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Krishnan, Hari B.,Kang, Beom Ryong,Hari Krishnan, Ammulu,Kim, Kil Yong,Kim, Young Cheol American Society for Microbiology 2007 Applied and environmental microbiology Vol.73 No.1
<B>ABSTRACT</B><P>Phenazine production was engineered in <I>Rhizobium etli</I> USDA9032 by the introduction of the <I>phz</I> locus of <I>Pseudomonas chlororaphis</I> O6. Phenazine-producing <I>R. etli</I> was able to inhibit the growth of <I>Botrytis cinerea</I> and <I>Fusarium oxysporum</I> in vitro. Black bean inoculated with phenazine-producing <I>R. etli</I> produced brownish Fix<SUP>−</SUP> nodules.</P>
The effect of electrolyte wettability on reforming catalyst in direct ethanol MCFC
Hary Devianto,Zhenlan Li,윤성필,한종희,남석우,임태훈,이호인 한국물리학회 2010 Current Applied Physics Vol.10 No.2
To overcome the poisoning of reforming catalyst contacted with the electrolyte without degradations of performance and long-term stability, we proposed on the development of support which has low wettability to electrolyte, but still keeps high activity on steam reforming of bio-ethanol. To perform the wettability measurement, a couple of supports (MgO and PbO) were pressed to form disc-shaped specimen with relatively low porosity, and subjected to an on-line optical contact angle measurement device at MCFC operating condition. The results of wettability of the supports indicated that PbO showed low wettability to the carbonates melts giving high contact angle. The microstructure of unreacted PbO layer might be contributed to its low wettability. The highest activity was achieved with Ni/MgO, while the lowest wettability was attained with PbO as a support. Ni/1MgO·1PbO seemed to be the most promising candidate for avoiding the reforming catalyst from poisoning.
Hary Yu,Sun Min Park,Min Suk Rhee 한국식품영양과학회 2021 한국식품영양과학회 학술대회발표집 Vol.2021 No.10
This study aimed to propose themes for future viral research, with increasing considerations and demands on viral food safety. National strategies and research and development (R&D) projects, completed or in progress within 10 years, were investigated in food safety agency websites/reports of five countries (United States, United Kingdom, Germany, Canada, and Australia/New Zealand). The research themes were extracted, listed, and further categorized into 10 major subdivisions ("detection methods", "genetic analysis", "surveillance", etc.) based on the opinions of food safety experts. Research projects regarding "basic characterization", such as survival or resistance analysis, took the highest proportion, followed by projects on "epidemiology" or "disinfection". Moreover, foodborne (norovirus, rotavirus, hepatitis A/E virus) and zoonotic viruses (influenza A virus, avian influenza virus, coronavirus including SARS-CoV-2) focused in predominant numbers of the global research projects were identified. The results of this study support the importance and urgency of future national research projects which could ensure virus issues in aspects of food safety.
Microcredit for rural poverty alleviation and social well-being: A study of Sabah, Malaysia
Haris Abd. Wahab,William Bunyau,M. Rezaul Islam 한국사회복지학회 2018 Asian Social Work and Policy Review Vol.12 No.1
Microcredit is an influential intervention used to alleviate poverty and improve social well-being in rural communities in Sabah, Malaysia. This study examined the effects of a microcredit scheme, Amanah Ikhtiar Malaysia (AIM), on the well-being of these communities. Using a survey method, a pre-tested interview schedule was administered to 277 AIM recipients in Sabah, Malaysia. Social well-being was examined based on the three indicators of Midgley’s social development approach: the management of problems, the fulfillment of basic needs, and social opportunities provided. AIM microcredit schemes were successful in improving the well-being of AIM recipients, although the recipients faced a number of problems, including unemployment, lack of education, and access to public services and healthcare facilities. The findings of this study represent a useful guideline to the AIM authority, development practitioners, policymakers, and governmental organization and nongovernmental organization workers
Hary Yu,Sun Min Park,Min Suk Rhee 한국식품영양과학회 2021 한국식품영양과학회 학술대회발표집 Vol.2021 No.10
After the occurrence of the COVID-19 pandemic, there is a growing concern on potential risks of new-emerging pathogens and their link to food safety. This study tried to suggest the virus candidates which could infect humans via foods/food-related environments. A prioritization process was established for the candidates, of which the information was investigated by reviewing websites or reports of international microbiological authorities and academic researches. Prioritization was based on (1) whether the authorities were providing the hazard information, (2) whether it could cause respiratory diseases (respiratory virus) or zoonosis (zoonotic virus), and (3) whether its transmission via foods/environments has been reported. A total of 85 viruses were initially obtained and 48 relevant viruses, including 12 respiratory and 41 zoonotic viruses, were sorted out. Among 48 viruses, pathogens that provoked food (e.g. MERS-CoV, Hepatitis E, Lassa virus, Nipah virus) or animal/environment-mediated infections (e.g. SARS-CoV, Influenza A virus) were nominated as a high priority. This study proposes a blueprint for future microbiological management strategies regarding viral food safety.
An Improved Particle swarm optimization Algorithm for complex nonlinear Problems
Haris Muhammad,Jiyeon Park,Jun Hur,Haewoon Nam 한국통신학회 2022 한국통신학회 학술대회논문집 Vol.2022 No.2
Particle swarm optimizer (PSO) is a very logical algorithm to obtained best solutions in engineering and mathematical field. However the traditional PSO algorithm and the existing different algorithm have the issue of delayed and slow convergence speed in different application problems. To deal with such kind of problems an Improved particle swarm optimization (PSO) is proposed in this paper. The proposed Improved PSO algorithm is been tested on some famous complex benchmark functions.
Polarization Re-Configurable Antenna with Increase Gain for Small Satellites
Haris Mohammad,Khalil Ruhul Amin,Saeed Nasir 대한전기학회 2021 Journal of Electrical Engineering & Technology Vol.16 No.6
Future small satellites require the development of reconfi gurable antennas. Designing such antennas, especially single port patch antennas with circular polarization is a challenging task. Therefore, we propose both right-hand/left-hand circularly polarized (RHCP/LHCP) antenna which can reconfi gure. The proposed antenna follows patch topology with E-shape that is single-layer and single-feed with two RF switches. The switches can alter the polarization in real-time. We also show various properties of the proposed antenna, such as radiation pattern, impedance matching, axial ratio, and bandwidth through simulations and measurements. The proposed model shows excellent performance and agrees well with the measurements. The performance of the antenna shows an eff ective bandwidth of 2.45 GHz–2.82 GHz with a maximum gain of 9.88 dB at 2.55 GHz. The symmetry of the antenna radiation is preserved by switching between the LHCP and RHCP polarization modes.
Expression Profile of Genes Modulated by Aloe emodin in Human U87 Glioblastoma Cells
Haris, Khalilah,Ismail, Samhani,Idris, Zamzuri,Abdullah, Jafri Malin,Yusoff, Abdul Aziz Mohamed Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.11
Glioblastoma, the most aggressive and malignant form of glioma, appears to be resistant to various chemotherapeutic agents. Hence, approaches have been intensively investigated to targeti specific molecular pathways involved in glioblastoma development and progression. Aloe emodin is believed to modulate the expression of several genes in cancer cells. We aimed to understand the molecular mechanisms underlying the therapeutic effect of Aloe emodin on gene expression profiles in the human U87 glioblastoma cell line utilizing microarray technology. The gene expression analysis revealed that a total of 8,226 gene alterations out of 28,869 genes were detected after treatment with $58.6{\mu}g/ml$ for 24 hours. Out of this total, 34 genes demonstrated statistically significant change (p<0.05) ranging from 1.07 to 1.87 fold. The results revealed that 22 genes were up-regulated and 12 genes were down-regulated in response to Aloe emodin treatment. These genes were then grouped into several clusters based on their biological functions, revealing induction of expression of genes involved in apoptosis (programmed cell death) and tissue remodelling in U87 cells (p<0.01). Several genes with significant changes of the expression level e.g. SHARPIN, BCAP31, FIS1, RAC1 and TGM2 from the apoptotic cluster were confirmed by quantitative real-time PCR (qRT-PCR). These results could serve as guidance for further studies in order to discover molecular targets for the cancer therapy based on Aloe emodin treatment.
Hari Sutrisno 국립생물자원관 2015 Journal of species research Vol.4 No.1
Zeuzera is one of the most important wood borer pests in South East Asia. Like of most other genera of moths, the systematic of this genus is still in dispute, especially on the monophyly and the relationship within this genus due to the fact that genus is very varied. This genus was defined based on external characters only such as cross vein Sc-Rs present, humeral plate approximately triangular in shape and anal plate moderately long to moderately short. Therefore, the monophyly of this genus need to be evaluated based on more comprehensive data. To clarify the monophyly of the genus Zeuzera, to reveal the phylogenetic relationships among the Indonesian species, and to establish the genetic characters of Indonesian Zeuzera, we analyzed seven species of Indonesian Zeuzera including three other species distributed around the world based on nucleotide sequence variation across a 580-bp region in the CO I gene. The results showed that the monophyly of Zeuzera was supported by bootstrap tests at the MP and ML tree building methods (¤95%). Genus Zeuzera was divided into two groups (A and B) with Z. borneana was excluded from the two groups and occupied at the basal node. Indonesian species was distributed into two different clades. CO I gene alone was able to fully resolve the relationships among species within clade B. However, further investigations were needed by including more species and other genes that the more conserved to test the validity of the phylogenetic hypothesis proposed here.