In this paper, the Box-Jenkins modelling procedure is used to determine an ARIMA model and go further to forecasting. The mobile cellular subscription data for the study were taken from the administrative data submitt...In this paper, the Box-Jenkins modelling procedure is used to determine an ARIMA model and go further to forecasting. The mobile cellular subscription data for the study were taken from the administrative data submitted to the Zambia Information and Communications Technology Authority (ZICTA) as quarterly returns by all three mobile network operators Airtel Zambia, MTN Zambia and Zamtel. The time series of annual figures for mobile cellular subscription for all mobile network operators is from 2000 to 2014 and has a total of 15 observations. Results show that the ARIMA (1, 2, 1) is an adequate model which best fits the mobile cellular subscription time series and is therefore suitable for forecasting subscription. The model predicts a gradual rise in mobile cellular subscription in the next 5 years, culminating to about 9.0% cumulative increase in 2019.展开更多
柑橘作为世界上重要经济作物之一,随着生产规模的扩大,病虫害日益成为制约其发展的瓶颈。在为害柑橘的众多害虫中,柑橘木虱Diaphorina citri Kuwayama为害最为严重,其成虫和若虫不仅能直接刺吸为害柑橘、柠檬等芸香科植物,还是传播柑橘...柑橘作为世界上重要经济作物之一,随着生产规模的扩大,病虫害日益成为制约其发展的瓶颈。在为害柑橘的众多害虫中,柑橘木虱Diaphorina citri Kuwayama为害最为严重,其成虫和若虫不仅能直接刺吸为害柑橘、柠檬等芸香科植物,还是传播柑橘黄龙病(Huanglongbing,HLB)的重要媒介。“Push-Pull”策略作为害虫生态调控(Ecological regulation and management of pests,ERMP)中的一项重要技术,具有“经济、简便、有效、绿色”等优点。通过推广普及“Push-Pull”技术,将有助于控制柑橘木虱的为害,推动我国柑橘产业绿色发展。本文以综述“Push-Pull”策略为例,分别介绍了“Push”和“Pull”两个组分的研究进展,展望“Push-Pull”策略在防治柑橘木虱的发展应用,希望能为柑橘生产过程中经济、简便、有效地治理柑橘木虱提供理论参考和技术支撑,推动我国柑橘产业健康可持续发展。展开更多
Journal of Materials Science&Technology;(JMST)(ISSN 1005-0302,CN21-1315/TG)started in 1985,having a previous name:Chinese Journal of Metal Science and Technology.JMST is an international journal published in Engli...Journal of Materials Science&Technology;(JMST)(ISSN 1005-0302,CN21-1315/TG)started in 1985,having a previous name:Chinese Journal of Metal Science and Technology.JMST is an international journal published in English.The China Association for Science and Technology is responsible for this journal.It is sponsored by the Chinese Society for Metals(CSM),the Chinese Materials Research Society(CMRS)and the Institute of Metal Research Chinese Academy of Sciences(IMR CAS)展开更多
Chinese Journal of Population Resources and Environment,Print ISSN 1004-2857,Online ISSN 2325-4262,Volume 12,2014.Chinese Journal of Population Resources and Environment(www.tandfonline.com/tpre)is a peer-reviewed jou...Chinese Journal of Population Resources and Environment,Print ISSN 1004-2857,Online ISSN 2325-4262,Volume 12,2014.Chinese Journal of Population Resources and Environment(www.tandfonline.com/tpre)is a peer-reviewed journal published in March,June,September,and December by Taylor&Francis,4 Park Square,Milton Park,Abingdon,Oxon,OX14 4RN,UK.Institutional Subscription Rate(print and online):$550/?33/?40Institutional Subscription Rate(online-only):$481/?91/?85(+VAT where applicable)Personal Subscription Rate(print-only):$152/?2/?展开更多
Rice Science(ISSN 1672-6308),sponsored by the China National Rice Research Institute and published by the Elsevier BV,is an international peer-reviewed journal with four issues and one volume per year.It publishes ori...Rice Science(ISSN 1672-6308),sponsored by the China National Rice Research Institute and published by the Elsevier BV,is an international peer-reviewed journal with four issues and one volume per year.It publishes original research展开更多
Chinese Journal of Population Resources and Environment,Print ISSN 1004-2857,Online ISSN 2325-4262,Volume 14,2016.Chinese Journal of Population Resources and Environment(www.tandfonline.com/tpre)is a peer-reviewed jou...Chinese Journal of Population Resources and Environment,Print ISSN 1004-2857,Online ISSN 2325-4262,Volume 14,2016.Chinese Journal of Population Resources and Environment(www.tandfonline.com/tpre)is a peer-reviewed journal published in March,June,September,and December by Taylor&Francis,4 Park Square,Milton Park,Abingdon,Oxon,OX14 4RN,UK.Institutional Subscription Rate(print and online):$606/￡367/(?)485Institutional Subscription Rate(online-only):$530/￡321/(?)424(+VAT where applicable)展开更多
Chinese Journal of Population Resources and Environment,Print ISSN 1004-2857,Online ISSN 2325-4262,Volume 11,2013,Chinese Journal of Population Resources and Environment(www.tandfonline.com/tpre)is a peer-reviewed jou...Chinese Journal of Population Resources and Environment,Print ISSN 1004-2857,Online ISSN 2325-4262,Volume 11,2013,Chinese Journal of Population Resources and Environment(www.tandfonline.com/tpre)is a peer-reviewed journal published in March,June,September,and December by Taylor&Francis,4 Park Square,Milton Park,Abingdon,Oxon,OX14 4RN,UK.展开更多
The new Acta Metallurgica Sinica(English Edition),a top level journal of materials Sciencein China,is a bimonthly scientific periodical sponsored by the Chinese Society for Metals andmanaged by the Institute of Metal ...The new Acta Metallurgica Sinica(English Edition),a top level journal of materials Sciencein China,is a bimonthly scientific periodical sponsored by the Chinese Society for Metals andmanaged by the Institute of Metal Research,Chinese Academy of Sciences.It mainly containsthe high—level short reports on the new progresses of materials science which have not been pub-lished elsewhere,including materials physical physics,metallurgy and process metallurgy cov-ering the fields of mining and ore dressing,production metallurgy,foundry,metal working,powder metallurgy,joining and welding,oxidation and corrosion,composites,etc..Theeditor—in—chief,Prof.SHIH Changxu,is an academician of Chinese Academy of Sciences aswell as an academician of Chinese Academy of Engineering.Deputy edito—in—Chief isProf.XING Zhongshu.展开更多
Rice Science (ISSN 1672-6308), sponsored by the China National Rice Research Institute and published by the Elsevier BV, is an international peer-reviewed journal with four issues and one volume
Chinese Journal of Population Resources and Environment,Print ISSN 1004-2857,Online ISSN 2325-4262,Volume 11,2013.Chinese Journal of Population Resources and Environment(www.tandfonline.com/tpre)is a peer-reviewed jou...Chinese Journal of Population Resources and Environment,Print ISSN 1004-2857,Online ISSN 2325-4262,Volume 11,2013.Chinese Journal of Population Resources and Environment(www.tandfonline.com/tpre)is a peer-reviewed joumal published in March,June,September,and December by Taylor&Francis,4 Park Square,Milton Park,Abingdon,Oxon,OX14 4RN,UK.Institutional Subscription Rate(print and online):$525/(?)318/(?)420Institutional Subscription Rate(online-only):$459/(?)278/(?)368(+VAT where applicable)Personal Subscription Rate(print-only):$145/(?)88/(?)展开更多
Chinese Journal of Population Resources and Environment,Print ISSN 1004-2857,Online ISSN 2325-4262,Volume 13,2015.Chinese Journal of Population Resources and Environment(www.tandfonline.com/tpre)is a peer-reviewed jou...Chinese Journal of Population Resources and Environment,Print ISSN 1004-2857,Online ISSN 2325-4262,Volume 13,2015.Chinese Journal of Population Resources and Environment(www.tandfonline.com/tpre)is a peer-reviewed journal published in March,June,September,and December by Taylor&Francis,4 Park Square,Milton Park,Abingdon,Oxon,OX14 4RN,UK.展开更多
Chinese Journal of Population Resources and Environment, Print ISSN 1004-2857, Online ISSN 2325-4262, Volume 16, 2018.Chinese Journal of Population Resources and Environment (www.tandfonline.com/tpre) is a peer-review...Chinese Journal of Population Resources and Environment, Print ISSN 1004-2857, Online ISSN 2325-4262, Volume 16, 2018.Chinese Journal of Population Resources and Environment (www.tandfonline.com/tpre) is a peer-reviewed journal published in March, June, September, and December by Taylor&Francis, 4 Park Square, Milton Park, Abingdon, Oxon, OX14 4RN, UK.展开更多
Chinese Journal of Population Resources and Environment,Print ISSN 1004-2857,Online ISSN 2325-4262,Volume 13,2015.Chinese Journal of Population Resources and Environment(www.tandfonline.com/tpre)is a peer-reviewed jou...Chinese Journal of Population Resources and Environment,Print ISSN 1004-2857,Online ISSN 2325-4262,Volume 13,2015.Chinese Journal of Population Resources and Environment(www.tandfonline.com/tpre)is a peer-reviewed journal published in March,June,September,and December by Taylor&Francis,4 Park Square,Milton Park,Abingdon,Oxon,OX14 4RN,UK.展开更多
Chinese Journal of Population Resources and Environment,Print ISSN 1004-2857,Online ISSN 2325-4262,Volume 12,2014.Chinese Journal of Population Resources and Environment(www.tandfonline.com/tpre)is a peer-reviewed jou...Chinese Journal of Population Resources and Environment,Print ISSN 1004-2857,Online ISSN 2325-4262,Volume 12,2014.Chinese Journal of Population Resources and Environment(www.tandfonline.com/tpre)is a peer-reviewed journal published in March,June,September,and December by Taylor&Francis,4 Park Square,Milton Park,Abingdon,Oxon,0X14 4RN,UK.Institutional Subscription Rate(print and online)展开更多
Chinese Journal of Population Resources and Environment,Print ISSN 1004-2857,Online ISSN 2325-4262,Volume 13,2015.Chinese Journal of Population Resources and Environment(www.tandfonline.com/tpre)is a peer-reviewed jou...Chinese Journal of Population Resources and Environment,Print ISSN 1004-2857,Online ISSN 2325-4262,Volume 13,2015.Chinese Journal of Population Resources and Environment(www.tandfonline.com/tpre)is a peer-reviewed journal published in March,June,September,and December by Taylor&hrancis,4 Park Square,Milton Park,Abingdon,Oxon,OX14 4RN,UK.展开更多
文摘In this paper, the Box-Jenkins modelling procedure is used to determine an ARIMA model and go further to forecasting. The mobile cellular subscription data for the study were taken from the administrative data submitted to the Zambia Information and Communications Technology Authority (ZICTA) as quarterly returns by all three mobile network operators Airtel Zambia, MTN Zambia and Zamtel. The time series of annual figures for mobile cellular subscription for all mobile network operators is from 2000 to 2014 and has a total of 15 observations. Results show that the ARIMA (1, 2, 1) is an adequate model which best fits the mobile cellular subscription time series and is therefore suitable for forecasting subscription. The model predicts a gradual rise in mobile cellular subscription in the next 5 years, culminating to about 9.0% cumulative increase in 2019.
文摘柑橘作为世界上重要经济作物之一,随着生产规模的扩大,病虫害日益成为制约其发展的瓶颈。在为害柑橘的众多害虫中,柑橘木虱Diaphorina citri Kuwayama为害最为严重,其成虫和若虫不仅能直接刺吸为害柑橘、柠檬等芸香科植物,还是传播柑橘黄龙病(Huanglongbing,HLB)的重要媒介。“Push-Pull”策略作为害虫生态调控(Ecological regulation and management of pests,ERMP)中的一项重要技术,具有“经济、简便、有效、绿色”等优点。通过推广普及“Push-Pull”技术,将有助于控制柑橘木虱的为害,推动我国柑橘产业绿色发展。本文以综述“Push-Pull”策略为例,分别介绍了“Push”和“Pull”两个组分的研究进展,展望“Push-Pull”策略在防治柑橘木虱的发展应用,希望能为柑橘生产过程中经济、简便、有效地治理柑橘木虱提供理论参考和技术支撑,推动我国柑橘产业健康可持续发展。
文摘Journal of Materials Science&Technology;(JMST)(ISSN 1005-0302,CN21-1315/TG)started in 1985,having a previous name:Chinese Journal of Metal Science and Technology.JMST is an international journal published in English.The China Association for Science and Technology is responsible for this journal.It is sponsored by the Chinese Society for Metals(CSM),the Chinese Materials Research Society(CMRS)and the Institute of Metal Research Chinese Academy of Sciences(IMR CAS)
文摘Chinese Journal of Population Resources and Environment,Print ISSN 1004-2857,Online ISSN 2325-4262,Volume 12,2014.Chinese Journal of Population Resources and Environment(www.tandfonline.com/tpre)is a peer-reviewed journal published in March,June,September,and December by Taylor&Francis,4 Park Square,Milton Park,Abingdon,Oxon,OX14 4RN,UK.Institutional Subscription Rate(print and online):$550/?33/?40Institutional Subscription Rate(online-only):$481/?91/?85(+VAT where applicable)Personal Subscription Rate(print-only):$152/?2/?
文摘Rice Science(ISSN 1672-6308),sponsored by the China National Rice Research Institute and published by the Elsevier BV,is an international peer-reviewed journal with four issues and one volume per year.It publishes original research
文摘Chinese Journal of Population Resources and Environment,Print ISSN 1004-2857,Online ISSN 2325-4262,Volume 14,2016.Chinese Journal of Population Resources and Environment(www.tandfonline.com/tpre)is a peer-reviewed journal published in March,June,September,and December by Taylor&Francis,4 Park Square,Milton Park,Abingdon,Oxon,OX14 4RN,UK.Institutional Subscription Rate(print and online):$606/￡367/(?)485Institutional Subscription Rate(online-only):$530/￡321/(?)424(+VAT where applicable)
文摘Chinese Journal of Population Resources and Environment,Print ISSN 1004-2857,Online ISSN 2325-4262,Volume 11,2013,Chinese Journal of Population Resources and Environment(www.tandfonline.com/tpre)is a peer-reviewed journal published in March,June,September,and December by Taylor&Francis,4 Park Square,Milton Park,Abingdon,Oxon,OX14 4RN,UK.
文摘The new Acta Metallurgica Sinica(English Edition),a top level journal of materials Sciencein China,is a bimonthly scientific periodical sponsored by the Chinese Society for Metals andmanaged by the Institute of Metal Research,Chinese Academy of Sciences.It mainly containsthe high—level short reports on the new progresses of materials science which have not been pub-lished elsewhere,including materials physical physics,metallurgy and process metallurgy cov-ering the fields of mining and ore dressing,production metallurgy,foundry,metal working,powder metallurgy,joining and welding,oxidation and corrosion,composites,etc..Theeditor—in—chief,Prof.SHIH Changxu,is an academician of Chinese Academy of Sciences aswell as an academician of Chinese Academy of Engineering.Deputy edito—in—Chief isProf.XING Zhongshu.
文摘Rice Science (ISSN 1672-6308), sponsored by the China National Rice Research Institute and published by the Elsevier BV, is an international peer-reviewed journal with four issues and one volume
文摘Chinese Journal of Population Resources and Environment,Print ISSN 1004-2857,Online ISSN 2325-4262,Volume 11,2013.Chinese Journal of Population Resources and Environment(www.tandfonline.com/tpre)is a peer-reviewed joumal published in March,June,September,and December by Taylor&Francis,4 Park Square,Milton Park,Abingdon,Oxon,OX14 4RN,UK.Institutional Subscription Rate(print and online):$525/(?)318/(?)420Institutional Subscription Rate(online-only):$459/(?)278/(?)368(+VAT where applicable)Personal Subscription Rate(print-only):$145/(?)88/(?)
文摘Chinese Journal of Population Resources and Environment,Print ISSN 1004-2857,Online ISSN 2325-4262,Volume 13,2015.Chinese Journal of Population Resources and Environment(www.tandfonline.com/tpre)is a peer-reviewed journal published in March,June,September,and December by Taylor&Francis,4 Park Square,Milton Park,Abingdon,Oxon,OX14 4RN,UK.
文摘Chinese Journal of Population Resources and Environment, Print ISSN 1004-2857, Online ISSN 2325-4262, Volume 16, 2018.Chinese Journal of Population Resources and Environment (www.tandfonline.com/tpre) is a peer-reviewed journal published in March, June, September, and December by Taylor&Francis, 4 Park Square, Milton Park, Abingdon, Oxon, OX14 4RN, UK.
文摘Chinese Journal of Population Resources and Environment,Print ISSN 1004-2857,Online ISSN 2325-4262,Volume 13,2015.Chinese Journal of Population Resources and Environment(www.tandfonline.com/tpre)is a peer-reviewed journal published in March,June,September,and December by Taylor&Francis,4 Park Square,Milton Park,Abingdon,Oxon,OX14 4RN,UK.
文摘Chinese Journal of Population Resources and Environment,Print ISSN 1004-2857,Online ISSN 2325-4262,Volume 12,2014.Chinese Journal of Population Resources and Environment(www.tandfonline.com/tpre)is a peer-reviewed journal published in March,June,September,and December by Taylor&Francis,4 Park Square,Milton Park,Abingdon,Oxon,0X14 4RN,UK.Institutional Subscription Rate(print and online)
文摘Chinese Journal of Population Resources and Environment,Print ISSN 1004-2857,Online ISSN 2325-4262,Volume 13,2015.Chinese Journal of Population Resources and Environment(www.tandfonline.com/tpre)is a peer-reviewed journal published in March,June,September,and December by Taylor&hrancis,4 Park Square,Milton Park,Abingdon,Oxon,OX14 4RN,UK.
