• Membrane and Water Treatment
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• 제11권5호
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• pp.333-344
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• 2020

Advances in industrial development and waste management over several decades have reduced many of the impacts that previously affected ecosystems, however, there are still processes which discharge hazardous materials into environments. Among industries that produce industrial wastewaters, textile manufacturing processes play a noticeable role. This study was conducted to test a novel continuous combined commercial membrane treatment using polyvinylidene fluoride (PVDF), ultrafiltration (UF), and polyamide (PA) nanofiltration (NF) membranes for textile wastewater treatment. The synthetic textile wastewater used in this study contained sodium silicate, wax, and five various reactive dyes. The results indicate that the removal efficiency for physical particles (wax and resin) was 95% through the UF membrane under optimum conditions. Applying UF and NF hybrid treatment resulted in total effective removal of dye from all synthetic samples. The efficiency of sodium silicate removal was measured to be between 2.5 to 4.5% and 13 to 16% for UF and NF, respectively. The chemical oxygen demand in all samples was reduced by more than 85% after treatment by NF.

• Journal of Power Electronics
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• 제15권1호
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• pp.177-189
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• 2015

The output of the controller is said to exceed the input limits of the plant being controlled when a control system operates in a non-linear region. This process is called the windup phenomenon. The windup phenomenon is not preferable in the control system because it leads to performance degradation, such as overshoot and system instability. Many anti-windup strategies involve switching, where the integral component differently operates between the linear and the non-linear states. The range of state for the non-overshoot performance is better illustrated by the boundary integral error plane than the proportional-integral (PI) plane in windup inspection. This study proposes a PI controller with a separate closed-loop integral controller and reference value set with respect to the input command and external torque. The PI controller is compared with existing conventional proportional integral, conditional integration, tracking back calculation, and integral state prediction schemes by using ScicosLab simulations. The controller is also experimentally verified on a direct current motor under no-load and loading conditions. The proposed controller shows a promising potential with its ability to eliminate overshoot with short settling time using the decoupling mode in both conditions.

• Asian Journal for Public Opinion Research
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• 제8권4호
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• pp.432-452
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• 2020

This study explored the representation of risks from the controversial Lynas rare earth refining as a risk event by five Malaysian online mainstream and alternative newspapers using qualitative content analysis. The aim is to uncover the role of the news media in the social amplification and attenuation of risks within the literature evidence as those roles are still uncertain. Content analysis is used to explore the online newspapers' roles guided by the Social Amplification of Risk Framework (SARF). The representations typified environmental, financial, health, occupational, property, radioactive, and technological risks and established connections between four risk types (environmental, financial, radioactive, and health risks). Radioactive risk was repeatedly associated with other risks, suggesting that the volume and information flow focused on radioactive risk as a key ingredient for amplification. This connection shows that the nature of the relationship between risks is multidimensional, contradicting the unidirectional type found in previous studies. Alternative online newspapers amplified and attenuated more risks, thus, providing more diverse coverage than mainstream sources. Consequently, this study provides evidence that risk representation from rare earth refining in a digital news environment is multidimensional and intensified or weakened in a multi-layered pattern. The stakeholders are engaged in a contestation by positioning their narratives to oppose or support their interests, which are amplified or attenuated by the online newspapers as social amplification stations.

• Journal of Trauma and Injury
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• 제35권4호
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• pp.282-286
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• 2022

Complete cricotracheal separation, which is the most severe type of laryngeal trauma, is an uncommonly seen injury that clinicians have limited experience in managing. However, it is potentially fatal. Due to limited exposure to this condition, mismanagement can occur, which may further aggravate the patient's condition. The most crucial part of managing this injury is to establish a secure airway. Tracheostomy under local anesthesia is the preferred method of airway stabilization, in order to avoid further injuries to the airway caused by endotracheal intubation. Here, we discuss the management of complete cricotracheal separation based on a case experienced in the east coast region of Malaysia, where this type of injury is rarely encountered.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2008년도 춘계학술발표대회
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• pp.1104-1107
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• 2008

이미지 혹은 문서 은닉기술은 문서, 영상, 오디오 등 모든 종류의 디지털 데이터에 대하여 연구가 진행되고 있다. 이들은 다양한 목적과 용도로 이용되고 있다. 본 연구에서는 낮은 수준의 보안을 요하는 텍스트를 대용량으로 은닉하여 전달할 수 있는 단순하고 단순한 기법을 구현하였다. 먼저 텍스트 이미지를 결합하고 이를 24 비트 심도의 칼라이미지에 인코딩하여 복구하였다. 결과는 상관기법을 이용하여 분석하였으며 텍스트 이미지의 손실율이 미미한 것으로 판명되었다.

• 복식
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• 제2권
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• pp.9-21
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• 1978

The object of this article is to examine the shapes and the development of the costume worn in the early and middle Yi Dynasty from the viewpoint of the history of customes with the excavated clothing from Chung-Ju (1530 A.D.), Wool-San (1650 A.D.), An-Dong (1650 A.D.) etc. The study of the history of costumes of the early years of the Yi Dynasty has been mainly dependent upon fiblirographical records sofar. So I have arranged in order some excavated clothing of the early Yi Dynasty, which gives us some means for the study of Korean historical costumes. It is noticeably remarkable that the daily wear of the early Yi Dynasty period was excavated for the first time from Chung-ju. The results drawn from this research are: It is argued that the original from of Chul-nik(天翼) has been excavated. This is the remnants Mongolian clothing of the Koryo Dynasty, and it is sketched in the Dai-Myong-jib-lei(大明集禮) as Yo-sun-o-ja which the lower classes usually put on. The similar clothing is also handed down as a Dan-po(緞袍) from the ming Dynasty, and we can presume that Chul-nik was a common clothing regardless of the social status of their wearer. It is also remarkable that even women at those times wore the Chul-nik. The length of the Cheo-go-ri of the early Yi Dynasty was the middle hip length, and the edge of the sleeves was very wide which called Cham-soo, and it was handed down to the middle period of the Yi Dynasty which can be seen in the coat (po) of women(直領袍). The systems of the straight-collar Po(袍) during the early Yi Dynasty were discovered for the first time. This Po(袍) which would represent the po-system of the early years of Yi Dynasty, is handed down even to the middle of Yi Dynasty. The collars of the Po(coat) of the early Yi Dynasty are mostly double collars(二重衿) and these give us the advantage in reconsidering of the cheo-go-ri(赤古里) of the Kingdom of Shin-la, or Koryo Dynasty. The edge of the women's Ba-ji(袴) of the early Yi Dynasty was wide and the Ba-ji had a shoulder belt which connect the front part with the back one, which showed the practical point of Ba-ji. The men's Ba-ji of the middle Yi Dynasty was the same as can be seen today and it is clear that the Mongolian Ba-ji dated to B.C. 1 was the same one also. In the system of the Chi-ma(常), there seems to be no differences between the ancient styles and those of these times.

• Mycobiology
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• 제33권4호
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• pp.243-244
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• 2005

Three fungi newly intercepted from importing plants were identified in 2004. They were Ascochyta chrysanthemi on Lactuca sativa from China, A. spinaciicola on Spinacia oleracea from Denmark, and Leptosphaerulina australis on Brassica oleracea var. capitata from China. The characters of these fungi were described and illustrated.

• International Journal of Fluid Machinery and Systems
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• 제2권2호
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• pp.156-164
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• 2009

This paper aims to describe the importance of data, data collection methods, parameters to estimate the potential of wave energy and environmental impacts. The technical and economical status in wave energy conversion is outlined. Power and energy efficiency relationships are discussed. Many different types of wave-energy converters have been detailed. The progress in wave energy conversion in Malaysia is reviewed.

• Asian Pacific Journal of Cancer Prevention
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• 제14권4호
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• pp.2649-2656
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• 2013

Background: Depression is common in breast cancer patients. The aim of this paper was to make a systematic review of its prevalence and associated factors oin breast cancer survivors. Materials and Methods: An extensive systematic electronic review (PUBMED, CINAHL, PsyINFO and Ovid) and handsearch were carried out to retrieve published articles up to November 2012, using Depression OR Dysthymia AND (Cancer OR Tumor OR Neoplasms as the keywords. Information about the design of the studies, measuring scale, characteristics of the participants, prevalence of depression and its associated factors from the included studies were extracted and summarized. Results: We identified 32 eligible studies that recruited 10,826 breast cancer survivors. Most were cross-sectional or prospective designed. The most frequent instrument used to screen depression was the Center for Epidemiological Studies for Depression (CES-D, n=11 studies) followed by the Beck Depression Inventory (BDI, n=6 studies) and the Hospital Anxiety and Depression Scale (HADS, n=6 studies). CES-D returned about similar prevalence of depression (median=22%, range=13-56%) with BDI (median=22%, range=17-48%) but higher than HADS (median=10%, range=1-22%). Depression was associated with several socio-demographic variables, cancer-related factors, treatment-related factors, subject psychological factors, lifestyle factors, social support and quality of life. Conclusions: Breast cancer survivors are at risk for depression so that detection of associated factors is important in clinical practice.

• Asian Pacific Journal of Cancer Prevention
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• 제17권2호
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• pp.569-573
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• 2016

Background: A colorectal cancer screening program was piloted in two districts of Kedah in 2013. There is scarcity of information on colorectal cancer screening in Malaysia. Objective: Thus, this research was conducted to evaluate the colorectal cancer screening program in the districts to provide insights intop its efficacy. Materials and Methods: A cross sectional study was conducted using data on the colorectal cancer screening program in 2013 involving Kota Setar and Kuala Muda districts in Malaysia. We determined the response rate of immunochemical fecal occult blood test (iFOBT), colonoscopy compliance, and detection rates of neoplasia and carcinoma. We also compared the response of FOBT by demographic background. Results: The response rate of FOBT for first iFOBT screening was 94.7% while the second iFOBT screening was 90.7%. Participants from Kuala Muda district were 27 times more likely to default while Indians had a 3 times higher risk of default compared to Malays. The colonoscopy compliance was suboptimal among those with positive iFOBT. The most common finding from colonoscopy was hemorrhoids, followed by tubular adenoma. Detection rate of carcinoma and neoplasia for our program was 1.2%. Conclusions: In summary, the response rate of iFOBT was encouraging but the colonoscopy compliance was suboptimal which led to a considerably low detection rate.