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329 articles
Proceedings Article

The Smart Combination of a Novel MicroCHP, PVs and Various Energy Storage Possibilities to Provide the Household Energy Needs All year Round

Joseph Cilia, Andrea Brincat, Carmel Ellul, James Attard, Neville Azzopardi, Matthew Schembri, Redeemer Axisa, Markus Thiry, David Cilia
The problem of seasonal energy storage, where excess renewable energy in the summer months is stored to cater for the winter season, is an active topic being researched [1, 2]. The solution being proposed in this paper targets residential homes, and is the result of the development of a microCHP with...
Proceedings Article

Effects of hydropower construction on spatial-temporal change of land use and landscape pattern A Case Study of Jinghong,Yunnan, China

Shiyi Jiang, Heping Zeng, Minxia Cao, Zhantai Wang, Huiqun Huang
Selecting Jinghong hydropower station as a study case, we studied the spatial-temporal change of land use and landscape pattern during 2004,2009 and 2013 based on the application of RS interpretation , ArcGIS 10.1 analysis and Fragstats3.4. The results showed that: 1) Area of tea garden, traffic land,...

Prediction Farmer Exchange Rate Comparative Method of Analysis Holth-Winters Smoothing and Seasonal ARIMA

Harizahayu, Amin Harahap, Muhammad Fathoni, Hari Sumardi
The purpose of this research was to predict seasonal time series data using the Holt-Winters exponential smoothing additive model and the Seasonal autoregressive integrated moving average (ARIMA). The data used in this study is data on farmer term of trade at Nort Sumatera in 2016–2020, the source of...

The Analysis of Price Fluctuation Cycle of Rare Earth Neodymium Oxide and Dysprosium Oxide

Binqing Yang, Xianping Zhang, Pengwei Xu
The prices of rare earth products in China fluctuate periodically. In order to figure out the fluctuations rule, this paper chooses the monthly prices data of rare earths neodymium oxide and dysprosium oxide as samples from February in 2006 to December in 2017, uses the X12 seasonal adjust method and...
Proceedings Article

CSA & Snap: Business Opportunity For Farmers, Improved Nutrition For The Community

Diane K. Smith, Katherine Selting Smith
Community Supported Agriculture (CSA) has become a popular alternative available to shoppers looking for local, seasonal produce at a fair price. The numbers of farms offering a CSA has increased in recent years, from an estimated 60 farms in 1990 to over 7,000 today. From the farmers’ perspective, the...
Proceedings Article

Seasonal Adjustment Algorithm

Kirill Spiridonov
The paper presents an algorithm for smoothing time series with seasonality. The proposed method is based on median smoothing and the Hodrick–Prescott decomposition. Using a software implementation in the R language, the correctness of the developed algorithm is checked; it is also compared with other...
Proceedings Article

Power Quality in Smart Distribution Systems with Electric Battery, Large Loads and PV Generation.

Miguel Muñoz Ortiz, Idar Petersen, Ralf Mikut, Henrik Landsverk, Stig Harald Simonsen
A change in the electricity consumption is taking place, where one of the main reasons is the large increase in Distributed Generation, as photovoltaic (PV) systems and electric batteries in the low voltage (LV) distribution grid. This could translate in specific cases into a situation of increased peak...

Testing the Monday Effect in the Banking Sector in Indonesia Stock Exchange

Agus Arman, Dwi Ayu Lestari
Calendar anomalies are one of the market anomalies that disrupt the efficient market hypothesis. Based on studies of calendar anomalies carried out in several capital markets in the world prove the existence of irregularities in seasonal return (day of the week effect) and monthly (month of the year...
Proceedings Article

A Constitutive Model for Damage of Highway Subgrade Soil under the Coupling of Freeze-Thaw Cycles and Loads

Jiawei Wang, Xiaojian Ren
To investigate the influence of freeze-thaw cycles and loading on the mechanical characteristics of highway subgrades, a damage constitutive model under the coupled effect of freeze-thaw cycles and loading was constructed by integrating the Weibull distribution with Lemaitre’s effective stress principle,...
Proceedings Article

Contribution Title Monthly Cumulative Periodic Modeling of Rainfall Using TRMM and CHIRPS Rainfall Data

A. Ashruri, S. Tugiono, A. Zakaria, A. D. Putra, D. Mardhatila, E. S. Adha
For engineering planning, especially water structures such as irrigation, dams, urban drainage, ports, docks, etc., rainfall data is very important. Rainfall has a periodic nature, because it is affected by climates such as wind, temperature, humidity and so on. These parameters are transferred into...

A Study on Risk Evaluation of Revenue Forecasting Accuracy in Tax Administration in Malawi; A Time Series Approach

Binauli Nanthuru Stella, Guihua Nie
Nobody can accurately predict amount of sales revenue expected. There is need for accuracy to eliminate risk of revenue loss. Surveys have shown that accuracy is the most important criterion in selecting a forecasting strategy. Which criterion then provides the most accurate forecast? Human judgment...

Sumatra Land Surface Temperature Increase

M Munawar, T A E Prasetya, R McNeil, R Jani
Climate change in Sumatra island is likely a result of widespread land-use changes by the plantation industry. This study aims to investigate trends in land surface temperatures in Sumatra island. Land surface temperatures from 2001-2020 were downloaded from the National Aeronautics and Space Administration...
Proceedings Article

Techno-Economic Planning and Exergy Analysis of Large-Scale Hot-Water Tank and Pits

Abdulrahman Dahash, Fabian Ochs, Alice Tosatto
Large-scale seasonal thermal energy storage (STES) substantially facilitates a full exploitation of the local renewable energy sources (e.g. geothermal, solar, waste heat) potential in renewables-based district heating systems in order to mitigate CO2 emissions and the climate change. Large-scale seasonal...
Proceedings Article

Effect Of The Monsoon to Sea Surface Temperature In The Java Sea

Yosafat Haryanto, Rezfiko Agdialta, Agus Hartoko, Sutrisno Anggoro, Muhammad Zainuri
Monsoon is the seasonal wind blowing through continents Australia and Asia. Monsoon is one of the main element which influences the weather and climate in some Indonesia areas. Sea Surface Temperature is the water temperature close to the ocean’s surface. Sea Surface Temperature is directly influenced...

Report on Labour in Human Resources Management System

Liudmyla Lovinska, Yevheniia Kaliuha, Iryna Kryshtopa, Liliia Korytnik, Anna Umerova
Statistical reporting is a source of information support, comprehensive assessment, monitoring of social and labour activity for operational and strategic management of an enterprise, region, industry, state for obtaining reliable and complete information on organization, use of labour, social and labour...
Proceedings Article

A Combination Predicting Method Based on Innovation GM(1,1) and RBF

Xuhua Wang, Tianshe Yang, Mingyang LI, Jianwei Wang, Jing Zhao
Proposed a combination predicting method based on innovation grey theory and neural network to improve the precision of spacecraft power predicting. Established innovation GM(1,1)+RBF combination predicting model with optimal predicting precision according to the spacecraft power seasonal fluctuating....
Proceedings Article

Situation Management of Agricultural Production Based on the Prediction of Prices for Agricultural Products

Marina Polkovskaya
There were analyzed the main global and Russian trends of agricultural prices in this article. According to the mathematical model “Cassandra”, were allocated a trend, a seasonal component and a remainder term of a series of average monthly prices for various agricultural products in the Irkutsk region...

Influence of Thermal Insulation on Temperature Mode of Multiple-Frozen Grounds Based on Main Gas Pipeline

А.V. Stepanov, V.М. Efimov, I.I. Rozhin, F.Е. Popenko, А.А. Stepanov
The paper examines the process of heat exchange of soil mass with a gas pipeline and mathematical modeling. It involves seasonal changes in heat exchange conditions on the surface as well as cyclical changes in the temperature of the transported gas. The mathematical formulation for dynamics of two-dimensional...

What is the Most Effective Method for Weed Control?

Ke Tang
We develop a spatially explicit cellular automaton model to evaluate long-term crop–weed dynamics on a 100-ha grid under four strategies: no control, chemical suppression (reduced weed growth), enhanced crop competitiveness (higher carrying capacity and stronger suppression), and threshold-based mechanical...
Proceedings Article

Study on the Design of Greenhouse Monitoring System based on Zigbee Wireless Communication Technology

Jie Huang
With intelligent greenhouse computer, network, electronic, automatic control, and other high-tech means to achieve automatic detection and control of plant growth small environment temperature, humidity, light, soil moisture, ventilation and other environmental parameters, breaking the traditional agricultural...
Proceedings Article

Physicochemical Comparison of Heavy Metal Sediments at Different Seasons in Sungai Jarum Mas, Matang Mangrove Forest, Perak

Nor Haslinda Sulaiman, Haidar Fari Aditya, Seca Gandaseca, S. Nurhidayu, Ramadhani Mahendra Kusuma
Forests of mangroves are one of the most common wetland types in Peninsular Malaysia and play an important role in our ecosystem. Mangrove forests are highly productive ecosystems that offer a diverse variety of goods and services to the coastal environment as well as to people and other animals. All...

Assessment of Seasonal Variation of Water Quality in Bhubaneswar Urban Catchment Using Water Quality Index Method

Kshyana Prava Samal, Asish Kumar Pradhan, Ashok Tarai
The scientific community is very concerned about groundwater contamination since it directly affects human health and also to achieve SDG6. Since fast pace of urbanization have been ascertained in Bhubaneswar- a smart city of eastern India and mostly dependent on ground water so the quality of ground...
Proceedings Article

Temporal and Spatial Distribution of Arsenic Speciation in Sediments of Plateau Lakeside Wetland and Their Relations to Environmental Factors

Yungen Liu, Mengying Li, Xiaojun Xu, Lei Hou, Yan Wang, Danhui Qi, Rong Zhao, Wei Ren
This paper chose the surface sediments of lakeside wetland from southern Yangzonghai as the research object, studied the sediment contents of total arsenic (TAs) and arsenic fractions (acid soluble arsenic-F1, reducible arsenic-F2, oxidable arsenic-F3 and residual arsenic-F4) of different seasons and...

Multi-Scale Climate Change and Its Influencing Factors in Northern Shaanxi during 1960–2020

Si Wen Xue, Zhou Qi
Pages: 75 - 85
Based on the observed data of precipitation and air temperature in Northern Shaanxi during 1960–2020, the characteristics of precipitation and air temperature at multiple time scales in Northern Shaanxi were analyzed by using CEEMDAN (Adaptive Complete Set Empirical Model) and back propagation neural...
Proceedings Article

Ecological Stabilization: The Bedrock for Agricultural Renewal

Jiawei Wang, Boyi Zhang, Jinghao Zhao
Balancing agricultural productivity with ecological health remains a major global challenge amid surging food demand and ecosystem pressures. This study developed the Dynamic Farmland Food Web (DFFW) model, adapting the Lotka-Volterra framework to simulate crop-pest-predator interactions, integrating...
Proceedings Article

Spatial Distribution of Uranium Water Quality on Seasonal Basis around Proposed Nuclear Power Plant (NPP) Site at Kovvada, Srikakulam District, Andhra Pradesh, India

D. Ramarao, M. Yugandhar, G. V. Subba Reddy, S. K. Sahoo, A. Vinod Kumar, P. V. S. Machiraju, V. Christopher
Uranium is the basic nuclear fuel of the present nuclear power programme. Nuclear Power Corporation of India Limited (NPCIL), it is proposed for establishment of Nuclear Power Plant (NPP) at Kovvada, Ranasthalam Mandal of Srikakulam District of Andhra Pradesh, India. The Base line study carried out for...

A Sales Forecasting Model for the Consumer Goods with Holiday Effects

Mu Zhang, Xiao-nan Huang, Chang-bing Yang
Pages: 69 - 76
In reality, there are so-called holiday effects in the sales of many consumer goods, and their sales data have the characteristics of double trend change of time series. In view of this, by introducing the seasonal decomposition and ARIMA model, this paper proposes a sales forecasting model for the consumer...

Vertical Profile of Water and Sediment in Lake Oigon

Byambadulam Enkhee, Buyan Chuluun, Bayanmunkh Baatar, Shurkhuu Nyamdorj, Sen-Lin Tang, Bolormaa Oyuntsetseg
Determining vertical variation of water quality parameters is contributed to a better understanding of the true nature of lakes. Lakes are classified into holomictic and meromictic lakes by their mixing mode; the former occurs physico-chemical mixing between the surface and deep waters, while the latter...
Proceedings Article

Investigation of Diurnal and Seasonal variation of Radio Refractivity and Field Strength over Ogbomoso, South Western Nigeria

K. O. Suleman, A. S. Olawuyi, O. Joseph, O. L. Ogunmola, G. A. Alagbe, S. O. Azeez, S. B. Suleiman, A. L. Adegbaye, K. Ahmed, L. A. Sunmonu
This study examined diurnal and seasonal variability in secondary weather parameters- refractivity, refractivity gradient, k-factor, and field strength- over Ogbomoso, Nigeria. Results showed significant diurnal variations, with maximum refractivity of 375 N-units and k-factor of 1.48 in the early hours,...
Proceedings Article

Current Problems of Radiation-Ecological Monitoring in Penza Region

М.К. Sayfetdinova, S.V. Tertychnaya, N.А. Vinogradova, O.E. Bezborodova, A.Yu. Kazakov, V.S. Kurakin
The paper presents the measurement results of construction and finishing materials, agricultural products (honey) on the content of radionuclides in Penza and Penza Region. The obtained dependences allow confirming the dependences between a radon exhalation, type of construction and finishing materials....
Proceedings Article

Forecasting the Number of New Cases of COVID-19 in Indonesia Using the ARIMA and SARIMA Prediction Models

Hedi, Anny Suryani, Agus Binarto
In June 2020, the Indonesian Government announced to implement a new normal policy as a result of the increasing number of new cases of coronavirus disease (COVID-19) every day, but many new cases until August 2021 were still above June 2020. To control the spread of this pandemic, the Government implements...

Analysis of the Effect of Cayenne Pepper Prices in East Java

Laily Rahmawati, Amelia Choya Tia Rosalia, Yozi Aulia Rahman, Phany Ineke Putri
The erratic and often fluctuating price of cayenne pepper has caused many people to complain about the situation. Especially if the price increases significantly. This is because cayenne pepper is a basic necessity and cannot be separated from every Indonesian seasoning. Price changes that occur in cayenne...
Proceedings Article

Ecologobiological Feature of Blood-Sucking Simuliidae Phenology

Andrey Denisov, Elena Ivantsova, Anna Kholodenko, Nikolay Onistratenko, Elena Zaliznyak
The researches give results on the ecology and phenology of the most basic and common types of blood-sucking midges of the Simuliidae family. This article shows dynamics of the species composition and average seasonal number of blood-sucking subfamily Simuliinae midges in water reservoirs of the Volgograd...
Proceedings Article

Urban Color Characteristics of Cold City Harbin

Xu LU, Han QIN, Zhibin WANG, Si LIU
This paper uses quantitative analysis approach of urban color and the comparative study method, using China Color System National Technical Standards (GB/T15608-1995) and China Building Color Card as a basic tool for recording and analysis of urban color information. This paper researches on landscape...

Integrating Fuzzification into Finite-Horizon Inventory Models for Deteriorating and Seasonally Demanded Items

Sakshi Sharma
Seasonal products occupy an essential place in the Fast-Moving Consumer Goods (FMCG) sector, one of the most rapidly expanding industries worldwide. These items—spanning electronics, electrical appliances, computer accessories, fashion apparel, and perishable foods—share a common trait: they spoil quickly...

Cooperation Pattern Analysis of Seasonal Inventory Impawn Financing

Fan Cheng
The massively increasing of micro, small and medium enterprises (SMEs) is prompting changes in the competition of enterprises and supply chains, which put forward higher requirements to risk controlling level of supply chain financing. The development and innovation of logistics financing provides an...
Proceedings Article

Risk Analysis of Earthquake Disaster in Central and Western Regions of Gansu

Suping Zhang, Zhixiong Li, Yanping Sun, Rui Zhu
Gansu Province, located in the west of China, is one of the provinces where earthquakes occur frequently. We try to understand the actual population in different areas of long-term and seasonal changes, building types and different structure proportion, topography and secondary geological disaster hazard...

Design and Realization of Seasonal Experience Animation of Suzhou Garden 3D Landscape

Miaomiao Tian, Hongjuan Wang
The increasing maturation of digital technology has facilitated the protection and promotion of a growing number of Chinese intangible cultural heritage sites through digital media. Digital three-dimensional scene technology has reached a high level of maturity, yet most available scene animations display...
Proceedings Article

Seasonal variations of organic carbon in the sediments of Imphal River, Manipur

Khuraijam Usha, K. Khelchandra Singh
The Imphal River is major river in Manipur, India, that connects Manipur River and Bay of Bengal. The seasonal variations of organic carbon in surface sediments and the major sources along the course of the river were studied. Sediment samples were collected from five sampling sites, namely Lamlong Thong...
Proceedings Article

Optimisation of a Theoretical District Heating System with Seasonal Thermal Energy Storage

Miguel Angel Pans Castillo, Philip Eames
A novel model was used to simulate how an existing district heating (DH) network for Holywell Park, Loughborough University (Loughborough, UK) could be transitioned to low/zero carbon heat. A simulation which includes heat pumps (HPs) and evacuated-tube solar thermal collectors (ETSTCs) to both provide...
Proceedings Article

The Challenge of Planning and Constructing Large-Scale Hot Water TES for District Heating System: A Techno-Economic Analysis

Alice Tosatto, Fabian Ochs, Abdulrahman Dahash, Christoph Muser
In an international context (e.g. Germany, Denmark), the integration of long-term thermal energy storage (TES) into block heating systems already exists. Yet, the so-called pit TES cannot be easily applied to central European district heating (DH) systems because of the varying heat demand, temperature...

Exchange Rate Forecasting and Value-at-Risk Estimation on Indonesian Currency Using Copula Method

Kevin Bastian Sirait, Batara Maju Simatupang
This study aims to determine the future value and the value-at-risk estimation of four selected currencies, namely United States Dollar (USD), Australian Dollar (AUD), European Union Euro (EUR) and Japanese Yen (JPY) against Indonesian Rupiah (IDR). The Monte-Carlo simulation is implemented to estimate...
Proceedings Article

Behavior of the Desert Living Gobi Bear (Ursus arctos gobiensis) in Mongolia

Delgerchimeg Davaasuren, Andreas Zedrosser, Amgalan Luvsanjamba, Ariunbold Jargalsaikhan, Xue Yadong, Sun Ge, Li Jia, Ariunbuyan Kh, Jin Kun
In Mongolia, two subspecies of brown bears are distributed: the common brown bear are in the northern forested area of the country, and the Gobi bear (Mazaalai) inhabit the southwestern desert area. The Gobi bear, a desert-dwelling species, is critically endangered due to its extremely small population....

Bringing Indonesian Local Wisdom Into the English Class

Giyatmi
Learning a foreign language may influence the learners’ awareness on local culture. Learning a foreign language is learning its culture. They probably copy or even think that foreign culture is better than theirs. It can threaten their native culture awareness. It is necessary to insert materials with...
Proceedings Article

Comprehensive Comparison of Different Models for Large-Scale Thermal Energy Storage

Fabian Ochs, Abdulrahman Dahash, Alice Tosatto, Michael Reisenbichler, Keith O’Donovan, Geoffroy Gauthier, Christian Kok Skov, Thomas Schmidt
Large-scale thermal energy storages (TES) are advantageous to bridge the seasonal gap between heat demand and availability of renewables. However, the high investment costs associated with large-scale TES is still seen as a major barrier. Among others, challenges are space availability and the presence...
Proceedings Article

Identification of Seasonal Water Discharge Characteristics using Stable Isotopes of Water in the Mountain Region, Japan

Anji Kanai, Koichi Sakakibara, Yoshitake Nagahata, Keisuke Suzuki
Understanding water discharge processes in mountainous areas with large amounts of precipitation and high hydraulic gradients is important for disaster prevention and water resource management. In recent years, it has become clear that mountain bodies themselves have water storage functions in addition...

The Application of The AISAS Model in WhatsApp Marketing Strategy to Increase Sales Conversion

Arius Satoni Kurniawansyah, Sri Rahayu
This study aims to analyze the application of the AISAS model (Attention, Interest, Search, Action, Share) in the WhatsApp Marketing strategy of Raja Kurma Bengkulu, an MSME engaged in the trade of dates, Hajj/Umrah souvenirs, and Middle Eastern specialty products. A qualitative case study approach was...

Spatial Development of the Region in New Economic Realities

Alexander Olifirov, Krystina Makoveichuk
The article defines the conditions for strategic planning in the economic space of the region: stability, the value and the importance of economic space, the high capital intensity of enterprises in the region, well-prescribed business processes, and elaborate organizational structure of management of...
Proceedings Article

A Machine Learning Analysis of Groundwater Heavy Metals Contamination

K. Sankari, R. Subhashini, P. Mohana
This project’s objective is to classify as safe and unsafe levels of heavy metals using machine learning. In the southern state of Tamil Nadu, samples of groundwater collected from the Arani Taluk were used to generate these levels. An integrated machine-learning framework was developed during this study...
Proceedings Article

Demonstration of German Energy Transition in Zwickau (ZED) - Presentation of Concept

Dimitri Nefodov, Shengqing Xiao, Thorsten Urbaneck
This paper discusses the general conception of a local district heating system for the implementation of a zero-emission quarter in Zwickau (living lab). The heat supply is to be provided by regenerative energy sources. For this purpose, solar thermal collectors, seasonal thermal energy stores, an electrical...