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| 1 | Mesoproterozoic age for Xiamaling Formation in North China Plate indicated by zircon SHRIMP dating显示文摘Zircon grains of magmatic origin from tuffite layers in the Xiamaling Formation at Zhaojiashan Village, Xuanhua area, Hebei Province, were used for zircon dating with a Sensitive High-Resolution Ion Microprobe (SHRIMP II), which gives a weighted mean 207Pb/206Pb age of 1366±9 Ma. It shows a very similar age (1368±12 Ma) as the zircon dating from the Xiamaling Formation in Western Hill, Beijing. This age proposes that the Xiamaling Formation in the North China plate should be of Mesoproterozoic, instead of Neoproterozoic based on K-Ar, Ar-Ar dating. The new zircon age also indicates the devel- opment of macrofossils algae from the Mesoproterozoic age. | GAO LinZhi ZHANG ChuanHeng SHI XiaoYing SONG Biao WANG ZiQiang LIU YaoMing | 2008 | Chinese Science Bulletin2008,53,17: | 68 |
| 2 | Octoradiate Spiral Organisms in the Ediacaran of South China显示文摘摘要:华南的 Ediacaran Doushantuo 形成的页岩包含新扁圆形 macrofossil, Eoandromeda octobrachiata,用可能是在外部膜以内的 housed 的八只螺线手臂描绘了。尽管八放射的结构的存在必要相似到 cnidarian octocorals 以及到栉水母,与这些现存的组一起的直接相同是不大可能的。相反,我们从 Doushantuo 形成把注意带到最新报导的胚胎的 helicospiral 形态学,建议 Ediacaran 胚胎的 metazoans 的长寻求的成年人最后被发现了。 | TANG Feng YIN Chongyu Stefan BENGTSON LIU Pengju WANG Ziqiang GAO Linzhi | 2008 | Acta Geologica Sinica(English Edition)2008,82,1: | 29 |
| 3 | A new discovery of macroscopic fossils from the Ediacaran Doushantuo Formation in the Yangtze Gorges area显示文摘Two new horizons with macroscopic fossils are reported in the Doushantuo Formation, Ediacaran System, from the Yangtze Gorges area. The fossils were discovered in the lower and middle black shales of the Doushantuo Formation in the new section at Sandouping Town, Zigui County, Hubei Province. The new macroscopic assemblages in- clude Chuaria and Tawuia, and occur below the well- known ”Miaohe Biota”. These fossils indicate that after the Nantuo ice age, macroscopic multicellular organisms gradually increased in abundance and diversity. Simple, discoidal carbonaceous compres- sions such as chuarids are present in the initial macrofossil assemblage of the Doushantuo Stage. This assemblage was eventually replaceded by the more diverse Miaohe macrofossils, including unam- biguously branching forms, in the uppermost Dou- shantuo Formation. The new discovery of carbona- ceous compression macrofossils from the Doushan- tuo Formation in the Yangtze Gorges area provides new evidence for the correlation of late Neoprotero- zoic successions in southern China. | TANG Feng YIN Chongyu Bengtson Stefan LIU Yongqing WANG Ziqiang LIU Pengju GAO Linzhi | 2006 | Chinese Science Bulletin2006,51,12: | 23 |
| 4 | Survival of people living with HIV after treatment with Traditional Chinese Medicine in Henan province of China: a retrospective cohortstudy显示文摘OBJECTIVE: To provide survival estimates of people living with human immunodeficiency virus(PLHIV) after treatment with Traditional Chinese Medicine(TCM) in rural China, to identify the prognostic factors at enrollment, and to explore the effectiveness of TCM intreating PLHIV.METHODS: PLHIV who enrolled in national TCM HIV treatment trial program in October 2004 were analyzed in this study and followed up to October 2010. Survival time was estimated by the Kaplan-Meier curve and hazard ratios, and identifying prognostic factors were computed through Cox proportional hazard models.RESULTS:A total of 1666 PLHIV were included with 102 591 person-months of follow-up. Overall, 312(18.7%) patients died. The total mortality rate over the study period was 3.6 per 100 person-years,which was lower than the worldwide rate. The cumulative survival rate was 95.9% at 1 year[95% confidence interval(CI)(94.8-96.8)] and 80.4% at 6years [95% CI(78.4-82.3)]. Elevated death risks emerged among males, older individuals, and thosewithlowerCD4+T-cellcounts.CONCLUSION: TCM could increase survival and lengthen the life span of PLHIV in Henan province of China, as shown by our retrospective cohort study. Factors such as sex, age, education, and CD4+ T-cell counts correlated to survival. However,retrospective cohorts bias the data, so more prospective studies should be performed to confirm our primary results. | Yantao Jin Zhibin Liu Xiumin Chen Xin Wang Dan Wang Ziqiang Jiang Ying Liu Jian Wang Wen Zou Huijun Guo Liran Xu | 2014 | Journal of Traditional Chinese Medicine2014,34,4: | 8 |
| 5 | Reduning injection for fever, rash, and ulcers in children with mild hand, foot, and mouth disease: a randomized controlled clinical study显示文摘OBJECTIVE: To assess the efficacy and safety of Reduning injection for fever, rash, and ulcers in children with mild hand, foot, and mouth disease(HFMD). METHODS: A stratified-block randomized, double-blind, parallel-controlled, and multicenter clinical trial was conducted with 360 patients in five hospitals across China: Quanzhou Children's Hospital, Shijiazhuang No. 5 Hospital, Shanghai Public Health Centre, Hunan Provincial Children's Hospital, and Kaifeng Children's Hospital. Patients were randomized into three groups with 120 in each. Group A was treated with Western Medicine, group B with Reduning injection, a Chinese herbal medicine, and group C with both Reduning injection and Western Medicine. Results were compared for treatment efficacy and safety on HFMD. The clinical outcomes were observed as follows: fever and onset time of antifebrile effect(time to bring the body temperature down ≥0.5℃ after medication); cumulative time for fever recovery(body temperature recovering to normal and lasting more than 24 h without medication); cumulative time for rash disappearance(without new rashes or ulcers appearing and the original ones fading away); and cumulative time for mouth ulcer disappearance. RESULTS: For the onset time of the antifebrile effect, there was no statistical difference between groups A and B(P>0.05) and groups B and C(P> 0.05). However, there was a statistical difference between groups A and C(P<0.05), and the effect in group C was the best. For the cumulative time for rash disappearance, there was no statistical difference between groups A and B(P>0.05). There were statistical differences between groups A and C, and groups B and C(P<0.05), and the effect in group C was the best. For the cumulative time for mouth ulcers disappearance, there were no statistical differences among the three groups(P>0.05). CONCLUSION: Reduning injection with Western Medicine for symptomatic treatment is most effective for mild HFMD. No adverse reactions were observed. | Guoliang Zhang Jie Zhao Liyun He Shiyan Yan Ziqiang Zhuo Haojie Zheng Yongping Mu Shuangjie Li Xi Zhang Jihan Huang Xiuhui Li Jianping Liu Hehe Wan Chaoyu Wei Wei Xiao | 2013 | Journal of Traditional Chinese Medicine2013,33,6: | 7 |
| 6 | Acanthomorph Biostratigraphic Succession of the Ediacaran Doushantuo Formation in the East Yangtze Gorges,South China显示文摘大 acanthomorphic acritarchs 在华南在几个地区在 Ediacaran Doushantuo 形成的燧石被发现了,包括湖北省的东方 Yangtze 峡,贵州省的 Weng'an 区域,并且在其它地方。然而,他们为 biostratigraphic 分和 Ediacaran 继任的关联的潜力被外形控制, taphonomic 偏爱,和分类问题限制。在 Yangtze 峡, Doushantuo 形成通常被细分进四个 lithologic 成员。在 Weng'an 区域,然而, Doushantuo 形成包括就 mid-Doushantuo erosional 表面分开的更低、上面的部分。在在 Zhangcunping 节的 Yangtze 峡, Doushantuo 继任在 Weng'an 类似于那。到目前为止,在 Yangtze 之间的关联塞满并且 Weng'an 区域,并且在其它地方是争论的一个问题。解决争论,我们在 Yangtze 峡区域选择了八节并且全身地取样了 Doushantuo 形成的燧石小瘤,特别地集中于上面的 Doushantuo 形成。我们的数据证实在第二和第三个成员独立出现的二个不同集合,它被一次否定 13C 旅行(EN2 ) 分开。更低的集合被 Tianzhushania 和大 acanthomorphic acritarchs 的一间多样的套房描绘。上面的集合与更低的集合被区分开来,由(1 ) Tianzhushania 的缺席;(2 ) 出现丰富, 100150 m,光滑墙的球形的微化石;(3 ) 包括种类在这个成员从第二个成员和新形式延长的高度多样的 acanthomorphic acritarchs 的出现;(4 ) 原生生物的未命名的新形式的出现;并且(5 ) 管状的微化石 Sinocyclocylicus guizhouensis 的出现。因为统治 Tianzhushania 的集合不是在澳大利亚的现在,看起来仅仅上面的 acanthomorph 集合是在场的,因此,更低的 Doushantuo acanthomorph 集合在澳大利亚失踪。 | YIN Chongyu LIU Pengju Stanley M. AWRAMIK CHEN Shouming TANG Feng GAO Linzhi WANG Ziqiang Leigh A. RIEDMAN | 2011 | Acta Geologica Sinica(English Edition)2011,85,2: | 6 |
| 7 | Isolation and identification of genes expressed differentially in rice inflorescence meristem with suppression subtractive hybridization显示文摘A subtracted cDNA library of rice (Oryza sativa L.) inflorescence meristem (IM) was constructed using the suppression subtractive hybridization (SSH) method. The cDNAs of the rice shoot apical meristem (SAM) were used as 'driver' and inflorescence meristem (IM) as 'tester' in the experiment, respectively. Forty of 250 randomly chosen cDNA clones were identified by differential screening, which were IM-specific or IM-highly expressed. Most of the rice IM cDNAs cloned by SSH appear to represent rare transcripts, 40% of which were derived from truly differentially expressed genes. Of all the forty sequenced cDNA inserts, eleven contain the regions with 60%-90% identity to their homolog in GenBank, eighteen are expected to be new genes, only two correspond to published rice genes. | Jun Liu Jiandong Liu Ziqiang Yuan Xiaoyin Qian Min Qian Jinshui Yang | 2001 | Chinese Science Bulletin2001,46,2: | 5 |
| 8 | Reliability and validity of dermatology life quality index: assessment of quality of life in human immunodeficiency virus/acquired immunodeficiency syndrome patients with pruritic papular eruption显示文摘OBJECTIVE: To test the reliability and validity of dermatology life quality index(DLQI) in simplified Chinese language by assessing the quality of life(QoL) in HIV(human immunodeficiency virus)/AIDS(Acquired immunodeficiency syndrome) patients with pruritic papular eruption(PPE). METHODS: A study of simplified-Chinese-versiond from10 questions with the principal component analysis and the contribution rate of the 3 common factors was 59.95%. CONCLUSION: The simplified-Chinese-version DIQL is an acceptable and valid scale for HIV/AIDS patients with PPE. It can be used to evaluate the QoL of HIV/AIDS patients with PPE in China. | Zhibin Liu Zheng Xie Li Zhang Yantao Jin Huijun Guo Ziqiang Jiang Xiumin Chen Jun Yuan | 2013 | Journal of Traditional Chinese Medicine2013,33,5: | 5 |
| 9 | Comparison of predicting drag methods using computational fluid dynamics in 2d/3d viscous flow显示文摘As a result of the necessity of aircraft engineering design and the progress of computational fluid dynamics (CFD), techniques of accurately predicting aero- dynamic drag are being increasingly explored. According to the momentum bal- ance, the drag can be represented by an integral over a cross-flow plane (called wake integration method) at an arbitrary distance behind the configuration. A for- mulation to reduce the size of the wake cross plane region required for calculating the drag is developed by using cutoff parameters of vorticity and entropy. This in- creases the calculation accuracy and decreases the computation time required. Numerical experiments are made to obtain the threshold values of these cutoff pa- rameters. The wake integration method is applied to predict drags of some exam- ples including airfoil, a variety of wings and wing-body combination. Numerical results are compared with those of traditional surface integration method, showing that the predicting drag values with the wake integration method are closer to the experimental data. The results also show that drag prediction within engineering accuracy is possible by using CFD and the numerical drag optimization of complex aircraft configurations is possible, too. | ZHU ZiQiang WANG XiaoLu LIU Jie LIU Zhou | 2007 | Science China(Technological Sciences)2007,50,5: | 4 |
| 10 | Great progress in developing 500 MHz single cell superconducting cavity in China显示文摘Superconducting cavities have been adopted in many kinds of accelerator facilities such as synchrotron radiation light source, hard X-ray free electron laser linac, colliders and energy recovery linacs (ERL). The 500 MHz superconducting cavities will be a candidate to be installed in the high current accelerators and high current ERLs for their large beam aperture, low higher order modes impedance and high current threshold value. This paper presents great progress in the whole sequence of developing 500 MHz superconducting cavity in China. It describes the first in-house successful development of 500 MHz single cell superconducting cavity including the deep-drawing of niobium half cells, electron beam wielding of cavity, surface preparations and vertical testing. The highest accelerating gradient of the fabricated cavity #SCD-02 higher than 10 MV/m was obtained while the quality factor was better than 4×108 at 4.2 K, which has reached the world level of the same kind of cavities. | LIU JianFei HOU HongTao MAO DongQing FENG ZiQiang MA ZhenYu LUO Chen ZHAO ShenJie ZHAO YuBin YU HaiBo YIN Bo ZHANG ZhiGang ZHENG Xiang LI Zheng | 2011 | Science China(Physics,Mechanics & Astronomy)2011,54,S2: | 4 |
| 11 | Phragmites australis and Typha orientalis in removal of pollutant in Taihu Lake, China显示文摘Two plant populations of Phragmites australis and Typha orientalis grown in gravel and sediment substrate were studied to assess their capabilities for purifying polluted water in Taihu Lake, China. The substrate displayed most significant effects on the suspended matter (P < 0.01), with the reduction of 76%-87% and 52%-63% for P. australis, and 83%-86% and 45%-62% for T. orientalis in gravel substrate and sediment substrate, respectively. Both species and substrates significantly decreased the N and P concentrations of water body (P < 0.01). P. australis showed higher total N and P concentrations in tissues than T. orientalis and had a greater potential to remove nutrients from the lake. Phosphate was easily to concentrate in the belowground tissues, while nitrate concentration was higher in leaf and stalk. Therefore, harvesting the aboveground tissues could take most of nitrate out of the sediment. The saturate photosynthetic rate (Asat) of P. australis was higher than that of T. orientalis when grown in sediment substrate. But instance water-use- effciency (WUEi) (A/E) and intrinsic water use effciency (A/gs) showed the maximum values of two species grown in river water. With significant difference in gs, however, intercellular CO2 concentration (Ci) had no obvious difference in two species which indicated that high Asat value of P. australis might result from the increased carboxylation capacity of the mesophyll, because of the central role of N in photosynthetic enzymes. Our findings suggest that the plants could absorb most of nitrogen in polluted water, while gravel displayed a high capacity for absorbing the suspended matters and phosphate salts. Therefore, biological and physiological pathways for pollutant removal should be integrated. | TIAN Ziqiang ZHENG Binghui LIU Meizhen ZHANG Zhenyu | 2009 | Journal of Environmental Sciences2009,21,4: | 4 |
| 12 | Multi-objective optimization design of airfoil and wing显示文摘To extend available monoobjective optimization methods to multiobjective and multidisciplinary optimization, the construction of a suitable resultant objective function(in deterministic method-DM) or a fitness function(in genetic algorithm-GA) is important. An objective function combination method (OFCM) of constructing such a function for constrained optimization problems is suggested. How to use both deterministic and genetic algorithms to biobjective and bidisciplinary optimal design of high performance airfoils and wings is discussed. Numerical results in both 2D (airfoil) and 3D (wing) cases show that the present method can be used to optimaize different kinds of initial airfoils and wings. The performance of optimized shape is improved significantly. The method is successful and effective. | ZHU Ziqiang FU Hongyan YU Rixin LIU Jie | 2004 | Science China(Technological Sciences)2004,47,1: | 4 |
| 13 | Mobility in China,2020:a tale of four phases显示文摘2020 was an unprecedented year;with rapid and drastic changes in human mobility due to the COVID-19 pandemic.To understand the variation in commuting patterns among the Chinese population across stable and unstable periods,we used nationwide mobility data from 318 million mobile phone users in China to examine the extreme fluctuations of population movements in 2020,ranging from the Lunar New Year travel season(chunyun),to the exceptional calm of COVID-19 lockdown,and then to the recovery period.We observed that cross-city movements;which increased substantially in chunyun and then dropped sharply during the lockdown,are primarily dependent on travel distance and the socio-economic development of cities.Following the Lunar New Year holiday,national mobility remained low until mid-February,and COVID-19 interventions delayed more than 72.89 million people returning to large cities.Mobility network analysis revealed clusters of highly connected cities,conforming to the social-economic division of urban agglomerations in China.While the mass migration back to large cities was delayed,smaller cities connected more densely to form new clusters.During the recovery period after travel restrictions were lifted,the netflows of over 55%city pairs reversed in direction compared to before the lockdown.These findings offer the most comprehensive picture of Chinese mobility at fine resolution across various scenarios in China and are of critical importance for decision making regarding future public-health-emergency response,transportation planning and regional economic development,among others. | Suoyi Tan Shengjie Lai Fan Fang Ziqiang Cao Bin Sai Bing Song Bitao Dai Shuhui Guo Chuchu Liu Mengsi Cai Tong Wang Mengning Wang Jiaxu Li Saran Chen Shuo Qin Jessica R.Floyd Zhidong Cao Jing Tan Xin Sun Tao Zhou Wei Zhang Andrew J.Tatem Petter Holme Xiaohong Chen Xin Lu | 2021 | National Science Review2021,8,11: | 3 |
| 14 | Stochastic Petri Net Based Modeling of Emergency Medical Rescue Processes During Earthquakes显示文摘The post-disaster emergency medical rescue(EMR) is critical for people’s lives. This paper presents a stochastic Petri net(SPN) model based on the process of the rescue structure and a Markov chain model(MC), which is applied to the optimization of the EMR process, with the aim of identifying the key activities of EMR. An isomorphic MC model is developed for measuring and evaluating the time performance of the EMR process during earthquakes with the data of the 2008 Wenchuan earthquake.This paper provides a mathematical approach to simulate the process and to evaluate the efficiency of EMR. Simultaneously, the expressions of the steady state probabilities of this system under various states are obtained based on the MC, and the variations of the probabilities are analyzed by changing the firing rates for every transition. Based on the concrete data of the event, the authors find the most time consuming and critical activities for EMR decisions. The model results show that the key activities can improve the efficiency of medical rescue, providing decision-makers with rescue strategies during the large scale earthquake. | SUN Huali LIU Jiaguo HAN Ziqiang JIANG Juan | 2021 | Journal of Systems Science & Complexity2021,34,3: | 3 |
| 15 | Association Between COVID-19 Vaccination Coverage and Case Fatality Ratio:a Comparative Study—Hong Kong SAR,China and Singapore,December 2021–March 2022显示文摘Summary What is already known about this topic?Hong Kong Special Administrative Region(SAR),China and Singapore are both facing considerable Omicron variant epidemic.However,the overwhelmed medical system and high case fatality ratio(CFR)just occurred in Hong Kong SAR,China but not in Singapore.What is added by this report?The low vaccination coverage in Hong Kong SAR,China,especially among the older adults,is shown to be a primary reason of its recent high CFR.What are the implications for public health practice?Facing the potential epidemic risk,non-vaccinated,non-fully-vaccinated,and non-booster-vaccinated people in China,especially the elderly,should get any type of accessible vaccine,which could save lives when the infection unfortunately befalls. | Guanhao He Sui Zhu Di Fu Jianpeng Xiao Jianguo Zhao Ziqiang Lin Tao Liu Xiaofeng Liang Wenjun Ma | 2022 | China CDC weekly2022,4,30: | 2 |
| 16 | Partitioning tree water usage into storage and transpiration in a mixed forest显示文摘Background:Water migration and use are important processes in trees.However,it is possible to overestimate transpiration by equating the water absorbed through the plant roots to that diffused back to the atmosphere through stomatal transpiration.Therefore,it is necessary to quantify the water transpired and stored in plants.Method:The δ^(2)H/δ^(18)O technique and heat ratio method were used to explore the water usage of coniferous and broad-leaved tree species,including the proportions of water used for transpiration and water storage.Results:Platycladus orientalis and Quercus variabilis had strong plasticity in their water usage from different sources.Platycladus orientalis primarily used groundwater(30.5%)and the 60-100-cm soil layer(21.6%)throughout the experimental period and was sensitive to precipitation,absorbing water from the 0-20-cm layer(26.6%)during the rainy season.Quercus variabilis absorbed water from all sources(15.7%-36.5%)except from the 40-60-cm soil layer during the dry season.In addition,it did not change its water source but increased its groundwater uptake during the rainy season.The annual mean water fluxes of P.orientalis and Q.variabilis were 374.69 and 469.50 mm·year−1,with 93.49% and 93.91% of the water used for transpiration,respectively.However,nocturnal sap flow in P.orientalis and Q.variabilis was mainly used for water storage in the trunk rather than transpiration,which effectively alleviated drought stress and facilitated the transport of nutrients.Conclusions:The water stored in both species comprised 6%-7% of the total water fluxes and,therefore,should be considered in water balance models. | Ziqiang Liu Qianqian Liu Zijun Wei Xinxiao Yu Guodong Jia Jiang Jiang | 2021 | Forest Ecosystems2021,8,4: | 2 |
| 17 | Contour representation based on wedgelet显示文摘Aiming at the shortcomings of the existing wed gelet compression arithmetics, a novel contour-representing algorithm based on wedgelets is presented in this paper. Firstly the input image is binarized and the most optimized wedgelets ar e found by means of quadtree framework. Then the contours are reconstructed by a pplying the wedgelets, the data volume is compressed, and the shortcomings of th e contour representation based on normal wavelet are ameliorated, the better ef fect for the visualization is obtained, too. | Liu Zeyi~1, Sun Ziqiang~ 2,3 , Xu Ling~2 & Peng Xiang~ 4,5 1. Dept. of Mathematics of Science Coll., Shenzhen Univ., Shenzhen 518060, P.R. China 2. Dept. of Mathematics of Science Coll., Tianjin Univ., Tianjin 300072, P.R. Ch ina 3.Tianjin Foreign Studies Univ., Tianjin 300204, P.R. China 4. Inst. of Optoelectronics, Shenzhen Univ., Shenzhen 518060, P.R. China 5. National Lab of Precision Measurement Technology and Instrumentation, Tianjin 300072, P.R. China | 2006 | Journal of Systems Engineering and Electronics2006,17,2: | 2 |
| 18 | A high-Tc dc-SQUID-based single-channel MCG and its performance显示文摘A single-channel high-Tc dc-SQUID magnetometer and gradiometer have been developed to record the magnetic field component perpendicular to the human chest generated by heart-beat. Magnetocardiogram (MCG) measurements have been carried out inside a magnetically shielded room. By sequentially adjusting a non-magnetic patient table with 5 cm pitch in X and Y directions, the field signals on a rectangle grid 5×5 over the chest area were registered in real time trace point by point with a typical dwell time over 30 cardiocycles each. Utilizing standard electrocardiogram (ECG) recordings as timing reference measured simultaneously with the MCG signals, the MCG data were then averaged and combined to form magnetic field patterns every 10 ms or so. Both the current dipole, which is parallel to MCG measuring plane and produces the vertical magnetic field, and its depth were determined as a function of time in a standard way. We have compared the MCG of healthy hearts with that of a heart with right bundle | WANG Huiwu DING Hongsheng ZHANG Lihua HUANG Xuguang CHEN Weichang WANG Ziqiang FENG Ji LIU Yiping ZHAO Shiping REN Yufeng YU Hongwei XU Fengzhi WANG Xiaoyin CHEN Genghua YANG Qiansheng | 2002 | Chinese Science Bulletin2002,47,22: | 2 |
| 19 | The Behavior of Carbonized Polymer Dots at the Nano-Bio Interface and Their Luminescent Mechanism:A Physical Chemistry Perspective显示文摘Carbonized polymer dots(CPDs)have been widely applied in biomedical fields,such as imaging,diagnosis and drug delivery.Since the complex,non-equilibrated and dynamic nature of biological systems inevitably affect the predesigned properties of CPDs,then efficiency and ultimate outcome of CPDs in biological identity will be transformed by the ubiquitous nano-bio interactions.Herein,our recent progress about elucidating the behavior of CPDs at nano-bio interface from the perspective of physical chemistry has been summarized in the review,mainly at the bio-macromolecular,cellular membrane and cellular levels,which is crucial for characterize their relative cytotoxicity and clinical transformation.Moreover,we mainly focused on the quantitative relationship of nano-bio interactions between CPDs with biological identity and related thermodynamics parameters during this process is also obtained from advanced isothermal titration calorimetry technique.Finally,our recent study about the photoluminescence origin is also included in this review,which favors modulating the photoluminescence of CPDs. | Ziqiang Xu Yi Liu | 2021 | Chinese Journal of Chemistry2021,39,2: | 2 |
| 20 | High-sensitivity, high-spatial-resolution distributed strain sensing based on a poly(methyl methacrylate) chirped fiber Bragg grating显示文摘In this study,a high-sensitivity,high-spatial-resolution distributed strain-sensing approach based on a poly(methyl methacrylate)chirped fiber Bragg grating(CFBG)is proposed and experimentally demonstrated.Linearly chirped FBGs in a polymer optical fiber provide an alternative to the silica fiber owing to the lower Young’s modulus,which can yield a higher stress sensitivity under the same external force.According to the spatial wavelength-encoded characteristic of the CFBG,a fully distributed strain measurement can be achieved by optical frequency-domain reflectometry.Through time-/space-resolved short-time Fourier transform,the applied force can be located by the beat frequency originated from the space-induced time delay and measured by the differential frequency offset originated from the strain-induced dispersion time delay.In a proof-of-concept experiment,a high spatial resolution of 1 mm over a gauge length of 40 mm and a strain resolution of 0.491 Hz/μεwere achieved. | Chengang Lyu Ziqi Liu Ziqiang Huo Chunfeng Ge Xin Cheng Haw-Yaw Tam | 2020 | Photonics Research2020,8,7: | 2 |