Complicated Terrain Research Articles

Study on terrain acquisition and processing technology of BDS-3 auxiliary mountain highway

The operation mode of UAV equipped with LiDAR can significantly reduce the efficiency and cost of highway terrain acquisition. At present, due to the complicated terrain and weak signal of mountain road, it is difficult to collect terrain data. In view of the above problems, this paper puts forward the technology of BDS assisted terrain acquisition and processing on complex mountain roads. This paper describes in detail the new signal unfuzzy acquisition and tracking algorithm and multi-antenna positioning and attitude determination technology and equipment of BDS-3 mountain highway, through millimeter wave Lidar altimetry technology, imitation ground flight, air-ground multi-source data combined with air three-direction method and other technologies. To realize efficient 3D collection and 3D reconstruction of massive original images of terrain of complex mountain traffic lines in the range of 100 km. Finally, a case study of 100 km mountain road is taken to verify the effectiveness of the method.

Optimal trajectories for UAV three-dimensional path planning using a hybrid ABC-RRT* algorithm

Path planning is critical to the effective operation of unmanned aerial vehicles (UAVs) in complex environments. It is crucial to quickly determine the best path for UAV navigation. In this paper, a novel approach for unmanned aerial vehicle (UAV) path planning is presented by combining the robust artificial bee colony (ABC) algorithm with the flexible rapidly exploring random tree star (RRT*) algorithm. The main objective of this approach is to ensure effective obstacle avoidance. The proposed hybrid algorithm, ABC-RRT*, is compared with several current approaches, namely Improved ABC (IABC), ABC, Particle Swarm Optimization (PSO), ABC-PSO and RRT. ABC-RRT* combines the exploration capabilities of ABC with the route optimization capabilities of RRT* to efficiently determine the best trajectories for UAVs by balancing exploration and exploitation. ABC integration increases the effectiveness of exploration, while RRT* excels at identifying shorter paths and adapting to different conditions. ABC-RRT* has been shown to outperform other methods in terms of path length and flexibility when traversing complicated terrain with many obstacles. This was proven by extensive simulations in various situations. The results demonstrate the effectiveness, fast convergence and robustness of ABC-RRT* and make it a viable solution for obstacle avoidance of UAVs in practice. The fusion of ABC and RRT* for obstacle avoidance shows great potential for UAV route planning and offers remarkable advantages compared to conventional approaches.

My Video, My Choice: A Quantitative Content Analysis of U.S. OBGYN TikTok Videos in the Post-Roe Era

The overturning of Roe v. Wade dramatically altered the landscape of reproductive health care in the United States, yet the extent to which OBGYN influencers on TikTok (i.e., board-certified doctors who specialize in obstetrics and gynecology and have a large following on the social media platform TikTok) used their public platform during this time remains unexplored. This study conducted a content analysis of 441 TikTok videos to identify the most common health concerns raised by OBGYN influencers, their overall responses to the U.S. Supreme Court’s decision, and the strategies they used to combat stigma and misinformation surrounding women’s sexual and reproductive health. Results indicate that a rapidly changing legal landscape has created a complicated terrain for OBGYNs to navigate, where uncertainty and perhaps fear dictate how and to what extent OBGYNs openly discuss abortion and the overturning of Roe v. Wade on public platforms such as TikTok. The OBGYNs in the sample worked around these legal confines to share vital reproductive health information, combat stigma, and express their concerns over the U.S. Supreme Court’s decision. Surprisingly, OBGYNs in the sample rarely addressed sexual and reproductive health misinformation. Implications for these findings are discussed.

Queering Fashion’s Pathologies in Killing Eve 1

The rise of fashion as a star attraction in recent television serials points to the complex critical languages of fashion in fleshing out character and in shifting generic expectations. It also discloses the relation between fashion as commodity and fashion as an extension of self in a way that signals the queer potential of fashion on several fronts. Here I examine how fashion in Killing Eve (Waller-Bridge, 2018–2022) drives a form of queer attachment that speaks to the complicated terrain of a post-queer, post postfeminist critical moment. Throughout the series fashion is as a vehicle for the protagonist’s mercurial moods, from fun and playful to terrifying and anarchic, whilst also driving the audience’s visual pleasure and scopophiliac thrill. But the series is less interested in moral opprobrium of the protagonist’s excesses, either killing or shopping, than revealing “desire’s unruly attentiveness” (Berlant 2002, 72) through Eve's impossibly queer obsession with Villanelle: “I think about what you’re wearing and what you’re doing… I just want to know everything” (Thomas 2018). In queering our fantasmatic relation to fashion, from pleasure and ambivalence to novelty and disgust, Killing Eve dwells on the treacherous flux of our desires, alongside the underlying queerness of the commodity.

Design of an electric tilt-wing Martian aircraft

Aerial vehicles increase the range and versatility of resources that can be researched on exterritorial bodies that possess an atmosphere. These vehicles provide significant advantages over traditional landers and rovers in their ability to travel through complicated terrain and obstacles as well as their ability to obtain gas samples at different altitudes. Currently, there has already been an aircraft present on Mars. Ingenuity, the Martian helicopter deployed by NASA Jet Propulsion Laboratory as part of the Mars 2020 mission, has become the first human aircraft to make a powered extraterrestrial flight and is still conducting flying experiments to date. This research aims to explore the possibilities of designs for future aircraft used for Mars explorations as well as technologies that can improve on the existing designs and concepts. This research also proposes possible solutions to the challenges posed by the Martian environment such as the low atmospheric density and terrain restrictions for take-off by utilising existing technology developed for eVTOL such as tilt-wing design to gain the ability to take-off and land vertically. Other aspects such as the selection and accommodation of the spacecraft to launch vehicles have also been covered in the scope of this research.

Emerging therapeutic strategies in cancer therapy by HDAC inhibition as the chemotherapeutic potent and epigenetic regulator.

In developing new cancer medications, attention has been focused on novel epigenetic medicines called histone deacetylase (HDAC) inhibitors. Our understanding of cancer behavior is being advanced by research on epigenetics, which also supplies new targets for improving the effectiveness of cancer therapy. Most recently published patents emphasize HDAC selective drugs and multitarget HDAC inhibitors. Though significant progress has been made in emerging HDAC selective antagonists, it is urgently necessary to find new HDAC blockers with novel zinc-binding analogues to avoid the undesirable pharmacological characteristics of hydroxamic acid. HDAC antagonists have lately been explored as a novel approach to treating various diseases, including cancer. The complicated terrain of HDAC inhibitor development is summarized in this article, starting with a discussion of the many HDAC isotypes and their involvement in cancer biology, followed by a discussion of the mechanisms of action of HDAC inhibitors, their current level of development, effect of miRNA, and their combination with immunotherapeutic.

Exploring children’s participation from Froebelian practitioners’ perspectives in Scottish context

ABSTRACT Participation has been discussed as a multi-layered concept with varied outlooks on children’s lived experiences. Children’s participation occupies a complicated terrain in that whose participation counts and how it manifests itself within complex adult–child relations are enduring questions in the early childhood field. This qualitative study explored early years practitioners’ perspectives about children’s participation through their Froebelian lenses in the Scottish context. Semi-structured in-depth interviews (n = 14) were conducted online (May 2020–September 2020). As a result of the thematic analysis, three interrelated themes unfold practitioners’ conceptualisations of children’s participation: (i) listening to children’s perspectives, (ii) acting upon children’s perspectives and (iii) active learning and development. The study shows that Froebelian approaches open diverse intellectual spaces for practitioners to consider children’s participation, agency and competency alongside everyday pedagogical encounters. Children’s participation, which was not a common concept in Froebel’s time, is reconceptualised by the practitioners in this research and identified as a substantial but fluid concept in children’s multiple experiences, which is also acknowledged as children’s rights.

Multitargets Orientation Technique Based on Reflection Characteristic Analysis Using an Inverse Diffraction Parabolic Equation

In this article, the inverse diffraction parabolic equation (IDPE) model based on the finite difference method is proposed, which is first applied in the multiple nonradiation targets orientation technology. In principle, the electromagnetic signal propagating in the transmission path will produce a reflected signal back to the source end while encountering the discontinuous objects. The distribution of the reflection or refraction intensity is directly associated with the distances and heights of the objects, so the location can be determined by means of analyzing the distribution. Here, according to the profile data of field intensity at the source end, the distribution of backward propagating electromagnetic waves are calculated rapidly by the IDPE. Then, the local extreme searching method is applied to search the coordinate of the convergence point of field intensity and the positions of multiple objects are finally determined. The piecewise linear function is used to model the irregular terrain. The influence of discontinuous terrain slopes on the false alarm probability of objects localization is also analyzed. The results show that the localization accuracy of the IDPE algorithm is affected by multiple factors, such as the radio frequency and sampling interval of field intensity. It is proved that the IDPE is a novel and efficient algorithm for multiple nonradiation targets orientation technology in long-range complicated terrain environment.

An exploration of the role of trust and rapport in enhancing vaccine uptake among Anishinaabe in rural northern Ontario.

This article examines the complicated terrain of immunization acceptance and access among Indigenous peoples in northern Ontario by drawing on conversations held prior to 2019 that explored knowledge about Haemophilus influenzae type a (Hia) infection specifically and attitudes toward vaccines more broadly. In the decade preceding COVID-19, Hia emerged as a leading cause of morbidity and mortality in Indigenous communities in northern Canada. Before developing new vaccines, it is imperative to hold conversations with the communities most affected and to learn more about Indigenous peoples' perceptions of and knowledge about vaccines, both generally and Hia specifically. We conducted focus groups and one-on-one conversations with Anishinaabe Peoples in northwestern Ontario. Our findings illustrate that decisions to vaccinate are informed by a host of social, institutional, and ideological factors and historical and contemporary relationships with government institutions and health practitioners. In particular, Indigenous community members perceived their relationships with social and health services and education institutions as coercive. Thus, public health approaches cannot continue to operate in ways that prioritize interventions for Indigenous peoples and communities so that they "do the right thing." More emphasis is needed on health service and social service provider knowledge, skills, attitudes and practices-redirecting the onus onto those within the health care system. Solutions must respect Indigenous nationhood and the right of self-determination. Finally, we suggest the term vaccine hesitancy may not entirely capture the breadth of experiences that many Indigenous Peoples and communities have and continue to have within the health care system in Canada.

Legislation of Television Formats: Challenges and Opportunities in Protecting Format Rights in the Global Content Trade Industry

The protection of television format rights as intellectual property provides a difficult and complicated terrain for artists, producers, and legal professionals in the dynamic and ever-changing global content trade business. This paper explores the opportunities and problems related to format rights protection in the international content trade sector. It draws attention to the difficulties confronted by producers, artists, and legal experts in defending novel formats in a setting that is changing quickly. It highlighted how crucial it is for organizations like the Format Recognition and Protection Association (FRAPA) to support format owners and developers, as well as how crucial it is to establish industry standards and promote collaboration. Stakeholders can strive for improved innovation in a competitive market, fair trade practices, and legal clarity by negotiating the complexities of format recognition and protection.

Development Trend and Challenge of Transition Economy in Eastern Europe: A Perspective of Romaniar

In the midst of the significant shifts that defined Eastern Europe's evolution from communism to democracy and a market-based economy, Romania was at the center of this transformational time. The paper presents a thorough examination of Romania's amazing journey, highlighting the difficulties it encountered. This empirical investigation digs into the complex problems that occurred over the transition in order to find suitable solutions that would have helped Romania carry out the transition effectively. To identify the elements that led to these issues, the report makes use of empirical research and comprehensive analysis. The coping mechanisms that Romania ought to have used are at the heart of the situation in this context. This study provides useful insights that go beyond the boundaries of Romania by analyzing approaches and evaluating their efficacy, acting as a case study with broader consequences. It takes both a great sense of flexible methods and a profound awareness of the obstacles of navigating the complicated terrain of an economy in transition. This essay aims to clarify the complexities of Romania's transition by offering a detailed viewpoint on how the country ought to have changed as it transitioned from a planned to a market-driven economy.

Exploring the Relationship Between Regulatory Compliance, Internal Control, Managerial Competence, and Financial Integrity of Indonesian Start-Ups

This study examines the relationship between regulatory compliance, internal control, management competence, and financial integrity to better understand the dynamics that influence the resilience and performance of Indonesian startups. Our quantitative research uses Structural Equation Modeling with Partial Least Squares (SEM-PLS 4) and is based on a stratified random sample of 215 startups from different industries, sizes, and countries. Strong validity and reliability are demonstrated by the measurement model, and good correlations between important constructs are highlighted by the path coefficients. The beneficial effect of regulatory compliance on financial integrity is shown to be amplified by internal control, which is found to be a key mediator. The validity of the suggested relationships is reinforced by the good fit of the structural model. The results of this study provide insightful information for academics, politicians, and startup executives, and offer solutions to navigate the complicated terrain of the startup ecosystem in Indonesia. The results of this study provide useful information for policymakers and startup executives. Maintaining financial integrity requires strengthening internal controls, especially when combined with an emphasis on managerial competence. A customised approach considering industry, scale, and local environment can improve overall financial health and regulatory compliance

Talent has no race, has no face - but it has a skin colour: The 'appropriate femininity' with the case of Kurdish-Swedish Actress Evin Ahmad.

Sexist and misogynist attitudes towards actresses in the mainstream film industry and other media have been the target of feminists for decades. Stigmatized and stereotyped images of immigrants on the screen have also been scrutinized. However, very little attention has been given to the ways in which actresses with foreign background, not necessarily from Black communities, are portrayed and narrated. Addressing this issue would reveal how non-Western body images on screen are racialized according to certain Western beauty standards. Sweden is often described as the most gender-equal film industry in the world; however, this does not mean that marginalization and subordination of non-white actresses with foreign backgrounds, does not occur. Accordingly, using the framework of feminist film critique and drawing on the works of Homi Bhabba, Sara Ahmed and Patricia Hill-Collins, this article offers a reading of Swedish-Kurdish actress Evin Ahmad's experiences to demonstrate how 'beauty' and 'body' culture involve a complicated terrain around race, skin colour and body image. This article argues that a generalized ideology of beauty and stereotypical images of a Middle Eastern woman imposed on Ahmad demonstrate that values and attributes such as beauty, appearance and sexual attractiveness should be understood in the context of social and cultural relations, rather than as universally valued or devalued individual characteristics.

Google earth engine based assessment of soil loss using the RUSLE Model: A study of Cauvery Delta Zone, Tamil Nadu, India

Tamil Nadu is very susceptible to soil erosion due to its deforestation, urbanization, complicated terrain and heavy rainfall. The objective of this study was to estimate soil erosion in the Cauvery-delta zone (CDZ) of Tamil Nadu, India, using the Revised Universal Soil Loss Equation (RUSLE) model in Google Earth Engine (GEE) platform. The GEE environment provides a faster and better method for spatial output maps. Several parameters including runoff-rainfall erosivity factor (R), soil erodability factor (K), topographic factor (LS), cropping management factor (C), and support practice factor (P) takes into consideration for RUSLE model. The result revealed that the annual average soil loss within the Cauvery delta zone is approximately 49.08 t/hac/year (metric tonne per hectare per year). The study area has a 45 % very high erosion risk, 42.6 % severe erosion risk, and 8.4 % high risk. Other erosion risk classes, such as slight and moderate erosion, accounted for 3 % and 1 % of the total area, respectively. The results of the study indicate that GEE allow targeted solution to reduce future soil erosion.

Google earth engine based assessment of soil loss using the RUSLE Model: A study of Cauvery Delta Zone, Tamil Nadu, India

Tamil Nadu is very susceptible to soil erosion due to its deforestation, urbanization, complicated terrain and heavy rainfall. The objective of this study was to estimate soil erosion in the Cauvery-delta zone (CDZ) of Tamil Nadu, India, using the Revised Universal Soil Loss Equation (RUSLE) model in Google Earth Engine (GEE) platform. The GEE environment provides a faster and better method for spatial output maps. Several parameters including runoff-rainfall erosivity factor (R), soil erodability factor (K), topographic factor (LS), cropping management factor (C), and support practice factor (P) takes into consideration for RUSLE model. The result revealed that the annual average soil loss within the Cauvery delta zone is approximately 49.08 t/hac/year (metric tonne per hectare per year). The study area has a 45 % very high erosion risk, 42.6 % severe erosion risk, and 8.4 % high risk. Other erosion risk classes, such as slight and moderate erosion, accounted for 3 % and 1 % of the total area, respectively. The results of the study indicate that GEE allow targeted solution to reduce future soil erosion.

UAV-based edge computing system used in energy-saving offloading method

This paper proposes an offloading strategy based on unmanned aerial vehicle (UAV) managed computer resources to provide dependable communication and intensive processing power in complicated terrain. In order to reduce compute and offload user terminal energy consumption, a UAV-assisted edge computing model is built, taking into account the computing requirements of user terminals, the delay restrictions of computing jobs, and the energy limits of UAVs. The trajectory can be used to reduce the user terminal’s energy usage in the allotted amount of time. The simulation results demonstrate that the suggested approach is appropriate for various channel circumstances, allowing the user terminal to accomplish the work while outperforming existing benchmark systems in terms of energy usage. Optimizing the flight trajectory of the UAV will have a substantial impact when the signal-to-noise ratio SNR=20dB. The results demonstrate that, at T=5s, the UAV’s flying trajectory optimization strategy reduces energy consumption by 56.26%.

Region coverage-aware path planning for unmanned aerial vehicles: A systematic review

The use of unmanned aerial vehicles (UAVs) to carry out remote aerial surveys has become prominent in recent years. The UAV-based survey faces several operational issues, such as complicated terrain, limited UAV resources, obstacles, sensor limitations, and other environmental factors. In addition, the coverage plan includes numerous objectives, such as lowering path length, maximizing coverage, and limiting survey time, necessitating multi-objective optimization. UAVs require effective coverage path planning (CPP) to generate the ideal route. It involves determining the path which encompasses every point inside the required region under different constraints. The process automates the process of route determination for autonomous operation by considering various environmental constraints. In this paper, we explore and analyze the existing research on the various techniques used in coverage route planning for UAVs. It provides an overview of the current state-of-the-art CPP methods for UAVs. The study discusses the key challenges and requirements of CPP for UAVs and presents various approaches proposed in the literature to tackle these challenges. We explore a variety of geometric flight patterns for the area of interest having UAV deployment. It also features multi-UAV and multi-region coverage strategies, providing a new dimension to UAV-based operations. The energy consumption of UAVs during CPP is an essential factor, as it influences their flight length and mission duration. The design of the CPP algorithm is determined by the unique requirements of the UAV application, such as the size and form of the region to be mapped, the existence of obstacles, and the desired coverage resolution. Path planning strategies in a three-dimensional environment and dynamic coverage are also included in the study. Moreover, we compare the existing strategies using different performance metrics to evaluate the success of covering missions. Finally, the problems and unresolved concerns related to UAV coverage path planning are examined to provide valuable insights to the readers.

Nonlinear trends of vegetation changes in different geomorphologic zones and land use types of the Yangtze River basin, China

AbstractHow land use changes and geomorphologic zones impact on vegetation nonlinear trends remains unclear in economically developed areas with complicated terrain. This paper explores the nonlinear trends of vegetation changes with normalized vegetation index (NDVI) in the Yangtze River basin, China, and further analyzes the effect of geomorphologic zones and land use changes on the nonlinear trend. The results show that: (1) Although monotonic increasing is the main trend type of vegetation NDVI (32.46%), reversal trends from decreasing to increasing and from increasing to decreasing account for 11.87% and 24.95%, respectively. (2) The vegetation change is mainly monotonically increasing in low altitude and relief zones, while that is mainly a reversal trend in high altitude and relief zones, indicating an increased risk of vegetation degradation with altitude and relief increasing. (3) The trends in most land use types are mainly monotonically increasing, but those in urban, forest, and grassland are mainly from increasing to decreasing, with area percentages as high as 32.29%, 27.25%, and 35.97%, indicating degradation risk. (4) The conversion of cropland and wetland to forestland has greatly promoted the vegetation restoration. However, a risk of vegetation degradation exists in land conversions between grassland and other land use types, especially the afforestation of grassland. Over all, considering the effects of both geomorphic zones and land use changes can help us better explore the driving of the nonlinear trends of vegetation changes and understand the process of vegetation dynamics.

A sociological analysis: performance of global financial institutions, business ethics, and corporate governance

With the rapid advancement of technology, the 21st century has brought us a dynamic terrain that has given rise to extremely competitive markets. In addition to spurring innovation, technological developments have also resulted in a deterioration of public confidence in the banking industry, which has been made worse by recent high-profile cases of financial misbehavior. Businesses are under increasing pressure to operate well and sustainably for the good of their clients, shareholders, and the company as a whole. These pressures range from environmental concerns to human rights violations. Organizations must outline plans in order to successfully navigate this complicated terrain and address societal needs while ensuring future success. Companies that want to compete successfully in marketplaces with cutting-edge technology must address ethical issues. Businesses must find a careful balance between financial imperatives, environmental sustainability, and respecting human rights within their strategy frameworks in an era marked by widespread corporate disobedience and non-compliance. Public fear has been exacerbated by recently reported banking scandals, which include employee dishonesty such as opening bogus accounts, market manipulation schemes, and deficiencies in compliance processes. These violations, which go unpunished for long stretches of time, highlight how urgent it is that businesses have strong corporate social responsibility policies. According to this study, businesses that actively participate in corporate social responsibility (CSR) have a higher chance of long-term success, highlighting the importance of morality and social responsibility in overcoming the difficulties presented by modern markets.

Contesting Slave Masculinity in the American South

Contesting Slave Masculinity in the American South