Article
Thermodynamics
Akhil Dass, Sateesh Gedupudi
Summary: The study presents a 1-D numerical modelling of inclined closed loop buoyancy driven heat exchangers, verifying the model's accuracy in predicting transient behavior in comparison to 3-D CFD studies. It was found that wall conduction and inclination significantly affect the system's dynamics.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2021)
Review
Endocrinology & Metabolism
Viral N. Shah, Satish K. Garg
Summary: The study discusses the benefits of the HCL system in improving glycemic control and reducing hypoglycemia, highlighting the importance of standardized reporting for easy interpretation of data. It introduces the concept of an artificial pancreas (AP) Dashboard with seven components to aid providers and patients in understanding HCL data and improving glycemic outcomes.
DIABETES TECHNOLOGY & THERAPEUTICS
(2021)
Article
Biology
Weiwei Ai, Vinod Suresh, Partha S. Roop
Summary: The study introduces a closed-loop respiratory pacemaker model that can automatically adapt to various respiratory conditions and metabolic demands, providing superior treatment compared to open-loop operation. By incorporating model design and biofeedback signals, the system can maintain physiological oxygen levels effectively.
COMPUTERS IN BIOLOGY AND MEDICINE
(2022)
Article
Chemistry, Multidisciplinary
Changlin Wang, Fabian Eisenreich, Zeljko Tomovic
Summary: Organic aerogels, which are highly porous and ultralight materials, have diverse applications in thermal insulation, energy storage, and chemical absorption. A new type of polyimine aerogels containing reversible chemical bonds has been developed to address the environmental concerns and low thermal stability of conventional organic aerogels. These recyclable and bio-based polyimine aerogels exhibit excellent properties such as low shrinkage, high porosity, large surface area, thermal stability, and flame resistance, making them promising candidates for advanced and sustainable superinsulating materials.
ADVANCED MATERIALS
(2023)
Article
Automation & Control Systems
Yang Zheng, Baibo Wu, Yuyang Chen, Lingyun Zeng, Guoying Gu, Xiangyang Zhu, Kai Xu
Summary: The paper proposes a 12-section cable-driven hyper-redundant manipulator with 24 degrees of freedom and closed-loop control, featuring customized magnetic angle sensors and a carefully designed sensor communication network for rapid joint feedback. A novel puller-follower controller is introduced to properly actuate three cables for each universal joint connecting adjacent manipulator sections.
Article
Engineering, Electrical & Electronic
Junyi Hu, Shuang Liu, Lu Liu, Huilian Ma
Summary: This article proposes and demonstrates the closed-loop scheme of a broadband source-driven RFOG. By introducing the period-stacking method and compensating for the modulated frequency, the performance of the system is successfully improved.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Engineering, Biomedical
Zhaohuan Ding, Yong Wang, Jiaxi Li, Xiaoli Li
Summary: This study investigates the characteristics of closed-loop TMS-EEG and reveals the improved repeatability compared to open-loop TMS-EEG. The study also reveals the dependence of closed-loop TMS-EEG on occipital alpha phase and the changes in TMS-evoked potentials. The findings provide support for the dependence of EEG reactivity on cortical oscillation phase under TMS stimulation.
JOURNAL OF NEURAL ENGINEERING
(2022)
Article
Management
Prem Chhetri, Mahsa Javan Nikkhah, Hamed Soleimani, Shahrooz Shahparvari, Ashkan Shamlou
Summary: This paper designs an optimal closed-loop supply chain network to examine the possibility of remanufacturing end-of-life ships. By using a mixed-integer linear programming model, the optimal number and location of remanufacturing for building EoL ships are determined, and the required capital and variable costs for establishing and operating remanufacturing centers are calculated. If remanufacturing 30 ships a year, the discounted payback period of this project is estimated to be less than two years.
INTERNATIONAL JOURNAL OF LOGISTICS MANAGEMENT
(2022)
Article
Computer Science, Interdisciplinary Applications
D. G. Mogale, Arijit De, Abhijeet Ghadge, Emel Aktas
Summary: This study develops a multi-objective optimization model for sustainable closed-loop supply chain network problem. The proposed model considers the inherent complexity of the supply chain and factors such as price-sensitive demand, consumer's incentives, and different quality levels of the product. The results show that the proposed two-stage algorithm provides robust outcomes and is computationally less expensive. The study emphasizes the positive effects of incentive pricing in the reverse logistics network.
COMPUTERS & INDUSTRIAL ENGINEERING
(2022)
Article
Computer Science, Information Systems
Monica Patrascu, Vlad Constantinescu
Summary: This paper analyzes the closed-loop stability of a traffic process with a relay controller and negative feedback, taking into account multiple time delays in the road segment and the controller.
Article
Materials Science, Composites
Thomas Andre, Rachel Couvreur, Sandeep Tamrakar, Deborah Mielewski, Alper Kiziltas
Summary: This article investigates the influence of adding recycled thermoplastic elastomer (TPE) and recycled thermoplastic polyurethane (TPU) powder as filler to polyurethane (PU) foam on its thermal stability, mechanical, physical, and sound absorption properties. The addition of 2.5 wt% TPE powder significantly improved the compression modulus, tear resistance, and Young's Modulus, while the addition of 2.5 wt% TPU powder showed improvement in sound absorption. Incorporating additive manufacturing waste into PU foam as a filler reduces landfill waste and creates a superior foam product. This article showcases the benefits of building a closed-loop plastic industry to enhance polymer materials and protect the environment.
POLYMER COMPOSITES
(2023)
Article
Nuclear Science & Technology
Solomon Bello, Puzhen Gao, Samuel Abiodun Olatubosun, Yuqi Lin
Summary: The experimental study investigated flow characteristics during loss of coolant to the heat exchanger in a closed rectangular natural circulation system with a single heated channel, at different heating powers and system pressures. The results showed a transition from stable flow to transient instability, with a subsequent loss of stability as heat flux occurred and the heat exchanger outlet temperature approached its inlet temperature. This study contributes to a better understanding of flow behavior during LOHS in advanced reactors and the utilization of natural circulation systems.
NUCLEAR ENGINEERING AND DESIGN
(2021)
Article
Thermodynamics
D. Chandan, U. C. Arunachala, K. Varun
Summary: This study investigates the effect of air injection in a horizontal heater horizontal cooler configuration to stabilize the loop and increase the flow rate. The results show that with proper injection position and rate, the flow rate can be significantly improved while maintaining a stable loop behavior.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2023)
Article
Energy & Fuels
Hannah R. Doran, Theo Renaud, Gioia Falcone, Lehua Pan, Patrick G. Verdin
Summary: The research suggests the need for alternative deep geothermal designs to ensure a secure and efficient geothermal energy supply. Through an in-depth sensitivity analysis, it was found that the energy flow rate of DBHE can reach 1.5 MW with an increase in annulus radii and an imposed mass flow rate of 5 kg/s, while at 3 kg/s, the energy flow rate of DBHE is only about 3.5 times lower than the conventional NWG 55-29 design. The sensitivity analysis still provides valuable insights into understanding the thermodynamics within the wellbore.
Article
Thermodynamics
Gaosheng Wang, Xianzhi Song, Guofeng Song, Yu Shi, Chao Yu, Fuqiang Xu, Jiayan Ji, Zihao Song
Summary: This study focuses on developing a geothermal system using a horizontal-well to exploit deep hydrothermal resources, considering the complex convection process in the reservoir. The results show that forced convection can greatly enhance heat transfer, emphasizing the importance of factors such as horizontal length, permeability, and reverse circulation in improving heat extraction. Compared to vertical well systems, horizontal-well systems can fully extract heat stored in the reservoir, providing valuable insights for scientific research and engineering applications.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Fisheries
T. R. Carruthers, A. R. Hordyk
CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
(2019)
Editorial Material
Fisheries
Adrian R. Hordyk, Jeremy D. Prince, Thomas R. Carruthers, Carl J. Walters
ICES JOURNAL OF MARINE SCIENCE
(2019)
Article
Fisheries
Quang C. Huynh, Nancie J. Cummings, John M. Hoenig
ICES JOURNAL OF MARINE SCIENCE
(2020)
Article
Fisheries
Quang C. Huynh, Adrian R. Hordyk, Robyn E. Forrest, Clay E. Porch, Sean C. Anderson, Thomas R. Carruthers
FISH AND FISHERIES
(2020)
Article
Ecology
Jeremy Prince, Steven Creech, Hawis Madduppa, Adrian Hordyk
REGIONAL STUDIES IN MARINE SCIENCE
(2020)
Article
Ecology
Abdul Halim, Neil R. Loneragan, Budy Wiryawan, Adrian R. Hordyk, M. Fedi A. Sondita, Irfan Yulianto
REGIONAL STUDIES IN MARINE SCIENCE
(2020)
Article
Fisheries
Abdulrahman Ben-Hasan, Carl Walters, Adrian Hordyk, Villy Christensen, Mohsen Al-Husaini
Summary: The study highlights the simultaneous occurrence of growth and recruitment overfishing in a fishery, especially detrimental to long-lived species. It demonstrates that improving size limit policy can effectively address both issues. Selecting immature fish at high exploitation rates leads to a decrease in recruitment and biomass, however, adjusting the age at vulnerability and regulating exploitation rates can significantly increase biomass and catch levels.
MARINE AND COASTAL FISHERIES
(2021)
Article
Fisheries
Tobias K. Mildenberger, Casper W. Berg, Alexandros Kokkalis, Adrian R. Hordyk, Chantel Wetzel, Nis S. Jacobsen, Andre E. Punt, J. Rasmus Nielsen
Summary: The study compares the effectiveness of two precautionary approaches in recovering over-exploited fish stocks, finding that both methods reduce the risk of overfishing at the expense of expected yield. The success of these strategies depends on HCRs, life-history parameters, and the level of scientific uncertainty.
FISH AND FISHERIES
(2022)
Article
Fisheries
Timothy J. Barrett, Adrian R. Hordyk, Melanie A. Barrett, Michael R. van den Heuvel
Summary: The relationships between fecundity and size of Atlantic herring were studied in different spawning areas off the coast of Nova Scotia in 2019 and 2020. Significant differences in fecundity were observed among spawning areas and between years. The study also found that failing to account for fecundity and assuming proportionality between egg production and spawning stock biomass can lead to an overestimate of stock status.
CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
(2022)
Article
Fisheries
Quang Huynh, Christopher M. Legault, Adrian R. Hordyk, Tom R. Carruthers
Summary: This study demonstrates the impact of retrospective patterns on stock assessment and proposes a method using closed-loop simulation to evaluate the management objectives. By studying Gulf of Maine cod and New England pollock, we found that downward adjustment based on Mohn's rho is more beneficial for achieving biomass objectives in cod, while both downward adjustment and model averaging are robust for pollock but result in reduced catch.
ICES JOURNAL OF MARINE SCIENCE
(2022)
Article
Environmental Studies
Abdul Halim, Neil R. Loneragan, Budy Wiryawan, Rod Fujita, Dedi S. Adhuri, Adrian R. Hordyk, M. Fedi A. Sondita
Article
Environmental Studies
Abdul Halim, Budy Wiryawan, Neil R. Loneragan, Adrian Hordyk, M. Fedi A. Sondita, Alan T. White, Sonny Koeshendrajana, Toni Ruchimat, Robert S. Pomeroy, Christiana Yuni