bluuebunny/crossref_metadata_2025 huggingface dataset:
Improvement of oxygen transfer efficiency in the activated sludge process
Authors: Kan S L Eh , Fahmi M R , Shum K J , Ibrahim A H , Abidin C Z A , Kusuma B S
Published: June 2020

Sequential batch reactor (SBR) is a feasible and economically attractive alternative to continuous activated sludge process to remove pollutants (dynamics and flexibility). Most of the power consumption is consumed by the aeration system to aid the removal of contaminants. Therefore, an optimal aeration system must be proposed to ensure cost-effective and efficient treatment of wastewater. The objective of this study is to evaluate the effect of air flow rate on the oxygen transfer efficiency of the SBR reactor. Based on the results, the removal efficiency of COD and AN at an air flow rate of 7.0 LPM (5.0 mg/L) were slightly higher than the air flow rate of 5.0 LPM (4.0 mg/L). However, the improvement is not exceptional. Excessive DO level and aeration should be avoided to achieve cost-effective yet efficient removal of pollutants.
Migration of hydrocarbon liquid in unsaturated laterite soil with dissimilar volume and moisture content
Authors: Rashid M F Abd , Alias N , Ahmad K , Sa’ari R , Ramli M Z , Ibrahim Z , Shahrin M I
Published: June 2020

Groundwater contaminations due to hydrocarbon or organic solvent spills in saturated or unsaturated zones affect the water resources. The quantity of hydrocarbon spills in the groundwater might influence the hydrocarbon migration. In addition, the soil moisture content in influencing the rate of migration is also unknown. Therefore, this paper presents the investigation migration of Light Non-Aqueous Phase Liquid (LNAPL) in unsaturated laterite soil with two dissimilar moisture contents and different of LNAPL volume. These lab-scale studies discuss the results of migration phenomena by employing image analysis by using soil column, mirror, LNAPL, and Nikon D90 digital camera. Aggregated soil was poured and compressed in an acrylic column until 100 mm height. Then LNAPL was poured onto the soil column surface instantaneously. The LNAPL migration pattern in laterite soil was monitored and recorded using digital image processing technique (DIPT) at certain time intervals then were processed with Surfer software and Matlab routine for plotting the LNAPL migration pattern. As a result, the analysis displayed the higher rate migration of LNAPL with high moisture content and bigger amount of LNAPL volume. However, the rates of LNAPL migration decrease with lower moisture content and small amount of LNAPL volume. The migration time required to reach bottom of soil was longer for low moisture content with smaller amount of LNAPL volume as compared to the high moisture content with bigger amount of LNAPL volume.
Dimensional analysis relationship of lateral migration rate based on river physical model
Authors: Zamri Z , Abdullah J , Ariffin J
Published: June 2020

River meandering is a net outcome of erosion and deposition It initiates and develops width adjustment and planform evolution. Meandering process involves adjustment of the planimetric geometry and hydraulic factors. Many structures built within the vicinity of the river such as bridges, waterways/navigation and flood control contraptions are affected by river meandering and its distance. This research was carried out on a physical river channel model measuring 10m long, 2.4m wide and 1.8m deep located at Universiti Teknologi MARA Puncak Alam. Correlation analysis between the lateral migration rate, M and mean velocity, Umean to other variables. According to the physical consideration on lateral migration rate, M, there are three (3) major categories affecting channel bankline migration. There are hydraulic characteristics, water properties and soil properties, of which the latter is resistance to erosion. Therefore, the objective of this paper is to investigate the factors governing lateral migration rate for the development of an empirical model to predict lateral migration rate under the influence of non-migrating mid-bar.
Investigation of the best fit probability distribution for annual maximum rainfall in Kelantan River Basin
Authors: Ng J L , Yap S Y , Huang Y F , Noh N I F Md , Al-Mansob R A , Razman R
Published: June 2020

Flooding is one of the natural disasters that happens annually in Malaysia. Flooding is induced by the extreme rainfall event and this can cause severe impacts in terms of environment, society, health and safety. Consequently, investigating the best fit probability distribution for annual maximum rainfall can provide the fundamental ideas for government departments and relevant authorities to mitigate the flooding problems. The aim of this study is to investigate the best fit probability distribution in describing the characteristics of annual maximum rainfall for the period of 1994 to 2013 at the Kelantan River Basin. The Gamma, Gumbel, Generalized Extreme Value and Log Pearson Type-III distributions were fitted to the historical rainfall series. Three goodness of fit tests, namely the Kolmogorov-Smirnov, the Anderson-Darling and the Chi-Square tests were used to evaluate the probability distributions. The performances of each probability distribution generated by the goodness of fit tests were compared. Overall, the Generalized Extreme Value distribution seems to be the best fit probability distribution for the annual maximum rainfall at most of the rainfall stations except for the RPS Kuala Betis station that had the Log Pearson Type-III distribution as its best fit.
Assessment of water quality conditions in the Upper Johor River Basin
Authors: Mohamad K A , Othman I K , Jamal M H
Published: June 2020

The water quality data from 2 sampling stations in the Upper Johor River Basin (Upper Johor River and Sayong River) were analysed to evaluate the water quality conditions. The variation in water quality parameters between base and storm flow events were compared to identify the pollutant sources. The results indicated that Biochemical Oxygen Demand (BOD) was the main cause for non-point source pollution of the study area. The overall water quality conditions were good in terms of dissolved oxygen and total nutrients (Nitrogen and Phosphorus). The dominant sources of BOD could be from the fertiliser timing and application. Different from BOD, the majority of the water quality samples were from baseflow events for dissolved oxygen, total nitrogen and total phosphorus. The major differences between four water quality parameters are failing septic system, oil palm mills, wastewater treatment plants and domestic waste. The results from this research would provide useful information for total maximum daily load calculation, establishment of watershed and nutrient model, and development of Best Management Practices for the Upper Johor River Basin and comparable study area.
Pyrolysis kinetic study of homogenized waste plastic and date blend
Authors: Hesam N M , Saad J Md , Shamsuddin A H , Zamri M F M A , Rahman A A , Ghazali A F
Published: June 2020

Pyrolysis of high-density polyethelene and dried Dates blends are examined in this paper. There is abundance of HDPE and Dates waste available in Iran. Due to this factor, there are potentials to study these wastes in term of waste to energy conversion as feedstock in powerplants. In order to produce a quality fuel or feedstock by converting Dates and plastics waste through pyrolyzing, a proper analysing of the process kinetic parameters and the distribution of their activation energy (Ea) has been investigated. In this paper, three samples of HDPE and Dates blend with ratio of (1:3, 1:1 and 3:1) were utilized to study the thermal degradation of each blending sample using TGA analyser. Moreover, the (Ea) of HDPE and Dates blend was calculating using Friedman Method. The determined result for ratio of 1HDPE:3Dates is 60-67 kJ/mol, for 1HDPE:1Dates is 66-97 kJ/mol and for 3HDPE:1Dates is 131 kJ/mol. The higher ratio of plastic can increase the value of activation energy which require more energy for combustion in powerplant. Thus, the 1HDPE:3Dates is the best ratio which require lowest energy for combustion and by homogenizing the plastic with biomass we can increase the calorific value of the produce feedstock.
External Electrode Temperature Monitoring of Lithium Iron Phosphate Batteries Based on Fiber Bragg Grating Sensors
Authors: Peng Jun , Jin Yiming , Jia Shuhai , Xu Shouping
Published: June 2020

Lithium-ion (Li-ion) batteries have become a promising candidate for the electrical energy storage and power delivery solutions. Thermal management is a key tool to improve performance and safety of Lithium-ion batteries. Currently, the common method is using electric sensors to monitor the thermal behaviour of batteries. In this work, an optical fiber sensor was proposed for temperature measurement of cells. The proposed sensor consists of a metal ring and a fiber Bragg grating (FBG). The FBG sensor calibration test shows a good linearity and high sensitivity. The FBG sensors were gloved on the external electrodes to monitor the temperature variation during charge/discharge cycles, and the PT100 sensors were attached on the electrodes as a comparison. Comparison test illustrates the response of proposed FBG sensors has a good agreement with PT100 sensors. It provides that the proposed FBG sensor can be used to monitor the temperature variation of cells, which provides a promising tool to improve the thermal management and safety of Li-ion batteries.
Single Factor Experimental Study on The Preparation of Chitosan Oligosaccharide
Authors: Wang Qingyu , Chen Wenjing , Chen Xin , Xu Feng , You Zhaotao , Rong Haiwu
Published: June 2020

Chitosan oligosaccharides were prepared by papain enzymatic hydrolysis. The single factor experiments were experimentalized to study the degradation of chitosan by papains. The concentration of reducing sugar and the yield of reducing sugar in the enzymatic hydrolysate were used as reference indicators. The effects of reaction time, pH, reaction temperature, amount of enzyme and substrate concentration were discussed. The results showed that the concentration of reducing sugar increased at first and then decreased with the increase of pH value and reaction temperature. With the prolonging of reaction time, the reaction slowed down and the enzymatic hydrolysis speed slowed down. The increase of the amount of enzyme promoted the reaction rate, and the concentration of reducing sugar also increased. The change of substrate concentration also led to the change of reducing sugar yield. The optimal conditions were obtained by the single factor experiment. When 50 °C of the reaction temperature, 5.0 of pH, 60 min of reaction time, substrate concentration reached 1.75% and the amount of enzyme reached 1:10. At the above condition, the concentration of chitosan oligosaccharide was 4.33 mg/mL and the chitosan oligosaccharide yield was up to 24.73%.
Research on the Frosting Rule and Frost Suppression Strategy of Air Source Heat Pump in Guiyang, China
Authors: Mao Ruiyong , Yang Yaxin , Pei Peng , Yang Xuerui , Tian Maojun , Hu Cheng , Yang Weiping
Published: June 2020

In order to solve the serious frosting problem of air source heat pump in high humidity area in winter, a set of air source heat pump was tested and studied. The experimental results showed that the frost condition in winter in study area started when the outdoor temperature was less than 6°C and the relative humidity was more than 75%. The blocking experiment proved that frost formation was beneficial to the operation of the unit when the blocking degree was less than 10%. Furthermore, by extending the initial time of frosting, a new method of frost suppression was proposed, which extended the initial time of frosting by 22 minutes. In the high humidity area, air source heat pump was recommended to be used for heating when it is above 8°C in winter, while the staged frost suppression was considered when it is below 6°C to improve the performance of air source heat pump.
Discussion on Multi-Dimensional Diagnostic Technology Based on Fault of On-load Tap-changer
Authors: Yu Bing , Yang Zhi , Lin Haofan , Jin Yongtao , Yang Yong
Published: June 2020

On-load tap-changer is widely used in current power systems. Its main function is to change the position of the transformer winding tap-connect when operating under transformer excitation or load. The on-load tap-changer is in the process of changing taps. In the middle, the resistor must be used to achieve the transition to limit the circulation during its transition. The structure of the on-load tap-changer can be divided into three parts, namely the switch, the tap selector and the operating mechanism. The complexity of the mechanism causes frequent failures of the on-load tap-changer. Through the analysis of the causes of multiple faults occurring on the on-load tap-changer of the transformer, the abnormal physical information of the on-load tap-changer before the fault occurs is discussed. A joint detection technique based on vibro-acoustic fingerprint and driving motor current (acoustic and electric) is proposed.
Research on Design and Application of Reactive Power Optimization Software for Distribution Network
Authors: Haojun Zhao , Ye Zhu , Xiaofeng Wang , Yibin Xing , Simin Ding , Jian Chen
Published: June 2020

In view of the phenomenon of long power supply radius, low power factor, large line loss, and poor voltage quality in the single-radiation power supply mode of reactive voltage control in Jiangsu area, this paper studies and establishes a set of three-level coordinated control of reactive voltage in distribution network The system can realize the three-level coordinated control of the substation, transmission line and distribution voltage reactive power compensation device according to the actual short-term load changes, which can effectively solve the high voltage, ground voltage and three-phase imbalance existing in the power grid in Jiangsu. The voltage qualification rate is increased to 100%; in addition, the system can also provide analysis of the power quality status of the distribution network, combined with the analysis and comparison of the results of power quality optimization governance, to achieve scientific results evaluation, for the energy-saving control of the power grid and power quality governance Provide reference to provide basic data for power grid construction.
Fault Line Selection Method for Distribution Network Based on Angle Similarity
Authors: Feng Guang , Chen Ming , Xiang Guojie , Yu Kun , Zeng Xiangjun
Published: June 2020

Aiming at the problem that the current distribution network protection technology has a low accuracy of line selection, the method of fault line selection based on angle similarity is proposed. A plurality of fault feature quantities of each feeder in different operating states are collected to form a historical database. The clustering centers of fault classes and non-fault classes are obtained by fuzzy clustering analysis. Similarly, the real-time data of each feeder is collected to form a sample of the feature to be tested. The degree of similarity between the feature samples to be tested and the historical feature samples is analyzed by angle similarity. The sample to be tested is classified into a fault class or a non-fault class, and finally the fault feeder is accurately selected.
Effects of Ionic Liquid and Biomass Concentration to Partial Vapour Pressure Change in Hydrothermal Carbonization
Authors: Srilek Nongnoot , Aggarangsi Pruk
Published: June 2020

This study aims to investigate the effects of ionic salt liquid and biomass concentration to partial vapour pressure change in hydrothermal carbonization system. The durability of reactor and safety aspect are crucial point for constant volume system which pressure is independence and important in scaling up hydrothermal process. The ionic salt including calcium propionate with the molality of 0.33, 0.43 and 0.65 and sodium chloride with the molality of 0.86, 1.14 and 1.71 were used. The suspension of corncob biomass and deionized water with the ratio 1:20 and 1:10 also were evaluated. The partial vapour pressure of the solution of sodium chloride with the molality of 1.71 decrease for 12.5 %. The partial vapour pressure of corncob biomass concentration with 1:20 decrease for 2.8%. The hydrochar produced from the 240 °C of reaction temperature and 100 minutes reaction time demonstrated the gradually decrease of hemicellulose constituent corresponding with higher biomass concentration.
Experimental Research on Energy Extraction Characteristics for Half-rotating Impeller Tidal Turbine
Authors: Wang X Y , Li L , Xue K , Yu X F , Liu C , Qiu Z Z , Zhang L A
Published: June 2020

The half-rotating impeller tidal turbine (HRITT) is a new type of vertical shaft tidal current turbine with lift and resistance performance. The experimental prototype and the experimental platform of the HRITT were designed and simulation experiments was carried out to analyze the energy extraction performance of the HRITT under various flow velocity and loads. The results of the experiment indicated that the platform was stable as well as reliable. The HRITT not only had good dynamic characteristics at low inflow velocity, but also had high efficiency that its maximum coefficient of energy extraction could increase to 45%. The flow velocity had little influence on the maximum efficiency of the HRITT.
Analysis of Ground Settlement in Metro Tunnel Construction with Shield Tunneling Method
Authors: Shen LU
Published: June 2020

With the continuous development of underground space, subway tunnel construction methods are constantly updated and developed. And shield tunnel method has become one the most common methods of subway tunnel construction. However, shield construction is often accompanied with the occurrence of surface subsidence. There may be a collapse of the surface when the surface settlement reaches a certain amount and the up buildings on the surface may be seriously influenced. The construction model was established based on FLAC3D software by using the engineering geological characteristic parameters of the study area and the observation data of ground subsidence during construction, which was compared and verified with the field vmonitoring value, and the subsidence was simulated and predicted. Using FLAC3D to establish a settlement prediction model for tunnel excavation and record the space-time changes of surface subsidence, it can better reflect the land subsidence situation and law in the horizontal and vertical directions of the axis of the subway tunnel.
Entropy Theory and Pearson Type-3 Distribution for Rainfall Frequency Analysis in Semi-arid Region
Authors: Kong Xiangming , Hao Zhenda , Zhu Ying
Published: June 2020

Rainfall distribution has becoming erratic due to the changing climate, the human activities and the environmental damage. Therefore, frequency analysis of rainfall is important for water-resources system planning and mitigation of hydrological extremes events. In this study, the entropy theory and Pearson type-3 distribution have been applied to monthly rainfall frequency analysis of Tongliao City in semi-arid region. The comparison between two methods shows that (1) the entropy theory and Pearson type-3 distribution are both able to capture the shape of PDF of monthly rainfall in Tongliao City; (2) the entropy theory is more suitable for the description of the statistical probabilities with small corresponding errors than the Pearson type-3 distribution; (3) the key statistical properties of historical records of Tongliao City are able to be preserved by the entropy-based distribution without any assumptions. The results could provide scientific basis for planning and design for water resources systems, which is of great theoretical and practical significance.
Identification of Cultural Landscape Factors for Sustainable Development: A Case Study of Traditional Villages in Changbai Mountain Area
Authors: Zhang Qunsong , Kim Eunyoung , Yang Cuixia , Cao Fucun
Published: June 2020

Cultural Landscape (CL) is a variety of manifestations of interaction between human beings and their natural environment. CL is the internal power of sustainable development(SD) and has a significant link with the development cycle system. As a carrier of living cultural heritage, traditional villages embody the regional CL formed under the comprehensive effects of natural resources, humanity history, architectural aesthetics, the integration of ethnic groups and production methods, and the symbiosis between human beings and the environment. This paper aims to study a method to identify CL factors of traditional villages based on the elements of SD in the aspects of environment, economy, society, peace and security. Quantitative analysis of the SD of Changbai Mountain traditional village CL was conducted. We collected data from 11 villages from the national spatial data cloud and relevant literature. The results provide the evidences for deciding the balance point of SD to support the protection and revitalization of villages at the same time.
The Practical Consideration of Ecological Landscape Design of Beautiful Countryside-The Practice and Consideration of Landscape Design of Countryside in Changan District, Xi’an
Authors: Yong Sun
Published: June 2020

The construction of beautiful countryside is the national strategy of People’s Republic of China, which involves the economic development, cultural revitalization and the happiness index of the villagers of the vast rural areas. The ultimate target of the construction of beautiful countryside is the construction of benign development of modern countryside lifestyle. The author introduces the paper with practical activity, and with the inheritance of cultural tradition of countryside and the design application using rural material as the tool. Through the comb of the latest voluntary service practice and relevant considerations on it, the study attempts to pursue the possibility and reasonability of ecological landscape design of beautiful countryside in China. In terms of the inheritance of cultural tradition of countryside, there are two forms. In the first place, it embodies in the protection of traditional countryside cultural landscape; and in the second place, it embodies in the continuation of the idea of harmonious relationship between human beings and the nature in the daily life of villagers. With the rural materials that are familiar to the local villagers, the landscape construction of the countryside can better exhibit the history of their own village, the memory of great humanity and honour. Only in this way, can the landscape design be welcome.
Research on the Stability of Catalysts Characterized by TG-DTA and ICP
Authors: Zhang Yongli
Published: June 2020

The stability of the catalysts can be verified by the experimental characterization before and after using. In this study, the reusability of Ru and Pd catalysts were investigated in the CWAO process for the treatment of refractory ceramic printing wastewater. By comparing the TG-DTA curves of Ru catalysts after the first, second and third use, the TG curve showed that the mass of the catalyst changed with the temperature. The curve of DTA (Differential Thermal Analysis) showed no significant difference between the endothermic peak and exothermic peak. The DTG curve, combined with the TG curve, represents the endothermic/exothermic state at a certain temperature. Meanwhile, it can also explain the changes of the sample, such as dehydration, decomposition, oxidation, etc., and the curve changes are not obvious during three USES. This shows that the catalyst has good stability. ICP data, concentration difference of Fe, Co, Ce and Ru were 0.261,1.177, 0.614,0008 mg/L, respectively. ICP data, concentration difference of Fe, Co, Ce and Ru in three times of use of Pd catalyst were 0.547,0.067, 0.099 and 0.00008 mg/L, respectively. TG-DTA and ICP were used as the characterization methods, and the dissolution concentration of metal ions was used as the evaluation index of catalyst stability. The results show that the Ru-catalysts and Pd-catalysts have good catalytic stability.
Ontology-based Knowledge Modeling of Post-occupancy Evaluation for Green Building
Authors: Zhao Yuanhong , Yang Qingping , Fox Andrew , Zhang Tao
Published: June 2020

Despite the development of advanced information and knowledge management technologies in the architecture, engineering, and construction (AEC) industry, there is still a missing link between the green building performance evaluation (BPE) domain and the knowledge management system. In the BPE domain, post-occupancy evaluation (POE) has been developed as an effective method to evaluate actual building performance after the building has been occupied for some time. However, the vast POE knowledge is mostly documented in various standardized references with different focuses, and it is time-consuming to manage and acquire scattered and fragmented knowledge data. Ontology, as a semantic web technology, has been widely used in the knowledge representation and management engineering field. Hence, this research integrates ontology into the green building post-occupancy assessment domain to develop a unified semantic model to systematize the fragmented knowledge. The extracted POE knowledge from evaluation standards is formalized into OWL (Ontology Web Language) ontology, which achieves knowledge systematization in the POE domain and enables the knowledge-based application systems to retrieve, share and reuse POE knowledge more effectively.
Evaluation of The Effectiveness of Beach Side Vegetation to Control Wind velocity in Jaya Ancol Dreamland, North Jakarta
Authors: Mustika D , Nasrullah N
Published: June 2020

In some resorts established in the coastal areas sea breeze strongly affects human comforts. Vegetation as a wind barrier is used to modify beachside microclimate comfort by controlling, reducing, or redirecting wind. They usually consist of trees and shrubs, but may include perennial or annual plants and fences. Taman Impian Jaya Ancol (Jaya Ancol Dreamland) is one of the most prominent public open spaces in Jakarta that connected directly to Java North Beach. This research evaluated how much of Ancol Beach vegetation helps to increase the community’s comforts. This research was limited to measuring the effectiveness of vegetation wind barriers in controls wind velocity. This research observed four vegetation plot types 1 control plot (bare land), and three vegetation wind barrier plots (one with homogenous vegetation and two with heterogeneous vegetation). Wind velocity was measured at a distance of 0, 10, 20, and 30 m from the edge of the beach and approximately 1,5-2 meters in height. Effectiveness of wind barriers to reduce wind velocity was calculated as the decreased of wind velocity between 30 m and 0 m. The leaf area index (LAI) and plant diversity were also observed. The result of this research showed that wind velocity under vegetation was always lower than the wind velocity in the control plot. Wind barrier type heterogeneous 1 was more effective in controlling wind velocity than other types. This type had the highest species diversity score (H=1.89) and the highest LAI (1.334) and has reduced wind velocity around 81,8%. Other wind barrier types were less efficient and have reduces wind velocity by a smaller percentage. The heterogeneous barrier type 2 for 45% the homogenous for around 35,5% and bare by 29.4%.
Ngarawunan and Pamageran: Reading the Cultural Landscape through the Relation of Settlements-Agriculture-Forest in Kasepuhan Ciptagelar Community
Authors: Kusdiwanggo S , Budiharta A P
Published: June 2020

Kasepuhan Ciptagelar community is a society that holds the padi-culture until now. Ciptagelar community respects the paddy and believes it as an entity that has a soul. This belief is manifested in every routine activity and ritual related to paddy. Some of these activities are namely ngarawunan and pamageran. They became a background for the formation of a cultural landscape in Kasepuhan Ciptagelar. Both ngarawunan and pamageran are rituals that have impact on the protection of the agricultural environment. The event of ngarawunan involves landscape relation among settlements - dry paddy field (huma) - wet paddy field (sawah). Whereas the event of pamageran involve the relation of settlement - dry paddy field - forest. Both contain local knowledge that full of meaning. How do they build a cultural landscape in Kasepuhan Ciptagelar? This article is written based on the results of research with qualitative-inductive methods through an ethnographic-participatory paradigm. The result of this research indicated that the relations between two events in the agricultural environment of dry-wet paddy field with settlement and forest establish the spatial concept as a paddy cultural landscape. Ngarawunan and pamageran events have mutual coexistence. The combination of the two basic mentalities of dry-wet paddy field community, especially the wet paddy filed in the ngarawunan shows the spatial concept without borders. Meanwhile, the mentality of the dry field community in pamageran presents the concepts of boundary or territory. Both are side by side and complement each other harmoniously. These original spatial concepts which eventually have become the indigenous spatial concept of Kasepuhan Ciptagelar community is still sustained up to present.
Development Concept of Productive Landscape with Urban Agriculture Based on Potential Green Open Space and Community Preference in Bogor City
Authors: Ramandhani K , Budiarti T , Makalew A D N
Published: June 2020

Bogor City is one of the closest cities to capital city. This is the main reason for the rapid development of Bogor City. Rapid development causes land to be built in Bogor City increasing accompanied by population growth which is directly proportional. This rapid development has an impact on the reduction in green open space which incidentally can be used as a land for people to do agricultural activities for their food needs. This study aimed to find the location of potential green open space for the development of produvtive landscape with urban agriculture and make it an applicable with a community preference approach. The method used in determining potential locations is GIS analysis. Using the spatial map of Bogor City, by overlaying hydrological maps, groundwater map, poverty map, land use map and slope map. Then a ground check is made to ensure the accuracy of the GIS results. The result is a thematic map of the potential for developing urban agriculture in Bogor City. Determination of community preferences is obtained using a questionnaire conducted using the snowball method around the potential area. Respondents who were sampled were limited to 30 people with each with diverse characteristics. The method used to determine communities preferences is the Chi Square statistical method. The result is there are a 14 point of potential location that spread in 3 region of Bogor City. The 3 region are 7 location in South Bogor, 5 location in West Bogor, and 2 location in Tanah Sareal. There is also find a significant relationship between urban agriculture preferences and landscape types around potential green open space points. Potential green open space and community preferences become the basis for creating applicable green space concepts. The concept of green open space development will be adjusted to the preferences of the community by considering factors type of plant that has a significant different of three region. The concept of productive green open space development is expected to be able to support the economic growth of the poverty area in Bogor City.
Study on Tourism Potency and Planning of Techno-Edu Tourism in Institut Teknologi Sumatera
Authors: Franjaya E E , Prastiwi I
Published: June 2020

This research was a result of thinking about the main function of a university in Indonesia, that is Three pillars of The University (education, research, and dedication to society). With a condition of Institut Teknologi Sumatera (ITERA) as a new technological university in Indonesia, there is creative thinking to develop them together to be an integrated program with a tourism concept on it. We named it as Techno-Edu Tourism ITERA. This study aimed to develop Techno-Edu Tourism program through an analysis of study programs that have a high potential as educational tourism object and attraction. The method used in this study is related with landscape planning technique with a qualitative-descriptive method as complement. Based on the result of questionnaires, interviews and field surveys, indicated that there is a high potential on developing the study programs and technical management units in ITERA to be educational tourism objects. With landscape planning technique, we designed the tourism site plan and 3D visualization of some of the objects.
Community-based ecotourism planning in the intensive-used zone of Taman Nasional Bali Barat, Gilimanuk, Jembrana
Authors: Utami N W F , Dharmadiatmika I M A
Published: June 2020

Taman Nasional Bali Barat (TNBB) is conservation area for many species including a protected bird species of Curik Bali (Leucopsar Rothschildi) and the ecosystems of the park is vulnerable so that it requires to be protected. To develop the region, especially a conservation area, we need a balance ecosystem management while providing benefits to the local community. The objectives of this study were inventorying a physical, social, economic and cultural resources of the park and at the same time planning the area by considering a balance between environmental protection and providing benefits for the community. Our focus area was on the national park management unit I (SPTN I) of intensive-used zone (iz). This research was conducted with the survey method through several stages. Firstly, inventory by conducting observation, interview and literature study. The second stage was analysis-synthesis phase by implementing SWOT analysis and spatial analysis. The last one was planning stage by selecting program and priorities and implementing it into spatial zoning. Based on our analysis, there were four buffer villages found in the area (Blimbingsari, Ekasari, Gilimanuk, Melaya) with five types of forest ecosystems (tropical rain forest, mangrove, monsoon, savannah and coastal forest). We develop the area into two area namely main area and supporting area with proportion of 31% main area and 69% supporting area. In main area, it characterized as community independently managing an ecotourism enterprise. In contrary in supporting area, it characterized as community depend on ecotourism enterprises while they might work in private or regional or cooperative companies.
Analyzing the Community’s Perspective on the Relationship Between Landscape Characteristics and the Importance of Toponym: a study case of Matsudo-shi, Chiba-ken, Japan
Authors: Imara I D , Furuya K , Nurhayati
Published: June 2020

It is a common knowledge that every location on earth has its own names, called toponym. Essentially, the name functions as a place identity, distinguishing one place to another based on the community that lives in the area. From the perspective of the community in Japan, toponym is dynamic: it is a cultural heritage, but the name might change, become new, or disappear. This happened because local authorities assumed they own the toponym (there is no enforcement, and it is free to change or even to sale). There are 5 origin theories for toponym in Japan: terrain, Ainu language, disaster, traveller/direction, and others. Matsudo-shi is a city made from merging other small cities into one. In the case of the toponym of this city, there are 3 theory possibilities that emerged based on literatures. Even so, it is very difficult to determine which one is true, caused by the lack of records, other supporting literatures, and researcher’s language ability. Furthermore, the landscape characteristics that reflected the origin of the name in the said area also need to be defined and analysed further. This research has the purpose to trace the information about the area toponym: the origin of the name, to analyse the community’s perceptions and preferences, and to evaluate the landscape characteristics. It was conducted with three kinds of studies: literature study, field survey, and questionnaires. The result of this research is a general understanding towards toponym and the community perspective related to this in Japan. The conclusion for the result was the respondents seem to value characteristic of Matsudo-shi very much and thought that some enhancement based on the toponym history is recommended for the next town management planning.
The Relationship between Evaluations of Water Channels Landscape and Landscape Elements in Sub-urban Residential Area in Tokyo, Japan
Authors: Yazawa Y , Furuya K
Published: June 2020

This study clarified how people’s evaluation of the water channel landscape affects due to differences in landscape elements. To evaluate the success of the water channel landscape, a land-use maps of the areas around the water channels were created. After that the maps were used to classify land-use into eight types. In addition, the target water channels were classified into four types based on land-use around them and whether people could access them. Results showed that the land-use around water channels has an affect on how people view them. We also conducted workshops to clarify the relationship between the public impressions of water channel landscape as a familiar green space and landscape elements in residential areas. According to the participants, their preference for water channel landscapes of this type was based on three elements: the vegetation, revetment, and fences. Furthermore, it was clarified that these three elements created an atmosphere around the water channel and that this atmosphere played an important role in determining the impressions people have of the water channel landscape.
Integrating qualitative and spatial approach to identify human-landscape interaction in the Umbulan Water Spring, Pasuruan, East Java
Authors: Damayanti V D , Putra P T , Syahadat R M , Alfian R , Nailufar B , Leimona B
Published: June 2020

This study explored the relationship between users, i.e. the locals and visitors, and the Umbulan Water Spring landscape using analysis method that integrated spatial and qualitative approaches. The spatial analysis, which applied the scoring and weighting method was aimed to identify the physical landscape character of the site related to the suitability on the users’ activities. The qualitative method was conducted to explore the users’ perceptions of the site by applying interpretive research technique through in-depth interview. The result of the interview was thematically analyzed using the Cultural Value Models components as the deductive approach. The analysis outcome which elaborated the landscape physical character and perception showed that the users-site interaction led to the spatial misuse on the site throughout the time. Economy and social factors have likely driven this phenomenon. Furthermore, the two groups of participants had different perceptions which were influenced by their interests and place-bonding over the site.
The Biodiversity of Flora and Fauna in the Re-vegetation Area in The Post-Mining Area of Pongkor
Authors: Kusumoarto A , Gunawan A , Machfud  , Hikmat A
Published: June 2020

The Pongkor post-mining area is designated as one of the ecotourism areas in Bogor. This area has biodiversity of flora and fauna. This study aims to: (1) analysis the importance value index (IVI) of flora types; (2) analysis species richness index, species diversity index, and relative species abundance index; (3) analysis the beauty, the uniqueness and the rarity of the flora and fauna types. The method used in this research is quantitative descriptive. Based on the identification results, 185 species of flora are distributed in this region. During the rainy season, 15 species of herpetofauna were identified, 32 types of aves, and 4 types of mammals, while in the dry season 19 species of herpetofauna were identified, 23 types of aves, and 2 types of mammals. Based on the results of the analysis conducted on these flora and fauna, there are flora species that have high IVI values and some beautiful and unique flora species that are in the category of endangered species. Besides that, there are also fauna species which have a value of species richness index, species diversity index, and relative species abundance index, as well as some beautiful, unique, and fauna species that are in the category of endangered species.
Model Design of Traditional Settlement of Sasak Limbungan, East Lombok Regency, West Nusa Tenggara
Authors: Istiqamah  , Mugnisjah W Q , Gunawan A
Published: June 2020

Traditional settlements can be a form of identity of a community. Research on the Sasak Limbungan traditional residential garden has resulted in a residential garden design concept that is loaded with cultural values of the Sasak people and forms the basis for this research. This study aims to analyze and formulate the Sasak of Limbungan traditional settlement design concepts through identification of the characteristics of traditional settlements and the factors forming settlements, a study of the elements of settlements, layout, and symbolism, as well as a study of aspects of traditional settlement layout. The study used qualitative methods and took locations in Limbungan Hamlet, East Lombok. Data collection was carried out through interview techniques, library research, and field surveys. The results showed that the Limbungan traditional settlement had a cluster / group pattern. The formation of settlements is influenced by aspects of social coating, religion, and kinship ties. Forming elements of settlements consist of traditional Bale, Panteq, cages, courtyards, roads, fences, agricultural land, and mosques.
Study of Cultural Landscape Character in Gampong Lubuk Sukon, Aceh
Authors: Sari K P , Munandar A , Arifin N H S
Published: June 2020

Banda Aceh is one of the oldest Islamic cities in South East Asia that still highly value Islamic culture both in their landscape structure and community activities. In order to maintain the cultural values, in 2012 Aceh Government established Gampong Lubuk Sukon as a cultural tourism village. After being designated as a cultural tourism village, there are no preservation guidelines regarding the cultural landscape. This research is conducted to identify the landscape elements that formed the landscape character so it can be used to determine conservation actions. The method of this study is Landscape Character Assessment (LCA). LCA are the process of identifying and describing the elements and unique characteristics that formed the landscape and a tool which can make a significant contribution to the objectives that relate to ‘environmental protection’ of sustainable development. As a result, the character of Lubuk Sukon cultural landscape is the traditional settlement that depends on local natural resources (agriculture) with centralized spatial planning (tumpok). Based on the landscape character integrity, this study proposes a zoning for conservation management, namely the core zone for strict conservation to safeguard the character of cultural landscape, the development zone as an areas that can be developed to support cultural tourism, and the buffer zone to protect and barrier between inside and outside the village.
Evaluation of Thermal Comforts and Utilizations of Some Green Open Spaces in Cilegon City
Authors: Nuraini A , Budiarti T
Published: June 2020

Green Open Space (GOS) in urban areas is significant for the community and plays a role in improving the comfort of microclimate. There is very limited public GOS in Cilegon City, so the local government continues to increase the number of public green areas in each sub-district. Evaluation of thermal comfort and the utilization by the public’s in GOS of Cilegon City was essential for improving the quality and developing the green area in the city. This research was carried out in the Jogging Track Krakatau Junction (JKJ), Taman Kota Layak Anak (TLA), and Taman Kecamatan Jombang (TKJ), from March until June 2019. The research used descriptive qualitative methods (visitors’ perceptions and preferences) and quantitative methods (THI). The result showed that in JKJ, there were 50 species – 2462 trees which mostly have shaded function; in TLA, 14 species – 98 trees; and at TKJ, 39 species – 540 trees, both of those parks, the trees have shaded and aesthetic functions. JKJ is the best to reduce temperature; such as 2.4-3.7°C, then the second was TLA that 1.2-2.9°C; and TKJ 0.8-2.3°C. The average Thermal Humidity Index (THI) at JKJ was 27.6; then TLA was 28.0; JKJ was 28.3. These values were not comfortable, but mostly the visitors came to the three GOS in the morning or the afternoon. Thus 67-73% of respondents said that three GOS were comfortable, and 6-7% very comfortable at JKJ and TLA. The result of utilization of GOS according to user’s activities showed that JKJ was used for jogging/sports (55%), recreation (26%); TLA for recreation (47%), family gathering (38%); TKJ for recreation (67%). The others were used for playing with children, taking pictures, and shopping for a culinary delight. There were 60-73% of visitors expressed their satisfaction with the existence of GOS. Recommendation for improving GOS such as; 1) JKJ: Pruning the trees to reduce the humidity therefore THI is more comfortable; adding the ornamental plants in the welcome area, benches, trash cans, and planting food crops and vegetable crops at agricultural areas; 2) TLA and TKJ: Adding the shaded trees at children’s play areas and near the benches, some ornamental scrubs, and some benches.
Evaluation of Community-Based Tourism Village in Kaligono Village, Kaligesing District, Purworejo Regency
Authors: Pangesti D , Budiarti T
Published: June 2020

Tourism is a variety of recreation activities supported by facilities and services provided by the local community, fellow tourists, government, local government, and entrepreneurs. One of the sustainable tourism development principles is the local communities’ participation in tourism planning and management. Local communities, especially local people in tourist areas, are the key because they can provide attractions while determining the quality of tourism products. As a tourism village, Kaligono has diverse natural resource potentials and also local resources. The location of this study is Kaligono Village, Kaligesing District, Purworejo Regency, and was conducted from January to June 2019. The purpose of this study was to identify the potency of the rural landscape in developing village tourism, to identify the potency of socio-cultural in developing community-based tourism villages and to understand the perceptions and preferences of the Kaligono Village community towards the development of community-based tourism villages. The methods implemented were the analysis of suitability and tourist feasibility using the method of interview by questionnaire and observations, analyzing the perceptions and preferences of the community with interview method taken by stratified random sampling, analysis of Community Sustainability Assessment (CSA) using the interview method and SWOT. The results of this study are strategic recommendations for the sustainability of the community-based tourism villages in Kaligono Village, Kaligesing District.