bluuebunny/crossref_metadata_2025 huggingface dataset:
Technology acceptance and service convenience on repeat purchase decision of food delivery business in Thailand
Authors: Peemanee J , Wongsahai E
Published: May 2021

The purpose of this research is to explore the impact of technology acceptance and service convenience on the repeat purchase decisions of the food delivery business, Data were collected from consumers 400 using food ordering services through mobile application in Thailand. Questionnaires was used as data collecting tool. Descriptive Statistic, Multiple Correlation Analysis and multiple regression analysis were applied to analyst data. The results show that consumers who use food delivery service via mobile application express strong perception on technology acceptance includes benefits of use, ease of use and intention to use. Moreover, there are strong perception on service convenience includes access continence, transaction convenience, and post-purchase convenience. Technology acceptance in the aspect of perceived benefits of use, ease of use, and the intention of use have positive impact and are related to repeat purchase decisions. Service convenience variables, include access convenience, transaction convenience, and after the purchase convenience also hold positive and strong relation toward repeat purchase decision. It is therefore essential for food deliverty business to develop their applications that maximize the ease of use, transaction convenience, and access convenience which will optimize customer satisfaction and enhance repeat purchase decision.
Heavy metals concentration in spotted babylon snail, Babylonia areolata from Kemasin Coast, Kelantan
Authors: Jennielyn J , Sukri S A M , Hasnita C H , Noordin N M , Andu Y , Harith Z T , Sarijan S
Published: May 2021

Bioaccumulation of toxic metals in marine gastropods, including spotted babylon snail may cause a serious treats to human via food chain. Therefore, the present study investigates the metal contents in the spotted babylon snail, Babylonia areolata based on two sample groups, which are the whole sample and sample without the digestive system using Inductively Coupled Plasma with Atomic Emission Spectrometry (ICP-MS). The concentration pattern of the metals in sample with digestive system was As > Fe > Cu > Zn > Cd > Hg > Sn > Cr and As > Fe > Zn > Cu > Cd > Cr > Hg for sample without digestive system. Overall, the concentrations of these heavy metals were lower in samples without digestive system. Meanwhile, lead (Pb) and antimony (Sb) were not detected in both sample groups. Maximum permissible limits of toxic metals in food were compared and indicated that the heavy metals in B. areolata were within the safety levels except for As (sample with and without digestive system) and Cd (sample with digestive system). The exposure risk of heavy metals in B. areolata at the Kemasin coast, Kelantan is at a permissible level for the consumer provided that the digestive system is removed from the flesh.
Effect of ensiling duration on nutritional composition and oxalate content in dwarf Napier grass silage
Authors: Rahman M M , Said N N B , Mat K B , Rusli N D , Raja Ili Airina R K
Published: May 2021

Napier grass (Pennisetum purpureum) is a common forage plant that is usually given to ruminant animals. Besides moderate nutritive values, this grass also contains anti-nutrients such as oxalate. Dietary soluble oxalate can combine with blood calcium (Ca) or magnesium (Mg) and form insoluble crystals, which can give negative effects on animal health. This study was conducted to assess the effects of ensiling durations on fermentation characteristics, nutritional composition and oxalate content of dwarf Napier grass silage. Plants were cultivated under standard level of fertiliser application, harvested at 45 days of plant maturity, and then chopped into 2-3 cm manually. Chopped grasses were mixed with 5% molasses (w/w), and filled in plastic bags, compressed and kept it in air-tight conditions in room temperature at five different ensiling durations (0, 15, 30, 60 and 90 days). Three replicates were made for each of the treatment durations. The fermentation characteristics, chemical composition and oxalate content, were evaluated. Silage at 30 day fermentation showed the highest lactic acid (10.02%) and NH3-N (1.79%) contents, while silage at 90 d fermentation showed the lowest lactic acid (3.47%) and NH3-N (1.50%) contents. The initial pH value (pH 5.01) and dry matter content (22.8%) declined to pH 4.36 and 20.2% at the end of 90 d ensiling period. Ensiling significantly improved the crude protein, ether extract and ash contents of Napier grass silage. The soluble, insoluble and total oxalate contents in silage decreased as ensiling durations increased. Ensiling also significantly improved the sodium contents of Napier grass silage, while no consistent trend was observed on Ca, Mg and potassium contents. The results suggest that at least 30 days of ensiling duration can be recommended for Napier grass silage to get the optimum nutrients and oxalate content.
Effects of zinc on the growth and yield of maize (Zea mays l.) cultivated in a tropical acid soil using different application techniques
Authors: Ahmad Hisham A R , Ch’ng H Y , Rahman M M , Mat K , Zulhisyam A K
Published: May 2021

In Malaysia, the application of micronutrients fertiliser is not a standard practise although several previous studies have indicated that the procedure contributes to a major impact on plant growth and development. The aim of this study is to investigate the effect of the concentration and application of zinc (Zn) on maize growth and yield. There were nine treatments including; no fertiliser applied as control (T0), NPK 16:16:16 only (T1), NPK + 5kg/ha Zn (T2), NPK + 10kg/ha Zn (T3), NPK + 15kg/ha Zn (T4), NPK + foliar Zn (T5), NPK + 5kg/ha Zn + foliar Zn (T6), NPK + 10kg/ha Zn + foliar Zn (T7), NPK + 15kg/ha Zn + foliar Zn (T8). Plant height was recorded during 30, 45 and 60 days of plant ages. Maize ear length, diameter and numbers of kernel’s row were recorded on harvesting day (100 days). The findings suggest a significant difference in maize ear length, diameter and kernel row at p<0.05 for most treatment groups compared with control A and B. Ear length and diameter increased up to 20% with Zn application while kernel rows improved by 12% on the highest. The foliar application results showed significant increase of 0.6 cm diameter and 2.4 cm length of maize ear. However, there were no significant differences among treatments on plant height. Foliar and combination technique of Zn application also showed indecisive result on maize ear kernel’s row. Application of Zn shows increased diameter, length and kernel row of maize ear though plant height is unaffected. The combination of the application techniques obtained the optimum yield of maize.
Preliminary Studies on Isolation of Lipid-Degrading Bacteria from Contaminated Water
Authors: Jamil N A T , Pahirulzaman K A K
Published: May 2021

The increase in human activities has caused water pollution, where more pollutants are released into the water. Lipid is one of the common substances that can be found in contaminated water. Lipid-degrading bacteria refer to bacterial strains that can produce lipase and break down the lipid. This study was conducted to isolate and screen lipid-degrading bacteria from contaminated water samples. Four potential lipid-degrading bacteria were isolated from contaminated seawater and pond water. The ability of bacteria strains in degrading lipids was tested by growing the bacteria on Rhodamine B agar. The colony that emits orange fluorescent indicates the presence of lipase activity. The rate of lipid degradation by the bacterial strain on olive oil and motorcycles oil was carried out using the liquid-liquid extraction method with chloroform and methanol as solvents. Strain T1 isolated from Teluk Batik, Malaysia seawater showed lipid-degradation activity and capable of degrading commercial olive oil and motorcycles oil at 75.59% and 85.43%, respectively.
Gluten free brownies made with composite rice flour
Authors: Penjumras P , Thongfathamrong P , Umnat S , Chokeprasert P , Wattananapakasem I , Phaiphan A
Published: May 2021

This study was conducted to determine the effect of composite rice (Riceberry and Red jasmine rice) flour ratio and germination process on the physical and chemical properties and sensory characteristics of brownies. The ratios of Riceberry and Red jasmine rice flour at 75:25, 50:50, and 25:75 were investigated. As the amount of red jasmine rice flour increased, affected physical properties by increasing in the specific volume and L*, a*, b* values but decreased the hardness. However, there was no influenced on chemical composition. The sensory characteristics were found to increase with increasing ratio of red jasmine rice flour. However, there were no significance (p>0.05) different on sensory characteristics except the taste attribute score. Thus, the selected ratio was 50:50 Riceberry and Red jasmine rice flour. The effect of germination was found to increase specific volume, and L*, a*, b* values but decreased reducing sugar. There was no significance (p>0.05) different of sensory characteristics between brownies made from raw and germinated rice flours. Therefore, rice grains should be germinated before utilization of rice flour as substitution of wheat flour to produce gluten free product.
Public satisfaction and willingness to pay (WTP) for better solid waste management services in rural area of Kelantan, Malaysia
Authors: Abas M A , Hassin N H , Hambali K A , Karim M F A , Hussin H , Ismail L , Fitriani N
Published: May 2021

In Malaysia rural area, the fixed-rate method is the waste charging approach adopted by the local authorities because of low administration cost, but it is ineffective and has caused many environmental issues. Therefore, this study was conducted to explore the public willingness to pay on better solid waste management services at rural area of Kelantan. A total of 911 respondents from three (3) districts (Jeli, Kuala Krai, Gua Musang) participated in this study. The results showed that most respondents (±75%) expressed their satisfaction on current solid waste management services provided. This study indicated that nearly 62% of respondents were willing to pay more for better solid waste management services. This study revealed that the estimated mean willingness to pay (WTP) for better solid waste management service is RM12.05 per household. Logistic regression model suggested that satisfaction on solid waste management services affected the WTP amount, apart from socio-economic factors such as educational level, type of houses, occupation and household income. The results can be useful for understanding the rural resident’s attitudes and WTP for solid waste management services.
Pollination services support for agriculture productions values
Authors: Adnan N , Mamat M P , Tuan Ibrahim T M
Published: May 2021

Pollination is one of ecosystem services provided by tropical forest as addressed in The Millennium Ecosystem Assessment. Roughly, two-third of the world’s agriculture species cultivation required pollination. Studies shows that 70% of tropical crops seem to have at least one variety for which production is improved by animal pollinators. Most common pollinators live naturally in the ecosystem known as wild pollinators. The objective of this study was to quantify the economic value of pollination services by wild pollinators of Gunung Tebu Forest Reserves, Besut, Terengganu. Agricultural data was obtained from Department of Agriculture Terengganu. Data incorporated the list of farmers/villages, types of crops planted, annual area planted (ha), annual area harvested (ha) annual production (kg) and annual production value (RM). The economic value of pollination services was estimated by multiplying production value of each crops with its pollinator dependence ratio. This paper considered four types of crops, namely durian, watermelon, melon and rambutan. Results of analysis on economic value of natural pollinator services based on pollinator dependence ratio was RM 6,588,630.91. These accounted for 56% of the total production values for the region. It demonstrated that the natural pollinators have important impacts and benefits to agricultural sectors through pollination services provided by the nearby forest. With improved pollination services, crop production could be further increased, successful agricultural production, pollination would contribute significantly to world food security.
Simulation and Analysis of Thermal Environment and Building Comparing Wetland Conditions in Banjarmasin-Indonesia and Saga-Japan
Authors: Rahman A , Tharziansyah M , Nurfansyah  , Agusniansyah N
Published: May 2021

Climate change has actually happened, according to NASA data the surface temperature of the earth has increased significantly. The impact of rising earth surface temperatures causes erratic weather conditions, high rainfall and drought in the summer season. In August 2019, devastating forest fires in Indonesia caused smoke on the islands of Sumatera and Kalimantan. Meanwhile in Japan, flooding occurred in Saga prefecture due to high rainfall for several days. Environmental conditions between Indonesia and Japan are different but experience disasters at the same time. This study examines the real conditions of the thermal environment in Banjarmasin and Saga. The analysis results of the thermal environment and building thermal simulations in the two cities, there are similarities in thermal anomalies that tend to be high or extreme. In addition, thermal measurements are carried out in the summer of August and September. That month is summer conditions with a maximum temperature of 37°C, but in Saga it floods when the Banjarmasin experiences a drought. Building technology and accurate weather predictions from the government has been able to reduce the impact of disasters from climate change.
Urban Contemplative Architecture Design through Light and Sound
Authors: Phua Jacky , Dewi Julia , Wibisono Andreas
Published: May 2021

This study aims to formulate the design factors for contemplative architecture in an urban context. The ability of architecture to influence the atmosphere and the experience of its users is the basis of research. Theoretical analysis is used to find the connection between elements that can trigger subjective properties to form a contemplative space both direct or indirectly. The quality of secular sacredness that is often associated with contemplative experiences has been elaborated as well. Secular sacred that does not depend on religious connotation and divinity are used to focus the attention solely on architectural elements in shaping one’s experience. The two main factors that shape architectural experience are light and sound. By exploring the characteristic and manipulation of light, sound and aural architecture, the feeling of sacredness can be created through spatial experience. By using the theory of contemplative space properties as the main theory, the theory of light and sound will work as supporting theory in formulating the design factors for contemplative architecture. The theory framework then is read on design project, to find how they work and what is missing. At the end, this study produces a prototype of contemplative architecture design for urban context through light and sound.
360° Virtual Tour of the Traditional Malay House as an Effort for Cultural Heritage Preservation
Authors: Harun Nor Zalina , Yanti Mahadzir Sri
Published: May 2021

The rapid growth in technology has created new innovation in the field of information technology. One of the innovations created from technological advancement is virtual reality that can be extended through virtual tour that provides real-time experience in exploring a space or an area. Nevertheless, preliminary research on the development of digital sector in heritage architecture only focused on historical site instead of building. Although there is an exploration paid to the heritage building, the effort is limited to colonial buildings and little attention has been given to the local heritage architecture. Hence, this paper aims to explore the development of 360 ° virtual tour of the traditional Malay house that is over 100 years old as one of an important measure to preserve, protect and interpret the built heritage and cultural history. The primary data was analysed from the building inventory through high-resolution photography using a fisheye lens digital camera. Photos collected were combined to create panoramic effect using a stitching technique. The 360 ° virtual tour application was developed based on the Multimedia Development Life Cycle theory. The findings show the application is produced as a digital database consisting of physical qualitative attributes data for university’s management and recording for posterity. The outcome from this study has proved how technology converts the traditional learning and museum visit can become an enjoyable platform of learning, motivating and understanding of building structures and unique architectural details.
Critical Analysis of Urban Livability Measures Based on the Perspective of Placemaking
Authors: Christy F , Raissa G , Sihotang S , Wijaya K
Published: May 2021

The livability level of an urban area is a substantial measure of one’s sense of connection to their neighborhood. Urban livability is often measured based on various measurable aspects such as stability, healthcare, culture and environment, education, and infrastructure as stated in EIU’s Global Liveability Ranking. However, these indicators often neglect the nature and processes by which places are made that form people’s sense of place much more than the physical availability of urban amenities. Therefore, this paper aims to analyze the critical perspective and contribution that placemaking brings to the measures of urban livability. This theoretical study analyzes key concepts and frameworks from secondary data such as reports and journal papers with the inductive content analysis method. Through the lens of placemaking principles, the gaps in many urban livability measures are identified. It is proposed that urban livability measure should incorporate placemaking principles of being community-driven, local assets, bottom-up, and trans-disciplinary to enhance the human-environment quality of urban livability.
The Role of Complexity, Coherence, and Imageability on Visual Preference of Urban Street Scenes
Authors: Ernawati J
Published: May 2021

This study meant to explore the role of several visual quality concepts, i.e., complexity, coherence, and imageability, on people’s preference for street scenes in the urban area. The study chose three different street characteristics in the town of Malang-Indonesia as the case study sites that consist of commercial street, historic commercial street, and historic residential street. This research applied a field survey using a questionnaire with a five-point Likert scale and seven-point multiple rating scale techniques. There were 363 respondents participated in the survey. Data analysis employed descriptive statistics and simple regressions analysis to identify the influence of complexity, coherence, and imageability quality on urban street scenes’ visual preference. Results indicated that coherence and imageability consistently play essential roles in people’s preference for the three types of street scenes. Meanwhile, complexity quality only influences visual preference on a historic residential street and does not influence people’s preferences on commercial streets.
The Dynamics of Productive and Non-Productive Spaces in Coastal Tourism Areas in Denpasar
Authors: Nurwarsih Ni Wayan , Maha Putra I Nyoman Gede
Published: May 2021

Tourism in Bali has redefined the use of space. The formation of new activities carried out by new users, has changed the way people use space. Spaces exist because they form and some use, create governance and bring up spatial practices that may be hampered by the current digital age. This research will examine the process of redefinition of space, the formation of productive and non-productive spaces in accordance with the representation expected by the community. In this study, Sanur Beach, a traditional area that has become a tourism space, will be used as a case study. The method Qualitative, by mapping activities based on time segments for space use, interviews to determine user expectations and experiences, identifying patterns to find out how governments regulate space and building data representations through simulations of the movement of space users. The most significant result is the presence of a new identity in the meaning of space, which has been transformed due to spatial practices that are influenced by space users and the development of digital technology. Thus, the use of space in the era of global tourism in which different cultural backgrounds of space users affect the definition of space. This is where the space planner needs to consider how the representation of space by the user has implications for the regulations of the government and customary regulation.
Geospatial Analysis on the Impact of Road Defects on Motorcycle Accidents
Authors: Amir Muhammad Hizamuddin Mohd , Naharudin Nabilah
Published: May 2021

Road accident rate in Malaysia keep increasing over the year. Since then a lot of precaution step, research, life and cost taking apart. However, most of road accident cases are from the group of motorcyclists. To overcome and controlled this trend, the Malaysia society should be aware as a group, because this problem cannot be solved in a single entity. In the identification of the cause of road accidents, decision-makers often need as much information as possible before attempting to make decisions about appropriate measures. Accurate statistical prediction and visualization of information graphically are important for the study of road accidents. Geographic Information System (GIS) technologies, has been applied in this study for analysing the distribution of road accidents and their factor. The main issue that has been focus for this study is the impact of road defect for the motorcycle accident cases in the study area. By using GIS technologies, this is the best medium to determine the relationship of road defect impact in road accidents and for the road safety especially for the group of motorcyclists as well as for effective supervision. GIS tools have become one of the most commonly used programs for the various fields of study and project. It has been widely used in a variety of applications for planning, presenting and analysing the data and result.
Analysis of the Relationship between Forest Fire and Land Surface Temperature using Landsat 8 OLI/TIRS Imagery
Authors: Junaidi Siti Nurhaliza , Khalid Nafisah , Othman Ainon Nisa , Hamid Juazer Rizal Abdul , Saad Nurhafiza Md
Published: May 2021

Forest fires are the main threat to the sustainability of forests around the world destroying the valuable forest biodiversity and nearby infrastructure. Forest covers provide shading, cooling the environment, and lower thermal absorption. However, the changes in forest cover due to forest fires increase the land surface temperature (LST) locally. This study is aimed to analyze the relationship between forest fires and LST using Landsat-8 OLI/TIRS imagery in Kuala Baram, Sarawak. More than 1500ha of forests and plantations have been destroyed after 26 days of fires, deteriorating the air quality to hazardous levels, damaging the nearby house and infrastructure. The differenced normalized burn ratio (dNBR) between pre-fire and post-fire NBR was used to estimate the burn severity categories in Kuala Baram, Sarawak. It was found that the burn severity ranges from moderate-low to moderate-high levels. The correlation between forest fire and LST in Kuala Baram, Sarawak in June 2019 and September 2019 was calculated using Pearson’s correlation coefficients. It indicates the strongest negative relationship between NBR and LST in pre-fires (R2 =-0.985) and post-fires (R2 =-0.996). The findings from this study showed that forest fires also affecting the land surface temperature of Kuala Baram, Sarawak along with the physical damages that have been diminished from the forest fires occurrences.
Identifying Suitable Areas for Plantation of Organic Products Using GIS and AHP
Authors: Mohd Zaini J C , Saraf N Mohamed , Naharudin N , Abdul Rasam A R , Hashim N
Published: May 2021

Organic farming is a technique, which involves cultivation of plants in natural ways. In Malaysia, because the organic food industry is still small-scale, over 60% of organic foods are still imported and it is not possible for the availability and output of organic goods to meet the local demand and need. This study was intended to utilize the GIS and AHP technique to identify suitable areas for organic farming in Sabak Bernam, Malaysia. The study was conducted based on the objectives where criteria for organic farming were identified through background research. Pair-wise comparison (PWCM) method using questionnaires answered by experts were used to determine the weights for each of the parameters used. For this study, seven (7) criteria were considered. The criteria were then weighted according to importance and those weighted criteria were combined to produce a suitability map. A site suitability model was built using the Modelbuilder tool in Arcmap. The model used the AHP and Weighted Overlay basis which provides promising result for the analysis of finding suitable sites for organic farming. Results obtained showed that the majority of land within the Sabak Bernam district is suitable to carry out organic cultivation where the land is far from road networks, contains high organic matter content, gentle slopes with flat aspects low elevation and less than 10 meters from drainages. While land deemed not suitable involves land in dense urban area. This simultaneously means that the land is too close to road networks where underground contamination is a major possibility.
The Production of Assets Inventory by using a 360-degree Camera Mobile Mapping System in Langkawi, Malaysia
Authors: Abdullah S , Tahar K N , Rashid M F A , Osoman M A , Abdullah F
Published: May 2021

Asset management system is a crucial element of a utility project because it helps a company to inspect the asset inventory systematically. Besides, it improves productivity and proficiency of companies to position them better and increases their return on investment. The traditional system of data collection is very tedious in producing an asset inventory system. This study offered a mobile mapping system (MMS) by using 360-degree cameras to reduce the time and cost involved in data acquisition. The aim of this study was to locate, digitise, measure, and tag the assets along the street network. The efficiency of these 360 technologies was investigated to obtain asset data for a 3D street view utility mapping and provide important information. The obtained image will be used to determine the location of observed asset. The digitising process was required to label the detailed asset information as well as map the asset. This technology consists of a combination of camera, Global Navigation Satellite System (GNSS), and Inertial Measurement Units (IMU). The efficiency of this technology was tested by mounting it on a vehicle such as car or motorcycle. The geo-referenced images were derived by using sensor models and were pro-cessed to produce a 2D information mapping for utility purposes. The study resulted in producing a digital map with Geographical Information System (GIS) spatial data and 360-degree imagery. Having such a system in place allowed to track the overall achievements of asset inventory, and thus utilised efficiency.
Evaluating the Performance of the state-of-the-art HybridSN Deep Learning Algorithm for Airborne Hyperspectral Image Classification
Authors: Abidin M A A M , Shafri H Z M , Al-Habshi M M A , Shaharum N S N
Published: May 2021

This study aims to evaluate the performance of state-of-the-art HybridSN deep learning algorithm versus standard machine learning (ML) and deep learning (DL) techniques using open-source Python libraries for producing hyperspectral land use and land cover (LULC) classification maps. Japanese Chikusei hyperspectral datasets captured by the airborne platform using Hyperspec-VNIR-C sensor were used in this study. Standard ML methods used in this study were support vector machine linear kernel (SVM-linear), support vector machine radial basis function kernel (SVM-RBF) and random forests (RFs) that were provided in Python’s Scikit-learn library. DL techniques used in this study were multilayer perceptron (MLP), two-dimensional convolutional neural network (2-D CNN) and hybrid spectral convolutional neural network (HybridSN), which integrates the 2-D and 3-D feature learning. These DL models were built based on the sequential model using Keras API. The results show that all the proposed methods obtained overall accuracies (OAs) above 95%. The HybridSN and 2-D CNN models gave the best score with 99.97% OAs for hyperspectral image classification using the Chikusei dataset.
Integration of Aerial Photography, Airborne LiDAR, and Airborne IFSAR for Mapping in Malaysia
Authors: Hassan H , Rahman S A F S Abdul
Published: May 2021

Aerial mapping is now widely used for plenty of applications especially in generating digital terrain models. In this Industrial Revolution 4.0 era, the digital product is integrated with each other to add a new value-added into industries. Therefore, the aim of this paper is to deliberate the integration process between aerial photography, airborne LiDAR, and airborne IFSAR for enhancing the airborne IFSAR quality and come out with new value-added aerial mapping products. The aerial photography was used to enhance the ORI IFSAR imagery through the image fusion method and LiDAR DTM was used to enhance the accuracy of IFSAR DTM through the DTM fusion method. For image fusion, the result shows that colorized ORI imagery (CORI) was generated. On the other hand, terrain profiling analysis was conducted to validate the result of DTM fusion based on by using LiDAR DTM as a benchmark. The result shows that the fused DTM accuracy is nearest to LiDAR DTM compared to IFSAR DTM. This result also shows that new value-added aerial mapping products can be generated from this integration process.
Geospatial Approach for Coastal Vulnerability Assessment of Selangor Coast, Malaysia
Authors: Mohd F A , Rahman A A A , Maulud K N Abdul , Kamarudin M K , Majid N A , Rosli A
Published: May 2021

The The length of the coast of peninsular Malaysia is approximately 4,809 km long. Coastal erosion is recognized as the permanent loss of land and habitats along the shoreline resulting in the changes of the coast. Thus, the aim of this study is to determine the vulnerability of erosion of the Selangor coast caused by sea level rise events. In this paper, by using satellite imagery, both manual methods and coastal extraction processing have been examined. Six variables consist of the coastal vulnerability index (CVI), which are coastal geomorphology, coastal slope, erosion and accretion rate, mean wave height, mean tidal range, and the increase in sea level. Vulnerability levels are classified into five vulnerabilities for 8 management units along the Selangor coast which are very medium, medium, moderate, high and very high. The finding reveals that the level of vulnerability of MU 7 Pantai Jeram & Bagan Sungai Janggut is very high because the rate of erosion in the area is higher compared to other areas. Finally, the outcome of this study provides a framework that can be used by decision makers, and relevant authorities to implement mitigation and adaptation measures in the effort to deal with the impacts of climate change on coastal regions.
Feasibility Study on Walkable City Through Implementation of Car-Free Zones and its Effect on Traffic Movement in Georgetown, Penang Using GIS Network Analysis
Authors: Salleh Abdul Hakim , Naharudin Nabilah , Halim Maisarah Abdul , Ruslan Nurfadhilah
Published: May 2021

For many years of vehicle technology developments, people have a tendency to not be separated from it. Excessive reliance on vehicle especially personal cars causes large span of available spaces were dominated by it. This situation has led to many significant issues in both urban and rural area which include congestion, safety on the road, and environmental sustainability issues. In order to cater these degrading issues, the car free and walkable city concept was applied in this study. Through these concept, sequential reduction in the number of cars on the roads and shifting of people’s mode of transportation would be possible. The principle of walkability together with limitations of vehicle accessibility area as the criteria in car-free spatial modelling is applied and presented in terms of maps showing the areas to be designed as car-free zone. The percentage of Georgetown’s pedestrianized streets is determined in conjunction with an evaluation of the impact of car-free zones on the route, distance and time of travel, and also its traffic impact projections around the area. It is found from the results that every localized traffic has a longer traveling distance and much slower pace. However, the travel time is sometimes reduced due to the roads that have been diverted to allow for a higher travel speed.
Tree Detection with a Mobile Laser Scanner
Authors: Masiero A , Tucci G , Vettore A
Published: May 2021

Tree detection has been considered in a number of forest-related applications, mostly related to the need of determining the presence and position of trees, and, in certain cases, the associated biomass. Most of the tree detection methods are typically based on the use of LiDAR surveys, and they often aim either at determining tree crowns or stems. This paper proposes the use of a low cost hand held device to acquire a good spatial description of the area close to the track reachable by the operator holding the acquisition device. Then, a tree detection method based on the local application of the Hough trasform is presented. The performance of the system is checked in an area hit by the Vaia storm in 2018.
Comparing and Evaluating Macao Flood Prediction Models
Authors: Zhang Zeyu , Qiu Jiayue , Huang Xuefei , Cai Zhiming , Zhu Linkai , Dai Weijun
Published: May 2021

Climate change causes extreme weather in Macao, especially typhoons and flooding. In this paper, some raw flood data is missing from the Macao Meteorological and Geophysical Bureau, due to some flood sensors that were damaged during Typhoon Hato in 2017 and Typhoon Mangkhut in 2018. So we use data interpolation to construct new datasets and curve fitting to simulate real inundation depth. Besides this, we explore Neural Network, Long Short-Term Memory, Random Forest, Adaptive Boosting, and Linear Regression for analyzing, comparing, and evaluating the best combinations of flood prediction models, datasets, and scenarios caused by typhoon presence in Macao. Furthermore, we apply Bayes Network to the aforementioned models to evaluate the accuracy of predicting flood situations because of typhoons. The experiment results show that the different models achieve a different performance in predicting specific scenarios.
Research on Integration and Innovation of Anhui Food Eco-tourism Industry under the Concept of Green Development
Authors: Shen Dongsheng
Published: May 2021

Anhui’s food resources are rich and colorful, and the conditions for the development of food tourism are unique. The article introduces Anhui’s unique “special dishes”, “famous teas”, “flavor specialties” and “morning tea culture” and other gastronomic cultural resources, analyzes the current status and problems of the development of Anhui’s food tourism, and proposes the development of different guidelines for Anhui food tourism projects. Finally, giving advice on the development of Anhui food tourism from “cultivating leading food enterprises, establishing a sense of gourmet brand”, “creating a batch of local food tourism products”, “Establishing quality standards of Anhui’s local brands, famous delicacies, and special flavor products”, “Designing tourism routes with the help of Anhui celebrity culture and time-honored brands” and other six aspects.
Current Situation and Problem Analysis of R&D Technology Investment of Water Environmental Protection Company
Authors: Yang Rongrong , Meng Qingjun
Published: May 2021

In recent years, the importance of environmental protection and ecological civilization construction in China is increasing, the market demand of environmental protection equipment in China is increasing, and the related environmental protection equipment companies have also ushered in important development opportunities. As the primary link of innovation, increasing R&D investment has become an important measure for enterprises to enhance their core competitiveness. In environmental protection equipment companies, the competitive advantage of enterprises is the core technology, and the core technology is also the fundamental driving force for the development of environmental protection equipment companies. The most efficient R&D enterprises can usually lead the technological trend of the industry. Therefore, this paper mainly selects four representative listed environmental protection companies in the field of water environmental protection in the environmental protection equipment industry, and analyzes the R&D of the above environmental protection companies from the perspective of R&D intensity and R&D scale Technical input status and existing problems, and put forward corresponding solutions for reference.
Study on analytical detection technology of pesticide residue in agricultural product food safety
Authors: Duan Suran
Published: May 2021

China is a large agricultural country, and the long-term use of pesticides in the development of agriculture has a certain toxic effect on human health and safety, which may cause cancer, teratogenicity, mutagenicity and other related symptoms. Technical analysis of pesticide residue monitoring is an important method to protect food safety, and the analytical technology of pesticide residue in agricultural products in china has made substantial progress. In this paper, the research progress of modern pesticide residue pretreatment technology and detection technology were described, as well as the development trend of pesticide residue detection technology. On this basis, the application of ultra performance liquid chromatography-tandem mass spectrometry (UPLC/MS-MS) technology was proposed to establish a highly sensitive and rapid method for the simultaneous detection of eight kinds of pesticide residues in agricultural products. In order to provide reference for the in-depth study of pesticide residues.
Research on Green Application System of Energy Saving and Environmental Protection in Urban Gymnasium Greening Project
Authors: Yang Xiaodan
Published: May 2021

The rational utilization and protection of ecological environment and resources has become the main premise of social development and construction. In the planning and design of urban gymnasium greening project, the concept of green energy saving has been popularized and become the main idea of planning and design of new urban gymnasium greening project. Gymnasium has higher energy consumption than other buildings because of its different characteristics and usage. Therefore, the gymnasium has great influence on energy and environment. Energy-saving design of gymnasium plays a vital role in energy saving, environmental protection and ecological construction of gymnasium. The full text starts from practice, based on the on-the-spot investigation of the form of city gymnasium, and through the problems found during the on-the-spot investigation, discusses the solutions to the practical problems of city gymnasium, puts forward the design principles of the form of city gymnasium, and provides a referential guiding framework and theoretical basis for the design of city gymnasium.
The Effect of Energy Saving and Emission Reduction of Semi-External Window Installation
Authors: Bin Bai , Lei Lu
Published: May 2021

As an important part of passive ultra-low energy building envelope structure, exterior windows play a very important role in lighting, heat gain, and thermal insulation. Passive doors and windows are currently mostly installed externally, and high installation costs, material costs, and safety have become obstacles in the promotion of energy-saving policies. We calculated and simulated the linear heat transfer coefficient of the window opening based on the software flixopro8, and obtained the window installation position with the smallest linear heat transfer coefficient between the door and window and different wall structures and the decisive factors affecting the linear heat transfer coefficient of the door and window opening.
Method validation for the determination of aniline and 3,3’-dichlorobenzidine by gas chromatography-mass spectrometry
Authors: Wang Zhao , Li Risheng
Published: May 2021

This article uses and validates the analytical methods for the determination of aniline and 3,3’-dichlorobenzidine in soil by gas chromatography-mass spectrometry, and discusses the determination of semi volatile organic compounds in soil by gas chromatography-mass spectrometry. The feasibility of the application. The results showed that the semi volatile organic compounds aniline and 3,3’-dichlorobenzidine target corresponding to the internal standard response value and concentration showed a good linear relationship, the correlation coefficient was between 0.9997 and 0.9983 respectively; the detection limit was 0.04 mg, respectively/kg and 0.04mg/kg, the limits of quantification are 0.2mg/kg and 0.2mg/kg; the relative standard deviations of the two semi-volatile organic compounds in the precision are 2.5∼16.9% and 3.6∼6.2%, respectively; the accuracy is 2 The recovery rates of these volatile organic compounds were 64.5-83.9% and 72.6-74.3%, respectively. The verification results show that the linear relationship, detection limit, precision and accuracy all meet the requirements of “Determination of Semi-volatile Organic Compounds in Soils and Sediments by Gas Chromatography-Mass Spectrometry” (HJ 834-2017). Using gas chromatography-mass spectrometry technology can achieve fast, accurate and sensitive detection of target substances, and can meet the detection requirements of trace semi-volatile organic compounds, so this method can be better applied to the detection of soil and other environments.
Analysis and Implementation of Economic Means of Environmental Protection in China
Authors: Wang Liang
Published: May 2021

Since the reform and opening up, China has been adhering to the extensive economic growth model, which has led to serious environmental damage, energy depletion, global warming and environmental pollution and other environmental problems have been increasingly prominent. The root of environmental problems lies in external diseconomy. Environmental pollution has obvious negative external effects, as environmental resources are public goods, enterprises will not increase their own costs in using or consuming public goods, but the society has to bear the marginal cost in providing the goods, which will lead to the inconsistency between social cost and private cost, thus causing excessive damage to the domestic environment. In the past, our country mainly governs by administrative means, and the shortcomings such as high management cost and poor effect in the implementation process are increasingly obvious. Combined with the treatment process of environmental pollution in western countries, economic measures have a good effect on the external diseconomy of environmental problems. According to the current environmental problems and governance status in China, environmental governance means in urgent need of transformation. Based on the literature, this paper analyzes the current situation of environmental pollution in China and the mechanism of economic means in environmental protection, puts forward the means of environmental governance and protection from the economic level, and discusses the future direction of environmental governance.
The Key Factors Influencing the Decline of Carbon Emission Intensity in Low-Carbon Cities and Countermeasure Research—A Case of Fuzhou, Jiangxi
Authors: Xi Xiping , Han Fei , Xie Yunsheng , Yang Lei , Yan Heng , Luo Chenglong , Sun Liyuan
Published: May 2021

Carbon emission intensity is an important indicator to evaluate the urban development level. Taking Fuzhou, a low-carbon pilot city of China in Jiangxi Province as an example, based on the current levels of energy consumption and carbon emissions, this paper proposes the concept of “the marginal effect of carbon emission intensity” and analyzes the eleven factors influencing the decline of carbon emission intensity in low-carbon cities. Results show that the rise of carbon emissions in industrial sectors are the main reason for the abnormal increase in the carbon emission amount and intensity of Fuzhou, and that the coal consumption level, GDP and electricity sent out to other cities are the key factors influencing the decline of carbon emission intensity. Based on the analysis, countermeasures and suggestions are put forward as a reference for the municipal government in the construction of low-carbon cities.
Summary of Application of Solar Thermal Evaporation Technology in Wastewater Treatment
Authors: Wang Xiaohui
Published: May 2021

In view of the current problems of sludge drying, this article mainly proposes a sewage source heat pump + solar heat collection system sludge drying technology, and expounds the feasibility of using sewage source heat pump and solar heat collection system as the heat source for sludge drying. The main principles, the structural characteristics of the main equipment and the operation precautions. It is clarified that this sludge drying method has good expansibility and practicability, and has the value of engineering application and further development.
Penetration and Prominence of Regional Culture in Urban Landscape Design
Authors: Chen Junyu
Published: May 2021

Urban development should get rid of the stereotypical design and planning mistakes, so as to pursue the prominence of local characteristic culture, bring the expression of regional culture with landscape design, and make the city more characteristic and impressive. In urban landscape design, it is necessary to excavate regional cultural elements, attend to the regional culture, and truly integrate regional cultural characteristics into urban landscape design. This work mainly discussed the penetration and prominence of regional culture in urban landscape design, and reflected on the embedded ideas and strategies in urban landscape design of urban regional culture through taking Luoyang as an example, so as to create a vivid city card with urban landscape design.
Research on Urban Innovation and Entrepreneurship Base Based on Energy Saving, Emission Reduction and New Energy Development
Authors: Wei Wei
Published: May 2021

Innovative companies often face strong resource disadvantages, making it difficult to gain a foothold in emerging industries. Existing research still lacks an in-depth investigation of the internal mechanism of how innovative companies in emerging industries break through resource constraints, successfully develop entrepreneurial opportunities, and then build competitive advantages. Based on this, this article sets a new orientation for the training objectives of innovative and entrepreneurial professionals in the maintenance of new energy vehicles, designs a connection plan, builds an integrated curriculum system, and optimizes professional courses at different stages.