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Vu Phuong Hoang,Tran Viet Duc,Duong Minh Cuong,Cong Quyet Thang,Nguyen Thu 대한중환자의학회 2020 Acute and Critical Care Vol.35 No.4
Background: Identifying when intubated patients are ready to be extubated remains challenging. The negative inspiratory force (NIF) is a recommended predictor of weaning success. However, little is known about the role of NIF in the weaning process for the Asian surgical intensive population, especially for the Vietnamese population. Here, we aimed to investigate the cutoff threshold and predictive value of the NIF index for predicting the success of ventilator weaning in Vietnamese surgical intensive care patients. Methods: A cross-sectional study was conducted at the Surgical Intensive Care Unit of Viet Duc Hospital from October 2016 to August 2017. A total of 64 patients aged 16–70 years undergoing ventilatory support through an orotracheal tube satisfied the criteria for readiness to begin weaning. The correlation between the NIF index with outcomes of the weaning process was analyzed. Specificity (Sp), sensitivity (Se), positive predictive value (PPV), negative predictive value (NPV), receiver operating characteristic (ROC) curve, and area under the curve (AUC) were calculated. Results: The success rate of the entire weaning process was 67.2% (43/64). The median NIF values were –26.0 cm H2O (interquartile range [IQR], –28.0 to –25.0) in the successful weaning group and –24.0 cm H2O (IQR, –25.0 to –23.0) in the weaning failure group (P<0.001). According to ROC analysis, an NIF value ≤–25 cm H2O predicted weaning success (AUC, 0.836) with 91% Se, 62% Sp, 83% PPV, and 77% NPV. Conclusions: An NIF cutoff threshold ≤–25 cm H2O can be used as predictor of weaning success in Vietnamese surgical intensive care patients.
Vu Hoang Phuong,Nguyen Cong Thanh,Nguyen Quoc Tuan,Ta Hong Thanh Tu 한국인터넷방송통신학회 2023 International Journal of Internet, Broadcasting an Vol.15 No.1
In recent years, there are so many serious crashes involving coaches, especially the frontal collision occupies 40% of the front of the vehicle, Frontal collisions account for 100% of the front of the vehicle affecting the driver and side-impact collisions that injure the person in the vehicle. Therefore, the research into improving and optimizing the structure is necessary for risk of injury for passengers in frontal accidents. In this paper, we have designed a Shock absorber that can absorb collision energy. Research using HYPERMESH software. to build the finite element model and calculate the meshing to suit the mesh size of 5mm. apply LSDYNA software to calculate structural strength. In the study, for a vehicle to collide with a hard obstacle occupying 100% of the head of the vehicle. Then, the experimental design method, Minitab is used for find the structural parameters in the design. Improvement results showed that the acceleration of the impact on passengers and the driver is decreased by 55,17%. The mass of texture improvements is reduced by 11%, according to the requirements of European Standards ECE R94.
The Effectiveness of Financial Sources for Climate Change in Vietnam
Thi Nhung NGUYEN(Thi Nhung NGUYEN ),Minh Hoa NGUYEN(Minh Hoa NGUYEN ),Thi Phuong Anh VU(Thi Phuong Anh VU ),Thi Hoang Anh DO(Thi Hoang Anh DO ) 한국유통과학회 2023 The Journal of Asian Finance, Economics and Busine Vol.10 No.1
This research aims to give information about the current situation of five financial sources for climate change in Vietnam, including (i) the State budget used by ministries; (ii) the State budget used by provinces; (iii) Bilateral funds; (iv) Multilateral funds; and (v) Private funds, and then classify them in line with the effectiveness. The working paper’s secondary data on spending on CC-related activities, collected from reports of six ministries and 29 provinces, show that the State budget has been crucial in subsidizing CC-related activities in Vietnam. Moreover, domestic investment has accounted for a major part of the total expenditure of ministries and provinces for climate change. In addition, by using primary data collected from surveys sent to twelve experts from 5 groups, such as researchers, practical experts, managers of private funding organizations (such as banks and enterprises), managers of international funding organizations and beneficiaries, and then analyzing the data through the AHP method, the study shows that all climate finance sources in Vietnam are still not very effective. However, private sector funds are considered the most effective financial source for responding to climate change.
Factors Influencing Cost Overruns in Construction Projects of International Contractors in Vietnam
VU, Thong Quoc,PHAM, Cuong Phu,NGUYEN, Thu Anh,NGUYEN, Phong Thanh,PHAN, Phuong Thanh,NGUYEN, Quyen Le Hoang Thuy To Korea Distribution Science Association 2020 The Journal of Asian Finance, Economics and Busine Vol.7 No.9
A construction project is a designed product made up of labors, materials, and installations in the project positioned on the ground and may include the underground and ground section, and the section in water or on the water surface. It is a civil, industrial, transport, agricultural and rural development, infrastructure, or some other. A key phase in the life cycle of these construction projects is the implementation when building products are made directly with workers, equipment, materials, and managers. If there is a lack of management experience, information, and problem-solving solutions to tackle the risks faced by contractors, especially foreign ones, will fail in controlling the project's cost. This study was conducted with investigations, discussions, and evaluation of the factors that lead to cost overruns in the construction projects of international contractors in Vietnam. The principal component analysis (PCA) showed that those factors that influence cost overruns these construction projects fall into five general groups, including factors related to (i) the owners, (ii) the foreign contractors, (iii) the subcontractors and suppliers, (iv) state management, and (v) the project itself. Besides, the study proposes solutions to limit cost overruns in construction projects and improve the profitability of international contractors in Vietnam.
Factors Affecting the Internal Control System: A Case Study of Chemical Enterprises in Vietnam
Hoang Thanh NGO,Tung Dao NGUYEN,Nga Thuy Thi NGUYEN,Ha Ngoc DAO,Anh Phuong Tran VU 한국유통과학회 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.12
The article analyzes the impact of factors affecting the internal control system of chemical enterprises in Vietnam, providing more empirical evidence on factors affecting the system of internal control. Research data is collected in the form of face-to-face interviews and email interviews with managers and employees working in different positions, managers at all levels, chief accountants, and accountants of 52 chemical enterprises in Vietnam. The survey results collected 310 questionnaires. After eliminating the invalid questionnaires due to many blank cells, the authors chose to use 297 questionnaires. Quantitative research was carried out with SPSS 25 software. Research results show that Business Strategy, Organizational Structure, Organization’s perception of the instability of the external environment, and Organizational culture are the factors that positively affect the internal control system of chemical enterprises. This can be explained that, for chemical enterprises, Business strategy, Organizational structure, Organization’s perception of the instability of the external environment, and Good organizational culture will positively impact the internal control system of chemical enterprises. Based on the research results, the authors have proposed recommendations to enhance the effectiveness of the internal control system of chemical enterprises in Vietnam, thereby contributing to improving the performance of enterprises in the chemical Vietnamese.
Debit Card Usage as a Rational Choice: The Moderating Effect of Cash Habit
Dung Phuong Hoang,Thong Huy Vu 중앙대학교 경제연구소 2020 Journal of Economic Development Vol.45 No.1
This research takes a new perspective in explaining the willingness to use debit cards in which the use of debit cards is treated as a rational choice over cash, its alternative means of payment. Upon the adaption of rational choice theory, this study comprehensively identifies the costs and benefits associated with debit card usage and tests the effects of these forces on debit cardholders’ willingness to use the card. Moreover, this study also investigates the influence of cash habit on the willingness to use debit cards. This research employed both the qualitative method with in-depth interview to develop hypotheses and measurement scales and quantitative survey on 376 Vietnamese debit cardholders to test the conceptual model. The findings indicate that the willingness to use debit cards can be significantly encouraged by enhancing perceived benefits and reducing perceived adaptation costs associated with debit card usage. Moreover, although the habit of using cash does not directly affect willingness to use debit cards, it significantly weakens the positive impacts of perceived benefits and strengthens the negative impacts of perceived adaption costs on willingness to use debit cards.
Gradient Field 기 반 3D 포인트 클라우드 지면분할 기법
호앙 ( Hoang Vu ),푸옹 ( Phuong Chu ),조성재 ( Seoungjae Cho ),장위강 ( Weiqiang Zhang ),문명운 ( Mingyun Wen ),심성대 ( Sungdae Sim ),곽기호 ( Kiho Kwak ),조경은 ( Kyungeun Cho ) 한국정보처리학회 2016 한국정보처리학회 학술대회논문집 Vol.23 No.2
This study proposes a novel approach for ground segmentation of 3D point cloud. We combine two techniques: gradient threshold segmentation, and mean height evaluation. Acquired 3D point cloud is represented as a graph data structures by exploiting the structure of 2D reference image. The ground parts nearing the position of the sensor are segmented based on gradient threshold technique. For sparse regions, we separate the ground and nonground by using a technique called mean height evaluation. The main contribution of this study is a new ground segmentation algorithm which works well with 3D point clouds from various environments. The processing time is acceptable and it allows the algorithm running in real time.
Vingroup: The Rising Dragon That Put Vietnam on the Global Map
Giap Vu Nam Duong,Hoang Khanh Linh,정경화,Nguyen Khanh Linh,Nguyen Phuong Hoa,Phan Hai Dang,Thai Thi Phuong Nga Academy of Asian Business (AAB) 2022 Academy of Asian Business Review Vol.8 No.1
Vingroup JSC (formerly Technocom) was founded in Ukraine in 1993 as an instant noodle factory. Since then, the Group has expanded into many other industries, placing tourism and hospitality as their first stepping-stone, then venturing into retail, real estate, education, and recently shifting towards a promising industrial and technology industry. Vingroup has now become the largest conglomerate in Vietnam in terms of market capitalization (VnExpress International, 2019). Having established a solid foundation in the Vietnamese market, Vingroup is eyeing the new promising yet challenging international market, with its competitive advantage in industrials and technology. Standing at a crucial juncture in its ascent, the conglomerate must implement a comprehensive and long-term strategy to reach its next milestone. In 2016, Vingroup primarily focused on four main business segments, encompassing property, hospitality - entertainment, consumer retail, and social infrastructure services. Over the course of two decades, Vinpearl and Vincom have grown into the market-leading hospitality and shopping malls brand in Vietnam. The brands’ establishment coincided with the flourishing economy of the country in the early 2000s, therefore, quickly achieved market dominance. Having such favorable conditions, the Group continued its expansion and investment in other backboned industries, which has reaped correspondingly fruitful results. The key success factors of Vingroup lies in an entrepreneurial mindset, speed, perfectionism and discipline, and last but not least, the national spirit. These traits have allowed the Group to unleash its potential capabilities and go beyond all boundaries. Both small-and-medium-sized companies and big firms can take Vingroup as a lesson for their strategy and corporate culture so that they can lead successful and sustainable growth in today’s competitive market.