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Abdul Ghaffar,Tahir Islam,Tomas Kincl,Abdul Hakeem,Anshuman Sharma 한국마케팅과학회 2023 마케팅과학연구 Vol.33 No.3
This paper aims to examine the impact of service quality and corporate social responsibility (CSR) on brand authenticity and determine the moderating effects of CSR on the relationship between service quality and brand authenticity. Survey data was collected from 472 customers of Karachi, Pakistan’s four major medical diagnostic laboratories, through the convenience sampling technique. The quantitative method was used. To collect information from respondents, a self-administered questionnaire is used. We utilized the partial least squares structural equation modeling (PLS-SEM) technique to analyze data. The results show that CSR, service quality, and brand authenticity are related in medical diagnostic and research laboratories. Research findings indicate that service quality and CSR directly and positively impact brand authenticity. In addition, CSR moderates the effect between service quality and brand authenticity. Managers can see corporate social responsibility as an intangible value that goes along with high-quality services and makes medical diagnostic and research laboratory services more authentic.
Park, Kyeongsoon,Hakeem, Deshmukh Abdul,Cha, Jae Sung The Royal Society of Chemistry 2016 Dalton Transactions Vol.45 No.16
<P>A series of Ca3-xAgxCo4O9+delta (0 <= x <= 0.2) powders is prepared by the Pechini sol-gel method. The effect of dispersants on the size and morphology of the Ca2.9Ag0.1Co4O9+delta powders is investigated. The desired powders are obtained after calcinations of the dried powders at 800 degrees C for 12 h. The structural and morphological properties are studied with the help of XRD patterns, FE-SEM images, FT-IR spectra, Raman spectra, and XPS spectra. It is found that a mixed valence (+ 3 and + 4) of Co exists in a CdI2-type CoO2 layer, while a mixed valence (+ 2, + 3, and + 4) exists in the CoO of a rock salt-type Ca2CoO3 layer. The mixed-valence state in the CoO2 layer can improve the high-temperature thermoelectric properties of Ca3Co4O9 systems.</P>
Makarand Upadhyaya,Abdul Hakeem,Deepa Shewale Chavan KINFORMS 2013 Management Review Vol.8 No.2
This research work aims at exploring factors like servicecape, trust and customers’ preference and the relationship with customer satisfaction and loyalty relationship with customer customer satisfaction and loyalty in the restaurant industry. The Indian restaurants are employed as target samples due to easy access in collecting the data and also due to the fact that these restaurants are a single function activity unlike bit hotels and shopping malls. The servicecape and trust has a position influence on the outcome variable, customers’ preference of restaurants which relies on customers’ own knowledge (CPRRK), as is evident from the fact that majority of customers select restaurants on the basis of their past experience. The questionnaire for the research survey was divided into two parts: a. questions relating to servicecape were designed on the basis of Bitner’s, model and b.for question relating to trust, seven aspects designed by Hess were used. Customers were asked to answer, questions regarding restaurant’s reputation or image caused by the servicecape issues and other aspects relating to trust.
Akeem Yusuf Adesina,Muzafar Hussain,Abbas Saeed Hakeem,Abdul Samad Mohammed,Muhammad Ali Ehsan,Ahmad Sorour 대한금속·재료학회 2022 METALS AND MATERIALS International Vol.28 No.9
This study investigates the influence of heating rate on the tribological and corrosion properties of 52100 bearing steelsamples consolidated via spark plasma sintering. The consolidation was conducted at different heating rates of 50, 100,200, 300, and 400 °C/min and the thermomechanical properties of the resulting samples were characterized. Ball-on-disctribological tests and electrochemical techniques were used to evaluate the wear and corrosion resistance, respectively. The results showed that an increased heating rate positively affects the thermomechanical and tribological properties of52100 bearing steel. The sintered samples exhibited a low coefficient of friction (between 0.4 and 0.56) and a low wear rate(between 1.4 and 1.8 × 10−6 mm3/Nm) at heating rates between 100 and 400 °C/min. Furthermore, the corrosion resistanceof the samples gradually drops above the heating rate of 100 °C/min. The samples can be ranked in the order of decreasingcorrosion resistance thus: 100 > 200 > 300 > 400 > 50 °C/min. The improved corrosion resistance of the sample sintered at100 °C/min can be attributed to its refined crystal size and high density.
Arur Anand,G. Kantharajan,P. Krishnan,K. Abdul Hakeem,K. Sai Santosh,Ch. Srinivasa Rao,Kuldeep K. Lal,S. B. Choudhury,C. Manjulatha,D. E. Babu 대한공간정보학회 2019 Spatial Information Research Vol.27 No.6
Planning aquaculture and fisheries activities in a reservoir requires knowledge of dynamics of water spread. We studied water spread dynamics of three reservoirs in the Godavari river basin, India using multi-temporal satellite imagery for the period 1990–2018 and developed a framework for mapping the spatial extent of water spread area (WSA) having potential for enclosure fish culture. The study showed that WSA of Nizamsagar reservoir in premonsoon season has declined from 108.11 to 99.34 km2 from phase I (1990–2006) to phase II (2007–2018), respectively and a similar trend was seen in Pocharam and Nallavagu reservoirs. For post monsoon seasons of the same time period, an increase in WSA was seen in Nizamsagar (133.75–144.14 km2) and Pocharam reservoirs (14.15-14.67 km2). Based on frequency of water presence during 2007–2018, WSA with potential for cage and pen culture was determined in Nizamsagar (31.04 km2) and Pocharam (2.87 km2) reservoirs. The study showed that both the reservoirs can accommodate maximum allowed number of cages (5000 and 500 cages respectively). We provide a decision matrix for location-specific selection of suitable culture methods and candidate species, which would aid in optimal utilization of the hitherto under-utilized reservoirs, especially in in situ data poor conditions. This study can be scaled up in the entire country with the help of academia/industry to prioritize reservoirs with potential for enclosure fish culture and plan appropriate interventions for reducing their yield gap.
Fuad Habash,Pooja Gurram,Ahmed Almomani,Andres Duarte,Abdul Hakeem,Srikanth Vallurupalli,Sabha Bhatti 한국심초음파학회 2018 Journal of Cardiovascular Imaging (J Cardiovasc Im Vol.26 No.2
BACKGROUND: Patients undergoing liver transplant have worse outcomes in the presence ofpulmonary hypertension. Correlation between echocardiography and catheterization derivedpressures in this population is not well studied. Our study's aim is to show the relationshipbetween pulmonary artery systolic pressure derived from transthoracic echo (ePASP) withpulmonary artery systolic pressure measured during right heart catheterization (cPASP). METHODS: Single center retrospective study, patients being evaluated for liver transplant(n = 31) who had an interpretable Doppler signal for ePASP and had right heart catheterization(RHC) measurements within 3 months constituted the study group. Control group (n = 49)consisted of patients who did not have liver disease. RESULTS: There was modest correlation between ePASP and cPASP (R = 0.58, p < 0.001) in LTcandidates (n = 31) compared with the control group (R = 0.74, p < 0.001, n = 49). The 95%limits of agreement by Bland-Altman analysis ranged from +33.6 mmHg to −21.7 mmHg. Using receiver operating characteristic analysis, ePASP cut-off > 47 mmHg was 59% sensitiveand 78% specific to diagnose pulmonary artery (PA) hypertension (mean PA pressure > 25mmHg) in the LT candidates, while a similar cutoff performed well in the control group(cutoff > 43 mmHg, n = 47, 91% sensitive, 100% specific). CONCLUSIONS: Compared with other disease states, ePASP correlates modestly with cPASPin patients with advanced liver disease. A higher ePASP cutoff should be used to screen forpulmonary hypertension. A multi-center prospective study with simultaneous transthoracicechocardiography and RHC measurements is required to determine the best cut-off in thispopulation.
Lead Sorption by Carbon Nanofibers Grown on Powdered Activated Carbon - Kinetics and Equilibrium
Abdullah Al Mamun,Yehya M. Ahmed,Ma'an Fahmi R. AlKhatib,Ahmad Tariq Jameel,Mohammed Abdul Hakeem Abdul Rahman AlSaadi 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2015 NANO Vol.10 No.2
Carbon nanofibers (CNFs) were synthesized by using a safe and less hazardous method, compared to using floating catalysts in chemical vapor deposition (CVD) process. This process used C2H2 as carbon source and oil palm kernel shell-based powdered activated carbon (PAC) as cheap solid substrate. Use of nickel (Ni2+) impregnated PAC as fixed substrate for the synthesis of CNF is one of the novelties of the research work accomplished by the authors. The PAC–CNFs porous nanocomposite product was used for the sorption of lead ions (Pb2+) from synthetic aqueous solution. Kinetics of Pb2+ adsorption and isotherms were investigated by varying initial concentration of lead and contact time. PAC–CNFs were found to remove Pb2+ better at acidic pH of about 5.5. Langmuir and Freundlich isotherms were applied to the sorption equilibrium data to find the best fitted model. Langmuir isotherm model with R2=0.965 fitted the adsorption data better than the Freundlich isotherm. The kinetic processes of Pb2+ adsorption on CNFs were investigated by applying different kinetic models, namely zero-order, pseudo-first-order and pseudo-second-order. The pseudo-second-order rate equation exhibited the best results with R=0.999, qe=74.79 (mg/g) and K2=0.029 (min·g/mg). The novel nanocomposite product seemed to have the potential to remove Pb2+ ions from aqueous solution.