|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | The effect of different deformation mechanisms on the chemical structure of anthracite coals显示文摘To study the effect of different deformation mechanisms on the chemical structure of anthracite coals and further understand the correlation between changed chemical structures and coal and gas outburst, ten groups of sub-high-temperature and sub-high-pressure deformation experiments were performed. All samples maintained primary structure, which were collected from the Qudi Mine in the southern Qinshui Basin of China. The samples were analyzed by ultimate analysis, Vitrinite Reflection(VR), Fourier Transform Infrared spectroscopy(FTIR), and Raman spectroscopy both before and after deformation experiments for contrasting. The results showed that the VR values of all samples after experiments were significantly higher than before experiments, which suggested that the metamorphism degree of anthracite coals was increased by deformation. The results also indicated that both temperature and strain rate had significant effects on the chemical structure of anthracite coals. At a high strain rate of 4×10?5 s?1, the deformation of the samples was mainly brittle in which the mechanical energy was transformed mainly into frictional energy. In this situation, all samples developed several distinct fractured surfaces and the change of chemical structures was not obvious. On the contrary, with the decrease of the strain rates, the ductile deformation was dominated and the mechanical energy was mainly transformed into strain energy, resulting in the accumulation of deformation energy confessed by increasing quantity of dislocation and creep in the coal's interior nucleus. The absorption in the aromatic ring groups increased; otherwise the absorption in the aliphatic structures and ether oxygen groups decreased rapidly. During these experiments, CO was collected from two experimental samples. The number of aromatic rings and the structure defects within the two generated gas samples increased and the degree of molecular structure orders decreased. | XU RongTing LI HuiJun HOU QuanLin LI XiaoShi YU LiYe | 2015 | Science China Earth Sciences2015，58，4： | 4 |
| 2 | Investigation on condensable particulate matter emission characteristics in wet ammonia-based desulfurization system显示文摘Particulate matter emissions from ammonia-based wet flue gas desulfurization(AmmoniaWFGD)systems are composed of a filterable particulate matter and a condensable particulate matter(CPM)portion.However,the CPM part has been ignored for a long time,which results in an underestim ation of the aerosol problems caused by Ammonia-WFGD systems.In our research,the characteristics of the CPM that emits from an Ammonia-WFGD system are investigated experimentally for the first time,with the US Environmental Protection Agency Method 202 employed as the primary measurement.The influences of some essential desulfurizing parameters are evaluated based on the experimental data.The results show that CPM contributes about 68.8%to the total particulate matter emission.CPM consists mainly of ammonium sulfates/sulfites,with the organic part accounting for less than 4%.CPM is mostly in the submicron fraction,about 71.1%of which originates from the NH3-H2O-SO2 reactions.The appropriate adjustments for the parameters of the flue gas and the desulfurizing solution can inhibit CPM formation to different extents.This indicates that the parameter optimizations are promising in solving CPM emission problems in Ammonia-WFGD systems,in which the pH adjustment alone can abate CPM emission by around 49%.The opposite variations of the parameters need attention because they can cause tremendous CPM emission increase. | Rongting Huang Hao Wu Linjun Yang | 2020 | Journal of Environmental Sciences2020，32，6： | 4 |
| 3 | Multi-oriented moiré superstructures of graphene on Ir(111): experimental observations and theoretical models显示文摘 | Lei Meng Rongting Wu Lizhi Zhang Linfei Li Shixuan Du Yeliang Wang H-J Gao | 2012 | Journal of Physics: Condensed Matter2012，，： | 1 |
| 4 | Correction factor to dye-measured flow velocity under varying water andsediment discharges 显示文摘 | Zhang Guanghui Luo Rongting Cao Ying | 2010 | Journal of Hydrology2010，389，12： | 1 |
| 5 | The mechanismsof gas generation during coal deformation:Preliminary observations显示文摘 | XU Rongting LI Huijun GUO Chenchen | 2014 | Fuel2014，117，32： | 1 |
| 6 | A study on the uniting process of walnut grafting and the factors affecting显示文摘 | Xi Rongting Ding Pinghai | 1993 | Acta Horticulturae1993，311，： | 1 |
| 7 | Cor- rection factor to dye-measured flow velocity under var- ying water and sediment discharges显示文摘 | Zhang Guanghui Luo Rongting Cao Ying | 2010 | Journal of Hy- drology2010，389，1： | 1 |
| 8 | Correction factor to dye-measured flow velocity under varying water and sediment discharges 显示文摘 | Zhang Guanghui Luo Rongting Cao Ying | 2010 | Journal of Hydrology2010，389，12： | 1 |
| 9 | Effect of remimazolam vs. propofol on hemodynamics during general anesthesia induction in elderly patients: Single-center, randomized controlled trial显示文摘The current study aimed to compare the effects between remimazolam and propofol on hemodynamic stability during the induction of general anesthesia in elderly patients.We used propofol at a rate of 60 mg/(kg·h)in the propofol group(group P)or remimazolam at a rate of 6 mg/(kg·h)in the remimazolam group(group R)for the induction.A processed electroencephalogram was used to determine whether the induction was successful and when to stop the infusion of the study drug.We measured when patients entered the operating room(T_(0)),when the induction was successful(T_(1)),and when before(T_(2))and 5 min after successful endotracheal intubation(T_(3)).We found that mean arterial pressure(MAP)was lower at T_(1–3),compared with T_(0) in both groups,but higher at T_(2) in the group R,whileΔMAP_(T0–T2) andΔMAP_(max) were smaller in the group R(ΔMAP_(T0–T2):the difference between MAP at time point T_(0) and T_(2),ΔMAP_(max):the difference between MAP at time point T_(0) and the lowest value from T_(0) to T_(3)).Cardiac index and stroke volume index did not differ between groups,whereas systemic vascular resistance index was higher at T_(1–3) in the group R.These findings show that remimazolam,compared with propofol,better maintains hemodynamic stability during the induction,which may be attributed to its ability to better maintain systemic vascular resistance levels. | Mingfeng He Chanjuan Gong Yinan Chen Rongting Chen Yanning Qian | 2024 | The Journal of Biomedical Research2024，38，1： | 0 |
| 10 | Construction of poly-naphthalocyanine linked by [4]-radialene-like structures on silver surfaces显示文摘Cyclic-conjugated linkages between planar-macrocydic molecules contribute to the robustness of the two-dimensional (2D) polymerization and extension of π-interactions. The fabrication of such linkages in 2D polymers remains challenging. Combining scanning tunneling microscope (STM) measurements and density functional theory (DFT) calculations, we demonstrate a linear polymerization of metal-free naphthalocyanine (NPc) molecules with [4]-radialene-like linkages on silver surfaces. Experimentally, by depositing NPc molecules on the Ag(110) surface and subsequent annealing up to 750 K, one-dimensional polymers are constructed along the [\(1\overline 1 0\)] direction. High-resolution STM images show a stem-leaf-like feature. STM simulations based on a linear polymer of NPc molecules linked by four-membered carbon rings, [4]-radialene-like structure, agree well with the experimental observations. DFT calculations reveal that the polymerization process includes detaching two-terminal H atoms of NPc molecules along [\(1\overline 1 0\)] direction, then bonding with a neighboring dehydrogenated NPc molecule by forming a four-membered ring. The dehydrogenation process can be promoted by on-surface impurities such as additional H atoms. Similar polymerizations have been achieved on Ag(111) surfaces in an amorphous way. Moreover, the energy gap of the NPc molecule decreases after linear polymerization, suggesting a red-shift for its optical absorption/scattering spectrum. Our study offers a new route to polymerize conjugated molecules with extended planar π-interactions. | Rongting Wu De-Liang Bao Linghao Yan Junhai Ren Yanfang Zhang Qi Zheng Ye-Liang Wang Qing Huan Shixuan Du Hong-Jun Gao | 2021 | Nano Research2021，14，12： | 0 |
| 11 | Degree of polymerisation estimation for insulation paper immersed in silicone oil using frequency domain dielectric spectroscopy显示文摘Frequency domain dielectric spectroscopy(FDS)is an effective method reflecting the changes of ageing status of silicone oil‐immersed insulation paper.For better evaluating the ageing status of silicone oil‐immersed insulation paper,an evaluation method was studied by analysing the ageing kinetic model and results of FDS.First,the method to separate the different polarization losses and conductivity loss from the results of FDS was studied.Then,based on the idea of ageing correction translation coefficient and timevarying pre exponential factor,the zero order ageing dynamic model was modified,which combines the ageing kinetic model with the results of FDS.Finally,the evaluation method for the degree of polymerisation(DP)of silicone oil‐immersed paper was proposed,and experiments were conducted to obtain the parameters in the modified model and then to verify the proposed method.The results show that the proposed method can be used to evaluate the DP effectively. | Lijun Zhou Jun Zhang Zhixin Li Rongting Wen Dongyang Wang Jiekang Wu Huiling Tang | 2023 | High Voltage2023，8，5： | 0 |
| 12 | Study on mutagenic effects of rice seeds irradiated by CO_2 laser显示文摘Seeds of japonica rice (cv. Zhenuo 2) at two different physiotogical states (dry seeds with water content 13% and wet seeds soaked inthe water for 36 h) were irradiated by CO2 laser in four different power-densities. The seeds rradiated by 200GY of ^60Co γ rays and no radiated seeds were used as the controls. | LUO Rongting ZHANG Mingxing Inst for Application of Atomic Energy,Zhejiang Acad of Agri Sci,Hangzhou 310021,China | 1998 | Chinese Rice Research Newsletter1998，6，1： | 0 |
| 13 | Optical,thermal and luminescence properties of La2O3-Ga2O3-ZrO2 glasses co-doped with Tm3+/Yb3+prepared by containerless technique显示文摘Bulk LaO-GaO-ZrO(LGZ)glass and Tm/Ybco-doped LGZ glasses were synthesized successfully using containerless technique.Raman spectra result reveals that the matrix sample possesses the low maximum phonon energy of~642 cm.The glasses show good compatibility between large Abbe numbers(>31)and high refractive indices(n>1.93).Moreover,transmittance measurements reflect that the glasses have high infrared transmittance of-81.9%,small OHabsorption coefficient and long mid-infrared cut-off wavelengths(-7.5μm).The surface morphology of host glass was characterized by scanning electron microscopy(SEM)micrograph and energy dispersive spectroscopy(EDS)tests reflect that the doped compositions are distributed into the matrix glass homogeneously.The results of thermal analysis show that the glasses have good thermal properties(T>769℃).Excited by 980 am laser,an intense 1810 am fluorescence is obtained originating from the transition:~3 E→~3 Hof Tmion,accompanied by upconversion emission.It can be observed that 1810 nm fluorescence has the highest intensity at 1 mol%YbOand owns broad full width at half-maximum(>245 nm),the luminescence intensity of~3 F→~3 Htransition increases with rising temperature from 300 to 550 K.Furthermore,the value of energy transfer efficiency shows that Ybcan transfer energy to Tmeffectively.By fitting the attenuation curves,the lifetimes of 1810 and 474 nm emission can be acquired. | Jiansheng Xie Minghui Zhang Yanzhuo Wang Rongting Guo Ying Shi Xiuhong Pan Xuechao Liu Kun Chen Meibo Tang Feng Wu Zhihong Zhang | 2022 | Journal of Rare Earths2022，40，11： | 0 |
| 14 | Grid graph-based large-scale point clouds registration显示文摘Automatic registration of unordered point clouds is the prerequisite forurban reconstruction. However, most of the existing technologies stillsuffer from some limitations. On one hand, most of them are sensitive tonoise and repetitive structures, which makes them infeasible for theregistration of large-scale point clouds. On the other hand, most of themdealing with point clouds with limited overlaps and unpredictablelocation. All these problems make it difficult for registration technology toobtain qualified results in outdoor point cloud. To overcome theselimitations, this paper presents a grid graph-based point cloud registration(GGR) algorithm to align pairwise scans. First, point cloud is divided into aset of 3D grids. We propose a voting strategy to measure the similaritybetween two grids based on feature descriptor, transforming thesuperficial correspondence into 3D grid expression. Next, a graphmatching is proposed to capture the spatial consistency from putativecorrespondences, and graph matching hierarchically refines thecorresponding grids until obtaining point-to-point correspondences.Comprehensive experiments demonstrated that the proposed algorithmobtains good performance in terms of successful registration rate, rotationerror, translation error, and outperformed the state-of-the-art approaches. | Yi Han Guangyun Zhang Rongting Zhang | 2023 | International Journal of Digital Earth2023，16，1： | 0 |
| 15 | PERIODIC SOLUTIONS TO A KIND OF NEUTRAL DIFFERENTIAL SYSTEM:VIA (h,k)-DICHOTOMY显示文摘In this paper, based on the theory of (h, k)-Dichotomy of linear system and Kras-noselskii's fixed point theorem, we study the existence of periodic solutions to a neutral differential equation. Some new sufficient conditions are obtained to guarantee the existence and uniqueness of T-periodic solution to the equation. | Yongmei Lu, Ninghong Zhao , Rongting Wang, Wenxia Liu (Dept. of Math., Zhejiang Normal University, Jinhua 321004, Zhejiang) | 2012 | Annals of Differential Equations2012，28，2： | 0 |
| 16 | A Study on Phosphorus Use Efficiency of Wheat显示文摘Wheat is one of the most important grain crops in China with great demand. It plays an important role to use phosphorus fertilizer for improving wheat yield. Therefore,application and foundation studies on wheat phosphorus use efficiency are so vital nowadays. Here,we have a simple review on definition of phosphorus use efficiency,response to phosphate starvation in plant,relevant genes cloning,impact factors,screening high phosphorus efficiency genotype and QTL analysis of phosphorus utilization efficiency in wheat. | Yuanyuan YUAN Kai GUO Bei DONG Rongting ZHANG Liwen SUN | 2016 | Asian Agricultural Research2016，8，5： | 0 |
| 17 | Effects of CO_2 laser on chromosomal aberration in the root tip cells of rice | LUO Rongting ZHANG Mingxing SHEN Mei Inst for Application of Atomic Energy,Zhejiang Acad Agri Sci,Hangzhou 310021,China | 1997 | Chinese Rice Research Newsletter1997，5，1： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员