Office Premises Research Articles

THE IMPACT OF SOLAR RADIATION ON THE TEMPERATURE REGIME OF A ROOM IN WINTER

The article is devoted to the computational studies of the air-thermal state of office premises taking into account the effect of solar radiation coming through window openings. The study was conducted for a room with two windows using two heating devices installed under them. The air-temperature regime of premises in winter, characterized by the highest thermal energy consumption for heat supply, is considered. The study is based on the solution of a three-dimensional nonlinear heat transfer problem described by a system of equations of turbulent momentum and energy transfer. The k-e turbulence model is used to close this system. The results of numarical modeling of the physical situation under study are presented. The research data on the features of the air-thermal state of the premises under solar radiation conditions are given. The results of a comparative analysis of the air-temperature conditions of office premises corresponding to the solution of the specified heat exchange problems in the presence and absence of solar radiation are presented and the effects of solar radiation on the structure of the air flow and the thermal state of the premises are established. It is shown that in the presence of solar radiation, the air flow picture and the character of the temperature fields in the premises change significantly. In particular, in these conditions, the increase in the average temperature of the premises for the studied period is 2.5 °С. The possibility of a certain reduction of the load on the heating system in the presence of solar radiation is noted. Bibl. 17, Fig. 5.

ПІДГОТОВКА МАЙБУТНІХ ПРАВООХОРОНЦІВ ДО СПІЛКУВАННЯ З КРИМІНАЛІЗОВАНИМИ ОСОБАМИ

Law enforcement officers’ communication with criminalized persons is an integral part of their professional activities, and the readiness to confidently use certain improvised means for self-defense is a skill that can save lives and preserve health of an officer during official communication actions. The purpose of the article is to characterize the means of self-defense of law enforcement officers when dealing with criminalized persons in their offices. The methodology of the study was based on the analysis of theoretical provisions and the synthesis of practical experience in the field of self-defense when dealing with criminals. Results of the study and conclusions. The author of the article highlights the practical aspects of professional communication with criminalized persons and identifies a number of means by which a law enforcement officer can protect his/her life and health in the event of a collision with such persons in the office premises. The author noted that law enforcement officers should adhere to a business style of communication and be able to protect themselves with improvised means at the time of a threat to life and health from a criminalized person during communications in the office. Key words: means of self-defense, law enforcement officer, communication, professional activity.

Perceived strengths, weaknesses, opportunities and threats related to the utilization of oral health services among pre-conceptive married women before their first pregnancy in Kalutara District

Introduction: Utilization of oral health services during pre-conce ptive period is important for a woman to accomplish a healthy oral environment prior to her pregnancy. Objectives: To describe the perceived strengths, weaknesses, oppor tunities and threats (SWOT) related to the utilization of oral health services among pre-conceptive married women before the ir first pregnancy in Kalutara District Methods: In-depth interviews among pre-conceptive married wome n before their first pregnancy in Kalutara District were conducted using semi-structured interview guide. Purposive sampli ng method was used to select 18 study participants. Data were analysed manually using the thematic analysis method. The i nductive method was used to identify and generate codes and themes from the data itself. The theoretical perspective of qua litative data analysis carried out in this study was the ‘grounded theory approach’. Results: Identified strength was knowledge on benefits of oral health for the pregnancy and quality of life of women. Identified weaknesses were lack of motivation regarding oral health care seeki ng, lack of awareness that the pre-conception period is a crucial period for the oral health promotion among married women, f ear for dental treatment, myths related to the oral health and barriers related to attending dental clinics due to personal-level factors. Identified opportunities were availability of oral health component in the Healthcare for Newly Wedded Programme (HNWP), provision of the oral health education by the medical officer of health (MOH) office staff at the HNWP session s, help and guidance from the MOH office staff at the HNWP sessions to clarify oral health related issues, satisfactory pro vision of the government dental services, dental clinics in the MOH office premises and favourable working hours of the priva te dental clinics. Identified threats were barriers related to attending dental clinics due to service-related factors and lack of information regarding the oral health component of the HNWP from peer groups. Conclusions & Recommendations: Perceived SWOT related to t he oral health services among pre-conceptive married women were identified. These findings will be important to the poli cy makers and service providers to plan an effective oral health service for married women before their first pregnancy.

Rental housing. Analysis of the modern normative base

The article examines the problem of providing housing in Ukraine at the present time. The formation of a civilized rental housing market is considered an effective way to solve the problem of providing citizens with a sufficient amount of housing. An analysis of the modern regulatory framework for determining the functional affiliation of temporary accommodation facilities was carried out. Features and differences in the design of public buildings (hotels with apartments) and residential buildings are defined. Considered issues of regulatory restrictions for creating rental housing: determining the time of insolation for these apartments; determination of the maximum level of building density of rental buildings; determining the possibility of integrating public infrastructure for service into such buildings. There was a need to create a new, socially effective mechanism that would allow middle-income citizens to rent housing and improve their quality of life. Currently, the Law of Ukraine "On Rental Housing" has been developed and adopted in the first reading. According to the draft of this Law, rental housing can be located both in separate buildings and as part of multifunctional complexes. At the same time, such typological units may be included in the composition of such complexes (except for rental housing (residential apartments)), such as hotels, office premises, restaurants, cafes, commercial premises and other public premises. According to world practice, various functions in such complexes are usually distributed by height, with placement on different groups of floors. So, for example, there is a hotel on the lower floors, and residential apartments on the upper floors. At the same time, in this case, such residential apartments belong to the profitable (commercial) class. However, at present, the regulatory framework of Ukraine does not define such a typological variety as "Rental housing". Although the functional affiliation of various types of establishments for temporary accommodation of the population, such as "hotel apartments", "apart-hotels" and others, is currently defined in sufficient detail. So, in addition to legislative standardization, there is currently a task to include such type of buildings as rental residential buildings in the regulatory framework of Ukraine.

Office Access System using RFID and Smart Lock

The RFID Door Access Control System ensures the security and dependability of numerous secure medical and scientific facilities, official premises, and locker rooms that house confidential files, granting access only to restricted individuals. The system combines various access methods and fortified security measures, ensuring convenient user access while remaining in-penetrable to unauthorized individuals. This research paper aimed to design a prototype of 3-layer authentication security system based on a solenoid door lock, 4x4 Keypad, RFID cards, Relay Module, 16x2 LCD, ESP32 micro-controller, RC-522 Reader module, and Blynk application. The project focuses on designing and implementing a robust system that integrates RFID technology with smart locks to grant authorized personnel access to numerous sections within the office premises.

Preliminary Investigation on the Effect of Termites on Wood Decay in Selected Sri Lankan Timber Species


 
 
 Wood in suitable environmental conditions can be attacked by bacteria, fungi, insects, marine borers and some other biological organisms. Wood is the main biodegradation material which is naturally occurred in surrounding environment. As heartwood of wood consist most of the nonliving cells it shows more resistance to decay than sapwood. But insects can cause degrade in both heartwood and sapwood which are not preserved well. Termites belong to Class: Insecta, Order: Isoptera which are one of the most important as ecological contributors by breaking down the organic material of the wood structures directly. This study was done to analyze the effect of termites of selected 27 species with having different densities varying from 400 kg/m3 to 1100 kg/m3 at 12% moisture content. Ten pieces of each and every species of Wewarana, Jack, Badidel, Halmilla, Dawata, Walukeena, Hulanhik, Kaluwara, Hora, Pihimbiya, Damaniya, Godakirilla, Pelan, Hik, Etamba, Lunumidella, Diya Na, Palu, Mora, Kirihembiliya, Nedun, Kon, Kumbuk, Dummala, Milla, Kirikon and Burutha were stored in a separate same type wooden boxes and kept in same environmental conditions where termites can be seen in high densities for one year of time period in Head Office premises of State Timber Corporation at Battaramulla. According to the naked eye observations taken after one year time period Hora, Dummala, Godakirilla species were severely attack by termites while Halmilla, Walukeena, Pihimbiya, Damaniya, Pelan, Etamba, Lunumidella, Diya Na, Kirikon also attack at considerable level by termites. Other species were not attack by termites. Therefore altogether out of 27 species 12 were degraded by termites for the allocated one year time period. The other species of Wewarana, Jack, Bedidel, Dawata, Hulanhik, Kaluwara, Hik, Palu, Mora, Kirihembiliya, Nedun, Kon, Kumbuk, Milla, Burutha species were resistant to the termite attack during one year time period. However further studies are underway to develop the relationships of degradation due to termite attack with climatic conditions, geographical conditions, timber properties such as strength properties as well as the densities, mechanical properties with considerable time period which allocated to degrade.
 Keywords: Ttermites, Decay, Density, Time period
 
 

КОНКРЕТИЗАЦИЯ СЦЕНАРИЕВ РАЗВИТИЯ ПОЖАРА В ПОДЗЕМНЫХ ОБЪЕКТАХ МЕТРОПОЛИТЕНА

The fire hazard of underground metro facilities determined by the presence of significant amounts of combustible materials in escalator and distillation tunnels, office premises, station lobbies, the presence of a large number of cable networks and electrical equipment under voltage in the premises and structures, which leads to fires, huge economic losses and human victims.
 Presents the results of the analysis and generalization of possible fire scenarios at the main underground metro facilities with a massive stay of people, which should be taken into account when carrying out calculations for assessing the fire risk for employees and visitors of the metro, which will provide the most informative assessment of the fire hazard for people in the structures metro, and will allow to fully implement the requirements of the provisions of Article 6 of the Federal Law of July 22, 2008 № 123-FZ «Technical regulations on fire safety requirements» for the subway underground structures.

Air exchange rate as a means of ensure requirements to air purity on the basis of high-efficiency filters

In the context of a constant increase in air pollution, the question arises of creating safe air zones with quality control of the air environment in places where people stay. The constant deterioration of air quality caused by military operations and their consequences, as well as the need to reduce the consumption of available energy resources, requires studying the recommendations on the optimal air exchange rate of existing European and American air quality requirements in residential and office buildings to achieve the required air quality with minimal energy consumption. The objectives of the study were to obtain data on the efficiency of air purification in a given volume at different air exchange rates. A separate task was to check the data declared by the manufacturer on the pressure drop across the filter with an increase in the volume of air passing through it. CleanZone5300 filtration systems with F9 class filter and HEPA H12/13 class filter were considered, which can provide an air exchange rate of 2 to 10 times. In a room volume of 225.9 m3, at a temperature of 18 ˚C, a relative humidity of 57-59 % and an initial number of particles in the room air of 533,440 particles/ft3 (15105 particles/m3), the ability of filtration units to purify the air at different rates was studied. It was concluded that even with a factor of 2, the filtration system can provide air purification up to 40 % when using the F9 filter and up to 60 % when using the HEPA H12/13 filter in a short period of time. Recirculation filter units are considered as the easiest way to increase the air exchange rate in the room, in our climatic conditions. With the possibility of avoiding the processing of air for heating or cooling when using outside atmospheric air. In the installations used in the study, the electrical power consumption of the fans is 300 W per hour. The conclusions of the study need to be tested in office premises with an existing ventilation system to determine the optimal multiplicity of achieving a given air quality when using filters or portable filter units.

PERANCANGAN BISNIS DAN IMPLEMENTASI PAKETEMPAT: APLIKASI PENYEWAAN RUANGAN

An activity such as office meetings, gatherings, and business needs are often conducted outside the office premises. Various locations commonly used include halls, private meeting rooms, cafes, or other paid public spaces. However, booking these places can be time-consuming and costly. To address this issue, there is a need for an online platform that connects space owners and renters. Paketempat serves as an online platform where individuals, communities, organizations, or groups can find suitable locations for gatherings, meetings, or office purposes, with a different atmosphere and budget to match their needs (in the Malang and surrounding areas). The goal is for both renters and space owners to benefit from this platform. Renters can discover new environments for their events, find places that align with their theme and budget, and save time. Space owners can profit financially by utilizing and renting out their available spaces by the hour or day. From this application, several usability responses have been gathered from both owners and users of Paketempat. In general, the survey results, conducted through a Google form distributed to Paketempat users, have been positive, encompassing speed, completeness of information, and user interface.

Assessment of the effectiveness of the introduction of technology “Smart Home” in buildings with built-in office premises

The development of the idea of “Smart Office” technologies within the “Smart Home” received during the COVID-19 pandemic. Comfortable staying at home during the pandemic, upon its completion, prompted the idea of promoting the idea of creating more advanced, motivating and productive workplaces. The article shows the relevance of using “Smart Home” technologies for buildings with built-in office premises. Their positive and negative sides, the most promising options for solutions for use in office premises are considered. The article considers such technologies as “Smart Intercom”, “Smart Lighting”, “Smart video surveillance”, “Smart Climate Control”, their operating principles. The economic efficiency of using thermostats applicable to the designed building is considered. The calculation of the main indicators of economic efficiency was performed: net present value (NPV), internal rate of return (IRR), profitability index (PI) and payback period. The result of the calculation is graphically shown.

Теоретические подходы и методические возможности диагностики психологического благополучия сотрудников в условиях пространственной среды офиса

Current research shows that workplace and workplace environmental factors can have an impact on human health and well-being, as well as successful professional self-determination of the individual, defining the rela-tionship between the spatial environment of psychological activity and professional self-determination, satis-faction with the quality of conditions and the organization of work that contribute to achieving success in life, in general. However, empirical studies based on the relationship between the physical factors of the working envi-ronment, the health and well-being of employees are few. This article presents an overview of modern scien-tific research on the impact of the spatial environment of professional activity on the physical, psychological and social well-being of employees working in office premises, studies and describes some methods of organ-izing research, processing and analyzing data.

Employee Experience: A Metric for Future Workforce Agility

A dynamic business environment is where skill progression, adaptability, and versatility are inevitable in replacing the old idea of a rigid career path. It examines how individuals can get ready for the agile future, where success in the always changing workplace will depend on embracing change and ongoing learning. Organisations of today face the challenge ofengagement levels, retention score being the least and burden of technologically advancing working environment. Employers want that workforce which can truly experience what they want and accomplish the goals and objectives. The HR practices of today throw upfront the demanding requirements of the workforce and how they struggle to fit themselves into the culture of the organisation. With more than three generations that have hit the office premises, the culture stands to be modified and newer and better practices need to be devised to have proactive employees who can take forward the vision and mission of the organisation. Organisations too have lent a helping hand to understand the gap that exists between the industry and the academia to devise better approaches for greater results. The primary role is assumed by the employee, whose experience speaks volumes about the uniqueness of the organisation that they work for. Hence, this study aims to explore the association between workforce agility and employee experience, measures taken to enhance the culture of adaptability and engagement levels amongst the employees, and suggest measures to elevate the much-required employee experience.

Hygienic assessment of mycological contamination of the internal environment of residential and public buildings

The paper presents the results of a comprehensive hygienic assessment of the fungal contamination of the internal environment of the premises of residential and public buildings and developed proposals for the methodology for conducting mycological examination of indoor air and building structures. 
 Materials and methods. The objects of research were urban atmospheric air, residential apartments, and office premises with and without fungal infection of wall structures, medical premises for various purposes. The studies included determination of the number of microscopic fungi in 1 m3 of air (CFU/m3); determination of the content of viable fungal flora in scrapings and in swabs from places suspected of having a fungal infection; measurements of humidity of enclosing structures and microclimatic parameters of the indoor air environment; evaluation of the ventilation system. 
 Results. The concentration of microscopic fungi in indoor air without fungal infection of wall structures was shown to depend on fungal pollution of atmospheric air. The peak of fungal air pollution in unaffected rooms and the ambient air, was detected over the spring-summer season. In residential apartments and office premises of public buildings with fungal infection of wall structures, the content of microscopic fungi in the air, regardless of the season, was tens and hundreds of times higher than the content of fungal flora in the air of “healthy” premises and in the atmospheric air. Fungal air pollution in residential and office premises is mainly associated with fungi of the Penicillium, Aspergillus, Cladosporium and Rizopus genera in wards, treatment and diagnostic rooms – yeast-like fungi of the genus Candida. 
 Limitations. The results of the study do not apply to the production facilities of biological industry enterprises, livestock and poultry complexes.
 Conclusion. The necessity of conducting a mycological examination of premises has been substantiated, and a draft of methodological recommendations for conducting mycological examinations of indoor air and building structures has been developed.

Face-to-Display Workforce: Forfeiting Pay Cuts in Favour of Flexibility

The coronavirus pandemic has highlighted the urgency of addressing flexibility in the workplace. Many employees are still undecided about whether to stay in their office premises or to work from home, as well as about the effect of their choice on income. In other words, would their flexibility in selecting their workplaces affect it? How would they react, if it is accompanied by a pay cut? Is working from home without any cuts the dream of employees? Our paper analyses the opinions of e-employees in three countries: Austria, the Czech Republic and Slovakia. Six hundred face-to-display employees participated in our research. The quantitative study was conducted with the aim of analysing their responses, examining who would like to benefit from flexibility accompanied with his/her reduced salary and what that would mean for the future. The data indicate that Austrian e-employees are much more open to salary cuts than those in the Czech Republic and Slovakia. The results also show that a higher age correlates positively with employees’ readiness to accept pay cuts. Similarly, the smaller the cut, the higher the readiness to accept it. The gender comparison shows that Czech and Slovak male breadwinners agree statistically more frequently ready to accept a reduction of their wages than women of the same nationality do. Received: 24 January 2023 / Accepted: 16 May 2023 / Published: 5 July 2023

Report on Prof. R. Vaidyanadhan’s Visit to the Society’s New Office Premises, Kathriguppe, Banashankari 3rd Stage, Bengaluru

Report on Prof. R. Vaidyanadhan’s Visit to the Society’s New Office Premises, Kathriguppe, Banashankari 3rd Stage, Bengaluru

Ensuring normal air quality in office premises with the existing ventilation system

In the conditions of growing interest in indoor air cleaning and strengthening WHO recommendations regarding the concentration of suspended particles in the air (should not exceed 5 μg/m3), there is a need to create clear rules for placing cleaning equipment on ventilation and air conditioning systems. This applies not only to objects that are just being designed, but also to already operated objects with a functioning ventilation system. After all, it is precisely at such objects that there are limited opportunities to intervene in the work of not only engineering systems, but also the operation of the building itself during repairs. The goals of the study were to obtain data on the efficiency of air purification in a given volume with the available air exchange rate of a functioning supply-exhaust system. A separate task was to check the data declared by the manufacturer regarding the pressure drop on the built-in HERA channel filter. The most effective way to clean indoor air from pollutants is considered to be its removal from places of permanent residence of people. Using a general exchange ventilation system equipped with modern filtering equipment, you can achieve significant results in improving air quality. In this case, the ventilation system in an office building in the city center is considered, which was equipped with an additional channel filter with a MERV16 (or HEPA 11) class filter cassette. This modernization of the ventilation system in half a year of operation made it possible to reduce pollution with particles in the size range of 0.3-10 microns in the air environment of office premises by 70...76 % with an insignificant multiplicity in compliance with the norms of the minimum value of air exchange in terms of the amount of fresh air according to the sanitary norm and allowed to avoid significant capital investments for the repair of engineering networks and losses due to the impossibility of operating the building during the repair. The conclusions of the study need to be checked in office premises with an existing ventilation system when recording a gradual decrease in the concentration of pollutants in the premises during the operation of the system in order to determine the optimal multiplicity to achieve the specified air quality when using filters.

Features of heat exchange in office premises with radiant cooling

Features of heat exchange in office premises with radiant cooling

Применение генеративного дизайна при расчете параметров солнечного воздействия

In this paper, the analysis of the sunlight intensity by computer modeling using generative design technologies is performed. The method of automatic placement of office premises using the machine learning method in the Rhinoceros 3D software package using Rhino Grasshopper, Ladybug and Honeybee tools is considered. An algorithm has been created that can automate the placement of premises taking into account solar heating from solar radiation as a criterion for the environment comfort, and analyze the parameters of thermal exposure from solar radiation for each premise. The data obtained can be used in the arrangement of furniture in the workspace and the choice of methods of solar exposure protection, as well as for thermal calculation.

ТЕХНИЧЕСКАЯ ЗАЩИТА ВИЗУАЛЬНОЙ ИНФОРМАЦИИ В ОФИСНЫХ ПОМЕЩЕНИЯХ МЕТОДОМ ИНФРАКРАСНОЙ ЗАСВЕТКИ

The paper presents the results of qualitative theoretical analysis and experimental researches of the influence of infrared radiation (illumination) on a webcam operation. The video cameras used in hidden surveillance are made on the basis of silicon CCD-matrix. The sensitivity of silicon CCDmatrix to optical radiation exceeds the sensitivity of the human eye by several times, and it is shifted along the spectrum to the infrared region not visible to the eye. Controlling the exposure and aperture of the video camera allows changing the sensitivity of the camera within a wide range, adjusting to changes in external illumination. Infrared radiation invisible to the eye has a significant effect on the formation of the recorded video image, and it cannot be completely cut off without a significant deterioration in the characteristics of video shooting. The formation of the uniform and isotropic illumination in the infrared region in the room can neutralize any covert surveillance based on video cameras. Researches have shown the possibility of destructive effects of the infrared radiation on video shooting without destroying electronics in the camera, which does not affect the comfort of employees in a protected room. The authors propose methods of protecting office premises from hidden video surveillance and a methodology for studying the effects of infrared radiation on a webcam in the course of the physical basics of information protection.

On-site workforce shortening the week in favour of flexibility

The Covid-19 pandemic highlighted the urgency of discussing more flexible working models like a four-day workweek. Many employees with social anxiety still fear staying longer in their office premises but do not want to reduce their jobs and professional activities. For them, reducing the number of days is about working smarter within a more flexible schedule. Is working four days a week but earning a full salary: a dream or reality for many employees? From each participating country (Austria, Czech Republic, and Slovakia), 200 on-site employees participated in this study. The research methodology includes quantitative data using WhatsApp as a research tool. The obtained data shows that a four-day work week is having a moment with a different attitude to a five-day working week. The workers ready to accept it are most frequent in Austria, followed by the Czech Republic and Slovakia. In all countries, older employees preferring a shorter workweek prevail over younger ones, as well as men over women.