• 한국품질경영학회:학술대회논문집
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• 한국품질경영학회 2006년도 춘계학술대회
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• pp.381-391
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• 2006

When the environmental materials of the raw and sub material to applied in electronic goods removed, the reliability assessment and the forecasting is stand on the low level and in case of neglect, it is acting as latent defect that can be connected to large size disaster. In this research, the study on the management method of environmental restriction substances which is recognized as important element in the reliability assessment about environmental material of electronic goods and the study on reliability assessment method of PWB without environmental material are progressed

• Biomaterials and Biomechanics in Bioengineering
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• 제2권3호
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• pp.173-183
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• 2015

In obstetrics, cardiotocography is a procedure to record the fetal heartbeat and the uterine contractions usually during the last trimester of pregnancy. It helps to monitor patterns associated with the fetal activity and to detect the pathologies. In this paper, random forest classifier is used to classify normal, suspicious and pathological patterns based on the features extracted from the cardiotocograms. The results showed that random forest classifier can detect these classes successfully with overall classification accuracy of 93.6%. Moreover, important features are identified to reduce the feature space. It is found that using seven important features, similar classification accuracy can be achieved by random forest classifier (93.3%).

• Journal of applied mathematics & informatics
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• 제39권5_6호
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• pp.859-882
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• 2021

In the proposed paper, a new algorithm based on Nonlinear Feedback Shift Register (NLFSR) and modified RC4A (Rivest Cipher 4A) cipher is introduced. NLFSR is used for image pixel scrambling while modified RC4A algorithm is used for pixel substitution. NLFSR used in this algorithm is of order 27 with maximum period 2^27-1 which was found using Field Programmable Gate Arrays (FPGA), a searching method. Modified RC4A algorithm is the modification of RC4A and is modified by introducing non-linear rotation operator in the Key Scheduling Algorithm (KSA) of RC4A cipher. Analysis of occlusion attack (up to 62.5% pixels), noise (salt and pepper, Poisson) attack and key sensitivity are performed to assess the concreteness of the proposed method. Also, some statistical and security analyses are evaluated on various images of different size to empirically assess the robustness of the proposed scheme.

• International Journal of Computer Science & Network Security
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• 제21권12spc호
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• pp.539-543
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• 2021

Data mining technique was used to track student's performance during years studding in college and determine the impact of GPA_SEC on the GPA student rates according to the current academic advising method used on student's status. The study utilized a sample of 5436 individuals were drawn from two colleges in Majmaah University, KSA during 2013-2018 period. The results showed that the student's completion status in terms of graduation, dropout, Stumbling or dismissed was classified according to the average grades of admission from secondary school GPA_SEC. The results show the effect of the current academic advising that most of students gain less grades comparing with GPA_SEC in addition that the higher GPA_SEC was the higher graduation, dropout and dismissed decreased when GPA_SEC was high.. Therefore, the study recommends tracking students academically to evaluate their results of each semester to find out the causes of the deficiencies and addressing them within the departments.

• International Journal of Computer Science & Network Security
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• 제22권4호
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• pp.175-182
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• 2022

The new commercial maritime law in the Kingdom came comprehensive and detailed for all topics related to commercial maritime navigation, thus responding to most of the problems that arise in the field, specifically regarding the ship as the focus of the rules of maritime law. This system defines the ship in law, regulates its civil status, determines how to name it, determine its domicile, and the conditions for acquiring Saudi nationality. It also contained a regulation of the rights granted to ships by ownership, as well as their lease and mortgage, the mechanism of attachment to them to settle debts and the rights in kind dependent on them and controlling the rights of third parties on ships and the procedures for forcibly selling them from precautionary seizure and executive seizure and then forced sale in public auction. Until this research was an effort to present a clear picture about the legal system of the ship in the new Saudi commercial maritime system and confirming the extent of the success of the Saudi legislator with the ship system in highlighting the legal frameworks for this facility prepared for maritime navigation.

• International Journal of Computer Science & Network Security
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• 제21권11호
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• pp.181-188
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• 2021

The use of the internet has become a basic need for many across the globe. The situation is very much the same for the youth in many countries like Saudi Arabia who have grown up surrounded and accessing the internet. This demographic, however, is at an increased risk of falling as victims to cybercrime because of a low level of technical awareness. This review looks at the level of technical awareness of internet use in 3 different countries which include the USA, South Africa, and New Zealand. The review will compare the situation in these nations with those in KSA. Based on the review and comparisons, recommendations are made for culturally and socially acceptable e-Safety awareness of Saudi youths.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.578-582
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• 2015

Lack of client involvement in construction of public projects has been identified as the main cause of many operational problems. Clients need to perform their roles and responsibilities effectively and efficiently at the right time and through the use of correct methods in order to have the optimum involvement required during all the construction project phases, namely, the planning, design, construction, handover, and operation and maintenance phase. This paper investigates the influence of clients' individual factors on their involvement in construction project delivery. A questionnaire survey was distributed to various government agencies of the Kingdom of Saudi Arabia (KSA). Explanatory Factory Analysis was performed to group nineteen individual factors. The factor analysis result suggests that the individual factors that can involve clients' involvement in construction projects can be grouped into five, which are: adequacy of knowledge and experience for decision making in the early stage of design; ability to communicate clearly; job satisfaction; personal skills; and expertise in design and construction.

• International Journal of Computer Science & Network Security
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• 제24권3호
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• pp.173-181
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• 2024

The healthy products dedicated for young people are qualified as a solution to protect the future generation, especially that most commercial deals do not consider the consumer's health and environment. Therefore, it is crucial to define the antecedent of healthy purchases and to examine their impact on teenagers. This research aims to explore the antecedents and the consequences of the consumption of Saudis teenagers. Therefore, we develop a research model in the conceptual framework and the hypotheses to test. The empirical analysis required two samples from Saudis youth consumers. The first sample was utilized in the exploratory study with SPSS software. Then, the second was employed to the confirmatory part with the Amos software, as well as the validation of the hypotheses, and model with Fuzzy Set approach. The findings of this study have significant insights into the Saudi consumption and implications for both practitioners and researchers. Then, we have particularly strenuous on intention purchase antecedents of organic foods, and their consume habit moderation.

• 한국방사선학회논문지
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• 제11권4호
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• pp.213-219
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• 2017

본 연구의 목적은 초음파 검사실의 검사환경 설정에 있어 실증적인 기초자료를 제공하는 것에 그 목적을 두고 새로운 초음파 검사실의 검사환경을 설계함에 있어 검사실의 적정조도를 설정하는데 기초자료로 제공하고자 한다. 방법으로는 부산에 소재하고 있는 종합병원 6군데 48곳의 초음파 검사실을 대상으로 조도와 관련된 초음파실 환경을 조사하고 초음파 검사대상자에게 초음파 검사실 환경에 대하여 설문조사를 실시하였다. 결과로는 초음파 검사실 차폐체의 종류에서는 성별, 연령별, 검사부위에 따른 분석에서 모두 Door+Curtain에서, 광원의 종류에서는 LED, 광원조절기가 필요하다에서 점수가 높게 나타났다. 초음파 검사실 환경조사에서는 초음파 검사실 조도 밝기는 평균 10 Lux로서 WHO와 CEC에서 권고하는 조도 밝기범위에 포함되고 있었으며 초음파 검사 대기실 조도 밝기(초음파 검사 대기실, 복도)는 평균 300~800 Lux를 나타내어 KSA 3011에서 권고하는 병원의 조도환경인 300 Lux이상을 만족하였다. 결론적으로 초음파 검사 대상자의 일반적인 배경과 초음파 검사실 관련 환경 요인을 분석한 결과를 토대로 향후 초음파 검사실 환경을 개선하거나 새로운 검사실을 설계함에 있어 기초자료로 제공하고자 한다.

• 한국과학교육학회지
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• 제28권4호
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• pp.282-290
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• 2008

R&E 프로그램은 한국과학영재학교와 과학 고등학교의 과학영재들을 위한 사사교육 프로그램으로, 1년 동안 현직 과학자와 과학교사가 멘토로 참여하며 학생들이 실제 연구 과제를 수행하는 프로그램이다. 이 연구에서는 R&E 프로그램의 주요 목적인 연구 중심의 자기 주도적 학습, 과학적 탐구능력과 창의적인 문제해결능력의 신장, 과학자의 생활과 자세에 대한 인식과 희망 전공 등의 항목에 대해서 R&E 프로그램을 경험한 한국과학기술원 학부과정 신입생 182명을 대상으로 사사교육 프로그램의 효과에 대해서 스스로 어떻게 평가하고 있는지, 설문조사를 통하여 이들의 인식을 조사하였다. 그 결과는 첫째, 프로그램 참여를 통하여 동료들과의 협력(81.0%), 전문 과학지식의 습득(80.8%), 과학자의 생활과 자세에 대한 이해(77.5%), 과학에 대한 흥미(68.7%), 과학적 탐구방법(62.7%), 창의적 사고력(61.5%) 등의 순으로 향상되었다고 긍정으로 인식하였다. 둘째, KAIST 신입생들 사이에 출신 고등학교에 따라서 통계적으로 유의미한 차이가 나타났으며, 과학적 탐구방법 향상(p<.01), 연구과제에 관한 전문적인 과학지식 향상(p<.01)의 항목이었다. 이러한 결과는, 과학자로서의 품성 및 자질 함양, 과학적 탐구능력과 창의적 사고력 향상이라고 하는 과학영재를 위한 사사교육으로서 R&E 프로그램의 목적이 충분히 달성되고 있을 가능성을 보여준다.