F R Ji Hong | | 0，，05： | 1 |
| 6 | Boosting High-Voltage and Ultralong-Cycling Performance of Single-Crystal LiNi_(0.5)Co_(0.2)Mn_(0.3)O_(2) Cathode Materials via Three-in-One Modification显示文摘LiNi_(0.5)Co_(0.2)Mn_(0.3)O_(2) is extensively researched as one of the most widely used commercially materials for Li-ion batteries at present.However,the poor high-voltage performance(≥4.3 V)with low reversible capacity limits its replacement for LiCoO_(2) in high-end digital field.Herein,three-in-one modification,Na-doping and Al_(2)O_(3)@Li_(3)BO_(3) dual-coating simultaneously,is explored for single-crystalline LiNi_(0.5)Co_(0.2)Mn_(0.3)O_(2)(N-NCM@AB),which exhibits excellent high-voltage performance.N-NCM@AB displays a discharge-specific capacity of 201.8 mAh g^(−1) at 0.2 C with a high upper voltage of 4.6 V and maintains 158.9 mAh g^(−1) discharge capacity at 1 C over 200 cycles with the corresponding capacity retention of 87.8%.Remarkably,the N-NCM@AB||graphite pouch-type full cell retains 81.2% of its initial capacity with high working voltage of 4.4 V over 1600 cycles.More importantly,the fundamental understandings of three-in-one modification on surface morphology,crystal structure,and phase transformation of N-NCM@AB are clearly revealed.The Na+doped into the Li–O slab can enhance the bond energy,stabilize the crystal structure,and facilitate Li+transport.Additionally,the interior surface layer of Li^(+)-ions conductor Li_(3)BO_(3) relieves the charge transfer resistance with surface coating,whereas the outer surface Al_(2)O_(3) coating layer is beneficial for reducing the active materials loss and alleviating the electrode/electrolyte parasite reaction.This three-in-one strategy provides a reference for the further research on the performance attenuation mechanism of NCM,paving a new avenue to boost the high-voltage performance of NCM cathode in Li-ion batteries. | Bao Zhang Jixue Shen Qi Wang Changqing Hu Bi Luo Yun Liu Zhiming Xiao Xing Ou | 2023 | Energy & Environmental Materials2023，6，1： | 1 |
| 7 | Evaluation of the proliferation and differentiation behaviors of mesenchymalstem cells with partially converted borate glass containing different amountsof strontium in vitro显示文摘 | Yi Zhu Yuanming Ouyang Yi Chang Congfeng Luo Jun Xu Changqing Zhang Wenhai Huang | 2013 | Molecular Medicine Reports2013，，4： | 1 |
| 8 | Cross-Layer Design for TCP Perfonmnce Improvement in Cognitive Radio Networks 显示文摘 | LUO Changqing YU F R JI Hong et at | 2010 | IEEE Transactions on Vehicular Technology2010，59，5： | 1 |
| 9 | Prediction of the mechanical properties of the post-forged Ti–6Al–4V alloy using fuzzy neural network显示文摘 | Weixin Yu M.Q. Li Jiao Luo Shaobo Su Changqing Li | 2010 | Materials and Design2010，，7： | 1 |
| 10 | Clinical prognostic sig- nificance of heart abnormality and heart rate variability in patients with stroke显示文摘 | HE Lanying LI Changqing LUO Yong etal | 2010 | Neurological Research2010，32，5： | 1 |
| 11 | Controlled Synthesis of NaV_6O_(15) Nanorods with High Reversible Capacity and Excellent Cycling Stability显示文摘In this work, we demonstrate an effective method to improve capacitive performance of NaV_6O_(15) intrinsically by annealing. NaV_6O_(15) nanorods(NRs) prepared by a simple annealing treatment exhibit significantly improved electrochemical performance compared with the untreated NaV_6O_(15) electrode, and yield a high specific capacitance(402.8 F/g at 300 mA/g). Furthermore, the annealing treated nanorods show excellent rate capability and cycling stability(ca. 80% capacitance retention after 1000 cycles at a scan rate of100 mV/s). Our results have confirmed that the annealing treatment has great influence on the capacitive performance of NaV_6O_(15), which may be attributed to the intrinsic three dimensional(3D) tunneled structures of NaV_6O_(15), and NR morphology. These findings may further broaden the application of NaV_6O_(15)-based materials for high performance supercapacitors(SCs), aqueous rechargeable lithium batteries and Li-ion capacitors. | Taotao Ding Juan Xu Cheng Chen Zhongwei Luo Jiangnan Dai Yu Tian Changqing Chen | 2017 | Journal of Materials Science & Technology2017，33，3： | 1 |
| 12 | Contact binaries:I.An inspection of the HSB contact binary model by comparison of relationships obtained from theoretical light curves with that from astronomical observations显示文摘The light curve is one of the most important photometric characteristics of variable stars,which can supply physical information about many stars.So,light curves are the best candidate to inspect a theoretical model of binaries.One important feature of the light curve is the difference of two light minima of the light curve,namely the difference between the primary eclipse depth and the secondary eclipse depth(DED).In this paper,the secondary eclipse depths of theoretical and observational light curves are studied.Firstly,a method to calculate the theoretical light curves of an eclipsing binary with non-spherical components is proposed,which can be put into the HSB contact binary model [Huang R Q,et al.Chin J Astron Astrophys,2007,7:235-244;Song H F,et al.Chin J Astron Astrophys,2007,7:539-550].Theoretical light curves and the DED of the binary can be obtained at every evolutionary phase.The relationships of DED with mass and luminosity are presented and show special features for the contact binaries.Secondly,a large amount of observational data is collected,from which 11 massive,intermediate-mass contact binaries and 9 low-mass contact binaries are chosen and the two relationships are obtained using theoretical light curves.Finally,in order to check whether the HSB contact binary model can be used in contact binary systems with massive,intermediate-mass and low-mass components,a comparison is performed for the above mentioned relationships obtained from theoretical light curves with those from the astronomical observations.The results show a good agreement for contact binary systems with all different masses. | LUO ChangQing HUANG RunQian | 2012 | Science China(Physics,Mechanics & Astronomy)2012，55，3： | 1 |
| 13 | Financial distress prediction based on SVM and MDA methods : the case of Chinese listed com- panies 显示文摘 | Xie Chi Luo Changqing Yu Xiang | 2011 | Quality and Quantity2011，45，3： | 1 |
| 14 | Injectable cartilage matrix hydrogel loaded with cartilage endplate stem cells engineered to release exosomes for non-invasive treatment of intervertebral disc degeneration显示文摘Low back pain,mainly caused by intervertebral disc degeneration(IVDD),is a common health problem;however,current surgical treatments are less than satisfactory.Thus,it is essential to develop novel non-invasive surgical methods for IVDD treatment.Here,we describe a therapeutic strategy to inhibit IVDD by injecting hydrogels modified with the extracellular matrix of costal cartilage(ECM-Gels)that are loaded with cartilage endplate stem cells(CESCs).After loaded with CESCs overexpressing Sphk2(Lenti-Sphk2-CESCs)and injected near the cartilage endplate(CEP)of rats in vivo,ECM-Gels produced Sphk2-engineered exosomes(Lenti-Sphk2-Exos).These exosomes penetrated the annulus fibrosus(AF)and transported Sphk2 into the nucleus pulposus cells(NPCs).Sphk2 activated the phosphatidylinositol 3-kinase(PI3K)/p-AKT pathway as well as the intracellular autophagy of NPCs,ultimately ameliorating IVDD.This study provides a novel and efficient non-invasive combinational strategy for IVDD treatment using injectable ECM-Gels loaded with CESCs that express Sphk2 with sustained release of functional exosomes. | Liwen Luo Junfeng Gong Zhouguang Wang Yao Liu Jiaming Cao Jinghao Qin Rui Zuo Hongyu Zhang Shuai Wang Ping Zhao Di Yang Mengjie Zhang Yanqiu Wang Junfeng Zhang Yue Zhou Changqing Li Bing Ni Zhiqiang Tian MingHan Liu | 2022 | Bioactive Materials2022，7，9： | 1 |
| 15 | Telomere-to-telomere genome of the allotetraploid legume Sesbania cannabina reveals transposon-driven subgenome divergence and mechanisms of alkaline stress tolerance显示文摘Alkaline soils pose an increasing problem for agriculture worldwide,but using stress-tolerant plants as green manure can improve marginal land.Here,we show that the legume Sesbania cannabina is very tolerant to alkaline conditions and,when used as a green manure,substantially improves alkaline soil.To understand genome evolution and the mechanisms of stress tolerance in this allotetraploid legume,we generated the first telomere-to-telomere genome assembly of S.cannabina spanning~2,087 Mb.The assembly included all centromeric regions,which contain centromeric satellite repeats,and complete chromosome ends with telomeric characteristics.Further genome analysis distinguished A and B subgenomes,which diverged approximately 7.9 million years ago.Comparative genomic analysis revealed that the chromosome homoeologs underwent large-scale inversion events(>10 Mb)and a significant,transposon-driven size expansion of the chromosome 5A homoeolog.We further identified four specific alkali-induced phosphate transporter genes in S.cannabina;these may function in alkali tolerance by relieving the deficiency in available phosphorus in alkaline soil.Our work highlights the significance of S.cannabina as a green tool to improve marginal lands and sheds light on subgenome evolution and adaptation to alkaline soils. | Haofei Luo Xiaofei Wang Changqing You Xuedan Wu Duofeng Pan Zhiyao Lv Tong Li Dongmei Zhang Zhongbao Shen Xiaodong Zhang Guodao Liu Kaixuan He Qingtong Ye Yajun Jia Qinghua Zhao Xian Deng Xiaofeng Cao Xianwei Song Gai Huang | 2024 | Science China(Life Sciences)2024，67，1： | 0 |
| 16 | Biomimetic asymmetric catalysis显示文摘Enzymes are the core for biological transformations in nature.Their structures and functions have drawn enormous attention from biologists as well as chemists since last century.The large demand of bioactive molecules and the pursuit of efficiency and greenness of synthesis have spurred the rapid development of biomimetic chemistry in the past several decades.Biomimetic asymmetric catalysis,mimicking the structures and functions of enzymes,has been recognized as one of the most promising synthetic strategies for the synthesis of valuable chiral compounds.This review summarizes the evolution of asymmetric catalysis inspired by aldolases,vitamin B_(1)/B_(6)-dependent enzymes,NAD(P)H,flavin,hydrogenases,heme oxygenases,nonheme oxygenases,and dinuclear/multinuclear metalloenzymes in aspects of biomimetic design,catalyst development and related catalytic transformations.Those well-established synthetic approaches originating from biological reactions have demonstrated the unique prowess of biomimetic asymmetric catalysis in bridging the gap between bio-catalysis and chemical synthesis. | Xiao Xiao Kaini Xu Zhong-Hua Gao Zhou-Hao Zhu Changqing Ye Baoguo Zhao Sanzhong Luo Song Ye Yong-Gui Zhou Senmiao Xu Shou-Fei Zhu Hongli Bao Wei Sun Xiaoming Wang Kuiling Ding | 2023 | Science China Chemistry2023，66，6： | 0 |
| 17 | Reconstruction of protoliths of metamorphic rocks and tectonic setting of Wolegen Group显示文摘Parametamorphic rocks from Arong County in southeastern Inner Mongolia-Daxinganling district are regarded as Proterozoic in age,belonging to the Wolegen Group and composed of volcanoclastic and sandstone in origin,and have been disputed in tectonic setting.Because of the stability in metamorphism,the rare earth elements indicate the features of their protoliths.The authors integrated the petrologic methods with the geochemical parameters which include ∑REE,∑LREE/∑HREE,δCe,δEu,La/Yb,Sm/Nd,Th/Sc and the standard values of chondrite.The results show that the protoliths of Wolengen Group may be a group of volcanoclastic and continental margin clastic rocks,and their tectonic setting is the continent island arc. | Lizhi LUO Wei JIN Changqing ZHENG Xianli YANG | 2007 | Global Geology2007，10，1： | 0 |
| 18 | Contact binaries:Ⅱ.The importance of deformation caused by rotation and tides to the light curve of a contact binary显示文摘The theoretical light curves of contact binaries are calculated with and without putting in the contact binary evolution model.Firstly,we do not use the contact binary evolution model.A comparison of the light curve is performed with and without the deformation caused by rotation and tides.It shows that the light curve presents many differences,especially on the bottom and top.Secondly,we adopt the contact binary model [Huang R Q,et al.Chin J Astron Astrophys,2007,7:235-244;Song H F,et al.Chin J Astron Astrophys,2007,7:539-550] and compute the theoretical light curve with and without rotational and tidal effects by studying three binary systems(with low-,intermediate-and high-mass components).The bottom and top of the theoretical light curves are discussed and compared to observations.The results show that taking into account the rotational effect has a better agreement with observations than without it.Therefore,the deformation of the light curve of contact binaries caused by rotation and tides is very important.Meanwhile,the rotational and tidal effect can advance the start of the semi-detached,contact phase and the time of mass-reversal. | LUO ChangQing HUANG RunQian | 2012 | Science China(Physics,Mechanics & Astronomy)2012，55，5： | 0 |
| 19 | Analysis of Wellbore Flow in Shale Gas Horizontal Wells显示文摘Theflow behavior of shale gas horizontal wells is relatively complex,and this should be regarded as the main reason for which conventional pipeflow models are not suitable to describe the related dynamics.In this study,numerical simulations have been conducted to determine the gas-liquid distribution in these wells.In particular,using the measuredflow pressure data related to 97 groups of shale gas wells as a basis,9 distinct pipeflow models have been assessed,and the models displaying a high calculation accuracy for different water-gas ratio(WGR)ranges have been identified.The results show that:(1)The variation law of WGR in gas well satisfies a power function relation.(2)The well structure is the main factor affecting the gas-liquid distribution in the wellbore.(3)The Beggs&Brill,Hagedorn&Brown and Gray models exhibit a high calculation accuracy. | Linjuan Zeng Daogang Cai Yunhai Zhao Changqing Ye Chengcheng Luo | 2023 | Fluid Dynamics & Materials Processing2023，19，11： | 0 |
| 20 | An efficient broadband coupled-mode model using the Hamiltonian method for modal solutions显示文摘A numerically efficient broadband, range-dependent propagation model is proposed, which incorporates the Hamiltonian method into the coupled-mode model DGMCM. The Hamiltonian method is highly efficient for finding broadband eigenvalues, and DGMCM is an accurate model for range-dependent propagation in the frequency domain. Consequently, the proposed broadband model combining the Hamiltonian method and DGMCM has significant virtue in terms of both efficiency and accuracy. Numerical simulations are also provided. The numerical results indicate that the proposed model has a better performance over the broadband model using the Fourier synthesis and COUPLE, while retaining the same level of accuracy. | XueFeng Yang WenYu Luo HaoZhong Wang ChangQing Hu | 2017 | Science China(Physics,Mechanics & Astronomy)2017，60，9： | 0 |
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