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Mohd Shahril Amin Bistamam,Mohd Asyadi Azam,Nor Najihah Zulkapli 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2017 NANO Vol.12 No.1
Aligned carbon nanotubes (ACNTs) have very unique properties that made them applicable as electrode material for energy storage devices. ACNTs were grown directly on substrates by catalytic chemical vapor deposition (CVD). Cobalt, thermally-oxidized aluminum and ethanol were used as catalyst, catalyst-support and carbon feedstock, respectively. Optimum catalytic and reaction conditions were investigated by varying the CVD processing temperature and time. CVD processing temperature of 725℃ and processing time at 10 min showed the optimum CNT alignment with thickness of above 2 µm. Other than the effect of catalyst particle diameter, formation of amorphous carbon at the top of CNTs observed by SEM is suggested as another factor that influences the growth mechanism of ACNTs. The CVD processing parameter and the interaction between small carbon patches are supposed to be built after dehydrogenation of the first carbonaceous molecules and the catalyst nanoparticle surface considered as the hidden factors behind the growth results.
Sulaiman, Suhaina,Shahril, Mohd Razif,Wafa, Sharifah Wajihah,Shaharudin, Soraya Hanie,Hussin, Sharifah Noor Akmal Syed Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.14
Background: Dietary carbohydrate, fiber and sugar intake has been shown to play a role in the etiology of breast cancer, but the findings have been inconsistent and limited to developed countries with higher cancer incidence. Objective: To examine the association of premenopausal and postmenopausal breast cancer risk with dietary carbohydrate, fiber and sugar intake. Materials and Methods: This population based case-control study was conducted in Malaysia with 382 breast cancer patients and 382 controls. Food intake pattern was assessed via an interviewer-administered food frequency questionnaire. Logistic regression was used to compute odds ratios (OR) with 95% confidence intervals (CI) and a broad range of potential confounders were included in analysis. Results: A significant two fold increased risk of breast cancer among premenopausal (OR $Q_4$ to $Q_1$=1.93, 95%CI: 1.53-2.61, p-trend=0.001) and postmenopausal (OR $Q_4$ to $Q_1$=1.87, 95%CI: 1.03-2.61, p-trend=0.045) women was observed in the highest quartile of sugar. A higher intake of dietary fiber was associated with a significantly lower breast cancer risk among both premenopausal ($ORQ_4$ to $Q_1$=0.31, 95%CI: 0.12-0.79, p-trend=0.009) and postmenopausal ($ORQ_4$ to $Q_1$=0.23, 95%CI: 0.07-0.76, p-trend=0.031) women. Conclusions: Sugar and dietary fiber intake were independently related to pre- and postmenopausal breast cancer risk. However, no association was observed for dietary carbohydrate intake.
( Mohd Ariff Jamaludin ),( Shahril Anuar Bahari ),( Mohd Nazarudin Zakaria ),( Nurfarah Syafikah Saipolbahri ) 한국목재공학회 2020 목재공학 Vol.48 No.1
In this study, rice straw and bagasse are used as raw materials to produce binderless particleboard (BPB). This study aims to evaluate the mechanical and physical properties of BPB. We identify the raw material that would be better for the production of BPB from the viewpoint of their basic properties. The BPBs are made from rice straw, bagasse, and combinations of both in ratios of 50:50 and 40:60, respectively. The modulus of elasticity (MOE), modulus of rupture (MOR), internal bonding (IB) strength, water absorption, and thickness swelling properties of the different BPBs are determined and compared. Results showed that all the properties are significantly influenced by the type of particles or particle combinations in the BPB. BPBs made from bagasse alone have the highest MOR, MOE, and IB mean values, whereas BPBs made from rice straw alone exhibit the lowest MOR, MOE, and IB values. Meanwhile, BPBs made from a combination of rice straw and bagasse at 40:60 ratio by weight have the second highest values for properties such as MOR, MOE, and IB, followed by BPBs made from a combination of rice straw and bagasse at 50:50 ratio by weight.
Association between Diet-related Behaviour and Risk of Colorectal Cancer: A Scoping Review
Nur Mahirah Amani Binti Mohammad,Mohd Razif Shahril,Suzana Shahar,Michael Fenech,Razinah Sharif 대한암예방학회 2022 Journal of cancer prevention Vol.27 No.4
Individual dietary patterns may be influenced by diet-related behaviours, which may eventually play a significant role in contributing to colorectal cancer risk. As nearly half of colorectal cancer cases can be prevented through diet and lifestyle modification, in this study, we aimed to present an overview of the literature on diet-related behaviour and its effect on colorectal cancer risk among adults. Articles published from 2011 until July 2021 were selected. Out of the 1,198 articles retrieved, 25 were analyzed. There were 16 case-control studies, and nine of them were cohort studies. As a finding, the instruments used in this review were food frequency questionnaires (n = 23), followed by a semi-structured interview (n = 1), and diet records (n = 1). We demonstrated that unhealthy diet-related behaviours are linked to an increased risk of colorectal cancer in adults and those food frequency questionnaires or food records are common instruments used to collect diet-related behaviours. This article imparts the research trends and directions of colorectal cancer risk factors and shows that diet-related behaviour varies and changes over time
HEMS: Automated Online System for SEGAK Analysis and Reporting
Fadzli Syed Abdullah,Nor Saidah Abd Manan,Aryati Ahmad,Sharifah Wajihah Wafa,Mohd Razif Shahril,Nurzaime Zulaily,Rahmah Mohd Amin,Amran Ahmed 보안공학연구지원센터 2016 International Journal of Software Engineering and Vol.10 No.10
The Ministry of Education Malaysia (MOE) implemented the National Physical Fitness Standard (SEGAK) for Malaysian School Children Assessment Program. Ever since, the SEGAK assessment data had been collected by the respective teachers in every school twice a year, then its summary is being submitted to the State Department of Education manually through email. This creates problems such as lack of a standardized report format, complex formula in calculating SEGAK score and different data interpretation. In this paper, an integrated and automated SEGAK submission and analysis system is proposed. The system, which is known as Health Monitoring System (HEMS), is a web based system developed with an automated pre-processing method and implemented three tier architecture. HEMS have a centralized database that collects the assessment data from seven districts in Terengganu. A total of 35,681 data was collected from 213 primary schools, and 27,201 data from 44 secondary schools, giving a big total of 67,519 data. During the pre-processing, 4,637 data or 6.9% of the collected data were excluded due to wrong and incomplete information. Using HEMS template, the submitted data have a consistent format of data types. HEMS generates an automated analysis and reporting for the use of related authorities.
Rahman Zuraida Abd,Seman Zulkifli Ahmad,Othman Ayu Nazreena,Ghaffar Mohamad Bahagia Ab,Razak Shahril Ab,Yusof Muhammad Fairuz Mohd,Nasir Khairun Hisam,Ahmad Khairulmazmi,Chow Yeow Lit,How Teo Chee,Saa 한국식물생명공학회 2022 Plant biotechnology reports Vol.16 No.3
The current study recognised the issues encountered in regenerating Malaysia MR219 rice plantlet via microspore culture and attempted to develop an efficient protocol in overcoming the restraints. In the present study, a high proportion of uninu- cleate microspores (49.17%) was isolated from Stage 2-Segment II panicle (59–61 days), which also exhibited the highest callus initiation rate of 8.50%. Maintenance of the panicles under a cool temperature of 4 °C for 7 days before isolating the microspores, resulted in the highest microspore viability of 58.33% and callus initiation rate of 9.33%. The microspore isola- tion protocol was also optimised in the present study. The filtration sieve engagement with a pore size of 80 µm and further suspension centrifugation at 800 rpm for 5 min produced the highest microspore viability percentage and callus initiation rate. The incorporation of 3.0 mg/L kinetin in conjunction with 0.5 mg/L 2,4-D greatly enhanced the callus initiation rate, with 11.33%. The callus proliferation capacity, with the formation of 481.67 mg callus, was significantly promoted by the addition of 1.0 mg/L kinetin and 0.5 mg/L 2,4-D into the growth medium. Moreover, a higher green plantlet regeneration frequency of 2.83% was induced by the supplementation of 8% sucrose, which produced an average of 3.50 green plantlets.