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AI-based small arms firing skill evaluation system in the military domain

Defence Technology（防务技术） 2023年第11期29卷 164-180页

作者： Rezoanul Hafiz Chandan Nusrat Sharmin Muhaimin Bin Munir Abdur Razzak Tanvir Ahamad Naim Tasneem Mubashshira mokhlesur rahman Department of Computer Science and Engineering Military Institute of Science and TechnologyDhakaBangladesh

Evaluation system of small arms firing has an important effect in the context of military domain. A partially automated evaluation system has been conducted and performed at the ground level. Automation of such system with the inclusion of artificial intelligence is a much required process. This papers puts focus on designing and developing an AI-based small arms firing evaluation systems in the context of military environment. Initially image processing techniques are used to calculate the target firing score. Additionally, firing errors during the shooting have also been detected using a machine learning algorithm. However, consistency in firing requires an abundance of practice and updated analysis of the previous results. Accuracy and precision are the basic requirements of a good shooter. To test the shooting skill of combatants, firing practices are held by the military personnel at frequent intervals that include 'grouping' and 'shoot to hit' scores. Shortage of skilled personnel and lack of personal interest leads to an inefficient evaluation of the firing standard of a firer. This paper introduces a system that will automatically be able to fetch the target data and evaluate the standard based on the fuzzy *** it will be able to predict the shooter performance based on linear regression ***, it compares with recognized patterns to analyze the individual expertise and suggest improvements based on previous values. The paper is developed on a Small Arms Firing Skill Evaluation System, which makes the whole process of firing and target evaluation faster with better accuracy. The experiment has been conducted on real-time scenarios considering the military field and shows a promising result to evaluate the system automatically.

关键词： Machine learning Processing Firing system Artificial intelligence

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Self-assembled V2O5 interconnected microspheres produced in a fish-water electrolyte medium as a high- performance lithium-ion-battery cathode

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Nano Research 2015年第11期8卷 3591-3603页

作者： Md mokhlesur rahman Abu Z. Sadek Irin Sultana Mateti Srikanth Xiujuan J. Dai Matthew R. Field Dougal G. McCulloch Sri Balaji Ponraj Ying Chen Institute for Frontier Materials Deakin University Waurn Ponds VIC 3216 Australia Melbourne Centre for Nanofabrication 151 Wellington Rd Clayton VIC 3168 Australia School of Applied Sciences Applied Physics RMIT University Melbourne VIC 3001 Australia

Interconnected microspheres of V2Os composed of ultra-long nanobelts are synthesized in an environmental friendly way by adopting a conventional anodization process combined with annealing. The synthesis process is simple and low-cost because it does not require any additional chemicals or reagents. Commercial fish-water is used as an electrolyte medium to anodize vanadium foil for the first time. Electron microscopy investigation reveals that each belt consists of numerous nanofibers with free space between them. Therefore, this novel nanostructure demonstrates many outstanding features during electrochemical operation. This structure prevents self-aggregation of active materials and fully utilizes the advantage of active materials by maintaining a large effective contact area between active materials, conductive additives, and electrolyte, which is a key challenge for most nanomaterials. The electrodes exhibit promising electrochemical performance with a stable discharge capacity of 227 mAh·g^-1 at 1C after 200 cycles. The rate capability of the electrode is outstanding, and the obtained capacity is as high as 278 at 0.5C, 259 at 1C, 240 at 2C, 206 at 5C, and 166 mAh·g^-1 at 10C. Overall this novel structure could be one of the most favorable nanostructures of vanadium oxide-based cathodes for Li-ion batteries.

关键词： self-assembly interconnected microspheres fish-water electrolyte V2O5 cathode lithium-ion batteries

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异常高压气藏储量计算的物质平衡方法研究

异常高压气藏储量计算的物质平衡方法研究

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作者： Mohammad mokhlesur rahman Siddiquee 中国石油大学(华东)

学位级别：硕士

近年以来在全世界范围内出现了众多的异常高气藏。在对这类异常高压气藏进行生产分析时,常规的p/z与Gp关系曲线呈现典型的下凹趋势,从而会导致对气藏地质储量和可采储量的严重高估。一般的p/z关系曲线是建立在气体压缩性是气藏唯一驱动... 详细信息

近年以来在全世界范围内出现了众多的异常高气藏。在对这类异常高压气藏进行生产分析时,常规的p/z与Gp关系曲线呈现典型的下凹趋势,从而会导致对气藏地质储量和可采储量的严重高估。一般的p/z关系曲线是建立在气体压缩性是气藏唯一驱动机理的假设基础之上,而这一假设仅仅是在低压封闭气藏中是成立的。在异常高压气藏中,除了气体膨胀之外,地层水的膨胀,岩石的膨胀以及非压实页岩引起的水的侵入都会对产气量有一定的贡献。本论文重点对异常高压气藏的生产数据分析进行研究,分析了异常高压气藏动态分析的二种物质平衡方法,包括基于压缩系数法、不依赖压缩系数法。本研究的主要目标是探讨这些方法的应用条件和理论基础,并对其优缺点进行分析。另外,本论文以墨西哥湾的几个气藏为例,对这些物质平衡方法在计算地质储量方面进行了对比研究,并对各种输入参数对计算结果的影响进行了敏感性研究。通过研究发现,在异常高压气藏动态分析中,岩石和水的压缩系数不能被忽略。实例气藏储量计算也证明,不依赖压缩系数法(如Roach法、Elsharkawy法、Bernard法)绘图数据分散,不易找出直线段,然而这些方法不能正确评估气藏储量,但该方法会同时计算出地层压缩系数值。另一方面,Ramagost-Farshad和Moghadam外推法(包含压缩系数值)对三个异常高压气藏都得出了比较可靠的地质储量。另外本研究还应用了Ronald Guns动态曲线法和压力绘图法(由Becerra-Arteaga发明),这两种方法和体积法相比,对气藏储量评估的效果比较理想。在敏感性分析中发现,岩石的压缩系数和早期压力数据的变化对储量计算影响较大,而地层水的压缩系数对储量计算的影响较小。鉴于石油工业中普遍存在对气藏特别是异常高压气藏的储量估算误差,本论文对储量估算可靠性的研究对这类气藏的评价、分析预测以及经济决策都具有十分重要的意义。

关键词：异常高压气藏物质平衡方法动态预测气藏储量计算敏感性分析

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Integrated Nutrient Management Improves Productivity and Quality of Sugarcane(Saccharum Officinarum L.)

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Phyton-International Journal of Experimental Botany 2022年第2期91卷 439-469页

作者： Md.Shamsul Arefin Md.Ariful Islam Md.mokhlesur rahman Md.Abdul Alim Sabry Hassan Mahmoud F.K.Soliman Mohamed M.Hassan Rajan Bhatt Akbar Hossain Physiology and Sugar Chemistry Division Bangladesh Sugarcrop Research InstituteIshurdi6620Bangladesh On-Farm Research Division Bangladesh Agricultural Research InstitutePabna6600Bangladesh Department of Agricultural Chemistry Bangladesh Agricultural UniversityMymensingh2202Bangladesh Department of Food Technology and Rural Industries Bangladesh Agricultural UniversityMymensingh2202Bangladesh Department of Biology College of ScienceTaif UniversityTaif21944Saudi Arabia Nature Conservation Sector Egyptian Environmental Affairs AgencyCairo11728Egypt Regional Research Station Panjab Agricultural UniversityKapurthala144601India Bangladesh Wheat and Maize Research Institute Dinajpur5200Bangladesh

Sugarcane is one of the major important sugar yielding crops in *** an exhaustive crop,sugarcane removes a huge amount of plant nutrients from the ***,the combined use of organic and inorganic fertilizers can be a good approach to deal with nutrient depletion and promote sustainable crop production as well as improve soil ***,an attempt was made to identify the most fruitful and profitable integrated nutrient management on the aspects of growth,yield and quality of sugarcane in two consecutive growing *** treatments:T_(1)=Control,T_(2)=165:55:120:30:10:2.5:4 kg N:P:K:S:Mg:Zn:B ha^(−1),T_(3)=Poultry Litter(PL)at 5 t ha^(−1)+95:51:87:9:10:2.5:4 kg N:P:K:S:Mg:Zn:B ha^(−1),T_(4)=Cow Dung(CD)at 15 t ha^(−1)+36:52:60:17:10:2.5:4 kg N:P:K:S:Mg:Zn:B ha^(−1),T_(5)=Press Mud(PM)at 15 t ha^(−1)+10:50:43:0:10:2.5:4 kg N:P:K:S:Mg:Zn:B ha^(−1),T_(6)=Mustard Oil Cake(MOC)at 0.5 t ha^(−1)+140:54:115:25:10:2.5:4 kg N:P:K:S:Mg:Zn:B ha^(−1)and T_(7)=GM(Green Manure)at 5 t ha^(−1)+140:53:100:28:10:2.5:4 kg N:P:K:S:Mg:Zn:B ha^(−1)were used in this *** years data showed that treatment T_(3)produced the maximum amount of tillers,total dry matter yield,millable sugarcane,cane yield and sugar yield,followed by the T_(4)*** highest stalk heights were recorded in the T_(3)treatment,which was statistically similar to all other treatments except T_(1)and T_(2).The juice quality parameters viz.,brix and pol in cane were found significant in treatment T_(3)while the highest purity was obtained in the T_(7)*** the data of Jaggery(goor)quality parameters,the highest sucrose content,color transmittance,Jaggery(goor)recovery and the lowest ash content of Jaggery(goor)were observed in the T_(3)treatment,which was statistically similar to the T_(4)treatment in both *** highest cost of production was obtained from the T_(6)treatment while the highest gross return,net return and BCR were recorded in the T_(3)*** sig

关键词： Nutrient fertilizer growth physiology yield quality sugarcane

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