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Measurement of Long-Wave Radiometric Properties of Energy Saving Screens for Greenhouse
( Adeel Rafiq ),( Wook-ho Na ),( Adnan Rasheed ),( Hyun-woo Lee ) 한국농업기계학회 2019 한국농업기계학회 학술발표논문집 Vol.24 No.1
Appropriate climate screen can control the temperature and has the huge impact on the quantity and quality of crop. Precise measurement of long-wave radiative properties of screens are vital to select the suitable screen for greenhouse so that the desired temperature and the favorable environment can be provided to plants during night time. Energy saving of screens can also be calculated by giving these properties as an input in a physical model. In literature two approaches are available to measure these properties i.e. by using spectrophotometer and using wide-band radiometers. This study proposed a modified radiation balance method (PRBQ) for determining the total hemispherical long-wave radiative properties of screens by using wide-band radiometers. During this experiment one film and three screens were tested. Polyethylene (PE) film is used as reference material to verify the ability of the setup. Results showed similar radiometric values as given in the literature for polyethylene (PE) film.
Deconstructing Pakistan-India Relationships and Covid-19 Implications
( Adeel Irfan ),( Dongsoo Kim ) 부경대학교 글로벌지역학연구소 2021 Journal of Global and Area Studies(JGA) Vol.5 No.1
States utilize various strategies, including economic makeovers, nuclear proliferation, strengthening ties, upgrading military, and transforming technology to maintain hegemony at the international level. In the strategic calculus of South Asia, nuclear deterrence plays a dominant role and serves as an assurance for peace and stability in the region. Experts claim that mounting nuclear warheads, ethnic, religious, and ideological conflicts, including the Kashmir issue, caused dilapidated security conditions between the Pakistan and India standoff. The research commences with a question as to why the government of India and Pakistan are involved in the latest cross-border incitement despite security challenges. Moreover, the study also examines the impact of Indian escalation on the regional security of South Asia in the era of Covid-19. In so doing, this study reviews the continuous escalating instability of South Asia, especially in the sub-continent, and tries to build a causal relationship between the balance of power and security dilemma. In due course, the causes of the latest Indian provocation will be discussed in reference to the hegemonic theory. Growing India-US strategic partnerships, a regional hegemonic approach, military modernization, and a rising economy were the factors that enabled the Indian military to achieve multiple objectives. Finally, the future prospect in South Asia after Covid-19 will be discussed.
Adeel Rehan,Shoaib FREED 한국곤충학회 2015 Entomological Research Vol.45 No.5
Spodoptera litura is one of the most destructive polyphagous insect pests, with more than 120 host‐plant species. In our present study, a field‐collected population of S. litura when selected with spinosad for 11 consecutive generations resulted in the development of 3921‐fold resistance to spinosad as compared to the susceptible strain. The spinosad‐resistant strain of S. litura had a relatively high fitness cost (0.17) as compared to the susceptible strain. Furthermore, the lethal and sub‐lethal effects of different concentrations of spinosad were checked on the susceptible strain at different levels; i.e., LC40, LC30, LC20 and LC10, which revealed that the impact of spinosad on the life‐history traits of S. litura increased with the increase in concentration of spinosad. A significant impact of spinosad was recorded on the larval duration, pre‐pupal weight, pupal duration, pupal weight, reproductive potential and adult emergence. The outcomes of the current research clearly indicate that fitness cost of spinosad and its sub‐lethal effects have a significant impact on population dynamics of S. litura, for which it can be incorporated in integrated pest management.
Adeel Ikram,Ahmad Raza,Hyun Chung 대한용접·접합학회 2020 대한용접·접합학회지 Vol.38 No.3
This study was performed to investigate the AC-GMAW process for joining of 6 ㎜ to 8 ㎜ thick AH36 steel plates in a single pass welding using a square groove butt joint configuration. A broad range of experiments was conducted at different welding speeds and joint gaps. Initially, a suitable setting of welding speed and the joint gap was determined based on the results of penetration depth and the gap bridging ability of the welded joints. Then, the quality of the selected welded joints was examined by hardness and tensile testing. Microstructure and fractured surface analysis were carried out using scanning electron microscopy (SEM) to examine the surface morphology. Based on the experimental findings, recommendations were made for selecting suitable input welding parameters for the welding of plates up to 8 ㎜ using the AC-GMAW process.
A Survey of GSM Technology to Control Remote Devices
Adeel Amin,M. N. A. Khan 보안공학연구지원센터 2014 International Journal of u- and e- Service, Scienc Vol.7 No.6
This work describes the different design and implementation of a GSM based remote systems. All existing systems either use GSM or GPRS technologies; however, GSM is the basic way of communication. Due to global GSM roaming facility and good network capability, there is virtually no requirement to build additional network. GSM based SMS services are very cheap and affordable; therefore transmission of data based on SMS in real-time applications has become very popular. GPRS data transmission speed is much faster than normal text message, approx 28 to 32 SMS per/min may be achieve over GPRS. This study explores different tools and technique being used to control communication network through SMS. We also critically review the merit and demerit of various existing solutions. The results of the study are reported in this paper.
A comprehensive in silico analysis of sortase superfamily
Adeel Malik,Seung Bum Kim 한국미생물학회 2019 The journal of microbiology Vol.57 No.6
Sortases are cysteine transpeptidases that assemble surface proteins and pili in their cell envelope. Encoded by all Grampositive bacteria, few Gram-negative bacteria and archaea, sortases are currently divided into six classes (A-F). Due to the steep increase in bacterial genome data in recent years, the number of sortase homologues have also escalated rapidly. In this study, we used protein sequence similarity networks to explore the taxonomic diversity of sortases and also to evaluate the current classification of these enzymes. The resultant data suggest that sortase classes A, B, and D predominate in Firmicutes and classes E and F are enriched in Actinobacteria, whereas class C is distributed in both Firmicutes and Actinobacteria except Streptomyces family. Sortases were also observed in various Gram-negatives and euryarchaeota, which should be recognized as novel classes of sortases. Motif analysis around the catalytic cysteine was also performed and suggested that the residue at 2nd position from cysteine may help distinguish various sortase classes. Moreover, the sequence analysis indicated that the catalytic arginine is highly conserved in almost all classes except sortase F in which arginine is replaced by asparagine in Actinobacteria. Additionally, class A sortases showed higher structural variation as compared to other sortases, whereas inter-class comparisons suggested structures of class C and D2 exhibited best similarities. A better understanding of the residues highlighted in this study should be helpful in elucidating their roles in substrate binding and the sortase function, and successively could help in the development of strong sortase inhibitors.
Adeel Ikram,Nadeem Ahmad Mufti1,Muhammad Qaiser Saleem,Ahmed Raza Khan 대한기계학회 2013 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.27 No.7
This paper reports the effect and optimization of eight control factors on material removal rate (MRR), surface roughness and kerf in wire electrical discharge machining (WEDM) process for tool steel D2. The experimentation is performed under different cutting conditions of wire feed velocity, dielectric pressure, pulse on-time, pulse off-time, open voltage, wire tension and servo voltage by varying the material thickness. Taguchi’s L18 orthogonal array is employed for experimental design. Analysis of variance (ANOVA) and signal-tonoise (S/N) ratio are used as statistical analyses to identify the significant control factors and to achieve optimum levels respectively. Additionally, linear regression and additive models are developed for surface roughness, kerf and material removal rate (MRR). Results of the confirmatory experiments are found to be in good agreement with those predicted. It has been found that pulse on-time is the most significant factor affecting the surface roughness, kerf and material removal rate.