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International Journal of Minerals,Metallurgy and Materials 2023年第12期30卷 2375-2385页

作者： Yiqi Zhou sultan mahmood Dirk Lars Engelberg Beijing Advanced Innovation Center for Materials Genome Engineering Institute for Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing 100083China Metallurgy and Corrosion School of MaterialsThe University of ManchesterM139PLManchesterUK Materials Performance Centre The University of ManchesterM139PLManchesterUK

Bipolar electrochemistry is used to produce a linear potential gradient across a bipolar electrode(BPE),providing direct access to the anodic and cathodic reactions under a wide range of applied *** occurrence of pitting corrosion,crevice corrosion,and general corrosion on type 2205 duplex stainless steel(DSS 2205)BPE has been observed at room *** critical pit depth of 10-20μm with a55%-75% probability of pits developing into stable pits at potential from+0.9 to+1.2 V ***(open circuit potential)are *** pit nucleation sites are either within ferritic grains or at the interface between austenite and *** critical conditions for pitting and crevice corrosion are discussed with Epit(critical pitting potential)and Ecre(critical crevice potential)decreasing from 0.87 and 0.80 V *** after150 s of exposure to 0.84 and 0.76 V *** after 900 s of exposure,*** growth kinetics under different applied bipolar potentials and exposure times have been *** ferrite is shown to be more susceptible to general dissolution.

关键词： bipolar electrochemistry duplex stainless steel pitting corrosion pit growth factor crevice corrosion

Updates in vaccination:Recommendations for adult inflammatory bowel disease patients

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World Journal of Gastroenterology 2015年第11期21卷 3184-3196页

作者： Khadija Chaudrey Michelle Salvaggio Aftab Ahmed sultan mahmood Tauseef Ali Department of Medicine Section of GastroenterologyOklahoma University Health Sciences Center Department of Medicine Section of Infectious DiseasesOklahoma University Health Sciences Center Department of Internal Medicine Oklahoma University Health Sciences Center Inflammatory Bowel Disease Center Oklahoma University Physicians

Treatment regimens for inflammatory bowel disease(IBD) incorporate the use of a variety of immunosuppressive agents that increase the risk of *** of many of these infections can be achieved by the timely and judicious use of *** patients tend to be *** of the contributing factors are lack of awareness regarding the significance of vaccinating IBD patients,misperception about safety of vaccinations in immunocompromised patients,ambiguity about the perceived role of the gastroenterologist in contrast to the primary care physician and unavailability of vaccination guidelines focused on IBD *** general,immunocompetent IBD patients can be vaccinated using standard vaccination *** there are special considerations for IBD patients receiving immunosuppressive therapy,IBD travelers and pregnant women with *** review discusses current vaccination recommendations with updates for adult IBD *** for Disease Control and Prevention 2013 vaccination guidelines with 2014 updates and the Advisory Committee on Immunization Practices recommendations have been highlighted as a primary source of recommendations.

关键词： Inflammatory bowel disease Vaccination Immunocompr

Optimization of Am-Be millicuries neutron source in a small volume cylindrical water tank for NAA

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Radiation Detection Technology and Methods 2019年第3期3卷 78-83页

作者： Abdul Waheed M.Ishaq mahmood sultan National Center for Physics Quaid-i-Azam UniversityIslamabadPakistan Radiation Physics Lab Physics DepartmentCOMSATS Institute of Information Technology(COMSATS University)IslamabadPakistan Centre for Earthquake Studies National Centre for PhysicsQAUIslamabadPakistan

Background The neutron activation analysis(NAA)is a very powerful method for multi-element analysis of *** technique needs to be developed for low neutron flux in millicuries using the 241Am-Be neutron *** To optimize sample and neutron source geometry for maximumγ-ray yield for neutron activation *** Gamma ray neutron activation analysis(NAA)has been set up where a 50-millicurie Am-Be neutron source is *** this experimental setup,the neutron source is placed at the center of a cylindrical water tank of 40 x 40 cm in xyz plan,and thermal neutrons are produced at a distance of 1.2 cm from the *** system is used for the activation analysis of sodium carbonate,sodium chloride and copper with the gamma ray emissions of 1.37,1.73,2.25 and 2.76 MeV for 24Na and 0.511 MeV for 64Cu having half lives of 15 hrs and 12.9 hrs,*** thermal neutron activation analysis has been demonstrated by placing the samples at about 1.2 cm from the neutron *** and 3x3 inch NaI(Tl)gamma ray spectrometers have been used for the gamma ray spectrometry of these activated samples with the use of a Marinelli *** geometry of the sample with respect to the neutron source has been optimized for the maximumγ-ray yield in *** The geometry of the sample with respect to the neutron source has been optimized for the maximumγ-ray yield in *** increase in gamma ray flux distribution in the medium of water,due to the neutron source inside the tank,has been observed by a GM detector which is due to the production of short-lived 16N on activation of 16O in *** system can also be used for promptγ-ray analysis.

关键词： Am-Be neutron source Sodium carbonate Copper samples NAA setup NaI(Tl) HPGe spectroscopy

Precise Seismic Substructural Model of the Eocene Chorgali Limestone in the Turkwal Oil Field, Central Potwar, Pakistan

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Acta Geologica Sinica(English Edition) 2019年第6期93卷 1711-1720页

作者： Khawar Ashfaq AHMED Sarfraz KHAN mahmood sultan UMAIR Bin Nisar Kalim ULLAH Al-Hseinat MU’AYYAD Comsats University Islamabad(CUI)Pakistan National Centre of Excellence in Geology University of PeshawarPeshawar25130KPPakistan Centre for Earthquake Studies National Centre for Physics(NCP)IslamabadPakistan Centre for Climate Research and Development(CCRD) CUIIslamabadPakistan Department of Geology University of JordonAmmanJordan

The precise seismic substructural interpretation of the Turkwal oil field in the Central Potwar region of district Chakwal of Pakistan has been carried out. The research work was confined to the large fore-thrust that serves as an anticlinal structural trap through ten 2 D seismic lines. A precise seismic substructural model of the Eocene Chorgali Limestone with precise orientation of thrust and oblique slip faults shows the presence of a huge fracture, which made this deposit a good reservoir. The abrupt surface changes in dip azimuth for the Eocene Chorgali Limestone verifies the structural trends and also the presence of structural traps in the Turkwal field. The logs of three wells(Turkwal deep X-2, Turkwal-01 and Fimkassar-01) were analyzed for petrophysical studies, well synthetic results and generation of an Amplitude Versus Offset(AVO) model for the area. The AVO model of Turkwal deep X-2 shows abrupt changes in amplitude, which depicts the presence of hydrocarbon content. Well correlation technique was used to define the overall stratigraphic setting and the thickness of the reservoir formation in two wells, Turkwal-01 and Turkwal deep X-2. The Eocene Chorgali Limestone in Turkwal-01 is an upward thrusted anticlinal structure and because of the close position of both wells to the faulted anticlinal structure, its lesser thickness differs compared to Turkwal deep X-2. The overall results confirm that the Turkwal field is comparable to several similar thrust-bound oil-bearing structures in the Potwar basin.

关键词： 2D seismic well correlation fore-thrust structural traps AVO model Eocene Chorgali Limestone and Basement Potwar

Technical Investigation on V2G,S2V,and V2I for Next Generation Smart City Planning

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Journal of Electronic Science and Technology 2019年第4期17卷 300-316页

作者： MD.Shahrukh Adnan Khan Kazi Mahtab Kadir Khandaker sultan mahmood Md.Ibrahim Ibne Alam Ainun Kamal Md.Mamoon Al Bashir the School of Science and Engineering Canadian University of BangladeshDhaka 1213 the Electrical and Electronic Engineering Department University of Asia PacificDhaka 1205. the Electrical and Electronic Engineering Department University of Asia PacificDhaka 1205 and also with the Department of Electrical and Electronic EngineeringIslamic University of TechnologyGazipur 1704. the School of Business Canadian University of BangladeshDhaka 1213.

The paper investigates a few of the major areas of the next generation technological advancement,“smart city planning concept”.The areas that the paper focuses are vehicle to grid(V2G),sun to vehicle(S2V),and vehicle to infrastructure(V2I).For the bi-directional crowd energy single entity concept,V2G and building to grid(B2G)are the primary parts of distributed renewable generation(DRG)under smart *** research includes an in-depth overview of this three major ***,the research conducts a case analysis of V2G,S2V,and V2I along with their possible limitations in order to find out the novel solutions for future development both for academia and industry ***,few possible solutions have been proposed to minimize the limitations and to develop the existing system for future expansion.

关键词： Crowd energy distributed renewable smart city sun to vehicle(S2V) vehicle to grid(V2G) vehicle to infrastructure(V2I)

Low energy range dielectronic recombination of Fluorine-like Fe^17+at the CSRm

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Chinese Physics C 2018年第6期42卷 53-58页

作者： Nadir Khan Zhong-Kui Huang Wei-Qiang Wen sultan mahmood Li-Jun Dou Shu-Xing Wang Xin Xu Han-Bing Wang Chong-Yang Chen Xiao-Ya Chuai Xiao-Long Zhu Dong-Mei Zhao Li-Jun Mao Jie Li Da-Yu Yin Jian-Cheng Yang You-Jin Yuan Lin-Fan Zhu Xin-Wen Ma Institute of Modern Physics Chinese Academy of Sciences Lanzhou 730000 China University of Chinese Academy of Sciences Beijing 100049 China Hefei National Laboratory for Physical Sciences at Micro Scale Department of Modern Physics University of Science and Technology of China Hefei 230026 China Shanghai EBIT Laboratory Key Laboratory of Nuclear Physics and Ion-beam Application Institute of Modern Physics Department of Nuclear Science and Technology Fudan University Shanghai 200433 China

The accuracy of dielectronic recombination （DR） data for astrophysics related ions plays a key role in astrophysical plasma modeling. The absolute DR rate coefficient of Fe^17＋ ions was measured at the main cooler storage ring at the Institute of Modern Physics, Lanzhou, China. The experimental electron-ion collision energy range covers the first Rydberg series up to n = 24 for the DR resonances associated with the 2p1/2 →^2 p3/2△n= 0 core excitations. A theoretical calculation was performed by using FAC code and compared with the measured DR rate coefficient. Overall reasonable agreement was found between the experimental results and calculations. Moreover, the plasma rate coefficient was deduced from the experimental DR rate coefficient and compared with the available results from the literature. At the low energy range, significant discrepancies were found, and the measured resonances challenge state-of-the-art theory at low collision energies.

关键词： storage ring electron cooler electron-ion recombination plasma rate coefficient

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家禽饲料有望利用低单宁的高粱

国外畜牧学（猪与禽） 2014年第3期34卷 25-26页

作者：王晶晶 Hassan Ali sultan mahmood poultry science UAF sub campus toba tek singh 费萨拉巴德农业大学家禽科学系

费萨拉巴德（Faisalabad）大学的研究表明，高粱的一个重要缺．董是含有可降低采食量的单宁，但目前已没有之前认为的那么大。尤其单宁含量低的白高梁已被推荐用于家禽日粮。

关键词：单宁含量家禽饲料高粱利用家禽日粮采食量

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用于ERIS的GPS转发器处理系统

遥测遥控 1991年第4期12卷 61-65页

作者： sultan mahmood Phd. Sverdrup Technology INC. Eglin AFB FL 韦其宁

本文描述基于转发器处理系统(TPS)的全球定位系统(GPS)的要求、设计特点及其能力。该转发器处理系统是由爱格林空军基地的靶场应用联合工程办公室(RAJPO)为美军战略防御指挥(USASDC)的重返外大气层再入飞行器拦截器子系统(ERIS)计划而... 详细信息

本文描述基于转发器处理系统(TPS)的全球定位系统(GPS)的要求、设计特点及其能力。该转发器处理系统是由爱格林空军基地的靶场应用联合工程办公室(RAJPO)为美军战略防御指挥(USASDC)的重返外大气层再入飞行器拦截器子系统(ERIS)计划而建立的。TPS 为 ERIS 实验计划提供目标和拦截飞行器的实时位置和速度信息。为了实现这一目的,弹载转发器提供 GPS C/A 码 L 波段到 S 波段的信号转换,并重发给地面 TPS。地面发射机(GT)网用于增加 GPS 卫星(SV)覆盖域。TPS 测量包括“伪距离和”与“伪距离和的变化率”并借助 GPS 参考接收机(RR)进行差分 GPS 修正。快速相关捕获和快速付里叶变换(FFT)技术用于满足相当严格的性能要求。设计用于动态的和弹道飞行的两种卡尔曼滤波器,来满足目标和拦截器的不同精度要求。TPS 还有其它一些功能,例如,检前记录器(用于事后分析)和动态模拟信号源(用于飞行前检查)。

关键词： GPS 转发器数据处理系统

Transmitter-Receiver Path Selection for Cell Range Extension Using Multi-Hop D2D

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Computers, Materials & Continua 2021年第8期68卷 2075-2093页

作者： Farah Akif Kiran sultan Aqdas N.Malik Ijaz M.Qureshi Saba mahmood Department of Electrical Engineering International Islamic UniversityIslamabad44000Pakistan Department of CIT FASKing Abdulaziz UniversityJeddah21551Saudi Arabia Department of Electrical Engineering Air UniversityIslamabad44000Pakistan Department of Computer Science Bahria UniversityIslamabad44000Pakistan

Conventional approach of dealing with more users per coverage area in cellular networks implies densifying the amount of(Access Point)AP which will eventually result in a larger carbon *** this paper,we propose a base station off-loading and cell range extension(CRE)scheme based on multi-hop device-to-device(MHD2D)path selection between transmitter and receiver *** paper also provides derivations of upper and lower bounds for energy efficiency,capacity,and transmit *** proposed path selection scheme is inspired by the foraging behavior of honey *** present the algorithm as a modified variant of the artificial bee colony algorithm(MVABC).The proposed optimization problem is modeled as a minimization problem where we optimize the Energy Efficiency(EE).The proposed path selection MVABC is compared with the Genetic Algorithm(GA)and also with classical artificial bee colony(ABC)through simulations and statistical *** student’s t-test,p-value,and standard error of means(SEM)clearly show that MVABC based path selection out-performs the GA and classical ABC *** based approach is 66%more efficient when compared with classic ABC and about 62%efficient when compared with GA based scheme.

关键词： Multi-hop ultra-dense D2D path-selection ABC GA

Forecast the Influenza Pandemic Using Machine Learning

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Computers, Materials & Continua 2021年第1期66卷 331-340页

作者： Muhammad Adnan Khan Wajhe Ul Husnain Abidi Mohammed A.Al Ghamdi sultan H.Almotiri Shazia Saqib Tahir Alyas Khalid Masood Khan Nasir mahmood Department of Computer Science Lahore Garrison UniversityLahore54792Pakistan Systems Limited Lahore54792Pakistan Computer Science Department Umm Al-Qura UniversityMakkah City715Saudi Arabia Department of Computer Science University of Engineering and TechnologyLahore54000Pakistan

Forecasting future outbreaks can help in minimizing their *** is a disease primarily found in animals but transferred to humans through *** 1918,influenza became a pandemic and spread rapidly all over the world becoming the cause behind killing one-third of the human population and killing one-fourth of the pig ***,that influenza became a pandemic several times on a local and global *** 2009,influenza‘A’subtype H1N1 again took many human *** disease spread like in a pandemic *** paper proposes a forecasting modeling system for the influenza pandemic using a feed-forward propagation neural network(MSDII-FFNN).This model helps us predict the outbreak,and determines which type of influenza becomes a pandemic,as well as which geographical area is *** collection for the model is done by using IoT *** model is divided into 2 phases:The training phase and the validation phase,both being connected through the *** the training phase,the model is trained using FFNN and is updated on the *** the validation phase,whenever the input is submitted through the IoT devices,the system model is updated through the cloud and predicts the pandemic *** our dataset,the data is divided into an 85%training ratio and a 15%validation *** applying the proposed model to our dataset,the predicted output precision is 90%.

关键词： Influenza pandemic machine learning prediction influenza influenza pandemic prediction forecast pandemic influenza