In this work,we report observations of three comets:38P/Stephan-Oterma,64P/Swift-Gehrels,and C/2017 M4(ATLAS),conducted with the Nanshan one-meter wide-field telescope in 2018 August and November,and 2019January.We ex...In this work,we report observations of three comets:38P/Stephan-Oterma,64P/Swift-Gehrels,and C/2017 M4(ATLAS),conducted with the Nanshan one-meter wide-field telescope in 2018 August and November,and 2019January.We extracted morphological features through image enhancement techniques and calculated the dust activity parameter,Afρ,along with dust mass loss rates and coma color indices using broadband photometric data.Our morphological analysis uncovered a spectrum of dust characteristics among the observed comets,ranging from a significant twisted structure in comet 38P/Stephan-Oterma’s coma to the regular coma envelope surrounding comet 64P/Swift-Gehrels.The Afρvalues varied between 148.8±0.3 cm for 64P/Swift-Gehrels and1118.5±6.2 cm for C/2017 M4(ATLAS)(measured within a reference aperture radius ofρ=6″),indicating a range from moderate to high activity levels.Dust mass loss rates were estimated from 328.1 kg s^(-1)for comet 64P/Swift-Gehrels to 1395.5 kg s^(-1)for comet C/2017 M4(ATLAS).The color indices of comets 38P/Stephan-Oterma and C/2017 M4(ATLAS)closely resemble the average colors of active short-period comets and active longperiod comets,respectively.In contrast,64P/Swift-Gehrels exhibits a significantly bluer hue than typical Jupiter family comets.展开更多
本文以胖东来企业为研究对象,运用市场营销的4P理论,即产品(Product)、价格(Price)、渠道(Place)、促销(Promotion),对其营销策略进行全面分析。胖东来注重产品的品质与多样性,以满足不同消费者的需求。其产品策略包括提供多样化的商品...本文以胖东来企业为研究对象,运用市场营销的4P理论,即产品(Product)、价格(Price)、渠道(Place)、促销(Promotion),对其营销策略进行全面分析。胖东来注重产品的品质与多样性,以满足不同消费者的需求。其产品策略包括提供多样化的商品选择,深入挖掘商品的特点,以及通过自有品牌强调质量。采取了合理的价格策略,通过批量采购为顾客提供质优价实的产品。同时避免频繁的促销活动,而是注重为顾客提供持续的价值。在渠道策略方面,胖东来通过其广泛的连锁店网络,确保了其在目标市场的广泛覆盖。其商超设计注重人性化和舒适度,为顾客提供愉快的购物体验。胖东来的促销策略主要依赖于社交媒体和短视频平台的活跃推广,以及通过提供优质的顾客服务来增强品牌形象,他们还利用直播和限时优惠等手段吸引顾客等。通过对胖东来企业的4P营销策略进行深入剖析,总结其成功经验,并提出改进建议,以期为我国零售企业提供一定的参考和借鉴。This article takes Pangdonglai Enterprise as the research object and applies the 4P theory of marketing, namely product, price, place, and promotion, to comprehensively analyze its marketing strategy. Pangdonglai pays attention to the quality and diversity of its products to meet the needs of different consumers. Its product strategy includes providing diverse product choices, delving into the characteristics of the products, and emphasizing quality through its own brand. We have adopted a reasonable pricing strategy and provided customers with high-quality and affordable products through bulk procurement. At the same time, avoid frequent promotional activities and focus on providing customers with sustained value. In terms of channel strategy, Pangdonglai has ensured its wide coverage in the target market through its extensive chain store network. Its supermarket design emphasizes humanization and comfort, providing customers with a pleasant shopping experience. The promotion strategy of Pangdonglai mainly relies on active promotion on social media and short video platforms, as well as enhancing brand image by providing high-quality customer service. They also use live streaming and limited time discounts to attract customers. Through in-depth analysis of the 4P marketing strategy of Pangdonglai Enterprise, this paper summarizes its successful experience, and proposes improvement suggestions, in order to provide certain reference and inspiration for retail enterprises in China.展开更多
基金supported by the Natural Science Foundation of Xinjiang Uygur Autonomous Region of China(grant No.2021D01B112)Tianshan Talent Training Program through the grant 2023TSYCCX0101。
文摘In this work,we report observations of three comets:38P/Stephan-Oterma,64P/Swift-Gehrels,and C/2017 M4(ATLAS),conducted with the Nanshan one-meter wide-field telescope in 2018 August and November,and 2019January.We extracted morphological features through image enhancement techniques and calculated the dust activity parameter,Afρ,along with dust mass loss rates and coma color indices using broadband photometric data.Our morphological analysis uncovered a spectrum of dust characteristics among the observed comets,ranging from a significant twisted structure in comet 38P/Stephan-Oterma’s coma to the regular coma envelope surrounding comet 64P/Swift-Gehrels.The Afρvalues varied between 148.8±0.3 cm for 64P/Swift-Gehrels and1118.5±6.2 cm for C/2017 M4(ATLAS)(measured within a reference aperture radius ofρ=6″),indicating a range from moderate to high activity levels.Dust mass loss rates were estimated from 328.1 kg s^(-1)for comet 64P/Swift-Gehrels to 1395.5 kg s^(-1)for comet C/2017 M4(ATLAS).The color indices of comets 38P/Stephan-Oterma and C/2017 M4(ATLAS)closely resemble the average colors of active short-period comets and active longperiod comets,respectively.In contrast,64P/Swift-Gehrels exhibits a significantly bluer hue than typical Jupiter family comets.
文摘本文以胖东来企业为研究对象,运用市场营销的4P理论,即产品(Product)、价格(Price)、渠道(Place)、促销(Promotion),对其营销策略进行全面分析。胖东来注重产品的品质与多样性,以满足不同消费者的需求。其产品策略包括提供多样化的商品选择,深入挖掘商品的特点,以及通过自有品牌强调质量。采取了合理的价格策略,通过批量采购为顾客提供质优价实的产品。同时避免频繁的促销活动,而是注重为顾客提供持续的价值。在渠道策略方面,胖东来通过其广泛的连锁店网络,确保了其在目标市场的广泛覆盖。其商超设计注重人性化和舒适度,为顾客提供愉快的购物体验。胖东来的促销策略主要依赖于社交媒体和短视频平台的活跃推广,以及通过提供优质的顾客服务来增强品牌形象,他们还利用直播和限时优惠等手段吸引顾客等。通过对胖东来企业的4P营销策略进行深入剖析,总结其成功经验,并提出改进建议,以期为我国零售企业提供一定的参考和借鉴。This article takes Pangdonglai Enterprise as the research object and applies the 4P theory of marketing, namely product, price, place, and promotion, to comprehensively analyze its marketing strategy. Pangdonglai pays attention to the quality and diversity of its products to meet the needs of different consumers. Its product strategy includes providing diverse product choices, delving into the characteristics of the products, and emphasizing quality through its own brand. We have adopted a reasonable pricing strategy and provided customers with high-quality and affordable products through bulk procurement. At the same time, avoid frequent promotional activities and focus on providing customers with sustained value. In terms of channel strategy, Pangdonglai has ensured its wide coverage in the target market through its extensive chain store network. Its supermarket design emphasizes humanization and comfort, providing customers with a pleasant shopping experience. The promotion strategy of Pangdonglai mainly relies on active promotion on social media and short video platforms, as well as enhancing brand image by providing high-quality customer service. They also use live streaming and limited time discounts to attract customers. Through in-depth analysis of the 4P marketing strategy of Pangdonglai Enterprise, this paper summarizes its successful experience, and proposes improvement suggestions, in order to provide certain reference and inspiration for retail enterprises in China.
