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2019

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An Affordable Immunohistochemical Approach To Estimate The Prevalence Of Braf V600e Mutation In Papillary Thyroid Cancer Patients Of King Chulalongkorn Memorial Hospital, Thailand., Sonam Choden Jan 2019

An Affordable Immunohistochemical Approach To Estimate The Prevalence Of Braf V600e Mutation In Papillary Thyroid Cancer Patients Of King Chulalongkorn Memorial Hospital, Thailand., Sonam Choden

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: Papillary thyroid carcinoma (PTC) accounts for the majority of diagnoses of thyroid carcinoma. BRAFV600E mutation is the most common genetic alteration in PTC, which has diagnostic and prognostic significance. The rate of BRAFV600E mutation in PTC from Thailand has not been reported. Our purpose was to estimate the prevalence of BRAF mutation in a large institutional series using an affordable approach, which combined mutation-specific immunohistochemistry (IHC) with VE1 antibody and tissue microarray (TMA). Methods: A total of 476 PTC cases plotted on TMA were employed for determining the mutation status in this study. The cancer tissue of initial 100 …

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Predictive Factors For Invasive Fungal Rhinosinusitis In Diabetic Patients, Thwe Phyo Kan Nyunt Jan 2019

Predictive Factors For Invasive Fungal Rhinosinusitis In Diabetic Patients, Thwe Phyo Kan Nyunt

Chulalongkorn University Theses and Dissertations (Chula ETD)

ภูมิหลัง ผู้ป่วยเบาหวานมีโอกาสที่จะเกิดโรคไซนัสอักสบจากเชื้อราชนิดรุกรานได้ง่ายกว่าผู้ป่วยปกติ ซึ่งอัตราการเสียชีวิตจากโรคนี้ในผู้ป่วยเบาหวานมีความหลากหลายค่อนข้างสูงในแต่ละการศึษา วัตถุประสงค์ เพื่อศึกษาปัจจัยที่จะทำนายอัตราการรอดชีวิตของผู้ป่วยเบาหวานที่เกิดโรคไซนัสอักสบจากเชื้อราชนิดรุกราน วิธีการศึกษา การศึกษาแบบย้อนหลังนี้ได้จัดทำในโรงพยาบาลระดับตติยภูมิ 4 แห่ง ในประเทศไทย, มาเลเซีย และเมียนมาร์ โดยเก็บรวบรวมข้อมูลในผู้ป่วยเบาหวานที่เกิดโรคไซนัสอักสบจากเชื้อราชนิดรุกราน ตั้งแต่ปี ค.ศ. 2008 ถึง ค.ศ.2019 ผลที่ต้องการศึกษาคืออัตราการรอดชีวิต ปัจจัยทำนายที่นำมาวิเคราะห์ ได้แก่ อายุ, ระดับฮีโมโกลบินเอวันซีในเลือด, ภาวะเลือดเป็นกรดคีโต, ระดับเม็ดเลือดขาว, ภาวะน้ำตาลในเลือดสูง, ระยะเวลาที่เป็นโรคเบาหวาน, การใช้ยารักษาเบาหวานในปัจจุบัน, ระดับครีเอทีนีนในเลือด, และการกระจายของโรคไซนัสอักสบจากเชื้อราชนิดรุกรานเข้าไปที่ตา, คาเวอร์นัสไซนัส และโพรงสมอง ผลการศึกษา มีการเก็บรวบรวมข้อมูลในผู้ป่วยเบาหวานที่เกิดโรคไซนัสอักสบจากเชื้อราชนิดรุกราน 65 ราย (อายุเฉลี่ย 57.9±13.4 ปี, เพศชาย 60%) ผลพบว่า อัตราการเสียชีวิตอยู่ที่ 21.5 % โดยพบว่าการกระจายของโรคไซนัสอักสบจากเชื้อราชนิดรุกรานเข้าคาเวอร์นัส ไซนัส (hazard ratio 5.1, 95% CI [1.4–18.2], p=0.01) และโพรงสมอง (hazard ratio 3.4, 95% CI [1.1–11.3], p=0.05) เป็นปัจจัยทำนายอัตราการเสียชีวิต ส่วนการรักษาเบาหวานเป็นปัจจัยที่ลดความเสี่ยงของการเสียชีวิต (hazard ratio 0.2, 95% CI [0.1–0.9], p=0.03) ด้านอัตราการรอดชีวิตในระยะเวลา 6 เดือนในผู้ป่วยที่มีการกระจายของโรคไซนัสอักสบจากเชื้อราชนิดรุกรานเข้าไปและไม่เข้าไปที่คาเวอร์นัสไซนัสอยู่ที่ 51.4% และ 83.6% ตามลำดับ, (p <0.01), เข้าไปและไม่เข้าไปที่โพรงสมองอยู่ที่ 53.3% และ 88.9% ตามลำดับ, (p <0.01) และมีการใช้ยารักษาเบาหวานและไม่มีการใช้ยารักษาเบาหวานอยู่ที่ 82.3% และ 57.5% ตามลำดับ, (p =0.05) สรุป การกระจายของโรคไซนัสอักสบจากเชื้อราชนิดรุกรานเข้าไปที่คาเวอร์นัสไซนัสและโพรงสมองเพิ่มความเสี่ยงต่อการเสียชีวิตในผู้ป่วยเบาหวาน การรอดชีวิตมีความสัมพันธ์กับการใช้ยารักษาเบาหวานในปัจจุบัน

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Access To Malaria Diagnostic Testing, Anti-Malarial Treatment And Long-Lasting Insecticidal Nets Among Immigrant Workers In Yala Province, Southern Thailand, Tinzar Naing Jan 2019

Access To Malaria Diagnostic Testing, Anti-Malarial Treatment And Long-Lasting Insecticidal Nets Among Immigrant Workers In Yala Province, Southern Thailand, Tinzar Naing

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: In Southeast Asia, trans-border migration from neighboring countries into Thailand is a well-known phenomenon. Population movement and migration is a factor having significant implications for vector-borne disease transmissions. Objectives: This study aims to assess migrants’ access to malaria diagnosis and treatment in Yala province who have had fever in the previous three months and to evaluate the coverage and utilization of ITNs (insecticidal nets). Methodology: A survey was conducted among 414 immigrant workers, in which information was sought on socio-demography, history of fever, health seeking behaviours, net ownership and utilization. Survey analysis was employed. Results: As key findings, 36.5% …

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Evaluation Of The Outcomes And Regression Rate After Early Treatment For Retinopathy Of Prematurity Treatment In King Chulalongkorn Memorial Hospital, Yothin Titawattanakul Jan 2019

Evaluation Of The Outcomes And Regression Rate After Early Treatment For Retinopathy Of Prematurity Treatment In King Chulalongkorn Memorial Hospital, Yothin Titawattanakul

Chulalongkorn University Theses and Dissertations (Chula ETD)

Primary objectives: To study the unfavorable outcomes and assess the regression rate after early treatment protocol for the ROP in KCMH. - Secondary objectives: To study the complications and evaluate the progression and recurrence of ROP requiring retreatment after early treatment protocol for the ROP in KCMH. To identify the independent risk factor for the Retinopathy of Prematurity development in KCMH. - Design: The Retrospective descriptive study and retrospective cohort study. - Participants: The study included all premature infants who were screened ROP in King Chulalongkorn Memorial Hospital from January 2009 to January 2014. - Method: The data retrieved from …

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Thai Spelling Correction And Word Normalization On Social Text Using A Two-Stage Pipeline With Neural Contextual Attention, Anuruth Lertpiya Jan 2019

Thai Spelling Correction And Word Normalization On Social Text Using A Two-Stage Pipeline With Neural Contextual Attention, Anuruth Lertpiya

Chulalongkorn University Theses and Dissertations (Chula ETD)

Text correction systems (e.g., spell checkers) have been used to improve the quality of computerized text by detecting and correcting errors. However, the task of performing spelling correction and word normalization (text correction) for Thai social media text has remained largely unexplored. In this thesis, we investigated how current text correction systems perform on correcting errors and word variances in Thai social texts and propose a method designed for this task. We have found that currently available Thai text correction systems are insufficiently robust for correcting spelling errors and word variances, while the text correctors designed for English grammatical error …

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Quantum Comparator Circuit On Superconducting Quantum Computer, Naphan Benchasattabuse Jan 2019

Quantum Comparator Circuit On Superconducting Quantum Computer, Naphan Benchasattabuse

Chulalongkorn University Theses and Dissertations (Chula ETD)

In this thesis, we present an optimised quantum comparator circuit based on Cuccaro's ripple-carry quantum adder using relative phase techniques from Maslov's multiple control Toffoli optimisation. We extend the cost function from simply counting C-Not and Toffoli gate to Qiskit cost which defines arbitrary single qubit gate cost as unity and C-Not as the only two qubit gate cost as ten. We report the comparison result between our comparator circuit with previous comparator circuits from literature using optimal Toffoli implementation with Qiskit cost, C-Not count, and circuit depth. We also report our experiment of implementing a two-bit comparator on IBM …

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Heuristics Used In Credibility Judgment Of Health Information On Facebook, Yaninee Petcharanan Jan 2019

Heuristics Used In Credibility Judgment Of Health Information On Facebook, Yaninee Petcharanan

Chulalongkorn University Theses and Dissertations (Chula ETD)

Facebook users worldwide had been facing challenges of information credibility. This study aimed to address this issue among Thai Facebook users by focusing on health information in particular, through a lens of heuristic approach. Data were collected from 50 informants by in-depth interviews and 480 responses from online surveys. All participants were at least 18 years old with a minimum of one year experience in using Facebook. The results revealed three different processes and five heuristics, namely, reputation heuristic, authority heuristic, expectancy violation heuristic, persuasive intense heuristic, and bandwagon heuristics that participants adopted when making a credibility judgment of health …

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A Peer-To-Peer Protocol For Prioritized Software Updates On Wireless Sensor Networks, Natchanon Nuntanirund Jan 2019

A Peer-To-Peer Protocol For Prioritized Software Updates On Wireless Sensor Networks, Natchanon Nuntanirund

Chulalongkorn University Theses and Dissertations (Chula ETD)

Software updating is essential for devices in wireless sensor networks for adding new features, improving performance, or patching vulnerabilities. But since some deployed devices are unable to be accessed directly, data dissemination protocol is used for distributing the update to those devices. However, each software updating may have different priority, for instance, an update that adds an optional feature does not have to be applied as fast as an update that patches severe vulnerabilities. This research presents a reliable data dissemination protocol which is configurable for energy-speed trade-off deriving some concepts from BitTorrent such as Handshaking, Segmented File Transfer, and …

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Semantic Segmentation On Remotely Sensed Images Using Deep Convolutional Encoder-Decoder Neural Network, Teerapong Panboonyuen Jan 2019

Semantic Segmentation On Remotely Sensed Images Using Deep Convolutional Encoder-Decoder Neural Network, Teerapong Panboonyuen

Chulalongkorn University Theses and Dissertations (Chula ETD)

One of the fundamental tasks in remote sensing is the semantic segmentation of the aerial and satellite images. It plays a vital role in applications, such as agriculture planning, map updates, route optimization, and navigation. The state-of-the-art model is the Deep Convolutional Encoder-Decoder (DCED). However, the accuracy is still limited since the architecture is not designed for recovering low-level features, e.g., river, low vegetation on remotely sensed images, and the training data in this domain are deficient. In this dissertation, we aim to propose the semantic segmentation architecture in five aspects, designed explicitly for the remotely sensed field. First, we …

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Semi-Supervised Deep Learning With Malignet For Bone Lesion Instance Segmentation Using Bone Scintigraphy, Terapap Apiparakoon Jan 2019

Semi-Supervised Deep Learning With Malignet For Bone Lesion Instance Segmentation Using Bone Scintigraphy, Terapap Apiparakoon

Chulalongkorn University Theses and Dissertations (Chula ETD)

One challenge in applying deep learning to medical imaging is the lack of labeled data. Although large amounts of clinical data are available, acquiring labeled image data is difficult, especially for bone scintigraphy (i.e., 2D bone imaging) images. Bone scintigraphy images are generally noisy, and ground-truth or gold standard information from surgical or pathological reports may not be available. We propose a novel neural network model that can segment abnormal hotspots and classify bone cancer metastases in the chest area in a semi-supervised manner. Our proposed model, called MaligNet, is an instance segmentation model that incorporates ladder networks to harness …

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Gui Test Case Prioritization Using Social Network Analysis, Chawannut Maitrikul Jan 2019

Gui Test Case Prioritization Using Social Network Analysis, Chawannut Maitrikul

Chulalongkorn University Theses and Dissertations (Chula ETD)

Graphical User Interfaces (GUIs) has become popular in today software products due to its user-friendly merit. However, GUI tests are costly and suffer explosive test cases. Moreover, software evolution causes the GUIs inevitably changed resulting in harder testing. Regression test has been widely used for GUIs software testing when software changes. It is considered to be the most expensive phase in the software testing process, though. Among several alternatives, the technique of test case prioritization would help identify the reduced set of test cases in the regression testing suite, still maintain the same criteria as the original number of test …

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Ocean Current Prediction In The Gulf Of Thailand Using Spatio-Temporal Deep Learning On High-Frequency Radar, Nathachai Thongniran Jan 2019

Ocean Current Prediction In The Gulf Of Thailand Using Spatio-Temporal Deep Learning On High-Frequency Radar, Nathachai Thongniran

Chulalongkorn University Theses and Dissertations (Chula ETD)

Ocean surface current prediction is a crucial task for a variety of marine activities, such as disaster monitoring, search and rescue operations, power forecasting, and etc. There are three traditional forecasting approaches: (i) numerical based approach, (ii) time series based approach and (iii) machine learning based approach. However, their prediction accuracy was limited as they did not cooperate with spatial and temporal effects together, including oceanic knowledge is also not considered. This paper introduces the ocean surface prediction model that accounts for spatial and temporal characteristics by a combination between CNN and GRU and also the incorporation of oceanic inputs …

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A Generative Adversarial Network For Generating Realistic Users Using Embedding From Recommendation Systems, Parichat Chonwiharnphan Jan 2019

A Generative Adversarial Network For Generating Realistic Users Using Embedding From Recommendation Systems, Parichat Chonwiharnphan

Chulalongkorn University Theses and Dissertations (Chula ETD)

User data has been used by many companies to understand user behaviors and find new business strategies. However, common techniques could not be used when it comes to new products that have not yet been released due to the fact that there are no prior data available. In this work, we propose a framework for generating realistic user data on new products which can then be analyzed for insights. Our model uses Conditional Generative Adversarial Network (CGAN) with the Straight-Through Gumbel estimator which can also handle discrete-valued outputs. The CGAN is conditioned on product features learned using a recommendation system …

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Adaptive Matrix Multiplication For Various Degree Of Sparsity Using Tensorflow, Siraphob Theeracheep Jan 2019

Adaptive Matrix Multiplication For Various Degree Of Sparsity Using Tensorflow, Siraphob Theeracheep

Chulalongkorn University Theses and Dissertations (Chula ETD)

Matrix multiplication is a fundamental operation used in many problems, and many matrix multiplication algorithms are proposed for many computing environments. TensorFlow is a machine learning platform with many mathematic library functions including matrix multiplication. TensorFlow provides two methods, tf.matmul and tf.sparse_matmul, for matrix multiplication. It is suggested that tf.matmul should be used for dense matrices, and tf.sparse_matmul should be used for sparse matrices. In this work, an approach is proposed to improve the efficiency of matrix multiplication in TensorFlow. The proposed approach divides each matrix into four submatrices, and chooses either tf.matmul or tf.sparse_matmul for the multiplication of each …

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Thai Stock Return Prediction Using Deep Learning Models With Stock Indicators And Textual Features, Tanawat Chiewhawan Jan 2019

Thai Stock Return Prediction Using Deep Learning Models With Stock Indicators And Textual Features, Tanawat Chiewhawan

Chulalongkorn University Theses and Dissertations (Chula ETD)

Stock prediction task is notoriously challenging due to the uncertainty and dynamic external factor which influence the stock behavior. Recently, Deep learning research is gaining popularity on this task but often focuses on only a particular type of data; numeric indicators or textual information. Moreover, most researches focus on only a single stock or a market index. In this paper, we aim to predict multiple stock returns using both types of data. The model consists of dual-stage attention recurrent neural network, our proposed stock relation inference framework, and textual features integration. The proposed stock relation inference help tackles multiple time-series …

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Machine Reading Comprehension For Multiclass Questions On Thai Corpus, Theerit Lapchaicharoenkit Jan 2019

Machine Reading Comprehension For Multiclass Questions On Thai Corpus, Theerit Lapchaicharoenkit

Chulalongkorn University Theses and Dissertations (Chula ETD)

Previous Thai question answering and machine reading comprehension researches focus on small scale dataset and do not utilize the deep learning approach to build the models. In this research, we develop a Thai machine reading comprehension (MRC) model on Thai MRC dataset provided by NECTEC. This dataset consists of 17,000 question-answer pairs and has two classes of questions, which are factoid and yes-no questions. We use BIDAF as the based MRC architecture. We have performed experiments with 3 different multiclass model designs, which includes special tokens, joint, and cascade model. We also utilize contextual embeddings for Thai language to enhance …

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Determining The Effective Authentication Factors Using Touchscreen Phones' Random Numeric Keypad, Nareerat Benjapatanamongkol Jan 2019

Determining The Effective Authentication Factors Using Touchscreen Phones' Random Numeric Keypad, Nareerat Benjapatanamongkol

Chulalongkorn University Theses and Dissertations (Chula ETD)

For the past decade, the increased usage of touchscreen phone devices has driven the mobile application market that prompted the financial institutes to release their own mobile banking applications to better serve their customers. To date, there are two ways a Thai bank customer can access his/her account(s) via the mobile banking application i) using a 6-digit Personal Identification Number (PIN) or ii) using fingerprint. To help to strengthen the current PIN-only authentication which may be exposed to smudge and shoulder-surfing attacks, the research studied and determined the effective authentication factors using a random numeric keypad. The results from the …

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In Vitro Safety And Permeation Assessments Of Lidocaine Loaded In Dissolving Microneedle Patch For Ocular Administration, Sirikool Thamnium Jan 2019

In Vitro Safety And Permeation Assessments Of Lidocaine Loaded In Dissolving Microneedle Patch For Ocular Administration, Sirikool Thamnium

Chulalongkorn University Theses and Dissertations (Chula ETD)

The challenge in ocular drug delivery have brought much attention in pharmaceutical research. Efforts have been made to improve the low bioavailability causing by physiological limitations of ophthalmic drug administration. Topical lidocaine solution is a popular choice for ocular treatment, but less than 5% of topically applied dose reached to the target site. Lidocaine loaded in dissolving microneedle patch was considered a good alternative approach to treating eyes. The study aimed to investigate the cytotoxicity of the lidocaine loaded in dissolving microneedle administration against human corneal epithelial cells (HCECs) as well as ex vivo drug target localization with tissue penetration. …

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Effect Of Extraction Solvents On Biological Activities Of Murraya Paniculata Leaves In Cosmetic Application, Siriruethai Ruanmai Jan 2019

Effect Of Extraction Solvents On Biological Activities Of Murraya Paniculata Leaves In Cosmetic Application, Siriruethai Ruanmai

Chulalongkorn University Theses and Dissertations (Chula ETD)

The objective of this study was to evaluate and compare the antioxidant activity and tyrosinase inhibition activity of Murraya paniculata (Linn.) Jack leaves extract (MPE) obtained from different extraction solvents for the use of cosmetic purposes. The result showed that 75 % ethanolic extract presented the highest antioxidant activity (IC50 = 1.43 mg/mL), the total phenolic content of 66.12 mg GAE/g and the total flavonoids content of 7.83 mg QE/g. All of the obtained extracts had low tyrosinase inhibitory activity. The final MPE lotion contained 1 %w/w of 75 % ethanolic extract dissolved in 50 %w/w of propylene glycol, 20 …

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Projection And Determinants Of Cognitive Ability Among Older Persons In Thailand : Role Of Education, Paolo Miguel Vicerra Jan 2019

Projection And Determinants Of Cognitive Ability Among Older Persons In Thailand : Role Of Education, Paolo Miguel Vicerra

Chulalongkorn University Theses and Dissertations (Chula ETD)

This thesis examines the role of education on cognitive ability among the older population of Thailand. The nationally-representative data primarily utilised in this thesis is 2016 Population Change and Well-being in the Context of Aging Society. Other datasets had been used in selected themes within this thesis. Multiple analytic approaches had been applied to this study to show various effects of education gradients on cognitive functioning. In the first study, education and other covariates including income, health status, living arrangement, and social participation among others had been analysed by gender to test if the significant factors would be similar. It …

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Oxidation States Of Trace Elements In Synthetic Corundum, Ontima Yamchuti Jan 2019

Oxidation States Of Trace Elements In Synthetic Corundum, Ontima Yamchuti

Chulalongkorn University Theses and Dissertations (Chula ETD)

Natural and synthetic corundums have various colors due to trace elements in their structures. Despite the abundance of research on impurities in natural corundum, little is known about trace elements in synthetic corundum. This project is aimed to quantify trace elements and identify their oxidation states related to coloration in red, blue, and yellow synthetic corundums. A total of 15 corundums, synthesized by melt growth process, were investigated by advanced analytical techniques. X-ray diffraction results indicate that all synthetic corundums contain crystalline Al2O3. Measurements from Electron Probe Micro-Analyzer, UV-Vis-NIR, and X-ray Absorption Near Edge Structure spectrometry suggest that Cr3+ is …

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Evaluation Of Landslide Occurrence Using Hydrological Model In Huai Nam Phung Subbasin, Thailand, Rugkiet Chansorn Jan 2019

Evaluation Of Landslide Occurrence Using Hydrological Model In Huai Nam Phung Subbasin, Thailand, Rugkiet Chansorn

Chulalongkorn University Theses and Dissertations (Chula ETD)

Huai Nam Phung subbasin, which is located at the boundary between Loei and Phetchabun provinces, is the area where landslides occur frequently. Therefore, this study aims to evaluate the occurrence of landslides in this area by using the Digital Elevation Model (DEM), Meteorological data hydrological data and physical properties of soils processed with the Geographic Information System (GIS) to analyze the physical data of the study area and use the TOPography based hydrological MODEL (TOPMODEL) combined with the theory of factor of safety in slope stability to simulate the slope stability between 2016 and 2017. According to the satellite imageries …

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Wage Compensation Differentials For Job Risk Between Formal And Informal Workers, Pinyada Suwannarat Jan 2019

Wage Compensation Differentials For Job Risk Between Formal And Informal Workers, Pinyada Suwannarat

Chulalongkorn University Theses and Dissertations (Chula ETD)

This research estimates compensating wage differentials for job risks for formal and informal workers in Thailand, the latter of whom are not covered by prevailing labor laws. Using data from the National Statistical Office’s Thai Labor Force Survey for years 2012 to 2018 merged with job fatality risk collected by the Social Security Office, the results show that the fatality risk rate has a positive, significant effect on wages. The value of statistical life for the median formal workers is 79.33 million baht compared to 41.5 million baht for the median informal worker. Also, we analyze the relationship between self-reported …

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Product Space And Thailand’S Export Growth And Stability, Rungrawin Warunanont Jan 2019

Product Space And Thailand’S Export Growth And Stability, Rungrawin Warunanont

Chulalongkorn University Theses and Dissertations (Chula ETD)

This research investigates the factors affecting Thailand’s export growth and stability at the product level. There are 3 key factors extracted from international trade data, which are the distance from Thailand to a product (distance), Product Complexity Index (PCI), the competition level of products. Distance reflects the potential of Thailand to successfully export the product base on existing capabilities. PCI informs the complexity of producing and exporting process of the product. The competition level illustrates the number of exporters and potential of being exported by other countries. We have found that the export of far products grow fast because there …

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A Textual Analysis Of Financial Disclosure; Evidence From The Stock Exchange Of Thailand, Siriyos Chuthanondha Jan 2019

A Textual Analysis Of Financial Disclosure; Evidence From The Stock Exchange Of Thailand, Siriyos Chuthanondha

Chulalongkorn University Theses and Dissertations (Chula ETD)

This paper empirically explores causal relation between non-financial information and stock price performance by applying textual analysis to listed firms’ financial disclosure in Thailand. Managers generally use language in Management Discussion & Analysis (MD&A) report to communicate value-relevant information to investors and other stakeholders. I applied various kinds of approach to quantify qualitative information. I found that, on average, management discussion reports four main topics, which are financial performance, financial status, external factor and industry specific topic. The result shows that managements discuss more proportion on financial performance topic with more positive net tone, when future ROA is increasing. Additionally, …

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Effects Of Upper Extremity Positions And Movements And Breathing Patterns On Chest Wall Kinematics And Sensation Of Dyspnea In Patients With Chronic Obstructive Pulmonary Disease, Chathipat Kruapanich Jan 2019

Effects Of Upper Extremity Positions And Movements And Breathing Patterns On Chest Wall Kinematics And Sensation Of Dyspnea In Patients With Chronic Obstructive Pulmonary Disease, Chathipat Kruapanich

Chulalongkorn University Theses and Dissertations (Chula ETD)

The objectives of this study were to 1) study the influences of the upper extremity (UE) positions and 2) the combination of UE movements coordinated with breathing patterns on chest wall movements and sensation of dyspnea in patients with chronic obstructive pulmonary disease (COPD). Furthermore, the results were also compared to those of the healthy subjects. We invited forty-two subjects, 21 patients with mild to moderate COPD whose aged, gender, and physical activity were matched to healthy subjects, to participate in this study. In the first part of this study, all participants’ chest wall movements and dyspnea were evaluated while …

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Electro-Deposited Polyaniline On Tio2 As A Photoanode For Improved Photoelectrochemical Performance In Water Oxidation And Methylene Blue, Reeda Jamsri Jan 2019

Electro-Deposited Polyaniline On Tio2 As A Photoanode For Improved Photoelectrochemical Performance In Water Oxidation And Methylene Blue, Reeda Jamsri

Chulalongkorn University Theses and Dissertations (Chula ETD)

Polyaniline (PANI) deposited on TiO2 as a photoanode has been synthesized by the electro-polymerization method. The electrodeposition was performed in aqueous solutions containing 0.5 M aniline and 1 M H2SO4 at a constant current density. The photoanode demonstrated its potential applications for photocatalytic degradation of methylene blue dye (MB) and photoelectrochemical (PEC) water splitting. A ~2.7 fold enhancement in the photodegradation activity at 0.9V vs. Ag/AgCl of a bias voltage and the high water oxidation photocurrent density of PANI/TiO2 on FTO photoanode achieves 1.3 mA cm-2 at 0.6V vs. Ag/AgCl under illumination which is higher than that pure TiO2 on …

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Incorporating Air-Conditioning Monitoring And Control In Building Energy Management Systems Using Data Science Approach, Pornpra Chumnanvanichkul Jan 2019

Incorporating Air-Conditioning Monitoring And Control In Building Energy Management Systems Using Data Science Approach, Pornpra Chumnanvanichkul

Chulalongkorn University Theses and Dissertations (Chula ETD)

This thesis proposes an analytic and control algorithm for a split-type air conditioner (AC) in building energy management systems (BEMS) using data science approach. Available data used in this research are from three sources including Chulalongkorn University Building Energy Management Systems (CUBEMS), Chulalongkorn University Solar Forecast (CUSF) platform and Thai Meteorological Department (TMD). Measured AC power consumption and measured indoor zonal temperature are obtained from CUBEMS. Outdoor weather data are obtained from CUSF platform and TMD. The main procedure of this work can be divided into three processes: four-level AC classification, AC power baseline modeling, and hybrid AC control algorithm. …

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Development Of Ecoregion Criteria Through Assessment Of Changing Floating Vegetation: A Case Study Of Intha Communities In Inlelake, Myanmar, Saint N/A Jan 2019

Development Of Ecoregion Criteria Through Assessment Of Changing Floating Vegetation: A Case Study Of Intha Communities In Inlelake, Myanmar, Saint N/A

Chulalongkorn University Theses and Dissertations (Chula ETD)

The Inle Lake ecoregion, one of the fresh water ecoregions in the Global 200 list of ecoregions, is facing impacts of sedimentation from upland catchments. Sediment loads and soil sediment characteristics from degraded forest of Kalaw catchment shallowed and reduced plant nutrients in the Inle Lake ecosystems where used to be well recognized for the balancing between Intha livelihoods and natural production of littoral and pelagic zones. This study aimed to assess causes of ecological function change in terms of high sediment loads influencing Intha livelihoods; floating vegetation and to propose criteria for ecoregion development concerning sustainable floating vegetation yields …

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Microencapsulation Of Probiotics Using Goat Milk And Konjac Glucomannan Hydrolysate Via Spray Drying, Sudhinee Harindhanavudhi Jan 2019

Microencapsulation Of Probiotics Using Goat Milk And Konjac Glucomannan Hydrolysate Via Spray Drying, Sudhinee Harindhanavudhi

Chulalongkorn University Theses and Dissertations (Chula ETD)

Probiotics are beneficial for health when consuming in a sufficient amount. However, probiotics are not tolerant to high temperatures in food processing. Microencapsulation is one technique that using to entrap probiotic cells for applying in food products. Therefore, this research is aimed to study the application of konjac glucomannan hydrolysate (KGMH) in the combination of goat milk to encapsulate Lb. casei-01 by using microencapsulation techniques via spray drying. There were three main parts of this research. Firstly, KGMH from 15-25% (w/w) KGM were determined for prebiotic activity score (PAS) in in vitro. Besides, the positive effect of KGMH in goat …

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