About the repair of closed tubular drainage of the land reclamation section of an agricultural field in the Pskov region

On the lands of the Trigorskoye farm, in September 2020, an offsite seminar was held by the section of reclamation of agricultural lands of the Scientific Council of the Agrophysical Research Institute. The seminar participants included more than 30 specialists in the field of agricultural reclamation. The work on cleaning the tubular collector from the flow regulator well with the Poseidon installation with a jet flushing nozzle was demonstrated. The results of the removal of sludge from the tubular collector were verified by the method of excavation and extraction of pipes from the drainage line. Experts of the Agrophysical Research Institute, using an unmanned aerial vehicle, surveyed a section of the drainage reclamation system in order to determine the locations of faults in the closed tubular drainage. The results of the studies obtained will be used by the design and operating organizations of the Pskov region in the development of new technologies for restoring the operation of the drainage pipe drainage with its expired guaranteed service life.

Rescue Pericardial Drainage and Return Connected to ECMO for Aortic Rupture into the Pericardial Sac with Acute Type A Aortic Dissection

We present the first documented case of emergent pericardial drainage and return (PD-R) under extracorporeal membrane oxygenation (ECMO) for the management of aortic rupture into the pericardial sac caused by acute type A aortic dissection (AADA). An 83-year-old woman collapsed during an elective coronary intervention. ECMO was eventually required. Acute accumulation of pericardial effusion with aortic dissection was revealed by echocardiography. Percutaneous pericardial drainage was performed using a drainage line connected to the venous line of the ECMO system to maintain blood flow and blood pressure. After stabilization of the patient’s hemodynamics, immediate aortic repair was successfully performed and the patient was discharged with no neurological deficit. In cases of massive amounts of pericardial drainage and persistent hemorrhagic shock due to aortic rupture with AADA, PD-R connected to ECMO is useful while waiting for aortic repair.

Analysis of the Flood Performance of Stormwater Drainage Systems for Different Return Periods

Precipitation regimes and behaviours change depending on the climate change. As the duration of precipitation decreases its intensity increases. On the other hand, the density of buildings increases in urban areas, and drainage systems remain inadequate as a result of deterioration in the structure of natural streams and irregular structures. Due to the change in precipitation behaviour and the decrease in permeable surfaces in urban areas, urban floods lead to serious damage. In this study, it is aimed to analyse the flood performance of rainwater drainage systems currently serving in urban areas for precipitation with different repetition periods. For this purpose, the drainage line in Malatya provincial centre has been selected as the pilot application area. Considering the rainfall records observed in the past, a model was created for 15 minutes of precipitation and 2, 5 and 10 years repetition periods. In addition, the digital elevation model, drainage line and characteristic information and building layouts were taken into consideration in the application area. As a result of the analysis, flood spread maps were created. It has been observed that as the repetition period increases, the rainwater drainage line is insufficient in some areas and may cause loss of property and life.

Research on Application of Machine Vision in Robots for Live-Power Lines

The electric fire-exchanging operation is basically used to implement operation such as Wire stripping, drainage wire through the fastening wire clip, clamp bolt fastening, etc. Manual operation is time-consuming and laborious and has very high safety risks, so the automatic electrified ignition robot emerges as The Times require; The automatic operation method should accurately identify the position of wire and drainage line, so as to guide the robot to move and carry out the corresponding operation. Based on this, an intelligent binocular vision guidance method is proposed in this paper. The image data in the working space is collected by the binocular camera in real time, the wire is identified by the image segmentation technology, the wire is separated from the background, and the spatial pose of the wire is solved by the PNP and binocular stereo vision technology. Through YOLOV5 target detection, the position identification and positioning of the thread and clamp of the drainage line are realized, and the automatic fire ignition operation is finally guided by the manipulator. Experiments show that this method has the advantages of high accuracy, good stability and fast speed.

PEMBUATAN INFORMASI GEOSPASIAL SARANA DAN PRASARANA KELURAHAN WATES KABUPATEN KULON PROGO PADA SKALA 1:15.000

ABSTRAK Field Research Center (FRC) merupakan bagian dari program Teaching Industry Sekolah Vokasi Universitas Gadjah Mada. FRC dibangun bertujuan untuk mengembangkan hasil penelitian dan pengabdian agar menjadi sebuah produk yang dapat dimanfaatkan oleh masyarakat serta mendekatkan mahasiswa pada obyek materi pembelajaran agar menjadi lulusan yang siap bekerja. Rencana FRC akan dibangun di atas tanah seluas 6,5 hektar di Kelurahan Wates, Kabupaten Kulon Progo. Disekitar lokasi pembangunan FRC, terdiri atas kawasan penyangga seluas 29 hektar. Kawasan penyangganya terdiri atas berbagai berbagai sarana dan prasarana, seperti sarana pendidikan, kesehatan, pertahanan dan keamanan, jalan, sungai, rel kereta api, dan lain sebagainya. Penelitian ini bertujuan untuk menyajikan informasi geospasial sarana dan prasarana yang berada disekitar lokasi FRC. Data yang digunakan dalam penelitian ini terdiri atas data citra foto udara dan hasil dijitasi. Data citra foto udara diambil dengan menggunakan wahana pesawat tanpa awak (UAV) dengan tinggi terbang 270 meter dan ketelitian 0,775 pix. Data vektor yang dihasilkan dari proses dijitasi on-screen terdiri atas unsur geospasial bangunan (geometri poligon dan titik), jalan (geometri poligon), sungai (geometri poligon), drainase (geometri garis), rel kereta api (geometri garis), dan batas administrasi kelurahan (geometri garis). Masing-masing unsur geospasial disertai dengan data atribut yang diperoleh dari hasil survei lapangan. Sistem informasi geospasial sarana dan prasarana disajikan dalam skala 1:15.000. Sistem informasi geospasial ini diharapkan dapat membantu Kelurahan Wates dalam mengembangkan sarana prasarana yang terdapat pada sekitar lokasi FRC. Kata Kunci: Field Research Center, sistem informasi geospasial, sarana prasarana, peta skala besarABSTRACT Field Research Center (FRC) is part of Teaching Industry program of Vocational School. FRC was build to develop research and service result into products. The products utilized by the community and bring students closer to learning material objects in order to become graduates who are ready to work. FRC will be build on 6.5 hectares of land in Kelurahan Wates, Kulon Progo Regency. Around the location of the FRC construction consists of a 29 hectare supporting area. The supporting area consists of various facilities and infrastructure, such as education, health, defense and security facilities, roads, rivers, railroads, and so on. This study aims to present geospatial information for infrastructure around the FRC location. The data used in this study consisted of aerial photo image data and results of digitization. Aerial photo image data taken using a drone vehicle (UAV) with a height of 270 meters and accuracy of 0.775 pix. Vector data generated from digitizing on-screen process. These are consists of six geospatial elements, such as building (polygon geometry and dots), roads (polygon geometry), rivers (polygon geometry), drainage (line geometry), railroad tracks (line geometry), and boundaries village administration (line geometry). Each geospatial element accompanied by attribute data that obtained from field surveys. Geospatial information about infrastructure presented on big scale of 1: 15,000. This geospatial information expected to help Kelurahan Wates developing infrastructure around the FRC location. Keywords: Field Research Center, geospatial information system, infrastructures, big scale map

Construction of an Affordable Open-Design Recirculating Zebrafish Housing System

Recently, the zebrafish has gained in popularity as a vertebrate animal model for biomedical research. Commercial zebrafish housing systems are available and are designed to maximize stocking density of fish for a given space, but these systems are expensive and purchasing them may not be feasible for emerging laboratories with limited funding. In this article, we describe the construction of a simple and affordable recirculating zebrafish housing system. This system can be constructed in 3 working days, with materials readily available in hardware stores. The cost for construction of the system was only 3,000 MYR (750 USD). The system consists of a water reservoir, a supply line that delivers water to the shelves holding the zebrafish tanks, and a drainage line that receives water from both the supply line and the shelves containing the fish tanks and returns this water to the reservoir. This system also has a 3-stage filtration process to ensure that clean water is delivered to the zebrafish tank. The system can house up to 360 zebrafish. This low-cost housing system may make research using zebrafish feasible some laboratories.

The distribution and status of the Giant Burrowing Frog Heleioporus australiacus in the Shoalhaven region of south-eastern New South Wales

Surveys were conducted for the Giant Burrowing Frog Heleioporus australiacus within 50 km of Nowra, on the south coast of New South Wales using a variety of methods. Thirty-eight 250 m transects were surveyed at night for 30 min each and 0–12 adult frogs were detected during these searches. Additional diurnal searches for tadpoles proved to be the most efficient method to detect the species and locate breeding sites. Of 102 sites surveyed, fragmented populations were found at 27 by the presence of tadpoles and adult frogs. The vegetation at these sites was woodland and open forest with a dense shrublayer of heath, but was often ecotonal. Forty-six percent of the sites were within 100 m of cliff edges/waterfalls. The lithology of sites where the frog was found varied from Hawkesbury, Nowra and Snapper Point sandstones. The exception was a population south of Ulladulla that occurs on undifferentiated sediments, but at that site exposed sandstone and a sandy overlay was present. The location of tadpoles indicated that adults were highly selective of the section of drainage line used for breeding. Often these sites consisted of a few small pools in non-perennial creeks. Breeding behaviour was associated with late summer and autumn rain, but in some sites reproduction did not occur annually. Based on distribution and habitat preference, the region has five discrete populations. Urban development has fragmented populations.

Manipulator visual localization motion control for power cable mobile robot in dynamic-unstructured environment

Purpose To improve the operational efficiency and intelligence of live operation robots in dynamic-unstructured operation environments, this paper aims to propose a fuzzy logic-based method for the autonomous search and visual localization control of a manipulator end effector applied to a drainage plate bolt on a high-voltage transmission line. The proposed approach is based on a four-way video image information output from a dual-operation manipulator. Design/methodology/approach First, based on the structural characteristics of the drainage line, an autonomous search method for the drainage plate bolt and a mapping relationship between the autonomous search control parameters and the relative posture of the operation manipulator-drainage line are proposed. The posture control parameters of the dual manipulators can then be obtained, and a two-dimensional fuzzy controller is designed with the posture offset distance and the posture offset angle as its input signals. This enables the localization control of the bolt and nut alignment to be realized through a visual process. Findings The proposed fuzzy control algorithm is used for bolt location control, and its performance is compared with that of the conventional approach. The simulation results indicate that the fuzzy control algorithm greatly improves the localization accuracy and operational efficiency of live operation robots. Originality/value Field operation experiments on actual transmission lines verify that the fuzzy control-based visual localization control of the robot manipulator has great engineering practicality. Therefore, the proposed method further improves operational intelligence compared with conventional algorithms.

Using thermochromism to simulate blood oxygenation in extracorporeal membrane oxygenation

Introduction: Extracorporeal membrane oxygenation (ECMO) training programs employ real ECMO components, causing them to be extremely expensive while offering little realism in terms of blood oxygenation and pressure. To overcome those limitations, we are developing a standalone modular ECMO simulator that reproduces ECMO’s visual, audio and haptic cues using affordable mechanisms. We present a central component of this simulator, capable of visually reproducing blood oxygenation color change using thermochromism. Methods: Our simulated ECMO circuit consists of two physically distant modules, responsible for adding and withdrawing heat from a thermochromic fluid. This manipulation of heat creates a temperature difference between the fluid in the drainage line and the fluid in the return line of the circuit and, hence, a color difference. Results: Thermochromic ink mixed with concentrated dyes was used to create a recipe for a realistic and affordable blood-colored fluid. The implemented “ECMO circuit” reproduced blood’s oxygenation and deoxygenation color difference or lack thereof. The heat control circuit costs 300 USD to build and the thermochromic fluid costs 40 USD/L. During a ten-hour in situ demonstration, nineteen ECMO specialists rated the fidelity of the oxygenated and deoxygenated “blood” and the color contrast between them as highly realistic. Conclusions: Using low-cost yet high-fidelity simulation mechanisms, we implemented the central subsystem of our modular ECMO simulator, which creates the look and feel of an ECMO circuit without using an actual one.