scholarly journals Perancangan Mesin Vakum dan Pengemasan Untuk Produksi Olahan Jamur Tiram Dalam Rangka Meningkatkan Nilai Jual dan Masa Pakai

2021 ◽  
Vol 14 (2) ◽  
pp. 86-93
Author(s):  
Sir Anderson ◽  
Harfardi Harfardi ◽  
Feidihal Feidihal ◽  
Fiska Rahmi
Keyword(s):  
Service Life ◽  
Working Time ◽  
Oyster Mushroom ◽  
Bending Stress ◽  
Turn On ◽  
Packaging Machine ◽  
Short Time ◽  
Limit Switch ◽  
Made In

The design of this Vacuum and Packaging Machine is made in order to increase the sale value and service life for processed Oyster Mushroom products. Not only that, this machine can do packaging in a short time and efficiently. This machine consists of Frame, Vacuum Motor, Impulse Sealer, Vacuum Clamp. This Vacuum and Packaging Machine has dimensions of length 700 mm x width 500 mm x height 700 mm. The impulse sealer used is Arashi Ais 400 type by using a VE115N 2 CFM type vacuum motor. From this vacuum motor will later be connected to the vacuum clamp as a tool to clamp the packaging during the process of vacuuming the air in the package. This machine is equipped with a limit switch on the vacuum clamp that works to connect the current to the vacuum motor so that the vacuum motor automatically turns on. The operation of this vacuum and packaging machine is quite simple by inserting the packaging containing the product into the sealer and at the end of the package clamped on the vacuum clamp, the vacuum motor will automatically turn on, the next step is to operate the impulse sealer so that the product is finished packed under vacuum. From the design results, the bending stress of the frame is 3.172 N / mm2, the working time of the vacuum and sealer is 1.54 s per package, and the estimated price of the machine is Rp. 1,879,000

scholarly journals Synthesis of Metal Organic Frameworks by Ball-Milling

Crystals ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 15
Author(s):  
Cheng-An Tao ◽  
Jian-Fang Wang
Keyword(s):  
Ball Milling ◽  
Large Scale ◽  
Raw Materials ◽  
Metal Organic Frameworks ◽  
Research Topic ◽  
Mass Ratio ◽  
Time Consumption ◽  
Metal Organic ◽  
Short Time ◽  
Made In

Metal-organic frameworks (MOFs) have been used in adsorption, separation, catalysis, sensing, photo/electro/magnetics, and biomedical fields because of their unique periodic pore structure and excellent properties and have become a hot research topic in recent years. Ball milling is a method of small pollution, short time-consumption, and large-scale synthesis of MOFs. In recent years, many important advances have been made. In this paper, the influencing factors of MOFs synthesized by grinding were reviewed systematically from four aspects: auxiliary additives, metal sources, organic linkers, and reaction specific conditions (such as frequency, reaction time, and mass ratio of ball and raw materials). The prospect for the future development of the synthesis of MOFs by grinding was proposed.

Adhesives in engineering

1997 ◽  
Vol 211 (5) ◽  
pp. 307-335 ◽  
Author(s):  
A J Kinloch
Keyword(s):  
Molecular Weight ◽  
Fracture Mechanics ◽  
Service Life ◽  
Adhesive Joint ◽  
Adhesive Joints ◽  
Liquid Form ◽  
Engineering Applications ◽  
Advantages And Disadvantages ◽  
Load Carrying ◽  
Made In

When considering methods for joining materials, there are many advantages that engineering adhesives can offer, compared to the more traditional methods of joining such as bolting, brazing, welding, mechanical fasteners, etc. The advantages and disadvantages of using engineering adhesives are discussed and it is shown that it is possible to identify three distinct stages in the formation of an adhesive joint. Firstly, the adhesive initially has to be in a ‘liquid’ form so that it can readily spread over and make intimate molecular contact with the substrates. Secondly, in order for the joint to bear the loads that will be applied to it during its service life, the ‘liquid’ adhesive must now harden. In the case of adhesives used in engineering applications, the adhesive is often initially in the form of a ‘liquid’ monomer which polymerizes to give a high molecular weight polymeric adhesive. Thirdly, it must be appreciated that the load-carrying ability of the joint, and how long it will actually last, are affected by: (a) the design of the joint, (b) the manner in which loads are applied to it and (c) the environment that the joint encounters during its service life. Thus, to understand the science involved and to succeed in further developing the technology, the skills and knowledge from many different disciplines are required. Indeed, the input from surface chemists, polymer chemists and physicists, materials engineers and mechanical engineers are needed. Hence, the science and technology of adhesion and adhesives is a truly multidisciplined subject. These different disciplines have been brought together by developing a fracture mechanics approach to the failure of adhesive joints. The advances that have been made in applying the concepts of fracture mechanics to adhesive joints have enabled a better understanding of the fundamental aspects of adhesion and the more rapid extension of adhesives technology into advanced engineering applications.

Optimizing training opportunities for otolaryngology senior house officers: an audit

2006 ◽  
Vol 120 (7) ◽  
pp. 583-586 ◽  
Author(s):  
J Wasson ◽  
N Jacobsen ◽  
D Bowdler ◽  
C Hopkins
Keyword(s):  
Working Time ◽  
European Working Time Directive ◽  
Medical Careers ◽  
Surgeon Training ◽  
European Working ◽  
Cent Case ◽  
Audit Cycle ◽  
Working Time Directive ◽  
Training Opportunities ◽  
Made In

Implementation of the European Working Time Directive and the Modernising Medical Careers initiative will mean junior surgeons must be trained in fewer hours over a shorter period. For this reason, junior surgeon training opportunities must be optimized. We undertook a departmental audit to identify where opportunities to train senior house officers (SHOs) in theatre were being lost, so that appropriate timetable changes could be made in order to optimize exposure to suitable surgical cases. During the first audit cycle, the SHOs followed their existing timetable and theatre attendance was monitored prospectively over a two-week period. Only 30 per cent of theatre sessions were attended and case participation was only 27 per cent. Simple timetable changes were made to maximize SHO theatre attendance, and a second prospective two-week audit was undertaken. The new rota yielded 46 per cent theatre attendance and 48 per cent case participation.

scholarly journals ACTUALITY OF APPLICATION OF BIOGAS INSTALLATIONS IN RUSSIA AND ABROAD

2017 ◽  
Vol 12 (2) ◽  
pp. 71-74
Author(s):  
Булат Зиганшин ◽  
Bulat Ziganshin ◽  
Ильназ Кашапов ◽  
Ilnaz Kashapov ◽  
Ильнур Гайфуллин ◽  
...  
Keyword(s):  
Activated Sludge ◽  
Power Plants ◽  
Biogas Production ◽  
Operating Experience ◽  
Farm Animals ◽  
National Program ◽  
Urban Wastewater ◽  
The World ◽  
Short Time ◽  
Made In

The first scientific developments in the field of biogas technologies were made in Russia more than 70 years ago. Since the 50th years one of the main directions was the anaerobic processing of activated sludge and sediments of urban wastewater. This method attracted attention in connection with the idea of obtaining biogas mainly from the manure of farm animals. Thanks to this in the middle of 50th years a number of pilot plants for biogas production were built in Zaporozhia, Belorussian, Georgian, Moldavian branches of All-Russian Institute of Agriculture Electrification, and also in Ekaterinburg. However, the operating experience of these installations was insignificant - one - two seasons. The problem of obtaining and using biogas is given great attention abroad. In a short time, in many countries around the world a whole industry for the production of biogas has emerged. The leader in the development of biogas industry is China. Since the middle of 1970, the National Program for the production of biogas from livestock wastes has been operating in this country. Currently, there are 10 million farm bioreactors. In addition, 40 000 biogas stations, 24 000 biogas treatment plants operate in China, which provides operation of 190 power plants.

scholarly journals Ineffable Cultures or Material Devices: What Valuation Studies can Learn from the Disappearance of Ensured Solidarity in a Health Care Market

2015 ◽  
Vol 3 (1) ◽  
pp. 45-73 ◽  
Author(s):  
Teun Zuiderent-Jerak ◽  
Stans Van Egmond
Keyword(s):  
Health Care ◽  
Decisive Role ◽  
Cultural Value ◽  
Health Care Market ◽  
A Value ◽  
Dutch Health ◽  
Short Time ◽  
Regulated Competition ◽  
Made In

Valuation studies addresses how values are made in valuation practices. A next - or rather previous - question becomes: what then makes valuation practices? Two oppositional replies are starting to dominate how that question can be answered: a more materially oriented focus on devices of valuation and a more sociologically inclined focus on ineffable valuation cultures. The debate between proponents of both approaches may easily turn into the kind of leapfrog debates that have dominated many previous discussions on whether culture or materiality would play a decisive role in driving history. This paper explores a less repetitive reply. It does so by analyzing the puzzling case of the demise of solidarity as a core value within the recent Dutch health care system of regulated competition. While “solidarity among the insured” was both a strong cultural value within the Dutch welfare-based health system, and a value that was built into market devices by health economists, within a fairly short time “fairness” became of lesser importance than “competition”. This makes us call for a more historical, relational, and dynamic understanding of the role of economists, market devices, and of culture in valuation studies.

scholarly journals The Effect of Technological Treatments and Loads on the Service Life of Fillet Welds

2020 ◽  
pp. 21-25
Author(s):  
Janusz Lewandowski ◽  
Dariusz Rozumek
Keyword(s):  
Service Life ◽  
Stress Ratio ◽  
Fatigue Cracks ◽  
Constant Stress ◽  
Fillet Welds ◽  
Test Results ◽  
Technological Treatment ◽  
Technological Treatments ◽  
Made In

The paper presents test results concerning the service life of fillet welds made in steel S355. In addition, the article discusses the initiation and growth of fatigue cracks in specimens subjected to bending with torsion. The tests were performed in relation to constant stress ratio R = -1 and 0. The results presented in the article take into account the effect of the technological treatment on the service life of the specimens. The tests revealed longer service life of the specimens not subjected to the technological treatment, both when R = -1 and 0.

scholarly journals Analysis on the Possibility of Eliminating Interference from Paraseismic Vibration Signals Induced by the Detonation of Explosive Materials

Sensors ◽  
2020 ◽  
Vol 20 (21) ◽  
pp. 6401
Author(s):  
Józef Pyra ◽  
Maciej Kłaczyński ◽  
Rafał Burdzik
Keyword(s):  
Acoustic Waves ◽  
Vibration Signal ◽  
Test Results ◽  
Subtraction Method ◽  
Reverberation Chamber ◽  
Explosive Materials ◽  
Short Time ◽  
Spectral Subtraction Method ◽  
The Impact ◽  
Made In

This article presents the results of studies on the impact of acoustic waves on geophones and microphones used to measure airblasts carried out in a reverberation chamber. During the tests, a number of test signals were generated, of which two are presented in this article: frequency-modulated sine (sine sweep) waves in the 30–300 Hz range, and the result of detonating 3 g of pyrotechnic material inside the chamber. Then, based on the short-time Fourier transform, the spectral subtraction method was used to remove unwanted disruption interfering with the recorded signal. Using MATLAB software, a program was written that was calibrated and adapted to the specifics of the measuring equipment based on the collected test results. As a result, it was possible to clean the signals of interference and obtain a vibration signal propagated by the substrate. The results are based on signals registered in the laboratory and made in field conditions during the detonation of explosive materials.

scholarly journals Ibis and the city: bogan kitsch and the avian revisualization of Sydney

2020 ◽  
Vol 19 (3) ◽  
pp. 369-390
Author(s):  
Paul Allatson ◽  
Andrea Connor
Keyword(s):  
Urban Landscape ◽  
Time Frame ◽  
Urban Spaces ◽  
Inland Waterways ◽  
Nesting Sites ◽  
White Ibis ◽  
Australian City ◽  
Short Time ◽  
The City ◽  
Made In

The Australian White Ibis (Ibis) ( Threskiornis molucca) is one of three endemic Ibis species in Australia. In a short time frame beginning in the 1970s, this species has moved from inland waterways to urban centres along the eastern and southeastern seaboards, Darwin and the Western Australian southwest. Today Ibis are at home in cities across the country, where they thrive on the food waste, water resources and nesting sites supplied by humans. In this article, the authors focus on Sydney to argue that the physical and cultural inroads of Ibis, and the birds’ urban homeliness, are resignifying urban surfaces and the multispecies ecologies in which contemporary Australians operate. They explore how the very physical and sensory presence of Ibis disrupts the assumptions of many urban Australians, and visitors from overseas, that cities are human-centric or human-dominant, non-hybrid assemblages. They also introduce to this discussion of disrupted human expectations a cultural parallel, namely, the recent rise of Ibis in popular culture as an icon-in-the-making of the nation and as a totem of the modern Australian city itself. This trend exemplifies an avian-led revisualization of urban spaces, and is notable for its visual appeals to Ibis kitsch, and to working class or ‘bogan’ sensibilities that assert their place alongside cosmopolitan visions of being Australian. Sometimes kitsch Ibis imagery erupts across the urban landscape, as occurs with many Ibis murals. At other times it infiltrates daily life on clothing, on football club, university and business logos, as tattoos on people’s skin, and as words in daily idiom, confirmed by terms such as ‘picnic pirates’, ‘tip turkeys’ and ‘bin chickens’. The article uses a visual vignette methodology to chart Ibis moves into Sydney and the realms of representation alike, and thus to reveal how new zoöpolitical entanglements are being made in the 21st century.

Turn-on and Charge Build-up Dynamics in Polymer Field Effect Transistors

2005 ◽  
Vol 871 ◽  
Author(s):  
Yohai Roichman ◽  
Nir Tessler
Keyword(s):  
Power Law ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Time Range ◽  
Gate Bias ◽  
Current Dependence ◽  
Turn On ◽  
Long Time ◽  
Source Current ◽  
Short Time

AbstractTurn-on dynamics of polymer field effect transistors were examined experimentally over a wide timescale. We found that the source current dependence on time following switch on of the gate bias exhibits a power law at the short time range, and an exponential decay at the intermediate to long time range. We demonstrate that the transistor dynamic behavior is governed by the channel charge build-up, and can be described accurately by a simple capacitor-resistor distributed line model.

Seventh Periodic Monitoring Report on the Status of Implementation Plans in Response to Board-Endorsed IEO Recommendations

Policy Papers ◽  
2015 ◽  
Vol 15 (58) ◽  
Author(s):  
Keyword(s):  
Periodic Monitoring ◽  
The Status ◽  
High Level ◽  
Short Time ◽  
Implementation Plans ◽  
Monitoring Report ◽  
Made In

The Seventh PMR includes: (i) a discussion of progress made over the last year on the actions corresponding to four Management Implementation Plans (MIPs) that were classified as still “in progress” in the previous PMR; and (ii) an assessment of the progress made in achieving the high-level objectives in three areas directly related to those MIPs. In addition, an update on substantive issues related to five older MIPs agreed since 2007 is provided at the end of the report. Three new evaluations have been completed by the IEO since March 2014. In July and August 2015, Management issued the MIPs in response to these evaluations. Given that only a short time has passed since their completion, progress in addressing the actions contemplated in those MIPs will be discussed in the next PMR.

Sign in / Sign up

Export Citation Format

Share Document