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Soliton solution of the generalized modified BBM equation and the generalized Boussinesq equation

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Journal of Ocean Engineering and Science 2017年第4期2卷 248-252页

作者： Ozkan Guner Faculty of Economics and administrative Sciences Department of International TradeCankiri Karatekin UniversityCankiriTurkey

In this paper,we obtained the topological soliton solution of the(1+1)-dimensional generalized modified Benjamin-Bona-Mahony equation and shock wave solution of the generalized Boussinesq *** get that solutions by using solitary wave ansatz in terms of tanh^(p) *** velocity and the free parameters are the physical parameters in the soliton *** can be obtained as functions of the dependent model *** domain restriction were also identified in the *** hope that in nonlinear dynamical system these solutions will be explain some nonlinear physical phenomena.

关键词： Exact solution Topological soliton solution Shock wave solution Generalized modified Benjamin-Bona-Mahony equation Generalized Boussinesq equation

Association of Human Whole-blood NAD+Levels with Nabothian Cyst

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Biomedical and Environmental Sciences 2024年第5期37卷 471-478页

作者： XU Ling WANG Yue Xuan WANG Wei FAN Xue CHEN Xue Yu ZHOU Tian Yun LIU Yu He YU Ye YANG Fan JU Zhen Yu ZHOU Yong WANG Deng Liang Clinical Research Institute Shanghai General HospitalShanghai Jiao Tong University School of MedicineShanghai 200080China NHC Key Lab of Reproduction Regulation Shanghai Engineering Research Center of Reproductive Health Drugs and DevicesShanghai Institute for Biomedical and Pharmaceutical TechnologiesShanghai 200237China department of Applied Statistics Johannes Kepler University LinzLinz 4040Austria Hematology Center Beijing Key Laboratory of Pediatric Hematology OncologyNational Key Discipline of Pediatrics(Capital Medical University)Key Laboratory of Major Diseases in ChildrenMinistry of EducationBeijing Children's HospitalCapital Medical UniversityNational Center for Children's HealthBeijing 100045China department of Biostatistics School of Public HealthCheeloo College of MedicineShandong UniversityJinan 250012ShandongChina Clinical Medicine School of Basic MedicineShanghai Medical College Fudan UniversityShanghai 200032China department of Biochemistry and Molecular Biology Hengyang Medical SchoolUniversity of South ChinaHengyang 421001HunanChina administrative Office Total Quality Management OfficeTotal Quality Management InstituteShanghai General HospitalShanghai Jiao Tong University School of MedicineShanghai 200080China The First Affiliated Hospital of Jinan University Institute of Aging and Regenerative MedicineJinan UniversityJinan 510632GuangzhouChina department of Scientific Research The First Affiliated Hospital of Huzhou UniversityHuzhou 313000ZhejiangChina department of Neurosurgery Neurosurgery Research InstituteThe First Affiliated HospitalFujian Medical UniversityFuzhou 350005FujianChina department of Neurosurgery Binhai Branch of National Regional Medical CenterThe First Affiliated HospitalFujian Medical UniversityFuzhou 350209FujianChina Fujian Provincial Institutes of Brain Disorders and Brain Sciences The First Affiliated HospitalFujian Medical UniversityFuzhou 350005FujianChina Fujian Provincial Clinical Research Center for Neurological

Objective Little is known about the association between whole-blood nicotinamide adenine dinucleotide(NAD^(+))levels and nabothian *** study aimed to assess the association between NAD^(+)levels and nabothian cysts in healthy Chinese *** Multivariate logistic regression analysis was performed to analyze the association between NAD^(+)levels and nabothian *** The mean age was 43.0±11.5 years,and the mean level of NAD^(+)was 31.3±5.3μmol/*** cysts occurred in 184(27.7%)participants,with single and multiple cysts in 100(15.0%)and84(12.6%)participants,*** total nabothian cyst prevalence gradually decreased from37.4%to 21.6%from Q1 to Q4 of NAD^(+)and the prevalence of single and multiple nabothian cysts also decreased across the NAD^(+)*** compared with the highest NAD^(+)quartile(≥34.4μmol/L),the adjusted odds ratios with 95%confidence interval of the NAD^(+)Q1 was 1.89(1.14–3.14)for total nabothian *** risk of total and single nabothian cysts linearly decreased with increasing NAD^(+)levels,while the risk of multiple nabothian cysts decreased more rapidly at NAD^(+)levels of 28.0 to35.0μmol/***:Low NAD^(+)levels were associated with an increased risk of total and multiple nabothian cysts.

关键词： Nicotinamide adenine dinucleotide Nabothian cyst Female Risk factor

Modelling Economic Order Quantities,Considering Buy and Repair Options for Defective Items,and Allowing for Shortages and Inspection Errors

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Journal of the Operations Research Society of China 2021年第4期9卷 757-795页

作者： HarunÖztürk department of Business Administration Faculty of Economics and Administrative SciencesSüleyman Demirel UniversityÇünür32260 IspartaTurkey

Nowadays,it is common for suppliers to be separated from their buyers by great *** means that,if some items in the lot turn out to be defective,the distance makes it uneconomical to order replacements from the original ***,both Type I and Type II errors may occur in the screening process for eliminating defective items and the combination of defective items and inspection errors may lead to *** with these assumptions,this paper develops two distinct *** the first model,defective items are repaired by a local repair shop subject to a repair charge and a mark-up *** the second model,a local supplier replaces the defective with good ones,but at a higher *** expected total profit per cycle is developed,together with the expected cycle time,and,employing the renewal reward theorem,the objective function is derived,from which the optimum values are obtained for the order and shortage *** paper presents numerical results and a discussion for both *** study finds that repairing defective items generally leads to greater total profit than purchasing local replacements.

关键词： Economic order quantity Inspection errors Optimization Gaussian numerical integration Shortages Repair/emergency purchase

Emerging roles of astrocytes in blood-brain barrier disruption upon amyloid-beta insults in Alzheimer's disease

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Neural Regeneration Research 2023年第9期18卷 1890-1902页

作者： Qian Yue Maggie Pui Man Hoi State Key Laboratory of Quality Research in Chinese Medicine Institute of Chinese Medical SciencesUniversity of MacaoMacao Special Administrative RegionChina department of Pharmaceutical Sciences Faculty of Health SciencesUniversity of MacaoMacao Special Administrative RegionChina

Blood-brain barrier disruption occurs in the early stages of Alzheimer’s *** studies indicate a link between blood-brain barrier dysfunction and cognitive decline and might accelerate Alzheimer’s disease *** are the most abundant glial cells in the central nervous system with important roles in the structural and functional maintenance of the blood-brain *** example,astrocytic cove rage around endothelial cells with perivascular endfeet and secretion of homeostatic soluble factors are two major underlying mechanisms of astrocytic physiological *** activation is often observed in Alzheimer’s disease patients,with astrocytes expressing a high level of glial fibrillary acid protein detected around amyloid-beta plaque with the elevated phagocytic ability for *** alte rations in Alzheimer’s disease astrocytes including swollen endfeet,somata shrinkage and possess loss contribute to disruption in vascular integrity at capillary and arte rioles *** addition,Alzheimer’s disease astrocytes are skewed into proinflammatory and oxidative profiles with increased secretions of vasoactive mediators inducing endothelial junction disruption and immune cell *** this review,we summarize the findings of existing literature on the relevance of astrocyte alte ration in response to amyloid pathology in the context of blood-brain barrier ***,we briefly describe the physiological roles of astrocytes in blood-brain barrier ***,we review the clinical evidence of astrocyte pathology in Alzheimer’s disease patients and the preclinical evidence in animal and cellular *** further discuss the structural changes of blood-brain barrier that correlates with Alzheimer’s disease ***,we evaluate the roles of soluble factors secreted by Alzheimer’s disease astrocytes,providing potential molecular mechanisms underlying blood-brain barrier *** conclude with a

关键词： Alzheimer’s disease amyloid-beta astrocyte(astroglial)-endothelial interaction astrocyte pathology blood-brain barrier blood-brain barrier disruption brain endothelial cell neuroinflammation reactive astrocyte

Recent advances on bismuth oxyhalides for photocatalytic CO_(2)reduction

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Journal of Environmental Sciences 2024年第6期140卷 183-203页

作者： Liangpang Xu Jimmy C.Yu Ying Wang department of Chemistry The Chinese University of Hong KongShatinNew TerritoriesHong Kong 999077China

Photocatalytic conversion of CO_(2)into fuels such as CO,CH_(4),and CH_(3)OH,is a promising approach for achieving carbon *** oxyhalides(BiOX,where X=Cl,Br,and I)are appropriate photocatalysts for this purpose due to the merits of visible-light-active,efficient charge separation,and easy-to-modify crystal structure and surface *** practical applications,multiple strategies have been proposed to develop high-efficiency BiOX-based *** review summarizes the development of different approaches to prepare BiOX-based photocatalysts for efficient CO_(2)*** the review,the fundamentals of photocatalytic CO_(2)reduction are ***,several widely used modification methods for BiOX photocatalysts are systematacially discussed,including heterojunction construction,introducing oxygen vacancies(OVs),Bi-enrichment,heteroatom-doping,and morphology ***,the challenges and prospects in the design of future BiOX-based photocatalysis for efficient CO_(2)reduction are examined.

关键词： Bismuth oxyhalides Photocatalysis CO_(2)reduction Modification methods

Motor neuroprosthesis for injured spinal cord:who is an ideal candidate?

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Neural Regeneration Research 2017年第11期12卷 1809-1810页

作者： Monzurul Alam Yong-ping Zheng department of Biomedical Engineering The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina

A spinal cord injury （SCI） shatters people＇s lives in a fraction of a second, leaving them paralyzed, often for the rest of their lives. The devastation caused by SCI is significant around the world. Though the exact prevalence of the injury is un- known, according to recent statistics, the number of injuries is estimated to be between 1.65 and 7.06 million worldwide （Alam and He, 2014）. A recent report from the World Health Organization （WHO） states that, every year, 250,000-500,000 new spinal cord injuries occur around the world （Bickenbach et al., 2013）. Beyond the physical sufferings of these paralyzed individuals, SCI has huge economic and social impacts. In the United States alone,

关键词： Motor neuroprosthesis ideal candidate

Performance Assessment of a Real PV System Connected to a Low-Voltage Grid

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Energy Engineering 2024年第1期121卷 13-26页

作者： Gaber Magdy Mostafa Metwally Adel A.Elbaset Esam Zaki Electrical Engineering department Faculty of Energy EngineeringAswan UniversityAswanEgypt `2Faculty of Engineering King Salman International UniversityEl-Tor46511Egypt Electrical Engineering department Faculty of EngineeringMinia UniversityMiniaEgypt department of Electromechanics Engineering Faculty of EngineeringHeliopolis UniversityCairoEgypt Computer department Faculty of EngineeringModern Academy of Engineering&TechnologyCairoEgypt

The generation of photovoltaic(PV)solar energy is increasing continuously because it is renewable,unlimited,and clean *** the past,generation systems depended on non-renewable sources such as oil,coal,and ***,this paper assesses the performance of a 51 kW PV solar power plant connected to a low-voltage grid to feed an administrative building in the 6th of October City,*** performance analysis of the considered grid-connected PV system is carried out using power system simulator for Engineering(PSS/E)*** the PSS/E program,monitors and uses the power analyzer that displays the parameters and measures some parameters such as current,voltage,total power,power factor,frequency,and current and voltage harmonics,the used inverter from the type of grid inverter for the considered *** results conclude that when the maximum solar radiation is reached,the maximum current can be obtained from the solar panels,thus obtaining the maximum power and power *** total voltage harmonic distortion,a current harmonic distortion within permissible limits using active harmonic distortion because this type is fast in processing up to 300 *** connection between solar stations and the national grid makes the system more efficient.

关键词： Low-voltage grid photovoltaic(PV)system total harmonic distortion grid-connected PV system

Bright and dark soliton solutions for some nonlinear fractional differential equations

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Chinese Physics B 2016年第3期25卷 52-59页

作者： Ozkan Guner Ahmet Bekir Cankiri Karatekin University Faculty of Economics and Administrative Sciences Department of International Trade CankiriTurkey Eskisehir Osmangazi University Art-Science Faculty Department of Mathematics-Computer Eskisehir Turkey

In this work, we propose a new approach, namely ansatz method, for solving fractional differential equations based on a fractional complex transform and apply it to the nonlinear partial space-time fractional modified Benjamin-Bona- Mahoney （mBBM） equation, the time fractional mKdV equation and the nonlinear fractional Zoomeron equation which gives rise to some new exact solutions. The physical parameters in the soliton solutions： amplitude, inverse width, free parameters and velocity are obtained as functions of the dependent model coefficients. This method is suitable and more powerful for solving other kinds of nonlinear fractional PDEs arising in mathematical physics. Since the fractional deriva- tives are described in the modified Riemann-Liouville sense.

关键词： exact solutions ansatz method space-time fractional modified Benjamin-Bona-Mahoney equa-tion time fractional mKdV equation

Optogenetic activation of intracellular signaling based on light-inducible protein-protein homo-interactions

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Neural Regeneration Research 2022年第1期17卷 25-30页

作者： Peiyuan Huang Zhihao Zhao Liting Duan department of Biomedical Engineering The Chinese University of Hong KongSha TinHong Kong Special Administrative RegionChina Shun Hing Institute of Advanced Engineering(SHIAE) The Chinese University of Hong KongSha TinHong Kong Special Administrative RegionChina

Dynamic protein-protein interactions are essential for proper cell *** events—physical interactions between the same type of proteins—represent a pivotal subset of protein-protein interactions that are widely exploited in activating intracellular signaling *** of modulating protein-protein interactions with spatial and temporal resolution are greatly desired to decipher the dynamic nature of signal transduction *** emerging optogenetic technology,based on genetically encoded light-sensitive proteins,provides promising opportunities to dissect the highly complex signaling networks with unmatched specificity and spatiotemporal *** we review recent achievements in the development of optogenetic tools enabling light-inducible protein-protein homo-interactions and their applications in optical activation of signaling pathways.

关键词： cryptochrome 2 homo-interaction intracellular signaling light light-induced protein-protein interaction light-oxygen-voltage-sensing domain light-sensitive proteins optogenetics phytochrome signal transduction