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A Statistical Survey on the Socioeconomic and Demographic Livelihood of Brick Kiln Workers: A Case Study of Bahawalpur District, Punjab, Pakistan 砖窑工人社会经济和人口生计统计调查:巴基斯坦旁遮普省巴哈瓦尔布尔县案例研究
Fakhra Anwar, Muhammad Mohsin, Sana Arshad
The working population at the brick kilns is considered as the people living under poverty line. This study aims to investigate the socioeconomic and demographic characteristics and housing and living conditions of the brick kiln workers in Bahawalpur district. Total 20 kilns were visited in 5 tehsils of the district as sample sites. A questionnaire was designed and a field survey was conducted by using simple random sampling techniques to collect the data of 400 workers from 20 brick kilns. The quantitative analysis was performed in Statistical Package for Social Sciences (SPSS) v. 21 by applying descriptive and inferential statistics. Findings showed that majority of the workers and heads of working households were male (85.75% and 97.5% in rural and urban kilns respectively) and Saraiki speaking (70%) belonged to Muhajir, Ranagr and Khokhar castes. The early age (14-18 years) marriages were common among the workers especially among the females. Dependency ratio of the kiln workers was 37.6% including mostly the children and aged. Dominant share of the kiln workers (70-80%) were illiterate and very few were literate from primary to intermediate level. The workers’ income varied between PKR 11,000 to 15,000 which was lower than the average wage (PKR 25,000) as per the government rules. Brick moulders and soil suppliers were the main occupants at kilns. Most of the workers were resided in their own houses (1 or 2 rooms) made with kacha (mud made) material. Although various facilities were available to the workers at brick kilns but they have no proper access to safe drinking water (80%), accident risk facility (0%) and first aid (0%) crucial for their health. The chi-square results also verify the miserable social and economic life of the kiln workers. Thus, these facts demonstrated that kiln workers led a meagre life style. This work will serve as a reminder to authorities, planners and Non-Governmental Organizations (NGOs) to take action to improve the living conditions of kiln workers. Lastly, few suggestions were proposed to uplift the lives of the kiln workers.
砖窑工人被视为生活在贫困线以下的人群。本研究旨在调查巴哈瓦尔布尔地区砖窑工人的社会经济和人口特征以及住房和生活条件。研究人员走访了该地区 5 个乡的 20 座砖窑作为样本。设计了一份调查问卷,并采用简单随机抽样技术进行了实地调查,以收集来自 20 座砖窑的 400 名工人的数据。采用描述性和推论性统计方法,在社会科学统计软件包(SPSS)第 21 版中进行了定量分析。调查结果显示,大多数工人和工作户主为男性(农村和城市窑厂分别为 85.75%和 97.5%),讲萨拉伊语(70%),属于穆哈吉尔、拉纳格尔和霍哈尔种姓。早婚(14-18 岁)在工人中很普遍,尤其是女性。窑工的抚养比率为 37.6%,其中大部分是儿童和老人。大部分窑工(70%-80%)是文盲,只有极少数窑工具备初等至中等文化水平。工人的收入在 11 000 至 15 000 卢比之间,低于政府规定的平均工资(25 000 卢比)。砖窑的主要使用者是砖模工和泥土供应商。大多数工人都住在自己的房子里(1 或 2 个房间),这些房子是用卡恰(泥巴)材料建造的。虽然砖窑为工人提供了各种设施,但他们无法获得安全饮用水(80%)、事故风险设施(0%)和对其健康至关重要的急救(0%)。卡方检验结果也证实了砖窑工人悲惨的社会和经济生活。因此,这些事实表明,窑工的生活方式很贫乏。这项研究将提醒当局、规划者和非政府组织采取行动,改善窑工的生活条件。最后,还提出了一些改善窑工生活的建议。
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引用次数: 0
Analytical Solution for Cylindrical Shell of Permeable Material in Fractional Dimensional Space 透气材料圆柱壳在分数维空间中的解析解
M. Akbar, Saeed Ahmed, M. I. Shahzad, Muhammad Ahmad Raza
We have investigated the Laplacian equation in fractional dimensional space (FDS) that is widely used in physics to describe many complex phenomena. Using this concept, we have applied it on a cylindrical shell of permeable material to find the analytical solution of electric potential in FDS. The derivation of this problem is performed by applying Gegenbauer polynomials. The general solution has been obtained in a closed form in the FDS and can be applied to the cylindrical shell for different materials inside the cylinder core and outside the shell. By setting the fractional parameter α = 3, the derived solution is retrieved for the integer order.
我们研究了分数维空间(FDS)中的拉普拉斯方程,该方程在物理学中被广泛用于描述许多复杂现象。利用这一概念,我们将其应用于渗透性材料的圆柱形外壳,以找到分数维空间中电动势的解析解。这个问题的推导是通过应用格根鲍尔多项式进行的。一般解在 FDS 中以封闭形式求得,并可应用于圆柱壳,适用于圆柱芯内和圆柱壳外的不同材料。通过设置小数参数 α = 3,可获得整数阶的导出解。
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引用次数: 0
Enhancing Efficiency of Solar Heater Box with Linear Actuator for Maximizing Solarization 利用线性推杆提高太阳能加热器箱的效率,最大限度地利用太阳能
Agha Mushtaque Ahmed, Imran Khatri, Irfan Ahmed Halepoto, Masood Nazir Khoso
Worldwide, stored grain pests are massively infesting most stored crops and their by-products. The main losses are due to infestation of these pests occurring on various carriers just prior to harvest, during storage or shipping. Methyl bromide and phosphine fumigation have been widely used for phytosanitary treatment of stored grains but are recognized as highly effective in depleting ozone, and similarly, residue-free grains are important for thermal disinfection. Solarization is one of the best ways to manage and disinfect crops, the traditional solarization methods are already practised by farmers but are inefficient to kill all stages of pests and require additional land exposed to the sun. In this work, thermal disinfection systems using solar heaters are proposed, designed, and developed to offset the actual lethal heat window. For the experiment work, the solar heater boxes were constructed in an octagon shape with 135o at the base for trapping maximum heat inside the solar the heater box. The characteristics of the proposed system proved simpler, faster, and inexpensive but equally effective to achieve the desired results in terms of heat generation and seed moisture.
在世界范围内,储藏谷物的害虫正在大规模侵袭大多数储藏作物及其副产品。主要的损失是由于这些害虫在收获前、储存或运输过程中对各种载体的侵扰造成的。甲基溴和磷化氢熏蒸已被广泛用于储藏谷物的植物检疫处理,但被认为对消耗臭氧非常有效,同样,无残留谷物对热消毒也很重要。日晒是对作物进行管理和消毒的最佳方法之一,传统的日晒方法已被农民采用,但杀灭所有阶段害虫的效率不高,而且需要更多的土地暴露在阳光下。在这项工作中,提出、设计和开发了使用太阳能加热器的热消毒系统,以抵消实际的致死热窗口。在实验工作中,太阳能加热器箱呈八角形,底部呈 135°,以便在太阳能加热器箱内捕获最大热量。事实证明,拟议系统的特点是更简单、更快速、更廉价,但在发热量和种子湿度方面同样有效,达到了预期效果。
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引用次数: 0
Measuring the Performance of Supervised Machine Learning Algorithms for Optimizing Wheat Productivity Prediction Models: A Comparative Study 衡量用于优化小麦生产力预测模型的监督机器学习算法的性能:比较研究
Malik Muhammad Hussain, Farrukh Shehzad, Muhammad Islam, Ashique Ali Chohan, Rashid Ahmed, H. M. Muddasar Jamil Shera
The issue of precise crop prediction gained worldwide attention in the midst of food security concerns. In this study, the efficacies of different machine learning (ML) algorithms, i.e., multiple linear regression (MLR), decision tree regression (DTR), random forest regression (RFR), and support vector regression (SVR) are integrated to predict wheat productivity. The performances of ML algorithms are then measured to get the optimized model. The updated dataset is collected from the Crop Reporting Service for various agronomical constraints. Randomized data partitions, hyper-parametric tuning, complexity analysis, cross-validation measures, learning curves, evaluation metrics and prediction errors are used to get the optimized model. ML model is applied using 75% training dataset and 25% testing datasets. RFR achieved the highest R2 value of 0.90 for the training model, followed by DTR, MLR, and SVR. In the testing model, RFR also achieved an R2 value of 0.74, followed by MLR, DTR, and SVR. The lowest prediction error (P.E) is found for the RFR, followed by DTR, MLR, and SVR. K-Fold cross-validation measures also depict that RFR is an optimized model when compared with DTR, MLR and SVR.
在粮食安全问题上,作物精确预测问题受到了全世界的关注。在本研究中,综合使用了不同的机器学习(ML)算法,即多元线性回归(MLR)、决策树回归(DTR)、随机森林回归(RFR)和支持向量回归(SVR)来预测小麦的生产力。然后测量 ML 算法的性能,以获得优化模型。更新的数据集是从作物报告服务中收集的各种农艺约束条件。使用随机数据分区、超参数调整、复杂性分析、交叉验证措施、学习曲线、评价指标和预测误差来获得优化模型。ML 模型使用 75% 的训练数据集和 25% 的测试数据集。在训练模型中,RFR 的 R2 值最高,达到 0.90,其次是 DTR、MLR 和 SVR。在测试模型中,RFR 的 R2 值也达到了 0.74,其次是 MLR、DTR 和 SVR。RFR 的预测误差(P.E)最小,其次是 DTR、MLR 和 SVR。K-Fold 交叉验证测量结果也表明,与 DTR、MLR 和 SVR 相比,RFR 是一个最佳模型。
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引用次数: 0
New Numerical Approach to Calculate Microstates of Equivalent and Non-Equivalent Electrons 计算等价和非等价电子微观状态的新数字方法
Misha shafi,, Saba Javaid, Roohi Zafar, Ahmed Ali Rajput, Muhammad Mustaqeem Zahid, Muhammad Daniyal
A term symbol is used to describe atomic microstate states, which give the multiplicity and total angular momentum of the atomic state. Russel Sauder coupling scheme is used to generate terms of equivalent and non-equivalent electronic configurations. For equivalent electrons, the terms are calculated using Pauli’s principle, and the number of terms is limited and is calculated by the combination rule. The total possible electrons and total available electrons are used in the combination formula. In case of non-equivalent electrons, the number of terms are found by the permutation rule. The number of terms for equivalent electrons is less than the terms for non-equivalent electrons. The number of possible microstates for p2 and d5  configurations are 15 and 252 respectively. While the number of final microstates for 1p2p and 3d4d configurations are 36 and 100.  In the proposed study, a Python programme was developed that generates the microstate according to filled and half-filled subshell electronic configurations for equivalent, non-equivalent, and combinations of both. Examples of microstates for non-equivalent electrons of configuration 1s2s, sp, sd, ss, 2p3p, pd, pf, 3d4d, df, 4f5f and for equivalent electrons of configuration su, pv, dx, and f y are presented.
术语符号用于描述原子微态,给出原子态的倍率和总角动量。Russel Sauder 耦合方案用于生成等价和非等价电子构型的项。对于等效电子,项是利用保利原理计算的,而项的数量是有限的,并通过组合规则计算。组合公式中使用的是可能电子总数和可用电子总数。在非等价电子的情况下,项数由排列规则计算得出。等价电子的项数少于非等价电子的项数。p2 和 d5 配置的可能微态数分别为 15 和 252。而 1p2p 和 3d4d 配置的最终微态数量分别为 36 和 100。 在拟议的研究中,开发了一个 Python 程序,可根据等效、非等效和两者的组合的填充和半填充子壳电子构型生成微态。文中举例说明了配置为 1s2s、sp、sd、ss、2p3p、pd、pf、3d4d、df、4f5f 的非等效电子以及配置为 su、pv、dx 和 f y 的等效电子的微态。
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引用次数: 0
A Supervised Machine Learning Algorithms: Applications, Challenges, and Recommendations 监督机器学习算法:应用、挑战和建议
Aqib Ali, Wali Khan Mashwani
Machine Learning (ML) is an advanced technology that empowers systems to acquire knowledge autonomously, eliminating the need for explicit programming. The fundamental objective of the machine learning paradigm is to equip computers with the ability to learn independently without human intervention. In the literature, categorization in data mining has received a lot of traction, with applications ranging from health to astronomy and finance to textual classification. The three learning methodologies in machine learning are supervised, unsupervised, and semi-supervised. Humans must give the appropriate input and output and offer feedback on the prediction accuracy throughout the training phase for supervised algorithms. Unsupervised learning methods differ from supervised learning methods because they do not require any training. However, supervised learning methods are more accessible to implement than unsupervised learning methods. This study looks at supervised learning algorithms commonly employed in data classification. The strategies are evaluated based on their objective, methodology, benefits, and drawbacks.  It is anticipated that readers will be able to understand the supervised machine learning techniques for data classification.
机器学习(ML)是一种先进的技术,它使系统能够自主获取知识,无需明确的编程。机器学习范式的基本目标是让计算机具备独立学习的能力,而无需人工干预。在文献中,数据挖掘中的分类法受到了广泛关注,其应用范围从健康到天文,从金融到文本分类。机器学习的三种学习方法是监督式、无监督式和半监督式。在有监督算法的整个训练阶段,人类必须提供适当的输入和输出,并对预测的准确性提供反馈。无监督学习方法与有监督学习方法不同,因为它们不需要任何训练。不过,与无监督学习方法相比,有监督学习方法更容易实现。本研究探讨了数据分类中常用的监督学习算法。根据其目标、方法、优点和缺点对这些策略进行了评估。 希望读者能够理解用于数据分类的监督机器学习技术。
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引用次数: 0
Mathematical Analysis on Spherical Shell of Permeable Material in NID Space NID 空间中透气材料球壳的数学分析
Saeed Ahmed, Muhammad Akbar, Muhammad Imran Shahzad, Muhammad Ahmad Raza, Sania Shaheen
In this paper, we have studied the magnetic shielding effect of a spherical shell analytically in fractional dimensional space (FDS). The Laplacian equation in fractional space predicts the complex phenomena of physics. This is a boundary value problem that has been solved by the separation variable method mathematically by taking low frequency w = 0. Electric potential is obtained in fractional dimensional space for the three regions, namely outside the spherical shell, between the shell and hollow sphere and inside the sphere. Also, the induced dipole moment has been derived. We obtain a general solution that reduces to the classical results by setting fractional parameter α = 3 which takes its value (2 < α ≤ 3).
本文在分数维空间(FDS)中对球形外壳的磁屏蔽效应进行了分析研究。分数空间中的拉普拉斯方程预示着复杂的物理现象。这是一个边界值问题,通过低频 w = 0,用分离变量法在数学上解决了这个问题。在分数维空间中得到了球壳外部、球壳与空心球之间以及球壳内部三个区域的电动势。此外,还得出了感应偶极矩。通过设置分数参数 α = 3(取值为 2 < α ≤ 3),我们得到了与经典结果一致的一般解法。
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引用次数: 0
An Intelligent Decision Support System for Crop Yield Prediction Using Machine Learning and Deep Learning Algorithms 利用机器学习和深度学习算法预测作物产量的智能决策支持系统
Maryum Bibi, S. Rehman, Khalid Mahmood
Agriculture is crucial to economic growth and development. Crop yield forecasting is critical for food production which includes vegetables, fruits, flowers, and cattle. Artificial Intelligence (AI) is rising in agriculture, providing farmers with real-time or long-term insights about their fields. It allows us to identify the areas that require irrigation, fertilization, or pesticide treatment. Statistical models struggle to track complex relationships in crop yields due to numerous factors. Machine Learning (ML) and Deep Learning (DL) algorithms can solve this problem by training themselves in these relationships, enabling accurate predictions in agricultural yield prediction methods. Predicting product performance in agriculture is challenging due to various factors, but profit forecasting improves decision-making, production, economics, and food safety. The present study focuses on the use of ML and DL algorithms to suggest a novel decision support system for crop yield prediction with the objectives to develop a robust, accurate model, investigate algorithm effectiveness, and create a user-friendly system for informed crop production decisions. According to the results, the developed system is capable of making precise predictions, which can support farmers in making better decisions about how to manage their crops. The simulation results demonstrate that the intelligent decision support system proposed for crop yield prediction using ML and DL algorithms is capable of achieving high accuracy and precision. The system can be used to help farmers make better decisions about crop planting and management, which can lead to increased crop yields and profits. The results of our experiment show that our model is better than the others and it achieves an accuracy of 99.82 %. Additionally, we utilized ML to condense the input space while preserving high accuracy.
农业对经济增长和发展至关重要。作物产量预测对于包括蔬菜、水果、花卉和牲畜在内的粮食生产至关重要。人工智能(AI)正在农业领域兴起,为农民提供有关其田地的实时或长期见解。它可以让我们识别需要灌溉、施肥或杀虫剂处理的区域。由于因素众多,统计模型很难跟踪作物产量的复杂关系。机器学习(ML)和深度学习(DL)算法可以通过在这些关系中进行自我训练来解决这一问题,从而在农业产量预测方法中实现准确预测。由于各种因素,预测农业产品性能具有挑战性,但利润预测可以改善决策、生产、经济和食品安全。本研究的重点是使用 ML 和 DL 算法,提出一种新型的作物产量预测决策支持系统,目的是开发一个稳健、准确的模型,研究算法的有效性,并创建一个用户友好型系统,以做出明智的作物生产决策。结果表明,所开发的系统能够进行精确预测,从而帮助农民就如何管理作物做出更好的决策。仿真结果表明,利用 ML 和 DL 算法进行作物产量预测的智能决策支持系统能够实现高精度和高准确性。该系统可用于帮助农民在作物种植和管理方面做出更好的决策,从而提高作物产量和利润。实验结果表明,我们的模型优于其他模型,准确率达到 99.82%。此外,我们还利用 ML 压缩了输入空间,同时保持了较高的准确率。
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引用次数: 0
Evaluation of Bending Length, Rigidity and Modulus of Woven and Knitted Fabrics 评估机织物和针织物的弯曲长度、刚度和模量
Mehreen Ijaz, Namood-e-Sahar, Zohra Tariq
Performance evaluation of textile materials is necessary to determine the use of an end-product. Woven and knitted materials are the most preferred manufacturing techniques due to their certain characteristics suitable for apparel and upholstery. The present study aims at determining the bending length, rigidity and modulus of fabrics through standardized test procedures to measure the draping behaviour of an end product. The results identified the phenomenon that specimens manufactured with woven fabrics were better in drapability compared with knitted fabrics. Moreover, it was identified that type of fiber also plays an important role in determining the stiffness of fabrics such as silk fiber showed excellent results. A comprehensive comparison was made between various types of fabrics. The study can be helpful for textile producers to make amendments to their construction parameters to present acceptable stiffness and draping qualities of fabrics to the end consumers.
要确定最终产品的用途,就必须对纺织材料进行性能评估。梭织和针织材料因其适用于服装和室内装潢的某些特性而成为最受欢迎的制造技术。本研究旨在通过标准化测试程序确定织物的弯曲长度、刚度和模量,以测量最终产品的悬垂性能。结果发现,与针织物相比,用机织织物制造的试样悬垂性更好。此外,还发现纤维类型在决定织物刚度方面也起着重要作用,如丝绸纤维就显示出优异的结果。对各种织物进行了综合比较。这项研究有助于纺织品生产商修改其结构参数,从而向最终消费者展示可接受的织物挺括度和悬垂性。
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引用次数: 0
Nutritional Study of Various Cow Breeds from Bhatta Chowk Lahore (Punjab), Pakistan 巴基斯坦旁遮普省拉合尔巴塔周克各种奶牛品种的营养研究
Asad Gulzar, Bisma Sher, Shabbir Hussain, Abdul Ahad Rasheed, Muhammad Salman, Shazma Massey, Abdur Rauf
The present study was conducted to investigate the nutritional study of cow's milk of various breeds from Bhatta Chowk Lahore. Different cow breeds were found to possess variable amounts of nutritional contents, i.e., highest moisture and ash in the Cholistani cow, highest fat in the Sahiwal cow, highest calcium and specific gravity in the Holstein cow and highest contents of protein, solid-not-fat and total solid in Red Sindhi. Red Sindhi cow’s milk was found to be more nutritious in terms of its richness in proteins, solid-not-fat and total solids whereas Holstein cow was rich in calcium. Calcium was found to be in a range of 550 to 630 ppm with the decrease of concentration in the following order: Sahiwal>Holstein Frisian= Red Sindhi>Cholistani. The Cholistani cow milk showed the presence of 3.126 % protein, 3.5 % fat, 88.2 % moisture, 8.3 % solids-not fat, 11.8 % total solids, 0.791 % ash, 30.5o lactometer reading and 1.0305 kg/m3 specific gravity. Sahiwal cow milk showed 3.318 % of protein, 4.1 % fat, 87.5 % moisture, 30.1o lactometer reading, 1.03 kg/m3 specific gravity, 8.4 % solids-not-fat, 12.5 % total solids and 0.79 % ash. Holstein Frisian’s milk demonstrated the presence of 3.33 % protein, 3.8 % fat, 87.35% moisture, 31o lactometer reading, 1.03 kg/m3 specific gravity, 8.85 % solids-not-fat, 12.65 % total solids and 0.77 % ash. Red Sindhi’s milk revealed the presence of 3.38 % protein, 3.95 % fat, 85.65 % moisture, 28o Lactometer reading, 1.028 kg/m3 specific gravity, 10.4% solids-not-fat, 14.35% total solids and 0.705% ash.
本研究旨在调查拉合尔巴塔周克(Bhatta Chowk)不同品种奶牛牛奶的营养研究。研究发现,不同品种的奶牛拥有不同数量的营养成分,即乔里斯坦奶牛的水分和灰分含量最高,萨希瓦尔奶牛的脂肪含量最高,荷斯坦奶牛的钙和比重含量最高,红信德奶牛的蛋白质、固形物-非脂肪和总固形物含量最高。从蛋白质、固形物-非脂肪和总固形物的含量来看,红信德语奶牛的牛奶营养价值更高,而荷斯坦奶牛的牛奶则富含钙。钙含量在 550 至 630 ppm 之间,依次递减:Sahiwal>Holstein Frisian= Red Sindhi>Cholistani。乔里斯坦牛奶的蛋白质含量为 3.126%,脂肪含量为 3.5%,水分含量为 88.2%,固形物(不含脂肪)含量为 8.3%,总固形物含量为 11.8%,灰分含量为 0.791%,乳脂计读数为 30.5o,比重为 1.0305 kg/m3。萨希瓦尔牛乳的蛋白质含量为 3.318%,脂肪含量为 4.1%,水分含量为 87.5%,泌乳计读数为 30.1o,比重为 1.03 kg/m3,不含脂肪的固体含量为 8.4%,总固体含量为 12.5%,灰分含量为 0.79%。荷斯坦弗里斯兰牛奶的蛋白质含量为 3.33%,脂肪含量为 3.8%,水分含量为 87.35%,泌乳计读数为 31o,比重为 1.03 kg/m3,固形物(不含脂肪)含量为 8.85%,总固形物含量为 12.65%,灰分含量为 0.77%。红色信德牛奶的蛋白质含量为 3.38%,脂肪含量为 3.95%,水分含量为 85.65%,泌乳计读数为 28o,比重为 1.028 kg/m3,固形物(不含脂肪)含量为 10.4%,总固形物含量为 14.35%,灰分含量为 0.705%。
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引用次数: 0
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Proceedings of the Pakistan Academy of Sciences: A. Physical and Computational Sciences
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