จำนวน Repository ( 1574 )
การดูดซับสีย้อมเมทิลีนบลูบนถ่านกัมมันต์ที่เตรียมจากกากน้ำตาลโดยวิธีการกระตุ้นด้วยสารเคมีและไมโครเวฟ
This research aims to produce activated carbon from molasses via a chemical activation process with potassium hydroxide (KOH) and a microwave heating process which consumes less energy and provides more rapid and uniform heat distribution than a conventional heating. The obtained activated carbon was then characterized with BET SEM and FTIR. It exhibited a large specific surface area of 1631 m2/g and a total pore volume of 1.124 cm3/g consisting of mesopore and micropore. In addition the active functional groups were also found on the surface of the activated carbon. Thus it was brought for the adsorption test with methylene blue. It was found that the adsorption capacity of the activated carbon increased with time and reached the equilibrium within 8 hours. The adsorption data of the activated carbon were corresponded to Langmuir isotherm with the highest adsorption capacity of 370.37 mg/g. The adsorption kinetic of the activated carbon exhibited pseudo-second order reaction suggesting to the chemisorption phenomenon. From the thermodynamic study it revealed that the adsorption process were endothermic and spontaneous reactions.
การบริหารสินค้าคงคลังด้วยระบบโลจิสติกส์ ที่ส่งผลกระทบต่อผลการดำเนินงานของ องค์กร(BSC)และความยั่งยืนขององค์กรในอุตสาหกรรมชิ้นส่วนยานยนต์
The objectives of this study were to investigate inventory management with logistics systems affecting balanced scorecard (BSC) and to study the balanced scorecard (BSC) affecting organizational sustainability. The population used in this study was under the supervision of the Thai Auto Parts Manufacturers Association. A questionnaire was used as a research instrument for collecting data from accounting executives accounting staff and other related line staff. Data were analyzed using descriptive statistics such as mean standard deviation and percentage and inferential statistics including Pearsons Correlation Coefficient and Multiple Regression Analysis. The major findings indicated that 1) Inventory management with a logistic system positively effected operating results. 2) The performance of the organization had a positive effect on the sustainability of the organization. The study showed that agencies or organizations that rely on inventory storage manage their warehouses better when the logistics system plays a role in managing various systems within the warehouse. Organizations do not have to store excess inventory resulting in liquidity. Reduced Inventory costs also result in lower total costs. The selling price can be set lower than the competitors. Businesses earn more profits which positively affects the balanced scorecard (BSC) in all four organization perspectives. When the balanced scorecard (BSC) continues to improve the organization will grow sustainably.
ความรู้ความเข้าใจ แรงจูงใจและความผูกพันต่อองค์กรที่ส่งผลต่อประสิทธิภาพการปฏิบัติงานของนักบัญชี
The objective of this independent study was to investigate knowledge and understanding motivation and organizational commitment affecting the efficiency in work performance of accountants and to study the motivation in performance that affects the commitment of the accountants’ organization. The Population in the study was 255 accountants working in accounting services firms registered with the Department of Business Development. A questionnaire was used to collect data. Descriptive statistics were used for data analysis i.e. frequency percentage mean standard deviation Pearson’s correlation coefficient and multi regression analysis. The major findings indicated that 1) knowledge understanding and motivation affected the efficiency in work performance of accountants as a whole at the statistical significance level of 0.01. When considering each aspect the study shows that knowledge understanding and motivation affected the efficiency in work performance concerning quality quantity time and expenses at the statistical significance level of 0.01 The organizational commitment affected the efficiency performance in terms of expenses with the statistical significance level of 0.05 and 2) Work motivation positively correlated with the organizational commitment of accountants with statistical significance level of 0.01.
ปัจจัยที่มีอิทธิพลต่อการตัดสินใจซื้อเครื่องใช้ในบ้านผ่าน Application Shopee ของ ผู้บริโภค generation x
The objectives of this research are: (1) to study the demographic factors that influence decision making in buying home appliances through the Shopee application of generation X (2) to study how the marketing mix such as product price place promotion influences the buying decision of home appliances through Shopee application of generation X. The 400 samples were drawn from 10 districts in Ratchaburi province using the convenient sampling method statistics analysis done under 95 percent confidence interval with significant level 0.05. The results show that: (1) demographic factors like gender age and income affected consumer buying. Education and occupation did not affect the consumers’ buying decisions. (2) Product price place promotion affected the buying decisions of home appliances through the Shopee application of generation X in Ratchaburi province. The Regression Analysis using R2 was applied to determine the relationship between marketing mix and problem recognition information findings alternative assessment consumer decision making and reaction after buying. The R2 are 0.62 0.53 0.59 0.58 and 0.62 respectively. The consumer problem recognition and response after buying are higher in the relationship of R2. In conclusion the consumer buying decisions of home appliances through the Shopee application are related to the marketing mix problem recognition and the reaction after buying.
การพัฒนาระบบบริหารงานพัสดุ คณะศิลปศาสตร์ มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร
This research is to develop an internal inventory management system. Faculty of Liberal Arts Rajamangala University of Technology Phra Nakhon To evaluate the results of the use of information systems for managing supplies within the Faculty of Liberal Arts Rajamangala University of Technology Phra Nakhon The data was collected between October 2019 and September 2020 as a survey research using questionnaire tools. It consists of 4 parts: 1) general information of the respondents which is demographic characteristics 2) current condition and needs of the parcel management system. Faculty of Liberal Arts University of Technology Rajamangala University of Technology Phra Nakhon 3) The efficiency of the procurement management system Faculty of Liberal Arts Rajamangala University of Technology Phra Nakhon and 4) satisfaction of the procurement management system. Faculty of Liberal Arts Rajamangala University of Technology Phra Nakhon With the sample groups in this research are Support personnel Under the Faculty of Liberal Arts Rajamangala University of Technology Phra Nakhon comprised of 21 persons. The data analysis used descriptive statistics for demographic characteristics. The study found that Current conditions and procurement development guidelines Faculty of Liberal Arts Rajamangala University of Technology Phra Nakhon Overall and from the bottom to the bottom including parcel payment Parcel picking Accounting for parcel control And material storage respectively efficiency of the parcel management system Faculty of Liberal Arts Rajamangala University of Technology Phra Nakhon Overall and each side Very level When sorting the efficiency of the parcel management system in descending order namely the information security aspect of the system. Aspects to meet the needs of system users Functional aspects according to the system function And the ease of use of the respective system and the users satisfaction with the parcel management system. Faculty of Liberal Arts University of Technology Rajamangala Overall and each side Very level When sorting the users satisfaction with the parcel management system descending namely the aspects of meeting the needs of the system users. Information security in the system Ease of use And functional aspects according to the systems function respectively