检索结果-南通市图书馆

Phloroglucinol, a nutraceutical for IR-induced cardiac damage in diabetic rats

在线全文

学校读者我要写书评

暂无评论

Animal Models and Experimental Medicine 2019年第3期2卷 210-216页

作者： B.Pranav Nayak K.R.Ganesha Nathani Minaz Rema Razdan Sumanta Kumar Goswami Department of Pharmacology Al‐Ameen College of PharmacyBengaluruKarnatakaIndia Department of Pharmaceutical sciences Northeastern UniversityBostonMAUSA

Background:Myocardial injury due to ischemia‐reperfusion(IR)is aggravated in diabetes which is associated with oxidative *** oxidative stress via use of antioxidants has been shown to be effective at minimizing myocardial cell death and improving cardiac *** aim of the present study was to evaluate the cardioprotective effect of phloroglucinol against myocardial reperfusion injury(MRI)in diabetic ***:Diabetes was induced in female rats with streptozotocin(50 mg/kg).The diabetic rats were orally treated with phloroglucinol(100 and 200 mg/kg daily for 28 days).After treatment the hearts were isolated and mounted on a Langendorff *** hearts were subjected to 15 minutes of IR to induce myocardial *** functions including heart rate(HR),resting and developed tension,and rate of change of contraction(+dP/dtmax)were *** injury biomarkers lactate dehydrogenase(LDH)and creatine kinase(CK‐MB)were measured in the heart *** of the antioxidant enzymes reduced glutathione(GSH)and malondialdehyde(MDA)were *** and eosin(H&E)staining was also ***:After IR injury,a decrease in HR and+dP/dtmax in hearts from diabetic rat was seen compared to healthy rat hearts,which was reversed by phloroglucinol *** infarct size,measured by H&E staining,was increased in diabetic rats compared to healthy rats and an increase in the activity of LDH and CK‐MB in the heart perfusate in diabetic rats was decreased by phloroglucinol *** increase in MDA levels and a decrease in levels of antioxidant enzymes were observed in diabetic rats,which was reversed with phloroglucinol ***:Phloroglucinol treatment has potential therapeutic promise in the treatment of MRI in diabetes.

关键词： Langendroff apparatus myocardial reperfusion injury phloroglucinol streptozotocin

Comprehensive analysis of glacier recession(2000-2020)in the Nun-Kun Group of Glaciers,Northwestern Himalaya

在线全文

学校读者我要写书评

暂无评论

Journal of Mountain Science 2024年第3期21卷 768-785页

作者： Shakil Ahmad ROMSHOO Ummer ameen Mustafa Hameed BHAT Tariq ABDULLAH Department of Geoinformatics University of KashmirSrinagarKashmir 190006India Islamic university of Science and Technology AwantiporaKashmir 192122India Centre of Excellence for Glacier Studies in the Western Himalaya University of KashmirSrinagarKashmir 190006India

Himalayan glaciers are shrinking rapidly,especially after *** shrinkage,however,shows a differential pattern in space and time,emphasizing the need to monitor and assess glacier changes at a larger *** this study,changes of 48 glaciers situated around the twin peaks of the Nun and Kun mountains in the northwestern Himalaya,hereafter referred to as Nun-Kun Group of Glaciers(NKGG),were investigated using Landsat satellite data during *** in glacier area,snout position,Equilibrium Line Altitude(ELA),surface thickness and glacier velocity were assessed using remote sensing data supplemented by field *** study revealed that the NKGG glaciers have experienced a recession of 4.5%±3.4%and their snouts have retreated at the rate of 6.4±1.6 m·a^(-1).Additionally,there was a 41%increase observed in the debris cover area during the observation *** the geodetic approach,an average glacier elevation change of-1.4±0.4 m·a^(-1)was observed between 2000 and *** observed mass loss of the NKGG has resulted in the deceleration of glacier velocity from 27.0±3.7 m·a^(-1)in 2000 to 21.2±2.2 m·a^(-1)in *** ELA has shifted upwards by 83.0±22 m during the *** morphological and topographic factors showed a strong influence on glacier ***,a higher recession of 12.9%±3.2%was observed in small glaciers,compared to 2.7%±3.1%in larger *** debris-covered glaciers showed lower shrinkage(2.8%±1.1%)compared to the clean glaciers(9.3%±5%).The glacier depletion recorded in the NKGG during the last two decades,if continued,would severely diminish glacial volume and capacity to store water,thus jeopardizing the sustainability of water resources in the basin.

关键词： Nun-Kun range Glacier recession Glacier snout Remote Sensing Himalaya Glacier velocity

Overlapping and Conflicting Interests as Opposed to Integration and Disintegration in Iran-India Ties 1947-1979

在线全文

学校读者我要写书评

暂无评论

International Relations and Diplomacy 2017年第3期5卷 170-179页

作者： Mohammad Mehdi Mirzaei Mohammad Taghi Amrollahi Suroush Amiri Islamic Azad university Karaj Branch Karaj Iran School for International Relations of Ministry of Foreign Affairs Tehran Iran ameen university Tehran Iran

In the period between independence of India in 1947 to Iranian Islamic revolution in 1979 there were plenty of factors in the position of integration and disintegration acting in the relationship between the two countries. Iran and India, whose result is meaningfully affected by factors in three levels of national, regional and international sphere and in the framework of bipolarity as the predominant system in the then international system. The ties in the critical period of cold war between two superpowers that came after the World War II were full of ups and downs. Undoubtedly the true perception of such an atmosphere needs to pay attention to the factors of integration and disintegration, which are interdependent and directly or indirectly impact each other and the finalized atmosphere of mutual relations. Knowing the atmosphere is not only important historically but also it enables researchers to evaluate the different factors within the relations and to interpret each of them critically, meaning that the root of disputes, influence of global events and external factors in mutual relations, changes the politician point of views and the political mainstream patterns, and finally to mention the strategic and geopolitical situation regarding the influential factors of integration or disintegration. At the end, the cleared results open a new foundation in order to make new researches which can help to make formula to futurism and be useful in practical sphere.

关键词： Iran India mutual relations integration disintegration foreign policy

赛德西港用于船舶减排的陆上可再生能源供电评估

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

哈尔滨工程大学学报（英文版） 2024年第2期23卷 506-524页

作者： Merna Makram ameen M.Bassam Adel A.Tawfik Waleed Yehia Naval Architecture and Marine Eng.Dept. Faculty of EngineeringPort Said UniversityPort Fuad 42526Egypt

Air pollution from shipping is becoming a critical issue,particularly in dense hub port *** proposed solution to minimize ship-based emissions at ports is the implementation of an Onshore Power Supply(OPS)*** allows ships to shut off their auxiliary engines and instead connect to the port *** there have been numerous studies conducted on ports in Europe and the United States,little research has been done on Egyptian ***,this paper aims to investigate the feasibility of implementing OPS at Port Said West Port in Egypt,aligning with Egypt Vision 2030’s goals for addressing climate *** research primarily focuses on analyzing data collected from calling ships to generate socio-economic and cost-effectiveness analyses of *** further enhance the environmental benefits of OPS,the paper proposes the use of solar energy as the OPS electricity *** findings of the study revealed that by relying on the national grid,emissions can be reduced by 28%.Moreover,it is predicted that this reduction could reach 100%if electricity generation is solely based on solar ***,the economic analysis demonstrates promising profitability,with a payback period of approximately two years.

关键词： Onshore power supply Port sustainability Shipping emissions inventory Solar energy Photovoltaic systems

Influence of a-tocopherol on nickel induced alteration of serum lipid profile in male albino rats

在线全文

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Medicine 2008年第1期1卷 14-18页

作者： Gupta AD Dhundasi SA Dhara PC Das KK Department of Physiology Al-Ameen Medical CollegeBijapur 586108 KarnatakaIndia Department of Human Physiology & Community Health Vidyasagar UniversityMidnapur(West) 721102West BengalIndia

We studied the effect of the simultaneous treatment withα-tocopherol(100 mg / kg;im) and nickel sulfate (20 mg/kg,ip) on nickel-induced changes in serum lipid ***-treated rats showed a significant increase in serum LDL cholesterol,total cholesterol,triglycerides,and a significant decrease in serum HDL cholesterol. Simultaneous administration ofα-tocopherol with nickel sulfate improved LDL-cholesterol and HDLcholesterol level when compared with rats receiving nickel sulfate *** results indicate thatα-tocopherol is beneficial in preventing nickel-induced lipid profile alterations.

关键词： nickel sulfate α-tocopherol serum lipid profile

Resource Assessment of Wind Energy Potential of Mokha in Yemen with Weibull Speed

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2021年第10期69卷 1123-1140页

作者： Abdulbaset El-Bshah Fahd N.Al-Wesabi ameen M.Al-Kustoban Mohammad Alamgeer Nadhem Nemri Majdy M.Eltahir Hany Mahgoub Noha Negm Department of Electronic Engineering Faculty of EngineeringUniversity of Science and Technology UST-Sana’aYemen Department of Computer Science King Khalid UniversityMuhayel AseerKingdom of Saudi Arabia Faculty of Computer and IT Sana’a UniversitySana’aYemen Department of Electronic Faculty of EngineeringUSTSana’aYemen Department of Information Systems King Khalid UniversityMayahel AseerKSA Department of Computer Science King Khaled UniversityKSA&Faculty of Computers and InformationMenoufia UniversityEgypt Department of Computer Science King Khaled UniversityKSA&Faculty of ScienceDepartment of Mathematics and Computer ScienceMenoufia UniversityEgypt

The increasing use of fossil fuels has a significant impact on the environment and ecosystem,which increases the rate of *** the high potential of renewable energy sources in Yemen and other Arabic countries,and the absence of similar studies in the *** study aims to examine the potential of wind energy in Mokha *** was done by analyzing and evaluating wind properties,determining available energy density,calculating wind energy extracted at different altitudes,and then computing the capacity factor for a few wind turbines and determining the *** speed was verified as the closest to the average actual wind speed using the cube root,as this was verified using 3 criteria for performance analysis methods(R^(2)=0.9984,RMSE=0.0632,COE=1.028).The wind rose scheme was used to determine the appropriate direction for directing the wind turbines,the southerly direction was appropriate,as the winds blow from this direction for 227 days per year,and the average southerly wind velocity is 5.27 m/s at an altitude of 3 *** turbine selected in this study has a tower height of 100m and a rated power of 3.45 *** capacitance factor was calculated for the three classes of wind turbines classified by the International Electrotechnical Commission(IEC)and compared,and the turbine of the first class was approved,and it is suitable for the study site,as it resists storms more than *** daily and annual capacity of a single,first-class turbine has been assessed to meet the needs of 1,447 housing units in Mokha *** amount of energy that could be supplied to each dwelling was around 19 kWh per day,which was adequate to power the basic loads in the home.

关键词： Wind energy system probability density wind speed Weibull velocity Rayleigh velocity wind rose

Development of Nano-tetragonal Zirconia-Incorporated Ni–P Coatings for High Corrosion Resistance

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Metallurgica Sinica(English Letters) 2019年第4期32卷 481-494页

作者： S.M.A.Shibli K.S.Chinchu M.ameen Sha Department of Chemistry University of KeralaKariavattom CampusThiruvananthapuram

Pure tetragonal 10-20-nm-size zirconia-based Ni-P composite coating was developed. The physicochemical and electrochemical characteristics including corrosion resistance of the coating were investigated. The Ni-P-nano-tetragonal zirconia coating was partially crystalline having face-centered cubic phase. The coating had very high corrosion resistance due to its dense compact morphology and low surface roughness. The Ni-P-nano-tetragonal zirconia coatings exhibited a cathodic shift of open-circuit potential(OCP) in the range from-0.340 to-0.520 V. A high polarization resistance of the order of 13.2 kΩ/cm^2 and low corrosion current density of 3.9 μA/cm^2 were achieved due to the effective incorporation of zirconia into the coating.

关键词： Composites Corrosion resistance Substrates Ni–P ZrO2

Wild melon: a novel non-edible feedstock for bioenergy

在线全文

学校读者我要写书评

暂无评论

Petroleum Science 2018年第2期15卷 405-411页

作者： Maria ameen Muhammad Zafar Mushtaq Ahmad Anjuman Shaheen Ghulam Yaseen Biofuel Laboratory Department of Plant Sciences Quaid-i-Azam University Department of Environmental Science Female CampusInternational Islamic University Islamabad

In the present research work, a non-edible oil source Cucumis melo var. agrestis （wild melon） was systematically identified and studied for biodiesel production and its characterization. The extracted oil was 29.1% of total dry seed weight. The free fatty acid value of the oil was found to be 0.64%, and the single-step alkaline transesterification method was used for conversion of fatty acids into their respective methyl esters. The maximum conversion efficiency of fatty acids was obtained at 0.4 wt% NaOH （used as catalyst）, 30% （methanol to oil, v/v） methanol amount, 60 ℃ reaction temperature, 600-rpm agitation rate and 60-min reaction time. Under these optimal conditions, the conversion efficiency of fatty acid was 92%. However, in the case of KOH as catalyst, the highest conversion （85%） of fatty acids was obtained at 40% methanol to oil ratio, 1.28 wt% KOH, 60 ℃ reaction temperature, 600-rpm agitation rate and 45 min of reaction time. Qualitatively, biodiesel was characterized through Fourier transform infrared spectroscopy （FFIR） and gas chromatography and mass spectroscopy （GC-MS）. FTIR results demonstrated a strong peak at 1742 cm-1, showing carbonyl groups （C=O） of methyl esters. However, GC-MS results showed the presence of twelve methyl esters comprised of lauric acid, myristic acid, palmitic acid, non-decanoic acid, hexadecanoic acid, octadecadienoic acid and octadecynoic acid. The fuel properties were found to fall within the range recommended by the international biodiesel standard, i.e., American Society of Testing Materials （ASTM）： flash point of 91℃, density of 0.873 kg/L, viscosity of 5.35 cSt, pour point of - 13 ℃, cloud point of -10 ℃, total acid number of 0.242 mg KOH/g and sulfur content of 0.0043 wt%. The present work concluded the potential of wild melon seed oil as excellent non-edible source of bioenergy.

关键词： Cucumis melo var. agrestis Wild melon seed oil (WMSO) Transesterification Bioenergy Characterization Fuel properties

Human Faces Detection and Tracking for Crowd Management in Hajj and Umrah

在线全文

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2022年第6期71卷 6275-6291页

作者： Riad Alharbey ameen Banjar Yahia Said Mohamed Atri Abdulrahman Alshdadi Mohamed Abid Department of Information Systems and Technology College of Computer Science and EngineeringUniversity of JeddahJeddahSaudi Arabia Electrical Engineering Department College of EngineeringNorthern Border UniversityArarSaudi Arabia Laboratory of Electronics and Microelectronics(LR99ES30) Faculty of Sciences of MonastirUniversity of MonastirTunisia College of Computer Sciences King Khalid UniversityAbhaSaudi Arabia CES Laboratory ENISUniversity of SfaxTunisia

Hajj and Umrah are two main religious duties for *** help faithfuls to perform their religious duties comfortably in overcrowded areas,a crowd management system is a must to control the entering and exiting for each *** the number of people is very high,an intelligent crowd management system can be developed to reduce human effort and accelerate the management *** this work,we propose a crowd management process based on detecting,tracking,and counting human faces using Artificial Intelligence *** detection and counting will be performed to calculate the number of existing visitors and face detection and tracking will be used to identify all the humans for security *** proposed crowd management system is composed form three main parts which are:(1)detecting human faces,(2)assigning each detected face with a numerical identifier,(3)storing the identity of each face in a database for further identification and *** main contribution of this work focuses on the detection and tracking model which is based on an improved object detection *** improved Yolo v4 was used for face detection and *** has been very effective in detecting small objects in highresolution *** novelty contained in thismethod was the integration of the adaptive attention mechanism to improve the performance of the model for the desired *** wise attention mechanism was applied to the output layers while both channel wise and spatial attention was integrated in the building *** main idea from the adaptive attention mechanisms is to make themodel focus more on the target and ignore false positive *** demonstrated the efficiency of the proposed method through expensive experimentation on a publicly available *** wider faces dataset was used for the train and the evaluation of the proposed detection and tracking *** proposed model has achieved good results with 91.2%of mAP and a processing speed

关键词： Crowdmanagement Hajj and Umrah face detection object tracking convolutional neural networks(CNN) adaptive attention mechanisms