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| 1 | 并行查询下查询执行计划的选择显示文摘查询是数据库系统的主要负载,其效率决定了数据库性能的好坏。一个查询存在多种执行计划,当前,查询优化器只能按照数据库系统的配置参数,静态地为查询选择一个较优的执行计划。并行查询间存在复杂多变的资源争用,很难通过配置参数准确反映,而且同一执行计划在不同情景下的效率并不一致。并行查询下执行计划的选择需考虑查询间的相互影响--查询交互。基于此,提出了一种在并行查询下度量查询受查询交互影响大小的标准QIs。针对并行查询下查询执行计划的选择,还提出了一种动态地为查询选择执行计划的方法TRating,该方法通过比较查询组合中按不同执行计划执行的查询受查询交互影响的大小,选择受查询交互影响较小的执行计划作为该查询的较优执行计划。实验结果表明,TRating方法为查询选择较优执行计划的准确率达61%,相比查询优化器提高了25%;而且在为查询选择次优执行计划时,其准确率也高达69%。 | 裴泽锋 牛保宁 张锦文 Amjad Muhammad | 2020 | 计算机应用2020，40，2： | 4 |
| 2 | Mechanisms and molecular approaches for heat tolerance in rice (Oryza sativa L.) under climate change scenario显示文摘Rice, a staple cereal crop in many parts of the world, has been confronted with multiple environmental stresses including high temperature, negatively impacts the booting as well as anthesis growth stages. The situation is further complicated by the changing climatic conditions, resulting in gradual escalation of temperature as well as changing the rainfall pattern and frequency, thus raising a concern of food security worldwide. The situation can be combat by developing rice varieties with excellent genetics with improved morpho-physiological, biochemical, and molecular mechanisms, together can minimize the adverse effects of heat stress. Here, several strategies(encompassing genetic and genomic, and mechanisms involved) for mitigating the impact of high temperature on rice have been discussed. Finally, the utilization of genomic knowledge in augmenting the conventional breeding approaches have been comprehensively elaborated to develop heat tolerant germplasm. | Syed Adeel Zafar Amjad Hameed Muhammad Amjad Nawaz MA Wei Mehmood All Noor Muzammil Hussain Mehboob-ur-Rahman | 2018 | Journal of Integrative Agriculture2018，17，4： | 4 |
| 3 | Slippery Photothermal Trap for Outstanding Deicing Surfaces显示文摘Ice accumulation is a safety and operational threat in power lines,wind turbines,and transportations.Surfaces having both passive anti-icing and active deicing functionalities are very rare.Here,we report a self-cleaning slippery photothermal trap,which is icephobic passively and deice the surfaces actively by converting sun light to heat at the ice-substrate interface.The photothermal trap consists of three layers:a candle soot layer act as solar radiation absorber,a magnetic iron oxide Fe_(3)O_(4) nanoparticles layer act as heat spreader for lateral dispersal of sun light,and Room Temperature Vulcanized(RTV)insulation to reduce the transverse heat loss.Upon illumination under microsolar 300,the temperature of the surface increased by 40℃ within 200 s.The heat confinement at the magnetic Fe_(3)O_(4) na-noparticles layer leads to rapid increase of the surface temperature,ice start to melt and silicone lubricant facilitates the ice removal.The slippery photothermal trap removed the frozen droplet(10 fiL)within 40 s upon the illumination of sun light and the frozen droplet was completely converted into water after 7 min illumination of solar light at-20℃.The developed slippery photothermal trap also melted the fully frost covered layer within 100 s at-20℃ under sunlamp.The average defrosted length(25 mm)was also observed by irradiation of laser light for 45 s.The self-cleaning slippery photothermal coating showed outstanding deicing performance at subzero temperature for long term due to the infusion of silicone oil into the nanostructures and same chemical composition with binder. | Muhammad Imran Jamil Qiongyan Wang Amjad Ali Munir Hussain Tariq Aziz Xiaoli Zhan Qinghua Zhang | 2021 | Journal of Bionic Engineering2021，18，3： | 3 |
| 4 | High-dose-rate intraluminal brachytherapy during preoperative chemoradiation for locally advanced rectal cancers显示文摘AIM:To determine the feasibility and safety of high dose rate intraluminal brachytherapy(HDR-ILBT) boost during preoperative chemoradiation for rectal cancer.METHODS:Between 2008 and 2009,thirty-six patients with locally advanced rectal cancer(≥ T3 or N+),were treated initially with concurrent capecitabine(825 mg/m2 oral twice daily) and pelvic external beam radiotherapy(EBRT)(45 Gy in 25 fractions),then were randomized to group A;HDR-ILBT group(n = 17) to receive 5.5-7 Gy×2 to gross tumor volume(GTV) and group B;EBRT group(n = 19) to receive 5.4 Gy×3 fractions to GTV with EBRT.All patients underwent total mesorectal excision.RESULTS:Grade 3 acute toxicities were registered in 12 patients(70.6%) in group A and in 8(42.1%) in group B.Complete pathologic response of T stage(ypT0) in group A was registered in 10 patients(58.8%) and in group B,3 patients(15.8%) had ypT0(P < 0.0001).Sphincter preservation was reported in 6/9 patients(66.7%) in group A and in 5/10 patients(50%) in group B(P < 0.01).Overall radiological response was 68.15% and 66.04% in Group A and B,respectively.During a median follow up of 18 mo,late grade 1 and 2 sequelae were registered in 3 patients(17.6%) and 4 patients(21.1%) in the groups A and B,respectively.CONCLUSION:HDR-ILBT was found to be effective dose escalation technique in preoperative chemoradiation for rectal cancers,with higher response rates,downstaging and with manageable acute toxicities. | Mutahir Ali Tunio Mansoor Rafi Altaf Hashmi Rehan Mohsin Abdul Qayyum Mujahid Hasan Amjad Sattar Muhammad Mubarak | 2010 | World Journal of Gastroenterology2010，16，35： | 3 |
| 5 | Ethnobotanical inventory and medicinal uses of some important woody plant species of Kotli,Azad Kashmir,Pakistan显示文摘Objective:To document ethnobotanical informations of useful woody plant species in the region of Kotli,Azad Kashmir.Methods:An ethnobotanical survey was conducted in Kotli.Data were collected by interview and semi structured questionnaire from selected local informants and traditional practitioners as well as by field assessment.Results:The present study documented the etnobotanical uses of 33 woody plant species.Most of the species have been used for dual purpose.Only 5 species are used for one purpose.Study revealed all species have medicinal value,among which 21 were used as fuel wood species,16 as fodder species,4 as timber wood species,12 as edible fruit species,6 as fence or hedge plant,7 as ornamental species and 12 species had other uses.Conclusions:Medicinal plants are still widely used for health care by locals of Kotli.Some species of woodlands seem to be vulnerable to overcollection and deforestation.As the young generation is diverted toward allelopathic medicines,ethnobotanical knowledges of important medicinal plants are restricted to the old people only.It is suggested to close the forest of district Kotli for next two to three decades for the conservation of plant biodiversity. | Muhammad Shoaib Amjad Muhammad Arshad | 2014 | Asian Pacific Journal of Tropical Biomedicine2014，4，12： | 3 |
| 6 | Experimental study on repeatedly loaded foundation soil strengthened by wraparound geosynthetic reinforcement technique显示文摘In the recent past,the potential benefits of wraparound geosynthetic reinforcement technique for constructing the reinforced soil foundations have been reported.This paper presents the experimental study on the behaviour of model strip footing resting on sandy soil bed reinforced with geosynthetic in wraparound and planar forms under monotonic and repeated loadings.The geosynthetic layers were laid according to the reinforcement ratio to minimise the scale effect.It is found that for the same amount of reinforcement material,the wraparound reinforced model resulted in less settlement in comparison to planar reinforced models.The efficiency of wraparound reinforced model increased with the increase in load amplitude and the rate of total cumulative settlement substantially decreased with the increase in number of load cycles.The wraparound reinforced model has shown about 45% lower average total settlement in comparison to unreinforced model,while the double-layer reinforced model has about 41% lower average total settlement at the cost of approximately twice the material and 1.5 times the occupied land width ratio.Moreover,wraparound models have shown much greater stability in comparison to their counterpart models when subjected to incremental repeated loading. | Muhammad Nouman Amjad Raja Sanjay Kumar Shukla | 2021 | Journal of Rock Mechanics and Geotechnical Engineering2021，13，4： | 2 |
| 7 | Mycorrhiza and Phosphate Solubilizing Bacteria:Potential Bioagents for Sustainable Phosphorus Management in Agriculture显示文摘Phosphorus(P)is a critical nutrient that plays an essential role in improving soil fertility for optimum plant growth and productivity.It is one of the most deficient macro-nutrients in agricultural soils after nitrogen and is considered inadequate for plant growth and production.To P availability in soils,the farmers are applying huge amounts of synthetic P fertilizers that adversely affect the wider environment,groundwater,soil fertility and microbial population.Many beneficial microbes are known to release and supply soluble P for improving growth and yield of a variety of plants in a sustainable manner in P deficient soils.Thus,inoculation of these microbes,including arbuscular mycorrhizal fungi(AMF)and phosphate solubilizing bacteria(PSB)to soil to enhance crop production without harming the environment,is an alternative approach to chemical fertilizers.The combined role of AMF and PSB in P solubilization is not well understood and the application and mode of action of these microbial groups are often naive due to variation in the environment.Therefore,the current review article would develop a better understanding of the interactive role and mechanisms of AMF and PSB in improving P availability from both organic and inorganic sources in a sustainable crop production system.Finally,the current review would loop out further avenues for researchers interested to commercially produce effective AMF and PSB-based biofertilizers for sustainable management of phosphorus over a wide range of agricultural crops worldwide. | Fazli Wahid Muhammad Sharif Shah Fahad Amjad Ali Muhammad Adnan Rafiullah Shah Saud Subhan Danish Muhammad Arif Ali Niaz Ahmed Hüseyin Arslan Doğan Arslan Murat Erman Ayman EL Sabagh Fatemeh Gholizadeh Rahul Datta | 2022 | Phyton-International Journal of Experimental Botany2022，91，2： | 2 |
| 8 | Impacts of solar multiple on the performance of direct steam generation solar power tower plant with integrated thermal storage显示文摘太阳多重(SM ) 并且热存储能力是为揭示直接蒸气产生(DSG ) 的表演的二个关键设计参数太阳的力量塔植物。在解决的陆地区域的情况中, SM 和热存储电容能被优化由调整发电产量获得电(LCOE ) 的最小的 levelized 费用。拿双接收装置的 DSG 有 100 MW 在是的 Sevilla 的 e 一个参考盒子,最小的 LCOE 是 21.77 /kWh 有 1.7 的 SM 的 e 和 3 h 的一个热存储能力。除 Sevilla 以外,二个另外的地点也被介绍讨论年度 DNI 的影响。什么时候就稍微与 Sevilla,最小的 LCOE 和圣何塞地点的最佳的 SM 的盒子相比变化,当在 32.8% 的主教地点减少和最佳的 SM 的最小的 LCOE 被归结为 1.3 时。太阳的领域等价物电的尺寸的影响也被学习。最小的 LCOE 与太阳的地的尺寸减少,当最佳的 SM 和热存储能力仍然保持未改变时。另外,在分系统的不同投资的敏感被调查。以最佳的 SM 和热存储能力,他们能与热存储系统的费用减少,但是与发电联合起来的费用增加。 | Yah LUO Xiaoze DU Lijun YANG Chao XU Muhammad AMJAD | 2017 | Frontiers in Energy2017，11，4： | 2 |
| 9 | A Hybrid Deep Learning Architecture for the Classification of Superhero Fashion Products:An Application for Medical-Tech Classification显示文摘Comic character detection is becoming an exciting and growing research area in the domain of machine learning.In this regard,recently,many methods are proposed to provide adequate performance.However,most of these methods utilized the custom datasets,containing a few hundred images and fewer classes,to evaluate the performances of their models without comparing it,with some standard datasets.This article takes advantage of utilizing a standard publicly dataset taken from a competition,and proposes a generic data balancing technique for imbalanced dataset to enhance and enable the in-depth training of the CNN.In addition,to classify the superheroes efficiently,a custom 17-layer deep convolutional neural network is also proposed.The computed results achieved overall classification accuracy of 97.9%which is significantly superior to the accuracy of competition’s winner. | Inzamam Mashood Nasir Muhammad Attique Khan Majed Alhaisoni Tanzila Saba Amjad Rehman Tassawar Iqbal | 2020 | Computer Modeling in Engineering & Sciences2020，，9： | 1 |
| 10 | Prevalence of HBV infection in suspected population of conflict-affected area of war against terrorism in North Waziristan FATA Pakistan显示文摘 | Amjad Ali Muhammad Nisar Muhammad Idrees Habib Ahmad Abrar Hussain Shazia Rafique Sabeen Sabri Habib ur Rehman Liaqat Ali Shariatullah Wazir Tariq Khan | 2012 | Infection, Genetics and Evolution2012，，8： | 1 |
| 11 | A simple and effective method to estimate the model parameters of dielectric barrier discharge ozone chamber 显示文摘 | Muhammad Amjad Zainal Salam Mochammad Facta | 2012 | IEEE Transactions on Instrumentation and Measurement2012，61，6： | 1 |
| 12 | Breeding for pre-harvest sprouting resistance in bread wheat under rainfed conditions显示文摘Pre-harvest sprouting in wheat is the germination of seeds within the spikes when rains occur after or during grain ripening, which occurs commonly in the barani tract of Pakistan. Therefore, 10 cultivars and five advanced lines of spring bread wheat were evaluated for pre-harvest sprouting resistance. After natural rainfall,seeds were immediately collected from the wet spikes and tested for germinating ability. Three different germination tests were applied to hand-threshed seed:(1) spikes threshed on the day of sampling and germination tested immediately,(2) spikes threshed on the day of sampling and germination tested 1 week later, and(3) spikes threshed 1 week after sampling and germination test immediately after threshing. Seeds and spikes kept for 1 week were place on blotting paper at room temperature.Cultivars BARS-09, 09 FJ17, Doukkala-12, NARC-09 and Ouassou-20 exhibited higher sprouting resistance while other genotypes were susceptible to pre-harvest sprouting in each of the three tests. A diallel crossing was conducted with six susceptible and two resistant genotypes to assess the genetic behavior of pre-harvest sprouting resistance.The combining ability(CA) demonstrated a higher proportion of additive genetic effects for sprouting resistance, because of higher variance of general and specific CA for both parameters under study. Doukkala-12 and BARS-09 showed increased pre-harvest sprouting resistance in their F1 descendants. | Muhammad ZEESHAN Waheed ARSHAD Muhammad Imran KHAN Shiraz ALI Ali NAWAZ Amina BATOOL Muhammad TARIQ Muhammad Imran AKRAM Muhammad Amjad ALI | 2018 | Frontiers of Agricultural Science and Engineering2018，5，2： | 1 |
| 13 | Ethnobotanical inventory and folk uses of indigenous plants from Pir Nasoora National Park,Azad Jammu and Kashmir显示文摘Objective:To document the medicinal and other folk uses of native plants of the area with a view to preserve the ethnobotanical knowledge associated with this area.Methods:The fieldwork was conducted during a period of one year.Data were collected through a semi-structured questionnaire and interviews with indigenous tribal people and traditional health practitioners residing in the study area.Results:The present study documented ethnobotanical uses of 104 plant species belonged to93 genera and 51 families.Results revealed that most of the documented species were used medicinally(78 spp..44.07%).Leaves were found to be the most frequently used part(69 spp..42.86%) for the preparation of indigenous recipes and for fodder.Conclusions:The current research contributes significantly to the ethnobotanical knowledge.and depicts a strong human-plant interaction.There is an urgent need to further document indigenous uses of plants for future domestication. | Muhammad Shoaib Amjad Muhammad Arshad Rahmatullah Qureshi | 2015 | Asian Pacific Journal of Tropical Biomedicine2015，5，3： | 1 |
| 14 | Quantification and assessment of viability of Crytococcus neoformans by light cycler amplification of capsule gene mR NA显示文摘 | Muhammad Amjad Najla Kfoury Raymond Cha | 2004 | Journal of Medical Microbiology2004，53，12： | 1 |
| 15 | Effect of post-irradiation ageing on onion seeds显示文摘 | Muhammad Amjad Muhammad Akbar Anjum | 2007 | Acta Physiologiae Plantarum2007，29，1： | 1 |
| 16 | Quality improvement of deep-hole drilling process of AISI D2 显示文摘 | Tauseef Aized Muhammad Amjad | 2013 | 3'he International Journal of Advanced Manufacturing Technology2013，69，912： | 1 |
| 17 | Validity of the patient health questionnaires(phq-2 and phq-9)for screening depression among human immunodeficiency virus patients in Lahore,Pakistan显示文摘BACKGROUND Many human immunodeficiency virus(HIV)infected patients suffer from depression,but a little focus is given to detecting and treating depression in primary health care.Detection of depression can be improved by introducing short,reliable,and valid screening instruments.AIM To determine the psychometric properties of the patient health questionnaire-2(PHQ-2)and patient health questionnaire-9(PHQ-9)for depression screening and diagnosis,and the sensitivity and specificity of the PHQ-2 in HIV infected patients.METHODS A cross-sectional study was conducted on 158 HIV-infected patients aged 18 years and above in Lahore,Pakistan.PHQ-2 was implemented to screen depression.PHQ-9 was implemented to diagnose major depressive disorder as a reference standard.Reliability,Validity tests and receiver operating characteristic curve were computed.RESULTS The Cronbach's alpha of PHQ-2 and PHQ-9 were 0.732 and 0.759,respectively.The study results showed that the score of 2 on PHQ-2 indicates the highest Youden's index of 0.924,with both sensitivity and specificity of 0.96,and the area under the curve for PHQ-2 was 0.98(95%CI:0.953-0.998).CONCLUSION Good psychometric properties for the PHQ-2 and PHQ-9 indicated their significant potential as tools for depression screening and diagnosis in the HIV-infected population. | Khunsa Junaid Iqra Akram Muhammad Daood Amjad Khan | 2022 | World Journal of Virology2022，11，5： | 1 |
| 18 | Effect of grazing systems on range condition in Pabbi Hills Reserve Forest,Kharian,Punjab,Pakistan显示文摘 | Muhammad S H Angus M Amjad A C | 2011 | Chilean Journal of Agricultural Research2011，71，4： | 1 |
| 19 | Design, mechanism, delivery and therapeutics of canonical and Dicer-substrate siRNA显示文摘Upon the discovery of RNA interference(RNAi),canonical small interfering RNA(si RNA) has been recognized to trigger sequence-specific gene silencing. Despite the benefits of si RNAs as potential new drugs,there are obstacles still to be overcome,including off-target effects and immune stimulation. More recently,Dicer substrate si RNA(Dsi RNA) has been introduced as an alternative to si RNA. Similarly,it also is proving to be potent and target-specific,while rendering less immune stimulation. Dsi RNA is 25–30 nucleotides in length,and is further cleaved and processed by the Dicer enzyme. As with si RNA,it is crucial to design and develop a stable,safe,and efficient system for the delivery of Dsi RNA into the cytoplasm of targeted cells. Several polymeric nanoparticle systems have been well established to load Dsi RNA for in vitro and in vivo delivery,thereby overcoming a major hurdle in the therapeutic uses of Dsi RNA. The present review focuses on a comparison of si RNA and Dsi RNA on the basis of their design,mechanism,in vitro and in vivo delivery,and therapeutics. | Maria Abdul Ghafoor Raja Haliza Katas Muhammad Wahab Amjad | 2019 | Asian Journal of Pharmaceutical Sciences2019，14，5： | 1 |
| 20 | Genetic variability predicting breeding potential of upland cotton(Gossypium hirsutum L.)for high temperature tolerance显示文摘Background High temperature stress at peak flowering stage of cotton is a major hindrance for crop potential.This study aimed to increase genetic divergence regarding heat tolerance in newly developed cultivars and hybrids.Fifty cotton genotypes and 40 F1(hybrids)were tested under field conditions following the treatments,viz.,high temperature stress and control at peak flowering stage in August and October under April and June sowing,respectively.Results The mean squares revealed significant differences among genotypes,treatments,genotype×treatment for relative cell injury,chlorophyll contents,canopy temperature,boll retention and seed cotton yield per plant.The genetic diversity among 50 genotypes was analyzed through cluster analysis and heat susceptibility index(HSI).The heat tolerant genotypes including FH-Noor,NIAB-545,FH-466,FH-Lalazar,FH-458,NIAB-878,IR-NIBGE-8,Weal-AGShahkar,and heat sensitive,i.e.,CIM-602,Silky-3,FH-326,SLH-12 and FH-442 were hybridized in line×tester fashion to produce F1 populations.The breeding materials’populations(40 F1)revealed higher specific combining ability variances along with dominance variances,decided the non-additive type gene action for all the traits.The best general combining ability effects for most of the traits were displayed by the lines,i.e.,FH-Lalazar,NIAB-878 along with testers FH-326 and Silky-3.Specific combining ability effects and better-parent heterosis were showed by the crosses,viz.,FH-Lalazar×Silky-3,FH-Lalazar×FH-326,NIAB-878×Silky-3,and NIAB-878×FH-326 for seed cotton yield and yield contributing traits under high temperature stress.Conclusion Heterosis breeding should be carried out in the presence of non-additive type gene action for all the studied traits.The best combiner parents with better-parent heterosis may be used in crossing program to develop high yielding cultivars,and hybrids for high temperature stress tolerance. | FAROOQ Amjad SHAKEEL Amir SAEED Asif FAROOQ Jehanzeb RIZWAN Muhammad CHATTHA Waqas Shafqat SARWAR Ghulam RAMZAN Yasir | 2023 | Journal of Cotton Research2023，6，2： | 1 |
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