cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5281/zenodo.2843139
title: WALOWA (WAve LOads on WAlls) - Large-scale Experiments in the Delta Flume on Overtopping Wave Loads on Vertical Walls

description: Coasts of low lying countries are often comprised of a gentle foreshore and shallow waters, followed by a dike and a promenade. At the end of the promenade buildings or storm walls are constructed. This setting makes it possible for waves to overtop the dike and impact on the storm wall or building. Especially during storm season the overtopping waves induce large loads on these structures. New scenarios for climate change and sea level rise make it worthwhile to invest in research regarding overtopping wave loads. Within the European project 'Wave Loads on Walls' (WaLoWa) model tests in the Delta flume (The Netherlands) were conducted. It is the aim to study overtopping wave loads on storm walls and buildings. The project is coordinated by Ghent University (Belgium), in cooperation with TU Delft (The Netherlands), RWTH Aachen (Germany), University of Bari, University of L'Aquila, University of Calabria and University of Florence (Italy) and Flanders Hydraulics Research (Belgium). The project is financed by a grant by Hydralab+ in the framework of the EC Horizon 2020 program. A model geometry comprised of a sandy beach, a sloping dike, promenade and wall structure was built into the Delta flume. The beach alone consists of 1000m³ sand material and was an essential part of the structure, to obtain the broken wave conditions similar to reality. Waves representing a storm with a 1000 year return period and an additional water level to account for sea level rise result in the tested superstorm conditions. Measurements of the water surface elevation were taken close to the paddle, along the mildly sloping foreshore and at the dike toe location by resistance type wave gauges mounted to the flume side wall. The bathymetry of the sandy foreshore was measured by a mechanical profiler before and after the test. The overtopping flow properties thickness and velocity were measured by resistance type wave gauges, ultra-sonic distance sensors, paddle wheels and an electro-magnetic current meter installed along the promenade. Finally, the impact forces and pressures on the wall were measured by compression load cells and pressure sensors respectively. The data-set was complemented by a number of synoptic measurements, such as laser scan profiles, GoPro images, High-speed camera images, Digital camera images. Due to its large storage size, these data are provided on request.
DOI: 10.5519/qd.f5hilxbf
title: Query on the Natural History Museum Data Portal (data.nhm.ac.uk) (12 records)
DOI: 10.14457/cu.the.2008.1602
title: Patient radiation dose and image quality in simple radiographic projections using computed radiography (CR) system : comparison the results between before and after the training

description: The purpose of this study is to determine the patient dose in clinical setting from the CR system while maintaining the image quality and the retake rate reduction. The data were collected from patients examined at two X-ray rooms, No.4 and EMS, in five routine types of seven projections. Those were chest (PA), abdomen (AP), cervical spine (AP), lumbar spine (AP/LAT), and skull (PA/LAT) at Rajavithi Hospital, Ministry of Public Health, Bangkok Thailand. 458 digital images were collected for the purpose of the dose determination and image quality over a period of one month. The entrance surface dose (ESD) was calculated using the data of the entrance surface air kerma, ESAK, the radiographic technique data, the patient data and back scatter factor for a selected group of patients in the period of before and after the training program. Image quality was evaluated by two radiologists as Grade A (clearly accept), B (accept with some remarks) and C (reject). The results show that the mean ESD of before and after training in mGy, from Room No.4 of chest (PA) was 0.23/0.17, abdomen (AP) 3.34/3.03, cervical-spine (AP) 0.32/0.29, lumbar-spine (AP/LAT) 3.02/2.72, 8.93/8.32 and skull (PA/LAT) 1.94/1.74, 1.71/1.49 respectively. From Room EMS of chest (PA) was 0.36/0.25, abdomen (AP) 2.84/2.81, cervical-spine (AP) 0.34/0.33, lumbar-spine (AP/LAT) 2.20/1.96, 8.79/7.90 and skull (PA/LAT) 1.57/1.26, 1.58/1.20 respectively. The mean ESD of all projections is less than the international guidance level. For Room No.4, there was no statistically significant in patient dose after training for abdomen (AP), cervical spine (AP) lumbar spine (AP/LAT), and skull (PA/LAT) examinations (p&gt;0.05).Whereas for chest (PA) has statistically significant improvement (p&lt;0.05). For Room EMS, there was no statistically significant in patient dose after training for abdomen (AP), lumbar spine (AP), and skull (PA/LAT) examinations (p&gt;0.05).Whereas for chest (PA), cervical spine (AP) and lumbar spine (LAT) show statistically significant to patient dose (p&lt;0.05). The poor image quality caused by the patient positioning, over-under exposure, and image artifact. The reject analysis before and after training was 51/1,488 images or 3.4% and 66/2,668 images or 2.5% from Room No.4, and 75/2,751 images or 2.7% and 72/ 2,905 images or 2.5% from Room EMS. The cause of retake was mainly from patient positioning. The data are useful for the formation of national guidance levels as recommended by IAEA.
DOI: 10.14457/cu.the.2008.1603
title: The study of computed tomography dose profile width using computed radiography imaging plate

description: The quality control of the CT scanner is usually performed by using the film for the dose profile, but film processing is becoming less available in department of radiology. The purpose of this study is to measure the computed tomography (CT) profile width using computed radiography imaging plate (IP) and compared the profile with the measurement from verification film. The suitable parameters of image plate were selected for optimal exposure. Fuji CR IP and Kodak X-Omat V film were exposed to GE LightSpeed RT to study the relation between pixel value or optical density and exposure at 120 kVp, 10-40 mAs, 10 mm collimator. IP was read by Fuji FCR-XG5000 CR reader. Optical density was read by Vidar DosimertyPro VXR-16. The exposure was measured by Unfors Xi semiconductor detector. Cerrobend block combined with lead plate were used to filter the energy of the x-ray beams. The dose profile widths were measured for 5, 10, 15 and 20 mm for both film and IP. The characteristic curves irradiated with computed tomography scanner plotted in semi- log scales between exposure and pixel value showed linearity for film in the high exposure range. For IP, the pixel value saturated at 20 mAs, so the dose of about 10 mAs was selected to study the width of profile. The full width at half maximum measured by film of 5, 10, 15 and 20 mm. collimator beam were 7.7, 11.7, 17.1, and 20.5 mm, respectively, for the plotted of pixel value. When changing the pixel value to exposure, the full widths at half maximum were 6.9, 11.3, 16.5, and 20 mm, respectively. For IP, CT dose profiles were plotted by pixel value and exposure. By pixel value, the CT dose profile widths were 7.8, 11.6, 16.95 and 20.1 mm at L = 1 S = 5, and by exposure were 7.65, 11.3, 16.5 and 19.95 mm at L = 4 S = 200. IP can be used to measure the CT profile width comparable to film. However, the filter needed to be used to avoid the overexposure of IP in CT scanner. For plotting the profile in pixel value, the best parameter was L = 1 S = 5 because the scatter was taken out and it has high contrast. For the CT dose profile width plotted by exposure, the best parameter is L = 4 S = 200. If S value was increased, the dose profile width was narrower. The deviation from collimator width was less when using exposure instead of pixel values or optical density for both film and IP.
DOI: 10.14457/cu.the.2008.1604
title: Preparation of 1-Halo-2,3-propanediol and glyceryl monoester from glycerol waste

description: Glycerol waste from biodiesel production of Bangchak oil refinery plant was separated and utilized to prepare value-added products as mono- and diglycerides. The purification of glycerol waste was successfully carried out by acid-base extraction. The most appropriate acid was H2SO4 and the glycerol could be recovered in the range of 40-45%. 1,2-O-isopropylideneglycerol was next synthesized from the purified glycerol. The mild and efficient approach for (2,2-dimethyl-1,3-dioxolan-4-yl)methyl ester synthesis by esterification of various fatty acids with 1,2-O-isopropylideneglycerol is developed employing Cl3CCONH2 and PPh3 under mild conditions providing the desired esters in high yield. The novel method for deprotecting isopropylidene group of (2,2-dimethyl-1,3-dioxolan-4-yl)methyl ester into the corresponding glyceryl monoester in excellent yield by Br3CCOCBr3–UV irradiation in methanol is also successfully performed. The chlorination of 1,2-O-isopropylidene glycerol to the corresponding alkyl chlorides in moderate yield can also be achieved by the combination of Cl3CCONH2 and PPh3. The advantages of these methods were mild reaction conditions, operational simplicity and good compatibility to alkyl chlorides from cyclic ether of 1,2-O-isopropylidene glycerol.
DOI: 10.14457/cu.the.2008.1605
title: Numerical design of retarded fractional delay differential systems by the method of inequalities

description: The class of retarded fractional delay differential systems (RFDDS) is very general and includes rational systems and retarded delay differential systems as special cases. In practice, a RFDDS can arise when the controlled plant is characterized by fractional delay differential equations and/or when the controller used is of fractional order. The primary objective of this thesis is to develop computational methods to make possible the design of RFDDSs by the method of inequalities (MoI). In the design by the MoI, design problems are usually formulated so that they are suitable for solution by numerical methods. Accordingly, the design procedure comprises two phases of computation. First, seek a stability point in design-parameter space. Second, search in the stability region for a design solution by starting at the stability point so obtained. In this thesis, for RFDDSs, a computational stability test and a method for computing the abscissa of stability of the characteristic function are devised. Moreover, fractional controllers are designed for SISO and MIMO plants by the MoI together with conventional step-response criteria, using the developed computational tools. The numerical results evidently show the effectiveness of the systematic design procedure as well as the usefulness of the tools.
DOI: 10.14457/cu.the.2008.1606
title: Phytochemical and bioactivities of Knema glauca and Knema furfuracea

description: Chemical investigation of the stems, leaves and fruits of Knema glauca (family Myristicaceae) led to the isolation of a new linear diterpene named glaucaic acid, a phenylacylresorcinol, 2,6-dihydroxyphenyl-tetradecan-1-one. In addition to an acylresorcinol, malabaricone A, a phenylacylphloroglucinol, 1-(2,4,6-trihydroxyphenyl)-9-phenylnonan-1-one, an acylphloroglucinol, 1-(2,4,6-trihydroxyphenyl)-undecan-1-one, a flavan-acylphloroglucinol, myristinin A, a flavan-phenylacylphloroglucinol, myristinin D, two furofuran lignans, asarinin and sesamin, and a flavan, (±)-7,4΄-dihydroxy-3΄-methoxyflavan. From the stems and leaves of Knema furfuracea, another myristicaceous plant, a new arylnaphthalene lignan named furfuracin, together with two known lignans, (+)-trans-1,2-dihydrodehydroguaiaretic acid and fragransin A2, two acylbenzoic acids as a 1:1 mixture of gingkoic acid and anarcardic acid, two phenylacylbenzoic acids as a 1:2 mixture of 2-hydroxy-6-(12-phenyldodecyl)benzoic acid and 2-hydroxy-6-(12-phenyldodecen-8΄Z-yl)benzoic acid, and an isoflavone, biochanin A, were isolated. The chemical structures of these compounds were determined by spectroscopic analyses, including UV, IR, MS and NMR, and comparison with previously reported data. 1-(2,4,6-Trihydroxy-phenyl)-undecan-1-one was moderately cytotoxic against NCI-H187 cell line with an IC50 value of 5.60 µg/ml, whereas 2,6-dihydroxyphenyl-tetradecan-1-one was moderately cytotoxic against KB cell line with an IC50 value of 9.15 µg/ml. 1-(2,4,6-Trihydroxy-phenyl)-9-phenylnonan-1-one exhibited moderate cytotoxicity against BC cell line with an IC50 value of 8.23 µg/ml. Malabaricone A, 1-(2,4,6-trihydroxy-phenyl)-undecan-1-one and 1-(2,4,6-trihydroxy-phenyl)-9-phenylnonan-1-one were active against Mycobacterium tuberculosis, herpes simplex virus type 1 and were able to inhibit the formation of Advanced Glycation End-Products. Moreover, malabaricone A was able to display higher anti-malarial activity than the standard compound, dihydroartemisinin, with an IC50 value of 2.78 nM
DOI: 10.14457/cu.the.2009.1527
title: Turbidity removal and trihalomethanes (THMs) formation in turbid surface water coagulation using ferric coagulant from natural iron in groundwater reacted with chlorine

description: This research aimed at studying the possibility of using ferric coagulant which was produced from natural iron in groundwater reacted with chlorine for removing turbidity from surface water. Ping River water, which is currently the main water source utilized to produce water supply for Chiang Mai city, was selected as turbid surface water for the experiments. A selected groundwater in this study was from the shallow well near Ping River sampling point that naturally contains more or less 21 mg/L of total iron. Coagulations were experimented in Jar-test unit by using various sodium hypochlorite concentrations as chlorine sources added into different ratios of groundwater and surface water. The results shows that chlorine dosage of 30 mg as Cl2 per one liter of groundwater was the optimal chlorine dosage for producing maximum ferric coagulant of about 21 mg/L(as total iron). The ratio of groundwater to surface water of 35:65 under the previous optimal chlorine dosage were found to be the most appropriate coagulation condition for turbidity removal which could reduced turbidity in surface water to be below 10 NTU. In addition, it was observed that coagulation operated by dosing chlorine into a mixture of groundwater and surface water (called as post-chlorine adding method) gave more efficient turbidity removal than that of dosing chlorine into groundwater before mixing with surface water (called as pre-chlorine adding method). This study was also interested on trihalomethanes (THMs) formation in the coagulated water under the above-mentioned operational conditions. The results shows that total THMs concentrations at ratios of groundwater to surface water of 35:65 and 50:50 in raw water were 2.98 µg/L and 2.67 µg/L, respectively, whereas those in coagulated waters were increased to be 51.17 µg/L and 51.47 µg/L, respectively, which were higher than the Maximum Contaminant Level (MCL) for THMs of 40μg/L for stage 2 but were lower than that of 80μg/L for stage 1 of drinking water standard issued by U.S. Environmental Protection Agency (USEPA, 1998). Furthermore, chemical cost of sodium hypochlorite used in the coagulation process proposed by this study and chemical cost of the coagulation by commercial ferric chloride were compared, it could be stated that coagulation by using sodium hypochlorite added into a mixture of groundwater and surface water to produce ferric coagulant was cheaper than that of utilizing commercial ferric chloride.
DOI: 10.14457/cu.the.2009.1528
title: Detection of immune-mediated hemolytic anemia in cats by flow cytometry

description: The study of the prevalence of feline immune-mediated hemolytic anemia and tested the applicability of flow cytometry for the detection of feline immunoglobulin-G (IgG) and immunoglobulin-M (IgM) on red blood cell using goat-anti-cat IgG and IgM compared with Coombs' test in ten healthy and nineteen anemic cats was performed. Of nineteen anemic cats, five cats had positive Coombs' test results for IMHA. Using flow cytometry, all five Coombs'test positive cats were significantly positive on both IgG and IgM. From seven of fourteen Coombs' test-negative cats flow cytometry showed increased IgG and IgM on the results which indicated IMHA. Thus, flow cytometric analysis is proved to be a sensitive technique which can help in detecting red blood cell-bound feline IgG and IgM. Flow cytometry provided a more sensitive and cost-effective method to quantitate erythrocyte-bound immunoglobulin than feline Coombs' test.
DOI: 10.14457/cu.the.2009.1529
title: Knowledge, attitude, and practice toward Clostridium Botulinum outbreak in home-canned bamboo shoots at Pakaluang subdistrict, Ban Luang district, Nan province, Thailand

description: To assess the level of knowledge, attitude and practice toward clostridium botulinum outbreak in home-canned bamboo shoots at Pakalung Subdistrict, Ban Luang District, Nan Province, Thailand. Using cross-sectional analytic study, 280 participants was selected by systematic random sampling form Pakalung Subdistrict, Ban Luang District, Nan Province, Thailand. Data collection was done by face to face interview using structure-questionnaire. The results indicated that the prevalence of knowledge and attitude of whom were at moderate level, 57.90% and positive level, 48.20% respectively. The prevalence of good practice level was 89.60%. Furthermore, the knowledge was associated with social-demographic characteristics (p &lt; 0.05) such as age group, occupation, level of education (p &lt; 0.001) and monthly income (p &lt; 0.001). The attitude was associated with age group (p &lt; 0.05), level of education (p &lt; 0.002), monthly income and occupation (p &lt; 0.001) respectively. Education level (p &lt; 0.05), monthly income and occupation were associated with practice level (p &lt; 0.001). There was a significant association between attitude and practice (p &lt; 0.001). The knowledge was not statistically significant with the practice (p = 0.201). In conclusion, this study could be applied for prevention and control of C.botulinum in other area with similar context.
DOI: 10.14457/cu.the.2009.1530
title: NAD kinase from rice Oryza sativa L. and recombinant enzymes

description: เอ็นเอดีไคเนส (NAD kinase) เป็นเอนไซม์ที่พบทั้งในเซลล์โปรคาริโอตและยูคาริโอต มีหน้าที่สร้าง NADP+ จาก NAD+ โดยใช้พลังงานจาก ATP ผ่านปฏิกิริยาฟอสฟอริเลชัน NAD+ และ NADP+ เป็นตัวรับอิเล็กตรอนที่สาคัญในระบบเมแทบอลิซึม ควบคุมปฏิกิริยารีดอกซ์ในเซลล์ และป้องกันเซลล์จาก reactive oxygen species (ROS) ในงานวิจัยนี้เป็นการระบุหายีน NAD kinase 1 (OsNADK1) และ NAD kinase 2 (OsNADK2) จากจีโนมข้าว และโคลนเข้าสู่ pET21a(+) แล้วนาพลาสมิดรีคอมบิแนนท์ทรานฟอร์มเข้าสู่ Escherichia coli สายพันธุ์ Rosetta (DE3) pLysS และ Rosetta-gami สาหรับ OsNADK1 และ OsNADK2 ตามลาดับ จากการตรวจสอบการสร้างโปรตีนรีคอมบิแนนท์โดยวิธี SDS-PAGE และ Western blot analysis พบว่าโคลนดังกล่าวสามารถสร้างโปรตีนรีคอมบิแนนท์ของ OsNADK1 ปริมาณมากในรูปอินคลูชันบอดี ซึ่งมีขนาดประมาณ 60 kDa เมื่อนาโปรตีนมาละลายด้วยยูเรียความเข้มข้น 8 โมลาร์ ไปแยกให้บริสุทธิ์โดยใช้คอลัมน์นิกเกิลแล้ว refold พบว่า โปรตีนไม่มีแอกติวีตี แต่เมื่อนาส่วน soluble protein ไปวัดแอกติวีตีด้วยวิธี in-gel activity staining พบว่า soluble protein ของทั้ง NADK1 และ NADK2 มีแอกติวีตีของ NAD kinase จึงนาส่วน soluble protein ของ NADK1 ไปแยกให้บริสุทธิ์โดยใช้คอลัมน์นิกเกิลพบว่าสามารถตรวจสอบโปรตีนรีคอมบิแนนท์ด้วย SDS-PAGE และเมื่อวัดด้วยปฏิกิริยารีดิวซ์ของ DCIP ได้ค่าแอกติวิตีเท่ากับ 31.33 μmolNADP/min/mg ซึ่งสูงกว่าสารละลายโปรตีนหยาบประมาณ 23 เท่า โดยมีค่า KmNAD เท่ากับ 0.79 mM ค่า KmMgATP2- เท่ากับ 0.29 mM ค่า Vmax NAD เท่ากับ 0.35 units.mg-1protein และค่า Vmax MgATP2- เท่ากับ 2.32 units.mg-1protein จากนั้นเมื่อตรวจสอบแอกติวิตีของโปรตีนสกัดจากใบข้าวขาวดอกมะลิ 105 ที่เลี้ยงในสารละลายอาหารที่มีเกลือ 150 มิลลิโมลาร์พบว่าแอกติวิตีของ NAD kinase ลดลงตั้งแต่ 6 ชั่วโมงเป็นต้นไปและลดลงเรื่อยๆ จนถึง 24 ชั่วโมงหลังการได้รับความเค็ม เมื่อนาโปรตีนไปแยกให้บริสุทธิ์บางส่วนด้วยคอลัมน์โครมาโทกราฟีของ DEAE-Toyopearl และ Butyl-Toyopearl พบว่าแอกติวิตีของ NAD kinase (0.7 μmol NADP/min/mg) มีความบริสุทธิ์ขึ้นทั้งหมด 12 เท่า นอกจากนี้การตรวจสอบการจับกับคัลมอดุลินโดย 35S-recombinant CaM binding assay พบว่า OsCaM1-1 จับโปรตีนรีคอมบิแนนท์ NADK2 ได้อย่างจาเพาะแสดงให้เห็นว่า NADK2 น่าจะเป็นโปรตีนเป้าหมายของ OsCaM1-1
DOI: 10.14457/cu.the.2009.1531
title: The development of a cultural enrichment course with an emphasis on academic culture for Thai students in the bilingual program

description: The objectives of the study were 1) to develop the Cultural Enrichment Course with an emphasis on the academic cultures for Thai students in the bilingual program; 2) to investigate the effects of the course on the students’ cultural awareness on the differences of Western and Eastern academic cultures and; 3) to investigate students’ learning preference towards academic cultures. At first, the researcher surveyed the differences of academic cultures between foreign teachers and Thai students in a bilingual program. The instruments consisted of questionnaires, interviews, and reflective writing. It was found that there were the cultural disparities between foreign teachers and Thai students in six academic cultures. The cultural disparities were then developed into six modules of learning. Next, the researcher developed AIREE Instructional Model by integrating five teaching theories: Active Learning, Constructivism, Cooperative Learning, Experiential Learning, and Constructionism. The instruction started with explicit learning of basic concepts in academic cultures taught by the teacher. Then, the learning process gradually shifted to the student-centeredness to cultivate students’ cultural awareness. This course lasted 16 weeks. The instruments for evaluating the modules of learning were the pre and post cultural awareness tests, pre and post questionnaires, pre and post interview, and pre and post learning logs. Quantitative and qualitative data were collected. Quantitative analysis was presented through percentage, mean, standard deviation, and t-test analysis while qualitative analysis was done through content analysis. The statistical results revealed that students gained higher levels of cultural awareness at a significant level of .05. The qualitative analysis showed that students had positive learning preference towards applying Western academic cultures in the bilingual program. However, students were aware of the importance of the Eastern academic cultures. The study also showed that AIREE Instructional Model could raise students’ cultural awareness towards Western and Eastern academic cultures. In addition, it can be applied in the instruction and training for Thai and foreign teachers to make them aware of the differences of academic cultures.