bluuebunny/crossref_metadata_2025 huggingface dataset:
Upon the efficiency of gear transmissions
Authors: Alaci S , Ciornei F C , Pentiuc R D , Ciornei M C , Românu I C
Published: January 2020

The work proposes an experimental method and device for finding the efficiency of the spur gear mechanism. A simple device that can measure the work lost by friction only in teeth contacts was constructed. The test rig was designed to ensure measurements for two configurations with the same inertial characteristics but for different gear friction conditions. The principle is based on the difference of energy losses for the two mounting cases that provides the energy lost by friction between flanks. Recording the variation of the decreasing rotational speed for the case of constant actuating torque, the frictional losses can be deduced. The values of the efficiency obtained are smaller than in literature. The method is simple and rapid and the experimental results validate the theoretical model.
Nonuniform stability in mean-square for stochastic differential equations in Hilbert spaces
Authors: Stoica D M
Published: January 2020

In this paper we study the relation between the nonuniform stability in mean square and admissibility of stochastic differential equation in Hilbert spaces. We consider an adapted norms and thus we obtain a variant for the stochastic case of nonuniform exponential stability in mean square due to in deterministic case. In the qualitative theory of evolution equations, nonuniform exponential stability is one the most important asymptotic properties and in last years it was treated from various perspectives The main objective is to give a more general concept of nonuniform exponential stability in mean square of stochastic differential equations in Hilbert spaces.
Contributions for increasing the CuZnPb brass durability to cavitation erosion
Authors: Lazar I , Salcianu C L , Bordeasu I , Popoviciu M O , Hluscu M , Pirvulescu L D , Malaimare G , Badarau R
Published: January 2020

Among the materials, often used in manufacturing details subjected to cavitation erosion, such as pump impellers, propellers, fittings, valves body, etc. there are also CuZnPb brasses. Their use in molded or laminated condition, for pieces subjected to cavitation, is of short duration due to degradation through the erosion. For this reason, any method of increasing the extension of life, is beneficial. In this direction are enrolled also the results obtained in this paper, obtained by the cavitation tests made on CuZn39Pb3 brass, subjected to three the volumetric heat treatment regimes. Appreciation of cavitation resistance, of each treatment regime, is based on the evolution of average durability

δ
¯

c
a
v

defined by K.Steller. The research program, conducted on the standard vibration device with piezo ceramic crystals, in the Cavitation Laboratory of the Polytechnic University of Timisoara, shows that the best results are offered by hardening treatment.
Causes analysis of occurrence of the terrain surface discontinuous deformations of a linear type
Authors: Orwat J
Published: January 2020

In the article some area located in the mining terrain of hard coal mine in Poland has been analysed. In this area the discontinuous deformations of a linear type, for example faults and ground steps have been occurred. They had the substantial dimensions and appeared near or under the residential buildings. That’s why they are so dangerous. In this paper the causes of their occurrence have been analysed. Probably a main reason of their creation is an intensive, underground mining exploitation which in two hard coal seams has been carried out. These seams were located at a relatively small depth, inclined at a significant angle, exploited by the use of a longwall system with a roof rocks cave-in and had a considerable thickness. All of these things contributed to accumulation of the adverse stresses concentrated in one area. Release of stresses caused by an extraction of hard coal contributed to the formation of numerous faults.
Braking mechanism for profile rolling mill cooling bed. Analysis and operation
Authors: Ardelean M , Ardelean E , Josan A , Socalici V
Published: January 2020

This paper presents the braking mechanism which are part from construction of rake tip cooling bed for small rolled product, and it is analyzed the kinematics of this mechanism. Purpose of this study it was to determine the movement law and other kinematics parameters of effecter elements of brake mechanism. This is required because in operation of the cooling bed, several mechanisms operate simultaneously, so it can must be optimized the operation of this complex equipment. Mechanism has two effector the elements, first effector element that elevates laminate of cooling bed surfaces, respectively, the second effecter element that moves transversely laminate to the cooling bed. Through these movements, rolled products are moved step by step, towards to delivering live roller table.
Adaptive intelligence system for a predictive process for the Industry 4.0 in Tobacco factory
Authors: Latinovic T , Barz C , Vadean A Pop , Sikanjic G , Sikman L
Published: January 2020

Speaking of the biggest innovations for the manufacturing industry of the day, we are talking about intelligent production systems with “self-aware”, “self-contemplative and” self-sustaining “capabilities. Building such an intelligent system that is adapted and predictable provides the aforementioned capabilities in production, processes and machines. The intelligent system is able to combine various technologies and techniques for mixing statistical data, data, and artificial intelligence methods. Cigarette production is selected because it is highly serial. In such production, the use of expert systems in quality management in this area is not sufficiently developed, and with direct management, it generates great savings. Mistakes and errors are inversely proportional to productivity. This paper deals with the application of an intelligent system that uses the key principle of lean production. We need to build an adaptive system for predictive error and reduce the machine’s failure time in the cigarette industry.
Exact solution for the severity of transverse cracks in prismatic beams
Authors: Tufisi C , Gillich G R , Hamat C O , Biro I , Gillich N , Nedelcu D
Published: January 2020

We propose herein a mathematical relation to calculate the severity of transverse cracks which affect a prismatic beam. It is known that the damage severity depends on the depth of the crack located at the slice on which the biggest bending moment is achieved. The frequency drop due to this crack is proportional to the severity associated with it. For all other crack locations, the effect is diminished in relation to the curvature registered at the affected slice. It is essential to obtain a relationship to correctly express the severity with respect to the crack depth. To find it, we designed a model of a cantilever beam with cracks located near the fixed end. We observed that the deflection of the beam’s free end increases the closer the crack to the fixed end is, but after a certain limit, the deflection decreases. We concluded that the deflection decrease occurs because the deformation around the crack is restricted by the fixing condition. To find the true severity, we derived the pseudo-severity for six crack positions and estimate the severity using the linear and second-order polynomial regression curves. Next, we used twelve points for interpolation and found a very similar severity. Finally, we performed modal analysis for the beam with cracks at different positions and found the mathematical relation developed to predict frequency changes that involves the severity provides accurate results.
A comparative study between photogrammetry and laser technology applied on model turbine blades
Authors: Nedelcu D , Gillich G R , Gerocs A , Padurean I
Published: January 2020

The objective of the paper is to apply the reverse engineering in the mechanical field to reconstruct the geometry of two types of model turbine blade: axial blade and Pelton bucket. To generate the point clouds, the geometry of the blades was scanned by laser and digital photogrammetry. The Creaform HandySCAN 700 laser scanner and VXelements software were used to get the point cloud of the blades. For digital photogrammetry the NIKON D610 photo device and Agisoft Photoscan software were used to get the point cloud of the blades. Finally, the point clouds generated were compared in GOM Inspect software to highlight the deviations between them.
Ellipsometric determination of the thickness and the refractive index of superficial films deposited on metal mirrors
Authors: Berdie A D , Jitian S
Published: January 2020

Ellipsometry is an optical method that allows very accurate determination of the optical constants of surfaces or determination of the thickness and optical constants of superficial films on solid substrates. If the determination of the optical characteristics of transparent superficial films is relatively simple, at least two ellipsometric measurements are required for optically absorbent films: at two different angles of incidence or using two different incidence media. This involves additional problems with errors related to the realignment of the ellipsometer. Ways to obtain the thicknesses and optical constants for thin or thick transparent or non-transparent superficial films are presented. A simple graphical method is presented to determine the thicknesses and optical constants of thin absorbent films with non-uniform thickness.
The construction of an automated bicycle parking
Authors: Labudzki R , Patalas A , Talar R , Szadkowska D , Wierzbicka N , Zawadzki P
Published: January 2020

Nowadays, the bike is so common and popular that with the development of technology, man began to create all kinds of facilities for this mode of transport. On the market you can find various modifications and special-purpose accessories created for the bike. One of these amenities are special parking spaces for bicycles. They were created in order to facilitate its detention by people who do not have such a possibility in homes or to provide a specially adapted place to temporarily leave it during the day. The paper presents a proposal for the construction of an automated bicycle parking based on the geometry of the circle.
Dynamic circulation in curve with R = 300 m radius for C.F.R. 060 - EA 5100kW electric locomotive
Authors: Ursu-Neamţ G V
Published: January 2020

In the paper we study the dynamic circulation in curve with 300 m radius of rail for C.F.R. 060-EA 5100kW electric locomotive. This study verifies simultaneous disposition of bogies in diagonal, intermediary and string positions through determination of dependences for lead forces, guide forces, centrifugal forces and of polar distance towards speed. We also verify safety against derailment, and we determine maximum circulation speed admitted in curve.
Analytical investigation of an inertial propulsion system using rotating masses
Authors: Gerocs A , Korka Z I , Biró I , Cojocaru V
Published: January 2020

The paper proposes an inertial system capable of generating a propulsive force from the rotation on an eccentric circular path of 8 steel balls placed between two rotating discs constructed with a radial slot system. In addition to a detailed description of the mechanical components of this proposed device, particular attention is paid to the theoretical treatment of the innovative principle upon which the device is based. The paper begins by detailing the equations of motion of the steel balls, from which the propulsion force of the system is computed. Furthermore, the influence of the ball radius on the propulsion force is investigated. The obtained findings support the capability of the proposed system to achieve a linear propulsive force.
The power chopper with forced extinguish and command realized with FPGA
Authors: Baciu I , Cunţan C D , Gherman P L
Published: January 2020

This paper presents the operation of a chopper power with forced extinguish of reactive RC circuit whose control is obtained from a FPGA board (Nexis4DDR) for the adjustment of the frequency of the control software of the thyristors. Control signals for the two thyristors are obtained by dividing the clock frequency of the FPGA board which controls a 2-bit counter circuit made with flip-flops. The output of the FPGA board is connected to a current amplifying circuit realized with bipolar transistors in Darlington connection and a circuit for the galvanic separation with the pulse transformers and power supplies for opening the thyristor. The maximum frequency command value is limited by the recovery time of the main thyristor.
Researching and modelling of unbalanced regimes in systems of household electric power consumers
Authors: Miroshnyk O , Kovalyshyn S , Bałdowska-Witos P , Kruszelnicka W , Tomporowski A
Published: January 2020

The modelling of the operation modes of the 0.38/0.22 kV power supply systems by the Monte Carlo method using the Electronics Workbench computer program is considered, and statistical processing of simulation results and testing of the Pearson distribution law hypothesis using the Mathcad program are carried out. An analysis of existing power supply systems has been carried out and an alternative, economically feasible version of the power supply system is proposed, where consumers are powered by low power transformers mounted on supports. The performed studies showed that the variation of the load currents in the segments and the losses of electric energy in an asymmetrically loaded network of 0.38/0.22 kV are subject to the normal distribution law and that the consumers who feed on the traditional power supply system have unsatisfactory quality of electrical energy.
Testing the functionality of the safety belts of road vehicles in the production process phase
Authors: Alexa V , Cioată V G , Raţiu S A , Dascăl A A
Published: January 2020

The safety belt is an essential element of the concept of passive safety of road vehicles (passenger transport). The functionality of seat belts is an imperative requirement for road vehicle manufacturers, requiring analyses and tests from the design stage. The present paper proposes a review of the retractor-shutter assembly during the production process phase in order to increase the quality and eliminate the manufacturing defects.
Study of the contact forces between workpiece and fixture using dynamic analysis
Authors: Cioată V G , Kiss I , Alexa V , Raţiu S A
Published: January 2020

In the machining process, the workpieces are installed in machining devices in order to establish a strictly determined position with the cutting tool or its trajectory. During the cutting process, the weight of the workpiece, the forces and moments of inertia, cutting forces and moments, clamping forces, the heat released during the cutting process determine the contact forces between the locators and the workpiece. The magnitude of these forces is important because too large value can destroy the surface of the workpiece, and a too small value can cause the workpiece to slip on the locators or even the loss of the contact with the workpiece. Both situations must be avoided. In the paper is presented a study regarding the determination of the magnitude of the contact forces in dynamic condition using dynamic analysis realized with a CAE software.
Experimental design investigation of through-transmission laser welding of dissimilar polymers
Authors: Ilie M , Stoica V , Cicala E , Kneip J C
Published: January 2020

In the present study, the laser weldability of several types of dissimilar polymers couples are investigated using the experimental design method. This experimental strategy allowed to quantify the influence of the operating parameters on the failure force of the welded specimens. Some preliminary tests were used in order to find the initial conditions for the design of the experimental matrices. Based on the conclusions drawn from these preliminary tests, exploratory experimental designs were used to advance towards the optimum for each couple of polymeric materials. The polymeric materials considered were: ABS and PA11 with different pigments and thickness. One could note that the laser power used is the most important parameter on the mechanical resistance and the weldability is assured in a narrow interval of power laser. An important clamping pressure and two laser passages are useful to improve the performances of the weld strength.
Case studies for automotive components using CAD and CAE techniques
Authors: Stroia M D , Moşteanu D E , Virca I , Răduca E , Popescu C , Haţiegan C
Published: January 2020

In the present paper we present model of 3D components, parts of power supply system found in automobiles. 3D designs of components are obtained using modern techniques of computer systems which implies the means of CAD software. Following components designing, an analysis of obtained models was made, considering static, mechanical and thermal stresses. These studies were made by means of numerical simulation, using CAE techniques, and have the purpose of optimizing geometrical shapes of designed components in the terms of their weight, in the same time maintaining their mechanical and electrical characteristics. From weight optimizing of automotive components ensues significant savings of material and energy consumption, this being a sensitive topic in automotive industry, whether we talk about classical, electrical or hybrid automobiles. Modelling and simulation was made using finite element analysis of SolidWorks2010 software and the obtained results could be used in the process of part production from automotive.
Testing of electrical parameters at direct start-up of a synchronous motor of 4650 kW/6 kV
Authors: Răduca E , Haţiegan C , Molnar M , Anghel D , Stroia M D , Liuba G
Published: January 2020

The paper presents parameter testing in the transitory process of direct start-up of a synchronous motor of 4650kW/6kV used in actuating of natural gas compressors from storing stations. The electric drive motor is of synchronous type with rotational excitation and the actual operating conditions of it determine additional mechanical and electrical stresses, which can influence its performance. The asynchronous start-up mode assumed experimental determination of asynchronous start-up current values, asynchronous start-up time, excitation voltage and excitation current of exciter, voltage drop in stator winding. These experimental determinations were made using a dedicated data acquisition system. Graphical plotting was made and considered parameters were evaluated in continuous mode, then obtained values were compared with catalogue values, with conclusions being drawn for each case study.
Analysis of the fluid dynamic behaviour through the air collector following the installation of pressure outlets
Authors: Bucevschi R , Socalici V , Berghian A Budiul , Birtok Băneasă C
Published: January 2020

This study is a preliminary investigation to determine the feasibility of creating an experimental model of pressure analysis at different points in the air intake system of an internal combustion engine. The purpose of the CFD analysis is to determine whether or not the value of the pressure obtained from the air intakes is influenced by their geometry or position. The study presents both the results of the analysis and the steps and parameters used in the numerical modeling process. The software used to create the numerical model is Fluent from the suite of software provided by Ansys under the academic license.
Capitalization possibilities of small ferrous and pulverous waste in the iron production industry
Authors: Lupu O , Socalici A , Bucur F , Ardelean E
Published: January 2020

Small ferrous and pulverous waste are resulted from the industry and can be processed through agglomeration, briquetting or pelleting based on the granulometric features of the waste. For the current paper, the agglomeration/briquetting method has been used and it has been made for waste resulting from the iron production industry. The laboratory experiments are pressed, together with the qualitative and quantitative tests of the experimental agglomerate/briquette. The achievement of by-products can be used as raw material in the making cast iron or steel and it permits an efficient optimizing of resources in the context of durable development, also bringing along economical and ecological advantages.
Research on the transient regime of SF6 circuit breakers in MATLAB
Authors: Ciulica D
Published: January 2020

In this paper is presented a Matlab application for studying the connection and disconnection of circuit breakers. The application has a graphical user interface where it is possible to modify the simulation parameters of the connection and disconnection operations. The simulation parameters can be changed in an intuitive way. The application can also be used for educational purposes to study phenomena that occur during the connection or disconnection process.
Knowledge graph using resource description framework and connectionist theory
Authors: Lourdusamy Ravi , Mattam Xavierlal J
Published: January 2020

Interest in Knowledge Graph has peeked these years. The use of RDF triples for the construction of knowledge graph has been limited by the fact that the vector embedding of RDF to make it machine readable has been constraining factor. This article presents the use of weighted RDF as a vector embedding of RDF that could be used with Bayesian networks in Graph Neural Networks. The vector embedding helps in representing the weights on RDF that could be obtained using Bayes theorem of assessing probability. The resulting weighted RDF could be used in many applications. The use of it in a Clinical Decision Support System is given as a simple illustration together with the calculation of the weights using Bayes theorem. The weighted RDF in Graph Neural Network will represent the knowledge graph using RDF and connectionist theory.
MRI image compression using multiple wavelets at different levels of discrete wavelets transform
Authors: Narayana Prakash S , Khan A M
Published: January 2020

Medicine is benefited in large amount with the utilization of imaging. Magnetic Resonance Imaging (MRI) is an important imaging modality that is used for better diagnosis. Since the number of images generated by MRI is in large number per patient, the requirement for storage space and transmission bandwidth will be larger. In the area of image processing, image compression finds an important application that reduces storage space and transmission bandwidth. One way to compress the image is by using transform based techniques. In this work, we have used DWT (Discrete Wavelet Transform) with multiple wavelets at different levels to transform the MRI images. In the first few levels CDF (Cohen–Daubechies–Feauveau) 9/7 wavelet is used for transformation and Haar wavelet is used for remaining levels. After transformation SPIHT (Set Partitioning In Hierarchical Trees) algorithm is used for compression of the images. We have observed better compression in terms of MSE (Mean squared Error) and PSNR (Peak Signal to Noise Ratio) with the proposed method in comparison with the single wavelet transformation.
Twitter Sentiment Analysis on Airline Tweets in India Using R Language
Authors: Sreeja I , Sunny Joel V , Jatian Loveneet
Published: January 2020

Every day, passengers from all parts of the world are carried over to various destinations in about 100,000 flights. And their experience in the journey is almost unknown to the airlines. Gaining knowledge on customer opinions on the airlines is very crucial as it is very difficult for the Indian Airlines to collect customer feedback. Also, the understanding of the degree to which customers are satisfied is vital for the strategy development for the company. And hence, twitter data is utilized for the same purpose. Twitter is the best possible to way to obtain such information. This paper focuses mainly on the analysis of customer views on Indian Airlines services. Data visualization is used here for displaying customer feelings which can be anger, fear, anticipation, trust, surprise, sadness, joy and disgust. Whole together their opinion can be sentiments such as positive and negative.
Artificial Intelligence Algorithms and Techniques in the computation of Player-Adaptive Games
Authors: Ranjitha M , Nathan Kazaka , Joseph Lincy
Published: January 2020

A game usually used as a synonym for entertainment also serves as an educational tool. Originally targeting the enjoyment, the meaning of the game has evolved to much greater conceptions and applications. Games require physical or mental or sometimes both the simulation. Many games help develop practical skills, serve as a form of exercise, or otherwise perform an educational, simulation, or psychological role. Having to be built on some key elements, which are goals, rules, challenge, and interaction. Various strategies and algorithms such as path finding and decision trees, have been developed to simulate those interactions between the human user and the computer in front of him. In video games, artificial intelligence (AI) is used to generate responsive, adaptive or intelligent behaviours primarily in non-player characters (NPCs) similar to human-like intelligence. This paper makes a short analysis of those preferred techniques and suggest from the study and the outcomes, the efficiency of each. The paper also focuses on the heuristic function, implementation platforms and design guidelines of the various searching algorithms used in adaptive games.
A structured approach to implementing Robotic Process Automation in HR
Authors: Balasundaram Sathiyaseelan , Venkatagiri Sirish
Published: January 2020

Technological innovations are changing the industrial landscape. As technology transforms the world, the HR function needs to focus on embracing automation and other technologies that promise efficiency, service effectiveness and cost savings. Deployment of robotic process automation (RPA) can help (a) to offer better service to employees and managers (b) ensure compliance of HR processes with standards and regulations (c) facilitate rapid initiation and completion of HR processes (d) enhance efficiencies by digitizing data and auditing process data (e) improve HR productivity and cost savings by automating manual and repetitive tasks. A robust and structured approach needs to be in place to identify HR processes that can be automated using the RPA approach. In this paper the authors (a) suggest a four step approach – validation, assessment, evaluation and classification - to analyze processes and verify their suitability for automation using RPA (b) identify HR processes that has relevance for the RPA approach within the broad areas of HR Strategy, Talent Acquisition, Talent Development & Performance Management, Compensation & Benefits, HR Operations and Employee Relations (c) recommend a process for mapping HR RPA propensity. A case study is also presented for greater clarity on adoption of RPA in HR processes.
MAR_Sybil: Cooperative RSU Based Detection and Prevention of Sybil Attacks in Routing Process of VANET
Authors: Kabbur Mahabaleshwar , Arul Kumar V.
Published: January 2020

VANET is a next generation communication technology where vehicles create an autonomous network with assistance of RSU (Road Side Units). VANET provides legitimate information to the users on the road, in order to increase the road and user’s safety. It provides useful information to the vehicles about directions, location mapping, premises, etc. The fast propagation of emergency and local warning messages to the approaching vehicles will be helpful for preventing secondary accidents. If security of the network is not guaranteed, several attacks may occur, thereby alert messages may not reach to the RSUs on time or message may get spoof due to attack on it. Major attacks on emergency messages such as timing attack, spoofing attack, DoS attack, Sybil attack, etc. would be considered to mitigate and make the communication and infrastructure more secure. One of the major emergency message attack is Sybil, which is used by selfish message propagators to claim authenticity of their message by propagating with multiple identities. By deceiving other nodes with their false support using multiple identifies, they can achieve various purpose in network like vehicle re-routing, speed shift etc. This work proposes a RSU cooperative detection mechanism involving triangulation and fake propagation by RSU to identify the Sybil attacks in the VANET. The proposed methodology secures fast communication emergency messages to prevent secondary accidents by validating the message sources, nodes will accept only the messages from RSU which are digitally signed and source validated against Sybil nodes. The performance evaluation is made with existing methodology and effectiveness of the proposed methodology results demonstrated in article. The spatial location and trajectory of attacker is learnt effectively with RSU cooperation in the proposed work.
Security of Vehicular Ad-Hoc Networks (VANET): A survey
Authors: Afzal Zehra , Kumar Manoj
Published: January 2020

In the previous couple of years, various types of researchers concentrate on Vehicular Ad-hoc networks (VANET) field due to various facilities it provides. VANET a subgroup of mobile ad-hoc network (MANET), refers to a group of intelligent nodes i.e. (vehicles) on the road. These intelligent vehicles interact with one other or with the road side unit (RSU) for providing safer roads and a more efficient driving experience and providing security against attackers. In VANET messages are conveyed in an open wireless channels Security is therefore the most concerning issue in VANET. In this paper several types of the security issues, requirements, attacks, attackers in VANET have been described and some recent solutions to solve the security problems with their advantages and disadvantages have been discussed.
Nonlinear thermal convection on unsteady thin film flow with variable properties
Authors: Prasad M. Karuna , Naveenkumar S H , Raju C. S.K. , Upadhya S.Mamatha
Published: January 2020

This study portray the influence of variable viscosity, thermocapillarity, nonlinear convection, variable thermal conductivity on the laminar flow and heat transfer in a liquid film on a horizontal stretching sheet. Time dependent flow equations are transformed to coupled ordinary equations by the assistance of similarity transformation. Numerical results are obtained via applying Runge-kutta and Newton’s methods. For some representative value of the parameters graphs are exhibited and surface skin friction coefficient and heat transfer are presented in tabular form. It is observed that non-linear convection case shows higher velocity and associated boundary layer thickness compared with linear convection. Elapsed time is more in nonlinear convection for growing values of A, δ, Pr and M compared to linear convection.
Architectural Tourism Development Model as Sustainable Tourism Concept in Bandung
Authors: Permana A Y , Susanti I , Wijaya K
Published: January 2020

Bandung is famous tourist destinations in Indonesia which experiences rapid tourism development. It is supported by city’s diverse tourism potential, include in: nature, culture, heritage building, culinary, fashion, recreation, and entertainment. Moreover, infrastructure and public facility improvement increase tourism attractiveness of Bandung. Two major infrastructure projects, namely Cipularang Toll and Jakarta - Bandung Fast Train will support Bandung tourism development. This condition is benchmark of Bandung tourist attractions. To maintain such potential, it is necessary for Bandung to have programmed, structured, and controlled tourism development model. Current tourism model is inclined to sustainable industrial concept preserving environment and local culture. Tourism programme is directed to generate income and green employment, with regard to conservation. This study aims to assist planning and management of sustainable tourism development by increasing level of understanding on how tourist destinations develop and change. Results of this study can be taken into consideration for stakeholder to develop a framework for strategic planning toward economically, environmentally and culturally sustainable tourism.
Sustainability in High Dense River Bank Kampung: the Playground as the Responsive Space Utilization
Authors: Prathama D , Ellisa E
Published: January 2020

The growing mass migration descending upon Jakarta forced the urban lower class inhabitants to live in the dense settlement calledkampungs.How the urbankampunginhabitants survive living in such densely populated place implied the hardship and their negotiation to cope with crowding. Our previous study had revealed how overcrowded houses inkampungare used and adapted as the places to live. This study attempted to explore the negotiation with crowding using the variables of the outdoor space within the context of the spatial arrangement of the wholekampung.The aim is to find out the relationship between the informal spaces’ physical characteristics and its potency to be occupied to form a playing space. We focused on how the children and teenagers utilize the available public place as a playground in high densekampungof Bidara Cina Jakarta. We found that children and teenagers shaped the informal playing spaces at the Ciliwung riverbanks, alleys, and roads as the form of responsive space utilization. We also found that the normalization of the banks of the Ciliwung River was positively associated with a potential expansion of the playing space and playground.
Overview of Affordable Housing from Supply and Demand Context in Malaysia
Authors: Tobi S U M , Jasimin T H , Rani W N M W M
Published: January 2020

The increase in the number of rural populations migrated to the city has increased over the years. This led to the widespread of urbanisation in cities. As a developing country, this is also happening in major cities in Malaysia. In this regard, this also contributes to the needs of the residents to have affordable homes, especially in urban areas. Malaysia government is very serious in ensuring all its citizens towards owning their own homes. This can be seen clearly through the evolution of Malaysia's housing policy since the era of independence to the present. Therefore, this paper seeks to build theoretical understanding on affordable housing issues from supply and demand context. This was done based on findings by reviewing a thorough review of literature from local and global context pertaining to this issue. The findings from literature reveal that housing supply in Malaysia is leading by landed property development compare to high rise building. Most developers who developed the land with mixed development approach are having landed property housing for middle class and high-class income, while the high rise housing building is to cater the low income group. This could possibly become the main reasons for mismatch housing supply and demand in certain location. The conclusion from the literature help looking the issue of supply and demand mismatch from a broader view to help understand the underlying reason of housing supply by private sector as well as from the government sector. Furthermore, understanding Malaysian culture would also give an understanding on what are the factors that cause the buyer to buy a home.
The Synergism of Food Industry and the Local Economy in Addressing Rural-Urban Linkage in Semarang Regency
Authors: Pangarso Agung
Published: January 2020

Industry in Semarang Regencyis still dominated by the wearing apparel industry subsector which is labor intensive and footloose that tends to be located around urban areas. But, in certain potential sub-sectors such as food industry has a strong linkage with the agriculture and livestock, and geographically tends to be located around the periphery or rural areas. It establishes sectoral specialization at the local level, potentially to form industrial clusters and encourages spatial integration between rural and urban areas. This research aims: (1) to identify the synergism of food industry and local economy; and (2) to understand how the synergism address the rural-urban linkage in the region. The research was done in district and sub-district (meso) level during 2018-2019. The research uses data of Large and Medium Industries (LMIs), related Small Industries (SIs), and the local economy. Quantitative-qualitative descriptive analysis is used to identify the synergism of food industry and the local economy and how it addresses the rural-urban linkages. Result shows the synergism of food industry and local economy in Semarang Regencypotentially encourages the linkages between this sub-sector with livestock and horticulture or the agricultural sector in general. The linkage of food industry and agriculture region shows the proximity of industry to the source of raw materials in rural areas. This synergism increases positive externalities of industry such as job creation, increased investment value and knowledge transfer. Urban and metropolitan areas become the potential market for food industry products. Food industry encourages the spatial integration between rural and urban or mutual rural-urban linkages. It can explain the regional network based on the clustering model through providing opportunities for the development of local economic or endowment factors in the region. The cluster strategy approach is used in the development of this sub-sector in order to increase regional competitiveness. The development of small towns in periphery regions or rural areas can be a counterbalance to the tendency of over-urbanization in the metropolitan areas.
Strategizing the Methodology in Assessing Malaysia’s Heritage Urban River Corridor Landscapes
Authors: Abidin N A Z , Cushing D , Lawson G
Published: January 2020

The river corridors of Malaysia’s heritage river cities have long been contributing to the livelihood of diverse communities within these places. Recently, the speedy city development progress in Malaysia to accommodate the up to date cultural-based heritage economy, coupled with severe climate change and lack of community consultation in designing and developing the river corridors has made a difference to the landscape settings of these places. These have raised concerns among the local community, particularly the local workers who are depending on the resources along the river corridors. This paper explains the strategy in triangulating multiple research methods to identify and assess the important landscape character settings of Malaysia’s urban river corridors, which are significant in the routine of the working communities at these places. The experiential landscape survey (ELS) – the phenomenological approaches in landscape assessment created by Thwaites and Simkins was tested. Three inter-connected processes that consist of Process 1 – defining preliminary river corridor boundaries, Process 2 – looking for relevant occupations and individuals (as participants), and Process 3 – identifying and assessing the significant landscape setting successfully strategized in this study. The outcome helps to assess the landscape character in relation to working communities’ experience for heritage urban river corridors in Malaysia. It also expands the conventional landscape character assessment through multiple methods, including site observation, ELS, and interviews.
A Model of Community Events as a Cultural Heritage Conservation Effort in Semarang Chinatown
Authors: Kurniati R , Sophianingrum M , Khadiyanto P , Nugraha M F
Published: January 2020

Semarang Chinatown has a potential to be developed as an alternative tourism attraction in Semarang. This area has a local distinctive identity, historical value, and many community events. Development of these events threatened the existence of traditional spaces in the area, marked by the threat of building functions transformation as a result of demands for the development of economic activities.The aim of this studyis to analyze the direction of appropriate community events as an effort to conserve Semarang Chinatown. The method of this study is a qualitative method using descriptive analysis and SWOT analysis techniques. The results of this study show that the event model that can be utilized in the preservation of Semarang Chinatown is a model of event that seeks to conserve the area, provide an additional income for the community, and involve the community in its development and implementation. Warung Semawis is the right model of event to be utilized because it has an established routine intensity, good branding and interaction between communities, good event management, and cooperation.
Bus Trans Semarang toward Sustainable Transportation in Semarang City
Authors: Rakhmatulloh A R , Kusumo Dewi D I , Nugraheni D M K
Published: January 2020

Semarang is a metropolitan city with population of 1.6 million. Due to heavy use of private vehicle, Semarang also experiences traffic congestion problems like other metropolitan cities. To deal with this problem, Government of Semarang provides public transportation, one of which is Bus Trans Semarang. Passengers of Bus Trans Semarang increase every year. In 2017, on average there was 287,738 passengers per month, the number increases to 301,678 passengers per month in 2018. Bus Trans Semarang route was also developed into seven corridors. The service has reached almost entire city of Semarang. Purpose of this research is to find out effectiveness of Bus Trans Semarang as a sustainable public transportation service which supports mobility of the people and a solution to solve congestion problems in the next few years. Results of this study suggest that Bus Trans Semarang reduces congestion problems.
Climate Change Adaptation and Disaster Risk Reduction in Urban Development Plans for Resilient Cities
Authors: Rani W N M W M , Kamarudin K H , Razak K A , Asmawi Z M
Published: January 2020

As a result of climate change, cities today are increasingly exposed to various climate-related risks. This has resulted in a significant change in the way we deal with cities. In recent years, efforts toward achieving resilient cities have been strengthened with various initiatives and actions. Internationally, among the key initiatives are the launching of Sustainable Development Goals, New Urban Agenda, and Sendai Framework for Disaster Risk Reduction, the Paris Agreement to achieve climate and disaster resilient within cities. Development plans are known to be essential documents to present strategies to guide future development, thus have the potential to ensure the improvement of the city’s resilience. Hence, this paper aimed at assessing the current state of the adoption of climate change adaptation and disaster risk reduction strategies in the various level of development planning. Based on the content analysis method, the paper discusses the different types of adaptation and mitigation interventions at national, state and local level plans aimed at reducing the impact of climate change and disaster risk in cities. Malaysian’s federal policy documents (Eleventh Malaysia Plan, National Physical Plan III and National Urbanisation Policy II), state structure plans (Kuala Lumpur Structure Plan 2020 and Pahang State Structure Plan 2035) and local development plans (Kuala Lumpur City Plan 2030 and Cameron Highlands Draft Local Plan 2030) were referred to for this purpose. Overall, findings of the study indicated that at the national level, aspects of CCA and DRR are limited to the environment and infrastructure sector. However, locally, much higher integration of CCA and DRR strategies are evident in the Cameron Highlands Draft Local Plan 2030. Thus, it is realised that Malaysia is progressing positively towards mainstreaming CCA and DRR strategy in the different level of development plans crossing all sectors with various types of interventions. However, more effort is needed to focus on the collaborative action in the implementation of the strategies and actions stipulated in the development plans.
Street Vendors’ Activity Space in the Residential, Public Space (Case Study: Tirto Agung Park, Semarang)
Authors: Widjajanti R , Sunarti  , Ardiati H H
Published: January 2020

Public space as a facility that accommodating community social activities has become one of the important aspects in terms of enhancing people’s lives in the scope of residential and settlements, which include active parks. Tirto Agung Park, as an active park located close to the residential area in Banyumanik Sub-District, Semarang City, becomes a place visited by many people to accommodate recreational, entertainment, and sports activities purposes. Therefore, Tirto Agung Park became a location/space/place for street vendors to grow and develop their activities. Street vendors often use existing public spaces such as inside the park, roadsides, and sidewalks for their activities. This condition often makes a spatial utilization conflict between street vendors and the main activities in Tirto Agung Park. Hence, it is important to identify the street vendors’ activity space in Tirto Agung Park as a public space for a residential community in Banyumanik Sub-District. The purpose of this research is to identify the livability of street vendors’ space based on their behavior in its location. This research uses quantitative methods by conducting surveys through questionnaires by applying disproportionate stratified random sampling techniques. The results of this study explain the space availability of street vendors’ activities in Tirto Agung Park, including the types of street vendors’ activities, types of activities around street vendors, space forms, activity time, access, natural elements, space security, and parking space.
Adaptation of Ojek Online’s Behavior to Open Space Settings in Pontianak City
Authors: Akbar E P , Kurniadi F , Destria C
Published: January 2020

In the era of the Industrial Revolution 4.0, technological developments greatly facilitated the city community to carry out various activities and were no longer limited to space and time. The ease of online applications such as online motorcycle taxis provides city-class convenience in all matters and across socio-political and economic sectors. The emergence of online motorcycle taxis in Indonesia in general and the entry of Ojek Online in the City of Pontianak made a new behavior in the economic transaction system and provided convenience for the community in its activities. On the one hand it has a positive impact and on the other hand, raises new sights in the open spaces of the city which are used as hangouts or activities waiting for online motorcycle taxis. This study aims to determine the level of adaptation behavior carried out by online motorcycle taxi drivers to the space settings they are waiting for and what forms of adaptation behavior are carried out in open spaces in Pontianak City. The method used is Behavior Mapping, which looks at the relationship between the Space Setting variables and behavioral settings variable towards the adaptation behavior of online motorcycle taxi drivers in Pontianak City. The level of adaptation that arises that is derived from Adaptation By Adjustment, Adaptation by Reaction and Adaptation by Withdrawl. The results of this study are The behavior of Adaptation by Adjustment of the Ojek Online in the open space is influenced by Fixed Featured Space. If there is no Fixed Featured Space setting and the Semi-Fixed Feature Setting can trigger the occurrence of Adaptation by Reaction, and Adaptation by Withdrawl behavior is influenced by weather conditions such as heat and rain. This research is expected to be the input of the Pontianak City government in managing open spaces and facilitating online motorcycle taxi drivers to get a more orderly and humane waiting place.