scholarly journals SPECIFIC FEATURES OF USING THE FOURTH STAGE OF ACOUSTIC EXPERTISE FOR SPECIAL PURPOSE PREMISES

2021 ◽  
pp. 41-61
Author(s):  
Sergei Poroshin ◽  
Victoriya Usik
Keyword(s):  
Sound Field ◽  
Software Complex ◽  
Conference Room ◽  
Content Selection ◽  
Technical Specifications ◽  
Conducting Research ◽  
Sound Reinforcement ◽  
Acoustic Conditions ◽  
Speech Content

The subject of the report is the methodology of carrying out an examination of the application for the purpose of establishing the optimal acoustic minds in the prevalence of attribution. The goal is to improve the quality of all stages of acoustic examination, taking into account the premises for which there are special requirements for the quality of the transmitted content or for which there are features in the formation of the sound field. Such a sequence of stages requires the solution of several tasks: determining the conditions for conducting research, taking into account the specifics of the premises and content; selection of hardware and software complex for research; determination of informative criteria for assessing the acoustics of a room, taking into account all its features; processing and analysis of the results obtained. The application of this approach to the stages of acoustic examination was considered on the example of a conference room, for which there were requirements for high quality speech content, a sound reinforcement system was already used in the hall, and there were features in the formation of a sound field. The authors in the article describe the solutions to all the tasks for the investigated room. The results obtained made it possible to analyze the objective characteristics of the sound field and identify the reasons for the low quality of speech content transmission not only in the acoustic calculation, but when using the existing sound reinforcement systems (electroacoustic calculation). Conclusions. The proposed sequence of the stages of acoustic examination makes it possible to identify "problem" places in the formation of the sound field and / or to determine possible solutions even before the stages of checking existing architectural and construction solutions and the development of technical specifications for the construction of enclosing surfaces and measures to create optimal acoustic conditions.

scholarly journals Improving Building Acoustics

2021 ◽  
Vol 11 (2) ◽  
pp. 137-142
Author(s):  
Simona Stanca
Keyword(s):  
Complex System ◽  
Noise Level ◽  
Functional Unit ◽  
Sound Field ◽  
Sound Level ◽  
Office Building ◽  
Acoustic Quality ◽  
Sound Features ◽  
Acoustic Conditions

Abstract One of the most significant aspects which need to be analysed in the case of a building consists in finding that the sound level perceived by listeners is a proper one (Daniela-Roxana Tămaş-Gavrea et all., 2012). Their inconsistent spreading can develop problems in audition which can be solved only by putting in work a number of measures of acoustic rehabilitation. The evaluation of the acoustic quality of a building is a delicate issue, because of the complex system of the sound field contained in closed spaces and the sound features of the outlining surfaces. This paper presents a research on improving the acoustic conditions of a building which initially had a technical-administrative destination and was then converted into an office building (Stanca S.E., 2021). The measures of acoustic protection were recommended with a view to mitigate the noise level under admissible limits in the functional unit under consideration.

scholarly journals Research on the Manufacturing Quality of Co-Cured Hat-Stiffened Composite Structure

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 2747
Author(s):  
Xiangwen Ju ◽  
Jun Xiao ◽  
Dongli Wang ◽  
Cong Zhao ◽  
Xianfeng Wang
Keyword(s):  
Composite Structures ◽  
Sound Pressure ◽  
Integration Method ◽  
Complex Geometry ◽  
Sound Field ◽  
Thickness Measurement ◽  
Curing Process ◽  
The Finite Element Method ◽  
Manufacturing Quality

The stringer-stiffened structure is widely used due to its excellent mechanical properties. Improving the manufacturing quality of stringer-stiffened structure which have complex geometry is important to ensure the bearing capacity of aviation components. Herein, composite hat-stiffened composite structures were manufactured by different filling forms and bladders with various properties, the deformation of silicone rubber bladder in co-curing process was studied by using the finite element method. The thickness measurement at different positions of the hat-stiffened structure was performed to determine the best filling form and bladder property. Moreover, in view of the detection difficulties in R-zone of stringer, numerical simulation was performed to get the sound pressure and impulse response of at the R-zone of stringer by Rayleigh integration method, and an effective equipment which could stably detect the manufacturing quality of R-zone was designed to verify the correctness of sound field simulation and realize the detection of stringer. With the optimum filling form and bladder properties, hat-stiffened composites can be manufactured integrally with improved surface quality and geometric accuracy, based on co-curing process.

E. Analisis Kualitas Sumber Daya ManusiaTerhadap Ketepatan Waktu Laporan SPJ Pengeluaran (Studi Kasus pada Dinas Lingkungan Hidup Provinsi Jawa Timur)

2021 ◽  
Vol 6 (1) ◽  
pp. 53
Author(s):  
Mochamad Khoirul Machfuda ◽  
Hj. Nanik Kustiningsih MM.
Keyword(s):  
Human Resources ◽  
Primary Data ◽  
Valid Evidence ◽  
Data Source ◽  
Work Units ◽  
Operational Activities ◽  
Conducting Research ◽  
Internal Accounting ◽  
Regional Work

Abstrak Belanja Satuan Kerja Perangkat Daerah (SKPD) tentunya sangat berkaitan dengan setiap lembaga pemerintah. Belanja SKPD merupakan pengeluaran dana yang digunakan untuk membiayai kegiatan operasional kantor, dimana setiap pengeluaran atau belanja harus dilengkapi bukti yang lengkap dan sah yang akan digunakan untuk proses penyusunan SPJ Pengeluaran. Oleh karena itu, peneliti tertarik melakukan penelitian yang bertujuan untuk menganalisis pengaruh kualitas sumber daya manusia, pemanfaatan teknologi informasi, dan pengendalian akuntansi internal terhadap ketepatan waktu pelaporan SPJ Pengeluaran di Dinas Lingkungan Hidup Provinsi Jawa Timur. Penelitian ini menggunakan metode analisis kualitatif dan kuantitatif. Sumber data yang digunakan adalah data primer yang diperoleh langsung dari Dinas Lingkungan Hidup Provinsi Jawa Timur. Hasil penelitian menunjukkan bahwa Dinas Lingkungan Hidup Provinsi Jawa Timur  menunjukkan bahwa kualitas sumber daya manusia, memberikan pengaruh yang positif dan signifikan terhadap ketepatan waktu laporan SPJ Pengeluaran  Dinas   Kata Kunci : kualitas sumber daya manusia, ketepatan waktu, laporan pertanggungjawaban Abstract Expenditures for regional work units (SKPD) are of course closely related to every government agency. SKPD expenditure is an expenditure of funds used to finance office operational activities, where each expenditure or expenditure must be accompanied by complete and valid evidence that will be used for the process of preparing the SPJ for Expenditure. Therefore, researchers are interested in conducting research that aims to analyze the influence of the quality of human resources, the use of information technology, and internal accounting controls on the timeliness of reporting SPJ Expenditures at the Environmental Office of East Java Province. This research uses qualitative and quantitative analysis methods. The data source used is primary data obtained directly from the Environmental Office of East Java Province. The results showed that the Department of Environment of the Province of East Java showed that the quality of human resources had a positive and significant effect on the timeliness of the SPJ report on official expenditures.   Keyword : the quality of human resources,timeliness, accountability

A Systematic Literature Review on the Importance of Anthropometric Data Toward the Malaysian Population Productivity and Quality of Life

2021 ◽  
Vol 39 (10) ◽  
Author(s):  
Nurashikin Saaludin ◽  
Amna Saad ◽  
Cordelia Mason ◽  
Norsaadah Zakaria
Keyword(s):  
Quality Of Life ◽  
Well Being ◽  
Anthropometric Data ◽  
Identity Verification ◽  
Medical Treatments ◽  
Car Seat ◽  
Safety Work ◽  
Conducting Research ◽  
Meta Analyses

Anthropometric data is widely used in various applications such as manufacturing, healthcare, forensics, and medical treatments. In addition, the data can be applied to design ergonomic tools, equipment, clothing, and footwear to ensure that the products, facilities, and services fit the users. This paper aims to analyze the existing literature on the importance of anthropometric data on the Malaysian population's productivity and quality of life and look into any further research that needs improvement. Guided by the PRISMA (Preferred Reporting Items for Systematic reviews and Meta-Analyses), through Scopus and Web of Science databases, 15 related studies were identified. The review managed to extract six applications of anthropometric data and its seven perceived benefits. Data applications were classified into furniture, clothing and footwear, car seat, fitting and fixture, forensic investigation, and safety products. The benefits were grouped into easy to use, fit, well-being, welfare, safety, work efficiency, and identity verification by using thematic analysis. The review also highlighted the methodological issues related to the number of samples, locations coverage for a survey and the financial support in conducting research. Finally, several recommendations were drawn, including the importance of anthropometric database development at the end of this paper for reference by future scholars.

Modelling of Scattering from Balcony Fronts

2002 ◽  
Vol 9 (3) ◽  
pp. 219-231
Author(s):  
T. M. Chan ◽  
W. M. To
Keyword(s):  
Computer Simulation ◽  
Ray Tracing ◽  
Diffuse Reflection ◽  
Sound Field ◽  
Direct Wave ◽  
Practice Experience ◽  
Concert Halls ◽  
Distinguished Group ◽  
Opera Houses

Balconies are normally used in large auditoria such as concert halls or opera houses, to increase seating capacity or to give better view for a distinguished group of the audience. When ray-tracing based computer models are applied to study the acoustical quality of these auditoria, the alteration of the sound field due to balcony fronts is normally unobservable, because of the relative small size of the balcony fronts in the auditorium. Furthermore, most diffuse reflection ray-tracing methods are not based on direct wave acoustics but on an approximation of the scattering effect. In practice, experience shows that balcony fronts give additional warmth to music. This effect is more prominent when singers perform in traditional horseshoe shaped opera houses with multi-levels balconies. This paper describes modelling of scattering from balcony fronts using a theoretical wave approach, in which the incident wave front is not plane but spherical. A computer simulation illustrates the scattering of sound that takes place when the wavefront impinges on the surface of the balcony fronts.

scholarly journals CORPORATE BRANDING COWORKING PLACE IN BANDUNG (CORPORATE BRANDING COWORKING SPACE DI BANDUNG)

EDUTECH ◽  
2017 ◽  
Vol 16 (2) ◽  
pp. 122
Author(s):  
Dewi Damayanti ◽  
Evi Novianti ◽  
Centurion C. Priyatna
Keyword(s):  
Corporate Culture ◽  
Product Differentiation ◽  
Corporate Branding ◽  
Qualitative Data ◽  
Corporate Image ◽  
Target Market ◽  
Business Opportunity ◽  
Conducting Research ◽  
Descriptive Method

The title of this research is “Corporate Branding Coworking Space in Bandung” with the subtitle is “Descriptive Study of Corporate Branding Coworking Space in Bandung to Create Product Differentiation”. The high demand for economical workspace makes business coworking space growing. The growth happen in Bandung and make the level of competition coworking space in Bandung is quite high, especially with the uniformity of the product offered each coworking space. Seeing these growth, researchers interested in conducting research on how corporate branding coworking space in Bandung to create product differentiation.The purpose of this study is to discover how company create the vision, implemented vision to their corporate culture, and the compability between their vision and image of Bandung Digital Valley, Freenovation, and Ruang Reka that stakeholder created. The method used in this research is descriptive method with qualitative data and Hatch & Schultz’s concept of corporate branding. The data collection techniques used in interviews, observation, and documentation study.The result of this study indicate that Bandung Digital Valley, Freenovation, and Ruang Reka focus to introduce the company to their target market. Started from create the vision of the company by founder based on their experiences and business opportunity. Then, the application of corporate vision to corporate culture. Non of Bandung Digital Valley, Freenovation, or Ruang Reka implement the vision into corporate culture. Last, Bandung Digital Valley, Freenovation, and Ruang Reka think it is not a right time to create corporate image because they need to improve the quality of their facility first.   Keywords : corporate branding, product differentiation, Bandung Digital Valley, Freenovation, Ruang RekaJudul penelitian yang diangkat adalah “Corporate Branding Coworking Space di Bandung” dengan sub judul Studi Deskriptif mengenai Corporate Branding Coworking Space di Bandung dalam Melakukan Diferensiasi Produk”.  Tingginya kebutuhan akan ruang kerja yang ekonomis membuat bisnis coworking space semakin berkembang. Perkembangan ini terjadi di Bandung dan membuat tingkat persaingan coworking space di Bandung cukup tinggi, terlebih dengan keseragaman produk yang ditawarkan tiap coworking space. Melihat perkembangan tersebut, peneliti tertarik untuk melakukan penelitian mengenai bagaimana corporate branding coworking space di Bandung dalam melakukan diferensiasi produk. Tujuan penelitian ini adalah untuk mengetahui bagaimana pembentukan visi perusahaan, pengimplementasian visi ke dalam budaya, dan kesesuaian citra dengan visi Bandung Digital Valley, Freenovation, dan Ruang Reka yang dihasilkan oleh stakeholder. Mengacu kepada konsep Corporate Branding dari Hatch dan Schultz. Metode penelitian yaitu metode deskriptif dengan data kualitatif. Teknik pengumpulan data dengan wawancara, observasi, dan studi dokumentasi. Setelah melakukan penelitian hasil yang didapat menunjukkan bahwa Corporate branding Bandung Digital Valley, Freenovation, dan Ruang Reka diakui fokus pada pengenalan perusahaan ke target pasarnya. Dimulai dengan pembentukan visi oleh pendiri melihat dari pengalaman dan peluang yang dimiliki. Lalu, penerapan visi pada setiap aspek perusahaan, salah satunya budaya perusahaan tidak dilakukan oleh seluruh coworking space. Terakhir, pembentukan citra kepada stakeholder dirasa belum saatnya karena masih perlu meningkatkan kualitas internal namun sudah ada usaha kesana yang tidak disadari oleh  Bandung Digital Valley, Freenovation, dan Ruang Reka.Kata Kunci : pembentukan merek perusahaan, diferensiasi produk, Bandung Digital Valley, Freenovation, Ruang Reka.

scholarly journals Environmental Acoustic Comfort in the Built Environment

2021 ◽  
Vol 9 (71) ◽  
Author(s):  
Margret Sibylle Engel ◽  
Júlio Otávio Herrmann ◽  
Paulo Henrique Trombetta Zannin
Keyword(s):  
Teaching And Learning ◽  
Physical Structure ◽  
Sharp Drop ◽  
Speech Transmission ◽  
Acoustic Quality ◽  
Teachers And Students ◽  
Acoustic Comfort ◽  
The 1960S ◽  
Acoustic Conditions

  The acoustic quality of classrooms has a strong influence on the teaching and learning process. This interference assessed using the impulsive technique to measure the rate of speech transmission (STI), reverberation time (RT) and sound definition (D50). These are the most relevant acoustic descriptors in the assessment of classrooms, where verbal exposure is the means of communication between teachers and students. The evaluation took place in two buildings of the Federal University of Paraná (UFPR), built in the 1960s and another in 2016. The measured values ​​of STI, provided in the classrooms' actual acoustic conditions, were used as an adjustment parameter for simulations made with the software ODEON. After carrying out the measurements and simulations, the dimensioning of improvements was possible. The acoustic simulations presented suggestions to qualify the quality of the classrooms' acoustic comfort, ensuring that teaching and learning to do not suffer losses due to the physical structure of the classrooms. The measured values ​​of STI, RT and D50 show that, in the old building, except for a single classroom that preserves the original ceiling that had a high sound absorption coefficient, it has reasonable values, below the ideal for classrooms, according to the IEC 60268-16 (2011) standard. The investigation showed that the rooms with a roof replaced by a PVC covering had a sharp drop in acoustic quality. The newest building has classrooms with proper acoustic comfort conditions.

scholarly journals KARAKTERISTIK CAMPURAN AC-WC MENGGUNAKAN MATERIAL RECLAIMED ASPHALT PAVEMENT DENGAN TAMBAHAN ASPAL PEN. 60/70 YANG DISUBSTITUSI STYROFOAM

2019 ◽  
Vol 2 (2) ◽  
pp. 149-157
Author(s):  
Hendra Arianto ◽  
Sofyan M. Saleh ◽  
Renni Anggraini
Keyword(s):  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Reclaimed Asphalt Pavement ◽  
Additional Material ◽  
Reclaimed Asphalt ◽  
The Road ◽  
Concrete Type ◽  
Technical Specifications ◽  
Parameter Values

Reuse of reclaimed asphalt pavement material (RAP) is an alternative which applicated for potential enough on the roughness of the road. RAP material can be reused by adding the asphalt and the new aggregate according of the mixture composition so that it is expected will be obtained the quality as planned. One of the efforts made in improving the quality of asphalt mixture RAP material is using a modified asphalt with additional material, such as styrofoam. The use of styrofoam into the asphalt is expected to improve the technical properties of a mixture. The purpose of this research is to know the comparative characteristics of hot mix asphalt (asphalt concrete) type AC-WC that uses RAP material with additional asphalt pen. 60/70 and asphalt pen. 60/70 substitution in the styrofoam by 8%, 10% and 12% against the weight of asphalt based on levels of asphalt left on the material. The initial stages of this study is to conduct an examination of the physical properties of RAP material, then manufacturing a specimen with variations of the addition of asphalt and aggregate new levels based on the job mix diesign (JMD) Bina Marga Aceh (2013). Based on research results, parameter values marshall on all types of asphalt mixture with new aggregate as well as RAP materials and the use of 100% asphalt pen. 60/70 additional or different types of asphalt on OAC has fulfilled the technical specifications defined by the Bina Marga (2014). Best stability values obtained on asphalt mixture using RAP material with additional asphalt pen. 60/70 with 12% styrofoam substitution on OAC JMD Bina Marga Aceh, that amounted to 3,308.72 kg, the lowest value stability retrieved on asphalt mixture using a new aggregate based on the results of Department of Bina Marga Aceh on OAC i.e. of 983.94 kg.

scholarly journals Media Literasi: Upaya Bijak Menyikapi Terpaan Tayangan Televisi

Humaniora ◽  
2013 ◽  
Vol 4 (1) ◽  
pp. 619
Author(s):  
Wira Respati
Keyword(s):  
Media Literacy ◽  
Poor Quality ◽  
Cultural Development ◽  
The Other ◽  
Content Selection ◽  
The Media ◽  
Television Media ◽  
Passive Object ◽  
Business Orientation

The television media have transformed into industry. Tight competition among TV stations demands the media people to provide programs based on the market taste. Therefore, mostly TV stations design and produce their programs based on share and rating numbers, instead of quality. On the other side, TV stations have important roles in constructing social and cultural development. Currently, TV programs are merely produced based on the business orientation so that the quality of the TV programs is often ignored. Audience must be wise and smart to protect themselves from poor-quality TV programs exposure. This can be achieved by improving their Media Literacy. In the end, Audience is no longer treated as passive object, but actively takes control on the content selection. 

scholarly journals BAHAN TAMBAH SERAT ECENG GONDOK PADA LASTON TIPE XI TERHADAP INDEKS MARSHALL TEST MENGGUNAKAN KERIKIL MANTUP

UKaRsT ◽  
2018 ◽  
Vol 2 (2) ◽  
pp. 8
Author(s):  
Sugeng Dwi Hartantyo ◽  
Rasiyo Hepiyanto
Keyword(s):  
Asphalt Concrete ◽  
Water Hyacinth ◽  
Heavy Traffic ◽  
Asphalt Mixture ◽  
Cellulose Fiber ◽  
Fine Aggregate ◽  
Traffic Loads ◽  
Marshall Test ◽  
Technical Specifications

Laston is a mixture of coarse aggregate, fine aggregate, and filler with a binder under the temperature of 145-155oC with the composition being studied and regulated by technical specifications. Laston is also known as AC (Asphalt Concrete).Laston itself is commonly used in Indonesia with continuous gradations used for heavy traffic loads. To get the addictive material is not easy and the material is expensive. Therefore, it is necessary to find alternatives to the cellulose fiber. Water hyacinth is a water weed that once grow and develop, it has high cellulose fiber content, which is about 60%.For that, done a research to add a hot asphalt mixture material that aims to improve the quality of mixed result. The selected material is natural water hyacinth. The method used is trial and error with reference of SNI 03-1737-1989. Variations used are 3%, 5%, and 7% of the asphalt weight, asphalt level used Is 5.61%.The result of this study is Marshall evaluation where the greatest score obtained for stability is 1325 kg,  Flow is 3.73 mm, Quotient Marshall is 401.02 kg/mm, VMA is 66.30%, VFWA is 19.25%, and VIM score is 54.35 %. With this result, the asphalt mixture can not be used because the results of VMA, VFWA, and VIM have not been suitable on specification of SNI 03-1737-1989.  Keywords: Laston, Asphalt Concrete, Water Hyacinth, SNI 03-1737-1989.

Sign in / Sign up

Export Citation Format

Share Document