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珠江口盆地西部文昌A凹陷断裂特征与成因探讨

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海洋地质与第四纪地质 2020年第4期40卷 96-106页

作者：张豪栾锡武冉伟民王阔魏新元石艳锋 Mohammad saiful islam 王嘉中国石油大学(华东) 青岛266580 中国地质调查局青岛海洋地质研究所青岛266071 青岛海洋科学与技术试点国家实验室海洋矿产资源评价与探测技术功能实验室青岛266237 山东科技大学青岛266590 达卡大学孟加拉达卡1000 中国海洋大学青岛266100

在前人勘探解释的基础上,通过三维高分辨率地震资料,应用相干属性分析等技术对区域断裂进行精细化解释.研究表明盆地内发育着典型的犁式、花状构造、旋转正断层等伸展构造样式,在珠三南断裂影响下,南部边界断裂以阶梯状排列形成断阶构造... 详细信息

在前人勘探解释的基础上,通过三维高分辨率地震资料,应用相干属性分析等技术对区域断裂进行精细化解释.研究表明盆地内发育着典型的犁式、花状构造、旋转正断层等伸展构造样式,在珠三南断裂影响下,南部边界断裂以阶梯状排列形成断阶构造.始新世—中中新世,断裂走向在持续右旋张扭应力场下以NE→EW→NWW顺时针方向旋转,张裂强度逐渐减弱.晚始新世—早渐新世,盆地在太平洋板块俯冲后退、印亚板块碰撞、古南海向南俯冲下发育EW向断裂,晚渐新世在南海扩张事件影响下前期右旋应力场得到加强,形成大量近EW向断裂,中新世后演化为NWW向断裂.文昌A凹陷断裂构造的演化、成因机制与南海北部陆缘应力场变化一致.该研究有利于进一步了解南海北部陆缘含油气盆地的构造特征和演化规律,提高油气勘探开发的效率.

关键词：断裂体系断层活动性应力场变化珠江口盆地文昌A凹陷

Feasibility Study of RNPP (Rooppur Nuclear Power Project) in Bangladesh

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Energy and Power Engineering 2013年第4期5卷 1526-1530页

作者： Tausif Ali Iftekhar Zaman Arnab saiful islam Bhuiyan Anik , Rahman Iftekhar Hossain M. Shidujaman Dept. of Electrical and Electronic Engineering American International University-Bangladesh Dhaka Bangladesh

Bangladesh is densely populated country with a population of 16 core and small area about 1, 47,570 Square-Kilometer. Among these large population only a few section are taking the blessings of power. But now at a stage government can’t give the power even to that special section. Because day by day population is increasing and also power demands is also increasing. Governments are trying to meet up the power crisis in Bangladesh by taking various steps. Like small (10-20MW) power plants, IPP, Rental power plant etc. But these are not a permanent solution. More over these rental and IPP are mainly oil and gas based, which are very costly and not very efficient. Besides these government are going with coal based power station and small scale renewable energy. But coal based power station are required very large space, its initial cost is high and create serious environmental threat. Renewable energy is not yet developed and its efficiency is very poor. Though there are many problems and threats but Nuclear Power Plant can be a permanent solution for Bangladesh. Bangladesh government is now going for nuclear power plant and recently they have taken a project called Rooppur Nuclear Power Plant Project (RNPP) which is already approved in the cabinet meeting. The purpose of this paper is to study the feasibility of RNPP.

关键词： Bangladesh Nuclear Power Roopppur Reactor Radioactive Pwr Bwr Desaster Uranium Security Planning Development

Effect of Seeding Density on Mat-Type Seedling Quality for Mechanical Transplanting in Dry Season Rice

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Agricultural Sciences 2021年第11期12卷 1231-1243页

作者： Nilufar Yasmin Shaikh Md. Ashraful Alam Mohammad Kamruzzaman Md. Abdullah Al Mamun AKM saiful islam Biotechnology Division Bangladesh Rice Research Institute (BRRI) Gazipur Bangladesh Farm Machinery and Post-Harvest Technology Division Bangladesh Rice Research Institute (BRRI) Gazipur Bangladesh Agricultural Statistics Division Bangladesh Rice Research Institute (BRRI) Gazipur Bangladesh

Rice transplanting with a transplanter is a cost-effective process. Due to labor shortages during the peak time of rice transplanting, it is a promising technology in Bangladesh. However, the high-quality mat-type seedling is a prerequisite factor for mechanical transplanting. The experiments were conducted at three different locations (Gazipur, Tangail, and Rangpur) during the dry season (Boro)/2019-20 to determine the best seeding density for high-quality mat-type seedlings to be prepared for mechanical rice transplanters. The effects of seeding rate on seedling quality such as survival rate, seedling strength, stem thickness of newly released boro rice varieties BRRI dhan86, BRRI dhan89, and BRRI dhan92 were studied using four seeding rates (130, 140, 150, 160 g/tray). Results revealed that BRRI dhan92 showed quick seedling emergence compared to BRRI dhan89 and BRRI dhan86. Seedling mortality was found the lowest BRRI dhan92 while the highest in BRRI dhan86. 25 - 30 days old seedling was found suitable for mechanical transplanting in terms of seedling mortality. Seedling height increased with the increase in seed density. BRRI dhan92 showed the highest stem thickness followed by BRRI dhan89 and BRRI dhan86 with seed rate 150 - 160 g per tray. The suitable seeding rate (150 - 160 g/tray) for the studied varieties was found better for raising mat-type seedlings suitable for mechanical transplanting, which could coordinate the production of larger population growth and higher harvest index to achieve high grain yield.

关键词： Rice Seed Density Mortality Seedling Age Stem Thickness Seedling Strength

Comparison of Propofol and Fentanyl for Preventing Emergence Agitation Following Sevoflurane Anesthesia in Pediatric Patients: A Single-Center Study in Bangladesh

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Pharmacology & Pharmacy 2024年第6期15卷 223-235页

作者： Md. saiful islam Khan Md. Abir Tazim Chowdhury Farzana Fardousi Munama Magdum Md. Ahaduzzaman Taneem Mohammad Shamima Akter Suriya Akter Md. saiful islam Azad Md. Mozaffer Hossain M. Abdur Rahman Department of Cardiothoracic Anesthesia Evercare Hospital Dhaka Bangladesh Department of Cardiothoracic and Vascular Surgery Evercare Hospital Dhaka Bangladesh Department of Pathology National Institute of Cancer Research & Hospital Dhaka Bangladesh Department of Preventive and Social Medicine National Institute of Preventive and Social Medicine Dhaka Bangladesh Department of Anesthesia Sheikh Sayera Khatun Medical College Gopalgonj Bangladesh Department of Anesthesia Dhaka Medical College Dhaka Bangladesh Department of Anesthesia Combined Military Hospital Dhaka Bangladesh Department of Cardiac Anesthesia National Institute of Cardiovascular Disease Dhaka Bangladesh Department of Anesthesia Bangladesh Medical College Dhaka Bangladesh

Background: Emergence agitation (EA) is a common phenomenon observed in pediatric patients following general anesthesia. This study aimed to assess the efficacy of propofol and fentanyl in preventing EA and to compare their associated complications or side effects. Methods: This prospective randomized observational comparative study was conducted at Dhaka Medical College Hospital from July 2013 to June 2014. The study aimed to evaluate the effects of propofol and fentanyl on EA in children aged 18 to 72 months undergoing circumcision, herniotomy, and polypectomy operations. Ninety children were included in the study, with 45 in each group. Patients with psychological or neurological disorders were excluded. Various parameters including age, sex, weight, American Society of Anesthesiologists (ASA) class, duration of anesthesia, Saturation of Peripheral Oxygen (SPO2), heart rate (HR), respiratory rate (RR), Pediatric Anesthesia Emergence Delirium (PAED) score, duration of post-anesthesia care unit (PACU) stay, incidence of laryngospasm, nausea, vomiting, and rescue drug requirement were compared between the two groups. Results: Age, sex, weight, ASA class, and duration of anesthesia were comparable between the two groups. Perioperative SpO2 and HR were similar in both groups. However, the PAED score was significantly higher in the fentanyl group during all follow-ups except at 30 minutes postoperatively. The mean duration of PACU stay was significantly longer in the fentanyl group. Although the incidence of laryngospasm was higher in the fentanyl group, it was not statistically significant. Conversely, nausea or vomiting was significantly higher in the fentanyl group. The requirement for rescue drugs was significantly higher in the fentanyl group compared to the propofol group. Conclusion: Both propofol and fentanyl were effective in preventing emergence agitation in pediatric patients undergoing various surgical procedures under sevoflurane anesthesia. However, propo

关键词： Emergence Agitation (EA) General Anesthesia Propofol Fentanyl Pediatric Patients Pediatric Anesthesia Emergence Delirium (PAED) Score Bangladesh

桉树精油及其活性物质对干鱼害虫白腹皮蠹的熏蒸毒性(英文)

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昆虫学报 2009年第1期52卷 110-115页

作者： saiful islam 安静杰张士昶 Mahbub HASAN 雷朝亮华中农业大学植物科技学院湖北省害虫可持续治理与昆虫资源重点实验室武汉430070 Laboratory for Stored Products Protection Department of ZoologyRajshahi UniversityRajshahi-6205Bangladesh

为了评估桉树精油和α--蒎烯对白腹皮蠹Dermestes maculatus Degeer的杀虫作用,采用生测方法测定了不同剂量和不同处理时间下,其幼虫和成虫的死亡率。结果表明:用桉树精油及其活性成分α-蒎烯处理白腹皮蠹成虫和幼虫后,可显著影响其死亡... 详细信息

为了评估桉树精油和α--蒎烯对白腹皮蠹Dermestes maculatus Degeer的杀虫作用,采用生测方法测定了不同剂量和不同处理时间下,其幼虫和成虫的死亡率。结果表明:用桉树精油及其活性成分α-蒎烯处理白腹皮蠹成虫和幼虫后,可显著影响其死亡率(P<0.001)。白腹皮蠹的反应因化学物种类、剂量和暴露时间不同而异。当剂量为32μL/cm3的桉树精油处理白腹皮蠹幼虫72h后,死亡率可超过90%。同样的剂量对其成虫熏蒸72h后也表现高毒。在相同的剂量和相同的暴露时间下,α-蒎烯对白腹皮蠹的成虫和幼虫也表现高毒,且成虫的抗性比幼虫强。Probit检验结果表明桉树精油比α-蒎烯更有效。以上结果说明这些天然产物对白腹皮蠹种群的控制是很有用的。

关键词：桉树精油 α-蒎烯熏蒸成虫幼虫干鱼

Mechanical Eye Trauma Epidemiology, Prognostic Factors, and Management Controversies—An Update

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Open Journal of Ophthalmology 2021年第4期11卷 348-363页

作者： Sharah Rahman Ava Hossain Sarwar Alam Anisur Rahman Chandana Sultana saiful islam Yusuf Jamal Khan Md. Amiruzzaman Bangladesh Eye Hospital and Institute Dhaka Bangladesh OSB Eye Hospital Dhaka Bangladesh Ispahani islamia Eye Institute and Hospital Dhaka Bangladesh Dhaka Medical College and Hospital Dhaka Bangladesh

Purpose of Review: The management of eye injuries is both difficult and argumentative. This study attempts to highlight the management of ocular trauma using currently available information in the literature and author experience. This review presents a workable framework from the first presentation, epidemiology, classification, investigations, management principles, complications, prognostic factors, final visual outcome and management debates. Review Findings: Mechanical ocular trauma is a leading cause of monocular blindness and possible handicap worldwide. Among several classification systems, the most widely accepted is Birmingham Eye Trauma Terminology (BETT). Mechanical ocular trauma is a topic of unsolved controversy. Patching for corneal abrasion, paracentesis for hyphema, the timing of cataract surgery and intraocular lens implantation are all issues in anterior segment injuries. Regarding posterior segment controversies, the timing of vitrectomy, use of prophylactic cryotherapy, the necessity of intravitreal antibiotics in the absence of infection, the use of vitrectomy vs vitreous tap in traumatic endophthalmitis is the issues. The pediatric age group needs to be approached by a different protocol due to the risk of amblyopia, intraocular inflammation, and significant vitreoretinal adhesions. The various prognostic factors have a role in the final visual outcome. B scan is used to exclude R.D, Intraocular foreign body (IOFB), and vitreous haemorrhage in hazy media. Individual surgical strategies are used for every patient according to the classification and extent of the injuries. Conclusion: This article examines relevant evidence on the management challenges and controversies of mechanical trauma of the eye and offers treatment recommendations based on published research and the authors’ own experience.

关键词： Mechanical Eye Trauma Bermingham Eye Trauma Terminology Prognostic Factors for Mechanical Trauma Epidemiology of Mechanical Eye Injury Open Globe Injuries (OGI) Ocular Trauma Scoring (OTS) Classification and Regression Tree (CART) Model Update of Mechanical Eye Trauma Classification of Ocular Trauma Controversies of Ocular Trauma Challenges in Ocular Trauma Management

Farmers’ Knowledge on Climate Change Effects in Agriculture

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Agricultural Sciences 2019年第3期10卷 386-394页

作者： Md. saiful islam Muhammad Humayun Kabir Md. Sekender Ali Mst. Sharmin Sultana Mohammad Mahasin Department of Agricultural Extension and Information System Sher-e-Bangla Agricultural University Dhaka Bangladesh

The major objectives of the study were to determine farmers’ knowledge on climate change effects in agriculture and to identify the factors that influenced farmers’ knowledge on climate change effects in agriculture. The study was conducted in four villages under Kazipur upazila of Sirajgonj district. Data were collected by using interview schedule from randomly selected 113 respondents during 1st January to 30th January, 2018. The findings revealed that an overwhelming majority (78.8%) of the respondents had medium to high knowledge on climate change effects in agriculture. Among eight selected characteristics, extension media contact, training received, organizational participation, and cosmopoliteness had significant positive contribution to the farmers’ knowledge on climate change effects in agriculture. It is recommended that to increase farmers’ knowledge on climate change effects initiative should be taken to improve farmers’ knowledge through more involving with organization, extension media and program.

关键词： Farmers Knowledge Climate Change Agriculture Bangladesh

Carbon-coated manganese dioxide nanoparticles and their enhanced electrochemical properties for zinc-ion battery applications

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Journal of Energy Chemistry 2017年第4期26卷 815-819页

作者： saiful islam Muhammad Hilmy Alfaruqi Jinju Song Sungjin Kim Duong Tung Pham Jeonggeun Jo Seokhun Kim Vinod Mathew Joseph Paul Baboo Zhiliang Xiu Jaekook Kim Department of Materials Science and Engineering Chonnam National University300 Yongbong-dongBukguGwangju 61186Republic of Korea

In this study, we report the cost-effective and simple synthesis of carbon-coated α-MnOnanoparticles(α-MnO@C) for use as cathodes of aqueous zinc-ion batteries(ZIBs) for the first time. α-MnO@C was prepared via a gel formation, using maleic acid(CHO) as the carbon source, followed by annealing at low temperature of 270 °C. A uniform carbon network among the α-MnOnanoparticles was observed by transmission electron microscopy. When tested in a zinc cell, the α-MnO@C exhibited a high initial discharge capacity of 272 m Ah/g under 66 m A/g current density compared to 213 m Ah/g, at the same current density, displayed by the pristine sample. Further, α-MnO@C demonstrated superior cycleability compared to the pristine samples. This study may pave the way for the utilizing carbon-coated MnOelectrodes for aqueous ZIB applications and thereby contribute to realizing high performance eco-friendly batteries.

关键词： Carbon coating Manganese dioxide Zinc-ion battery Electrochemical properties

Incidence, Mortality, and Epidemiology of Leukemia in South Asia: An Ecological Study

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Open Journal of Epidemiology 2023年第1期13卷 73-82页

作者： Rakibul Hasan Rifat Md. Shah Poran saiful islam Anika Tabassum Sumaya Md. Mozahidul Alam Md Rashedur Rahman Bangladesh Health Research Initiative Mirpur Dhaka Bangladesh Department of Pharmacy Primeasia University Banani Dhaka Bangladesh Department of Pharmacy Jahangirnagar University Savar Dhaka Bangladesh

Background: Nowadays cancer is a buzzword in every corner of the world. Back a few decades, cancer was not that much known to the people of South Asia let alone known of Leukemia. Many countries in the South Asian region are designated as developing countries. Hence, the deficiency of diagnosis system, treatment, management, and lack of knowledge about leukemia in this region are major problems. Therefore, the incidence rate, mortality rate, and several deaths are increasing day by day. Methods: This cross-sectional study is aimed to investigate the incidence and mortality of leukemia in South Asian Countries for the year 2020 by acquiring data from the global cancer project (GLOBOCAN2020) accessible at https://***. Results: In South Asia, 1,733,573 cancer cases were documented in 2020 where 62,163 cases were leukemia related. The highest incidence rate was reported in Pakistan (4.3 in 1,000,000) and Sri Lanka (4.1 in 1,000,000) and the lowest in Bangladesh (1.8 in 1,000,000) and Nepal (2.0 in 1,000,000). On the other hand, 1,124,875 death had been reported in 2020, where 45,707 (4.1%) death was associated with leukemia. Pakistan (3.4 in 1,000,000) and Maldives (3.1 in 1,000,000) had the highest death and lowest in Bangladesh (1.4 in 1,000,000) and Nepal (1.5 in 1,000,000). Adults aged from 60 - 85 years old have the highest rate of incidence and mortality rate in all countries except Nepal. Conclusions: Leukemia is one of the major concerning cancer of all ages people in South Asia, the situation and related risk factors information can be helpful to reduce death through proper treatment.

关键词： Leukemia Blood Cancer South Asia Incidence Mortality Epidemiology