Search

The Sesan River, a major tributary of the Lower Mekong River, is renowned for its diverse biomes and is an important resource for its nearby inhabitants. Hydropower dams have proliferated in the basin, yet their hydrologic impacts remain poorly understood, particularly when combined with the influence of climate change. This study evaluates hydrologic alterations resulting from the operation of hydropower dams and projected climate change in the basin. Climate change projections are estimated under two Shared Socioeconomic Pathways (SSP2-4.5 and SSP5-8.5), and daily streamflow is simulated using the Hydrologic Engineering Center-Hydrologic Modeling System (HEC-HMS). The degree of hydrologic alteration is assessed using the Indicators of Hydrologic Alteration (IHA) under dam operation, climate change, and dams and climate change combined. Dam operations induce moderate alteration, while climate change alone causes low alteration. The combined scenario causes higher alteration than the individual scenarios, but the alteration falls within the moderate category. [ABSTRACT FROM AUTHOR]

The study quantitatively assesses the hydrological alterations induced by the Luv Kush Barrage on the Ganga River, India, using the Range of Variability Approach (RVA) to analyze changes in flow conditions before and after the barrage construction. The Ganga River, a crucial water source for millions, has experienced significant hydrological changes due to human interventions, notably the construction of the Luv Kush Barrage. Employing indicators of hydrological alteration (IHAs), we compared pre-impact (1972–1994) and post-impact (2001–2014) flow data to ascertain the barrage's effects on the river's flow regime. Our findings reveal significant alterations in the magnitude of monthly streamflow, especially during the monsoon season, with notable decreases in July, August, and September. Alterations were observed in the annual extreme flow conditions, frequency, and duration of high and low pulses, indicating a comprehensive impact on the river's natural flow patterns. These alterations affect the river's ecological health, affecting aquatic habitats, fishery resources, and community livelihoods dependent on the river. The study underscores the necessity for integrated water resource management practices that consider the ecological and socio-economic implications of hydrological alterations. [ABSTRACT FROM AUTHOR]

Copyright of Turkish Journal of Remote Sensing & GIS / Türk Uzaktan Algılama ve CBS Dergisi is the property of Halil Akinci and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Nowadays, systems that use more electricity in aircraft are increasing due to harmful gas emissions. This increase has created the need to store electrical energy and accelerated the trend towards battery technologies. Since energy storage in batteries occurs as a result of chemical reactions, problems may occur that will damage the battery group or the entire system. These problems are caused by high current, voltage, and temperature, which affect the reaction rate during battery charging/discharging. A Battery Management System (BMS) is needed to prevent problems and to use the required electrical energy safely. In this study, it is aimed to meet the energy needs of the system in a controlled manner by disabling only the damaged cell in case of problems that may occur in the cells in the battery. For this purpose, a model of an Unmanned Aerial Vehicle (UAV) system been created by adding a BMS block to each cell to control the battery cells. The BMS model is realized based on the cell temperature, the State of Charge (SoC) value of the cell, and the output voltage values of the cell. The UAV system is modeled using MATLAB/Simulink environment. Thanks to the proposed BMS, in case of a problem that may occur in any cell in the battery, that cell will be disabled and the required energy will be met through the remaining cells. It is observed from the results obtained that when the cell parameters become normal, it continues to feed the system again. [ABSTRACT FROM AUTHOR]

Copyright of Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım ve Teknoloji is the property of Gazi University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

İnsansız hava araçlarının dünya genelinde birçok kullanım alanı mevcuttur. Multidisipliner alanda kullanılan bu araçlar Türkiye Cumhuriyeti’nin terörle mücadele sürecinde taktiksel değişimi beraberinde getirmiş ve Millî Teknoloji Hamlesi kapsamında Türkiye’nin uluslararası güvenliğe katkısı açısından büyük öneme sahip olmuştur. IHA/SIHA üretimi sürecinde bu konuda çığır açan çalışmalar resmî kurumlar ve BAYKAR gibi şahsi girişimler tarafından geliştirilmiş ve Türkiye’nin liderlik ettiği sınır ötesi operasyonlarda önemli başarılar kat edilmiş ve bölgesel güvenliğin sağlanmasında Türkiye önemli bir rol oynamıştır. 1990’lardan bu yana yurtdışı bağımlılık neticesinde satın alınan cihaz ve silahların veri güvenliği sağlanamadığından ülke kendi savunma sanayi stratejisini oluşturmuş ve başarılı bir istihbarı temel ile havadan havaya füze atma kapasiteli son teknoloji savaş uçakları ve insansız hava araçları ile yapılan operasyonlar başta DAEŞ olmak üzere terör örgütlerinin hareket kabiliyetlerini önemli ölçüde kısıtlamış ve Türkiye’yi bölgesel ve uluslararası güvenlik alanında önemli bir oyuncu hâline getirmiştir. Ülkelerin bağımsızlığının sadece özgürlük ve demokrasi yönetimi ile sınırlandırılamayacağı günümüzde bir ülkenin kendi güvenliği için özellikle savunma sanayisinde yenilikler yapıp ilerleme kaydedebilmesi gerekmektedir. Türkiye’nin son yıllarda önemli bir ivme kazandığı insansız hava aracı sistemleri hem devlet güvenliği hem de bölgesel ve uluslararası güvenlik hususlarında ülkenin yeni bir rol elde etmesini sağlamıştır. Bir başka deyişle bu araçlar geleneksel askeri hava araçlarına kıyasla maliyet etkinliği ve riskin az olması gibi avantajlara sahip olup ayrıca Türkiye’nin IHA/SIHA’larını kendi iç güvenlik operasyonlarında ve sınır güvenliği gibi alanlarda kullanması bu teknolojinin stratejik önemini artırmıştır. Türkiye’nin bu alandaki ilerlemesi, uluslararası güvenlik politikaları ve savunma sanayisi trendleri açısından da önemli bir gelişme olarak değerlendirilebilir. Bu teknolojik gelişmelerin, Türkiye’nin dış politika ve savunma stratejilerini nasıl etkilediği konusunda detaylı bir analiz yapmak, bu konunun karmaşıklığını daha iyi anlamamıza yardımcı olabilir.

In this study, motion of a quadcopter (that is called DRIHA) to track a target is auto controlled based on the data acquired by images. The images are taken by the monocular camera mounted on the center of gravity of the DRIHA. The detected target is automatically tracked by proposed methods. Designed controllers control translational and rotational motion with respect to the motion occurred in images. An image error vector is proposed to reduce the effects of error signals on the motion. Controllers are designed for controlling the pitch, roll, and yaw angles using the features in the image plane. The model developed by the image-based visual servoing (IBVS) approach is tested in the Gazebo simulation environment. Simulation test results validate effectiveness of the proposed system that includes simultaneous and comprehensive designs in terms of automatic control and target tracking performance. The proposed methods enable autonomous navigation applications even in environments where global positioning systems are unavailable. [ABSTRACT FROM AUTHOR]

Copyright of Turcology Research is the property of Ataturk University Coordinatorship of Scientific Journals and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In this study, a bibliometric analysis of scientific publications on Unmanned Combat Aerial Vehicles was conducted within the framework of the Web of Science Database Core Collection. As a result of the analysis, it has been observed that although there has been an increasing trend in the last 10 years, especially in research-oriented publications, there are still not enough high-level indexed studies, especially review-oriented studies. In addition, the rate of international authorship in the studies is very low, and studies are generally multi-authored and conducted at national level. Almost all of the studies are focused on technical and engineering disciplines, and the level of interdisciplinary work with social sciences is still very insufficient. The findings of both the overall performance analysis and the bibliometric analysis show that in terms of authors, publications, citations, institutions and countries, first China and then the USA are by far in the leading position in academic studies compared to other countries. [ABSTRACT FROM AUTHOR]

Copyright of Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım ve Teknoloji is the property of Gazi University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The mew gull (Larus canus), little tern (Sternula albifrons) and black-headed gull (Chroicocephalus ridibundus) are threatened in Poland by the loss of breeding habitats due to changes in the hydrological regime of rivers and the frequency and length of inundation. Analysis of daily flows generated from the SWAT model allowed us to obtain the values of hydrological characteristics expressed as Indicators of Hydrological Alteration (IHA) and find the relationship with collected data on nesting success on islands and sandbanks in the Middle Vistula from 2004 until 2018. For each bird species, a set of adjusted IHA was calculated for future scenarios (2021-2050 and 2071-2100). The projections were prepared on the basis of EURO-CORDEX and contain two scenarios of changes in greenhouse gas concentrations: RCP4.5 and RCP8.5. Catastrophic breeding seasons quantification was carried out to assess the number of years that will have unsuitable hydrological breeding conditions in the projected climate change. The mew gull noted the lowest nesting success (during 2004-2018) but it seems that hydrology is not the principal factor causing it. This species will experience an increase in high flows due to climate change in the far future scenarios. The black-headed gull is projected not to be affected by an increase in the percentage of catastrophic breeding seasons due to climate change. The little tern seems to be the most affected by projected climate change due to an increase in high flows and, in consequence, an increasing percentage of catastrophic breeding seasons. The results confirmed the importance of hydrologic change for avian nesting success. [Display omitted] [ABSTRACT FROM AUTHOR]

BackgroundThe virulence of Yersinia pestis strains in the Rattus flavipectus plague focus is relatively low. The purpose of this study was to investigate the undetected, sporadic plague cases in plague foci and provide the basis for plague prevention and control.MethodsA 3-year-old plague-confirmed case was investigated in the R. flavipectus plague focus of Yunnan Province in 2020 due to the intensive screening for fever symptoms during the coronavirus disease 2019 (COVID-19) pandemic. Epidemiological investigation, laboratory testing, and clinical treatment were conducted for the case. The expanded survey was carried out around the case within a 7-km radius, including the resident population, domesticated dogs, and rats. PCR and indirect hemagglutination tests were performed on the collected samples.ResultsThe isolation rates of Y. pestis were 100.0% (7 out of 7) in dead rats and 4.00% (3 out of 75) in live rats in the survey area of the foci. A total of 5.00% (6 out of 120) of the domesticated dogs were F1 antibody positive. Nine local people were determined for plague infection recently (0.92%, 9 out of 978). The locations of human cases coincided with the Y. pestis epidemic area among the animals.ConclusionThis study discovered the existence of plague cases that had not been detected by routine surveillance in the R. flavipectus plague focus, and the actual epidemic of human infection may be underestimated.

Study region: The Shanmei Reservoir Watershed (SRW), Southeast China. Study focus: This study investigated the climate and hydrological regimes alterations in a subtropical coastal watershed (SRW) during the 21st century in extreme scenarios. The extreme scenarios, i.e., warm-wet and cold-dry climates, were constructed using 18 global climate models (GCMs) from CMIP6 under shared socioeconomic pathways (SSP1–2.6, SSP2–4.5, SSP3–7.0 and SSP5–8.5). The Soil and Water Assessment Tool (SWAT) model and Indicators of Hydrologic Alteration (IHA) were applied to quantify the impacts of climate change on the eco-hydrological regimes during the projected period (2041–2100) compared to the base period (1980–2014). New hydrological insights for the region: The results show that the average temperature rises by 0.6–3.8 ℃, and the average annual precipitation changes by −21.4 % - 32.4 % by the end of the 21st century under extreme scenarios. Contrasting hydrological regimes are expected in the SRW under extreme scenarios. Under the extreme warm-wet scenarios, the monthly runoff is lower during spring and higher during summer, the minimum flows are significantly higher, and the maximum and minimum flows occurs earlier. Water resource utilization and ecosystem health are expected to improve. However, the opposite holds true in the cold-dry scenarios. The hydrologic regime alteration under future extreme climate scenarios can guide local water planning and ecological restoration strategies.

Copyright of Mevzu is the property of Ali Sever and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Geomatik is the property of Murat Yakar and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Geomatik is the property of Murat Yakar and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

With the developing technologies in the aviation, the transition to more electrical systems is increasing day by day. For this reason, research on the development of batteries has accelerated. Nowadays, Lithium ion (Li-ion) batteries are more widely preferred due to their energy-to-weight ratio and advantages such as having a lower self-discharge rate when not working compared to other battery technologies. Batteries convert the stored chemical energy into electrical energy and heat is released as a result of the chemical reactions. The heat released negatively affects the battery's lifespan, charging/discharging time and battery output voltage. The battery must be modeled correctly to see these negative effects and intervene in time. In this way, negative situations that may occur in the battery can be intervened at the right time without any incident. In this study, the unmanned aerial vehicle (UAV) is powered by Li-ion batteries. It is simulated in Matlab/Simulink environment using the electrical equivalent circuit. A detailed model is created, taking into account temperature, state of charge (SoC), cell dynamics and operating functions. To estimate state of health (SoH) of the battery, resistance values must be known. Resistance and capacity values in the equivalent circuit of the Li-ion battery are obtained with the help of the simulation model. So, the SoH of the Li-ion batteries can be accurately predicted with the results obtained. [ABSTRACT FROM AUTHOR]

Advanced camera systems integrated in to unmanned aerial vehicles (UAVs) enable the acquisition of highresolution images. These images are often more advantageous in terms of spatial, temporal, radiometric, and spectral resolution compared to satellite images. However, depending on the size of the scanned areas, the acquired data becomes large and occupies significant storage space. Therefore, processing the data to obtain meaningful information and insights becomes challenging. Various methods have been developed to extract meaningful data from images. While operators used to analyze images one by one in the past, today, objectbased and pixel-based data extractions have been developed. Thanks to these methods, data can be parsed by software rapidly and with high accuracy. Segmentation and classification methods facilitate processes such as categorization, sub-classification, parsing, and detection. Segmentation and classification processes on data are of crucial importance for the analysis of large and complex datasets. Numerous studies demonstrate that these techniques and applications are continuously evolving and gaining prominence in the literature. Within the scope of this study, segmentation and classification efforts conducted with UAVs have been discussed, and the outcomes of these studies have been examined. It is observed that studies utilizing hybrid and deep learning-based techniques tend to yield more efficient results compared to other approaches. [ABSTRACT FROM AUTHOR]

Mining and mining activities are among the sectors that make a major contribution to the national economy. Fast and accurate production planning for the work to be carried out in the mine makes an important contribution. For this purpose, it is necessary to map the mine sites and measure their volumes. UAVs, which have been used in various fields as the technology has developed, have found a place in the mining sector for various purposes. UAVs are much cheaper and more practical to use compared to other expensive technologies, especially for measurements in mining areas. In this study, a digital elevation model and an orthomosaic map were produced from the data collected by the UAV. Using the digital maps produced, a state-of-the-art map of the mine site was made and finally the volume calculation of the 2 waste areas in the mine site was performed in two different software. As a result, it was observed that the use of UAV technology in the mining sector, especially in open pit mines, is an effective method and offers significant advantages over conventional methods. It was also found that the volume calculations made using UAV technology are highly accurate and highly consistent with the results obtained using conventional methods. [ABSTRACT FROM AUTHOR]

Maps produced using remote sensing (RS) and photogrammetry techniques are commonly used today. Alongside rapidly advancing technology, RS, photogrammetric sensors, and transportation platforms are changing and evolving. Particularly, the advancement in unmanned aerial vehicle (UAV) technology has facilitated access to aerial images. Besides being faster compared to other methods, the inclusion of spatial information makes UAV imagery advantageous. The increasing urban population and the expansion, renewal, and growth of cities have heightened the need for rapidly and accurately collected spatial data. UAV usage is one of the methods in accessing the required raw data. 3D building models, being a crucial component of 3D virtual city models, play an important role in detecting existing buildings through digital products produced via photogrammetric methods from UAV-obtained aerial imagery. Considering that our country is prone to earthquakes, there is a significant need for 3D virtual models of our cities. The possible creation of a 3D virtual city model enables the determination of material damage post-earthquake and facilitates access to information about the residents in the area. In this study, the New Neighborhood district of Şefaatli, Yozgat, was selected as the application area. As a result of the study, a 3D virtual model of the neighborhood located in the stream bed was created. The 3D virtual model has successfully achieved its purpose by carrying information in addition to the 3D appearance of the buildings in the attribute data. [ABSTRACT FROM AUTHOR]

In this study, the speed control of a Cessna 172 aircraft is carried out under windy weather conditions by combining X-Plane, which is a computer-based flight simulator, with Simulink. Model predictive controller (MPC) is developed for the model linearized under trim conditions and software-in-the-loop (SIL) tests are performed. Von Karman wind turbulence model, which is widely preferred in the literature as a wind disturbance effect, is added to the model. Data communication is provided through a realtime user datagram protocol (UDP). The results of simulation studies are examined by comparing those of PID control-based autopilot development studies in the literature. Accordingly, in the UAV controlled by the MPC method, which also takes into account flight control surfaces and throttle constraints, the speed reference changes are accurately monitored while maintaining pitch stability, and it is observed that more successful virtual flight tests are carried out compared to the similar studies. [ABSTRACT FROM AUTHOR]

Changes in the hydrology of rivers are important in environmental and civil planning. During recent years, climate changes and population increase in the vicinity of the rivers of Alborz province, including the Taleghan River, have caused the hydrological condition of the river to face changes under the influence of human intervention, which can be pointed out. It has many negative effects on the state of the region's ecosystem. Considering the importance of the subject, in this research, the factors affecting the hydrological changes of the Taleghan River have been investigated. Descriptiveanalytical methods have been used in this research. The most important data of the research included Landsat 5 and 8 satellite images, the SRTM 30-meter height digital model, Taleghan synoptic station climate information, and regional discharge information. Also, the most important tools used in the research were ArcGIS, ENVI, and SPSS. According to the subject of the study, this research has been done in several stages. In the first stage, the evaluation of land use changes, in the second stage, the evaluation of changes in climatic elements, and in the third stage, using IHA indicators, has been paid to evaluate the hydrological changes of the Taleghan River. The results of this research have shown that during the years 2000-2017, the average temperature of the region has increased and the area covered by snow has decreased. Also, under the influence of population growth, the use of artificial areas has increased and the use of gardens and pastures has decreased. Also, the total results of this research have shown that the discharge of the Taleghan River under the influence of natural and human changes, in terms of all IHA indicators, has had a significant decreasing trend. Also, among the stations in the region, the Glink station, which is located downstream of other stations, has faced more changes, which can be considered as the result of human activities and climate changes. [ABSTRACT FROM AUTHOR]

Copyright of Iranian Veterinary Journal is the property of Shahid Chamran University of Ahvaz and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The study was carried out to analyze the degree of correlation between indirect haemagglutination (IHA) antibody titres and passive mouse protection test (PMPT) for 25 LD50 and 50 LD50 challenge does, using the post vaccination sera collected at monthly interval from the experimental bentonite clay, Mycobacterium phlei and vaccine without adjuvant (non-adjuvanted vaccine). A good correlation between IHA antibody titres and PMPT was observed with all the four vaccine products for both 25 LD50 and 50 LD50 challenge doses, with a coefficient of 0.835 and 0.898, respectively. Higher the IHA titre, more was the protection rate observed, for both the challenge dosages. [ABSTRACT FROM AUTHOR]

Teknolojik gelişmeler her geçen gün insana dair olan pratikleri, anlam dünyasını ve yaşamı daha fazla etkilemektedir. İletişim ve medya alanında yaşanan teknolojik gelişmelere odaklandığımızda ise gerek iletişim fakültelerinde verilen eğitimlerin gerekse medya sektörünün daha fazla teknolojik yenilikleri takip etme potansiyeline sahip olduğunu görmekteyiz. Teknolojik gelişmelerin hem iletişim fakültelerindeki eğitimi hem de medya sektöründeki pratikleri nasıl etkilediğini Dorne-İHA teknolojileri bağlamında Doç. Dr. Muzaffer ŞAHİN ile konuştuk.

Understanding the potential impact of anthropogenic climate change on the hydrological regime of the Koshi River Basin (KRB) is very important for sustainable water resources and ecosystem management. The hydrological studies are mainly focused on the annual, seasonal, and peak flows of the hydrological regime; however, the ecologically relevant flows of the hydrological regime are less explored. In this study, we analyzed the different flow characteristics based on the magnitude, intensity, and duration using the Indicator of Hydrologic Alterations (IHA) under the influence of shared socio-economic pathway (SSP) scenarios. We found that the KRB will experience a shift in hydro-climatic events, an increase in rise and fall rates of flow, increase in monthly low flows of the hydrological regime, eventually affecting the livelihoods and ecosystem of the basin. This study highlights the importance of environmental flow components (EFCs) in a hydrological regime to better understand the flow characteristics during the future hydro-climatic variability. HIGHLIGHTS IHA and EFCs were grouped into five based on magnitude, intensity, and duration.; Increased uncertainty has increased the chances of untimely extreme events in the KRB.; Future post-monsoon and winter streamflow increases, sustaining the water table and aquatic life.;

Introduction Hydrological regimes play a major role in changing the structure and function of ecological processes and river ecosystems. Significant changes in the hydrological regimes of river flow cause the spatial and temporal heterogeneity of river systems and the degradation of natural ecosystem services and threaten biodiversity. Trend analysis and change point detection are important topics in the analysis of hydrological time series. The study area in this research includes the upstream part of the Hablehroud river basin draining to the Bonekoh hydrometry station, located within the jurisdiction of the Tehran province. The Habaleroud river as the main drain of this watershed has recently encountered the pressures induced by human interventions and climate change, resulting in significant changes in its hydrological status. Materials and Methods In this research, using the sequential Mann-Kendall, Pettitt, Buishand Range, Buishand U, Standard Normal Homogeneity, and double mass curve tests, the significant change point in the annual discharge time series (1980–2017) of the Bonekoh hydrometry station at the outlet of the Hableroud watershed was detected. Then, using the Indicators of Hydrologic Alteration (IHA), the alterations in the hydrological condition in the period after the change point (Altered flow regime) compared to the period before the change point (the natural flow regime) were analyzed using the daily observed discharge data of the Hableroud watershed. Results and Discussion According to the research results, in the mid-1990s, a statistically significant change point in the annual discharge time series of the Bonekoh hydrometry station occurred, and most of the hydrological indicators show a deterioration in the condition of the Habaleroud watershed flow regime. Whereas for most of the hydrological indicators, after the change point, the frequency of the low values category has increased and the frequencies of the middle and high values categories, have decreased. These reductions have not only occurred for high extreme values, but also for low extreme values. In addition, the mean monthly discharge for all months of the year and the base flow of the basin have decreased. Both the frequency and duration of low-flow pulses have increased. On the contrary, both the frequency and duration of the high-flow pulses have decreased. For this reason, the frequency and magnitude of high extreme events such as medium and large floods have decreased. The long-term trend analysis indicated that 25 out of the 33 IHA have experienced a statistically significant decreasing trend. Therefore, the mean annual discharge of the watershed at the Bonekoh station has declined from 8.43 m3/s during the pre-impact period to 5.43 m3/s during the post-impact period, which is equivalent to about 35 % decline in the watershed outflow. While the watershed’s mean annual precipitation shows a negligible long-term increasing trend. Therefore, it seems that human interventions across the watershed play a major role in the hydrologic regime alteration of the watershed. Conclusion In the Benkoh hydrometric station in the mid-1990s, the hydrological regime of the basin has changed significantly. Then, using special software, the hydrological change indicators and key environmental flow indicators were analyzed in the periods before and after the change point. Unfortunately, most of the hydrological indicators show a downward trend in the Habaleroud river flow. So that the average discharge has decreased in all months of the year. Base current values are reduced. Both the frequency and duration of minimum current pulses are increased. On the contrary, both the frequency and duration of maximum current pulses are reduced. For this reason, the frequency and magnitude of extreme events such as medium and large floods have decreased. The results of the analysis of the trend of several indicators of the environmental flow also indicate the regressive course in the ecohydrological conditions of the Hableroud watershed. So that the minimum monthly flows for all months of the year show a downward trend. On the one hand, the continuity and frequency of periods of water shortage has increased, and on the other hand, the frequency of high flow pulses has decreased. The consequence of these changes will be creating tension and threatening riverside plant and animal communities that live in the flood plains of rivers and provide many ecological services. On the other hand, with the destruction of these riverside communities, the hydraulic conditions of the floodplains have changed and the vulnerability of river ecosystems and infrastructure facilities around the river increases against possible floods and causes a lot of damage. With the continuation of the existing process of managing water resources of the basin, stakeholders and beneficiaries of the basin will face many challenges in the future. Due to the fact that the average annual rainfall of Hableroud basin does not show a decreasing trend, it seems that human interventions are one of the main factors affecting the hydrological changes of this basin. Therefore, it is suggested that the main focus of management policies and measures should be focused on the management and optimization of human interventions in Hableroud watershed. In other words, instead of focusing on the top-down management approach and (hard) structural engineering measures, the focus should be on the participatory management approach and (soft) management engineering measures, and the water and soil resources of this basin should be used optimally and in accordance with the principles of sustainable development, so that at the same time Reducing the conflicts between the beneficiaries and the stakeholders upstream and downstream of the watershed (social challenges and threats) which currently occurred on a larger scale between the two provinces of Tehran and Semnan, and also preventing these conflicts from occurring on a smaller scale between the smaller communities upstream and downstream in The extension of waterways and rivers in the basin prevented the occurrence and spread of diverse environmental challenges and threats and vulnerability to natural hazards such as sudden floods and droughts. Also, it is suggested that the future changes in discharge of the studied watershed should be predicted according to the results of climate change models and land use changes, and suitable solutions should be formulated and implemented in order to deal with or adapt to these changes.

Copyright of Turkish Journal of Remote Sensing / Türkiye Uzaktan Algılama Dergisi is the property of Turkish Journal of Remote Sensing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Turkey Unmanned Aerial Vehicle Journal / Türkiye Insansiz Hava Araçlari Dergisi is the property of Ali Ulvi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Turkey Unmanned Aerial Vehicle Journal / Türkiye Insansiz Hava Araçlari Dergisi is the property of Ali Ulvi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Researchers have long been trying to identify and estimate the impacts on the hydrological regime of rivers caused due to anthropogenic activities. In the present study, IHA was used to analyse the effect of dams on the flow regime of the upper and middle Narmada River. A total of 33 indicators were analysed to calculate Hydrological alteration due to dams in Narmada River. Average HA Index values of all 33 parameters are relatively higher for middle Narmada at Mandleshwar (0.86) than that of upper Narmada at Burmanghat (0.57). The average extreme water conditions have decreased both in frequency and in duration. Specifically, fewer floods and less low flow events have occurred in the post-dam period. The main purpose of this article is to identify and quantify the variations in the hydrologic regime so that the cumulative impacts of anthropogenic activities on water resources and the aquatic ecosystems may be reduced using proper water resource management strategies. [ABSTRACT FROM AUTHOR]

Copyright of Türkiye Fotogrametri Dergisi is the property of Mersin University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Defense Sciences / Savunma Bilmleri Dergisi is the property of Turkish Military Academy Defense Sciences Institute and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Global extreme hydrological events pose considerable challenges to the sustainable development of human society and river ecology. Land use/cover change (LUCC) is a visible manifestation of human activity and has caused substantial alterations in extreme hydrological regimes across rivers worldwide. The Jinsha River lies upstream of the Yangtze River and its hydrological variability has had profound socioeconomic and environmental effects. In this study, we developed Hydrological Simulation Program-FORTRAN (HSPF) and land-use simulation models of the entire watershed to simulate the effects of LUCC on hydrological extremes and quantify the inter-relationships among them. The main land-use changes between 1995 and 2015 were those associated with cropland, forest land, and grassland. Between 2015 and 2030, it is estimated that the coverage of forest land, grassland, construction land, and unused land will increase by 0.64%, 0.18%, 69.38%, and 45.08%, respectively, whereas that of cropland, water bodies, and snow- and ice-covered areas will decline by 8.02%, 2.63%, and 0.89%, respectively. LUCC has had irregular effects on different hydrological regimes and has most severely altered stream flows. The responses of hydrological extremes to historical land-use change were characterized by spatial variation. Extreme low flows increased by 0.54%–0.59% whereas extreme high flows increased by 0%–0.08% at the lowest outlet. Responses to future land-use change will be amplified by a 0.72%–0.90% reduction in extreme low flows and a 0.08%–0.12% increase in extreme high flows. The hedging effect caused by irregular changes in tributary stream flow was found to alleviate the observed flow in mainstream rivers caused by land-use change. The extreme hydrological regimes were affected mainly by the net swap area transferred from ice and snow area to forest (NSAIF) and thereafter to cultivated land (NSAIC). Extreme low flows were found to be positively correlated with NSAIF and NSAIC, whereas extreme high flows were positively correlated with NSAIC and negatively correlated with NSAIF. [ABSTRACT FROM AUTHOR]

Streamflow regime management is critical for preserving species in riverine and riparian habitats. Quantifying flow-ecology relationships can help to characterize the effect of flow regime change on species; however, dealing with this in ungauged catchments is challenging. By regionalizing simulation of streamflow to ungauged catchments, the Indicators of Hydrological Alterations (IHA) are calculated and used as a proxy for quantifying ecological impacts. High-resolution Regional Climate Models are used to derive the future streamflow in both gauged and ungauged catchments of the Ethiopian Rift Valley Lakes Basin (RVLB). Consequently, 32 IHAs representing the magnitude, duration, frequency, rate, and timing of streamflow events during their historical and future periods are calculated. The number of cases for future IHAs deviating from their historical range is calculated, which is called the non-attainment rate of future IHAs. A threshold value for the non-attainment rate is set to classify the impact as no-impact, low, medium, or high. The non-attainment rate for the future period indicates that, high ecological impact resulted in October, which is the local high flow month. Spatially, a shift towards a later date of the Julian date indicating the maximum flow resulted in a high ecological impact. This approach can be adapted to other regions with reliable regionalization results and suitable future climate models, which would be useful for the quantification and management of ecological impacts in ungauged regions.

Study region: We selected six (three on each) major and medium river basins of Nepal as a study domain for the analysis. The study areas were so selected that they represent the river basins across the country from East (Kankai basin) to West (Karnali basin). Study focus: This study focuses on the long-term hydrologic alteration in the river flow of Nepal's medium and major rivers of different river basins. The overarching objective of the study is to evaluate the spatio-temporal change in flow magnitude, duration, frequency, timing, and rate of change in the major and medium rivers in Nepal. With continuity in the development activities, it is imperative to analyze the potential impact of human activities in the hydrologic regimes. For this, we used a set of 33 indicators from the indicator of hydrologic alteration (IHA) developed by The Nature Conservancy for the pre and post-impact period. The pre and post-impact period is defined here as the time before and after which the substantial alteration occurred, possibly due to multiple reasons. The pre and post impact periods were determined using the Pettitt statistical test carried out at the most downstream of the hydrological gauge station of each river basin. Further, the trends in the annual flow were estimated using the Mann-Kendall test, and the slope of the trend was estimated using Sen’s slope. New hydrological insights for the region: The results showed that in the post-impact period, the mean annual discharge in major and medium rivers of Nepal was found to decrease by 5.86% and 7.94%, respectively. Except for the West Rapti River (−14.3%), the hydrologic change of 1-day maximum flow is observed to have increased in the medium rivers and decreased in the major rivers. Moreover, except for the Kankai River (+14.29%), the hydrologic change of 1-day minimum flow is observed to be reduced in both the major and medium rivers. In major rivers, the overall degree of alteration ranges from 28.7% to 38.0%, which resembles the low to mid variability range. Similarly, the result of the hydrologic alteration showed that for the medium rivers, the overall degree of alteration varied from 35.8% to 46.7%, representing the medium range of variability. This suggests that the river systems undergoing moderate hydrologic alteration have experienced moderate alteration. These rivers might be capable of sustaining a healthy ecosystem, however, could be more susceptible to other stressors like drought.

Climate change and human activities have markedly altered flow regimes, leading to deleterious consequences for riverine ecosystems. The widely employed hydrological modeling restoration method for conducting flow regime attribution often tends to underemphasize the impact of simulation errors on attribution outcomes. Moreover, the issue of ambiguous attribution targets in flow regime attribution remains a critical concern. This study presented a flow regime attribution framework integrated the hydrological model error correction. Indicators of hydrologic alteration (IHA) simulated by the XAJ and GR4J hydrological models and corrected using the quantile-mapping (QM) and convolutional neural network-long short term memory (CNN-LSTM) error correction methods, were employed to create 6 scenarios for assessing the impacts of climate change and human activities on flow regime changes. A case study was conducted in the Xitiaoxi basin, located in the upper reaches of Lake Tai in China. The results demonstrated that CNN-LSTM's superior performance over QM in correcting IHA metrics simulated by both XAJ and GR4J. The mean flow regime attribution results obtained from XAJ and GR4J simulations following the application of CNN-LSTM correction, mitigated the underestimation of contributions from the primary driving factors, in contrast to uncorrected or QM-corrected IHA metrics attribution results. Additionally, the regime attribution findings revealed all 33 IHA metrics experienced changes, with 73 % of them attributing human activities as the predominant driving forces. Substantial variations in IHA metrics exerted a certain degree of pressure on riverine habitats, particularly impacting the spawning and reproductive activities of piscine species.

With rapid economic and social development, human activities, such as the construction of reservoirs, have satisfied many needs. However, these activities have also caused changes in the hydrological ecosystem of the basin, impacting river biodiversity. The establishment of the Shanxi Reservoir within the Feiyun River Basin has inevitably altered the hydrological system, which was previously shaped primarily by precipitation. This study comprehensively evaluates the impact of Shanxi Reservoir on the hydrological alteration of the basin. Two ecological flow indicators, ecosurplus and ecodeficit, were used based on flow duration curves, along with the Shannon Index of river biodiversity (SI) and several hydrological indicators: the Indicator of Hydrological Alteration (IHA), the Degree of Integrated Hydrological Alteration (D0), and the Dundee Hydrological Regime Alteration Method (DHRAM). The results of the study show that: (1) the previously observed correlation between ecological flow and precipitation was disrupted following the construction of the reservoir. As a result, there was a notable ecological deficit in the spring season, with a maximum of 0.43, and a considerable increase in ecological surplus during winter, reaching a maximum of 4.80. (2) The flow regime of the river has undergone significant changes, resulting in a combined hydrological variability of 66. 44% and an ecological hazard level of 4. This indicates a high risk to the river’s ecological environment. (3) The total seasonal ecological surplus has increased and remained consistently high, which has contributed to a decline in the SI of river biodiversity, the river's biology has degraded over time (4) The use of ecological flow indicators is closely tied to IHA32 indicators. Combining ecological flow indicators with ERHIs has shown to be a successful approach for assessing ecohydrological regimes. These findings have significant implications for future studies in similar cases and offer valuable guidance for managing water resources.

The hydrological system of Rift Valley Lakes in Ethiopia has recently experienced changes since the past two decades. Potential causes for these changes include anthropogenic, hydro-climatic and geological factors. The main objective of this study was to utilize an integrated methodology to gain a comprehensive understanding of the hydrological systems and potential driving factors within a complex and data-scarce region. To this end, we integrated a hydrologic model, change point analysis, indicators of hydrological alteration (IHA), and bathymetry survey to investigate hydrological dynamics and potential causes. A hydrologic model (SWAT+) was parameterized for the gauged watersheds and extended to the ungauged watersheds using multisite regionalization techniques. The SWAT+ model performed very good to satisfactory for daily streamflow in all watersheds with respect to the objective functions, Kling-Gupta efficiency (KGE), the Nash-Sutcliffe efficiency (NSE), Percent bias (PBIAS). The findings reveal notable changes of lake inflows and lake levels over the past two decades. Chamo Lake experienced an increase in area by 11.86 km², in depth by 4.4 m, and in volume by 7.8 x 108 m2. In contrast, Lake Abijata witnessed an extraordinary 68% decrease in area and a depth decrease of 1.6 m. During the impact period, the mean annual rainfall experienced a decrease of 6.5% and 2.7% over the Abijata Lake and the Chamo Lake, respectively. Actual evapotranspiration decreased by 2.9% in Abijata Lake but increased by up to 0.5% in Chamo Lake. Surface inflow to Abijata Lake decreased by 12.5%, while Lake Chamo experienced an 80.5% increase in surface inflow. Sediment depth in Chamo Lake also increased by 0.6 m. The results highlight that the changing hydrological regime in Chamo Lake is driven by increased surface runoff and sediment intrusion associated with anthropogenic influences. The hydrological regime of Abijata Lake is affected by water abstraction from feeding rivers and lakes for industrial and irrigation purposes. This integrated methodology provides a holistic understanding of complex data scarce hydrological systems and potential driving factors in the Rift Valley Lakes in Ethiopia, which could have global applicability. [ABSTRACT FROM AUTHOR]

Birds can perform different flight phases such as climb, cruise and descent efficiently thanks to their adaptive wings. In conventional aircrafts, auxiliary control surfaces are used for different flight phases. In this study, it is aimed to increase the flight efficiency of small unmanned aerial vehicles with the morphing wing approach. The flexible wing is designed to be produced using a 3D printer. Airfoils can be classified as symmetrical, semi-symmetrical and cambered. Symmetrical wings allow higher speeds to be achieved, while cambered wing profiles provide more lift. It is intended that the aircraft wing can be transformed to specified airfoils. The wing is designed to have a morphing leading and trailing edge. In this way, it is aimed that the wing can have variable camber during flight. In order to shape the wing during flight, deformable flexible 3D printed structures were designed on the upper surface of the wing, and a structure with a slotted guide on the lower surface. Static and aerodynamic analyzes of the designed wing were carried out using simulation tools. After the optimization studies, prototype wing was manufactured using a FDM 3D printer, and then the morphing wing was tested in the wind tunnel. The aerodynamic behavior of the designed deformable wing in different conditions was analyzed using XFRL5 software. As a result of the aerodynamic analysis, it was seen that the camber wing had the highest lift coefficient (CL). It has been observed that the symmetrical wing has a lower drag coefficient (CD), resulting in higher aerodynamic efficiency. In wind tunnel tests, wing lift measurements were made for different wind speeds and angles of attacks. It has been observed that a wide range of different wing behaviors can be obtained with the developed morphing wing. [ABSTRACT FROM AUTHOR]

Introduction: However the role of water in sustainable development is vital, the launched infrastructure projects of Integrated Water Resources Management Plans in recent years have not been able to completely maintain the balance between human consumption for socio-economic activities and the water needs of natural ecosystems to guarantee the sustainable life for riverine ecosystems. In this regard, this research investigated the hydrological effects and ecological consequences of the construction of dams in the upstream basin of Jiroft Dam as the key water supply zone in the western Jazmurian watershed, which is also known as Halil-Rud River.Material and methods: In this research, the significance of the long-term changes of the mean annual discharge in the rivers of the study area at the hydrometric stations of Solatni, Baft, Hanjan, Meydan, Qale-Rigi, Konarooiye and Hossein-Abad, as well as the alterations in the mean annual precipitation of rainfall gauges in the period of 38 years (1980-2018) have been analyzed by Mann-Kendall Test and then 33 hydrological parameters (based on the daily discharge of Hossein-Abad hydrometric station in the mentioned period) as indicators of ecological needs (which is affected by the Baft and Jiroft reservoir dams) have been analyzed by using the variability range approach and IHA software in two periods before and after the construction of the dams.Results and discussion: According to the Mann-Kendall test results, although the mean annual discharge in the rivers upstream of Jiroft dam has had a significant drop at the level 95 and 99% of discharge during the past 38 years, the trend of change in the mean annual precipitation in the same period, except one station (Hanjan), was not significant and this difference was due to the negative effects of dams construction and it was also confirmed by the output of the IHA model. It should be noted that based on the output of the mentioned model, 33 hydro-ecological features of Halil-Rud river flow showed fundamental alterations since the operation of Jiroft Dam (1992), but the operation of Baft Dam upstream of Jiroft Dam in 2008 has led to intense negative effects of flow characteristics (outside the acceptable range of ecological variability) in Halil-Rud River.Conclusion: In order to prevent the magnification of the water crisis, the cumulative effects of the construction of chain dams should be considered using hydro-ecological approaches, as well as the water allocation programs, especially the environmental flows should be revised according to the upstream developments of each dam basin, so that the sustainable socio-economic needs as the goals of integrated water resources management would be provided and also the health and survival of the natural ecosystem would be guaranteed.

Riemerella anatipestifer (R. anatipestifer) infection and duck virus hepatitis (DVH) are enormous dangers for the duck industry and its investment. So, in the current study, a combined inactivated vaccine against both of them was prepared to combat their adverse effect. One hundred and thirty-three ducks of one-day-old of age were used and grouped randomly into four groups. Group (1) was vaccinated with R. anatipestifer vaccine, group (2) was vaccinated with DHV vaccine, group (3) was vaccinated with the prepared combined vaccine of both and finally, group (4) was kept as a negative control. Vaccination was at one day old of age. The vaccinated groups with Riemerella vaccine had 72.7% protection against challenges with the virulent strain with the highest antibody titers in 6th week as measured by the indirect Hemagglutination test. The control group had 90.9% mortality when challenged against R. anatipestifer, with no detectable antibody titers. DVH-vaccinated groups exhibited their highest serum-neutralizing antibody titers by the 5th and 6th weeks post-vaccination. The Control group had no detectable antibody titers against DVH. Statistically, it was clear that there were no significant differences between the results of different groups vaccinated with combined or single vaccines of the same agent. Briefly, combined vaccines of R. Anatipestifer and duck viral hepatitis have harmonized effects with the priority to decrease the stress on birds and workers. Besides its efficiency, the economic side as providing one-shot vaccines instead of each one separately.

Remote sensing data and techniques are widely used in modern forestry studies. Today, aerial photographs taken with remote sensors on Unmanned Aerial Vehicles (UAV) can be processed by using softcopy photogrammetry to produce data such as point cloud and orthomosaic. Therefore, it is possible to make some remote measurements in forest ecosystems. It may be necessary to predict stem volumes of trees cut down in a forest area or felled for any reason in a practical way. In this study, it is aimed to predict the over-bark stem volumes by measuring the diameter and height of cut brutian pine trees (Pinus brutia Ten.) in orthomosaic and point cloud data produced from UAV photographs. The study was carried out in 2 different brutian pine stands located within the borders of Çandır Forestry Chief of Sütçüler Forestry Directorate in Isparta Regional Directorate of Forestry. In these areas, the diameter at breast height (d1.3) and total height of 175 cut brutian pine trees were measured on the point cloud and orthomosaics, tree volume predictions were made from these values obtained by various methods and the results were compared with the references data based on field measurements. In the study, the diameter and height measurement results calculated depending on the ground sampling distance of the aerial photographs were also compared. According to the findings, the lowest correlation value of 0.78 and the highest 0.92 for diameter measurements, the lowest 0.96 and highest 0.99 correlation values in height measurements, the lowest 0.70 and the highest 0.93 correlation values in stem volume predictions were obtained between UAV photogrammetry and reference data. As a result, it has been understood that UAVs, which are preferred as a practical remote sensing tool today, can be used to measure the diameter and height of pine trees lying on the ground and stem volumes can be successfully predicted by UAV photogrammetry.

Melioidosis is a particularly dangerous infection with endemic distribution caused by the Gram-negative microorganism from the pathogenicity group II Burkholderia pseudomallei. In endemic countries, melioidosis holds one of the leading places in mortality rate after HIV, tuberculosis and, in recent years, COVID-19. The natural ecological pathogen niches are located in tropical and subtropical climate zones, primarily in Southeast Asia and Australia, where its existence as a species is maintained in moist soil and water in a certain temperature environmental range. However, at present, more and more often cases of melioidosis are registered outside endemic territories, which emphasizes the relevance of improving the means and methods of laboratory diagnostics of this disease both for countries located in the zone of natural foci as well as for local healthcare of the countries after importation of this poorly known infection into their territory. In such countries, including the Russian Federation, the population has no natural immunity to the pathogen, and therefore this infection acquires even greater clinical and epidemiological significance. In the Volgograd Plague Control Research Institute, an erythrocyte antigenic melioidosis diagnostic agent for IHA was designed allowing to detect the presence of serum melioidosis antibodies. The diagnostic agent was obtained on the basis of a biological carrier ram erythrocytes sensitized with isolated protein antigenic complexes of B. pseudomallei. The high analytical characteristics of the diagnostic agent were confirmed on sera models of immunized and recovering experimental animals. Using the obtained set of reagents, the level of serum antibodies against the causative agent of melioidosis was studied in residents from the 3 provinces of Vietnam (Ha Giang, Lang Son and Quang Ninh), as well as in control group composed of residents of the Volgograd region. In samples obtained from a non-endemic region, not more than 25% of cases contained IHA titers at lower than 1:10 dilution, which is apparently due to cross-reactivity of serum immunoglobulins. Positive serum samples from clinically healthy residents of Ha Giang, Lang Son and Quang Ninh provinces were at a titer of 1:10 detected in 71.5%, in dilutions of 1:201:80 in 28.5% of cases. Thus, we believe that serum antibody titer of 1:80 established in the IHA results, has a diagnostic significance, reflecting the intensity of the anti-melioidosis populational immunity.

Copyright of Turkish Journal of Geographic Information Systems / Türkiye Coğrafi Bilgi Sistemleri Dergisi is the property of Mersin University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Turkish Journal of Geographic Information Systems / Türkiye Coğrafi Bilgi Sistemleri Dergisi is the property of Mersin University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Turkey Unmanned Aerial Vehicle Journal / Türkiye Insansiz Hava Araçlari Dergisi is the property of Ali Ulvi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Turkey Unmanned Aerial Vehicle Journal / Türkiye Insansiz Hava Araçlari Dergisi is the property of Ali Ulvi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Türkiye Fotogrametri Dergisi is the property of Mersin University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)