helen cia - Academia.edu (original) (raw)
Papers by helen cia
Mechanical Systems and Signal Processing, 2022
This paper has solved the inverse eigenvalue problem for "fixed-free" mass-chain systems with ine... more This paper has solved the inverse eigenvalue problem for "fixed-free" mass-chain systems with inerters. It is well known that for a spring-mass system wherein the adjacent masses are linked through a spring, the natural frequency assignment can be achieved by choosing appropriate masses and spring stiffnesses if and only if the given positive eigenvalues are distinct. However, when we involve inerters, multiple eigenvalues in the assignment are allowed. In fact, arbitrarily given a set of positive real numbers, we derive a necessary and sufficient condition on the multiplicities of these numbers, which are assigned as the natural frequencies of the concerned mass-spring-inerter system.
Journal of Architectural Design and Urbanism, 2020
The purpose of this research is to explore the concept of revitalizing the coastal tourism area w... more The purpose of this research is to explore the concept of revitalizing the coastal tourism area with a sustainable tourism approach. Ocarina area is one of the tourist destinations in Batam city. Its strategic location is right in the center of Batam and is surrounded by several areas with different functions, among others there are housing (housing Regata, housing Monde Residence, housing Avante, Monde Signature housing, etc.), a school (Mondial school), a commercial area ( Pasir Putih shops, Mahkota Raya shops) and also the location of Ocarina area is close to the international ferry. The phenomenon that occurs in this tourist area has long been built and managed but has decreased visitors so that needs to be revitalized by using the concept of sustainable tourism. This strategic location is not accompanied by the success of the development of the Ocarina area as a public space that offers a variety of game facilities and culinary venues. The phenomenon that makes the need for rev...
Jurnal Arsitektur ARCADE, 2020
Almost every city and every country, besides having a formal sector also has an informal sector. ... more Almost every city and every country, besides having a formal sector also has an informal sector. The emergence of street vendors along the Kintamani corridor is an activity that supports the main activities taking place in the area. The main activities include worship, education, commercial and housing. The existence of street vendors trading activities has led to new activities in this road corridor where in addition to being a vehicle circulation, also a parking lot and even a place to gather and relax especially in the afternoon. Setting area aims to find out, recognize the diversity of street vendors activities and know the space needed by street vendors so that they know the pattern of setting areas that accommodate the diversity needs of street vendors as supporting activities without disturbing the main activities of the Kintamani Road corridor and the surrounding environment. The approach taken is to use a qualitative approach with a descriptive exploratory method. Interview with selected respondents based on certain criteria. Data analysis was performed by classifying the diversity of street vendors in the corridor. This area setting is expected to be able to solve city problems, street vendors themselves as perpetrators who are often evicted or forcibly moved and also the Batam city government as a policy maker so that urban spatial planning is synergized to improve the economy of the community and city.
Jurnal Arsitektur ARCADE, 2019
Journal of Architectural Design and Urbanism
The purpose of this research is to explore the concept of revitalizing the coastal tourism area w... more The purpose of this research is to explore the concept of revitalizing the coastal tourism area with a sustainable tourism approach. Ocarina area is one of the tourist destinations in Batam city. Its strategic location is right in the center of Batam and is surrounded by several areas with different functions, among others there are housing (housing Regata, housing Monde Residence, housing Avante, Monde Signature housing, etc.), a school (Mondial school), a commercial area ( Pasir Putih shops, Mahkota Raya shops) and also the location of Ocarina area is close to the international ferry. The phenomenon that occurs in this tourist area has long been built and managed but has decreased visitors so that needs to be revitalized by using the concept of sustainable tourism. This strategic location is not accompanied by the success of the development of the Ocarina area as a public space that offers a variety of game facilities and culinary venues. The phenomenon that makes the need for rev...
Mechanical Systems and Signal Processing, 2022
This paper has solved the inverse eigenvalue problem for "fixed-free" mass-chain systems with ine... more This paper has solved the inverse eigenvalue problem for "fixed-free" mass-chain systems with inerters. It is well known that for a spring-mass system wherein the adjacent masses are linked through a spring, the natural frequency assignment can be achieved by choosing appropriate masses and spring stiffnesses if and only if the given positive eigenvalues are distinct. However, when we involve inerters, multiple eigenvalues in the assignment are allowed. In fact, arbitrarily given a set of positive real numbers, we derive a necessary and sufficient condition on the multiplicities of these numbers, which are assigned as the natural frequencies of the concerned mass-spring-inerter system.
Journal of Architectural Design and Urbanism, 2020
The purpose of this research is to explore the concept of revitalizing the coastal tourism area w... more The purpose of this research is to explore the concept of revitalizing the coastal tourism area with a sustainable tourism approach. Ocarina area is one of the tourist destinations in Batam city. Its strategic location is right in the center of Batam and is surrounded by several areas with different functions, among others there are housing (housing Regata, housing Monde Residence, housing Avante, Monde Signature housing, etc.), a school (Mondial school), a commercial area ( Pasir Putih shops, Mahkota Raya shops) and also the location of Ocarina area is close to the international ferry. The phenomenon that occurs in this tourist area has long been built and managed but has decreased visitors so that needs to be revitalized by using the concept of sustainable tourism. This strategic location is not accompanied by the success of the development of the Ocarina area as a public space that offers a variety of game facilities and culinary venues. The phenomenon that makes the need for rev...
Jurnal Arsitektur ARCADE, 2020
Almost every city and every country, besides having a formal sector also has an informal sector. ... more Almost every city and every country, besides having a formal sector also has an informal sector. The emergence of street vendors along the Kintamani corridor is an activity that supports the main activities taking place in the area. The main activities include worship, education, commercial and housing. The existence of street vendors trading activities has led to new activities in this road corridor where in addition to being a vehicle circulation, also a parking lot and even a place to gather and relax especially in the afternoon. Setting area aims to find out, recognize the diversity of street vendors activities and know the space needed by street vendors so that they know the pattern of setting areas that accommodate the diversity needs of street vendors as supporting activities without disturbing the main activities of the Kintamani Road corridor and the surrounding environment. The approach taken is to use a qualitative approach with a descriptive exploratory method. Interview with selected respondents based on certain criteria. Data analysis was performed by classifying the diversity of street vendors in the corridor. This area setting is expected to be able to solve city problems, street vendors themselves as perpetrators who are often evicted or forcibly moved and also the Batam city government as a policy maker so that urban spatial planning is synergized to improve the economy of the community and city.
Jurnal Arsitektur ARCADE, 2019
Journal of Architectural Design and Urbanism
The purpose of this research is to explore the concept of revitalizing the coastal tourism area w... more The purpose of this research is to explore the concept of revitalizing the coastal tourism area with a sustainable tourism approach. Ocarina area is one of the tourist destinations in Batam city. Its strategic location is right in the center of Batam and is surrounded by several areas with different functions, among others there are housing (housing Regata, housing Monde Residence, housing Avante, Monde Signature housing, etc.), a school (Mondial school), a commercial area ( Pasir Putih shops, Mahkota Raya shops) and also the location of Ocarina area is close to the international ferry. The phenomenon that occurs in this tourist area has long been built and managed but has decreased visitors so that needs to be revitalized by using the concept of sustainable tourism. This strategic location is not accompanied by the success of the development of the Ocarina area as a public space that offers a variety of game facilities and culinary venues. The phenomenon that makes the need for rev...