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18篇 您的检索式:作者名="Chongwen Li"
    题名 作者 年代 出处 被引量
1Unsaturated-sulfur-rich MoS2 nanosheets decorated on free-standing SWNT film: Synthesis, characterization and electrocatalytic application显示文摘此处,我们报导一条自底向上的 solvothermal 线路综合为氢进化反应的灵活、高度有效的瞬间 2@SWNT electrocatalyst (她的) 。描述表明包含 sulfurrich 地点的像分支的瞬间 2 nanosheets 在一致地在自立的围单人赛的碳 nanotube (SWNT ) 上驱散的 situ 电影,能暴露更不饱和的硫原子,与活跃地点允许优秀电的接触。展出的灵活催化剂优秀她有低过电位的表演(~ 在 10 妈 / 厘米 2) 和小 Tafel 斜坡(41 mV/dec ) 的 150 mV。为了推进,解释改进表演,本地电子结构被 X 光检查吸收调查近边的结构(XANES ) 分析,证明不饱和的硫原子并且在瞬间 2 和 SWNT 之间的强壮的电子联合的存在。这研究提供一条在原处合成的线路在催化剂微观结构,电子结构,和性质之中创造新多功能的灵活 hybridized 催化剂和有用卓见进关系。Daobin Liu Weiyu Xu Qin Liu Qun He Yasir A. Haleem Changda Wang Ting Xiang Chongwen Zou Wangsheng Chu Jun Zhong Zhiqiang Niu Li Song 2016Nano Research2016,9,7:7
2Synthesis and biological evaluation of 12-N-p-chlorobenzyl sophoridinol derivatives as a novel family of anticancer agents显示文摘Taking 12-N-p-chlorobenzyl sophoridinol 2 as a lead, a series of novel sophoridinic derivatives with various 30-substituents at the 11–side chain were synthesized and evaluated for their anticancer activity from sophoridine(1), a natural antitumor medicine. Among them, the sophoridinic ketones 5a–b, alkenes 7a–b and sophoridinic amines 14a–b displayed reasonable antiproliferative activity with IC50 values ranging from 3.8 to 5.4 μmol/L. Especially, compounds 5a and 7b exhibited an equipotency in both adriamycin(AMD)-susceptible and resistant MCF-7 breast carcinoma cells,indicating a different mechanism from AMD. The primary mechanism of action of 5a was to arrest the cell cycle at the G0/G1 phase, consistent with that of parent compound 1. Thus, we consider 12-chlorobenzyl sophoridinic derivatives with a tricyclic scaffold to be a new class of promising antitumor agents with an advantage of inhibiting drug-resistant cancer cells.Chongwen Bi Cheng Ye Yinghong Li Wuli Zhao Rongguang Shao Danqing Song 2016Acta Pharmaceutica Sinica B2016,6,3:4
3A TiO_(2)nanotubes film with excellent antireflective and near-perfect self-cleaning performances显示文摘SiO_(2)/TiO_(2)composite films have been frequently used to realize the functions of self-cleaning and antireflection.Increasing the TiO_(2)volume ratio in SiO_(2)/TiO_(2)composite film is beneficial to enhance the self-cleaning effect,while high TiO_(2)content leads to a strong Rayleigh scattering and depresses the antireflective performance,resulting in a bottleneck problem for the dual-functional application.Here,we have achieved a high-quality TiO_(2)nanotubes film with excellent antireflective and near-perfect selfcleaning performances.Ultrasound assisted pickling method has been developed to effectively prepare the well-dispersed protonated titanate nanotubes colloid.After spin-coating and annealing treatment,glass substrate coated with double-side TiO_(2)nanotubes film has a peak transmittance of 99.2%and average transmittance of 97.4%at 400-800 nm.Ultra-high porosity of TiO_(2)nanotubes film(80%)and ultra-fine size of TiO_(2)nanotubes(8.6 nm in outer diameter)lead to excellent antireflective performance.With high UV absorptivity(80%at 254 nm)and formal quantum efficiency of stearic acid(10.9×10^(-3)),TiO_(2)nanotubes film shows near-perfect self-cleaning performance.A persistent anti-fogging ability is also presented.This study demonstrates the feasibility to fabricate pure TiO_(2)antireflective coating for glass substrate,extends application field of the classic TiO_(2)nanotubes,and sheds lights on the practical applications of high-powered TiO_(2)nanotube-based multi-functional films.Kaibin Li Ming Li Chang Xu Zengyan Du Jiawang Chen Fengxia Zou Chongwen Zou Sichao Xu Guanghai Li 2021Journal of Materials Science & Technology2021,,29:3
4Effects of ubiquitin-protea-some pathway on mouse sperm capacitation, acrosome reaction and in vitro fertilization显示文摘Chlortetracycline (CTC) fluorescence patterns were used to study changes in the patterns B and AR of mouse sperm after incubation with reagents that would block the UPP. They were the monoclonal antibody againstubiquitinated proteins——UCPi; the polyclonal antibodyagainst ubiquitin-anti-Ub, and a special inhibitor againstproteasome——ALLN. Furthermore, we treated the capaci-tated sperm or the eggs with these reagents separately and tested whether the normal in vitro fertilization was blocked or not. Results illustrate that UCP1, anti-Ub, and ALLN have little effects on sperm capacitation and acrosome reaction, but they do inhibit fusion of mouse sperm with eggs, which suggests that UPP play an important role in mouse in vitro fertilization.WANG Hongmei SONG Changcheng DUAN Chongwen SHI Weixian LI Cunxi CHEN Dayuan WANG Yongchao 2002Chinese Science Bulletin2002,47,2:2
5Hydrogen-Bonded Dopant-Free Hole Transport Material Enables Efficient and Stable Inverted Perovskite Solar Cells显示文摘Although many dopant-free hole transport materials(HTMs)for perovskite solar cells(PSCs)have been investigated in the literature,novel and useful molecular designs for high-performance HTMs are still needed.In this work,a hydrogen-bonding association system(NH⋯CO)between amide and carbonyl is introduced into the pure HTM layer.Rui Li Chongwen Li Maning Liu Paola Vivo Meng Zheng Zhicheng Dai Jingbo Zhan Benlin He Haiyan Li Wenjun Yang Zhongmin Zhou Haichang Zhang 2022CCS Chemistry2022,4,9:1
6Smac: Its role in apoptosis induction and use in lung cancer diagnosis and treatment显示文摘Sida Qin Chengcheng Yang Shuo Li Chongwen Xu Yang Zhao Hong Ren 2011Cancer Letters2011,,1:1
7Innovation and Practice of Training Mode for Professional Postgraduates of Acupuncture and Tuina Based on Artificial Intelligence显示文摘In view of the common problems of integrating artificial intelligence into the training of postgraduates in Acupuncture and Tuina major,this paper reviews the related research progress both at home and abroad.It puts forward the innovative reform paths for integrating artificial intelligence into postgraduate training mode of Acupuncture and Tuina major:construct the teaching staff of artificial intelligence graduate students;innovating artificial intelligence to promote the integration of classics and scientific research;constructing the ideological and political case base of artificial intelligence courses;implementing artificial intelligence platform blended teaching;building a domestic and foreign exchange platform for artificial intelligence.Through practical research in teaching,it has achieved good teaching results and played a good demonstration,leading and radiation role in similar majors in China.Mingjun LIU Xiaochao GANG Zhengri CONG Junhao HU Jianfeng LIANG Chongwen ZHONG Xinyi YUAN Bing DAI Yuzhe ZHANG Lijie LI Tianyi MU Yiran HAN Chaochao HUA 2024Asian Agricultural Research2024,16,3:0
8Environmental Isotopes and Cl/Br Ratios Evidences for Delineating Arsenic Mobilization in Aquifer System of the Jianghan Plain,Central China显示文摘Environment isotopes(δ18O andδ2H)and Cl/Br ratios in surface water and groundwater are combined to investigate arsenic mobilization in aquifer system of the Jianghan Plain.The groundwater has relatively high arsenic concentrations,ranging from 3.6 to 1055.3μg/L with an average of 102.2μg/L,which exceeds China’s drinking water standard(10μg/L).The arsenic content of surface water samples is quite low with the range of 6.0–14.3μg/L,averaging 9.5μg/L.δ18O andδ2H values for surface water and groundwater samples plot close to the local meteoric water line(LMWL),reflecting their meteoric origin;a subset of the samples(shallow wells,10 m)shows a shift to LMWL,commensurate with mixing with surface water and evaporation.The correlations betweenδ18O values and Cl concentration and Cl/Br ratios as well as arsenic concentration demonstrated that surface water and groundwater interactions,including active exchange between river/pond water and groundwater and vertical infiltration from agricultural and aquacultural soils,were dominated processes affecting arsenic mobilization in shallow groundwater system and lateral recharge was the main process controlling arsenic behavior in deep groundwater system.The results of this study will be beneficial to understanding the causes of arsenic mobilization in Jianghan groundwaters at different depths.Yu Zhang Qian Yu Chongwen Shi Ping Li Hong Niu 2023Journal of Earth Science2023,34,2:0
9Single-sphere model for solvent reorganization energy and its application to electron transfer显示文摘In this work, the authors give detailed deductions and develop the single-sphere model of solvent reorganization energy in electron transfer with point dipole approximation. At the level of DFT/6- 31++G**, the electron transfer between 7,7,8,8-tet-racyanoquinodimethane and its anion has been investigated. Using the novel single-sphere model, the authors evaluate the solvent reorganization energy of this system, and the computational result proves rational in comparison with the experimental estimations.ZHOU Chongwen ZHU Quan FU Kexiang LI Xiangyuan 2006Chinese Science Bulletin2006,51,8:0
10Crustal architecture and metallogeny associated with the Paleo-Tethys evolution in the Eastern Kunlun Orogenic Belt,Northern Tibetan Plateau显示文摘The Eastern Kunlun Orogenic Belt(EKOB)in the Northern Tibet Plateau hosts a wide variety of metal deposits related to the Late Paleozoic to Mesozoic magmatism.In this study,we investigate the spatiotemporal distribution of the Late Paleozoic to Mesozoic granitic rocks and associated metal deposits in the EKOB and provide a comprehensive compilation of the geochronological,geochemical and isotopic data on these rocks.We compute regional zircon Hf isotope and crustal thickness maps from the data,based on which a comprehensive model is proposed involving subduction(ca.270–240 Ma),continental collision(ca.240–224 Ma),and post-collisional extension(ca.224–200 Ma)for the Late Paleozoic to Mesozoic Paleo-Tethys evolution in the EKOB.Zircon Hf isotopic and crustal thickness mapping of Late Paleozoic to Mesozoic magmatic rocks was carried out to evaluate their spatio-temporal and genetic links with the regional metallogeny.The polymetallic Fe-skarn and porphyry Cu(Mo)deposits in the EKOB are located above the Moho uplift region,featuring a comparatively thin crust.Granites associated with porphyry Cu(Mo)and polymetallic Fe skarn mineralization are commonly characterized by highε_(Hf)(t)and younger T_(DM)cvalues,whereas granite related to Cu-Mo-Sn skarn deposits exhibit more variableε_(Hf)(t)values,T_(DM)c ages,and the crust thickness,which suggest that more crustal materials contributed to the formation of Cu-Mo-Sn skarn deposits than those for porphyry Cu(Mo)and polymetallic Fe skarn mineralization.In contrast,vein-type Au deposits are located primarily where the Moho surface displays a depression,i.e.,where the continental crust is relatively thick.The magmatic rocks associated with Au mineralization are characterized by lowε_(Hf)(t)and high T_(DM)cvalues,representing reworked ancient crustal components,similar to those associated with porphyry Mo and epithermal Ag-Pb-Zn-(Au)deposits.Our study indicates that the emplacement of magmatic-hydrothermal deposits was controlled by the crustal structure and magma sources.Xinming Zhang Xu Zhao Lebing Fu Yanjun Li Andreas Kamradt M.Santosh Chongwen Xu Xiaokun Huang Gregor Borg Junhao Wei 2023Geoscience Frontiers2023,14,6:0
11Promoting Construction of Professional Teacher Team of Acupuncture and Tuina by Artificial Intelligence显示文摘Artificial intelligence is a frontier science for simulating,extending and expanding human intelligence,theoretical methods,technologies and application systems.Through the survey and analysis of the current situation of the integration of artificial intelligence into the construction of the teacher team,the corresponding research plan and path are formulated,and the artificial intelligence is fully integrated with the construction of the professional teacher team of acupuncture and tuina,and specific practices are carried out.The practical research path includes the construction of the corresponding artificial intelligence education analysis system and platform for the teaching staff,the formulation and practice of artificial intelligence training and training plans for the teaching staff,the daily intelligent education of the teaching staff and the sustainable improvement of lifelong intelligent education literacy.Through this study,it is hoped that the teaching ability and level of acupuncture and tuina teachers will be improved,and more new ideas and methods will be provided for the training and education of acupuncture and tuina professionals.Mingjun LIU Xiaochao GANG Shaotao CHEN Chongwen ZHONG Chuping WANG Likun ZHENG Zhengri CONG Peizhe LI 2023Medicinal Plant2023,14,3:0
12Clinicopathologic Analysis of 2,889 Nanchang-Area Patients with Colorectal Polyps显示文摘OBJECTIVE To study the clinicopathologic characteristics, changes in the nature and incidence of colorectal polyps in the Nanchang area, Jiangxi, Province. METHODS We retrospectively investigated the patients with colorectal polyps who were diagnosed by colonoscopy and pathology in our hospital from 1990 to 2004. The analysis involved the incidence, average patient age, polyp location and pathological types. We recorded the changes of the polyp clinicopathologic features by comparing the clinicopathologic types of colorectal polyps over fi ve-year periods. RESULTS Of the 21,853 patients who received a colonoscopy, 2,889(13.2%) were diagnosed with colorectal polyps. Their average age was 46.6±16.5 years, with a male to female ratio of 1.8:1. The males were older than females (47.1±17.5 vs. 45.5±14.5, P<0.05). Location of the polyps: 41% in the rectum, 27.7% in the sigmoid colon, 35.8% in the left side verus 23.1% in the right side (P<0.05). Patients with polyps located in the transverse and ascending colon were older than those with polyps in the rectum and sigmoid colon (P<0.05). Adenomatous polyps comprised the most common type (67%) and the rectum was the most common site for each type, especially juvenile and retention polyps. Juvenile polyps were found in the youngest patients(12±4.8, P<0.05) and the adenomatous in the oldest (52±14, P<0.05). The ratio of patients with polyposis comprised 1.2%, and patients with polyps accompanied with colorectal cancer comprised 6.1%. Examination of the changes in the incidence, the average patient age, and adenomatous type showed that they had all increased, but the frequency of infl ammatory and retention polyps decreased. CONCLUSION Colorectal polyps are a common problem. The frequency is greater in males compared to females and the rectum and sigmoid colon had the highest incidence. Most juvenile and retention polyps were found in young patients, but most adenomatous occurred in adults. In recent years, the incidence of colorectal polyps, the average patient age, and the adenomatous type have increased in the Nanchang area, but inflammatory and retention types decreased.Guohua Li Wangdi Liao Ping Xu Nonghua Lv Chongwen Wang 2007Chinese Journal of Clinical Oncology2007,4,1:0
13Wireless communications empowered by reconfigurable intelligent surfaces: Model-based vs model-free channel estimation显示文摘Reconfigurable intelligent surfaces(RISs)are lately being attractive for their great potential in future sixth generation wireless communications(6G),which is attributed to their affordable energy consumption and easy integration.However,the large numbers of low-cost reflecting elements comprising RISs impose challenges for channel acquisition in various RIS-based wireless applications,such as RIS-enhanced orthogonal frequency-division multiplexing and multi-user multipleinput multiple-output systems.In this article,we first overview the state-of-the-art RIS hardware architectures designed to assist channel estimation for RIS-empowered wireless communication systems.We also overview existing channel estimation approaches,which are categorized into model-based and model-free techniques,and discuss their advantages and limitations depending on the RIS deployment.Design challenges with RIS-empowered systems in terms of hardware and other parameter limitations are presented,together with future research directions for channel estimation in RIS-based wireless systems,such as RISs with extremely large numbers of elements,multi-hop communications with RISs,and frequency division duplexing for high mobility systems.Li Wei Chongwen Huang George C.Alexandropoulos Ahmet M.Elbir Zhaohui Yang Zhaoyang Zhang Marco Di Renzo Merouane Debbah Chau Yuen 2023Journal of Information and Intelligence2023,1,3:0
14One-pot synthesis of 5-hydroxymethylfurfural from glucose over zirconium doped mesoporous KIT-6显示文摘Zirconium doped mesoporous KIT-6 samples with different Si/Zr ratios were synthesized by the direct hydrothermal method.Various characterization techniques confirm that highly distributed ZrO_2 nanoparticles and multicoordinated Zr^(4+) species are incorporated in the mesoporous composites.One-pot synthesis of 5-hydroxymethylfurfura(HMF) from glucose was examined in the presence of Zr-KIT-6(20) the molar ratio of Si to Zr is 20 under aqueous system.The effects of temperature,reaction time,catalyst dosage and biphasic solvent system on the conversion of glucose and the HMF yield were investigated.It was found that the glucose conversion and the HMF yield have been improved from 54.8% to 79.0% and from 19.5% to 34.5% in the biphasic MIBK-water system,respectively.Both the acidity of Zr-KIT-6(20) and the biphasic MIBK-water system are responsible for the improved performance of glucose dehydration to HMF.Chongwen Jiang Jundong Zhu Bing Wang Lu Li Hong Zhong 2018Chinese Journal of Chemical Engineering2018,26,6:0
15Investigation of pressure wave behaviors in the rotational speed effects on a pressure-exchange wave rotor显示文摘A wave rotor is suitable for compact and efficient pressure-exchange between gas flows.This work measured the circumferential pressure distribution of the rotor/stator interfaces and utilized a CFD method to simulate the unsteady pressure waves.The experimental and CFD results showed some slopes in the circumferential pressure distributions,and the slopes indicated the traces of specific unsteady pressure waves.Such traces varied regularly if the rotational speed varied within a range from-11%to+11%off the baseline value,but they were seriously disturbed if the rotational speed varied by-45%from the baseline value.It verified that a pressure wave in a wave rotor tended to keep its pressure ratio and propagation velocity unchanged if the rotational speed varied by a small extent,and that the pressure wave could not keep its propagation patterns if the rotational speed varied by a large extent.Because of the pressure wave behaviors,the wave rotor demonstrated specific regulations of the rotational speed effects on its operational states.Shining CHAN Huoxing LIU Hang SONG Fengchao LI Chongwen JIANG Zhenxun GAO 2022Chinese Journal of Aeronautics2022,35,5:0
16The effect of ergosterol on the allogrooming behavior of termites in response to the entomopathogenic fungus Metarhiziumanisopliae显示文摘Termites have physiological and behavioral immunities that make them highly resistant to pathogen infections,which complicates biocontrol efforts.However,the stimuli that trigger the pathogen-avoidance behaviors of termites are still unclear.Our study shows that workers of Coptotermes formosanus exposed to the conidia of Metarhizium anisopliae exhibited a significantly higher frequency and longer duration of allogrooming behaviors compared with untreated termites.Volatile compounds in the cuticle of control termites and termites previously exposed to a suspension of M.anisopliae conidia were analyzed and compared using a gas chromatography-mass spectrometer(GC-MS).Our results showed that the amount of ergosterol differed between the fungus-exposed and control termites.Choice tests showed that termites significantly preferred to stay on filter paper treated with ergosterol(0.05,0.1,or 1.0 mg/mL)compared with control filter paper.In addition,termites exposed to ergosterol followed by M.anisopliae conidia were allogroomed at a significantly higher frequency and for a longer duration than termites exposed to alcohol(the solvent used with the ergosterol in the ergosterol trials)alone followed by M.anisopliae conidia.These results showed that ergosterol may enhance the allogrooming behavior of termites in the presence of entomopathogenic fungi.Yong Chen Chongwen Zhao Wenhui Zeng Wenjing Wu Shijun Zhang Dandan Zhang Zhiqiang Li 2023Insect Science2023,30,1:0
17Effects of Tuina on Obesity-Induced Insulin Resistance and Cognitive Dysfunction显示文摘This paper discusses the mechanism of insulin resistance in obesity from the research progress of Chinese and Western medicine and its oxidative stress,inflammatory reaction and abnormal lipid metabolism in cognitive dysfunction.It also reviews the research progress of massage,one of the external treatment methods of traditional Chinese medicine,in the treatment of insulin resistance and cognitive dysfunction in obesity,in order to provide more new ideas and new ways for clinical diagnosis and treatment of insulin resistance and related cognitive dysfunction caused by obesity.Mingjun LIU Xiaochao GANG Chongwen ZHONG Shaotao CHEN Yuxing TAI Yi TAN Likun ZHENG Zhengri CONG Sixian WANG Peizhe LI Qifan GUAN Yiduo LI 2023Medicinal Plant2023,14,1:0
18Effect of Acupressure Therapy on Anti-inflammatory Mechanism in Obesity-induced IR Rats显示文摘[Objectives] To study the effect of 'acupressure therapy' on anti-inflammatory mechanism in obesity-induced IR rats. [Methods] 10 rats were randomly selected and fed with normal diet as blank group, and the remaining 30 rats were fed with high-fat diet for 8 weeks. The obesity-induced IR model was induced and divided into two groups: model group and acupressure group. The acupressure group was treated by 'acupressure therapy' three times a week for 6 weeks;the model group was taken 3 times at the same time every week, and the supine binding experiment lasted for 10 min for 6 weeks. Morphological observation was carried out before and after the experiment, mainly observing the general conditions and body weight. After the last intervention, the animals were killed and samples were collected. Western Blot method was used to detect the expression of TNF-α and IL-6 protein in adipose tissue of the three groups. [Results] Compared with the blank group, the expression of TNF-α and IL-6 protein in adipose tissue of the model group increased significantly ( P <0.01);compared with the model group, the expression of TNF-α and IL-6 protein in adipose tissue of the acupressure group decreased significantly ( P <0.01). [Conclusions] After intervening in the obesity-induced IR rats with acupressure method, the status of insulin resistance in obese rats was improved by inhibiting the expression of inflammatory factors.Xiaochao GANG Mingjun LIU Tianjiao GAO Yuxing TAI Yi TAN Dongmei ZHANG Chongwen ZHONG Shaotao CHEN Rongsheng JIANG Zhengri CONG Likun ZHENG Peizhe LI 2023Medicinal Plant2023,14,4:0
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