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| 1 | Improved and excellent ethanol sensing properties of SnO_2/multiwalled carbon nanotubes显示文摘SnO2/multiwalled carbon nanotubes (MWNTs) have been studied as gas sensing materials. Compared with pure SnO2, SnO2/MWNTs exhibit improved ethanol sensing properties such as higher sensitivity and quicker response/recovery at 300°C. The sensitivity is 35, 65, 166 and 243 to 500, 1000, 2000 and 3000 ppm ethanol, respectively. The response time is about 1 s, and the recovery time is about 5 s. The sensing improvement is explained in terms of the appropriate basal resistance and enhanced signal transfer brought by MWNTs. | LIU Li ZHUANG Juan LIU KuiXue WANG LianYuan LI ShouChun LI Wei LI XiaoLong | 2010 | Chinese Science Bulletin2010，55，4： | 3 |
| 2 | Relationship between gravity change and Yangbi M_(S)6.4 earthquake显示文摘Based on the relative and absolute gravity measurements in the southern South-North Seismic Belt since 2015,we analyzed the dynamic change of the regional gravity field and its relationship with the Yangbi M_(S)6.4 earthquake that occurred on May 21,2021.The results show that:(1)The regional gravity field changes are closely related to the Weixi-Qiaohou fault,which reflects the surface gravity field changes caused by the fault activity from 2015 to 2021;(2)The gravity field change related to the preparation of Yangbi earthquake has experienced the evolution process of'steady state-regional gravity anomaly-local gravity anomaly-four-quadrant distribution-large area positive anomaly-earthquake occurring in the reverse change process';(3)The cumulative and differential change images of the gravity field show that there were significant gravity changes in the two years preceding the Yangbi earthquake,and the earthquake occurred in the high-gradient belt of gravity variation,the center of the four-quadrant,and close to the zero contour turn;(4)The dynamic evolution image of the gravity field can well reflect the precursory phenomena during the preparation for the Yangbi MS6.4 earthquake.Based on the anomaly change of mobile gravity,a certain degree of medium-term prediction was made before the Yangbi M_(S)6.4 earthquake,especially the determination of strong earthquake location. | Xiong Yang Yiqing Zhu Yunfeng Zhao Shouchun Wei | 2023 | Geodesy and Geodynamics2023，14，4： | 1 |
| 3 | Expert consensus on prevention and cardiopulmonary resuscitation for cardiac arrest in COVID-19显示文摘Background:Cardiopulmonary resuscitation(CPR)strategies in COVID-19 patients differ from those in patients suffering from cardiogenic cardiac arrest.During CPR,both healthcare and non-healthcare workers who provide resuscitation are at risk of infection.The Working Group for Expert Consensus on Prevention and Cardiopulmonary Resuscitation for Cardiac Arrest in COVID-19 has developed this Chinese Expert Consensus to guide clinical practice of CPR in COVID-19 patients.Main recommendations:1)A medical team should be assigned to evaluate severe and critical COVID-19 for early monitoring of cardiac-arrest warning signs.2)Psychological counseling and treatment are highly recommended,since sympathetic and vagal abnormalities induced by psychological stress from the COVID-19 pandemic can induce cardiac arrest.3)Healthcare workers should wear personal protective equipment(PPE).4)Mouth-to-mouth ventilation should be avoided on patients suspected of having or diagnosed with COVID-19.5)Hands-only chest compression and mechanical chest compression are recommended.6)Tracheal-intubation procedures should be optimized and tracheal-intubation strategies should be implemented early.7)CPR should be provided for 20-30 min.8)Various factors should be taken into consideration such as the interests of patients and family members,ethics,transmission risks,and laws and regulations governing infectious disease control.Changes in management:The following changes or modifications to CPR strategy in COVID-19 patients are proposed:1)Healthcare workers should wear PPE.2)Hands-only chest compression and mechanical chest compression can be implemented to reduce or avoid the spread of viruses by aerosols.3)Both the benefits to patients and the risk of infection should be considered.4)Hhealthcare workers should be fully aware of and trained in CPR strategies and procedures specifically for patients with COVID-19. | Wei Song Jie Wei Xiangdong Jian Deren Wang Yanhong Ouyang Yuanshui Liu Xianjin Du Ying Chen Yingqi Zhang Heping Xu Shuming Xianyu Qiong Ning Xiang Li Xiaotong Han Feng Zhan Tao Yu Wenteng Chen Jun Zhang Wenwei Cai Sheng’ang Zhou Shengyang Yi Yu Cao Xiaobei Chen Shunjiang Xu Zong’an Liang Duohu Wu Fen Ai Zhong Wang Qingyi Meng Yuhong Mi Sisen Zhang Rongjia Yang Shouchun Yan Wenbin Han Yong Lin Chuanyun Qian Wenwu Zhang Yan Xiong Jun Lv Baochi Liu Yan Cao Xiaojun He Xuelian Sun Yufang Cao Tian’en Zhou | 2021 | Asian Pacific Journal of Tropical Medicine2021，14，6： | 0 |
| 4 | Retrospective analysis of diffuse interstitial lung disease in 10 hospitals in Tianjin显示文摘Objective:To investigate the constituent ratio and clinical features of diffuse interstitial lung disease(DILD)in Tianjin,and to identify the existing problems of its diagnosis and treatment.Methods:Data of all patients diagnosed as DILD in ten comprehensive hospitals in Tianjin from 2003 to 2009 was collected.The disease constituent ratio of DILD to all kinds of diseases in the respiration department or in the whole hospital,the clinical manifestation,lung function,the result of blood gas analysis,and biopsy were analyzed.Results:A total of 804 DILD patients were included in the study aged(69.28±12.09)years with a male/female ratio of 1.32.The disease constituent ratios of DILD were 4.52‰in respiratory department and 0.31‰in the whole hospital in 2003,which increased to 35.9‰and 1.51‰respectively in 2009.Reticular abnormality(43.1%),ground glass(25.6%)and honeycombing(11.4%)were the predominant imaging manifestations.26.7%patients’lung function were tested,and 10.3%had diffusion function tests.Most patients presented with hypoxemia,and the average oxygenation index was(281±98.3)mmHg.Only 4.0%of patients underwent bronchoalveolar lavage,and 3.5%had pathologic data.Conclusion:The disease constituent ratio of DILD increased progressively from 2003 to 2009.A definite diagnosis of DILD demands cooperation of physicians,radiologists and pathologists.Doctors should attach more importance on lung function test,bronchoalveolar lavage and biopsy. | SHOUCHUN PENG LUQING WEI JIE CAO GUIYING LIU YANPING LAI WEI JIA HONG ZHENG LIYU LI YUYAN XIAO NAN LI NAXIN ZHANG | 2013 | Family Medicine and Community Health2013，1，2： | 0 |
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