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Residual effects of tobacco biochar along with different fixing agents on stabilization of trace elements in multi-metal contaminated soils

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Journal of Environmental Sciences 2020年第1期32卷 299-309页

作者： Altaf Hussain Lahori Monika Mierzwa-Hersztek Muhammad Rashid Shahmir Ali Kalhoro Mehrunisa Memon Zobia Naheed muneer ahmed Zengqiang Zhang College of Natural Resources and Environment Northwest A&F UniversityYanglingShannxi 712100China Department of Environmental Sciences Sindh Madressatul Islam UniversityKarachiPakistan Department of Agricultural and Environmental Chemistry University of Agriculture in KrakowalMickieivicza 2131-120KrakowPoland Faculty of Agriculture Lasbela University of AgricultureWater and Marine SciencesUthal 90150Pakistan Department of Soil Science Sindh Agriculture UniversityTandojamPakistan Agriculture Research Station BaffaMansehraKhyber PakhtunkhwaPakistan

The residual effect of tobacco biochar(TB≥500°C)mono and co-application with Cahydroxide(CH),Ca-bentonite(CB)and natural zeolite(NZ)on the bio-availability of trace elements TE(s)in alkaline soils has not been deeply studied yet.A pot study that had earlier been investigated TB mono and blended with CH,CB and NZ on the immobilization of Pb,Cu Cd,and Zn by Chinese *** crop in the rotation was selected as test plant to assess the residual impact of amendments on stabilization of Pb,Cu Cd,and Zn in mine polluted(M-P),smelter heavily and low polluted(S-HP and S-LP,respectively)*** obtained results showed that stabilization of Pb,Cd,Cu and Zn reached 63.84% with TB+CB,61.19% with TB+CH,83.31% with TB+CH and 35.27% with TB+CH for M-P soil,36.46% with TB+NZ,38.46% with TB+NZ,19.40% with TB+CH and 62.43% with TB+CH for S-LP soil,52.94%TB+NZ,57.65% with TB+NZ,52.94% with TB+NZ,and 28.44% with TB+CH for S-LP ***,TB+CH and TB alone had mobilized Pb and Zn up to19.29% and 34.96% in M-P *** mobility of Zn reached 8.38% with TB+CB and 66.03% with TB for S-HP and S-LP *** uptake and accumulation of Pb,Cd,Cu and Zn in shoot and root were reduced in three polluted ***,the combination of TB along with CH,CB and NZ has been proven to be effective in Pb,Cd,Cu and Zn polluted mine/smelter soils restoration.

关键词： Tobacco biochar Residual effect Trace elements stabilization Maize Soil remediation

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Effect of Storage Temperature and Periods on Some Characteristics of Wheat Flour Quality

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Food and Nutrition Sciences 2015年第12期6卷 1148-1159页

作者： muneer Saif Hasan ahmed University of Mysore Mysore India

A laboratory experiment has been designed and implemented to study the effects of storage temperatures (27.5°C and 37.5°C) and storage periods (day, 3 days, 10 days, 20 days and 30 days) in normal conditions and relative humidity on the characteristics of wheat flour quality, as well as some of the chemical characteristics of flour (moisture content and ratio of wet gluten), the physical properties (color and falling number). Increasing the storage temperature from 27.5°C to 37.5°C has led to decreasing moisture content of flour stored under storage relative humidity of 38% - 70%. It has also resulted in extending the storage period from 1 day to 10 days to a decrease in moisture content of flour, and this decline has increased the storage period up to thirty days. The overlap between these two factors has been significantly affective. As the storage temperature of flour increased from 27.5°C to 37.5°C, the percentage of wet gluten has been increased too, and the storage period was extended to ten days. This has led to a significant increase in the percentage of wet gluten flour. In addition, there was a significant response to the effective overlap between the storage temperatures and periods of storage under study in this manner. Increasing the storage temperature from 27.5°C to 37.5°C has led to significantly increased values of the color of the stored flour. Besides, increasing the storage period one day more has led to decreasing the values of the color of the stored flour. However, there has been no significant change to the subsequent periods of storage. The overlap between both factors of temperature and storage periods has a significant effect on the flour color. There has been a significant decrease of the enzyme activity (the height values of the falling No.). But there is a noticeable increase to the falling No. values of the stored flour by 37.5°C when increasing the storage periods from one day to ten days and thirty days. This effect, nonetheless, has

关键词： Wheat Flour Bread Storage Time Temperature Storage Color Falling Number Wet Gluten Moisture Relative Humidity

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一种并网逆变器有源阻尼LCL滤波器的参数设计方法

一种并网逆变器有源阻尼LCL滤波器的参数设计方法

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作者： muneer ahmed 华南理工大学

学位级别：硕士

由环境友好型能源,即光伏和风能得到了更多的认可。近几年来,在当前的研究领域中,研究人员的主要关注点是环境友好型能源。我们需要知道如何将这些能量连接到我们的主电力系统。并网逆变器滤波器解决了这一问题。本论文的研究对象是滤... 详细信息

由环境友好型能源,即光伏和风能得到了更多的认可。近几年来,在当前的研究领域中,研究人员的主要关注点是环境友好型能源。我们需要知道如何将这些能量连接到我们的主电力系统。并网逆变器滤波器解决了这一问题。本论文的研究对象是滤波电路,缓解电网侧谐波谐振和逆变器侧开关谐波。滤波逆变器在并网模式下的设计,需要很多要求。这就是为什么我们使用滤波器来满足电源的所有要求。在这种情况下,高阶LCL滤波器的要求通常通过紧凑尺寸和重量的精确监管标准目标得到满足。高阶LCL滤波器在频率共振方面产生了一个主要问题;为了克服电气滤波系统中的这一问题,我们引入了阻尼方法。在我的论文报告目标中,我们介绍了新的主动阻尼控制技术,以最小化并网逆变器模式谐振的问题。电流和电压闭环技术已经被引入,并采用了一些新的方法来提高效率。滤波器方程的设计以数学为基础,因此可以将结果推广到不同的应用和功率水平。建立了电感和电容的精确选择准则。建模LCL滤波器。它具有针对有源LCL滤波器栅极连接器逆变器的特定于观测器的设计。最后,通过仿真验证了我提出的模型的结果。

关键词：有源阻尼并网逆变器 LCL滤波器

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不同荷载作用下矩形和圆形钢管混凝土柱力学性能参数化研究

不同荷载作用下矩形和圆形钢管混凝土柱力学性能参数化研究

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作者： ahmed muneer 天津大学

学位级别：硕士

钢管混凝土柱具有性能高、承载力强、延性好等优点,可用于超高层建筑,节省建筑空间。本文采用集中荷载、偏心荷载和循环荷载对矩形和圆形钢管混凝土柱进行了非线性分析,采用理论与数值分析方法,通过改变影响矩形与圆形钢管混凝土柱基本... 详细信息

钢管混凝土柱具有性能高、承载力强、延性好等优点,可用于超高层建筑,节省建筑空间。本文采用集中荷载、偏心荷载和循环荷载对矩形和圆形钢管混凝土柱进行了非线性分析,采用理论与数值分析方法,通过改变影响矩形与圆形钢管混凝土柱基本力学性质的重要参数,来预测结构在不同压缩荷载作用下的破坏机制,同时比较了两种柱体的承载性能。本文提出了使用Abaqus 6.13和OPEENSEES 3.0.3仿真软件开发的非线性有限元数值模型的新系统。钢管混凝土柱的承载能力取决于不同的参数,如深度/钢管厚度比（D/T）比、钢种、混凝土等级、轴压比、长细比（Leff/R）、钢管厚度等.随着柱长比的减小,矩形钢管混凝土柱的轴向承载力增大。矩形钢管混凝土柱的轴向承载力随着钢管厚度的增加而增加,但不增加柱的整体直径。钢管厚度变化2 mm时,钢管混凝土柱的极限承载力提高15～22%,随着矩形钢管混凝土柱轴压比的增大,柱的极限荷载减小。随着柱轴压比增大至0.4～0.6,钢管混凝土柱的抗剪强度迅速下降,导致柱轴破坏。圆钢管混凝土柱在同心荷载作用下,当深厚比由15增加到37.5时,柱的承载力下降了66.9%。当D/t比从15增加到25时,在循环荷载作用下,柱的极限循环荷载降低了131.58%。轴向力比从0.30增加到0.50,CFST柱的横向承载能力降低了43.95%。当将色谱柱的细长比从11.4提高到45.7时,细长柱的最终循环侧向载荷将降低86.6%。通过改变钢级,钢管混凝土柱的极限轴向承载能力随钢屈服强度的增加而增加。在同心荷载作用下,随着钢的屈服强度从235MPa提高到425MPa,柱的承载力提高了24.4%通过将钢的屈服强度从235 MPa提高到420 MPa,柱的最大循环侧向荷载增加44.87%。随着钢号的增加,变形量减小了18.20%。圆形钢管混凝土柱的极限承载力随着混凝土抗压强度的增加而增大。对于同心受压柱,混凝土抗压强度由30Mpa提高到70 MPa,极限承载力提高53.4%;对于循环受压柱,混凝土抗压强度由30MPa提高到70MPa,极限循环侧向强度提高29.88%。随着混凝土标号的增加,变形量减少了10-15%。结果表明,在该参数研究中,RCFST在同心和偏心荷载作用下的极限轴向承载力随D/T的增大而增大;柱的长细比越小,承载力越大随着钢管混凝土柱轴压比的增加,钢管混凝土柱的极限承载力减小。当圆钢管混凝土柱在同心和循环荷载作用下,随着钢号、混凝土号和D/t比的增加,其抗侧强度增加,随着长细比的增加,侧向承载力降低随着钢管混凝土柱轴压比的增大,钢管混凝土柱的侧向承载力减小。长厚比（L/t）对钢管混凝土柱的性能也起着至关重要的作用。较大（L/T）的柱轴向承载能力较小。

关键词：钢管混凝土柱轴心受压偏心受压循环荷载参数化分析有限元分析

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囊泡运输和细胞骨架在植物发育和环境适应中的协同作用

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植物生理学报 2022年第6期58卷 989-1022页

作者：寇晓月 KHOSO muneer ahmed 宋扬李立新东北林业大学生命科学学院东北盐碱植被恢复与重建教育部重点实验室哈尔滨150040

微管和微丝构成的植物细胞骨架对于植物发育和响应环境刺激至关重要。细胞骨架是高度动态且严格调控的网络,为胞内和胞间的交流与生理活动提供微环境。植物内膜系统由内质网、高尔基体、内体、液泡等膜封闭的细胞器组成。这些细胞器相... 详细信息

微管和微丝构成的植物细胞骨架对于植物发育和响应环境刺激至关重要。细胞骨架是高度动态且严格调控的网络,为胞内和胞间的交流与生理活动提供微环境。植物内膜系统由内质网、高尔基体、内体、液泡等膜封闭的细胞器组成。这些细胞器相互联系,完成囊泡运输、增殖、免疫、胁迫应答等细胞活动。内质网是蛋白质合成的平台和分泌途径起始位点。内质网形态和功能的维持主要依赖微丝骨架。真核生物普遍具有内质网-质膜接触位点(EPCS),其功能与内膜动力学、细胞骨架排列以及胞间信号转导密切相关。EPCS还是响应环境刺激的信号平台。由皮层微管和皮层微丝构成的皮层细胞骨架与质膜、细胞壁、植物激素协同作用,调控植物细胞分裂、形态建成和防御。细胞结构与信号之间的相互作用受多种因素以及信号通路的严格调控。简言之,内膜系统与细胞骨架网络协同调控植物发育及其响应并适应环境刺激。本文综述了植物细胞骨架网络和内膜系统在植物发育和防御中的协同作用。

关键词：膜泡运输细胞骨架网络内质网-质膜接触位点细胞壁动力学生长素运输防御成膜体扩张细胞板

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Effect of Salts Stress on the Growth and Yield of Wheat (Triticum aestivum L.)

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American Journal of Plant Sciences 2016年第15期7卷 2257-2271页

作者： Niaz ahmed Kalhoro Inayatullah Rajpar Shahmir Ali Kalhoro Amjad Ali Sajjad Raza muneer ahmed Fahad Ali Kalhoro Muhammad Ramzan Fazli Wahid Soil Survey of Pakistan Devolution Cell Cabinet Division Camp Office Hyderabad Pakistan Department of Soil Science Sindh Agriculture University Tando Jam Pakistan Faculty of Agriculture Lasbela University of Agriculture Water and Marine Sciences Balochistan Pakistan Institute of Soil and Water Conservation Northwest A& F University Yangling China College of Natural Resources & Environment Northwest A&F University Yangling China Department of Plant Breeding and Genetics Sindh Agriculture University Tando Jam Pakistan Department of Plant Production and Technologies Faculty of Agricultural Science and Technology Omer Halisdemir University Nigde Turkey

In order to study the effect of salts stress on the growth and yield of wheat (cv. Inqalab), a pot experiment was conducted in the wire-house of the Department of Soil Science, Sindh Agriculture University Tando Jam. The soil was artificially salinized to a range of salinity levels i.e . EC 2.16, 4.0, 6.0, 8.0 and 10.0 dS·m-1 with different salts (MgCl2 + CaCl2 + Na2SO4). The salinized soil used for the experiment was sandy clay in texture, alkaline in reaction (pH > 7.0) and moderate in organic matter (0.95%) content. The results showed that with increasing salinity there was an increase in the ECe, Na+, Ca2+, Mg2+ and Cl- and decrease in the K+, SAR and ESP values of the soil Increasing salinity, progressively decreased plant height, spike length, number of spikelets spike-1 1000 grain weight and yield (straw and grain). Adverse effects of salts on plants were associated with the accumulation of less K+ and more Na+ and Cl- in their flag leaf sap, grains and straw. This resulted in lower K+:5Na+ ratio in flag leaf sap, grains and straw of wheat plants. These results indicated that the effects of salts stress were greater at 10 than at 8, 6 and 4 EC dS·m-1.

关键词： Salinity Tolerance Effect Yield Wheat

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Correlation and Regression Analysis for Yield Traits in Wheat (Triticum aestivum L.) Genotypes

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Natural Science 2016年第3期8卷 96-104页

作者： Athar Hussain Bhutto Asghar Ali Rajpar Shahmir Ali Kalhoro Amjad Ali Fahad Ali Kalhoro muneer ahmed Sajjad Raza Niaz ahmed Kalhoro Department of Plant Breeding and Genetics Sindh Agriculture University Tando Jam Pakistan Faculty of Agriculture Lasbela University of Agriculture Water & Marine Sciences Uthal Pakistan College of Natural Resources and Environment Northwest A&F University Yangling China Soil Survey of Pakistan Devolution Cell Cabinet Division Camp Office Hyderabad Pakistan

The present research work was carried out at Southern Wheat Research Station, Tandojam during the growing season 2013-14 in order to work out correlation and regression analysis for yield traits in wheat genotypes. The experiment was laid out in a Randomized Complete Block Design with three replications. Eight bread wheat genotypes such as Mehran, Sarsabz, TJ-83, SKD-1, Inqlab, A. Sattar, Sehar and Sassui were used to examine correlation and regression. Seven traits, viz.;plant height, tillers plant-1, spike length, spikelet’s spike-1, grains spike-1, seed index and grain yield plant-1 were studied. The analysis of variance revealed significant differences among the genotypes for plant height, tillers plant-1, spike length, spikelet’s spike-1, grains spike-1, seed index and grain yield plant-1. Based on mean performance, variety Sarsabz gave maximum plant height (95.46), produced maximum tillers plant-1 (4.40), gave more grain spike-1 (63.13), TJ-83 gave highest seed index (47.260), and was next ranker in spike length-1 (12.07), spikelet’s spike-1 (19.13), grains spike-1 (59.86), and grain yield plant-1 (9.86) among the genotypes. The phenotypic correlations revealed that tillers plant-1 and grains spike-1 were highly positively associated;hence these yield components can be used as reliable selection criteria to improve grain yield in wheat. Thus estimation of correlation and regression analysis among yield and yield components may provide effective selection criteria to improve wheat grain yield. The results from correlation and regression of plant height indicated significantly positive association with spikelet’s spike-1, tillers plant-1 and grains spike-1 which revealed that increase in plant height will cause corresponding increase in associated traits.

关键词： Wheat Grain Yield Genotype Analysis

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Smart Building Design to Improve the Energy Consumption at an Office Room

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Smart Grid and Renewable Energy 2022年第9期13卷 209-221页

作者： Saleh Babaa Abdul Aziz Al Rawahi Angala Subramanian Abdullah Humaid Alshibli Shahid Khan Martin Khzouz muneer ahmed Ibrahim Ashrafi Systems Engineering Department Military Technological College (Affiliated with University of Portsmouth UK) Muscat Oman

Buildings are becoming smarter as a result of a variety of advanced technologies that enable energy management, optimal space utilization, and smart surveillance for safety, among other things. Energy-efficient smart building ideas and execution are of great interest and top priority due to the building’s occupants’ misused and high-power consumption. This paper addresses the design and execution of an energy management system that includes a solar power system for generating power for the building’s needs and a PIR-based automation system for efficient power use. This project was carried out at the Military Technological College (MTC) in Muscat, in the system engineering department’s offices. This project seeks to generate power for the building’s energy needs using solar photovoltaic panels and reduce energy consumption within the office using a PIR-based automation system. The results demonstrate that after the breakeven point (the time it takes to recoup the initial investment), it can provide power to the building for another 17 years. The calculations and practical results presented in this study approve that the system is extremely helpful.

关键词： Smart Building Design Energy Consumption Solar Power Passive Infra Red Sensor

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Effect of Different Levels of Phosphorus and Method of Application on the Growth and Yield of Wheat

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Natural Science 2016年第7期8卷 305-314页

作者： Shahzado Noonari Shahmir Ali Kalhoro Amjad Ali Amanullah Mahar Sajjad Raza muneer ahmed Syed Fayaz Ali Shah Sana Ullah Baloch Department of Agronomy Sindh Agriculture University Tandojam Pakistan Institute of Soil & Water Conservation Northwest A&F University Yangling China Faculty of Agriculture Lasbela University of Agriculture Water and Marine Science Uthal Pakistan College of Natural Resources & Environment Northwest A&F University Yangling China Agricultural Research Institute (Tarnab) Peshawar Pakistan Key Laboratory of Crop Physiology Ecology and Production Huazhong Agricultural University Wuhan China

An experiment was conducted to evaluate the productivity of wheat under different levels of phosphorus and method of application at Department of Agronomy, Sindh Agriculture University, Tandojam. Experiment was laid out in a RCBD (factorial) with three replications. The treatments were four phosphorus levels (P1 = 0 Kg?ha–1 + Recommended Nitrogen, P2 = 30 Kg?ha–1 + Recommended Nitrogen, P3 = 60 Kg?ha–1 + Recommended Nitrogen and P4 = 90 Kg?ha–1 + Recommended Nitrogen) and two placement methods (A1 = Drilling method and A2 = Broadcast method). The statistical analysis of phosphorus levels and placement exhibited significant differences to the maturity days, plant height, tiller production, spike length, grains per spike, seed index, harvest index and grain yield ha–1. However, the interactions of P levels and placement in all crop characters were non-significant except the grain yield/ha–1. The results revealed that application of 90 kg P ha–1 prolonged 143 days for maturity, taller plants (100.16 cm), more tiller plant–1 (13.50), lengthy spikes (12.83 cm), more grains spike–1 (51.33), heavier seed index (48.16 g), better harvest index (50.82%) and satisfactory grain yield (4240.50 Kg?ha–1). The unit increase in grain yield was positively correlated with the increased values of observed crop parameters by extending the values of maturity r = 0.85, plant height r = 0.94, tillers plant r = 0.96, spike length r = 0.95, grains spik–1 r = 0.97, seed index r = 0.95 and harvest index r = 0.97. It was concluded that 90 kg P ha–1 was superior level of phosphorus if, applied with seed drilling for obtaining satisfactory grain yield of wheat crop.

关键词： Wheat Phosphorous Broadcasting Drilling Yield

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Screening Selected Linseed (Linum usitatissimum L.) Genotypes for Yield Performance in Sindh, Pakistan

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Natural Science 2016年第2期8卷 53-65页

作者： Shoaib Gul Asghar Ali Rajper Fahad Ali Kalhoro Shamir Ali Kalhoro Amjad Ali Fayaz Ali Shah Sajjad Raza muneer ahmed Department of Plant Breeding and Genetics Sindh Agriculture University Tando Jam Pakistan Faculty of Agriculture Lasbela University of Agriculture Water & Marine Sciences Lasbela Pakistan Institute of Soil and Water Conservation Northwest A&F University Yangling China College of Natural Resources and Environment Northwest A&F University Yangling China Agriculture Research Institute Tarnab Peshawar Pakistan

The present study was carried out during the year 2013-14 on the screening of the selected linseed genotypes for yield performance in Sindh, Pakistan. The experiment was laid out at the experimental fields of Oilseeds Section, Agriculture Research Institute, Tandojam in a three replicated randomized complete block design. Twelve linseed genotypes (L-53, C-W-2, Shikarpur 2, P-16-4, L-8, 11-106, Hala 3, L-17, Santane, Summit, L-10 and check llsi 90) were screened for their agronomic performance and correlations amongst yield and its contributing traits were calculated. The analysis of variance suggested significant (P -16-4 surpassed Ilsi-90 for primary branches;and most of the remaining genotypes were at par with the commercial check for primary branches. Genotype L-10 surpassed the commercial check for capsules plant-1 and L-8 was at par with the commercial check;while none of the genotypes could surpass commercial check variety for seed index, but 11-106, Hala-3 and Summit also showed promising performance regarding the seed index. All the genotypes tested in this experiment such as L-53, C-W-2, Shikarpur 2, P-16-4, L-8, 11-106, Hala 3, L-17, Santane, Summit, L-10 surpassed the commercial check variety Ilsi-90 for seed yield plot-1. The correlation coefficient for yield and its contributing traits of linseed genotypes showed a positive and significant (P -1 vs seed yield plant-1 (r = 0.3334*), days to maturity vs spike length (r = 0.5384**), days to 75% flowering vs days to 90% maturity (r = 0.4073**), days to 75% flowering vs seed index (r = 0.429

关键词： Selected Linseed

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