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Challenges of Groundwater Development and Supply in the Niger Delta, Nigeria

Journal of Water Resource and Protection 2023年第6期15卷 247-275页

作者： Ifeyinwa L. Nwankwo Tamunoene K. S. Abam Ferdinand D. Giadom Groundscan Services Nigeria Limited Lydia Abam Lane Trans-Amadi Port Harcourt Nigeria institute of Geosciences and Environmental Management Rivers State University Port Harcourt Nigeria Department of Geology University of Port Harcourt Choba Nigeria

Some problems of groundwater development in the Niger Delta ranging from negligence to geological peculiarities are examined to highlight the importance and application of geologic knowledge and research for decision making and averting failure in groundwater development for provisional use. Although the geology and hydrogeologic properties of the aquifer system in the Niger Delta immensely favors groundwater development, there are several recorded cases of failed groundwater development projects poor water quality, dry boreholes and boreholes with surprisingly low yield which could have been avoided. This is due to the perception that since groundwater is prolific, geologic and locational peculiarities can be ignored. This research has highlighted the importance of the knowledge of the hydrogeology of the different geologic units as significant factor in the success of groundwater projects through the correlation of past research of geologic units and groundwater potentials, quality and challenges with the present projects implemented in some of the locations. Cases where groundwater projects are executed with wrong exploration options and without consideration of the peculiarity of the geologic units of the project area, including engagement of incompetent contractors, and negligence to the existing regulatory framework for groundwater development in Nigeria are presented. In order to promote sustainable groundwater development and management in the Niger Delta, this research highlights and recommends the pragmatic use of geologic information including various technical, institutional, regulatory and management measures which have the capacity to avert challenges in groundwater development for provisional use.

关键词： Groundwater Development Niger Delta Geological Peculiarities Decision Making and Averting Failure

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Observed characteristics of flow,water mass,and turbulent mixing in the Preparis Channel

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Acta Oceanologica Sinica 2023年第2期42卷 83-93页

作者： Ruijie Ye Feng Zhou Xiao Ma Dingyong Zeng Feilong Lin Hongliang Li Chenggang Liu Soe Moe Lwin Hlaing Swe Win Soe Pyae Aung State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of OceanographyMinistry of Natural ResourcesHangzhou310012China School of Oceanography Shanghai Jiao Tong UniversityShanghai200030China Geology Department Dagon UniversityYangon11422Myanmar National Analytical Laboratory Department of research Innovation Ministry of EducationYangon11061Myanmar port and Harbour Engineering Department Myanmar Maritime UniversityYangon11293Myanmar

Preparis Channel is the very important exchange path of energy and materials between the northern Bay of Bengal and Andaman Sea(AS).A set of hydrographic measurements,a microstructure profiler,and a deep mooring were used to determine the characteristics of water masses,turbulent mixing,and flows in the Preparis *** unprecedented short-term mooring data reveal that a deep current in the deep narrow passage(below 400 m)of the Preparis Channel flows toward the Bay of Bengal(BoB)with a mean along-stream velocity of 25.26 cm/s at depth of 540 m;above the deep current,there are a relatively weak current flows toward the AS with a mean along-stream velocity of 15.46 cm/s between 500 m and 520 m,and another weak current flows toward the BoB between 430 m and 500 ***,a sandwiched vertical structure of deep currents(below 400 m)is present in the Preparis *** volume transport below 400 m is 0.06 Sv(1 Sv=106 m^(3)/s)from the AS to the *** the upper layer(shallower than 300 m),the sea water of the AS is relatively warmer and fresher than that in the BoB,indicating a strong exchange through the *** profiler observations reveal that the turbulent diffusivity in the upper layer of the Preparis Channel reaches O(10−4 m^(2)/s),one order larger than that in the interior of the BoB and over the continental slope of the northern *** speculate that energetic high-mode internal tides in the Preparis Channel contribute to elevated turbulent *** addition,a local“hotspot”of turbidity is identified at the deep mooring site,at depth of about 100 m,which corresponds to the location of elevated turbulent mixing in the Preparis Channel.

关键词： deep flow turbulent mixing water mass Preparis Channel

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Sleep disturbances in patients with cirrhosis:Pursuing just right

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portal Hypertension & Cirrhosis 2023年第4期2卷 181-191页

作者： Yangyang Hui Xin Chen Chao Sun Department of Gastroenterology and Hepatology Tianjin Medical University General HospitalTianjinChina Tianjin institute of Digestive Disease Tianjin Medical University General HospitalTianjinChina Department of Gastroenterology Tianjin Medical University General Hospital Airport HospitalTianjinChina

Liver cirrhosis represents the end-stage of chronic liver disease and is related to high morbidity and *** date,there is no standard curative method for liver cirrhosis,but there is treatment for common ***,improving the health-related quality of life(HRQoL)of patients with cirrhosis has become a potential therapeutic intervention by limiting its symptoms and *** is a complex and rhythmic physiological process and is crucial to human *** disturbances are commonly encountered in patients with cirrhosis and adversely affect their ***,sleep disturbances in patients with cirrhosis have received growing attention owing to their reciprocal *** better understand the effect of sleep disturbances on patients with cirrhosis,this review provides a comprehensive summary of the epidemiology and underlying mechanisms of sleep disturbances in *** also elaborate on the mutual relationships between sleep disturbances and other complications,such as muscle cramps,malnutrition,frailty,sarcopenia,HRQoL,and hepatic encephalopathy,in the context of ***,we discuss the potential management to improve poor sleep quality in patients with cirrhosis.

关键词： frailty liver cirrhosis melatonin sleep disturbance

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Weapons Detection for Security and Video Surveillance Using CNN and YOLO-V5s

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Computers, Materials & Continua 2022年第2期70卷 2761-2775页

作者： Abdul Hanan Ashraf Muhammad Imran Abdulrahman M.Qahtani Abdulmajeed Alsufyani Omar Almutiry Awais Mahmood Muhammad Attique Mohamed Habib Department of Computer Science Shaheed Zulfikar Ali Bhutto Institute of Science and TechnologyIslamabad44000Pakistan Department of Computer Science College of Computers and Information TechnologyTaif UniversityTaif21944Saudi Arabia College of Applied Computer Science King Saud University(Almuzahmiyah Campus)Riyadh11543Saudi Arabia Department of Computer Science HITEC UniversityTaxila47080Pakistan College of Computing and Informatics Saudi Electronic UniversityRiyadhSaudi Arabia Faculty of Engineering Port Said UniversityPort Fuad CityEgypt

In recent years,the number of Gun-related incidents has crossed over 250,000 per year and over 85%of the existing 1 billion firearms are in civilian hands,manual monitoring has not proven effective in detecting *** is why an automated weapon detection system is *** automated convolutional neural networks(CNN)weapon detection systems have been proposed in the past to generate good ***,These techniques have high computation overhead and are slow to provide real-time detection which is essential for the weapon detection *** models have a high rate of false negatives because they often fail to detect the guns due to the low quality and visibility issues of surveillance *** research work aims to minimize the rate of false negatives and false positives in weapon detection while keeping the speed of detection as a key *** proposed framework is based on You Only Look Once(YOLO)and Area of Interest(AOI).Initially,themodels take pre-processed frames where the background is removed by the use of the Gaussian blur *** proposed architecture will be assessed through various performance parameters such as False Negative,False Positive,precision,recall rate,and F1 *** results of this research work make it clear that due to YOLO-v5s high recall rate and speed of detection are *** reached 0.010 s per frame compared to the 0.17 s of the Faster *** is promising to be used in the field of security and weapon detection.

关键词： Video surveillance weapon detection you only look once convolutional neural networks

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Outbreak, Distribution and Damage Characteristics of Cocoa Stem Borer, Eulophonotus myrmeleon Felder 1874 (Lepidoptera: Cossidae) in Major Cocoa Producing States in Nigeria

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Advances in Entomology 2022年第2期10卷 175-185页

作者： Emem Basil Kingsley-Umana Uche Evarestus Asogwa Idongesit Mokwunye Department of Crop and Soil Science Faculty of Agriculture University of Port Harcourt Rivers State Nigeria Entomology Section Cocoa Research Institute of Nigeria Ibadan Oyo State Nigeria

This study aims to ascertain the extent of the cocoa stem borer Eulophonotus myrmeleon distribution, outbreak, and damage to the cocoa plantations in six cocoa growing states in Nigeria. Three local government areas were selected from each of the six major cocoa states and three farms from each local government area. In each farm, 100 cocoa trees were randomly selected and inspected for symptoms and damages of E. myrmeleon. The result revealed that E. myrmeleon infestation has increased significantly (p = 0.01, df = 1, F = 41.77) in 2019 by 10% from the 2014 inspection. It also showed that the infestation level was significantly different from state to state. Symptoms of infestation include presence of entry/exit holes, woody exudates around the trees, yellowing and browning of the leaves. Damages caused by E. myrmeleon infestation are, loses of pod on the affected branch and tree and death of tree. Field observations showed clearly that stem borer is now becoming a serious problem and limiting considerably the production of cocoa in the region. It is time to give more attention to the biology and management of the pest. This is the first report detailing the symptoms and damage done by cocoa stem borers in Nigeria.

关键词： Cocoa Stem Borer Survey Infestation Exudates Damage

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research on Motion Performance of the Mobile Double-Causeway Pier System

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China Ocean Engineering 2008年第2期22卷 267-276页

作者：余建星田佳徐金利张翼飞杨晓蓉谭振东董文斌杜尊峰 Key Laboratory of port and Ocean Engineering Tianjin University Jinghai Bureau of Communications Military Transportation institute

Mobile offshore double-causeway pier system, a type of seashore unloading equipment, consists of two groups of multiple connected semi-submersible modules. This structure has wide application because most of the middle or mini type of vessels and ships can be moored to it. Based on the analysis of computational methods of multi-body motion response, a hydrodynamic model is set up and the three-dimensional potential theory in finite depth is adopted to calculate the three-dimensional motion response of this system. The double P-M spectrum is used to analyze the motion response in irregular waves. Different wave directions are specially taken into consideration, due to their various effects to the motion response. Furthermore, the calculated result is compared with that of the experiment, and it is proved that sway, heave, pitch and yaw motion are greatly constrained by mooring system. The comparison also indicates that the model can forecast the motion performance of the target, and that the calculated result can also be used as reference in connector and mooring system design.

关键词： offshore mobile pier system multi-floating body potential theory double P-M spectrum hydrodynamic analysis

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Epipelagic mesozooplankton communities in the northeastern Indian Ocean off Myanmar during the winter monsoon

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Acta Oceanologica Sinica 2023年第6期42卷 57-69页

作者： Ping Du Dingyong Zeng Feilong Lin Sanda Naing Zhibing Jiang Jingjing Zhang Di Tian Qinghe Liu Yuanli Zhu Soe Moe Lwin Wenqi Ye Chenggang Liu Lu Shou Feng Zhou Key Laboratory of Marine Ecosystem Dynamics Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China port and Harbour Engineering Department Myanmar Maritime UniversityYangon 11293Myanmar Geology Department Dagon UniversityYangon 11422Myanmar

The northern Andaman Sea off Myanmar is one of the relatively high productive regions in the Indian *** abundance,biomass and species composition of mesozooplankton and their relationships with environmental variables in the epipelagic zone(~200 m)were studied for the first time during the Sino-Myanmar joint cruise(February 2020).The mean abundance and biomass of mesozooplankton were(1916.7±1192.9)ind./m3and(17.8±7.9)mg/m3,respectively.A total of 213 species(taxa)were identified from all *** omnivorous Cyclopoida Oncaea venusta and Oithona *** the top two dominant *** mesozooplankton communities were determined via cluster analysis:the open ocean in the Andaman Sea and the Bay of Bengal(Group A),the transition zone across the Preparis Channel(Group B),and nearshore water off the Ayeyarwady Delta and along the Tanintharyi Coast(Group C).Variation partitioning analysis revealed that the interaction of physical and biological factors explained 98.8%of mesozooplankton community spatial variation,and redundancy analysis revealed that column mean chlorophyll a concentration(CMCHLA)was the most important explanatory variable(43.1%).The abundance and biomass were significantly higher in Group C,the same as CMCHLA and column mean temperature(CMT)and in contrast to salinity,and CMT was the dominant *** taxon spatial variations were controlled by CMCHLA,salinity and *** study suggested that mesozooplankton spatial variation was mainly regulated by physical processes through their effects on *** physical processes were simultaneously affected by heat loss differences,freshwater influx,eddies and depth.

关键词： mesozooplankton Myanmar epipelagic zone physical processes water column mean chlorophyll a

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A general method for modified function projective synchronization

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Journal of Harbin institute of Technology(New Series) 2010年第4期17卷 451-455页

作者：杜洪越曾庆双李锋袁得春 Space Control and Inertial Technology research Center Harbin Institute of Technology Beijing Capital International airport Company Limited Information Technology Department College of Electromechanical Engineering Northeast Forestry University

This paper investigates the modified function projective synchronization,which means that the drive system and the response system are synchronized up to a desired scale matrix of function. By the active control scheme,a general method for modified function projective synchronization is proposed. Numerical simulations on chaotic Rssler system and hyper-chaotic Chen system are presented to verify the effectiveness of the proposed scheme.

关键词： chaos synchronization active control modified function projective synchronization projective synchronization

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LSM12 facilitates the progression of colorectal cancer by activating the WNT/CTNNB1 signaling pathway

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Oncology research 2022年第6期30卷 289-300页

作者： YAN ZHUANG CHUNLAN NING PENGFEI LIU YANPENG ZHAO YUE LI ZHENCHI MA LULING SHAN YINGZHE PIAO PENG ZHAO XUN JIN Department of Colorectal Oncology Tianjin Medical University Cancer Institute&HospitalNational Clinical Research Center for CancerTianjin’s Clinical Research Center for CancerKey Laboratory of Cancer Prevention and TherapyTianjin300060China Department of Biochemistry and Molecular Biology Tianjin Medical University Cancer Institute and HospitalNational Clinical Research Center for CancerTianjin’s Clinical Research Center for CancerKey Laboratory of Cancer Prevention and TherapyTianjin300060China Tianjin Medical University Tianjin300070China Department of Oncology Tianjin Academy of Traditional Chinese Medicine Affiliated HospitalTianjin300120China Tianjin Marvel Medical Laboratory Tianjin Marvelbio Technology Co.Ltd.Tianjin300381China Department of Gastro Colorectal Oncology Tianjin Cancer Hospital Airport HospitalTianjin300304China Department of Neuro-Oncology and Neurosurgery Tianjin Medical University Cancer Institute&HospitalNational Clinical Research Center for CancerKey Laboratory of Cancer Prevention and Therapy TianjinTianjin’s Clinical Research Center for CancerTianjin300060China

Aberrant activation of the WNT signaling pathway is a joint event in colorectal cancer(CRC),but the molecular mechanism is still ***,RNA-splicing factor LSM12(like-Sm protein 12)is highly expressed in CRC *** study aimed to verify whether LSM12 is involved in regulating CRC progression via regulating the WNT signaling ***,we found that LSM12 is highly expressed in CRC patient-derived tissues and ***12 is involved in the proliferation,invasion,and apoptosis of CRC cells,similar to the function of WNT signaling in ***,protein interaction simulation and biochemical experiments proved that LSM12 directly binds to CTNNB1(also known asβ-Catenin)and regulates its protein stability to affect the CTTNB1-LEF1-TCF1 transcriptional complex formation and the associated WNT downstream signaling ***12 depletion in CRC cells decreased the in vivo tumor growth through repression of cancer cell growth and acceleration of cancer cell *** together,we suggest that the high expression of LSM12 is a novel factor leading to aberrant WNT signaling activation,and that strategies targeting this molecular mechanism may contribute to developing a new therapeutic method for CRC.

关键词： CRC LSM12 WNT CTNNB1 Apotosis

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Time-Series Embeddings from Language Models:A Tool for Wind Direction Nowcasting

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Journal of Meteorological research 2024年第3期38卷 558-569页

作者： Decio ALVES Fabio MENDONCA Sheikh Shanawaz MOSTAFA Fernando MORGADO-DIAS University of Madeira Campus Universitário da Penteada9020-105FunchalPortugal Interactive Technologies institute/Laboratory for Robotics and Engineering Systems and Agência Regional para o Desenvolvimento da Investigação Tecnologia e InovaçãoEdif.Madeira TecnopoloCaminho da Penteada piso-29020-105FunchalPortugal

Wind direction nowcasting is crucial in various sectors,particularly for ensuring aviation operations and *** this context,the TELMo(Time-series Embeddings from Language Models)model,a sophisticated deep learning architecture,has been introduced in this work for enhanced wind-direction *** by using three years of data from multiple stations in the complex terrain of an international airport,TELMo incorporates the horizontal u(east-west)and v(north-south)wind components to significantly reduce forecasting *** a day with high wind direction variability,TELMo achieved mean absolute error values of 5.66 for 2-min,10.59 for 10-min,and 14.79 for 20-min forecasts,processed within a swift 9-ms/step *** degree-based analysis,in comparison,yielded lower performance,emphasizing the effectiveness of the u and v *** contrast,a Vanilla neural network,representing a shallow-learning approach,underperformed in all analyses,highlighting the superiority of deep learning methodologies in wind direction *** is an efficient model,capable of accurately forecasting wind direction for air traffic operations,with an error less than 20°in 97.49%of the predictions,aligning with recommended international *** model design enables its applicability across various geographical locations,making it a versatile tool in global aviation meteorology.

关键词： wind nowcasting wind components wind direction time series prediction deep learning

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