Impact of the epidemic on the world economy

The impact of the epidemic on the global economy has exposed the fragility and complexity of the internal and external economic system, and the global economic situation is not optimistic. Taking the epidemic as an example, this paper analyzed the impact of emergencies on the global economy from multiple perspectives. The outbreak of the epidemic has made most offline businesses shut down overnight. At the same time, it has also led to the rapid development of online economy, such as online education, home office software, video entertainment and so on. The outbreak and spread of the epidemic has promoted the digital upgrading of all walks of life, including online government affairs, commerce, science, education, culture and health organization, operation and maintenance. The era of digital economy has come, and digitization is the general trend.

PELATIHAN PEMBUATAN MEDIA PEMBELAJARAN MENGGUNAKAN POWERPOINT SCREEN RECORDING BAGI GURU DI SMP KESATRIAN 2 SEMARANG

ABSTRAKPandemi covid 19 memang membawa dampak yang sangat besar bagi dunia dan bagi bangsa Indonesia pada khususnya. Dunia pendidikan yang biasanya bisa bertemu tatap muka antara siswa dan guru atauu mahasiswa dengan dosen, karena pandemi maka pembelajaran dilaksanakan secara online atau pembelajaran jarak jauh. Tantangan yang dihadapi oleh para pendidik di era pandemi ini adalah bagaimana harus merevisi dan merubah media pembelajaran dan strategi pembelajaran yang harus dibuat supaya siswa bisa memahami materi yang diberikan. Powerpoint merupakan salah satu bagian dari software Microsoft office yang biasa digunakan untuk membuat presentasi ataupun media pembelajaran. Tujuan dari kegiatan ini untuk meningkatkan pengetahuan dan pelatihan tentang pemanfaatan powerpoint screen recording. Metode pelaksanaan pengabdian ini yaitu identifikasi permasalahan, pendekatan penyelesaian masalah dan hasilnya 40 peserta akan menggunakan manfaat dari pelatihan untuk proses belajar mengajar di sekolah, dan 42 peserta menyatkan bahwa pelatihan tersebut sangat bermanfaat dalam proses kegiatan pembelajaran. Kata kunci: powerpoint screen recording; PJJ ABSTRACTThe COVID-19 pandemic has had a huge impact on the world and the Indonesian people in particular. The world of education is usually able to meet face-to-face between students and teachers or students and lecturers, because of the pandemic, learning is carried out online or distance learning. The challenge faced by educators in this pandemic era is how to revise and change learning media and learning strategies that must be made so that students can understand the material provided. Powerpoint is one part of Microsoft office software which is commonly used to make presentations or learning media. The purpose of this activity is to increase knowledge and training on the use of powerpoint screen recording. The method of implementing this service is problem identification, problem solving approach and the result is that 40 participants will use the benefits of the training for the teaching and learning process in schools, and 42 participants stated that the training was very useful in the process of learning activities. Keywords: powerpoint screen recording; PJJ

CALCULATION OF RELIABILITY OF REINFORCED CONCRETE FLIGHT STRUCTURES

A large number of bridges are operated on the roads of Ukraine. The increase in the intensity and speed of traffic leads to qualitative changes in the operating conditions of bridge structures, which is characterized by a sharp increase in the number of cycles under load of bridge elements, and to the development of damage in them. For trouble-free operation and efficient use of bridge structures it is very important to have reliable estimates of the actual load capacity and resource, taking into account the loads, material quality, nature of the structure. The solution of the problem in this statement is possible only on the basis of the theory of reliability. However, its application to specific assessments of durability and reliability of structures is associated with the solution of a set of issues: the identification of patterns of change of various parameters, the accumulation of reliable and easy to calculate statistics on loads and mechanical characteristics of materials, etc. It is necessary to know that the strength of the material (sample) of the structural element and the structure as a whole are completely different things. The article considers a new design of reinforced concrete girder structure, using perforated metal elements and an effective reinforced concrete slab of the carriageway. On its basis, a computational model in the form of a finite-element model built in the SCAD-Office software package is formed. As a result of calculations, the components of the stress-strain state of the structure are obtained. Based on the obtained results, the reliability of the structure was calculatedunder the influence of modern regulatory loads.

Studi Pemisahan Aliran Dasar Metode Local Minimum Method Daerah Aliran Sungai Miu

The two main elements of a river flow hydrograph are direct runoff and baseflow. Base flow is a flow that comes from groundwater and it is available during the rainy and dry seasons. Information of baseflow value of a watershed has an important meaning in efforts to develop and manage water resources, including the provision of clean water, irrigation systems, flood management and others. Miu watershed located in Sigi Regency often experiences natural disasters such as floods and droughts that occur almost every year, which is the research location with an area of 65,452.01 Ha. This study aims to determine the value of baseflow using the Local Minimum Method and to find out whether this method can be used for baseflow modeling in research watersheds. This study was conducted using Hydro Office software with input data in the form of daily discharge data from 2004 to 2013. The average baseflow value obtained was 5.43 m3/s. The process of calibrating the baseflow value by taking flow data in the dry season where there is no rainfall input. It is obtained that BFI have value an average of 0.89. This value indicates that the Miu watershed has high storage permeability characteristics, The Miu watershed has quite stable flow during dry periods, because the greater the BFI value, the better the water supply in a watershed. In the statistical test, the observed discharge is the discharge data from the measurement results for the period 2004-2013, while the calculated discharge is the result of the estimated base flow value obtained using the graphical method. From the results of the statistical test of RMSE and R2, the RMSE value was 0.147 and the R2 value was 0.751. Both statistical tests show that the local minimum method has a fairly good performance in modeling the base flow in the Miu watershed.

WENNER'S CONFIGURATION GEOELECTRIC METHOD FOR THE INTERPRETATION OF THE SUBSURFACE STRUCTURES OF PANUNGKIRAN VILLAGE

<p><em>A research has been carried out which aims to determine the subsurface structure using the geoelectric method in Panungkiran Village, Kab. Deli Serdang, Prov. North Sumatra Geoelectric data retrieval uses the Wenner configuration to determine the distribution and depth of subsurface structures in Panungkiran Village, Deli Serdang Regency. Prov. North Sumatra Data collection is 1 track with a length of 90 meters, Data processing in the study using MS office software Excel Notepad, and RES2DINV The results of the measurements consist of several types which are distinguished based on the range of resistivity values, namely in the range of 34.0-3188 2m interpreted by lithological layers topsoil (34.0-65.1</em> Ωm<em>), sandstone (65.1-1252</em> Ωm<em>) weathered tr</em><em>a</em><em>vertine limestone (125-456</em> Ωm<em>), fresh trvertine limestone (456-3188</em> Ωm<em>), and resistivity &gt;3188 Qm is interpreted as a cave at a depth of 9-12 meters.</em><em></em></p>

Optimization of the Weighted Multi-Facility Location Problem Using MS Excel

This article presents the possibilities in solving the Weighted Multi-Facility Location Problem and its related optimization tasks using a widely available office software—MS Excel with the Solver add-in. To verify the proposed technique, a set of benchmark instances with various point topologies (regular, combination of regular and random, and random) was designed. The optimization results are compared with results achieved by a metaheuristic algorithm based on simulated annealing principles. The influence of the hardware configuration on the performance achieved by MS Excel Solver is also examined and discussed from both the execution time and accuracy perspectives. The experiments showed that this widely available office software is practical for solving even relatively complex optimization tasks (Weighted Multi-Facility Location Problem with 100 points and 20 centers, which consists of 40 continuous optimization variables in two-dimensional space) with sufficient quality for many real-world applications. The method used is described in detail and step-by-step using an example.

Development of sorting algoritms for recording temperature in the university laboratory of the "Smart Home" model

Research work has been devoted to the measurement methods of temperature values in “Smart Home” type models and creation of algorithms by means of these methods. To solve the problem, most popular sorting algorithms were analysed and as a result fastest and most efficient methods were spotted among them. Chosen sorting algorithms were built and tested in c++ programming language. Quick sort algorithms were created in Arduino IDE and temperature data logger device was constructed. All of the sorted array elements were visualised in Excel Office software and working prinsiple and order of algorithms were explained. 3-Way QiuckSort method based on “Dutch National Flag” algorithm is tested for arrays which have lots of redundant elements. Key words: Arduino, sensors, QuickSort, sorting, parametrs, program code

Cloud-Nutzung in der Industrie 4.0

Nachdem sich die Nutzung von Cloud-Technologien in administrativen Bereichen von Unternehmen (z. B. Office-Software, Dokumentenmanagement, Unified Communications) inzwischen etabliert hat, drängen diese verstärkt in die Realität der industriellen Fertigung vor. Um bei deren Einführung möglichst methodisch und effizient vorgehen zu können, zeigt der Beitrag anhand eines Sechs-Dimensionen-Modells entsprechende Handlungsfelder und Risikofaktoren auf, die den Erfolg von Implementierungsprojekten unterstützen bzw. beeinflussen.

Proposals for the construction of overpass structures and transport hubs for the high-speed highway in St. Petersburg

Background: As part of student research at St. Petersburg architectural-construction University continues to develop alternative proposals for the creation of a circumferential highway at the boundaries of communication areas of St. Petersburg and Leningrad region. The article presents the results of research works on optimization of routing highways, according to the architectural layout of buildings, transport hubs, to study the effects the pre-tension of the puffs and the guys at the reduction of efforts and deformations of the main elements of the highway, the calculations of the designs of the most high and loaded sea area. The construction of the 8-high-speed transport highway was upgraded due to restrictions related to the reconstruction of Levashovo and Pulkovo airports, the transfer of the capital of the Leningrad region to Gatchina, and linking to the promising metro stations Strelna, Yanino and Kudrovo. The upgraded scheme of the highway is proposed in the form of an open polygon with transport and interchange nodes in the corners and is based on load-bearing trestle structures of arched-cable design that provide the necessary functionality, reliability and safety. Aim: development of a district high-speed transport system on the borders of St. Petersburg and the Leningrad region, based on the widespread use of electric transport, with passenger traffic comparable to the metro line. Materials and Methods: trestle structures are designed for combinations of operating loads, forces and impacts, including consideration of dynamic aspects and non-linearity, using the "SCAD Office" software package. Results: based on the results of variant design, an arch-cable-stayed version with spans of 180 m and 360 m was adopted as a supporting structure according to the metal consumption criterion, which became the basic one for building a highway of overpass design. From an approximate calculation, it follows that the cost of building a highway on land plots (two-track scheme) compared to the construction of the metro, it is expected to be 5-6 times lower, and on the sea sections 3-4 times lower due to high pylons and deep pile foundations. Conclusion: the estimated volume of passenger traffic per day for the two-track high-speed and two-track high-speed highways will be 208 thousand passengers, and 76 million passengers per year, which is quite comparable to this indicator for the metro line.

Optimization of the Multi-Facility Location Problem Using Widely Available Office Software

Multi-facility location problem is a type of task often solved (not only) in logistics. It consists in finding the optimal location of the required number of centers for a given number of points. One of the possible solutions is to use the principle of the genetic algorithm. The Solver add-in, which uses the evolutionary method, is available in the Excel office software. It was used to solve the benchmark in 4 levels of difficulty (from 5 centers for 25 points to 20 centers for 100 points), and one task from practice. The obtained results were compared with the results obtained by the metaheuristic simulated annealing method. It was found that the results obtained by the evolutionary method are sufficiently accurate. Their accuracy depends on the complexity of the task and the performance of the HW used. The advantage of the proposed solution is easy availability and minimal requirements for user knowledge.