International Journal of Scientific Research in Knowledge最新文献_第5页

Synthesis and Evaluation Catalytic Efficiency of Perovskite-Type Oxide Nanopowders in Removal of Bromocresol Purple from Aqueous Solution 钙钛矿型氧化物纳米粉体的合成及其对溴甲酚紫色脱除的催化效果评价

International Journal of Scientific Research in Knowledge Pub Date : 2014-07-01 DOI: 10.12983/IJSRK-2014-P0340-0351

H. Tavakkoli, A. Ghaemi, Mastaneh Mostofizadeh

{"title":"Synthesis and Evaluation Catalytic Efficiency of Perovskite-Type Oxide Nanopowders in Removal of Bromocresol Purple from Aqueous Solution","authors":"H. Tavakkoli, A. Ghaemi, Mastaneh Mostofizadeh","doi":"10.12983/IJSRK-2014-P0340-0351","DOIUrl":"https://doi.org/10.12983/IJSRK-2014-P0340-0351","url":null,"abstract":"A1-xAxBO3 belongs to the perovskite oxides of the ABO3 structure. In this study, nanoparticles of La0.5Ca0.5FeO3 were fabricated by sol-gel citrate technique. A series of common analytical techniques were used to characterize the crystallinity, morphology, specific surface area, and grain size of the nanopowders. These properties were characterised by means of XRD, SEM, EDX and FTIR. The calculated particles size using the Scherrer's formula was about 20 nm. Moreover, the family of perovskite-type oxides could be considered as an adsorbent/catalyst material for the removal of dyes. This study has also investigated the efficiency of La0.5Ca0.5FeO3, as an adsorbent for removal of dye (Bromocresol Purple (BP)), from an aqueous solution. The adsorption studies were carried out at different pH values, various adsorbent dosages and contact time in a batch experiments. The kinetic studies indicate that the removal process obeys the Pseudo-first-order kinetic equation. Also, the isotherm evaluations reveal that the adsorption of BP by the nanoparticles follows the Langmuir model. In addition, this nanoparticle with good specific affinity towards dye molecules was a promising adsorbent for dye removal from natural water.","PeriodicalId":14310,"journal":{"name":"International Journal of Scientific Research in Knowledge","volume":"1 1","pages":"340-351"},"PeriodicalIF":0.0,"publicationDate":"2014-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82596547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Treatability Study of Partially Stabilized Leachate by Composite Coagulant (Prehydrolyzed Iron and Tapioca Flour) 复合混凝剂(预水解铁和木薯粉)处理部分稳定渗滤液的研究

International Journal of Scientific Research in Knowledge Pub Date : 2014-07-01 DOI: 10.12983/IJSRK-2014-P0313-0319

N. M. Zin, H. A. Aziz, M. N. Adlan, A. Ariffin, M. Yusoff, I. Dahlan

{"title":"Treatability Study of Partially Stabilized Leachate by Composite Coagulant (Prehydrolyzed Iron and Tapioca Flour)","authors":"N. M. Zin, H. A. Aziz, M. N. Adlan, A. Ariffin, M. Yusoff, I. Dahlan","doi":"10.12983/IJSRK-2014-P0313-0319","DOIUrl":"https://doi.org/10.12983/IJSRK-2014-P0313-0319","url":null,"abstract":"s. Treatment of leachate before discharge is crucial to ensure the safety of the environment. Application of coagulation-flocculation in reducing pollutant from leachate was proven to be effective. However the use of chemical coagulant will indirectly affect the health of living organisms. To reduce the affect, substitution of the chemical coagulant with natural material can be used. Natural coagulant on leachate treatment was not as effective as chemical coagulant. However, the benefits of natural polymer as coagulants aids had been proven previously. Combination of chemical and natural coagulant as composite coagulant is able to simplify the process and offers many benefits. The aim of this study was to investigate the applicability of composite coagulant made from combination of prehydrolyzed iron (PHI) and tapioca flour (TF) on partially stabilized leachate and was evaluated through percentage removals of suspended solids (SS), colour, chemical oxygen demand (COD) and ammonia. A series of coagulation-flocculation jar test were carried out by considering the effect of dose and pH. Results indicated that at pH 5 and dose 0.2 g/L Fe, the percentage removals of SS, colour, COD and ammonia were 98%, 96%, 60% and 11%, respectively. The results demonstrated that PHITF can be a potential coagulant for the treatment of partially stabilized leachate.","PeriodicalId":14310,"journal":{"name":"International Journal of Scientific Research in Knowledge","volume":"36 1","pages":"313-319"},"PeriodicalIF":0.0,"publicationDate":"2014-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75222522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 16

Status of Exposure of Bio-Systems to Restricted Aluminium Phosphide Pesticide in Kano State, Nigeria 尼日利亚卡诺州生物系统暴露于限用磷化铝农药的状况

International Journal of Scientific Research in Knowledge Pub Date : 2014-07-01 DOI: 10.12983/IJSRK-2014-P0306-0312

Adejumo Isaac Oluseun, O. A. Durojaiye, Adedeji Israel Ajibade, O. S. Idowu

{"title":"Status of Exposure of Bio-Systems to Restricted Aluminium Phosphide Pesticide in Kano State, Nigeria","authors":"Adejumo Isaac Oluseun, O. A. Durojaiye, Adedeji Israel Ajibade, O. S. Idowu","doi":"10.12983/IJSRK-2014-P0306-0312","DOIUrl":"https://doi.org/10.12983/IJSRK-2014-P0306-0312","url":null,"abstract":"Insect pests are one of the major organisms that are responsible for reduction in quality, germination potential and quantity of maize grains as well as seeds in storage. The aim of this study was to assess the types, sources of chemicals used to preserve maize in Nigeria as well as to ascertain the technical know-how of handling these chemicals among maize merchants. The study was conducted in Kano State of Nigeria. Four local government areas which are Kura, Rogo, Garun-Malan, and Rano were selected at random from the state and from the each local government areas, two villages were selected at random. Fifty respondents were chosen at random from the two villages to make a total of 200 respondents in all. Information on the most commonly used maize preservative chemicals were obtained through structured questionnaires. The result of the survey indicated that the mean age ranged between 46-49%, modal age (38-56%), respondents with no formal education (19-40%), those with primary school education, quaranic education, secondary school and tertiary education ranged between 37-42%, 013%, 7-16%, and 10-20% respectively. Majority of the respondents are male (77-88%). The most commonly used maize storage pesticide was aluminium phosphide (42-52%). Lack of formal education among maize farmers/merchants is majorly responsible for misuse of pesticides in the study areas.","PeriodicalId":14310,"journal":{"name":"International Journal of Scientific Research in Knowledge","volume":"1 1","pages":"306-312"},"PeriodicalIF":0.0,"publicationDate":"2014-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81371083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Do Metaphysical Beliefs Manipulate Moral Competency? A Study in the Context of Cultural Diversities, Involving Global Population 形而上学的信仰会操纵道德能力吗?涉及全球人口的文化多样性研究

International Journal of Scientific Research in Knowledge Pub Date : 2014-06-23 DOI: 10.12983/IJSRK-2014-P0328-0339

Bipin P. Varghese, S. Raj

引用次数: 1

Effects of Poultry Manure and NPK Fertilizer on Growth and Yield of Garden Eggs (Solanum Melongena) in a Sandy Soil in Ghana 家禽肥和氮磷钾肥对加纳沙地花园茄生长和产量的影响

International Journal of Scientific Research in Knowledge Pub Date : 2014-06-01 DOI: 10.12983/IJSRK-2014-P0257-0264

A. A. Khalid, H. O. Tuffour, M. Bonsu, T. Adjei-Gyapong, A. Abubakar, I. Boateng, Caleb Melenya, Pearl Kpotor

引用次数: 11

Biomonitoring of Heavy Metal Pollution at Mount Abu (Rajasthan, India) using Riccia Billardieri Mont. & Nees Ex Gottsche, Lindenb. & Nees (Bryophyta: Hepaticae) 利用Riccia Billardieri Mont对印度拉贾斯坦邦阿布山重金属污染进行生物监测。& Nees Ex Gottsche, Lindenb。苔藓植物:肝门

International Journal of Scientific Research in Knowledge Pub Date : 2014-06-01 DOI: 10.12983/IJSRK-2014-P0277-0284

A. Alam, S. Vats, V. Sharma

引用次数: 1

Assessing the Impact of Various Modes of Compaction on Tensile Property and Temperature Susceptibility of Asphalt Concrete 不同压实方式对沥青混凝土拉伸性能和温度敏感性影响的评估

International Journal of Scientific Research in Knowledge Pub Date : 2014-06-01 DOI: 10.12983/IJSRK-2014-P0297-0305

S. Sarsam, M. Al-Obaidi

{"title":"Assessing the Impact of Various Modes of Compaction on Tensile Property and Temperature Susceptibility of Asphalt Concrete","authors":"S. Sarsam, M. Al-Obaidi","doi":"10.12983/IJSRK-2014-P0297-0305","DOIUrl":"https://doi.org/10.12983/IJSRK-2014-P0297-0305","url":null,"abstract":"Compaction has a significant influence on the performance of asphalt mixtures. Insufficient compaction leads to premature permanent deformation, excessive aging, and moisture damage. The optimum asphalt content was 4.7 % using Marshall Compaction method. Bulk density of (2.351) gm/cc was obtained at OAC with 75 blows of Marshall compactive effort as a benchmark. Same density was achieved using the other two techniques, Gyratory and Roller compactive efforts. Results indicate that (75) blows of Marshall Compaction, are equivalent to (148) gyrations in Gyratory Compactor with pressure of (600) KPa and angle of gyration of (1.25°), and they are also equivalent to (56) cycles in Roller Compactor at load (5) KN and vibration with air supply of (10) bar, to obtain the same density. A total of 162 Marshal Size specimens were prepared, using Marshall, and Gyratory Compaction techniques, based on OAC of 4.7 % with additional asphalt contents of 0.5% above and below the optimum value. Twelve slabs of (40 x 30 x 6.35) cm were constructed using Roller Compactor and (6) core specimens were obtained for each slab. All specimens were subjected to the Indirect tensile strength (ITS) at 25oC, 40oC, and 60oC, temperature susceptibility (TS), and tensile strength ratio (TSR) test for the three methods of compaction. The main objective of this study is to evaluate impact on the tensile and temperature susceptibility of compacted hot mix asphalt concrete (HMA) when using three methods of compaction to achieve same density.","PeriodicalId":14310,"journal":{"name":"International Journal of Scientific Research in Knowledge","volume":"22 1","pages":"297-305"},"PeriodicalIF":0.0,"publicationDate":"2014-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78587967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Relationship between Emotional Exhaustion and Deviant Behaviors: Moderating Role of Big Five Personality Traits 情绪耗竭与偏差行为的关系:大五人格特质的调节作用

International Journal of Scientific Research in Knowledge Pub Date : 2014-06-01 DOI: 10.12983/IJSRK-2014-P0285-0296

M. Golparvar, Safoura Dehghan, A. Mehdad

{"title":"Relationship between Emotional Exhaustion and Deviant Behaviors: Moderating Role of Big Five Personality Traits","authors":"M. Golparvar, Safoura Dehghan, A. Mehdad","doi":"10.12983/IJSRK-2014-P0285-0296","DOIUrl":"https://doi.org/10.12983/IJSRK-2014-P0285-0296","url":null,"abstract":"Personality traits are very important factors for research and theory and also for understanding various employees' behavior at work settings. The aim of the current inquiry was to investigate the relationships between emotional exhaustion and deviant behaviors with consider moderating effects of big five personality factors among employees of an public sector organization in Tehran, Iran. Using a simple random sampling method, a sample of two hundred and sixty five employees responded the emotional exhaustion, deviant behaviors, and big five personality traits questionnaires. The results revealed that extroversion, agreeableness and neuroticism moderate the relationship between emotional exhaustion and deviant behaviors. That is, in high extroversion and agreeableness, emotional exhaustion not significantly related to deviant behaviors, while in high neuroticism, emotional exhaustion positively and significantly related to deviant behaviors. Result of the current investigation showed that agreeableness and extroversion are two protective personality traits, and neuroticism is a personality risk factor in the relationship between emotional exhaustion and deviant behaviors.","PeriodicalId":14310,"journal":{"name":"International Journal of Scientific Research in Knowledge","volume":"23 1","pages":"285-296"},"PeriodicalIF":0.0,"publicationDate":"2014-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88265017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Anti-Asthmatic and Cardioprotective Efficacy of Curcumin-A Review 姜黄素a的抗哮喘和心脏保护作用综述

International Journal of Scientific Research in Knowledge Pub Date : 2014-05-01 DOI: 10.12983/IJSRK-2014-P0215-0223

M. Shahid, S. Khair-ul-Bariyah

{"title":"Anti-Asthmatic and Cardioprotective Efficacy of Curcumin-A Review","authors":"M. Shahid, S. Khair-ul-Bariyah","doi":"10.12983/IJSRK-2014-P0215-0223","DOIUrl":"https://doi.org/10.12983/IJSRK-2014-P0215-0223","url":null,"abstract":"Curcumin is a natural yellow pigment of turmeric. It is used for the treatment of diseases like Alzheimer's disease, chronic obstructive pulmonary disease, asthma, neuropathic pain, psoriasis, cancer and atherosclerosis. The present review aims to encompass the studies of curcumin as anti-asthmatic and cardioprotective. It has shown antiallergic properties by inhibiting histamine release from mast cells. It has been evidenced to have anti-inflammatory properties through inhibition of the NF-κB pathway. By its good radical scavenging activity, it has proved to be potent in treating cardiovascular diseases. However, its combination with other asthma and cardio medicines needs to be evaluated, especially; combination of herbal medicines or curcumin along with synthetic drugs can lead to positive outcomes. Moreover, derivatives of the drug can also show some promising results and more derivatives, like CNB001, must be synthesized and investigated to control airway epithelial cell function and asthma. Only little work has been done so far showing its effects on the pulmonary functions of smokers, so this area needs to be explored by further clinical trials.","PeriodicalId":14310,"journal":{"name":"International Journal of Scientific Research in Knowledge","volume":"106 1","pages":"215-223"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79288159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Soil Organic Carbon: Relating the Walkley-Black Wet Oxidation Method to Loss on Ignition and Clay Content 土壤有机碳:Walkley-Black湿氧化法与着火损失和粘土含量的关系

International Journal of Scientific Research in Knowledge Pub Date : 2014-05-01 DOI: 10.12983/IJSRK-2014-P0249-0256

H. O. Tuffour, Israel Boateng Yeboah, M. Bonsu, T. Adjei-Gyapong, A. Abubakar, Caleb Melenya, Pearl Kpotor

{"title":"Soil Organic Carbon: Relating the Walkley-Black Wet Oxidation Method to Loss on Ignition and Clay Content","authors":"H. O. Tuffour, Israel Boateng Yeboah, M. Bonsu, T. Adjei-Gyapong, A. Abubakar, Caleb Melenya, Pearl Kpotor","doi":"10.12983/IJSRK-2014-P0249-0256","DOIUrl":"https://doi.org/10.12983/IJSRK-2014-P0249-0256","url":null,"abstract":"Accurate estimation of soil organic carbon (SOC) is needed in many fields of science including ecology, soil science and global climate change. Loss on ignition method (LOI) of estimating SOC has been proposed as rapid, accurate and cheap method but it has some limitations. Walkley-Black method is also widely used. For this study, 12 soil samples from 0-15 cm depth were collected from four sites of the Crop Plantation Section of the Department of Crop and Soil Sciences, KNUST. The amount of SOC (%) estimated by LOI and W-B methods, and clay content were used to develop simple and multiple linear regression equations to describe their relationships. The highest estimate of SOC (3.28%) was produced by Loss on ignition method, whereas W-B gave lower estimates with 1.35% being the highest produced by this method. The coefficient of determination, R 2 , for the equations ranged from 0.35 to 0.84. Very weak relationship was observed between LOI and W-B as evidenced by R 2 value of 0.35. The clay content had a strong positive correlation (r = 0.70, p < 0.001) with LOI and gave R 2","PeriodicalId":14310,"journal":{"name":"International Journal of Scientific Research in Knowledge","volume":"25 1","pages":"249-256"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82904404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5