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| 1 | 煤炭腐植酸作为土壤改良剂对土壤物理性质和小麦产量的影响显示文摘在巴基斯坦旁遮普的波特瓦地区(33°N,74°E),集约化土壤耕作,土壤侵蚀和低量作物残体的投入是导致土壤结构退化的原因。结构不稳定的土壤很容易受到侵蚀,反过来,土壤侵蚀又会造成作物产量的下降。因此,为了改善土壤的物理性状,在巴基斯坦旁遮普的干旱地区进行了田间试验。试验地点位于大学(拉瓦尔品第PMAS干旱农业大学)研究农场的园区内。2种不同等级(实验室级和商品级)的腐植酸(HA)各分8个水平,施用2年,处理分别为HL_0(对照,不施腐植酸),HL_1 10 kg HA/hm^2,HL_2 20 kg HA/hm^2,HL_3 30 kg HA/hm^2,HL_4 60 kg HA/hm^2,HL_5 90 kg HA/hm^2,HL_6 120 kg HA/hm^2和HL_7 150 kg HA/hm^2,各处理同时配合施用N-P-K(120-90-60 kg/hm^2)。试验期间,检测土壤总有机碳、饱和导水率、团聚体稳定性、容重、土壤含水量和作物产量。试验结果表明,腐植酸能通过影响土壤总有机碳、饱和导水率、团聚体稳定性、容重和土壤含水量等指标来改善土壤的物理性状。2年试验结果均表现为,实验室级的腐植酸比商品级的腐植酸能更好地改善土壤物理性状,从而提高小麦产量。2种不同级别的腐植酸各施用水平与对照相比,差异均显著。在120 kg/hm^2和150 kg/hm^2的腐植酸施用水平下,大多数指标均显示出了相似的结果,因此,从经济角度考虑,120 k g/hm^2的腐植酸用量为最佳施用量。 | Ijaz Ahmad Safdar Ali Khalid Saifullah Khan Fayyazul Hassan Kashif Bashir 何一通 孙志梅 | 2016 | 腐植酸2016,,3: | 10 |
| 2 | Disposal and Use of Sewage on Agricultural Lands in Pakistan: A Review显示文摘Raw sewage is widely used on agricultural soils in urban areas of developing countries to meet water shortages. Although it is a good source of plant nutrients, such sewage also increases the heavy metal load to soils, which may impact the food chain. Management options for sewage contaminated soils includes addition of nontoxic compounds such as lime, calcium sulfate and organic matter, which form insoluble metal complexes, thus reducing metal phytoavailability to plants. In this paper we review the variation in irrigation quality of sewage at different sites and its impact on the quality of soils and vegetables. Although quality of sewage was highly variable at source, yet the effluent from food industries was relatively safe for irrigation. In comparison effluent samples collected from textile, dyeing, calendaring, steel industry, hospitals and clinical laboratories, foundries and tanneries were hazardous with respect to soluble salts, sodium adsorption ratio and heavy metals like zinc, copper, iron, manganese, nickel, cobalt and cadmium. The sewage quality in main drains was better than that at the industry outlet, but was still not safe for irrigation. In general, higher accumulation of metals in fruits and vegetable roots was recorded compared to that in plant leaves. Edible parts of vegetables (fruits and/or leaves) accumulated metals more than the permissible limits despite the soils contained ammonium bicarbonate diethylenetriaminepentaacetic acid extractable metals within a safe range. In either case further scientific investigations are needed to ensure safe management strategies. Cadmium appeared to be the most threatening metal especially in leafy vegetables. It is advisable to avoid leafy vegetables cultivation in sewage irrigated areas everywhere to restrict its entry into food chain. | G. MURTAZA A. GHAFOOR M. QADIR G. OWENS M. A. AZIZ M. H. ZIA SAIFULLAH | 2010 | Pedosphere2010,20,1: | 6 |
| 3 | Removal of HeS during Anaerobic Bioconversion of Dairy Manure显示文摘这研究的主要目的是在实验室规模的试验性的学习检查吸收技术为在里面 H 2 从简历气体的 S 在厌氧的消化过程期间。试剂 FeCl 3 被用来检查 H 2 在厌氧的简历变换过程期间从奶店粪肥生产的 S。实验在 mesophilic 条件下面被进行。简历气体的作文被与火焰光度计和热传导性察觉者装备的煤气的层析分析器分析。在一样的条件下面的试验性的结果表明 H 2 在 FeS 形式的 S 能用 FeCl 3 dosing 从简历气体完全被移开与在厌氧的批 digester。 | Jam Saifullah Lar 李秀金 | 2009 | Chinese Journal of Chemical Engineering2009,17,2: | 4 |
| 4 | A Hybrid Quantum Inspired Particle Swarm Optimization and Least Square Framework for Real-time Harmonic Estimation显示文摘The power quality is becoming an extensively addressing aspect of the power system because of the sensitive operation of the smart grid, awareness of power quality, and the equipment of modern power systems. In this paper, we have conceived a new hybrid Quantum inspired particle swarm optimization and least square(QPSO-LS) framework for real-time estimation of harmonics presented in time-varying noisy power signals. The technique has strong, robust, and reliable search capability with powerful convergence properties. The proposed approach is applied to various test systems at different signal to noise ratio(SNR) levels in the presence of uniform and Gaussian noise. The results are presented in terms of precision, computation time, and convergence characteristics. The computation time decreases by 3-5 times as compared to the existing algorithms. The technique is further authenticated by estimating harmonics of real-time current or voltage waveforms, obtained from light emitting diode(LED) lamp and axial flux permanent magnet synchronous generator(AFPMSG). The results demonstrate the superiority of QPSO-LS over other methods such as LS-based genetic algorithm(GA), particle swarm optimization(PSO), bacterial foraging optimization(BFO), artificial bee colony(ABC), and biogeography based optimization with recursive LS(BBO-RLS) algorithms, in terms of providing satisfactory solutions with a significant amount of robustness and computation efficiency. | Abu Bakar Waqas Muhammad Mansoor Ashraf Yasir Saifullah | 2021 | Journal of Modern Power Systems and Clean Energy2021,9,6: | 3 |
| 5 | Coupling the k-nearest neighbor procedure with the Kalman filter for real-time updating of the hydraulic model in flood forecasting显示文摘The Kalman filter(KF) updating method has been widely used as an efficient measure to assimilate realtime hydrological variables for reducing forecast uncertainty and providing improved forecasts.However,the accuracy of the KF relies much on the estimates of the state transition matrix and is limited due to the errors inherit from parameters and variables of the flood forecasting models.A new real-time updating approach(named KN^2K) is produced by coupling the k-nearest neighbor(KNN) procedure with the KF for flood forecasting models.The nonparametric KNN algorithm,which can be utilized to predict the response of a system on the basis of the k most representative predictors,is still efficient when the descriptions for input-output mapping are insufficient.In this study,the KNN procedure is used to provide more accurate estimates of the state transition matrix to extend the applicability of the KF.The updating performance of KN^2K is investigated in the middle reach of the Huai River based on a onedimensional hydraulic model with the lead times ranging from 2 to 12 h.The forecasts from the KN^2K< are compared with the observations,the original forecasts and the KF-updated forecasts.The results indicate that the KN^2K method,with the Nash-Sutcliffe efficiency larger than 0.85 in the 12-h-ahead forecasts,has a significant advantage in accuracy and robustness compared to the KF method.It is demonstrated that improved updating results can be obtained through the use of KNN procedure.The tests show that the KN^2K method can be used as an effective tool for real-time flood forecasting. | Kailei Liu Zhijia Li Cheng Yao Ji Chen Ke Zhang Muhammad Saifullah | 2016 | International Journal of Sediment Research2016,31,2: | 3 |
| 6 | 四叶草形超宽带漫散射编码超表面显示文摘该文提出了一种结构新颖的四叶草形编码超表面,并利用该超表面实现了超宽带漫散射。所提出的编码超表面具有旋转对称性,它对x极化和y极化波产生相似的反射特性。为了实现1比特编码超表面,该文设计了在15.5~40.5 GHz的频率范围内且相位差为180°±37°的两个超表面单元。采用优化算法得到阵列中单元的最佳排列,从而实现了宽带RCS的缩减。四叶草形编码超表面可以在15.5~26.5 GHz和30.5~40.5 GHz这两个频带内实现10 dB的RCS缩减。该文加工了该编码超表面并与仿真结果进行了比较,从而有效验证了所设计的四叶草形编码超表面可以在宽频带内实现RCS的缩减。 | YASIR Saifullah 杨国敏 徐丰 | 2021 | 雷达学报(中英文)2021,10,3: | 3 |
| 7 | 上下文感知推荐系统:挑战和机遇(英文)显示文摘该文梳理了社会和科学领域中上下文感知推荐系统的主要概念、技术、挑战和未来趋势;其次,分类介绍了可用于基于上下文的推荐的一系列技术和主要框架。除了经典的基于内容、基于协同过滤和基于矩阵分解的技术之外,调研了最近的研究方向,即基于深度学习和基于模糊逻辑的方法。最后,描述了在推荐过程中利用上下文信息的潜在研究机会。 | ALI Waqar 邵杰 KHAN Abdullah Aman TUMRANI Saifullah | 2019 | 电子科技大学学报2019,48,5: | 2 |
| 8 | Assessment of Genetic Variation Within Indian Mustard (Brassica juncea) Germplasm Using Random Amplified Polymorphic DNA Markers显示文摘Genetic diversity among 45 Indian mustard (Brassica juncea L.) genotypes comprising 37 germplasm collections, five advance breeding lines and three improved cultivars was investigated at the DNA level using the random amplified polymorphic DNA (RAPD) technique. Fifteen primers used generated a total of 92 RAPD fragments, of which 81 (88%) were polymorphic. Of these, 13 were unique to accession 'Pak85559'. Each primer produced four to nine amplified products with an average of 6.13 bands per primer. Based on pairwise comparisons of RAPD amplification products, Nei and Li's similarity coefficients were calculated to evaluate the relationships among the accessions. Pairwise similarity indices were higher among the oilseed accessions and cultivars showing narrow ranges of 0.77-0.99. An unweighted pair-group method with arithmetic averages cluster analysis based on these genetic similarities placed most of the collections and oilseed cultivars close to each other, showing a low level of polymorphism between the accessions used. However, the clusters formed by oilseed collections and cultivars were comparatively distinct from that of advanced breeding lines. Genetically, all of the accessions were classified into a few major groups and a number of individual accessions. Advanced breeding lines were relatively divergent from the rest of the accessions and formed independent clusters. Clustering of the accessions did not show any pattern of association between the RAPD markers and the collection sites. A low level of genetic variability of oilseed mustard was attributed to the selection for similar traits and horticultural uses. Perhaps close parentage of these accessions further contributed towards their little diversity. The study demonstrated that RAPD is a simple and fast technique to compare the genetic relationship and pattern of variation among the gene pool of this crop. | Muhammad Ayub Khan Malik Ashiq Rabbani Muhammad Munir Saifullah Khan Ajmal Muhammad Azim Malik | 2008 | Journal of Integrative Plant Biology2008,50,4: | 2 |
| 9 | In vivo laxative, anti-diarrheal, hepatoprotective and diuretic investigations of Sterculia diversifolia and its isolated compounds显示文摘OBJECTIVE:To investigated the laxative,anti-diarrheal,hepatoprotective and diuretic activity of Sterculia diversifolia and its isolated compounds.METHODS:The laxative activity was studied by counting wet stools while anti-diarrheal activity was performed by measuring gastrointestinal tract motility.Hepatoprotective activity was studied by biochemical and histo-pathological analysis while diuretic activity was performed by urine collection protocol.RESULTS:Doses of 30 and 100 mg/kg of crude methanolic extract of Sterculia diversifolia(MESD)stem bark and leaves,significantly(P<0.05,P<0.01)produced wet feces in subjects pretreated with atropine while 8-hydroxyquercetin and dihydroquercetin showed highly significant(P<0.001)results by increasing fecal weight and water contents without producing diarrhea.MESD stem bark and leaves also dose-dependently lowered diar-rhea while 8-hydroxyquercetin and dihydroquercetin showed highly significant(P<0.001)results by producing shaped stools in mice.MESD,8-hydroxyquercetin and dihydroquercetin offered significant protection against histopathological changes in the liver.Diuretic activity of Crude MESD stem bark and leaves extracts shows highly significant diuretic effect while dihydroquercetin showed better results than 8-hydroxyquercetin.CONCLUSION:It is concluded that Sterculia diversifolia and its isolated compounds bears laxative,anti-diarrheal,hepatoprotective and diuretic effects. | Fazle Rabbi Amir Zada Amna Nisar Muhammad Sohail Saifullah Khan Khalil Abid Ali Ahmad | 2021 | Journal of Traditional Chinese Medicine2021,41,5: | 2 |
| 10 | Oral fish oil supplementation raises blood omega-3 levels and lowers C-reactive protein in haemodialysis patients-a pilot study 显示文摘 | Saifullah A Watkins B A Saha C | 2007 | Nephrol Dial Transplant2007,22,12: | 1 |
| 11 | Multi- core real-time scheduling for generalized parallel task models 显示文摘 | Abusayeed Saifullah Li Jing Kunal Agrawal | 2013 | Real Time Systems2013,49,4: | 1 |
| 12 | Investigation on mechanical properties and water stability of porous polyurethane concrete显示文摘Porous polyurethane concrete(PPUC)is a novel material for permeable pavements and is considered as an alternative to porous asphalt or porous cement concrete.However,studies of the mechanical properties of PPUC are still insufficient.In this study,the comprehensive mechanical properties and water stability of PPUC with different gradations and polyurethane dosages were investigated,and its water damage mechanism was preliminarily explored.The results show that the flexural strength and Marshall stability of PPUC can more easily reach the index in the standards of porous cement concrete or porous asphalt,while the compressive strength and abrasion resistance are the weak points of its mechanical properties and need to be further optimized.The mechanical properties and water stability of PPUC were effectively improved by increasing the polyurethane dosage and using continuously graded aggregates.PPUC is more susceptible to water damage because water reacts with the residual isocyanate groups within the polyurethane film to generate carbon dioxide gas,which reduces the cohesion and adhesion performance of polyurethane film.This study provides a comprehensive understanding of the mechanical properties of PPUC and an initial insight into the mechanism of water damage. | Jie Yang Hui Li John Harvey Bing Yang Saifullah Mahmud Yi Zhang Xin Zuo Yu Tian | 2021 | Transportation Safety and Environment2021,3,4: | 1 |
| 13 | Role of mineral nutrition in minimizing cadmium accumulation by plants显示文摘 | Nadeem S Saifullah Sukhdev S M | 2010 | Journal of the Science of Food and Agriculture2010,90,: | 1 |
| 14 | Role of mineral nutrition in minimizing cadmium accumulation by plants 显示文摘 | Sarwar N Saifullah Malhi S S | 2010 | JSci FoodAgric2010,90,: | 1 |
| 15 | Effect of nematophagous fungi on the growth of patato and Globoderarostochiensis and their environmental tolerrance显示文摘 | Saifullah | 1996 | AfroSsian Tournal of Nematology1996,6,2: | 1 |
| 16 | EDTA-assisted Pb phytoextraction显示文摘 | SAIFULLAH MEERS E QADIR M | 2002 | Chemosphere2002,74,10: | 1 |
| 17 | EDTA-assisted Pb phytoextraction显示文摘 | SAIFULLAH MEERS E QADIR M | 2009 | Chemosphere2009,74,: | 1 |
| 18 | Role of mineral nutrition in minimizing cadmium accumulation by plants显示文摘 | Sarwar N Saifullah Malhi S S | 2010 | Journal of the Science of Food and Agriculture2010,90,6: | 1 |
| 19 | Addition of organic and inorganic P sources to soil – Effects on P pools and microorganisms显示文摘 | Muhammad Asghar Malik Petra Marschner Khalid Saifullah Khan | 2012 | Soil Biology and Biochemistry2012,,: | 1 |
| 20 | Semigroups characterized by their fuzzy ideals显示文摘 | Ahsan J Saifullah K Farid Khan M | 1995 | Fuzzy Systems and Mathematics1995,9,1: | 1 |