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RISS 인기검색어
- 검색키워드
- 저자 : Jahangir Alam (검색결과 24 건)
- 무료
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- 유료
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Effects of Tannery Wastes on the Fattening of Growing Cattle, Carcass, and Meat Quality
Jahangir Alam,남기창,이상석,Mufazzal Hossain,Anwarul Haque Beg 한국축산식품학회 2010 한국축산식품학회지 Vol.30 No.2
The present study was conducted to determine the effect of tannery waste protein concentrate (TWPC) on fattening of cattle and the carcass and meat quality, with the aim of replacing the costly commercial protein concentrate (Jasoprot) with a more economical and effective alternative. Twelve young cattle (six male and six female) were fed during the study period on a control diet (T1) with 10% Jasoprot and on two test diets: 5% TWPC + 5% Jasoprot (T2) and 10% TWPC (T3). The test diets significantly affected (p<0.05) live weight gain and profitability compared to the control diet, perhaps due to the increased protein and essential amino acid content, relative to Jasoprot. TWPC was free of aflatoxin. Sensory-evaluated organoleptic scores did not differ among the groups. Chemical composition was normal as other beef and was non toxic especially within recommended chromium level (1.90±0.6 μg). Total lipid contents were higher (p<0.05) in T3, and moisture, ash and crude protein contents were almost similar (p>0.05) among the three groups. It is concluded that TWPC or an equal mixture of TWPC and Jasoprot may be an economic and efficient alternative protein source to Jasoprot in the cattle industry, which minimizes adverse effects on carcass and sensory meat quality.
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Jahangir Alam,김두기,최병한 국제구조공학회 2017 Structural Engineering and Mechanics, An Int'l Jou Vol.63 No.1
The fundamental goal of this study is to minimize the uncertainty of the median fragility curve and to assess the structural vulnerability under earthquake excitation. Bayesian Inference with Markov Chain Monte Carlo (MCMC) simulation has been presented for efficient collapse response assessment of the independent intake water tower. The intake tower is significantly used as a diversion type of the hydropower station for maintaining power plant, reservoir and spillway tunnel. Therefore, the seismic fragility assessment of the intake tower is a pivotal component for estimating total system risk of the reservoir. In this investigation, an asymmetrical independent slender reinforced concrete structure is considered. The Bayesian Inference method provides the flexibility to integrate the prior information of collapse response data with the numerical analysis results. The preliminary information of risk data can be obtained from various sources like experiments, existing studies, and simplified linear dynamic analysis or nonlinear static analysis. The conventional lognormal model is used for plotting the fragility curve using the data from time history simulation and nonlinear static pushover analysis respectively. The Bayesian Inference approach is applied for integrating the data from both analyses with the help of MCMC simulation. The method achieves meaningful improvement of uncertainty associated with the fragility curve, and provides significant statistical and computational efficiency.
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Seismic risk assessment of intake tower in Korea using updated fragility by Bayesian inference
Jahangir Alam,김두기,최봉한 국제구조공학회 2019 Structural Engineering and Mechanics, An Int'l Jou Vol.69 No.3
This research aims to assess the tight seismic risk curve of the intake tower at Geumgwang reservoir by considering the recorded historical earthquake data in the Korean Peninsula. The seismic fragility, a significant part of risk assessment, is updated by using Bayesian inference to consider the uncertainties and computational efficiency. The reservoir is one of the largest reservoirs in Korea for the supply of agricultural water. The intake tower controls the release of water from the reservoir. The seismic risk assessment of the intake tower plays an important role in the risk management of the reservoir. Site-specific seismic hazard is computed based on the four different seismic source maps of Korea. Probabilistic Seismic Hazard Analysis (PSHA) method is used to estimate the annual exceedance rate of hazard for corresponding Peak Ground Acceleration (PGA). Hazard deaggregation is shown at two customary hazard levels. Multiple dynamic analyses and a nonlinear static pushover analysis are performed for deriving fragility parameters. Thereafter, Bayesian inference with Markov Chain Monte Carlo (MCMC) is used to update the fragility parameters by integrating the results of the analyses. This study proves to reduce the uncertainties associated with fragility and risk curve, and to increase significant statistical and computational efficiency. The range of seismic risk curve of the intake tower is extracted for the reservoir site by considering four different source models and updated fragility function, which can be effectively used for the risk management and mitigation of reservoir.
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Effects of Tannery Wastes on the Fattening of Growing Cattle, Carcass, and Meat Quality
Alam, Jahangir,Hossain, Mufazzal,Beg, Anwarul Haque,Nam, Ki-Chang,Lee, Sang-Suk Korean Society for Food Science of Animal Resource 2010 한국축산식품학회지 Vol.30 No.2
The present study was conducted to determine the effect of tannery waste protein concentrate (TWPC) on fattening of cattle and the carcass and meat quality, with the aim of replacing the costly commercial protein concentrate (Jasoprot) with a more economical and effective alternative. Twelve young cattle (six male and six female) were fed during the study period on a control diet (T1) with 10% Jasoprot and on two test diets: 5% TWPC + 5% Jasoprot (T2) and 10% TWPC (T3). The test diets significantly affected (p<0.05) live weight gain and profitability compared to the control diet, perhaps due to the increased protein and essential amino acid content, relative to Jasoprot. TWPC was free of aflatoxin. Sensory-evaluated organoleptic scores did not differ among the groups. Chemical composition was normal as other beef and was non toxic especially within recommended chromium level ($1.90{\pm}0.6{\mu}g$) Total lipid contents were higher (p<0.05) in T3, and moisture, ash and crude protein contents were almost similar (p>0.05) among the three groups. It is concluded that TWPC or an equal mixture of TWPC and Jasoprot may be an economic and efficient alternative protein source to Jasoprot in the cattle industry, which minimizes adverse effects on carcass and sensory meat quality.
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A Parametric Study of Anchored Earth Wall by Finite Element Method
Md. Jahangir Alam,Md. Saiful Alam Siddiquee 대한토목학회 2014 KSCE Journal of Civil Engineering Vol.18 No.7
A parametric study using finite element method of analysis was undertaken to investigate the behavior of an anchored earth wall system supporting clay backfill. In this paper the effects of stiffness of reinforcing tendon, elastic modulus of backfill soil, elastic modulus of retained soil and anchor size on the behavior of the wall system are presented. It was observed that deformation of wall decreases with increasing stiffness of reinforcement and above certain value of stiffness it has no effect on deformation. Most important finding was that coefficient of lateral earth pressure depends on the stiffness of reinforcement. For extensible reinforcements (axial strain > 1%), coefficient of lateral earth pressure is less than that of an active pressure condition. Deformation decreases with increasing stiffness of backfill and retained soil. Anchor force also decreases with increasing stiffness of backfill but remains constant with the variation of stiffness of the retained soil. It was also concluded that anchor block may be designed for a factor of safety of 2 or more.
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Sikh and CaoDai Understandings of Interfaith Harmony: Promoting a Culture of Peace and Understanding
Mohammad Jahangir ALAM,Injamam Mahbub MOJUMDER DAOS(The Daesoon Academy of Sciences) 2023 Journal of Daesoon Thought and the Religions of Ea Vol.3 No.1
The concept of interfaith harmony is one of the key issues for discussion in this contemporary world. It has multifaceted implications that range from pedagogical realms to global policy making. Here we focus on the basic concepts of interfaith harmony from Sikh and Cao Dai perspectives in order to address their viewpoints in regard to promoting culture of Peace and Understanding. Although these religions are new as compared to the existing living religions of the world, they found their new identity in the history of world religions for their unique concepts of interfaith harmony. In this article, the concept of interfaith harmony has been analyzed from two perspectives such as theological and socio-historical. For a systematic understanding of the subject matter, it has been categorized into three subpoints; unity of God, unity of religions and unity of humanity. Methodologically, the qualitative methodological framework of the proposed research is descriptive in nature. Thus, the present research has been primarily conducted by using secondary sources, although the crucial information is collected from primary sources such as the sacred texts of Sikhism and Caodaism. Since this study is done considering the social, political and religious contexts of India and Vietnam, it can contribute to the understanding of the nature of interfaith harmony in South and South-East Asia.
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Effects of Tannery Wastes on the Fattening of Growing Cattle, Carcass, and Meat Quality
Md. Jahangir Alam,Md. Mufazzal Hossain,Md. Anwarul Haque Beg,Ki Chang Nam,Sang Suk Lee 한국축산식품학회 2010 한국축산식품학회지 Vol.30 No.2
The present study was conducted to determine the effect of tannery waste protein concentrate (TWPC) on fattening of cattle and the carcass and meat quality, with the aim of replacing the costly commercial protein concentrate (Jasoprot) with a more economical and effective alternative. Twelve young cattle (six male and six female) were fed during the study period on a control diet (T1) with 10% Jasoprot and on two test diets: 5% TWPC + 5% Jasoprot (T2) and 10% TWPC (T3). The test diets significantly affected (p<0.05) live weight gain and profitability compared to the control diet, perhaps due to the increased protein and essential amino acid content, relative to Jasoprot. TWPC was free of aflatoxin. Sensory-evaluated organoleptic scores did not differ among the groups. Chemical composition was normal as other beef and was non toxic especially within recommended chromium level (1.90±0.6 μg). Total lipid contents were higher (p<0.05) in T3, and moisture, ash and crude protein contents were almost similar (p>0.05) among the three groups. It is concluded that TWPC or an equal mixture of TWPC and Jasoprot may be an economic and efficient alternative protein source to Jasoprot in the cattle industry, which minimizes adverse effects on carcass and sensory meat quality.
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Md Jahangir Alam The Pacific Early Childhood Education Research Ass 2022 Asia-Pacific journal of research in early childhoo Vol.16 No.2
Universally, Early Childhood Education (ECE) received considerable attention among the stakeholders, and multiple international studies have emphasized the critical nature of the high-quality ECE facilities that integrate learning and play. Several studies have demonstrated the positive influence of decent learning environments on prospects and the comprehensive development of children. This research focuses on play-based learning through gamification to characterize the excellent ECE environments and provide the importance of play-based learning in Bangladesh. This case study research focuses on the necessities of play-based learning in Bangladesh for ECE development, considering the Japanese experience. This study shows that the absence of children s play and play-based learning in Bangladesh is due to a lack of government policy initiatives and parental socioeconomic situations. A theoretical analysis has been included through Vygotsky’s sociocultural approach to understanding the necessities of play-based learning for the welfare of children in Bangladesh. The findings show that the government policy formulation and stakeholders’ engagement might create the opportunity for establishing play-based learning in ECE.
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