The present study was carried out to verify the statistical relationships between the characteristic parameters in terms of vegetative aerial architecture of the date palms for simulating realistic 3D models. The vege...The present study was carried out to verify the statistical relationships between the characteristic parameters in terms of vegetative aerial architecture of the date palms for simulating realistic 3D models. The vegetal material was composed of two Tunisian varieties of Phoenix dactylifera L., ＂Barhi＂ and ＂Rochdi＂. The observations are taken place in Gabes and on one pair of palms per main stem and offshoot for each cultivar. The analysis of the characteristic dimensions of the pinnae and rachis allowed the determination of a minimum sample. The geometrical analysis confirmed the existence of a strong correlation between rotation angles and radial angles. The architectural analysis of the two Tunisian cultivars revealed that the distribution of characteristic parameter values of pinnae was the outcome ofa regionalized variable along the rachis. This statistical study of relationships between the characteristic parameters in terms of vegetative aerial architecture of the two varieties allows executing a new measurement protocol for computing and simulating realistic 3D models.展开更多
In 2008, two governmental committees presented their conclusions on strengthening the role of the private building sector in building control. In 2011, three new studies were commissioned by the government to address ...In 2008, two governmental committees presented their conclusions on strengthening the role of the private building sector in building control. In 2011, three new studies were commissioned by the government to address perceived problems. One of them was an integral study, executed by ERB （Foundation Expertcentre Regulations in Building）, RIGO （Research Institute for Real Estate） and TNO （Research Institute for Applied Technologies）, to innovate the whole building regulations system. It led to proposals to redefine responsibility and liability for all parties. This study states that by an effort of yearly ￡100 million, unnecessary costs up to ￡l billion can be avoided and a real quality push will take place in the building and real estate markets. The goals to reach are to minimize the administrative burden for the building owner and to enforce the construction industry to build conforming to the regulations. This paper discusses the ERB study and the given proposals. The ERB study demonstrated that a quality push is needed which potential will lead to less costs for building owners. It also shows that proven solutions, part of the regulations, might be of help for all parties involved.展开更多
Nesting activity, declining factors and conversation strategy of hawksbill turtle （Eretmochelys imbricata） in Persian Gulf islands investigated. Nesting analysis and hatchability has been monitored by counting. Our ...Nesting activity, declining factors and conversation strategy of hawksbill turtle （Eretmochelys imbricata） in Persian Gulf islands investigated. Nesting analysis and hatchability has been monitored by counting. Our management strategy has been useful significantly in preserving hawksbill turtle existence. Depletion prevented, nesting habitats protected and better conservative programs designed.展开更多
Nowadays, the rapid changes in the marketing environment of construction products accelerate the shortening tendency of product life cycles which in return put pressure on companies to produce successful new products ...Nowadays, the rapid changes in the marketing environment of construction products accelerate the shortening tendency of product life cycles which in return put pressure on companies to produce successful new products and adopt innovative strategies to survive and expand in the fast competitive environment. The success of the new construction products calls for a high-quality and well-managed product development process. Thus, this study aims at defining the basic steps of a NPD （new product development） process designed for floor coverings and evaluating its applicability. To this end, the product development methods of the leading companies in the construction sector in Turkey have been analyzed. Also, a questionnaire has been conducted to determine which of the steps of the proposed methodology are currently being realized and which are not or cannot be implemented. Finally, based on this information, certain suggestions have been made as to what can be done to enhance the NPD processes of the companies＇ subject to evaluation.展开更多
Construction companies face threats from competition and must be able to adjust to modem technology and changes in customer expectations. These issues require efficient risk management techniques. The success of const...Construction companies face threats from competition and must be able to adjust to modem technology and changes in customer expectations. These issues require efficient risk management techniques. The success of construction companies running projects in international markets depends on how the risks arise from the host country conditions as well as the project specific risk factors. Successful management of risks requires identification of risks, construction of a risk model which can be used to assess the magnitude of risks, and implementation of response strategies so that an acceptable risk-return balance can be achieved. The project success usually depends on the combination of all risks, response strategies used to mitigate risks, and a company＇s ability to manage them. There exists a need to develop risk models containing the risks of doing business in international markets and factors that affect manageability of these risks. One of the market＇s critical challenges is scheduled management and the understanding and application of program management. This paper uses systematic risk identification, classification and analysis, and measurement and response methodologies to help international contractors quantify the risks of project development and accomplishment.展开更多
As one type of the highly sought after housing facilities in Indonesia, Kosts have formed unique heterogeneous living environment while also been a part of fast growing urban settlement developments in Indonesia＇s ca...As one type of the highly sought after housing facilities in Indonesia, Kosts have formed unique heterogeneous living environment while also been a part of fast growing urban settlement developments in Indonesia＇s capital, Jakarta. This paper investigates the nature and operation of Kost private rental housing developed with various conditions and arrangements, as well as its position among other dwelling types, based on on-site investigations, literature reviews and statistical analyses. It is necessary to understand the development of Kost as it shows potentials to overcome the lack of affordable and adequate housing in the country. An accurate checking process during the application of building permit may early identify Kosts. Undefined standard of operation and arrangement may hinder improvement opportunities to its quality of services. Efforts to educate the community and easy access to related regulations are necessary for improvement and compliance awareness. Moreover, increased collaborative design and public education may improve the knowledge of self-builders on building design, planning and construction. Associations of self-organized housing and platforms offering affordable design services that meet the guidelines and standards are promising ootions.展开更多
The purpose of this paper is to study relations among equivariant operations on 3-dimensional small covers. The author gets three formulas for these operations. As an application, the Nishimura＇s theorem on the const...The purpose of this paper is to study relations among equivariant operations on 3-dimensional small covers. The author gets three formulas for these operations. As an application, the Nishimura＇s theorem on the construction of oriented 3-dimensional small covers and the Lu-Yu＇s theorem on the construction of all 3-dimensional small covers are improved. Moreover, for a construction of 3-dimensional 2-torus manifolds, it is shown that all operations can be obtained by using the equivariant surgeries.展开更多
This paper addresses a research question on why construction companies fail in their business. Starting with the concept of growth and capacity underinvestment archetype, a new and operational systems thinking model i...This paper addresses a research question on why construction companies fail in their business. Starting with the concept of growth and capacity underinvestment archetype, a new and operational systems thinking model is developed. The conceptual systems thinking model includes a set of causal structure that can explain various modes(including the growth and failure modes) of business performance of small and medium construction companies. Mainly the three components – projects,finance and capacity – and the understanding of their nexus(or causal inter-relationships) are found to be sufficient to reveal different performance modes in construction business. Further, the three operational aspects, namely, the business growth or decline process;the situation of financial and other capacity resource consumption; and the management of projects, finance and other capacity resources have been identified as the interrelated core and integral aspects of construction business.The three inter-related core aspects could actually include and explain different possible range of business situations,policies and practices in a construction company.展开更多
文摘The present study was carried out to verify the statistical relationships between the characteristic parameters in terms of vegetative aerial architecture of the date palms for simulating realistic 3D models. The vegetal material was composed of two Tunisian varieties of Phoenix dactylifera L., ＂Barhi＂ and ＂Rochdi＂. The observations are taken place in Gabes and on one pair of palms per main stem and offshoot for each cultivar. The analysis of the characteristic dimensions of the pinnae and rachis allowed the determination of a minimum sample. The geometrical analysis confirmed the existence of a strong correlation between rotation angles and radial angles. The architectural analysis of the two Tunisian cultivars revealed that the distribution of characteristic parameter values of pinnae was the outcome ofa regionalized variable along the rachis. This statistical study of relationships between the characteristic parameters in terms of vegetative aerial architecture of the two varieties allows executing a new measurement protocol for computing and simulating realistic 3D models.
文摘In 2008, two governmental committees presented their conclusions on strengthening the role of the private building sector in building control. In 2011, three new studies were commissioned by the government to address perceived problems. One of them was an integral study, executed by ERB （Foundation Expertcentre Regulations in Building）, RIGO （Research Institute for Real Estate） and TNO （Research Institute for Applied Technologies）, to innovate the whole building regulations system. It led to proposals to redefine responsibility and liability for all parties. This study states that by an effort of yearly ￡100 million, unnecessary costs up to ￡l billion can be avoided and a real quality push will take place in the building and real estate markets. The goals to reach are to minimize the administrative burden for the building owner and to enforce the construction industry to build conforming to the regulations. This paper discusses the ERB study and the given proposals. The ERB study demonstrated that a quality push is needed which potential will lead to less costs for building owners. It also shows that proven solutions, part of the regulations, might be of help for all parties involved.
文摘Nesting activity, declining factors and conversation strategy of hawksbill turtle （Eretmochelys imbricata） in Persian Gulf islands investigated. Nesting analysis and hatchability has been monitored by counting. Our management strategy has been useful significantly in preserving hawksbill turtle existence. Depletion prevented, nesting habitats protected and better conservative programs designed.
文摘Nowadays, the rapid changes in the marketing environment of construction products accelerate the shortening tendency of product life cycles which in return put pressure on companies to produce successful new products and adopt innovative strategies to survive and expand in the fast competitive environment. The success of the new construction products calls for a high-quality and well-managed product development process. Thus, this study aims at defining the basic steps of a NPD （new product development） process designed for floor coverings and evaluating its applicability. To this end, the product development methods of the leading companies in the construction sector in Turkey have been analyzed. Also, a questionnaire has been conducted to determine which of the steps of the proposed methodology are currently being realized and which are not or cannot be implemented. Finally, based on this information, certain suggestions have been made as to what can be done to enhance the NPD processes of the companies＇ subject to evaluation.
文摘Construction companies face threats from competition and must be able to adjust to modem technology and changes in customer expectations. These issues require efficient risk management techniques. The success of construction companies running projects in international markets depends on how the risks arise from the host country conditions as well as the project specific risk factors. Successful management of risks requires identification of risks, construction of a risk model which can be used to assess the magnitude of risks, and implementation of response strategies so that an acceptable risk-return balance can be achieved. The project success usually depends on the combination of all risks, response strategies used to mitigate risks, and a company＇s ability to manage them. There exists a need to develop risk models containing the risks of doing business in international markets and factors that affect manageability of these risks. One of the market＇s critical challenges is scheduled management and the understanding and application of program management. This paper uses systematic risk identification, classification and analysis, and measurement and response methodologies to help international contractors quantify the risks of project development and accomplishment.
文摘As one type of the highly sought after housing facilities in Indonesia, Kosts have formed unique heterogeneous living environment while also been a part of fast growing urban settlement developments in Indonesia＇s capital, Jakarta. This paper investigates the nature and operation of Kost private rental housing developed with various conditions and arrangements, as well as its position among other dwelling types, based on on-site investigations, literature reviews and statistical analyses. It is necessary to understand the development of Kost as it shows potentials to overcome the lack of affordable and adequate housing in the country. An accurate checking process during the application of building permit may early identify Kosts. Undefined standard of operation and arrangement may hinder improvement opportunities to its quality of services. Efforts to educate the community and easy access to related regulations are necessary for improvement and compliance awareness. Moreover, increased collaborative design and public education may improve the knowledge of self-builders on building design, planning and construction. Associations of self-organized housing and platforms offering affordable design services that meet the guidelines and standards are promising ootions.
基金Project supported by Fudan Universitythe Fujyukai Foundation and Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (No. 2009-0063179)
文摘The purpose of this paper is to study relations among equivariant operations on 3-dimensional small covers. The author gets three formulas for these operations. As an application, the Nishimura＇s theorem on the construction of oriented 3-dimensional small covers and the Lu-Yu＇s theorem on the construction of all 3-dimensional small covers are improved. Moreover, for a construction of 3-dimensional 2-torus manifolds, it is shown that all operations can be obtained by using the equivariant surgeries.
文摘This paper addresses a research question on why construction companies fail in their business. Starting with the concept of growth and capacity underinvestment archetype, a new and operational systems thinking model is developed. The conceptual systems thinking model includes a set of causal structure that can explain various modes(including the growth and failure modes) of business performance of small and medium construction companies. Mainly the three components – projects,finance and capacity – and the understanding of their nexus(or causal inter-relationships) are found to be sufficient to reveal different performance modes in construction business. Further, the three operational aspects, namely, the business growth or decline process;the situation of financial and other capacity resource consumption; and the management of projects, finance and other capacity resources have been identified as the interrelated core and integral aspects of construction business.The three inter-related core aspects could actually include and explain different possible range of business situations,policies and practices in a construction company.
