Jessore University of Science & Technology

About: Jessore University of Science & Technology is a based out in . It is known for research contribution in the topics: Adsorption & Population. The organization has 811 authors who have published 974 publications receiving 10471 citations.

Recent advancements and opportunities of decorated graphitic carbon nitride toward solar fuel production and beyond

Abstract: Recent advances have revealed the potentials of rationally designed graphitic carbon nitride (g-C3N4) for the photocatalytic H2 evolution reaction due to its unique morphological structure and appealing electronic and physicochemical properties. In this review, we introduce the basic principles of the photocatalytic overall water splitting, the advantages and challenges of g-C3N4-based photocatalysts. The unique electronic, crystal structure, surface physicochemical, and adsorption properties of g-C3N4-based photocatalysts are discussed to provide insightful prospects on charge dynamics. This is followed by a comprehensive overview of the recent developments of g-C3N4 for photocatalytic reactions, particularly focusing on various tailoring strategies, which include: (1) heterojunction design, g-C3N4/semiconductor heterojunction, Z-scheme heterojunction, and g-C3N4/metal heterojunction (cocatalyst), (2) functionality design at the atomic level, such as elemental doping, and (3) nanostructure architecting by tuning the dimensionality of g-C3N4 that affects photoactivity. In addition, some fundamental issues and challenges in each of the aforementioned strategies are also highlighted. The advancements of the photo-redox applications toward water splitting, CO2 photoreduction, and N2 photo-fixation are also presented. This review is expected to provide impactful guidelines and ideas to readers in this field on the development of g-C3N4. Moreover, it is a useful information for the development of future design strategies.

Present status of Bangladesh gas fields and future development: A review

Abstract: Natural gas, played vital role as main energy source to the rapid development of Bangladesh, production and consumption has been increased drastically during last decades. Geological and geophysical explorations have identified significant quantities of natural gas reserves in Bangladesh. Proper reservoir characterization is very important in estimating the actual amount of gas reserve. Fortunately, there are 27 gas fields in Bangladesh till now. In 1993, the initial estimated recoverable gas reserve was around 12.43 TCF. The amount became around 26.84 TCF by 2011 and finally grew to 27.12 TCF at the end of 2017. From this amount, around 15.22 TCF gas has already been produced. So, the remaining 12 TCF gas can be used for future use. Moreover, it is projected that the country would be able to fulfill the growing demand of natural gas for the next 10–12 years with the remaining gas reserve. It is therefore an urgent need to increase the amount of gas reserve. To discover a new gas field would contribute significantly to the total gas reserve but it is time taking and cumbersome. An alternative and effective way is to the development of existing gas fields to increase the gas reserve termed as “reserve growth”. It is evident that reassessment of reservoir properties with latest techniques would increase the amount of gas reserve significantly. This study thus finds that reassessment of reservoirs characteristics in Bangladesh gas fields can be done using new techniques such as detailed digital reservoir characterization technique which might increase the total gas reserve.

On Secrecy Performance of Mixed Generalized Gamma and Málaga RF-FSO Variable Gain Relaying Channel

Abstract: The emergence of an array of new wireless networks has led researchers to evaluate the prospect of utilizing the physical properties of the wireless medium in order to design secure systems. In this paper, the physical layer secrecy performance of a mixed radio frequency-free space optical (RF-FSO) system with variable gain relaying scheme is investigated in the presence of an eavesdropper. We assume that the eavesdropper can wiretap the transmitted confidential data from the RF link only. It is further assumed that the main and eavesdropper RF links are modeled as generalized Gamma (GG) fading channel, and the free space optical (FSO) link experiences Malaga turbulence with pointing error impairment. Our primary concern is to protect this confidential information from being wiretapped. Besides pointing error, the atmospheric turbulence and two types of detection techniques (i.e. heterodyne detection and intensity modulation with direct detection) are also taken into consideration. Utilizing amplify-and-forward (AF) scheme, the novel mathematical closed-form expressions for average secrecy capacity, lower bound of secrecy outage probability, and strictly positive secrecy capacity are derived. As both the links (RF and FSO) undergo generalized fading channels, the derived expressions are also general. We present a unification of some existing works utilizing the proposed model to better clarify the novelty of this work. Finally, all the derived expressions are justified via Monte-Carlo simulations.

Household factors and electrical peak demand : a review for further assessment.

Abstract: At least one-third of the total electricity generation of a country is consumed by the residential sector, which is one of the most unpredictable consumer groups with respect to electricity usage a...

Long Noncoding RNA UCA1 in Gastrointestinal Cancers: Molecular Regulatory Roles and Patterns, Mechanisms, and Interactions

Abstract: The rising trend of gastrointestinal (GI) cancer has become a global burden due to its aggressive nature and poor prognosis. Long noncoding RNAs (lncRNAs) have recently been reported to be overexpressed in different GI cancers and may contribute to cancer progression and chemoresistance. They are featured with more than 200 nucleotides, commonly polyadenylated, and lacking an open reading frame. LncRNAs, particularly urothelial carcinoma-associated 1 (UCA1), are oncogenes involved in regulating cancer progression, such as cell proliferation, invasion, migration, and chemoresistance, particularly in GI cancer. This review was aimed to present an updated focus on the molecular regulatory roles and patterns of lncRNA UCA1 in progression and chemoresistance of different GI cancers, as well as deciphering the underlying mechanisms and its interactions with key molecules involved, together with a brief presentation on its diagnostic and prognostic values. The regulatory roles of lncRNA UCA1 are implicated in esophageal cancer, gastric cancer, pancreatic cancer, hepatobiliary cancer, and colorectal cancer, where they shared similar molecular mechanisms in regulating cancer phenotypes and chemoresistance. Comparatively, gastric cancer is the most intensively studied type in GI cancer. LncRNA UCA1 is implicated in biological roles of different GI cancers via interactions with various molecules, particularly microRNAs, and signaling pathways. In conclusion, lncRNA UCA1 is a potential molecular target for GI cancer, which may lead to the development of a novel chemotherapeutic agent. Hence, it also acts as a potential diagnostic and prognostic marker for GI cancer patients.