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大学生消费行为和消费结构研究 预览 被引量:2
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作者 赵颖 陶克涛 《内蒙古财经大学学报》 2019年第1期45-48,共4页
大学生作为独立的社会群体,有着巨大的消费需求但是却没有独立的经济能力。本文主要是通过对大学生消费行为以及消费结构的研究得出当今大学生的消费现状,随着网络信息的不断发展,大学生的消费已经成为了一个不可避免的问题,存在着不同... 大学生作为独立的社会群体,有着巨大的消费需求但是却没有独立的经济能力。本文主要是通过对大学生消费行为以及消费结构的研究得出当今大学生的消费现状,随着网络信息的不断发展,大学生的消费已经成为了一个不可避免的问题,存在着不同的影响,本文揭露了大学生消费的特点。主要是通过大学生群体消费的动机、所表现出来的特点以及通过调查发现大学生消费中的问题并且能够提出解决办法,以此帮助大学生树立正确的消费观念以及价值观念。 展开更多
关键词 消费 消费结构 消费行为
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Survey on Factors Influencing the Decline in Chicken Consumption of Urban Residents in Liaoning Province 预览
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作者 Na DING Chunling PAN +1 位作者 Zhe ZHANG Shanshan GAO 《亚洲农业研究:英文版》 2019年第4期11-16,共6页
In order to analyze the key factors influencing the decline in chicken consumption in urban residents in Liaoning Province since2008,and understand the characteristics of chicken consumption behavior of consumers in L... In order to analyze the key factors influencing the decline in chicken consumption in urban residents in Liaoning Province since2008,and understand the characteristics of chicken consumption behavior of consumers in Liaoning Province,this paper used questionnaire survey to analyze the consumption of chicken and chicken products in Shenyang,Dalian,Anshan and Benxi of Liaoning Province. According to the analysis,the main reason for the decline in the chicken consumption is that the growth of pork consumption quickly replaced part of chicken consumption,which may be caused by the consumption preference of local residents. Another important reason is the frequent occurrence of incidents of chicken food quality and safety,leading to the worry about the safety of chicken food and accordingly reducing the times of chicken consumption. In addition,compared with the pork,beef,and mutton,the taste of chicken is slightly worse. In the period of consumption upgrading,the growth and decline of a product is a common phenomenon. 展开更多
关键词 CHICKEN and CHICKEN products CONSUMPTION quantity CONSUMPTION characteristics Influencing FACTORS
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Natural gas consumption forecasting model based on coal-to-gas project in China
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作者 Zhiqiang Wang Yichen Li +1 位作者 Zhanjun Feng Kai Wen 《全球能源互联网:英文版》 2019年第5期430-436,共7页
Natural gas is widely used because it is environmentally friendly,particularly in reducing carbon emission and improving the Air Quality Index(AQI)around densely populated cities.China has initiated a coal-to-gas proj... Natural gas is widely used because it is environmentally friendly,particularly in reducing carbon emission and improving the Air Quality Index(AQI)around densely populated cities.China has initiated a coal-to-gas project(CGP)to improve the air quality in northern China.As a subcompany of China National Petroleum Corporation,PetroChina Natural Gas Marketing North Company has been focusing on natural gas resource allocation while considering numerous issues such as ensuring the bottom line of livelihood requirements in winter and the performance of economic indicators for an entire calendar year in the northern part of China.Therefore,the accurate prediction of natural gas consumption is important to PetroChina Natural Gas Marketing North Company.It has become a challenge to forecast natural gas consumption because the natural gas market has changed considerably because of the CGP.Natural gas consumption cannot be forecasted using conventional models.This study analyzes the characteristics of the CGP based on the data obtained from rural individual users and company users.Based on the analysis,the gas consumption in winter is predicted using two different forecasting approaches.The methods presented in this paper provide a basis for formulating effective measures for natural gas scheduling in the northern part of China. 展开更多
关键词 Natural gas Coal to gas project CGP Gas consumption forecast!ng End user consumption characteristics.
New Consumption Trend in Shanghai 预览
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作者 YING CHEN 《今日中国:英文版》 2019年第12期54-56,共3页
SHANGHAI is the largest economic center in China,and has become a new engine for stimulating domestic consumption.
关键词 CONSUMPTION consumption. TREND
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Costing Principles of a Denim Pant 预览
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作者 A T M Mohibullah Umme Magreba Takebira +3 位作者 Mustafijur Rahman Md. Saiful Alam A. S. M. Sayem Sarker Shadman Quamar Mahir 《纺织科学与技术(英文)》 2019年第2期48-60,共13页
Denim pant is a significant prospect for the RMG sector of Bangladesh with an enormous future. The pricing is the most important factor obtainable in the global competitive market without having any suspicion. It is d... Denim pant is a significant prospect for the RMG sector of Bangladesh with an enormous future. The pricing is the most important factor obtainable in the global competitive market without having any suspicion. It is difficult to exist in the apparel market without providing lowest costing of garment. The study focuses on the entire factor that is directly related to the FOB cost of a basic denim pant where includes fabric cost, trims & accessories cost, storing, cost of making charge, washing cost, testing cost, commercial cost and profit is shown chronologically. All the calculations of the study were done on the basis of an industrial frame work and both primary and secondary data were collected from six different denim pant manufactures and exporters. The study provided convinced principle of fabric consumption, thread consumption, CM calculation, required poly;cartoons calculations and costing were done very carefully. The study also provides potential wash and testing, so that the total price ranges can be contained as well as demonstrating total FOB cost. The manufacturers, exporters, retailer and consumers of denim pant will get the apparent method of costing and its parameter. 展开更多
关键词 DENIM Jeanswear Costing CONSUMPTION MEASUREMENT
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Evolution and Prospect of Dakar Drinking Water Consumption 预览
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作者 Ndiouga Camara Ibrahima Mbaye +2 位作者 Baba Ngom Déthié Sarr Séni Tamba 《水资源与保护(英文)》 2019年第7期886-895,共10页
In Dakar, there has been a considerable deficit in the drinking water supply for more than a decade. The distribution is poorly controlled in this region. And yet, there is no lack of supply sources or solutions. With... In Dakar, there has been a considerable deficit in the drinking water supply for more than a decade. The distribution is poorly controlled in this region. And yet, there is no lack of supply sources or solutions. With a drinking water deficit of 300,000 m3/d to fill, the State of Senegal proposed two (02) options: firstly, the construction of a second Plan at Keur Momar Sarr on the Guiers Lake with a capacity of 75,000 m3/d coupled with a third pipeline between Keur Momar Sarr and Thiès (KMS3);secondly, the construction of a seawater desalination Plant with a capacity of 75,000 m3/d. In this article, we studied the evolution of the drinking water consumption and the statistical data relating to population growth, which is the key element in the drinking water consumption evolution in Dakar. We were able to extract the equations from the trend curves that made it possible to predict a population growth. The results obtained with the equations and the curves show that the real needs for drinking water in Dakar are proportional to population growth. 展开更多
关键词 DRINKING Water DAKAR EVOLUTION Perspective CONSUMPTION Needs
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Effect of Calcium Consumption on the Spasticity in the Spastic Rats 预览
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作者 Marina Indriasari   +3 位作者 Hardinsyah Lilik Kustiyah Bambang Pontjo Priosoeryanto Ferial Hadipoetro Idris 《食品与营养科学(英文)》 2019年第1期37-50,共14页
Spasticity is a stiff muscle condition because the muscles receive impulses continuously. Calcium ions play a role in the ability of nerves to stimulate muscle contraction. This study aimed to analyze the effect of ca... Spasticity is a stiff muscle condition because the muscles receive impulses continuously. Calcium ions play a role in the ability of nerves to stimulate muscle contraction. This study aimed to analyze the effect of calcium consumption on the changes of spasticity and the relation of calcium levels in the blood and muscle to the spasticity. The experimental study was conducted on 42 male Sprague-Dawley rats aged 12 - 14 weeks. The 15-d intervention was conducted on six groups of spastic rats by administering 20 g of feed containing 50 mg, 100 mg, and 200 mg of calcium, it also received 100 mg, 200 mg, and 300 mg of calcium lactate supplementation. The experimental rats were induced with 80 mg/kg BW of Erythrocin B through the tail vein to make them spastic. This study showed a tendency of increased spasticity along with the increased dose of calcium given to the subjects. There were significant differences (p = 0.007) in changes in spasticity between groups. The significant differences (p = 0.02) in changes in blood calcium levels. The Spearman’s correlations test on the changes in blood calcium levels and changes in spasticity showed a positive coefficient correlation (r = 0.097) with a p-value of 0.54. An increase in blood calcium levels and a large decrease in spasticity were found in the group receiving 100 mg calcium intake in 20 g of feed. The calcium levels in muscles had a significant correlation with spasticity (p = 0.038, r = 0.810). The calcium levels in the muscle had a strong correlation with blood calcium levels (p = 0.041, r = 0.748). The biggest decrease in spasticity occurred after 100 mg of calcium were given to the rats for 15 days, and it was considered as an optimal dose. The calcium levels in the muscles had a strong correlation with blood calcium levels and the spasticity of the spastic rats. 展开更多
关键词 CALCIUM CONSUMPTION SPASTICITY
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“消费驱动”下消费、投资与出口三大需求协调率分析 被引量:1
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作者 徐德云 赵强 《陕西师范大学学报:哲学社会科学版》 CSSCI 北大核心 2019年第3期85-92,共8页
十九大明确提出'经济增长要向依靠消费、投资、出口协调拉动转变',设定了消费、投资和出口协调拉动的发展目标。在消费驱动型发展模式基本确立的'十三五'开局之际,借鉴系统协调率模型,扩展建立了三大需求协调率模型,测... 十九大明确提出'经济增长要向依靠消费、投资、出口协调拉动转变',设定了消费、投资和出口协调拉动的发展目标。在消费驱动型发展模式基本确立的'十三五'开局之际,借鉴系统协调率模型,扩展建立了三大需求协调率模型,测算出2000—2017年中国三大需求的协调率为0. 647 9。同时,利用经验数据和Almon多项式分布滞后模型对我国三大需求协调率与经济增长率之间的关系进行了实证研究,结果表明:三大需求协调率对经济增长率即期影响并不显著,但长期存在显著的积极影响,且具有为期3年的明显滞后效应,之后作用力度逐年递减。长期坚持'消费、投资、出口协调拉动经济增长'方针,对收入分配、社会保障等相关政策进行适当微调是促进经济发展方式转变,实现经济自主协调、持续稳定增长的必然选择。 展开更多
关键词 经济增长 消费、投资和出口需求 消费、投资、出口协调率
新形势下增强我国消费对经济的拉动力研究——基于2018年湖南消费市场的问卷调查分析
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作者 尹向东 刘敏 +1 位作者 袁男优 徐华亮 《消费经济》 CSSCI 北大核心 2019年第5期89-96,共8页
在当前中美贸易摩擦日益加剧的形势下,大力增强国内消费对经济发展的拉动力,推动市场消费升级具有宏观战略意义。通过对湖南消费市场进行问卷调查分析,我们发现:消费新业态新模式给传统产业和企业带来了强大冲击,大力推进享受型发展型... 在当前中美贸易摩擦日益加剧的形势下,大力增强国内消费对经济发展的拉动力,推动市场消费升级具有宏观战略意义。通过对湖南消费市场进行问卷调查分析,我们发现:消费新业态新模式给传统产业和企业带来了强大冲击,大力推进享受型发展型消费需求满足是未来的重点,信息化、智能化、共享化、低碳化消费发展是大趋势。为此,要大力发展商贸流通业,提高流通业效率和效益;实施四大品质消费工程,促进服务和实物消费升级;加强软硬环境建设,提高消费者信心和意愿。 展开更多
关键词 消费 拉动力 湖南消费 问卷调查
消解当代大学生消费异化问题研究 预览
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作者 滕敏娟 《淮北职业技术学院学报》 2019年第5期72-75,共4页
消费是人类生存和发展的基本条件。消费活动在伴随人类活动不断发展的同时也出现了消费异化现象,这种消费异化现象同样存在于当代大学生群体中。营造科学的消费氛围,引导大学生理性消费,采取切实可行的措施避免大学生消费异化蔓延,就必... 消费是人类生存和发展的基本条件。消费活动在伴随人类活动不断发展的同时也出现了消费异化现象,这种消费异化现象同样存在于当代大学生群体中。营造科学的消费氛围,引导大学生理性消费,采取切实可行的措施避免大学生消费异化蔓延,就必须坚持马克思主义理论指导下的科学消费观,重视家庭消费教育的基础性作用,发挥高校消费教育的主导作用,规范网络媒体对消费的宣传和引导,增强大学生科学消费意识。 展开更多
关键词 大学生 消费 消费异化
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近年来中国棉花市场形势分析与展望 预览
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作者 李想 《农业展望》 2019年第2期78-83,共6页
2011年以来,中国先后实施棉花临时收储政策、目标价格补贴政策,期间又进行储备棉投放和进口配额调整,导致国内棉花生产、消费、库存、贸易和市场价格等方面均出现大幅波动。棉花市场的变化,也受宏观市场、自然条件、技术进步、区域调整... 2011年以来,中国先后实施棉花临时收储政策、目标价格补贴政策,期间又进行储备棉投放和进口配额调整,导致国内棉花生产、消费、库存、贸易和市场价格等方面均出现大幅波动。棉花市场的变化,也受宏观市场、自然条件、技术进步、区域调整等因素的影响。展望未来,中国棉花生产和消费均存在下滑的可能,产需缺口未来几年将持续存在,价格不稳定性加大。 展开更多
关键词 棉花市场 价格 产量 消费 进口 展望
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苏南小菜园式社区支持农业发展研究 预览
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作者 杨勇 金军 李海涛 《安徽农业科学》 CAS 2019年第11期253-254,257共3页
在追求生态安全农产品的消费中,社区支持农业是一种重要的形式,近年来在中国发展迅速。通过对江苏常州小菜园项目的调研,对其中的模式、机制进行了分析,从食物安全、消费传统、生态保护、资源利用、劳动就业、市场对接、乡村环境、农业... 在追求生态安全农产品的消费中,社区支持农业是一种重要的形式,近年来在中国发展迅速。通过对江苏常州小菜园项目的调研,对其中的模式、机制进行了分析,从食物安全、消费传统、生态保护、资源利用、劳动就业、市场对接、乡村环境、农业科普8个方面分析了这种小菜园式社区支持农业的发展优势,并就安全把控、营销模式、政府作用等方面提出了相关建议。 展开更多
关键词 社区支持农业(CSA) 菜园 消费 生态
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2018年我国磷复肥行业运行情况及发展趋势
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作者 王莹 方俊文 +1 位作者 王焕喜 李博 《磷肥与复肥》 CAS 2019年第6期1-8,共8页
阐述2018年我国磷复肥行业运行情况:磷肥产量连续3年呈下降走势,2018年同比降幅为0.9%;生产向资源地集中的趋势更加明显,云贵川鄂产磷4省磷肥产量占全国总产量的81.0%;行业集中度继续提升,大型优势企业规模不断扩大,产量向创新能力强、... 阐述2018年我国磷复肥行业运行情况:磷肥产量连续3年呈下降走势,2018年同比降幅为0.9%;生产向资源地集中的趋势更加明显,云贵川鄂产磷4省磷肥产量占全国总产量的81.0%;行业集中度继续提升,大型优势企业规模不断扩大,产量向创新能力强、产品质量好、管理水平高、品牌优势明显的企业集中,前10名磷肥企业总产量占磷肥总产量63.3%;进出口双双增长,净出口增幅达到10.0%;原料成本支撑市场保持高位运行,磷铵行业景气度持续回升,复合肥市场表现差强人意;磷矿石资源属性日益凸显,行业整合叠加生态保护,磷矿石价格居高不下,拉动磷产业链持续整合,行业盈利能力增加,2018年磷复肥行业主营业务利润率同比提升0.3个百分点。分析2019年磷复肥行业发展趋势。 展开更多
关键词 2018年 磷肥 复合肥 硫黄 生产 消费 趋势
长期停滞还是金融周期——中国宏观经济形势分析与展望
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作者 汤铎铎 刘磊 张莹 《经济学动态》 CSSCI 北大核心 2019年第10期50-63,共14页
中国经济和全球经济面临的问题相似。“长期停滞说”和“金融周期说”既相互竞争,也相互补充,从不同角度提出了解决问题的方案。从结构性总需求不足的视角看,零利率下限要求财政政策充分承担责任,甚至可以通过债务货币化。从金融周期的... 中国经济和全球经济面临的问题相似。“长期停滞说”和“金融周期说”既相互竞争,也相互补充,从不同角度提出了解决问题的方案。从结构性总需求不足的视角看,零利率下限要求财政政策充分承担责任,甚至可以通过债务货币化。从金融周期的视角看,决策者要特别警惕信贷扩张和资产价格上涨,以避免掉入债务陷阱。从我国各部门的具体情况看,既有长期停滞因素抑制总需求,也有金融周期影响的逐步扩大。短期看,由于全球经济面临巨大的不确定性,我国宏观经济政策应该以静制动,保持定力。在坚持金融去杠杆的大方针下,适时适度推出措施稳增长。同时,要有意识预留政策空间以应对未来可能发生的剧烈变化。 展开更多
关键词 长期停滞 金融周期 消费 地方政府债务 中美贸易摩擦
PAM: an efficient power-aware multilevel cache policy to reduce energy consumption of storage systems
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作者 Xiaodong MENG Chentao WU +2 位作者 Minyi GUO Long ZHENG Jingyu ZHANG 《中国计算机科学前沿:英文版》 SCIE EI CSCD 2019年第4期850-863,共14页
Energy consumption is one of the most significant aspects of large-scale storage systems where multilevel caches are widely used. In a typical hierarchical storage structure, upper-level storage serves as a cache for ... Energy consumption is one of the most significant aspects of large-scale storage systems where multilevel caches are widely used. In a typical hierarchical storage structure, upper-level storage serves as a cache for the lower level, forming a distributed multilevel cache system. In the past two decades, several classic LRU-based multilevel cache policies have been proposed to improve the overall I/O performance of storage systems. However, few power-aware multilevel cache policies focus on the storage devices in the bottom level, which consume more than 27% of the energy of the whole system [1]. To address this problem, we propose a novel power-aware multilevel cache (PAM) policy that can reduce the energy consumption of high-performance and I/O bandwidth storage devices. In our PAM policy, an appropriate number of cold dirty blocks in the upper level cache are identified and selected to flush directly to the storage devices, providing high probability extension of the lifetime of disks in standby mode. To demonstrate the effectiveness of our proposed policy, we conduct several simulations with real-world traces. Compared to existing popular cache schemes such as PA? LRU, PB-LRU, and Demote, PAM reduces power consumption by up to 15% under different I/O workloads, and improves energy efficiency by up to 50.5%. 展开更多
关键词 storage system MULTILEVEL CACHE energy consumption I/O performance HINT
重庆文化消费现状及其发展路径研究——基于重庆文化产业博览会的调查 预览
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作者 刘容 《重庆三峡学院学报》 2019年第1期115-121,共7页
理清重庆文化消费现状、特点及趋势,对提振重庆文化消费、促进文化产业发展有重要的意义。通过重庆市民文化消费问卷调查,揭示当前影响重庆文化消费的基本情况和特征、市民对当前文化消费的满意程度,探讨促进重庆文化消费增长的路径。
关键词 重庆 文化产业 消费 发展路径
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Current Situation and Prospects of the Development of China's Natural Gas Industry 预览
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作者 Gao Jie Zhao Zhongde +1 位作者 Zuo Yumei Liu Dingzhi 《中国油气:英文版》 CAS 2019年第3期35-42,共8页
In 2018,China's natural gas market reached a new level of development,with apparent consumption of 280.3 billion m3,up by 18.1%over the same period in the previous year.Domestic production grew steadily,reaching 1... In 2018,China's natural gas market reached a new level of development,with apparent consumption of 280.3 billion m3,up by 18.1%over the same period in the previous year.Domestic production grew steadily,reaching 157 billion m3,up by 7.2%over the same period in the previous year.Natural gas imports grew rapidly,with imports of pipeline gas and LNG totalling 124.2 billion m3.In terms of trade types,imports of LNG continue to exceed those of pipeline gas.In 2019,there has been downward pressure on the macro economy,and the development of the main gas sector has slowed down.Driven by environmental protection policies,the natural gas market continues to maintain rapid growth.However,it is difficult for the levels of increment and growth to reach those of the previous two years,and the growth rate of market demand is predicted to reach 10.7%. 展开更多
关键词 China NATURAL GAS OUTPUT CONSUMPTION PRICE Coal-intogas Urban GAS NATURAL GAS power generation Industry
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安化县旱杂粮生产发展与产业化开发分析 预览
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作者 刘国平 《粮食科技与经济》 2019年第1期24-25,50共3页
本文以旱杂粮生产发展为核心,分析湖南省益阳市安化县旱杂粮生产发展的优劣势,提出科学有效的发展措施,构建产业化发展体系,发挥地区特色和各项资源优势,进而促进旱杂粮产业的持续性健康发展,为相关研究人员提供一定的借鉴和帮助。
关键词 旱杂粮 生产发展 产业化 消费量
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The effect of hydrogel particle size on water retention properties and availability under water stress 预览
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作者 Ahmad M.Abdallah 《国际水土保持研究(英文)》 SCIE 2019年第3期275-285,共11页
The use of superabsorbent polymers or hydrogels could increase the water holding capacity (WHC) of sandy soil and reduce water loss by deep percolation.However,hydrogels' retained water availability to plants migh... The use of superabsorbent polymers or hydrogels could increase the water holding capacity (WHC) of sandy soil and reduce water loss by deep percolation.However,hydrogels' retained water availability to plants might be overestimated without taking into consideration the hydrogel particles size.Therefore,the ultimate objective of this study was to address the impacts of hydrogel particles size on hydrogel's retained water availability (plant available water,PAW),daily water consumption (DWC) and survival of Guava seedlings subjected to drought.Moreover,some soil physical properties,i.e.,WHC,water retention properties,and hydraulic conductivity (Ksat) were investigated.Hydrogel (WaterSorb,'WS') application,particularly the WS of small particles,significantly reduced Ksat,and increased WHC and PAW.Therefore,seedlings grown in soil amended with WS fine (0.8-1.0 mm),WS medium (1.0-2.0 mm) and WS large (2-4 mm) survived for 27.0 ± 1.3,24.0 ± 1.1 and 17.0 ± 0.7 days,respectively,compared to 13.0 ± 1.0 days for the control.The water stored in the WS of large particles was less readily available for plant roots.Interestingly,hydrogels,had no effect on the DWC of the seedlings.Utilizing hydrogels as a soil amendment increases WHC PAW,growth and survival of Guava seedlings,while the effect was less pronounced for the large hydrogel particles which had lower specific surface area and swelling rate. 展开更多
关键词 WATER HOLDING capacity SWELLING rate WATER consumption Available WATER capacity SEEDLINGS survival
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Dairy Consumption and Associations with Nutritional Status of Chinese Children and Adolescents 预览
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作者 XU Pei Pei YANG Ti Ti +7 位作者 XU Juan LI Li CAO Wei GAN Qian HU Xiao Qi PAN Hui ZHAO Wen Hua ZHANG Qian 《生物医学与环境科学:英文版》 SCIE CAS CSCD 2019年第6期393-405,共13页
Objective This study aimed to describe frequency and quantity of total dairy consumption of Chinese children and adolescents and explore the associations between dairy consumption and nutrition status, including stunt... Objective This study aimed to describe frequency and quantity of total dairy consumption of Chinese children and adolescents and explore the associations between dairy consumption and nutrition status, including stunting, wasting, overweight, and obesity. Methods Participants included 28,250 children and adolescents aged 6-17 years old. A food frequency questionnaire(FFQ) including 100 kinds of food was used to collect information about frequency and quantity of dairy consumption. Determination of stunting was with a height cutoff value for age and gender, and determination for wasting, overweight, and obesity was with BMI for age and gender. Results Of the total sample, 36.1% of children aged 6-17 reported consuming dairy food more than once per day(≥ 1/day). The average total dairy intake of all the participants was 126.7 g/day. For boys, dairy consumption had an inverse correlation with stunting and wasting after controlling for confounders. For girls, dairy consumption was negatively associated with stunting and obesity after controlling for confounders as above. Conclusion Dairy consumption in Chinese children and adolescents was relatively lower than that in developed countries, and was negatively associated with stunting and wasting for boys and with stunting and obesity for girls. 展开更多
关键词 DAIRY CONSUMPTION CHILDREN and adolescents NUTRITION STATUS ASSOCIATION China
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