bluuebunny/crossref_metadata_2025 huggingface dataset:
Understanding the interrelationship between electrical anisotropy and groundwater yield in a typical Basement Complex area
Authors: Adetola Sanuade Oluseun , David Oyeyemi Kehinde , Olayide Amosun Joel , Idowu Faloyo Jane , Sanmi Fagbemigun Tokunbo , Adesola Olaojo Abayomi
Published: October 2019

The rocks in the Basement Complexof southwestern Nigeria exhibit electrical anisotropy as a result of their heterogeneous nature caused by weathering, near-surface effects or presence of fractures. It is known that groundwater yield (Y) in a typical Basement Complex aquifers is related to its coefficient of anisotropy (λ). Therefore, it is essential to study the correlation between Y and λ in the basement complex. Ten (10) vertical electrical sounding (VES) points using Schlumberger array were studied in areas underlain by migmatite gneiss and quartzite rocks. The current electrode spacing (AB/2) varies from 1 m to a maximum spread length of 100 m. The quantitative interpretation of VES curves was done by using partial curve matching and computer assisted program called WinResist version 1.0 software. Dar Zarrouk parameters were estimated from the interpreted VES curves and thus coefficient of anisotropy (λ) was calculated from these parameters. Data on the groundwater yield at the VES points were also obtained. The results show that as λ increases, Y also increases with coefficient of correlation (R2) of 0.86 and 0.79 for migmatite gneiss and quartzite rocks respectively. To further investigate the relationship between Y andλ, a regression analysis was performed. The regression analysis that was performed on the dataset shows that λ contributes significantly to the regression models of the two rocks. The relationship between Y and λ reveals that groundwater yield could be predicted from the values of λ in a given locality.
Radiogenic Heat Model in the southern axis of Ogbomoso, SW Nigeria
Authors: Adagunodo T.A. , Bayowa O.G. , Ojoawo A.I. , Usikalu M.R. , Omeje M.
Published: October 2019

This study is aimed at estimating the radiogenic heat model in the southern part of Ogbomoso, Nigeria. In-situ measurements of activity concentrations of radioelements are randomly taken at seven locations. The individual data point is measured four times, while the average was recorded for accuracy. The results showed that the radiogenic heat produced per radionuclide varies from 28.71 to 143.55 ρW kg−1 for 238U; 89.60 to 217.60 ρW kg−1 for 232Th; 0.0010 to 0.0063 ρW kg−1 for 40K; with mean values of 73.83, 151.04 and 0.0033 ρW kg−1 for 238U, 232Th and 40K respectively. The total radiogenic heat production in the study area varies from 136.23 to 303.73 ρW kg−1, with mean value of 224.87 ρW kg−1. It is shown that thorium is the major contributor to the total heat generated in the study area. The study area is characterized by low heat production potential, which could be attributed to depletion of thorium and uranium in the geological rocks in the environs. Comprehensive radiometric survey to cover the entire city is recommended. This will help in characterization of the radiogenic heat produced per geological unit.
Investigating groundwater pollution at an open dumpsite using 2D geoelectrical resistivity imaging and vertical electrical sounding
Authors: Bakare K. M. , Aizebeokhai A. P. , Oyeyemi K. D.
Published: October 2019

Geoelectrical resistivity survey has been conducted within the Kurata dump site in Ota, south-western Nigeria. This present study focuses on the use of 2D resistivity imaging and Vertical Electrical Sounding to delineate conductive leachate point and degree of movement within the subsurface for conceivable groundwater pollution. The 2D resistivity survey was carried out using the ABEM Terrameter (SAS 1000/4000) System with multiple-gradient array electrode configuration. The Vertical Electrical Sounding was conducted using the schlumberger electrode configuration. One 2-D imaging profile of length 100m and one Vertical Electrical Sounding of length 200m were acquired on the established traverse. The resistivity data was inverted utilizing RES2DINV and WinResist to obtain the inverse model resistivity distribution. The 2D inverse resistivity models of the subsurface showed that the study site has a multi-layered aquifer system, four geoelectrical layers were inferred from the resistivity imaging and they are lateritic clay, clayey sand, sandy clay and coarse sand units. There is one aquifer system about 13 m which is highly polluted. The unpolluted aquifer system is localized around 19 m with inverted resistivity range 498Ωm – 685Ωm in the traverse. Also there might be conceivable sullying of deep groundwater system in the long term if appropriate moderation procedures are not thought about at the area.
Experimental evaluation of soil petrophysical attributes: Implications for sustainable agriculture
Authors: Oyeyemi K. D. , Aizebeokhia A. P. , Anake W. U. , Sanuade O. A. , Akinsiku A.A. , Olofinnade O. M. , Jonathan H.O. , Ayara W.A , Falade A. J.
Published: October 2019

Agriculture is man’s major supplier of his needs, particularly his primary need which is food. Soil is a major component for sustainable agriculture production needs to be studied and understood. Soil’s characteristics determine the type of crop that would grow and the nature of the yield of the crop. The area of study is Covenant University farmland, where twenty soil samples from the farm were collected and petrophysical parameters such as conductivity and salinity were analysed on each soil sample.
Radon Monitoring: Pathway to Environmental Sustainability
Authors: Usikalu M. R. , Achuka J. A. , Onumejor C. A. , Akinpelu A. , Omeje M.
Published: October 2019

One important dimension of environmental sustainability is the need to maintain ecosystem services critical to the human population. These services include providing food, shelter, and construction materials. It has been discovered that construction materials contain certain amount of radon. So humans are most susceptible to radon related problems because we spend at least one third of the day indoor. Maintaining environmental sustainability is crucial to attaining the Sustainable Development Goals (SDGs). Radon monitoring is essential in determining the actual level of exposure in buildings. The indoor radon concentration in Covenant University Centre for Research Innovation and Development (CUCRID) has been studied using RAD7 radon detector machine. The result fro the study revealed that the average cumulative radon concentration for the building is 16.15 Bqm−3
which is lower than the permissible recommended level. Hence, it can be concluded that the radon level in CUCRID building does not pose any risk level to the occupants therefore the environment is safe for workers.
Effect of low BAP Levels on Multiple Shoots Induction in Indigenous Nigerian Pumpkin (Cucurbita pepo Linn.)
Authors: Samuel Aworunse Oluwadurotimi , Voke Omasoro Regina , Soneye Bukola , Odun Obembe Olawole
Published: October 2019

Indigenous Nigerian pumpkin is a cucurbitaceous plant primarily grown in Southwestern Nigeria for its young leaves, which are relished as pleasant-tasting vegetable. In spite of its nutritional value, the plant is scarcely available compared to other vegetables. As a result, development of a rapid in vitro regeneration procedure is imperative to ensure all year round availability. The influence of 6-Benzylaminopurine (BAP) and 2,4-dichlorophenoxyacetic acid on multiple shoots induction from cotyledonary node explant of indigenous Nigerian pumpkin has been previously reported. However, the concentrations of BAP used may have been high, hence the inhibition of shoots formation on medium amended with plant growth regulators (PGRs). Can low concentrations of BAP alone elicit multiple shoots from cotyledonary node explant of indigenous Nigerian pumpkin? To ascertain this, we cultured cotyledonary node explants derived from 3-week-old in vitro grown seedlings for 8 weeks on Murashige and Skoog (MS) basal medium fortified with 0.35, 0.45 and 0.55 mg/L BAP. Medium without BAP (0.00 mg/L) was used as control. Mean number of shoots per explant was not statistically significant (P≤0.05) among the BAP concentrations employed except for control and medium augmented with 0.45 mg/L BAP. Medium fortified with 0.45 mg/L of BAP gave 3.25±0.921 shoots per explant and was therefore most effective for multiple shoots induction. The result showed that low levels of BAP were capable of inducing shoots formation from cotyledonary node explant of indigenous Nigerian pumpkin. Nevertheless, much lower BAP concentration than used in the present study should be investigated for the likelihood to elicit higher shoot responses.
Assessment of Particulate Matter (PM2.5) in Residential Staff Quarters of Covenant University, Nigeria
Authors: Oghenovo Itebimien , Benson Nsikak , Adedapo Adebusayo , Fred-Ahmadu Omowunmi
Published: October 2019

Over the years, the quality of outdoor air has received more attention than indoor air quality because people generally assume that only ambient air is polluted. Studies have shown that humans spend 70-80% of their time indoors, ranging from workplaces to homes. Based on the findings of these studies, outdoor exposure measurement is insufficient to estimate the total exposure of humans to particulate matter, PM2.5 pollution. The increasing interest of researchers and international bodies in indoor air quality evidenced in the study of different indoor pollutants, placing PM at the forefront. The air quality in the residential staff quarters of Covenant University was examined by taking continuous measurements from the indoor environment for three (3) days using standard sampling and analytical methods Air Ae Steward, an air quality monitoring device. The concentrations of PM2.5 in eleven (11) residential apartments were determined. The results indicate substantial indoor levels of PM2.5 with the highest and least mean values of 91.0±5.0 and 34.0±4.0 µg/m3 respectively.PM2.5 indoor concentration was found to be higher than the World Health Organisation guideline value of 25 µg/m3.Considering that inhabitants of these facilities spend more time indoors, appropriate ventilation systems would reduce health related risksassociated with PM2.5.
Background Radiation Dose in Selected X-Ray Facilities in Southwest Nigeria
Authors: Achuka J. A. , Usikalu M. R. , Aweda M. A. , Onumejor C. A. , Babarimisa I. O.
Published: October 2019

Radiation exposure monitoring is essential to ensure that dose limits are not exceeded. The goal of this study is to assess the level of radiation exposure from radiography facilities in the study environment in order to promote radiation safety. Digilert 200 was used to determine the level of exposure in and around radiography facilities in five X-ray diagnostic centres in southwest Nigeria. The mean background exposure in centres A, B, C, D and E were 0.137 µSv/h, 0.170 µSv/h, 0.164 µSv/h, 0.183 µSv/h and 0.148 µSv/h respectively. The cumulative mean exposure in a year for centres A, B, C, D and E were 0.961 mSv/y, 1.193 mSv/y, 1.146 mSv/y, 1.281 mSv/y and 1.034 mSv/y respectively. The background radiation dose from the exposure level in all the centres exceeded the recommended limit but for centre A. High quality standard lead shielding and periodic radiation protection monitoring should be employed in centres with high radiation exposure.
Design of a joint angle measurement system for the rotary joint of a robotic arm using an Incremental Rotary Encoder
Authors: Oguntosin Victoria , Akindele Ayoola
Published: October 2019

The design of a prototype system that measures the joint angles of the rotary joint of a robotic exoskeleton is presented in this work. An incremental rotary encoder is a sensor that can be connected to any rotary joint to measure the angle of rotation, speed of rotation, direction of rotation (clockwise or counter-clockwise motion) as well as the acceleration of a joint. The measurement system using a rotary encoder which generates an electrical signal either analog or digital according to the rotation movement was designed in this work. A prototype rotary joint having a 270° range of motion was fabricated with ABS plastic using 3D printing and then connected to an incremental rotary encoder to measure its speed and angle of motion. A robotic exoskeleton was then proposed to be used with the tested and developed measurement system.
Trends of Sputtering Parameters in Monte Carlo Simulations of Rare Gas Impingement of GaSb, AlSb and InSb
Authors: Oyewande Oluwole E , Babalola Israel B , Aizebeokhai A. P.
Published: October 2019

Binary alloys of Group III-V metals and metalloids, such as GaSb, InSb and AlSb, were recently found to be very promising spintronic materials. For such potentially innovative materials, the quantum spin properties of constituent electrons can be exploited, for better enhanced high-tech applications, than the particulate dynamics of the electrons as in current electronic device applications. Ion beam surface sputtering is a versatile tool for crystal and thin film growth in materials science and characterisation. Consequently, trends of some sputtering parameters were investigated through Monte Carlo simulations of the bombardment of the binary compounds GaSb, InSb and AlSb using Argon, Helium and Krypton ions. The sputtering parameters for the binary compounds were found to be inconsistent as the angle of incidence increased, which occurred for different ion and energy combinations. Also, the maximum sputtering yield did not occur at a particular angle but within a range of values, 65° -85° and 75°- 85° for ion energies 1keV and 10keV respectively. The sputtering yield was also found to increase with an increase in the ion energy.
Dimethylformamide-mediated synthesis and characterization of novel pyrazole- and pyrimidine-based 3,4-dihydropyrimidine-2(1H)-thione derivatives
Authors: Ajani Olayinka O. , Jolayemi Emmanuel G. , Owolabi Fisayo E. , Aderohunmu Damilola V. , Akinsiku Anuoluwa A. , Owoeye Felicia T.
Published: October 2019

Pyrimidine, an essential component of nucleic acid is currently reported for its potential application in Acquired Immune Deficiency Syndrome (AIDS) chemotherapy. Also, pyrazole nucleus, a versatile heterocyclic compound is gaining more attention in drug designs owing to its pharmacological therapeutic potentials. Hence, this present study deals with cost effective synthesis of 6-methyl-4-phenyl-5-(substituted-5-phenyl-4H-pyrazol-3-yl)-3,4-dihydropyrimidine-2(1H)-thione derivatives which are concisely known as pyrazole-based pyrimidine scaffolds. The multicomponent reaction of benzaldehyde, acetyl acetone and thiourea in the presence of catalytic amount of hydrochloric acid (HCl)ab initio produced 5-aceto-4-phenyl-2-thioxo-1,2,3,4-tetrahydropyrimidine, 1. Later, room temperature Claisen-Schmidt condensation of precursor 1 with diverse aromatic aldehydes which were benzaldehyde derivatives led to the formation of α,β-unsaturated carbonyl side chain, 2a-h. Finally, the thermal annellation through synthetic cyclization furnished crude products which were purified by recrystallization to afford 6-methyl-4-phenyl-5-(substituted-5-phenyl-4H-pyrazol-3-yl)-3,4-dihydropyrimidine-2(1H)-thione derivatives 3a-h in a cheap condition. The chemical structures were authenticated using IR, UV, 1H-NMR and 13C-NMR as well as analytical data. The final products 3a-h possessed good candidature for further investigation regarding their biological activities and pharmacological potential for new drug discovery.
Adsorption of lead ion from aqueous solution unto cellulose nanocrystal from cassava peel
Authors: Vivian Abiaziem Chioma , Bassey Williams Akan , Ibijoke Inegbenebor Adedayo , Theresa Onwordi Chionyedua , Osereme Ehi-Eromosele Cyril , Felicia Petrik Leslie
Published: October 2019

Acid hydrolysis was used for the synthesis of cellulose nanocrystal (CNC) from cassava peel (CP). The process was carried out at 450C for 45 min using 64% concentrated sulphuric acid, Pb2+ was removed from aqueous solution using the synthesized CNC adsorbent. Cassava peel cellulose nanocrystal (CPCNC) was characterised using FT-IR and X-Ray diffraction techniques. The different operational factors were examined to enhance the conditions for optimum adsorption of Pb2+. The equilibrium adsorption figures fitted well into both the Freundlich and Langmuir isotherm models, indicating that adsorption was due to the formation of a monolayer adsorption unto a homogenous surface and showed a good relationship between the Pb2+ and the CPCNC. The separation factor, RL, which is a dimensionless constant ranged between 0.02 and 0.248 and indicated that the adsorption was feasible and favourable. The optimum adsorption capacity was 6.4 mg Pb2+/g CNC at 25°C and pH 6. This study revealed that this novel nanomaterial has an unlimited prospect for effective removal of lead ion from aqueous solution.
Preparation and Characterisation of Cellulose Nanocrystal from Sugarcane Peels by XRD, SEM and CP/MAS 13C NMR
Authors: Vivian Abiaziem Chioma , Bassey Williams Akan , Ibijoke Inegbenebor Adedayo , Theresa Onwordi Chionyedua , Osereme Ehi-Eromosele Cyril , Felicia Petrik Leslie
Published: October 2019

Sugarcane peels are agro-waste resources discarded before taking the sugarcane juice. In the present study, cellulose nanocrystal was isolated from sugarcane peel by sulphuric acid hydrolysis. Two pretreatments, alkaline treatment and bleaching with acidified sodium chlorite, were applied. Sulphuric acid hydrolysis was performed at 450C for 45 min using 64% concentrated sulphuric acid. The resulting cellulose nanocrystal (CNC) of the sugarcane peel was characterised by studying the surface morphology using scanning electron microscope (SEM). X-ray diffraction (XRD) was studied to identify the crystalline nature of the CNC. CP/MAS 13C solid-state NMR was used to evaluate the purity and molecular structure of the CNC. The SEM image of the nanocrystal showed that the bundles of fibre were separated into individual CNC, with the size decreasing to a nanosize indicating an effective removal of the amorphous region. XRD diffraction pattern showed that the CNC possessed the cellulose crystalline configuration with crystallinity index of 99.2% and crystallite particle size dimension of 5.56 nm. The NMR spectra of the CNC revealed that all the signals have six carbon atoms of cellulose and the disappearance of several signals also indicated the disruption of the amorphous region. The results revealed effective synthesis of CNC from sugarcane peel, suggesting the leaching of the amorphous domain, apparent crystallinity and purity of the CNC. The cellulose nanocrystal prepared is considered to be a potent material for various industrial applications.
Sustainable locally sourced materials for small-scale paint production
Authors: Afolabi A.O. , Odunola M. , Ogundipe K.E. , Ajao A.M. , Ogunbayo B.F.
Published: October 2019

Volatile organic compounds (VOCs) and other unsafe chemicals are used in producing chemical paints which releaseharmful gases within the interior spaces where they have been used, whereas, these hazardous elements or components can be removed and replaced with safer and local materials. The aim of this study is to produce a paint product using sustainable locally sourced materials in a small-scale production. Using an experimental approach, a milk-based and clay-based paint were prepared in the laboratory, while physical and chemical tests were carried out such as adhesion test, application test, opacity, drying test, viscosity test and pH test. Clay, Edible starch, Local pigment (Lamp black and local talc), Dry milk and Lime were used as constituent materials in the preparation of the paint products with water as the solvent. Some of the physical and chemical tests carried fell within reasonable PMAN standards for chemical paints. The study recommendsthat more environmental friendly and sustainable materials should be used to replace hazardous materials used in chemical paints for safe environment.
CORROSION INHIBITION STUDY OF Cratevaadansonii PLANT EXTRACT ON MILD STEEL IN ACIDIC MEDIA
Authors: Olanrewaju Aladesuyi , Christiana Oluwatoyin Ajanaku , Ayodeji Anwo , Ezinne Okoro , Kolawole Oluseyi Ajanaku
Published: October 2019

A study on the inhibitive properties ofCratevaadansoniiplant extracts on mild steel in 1.75 M HCl was embarked upon in this research using gasometric and potentiodynamic polarization technique at room temperature. The mild steel coupons were immersed in blank of 1.75 M HCl and the procedure repeated for the various extract concentrations of 10% - 50% v/v. The amount of hydrogen gas evolved due to the reaction between acidic extract and the mild steel coupons were evaluated. The observed inhibition efficiency using gasometric method indicated a direct relationship with increase in concentration of the inhibitors up to 50% concentration for both extracts. A similar trend was observed in the Tafel plot using the polarization technique. The adsorption study revealed the use ofCratevaadansoniiextract obeyed the Freundlich isotherm which characterizes physisorption. The use ofCratevaadansoniiextractis hereby proposed a suitable inhibitor for the corrosion of mild steel in acidic media.
The Development and Challenges of Face Alignment Algorithms
Authors: Wang Congyi
Published: October 2019

A comprehensive survey of face alignment using different methods is presented in this paper. Face alignment is the fundamental task of facial applications, e.g., face recognition, 3D face modelling and face expression analysis, etc. State-of-the-art methods can be mainly categorized into the three groups: gradient descent-based, deep learning-based, and 3D model-based. In gradient descent-based methods, landmarks are localized and adjusted by solving a nonlinear regression function. Deep learning-based methods construct one or several cascaded neural networks to improve landmark localization accuracy. Beside the above two categories of methods solving problems on a 2D plane, there is also other category of methods like 3D model-based methods. Despite significant progress that has been made, face alignment faces challenges from real-world conditions: variation across poses, genders and ages, facial expressions, and facial attributes. This paper offers a brief illustration and analysis of several typical methods of face alignment, provides an overall understanding and insight into the field, which will motivate us to explore promising future directions.
Reconstructing spring sea ice concentration in the Chukchi Sea over recent centuries: insights into the application of the PIP25 index
Authors: Kim Jung-Hyun , Gal Jong-Ku , Jun Sang-Yoon , Smik Lukas , Kim Dahae , Belt Simon T , Park Kwangkyu , Shin Kyung-Hoon , Nam Seung-Il
Published: October 2019

In this study, we aimed to reconstruct spring (April–June) sea ice changes in the western Arctic Ocean over recent centuries (ca. the last 250 years) by measuring biomarker distributions in a multicore (ARA01B-03MUC) retrieved from the Chukchi Shelf region and to evaluate outcomes against known or modelled estimates of sea ice conditions. Specifically, we analyzed for the Arctic sea ice proxy IP25 and assessed the suitability of a further highly branched isoprenoid (HBI) lipid (HBI III), epi-brassicasterol, and dinosterol as complementary biomarkers for use with the so-called phytoplankton marker-IP25 index (PIP25; PIIIIP25, PBIP25, and PDIP25, respectively). The presence of IP25 throughout core ARA01B-03MUC confirms the occurrence of seasonal sea ice at the study site over recent centuries. From a semi-quantitative perspective, all three PIP25 indices gave different trends, with some dependence on the balance factor c, a term used in the calculation of the PIP25 index. PIIIIP25-derived spring sea ice concentration (SpSIC) estimates using a c value of 0.63, determined previously from analysis of Barents Sea surface sediments, were likely most reliable, since SpSIC values were high throughout the record (SpSIC > 78%), consistent with the modern context for the Chukchi Sea and the mean SpSIC record of the 41 CMIP5 climate models over recent centuries. PBIP25-based SpSIC estimates were also high (SpSIC 108%−127%), albeit somewhat over-estimated, when using a c value of 0.023 obtained from a pan-Arctic distribution of surface sediments. In contrast, PDIP25 values using a pan-Arctic c value of 0.11, and PIP25 data based on the mean biomarker concentrations from ARA01B-03MUC, largely underestimated sea ice conditions (SpSIC as low as 13%), and exhibited poor agreement with instrumental records or model outputs. On the other hand, PBIP25 values using a c factor based on mean IP25 and epi-brassicasterol concentrations exhibited a decline towards the core top, which resembled recent decreasing changes in summer sea ice conditions for the Chukchi Sea; however, further work is needed to test the broader spatial generality of this observation.
An insight on Surabaya development: pre colonials, colonial, post colonial and current era
Authors: Pamungkas A , Iranata D , Yuwono J , Jaelani L M
Published: October 2019

Surabaya is the second biggest metropolitan of Indonesia. Its rapid development has established from the northern part to the south. The city has transformed from an emerging industrial city into business and trading city. However, the city is also facing escalating risks and challenges. Therefore, a pressure of development becomes intense which requiring a more careful approach to achieve a desired future sustainable Surabaya. In responding to that, special concerns about making Surabaya more resilience especially to disasters, creating an effective waterfront development management for the city and designing Surabaya as a compact city are keys to a better Surabaya in the future.
Constructing Input-Output (I-O) models from less than perfect datasets: an economic impact analysis of garage construction project in Gresik, East Java Province, Indonesia
Authors: Irawan A , Satiawan P R
Published: October 2019

This paper demonstrates techniques to construct input-output (I-O) models to perform impact analysis under a situation of data limitation. Of policy makers’ main interests regarding project proposals is to have some idea on the economic impact of the projects. I-O based model is an useful analytical tool to do impact analysis. However, the I-O table from which the analysis is based on is often not available for the region of interest, in this case, Gresik, a municipal in East Java. This paper shows how to derive the I-O table for Gresik out of the East Java’s I-O table with four approaches, namely: 1) location quotient (LQ); 2) cross-industry location quotient (CIQ); 3) Flegg location quotient (FLQ); and 4) augmented Flegg location quotient (AFLQ). We suggest that these approaches are suitable for a situation facing time and cost constraints, which is a typical one in city/municipal-level policy domain.
The study of Larantuka urban infrastructure service level to accommodate the connectivity of surrounding islands
Authors: Gai A M , Endarwati M C , Lamapaha A R T O
Published: October 2019

Infrastructure is important and as a solution to the problem of high price disparity and the inequality in the percentage of GDP product value nationally, in particular, in the western and eastern regions of Indonesia which have been a challenge that needs to be overcome. East Flores regency is one of the islands in the Eastern Indonesia, precisely in East Nusa Tenggara with Larantuka as its capital. This area is facing problems related to low quality strategic infrastructure and inadequate regional transportation infrastructure. This study aims to assess urban infrastructure service level in Larantuka to accommodate the connectivity of surrounding islands. This study used Linkage, Integrate Rural Accessibility Planning, and Importance Performance Analysis as the methods. The results showed that there is a connection between road infrastructure and the port as well as airport. In addition, there is a connection between marine infrastructure (collection ports) and local feeder ports in the surrounding islands and a connection between spoke airport infrastructure (air) and the hub airport. The condition of urban infrastructure in Larantuka is considered “good,” with service level of; “less satisfactory” for land infrastructure and “somewhat satisfactory” for air and sea infrastructure.
Sustainable pedestrian ways in Central Business District of Tunjungan Surabaya: Can principles of new urbanism be applied?
Authors: Navastara A M , Mandasari V
Published: October 2019

Pedestrian ways of Tunjungan which is known as Central Business District is an important accessibility element in Surabaya. According to Guidelines for the Provision and Utilization of Pedestrian Infrastructure and Facilities in Urban Area (2014), pedestrian ways is important component that should be provided for increasing effectiveness of citizen mobility in urban area. In general fact, pedestrian ways of Surabaya is in good condition. In 2007 Surabaya has received Wahana Tata Nugraha Award from The Ministry of Transportation. It has been avowed that pedestrian ways of Surabaya is first ranked of 20 cities in Indonesia (Detiknews, 2007). However pedestrian ways in Surabaya especially in Tunjungan district frequently misused (Kompas, 2010). That condition shows unmaximize use of pedestrian ways in this district. Objectives: This study will focus on LOS (Level of Service) to determine walkability in Tunjungan. Hereafter, value ranking of this LOS and what solution should be done will be confirmed to an expert. Finally, the concept of walkable city will be determined based on solution of LOS characteristic. Expected output in this study is alternative concept of sustainable pedestrian ways. It will be influenced by factors which are decided by some stakeholders. Finally, the concept of walkable city will be determined based on solution of LOS characteristic.
Multi Automated Guided Vehicle (AGV) cardboard carrier using wireless communication
Authors: Putra B E , Arfianto A Z , Subiyanto L , Putra Z M A , Hasin M K , Utari D A , Rahmat M B , Hidayat D , Taali M , Lusiandri A Y , Ardhana V Y P
Published: October 2019

This paper presents Automated Guided Vehicle (AGV) to move cardboard from one place to another using modul communication method as communication medium between AGV. In previous agv usage agv operation is done automatically with human monitoring to allow agv to operate within its working area and no accident occurs between agv. In this study, the input signal value of the received signal strength indicator (RSSI) method is used to control and regulate the alternate workspace. The test results show that the use of the received signal strength indicator (RSSI) method can optimize AGV work with work orders that are run interchangeably when some agv go to the same point. Furthermore, Line Follower system can accelerate the operation of Automated Guided Vehicle (AGV) on the determination of the operation path.
Analysis of air quality influenced by traffic density using web based geographic information system (Study case: Central Surabaya)
Authors: Sukojo B M , Zulfa M
Published: October 2019

Central Surabaya is a city center where there are a lot of shopping centre and office buildings which populate the street. High traffic rate increases air pollution caused by motor vehicle, thus resulting in bad air quality for health. Carbon emission that has the biggest effect is CO and CO2, which can amplify global warming rate. The process of air quality monitoring itself, however, lacks a lot of things, especially in keeping data log and information delivery, causing inequal information spread for citizen about air pollution in Surabaya. Geographic Information System (GIS) technology, which is served in web platform, is one way to assist information delivery to Surabaya citizen about the air quality. The result of this study shows that the air quality is still good and doesn’t go beyond the threshold of national ambient air quality. Primary arterial road category, Jalan Diponegoro, has highest emission rate of 1635.64 ton/year CO and 35516.32 ton/year CO2 caused by high volume of vehicle, which is 285388 smp/hour. For secondary arterial road category, Jalan Raya Darmo, has highest emission rate of 1491.72 ton/year CO and 31155.44 ton/year CO2 caused by vehicle 732395 smp/hour vehicle. Result of this study is served in web platform.
Neighbourhood space for formal housing based on social cohesion in Jember Region
Authors: Koesoemawati D J , Yuswadi H , Ratnaningsih A , Alfiah R , Firmansyah M
Published: October 2019

Nowadays “community without closeness” does exist and makes the closeness to space is no longer important for social relations such as in formal housing in Jember Region. The housing area in Jember Region divided into two types, such as high density housing and low density housing which are influenced by their type of house. Qualitative analysis method that is used in this research are synchronic reading and typology. Synchronic analysis technique based on maps, observation, and interview to several source and used in this research to describe settlement pattern. In the fact, the community who live in formal housing prefer to spend their time in home without paying attention the socialization with their neighbourhood and using public open spaces. It makes segregation and weaken the social cohesion. Therefore, this research is needed to provide a social model of environmental space based on social interaction patterns and location points of interaction in low and high density formal housing in Jember region. Based on the result, it is known that the developer need to designing enclave on formal housing road spaces that are used for social interaction and control each other in housing security, according to the concept of defensible space and neighbourhood space model namely “Enclave Transpatial”
Smart economy for coastal resource management in Surabaya City
Authors: Rahmawati D , Arvitrida N I , Lastomo D , Kusnadi  , Rindawati
Published: October 2019

Smart economy as a part of smart city concept has been emerging in recent years to promote urban growth. It infuses digital infrastructure in the economic activities, not only to organize the flow of finance or information but also the production and distribution of goods. This paper provides a review of smart economy concept for coastal resource management in a large coastal city in Indonesia. Surabaya is taken as a case as it is the second largest city in Indonesia with abundant fisheries resources. However, these resources are vulnerable due to the dynamic urban demand and pressures. The approach used in this study considers the supply chain aspects of fishery commodities, involving supply and demand characteristics, the chain of distributions, and the price variation along the supply chain. In addition to the literature review, an evidence-based study is also presented by considering the Indonesian government program in managing the national fisheries logistic system. This paper offers two-fold contributions. It shows the urgency in promoting smart economy concepts in coastal resources in coastal cities and the importance for determining a suitable concept of supply chain management practice and digital prototype design of fisheries resources management as instruments of smart economy concepts.
The impact of fiscal decentralization on economic performance in Indonesia
Authors: Setiawan F , Aritenang A F
Published: October 2019

Regional studies literature argues that neighboring regions could impact each others’ economic performance trough trade, technology diffusion, capital flow, and political stability. However, the emergence of decentralization has put the above argument into a new context. This study aims to explain the impact of fiscal decentralization on economic. The study analyse the impact of fiscal decentralization using lag value and ignores the existence of spatial dependency between regions. Our study concludes that the fiscal decentralization has a significant effect on economic performance at a lag value of 3 years, implying that public budgeting will have a significant impact on increasing economic performance on 3 years later. In addition, the paper provides evidence that regions with similar economic performance are located nearby suggesting the presence of spatial dependence.
Creating cultural and heritage tourism route as tool for development tourism strategy (Case study: Surabaya Kalimas River Area)
Authors: Idajati H , Nugroho F E
Published: October 2019

Tourism routes have gained prominence in recent years and have greater pulling over potential to entice visitors to spend time and money. Route development in Indonesia has not grown enough, which makes visitor confused about tourism objects as well as the accessibility. However, Surabaya as the second biggest city in Indonesia attracts domestic and foreign tourists to cultural and heritage objects, especially in Kalimas River area. However, tourist in Surabaya have a limited time to stay which less than a day then visits another attraction outsite the city. Poor accessibility within the city also contributes to the problem. Based on the potential and problems above, the research aim is to identify the potential route connecting tourists with cultural and historical attractions through increased the tourist mobility. This qualitative research used the theoretical descriptive analysis to find specific criteria and the formation of pathways, then descriptive analysis to determine the implementation strategy. The results were that six route groups identified based on relationship of each tourism object criteria and the accessibility between them. To implement the route, strongly need to improve the public transportation and its supporting facilities.
Reclaiming public space in Avenida dos Aliados: an ethnographic approach in the way society perceptualize their ideal public space
Authors: Tucunan K P , Lopes J T
Published: October 2019

The public space in Europe has been subjected to the major revitalizations in attempt to lifting the socio-economic value of the city centre as well as Avenida dos Aliados. In the urban planning concepts the interventions to achieve public space as medium has an specific terminology which is “ sense of place”. It is a design concepts for a place to ensure that every public space able to have identity and a distinctive character to the area and igniting the interactions among the people. Using ethnography as a method, This study give insights to the the definition of the public space according to the people perceptions, comparison of the quality of an Avenida dos Aliados as a public space after the revitalization and also highlighting what nowaday’s society expected for a public space in Avenida dos Aliados. In order to reclaimed the public space, the society highlighting there is need to include art components (like local artist and creative ornaments), historical information about the city, developing green space, involving technology to stimulate the interaction and prolonged stay, creating inclusive facilities (like games, facility for kids, etc.), and also develop local market in the Avenida dos Aliados.
The application of environmental management system based on ISO 14001 in Brawijaya Malang University
Authors: Sari K E , Kamalia S
Published: October 2019

Universitas Brawijaya (UB) Malang is one of the universities in Indonesia that having the issue of decreasing environmental quality prompted the Rector of UB to put the problem into the University’s agenda. To solve this problem, UB plans to apply international standards to support the sustainability of the University, which includes implementing an environmental management system known as ISO 14001 by using Importance-Performance Analysis (IPA) analysis, AHP analysis (Analitycal Hierarcy Process). The first objective in this study is to find out the management’s condition on the readiness of the academic community to evaluate the success of the application of ISO 1400 in UB and the second objectives is to produce the extent of preparedness and progress in planning related to ISO 14001 management systems in UB. The results shows that it can be concluded that the current implementation of the environmental management system at UB still lacks the principles of ISO 14001. One of the principles in ISO 14001 that has not been applied at the University indicates lack of preparedness in a University can be seen in the lack of documentation and communication of management policies and commitments on environmental management systems.
Making the connection between accessibility and travel behaviour in university setting (Case study: Babarsari Area, Yogyakarta)
Authors: Devi M K , Fitria L M , Roychansyah M S , Herwangi Y
Published: October 2019

Higher education in Indonesia, particularly Yogyakarta as City of Education, is continuously growing. Babarsari is one of higher education area with rapid growth and development in Yogyakarta. This area is surrounded by several universities which then form the agglomeration of higher education area. The influence of new activities as a growth pole like this educational activity has led to rapid change on land use and people’s activity. This encourages the potential for high daily movement, especially the movement of students who are the dominant actors in this area. The majority of students are live near the university. However, this not lead to higher use of sustainable modes in this area. This paper tried to reveal the connection between accessibility and travel behaviour in university area. By using samples from three universities in this area (Atma Jaya University, STTNAS Yogyakarta, and UPN Veteran Yogyakarta), result shows that living in university surrounded area did not ensure students to have sustainable travel behaviour, particularly for their campus travel. The lack of non-motorized transport facilities is indicated as the main barrier for students to travel in more sustainable way.
Placement of Ambarawa Railway Station in city spatial planning
Authors: Solikhah N
Published: October 2019

The construction of the Ambarawa (Willem I) - Kedungjati railway line by the Nederlandsch Indische Spoorweg Maatschappij (NISM) is for military purposes and the transportation of the plantations of the Dutch colonial government so that it was significant to study. The successful placement of the train station is supported by the structural quality of the station building that was built as well as the city/regional focal point. Then in the development of the regional spatial structure allows a shift in the role of the land route where the railway station building is located.This study aims to examine the placement of Railway Stations in the City Spatial Plan on the Ambarawa-Kedungjati Line because at present the Ambarawa train station still has a strong role because it is the starting point for the development of the city which produces a variety of morphological spatial expressions in the form of a compact form of square shape and Urban sprawl in the form of linear development. The results of the study can be taken into consideration in the planning of the area where the railway station building is placed in line with the development of the city and or district layout.
Travel behavior of urban kampong residents and formal housing residents for shopping activity: Case of Yogyakarta City
Authors: Dewi N L P H , Herwangi Y
Published: October 2019

Shopping is one of the important activities that is carried out by the residents to meet their daily needs. It also has some relationship with the built environment condition around the resident’s houses. If the residential area cannot provide the needs of the residents, then the residents will travel out of the residential area, especially using private vehicle. Yogyakarta is one of the city in Indonesia which has a type of settlement that can support sustainable development by increasing pedestrian trips. On the other hand, the number of private vehicles in Yogyakarta always increase year by year. Therefore, the aim of this study is to identify the travel behavior for shopping activity at two kinds of urban settlement which have some differences in their built environment condition. This study is conducted by quantitative method with data collection using questionnaires and it is assisted by field observation. The result of this analysis using Mann Withney U-test shows that there are some differences of shopping travel behavior between urban kampong residents and formal housing residents. However, the chi-square test shows some weak relationships between travel behavior and built environment. In the other words, built environment does not significantly affects the shopping travels in Yogyakarta city, as well as many developed theories.
Analysis on calculation of Vehicle Operating Cost (VOC) at Gejayan intersection before and after fly over ring road operation in Yogyakarta
Authors: Wibisono R E , Cahyono M S D , Muhtadi A
Published: October 2019

Gejayan intersection is located in Sleman Regency of Yogyakarta. Fly Over will be constructed at the intersection in the ring road of Yogyakarta. The nearest intersection to the east is Gejayan Intersection with a distance of 1573.11 meters. Gejayan intersection performance in 2018 has reached saturation by having Level of Service E. The more severe conditions will occur in the next 10-20 years. If it is planned using Fly Over on the ring road in Yogyakarta connecting Gejayan intersection, the vehicles flow must have other alternative by road widening. The most important step is to predict the Vehicle Operating Costs (VOC). After the Fly Over operation, VOC can be calculated to determine the cost saving. The scenario to predict VOC was 80% of vehicle volume would pass the Fly Over, and the 20% would still use the existing road. The results showed that the cost saving of Vehicle Operating Costs (VOC) of the existing road compared to the fly over use in 2019 was IDR 37,941,324,952. In 2039 the saving would be IDR 240,232,694,488. If the road was only widened, the cost saving of VOC in 2019 would be IDR 9,084,204923 and in 2039 would be IDR 72,107,188,198.
Qualitative comparative assessment by fsQCA for Transit Oriented Development (TOD) area comparison
Authors: Nurlaela S , Nadyla A , Zuhdi A Y , Handayeni K D M E , Fakhrianto I , Nurkhariza A R , Yusuf L
Published: October 2019

The station development through transit oriented development principles in favor to transit patronage has emphasized the important of design, diversity and density. However, studies were lacking in identification of the level of combination of all these ingredients toward increasing ridership. Using the node-place balance perspective, the design, diversity and density are re-evaluated. Four transit terminals or stations are used as case study in the City of Surabaya. Each of the transit area is divided into several zones/subzones to evaluate the level of density, diversity and design into the value of node and place index. Each transit points would be regarded as having one among the five categories of node-place index. The level of the daily trip demand is identified as the target variable. Qualitative comparative analysis then is used to mapping the position of each station, suggested the level of combination of design, diversity and density in each node-place category, to explore which combinations that are found to be statistically significant to support the increases of trip demand. The research showed that employment density may has more impact than housing density, while node aspect maybe of more important compare to place aspect that explain high or low trip demand.