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| 1 | Effect of hepatitis C virus infection on expression of several cancer-associated gene products in hepatocellular carcinoma显示文摘NTRODUCTIONOurpreviousstudiesbyseroepidemiological,molecularepidemiologicalandimmunopathologicalmethodshaverevealedthathepa... | YANG Jian Min, WANG Rong Quan, BU Bao Guo, ZHOU Zi Cheng, FANG Dian Chun and LUO Yuan Hui | 1999 | World Journal of Gastroenterology1999,5,1: | 42 |
| 2 | Enhanced secondary pollution offset reduction of primary emissions during COVID-19 lockdown in China显示文摘To control the spread of the 2019 novel coronavirus(COVID-19),China imposed nationwide restrictions on the movement of its population(lockdown)after the Chinese New Year of 2020,leading to large reductions in economic activities and associated emissions.Despite such large decreases in primary pollution,there were nonetheless several periods of heavy haze pollution in eastern China,raising questions about the well-established relationship between human activities and air quality.Here,using comprehensive measurements and modeling,we show that the haze during the COVID lockdown was driven by enhancements of secondary pollution.In particular,large decreases in NOx emissions from transportation increased ozone and nighttime NO_(3)radical formation,and these increases in atmospheric oxidizing capacity in turn facilitated the formation of secondary particulate matter.Our results,afforded by the tragic natural experiment of the COVID-19 pandemic,indicate that haze mitigation depends upon a coordinated and balanced strategy for controlling multiple pollutants. | Xin Huang Aijun Ding Jian Gao Bo Zheng Derong Zhou Ximeng Qi Rong Tang Jiaping Wang Chuanhua Ren Wei Nie Xuguang Chi Zheng Xu Liangduo Chen Yuanyuan Li Fei Che Nini Pang Haikun Wang Dan Tong Wei Qin Wei Cheng Weijing Liu Qingyan Fu Baoxian Liu Fahe Chai Steven JDavis Qiang Zhang Kebin He | 2021 | National Science Review2021,8,2: | 47 |
| 3 | Volumetric-modulated arc therapy vs c-IMRT in esophageal cancer:A treatment planning comparison显示文摘AIM:To compare the volumetric-modulated arc therapy AT plans ith conventional sliding indo intensity-modulated radiotherapy c-I RT plans in esophageal cancer EC . METHODS:Tenty patients ith EC ere selected, including 5 cases located in the cervical, the upper, the middle and the lo er thorax, respectively. Five plans ere generated ith the eclipse planning system:three using c-IMRT with 5 fields (5F), 7 fields (7F) and 9 fields (9F), and two using VMAT with a single arc 1A and double arcs 2A . The treatment plans ere designed to deliver a dose of 60 Gy to the plan-ning target volume Tith the same constrains in a 2.0 Gy daily fraction, 5 d a eek. lans ere normalized to 95% of the T that received 100% of the prescribed dose. We examined the dose-volume histogram parameters of T and the organs at risk OAR such as lungs, spinal cord and heart. onitor units U and normal tissue complication probability NTC of OAR ere also reported. RESULTS:Both c-I RT and AT plans resulted in abundant dose coverage of T for EC of different locations. The dose conformity to T as improved as the number of field in c-IMRT or rotating arc in VMAT as increased. The doses to T and OAR in AT plans ere not statistically different in comparison ith c-I RT plans, ith the follo ing exceptions:in cervical and upper thoracic EC, the conformity index CI as higher in VMAT (1A 0.78 and 2A 0.8) than in c-IMRT (5F 0.62, 7F 0.66 and 9F 0.73) and homogeneity was slightly better in c-IMRT (7F 1.09 and 9F 1.07) than in VMAT (1A 1.1 and 2A 1.09). Lung V30 was lower in VMAT (1A 12.52 and 2A 12.29) than in c-IMRT (7F 14.35 and 9F 14.81). The humeral head doses were significantly increased in AT as against c-I RT. In the middle and lower thoracic EC, CI in VMAT (1A 0.76 and 2A 0.74) was higher than in c-IMRT (5F 0.63 Gy and 7F 0.67 Gy), and homogeneity was almost similar bet een AT and c-I RT. 20 2A 21.49 Gy vs 7F 24.59 Gy and 9F 24.16 Gy) and V30 (2A 9.73 Gy vs 5F 12.61 Gy, 7F 11.5 Gy and 9F 11.37 Gy) of lungs in AT ere lo er than in c-I RT, but lo doses to lungs (V5 and V10) were increased. V30 (1A 48.12 Gy vs 5F 59.2 Gy, 7F 58.59 Gy and 9F 57.2 Gy), V40 and 50 of heart in AT as lo er than in c-I RT. Us in AT plans ere significantly reduced in comparison ith c-I RT, maximum doses to the spinal cord and mean doses of lungs ere similar bet een the t o techniques. NTC of spinal cord as 0 for all cases. NTC of lungs and heart in AT ere lo er than inc-I RT. The advantage of AT plan as enhanced by doubling the arc. CONCLUSION:Compared ith c-I RT, AT, especially the 2A, slightly improves the OAR dose sparing, such as lungs and heart, and reduces NTC and U ith a better T coverage. | Li Yin Hao Wu Jian Gong Jian-Hao Geng Fan Jiang An-Hui Shi Rong Yu Yong-Heng Li Shu-Kui Han Bo Xu Guang-Ying Zhu | 2012 | World Journal of Gastroenterology2012,18,37: | 34 |
| 4 | Telomerase activity in gastric cancer and its clinical implications显示文摘INTRODUCTIONThedevelopmentofcarcinomaresultsfrommultipleindependentgeneticchangesthatactivateprotooncogenesorinactivatetheac... | ZHAN Wen Hua, MA Jin Ping, PENG Jun Sheng, GAO Jing Song, CAI Shi Rong, WANG Jian Ping, ZHENG Zhang Qing and WANG Lei | 1999 | World Journal of Gastroenterology1999,5,4: | 25 |
| 5 | Relationship between expression of CD44v6 and nm23-H1 and tumor invasion and metastasis in hepatocellular carcinoma显示文摘INTRODUCTIONCD44isacelsurfacetransmembraneglycoprotein.Asakindofadhesivemolecule,itparticipatesincelcelandcelmatrixadhesion... | XIAO Cheng Zhi, DAI Yi Min, YU Hong Yu, WANG Jian Jun and NI Can Rong | 1998 | World Journal of Gastroenterology1998,4,5: | 23 |
| 6 | BMI, WC, WHtR, VFI and BFI: Which Indictor is the Most Efficient Screening Index on Type 2 Diabetes in Chinese Community Population显示文摘Objective Obesity is a major risk factor for type 2 diabetes, many indexes can be used to describes obesity and predict diabetes. This research attempts to identify the best indicator of obesity to screening diabetes in Chinese population. Methods A cross-sectional data of 8121 subjects aged 35-60 years were included in this research belongs to the Diabetes Appropriate Technology Intervention Study. Anthropometric indicators including body weight, height, waist circumferences (WC), body fat index (BFI) and visceral fat index (VFI) and blood biochemical indicators after an overnight fast [fasting blood glucose, total cholesterol, high-density lipoprotein (HDL) cholesterol, and triacylglycerol] were measured. BMI (body mass index) and Weight to Height Ratio was calculated. Results Subjects with obesity had a higher risk of physician diagnosed diabetes (OR=2.50, 95% CI 1.83-3.43), new diagnosed diabetes (OR=4.23, 95% CI 2.91-6.15) and pre-diabetes (OR=1.75, 95% CI 1.31-2.34) compared to those with normal Body mass index (BMI). There was a significant trend of increased risk of all diabetes status with increased waist circumference (WC). The waist-to-height ratio (WHtR) yielded the most significant association with new diagnosed diabetes and physician diagnosed diabetes than other indices. Conclusion Central obesity is significantly correlated with diabetes. VFI was most correlated with pre-diabetes while WHtR is an efficient screening index than BMI and WC in Chinese community diabetes screening. | MI Sheng Quan YIN Peng HU Nan LI Jian Hong CHEN Xiao Rong CHEN Bo YAN Liu Xia ZHAO Wen Hua | 2013 | Biomedical and Environmental Sciences2013,26,6: | 20 |
| 7 | Genome-scale profiling of circulating cell-free DNA signatures for early detection of hepatocellular carcinoma in cirrhotic patients显示文摘Dear Editor,Hepatocellular carcinoma(HCC)is the second most deadly cancer worldwide.1 Cirrhosis of different causes predisposes patients to HCC,increasing the annual HCC incidence by 2%–4%.1 The development of cirrhosis facilitates a series of genetic or epigenetic changes,resulting in the formation of dysplastic nodules,a premalignant stage in HCC.1 HCC diagnosis at an early stage contributes to an improved prognosis with the possibility of curative treatment.Due to the low accuracy of current diagnostic methods,it is urgently needed to explore new non-invasive strategies for early HCC diagnosis in cirrhotic patients. | Lei Chen Ghassan K.Abou-Alfa Bo Zheng Jing-Feng Liu Jian Bai Lu-Tao Du Yun-Song Qian Rong Fan Xiao-Long Liu Lin Wu Jin-Lin Hou Hong-Yang Wang The PreCar Team | 2021 | Cell Research2021,31,5: | 20 |
| 8 | Nuclear factor kappa B: A marker of chemotherapy for human stage Ⅳ gastric carcinoma显示文摘AIM: To detect the nuclear factor kappa B (NF-κB) condition in human stage Ⅳ gastric carcinoma patients and to explore the correlation between NF- κB activation and survival of these patients after chemotherapy. METHODS: Expression of NF-κB-p65 was determined by immunohistochemical analysis. Activity of NF- κB DNA-binding in carcinoma tissue was detected by electrophoretic mobility shift assay. Kaplan-Meier survival analysis was performed to show the relation between NF-κB and progression-free survival (PFS) or overall survival (OS) of the patients. RESULTS: The positive expression rate of NF-κB-p65 in 60 gastric cancer tissue samples was 76.7% (46/60). The expression of NF-κB-p65 was reduced in adjacent carcinoma and normal tissue samples. Electrophoretic mobility shift assay (EMSA) analysis showed a strong activation of NF-κB in cancer tissue samples. A survival difference was found in NF- κB-p65 positive and negative patients. NF-κB-p65 expression was negative in cancer tissue samples (n = 14). PFS was 191.40 ± 59.88 d and 152.93 ± 16.99 d, respectively, in patients with positive NF- κB-p65 expression (n = 46) (P = 0.4028). Thesurvival time of patients with negative and positive NF-κB-p65 expression was 425.16 ± 61.61 d and 418.85 ± 42.98 d, respectively (P = 0.7303). Kaplan-Meier analysis showed no significant difference in PFS or OS. The 46 patient tissue which positive NF- κB-p65 expression was found in the tissue samples from the 46 patients whose PFS and OS were 564.89 ± 75.94 d and s 352.37 ± 41.32 d, respectively (P = 0.0165). CONCLUSION: NF-κB is activated in gastric carcinoma tissue, which is related to the OS after chemotherapy. | Sheng Ye You-Ming Long Jian Rong Wen-Rui Xie | 2008 | World Journal of Gastroenterology2008,14,30: | 18 |
| 9 | Kaempferol protects ethanol-induced gastric ulcers in mice via pro-inflammatory cytokines and NO显示文摘胃的溃疡(GU ) 是在全世界影响许多人的普通病理。过多的白酒消费是 GU 的主要原因之一;然而,仍然有为 GU 的预防或治疗的有效的药的缺乏。在这研究,我们在老鼠把保护的效果和 kaempferol (KAE ) 的可能的机制与尖锐导致乙醇的损害作比较到胃的 mucosa。Fasted 老鼠口头上地被给车辆(0.9% 盐) , omeprazole (20 mg/kg ) ,或为在在由有绝对乙醇(10 ml/kg ) 的挑战的 GU 模型的建立以前的不同试验性的集合的 1 h 的 KAE (40, 80,或 160 mg/kg ) 。动物是 euthanized 在乙醇吸入以后的 1 h,和他们的血浆和胃纸巾服从于进一步的检查。宏观、显微镜的损害,和免疫学的和生物化学的参数被观察。发炎的效果用下列指示物被调查:肿瘤坏死因素 --(TNF-) , interleukin-1 (IL-1 ) , IL-6, myeloperoxidase (军邮局) ,和氮的氧化物(没有) 。结果证明 KAE 显著地减少了溃疡索引,增加了预防索引,完全保护了 mucosa 免受损害,和保存胃的 mucosal glycoprotein 的伤害。KAE 减少了军邮局活动和支持 inflammatory cytokine (TNF- ,和 IL-1 ) 铺平,并且没改进层次。KAE 的 gastroprotective 活动可能被归因于胃的有粘液的 glycoproteins 层次的保藏,这样由禁止嗜中性的累积和军邮局活动,调整支持 inflammatory cytokines 的层次,并且不改进生产。 | Qinchen Li Xinxin Hu Yanhan Xuan Jianghua Ying Yujia Fei Jielu Rong Yong Zhang Jian Zhang Chunyan Liu Zheng Liu | 2018 | Acta Biochimica et Biophysica Sinica2018,50,3: | 18 |
| 10 | Gearbox Fault Diagnosis using Adaptive Zero Phase Time-varying Filter Based on Multi-scale Chirplet Sparse Signal Decomposition显示文摘When used for separating multi-component non-stationary signals, the adaptive time-varying filter(ATF) based on multi-scale chirplet sparse signal decomposition(MCSSD) generates phase shift and signal distortion. To overcome this drawback, the zero phase filter is introduced to the mentioned filter, and a fault diagnosis method for speed-changing gearbox is proposed. Firstly, the gear meshing frequency of each gearbox is estimated by chirplet path pursuit. Then, according to the estimated gear meshing frequencies, an adaptive zero phase time-varying filter(AZPTF) is designed to filter the original signal. Finally, the basis for fault diagnosis is acquired by the envelope order analysis to the filtered signal. The signal consisting of two time-varying amplitude modulation and frequency modulation(AM-FM) signals is respectively analyzed by ATF and AZPTF based on MCSSD. The simulation results show the variances between the original signals and the filtered signals yielded by AZPTF based on MCSSD are 13.67 and 41.14, which are far less than variances (323.45 and 482.86) between the original signals and the filtered signals obtained by ATF based on MCSSD. The experiment results on the vibration signals of gearboxes indicate that the vibration signals of the two speed-changing gearboxes installed on one foundation bed can be separated by AZPTF effectively. Based on the demodulation information of the vibration signal of each gearbox, the fault diagnosis can be implemented. Both simulation and experiment examples prove that the proposed filter can extract a mono-component time-varying AM-FM signal from the multi-component time-varying AM-FM signal without distortion. | WU Chunyan LIU Jian PENG Fuqiang YU Dejie LI Rong | 2013 | Chinese Journal of Mechanical Engineering2013,26,4: | 16 |
| 11 | Prevalence, awareness, treatment, and control of hypertension in the non-dialysis chronic kidney disease patients显示文摘 | ZHENG Ying CAI Guang-yan CHEN Xiang-mei FU Ping CHEN Jiang-hua DING Xiao-qiang YU Xue-qing LIN Hong-li LIU Jian XIE Ru-juan WANG Li-ning NI Zhao-hui LIU Fu-you YIN Ai-ping XING Chang-ying WANG Li SHI Wei LIU Jian-she HE Ya-ni DING Guo-hua LI Wen-ge WU Guang-li MIAO Li-ning CHEN Nan SU Zhen MEI Chang-lin ZHAO Jiu-yang GU Yong BAI Yun-kai LUO Hui-min LIN Shan CHEN Meng-hua GONG Li YANG Yi-bin YANG Xiao-ping LI Ying WAN Jian-xin WANG Nian-song LI Hai-ying XI Chun-sheng HAO Li XU Yan FANG Jing-ai LIU Bi-cheng LI Rong-shan WANG Rong ZHANG Jing-hong WANG Jian-qin LOU Tan-qi SHAO Feng-min MEI Feng LIU Zhi-hong YUAN Wei-jie SUN Shi-ren ZHANG Ling ZHOU Chun-hua CHEN Qin-kai JIA Shun-lian GONG Zhi-feng GUAN Guang-ju XIA Tian ZHONG Liang-bao | 2013 | Chinese Medical Journal2013,,12: | 16 |
| 12 | The CAMS Climate System Model and a Basic Evaluation of Its Climatology and Climate Variability Simulation显示文摘A new coupled climate system model(CSM) has been developed at the Chinese Academy of Meteorological Sciences(CAMS) by employing several state-of-the-art component models. The coupled CAMS-CSM consists of the modified atmospheric model [ECmwf-HAMburg(ECHAM5)], ocean model [Modular Ocean Model(MOM4)], sea ice model [Sea Ice Simulator(SIS)], and land surface model [Common Land Model(CoLM)]. A detailed model description is presented and both the pre-industrial and 'historical' simulations are preliminarily evaluated in this study.The model can reproduce the climatological mean states and seasonal cycles of the major climate system quantities,including the sea surface temperature, precipitation, sea ice extent, and the equatorial thermocline. The major climate variability modes are also reasonably captured by the CAMS-CSM, such as the Madden–Julian Oscillation(MJO), El Ni?o–Southern Oscillation(ENSO), East Asian Summer Monsoon(EASM), and Pacific Decadal Oscillation(PDO).The model shows a promising ability to simulate the EASM variability and the ENSO–EASM relationship. Some biases still exist, such as the false double-intertropical convergence zone(ITCZ) in the annual mean precipitation field,the overestimated ENSO amplitude, and the weakened Bjerknes feedback associated with ENSO; and thus the CAMS-CSM needs further improvements. | Xinyao RONG Jian LI Haoming CHEN Yufei XIN Jingzhi SU Lijuan HUA Tianjun ZHOU Yanjun QI Zhengqiu ZHANG Guo ZHANG Jianduo LI | 2018 | Journal of Meteorological Research2018,32,6: | 15 |
| 13 | The Genetic Architecture of Flowering Time and Photoperiod Sensitivity in Maize as Revealed by QTL Review and Meta Analysis显示文摘The control of flowering is not only important for reproduction,but also plays a key role in the processes of domestication and adaptation.To reveal the genetic architecture for flowering time and photoperiod sensitivity,a comprehensive evaluation of the relevant literature was performed and followed by meta analysis.A total of 25 synthetic consensus quantitative trait loci(QTL)and four hot-spot genomic regions were identified for photoperiod sensitivity including 11 genes related to photoperiod response or flower morphogenesis and development.Besides,a comparative analysis of the QTL for flowering time and photoperiod sensitivity highlighted the regions containing shared and unique QTL for the two traits.Candidate genes associated with maize flowering were identified through integrated analysis of the homologous genes for flowering time in plants and the consensus QTL regions for photoperiod sensitivity in maize(Zea mays L.).Our results suggest that the combination of literature review,meta-analysis and homologous blast is an efficient approach to identify new candidate genes and create a global view of the genetic architecture for maize photoperiodic flowering.Sequences of candidate genes can be used to develop molecular markers for various models of marker-assisted selection,such as marker-assisted recurrent selection and genomic selection that can contribute significantly to crop environmental adaptation. | Jie Xu Yaxi Liu Jian Liu Moju Cao Jing Wang Hai Lan Yunbi Xu Yanli Lu Guangtang Pan Tingzhao Rong | 2012 | Journal of Integrative Plant Biology2012,54,6: | 14 |
| 14 | Long-term efectiveness of infancy low-dose hepatitis B vaccine immunization in Zhuang minority area in China显示文摘METHODSTwoepidemiologicmethods,acrosssectionalfolowupstudyandacasecontrolstudy,wereusedfortheevaluationoftheserologicalef... | LI Hui 1, LI Rong Cheng 2, LIAO Su Su 1, GONG Jian 2, ZENG Xian Jia 1 and LI Yan Ping 2 | 1999 | World Journal of Gastroenterology1999,5,2: | 14 |
| 15 | Clinical characteristics of human infection with a novel avian-origin influenza A(H10N8) virus显示文摘 | Zhang Wei Wan Jianguo Qian Kejian Liu Xiaoqing Xiao Zuke Sun Jian Zeng Zhenguo Wang Qi Zhang Jinxiang Jiang Guanghui Nie Cheng Jiang Rong Ding Chengzhi Li Ran Horby Peter Gao Zhancheng | 2014 | Chinese Medical Journal2014,,18: | 12 |
| 16 | Association of Optic Radiation Integrity with Cortical Thickness in Children with Anisometropic Amblyopia显示文摘Previous studies have indicated regional abnormalities of both gray and white matter in amblyopia.However, alterations of cortical thickness associated with changes in white matter integrity have rarely been reported.In this study, structural magnetic resonance imaging and diffusion tensor imaging(DTI) data were obtained from 15 children with anisometropic amblyopia and 15 age- and gender-matched children with normal sight. Combining DTI and surface-based morphometry, we examined a potential linkage between disrupted white matter integrity and altered cortical thickness. The fractional anisotropy(FA) values in the optic radiations(ORs) of children with anisometropic amblyopia were lower than in controls(P \ 0.05). The cortical thickness in amblyopic children was lower than controls in the following subregions: lingual cortex, lateral occipitotemporal gyrus, cuneus, occipital lobe, inferior parietal lobe, and temporal lobe(P \ 0.05, corrected), but was higher in the calcarine gyrus(P \ 0.05, corrected). Node-by-node correlation analysis of changes in cortical thickness revealed a significant association between a lower FA value in the OR and diminished cortical thickness in the following subregions:medial lingual cortex, lateral occipitotemporal gyrus, lateral, superior, and medial occipital cortex, and lunate cortex. We also found a relationship between changes of cortical thickness and white matter OR integrity in amblyopia. These findings indicate that developmental changes occur simultaneously in the OR and visual cortex in amblyopia, and provide key information on complex damage of brain networks in anisometropic amblyopia. Our results also support the hypothesis that the pathogenesis of anisometropic amblyopia is neurodevelopmental. | Shun Qi Yun-Feng Mu Long-Biao Cui Rong Li Mei Shi Ying Liu Jun-Qing Xu Jian Zhang Jian Yang Hong Yin | 2016 | Neuroscience Bulletin2016,32,1: | 12 |
| 17 | Climate Sensitivity and Feedbacks of a New Coupled Model CAMS-CSM to Idealized CO_2 Forcing: A Comparison with CMIP5 Models显示文摘Climate sensitivity and feedbacks are basic and important metrics to a climate system. They determine how large surface air temperature will increase under CO_2 forcing ultimately, which is essential for carbon reduction policies to achieve a specific warming target. In this study, these metrics are analyzed in a climate system model newly developed by the Chinese Academy of Meteorological Sciences(CAMS-CSM) and compared with multi-model results from the Coupled Model Comparison Project phase 5(CMIP5). Based on two idealized CO_2 forcing scenarios, i.e.,abruptly quadrupled CO_2 and CO_2 increasing 1% per year, the equilibrium climate sensitivity(ECS) and transient climate response(TCR) in CAMS-CSM are estimated to be about 2.27 and 1.88 K, respectively. The ECS is near the lower bound of CMIP5 models whereas the TCR is closer to the multi-model ensemble mean(MME) of CMIP5 due to compensation of a relatively low ocean heat uptake(OHU) efficiency. The low ECS is caused by an unusually negative climate feedback in CAMS-CSM, which is attributed to cloud shortwave feedback(λSWCL) over the tropical Indo-Pacific Ocean.The CMIP5 ensemble shows that more negative λSWCL is related to larger increase in low-level(925–700 hPa)cloud over the tropical Indo-Pacific under warming, which can explain about 90% of λSWCL in CAMS-CSM. Static stability of planetary boundary layer in the pre-industrial simulation is a critical factor controlling the low-cloud response and λSWCL across the CMIP5 models and CAMS-CSM. Evidently, weak stability in CAMS-CSM favors lowcloud formation under warming due to increased low-level convergence and relative humidity, with the help of enhanced evaporation from the warming tropical Pacific. Consequently, cloud liquid water increases, amplifying cloud albedo, and eventually contributing to the unusually negative λSWCL and low ECS in CAMS-CSM. Moreover, the OHU may influence climate feedbacks and then the ECS by modulating regional sea surface temperature responses. | Xiaolong CHEN Zhun GUO Tianjun ZHOU Jian LI Xinyao RONG Yufei XIN Haoming CHEN Jingzhi SU | 2019 | Journal of Meteorological Research2019,33,1: | 11 |
| 18 | Nearfield acoustic holography based on the equivalent source method显示文摘On the basis of the nearfield acoustic holography (NAH) based on the distributed source boundary point method (DSBPM), a novel NAH based on the equivalent source method (ESM) is proposed. The theoretical model of the proposed method is established at first. And then, the error sensitivity and the reconstruction problems of a multi-source acoustic field and a semi-free acoustic field are analyzed, and the corresponding treatment methods are proposed. Subsequently, an experiment on a speaker is investigated to validate the feasibility and correctness of the method. In the method, no discretization is needed on the boundary of the vibrating body. The acoustic field is predicted directly by a set of weighted equivalent sources located inside the vibrating body. Therefore, the variable interpolation, the treatments of singular integrals and non-uniqueness of solutions in the characteristic wave number are avoided. Additionally, the method is adapted to arbitrary-shaped source, so it is really a meshless method. Furthermore, there are such merits as the simple principle, the high calculation efficiency and precision. It is valuabe for the NAH to be applied in the practical engineering field. | BI Chuanxing CHEN Xinzhao CHEN Jian ZHOU Rong | 2005 | Science China(Technological Sciences)2005,48,3: | 11 |
| 19 | Chemical constituents from Schisandra sphenanthera显示文摘五味子 sphenanthera 的茎的化学成分第一次被描述。这调查导致了新酉分的 glycoside (1 ) 的隔离,与七已知的混合物一起。1 的结构被使用分光镜的技术分配,包括 2D NMR 系列。 | Rong Tao Li Zhi Ying Weng Jian Xin Pu Han Dong Sun | 2008 | Chinese Chemical Letters2008,19,6: | 11 |
| 20 | 生物合理设计光系统Ⅱ抑制剂研究(Ⅱ)3-苯甲氨基-2-氰基-3-甲硫基丙烯酸乙酯的晶体及分子结构显示文摘合成了具有良好光合作用抑制活性的标题化合物,测定了其晶体结构.确定了该类化合物的顺反构型,阐明了苯环与氨基间亚甲基对化合物抑制活性的重要作用,解释了氨基氢与酯羰基氧间没有形成氢键的原因. | LIU Hua Yin *, YANG Guang Fu, LU Rong Jian, TAN Hui Fen, YANG Hua Zheng (The Institute of Elemento Organic Chemistry, National Elemento Organic Chemistry Key Laboratory, Nankai University, Tianjin, 300071) LAI Lu Hua (The Institute of Physical Chemist | 1998 | 高等学校化学学报1998,19,6: | 10 |