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| 1 | Significant concurrent decrease in PM_(2.5) and NO_(2) concentrations in China during COVID-19 epidemic显示文摘The strict control measures and social lockdowns initiated to combat COVID-19 epidemic have had a notable impact on air pollutant concentrations.According to observation data obtained from the China National Environmental Monitoring Center,compared to levels in 2019,the average concentration of NO_(2) in early 2020 during COVID-19 epidemic has decreased by 53%,50%,and 30%in Wuhan city,Hubei Province(Wuhan excluded),and China(Hubei excluded),respectively.Simultaneously,PM_(2.5) concentration has decreased by 35%,29%,and 19%in Wuhan,Hubei(Wuhan excluded),and China(Hubei excluded),respectively.Less significant declines have also been found for SO_(2) and CO concentrations.We also analyzed the temporal variation and spatial distribution of air pollutant concentrations in China during COVID-19 epidemic.The decreases in PM_(2.5) and NO_(2) concentrations showed relatively consistent temporal variation and spatial distribution.These results support control of NO x to further reduce PM_(2.5) pollution in China.The concurrent decrease in NOx and PM_(2.5) concentrations resulted in an increase of O3 concentrations across China during COVID-19 epidemic,indicating that coordinated control of other pollutants is needed. | Biiuu Chu Shuping Zhang Jun Liu Qingxin Ma Hong He | 2021 | Journal of Environmental Sciences2021，33，1： | 21 |
| 2 | Fuzzy Control of LED Tunnel Lighting and Energy Conservation显示文摘Current highway tunnel lighting control systems are often manually controlled,resulting in significant energy waste.This article designs a fuzzy control algorithm for tunnel lighting energy control systems.The system uses LED (Light Emitting Diode) lighting,so the fuzzy control algorithm is designed for LED lights.The traffic and the natural illumination level are used as parameters in the intelligent lighting control algorithm.This system has been deployed in the Lengshui tunnel on the 49th provincial highway of Zhejiang province and operated for more than six months.The performance results show that the energy conservation system provides sufficient lighting levels for traffic safety with significant energy conservation. | Hong Zeng Jian Qiu Xingfa Shen Guojun Dai Peng Liu Shuping Le | 2011 | Tsinghua Science and Technology2011，16，6： | 17 |
| 3 | An important role of the hepcidin-ferroportin signaling in affecting tumor growth and metastasis显示文摘 | Wenli Guo Shuping Zhang Yue Chen Daoqiang Zhang Lin Yuan Haibo Cong Sijin Liu | 2015 | Acta Biochimica et Biophysica Sinica2015，47，9： | 14 |
| 4 | Robust stability and H-infinity control for uncertain discrete-time Markovian jump singular systems显示文摘The robust stability and stabilization, and H-infinity control problems for discrete-time Markovian jump singular systems with parameter uncertainties are discussed. Based on the restricted system equivalent (r.s.e.) transformation and by introducing new state vectors, the singular system is transformed into a discrete-time Markovian jump standard linear system, and the linear matrix inequality (LMI) conditions for the discrete-time Markovian jump singular systems to be regular, causal, stochastically stable, and stochastically stable with γ-disturbance attenuation are obtained, respectively. With these conditions, the robust state feedback stochastic stabilization problem and H-infinity control problem are solved, and the LMI conditions are obtained. A numerical example illustrates the effectiveness of the method given in the paper. | Shuping MA Chenghui ZHANG Xinzhi LIU | 2008 | 控制理论与应用(英文版)2008，6，2： | 6 |
| 5 | Correlation between the cumulative analgesic effect of electroacupuncture intervention and synaptic plasticity of hypothalamic paraventricular nucleus neurons in rats with sciatica显示文摘In the present study, a rat model of chronic neuropathic pain was established by ligation of the sciatic nerve and a model of learning and memory impairment was established by ovariectomy to investigate the analgesic effect of repeated electroacupuncture stimulation at bilateral Zusanli (ST36) and Yanglingquan (GB34). In addition, associated synaptic changes in neurons in the paraventricular nucleus of the hypothalamus were examined. Results indicate that the thermal pain threshold (paw withdrawal latency) was significantly increased in rats subjected to 2-week electroacupuncture intervention compared with 2-day electroacupuncture, but the analgesic effect was weakened remarkably in ovariectomized rats with chronic constrictive injury. 2-week electroacupuncture intervention substantially reversed the chronic constrictive injury-induced increase in the synaptic cleft width and thinning of the postsynaptic density. These findings indicate that repeated electroacupuncture at bilateral Zusanli and Yanglingquan has a cumulative analgesic effect and can effectively relieve chronic neuropathic pain by remodeling the synaptic structure of the hypothalamic paraventricular nucleus. | Qiuling Xu Tao Liu Shuping Chen Yonghui Gao Junying Wang Lina Qiao Junling Liu | 2013 | Neural Regeneration Research2013，8，3： | 6 |
| 6 | Text Detection in Natural Scene Images Using Morphological Component Analysis and Laplacian Dictionary显示文摘Text in natural scene images usually carries abundant semantic information. However, due to variations of text and complexity of background, detecting text in scene images becomes a critical and challenging task. In this paper, we present a novel method to detect text from scene images. Firstly, we decompose scene images into background and text components using morphological component analysis(MCA), which will reduce the adverse effects of complex backgrounds on the detection results.In order to improve the performance of image decomposition,two discriminative dictionaries of background and text are learned from the training samples. Moreover, Laplacian sparse regularization is introduced into our proposed dictionary learning method which improves discrimination of dictionary. Based on the text dictionary and the sparse-representation coefficients of text, we can construct the text component. After that, the text in the query image can be detected by applying certain heuristic rules. The results of experiments show the effectiveness of the proposed method. | Shuping Liu Yantuan Xian Huafeng Li Zhengtao Yu | 2020 | IEEE/CAA Journal of Automatica Sinica2020，7，1： | 6 |
| 7 | Epidemiology of urticaria in China:a population-based study显示文摘Background:Urticaria is a common skin disease characterized by episodes of wheals,and it has a negative effect on patients’quality of life.Large-scale population-based epidemiological studies of urticaria are scarce in China.The aim of this survey was to determine the prevalence,clinical forms,and risk factors of urticaria in the Chinese population.Methods:This survey was conducted in 35 cities from 31 provinces,autonomous regions,and municipalities of China.Two to three communities in each city were selected in this investigation.Participants completed questionnaires and received dermatological examinations.We analyzed the prevalence,clinical forms,and risk factors of urticaria.Results:In total,44,875 questionnaires were distributed and 41,041 valid questionnaires were collected(17,563 male and 23,478 female participants).The lifetime prevalence of urticaria was 7.30%,with 8.26%in female and 6.34%in male individuals(P<0.05).The point prevalence of urticaria was 0.75%,with 0.79%in female and 0.71%in male individuals(P<0.05).Concomitant angioedema was found in 6.16%of patients.Adults had a higher prevalence of urticaria than adolescents and children.Living in urban areas,exposure to pollutants,an anxious or depressed psychological status,a personal and family history of allergy,thyroid diseases,and Helicobacter pylori infection were associated with a higher prevalence of urticaria.Smoking was correlated with a reduced risk of urticaria.Conclusion:This study demonstrated that the lifetime prevalence of urticaria was 7.30%and the point prevalence was 0.75%in the Chinese population;women had a higher prevalence of urticaria than men.Various factors were correlated with urticaria. | Jiaqing Li Dandan Mao Shuoshuo Liu Ping Liu Jing Tian Chenhong Xue Xiaojing Liu Ruiqun Qi Bingxue Bai Jianjun Nie Siqi Ye Yu Wang Yuye Li Qing Sun Juan Tao Shuping Guo Hong Fang Jianqin Wang Qiri Mu Quanzhong Liu Yan Ding Jianzhong Zhang | 2022 | Chinese Medical Journal2022，，11： | 6 |
| 8 | Sensitive and selective molecularly imprinted electrochemical sensor based on multi-walled carbon nanotubes for doxycycline hyclate determination显示文摘An electrochemical sensor for doxycycline hyclate(DC)detection with high sensitivity and good selectivity is reported.The sensor was fabricated by electro-polymerization of molecularly imprinted polymers(MIPs)in the presence of DC onto multi-walled carbon nanotubes modified glassy carbon electrode(MWCNTs/GCE).The MWCNTs can significantly increase the current response of the sensor,leading to enhanced sensitivity.The MIPs provide selective recognition sites for DC detection.The experimental parameters,such as the polymer monomer concentration,supporting electrolyte pH,the time for electro-polymerization and the incubation time of the sensor with DC were optimized.Under optimized experimental conditions,the sensor displayed a linear range of 0.05μmol/L-0.5μmol/L towards DC detection,with the detection limit of 1.3×10^-2μmol/L.The sensor was successfully applied for recovery test of DC in human serum samples. | Zeyu Xu Xingxing Jiang Shuping Liu Minghui Yang | 2020 | Chinese Chemical Letters2020，31，1： | 6 |
| 9 | Reliability and validity of the Chinese version of CAHS among renal transplant recipients显示文摘Purpose:The purpose of this study was to assess the applicability of the Chinese version of Cognitive Appraisal of Health Scale(CAHS)for renal transplant recipients,and to make a preliminary evaluation of its reliability and validity.Methods:A total of 147 renal transplant recipients who attended a transplant follow-up clinic in a Level 3,Grade A hospital in Beijing were asked to complete the Chinese version of CAHS.Following completion the reliability and validity of the scale were tested.Results:The Cronbach alpha coefficient of Chinese version of CAHS among subscales of threat,harm,challenge and benign-irrelevant were 0.857,0.806,0.680,0.100 respectively;and the test-retest reliability coefficient were 0.791,0.601,0.624,0.470(p<0.01).Spearman correlation was used to test the four subscales'correlation between the item score and the total score,in which threat was 0.598e0.748,challenge was 0.517e0.651,harm was 0.528 e0.735 and benign-irrelevant was 0.507e0.651.These correlations were all statistically significant.The four common factors were extracted using factor analysis.The four factors accounted for 50.356%of the total variance.The SF-36 Physical Component Summary(PCS)and Mental Component Summary(MCS)scores were correlated with each subscale score in CAHS.Threat was weakly correlated to PCS,and was moderately correlated to MCS;harm was moderately correlated to both PCS and MCS;challenge was weakly correlated to both PCS and MCS and benign-irrelevant did not correlate with neither PCS nor MCS.The Chinese version of CAHS has been shown to have good discriminate and convergent validity.Conclusion:The Chinese version of the CAHS was supported to be applicable and to provide measurable performance in renal transplant recipients,thus it can be utilized with renal transplant recipients in China. | Shuping Zhang Yabin Shang Xiao Peng Hui Xie Hongxia Liu | 2015 | International Journal of Nursing Sciences2015，2，3： | 4 |
| 10 | Acupuncture effects on the hippocampal cholinergic system in a rat model of neuropathic pain显示文摘The present study observed the effects of repeated electroacupuncture of Zusanli (ST36) and Yanglingquan (GB34) on expression of hippocampal acetylcholinesterase, vesicular acetylcholine transporter, and muscarinic M1 receptor mRNA in chronic constrictive injury (neuropathic pain) and/or ovariotomy rats. Results demonstrated increased expression of hippocampal acetylcholinesterase, vesicular acetylcholine transporter, and muscarinic M1 receptor mRNA, as well as decreased pain threshold, in a rat model of chronic neuropathic pain after electroacupuncture. The effects of electroacupuncture increased with prolonged time, but the above-mentioned effects decreased in memory-deficient animals. Results indicated that repeated electroacupuncture has a cumulative analgesic effect, which is closely associated with upregulation of acetylcholinesterase and vesicular acetylcholine transporter activity, as well as M1 receptor mRNA expression and memory. | Junying Wang Junling Liu Shuping Chen Yonghui Gao Fanying Meng Lina Qiao | 2012 | Neural Regeneration Research2012，7，3： | 4 |
| 11 | A preliminary exploration of the mechanism for the occurrence of two types of various magnetic structures in the magnetotail显示文摘As well known, the magnetic cross-tail component By in the magnetotail is in direct proportion to the in-terplanetary magnetic field (IMF) By component. And the polarity of IMF and plasmoid / flux rope By components do indeed agree. This results indicate that the IMF By penetrates plasmoids and the magnetic structures must therefore be three-dimensional. In this note, the dynamical processes of magnetotail in the course of a substorm are studied using a MHD code with two-dimensions and three components on the basis of two types of initial equilibrium solutions of the quiet magnetotail. The numerical results of two cases illustrate various features of time evolution of By component that correspond to two kinds of plasmoid-like structures: one is associated with a flux rope core and the other resembles a 'closed loop' plamoid. Therefore, the occurrence of various magnetic structures in the magnetotail might be related to nonsteady driven reconnection with different distributions of the By component. | JIN Shuping HU Xianpeng GUI Hailong LIU Zhenxing PU Zuyin B.Wilken | 2001 | Chinese Science Bulletin2001，46，12： | 4 |
| 12 | The cumulative analgesic effect of repeated electroacupuncture involves synaptic remodeling in the hippocampal CA3 region显示文摘In the present study, we examined the analgesic effect of repeated electroacupuncture at bilateral Zusanli (ST36) and Yanglingquan (GB34) once a day for 14 consecutive days in a rat model of chronic sciatic nerve constriction injury-induced neuropathic pain. In addition, concomitant changes in calcium/calmodulin-dependent protein kinase II expression and synaptic ultrastructure of neurons in the hippocampal CA3 region were examined. The thermal pain threshold (paw withdrawal latency) was increased significantly in both groups at 2 weeks after electroacupuncture intervention compared with 2 days of electroacupuncture. In ovariectomized rats with chronic constriction injury, the analgesic effect was significantly reduced. Electroacupuncture for 2 weeks significantly diminished the injury-induced increase in synaptic cleft width and thinning of the postsynaptic density, and it significantly suppressed the down-regulation of intracellular calcium/ calmodulin-dependent protein kinase II expression in the hippocampal CA3 region. Repeated electroacupuncture intervention had a cumulative analgesic effect on injury-induced neuropathic pain reactions, and it led to synaptic remodeling of hippocampal neurons and upregulated calcium/calmodulin-dependent protein kinase II expression in the hippocampal CA3 region. | Qiulinq Xu Tao Liu Shuping Chen Yonghui Gao Junying Wang Lina Qiao Junling Liu | 2012 | Neural Regeneration Research2012，7，18： | 3 |
| 13 | Mild metal-organic-gel route for synthesis of stable sub-5-nm metal-organic framework nanocrystals显示文摘 | Yue Qi Chun-Ting He Juntao Lin Shuping Lin Jin Liu Jinghong Huang Wei Xue Guicheng Yu Hsiu-Yi Chao Yexiang Tong Zhengping Qiao | 2017 | Nano Research2017，10，11： | 3 |
| 14 | Resorcinol-formaldehyde resin-based porous carbon spheres with high CO_2 capture capacities显示文摘Porous carbon spheres are prepared by direct carbonization of potassium salt of resorcinol-formaldehyde resin spheres, and are investigated as CO_2 adsorbents. It is found that the prepared carbon materials still maintain the typical spherical shapes after the activation, and have highly developed ultra-microporosity with uniform pore size, indicating that almost the activation takes place in the interior of the polymer spheres. The narrow-distributed ultra-micropores are attributed to the 'in-situ homogeneous activation'effect produced by the mono-dispersed potassium ions as a form of -OK groups in the bulk of polymer spheres. The CS-1 sample prepared under a KOH/resins weight ratio of 1 shows a very high CO_2 capture capacity of 4.83 mmol/g and good CO_2/N_2 selectivity of ~17-45. We believe that the presence of a welldeveloped ultra-microporosity is responsible for excellent CO_2 sorption performance at room temperature and ambient pressure. | Xuan Wang Jin Zhou Wei Xing Boyu Liu Jianlin Zhang Hongtao Lin Hongyou Cui Shuping Zhuo | 2017 | Journal of Energy Chemistry2017，26，5： | 3 |
| 15 | Exponential passive filtering for a class of nonlinear jump systems显示文摘The exponential passive filtering problem for a class of nonlinear Markov jump systems with uncertainties and time-delays is studied.The uncertain parameters are assumed unknown but norm bounded,and the nonlinearities satisfy the quadratic condition.Based on the passive filtering theory,the sufficient condition for the existence of the mode-dependent passive filter is given by analyzing the reconstructed observer system.By using the appropriate Lyapunov-Krasovskii function and applying linear matrix inequalities,the design scheme of the passive filter is derived and described as an optimization one.The presented exponential passive filter makes the error dynamic systems exponentially stochastically stable for all the admissible uncertainties,time-delays and nonlinearities,has the better abilities of state tracking and satisfies the given passive norm index.Simulation results demonstrate the validity of the proposed approach. | He Shuping Liu Fei | 2009 | Journal of Systems Engineering and Electronics2009，20，4： | 3 |
| 16 | Dual alloying improves the corrosion resistance of biodegradable Mg alloys prepared by selective laser melting显示文摘Mg alloys have been regarded as revolutionary metallic biomaterials for biodegradable bone implants,but their applications are mainly blocked by the too rapid degradation in physiological environment.This study explores the dual alloying effects of Mn and/or Sn on the performance of Mg alloys prepared by selective laser melting.The observed microstructure indicated remarkable refinement of both the grains and intermetallic phases in the Mn-and/or Sn-containing alloys during the rapid solidification process.Moreover,approximately a half decrease in corrosion rate was observed for AZ61-0.4Mn-0.8Sn alloy with respect to AZ61 alloy.The improved corrosion behavior was primarily due to the enhanced protective effects of surface layers,in which Mn-and/or Sn-rich phases acted as a helpful barrier against medium penetration and thereby alleviated the current exchange with the matrix.In addition,the solute Mn and/or Sn positively shifted the corrosion potential,which also brought about a better corrosion resistance.Furthermore,the strength and hardness of the alloys were also effectively improved and comparable to those of cortical bone.This could be ascribed to the dissolved Mn and/or Sn atoms and the finely dispersed intermetallic phases,which might cause lattice distortion and precipitation hardening.Besides,the Mn-and/or Sn-containing alloys showed good cytocompatibility as indicated by the normal morphology and increased viability of MG-63 cells.These findings suggest that the developed AZ61-Mn-Sn alloy is a promising candidate for biodegradable bone implants. | Chengde Gao Sheng Li Long Liu Shizhen Bin Youwen Yang Shuping Peng Cijun Shuai | 2021 | Journal of Magnesium and Alloys2021，9，1： | 3 |
| 17 | Clear mortality gap caused by graft macrosteatosis in Chinese patients after cadaveric liver transplantation显示文摘Background:Liver transplantation(LT)is one of the most effective surgical treatment for patients with end-stage liver disease.Steatosis is a contributor for inferior graft quality.But its impact and safety on transplantation was less assessed in Chinese patients.Methods:Graft steatosis and related information involved in recipients,donors and surgical procedures were retrospectively collected from 239 patients.Results:Donor macrosteatosis(MaS)caused about 2.14 and 2.80 folds of increment on patient and graft mortality.Dose-response analysis revealed prominent risk of grafts on overall patient/organ mortality when MaS content exceeded 10%(P<0.05).Noteworthy,deaths were only observed in MaS group when concurrent with extremely higher post-transplant alanine aminotransferase(ALT,64%).However,microsteatosis(MiS)grafts didn’t affect outcomes after LT.In a cohort of Chinese patients,MaS had comprehensive effects on post-transplant outcomes with relatively lower safety threshold at 10%.Mortality gap caused by MaS grafts was observed in patients with severer ischemia reperfusion injury.Conclusions:Our study revealled the graft MaS affected the post-transplant outcomes in lower risk cutoff in Chinese patients.Further study is worthy to validate these results and investigate inner mechanism under the phenomenon. | Zhengtao Liu Wenchao Wang Li Zhuang Jingfeng Liu Shuping Que Dan Zhu Linfang Dong Jian Yu Lin Zhou Shusen Zheng | 2020 | Hepatobiliary Surgery and Nutrition2020，9，6： | 2 |
| 18 | Exponential stability for uncertain neutral systems with Markov jumps显示文摘This paper deals with the global exponential stability problems for stochastic neutral Markov jump systems (MJSs) with uncertain parameters and multiple time-delays. The delays are respectively considered as constant and time varying cases, and the uncertainties are assumed to be norm bounded. By selecting appropriate Lyapunov-Krasovskii functions, it gives the sufficient condition such that the uncertain neutral MJSs are globally exponentially stochastically stable for all admissible uncertainties. The stability criteria are formulated in the form of linear matrix inequalities (LMIs), which can be easily checked in practice. Finally, two numerical examples are exploited to illustrate the effectiveness of the developed techniques. | Shuping HE Fei LIU | 2009 | 控制理论与应用(英文版)2009，7，1： | 2 |
| 19 | Synthesis,crystal structure and thermal behavior of Rb(NTO)·H_2O显示文摘The Rb(NTO) .H2O crystal has been synthesized by reaction of 3-nitro-l,2,4-triazole-5-one (NTO) with Rb2CO3 in aqueous solution. Its crystal structure has been determined. The crystal belongs to monoclinic system. Crystal structure data: space group P21/ n; a = 0.633 0(1), b = 0.824 1(2), c =1.296 4(3) nm; β = 97.90(1)°; V = 0.669 9 (2) nm3, Z = 4, Dc= 2.306 g/cm3,μ = 7.365 nm-1, F(000) = 448. An eight coordinated compound is formed between Rb+ with oxygen atoms and nitrogen atoms. A layer structure is formed by coordination bonds and hydrogen bonds. The thermal decomposition mechanism of this coordination compound is discussed. | HU Mancheng, GAO Shiyang, LIU Zhihong, SONG Jirong, XIA Shuping & YU Kaibei1. Institute of Applied Chemistry, Shaanxi Normal University, Xi’an 710062, China 2. Department of Chemical Engineering, Northwest University, Xi’an 710069, China 3. Chengdu Branch of Chinese Academy of Sciences, Chengdu 610041, China | 2001 | Chinese Science Bulletin2001，46，1： | 2 |
| 20 | Regulatory effect of traditional Chinese medicines on signaling pathways of process from chronic atrophic gastritis to gastric cancer显示文摘Chronic atrophic gastritis(CAG),a common disease of digestive system,is an extremely important cause of gastric cancer(GC).The occurrence and development of CAG involves the abnormality of multiple signaling pathways.Traditional Chinese medicines(TCMs)has the advantages of mild action,multi-target and small adverse reaction,etc.,which broadens the way for the treatment of the disease,and TCMs can play a therapeutic role by regulating multiple signaling pathways.In this review,based on the related experiments of TCMs and Chinese herbal compounds in recent years,the related literatures were searched and 10 kinds of signaling pathways involved were summarized,in order to provide a reference for further research on reversing or delaying the progress of CAG and preventing gastric cancer. | Xinnan Liu Shuping Wang Jingyang Li Jingze Zhang Dailin Liu | 2022 | Chinese Herbal Medicines2022，14，1： | 2 |
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