|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Ten cities cross-sectional questionnaire survey of children asthma and other allergies in China显示文摘Asthma,rhinitis and eczema(allergic or non-allergic)have increased throughout the world during the last decades,especially among children.Changes in the indoor environment are suspected to be important causes.China has experienced a dramatic change in indoor environmental exposures during the past two decades.However,such changes and their associations with children’s asthma and other health aspects have not been thoroughly studied.China,Children,Homes,Health(CCHH),Phase I,was a cross-sectional questionnaire survey of 48219 children 1–8 years old in 10 Chinese cities during 2010–2012.The questionnaire includes the International Study of Asthma and Allergies in Childhood(ISAAC)core health questions and additional questions regarding housing,life habits and outdoor environment.In health analyses,children aged 3–6 years old were included.The prevalences of doctor diagnosed asthma varied from 1.7%to 9.8%(mean 6.8%),a large increase from 0.91%in 1999 and 1.50%in2000.The prevalence of wheeze,rhinitis and atopic eczema(last 12 months)varied from 13.9%to 23.7%,24.0%to 50.8%and4.8%to 15.8%,respectively.Taiyuan had the lowest prevalences of all illnesses and Shanghai the highest,except for wheezewhere the highest value was for Urumqi.We found(1)no obvious association between disease prevalences and ambient PM10concentrations and(2)higher prevalences of disease in humid climates with hot summers and cold winters,but with no centrally heated buildings.Associations between the diseases and economic status as indexed by Gross Domestic Product(GDP)requires further study. | ZHANG YinPing LI BaiZhan HUANG Chen YANG Xu QIAN Hua DENG QiHong ZHAO ZhuoHui LI AnGui ZHAO JiaNing ZHANG Xin QU Fang HU Yu YANG Qin WANG Juan ZHANG Ming WANG Fang ZHENG XiaoHong LU Chan LIU ZhiJian SUN YueXia MO JinHan ZHAO YiLi LIU Wei WANG TingTing NORBCK Dan BORNEHAG Carl-Gustaf SUNDELL Jan | 2013 | Chinese Science Bulletin2013，58，34： | 22 |
| 2 | Combination of ribavirin and reduning protects mice against severe pneumonia induced by H1N1 influenza a virus显示文摘OBJECTIVE:To investigate the effects of ribavirin administration combined with Reduning in a mouse model of influenza A(H1N1)-induced severe pneumonia.METHODS:Influenza A/Beijing/501/2009(H1N1)-infected C57BL/6 mice were randomly divided into four experimental groups treated with either a mock injection of phosphate-buffered saline(PBS),ribavirin(66.6 mg/kg daily)or Reduning(86.6 mg/kg daily),or a combination of both,for 7 days.Mice were monitored for clinical signs and survival,and body weight was measured daily for 14 days.Virus titer,lung wet-to-dry ratios,pathology and cytokines including interleukin(IL)-6,IL-10,and interferon(IFN)-γwere assayed on different days.RESULTS:In the untreated group injected with phosphate buffer saline,all the mice died of the infection.The survival rate of mice treated with Reduning was only 10%,whereas 100%of the ribavirin-and the combination-treated mice survived.Low lung viral loads indicated that ribavirin significantly inhibited virus replication,whereas Reduning did not.Lung wet-to-dry ratios demonstrated that both ribavirin and Reduning,administered together or separately,reduced acute lung edema compared with results in the untreated group.Pathology analyses also showed that treatment with a combination of both drugs relieved pathological lesions,whereas the single drug treatment did not.Levels of IL-6,IL-10 and IFN-γin mice treated with ribavirin or the combination of both ribavirin and Reduning were all significantly lower than in the untreated group,especially in the combination-treated group.In addition,Reduning administration significantly decreased both IL-6 and IL-10production but had no effect on IFN-γ.CONCLUSION:Due to the synergistic effect of antiviral and antiinflammation,the combination of ribavirin and Reduning could be an effective treatment for severe H1N1 which was considered to be significant to delayed antiviral and drug resistant. | Ma Yuexia Zhang Wei Zhao Zhongpeng Li Min Liu Jian Wang Yuguang | 2016 | Journal of Traditional Chinese Medicine2016，36，2： | 13 |
| 3 | Risk assessment of gas control and spontaneous combustion of coal under gas drainage of an upper tunnel显示文摘The adjustment of the gas drainage rate has an immediate impact on air leakage in gob,thus resulting in the change of self-heating of coal.While regulating the gas drainage parameters,the risk of spontaneous combustion of coal should be considered.The risk assessment of gas control and spontaneous combustion of coal under gas drainage in a tunnel was investigated at different gas drainage rates.The distributions of the air volume along the working face,the gas management effects and the width of the oxidation zone were subjected to risk analysis.As the simulation results showed,with increasing gas drainage rate,although the safety of gas dilution by ventilation was assured,the intensifying air leakage caused the oxidation zone to move into the deeper gob and led to an increase in the width of the oxidation zone.A risk assessment method was proposed to determine a suitable gas drainage rate for the upper tunnel.The correctness of the risk assessment and the validity of the numerical modelling were confirmed by the field measurements. | Tingxiang Chu Pin Li Yuexia Chen | 2019 | International Journal of Mining Science and Technology2019，29，3： | 9 |
| 4 | Self-contained in situ sediment acoustic measurement system based on hydraulic driving penetration显示文摘 | Kan Guangming Liu Baohua Zhao Yuexia Li Guanbao Pei Yanliang | 2011 | High Technology Letters2011，17，3： | 9 |
| 5 | Analyses of circRNA profiling during the development from pre-receptive to receptive phases in the goat endometrium显示文摘Background: Recent studies have revealed that noncoding RNAs play important regulatory roles in the formation of endometrial receptivity.Circular RNAs(circRNAs) are a universally expressed noncoding RNA species that have been recently proposed to act as miRNA sponges that directly regulate expression of target genes or parental genes.Results: We used Illumina Solexa technology to analyze the expression profiles of circRNAs in the endometrium from three goats at gestational day 5(pre-receptive endometrium,PE) and three goats at gestational day 15(receptive endometrium,RE).Overall,21,813 circRNAs were identified,of which 5,925 circRNAs were specific to the RE and 9,078 were specific to the PE,which suggested high stage-specificity.Further analysis found 334 differentially expressed circRNAs in the RE compared with PE(P < 0.05).The analysis of the circRNA-miRNA interaction network further supported the idea that circRNAs act as miRNA sponges to regulate gene expression.Moreover,some circRNAs were regulated by estrogen(E2)/progesterone(P4) in endometrial epithelium cell lines(EECs) and endometrial stromal cell line(ESCs),and each circRNA molecule exhibited unique regulation characteristics with respect to E2 and P4.Conclusions: These data provide an endometrium circRNA expression atlas corresponding to the biology of the goat receptive endometrium during embryo implantation. | Yuxuan Song Lei Zhang Xiaorui Liu Mengxiao Niu Jiuzeng Cui Sicheng Che Yuexia Liu Xiaopeng An Binyun Cao | 2019 | Journal of Animal Science and Biotechnology2019，10，3： | 8 |
| 6 | Olfactory ensheathing cell transplantation improves sympathetic skin responses in chronic spinal cord injury显示文摘Forty-three patients with chronic spinal cord injury for over 6 months were transplanted with embryonic olfactory ensheathing cells, 2–4 × 106, into multiple sites in the injured area under the surgical microscope. The sympathetic skin response in patients was measured with an electromyography/evoked potential instrument 1 day before transplantation and 3–8 weeks after transplantation.Spinal nerve function of patients was assessed using the American Spinal Injury Association impairment scale. The sympathetic skin response was elicited in 32 cases before olfactory ensheathing cell transplantation, while it was observed in 34 cases after transplantation. Concomitantly,sympathetic skin response latency decreased significantly and amplitude increased significantly after transplantation. Transplantation of olfactory ensheathing cells also improved American Spinal Injury Association scores for movement, pain and light touch. Our findings indicate that olfactory ensheathing cell transplantation improves motor, sensory and autonomic nerve functions in patients with chronic spinal cord injury. | Zuncheng Zheng Guifeng Liu Yuexia Chen Shugang Wei | 2013 | Neural Regeneration Research2013，8，30： | 6 |
| 7 | Recent advances and perspectives of fluorite and perovskite-based dual-ion conducting solid oxide fuel cells显示文摘High-temperature solid-state electrolyte is a key component of several important electrochemical devices,such as oxygen sensors for automobile exhaust control,solid oxide fuel cells(SOFCs) for power generation,and solid oxide electrolysis cells for H_(2) production from water electrolysis or CO_(2) electrochemical reduction to value-added chemicals.In particular,internal diffusion of protons or oxygen ions is a fundamental and crucial issue in the research of SOFCs,hypothetically based on either oxygen-ionconducting electrolytes or proton-conducting electrolytes.Up to now,some electrolyte materials based on fluorite or perovskite structure were found to show certain degree of dual-ion transportation capability,while in available electrolyte database,particularly in the field of SOFCs,such dual-ion conductivity was seriously overlooked.Actually,few concerns arising to the simultaneous proton and oxygen-ion conductivities in electrolyte of SOFCs inevitably induce various inadequate and confusing results in literature.Understanding dual-ion transportation behavior in electrolyte is indisputably of great importance to explain some unusual fuel cell performance as reported in literature and enrich the knowledge of solid state ionics.On the other hand,exploration of novel dual-ion conducting electrolytes will benefit the development of SOFCs.In this review,we provide a comprehensive summary of the understanding of dual-ion transportation in solid electrolyte and recent advances of dual-ion conducting SOFCs.The oxygen ion and proton conduction mechanisms at elevated temperature inside oxide-based electrolyte materials are first introduced,and then(mixed) oxygen ion and proton conduction behaviors of fluorite and perovskite-type oxides are discussed.Following on,recent advances in the development of dual-ion conducting SOFCs based on fluorite and perovskite-type single-phase or composite electrolytes,are reviewed.Finally,the challenges in the development of dual-ion conducting SOFCs are discussed and future prospects are proposed. | Jiafeng Cao Chao Su Yuexia Ji Guangming Yang Zongping Shao | 2021 | Journal of Energy Chemistry2021，30，6： | 5 |
| 8 | Two-Layer Coupled Network Model for Topic Derivation in Public Opinion Propagation显示文摘In view of the fact that news can generate derivative topics when it spreads through micro-blogs,a two-layer coupled SEIR public opinion propagation model is proposed in this paper.The model divides the process of public opinion propagation into two layers:the original topic layer and the derived topic layer.Messages are transmitted separately by the SEIR model in the two topic layers,which are independent and interactive.The influence of the topic derivation rate on the propagation trend is established by solving for the equilibrium point and propagation threshold.Further,we establish the relationship between the original topic and the derived topic by simulation.This paper uses the Baidu index to demonstrate the correctness of the model.The relationship between the derived topic and the original topic is verified by adjusting the parameters by the control variable method.The results show that the proposed model is consistent with the propagation of actual public opinion. | Yuexia Zhang Yixuan Feng | 2020 | China Communications2020，17，3： | 5 |
| 9 | Indoor environmental quality and the prevalence of childhood asthma and rhinitis in Wuhan area of China显示文摘Indoor environmental quality is suspected to be at least part of the cause of the increasing prevalence of childhood asthma and allergy.This study is part of the China,Children,Homes,Health(CCHH)project,which was designed to identify the risk factors indoors that are associated with prevalence of asthma and allergy among children in China.A cross-sectional questionnaire study was carried out in Wuhan in 2011.The questionnaire was a modified(to Chinese building characteristics)version of a questionnaire used first in Sweden.The parents of 2193 children,aged 1–8 years,replied,a response rate of 91.4%(2193/2400).Prevalences of asthma and allergic symptoms were calculated,and a Chi-square test and multiple logistic regression were used to identify risk factors.Prevalences of health outcomes are'wheezing last 12 months'18.5%,'cough at night last 12 months'15.4%,'doctor-diagnosed asthma'6.0%,'rhinitis last 12 months'48.7%,'doctor-diagnosed allergic rhinitis'17.5%.Factors associated with increased risk for asthma,allergy and related symptoms include living in an urban area,dampness(significant),use of gas for cooking,new dwelling decoration(paint and furniture obtained during pregnancy),keeping pets and breast feeding less than 3months.Factors associated with reduced risk as installing an exhaust fan in the bathroom.Home environmental factors are significantly associated with the prevalence of childhood asthma and rhinitis in Wuhan.Urbanization and dampness problems at home are significant risk factors for doctor diagnosed asthma and allergic rhinitis among children in Wuhan. | ZHANG Ming ZHOU ESheng YE Xin SUN YueXia SUNDELL Jan YANG Xu | 2013 | Chinese Science Bulletin2013，58，34： | 4 |
| 10 | Limitation of fault-sealing and its control on hydrocarbon accumulation——An example from the Laoyemiao Oilfi eld of the Nanpu Sag显示文摘Based on previous studies on the internal structures of fault belts, the fault belts in the Laoyemiao Oilfi eld of the Nanpu Sag can be divided into three units, a crushed zone, an upper induced fracture zone and a lower induced fracture zone according to the log response characteristics. The upper induced fracture zone is characterized by the development of pervasive fractures and has a poor sealing or non-sealing capability. It therefore can act as pathways for hydrocarbon migration. The lower induced fracture zone consists of fewer fractures and has limited sealing capability. The crushed zone has a good sealing capability comparable to mudstone and can thus prevent lateral migration of fluid. Through physical modeling and comparing laboratory data with calculated data of oil column heights of traps sealed by faults, it is concluded that the fault-sealing capability for oil and gas is limited. When the oil column height reaches a threshold, oil will spill over from the top of reservoir along the lower induced fracture zone under the action of buoyancy, and the size of reservoir will remain unchanged. Analysis of the formation mechanisms of the fault-sealed reservoirs in the Nanpu Sag indicated that the charging sequence of oil and gas in the reservoir was from lower formation to upper formation, with the fault playing an important role in oil and gas accumulation. The hydrocarbon potential in reverse fault-sealed traps is much better than that in the consequent fault-sealed traps. The reverse fault-sealed traps are favorable and preferred exploration targets. | Jiang Zhenxue Dong Yuexia Li Hongyi Liu Luofu Liu Guangdi Li Xiaoying | 2008 | Petroleum Science2008，5，4： | 4 |
| 11 | Effects of intermedinl-53 on myocardial fibrosis显示文摘Intermedin (IMD ) 是 calcitonin/calcitonin 的一个成员基因相关的肽(CGRP ) 家庭并且类似或更多的有势力心血管的行动比 adrenomedullin (ADM ) 和任何另外的 CGRP。现在的工作的目的是在 vivo 并且在 vitro 在心脏的成纤维细胞纤维变性上学习 IMD1-53 的效果。心肌的梗塞模型被绑扎准备老鼠左前面的下降冠的动脉。在左室的间充质的骨胶原内容被天狼星红污点存取。心功能被血液动力学的变化探索。表示我和 III 打骨胶原, IMD1-53,受体修改活动的蛋白质(斜面) 1/2/3,和 calcitonin 在左室的像受体的受体(CRLR ) 被西方的污点分析检测。心脏的成纤维细胞(CFbs ) 纤维变性被与醛固酮(ALD ) 对待房间导致。在上层清液的 CFbs 增长和 hydroxyproline 内容被 3- 决定[4,5-dimehyl-2-thiazolyl ]-2,5-diphenyl-2H-tetrazolium 溴化物试金和连接酶的 immunosorbent 试金。心功能在心肌的梗塞模型老鼠被减少。类型的表示我和在在心肌的老鼠的 infarcted 地区的类型 III 骨胶原是比在假冒操作组的那些高级的。在左室的 IMD1-53,斜面,和 CRLR 也是起来调整的。在 vitro,实验证明 ALD 是 CFbs 激活的一个强大的激发器。IMD1-53 减少了以一种剂量依赖者方式的导致 ALD 的 CFbs 增长。而且, CGRP8-37 和 ADM22-52 显著地在导致 ALD 的心肌的房间纤维变性上堵住了 IMD1-53 的效果。IMD 能涉及心脏的纤维变性的发作。象 ADM 一样, IMD1-53 在 CFbs 上施加 antifibrotic 效果,它可能被 CRLR/RAMP 建筑群和 ADM 受体调停。 | Xiaoling Yang Huiping Zhang Yuexia Jia Lan Ni Guizhong Li Lihua Xue Yideng Jiang | 2013 | Acta Biochimica et Biophysica Sinica2013，45，2： | 4 |
| 12 | Variations of Summer Phytoplankton Community Related to Environmental Factors in a Macro-Tidal Estuarine Embayment, Hangzhou Bay, China显示文摘To explore the distribution and composition of phytoplankton community and their responses to environmental changes, summer net-collected phytoplankton and physicochemical parameters in the Hangzhou Bay during 2004–2010 were investigated. A total of four phyla and 84 species were identified, including 67 diatom and 12 dinoflagellate species. The dominant species con- stantly consisted of the diatoms, although the dominance of dinoflagellate and cyanobacteria increased recently. Due to great spa- tio-temporal variations in environmental factors(salinity, suspended solids, and nutrient concentration), significant heterogeneities in community compositions among different years and subregions(inner and middle sections, and bay mouth) were found based on the analyses of multidimensional scaling and similarity. Canonical correspondence analysis showed that salinity and Si/N were the main variables associated with algal assemblage. Compared with the historical data since the 1980 s, eutrophication(N, P, and N/P increased with decreasing Si/N) was exacerbated drastically. Moreover, climatic forcing and human activities resulted in a series of physical alterations, including sediment retention, temperature increase, and salinity decrease as well as reduction in water exchanges. All these changes induced obvious increases in cell density and Chl-a while decreases in species diversity and diatom-dinoflagellate ratio as well as the shifting of dominant species. Therefore, the long-term phytoplankton variations were closely related to anthropogenic and climatic perturbations in the Hangzhou Bay. | ZHANG Yuexia YU Jun JIANG Zhibing WANG Qin WANG Hui | 2015 | Journal of Ocean University of China2015，14，6： | 4 |
| 13 | Effects of home environment and lifestyles on prevalence of atopic eczema among children in Wuhan area of China显示文摘Atopic eczema is a common health problem in children.The prevalence has increased in the past decades.Besides a genetic predisposition,lifestyle factors,dietary habits and indoor environments are thought to be related to its high prevalence.A cross-sectional questionnaire study was carried out in 2011 in the Wuhan area to study associations between home environments and children’s health.The questionnaires were replied to by parents of 2193 children 1 8 years old and the response rate was91.4%(2193/2400).The results show:(1)The prevalence of'eczema symptom ever that lasted for 6 months'was 23.2%;'eczema symptom in the last 12 months'7.4%and'awake at night due to itchy rash'3.4%.(2)Risk factors:Closer to business area(AOR 1.4),moisture related problems(AOR 1.3 2.2),moldy and stuffy odor perception(AOR 1.5),mice observed(AOR 1.8),pet keeping(AOR 1.3),exposure to environmental tobacco smoke(AOR 1.3)and incense(AOR 1.8)were significant risk factors for atopic eczema symptoms ever.Living in an apartment,compared to single family house,was related to more eczema symptom in the last 12 months.Damp clothing/bed sheets and perception of stuffy odor were risk factors for both'eczema symptom in the last 12 months'and'awake due to itchy rash(severe eczema)'.The odds ratio of mice observed for severe eczema was 3.1(95%CI:1.4 6.7).It suggests that urbanization,life style and dampness problems at home were significant risk factors for eczema symptoms among children in Wuhan,China. | ZHANG Ming WU Yang YUAN Ye ZHOU ESheng SUNDELL Jan SUN YueXia YANG Xu | 2013 | Chinese Science Bulletin2013，58，34： | 3 |
| 14 | Home risk factors for childhood pneumonia in Nanjing, China显示文摘Pneumonia is a major cause of childhood morbidity in China.Many studies of rural areas have found an association between pneumonia and air pollution from burning of bio-mass.The present study is of children living in urban,modern homes without burning of bio-mass.In order to investigate potential home risk factors associated with children’s pneumonia,China Child Home Health(CCHH)questionnaires were randomly distributed to parents of 6461 children in 23 kindergartens in all 11 districts of Nanjing,covering urban,suburban,and industrial areas.The 4014 valid questionnaires(response rate 65.7%)were returned and have been analyzed.The lifetime incidence of pneumonia in Nanjing children 1–8 years old is 26.7%.The incidence of croup,asthma and frequent common colds was strongly associated with pneumonia,as was a history of allergies in the family,and persons other than parents(for example grandparents or nanny)taking care of the child.Several home environmental factors,namely,dampness,lack of ventilation,using coal or natural gas(electricity as reference)for cooking,new furniture,and'modern'floor and wall covering materials were also significantly associated with pneumonia.The indoor environment typical of modern apartments in China was a risk factor for pneumonia among children. | ZHENG XiaoHong QIAN Hua ZHAO YiLi SHEN HongPing ZHAO ZhuoHui SUN YueXia SUNDELL Jan | 2013 | Chinese Science Bulletin2013，58，34： | 3 |
| 15 | Origin and Source of Deep Natural Gas in Nanpu sag, Bohai Bay Basin, China显示文摘Natural gas exploration in Nanpu sag, Bohai Bay Basin, has achieved breakthroughs in recent years, and a number of natural gas and condensate wells with high yield have been found in several structures in the beach area. Daily gas production of single wells is up to 170,000 m3, and high-yield wells are mainly distributed in?the Nanpu No. 1 structural belt.?Studies have shown that these natural gases are mainly hydrocarbon gases, with methane content about 80% to 90% and ethane 6%-9%, so they are mainly wet gas; and non-hydrocarbons are at a low level.?Carbon isotopes of methane range from -42‰ to -36‰, and ethane from -28‰ to -26‰. Calculated maturity based on the relationship between δ13C and Ro of natural gas, the gases are equivalent to those generated from organic matter when Ro is 1.0%-1.7% (mainly 1.25%-1.32%). The natural gas is oil-type gas generated from the source rocks at mature to high mature stage, associated with condensate, so carbon isotopes of the gases are heavier. Natural gas in the Nanpu No.1 structural belt is mainly associated gas with condensate. The analysis of the origin and source of natural gas and condensate, combined with the monomer hydrocarbon carbon isotopes and biomarker, indicated that the main source rocks in the Nanpu No.1 structural belt were Es3 (the lower member of the Shahejie Formation), followed by Es1 (the upper member of the Shahejie Formation).?The high-mature hydrocarbons from source rocks in the deep sag mainly migrated through deep inherited faults into shallow traps and accumulated to form oil and gas pools. Therefore, there is a great potential for exploring gas in deep layers. | ZHU Guangyou WANG Zhengjun WANG Yongjun ZHAO Jie DONG Yuexia WANG Kai LIU Yongchang WANG Jianwei | 2013 | Acta Geologica Sinica(English Edition)2013，87，4： | 3 |
| 16 | Integrated Control of Lateral and Vertical Vehicle Dynamics Based on Multi-agent System显示文摘The existing research of the integrated chassis control mainly focuses on the different evaluation indexes and control strategy. Among the different evaluation indexes, the comprehensive properties are usually not considered based on the non-linear superposition principle. But, the control strategy has some shortages on tyre model with side-slip angle, road adhesion coefficient, vertical load and velocity. In this paper, based on belief, desire and intention(BDI)-agent model framework, the TYRE agent, electric power steering(EPS) agent and active suspension system(ASS) agent are proposed. In the system(SYS) agent, the coordination mechanism is employed to manage interdependences and conflicts among other agents, so as to improve the flexibility, adaptability, and robustness of the global control system. Due to the existence of the simulation demand of dynamic performance, the vehicle multi-body dynamics model is established by SIMPACK. And then the co-simulation analysis is conducted to evaluate the proposed multi-agent system(MAS) controller. The simulation results demonstrate that the MAS has good effect on the performance of EPS and ASS. Meantime, the better road feeling for the driver is provided considering the multiple and complex driving traffic. Finally, the MAS rapid control prototyping is built to conduct the real vehicle test. The test results are consistent to the simulation results, which verifies the correctness of simulation. The proposed research ensures the driving safety, enhances the handling stability, and improves the ride comfort. | HUANG Chen CHEN Long YUN Chaochun JIANG Haobin CHEN Yuexia | 2014 | Chinese Journal of Mechanical Engineering2014，27，2： | 3 |
| 17 | Time Series Analysis on the Ratio for Pixels with Abnormal Brightness Temperature Increase and Its Variation Before Some Earthquakes with M_S≥5.0 in the Taiwan Region显示文摘In the study of the application of MODIS satellite remote sensing data to earthquake prediction, the paper puts forward for the first time a quantitative method to estimate the ratio for the pixels with abnormal brightness temperature (BT) increase and a preliminary scheme for cloud removal. The principle is that, firstly, the cloudless data observed by the same satellite at the same period of time but in different days (usually 1 day to 3 days) are mosaiced to get high ratio of clear sky, and then the BT variation curve and mean square difference (MSD) of each pixel are calculated with the data from the covered area to determine daily whether the BT data of the day is normal or not at a certain pixel by using double the MSD as the criterion. The ratio for the pixels with abnormal BT increase can be calculated by dividing the total number of abnormal pixels with the total pixels of the whole area. Analysis on a series of recent earthquakes in the Taiwan Region shows that the ratio for pixels with abnormal BT increase, which normally undulates around zero, has a sudden enhancement 1 day to 20 days before medium-strong earthquakes. It is expected that a new method for identifying earthquake auspice could be found through special studies in regions with frequent seismic activity by analyzing the change of the ratio for the pixels with abnormal BT increase from MODIS satellite remote sensing infrared (IR) information from which the effect of clouds has been removed to a certain extent. | Liu Fang Xin Hua Zhang Tiebao Lu Qian Ren Yuexia | 2007 | Earthquake Research in China2007，21，4： | 3 |
| 18 | Dynamic Systems of Petroleum Accumulation in the Nanpu Depression,Bohai Bay Basin,China显示文摘为石油累积和分发的理解区分石油累积(DSPA ) 的动态系统是重要的。根据形成压力框架,石油的基因类型和水管系统的特征,石油累积的三个动态系统在 Nanpu 消沉在垂直侧面被识别, Bohai 海湾盆。更深的 DSPA (到 Es2 的包括的形成 Es3 ) 是有高过压、高度成熟的自我采购的油的一个封上的系统。大多数在系统的原油近来在时期积累了渐新世(23.5 妈) 和迟了的上新世(2.4 妈) 。中间的 DSPA (到 Ed1 的包括的形成 Es1 ) 是 overpressured 有成熟或降低成熟的自我采购的油的封上一半的系统。在系统的油的累积也发生在迟了的渐新世(23.5 妈) 和迟了的上新世(2.4 妈) 。更浅的 DSPA (到 Q 的包括的形成 Ed2 ) 是有从中间的系统的降低成熟的采购侨民的油的一个静水力学的系统。在这个系统以内的油仅仅在迟了的上新世时期积累了。在更浅的系统的油沿着 sandbodies 由侧面的移植在中间的系统从先前积累的油沿着差错垂直地移居了,而在更深的系统的石油累积主要从由沿着 sandbodies 并且很少的侧面的移植的本身从系统移植了的系统被导出。在这种情况中,看起来更深的系统是除了另外的二个证明有利系统的更潜在的探索前景。 | LIU Guangdi SUN Mingliang ZHANG Zhihuan DONG Yuexia | 2010 | Acta Geologica Sinica(English Edition)2010，84，5： | 3 |
| 19 | Modeling and test on height adjustment system of electrically-controlled air suspension for agricultural vehicles显示文摘To reduce the damages of pavement,vehicle components and agricultural product during transportation,an electric control air suspension height adjustment system of agricultural transport vehicle was studied by means of simulation and bench test.For the oscillation phenomenon of vehicle height in driving process,the mathematical model of the vehicle height adjustment system was developed,and the controller of vehicle height based on single neuron adaptive PID control algorithm was designed.The control model was simulated via Matlab/Simulink,and bench test was conducted.Results show that the method is feasible and effective to solve the agricultural vehicle body height unstable phenomenon in the process of switching.Compared with other PID algorithms,the single neuron adaptive PID control in agricultural transport vehicle has shorter response time,faster response speed and more stable switching state.The stability of the designed vehicle height adjustment system and the ride comfort of agricultural transport vehicle were improved. | Chen Yuexia Chen Long Wang Ruochen Xu Xing Shen Yujie Liu Yanling | 2016 | International Journal of Agricultural and Biological Engineering2016，9，2： | 3 |
| 20 | Molecular characterization of root exudates using Fourier transform ion cyclotron resonance mass spectrometry显示文摘The release of root exudates(REs) provides an important source of soil organic carbon. This work revealed the molecular composition of REs of different plant species including alfalfa( Medicago sativa L.), bean( Phaseolus vulgaris L.), barley( Hordeum vulgare L.), maize( Zea mays), wheat( Triticum aestivum L.), ryegrass( Lolium perenne L.) and pumpkin( Cucurbita maxima) using electrospray ionization coupled with Fourier transform ion cyclotron resonance mass spectrometry(ESI FT-ICR MS). The combination of positive ion mode( + ESI) and negative ion mode(-ESI) increased the number of the molecules detected by ESI FT-ICR MS, and a total of 8758 molecules were identified across all the samples. In detail, lipids and proteins and unsaturated hydrocarbons were more easily detected in + ESI mode, while aromatic compounds with high O/C were readily ionized in-ESI mode, and only 38% of the total assigned formulas were shared by -ESI and + ESI modes. Multivariate statistical analysis of the formulas indicated that the close related plants species secreted REs with similar molecular components. Moreover, the unsaturation degree and nitrogen content were the two key parameters able to distinguish the similarities and differences of molecular components of REs between plant species. The results provided a feasible analysis method for characterization of the molecular components of REs and for the first time characterized the molecular components of REs of a variety of plant species using ESI FT-ICR MS. | Yuexia Miao Jitao Lv Honglin Huang Dong Cao Shuzhen Zhang | 2020 | Journal of Environmental Sciences2020，32，12： | 2 |
您所在的机构暂未开通此部分的功能，请联系管理员