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China E-commerce market Analysis: Forecasting and Profiling Internet User

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China E-commerce Market Analysis: Forecasting and Profiling ...

2011 IEEE International Summer Conference of Asia Pacific business Innovation and Technology management(APBITm 2011)

作者： Liem gai Sin m.bus Ria Purnamasari Department of Economic and business ma Chung University Malang East Java Indonesia

E-commerce has been increasing rapidly and will obviously be more popular in the future. The growth of internet is believed to have given an impact on e-commerce’s growth in China because approximately thirty percent of Chinese alter to be active internet users. The trend is pointed out to the increase of e- commerce transaction value. This research aims to provide an insight to the Chinese e-commerce market by performing a forecast of internet users. Age, gender, and income, as part of demographic profiles, are selected since they are considered to positively influence the internet user’s online activity. Furthermore, this research also provides an analysis of guidelines for companies that want to enter the China e-commerce market. For the purpose of this research, time series analysis using ARImA model will be used as the research method. Overall, findings assert Chinese internet users seem to grow rapidly. male users are still predicted to the dominate market although, surprisingly, the result shows that male internet users are to go down gradually by 2015. In addition, the result shows that internet users who have high income are increasing. Therefore, it is indicated that luxury products become potential products to be marketed. Considering the overall phenomenon, it is likely that China will still continue to be a prospective e-commerce market in the future.

关键词： Forecasting Profiling E-Commerce Demographic Profile ARImA

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走廊办公室

城市建筑 2018年第25期15卷 110-113页

作者： bus bus事务所设计与实践

项目名称:走廊办公室业主:platease株式会社建设地点:徳岛县名西郡神山町设计单位:bus合作设计:NAWAKENJIm公司,和田建材用地面积:1 113 m^2建筑面积:主屋114.2 m^2,仓库39.3 m^2,屋21.7 m^2结构形式:木构建筑层数:2项目负责人:坂东幸... 详细信息

项目名称:走廊办公室业主:platease株式会社建设地点:徳岛县名西郡神山町设计单位:bus合作设计:NAWAKENJIm公司,和田建材用地面积:1 113 m^2建筑面积:主屋114.2 m^2,仓库39.3 m^2,屋21.7 m^2结构形式:木构建筑层数:2项目负责人:坂东幸辅建筑设计:坂东幸辅,须磨一清,伊藤晓三结构设计.

关键词：公众参与研讨会当地居民外观图

Assessment of SARS-CoV-2 airborne infection transmission risk in public buses

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geoscience Frontiers 2022年第6期13卷 224-235页

作者： m.Bertone A.mikszewski L.Stabile g.Riccio g.Cortellessa F.R.d'Ambrosio V.Papa L.morawska g.Buonanno Department of Civil and mechanical Engineering University of Cassino and Southern LazioCassinoFRItaly CIUS Building Performance Lab The City University of New YorkNew YorkNYUSA International Laboratory for Air Quality and Health Queensland University of TechnologyBrisbaneQueenslandAustralia Department of Industrial Engineering University of Naples“Federico II”Italy Department of Industrial Engineering University of SalernoItaly Department of motor Sciences and Wellness University of Naples“Parthenope”Italy

Public transport environments are thought to play a key role in the spread of SARS-CoV-2 ***,high crowding indexes(*** numbers of people relative to the vehicle size),inadequate clean air supply,and frequent extended exposure durations make transport environments potential hotspots for transmission of respiratory *** the COVID-19 pandemic,generic mitigation measures(*** distancing)have been applied without also considering the airborne transmission *** is due to the lack of quantified data about airborne contagion risk in transport *** this study,we apply a novel combination of close proximity and room-scale risk assessment approaches for people sharing public transport environments to predict their contagion risk due to SARS-CoV-2 respiratory *** particular,the individual infection risk of susceptible subjects and the transmissibility of SARS-CoV-2(expressed through the reproduction number)are evaluated for two types of buses,differing in terms of exposure time and crowding index:urban and long-distance *** risk and reproduction number are calculated for different scenarios as a function of the ventilation rates(both measured and estimated according to standards),crowding indexes,and travel *** results show that for urban buses,the close proximity contribution significantly affects the maximum occupancy to maintain a reproductive number ofbus would be permitted only for an infected subject breathing,whereas for an infected subject speaking,masking would be *** long-distance buses,full occupancy of the bus can be maintained only if specific mitigation solutions are simultaneously *** example,for an infected person speaking for 1 h,appropriate filtration of the recirculated air and simultaneous use of FFP2 masks would permit full occupancy of the bus for a period of almost 8 ***,a high percentage of immunized persons(>

关键词： SARS-CoV-2 Airborne transmission bus Transport microenvironment maximum occupancy Air exchange rate

A Novel Single Switch High gain DC-DC Converter Topology for Renewable Energy Systems

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Energy Engineering 2021年第2期118卷 199-209页

作者： g.Indira Kishore m.Premkumar Ramesh Kumar Tripathi Chandra Sekhar Nalamati gmR Institute of Technology RajamSrikakulamAndhra Pradesh532127India motilal Nehru National Institute of Technology AllahabadUttar Pradesh211004India

Renewable energy with sources such as photovoltaic(PV)or fuel cells can be utilized for the generation of elec-trical *** these sources generate fewer voltage values and therefore require high gain converters to match with DC bus voltage in *** high gain converters can be implemented with switched capacitors to meet the required DC bus *** capacitors operate in a series and parallel combination during switch-ing operation and produce high static gain,limits reverse voltage that appears across the components.A novel converter is proposed that satisfies all the features such as high voltage gain,only one switch,forces less potential stress cross the components,ripple current is *** features of the proposed converter are verified through mATLAB/SImULINK.

关键词： DC-DC converter high gain renewable energy switched capacitors

Optimal redundant placement of PmUs in Indian power grid -- northern, eastern and north-eastern regions

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Frontiers in Energy 2013年第4期7卷 413-428页

作者： Pathirikkat gOPAKUmAR g. Surya CHANDRA m. Jaya Bharata REDDY Dusmata Kumar mOHANTA Department of Electrical and Electronics Engineering National Institute of Technology Timchirappalli 620015 India Department of Electrical and Electronics Engineering Birla Institute of Technology Ranchi 835215 India

Effective utilization of renewable energy sources and efficient management of electric energy are essential for any developing countries like India. This can be envisioned through the implementation of concepts of smart grid （Sg）. One of the key requisites for Sg implementation is that the grid should be completely observable. Renovation of conventional Indian power grid to a Sg necessitates incorporation of the phasor measure- ment units （PmUs） in the present power grid measurement and monitoring system. Since the cost of PmU is high and any bus containing a PmU makes the neighboring connected buses observable, optimal placement of PmUs is very important for complete observability of the grid. This paper proposes optimal redundant geographical locations in the northern, eastern and north-eastern regions of Indian power grid for PmU placement. The PmUs installed in these geographical locations will make the grid completely observable and maintain the observability under the conditions of failure of some PmUs or branch outages. Integer linear programming has been used for finding the optimal PmU locations. The results proposed in this paper can be a stepping stone for revamping the Indian power grid to a Sg ensuring complete observability during different contingency conditions.

关键词： phasor measurement unit (PmU) smart grid (Sg) Indian power grid northern region Indian power grid (NRIPg) eastern region Indian power grid (ERIPg) north- eastern region Indian power grid (NERIPg) redundancy integer linear programing (ILP)

Optimal placement of PmUs for the smart grid implementation in Indian power grid A case study

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Frontiers in Energy 2013年第3期7卷 358-372页

作者： Pathirikkat gOPAKUmAR g. Surya CHANDRA m. Jaya Bharata REDDY Dusmata Kumar mOHANTA Department of Electrical and Electronics Engineering National Instituteof Technology Timchirappalli 620015 Tamil Nadu India Department of Electrical and Electronics Engineering Birla Institute of Technology Mesra 835215 Ranchi India

Efficient utilization of energy resources is essential for a developing country like India. The concept of smart grid （Sg） can provide a highly reliable power system with optimized utilization of available resources. The present Indian power grid requires revolutionary changes to meet the growing demands and to make the grid smarter and reliable. One of the important requirements for Sg is the instantaneous monitoring of the voltage, current and power flows at all buses in the grid. The traditional monitoring system cannot satisfy this requirement since they are based on nonlinear power flow equations. Synchro-phasor-measurement devices like phasor mea- surement units （PmUs） can measure the phasor values of voltages at installed buses. Consequently, the currents passing through all branches connected to that bus can be computed. Since the voltage phasor values at the neighboring buses of a bus containing the PmU can be estimated using Ohm＇s law, it is redundant to install PmUs at all the buses in a power grid for its complete observability. This paper proposes the optimal geographi- cal locations for the PmUs in southern region Indian power grid for the implementation of Sg, using Integer Linear Programming. The proposed optimal geographical locations for PmU placement can be a stepping stone for the implementation of Sg in India.

关键词： phasor measurement units (PmUs) smart grid (Sg) southern region Indian power grid (SRIPg) integer linear programming (ILP)

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新西兰苹果生产现状和新品种简介

中国果树 2019年第3期 113-116,119页

作者：王大江 bus vincent g m 王昆 Dayatilake g A 高源刘立军李连文朴继成中国农业科学院果树研究所农业部园艺作物种质资源利用重点实验室辽宁兴城125100 新西兰植物与食品研究所

综述新西兰苹果产业现状,简介新西兰苹果新品种特性,以期为我国苹果产业发展提供参考。2017年,新西兰苹果栽培面积9 535 hm^2,主栽地区为豪克斯湾(Hawke’s Bay),占全国栽培面积的60%以上;主栽品种有‘皇家嘎拉’‘布瑞本’‘太平洋皇... 详细信息

综述新西兰苹果产业现状,简介新西兰苹果新品种特性,以期为我国苹果产业发展提供参考。2017年,新西兰苹果栽培面积9 535 hm^2,主栽地区为豪克斯湾(Hawke’s Bay),占全国栽培面积的60%以上;主栽品种有‘皇家嘎拉’‘布瑞本’‘太平洋皇后’‘富士’‘爵士’‘粉红女士’和‘艾娃’等,其中‘皇家嘎拉’栽培面积最大,约2 604 hm^2,近几年栽培面积增长较快的品种主要为‘火箭’‘艾娃’和‘爵士’;单位面积产量约为62.0 t/hm^2;苹果出口量为34.3万t,出口额约7亿新元;生产模式主要为综合水果生产(IFP)和有机生产2种,前者约占93%;主要的苹果生产企业为mr. Apple、Yummy、Bostock和T&g,mr. Apple出口约25%份额的主栽品种,Yummy主要销售到国内市场,Bostock为最大的有机苹果生产企业,T&g主要生产‘爵士’‘艾娃’和‘太平洋玫瑰’。可见,新西兰苹果品种结构丰富、单产高、出口比例大,具有标准化的栽培模式和战略布局,为苹果产业可持续发展的重要部分,可以作为我国苹果产业发展的参考。

关键词：新西兰苹果产业现状生产模式新品种

Voltage imbalance mitigation in an active distribution network using decentralized current control

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Protection and Control of modern Power Systems 2023年第2期8卷 68-84页

作者： Ahmed m.m.Nour Ahmed A.Helal magdi m.El-Saadawi Ahmed Y.Hatata Alexandria Higher Institute of Engineering and Technology(AIET) AlexandriaEgypt Department of Electrical and Control Engineering Arab Academy for Science and Technology and Maritime TransportAlexandriaEgypt Department of Electrical Engineering Faculty of EngineeringMansoura UniversityMansouraEgypt Department of Electrical Engineering College of EngineeringShaqra UniversityShaqraKingdom of Saudi Arabia

Voltage imbalance(VI)is caused by the difference in connected single-phase load or generation in a low voltage distribution network(DN).VI increase in a smart distribution grid is due to the current practice of increasing single-phase distributed generators such as photovoltaic(PV)*** paper proposes a decentralized control method to mitigate VI using distributed batteries included in smart grid interfaced residential PV *** mitigate VI using the batteries in this way,five challenges must be overcome,i.e.,equalizing all battery stress currents within the DN,mitigating VI in abnormal conditions such as signal loss among bus controllers,being immune from the distorted feedback measurements,minimizing the steady-state error at different loads,and overcoming the insufficient number or capacity of the distributed batteries at the same *** fuzzy logic controllers(FLC)are proposed at each bus to overcome these five tasks based on a decentralized control *** proposed decentralized control based on FLC is compared with centralized control based on a PI *** proposed control method is tested and verified using simulations in the mATLAB/Simulink software,and the results validate the ability of the scheme to alleviate VI on a smart distribution network under both normal and abnormal conditions.

关键词： Fuzzy controller Distributed batteries Decentralized control Voltage imbalance Distributed PV

双能CT定量评估糖尿病足溃疡和可疑骨髓炎病人骨髓水肿的初步研究

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国际医学放射学杂志 2023年第5期 626-626页

作者： m.A.mens A.geus R.H.H.Wellenberg g.J.Streekstra N.L.Weil S.A.bus 张雅欣

摘要目的评估双能CT(DECT)虚拟去钙（VNCa）对于定量评估糖尿病足溃疡和可疑骨髓炎病人骨髓水肿（BmE）的价值。方法回顾性纳入DECT(80 k V/Sn150 k V)VNCa检

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