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Labeling of volatile organic compounds emissions from Chinese furniture:Consideration and practice

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Chinese Science bulletin 2013年第28期58卷 3499-3506页

作者： LIU WeiWei zhang yinping YAO Yuan Department of building Science Tsinghua University

Volatile organic compounds(VOCs)emitted from furniture are recognized as a main cause of bad indoor air *** European countries and the U.S.,labeling systems for furniture have been established with good effect to address this ***,there are problems with these labeling *** example,too many VOCs were targeted,and the testing time was too long(7–28 d).Aiming at solving these problems,solutions are put forward to establish furniture VOCs emissions labeling system in China and some practices are introduced in this *** are:some furniture popular in the market were tested and main VOCs emitted from these furniture were identified;furniture loading factors in residential homes were surveyed,and reference bedroom and reference living room were established according to the survey results to make emission rate thresholds of furniture;C-history method was developed and applied to testing furniture which could shorten the testing time to 3 d;a reference toluene sample for assessing the precision of the test results of chamber system was *** works are technically helpful for establishing furniture VOCs labeling system in China.

关键词：挥发性有机化合物中国家具标签系统排放量测试时间室内空气质量标签制度 VOCs

Pharmacokinetics,bioavailability,metabolism and excretion of δ-viniferin in rats

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Acta Pharmaceutica Sinica b 2016年第3期6卷 243-252页

作者： Ping Mao yinping Lei Tingting zhang Chen Ma bo Jin Tong Li Institute of Materia Medica Chinese Academy of Medical Sciences and Peking Union Medical College

A highly rapid and sensitive liquid chromatographic–electrospray ionization tandem mass spectrometric(LC–ESI-MS/MS) method was developed and validated for the determination of trans-δ-viniferin(Rs-1) in rat plasma, urine and feces. All biological samples were prepared by liquid–liquid extraction and hesperetin was included as an internal standard(IS). Chromatographic separation was achieved on a shim-pack XR-ODS column using a gradient mobile phase. MS/MS detection was performed by negative ion electrospray ionization. The method was sensitive with a lower limit of quantification of 1.42 ng/m L and linear over the range of 1.42–2172 ng/m L in all matrices. The method was applied to study the pharmacokinetics, bioavailability, metabolism, and excretion of Rs-1 in rats following a single oral or intravenous dose. Two metabolites, Rs-1 glucuronide and Rs-1 sulfate, were detected in plasma and in urine after administration of Rs-1. The absolute oral bioavailability of Rs-1 was2.3%, and the total absorption rose to 31.5% with addition of its glucuronide and sulfate metabolites. Only0.09% of the gavaged dose, including Rs-1 and metabolites, was excreted in the urine, while 60.3% was found in the feces in unchanged form. The results indicate that both poor absorption and extensive metabolism were the important factors that led to the poor bioavailability of Rs-1, which can provide a basis for further studies on structural modification and dosage form design.

关键词： Viniferin Pharmacokinetics Excretion Metabolism bioavailability LC–MS/MS

Review on thermal performance of phase change energy storage building envelope

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Chinese Science bulletin 2009年第6期54卷 920-928页

作者： WANG Xin zhang yinping XIAO Wei ZENG RuoLang zhang QunLi DI HongFa Department of building Science Tsinghua University Beijing 100084 China

Improving the thermal performance of building envelope is an important way to save building energy consumption. The phase change energy storage building envelope is helpful to effective use of re-newable energy, reducing building operational energy consumption, increasing building thermal com-fort, and reducing environment pollution and greenhouse gas emission. This paper presents the con-cept of ideal energy-saving building envelope, which is used to guide the building envelope material selection and thermal performance design. This paper reviews some available researches on phase change building material and phase change energy storage building envelope. At last, this paper pre-sents some current problems needed further research.

关键词：建筑围护结构热性能相变蓄能综述可再生能源建筑能耗业务建设

Increasing prevalence of asthma and allergy in beijing pre-school children: Is exclusive breastfeeding for more than 6 months protective?

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Chinese Science bulletin 2013年第25期58卷 4190-4202页

作者： QU Fang wes.hler louis. b. SUNDELL Jan zhang yinping Department of building Science Tsinghua University

This study evaluated the prevalence and risk factors for asthma,allergy and related symptoms;and breastfeeding patterns and durations for 5479 beijing children aged 3–*** of children in randomly selected kindergartens wrote responses to a questionnaire used *** study aimed to evaluate trends in the prevalence of asthma and related illnesses,and to determine whether"more"breastfeeding,defined as exclusive,>6 months,was associated with reduced *** has increased in this age group between 1990 and 2011,with the steepest increase in the last 2–3 *** the total,14.2%(779)children were breastfed exclusively for>6 *** efficacy of"more"breastfeeding was tested in a subset with two strong risk factors,positive family history(for asthma and/or allergy)and male gender."More"breastfeeding was found to be significantly protective(aOR 0.42,Pbset against Doctor-diagnosed asthma(D-asthma).Protection that did not reach statistical significance was also found for this subset against Wheeze ever,Cough at night,Rhinitis ever,Doctor-diagnosed rhinitis(D-rhinitis)and *** greatest protective effects were found for girls with no family history of asthma or allergy,reaching statistical significance for Wheeze ever(aOR 0.48,Pbreastfeeding was not consistently associated with either a protective or risk effect for Eczema.

关键词：母乳喂养保护作用学前儿童患病率哮喘过敏北京风险因素

Effects of land-use changes on organic carbon in bulk soil and associated physical fractions in China's Horqin Sandy Grassland

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Research in Cold and Arid Regions 2015年第1期7卷 50-58页

作者： YuQiang Li yinping Chen ShaoKun Wang WenDa Huang JianPeng zhang Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences School of Environmental and Municipal Engineering Lanzhou Jiaotong University

The Horqin Sandy Grassland is one of the most seriously desertified areas in China＇s agro-pastoral ecotone due to its fragile ecology, combined with improper and unsustainable land management. We investigated organic carbon changes in bulk soil （0 to 5 cm）, light fraction of soil organic matter, and soil particle-size fractions induced by land-use and cover type changes. The results indicated that total soil organic carbon （SOC） storage decreased by 121 g/m^2 with the conversion of grassland into farmland for 30 years, and increased by 261 g/m^2 with the conversion of grassland into plantation for 30 years. Total SOC storage decreased by 157 g/m^2 as a result of severe grassland desertification due to long-term continuous livestock grazing, whereas total SOC increased by 111 g/m^2 following the practice of grazing exclusion （16 years） in desertified areas. Changes in land-use and cover type also show great effects on carbon storage in soil physical fractions.

关键词： carbon storage soil fraction desertification restoration

比较小视野多激发平面回波序列DWI与常规单激发平面回波序列DWI在直肠癌中的应用价值

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中国医学计算机成像杂志 2024年第3期30卷 338-342页

作者：张海妮曾建威王冲王梓又刘忠啸邱慎满吴鹏孟闫凯庄银苹孙存杰徐凯徐州医科大学附属医院影像科徐州市221002 徐州医科大学影像学院徐州医科大学医学技术学院江苏省医学影像与数字医学工程研究中心飞利浦医疗上海

目的:比较直肠癌小视野(rFOV)基于图像空间重建(IRIS)技术弥散加权成像(rFOV IRIS-DWI)序列与常规视野(fFOV)单激发平面回波成像(ssEPI)DWI(ssEPI-DWI)序列的图像质量。方法:回顾性收集2022年10月—2023年8月于我院进行直肠MRI检查的30... 详细信息

目的:比较直肠癌小视野(rFOV)基于图像空间重建(IRIS)技术弥散加权成像(rFOV IRIS-DWI)序列与常规视野(fFOV)单激发平面回波成像(ssEPI)DWI(ssEPI-DWI)序列的图像质量。方法:回顾性收集2022年10月—2023年8月于我院进行直肠MRI检查的30例直肠癌患者资料。入组患者均采用3.0 T MR扫描仪进行检查,均完成rFOV IRIS-DWI序列、ssEPI-DWI序列扫描。所有图像均传至Philips IntelligenceSpace Portal后处理工作站分析。由一名具有20年以上直肠癌MRI诊断经验的高级职称医生,分别在b=800 mm^(2)/s和b=1000 mm^(2)/s的DWI图像上评估2组图像质量:主观评价采用5分制评分,包括总体图像质量、图像伪影、图像变形、病变对比度、图像解剖结构;客观评价包括肿瘤最大层面面积、平均最大面积、信噪比(SNR)和对比度噪声比(CNR)。采用SPSS 26.0统计软件进行数据分析。2组DWI图像质量主观评分比较采用配对Wilcoxon秩和检验,客观评价指标比较采用配对样本t检验。结果:rFOV IRIS-DWI序列主观评价中的图像总体质量、变形、伪影、对比度、解剖结构均优于fFOV ssEPI-DWI序列(P<0.05)。rFOV IRIS-DWI序列、fFOV ssEPI-DWI序列的主观评价总分分别为20.6分、17.4分,差异具有统计学意义(P<0.05)。rFOV IRIS-DWI序列的肿瘤最大层面面积、平均最大面积均大于fFOV ssEPI-DWI序列(P<0.05)。结论:相对于fFOV ssEPI-DWI序列,rFOV IRIS-DWI序列能明显提高直肠癌图像分辨率,减轻磁敏感伪影和图像变形,提高图像质量。

关键词：直肠肿瘤磁共振成像图像质量弥散加权成像

Emerging contaminants:A One Health perspective

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The Innovation 2024年第4期5卷 140-170,139页

作者： Fang Wang Leilei Xiang Kelvin Sze-Yin Leung Martin Elsner Ying zhang Yuming Guo bo Pan Hongwen Sun Taicheng An Guangguo Ying bryan Wbrooks Deyi Hou Damian EHelbling Jianqiang Sun Hao Qiu Timothy MVogel Wei zhang Yanzheng Gao Myrna JSimpson Yi Luo Scott XChang Guanyong Su bryan MWong Tzung-May Fu Dong Zhu Karl JJobst Chengjun Ge Frederic Coulon Jean Damascene Harindintwali Xiankui Zeng Haijun Wang Yuhao Fu Zhong Wei Rainer Lohmann Changer Chen Yang Song Concepcion Sanchez-Cid Yu Wang Ali El-Naggar Yiming Yao Yanran Huang Japhet Cheuk-Fung Law Chenggang Gu Huizhong Shen Yanpeng Gao Chao Qin Hao Li Tong zhang Natàlia Corcoll Min Liu Daniel SAlessi Hui Li Kristian Kbrandt Yolanda Pico Cheng Gu Jianhua Guo Jianqiang Su Philippe Corvini Mao Ye Teresa Rocha-Santos Huan He Yi Yang Meiping Tong Weina zhang Fidèle Suanon Ferdi brahushi Zhenyu Wang Syed AHashsham Marko Virta Qingbin Yuan Gaofei Jiang louis.A.Tremblay Qingwei bu Jichun Wu Willie Peijnenburg Edward Topp Xinde Cao Xin Jiang Minghui Zheng Taolin zhang Yongming Luo Lizhong Zhu Xiangdong Li Damiàbarceló Jianmin Chen baoshan Xing Wulf Amelung Zongwei Cai Ravi Naidu Qirong Shen Janusz Pawliszyn Yong-guan Zhu Andreas Schaeffer Matthias C.Rillig Fengchang Wu Gang Yu James M.Tiedje State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China University of Chinese Academy of Sciences Beijing 100049China Department of Chemistry Hong Kong Baptist UniversityHong KongChina HKbU Institute of Research and Continuing Education Shenzhen Virtual University ParkShenzhenChina Technical University of Munich TUM School of Natural SciencesInstitute of Hydrochemistry85748 GarchingGermany School of Resources&Environment Northeast Agricultural UniversityHarbin 150030China Climate Air Quality Research UnitSchool of Public Health and Preventive MedicineMonash UniversityMelbourneVICAustralia Faculty of Environmental Science&Engineering Kunming University of Science&TechnologyKunming 650500China Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria College of Environmental Science and EngineeringNankai UniversityTianjin 300350China Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control School of Environmental Science and EngineeringInstitute of Environmental Health and Pollution ControlGuangdong University of TechnologyGuangzhou 510006China Ministry of Education Key Laboratory of Environmental Theoretical Chemistry South China Normal UniversityGuangzhouGuangdong 510006China Department of Environmental Science Baylor UniversityWacoTXUSA Center for Reservoir and Aquatic Systems Research(CRASR) Baylor UniversityWacoTXUSA School of Environment Tsinghua UniversityBeijing 100084China School of Civil and Environmental Engineering Cornell UniversityIthacaNY 14853USA Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province Zhejiang University of TechnologyHangzhou 310014China School of Environmental Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China Laboratoire d’Ecologie Microbienne Universite Claude Bernard Lyon 1UMR CNRS 5557UMR INRAE 1418VetAgro Sup69622 VilleurbanneFrance Department of Pla

Environmental pollution is escalating due to rapid global development that often prioritizes human needs over planetary *** global efforts to mitigate legacy pollutants,the continuous introduction of new substances remains a major threat to both people and the *** response,global initiatives are focusing on risk assessment and regulation of emerging contaminants,as demonstrated by the ongoing efforts to establish the UN’s Intergovernmental Science-Policy Panel on Chemicals,Waste,and Pollution *** review identifies the sources and impacts of emerging contaminants on planetary health,emphasizing the importance of adopting a One Health *** for monitoring and addressing these pollutants are discussed,underscoring the need for robust and socially equitable environmental policies at both regional and international *** actions are needed to transition toward sustainable pollution management practices to safeguard our planet for future generations.

关键词： pollution planet contaminants

Lightweight Multi-scale Convolutional Neural Network for Rice Leaf Disease Recognition

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Computers, Materials & Continua 2023年第1期74卷 983-994页

作者： Chang zhang Ruiwen Ni Ye Mu Yu Sun Thobela louis.Tyasi College of Information Technology Jilin Agricultural UniversityChangchun130118China Jilin Province Agricultural Internet of Things Technology Collaborative Innovation Center Changchun130118China Jilin Province Intelligent Environmental Engineering Research Center Changchun130118China Jilin Province Information Technology and Intelligent Agriculture Engineering Research Center Changchun130118China Department of Agricultural Economics and Animal Production University of LimpopoPrivate Bag X 1106Sovenga0727PolokwaneSouth Africa

In the field of agricultural information,the identification and prediction of rice leaf disease have always been the focus of research,and deep learning(DL)technology is currently a hot research topic in the field of pattern *** research and development of high-efficiency,highquality and low-cost automatic identification methods for rice diseases that can replace humans is an important means of dealing with the current situation from a technical *** paper mainly focuses on the problem of huge parameters of the Convolutional Neural Network(CNN)model and proposes a recognitionmodel that combines amulti-scale convolution module with a neural network model based on Visual Geometry Group(VGG).The accuracy and loss of the training set and the test set are used to evaluate the performance of the *** test accuracy of this model is 97.1%that has increased 5.87%over ***,the memory requirement is 26.1M,only 1.6%of the *** results show that this model performs better in terms of accuracy,recognition speed and memory size.

关键词： Rice leaf diseases deep learning lightweight convolution neural networks VGG

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上扣扭矩对特殊螺纹接头能量耗散的影响

焊管 2024年第7期47卷 26-31页

作者：唐家睿于洋苑清英张锦刚余晗曹银萍李远征晁利宁中油国家石油天然气管材工程技术研究中心有限公司西安710018 中国石油宝鸡石油钢管有限责任公司陕西宝鸡721008 西安石油大学西安710065

针对高温高压井动态载荷导致特殊螺纹接头密封性能降低的问题,基于微动接触理论,分析了密封面临界滑移状态,研究了不同上扣扭矩下特殊螺纹接头能量耗散及能量比率。结果表明:随着上扣扭矩的增大,特殊螺纹接头应力及接触压力增大,密封面... 详细信息

针对高温高压井动态载荷导致特殊螺纹接头密封性能降低的问题,基于微动接触理论,分析了密封面临界滑移状态,研究了不同上扣扭矩下特殊螺纹接头能量耗散及能量比率。结果表明:随着上扣扭矩的增大,特殊螺纹接头应力及接触压力增大,密封面黏着区逐渐扩大;特殊螺纹接头在不发生强度破坏前提下,适当增加上扣扭矩,可减小动态载荷引起的密封面能量耗散,降低滑移引起的磨损,有利于提高接头的密封性能;三种上扣扭矩及50~90 MPa内压下,该类接头密封指数均大于对应内压下的临界密封指数,满足接头的密封要求。通过研究,明确了上扣扭矩与能量耗散及能量比率的关系,可为动态载荷下特殊螺纹接头密封性能研究提供参考。

关键词：特殊螺纹接头上扣扭矩能量耗散能量比率