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Home Monitoring of Pets Based on AIoT

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Computer Systems Science & Engineering 2022年第10期43卷 59-75页

作者： Wen-Tsai sung sung-Jung Hsiao Department of Electrical Engineering National Chin-Yi University of TechnologyTaichung City411030Taiwan Department of Information Technology Takming University of Science and TechnologyTaipei City11451Taiwan

With technological and social development in recent decades,people have begun pursuing more comfortable lives that frequently feature household pets that are treated like members of the *** average,one out of every three households has a *** has also led to the creation and growth of many businesses in the pet industry.A few companies have developed a system that allows busy office workers to remotely care for pets at home based on the Internet of Things and an intelligent adjustment *** owners of two dogs,the authors of this study observed their pets’living habits and recorded environmental conditions that appear suitable for *** data were then used to develop an automatic control system to care for *** observational data on the pets’habits and environment were written in a program in Arduino by using the ESP8266 Wi-Fi *** module and booster module control is the switch and setting of various household *** to the loop setting of the program,the system does not need to manually switch or adjust the electrical settings of the ***,the pet's living environment is assessed by using various *** use of Arduino programs helps develop a system that can automatically adjust the environment to one that is most suitable for the pet's comfort.

关键词： Remote medical care active RFID positioning physiological signal

Mechanical and hydraulic properties of carbonate rock:The critical role of porosity

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Journal of Rock Mechanics and Geotechnical Engineering 2023年第4期15卷 814-825页

作者： Kam ng J.Carlos Santamarina Department of Civil and Architectural Engineering and Construction Management University of WyomingLaramieWY82071USA Physical Science and Engineering Division King Abdullah University of Science and TechnologyThuwal23955-6900Saudi Arabia

Carbonate rocks are extensively used in civil infrastructure and play a critical role in geoenergy geoengineering,either as hydrocarbon reservoirs or potential repositories for CO_(2)geological *** genesis and diagenetic overprint determine the properties of carbonate *** study combines recent data gathered from Madison Limestone and an extensive dataset compiled from published sources to analyze the hydraulic and mechanical properties of limestone carbonate *** models and data analyses recognize the inherently granular genesis of carbonate rocks and explain the strong dependency of physical properties on *** asymptotically-correct power model in terms of(1-Ф/Ф*)a is a good approximation to global trends of unconfined stiffness E and unconfined compressive strength UCS,cohesive intercept in Mohr-Coulomb failure envelopes,and the brittle-toductile transition *** power model is the analytical solution for the mechanical properties of percolating granular *** adopted a limiting granular porosityФ*=0.5 for all models,which was consistent with the loosest packing of monosize *** fitted power model has exponent(α=2)in agreement with percolation theory and highlights the sensitivity of mechanical properties to *** and models confirm a porosity-independent ratio between unconfined stiffness and strength,and the ratio follows a log-normal distribution with mean(E/UCS)≈*** high angle of internal shear strength measured for carbonate rocks reflects delayed contact failure with increased confinement,and it is not sensitive to *** spans more than six orders of *** size controls pore size and determines the reference permeability k^(*)at the limiting porosityФ*=*** a given grain size from fine to coarse-grained dominant carbonates,permeability is very sensitive to changes in porosity,suggesting preferential changes in the internal pore network during compaction.

关键词： Rock porosity Carbonate permeability Rock unconfined stiffness Unconfined compressive strength(UCS)

Retrotracheal thymoma masquerading as esophageal submucosal tumor

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World Journal of Gastroenterology 2005年第20期11卷 3165-3166页

作者： Sheung-Fat Ko Yuan-Hsiung Tsai Hsuan-Ying Huang Shu-Hang ng Fu-Ming Fang Yeh Tang Ming-Tse sung Ming-Jang Hsieh Departments of Radiology Chang Gung University Chang Gung Memorial Hospital at Kaohsiung Kaohsiung Hsien Taiwan China Departments of Pathology Chang Gung University Chang Gung Memorial Hospital at KaohsiungKaohsiung Hsien Taiwan China Departments of Oncology Chang Gung University Chang Gung Memorial Hospital at Kaohsiung Kaohsiung Hsien Taiwan China Departments of Thoracic Surgery Chang Gung Memorial Hospital at Kaohsiung Kaohsiung Hsien Taiwan China

A 42-year-old man presented with a two-year history of progressive dysphagia and hoarseness. Esophagogram and endoscopy revealed submucosal mass effect on the upper esophagus. Computed tomography and magnetic resonance imaging revealed an elongated mass in the retrotracheal region of the lower neck with extension to the posterior mediastinum. Partial tumor resection and histopathological evaluation revealed a WHO type B2 thymoma. Adjuvant radiation and chemotherapy were subsequently administered resulting in complete tumor regression. To our knowledge, this is the first report of ectopic retrotracheal thymoma with clinical and imaging manifestations mimicking those for esophageal submucosal tumor.

关键词： Dysphagia Hoarseness

Local Energy and Planned Ramping Product Joint Market Based on a Distributed Optimization Method

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CSEE Journal of Power and Energy Systems 2021年第6期7卷 1357-1368页

作者： Zhong Zhang Furong Li sung-Won Park sung-Yong Son Dalian University of Technology DalianChina Department of Electronic and Electrical Engineering University of BathBathU.K. the University of Bath BathU.K. the Department of Electrical and Electronic Engineering Youngsan UniversitySouth Korea Gachon University SeoulSouth Korea

High penetration of renewable energy generation(REG)in the distribution system increases both the power uncertainty at a given interval and the power variation between two *** markets addressing power uncertainty have been widely ***,there is a lack of market mechanisms regarding the power variation of the load and *** paper thus defines a planned ramping(PR)product to follow the net load variation and extends the local energy market to include the trading of PR *** are economically compensated for their PR *** models of dispatchable generators and flexible load aggregators in the joint market are *** solve the market problem in polynomial time,a distributed market clearing method is developed based on the ADMM *** joint market is tested on a modified IEEE 33-bus *** verifies that introducing the PR market can encourage flexible loads to provide more PR service to accommodate the net load *** such,the ramping cost of dispatchable generators is reduced by 29.09%in the test *** planned energy curtailment from REG is also *** computational efficiency of the proposed distributed clearing method is validated by comparing it with a centralized method.

关键词： Distributed market clearing flexible load aggregator local electricity market planned ramping product renewable energy generation

Preconditioned Iterative Methods for Algebraic Systems from Multiplicative Half-Quadratic Regularization Image Restorations

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Numerical Mathematics(Theory,Methods and Applications) 2010年第4期3卷 461-474页

作者： Michael K.ng Department of Mathematics Hong Kong Baptist UniversityKowloon TongHong Kong

Image restoration is often solved by minimizing an energy function consisting of a data-fidelity term and a regularization term.A regularized convex term can usually preserve the image edges well in the restored *** this paper,we consider a class of convex and edge-preserving regularization functions,i.e.,multiplicative half-quadratic regularizations,and we use the Newton method to solve the correspondingly reduced systems of nonlinear *** each Newton iterate,the preconditioned conjugate gradient method,incorporated with a constraint preconditioner,is employed to solve the structured Newton equation that has a symmetric positive definite coefficient matrix. The eigenvalue bounds of the preconditioned matrix are deliberately derived,which can be used to estimate the convergence speed of the preconditioned conjugate gradient *** use experimental results to demonstrate that this new approach is efficient, and the effect of image restoration is reasonably well.

关键词： Edge-preserving image restoration multiplicative half-quadratic regularization Newton method preconditioned conjugate gradient method constraint preconditioner eigenvalue bounds

Follow up of serial urea breath test results in patients after consumption of antibiotics for non-gastric infections

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World Journal of Gastroenterology 2002年第4期8卷 703-706页

作者： Wai-Keung Leung Lawrence Cheung-Tsui Hung Carrie Ka-Li Kwok Rupert Wing-Loong Leong Daniel Kwok-Keung ng Joseph Jao-Yiu sung Department of Medicine & Therapeutics Prince of Wales Hospitalthe Chinese University of Hong KongShatinHong KongChina Department of Paediatrics Kwong Wah HospitalKowloonHong KongChina

AIM: The widespread use of antibacterial therapy hasbeen suggested to be the cause for the decline in theprevalence of Helicobacter pyloriinfection. This studyexamine the serial changes of urea breath test resultsin a group of hospitalized patients who were givenantibacterial therapy for non-gastric ***: Thirty-five hospitalized patients who weregiven antibacterial therapy for clinical infections,predominantly chest and urinary infections, werestudied. Most (91%) patients were given singleantibiotic of either a penicillin or cephalosporin *** 13C-urea breath tests were performed within 24hours of initiation of antibiotics, at one-week and atsix-week post-therapy. H. pylori infection wasdiagnosed when one or more urea breath tests ***: All 35 patients completed three serial ureabreath tests and 26 (74 %) were H. pylori-positive. Ten(38 %) H. pylori-infected patients had at least onenegative breath test results during the study *** medium delta 13C values were significantly lowerat baseline (8.8) than at one-week (20.3) and six-week(24.5) post-treatment in H. pylori-positive individuals(P=0.022). Clearance of H. pyloriat six-week was onlyseen in one patient who had received anti-helicobactertherapy from another ***: Our results suggested that one-third ofH. pylori-infected individuals had transient false-negative urea breath test results during treatment withantibacterial agent. However, clearance of H. pyloriinfection by regular antibiotic consumption is rare.

关键词：抗生素 HP感染连续尿素呼吸试验耐药

Production of rhamnolipids-producing enzymes of Pseudomonas in E. coli and structural characterization

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Frontiers of Chemical Science and Engineering 2017年第1期11卷 133-138页

作者： Kata Kiss Wei Ting ng Qingxin Li Institute of Chemical & Engineering Sciences Agency for Science Technology and Research Jurong Island 627833 Singapore

Rhamnolipids are a class ofbiosurfactants that have a great potential to be used in industries. Five proteins/enzymes, namely RhlA, RhlB, RhlC, RhlG and RhlI, are critical for the production of rhamnolipids in Pseudomonas aeruginosa. Four of the 5 proteins except RhlC were successfully over-expressed in E. coli and three of them （RhlA, RhlB and RhlI） were purified and obtained in milligram quantities. The purified proteins were shown to be folded in solution. Homology models were built for RhlA, RhlB and RhlI. These results lay a basis for further structural and functional characterization of these proteins in vitro to favor the construction of super strains for rhamnolipids production.

关键词： rhamnolipids Pseudomonas RhlA RhlB,RhlI protein folding

The effect of variable viscosity on the flow and heat transfer of a viscous Agwater and Cu-water nanofluids

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Journal of Hydrodynamics 2013年第1期25卷 1-9页

作者： VAJRAVELU Kuppalapalle PRASAD Kerehalli Vinayaka ng Chiu-On Department of Mathematics University of Central Florida Department of Mathematics VSK University Department of Mechanical Engineering The University of Hong Kong

A numerical study is carried out to study the effects of the temperature dependent viscosity on the flow and heat transfer of a nanofluid over a flat surface in the presence of viscous dissipation. The governing nonlinear partial differential equations are transformed into nonlinear ordinary differential equations, and are solved numerically by the Keller-box method. The numerical results indicate that the effect of nanoparticle volume fraction is to increase the heat transfer and hence enhance the thermal boundary layer thickness. This is true even in the presence of variable viscosity and the viscous dissipation. Furthermore, the results obtained for heat transfer characteristics with nanoparticles reveal many interesting behaviors that warrant further study on the effects of the ＂nano-solid-particles＂.

关键词： nanofluid particles variable viscosity boundary layers viscous dissipation Keller-box method

Diffusion tensor tractography characteristics of axonal injury in concussion/mild traumatic brain injury

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Neural Regeneration Research 2022年第5期17卷 978-982页

作者： sung Ho Jang You sung Seo Department of Physical Medicine and Rehabilitation College of MedicineYeungnam UniversityDaeguRepublic of Korea

The main advantage of diffusion tensor tractography is that it allows the entire neural tract to be *** addition,configurational analysis of reconstructed neural tracts can indicate abnormalities such as tearing,narrowing,or discontinuations,which have been used to identify axonal injury of neural tracts in concussion *** review focuses on the characteristic features of axonal injury in concussion or mild traumatic brain injury(m TBI)patients through the use of diffusion tensor *** injury in concussion(m TBI)patients is characterized by their occurrence in long neural tracts and multiple injuries,and these characteristics are common in patients with diffuse axonal injury and in concussion(m TBI)patients with axonal ***,the discontinuation of the corticospinal tract is mostly observed in diffuse axonal injury,and partial tearing and narrowing in the subcortical white matter are frequently observed in concussion(m TBI)patients with axonal *** difference appears to be attributed to the observation that axonal injury in concussion(m TBI)patients is the result of weaker forces than those producing diffuse axonal *** addition,regarding the fornix,in diffuse axonal injury,discontinuation of the fornical crus has been frequently reported,but in concussion(m TBI)patients,many collateral branches form in the fornix in addition to these findings in many case *** is presumed that the impact on the brain in TBI is relatively weaker than that in diffuse axonal injury,and that the formation of collateral branches occurs during the fornix recovery *** the occurrence of axonal injury in multiple areas of the brain is an important feature of diffuse axonal injury,case studies in concussion(m TBI)have shown that axonal injury occurs in multiple neural *** axonal injury lesions in m TBI patients may persist for approximately 10 years after injury onset,the characteristics of axonal injury in co

关键词： axonal injury brain injury concussion diffusion tensor imaging diffusion tensor tractography mild traumatic brain injury neural tract