Wetting kinetics in forced spreading

Under dynamic conditions, the dynamic contact angle (the angle that the liquid makes with the solid) of a liquid on a solid surface varies dramatically with substrate velocity from its equilibrium value. Experimental data of the dynamic contact angles for polydimethylsiloxane (PDMS or silicone oil) under air on a glass substrate coated with teflon, for water under PDMS, for solutions of the polymer polyethylene oxide (PEO) under air, for solutions of PEO under PDMS, were obtained to simulate and understand the systems of brine or brine containing a polymer displacing viscous crude. A variety of solid substrates were used other than above to displace oil with the object that the equilibrium contact angles ~ 90⁰. The method used was that of a plate immersed or withdrawn from a pool of liquid, and the machine (Cahn-Thermo) calculates for us the dynamic advancing and receding contact angles. The dynamic contact angles determine the basic driving forces such as capillary pressures. The data were correlated with a number of available models. In most cases, the models were developed further to fit the requirements of various cases. In general, it is necessary for the model to include fluid flow, interfacial phenomena, and rheology. Photography was used to verify cases of entrainment and instability. One object of the present work was to determine the contribution of the non-Newtonian nature of the PEO solution. For the PEO solution under oil (PDMS) no obvious signs are observed although solutions at high polymer concentrations, that is, high elasticity, show some anomalous effects. However, it is not possible to conclude that shear thinning effects will be absent in all cases since a criterion is established here that shows under what condition the above may not hold --Abstract, page iv

THE ACHIEVEMENT OF ENGLISH LANGUAGE CURRICULA FOR SECONDARY STAGE FROM THE PERSPECTIVES OF EFL TEACHERS AND SUPERVISORS IN JORDAN

This study aims to investigate whether or not the goals of English language curricula for secondary stage have been achieved from the perspectives of EFL teachers and supervisors in Jordan. The participants were 101 EFL teachers and 8 supervisors in Al_Karak educational directorates of Education during the first semester 2020/2021. The researchers designed a questionnaire consisting of fifty-nine items in four areas: listening, speaking, reading and writing skills, used to collect the data for this study. The findings of this study showed that English language teachers and supervisors were mostly satisfied with the goals of English language curriculum for secondary stage. The means for all the areas according to English language teachers was 3.31 while the means for all the areas according to English language supervisors was 3.27. This implies that English language teachers and supervisors were satisfied with the goals of English language curriculum for secondary stage

Evaluation Tools of Total Quality Management in Business Organizations

Total quality management (TQM) is a strategic commitment to make quality and customer satisfaction a guiding factor in everything an organization does. TQM, which has preoccupied the attention of organizations since the beginning of the industrial revolution, is based on the participation of all members in an organization to improve processes, products, services, and the culture they work in. This conceptual paper addresses the TQM tools used and discusses cases and issues of TQM’s execution in organizations. Based on previous studies, it was found that unwillingness to implement quality management and level of quality performance will cost organizations billions of dollars. Thus, an organization must instill the TQM concepts and practices into one’s product development process to avoid pitfalls and ensure success during TQM implementation. In general, the organization should sustain management of innovation and change to build competence and competitiveness in this ever-changing environment. Keywords: total quality management, quality performance, customer satisfactio

Word-based encryption algorithm using dictionary indexing with variable encryption key length

This paper proposes a new algorithm for text encryption utilizing English words as a unit of encoding. The algorithm vanishes any feature that could be used to reveal the encrypted text through adopting variable code lengths for the English words, utilizing a variable-length encryption key, applying two-dimensional binary shuffling techniques at the bit level, and utilizing four binary logical operations with randomized shuffling inputs. English words that alphabetically sorted are divided into four lookup tables where each word has assigned an index. The strength of the proposed algorithm concluded from having two major components. Firstly, each lookup table utilizes different index sizes, and all index sizes are not multiples of bytes. Secondly, the shuffling operations are conducted on a two-dimensional binary matrix with variable length. Lastly, the parameters of the shuffling operation are randomized based on a randomly selected encryption key with varying size. Thus, the shuffling operations move adjacent bits away in a randomized fashion. Definitively, the proposed algorithm vanishes any signature or any statistical features of the original message. Moreover, the proposed algorithm reduces the size of the encrypted message as an additive advantage which is achieved through utilizing the smallest possible index size for each lookup table

Selection of Temperature Measuring Sensors Using the Analytic Hierarchy Process

This study presents an analytic hierarchy process (AHP) method to objectively select the best temperature sensor from among different alternative sensors in a certain industrial application. The underlying decision method based on AHP methodology, ranks temperature sensors with different features with a score resulting from the synthesis of relative preferences of each alternative with respect to the others at different levels considering independent evaluation criteria and sub-criteria. At each level, relative preferences of each candidate alternative with respect to the upper immediate level are calculated from pairwise comparisons among the candidate alternative sensors with respect to a selected application. Pair-wise comparison matrices are compiled based on views of experts in this field. Seven alternative sensors were considered: the thermocouple, the thermister, the resistance temperature detector (RTD), the bimetallic strip thermometer, the mercury-in-glass thermometer, the optical disappearing filament pyrometer, and the liquid crystal display semi conductor thermometer (LCD). Three industrial applications were also considered: Automotives, Chemical Processes, and Heating, Ventilating and Air Conditioning. A case study is conducted which involves selecting the best sensor for an automotive catalytic converter. The thermocouple is found to be the most preferred sensor for this application with the largest score of 0.37849, the second ranked sensor is the RTD with a score of 0.34589, and the least preferred sensor is the thermister with a score of 0.27560. To test the robustness of the proposed work, a sensitivity analysis was conducted in which variations in the relative preferences of the alternative sensors against sub-criteria and criteria were employed

A Software Application for the Selection of Temperature Measuring Sensors Using the Analytic Hierarchy Process (AHP)

This study presents a software application that applies the Analytic Hierarchy Process (AHP) to objectively select the best temperature sensors. Three industrial applications and seven sensor alternatives are considered. The developed application performs the selection process in a computerised, easy–to–use graphical user interface. The underlying decision method ranks temperature sensors with scores resulting from the synthesis of relative preferences of each alternative at different levels considering independent evaluation criteria. Pair–wise relative comparison matrices collected from experts are embedded and are retrieved according to user specifications. A case study is conducted which involves selecting the best sensor for an automotive catalytic converter. The thermocouple is found to be the most preferred sensor with the largest score of 0.37849, the second ranked sensor is the RTD with a score of 0.34589, and the least preferred sensor is the thermister with a score of 0.27560. Sensitivity analysis shows that the selection of the best sensor is dependent on the relative weights of the criteria as well as the chosen application. AHP is shown to provide a quantitative evaluation method which is simpler, easier and more organised than subjective opinions

Stability-indicating method for the determination of Rivaroxaban and its degradation products using LC-MS and TLC

A validated stability indicating thin layer chromatographic (TLC) and liquid chromatography coupled with mass spectrometry LC/MS methods were developed to analyse Rivaroxaban and its degradation products. Forced degradation studies under stress conditions were carried out in order to establish its stability profile. Stress conditions recommended by the International Conference on Harmonization (ICH) including oxidative, photolytic, thermal, acidic, and basic hydrolysis were applied. Rivaroxaban found susceptible to acid and base hydrolytic stress conditions. Degradation products were identified isolated and characterized using LC-MS and TLC. Three major degradation products were detected, separated and determined and two of them were further characterized by NMR spectroscopy and FT-IR

EVOLVING ROLE OF CAR T-CELL IN CANCER IMMUNOTHERAPY

Safety profiles of newly developed anti-cancer therapies is the main goal for efficient treatments to improve survival rates. Therefore, continuous efforts carried out to develop a therapeutic strategy with better outcomes. The concept of immune-oncology, which utilizes and enhances the capacity of human immune system was developed as an eventual opportunity to enhance remissions and limit the relaps of the disease. Later progression of cellular immunetherapies involve the introduction of genetically engineered T cells having chimeric antigen receptors (CARs) that embraced an antibody-derived antigen recognition domain connected to an internal T-cell signaling domain, so can recognize their targets with high degree of tumor selectivity. This approach showed vigorous antitumor outcomes and full recovery in end-stage patients suffering from liquid cancers as leukemia and lymphoma. However, still there is a challenge for bringing genetically modified T-cell immunotherapy to many patients with different tumor types including solid tumor. On other hand, studies indicated the potential to broaden T-cell–based therapies and foster for other possible applications beyond oncology as organ transplantation and autoimmunity. Therefore, this review aimed to illustrate the clinical applications, challenges, and approaches for more efficient clinical employment of CAR T cell therapies

Banking Services Transformation and Financial Technology Role

The primary purpose of this paper is to explore and discuss the role of Fintech in the transformation of Malaysian banking services. The research design is qualitative and secondary source analysis is conducted. Secondary data is collected from relevant journal articles, research papers, editorials, websites and official documents. Based on the analysis, it is concluded that different key drivers played an influential role in the progress of the Fintech industry in Malaysia. Financial literacy programs and Malaysia Stack are some notable initiatives that support the Fintech progress in Malaysia. A range of Fintech businesses is operating in Malaysia that are transforming different banking services including payments solutions, lending personal loans, credit cards, personal finance management solutions and one- stop-shop online banking. Underserved populations, flexible regulatory environment and increased level of interest of state authorities are some of the critical aspects for the future progress of Fintech business in Malaysia. The research paper explains the role of Fintech businesses in the Malaysian banking industry. Many have viewed Fintech as a disruptive technology, however, this study highlighted that Malaysian banking services are transformed by Fintech business and there are still opportunities for the progress of the Fintech industry in Malaysia

Think Aloud Protocol in Translating Sheikh Jassim bin Mohammed Al Thani’s Poetry

This study sets out to investigate the usability of Think Aloud Protocol (TAP) – in translating Sheikh Jassim Al Thani’s poetry into English, which is an example of Nabati poetry. The study was conducted on two groups of MA graduates in translation studies: Qataris and non-Qataris. The approach used in this study is process-oriented, and therefore it illuminates the strategies that translators use to overcome challenges during the translation process. The analysis of the translation of the selected expressions is based on Gerloff’s (1986) model of coding translation strategies. Selecting different translation strategies by each group demonstrates the nature of the encountered challenges. These challenges vary, as some are linguistic, while others are cultural. Finally, the study concluded that the employment of TAP in the process of translation is effective, guide translation specialists and help them to overcome any linguistic or cultural problems