|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 影响慢性阻塞性肺病急性加重患者生活质量的危险因素显示文摘目的测定和评价慢性阻塞性肺病(COPD)急性加重患者的生活质量和潜在危险因素的发生率及其影响。方法研究两家大型医院因COPD急性加重入院的196个中重度COPD患者。在患者出院时和出院后1月稳定状态,测量肺功能指标、精神状态及用圣乔治呼吸问卷测定生活质量,并收集了患者的临床性状、社会性状和照料因素。结果196例患者中,吸烟、抑郁及嗜用镇痛剂、安眠药相当普遍,而完成肺康复、接种流感病毒疫苗和肺炎球菌疫苗以及看护支持却很少。生活质量的症状域均值为55.9,活动域均值为65,影响域均值为32.9,总体均值为46.5。多变量分析显示慢性黏液高分泌症、男性、抑郁、前1年多次入院和治疗依顺性差与症状域值低下独立显著相关;前1年多次入院、抑郁、严重气促和72岁以上老年与活动域值低下独立显著相关;抑郁、前1年多次入院、严重气促、病程长和重度吸烟与影响域值低下独立显著相关;抑郁、前1年多次入院、严重气促和病程长与总体数值低下独立显著相关(P<0.05)。结论COPD急性加重患者的生活质量低下与COPD严重程度、患者精神抑郁状态及照料这些可改善因素有关。 | 曹振英 Tan Wan Cheng Ng Tze Pin | 2005 | 上海第二医科大学学报2005,25,7: | 10 |
| 2 | Assessing the Effectiveness of a Cervical Cancer Screening Program in a Hospital-based Study显示文摘This study compared HPV testing and liquid-based cytology(LCT)as performance indicators for cervical cancer screening in a hospital-based study.A total of 61,193 outpatients were screened initially by LCT.Samples with screening results showing atypical squamous cells of undetermined significance(ASC-US)or worse were referred for colposcopy,and some | YANG Yi LANG Jing He WANG You Fang CHENG Xue Mei CAI Yu Pin LI Hui ZHU Bao Li ZHANG Rui Fen | 2015 | Biomedical and Environmental Sciences2015,28,1: | 10 |
| 3 | Fourth C hinese National Consensus Report on the management of H elicobacter pylori infection显示文摘 | Wen Zhong Liu Yong Xie Hong Cheng Nong Hua Lu Fu Lian Hu Wan Dai Zhang Li Ya Zhou Ye Chen Zhi Rong Zeng Chong Wen Wang Shu Dong Xiao Guo Zong Pan Pin Jin Hu | 2013 | Journal of Digestive Diseases2013,,5: | 9 |
| 4 | 慢性阻塞性肺疾病急性加重患者频繁再入院与其危险因素显示文摘目的 评价慢性阻塞性肺疾病 (COPD)患者急性加重频繁入院的危险因素。方法 调查两家大型医院因COPD急性加重入院的 196名中重度COPD患者。在患者出院时和出院后一个月稳定状态 ,收集患者的临床性状、社会性状、日常护理因素和过去一年中急性加重入院的频率 ,测定肺功能指标及精神状态。结果 196例COPD患者中 ,72 %过去一年中有一次以上再入院 ,4 8%有 2次以上 ,8%有超过 10次再入院。单变量分析显示男性、病程长、嗜用镇痛剂和安眠药、第 1秒用力呼气容量占预计值的百分比 (FEV1% ) <4 5 %、缺乏肺康复训练和严重气促与频繁再入院有显著相关性 (P <0 .0 5 )。多变量分析显示病程长 (OR =2 .6 0 )、FEV1% <4 5 % (OR =2 .0 3)、严重气促 (OR =2 .5 0 )和男性 (OR =3.13)与COPD急性加重再入院有独立显著相关性 (P <0 .0 5 )。结论 COPD急性加重频繁再入院与COPD严重程度。 | 曹振英 Tan Wan Cheng Ng Tze Pin | 2005 | 中国临床保健杂志2005,8,1: | 5 |
| 5 | Rotorcraft flight endurance estimation based on a new battery discharge model显示文摘To avoid the numerical complexities of the battery discharge law of electric-powered rotorcrafts,this study uses the Kriging method to model the discharge characteristics of Li-Po batteries under standard conditions.A linear current compensation term and an ambient temperature compensation term based on radial basis functions are then applied to the trained Kriging model,leading to the complete discharged capacity-terminal voltage model.Using an orthogonal experimental design and a sequential method,the coefficients of the current and ambient temperature compensation terms are determined through robust optimization.An endurance calculation model for electric-powered rotorcrafts is then established,based on the battery discharge model,through numerical integration.Laboratory tests show that the maximum relative error of the proposed discharged capacity-terminal voltage model at detection points is 0.0086,and that of the rotorcraft endurance calculation model is 0.0195,thus verifying their accuracy.A flight test further demonstrates the applicability of the proposed endurance model to general electric-powered rotorcrafts. | Feng CHENG Hua WANG Pin CUI | 2017 | Chinese Journal of Aeronautics2017,30,4: | 4 |
| 6 | Studies on bio-antioxidants——Ⅱ.An ESR study on the antioxidant efficiency of ascorbyl palmitate in micelles显示文摘The kinetics for the reaction of ascorbyl palmitate and 4-hydroxy-TEMPO,4-methoxy-TEMPO or 4-hexanoyloxy-TEMPO in CTAB and SDS micelles was studied by ESR spectroscopy.It was found that the behavior of ascorbyl palmitate is remarkably different from ascorbic acid in theirantioxidant activity in micelles.The predominant factors governing the activity in micelles involvethe lipophilicity of the antioxidant and the oxidant,the charge type of the substrates and the concentra-tion of the surfactant.As high as 2×10~4 fold rate variation was observed by changing the lipophilicityof the antioxidant and the microenvironment of the reaction medium. | LIU,Zhong-Li HAN,Zheng-Xu CHENG,Pin WU,Lung-Min LIU,You-Cheng National Laboratory on Applied Organic Chemistry and Department of Chemistry,Lanzhou University,Lanzhou,730000 | 1991 | Chinese Journal of Chemistry1991,9,2: | 4 |
| 7 | Activation of mammalian target of rapamycin contributes to pain nociception induced in rats by BmK I, a sodium channel-specific modulator显示文摘The mammalian target of rapamycin (mTOR) pathway is essential for maintenance of the sensitivity of certain adult sensory neurons. Here, we investigated whether the mTOR cascade is involved in scorpion envenomation-induced pain hypersensitivity in rats. The results showed that intraplantar injection of a neurotoxin from Buthus martensii Karsch, BmK I (10 μg), induced the activation of mTOR, as well as its downstream molecules p70 ribosomal S6 protein kinase (p70 S6K) and eukaryotic initiation factor 4E-binding protein 1 (4E-BP1), in lumbar 5–6 dorsal root ganglia neurons on both sides in rats. The activation peaked at 2 h and recovered 1 day after injection. Compared with the control group, the ratios of p-mTOR/p-p70 S6K/p-4EBP1 in three types of neurons changed significantly. The cell typology of p-mTOR/p-p70 S6K/p-4E-BP1 immuno-reactive neurons also changed. Intrathecal administration of deforolimus, a specific inhibitor of mTOR, attenuated BmK I-induced pain responses (spontaneous flinching, paroxysmal pain-like behavior, and mechanical hypersensitivity). Together, these results imply that the mTOR signaling pathway is mobilized by and contributes to experimental scorpion sting-induced pain. | Feng Jiang Li-Ming Hua Yun-Lu Jiao Pin Ye Jin Fu Zhi-Jun Cheng Gang Ding Yong-Hua Ji | 2014 | Neuroscience Bulletin2014,30,1: | 4 |
| 8 | An efficient and convenient method for preparation of disulfides from thiols using air as oxidant catalyzed by Co-Salophen显示文摘<正>Disulfides have been synthesized by oxidation of thiols using air as oxidant catalyzed by Co-Salophen with high yields,mild and neutral conditions,and easy procedures of the catalyst.The products were confirmed by ~1H NMR and IR. | Pin Ji Chai Yong Shu Li Cheng Xia Tan | 2011 | Chinese Chemical Letters2011,22,12: | 3 |
| 9 | Simultaneous determination of flavonoids and anthraquinones in chrysanthemum by capillary electrophoresis with amperometry detection显示文摘有 amperometry 察觉方法(CE 广告) 的高效的毛状的电气泳动在菊为 flavonoids 和 anthraquinones (emodin, kaempferol, apigenin, luteolin 和 rhein ) 的分析被开发了。在最佳条件下面,这五 analytes 是用运用缓冲区的 boratephosphate 在 17 min 以内分开的基线(1.5 整楲杮挠牯敲慬楴湯猠数瑣潲 ' 盏?刨卌千)?? 懀吗?? | Yin Yan Zhang Zi Cheng Li Jin Kun Zhu Zhi Yong Yang Qing Jiang Wang Pin Gang He Yu Zhi Fang | 2010 | Chinese Chemical Letters2010,21,10: | 3 |
| 10 | Simultaneous determination of active ingredients in blueberry wine by CE-AD显示文摘基于结合的毛状的电气泳动,安培计的察觉(CE 广告) 第一次为 kaempferol, ferulic 酸,香子兰的酸,咖啡的酸,法国的酸和在蓝莓酒酸的 protocatechuic 的分离和决心被开发了的一个方法。为了得到分离,工作电极潜力的效果, pH 价值和运用缓冲区,分离电压和注射的集中的最佳条件,在 CE 广告上预定被调查。在最佳条件下面, analytes 能在 pH 在 Na2B4O7KH2PO4 缓冲区被分开 7.8 在 18 min 以内。300 m 直径碳磁盘电极在 +0.95 V 有好当前的回答(对 SCE ) 为所有 analytes。回答与在有察觉限制的三个数量级上的集中是线性的(S/N = 3 ) 在 108 g/mL,为 analytes 和恢复的大小在 95.8106.7% 的范围。方法能成功地与令人满意的结果被用于真实样品的分析因此由水果酒制片人的质量控制部门为使用推荐了。 | Zi Cheng Li Lang Zhu Chi Jin Kun Zhu Yin Yan Zhang Qing Jiang Wang Pin Gang He Yu Zhi Fang | 2011 | Chinese Chemical Letters2011,22,10: | 2 |
| 11 | Differentially Expressed microRNAs as Potential Markers for Vital Reaction of Burned Skin显示文摘The identification of antemortem burns and postmortem burns is essential in forensic practice.In this study,microRNA(miRNA)microarray analysis was conducted to identify differentially expressed miRNAs in the skin of an experimental burn model.Microarray analysis revealed 24 differentially expressed miRNAs in antemortem burned mice skin,with 19 miRNAs significantly upregulated and 5 downregulated.Based on the intersection predicted using three databases(Targetscan,microRNA.org,and PITA),293 potential miRNA targets were identified.These dysregulated miRNAs and their predicted targets were further analyzed using the Gene Ontology and Kyoto Encyclopedia of Genes and Genomes databases.Several functional categories and signaling pathways were enriched,including the“fc epsilon ri signaling pathway,”“endometrial cancer,”and“mTOR signaling pathway.”Expression patterns of 10 differentially expressed miRNAs were verified by reverse transcription‑quantitative polymerase chain reaction in mice skins.The results agreed with the results of microarray analysis.These findings suggest that differentially expressed miRNAs revealed by microarray are potential markers for forensic molecular diagnosis of antemortem burns. | Hao‑Pin Lyu Ming Cheng Jin‑Cen Liu Ming‑Yuan Ye Di Xu Jie‑Tao He Xiao‑Li Xie Qi Wang | 2018 | Journal of Forensic Science and Medicine2018,4,3: | 2 |
| 12 | Prediction of electric-powered fixed-wing UAV endurance显示文摘To overcome the problems encountered in predicting the endurance of electricpowered fixed-wing unmanned aerial vehicles(UAVs),which were stemmed from the dynamic changes in electric power system efficiency and battery discharge characteristics under different operating conditions,the required battery power model and battery discharge model were studied.The required battery power model was determined using an approximate model of electric power system efficiency based on wind tunnel testing and the self-adaptive penalty function.Furthermore,current correction and ambient temperature correction terms were proposed for the trained Kriging model representing the discharge characteristics under standard operation,and then the discharged capacity-terminal voltage model was established.Through numerical integration of this model with the required battery power model,the electric-powered fixed-wing UAV endurance prediction model was obtained.Laboratory tests indicated that the proposed endurance model could precisely calculate the battery discharge time and accurately describe the battery discharge process.The similarity of the theoretical and flight test results reflected the accuracy of the proposed endurance model as well as the importance of considering dynamic changes in power system efficiency in endurance calculations.The proposed endurance model meeting precision requirements can be used in practical engineering applications. | CHENG Feng WANG Hua CUI Pin | 2017 | 航空动力学报2017,32,9: | 2 |
| 13 | Removal of toxic metal ions using chitosan coated carbon nanotube composites for supercapacitors显示文摘Environmental pollution and energy crisis are two major global challenges to human beings.Recovering energy from wastewater is considered to be one of the effective approaches to address these two issues synchronously.As the main pollutants in wastewater,toxic heavy metal ions are the potential candidates for energy storage devices with pseudocapacitive behaviors.In this study,toxic metal ions of Cr(VI)and Cu(II)are removed efficiently by chitosan coated oxygen-containing functional carbon nanotubes,and the corresponding equilibrium adsorption capacity is 142.1 and 123.7 mg g^(-1).Followed by carbonization of metal ions-adsorbed adsorbents,Cu-and Cr N-loaded carbon composites can be obtained.Electrochemical measurements show that the supercapacitor electrodes based on Cu-and Cr N-loaded carbon composites have specific capacitance of 144.9 and 114.9 F g^(-1)at2 m V s^(-1),with superior electrochemical properties to pure chitosan coated carbon nanotubes after carbonization.This work demonstrates a new strategy for the resource-utilization of other heavy metal ions for energy devices,and also provides a new way to turn environmental pollutants into clean energy. | Pin Hao Xiaoye Ma Junfeng Xie Fengcai Lei Liyi Li Wenqian Zhu Xin Cheng Guanwei Cui Bo Tang | 2018 | Science China Chemistry2018,61,7: | 2 |
| 14 | PHOTO-CIDNP STUDIES OF PHTHALIMIDE DERIVATIVES IN THE PRESENCE OF TRIETHYLAMINE显示文摘The photoreactivity of some phthalimides was tested by CIDNP studies on the reactionswith triethylamine. | Ling Jiang CHENG~(1,2) Han Cheng YUAN~3 Hua Pin PU~4 Bao Zhen YAN~3 Er Cheng LI~2 Jian Hua XU~4 Jin Shi MA~1 Guang Zhi XU~2 1 Institute of Photographic Chemistry,Chinese Academy Of Sciences,Beijing 100101 2 Institute of Chemistry,Chinese Academy of Sciences,Beijing 100080 3 Department of Applied Chemistry,Beijing Institute of Chemical Technology,Beijing 100029 4 Department of Chemistry,Nanjing University,Nanjing,Jiangsu 210008 | 1993 | Chinese Chemical Letters1993,4,4: | 1 |
| 15 | Sealing depth of Nd: YAG laser on human dentin tubular 显示文摘 | Hsir Cheng liu Chur Pin Lin Warbong lan | 1997 | J Edod1997,23,11: | 1 |
| 16 | Boiling instability in parallel silicon microchannels at different heat flux显示文摘 | Wu Huiying Cheng Pin | 2004 | International Journal of Heat and Mass Transfer2004,47,: | 1 |
| 17 | Conceptual design of a Cs2LiLaBr6 scintillator‑based neutron total cross section spectrometer on the back‑n beam line at CSNS显示文摘To reduce the experimental uncertainty in the 235 U resonance energy region and improve the detection efficiency for neutron total cross section measurements compared with those obtained with the neutron total cross section spectrometer(NTOX), a dedicated lithium-containing scintillation detector has been developed on the Back-n beam line at the China Spallation Neutron Source. The Fast Scintillator-based Neutron Total Cross Section(FAST) spectrometer has been designed based on a Cs2Li La Br6(CLLB) scintillator considering the γ-ray flash and neutron environment on the Back-n beam line. The response of the CLLB scintillator to neutrons and γ-rays was evaluated with different 6Li/7 Li abundance ratios using Geant4. The neutron-γdiscrimination performance of the CLLB has been simulated considering different scintillation parameters, physical designs,and light readout modes. A cubic 6Li-enriched( > 90%) CLLB scintillator, which has a thickness of 4-9 mm and side length of no less than 50 mm to cover the Φ 50 mm neutron beam at the spectrometer position, has been proposed coupling to a side readout SiPM array to construct the FAST spectrometer. The developed simulation techniques for neutron-γ discrimination performance could provide technical support for other neutron-induced reaction measurements on the Back-n beam line. | Da‑Jun Zhao Song Feng Pin‑Jing Cheng Rong Liu Wen Luo Hao‑Qiang Wang Jie‑Ming Xue Kun Zhu Bo Zheng | 2023 | Nuclear Science and Techniques2023,34,1: | 1 |
| 18 | Hybrid genetic algorithm based optimization of coupled HMM for complex interacting processes recognition 显示文摘 | Liu Jiang - hua Chen Jia - pin Cheng Jun - shi | 2004 | High Technology Utters2004,10,3: | 1 |
| 19 | Analysis of designing multiehannel fiber Bragg gratings with different inverse design algorithms 显示文摘 | CHENG LL PIN H | 2009 | Optical Review2009,16,5: | 1 |
| 20 | Titanium Dioxide Nanoparticles Co-doped with Fe3+and Eu3+Ions for Photo-catalysis显示文摘 | Yang Pin Lu Cheng Hua Nanping | 2002 | Materials Letters2002,57,: | 1 |