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Comparative cost analysis of three different anesthesia methods in gynecological laparoscopic surgery

Xiaohui Chi, Yeling Chen, Mingfeng Liao, Fei Cao, Yuke Tian, Xueren Wang

Frontiers of Medicine 2012, Volume 6, Issue 3,   Pages 311-316 doi: 10.1007/s11684-012-0205-7

Abstract:

In the current study, we assessed and evaluated the costs and benefits of three popular methods of general anesthesia practiced in our department for gynecological laparoscopic surgery in recent years. Sixty adult female patients who underwent elective gynecological laparoscopic surgery under general anesthesia were randomly divided into three groups: group V, group I and group C. In group V, anesthesia was induced intravenously with midazolam, remifentanil, propofol and vecuronium, and maintained with continuous infusion of propofol and remifentanil. In group I, anesthesia was intravenously induced with midazolam, fentanyl, propofol and vecuronium, and maintained with inhaled isoflurane and intravenous bonus of fentanyl. In group C, anesthesia was induced as in group I, but maintained with isoflurane inhalation combined with propofol-remifentanil infusion. All patients received vecuronium for muscle relaxation. Perioperative incidences of complications and total anesthesia costs for patients in all groups were recorded. In addition, postoperative satisfaction of the patients was also noted, and similar outcomes of the satisfaction were reported in all 60 patients. Although there was no statistical significance among groups, the incidence of postoperative nausea and vomiting were higher in group C, and the rates of shivering and the needs for analgesics were higher in group V. Anesthesia costs in group I were the lowest. Therefore, it is concluded that the costs of anesthesia induced with midazolam, fentanyl, propofol, vecuronium, and maintained with isoflurane, fentanyl and vecuronium are cheapest, and there is no significant difference in patients’ satisfaction and safety among the three above-mentioned methods of anesthesia in our department.

Keywords: general anesthesia     economics     cost    

Life-cycle cost analysis of optimal timing of pavement preservation

Zilong WANG,Hao WANG

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 1,   Pages 17-26 doi: 10.1007/s11709-016-0369-3

Abstract: This study developed an integrated life-cycle cost analysis (LCCA) model to quantify the impact of pavementpreservation on agency cost and vehicle operation cost (VOC) and analyzed the optimal timing of preservationtraffic loading and the initial IRI value significantly affects life extension and the benefit of agency costThe benefit in VOC is one to two orders greater in magnitude as compared to the benefit in agency costtiming calculated based on VOC is always earlier than the optimal timing calculated based on agency cost

Keywords: pavement preservation     life-cycle cost analysis     agency cost     vehicle operation cost    

Lifecycle carbon footprint and cost assessment for coal-to-liquid coupled with carbon capture, storage

Frontiers in Energy 2023, Volume 17, Issue 3,   Pages 412-427 doi: 10.1007/s11708-023-0879-3

Abstract: storage technology has the potential to reduce CO2 emissions, but its carbon footprint and costNext, the levelized cost of direct-coal-to-liquid is 648–1027 $/t of oil, whereas that of indirect-coal-to-liquidWhen coupled with the carbon capture utilization and storage technology, the levelized cost of direct-coal-to-liquidtransportation distance has the greatest impact on carbon footprint, while coal price and initial investment costsignificantly affect the levelized cost of coal-to-liquid.

Keywords: coal-to-liquid     carbon capture     utilization and storage (CCUS)     carbon footprint     levelized cost of liquid    

Floating production storage and offloading systems’ cost and motion performance: A systems thinking application

Rini NISHANTH, Andrew WHYTE, V. John KURIAN

Frontiers of Engineering Management 2018, Volume 5, Issue 3,   Pages 357-368 doi: 10.15302/J-FEM-2018022

Abstract: thinking gives a unique opportunity to seek a balance between FPSO technical performance(s), with whole-costfit-for-use design specification options’ that address technical-motion(s), with respective life-cycle costperiods-of-time by diagnosing the problem-at-hand; namely, assessing the antecedents of life-cycle costbeen performed to generate FPSO motion in six degrees of freedom using SESAM DeepC, while life-cycle costLCCA data has been generated to compare the cost of such different mooring options/hull conditions over

Keywords: FPSO     LCCA     spread/turret-mooring     DeepC     cost     motion     soft-systems    

Manufacturing cost constrained topology optimization for additive manufacturing

Jikai LIU, Qian CHEN, Xuan LIANG, Albert C. TO

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 2,   Pages 213-221 doi: 10.1007/s11465-019-0536-z

Abstract: This paper presents a manufacturing cost constrained topology optimization algorithm considering theHowever, metal additive manufacturing is an expensive process, and the high manufacturing cost severely, the proposed algorithm in this research would provide an opportunity to balance the manufacturing costTechnically, the additive manufacturing cost model for laser powder bed-based process is establishedThen, this cost model is transformed into a level set function-based expression, which is integrated

Keywords: topology optimization     manufacturing cost     additive manufacturing     powder bed    

Low-cost adsorbents for urban stormwater pollution control

Yang Deng

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 5, doi: 10.1007/s11783-020-1262-9

Abstract: Abstract • Various low-cost adsorbents are studied for capturing urban stormwater pollutants. • AdsorbentsTo improve the treatment efficacy of stormwater infrastructure, low-cost adsorbents have increasinglyThis article aims to briefly discuss several key aspects and principles for utilization of low-cost adsorbentsTo determine whether a low-cost adsorbent is suitable for stormwater treatment, two aspects should beThe aforementioned principles play a key role in the success of urban stormwater treatment with low-cost

Keywords: Urban stormwater     Runoff pollutants     Low-cost adsorbents     Adsorption     Chemical leaching    

Eigenfrequency analysis of bridges using a smartphone and a novel low-cost accelerometer prototype

Frontiers of Structural and Civil Engineering 2024, Volume 18, Issue 2,   Pages 202-215 doi: 10.1007/s11709-024-1055-5

Abstract: Researchers are paying increasing attention to the development of low-cost and microcontroller-basedParallel with the low-cost sensor development, the use of the embedded accelerometers of smartphonescomparing the noise density and eigenfrequency analysis of a self-developed, validated and calibrated low-costInternet of things based accelerometer LARA (low cost adaptable reliable accelerometer) with those of

Keywords: smartphone     modal analysis     eigenfrequency analysis     low-cost     accelerometers     Arduino     Raspberry     Internet    

Low-cost green building practice in China: Library of Shandong Transportation College

Yingxin ZHU, Borong LIN, Bin YUAN,

Frontiers in Energy 2010, Volume 4, Issue 1,   Pages 100-105 doi: 10.1007/s11708-009-0072-3

Abstract: ranked 1st in the 2nd National Green Buildings Innovation Award in China in March 2007 due to its low costThe total initial cost for the building with the above mentioned integrated technologies was only RMBsquare meter, which was worth spending in China due to the climatic adaptability and the relative low cost

Keywords: green building     low cost technique     energy efficiency     integrated strategy    

Benefit-based cost allocation for residentially distributed photovoltaic systems in China: A cooperative

Xi LUO, Xiaojun LIU, Yanfeng LIU, Jiaping LIU, Yaxing WANG

Frontiers of Engineering Management 2021, Volume 8, Issue 2,   Pages 271-283 doi: 10.1007/s42524-019-0083-7

Abstract: Chinese distributed PV systems has failed to meet expectations because of their irrational profit and costIn this study, the methodology for calculating the levelized cost of energy (LCOE) for PV is thoroughlyAn externality-corrected mathematical model based on Shapley value is established to allocate the costpolicies, and the utility grid should be the highly subsidized participant; (iii) the percentage of cost

Keywords: solar photovoltaic     cost allocation     cooperative game theory     Shapley value     mixed-integer linear programming     levelized cost of energy    

Prediction of cost and emission from Indian coal-fired power plants with CO

Naushita SHARMA, Udayan SINGH, Siba Sankar MAHAPATRA

Frontiers in Energy 2019, Volume 13, Issue 1,   Pages 149-162 doi: 10.1007/s11708-017-0482-6

Abstract: Coal-fired power plants are one of the most important targets with respect to reduction of CO emissions. The reasons for this are that coal-fired power plants offer localized large point sources (LPS) of CO and that the Indian power sector contributes to roughly half of all-India CO emissions. CO capture and storage (CCS) can be implemented in these power plants for long-term decarbonisation of the Indian economy. In this paper, two artificial intelligence (AI) techniques—adaptive network based fuzzy inference system (ANFIS) and multi gene genetic programming (MGGP) are used to model Indian coal-fired power plants with CO capture. The data set of 75 power plants take the plant size, the capture type, the load and the CO emission as the input and the COE and annual CO emissions as the output. It is found that MGGP is more suited to these applications with an value of more than 99% between the predicted and actual values, as against the ~96% correlation for the ANFIS approach. MGGP also gives the traditionally expected results in sensitivity analysis, which ANFIS fails to give. Several other parameters in the base plant and CO capture unit may be included in similar studies to give a more accurate result. This is because MGGP gives a better perspective toward qualitative data, such as capture type, as compared to ANFIS.

Keywords: carbon capture and storage     power plants     artificial intelligence     genetic programming     neuro fuzzy    

A rank-based multiple-choice secretary algorithm for minimising microgrid operating cost under uncertainties

Frontiers in Energy 2023, Volume 17, Issue 2,   Pages 198-210 doi: 10.1007/s11708-023-0874-8

Abstract: secretary algorithm (RMSA) was proposed for microgrid management, to reduce the microgrid operating costThe RMSA enables a microgrid to reduce the operating cost by determining the best electricity purchase

Keywords: energy management systems     demand response     scheduling under uncertainty     renewable energy sources     multiple-choice secretary algorithm    

Feasibility of Scaling up the Cost-Competitive and Clean Electrolytic Hydrogen Supply in China

Guangsheng Pan,Wei Gu,Zhongfan Gu,Jin Lin,Suyang Zhou,Zhi Wu,Shuai Lu,

Engineering doi: 10.1016/j.eng.2024.05.014

Abstract: Based on the incremental cost principle, we quantified the provincial and national clean hydrogen productioncost performance levels in 2030.The results indicated that this mechanism could effectively reduce the production cost of clean hydrogenProvincial cooperation via power transmission lines could further reduce the production cost to 1.72

Keywords: Low-carbon energy system     Electrolytic hydrogen     Renewables     Cost optimization and analysis    

Construction Duration and Cost Simulation via Network-Program-Diagram

Wei-dong Wang,Jie Wu,Kai-jun Wang,Xin Wen

Frontiers of Engineering Management 2014, Volume 1, Issue 2,   Pages 210-217 doi: 10.15302/J-FEM-2014028

Abstract: at the core, the 4D model can incorporate simulation’s resultant data with respect to total time and cost

Keywords: construction duration     construction cost     activity-on-node diagram     building information modeling    

Full lifetime cost analysis of battery, plug-in hybrid and FCEVs in China in the near future

Zhihua CAI, Xunmin OU, Qian ZHANG, Xiliang ZHANG

Frontiers in Energy 2012, Volume 6, Issue 2,   Pages 107-111 doi: 10.1007/s11708-012-0182-1

Abstract: This paper analyzes the full lifetime cost of battery electric vehicles (BEVs), plug-in hybrid electricThe full lifetime cost comprises the initial and periodic cost of owning and operating the vehicle.Compared with the conventional gasoline vehicles, the full lifetime cost of the BEVs, PHEVs and FCEVsalso suggest that with reasonably anticipatable technological progress in the long term, the lifetime costimprovement to decrease the high cost of BEV and to formulate high energy cost of operating the conventional

Keywords: electric vehicle (EV)     life time cost     China    

A low cost wearable optical-based goniometer for human joint monitoring

Chee Kian LIM, Zhiqiang LUO, I-Ming CHEN, Song Huat YEO

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 1,   Pages 13-22 doi: 10.1007/s11465-011-0201-7

Abstract: fiber-based goniometers promise better performance over its mechanical counterpart but due to higher cost

Keywords: optical     goniometer     human-joint measurement    

Title Author Date Type Operation

Comparative cost analysis of three different anesthesia methods in gynecological laparoscopic surgery

Xiaohui Chi, Yeling Chen, Mingfeng Liao, Fei Cao, Yuke Tian, Xueren Wang

Journal Article

Life-cycle cost analysis of optimal timing of pavement preservation

Zilong WANG,Hao WANG

Journal Article

Lifecycle carbon footprint and cost assessment for coal-to-liquid coupled with carbon capture, storage

Journal Article

Floating production storage and offloading systems’ cost and motion performance: A systems thinking application

Rini NISHANTH, Andrew WHYTE, V. John KURIAN

Journal Article

Manufacturing cost constrained topology optimization for additive manufacturing

Jikai LIU, Qian CHEN, Xuan LIANG, Albert C. TO

Journal Article

Low-cost adsorbents for urban stormwater pollution control

Yang Deng

Journal Article

Eigenfrequency analysis of bridges using a smartphone and a novel low-cost accelerometer prototype

Journal Article

Low-cost green building practice in China: Library of Shandong Transportation College

Yingxin ZHU, Borong LIN, Bin YUAN,

Journal Article

Benefit-based cost allocation for residentially distributed photovoltaic systems in China: A cooperative

Xi LUO, Xiaojun LIU, Yanfeng LIU, Jiaping LIU, Yaxing WANG

Journal Article

Prediction of cost and emission from Indian coal-fired power plants with CO

Naushita SHARMA, Udayan SINGH, Siba Sankar MAHAPATRA

Journal Article

A rank-based multiple-choice secretary algorithm for minimising microgrid operating cost under uncertainties

Journal Article

Feasibility of Scaling up the Cost-Competitive and Clean Electrolytic Hydrogen Supply in China

Guangsheng Pan,Wei Gu,Zhongfan Gu,Jin Lin,Suyang Zhou,Zhi Wu,Shuai Lu,

Journal Article

Construction Duration and Cost Simulation via Network-Program-Diagram

Wei-dong Wang,Jie Wu,Kai-jun Wang,Xin Wen

Journal Article

Full lifetime cost analysis of battery, plug-in hybrid and FCEVs in China in the near future

Zhihua CAI, Xunmin OU, Qian ZHANG, Xiliang ZHANG

Journal Article

A low cost wearable optical-based goniometer for human joint monitoring

Chee Kian LIM, Zhiqiang LUO, I-Ming CHEN, Song Huat YEO

Journal Article