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Physicochemical parameters and seasonal variation of coastal water from Balochistan coast,Pakistan

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Journal of Coastal Life Medicine 2015年第3期3卷 199-203页

作者： naeema elahi Quratulan Ahmed Levent Bat Farzana Yousuf Department of Zoology University of KarachiKarachi75270 Pakistan The Marine Reference Collection and Resources Centre University of KarachiKarachi75270 Pakistan Fisheries Faculty Department of HydrobiologySinop University57000 SinopTurkey

Objective:To determine common physico-chemical parameters of coastal ***:Physicochemical properties of water were determined according to the standards of the American Public Health ***,all those parameters were recorded a small variation between *** variation in physico-chemical parameters like salinity,temperature,dissolved oxygen and pH at Gwadar(Coastal water of Balochistan)were ***:The range of air temperature of coastal water of Balochistan during 2004 and 2006 varies from 25℃to 37℃,water temperature ranged from 15.00℃to 33.00℃,pH ranged from 7.08 to 8.95,salinity ranged from 37.4‰to 41.3‰and dissolved oxygen ranged from 5.32 to 8.67 mg/***:Results showed that these parameters of Balochistan coast of Pakistan is not dangerous for marine habitat and the use of these parameters in monitoring programs to assess ecosystem health has the potential to inform the general public and decision-makers about the state of the coastal *** save this vital important habitat,the government agencies and scientists should work with proper attention.

关键词： Physicochemical parameters Balochistan coast Pakistan

Diets of Halfbeak Hemiramphus lutkei(Valenciennes,1847)from Karachi Coast,Pakistan

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Journal of Coastal Life Medicine 2014年第2期2卷 85-88页

作者： Sadaf Tabassum Farzana Yousuf naeema elahi Md.Mosaddequr Rahman Md.Yeamin Hossain Department of Zoology University of KarachiKarachiPakistan Faculty of Fisheries Kagoshima UniversityKagoshima 890-0056Japan Department of Fisheries Faculty of AgricultureUniversity of RajshahiRajshahi 6205Bangladesh

Objective: To investigate the diets of the Lutke’s halfbeak, Hemiramphus lutkei (H. lutkei) to determine the food and feeding habits. Methods:Samples of H. lutkei were collected from the landing sites of Karachi Coast, Pakistan. Total length was measured to the nearest 0.01 cm using digital slide calipers, and total body weight was measured using an electronic balance with 0.01 g accuracy. The dietary composition was determined from gut content examination and analysis was done using frequency of occurrence and numerical methods. To assess the changes in diet with size, H. lutkei were divided into two size groups, Group 1:14-20 cm (n=250) and Group 2:21-25 cm (n=160). Results:The total length and body weight of the sampled specimens ranged from 14 to 25 cm and 10 to 23.5 g, respectively. Out of the studied specimens, 45.12%fish stomachs were found to be empty. Dietary composition revealed daphnia, small fish, isopods, unidentified animal materials, ostracods and unidentified plant materials in the gut contents of Lutke’s halfbeak. Therefore, H. lutkei is omnivore fish feeding on algae, zooplankton, small fishes and different food items of both plant and animal origin. According to the Schoener overlap index (C), there was no significant difference in feeding of the two length groups of H. lutkei (C=0.833). On the other hand, the Shannon-Wiener index showed that the prey diversity of the Lutke's halfbeak in Group 1 was lower (H'=1.545) than that of Group 2 (H'=1.653). Conclusions:This study reports the first description of diets for H. lutkei, which would be useful for the sustainable management of this fishery in the coast of Pakistan and also neighboring countries.

关键词： Food Feeding habit Hemiramphus lutkei Omnivore Pakistan

Diet and feeding ecology of black-barred halfbeak Hemiramphus far(Forsskal, 1775) (Hemiramphidae) from Karachi coast of Pakistan

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Journal of Coastal Life Medicine 2017年第1期5卷 4-6页

作者： Sadaf Tabassum Farzana Yousuf naeema elahi MdYeamin Hossain MdAlomgir Hossen Fairuz Nawer Dalia Khatun MostFaridaParvin Department of Zoology Federal Urdu University of ArtsScience and TechnologyGulshan-e-Iqbal CampusKarachi75300Pakistan Department of Zoology University of KarachiKarachi75270Pakistan Department of Fisheries Faculty of AgricultureUniversity of RajshahiRajshahi6205Bangladesh

Objective:To describe the diet and feeding ecology ofHemiramphus far (H. far) through investigating the stomach contents. Methods: Sampling of total 430 individuals ofH. far was carried out from commercial catches landed at West Wharf fish harbor of Karachi coast, Pakistan during January–December 2010. The total length and weight of each individual were recorded. Samples were parted into Group 1 (15–20 cm,n = 240) and Group 2 (21–26 cm,n = 190), to estimate changes in diet with fish size. To remove alimentary canal, fishes were dissected and kept into 10% formalin. Then gut contents were examined under a light microscope for each intestine. Stomach fullness as well as dietary composition was ascertained from gut contents. Examination and analyses were conducted using frequency of occurrence and numerical method. Results:The examination confirmed 47.67% stomach as empty. Furthermore, our study revealed that the diet ofH. far consists of fishes, isopods, ostracods,Daphnia, shells, algae, unidentified plants and animal materials. This study proved thatH. far is an omnivorous fish feeding on fishes, isopods, shells, algae and plant and animal originated different food items. According to the Schoener overlap index, there was no significant difference in feeding of the two length groups ofH. far (C = 0.833). In addition, the Shannon-Wiener index presented that in Group 1, the prey diversity of the halfbeak was lower (H = 0.90) than that of Group 2 (H = 1.02). Conclusions: The findings of the present study would be very effective for sustainable management of black-barred halfbeak fishery in the Karachi coast of Pakistan and the surrounding ecosystems.

关键词： Pakistan Karachi coast Feeding ecology Stomach contents Hemiramphus far

Structural insights on anti-biofilm mechanism of heated slightly acidic electrolyzed water technology against multi-resistant Staphylococcus aureus biofilm on food contact surface

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Food Science and Human Wellness 2024年第3期13卷 1556-1566页

作者： Pianpian Yan Ramachandran Chelliah Kyoung Hee Jo Xiuqin Chen Akanksha Tyagi Hyeon Yeong Jo Fazle elahi Nam Chan Woo Min Seung Wook Deog Hwan Oh Department of Food Science and Biotechnology College of Agriculture and Life SciencesKangwon National UniversityChuncheon 24341South Korea Kangwon Institute ofInclusive Technology(KIIT) Kangwon National UniversityChuncheon 24341South Korea Saveetha School of Engineering (SIMATS)UniversitySriperumbudur 600124India Seoulin Bioscience Company Seongnam-si 13488South Korea

Slightly acidic electrolyzed water(SAEW)has proven to be an efficient and novel sanitizer in food and agriculture *** study assessed the efficacy of SAEW(30 mg/L)at 40℃on the inactivation of foodbome pathogens and detachment of multi-resistant Staphylococcus aureus(MRSA)*** underlying mechanism of MRS A biofilm under heated SAEW at 40℃treatment on metabolic profiles was *** results showed that the heated SAEW at 40℃significantly effectively against foodbome pathogens of 1.96-7.56(lg(CFU/g))reduction in pork,chicken,spinach,and *** heated SAEW at 40℃treatment significantly reduced MRS A biofilm cells by 2.41(lg(CFU/cm^(2))).The synergistic effect of SAEW treatment showed intense anti-biofilm activity in decreasing cell density and impairing biofilm cell *** metabolic response of MRSA biofilms,treated by SAEW at 40℃,revealed the alterations of intracellular metabolites,including amino acids,organic acid,fatty acid,and ***,signaling pathways involved in amino acid metabolism,energy metabolism,nucleotide synthesis,carbohydrate metabolites,and lipid biosynthesis were functionally disrupted by the SAEW at 40℃*** per our knowledge,this is the first research to uncover the potential mechanism of heated SAEW treatment against MRSA biofilm on food contact surface.

关键词： Multi-resistant Staphylococcus aureus Metabolic profile SAEW Biofilm Hurdle technology Electrode material

Metric-Based Resolvability of Quartz Structure

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Computers, Materials & Continua 2022年第4期71卷 2053-2071页

作者： Muhammad Imran Ali Ahmad Muhammad Azeem Kashif elahi Department of Mathematical Sciences United Arab Emirates UniversityAl AinUnited Arab Emirates College of Computer Science&Information Technology Jazan University JazanSaudi Arabia Department of Aerospace Engineering Faculty of EngineeringUniversiti Putra MalaysiaMalaysia Deanship of E-learning and Information Technology Jazan UniversityJazanSaudi Arabia

Silica has three major varieties of crystalline. Quartz is the main andabundant ingredient in the crust of our earth. While other varieties are formedby the heating of quartz. Silica quartz is a rich chemical structure containingenormous properties. Any chemical network or structure can be transformedinto a graph, where atoms become vertices and the bonds are converted toedges, between vertices. This makes a complex network easy to visualize towork on it. There are many concepts to work on chemical structures in termsof graph theory but the resolvability parameters of a graph are quite advanceand applicable topic. Resolvability parameters of a graph is a way to getting agraph into unique form, like each vertex or edge has a unique identification bymeans of some selected vertices, which depends on the distance of vertices andits pattern in a particular graph. We have dealt some resolvability parametersof SiO2 quartz. We computed the resolving set for quartz structure and itsvariants, wherein we proved that all the variants of resolvability parameters ofquartz structures are constant and do not depend on the order of the graph.

关键词： Quartz polycyclic aromatic hydrocarbon related structure metric dimension metric or distance-based resolvability parameters

A blockchain-based trustworthy collaborative power trading scheme for 5G-enabled social internet of vehicles

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Digital Communications and Networks 2022年第6期8卷 976-983页

作者： Ziming Liu Yang Xu Cheng Zhang Haroon elahi Xiaokang Zhou College of Information Science and Engineering Northeastern UniversityShenyang110819China College of Computer Science and Electronic Engineering Hunan UniversityChangsha410082China Key Laboratory of Blockchain and Cyberspace Governance of Zhejiang Province Zhejiang UniversityHangzhou310058China Department of Computing Science Umea UniversityUmea90187Sweden Faculty of Data Science Shiga UniversityHikone522-8522Japan RIKEN Center for Advanced Intelligence Project RIKENTokyo103-0027Japan

Social Internet of Vehicles(SIoV)falls under the umbrella of social Internet of Things(IoT),where vehicles are socially connected to other vehicles and roadside units that can reliably share information and services with other social entities by leveraging the capabilities of 5G technology,which brings new opportunities and challenges,e.g.,collaborative power trading can address the mileage anxiety of electric ***,it relies on a trusted central party for scheduling,which introduces performance bottlenecks and cannot be set up in a distributed network,in addition,the lack of transparency in state-of-the-art Vehicle-to-Vehicle(V2V)power trading schemes can introduce further trust *** this paper,we propose a blockchain-based trustworthy collaborative power trading scheme for 5G-enabled social vehicular networks that uses a distributed market mechanism to introduce trusted power trading and avoids the dependence on a centralized dispatch *** on the game theory,we design the pricing and trading matching mechanism for V2V power trading to obtain maximum social *** use blockchain to record power trading data for trusted pricing and use smart contracts for transaction *** simulation results verify the effectiveness of the proposed scheme in improving social welfare and reducing the load on the grid.

关键词： Social internet of vehicles Bl ockchain Collaborative power trading Vehicle-to-vehicle charging 5G

Analysis of Distance-Based Topological Polynomials Associated with Zero-Divisor Graphs

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Computers, Materials & Continua 2022年第2期70卷 2895-2904页

作者： Ali Ahmad Roslan Hasni Nahid Akhter Kashif elahi College of Computer Sciences and Information Technology JazanJazan UniversitySaudi Arabia Faculty of Ocean Engineering Technology and Informatics University Malaysia TerengganuKuala Terengganu21030TerengganuMalaysia Department of Mathematics Govt.College UniversityLahorePakistan Deanship of E-learning and Information Technology Jazan UniversityJazanSaudi Arabia

Chemical compounds are modeled as *** atoms of molecules represent the graph vertices while chemical bonds between the atoms express the *** topological indices representing the molecular graph corresponds to the different chemical properties of *** a,b be are two positive integers,andΓ(Z_(a)×Z_(b))be the zero-divisor graph of the commutative ring Z_(a)×Z_(b).In this article some direct questions have been answered that can be utilized latterly in different *** study starts with simple computations,leading to a quite complex ring theoretic problems to prove certain *** theory of finite commutative rings is useful due to its different applications in the fields of advanced mechanics,communication theory,cryptography,combinatorics,algorithms analysis,and *** this paper we determine the distance-based topological polynomials and indices of the zero-divisor graph of the commutative ring Z_(p^(2))×Z_(q)(for p,q as prime numbers)with the help of graphical structure *** study outcomes help in understanding the fundamental relation between ring-theoretic and graph-theoretic properties of a zero-divisor graphΓ(G).

关键词： Zero divisor graph Wiener index Hosoya polynomial (modified)Schulz index (modified)Schulz polynomial

A Study of Cellular Neural Networks with Vertex-Edge Topological Descriptors

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Computers, Materials & Continua 2022年第2期70卷 3433-3447页

作者： Sadia Husain Muhammad Imran Ali Ahmad Yasir Ahmad Kashif elahi Country College of Computer Science&Information Technology Jazan UniversityJazanSaudi Arabia Department of Mathematical Sciences United Arab Emirates UniversityAl AinUnited Arab Emirates Deanship of E-learning and Information Technology Jazan UniversityJazanSaudi Arabia

The CellularNeuralNetwork(CNN)has various parallel processing applications,image processing,non-linear processing,geometric maps,highspeed *** is an analog paradigm,consists of an array of cells that are interconnected *** can be arranged in different *** cell has an input,a state,and an *** cellular neural network allows cells to communicate with the neighbor cells *** can be represented graphically;cells will represent by vertices and their interconnections will represent by *** chemical graph theory,topological descriptors are used to study graph structure and their biological *** is a single value that characterizes the whole *** this article,the vertex-edge topological descriptors have been calculated for cellular neural *** can be used for cellular neural network of any *** will enhance the applications of cellular neural network in image processing,solving partial differential equations,analyzing 3D surfaces,sensory-motor organs,and modeling biological vision.

关键词： Cellular neural networks degree topological indices

Optimal Cooperative Spectrum Sensing Based on Butterfly Optimization Algorithm

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Computers, Materials & Continua 2022年第4期71卷 369-387页

作者： Noor Gul Saeed Ahmed Atif elahi Su Min Kim Junsu Kim Department of Electronics Engineering Korea Polytechnic University15073Gyeonggi-doKorea Department of Electronics University of Peshawar25120Pakistan Department of Electrical Engineering Mirpur University of Science of TechnologyAJ&K10250Pakistan Department of Electrical Engineering International Islamic UniversityIslamabad 44000Pakistan

Since the introduction of the Internet of Things(IoT),several researchers have been exploring its productivity to utilize and organize the spectrum *** radio(CR)technology is characterized as the best aspirant for wireless communications to augment IoT *** the CR networks,secondary users(SUs)opportunistically get access to the primary users(PUs)spectrum through spectrum *** multipath issues in the wireless channel can fluster the sensing ability of the individual ***,several cooperative SUs are engaged in cooperative spectrum sensing(CSS)to ensure reliable sensing *** CSS,security is still a major concern for the researchers to safeguard the fusion center(FC)against abnormal sensing reports initiated by the malicious users(MUs).In this paper,butterfly optimization algorithm(BOA)-based soft decision method is proposed to find an optimized weighting coefficient vector correlated to the SUs sensing *** coefficient vector is utilized in the soft decision rule at the FC before making any global *** effectiveness of the proposed scheme is compared for a variety of parameters with existing schemes through simulation *** results confirmed the supremacy of the proposed BOA scheme in both the normal SUs’environment and when lower and higher SNRs information is carried by the different categories of MUs.

关键词： Internet of Things cognitive radio network butterfly optimization algorithm particle swarm optimization malicious users genetic algorithm