Guidance Method Research Articles

Three-Dimensional Cooperative Surrounding and Capturing Guidance for Intercepting Superior Target with Multi-Constraints

A three-dimensional cooperative surrounding and capturing guidance (3D-CSCG) is proposed for the cooperative interception against a superior target in the fighter aircraft's self-protection. The interceptors with lower velocity and inferior acceleration compared to the target need to satisfy constraints including impact angle, cooperation time and limited overload. The 3D-CSCG is designed to enable the interceptor group to surround and capture the target cooperatively by leveraging the numerical superiority of the interceptor group. To solve this problem, this paper firstly designs a dynamic capturing strategy based on the projection coverage method of the three-dimensional reachable domain. This strategy predicts the target maneuvering domain through the covariance method to ensure the effectiveness of cooperative interception and provide interception conditions. Moreover, this strategy is also the basis for the coupled cooperative guidance problem, realizing a truly integrated design of cooperative guidance. Secondly, to address the cooperative guidance problem, numerical guidance method based on model predictive static programming (MPSP) are employed. The efficacy, superiority, sensitivity, and robustness of the 3D-CSCG guidance law are systematically assessed through a series of numerical simulations including the comparisons with the cooperative biased proportional navigation guidance Law (CBPNG).

Fine-Needle Aspiration Biopsy of Adrenal Gland Lesions: The Roles of Image Guidance, Rapid On-Site Evaluation and Additional Tissue Sampling.

An accurate fine-needle aspiration (FNA) diagnosis of adrenal lesions may be challenging. This study was to investigate roles of imaging guidance, rapid on-site evaluation (ROSE) and additional tissue sampling in FNA diagnosis of adrenal lesions. Adrenal FNA cases were retrieved from pathology archive. Patients' demographics, lesion size and location, imaging guidance methods, cytologic diagnoses and histopathologic diagnoses were reviewed and analysed. The study cohort included 72 cases of left (86%) and right (14%) adrenal lesions. Endoscopic ultrasound (EUS) and computed tomography (CT) were used in 47 (65%) and 25 (35%) cases, respectively. Left adrenal lesions were sampled mostly by EUS-FNA (73%), whereas right adrenal lesions by CT-guided FNA (80%). There were no differences between the EUS-FNA and CT-FNA groups in terms of non-diagnostic rate and cytologic diagnostic categories. The non-diagnostic rate and cytologic diagnostic categories were the same between ROSE and non-ROSE groups. In a subset of 18 cases with concurrent core tissue biopsy, a definite diagnosis was rendered in all biopsy cases including three cases with a non-diagnostic or indeterminate cytology diagnosis. Our study demonstrates that FNA has great efficacy for evaluation of adrenal lesions, either via EUS or CT guidance. Incorporation of ROSE evaluation into FNA procedure does not directly affect the performance of FNA biopsy but may help direct additional tissue sampling to salvage the cases with a non-diagnostic or indeterminate cytology diagnosis, increasing diagnostic yield.

Sustainability Benefit Evaluation and Optimization of Rural Public Spaces Under Self-Organization Theory

Agriculture-oriented rural areas represent one of the forms of specialized agricultural practices and economic development. Public spaces serve as critical carriers within the rural spatial system. Rural public spaces are divided into two forms: explicit spaces and implicit spaces. The interaction between these forms significantly influences the morphological evolution of rural public spaces. This study takes the ancient village cluster in Anyi, Nanchang City, China as a case study. By collecting POI (Point of Interest) data and conducting surveys on visitors’ landscape preferences, it employs a life circle spatial division method and the VEISD (Village Evaluation Indicators for Sustainable Development) entropy model to evaluate the sustainability benefits of rural public spaces. Based on the evaluation results, the study proposes a control and guidance method for public spaces under self-organization theory. This method leverages the interference effects of explicit rural public spaces on implicit spaces to optimize rural public spaces. The study focuses on the planning and renovation of public space nodes in Luotian Village. By adjusting the sub-indicator “Village Public Environment Construction D22”, it validates the scientific robustness of the systems analysis theory and the VEISD framework. By adjusting the spatial layout and attributes of a critical spatial node—the Ancient Camphor Tree Square in Luotian Village—within rural public space planning, the study advances the guidance and control of public spaces during the self-organization evolution of rural areas. It enhances the openness of spatial forms and the functional integration of public space nodes. The results demonstrate that this method can analyze the vitality characteristics of factors within subsystems through the layout and indicator system of rural public spaces. It also validates the findings via correlation tests with the demands for POI and landscape preferences, ultimately constructing the VEISD framework for rural public spaces. This research provides theoretical support for optimizing the resource transformation and utilization of rural public spaces, offering a reference model for the sustainable development of rural areas.

Radiation Exposure Analysis on 274 Patients With Vertebral Augmentation Using the Surgivisio Intraoperative Navigation System.

Surgeons' reliance on intraoperative fluoroscopy during vertebroplasty procedures has raised concerns regarding the level of patient and surgeon radiation. Navigation systems have shown a potential to reduce the overall patient and medical staff exposure during dose exposure studies. The main objective of this study was to determine whether the Surgivisio platform (eCential Robotics, France), a unified imaging and navigation platform, lowers the patient dose during routine clinical usage as compared with published fluoroscopy and other navigation options that are published in the literature. To accomplish this, we evaluated the radiation exposure dose during routine vertebroplasty procedures in which the surgeon was not trying to limit radiation and then compared the results to best-case dose assessment studies. Since a decreased radiation dose can lead to decreased image quality, we also quantified the surgeon's perception of image quality and ease of use. Two hundred and seventy-four Surgivisio-assisted vertebral augmentations were pooled from a broader 1694-patient protocol (not focusing on radiation outcomes) and analyzed. We measured a median dose-area product and effective dose equal to 3.47 Gy.cm² and 0.81 mSv. The 3-dimensional image acquisitions contributed to 56.3% of the total dose-area product. When screening the literature, fluoroscopy dose levels (8.37-15.1 Gy.cm²) and navigation dose levels (9.12-9.83 Gy.cm²) were generally higher than those delivered with the Surgivisio protocol. Surgeon satisfaction for image quality and overall system experience was 95.8% and 85% for ease of use. The Surgivisio platform provided surgeons with high-quality images and ease of use. Since the surgeon is out of the room during the 3-dimensional image acquisition, this also substantially decreased their radiation exposure. This study demonstrates the efficiency of the Surgivisio platform to assist surgeons during vertebral augmentations, as the reported radiation levels are reduced in routine cases compared with published scenarios reported for other guidance methods.

Finite-Time Path-Following Control of Underactuated AUVs with Actuator Limits Using Disturbance Observer-Based Backstepping Control

This paper presents a three-dimensional (3D) robust adaptive finite-time path-following controller for underactuated Autonomous Underwater Vehicles (AUVs), addressing model uncertainties, external disturbances, and actuator magnitude and rate saturations. A path-following error system is built in a path frame using the virtual guidance method. The proposed cascaded closed-loop control scheme can be described in two separate steps: (1) A kinematic law based on a finite-time backstepping control (FTBSC) is introduced to transform the 3D path-following position errors into the command velocities; (2) The actual control inputs are designed in the dynamic controller using an adaptive fixed-time disturbance observer (AFTDO)-based FTBSC to stabilize the velocity tracking errors. Moreover, the adverse effects of magnitude and rate saturations are reduced by an auxiliary compensation system. A Lyapunov-based stability analysis proves that the path-following errors converge to an arbitrarily small region around zero within a finite time. Comparative simulations illustrate the effectiveness and robustness of the proposed controller.

Damped Iterative Explicit Guidance for Multistage Rockets with Thrust Drop Faults

A damped iterative explicit guidance (DIEG) algorithm is proposed to address the problem of the insufficient convergence of classical explicit guidance methods in the event of thrust drop faults in multistage rockets. Based on the iterative guidance mode (IGM) and powered explicit guidance (PEG), this method is enhanced in three aspects: (1) an accurate transversality condition is derived and applied in the dimension-reduction framework instead of using a simplified assumption; (2) the Gauss–Legendre quadrature formula (GLQF) is adopted to increase the accuracy of the method by addressing the issue of excessive errors in calculating thrust integration using linearization methods based on a small quantity assumption under fault conditions; and (3) a damping factor for solving the time-to-go is introduced to avoid the chattering phenomenon and enhance convergence. A numerical simulation was conducted in single- and multistage mission scenarios by gradually reducing the engine thrust to compare the performance of DIEG and PEG. The results show that DIEG has a much larger convergence range than PEG and has fuel optimality similar to that of the optimization method in most fault scenarios. Finally, the robustness of DIEG under various deviations is verified through Monte Carlo simulation.

Iliosacral screw osteosynthesis - state of the art.

Iliosacral screw osteosynthesis is a widely recognized technique for stabilizing unstable posterior pelvic ring injuries, offering notable advantages, including enhanced mechanical stability, minimal invasiveness, reduced blood loss, and lower infection rates. However, the procedure presents technical challenges due to the complex anatomy of the sacrum and the proximity of critical neurovascular structures. While conventional fluoroscopy remains the primary method for intraoperative guidance, precise preoperative planning using multiplanar reconstructions and three-dimensional volume rendering is crucial for ensuring accurate placement of iliosacral or transsacral screws. Particular attention must be given to the preoperative evaluation of both the iliosacral and transsacral corridors, as anatomical variations may restrict the available space for screw insertion. This review aims to highlight the essential aspects of sacroiliac osteosynthesis, with a focus on the critical role of thorough preoperative planning and its impact on achieving successful surgical outcomes.

Perencanaan dan Pengorganisasian Layanan Bimbingan Manasik Haji: Studi Kasus pada KBIH Al-Bayt Tours Demak

This study aims to examine the planning and organization of hajj guidance services at KBIH Al-Bayt Tours Demak, focusing on the effectiveness of planning, structured organization, and the application of andragogy methods in guidance services. Using a qualitative approach with field research methods, data were collected through observation, in-depth interviews, and documentation of guidance activities. Data analysis was carried out descriptively based on the Miles and Huberman model, which includes data reduction, data presentation, and drawing conclusions. The results of the study indicate that the planning of guidance services at KBIH Al-Bayt Tours Demak was carried out effectively and systematically, allowing pilgrims to understand and prepare for the hajj optimally. The organization of guidance was carried out with a clear structure, proper division of tasks, and good coordination. In addition, the andragogy approach used in guidance includes participatory and practice-oriented learning methods, in accordance with the characteristics of adult learning. This study provides suggestions for KBIH Al-Bayt Tours to continue to improve the quality of guidance services by conducting periodic evaluations and updating guidance materials and methods. The use of technology and interactive learning media can be an alternative to increase congregation involvement in learning.

Autonomous Landing of a Fixed‐Wing UAV With RTK GNSS and MEMS IMU

Autonomous landing system is an important part of unmanned aerial vehicle (UAV) autonomous flight. Large fixed‐wing UAVs often consume more onboard space and computing resources. With the improvement of system integration and the reduction of high‐performance global navigation satellite system (GNSS) costs, real‐time kinematic (RTK) GNSS has been widely used in small‐scale and low‐cost fixed‐wing UAVs. This article uses less onboard hardware and ground facility requirements to design an autonomous taking off and landing system suitable for general fixed‐wing UAVs. A modified gradient descent attitude estimator, based on microelectromechanical system (MEMS) inertial measurement unit (IMU) and RTK GNSS, and a guidance method based on a tracking differentiator for using in a high dynamic environment are proposed, and circular path following and vertical transient simulations are performed. The simulation results show that this method can improve attitude estimation accuracy, motion control accuracy, and altitudinal transient quality. Finally, the actual flight test verifies its feasibility in the actual environment. The flight test results prove that it is feasible to implement the autonomous landing process of fixed‐wing UAV with the proposed system and method.

Beyond Correlation: Incorporating Counterfactual Guidance to Better Support Exploratory Visual Analysis.

Providing effective guidance for users has long been an important and challenging task for efficient exploratory visual analytics, especially when selecting variables for visualization in high-dimensional datasets. Correlation is the most widely applied metric for guidance in statistical and analytical tools, however a reliance on correlation may lead users towards false positives when interpreting causal relations in the data. In this work, inspired by prior insights on the benefits of counterfactual visualization in supporting visual causal inference, we propose a novel, simple, and efficient counterfactual guidance method to enhance causal inference performance in guided exploratory analytics based on insights and concerns gathered from expert interviews. Our technique aims to capitalize on the benefits of counterfactual approaches while reducing their complexity for users. We integrated counterfactual guidance into an exploratory visual analytics system, and using a synthetically generated ground-truth causal dataset, conducted a comparative user study and evaluated to what extent counterfactual guidance can help lead users to more precise visual causal inferences. The results suggest that counterfactual guidance improved visual causal inference performance, and also led to different exploratory behaviors compared to correlation-based guidance. Based on these findings, we offer future directions and challenges for incorporating counterfactual guidance to better support exploratory visual analytics.

Case Management of Counseling Guidance for Inmates Experience Stress During Early Coaching

The phenomenon of stress in prisoners is currently an urgency for various researchers. This stress occurs because it is experienced due to changes in the atmosphere of the general public, but entering a criminal facility makes them feel uncomfortable, starting from mental pressure, anxiety, anti-social behavior, and even suicide due to stress. Therefore, there is a need for case management so that inmates can face situations of stress and fear when undergoing initial formation in state detention centers. This study used a qualitative research method with a case study research design, employing observation, study documentation, and interviews for data collection. There were 6 informants, 1 of whom was a prisoner, along with 1 guard officer, 1 registration officer, and 3 inmates. This research emphasizes interactive data analysis and qualitative confirmation of source triangulation results. The object of research lies in how prisoners can undergo an excellent initial coaching period to manage stressful situations and fears. The results of this research indicate that correctional guardians have a role in providing counseling guidance on the stress of inmates during initial training at the Painan Detention Center, where the stress levels of inmates are very high. The effective counseling guidance methods or techniques used include a religious approach to reduce stress on inmates during the initial training period. This action seeks to reduce stress levels and provide assistance to prisoners. This research presents a novelty that lies in the experience of stress management during the initial guidance of inmates.

Flood Hazard Assessment Using Weather Radar Data in Athens, Greece

Weather radar plays a critical role in flash flood forecasting, providing an effective and comprehensive guide for the identification of possible flood-prone areas. However, the utilization of radar precipitation data remains limited in current research and applications, particularly in addressing flash flood hazards in complex environments such as in Athens, Greece. To address this gap, this study introduces the Gridded Flash Flood Guidance (GFFG) method, a short-term flash flood forecasting and warning technology based on radar precipitation and hydrological model coupling, and implements it in the region of Athens, Greece. The GFFG system improves upon the traditional flash flood guidance (FFG) concept by better integrating the weather radar dataset’s spatial and temporal flexibility, leading to increased resolution results. Results from six flood events underscore its ability to identify high-risk areas dynamically, with urban regions frequently flagged for flooding unless initial soil moisture conditions are low. Moreover, the sensitivity analysis of the system showed that the most crucial parameter apart from rainfall input is the soil moisture conditions, which define the amount of effective rainfall. This study highlights the significance of incorporating radar precipitation and real-time soil moisture assessments to improve flood prediction accuracy and provide valuable flood risk assessments.

ПЕДАГОГІЧНІ УМОВИ ФОРМУВАННЯ ГОТОВНОСТІ МАЙБУТНІХ ПЕДАГОГІВ ПРОФЕСІЙНОГО НАВЧАННЯ ДО ПРОФОРІЄНТАЦІЙНОЇ ДІЯЛЬНОСТІ СЕРЕД СТАРШОКЛАСНИКІВ

Introduction. The quality and effectiveness of career guidance work depend on the level of career guidance competence of educators. Therefore, vocational education teachers need to be well-oriented in the modern world of professions and methods of career guidance. In this regard, there is a necessity to develop future educators' readiness for career guidance. This requires the development and implementation of effective pedagogical conditions that will contribute to successfully fostering such readiness. Purpose ‒ justification of a set of pedagogical conditions that ensure the formation of readiness among future vocational education teachers for career guidance work with high school students.. Methods: analysis of practical problem, recent researches and publications; generalization of the results of the study. Results. It is emphasized that, to successfully fulfill the social responsibility of familiarizing high school students with modern professions, a teacher must possess specific career guidance knowledge and skills that enhance the effectiveness of this work. At the same time, it is noted that students in pedagogical specialties often lack sufficient mastery of educational materials related to future career guidance activities, complicating their preparation for this task. The simultaneous implementation of effective pedagogical conditions in the educational process contributes not only to the qualitative content and methodological enrichment but also to the optimization of the training process for future vocational education teachers for career guidance activities. It is demonstrated that such pedagogical conditions are aimed at developing career-oriented thinking, supporting the professional and personal formation of future teachers, and equipping them with the necessary competence-based knowledge and practical skills for effective career guidance work. Originality.The readiness of future vocational education teachers for career guidance activities with high school students is examined through the lens of the professional training system. Conclusion. The formation of the professional orientation competence of vocational education teachers is achieved under the following conditions: the implementation of innovative technologies in the educational process; ensuring students understand the importance of vocational orientation work; combining the efforts of teachers from all disciplines; the realization of tasks of a vocational orientation nature during pedagogical practice; and involving students in organizing collaborative work between schools, vocational orientation organizations, and vocational education institutions Keywords: future vocational education teachers, readiness for career guidance activities, pedagogical conditions, professional training.

A dual-modal semantic guidance and differential feature complementation fusion method for infrared and visible image

A dual-modal semantic guidance and differential feature complementation fusion method for infrared and visible image

Laser-guided percutaneous microwave ablation for lung nodules: a promising approach with reduced operation time

BackgroundPulmonary nodule ablation is an effective method for treating pulmonary nodules. This study is based on the traditional CT-guided percutaneous microwave ablation (MWA) of pulmonary nodules. By comparing laser guidance technology with freehand method, this study aims to explore the safety and efficacy and patients’ pain scores of these two approaches.MethodsThis study retrospectively analyzed 126 patients who underwent CT-guided percutaneous lung ablation at the First Affiliated Hospital of Soochow University from April 2020 to April 2024. Based on the guidance method, we divided those patients into the laser guidance group and the freehand group. The primary outcome such as operation time, the number of ablation needle adjustments, postoperative pain scores, postoperative hospital stay, and postoperative complications were analyzed.ResultsThe laser guidance group had a significantly shorter mean operation time compared to the freehand group (39.3 ± 13.65 min vs. 43.82 ± 19.12 min, p < 0.01), and in the laser guidance group, fewer ablation needle adjustments were required than in the freehand group (3.3 ± 1.34 time vs. 4.37 ± 1.39 times, p < 0.001). As compared to the freehand group, the laser guidance group had fewer cases of mild pneumothorax (13.16% vs. 38.33%, p < 0.05). The postoperative pain score at 1 h and 1 day of the two groups showed no statistical difference.ConclusionBoth methods are safe and effective. The laser guidance technology significantly reduces the number of puncture adjustments and the operation time compared to the freehand method. Laser guidance technology effectively reduces the incidence of mild pneumothorax.

Unlocking Spiritual Enlightenment: A Critical Study of Idries Shah’s The Way of the Sufi

The Way of the Sufi (2015) stands as a significant signpost into Sufi literature, offering profound insights into the mystical tradition of Sufism, and introducing revered Sufi figures, their ideologies, and texts. This study analyses Shah's main work, focusing on its portrayal of Sufi philosophy, enlightenment practices, and transmission of spiritual knowledge through literary styles used in the book. The study argues that Sufi literature’s effective method of spiritual guidance and enlightenment is empowered by the distinctive narrative style and philosophical themes presented by the Sufis in the form of poems or stories. This study highlights the significance of Sufi literature in general, its literary style, and the spiritual accomplishments presented. A comprehensive examination of Shah’s thoughts is aimed at revealing the profound depths of Sufi teachings to offer new insights and develop an understanding of Sufi’s philosophical tenets, deep divine love, and broader cultural implications of spiritual devotion.

Approaches to Optimization of Guidance Methods for High-Speed Intensely Maneuvering Targets. Part 1. Justification of Requirements for Ways of Optimization of Guidance Methods

Approaches to Optimization of Guidance Methods for High-Speed Intensely Maneuvering Targets. Part 1. Justification of Requirements for Ways of Optimization of Guidance Methods

Pengaruh Konseling Islami terhadap Pembentukan Karakter Siswa di Madrasah

Student character development is one of the main goals of education, especially in madrasas based on Islamic teachings. However, there are still many students who have difficulty internalizing Islamic values in their daily lives. This is influenced by a lack of spiritual understanding, weak self-control, and less than optimal guidance methods. Islamic counseling, which is based on the principles of the Qur'an and Hadith, is a relevant holistic approach to strengthen students' Islamic character through the cultivation of spiritual, intellectual, and social values. This study aims to analyze the effect of Islamic counseling on students' character building in madrasah, identify the most affected character aspects, and provide recommendations for integrating Islamic counseling services into the Guidance and Counseling program. Using a qualitative approach with a case study method, the research involved in-depth interviews, participatory observation, and document analysis. Data were collected from students, guidance teachers, and homeroom teachers to explore the experience and impact of Islamic counseling on students' characters, such as honesty, responsibility, discipline, and empathy. The results showed that Islamic counseling is effective in improving student character, especially in terms of self-control and social interaction. The findings support the importance of integrating Islamic counseling services as part of the educational program in madrasah to achieve more optimal character building. This research is expected to contribute to the development of a structured and effective Islamic counseling program.

A novel augmented reality-based simulator for enhancing orthopedic surgical training.

Total Hip Arthroplasty (THA) is a well-established and common orthopedic surgery. Due to the complexity involved in THA, orthopedic surgeons require rigorous training. However, the current gold standard, the tutor-guided and -evaluated apprenticeship model is time-consuming, costly, and poses risks to patients. There is a pressing need for additional training resources to enhance the efficiency and safety of the training process. In this work, we present a novel Augmented Reality (AR)-based simulator designed for THA that helps enable a new self-paced training and learning paradigm without the need for instructors. The simulator reduces the need for instructors by integrating an AR guidance module and an automated performance evaluation module. Three types of AR guidance were developed: Overlay, Virtual Twin, and Sectional Views. A feasibility study was conducted with five resident surgeons and two senior surgeons to compare these guidance methods quantitatively and qualitatively. The automated performance evaluation module was assessed against manual performance evaluation using Bland-Altman analysis with limits of agreement (LoA) and Mann-Whitney U tests. The quantitative feasibility results indicate the efficacy of the developed AR guidance, characterized by mean transitional and rotational deviation errors below 3 mm and 3 degrees. Based on the qualitative results, we provide recommendations for efficient AR guidance designs. The Bland-Altman analysis results (0.22±1.32mm with LoA -2.37 to 2.81 mm for distance deviation, 0.94±2.41 degrees with LoA -3.78 to 5.66 degrees for yaw deviation, -0.34±1.30 degrees with LoA -2.90 to 2.22 degrees for pitch deviation) and p-values of Mann-Whitney U tests (0.64 for distance deviation, 0.12 for yaw deviation, 0.11 for pitch deviation) indicate no statistically significant differences between the automated and manual performance evaluation at a significance level of 0.05. This work shows the potential of AR-based simulators in introducing a novel, data-driven approach to open surgery training in orthopedics, enabling surgeons to individually assess and improve their progress.

Integrasi Interkoneksi Metode Bimbingan Konseling Islam Berlandasan Hadis Nabawi

The Prophet’s Hadith is everything that is given from the Prophet SAW both in the from of eords, deeds, takrir, nature and things about the Prophet. The purpose of this study is to determine the integration of Islamic Counselig Guidance Based on the Prophet’s Hadith. The method used in this study is a literature review. Islamic Counseling Guidance methods that are relevant as Islamic Counseling Guidance methods include interview methods, advice methods, home visit methods.