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Toxic hexavalent chromium reduction by Bacillus pumilis,Cellulosimicrobium cellulans and Exiguobacterium

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Chinese Journal of Oceanology and Limnology 2015年第3期33卷 585-589页

作者： Fatima REHMAN muhammad faisal Department of Microbiology and Molecular Genetics University of the PunjabQuaid-e-Azam Campus

Three bacterial strains Bacillus pumilis, Cellulosimicrobium cellulans and ExtguoOactertum were investigated when grown in Luria-Bertani （LB） medium at 500 μg/mL Cr（VI）. The hexavalent chromium reduction was measured by growing the strains in DeLeo and Ehrlich （1994） medium at 200 and 400 μg/mL K2CrO4. The optimal Cr （VI） reduction by strains B. pumilis, Exigubacterium and C. cellulans was 51%, 39%, and 41%, respectively, at an initial KzCrO4 concentration of 200 ~tg/mL at pH 3 and temperature 37℃. At an initial chromate concentration of 400 gg/mL, the Cr（VI） reduction by strains B. purnilis, Exigubacterium and C. cellulans was 24%, 19%, and 18%, respectively at pH 3 at 37℃ after 24 h. These strains have ability to reduce toxic hexavalent chromium to the less mobile trivalent chromium at a wide range of different environmental conditions and can be useful for the treatment of contaminated wastewater and soils.

关键词： chromium bioremediation heavy metals Bacilluspumilis Exiguobacterium Cellulosimicrobium cellulans

COLONIZATION OF VIGNA RADIATA ROOTS BY CHROMIUM RESISTANT BACTERIAL STRAINS OF OCHROBACTRUM INTERMEDIUM,BACILLUS CEREUS AND BREVIBACTERIUM SP.

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应用与环境生物学报 2005年第5期11卷 528-530页

作者： muhammad faisal SHAHIDA Hasnain Department of Botany University of the Punjab Quaid-e-Azam Campus Lahore-54590PakistanDepartment of BotanyUniversity of the Punjab Quaid-e-Azam Campus Lahore-54590Pakistan

The present study deals with colonization potential of plant growth promoting bacterial strains (Ochrobactrum intermedium, Bacillus cereus and Brevibacterium sp.) on Vigna radiata roots. The roots were heavily colonized with O. intermedium and B. cereus as compared to Brevibacterium sp. O. intermedium mainly colonized rhizoplane while B. cereus occurred both on the rhizoplane and near root zone. O. intermedium and B. cereus were found to be present both on the rhizoplane and near root zone, while Brevibacterium only in the rhizosphere in the form of groups. The cells of B. cereus were found more in the sites where root exudates were existed. From the above results it was observed that the number of O. intermedium cells were large at root exudate site. Fig 2, Tab 1, Ref

关键词：豇豆辐射动物铬元素细菌感染仙人掌环境生物学

Reservoir characteristics of Datta Formation (Early Jurassic), Marwat-Khisor Ranges, sub-Himalayas, Pakistan

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Petroleum Science 2023年第4期20卷 2026-2044页

作者： muhammad Tariq muhammad Kashif Noor Ahmed Zaheen Ullah Jose Nicanor Mendez muhammad Armaghan faisal Miraj Department of Earth Sciences University of SargodhaSargodha40100Pakistan Department of Geosciences University of BaltistanSkarduPakistan School of Geosciences China University of PetroleumQingdao266580China Institute of Geology University of the PunjabLahorePakistan

The present work has been accomplished to carry out a detailed study of the characteristics of the Early Jurassic Datta Formation of Trans-Indus Ranges, Pakistan. The discovery of Saib well-1 (Gas and condensate discovery from Jurassic limestone) in the study basin takes an active interest in carrying out extensive exploration activities in the same basin. Jurassic rocks especially Datta Sandstone and Samana Suk Limestone are acting as good reservoirs. The study unit consists of variegated sandstone interbedded with siltstone, carbonaceous clay, and shale and coal stringer. For the current work, two stratigraphic sections (Pezu and Abbo Wanda) have been measured. To examine its sedimentology, depositional environment, diagenetic settings, and reservoir characteristics, a detailed study was conducted and various laboratory techniques have been utilized. About 95 rock samples from the bottom to the top of both sections were collected, and 50 rock samples have been selected for thin section analysis and were examined under a polarizing microscope to show their mineralogical composition, diagenesis, and their reservoir characteristics. XRD (X-ray diffraction), Cathodoluminescence (CL), SEM (Scanning electron microscope) with EDS (Energy-dispersive spectroscope), and Core plug porosity and permeability analysis have been used to interpret its chemical and mineralogical composition and its reservoir characteristics, respectively. Based on field observations and thin section analysis, four depositional facies and six lithofacies have been established. The sedimentary structures, depositional facies, and lithofacies indicate that Datta Formation was deposited in a deltaic environment. Compactions, cementation, fracturing and dissolution can greatly affect the quality of reservoir rock. Based on thin section and SEM analysis, large numbers of primary pores, fracture and secondary pores were observed and connectivity between the pores is good, and at some places, these pores

关键词： Reservoir characteristics Jurassic Datta Formation Porosity.permeability Sandstone

Klippel-Feil syndrome

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中国现代神经疾病杂志 2013年第12期13卷 1049-1050页

作者： muhammad faisal Khilji Emergency Medicine Sultan Qaboos University HospitalMuscatSultanate of Oman

男性患者,33岁。主因交通事故后右肩、左前臂疼痛伴颈后触痛入院。颈椎X线检查可见C4~5椎体融合及其椎弓根融合。临床诊断:Klippel Feil综合征。未予治疗,建议患者避免颈部损伤,如出现上肢感觉异常或感觉缺失,立即复诊。

关键词：克利佩尔费尔综合征颈椎 X线病例报告

Metric Basis of Four-Dimensional Klein Bottle

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Computer Modeling in Engineering & Sciences 2023年第9期136卷 3011-3024页

作者： Ali N.A.Koam Ali Ahmad Maryam Salem Alatawi muhammad Azeem muhammad faisal Nadeem Department of Mathematics College of SciencesNew CampusJazan UniversityJazanSaudi Arabia College of Computer Science&Information Technology Jazan UniversityJazanSaudi Arabia Department of Mathematics Faculty of SciencesUniversity of TabukTabukSaudi Arabia Department of Mathematics Riphah Institute of Computing and Applied SciencesRiphah International UniversityLahorePakistan Department of Mathematics COMSATS University IslamabadLahore CampusLahorePakistan

The Metric of a graph plays an essential role in the arrangement of different dimensional structures and finding their basis in various *** metric dimension of a graph is the selection of the minimum possible number of vertices so that each vertex of the graph is distinctively defined by its vector of distances to the set of selected *** set of selected vertices is known as the metric basis of a *** applied mathematics or computer science,the topic of metric basis is considered as locating number or locating set,and it has applications in robot navigation and finding a beacon set of a computer *** to the vast applications of this concept in computer science,optimization problems,and also in chemistry enormous research has been *** extend this research to a four-dimensional structure,we studied the metric basis of the Klein bottle and proved that the Klein bottle has a constant metric dimension for the variation of all its *** the metric basis is variying in 3 and 4 values when the values of its parameter change,it remains constant and unchanged concerning its order or number of *** methodology of determining the metric basis or locating set is based on the distances of a ***,we proved the main theorems in distance forms.

关键词： Klein bottle metric basis resolving set metric dimension

Deep eutectic ionic liquids based on DABCO-derived quaternary ammonium salts: A promising reaction medium in gaining access to terpyridines

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Frontiers of Chemical Science and Engineering 2019年第3期13卷 586-598页

作者： muhammad faisal Azeem Haider Quret ul Aein Aamer Saeed Fayaz Ali Larik Department of Chemistry Quaid-I-Azam UniversityIslamabadPakistan

Owing to the directional H-bonding,coordination and π-stacking abilities,terpyridines have been widely used as supramolecular tectons in molecular architectures,skeletons in molecular devices and metallopolymers,and are gaining importance in medicinal *** this paper,we have synthesized,characterized and applied deep eutectic ionic liquids (DEILs) based on 1,4-diazabicyclo[2.2.2]octane;triethylenediamine (DABCO)-derived quatemary ammonium salts for the preparation *** DEILs were synthesized through N-alkylation of DABCO with haloalkanes (1-bromopentane or 1-bromoheptane) followed by mixing and heating with methanol or polyethylene glycol as a hydrogen bond *** synthesized DEILs were structurally characterized by IR and *** formation of deep eutectic solvent was confirmed by freezing point depression,it composition was investigated through phase diagram,and its thermal stability was determined through differential scanning calorimetry,derivative thermogravimetry and thermal gravimetric analysis ***,these DEILs were investigated for their effectiveness towards synthesis of 2,2':6',2"-terpyridine,3,2':6',3"-terpyridineand 4,2':6',4"-terpyridine derivatives through Kr(o)hnke *** results show that these three types ofterpyridines can be obtained in reasonable yields (80%-97%) by the one-pot reaction of 2-,3-or 4-acetylpyridine with a variety of aromatic aldehydes in the presence of DEIL as a reaction medium,sodium hydroxide as a base and ammonium acetate as a cyclizing *** methodology is highly efficient and cost-effective for synthesis of symmetrical as well as unsymmetrical ***,these DEILs can be reused several times without an obvious loss of activity and are non-toxic,low-volatile,biodegradable and highly thermally ***,these DEILs as a non-conventional reaction medium for the synthesis of terpyridines provides appealing opportunities to be investigated in the domain of gr

关键词： terpyridine deep eutectic solvent ionic liquid Krohnke reaction DABCO

Factors influencing hybrid maize farmers' risk attitudes and their perceptions in Punjab Province,Pakistan

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Journal of Integrative Agriculture 2018年第6期17卷 1454-1462页

作者： Shoaib Akhtar LI Gu-cheng Raza Ullah Adnan Nazir muhammad Amjed Iqbal muhammad Haseeb Raza Nadeem Iqbal muhammad faisal College of Economics & Management Huazhong Agricultural University Institute of Agricultural and Resource Economics University of Agriculture Faisalabad The Management School Lancaster University

Hybrid maize farmers have to face diverse kinds of climate, biological, price and financial risks. Farmers＇ risk perceptions and risk attitudes are essential elements influencing farm operations and management decisions. However, this important issue has been overlooked in the contemporary studies and therefore there is a dearth of literature on this important issue. The present research is therefore, an attempt to fill this gap. This study aims to quantify hybrid maize farmers＇ perceptions of disastrous risks, their attitudes towards risk and to explore the impacts of various farm and farm household factors on farmers＇ risk attitudes and risk perceptions. The present study is conducted in four hybrid maize growing districts of Punjab Province, Pakistan, using cross-sectional data of 400 hybrid maize farmers. Risk matrix and equally likely certainty equivalent （ELCE） method are used to rank farmers＇ perceptions of four catastrophic risk sources including climate, biological, price and financial risks and to investigate farmers＇ risk aversion attitudes, respectively. Furthermore, probit regression is used to analyze the determinants affecting farmers＇ risk attitudes and risk perceptions. The results of the study showed that majority of farmers are risk averse in nature and perceive price, biological and climate to be potential sources of risks to their farm enterprise. In addition, analysis divulges that distance from farm to main market, off-farm income, location dummies for Sahiwal and Okara, age, maize farming experience, access to extension agent, significantly （either negatively or positively） influence farmers＇ risk attitudes and risk perceptions. The study delivers valuable insights for farmers, agricultural insurance sector, extension services researchers and agricultural policy makers about the local understanding of risks to hybrid maize crop in developing countries, like Pakistan, and have implications for research on farmers＇ adaptation to exposed risks.

关键词： risk perceptions risk attitude hybrid maize determinants Punjab Pakistan

Study on Marketing Strategy of Gloria Jean’s Coffee in Pakistan

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Study on Marketing Strategy of Gloria Jean’s Coffee in Paki...

作者： ATTA muhammad faisal 河南财经政法大学

学位级别：硕士

就咖啡而言,巴基斯坦的Gloria Jean’s是一个非常有名的品牌。巴基斯坦人是茶爱好者,但在Gloria Jean’s被引入巴基斯坦之后。它已成为许多人生活的一部分。Gloria Jean’s改变了巴基斯坦的咖啡潮流,当地人喜欢享受Gloria Jeans带来的... 详细信息

就咖啡而言,巴基斯坦的Gloria Jean’s是一个非常有名的品牌。巴基斯坦人是茶爱好者,但在Gloria Jean’s被引入巴基斯坦之后。它已成为许多人生活的一部分。Gloria Jean’s改变了巴基斯坦的咖啡潮流,当地人喜欢享受Gloria Jeans带来的不同风味和口味的咖啡。Gloria jean正在制定许多商业策略来使他们的业务取得成功。业务营销在拓展业务或营销能力低下时非常重要。营销策略在业务发展中起着至关重要的作用。Gloria Jean的咖啡是全球领先的咖啡连锁店之一。本文对Gloria Jean等咖啡连锁店的所有经营策略进行了分析。GJC改变了咖啡的游戏规则。Gloria Jean’s提供的所有口味都在其营销过程中发挥着至关重要的作用。Gloria jean的分店遍布巴基斯坦各大城市,从一开始就是一个国际品牌。人们喜欢去品牌竞争他们的需求,无论是衣服还是食物。这项研究将帮助其他企业在开展任何业务之前制定业务战略。尤其是咖啡品牌可以关注这项研究。大多数消费者每天都喝咖啡。天气寒冷的国家咖啡消费量很大。然而,巴基斯坦并非如此。Gloria Jean的营销策略在巴基斯坦并不达标,因为它只针对精英阶层社区;特别是在Covid-19大流行出现之后,该品牌面临着销售和业务增长的减少。因此,探索和分析Gloria Jean Coffee的营销策略至关重要。为了实现这些目标,本文采用混合方法研究,其中使用二手和主要数据进行本研究。主要数据是从生活在巴基斯坦大城市(包括拉合尔、伊斯兰堡和木尔坦)的咖啡消费者那里收集的。二手数据是从不同的报告中收集的,包括处理品牌营销策略的政府和私人文件。此外,以前的研究也被用来丰富讨论。在这项研究中,通过从在线资源收集数据、通过PEST和环境分析来使用混合方法,并讨论了来自Gloria Jean’s在巴基斯坦和世界其他地区的网络营销策略的所有其他信息和数据.本研究采用STP理论分析Gloria Jean’s Coffee的营销策略。细分、定位和定位市场有助于制定战略,使业务能够发展壮大。细分市场有助于专注于市场的每个部分。定位可以帮助定位客户的年龄、性别、偏好。定位可以帮助企业在最佳市场区域稳定其特许经营权。这导致了组织的进步和利润。在此之前,人们对健康和咖啡存在许多误解,这可能会导致人们混淆咖啡消费是否可以作为合理、调整饮食习惯的一部分而感到高兴。一些群体比其他群体更容易受到影响。这种波动的一部分是由于阻力,但有迹象表明它也可能具有遗传前提。另一个令人着迷的现实是,女性和男性对咖啡的反应各不相同,而这些区别可能会受到类固醇化学物质的变化的影响。详细阐述了针对该品牌的推荐营销策略。多样化的系统在他们的开发中被广泛使用。无论如何,随着咖啡业务的不断变化和市场漂移的不断变化,GJC应该重新审视并对其程序做出一些改变,以适应预期的市场。因此,巩固局势以获得严重优势至关重要。作为一家希望成功协调并在当地做出响应的公司,GJC高管可能会利用这些技术来加强他们的地位,包括重新考虑营销策略、调整广告、增加期望和提高消费者的意识。

关键词：混合方法(MM) Gloria jean的咖啡营销策略

Research on Control Techniques for An Electrolytic Capacitor Less IPMSM Drive

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Research on Control Techniques for An Electrolytic Capacitor...

作者： muhammad faisal Khan 上海交通大学

学位级别：硕士

如今,使用小型薄膜直流链路电容器代替大型电解电容器,以提高IPMSM驱动器中逆变器的可靠性和寿命。然而,由于直流链路电容器的容量显着降低,其中存储的能量很难使直流链路电压保持恒定。结果,通常直流链路电压随输入电网电压的两倍频率... 详细信息

如今,使用小型薄膜直流链路电容器代替大型电解电容器,以提高IPMSM驱动器中逆变器的可靠性和寿命。然而,由于直流链路电容器的容量显着降低,其中存储的能量很难使直流链路电压保持恒定。结果,通常直流链路电压随输入电网电压的两倍频率而波动。针对这个问题研究人员进行了广泛的研究来调节这些直流链路电压振荡,其中大多数拓扑为标准六开关三相逆变器,用于IPMSM的电力驱动。此外,在该标准逆变器中还没有考虑电动机速度瞬变和负载变化对DC链路电压振荡的影响,其中大多数输入电网控制与电动机控制耦合使得控制非常复杂。本文提出了一种由半控整流器供电的低成本四开关三相逆变器（FSTPI）的无电解电容控制方案,该方案不仅可以在恒速下调节直流环节电压振荡,还可以在速度瞬变和输入扭矩变化期间调节直流环节电压振荡。小薄膜电容器吸收的功率通过控制其中的存储能量来调节,其目的是使DC链路电压跟踪其参考值。通过仿真结果验证了所提方法的有效性。观察到输入电网电流的谐波符合IEC 61000-3-2标准.

关键词：内置永磁同步电动机预测控制无电解电容逆变器 MTPA