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Application of Metaheuristic Algorithms for Optimizing Longitudinal Square Porous Fins

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Computers, Materials & Continua 2021年第4期67卷 73-87页

作者： Samer H.Atawneh Waqar A.Khan nawaf n.Hamadneh Adeeb M.Alhomoud College of Computing and Informatics Saudi Electronic UniversityRiyadh11673Saudi Arabia Department of Mechanical Engineering College of EngineeringPrince Mohammad bin Fahd UniversityAl Khobar31952Saudi Arabia Department of Basic Sciences College of Science and Theoretical StudiesSaudi Electronic UniversityRiyadh11673Saudi Arabia

The objectives of this study involve the optimization of longitudinal porous fins of square cross-section using metaheuristic algorithms.A generalized nonlinear ordinary differential equation is derived using Darcy and Fourier’s laws in the energy balance around a control volume and is solved numerically using rFK 45 *** temperature of the base surface is higher than the fin surface,and the fin tip is kept adiabatic or cooled by convection heat *** other pertinent parameters include rayleigh number(100≤ra≤10^(4)),Darcy number,(10^(−4)≤Da≤10^(−2)),relative thermal conductivity ratio of solid phase to fluid(1000≤kr≤8000),nusselt number(10≤nu≤100),porosity(0.1≤φ≤0.9).The impacts of these parameters on the entropy generation rate are investigated and optimized using metaheuristic *** computer science,metaheuristic algorithms are one of the most widely used techniques for optimization *** this research,three metaheuristic algorithms,including the firefly algorithm(FFA),particle swarm algorithm(PSO),and hybrid algorithm(FFAPSO)are employed to examine the performance of square *** is demonstrated that FFA-PSO takes fewer iterations and less computational time to converge compared to other algorithms.

关键词： Optimization firefly algorithm particle swarm algorithm hybrid algorithms porous media entropy generation rate

番茄成熟过程中酸性和碱性过氧化物酶活性变化

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北方园艺 1991年第9期 19-21页

作者： C.r罗森 J.n尼古拉斯乔爱民河南省农科院园艺所

对番茄(Lycopersicon esculentum *** Dade)果实从绿色到红熟6个成熟期中酸性和碱性过氧化物酶的活性进行了测定。酸性和碱性过氧化物酶的活性均在粉红期达到最高,但碱性过氧化物酶活性的相对增长更为明显。碱性过氧化物酶中过氧化物酶... 详细信息

对番茄(Lycopersicon esculentum *** Dade)果实从绿色到红熟6个成熟期中酸性和碱性过氧化物酶的活性进行了测定。酸性和碱性过氧化物酶的活性均在粉红期达到最高,但碱性过氧化物酶活性的相对增长更为明显。碱性过氧化物酶中过氧化物酶、IAA 氧化酶、ACC 氧化酶的活性的变化与乙烯生成的变化相平行。但有钙存在时,过氧化物酶的活化程度在整个成熟期一直是稳定的,而碱性过氧化物酶中的 IAA 氧化酶和 ACC 氧化酶则只有在粉红期才被活化。

关键词：番成熟过氧化物酶活性变化

Hydrogel scaffolds based on blood plasma cryoprecipitate and collagen derived from various sources: Structural, mechanical and biological characteristics

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Bioactive Materials 2019年第1期4卷 334-345页

作者： Marfa n.Egorikhina Diana Ya Aleynik Yulia P.rubtsova Grigory Ya Levin Irina n.Charykova Ludmila L.Semenycheva Marina L.Bugrova Evgeniy A.Zakharychev Federal State Budgetary Educational Institution of Higher Education«Privolzhsky research Medical University»of the Ministry of Health of the russian Federation Nizhny NovgorodRussian Federation Lobachevsky State University of nizhny novgorod Nizhny NovgorodRussian Federation

At present there is a growing need for tissue engineering products,including the products of *** hydrogel scaffolds have a number of advantages and are increasingly being used to provide means of cell transfer for therapeutic treatments and for inducing tissue *** work presents original hydrogel biopolymer scaffolds based on a blood plasma cryoprecipitate and collagen and formed under conditions of enzymatic *** differently originated collagens were used for the scaffold *** this work the structural and mechanical characteristics of the scaffold were *** was found that,depending on the origin of collagen,scaffolds possess differences in their structural and mechanical *** types of hydrogel scaffolds have good biocompatibility and provide conditions that maintain the three-dimensional growth of adipose tissue stem ***,scaffolds based on such a blood plasma cryoprecipitate and collagen have good prospects as cell carriers and can be widely used in regenerative medicine.

关键词： Biopolymers Blood plasma cryoprecipitate Collagen Hydrogel scaffolds Stem cells

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铁鞣新方法

中国皮革 2007年第9期36卷 62-64页

作者： n K Chandra Babu r Karthikeyan r ramesh Usha ramamurthi T ramasami 范贵洋李彦春印度中央皮革研究所山东轻工业学院山东济南250100

将铁鞣与铬鞣进行了优化结合,这种鞣制技术不仅可以加工出质量上呈的皮革制品,同时又可以满足废液中铬与铁的含量低于100mg/kg的标准。此工艺制造的皮革可耐沸水试验,阐述了其鞣制技术和鞣制机理。对铁鞣法在加工山羊绒面革和绵羊全粒... 详细信息

将铁鞣与铬鞣进行了优化结合,这种鞣制技术不仅可以加工出质量上呈的皮革制品,同时又可以满足废液中铬与铁的含量低于100mg/kg的标准。此工艺制造的皮革可耐沸水试验,阐述了其鞣制技术和鞣制机理。对铁鞣法在加工山羊绒面革和绵羊全粒面服装革中出现的问题进行了研究。用扫描电镜对鞣革的结构特性进行了研究,对成革的物理机械性能及染色特性也做了分析和阐述。

关键词：铁鞣铬鞣结合鞣

relationship between diabetes mellitus and cataract in Hungary

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International Journal of Ophthalmology(English edition) 2020年第5期13卷 788-793页

作者： Anita Pék Dorottya Szabó Gábor LászlóSándor Gábor Tóth András Papp Zoltán Zsolt nagy Hans Limburg János németh Department of Ophthalmology Semmelweis UniversityMária u.39.Budapest 1085Hungary Department of Ophthalmology Petz Aladár HospitalVasvári Pál u.2-4.Győr 9023Hungary Health Information Services Nijenburg 32LC1613 Grootebroekthe Netherlands

AIM:To examine the coexistence of diabetes mellitus(DM)and cataract in *** effects of DM on the cataract surgical results were also in the focus of ***:Statistical data analysis of the results of the rapid Assessment of Avoidable Blindness with Diabetic retinopathy(rAAB+Dr)module conducted in Hungary in *** cross-sectional,population-based,national survey included 3523 people aged 50 years and *** of the survey were examined *** acuity,main cause for visual impairment(using direct and indirect ophthalmoscopes),in case of best corrected visual acuity(BCVA)≤0.5 and blood glucose level(random test with glucometer)were ***:The prevalence of cataract was 23.4%,and DM was 20.0%.The occurrence of cataract steadily increased with *** the examined participants with DM,the prevalence of cataract was significantly(P=0.012)higher(+35%)than that in non-diabetic subjects(29.5%vs 21.8%).Following aging(Or=15.2%,Proved to be the most independent influencing risk factor(Or=49.9%,Presence of DM was neither an influencing factor for complications of cataract surgery,nor for postoperative visual ***:DM appears to be one of the main risk factors for developing *** risk factors,such as age,sex and environment also play an influencing *** does not seem to affect the occurrence of cataract surgical complications.

关键词： cataract diabetes mellitus rapid Assessment of Avoidable Blindness

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工程师应知: 技术转让与革新

工程师应知: 技术转让与革新

Solar flares with similar soft but different hard X-ray emissions： case and statistical studies

作者： L.n.·莫加维洛(L.n. Mogavero) r.S.·萨恩(r.S. Shane)

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research in Astronomy and Astrophysics 2016年第1期16卷 39-50页

作者： Ivan n.Sharykin Alexei B.Struminsky Ivan V.Zimovets Wei-Qun Gan Space research Institute Russian Academy of Sciences Moscow 117997 Russia Purple Mountain Observatory Chinese Academy of Sciences Nanjing 210008 China

From the reuven ramaty High Energy Solar Spectroscopic Imager （rHESS1） catalog we select events which have approximately the same GOES class （high C - low M or 500-1200 counts s-1 within the rHESSI 6-12 keV energy band）, but with different maximal energies of detected hard X-rays. The selected events are subdivided into two groups：（1） flares with X-ray emissions observed by rHESSI up to only 50 keV and （2） flares with hard X-ray emission observed also above 50 keV. The main task is to understand observational peculiarities of these two flare groups. We use rHESSIX-ray data to obtain spectral and spa- tial information in order to find differences between selected groups. Spectra and images are analyzed in detail for six events （case study）. For a larger number of samples （85 and 28 flares in the low-energy and high-energy groups respectively） we only make some generalizations. In spectral analysis we use the thick- target model for hard X-ray emission and one temperature assumption for thermal soft X-ray emission. rHESSI X-ray images are used for determination of flare region sizes. Although thermal and spatial prop- erties of these two groups of flares are not easily distinguishable, power law indices of hard X-rays show significant differences. Events from the high-energy group generally have a harder spectrum. Therefore, the efficiency of chromospheric evaporation is not sensitive to the hardness of nonthermal electron spectra but rather depends on the total energy flux of nonthermal electrons.

关键词： Sun: flares -- Sun: X-rays -- gamma rays

Bulbocavernosus muscle area measurement： a novel method to assess androgenic activity

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Asian Journal of Andrology 2014年第4期16卷 618-622页

作者： Ali A Dabaja Matthew S Wosnitzer Anna Mielnik Alexander Bolyakov Peter n Schlegel Darius A Paduch Department of Urology and reproductive Medicine Weill Cornell Medical College New York USA.

Serum testosterone does not correlate with androgen tissue activity, and it is critical to optimize tools to evaluate such activity in males. Ultrasound measurement of bulbocavernosus muscle （BCM） was used to assess the relationship between the number of CAG repeats （CAGn） in the androgen receptor （Ar） and the BCM size; the changes in the number of CAGn over age were also evaluated. Transperineal ultrasound measurement of the BCM was also performed. Ar CAGn were determined by high performance liquid chromatography, and morning hormone levels were determined using immunoassays. Forty-eight men had CAG repeat analysis. Twenty-five were 〈30 years of age, mean 23.7 years （s.d, = 3.24） and 23 were 〉45 years of age, mean 53years （s.d. = 5.58）. The median CAGn was 21 （13-29）. BCM area was greater when the number of CAGn were 〈18 as compared to the number of CAGn 〉24 （P= 0.04）. There was a linear correlation between the number of CAGn and the BCM area r^2= 16% （P= 0.01）. In the 45 to 65-years-old group, a much stronger negative correlation （r^2 = 29%, P= 0.01） was noticed. In the 19 to 29-years-old group, no such correlation was found （r2 = 4%, P = 0.36）. In older men, the number of CAGn increased with age （r^2 = 32%, P= 0.01）. The number of CAGn in the Ar correlates with the area of the BCM. Ultrasound assessment of the BCM is an effective surrogate to evaluate end-organ activity of androgens. The number of CAGn may increase with age.

关键词： age androgen activity androgen receptor androgen sensitivity bulbocavernosus muscle CAG repeats

The angular distributions of elastic scattering of^12,13C+Zr

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Chinese Physics C 2020年第10期44卷 74-86页

作者： Cui-Hua rong Gao-Long Zhang Lin Gan Zhi-Hong Li L.C.Brandao E.n.Cardozo M.r.Cortes Yun-Ju Li Jun Su Sheng-Quan Yan Sheng Zeng Gang Lian Bing Guo You-Bao Wang Wei-Ping Liu J.Lubian School of Physics Beihang UniversityBeijing 100191China Beijing Advanced Innovation Center for Big Data-Based Precision Medicine School of Medicine and EngineeringBeihang Universityand Key Laboratory of Big Data-Based Precision Medicine(Beihang University)Ministry of Industry and Information TechnologyBeijing 100191China College of Physics and Optoelectronic Engineering Shenzhen UniversityShenzhen 518060China China Institute of Atomic Energy Beijing 102413China Instituto de Física Universidade Federal Fluminense24210-340NiteróiRio de JaneiroBrazil Instituto de Física Universidade de São PauloBrazil

To obtain the neutron spectroscopic amplitudes for 90-96Zx overlaps experimental data of elastic scatter-ing with small experimental errors and precise optical potentals were anary exin othe hiohpyecision o3D magneticangular distributions of^12,^13C+^AZr(A=90,91,92,94,96)were measured using the high-precision Q3D magnetic spectrometer in the Tandem *** Sao Paulo potential was used for the optical *** optical mod-el and coupled channel calculations were compared with the experimental *** theoretical results were found tobe very close to the experimental *** addition,the possible effects of the couplings to the inelastic channels of the^AZr targets and 12,13^C projectiles on the elastic scattering were *** was observed that the couplings to the in-elastic channels of the^12,^13C projectiles could improve the agreement with the experimental data,while the inelasticcouplings to the target states are of minor *** effect of the one-neutron stripping in the^13C+^AZr elasticscattering was also *** one-neutron stripping channel in^13C+^AZr was found to be not relevant and did notaffect the elastic scattering angular *** results also show that in the reactions with the considered zir-conium isotopes,the presence of the extra neutron in^13C does not influence the reaction mechanism,which is gov-erned by the collective excitation of the^12C core.

关键词： elastic scattering optical model coupled channel