Research on Production of Bluecoke with Low Temperature Carbonization Process

2012 ◽  
Vol 724 ◽  
pp. 221-224
Author(s):  
Lei Wu ◽  
Jun Zhou ◽  
Xin Zhe Lan ◽  
Xi Cheng Zhao ◽  
Yong Hui Song ◽  
...  
Keyword(s):  
Low Temperature ◽  
New Technologies ◽  
Coke Oven ◽  
Raw Material ◽  
Carbonization Process ◽  
Advantages And Disadvantages ◽  
New Type ◽  
The Rich

Bluecoke is a new type carbon product that prepared by low temperature carbonization process, which take lignite, long flame coal, not sticky and weak glue coal as raw material. At the same time tar and coke oven gas as by-products can be obtained. Two new technologies of Bluecoke production were introduced based on summary of way of producing Bluecoke by low metamorphic coal, namely the rich oxygen carbonization and the microwave carbonization. Both ways have their advantages and disadvantages. By contrast, the quality of coke and the content of valid gas are better using microwave carbonization, which to follow-up industry chains development significantly.

scholarly journals 3D Digital Impression Systems Compared with Traditional Techniques in Dentistry: A Recent Data Systematic Review

Materials ◽  
2020 ◽  
Vol 13 (8) ◽  
pp. 1982 ◽  
Author(s):  
Marco Cicciù ◽  
Luca Fiorillo ◽  
Cesare D’Amico ◽  
Dario Gambino ◽  
Emanuele Mario Amantia ◽  
...  
Keyword(s):  
New Technologies ◽  
Digital Impression ◽  
New Device ◽  
Advantages And Disadvantages ◽  
Impression Technique ◽  
Impression Materials ◽  
Key Factor ◽  
Dental Impression ◽  
Digital Or

The advent of new technologies in the field of medicine and dentistry is giving improvements that lead the clinicians to have materials and procedures able to improve patients’ quality of life. In dentistry, the last digital techniques offer a fully digital computerized workflow that does not include the standard multiple traditional phases. The purpose of this study is to evaluate all clinical trials and clinical randomized trials related to the digital or dental impression technique in prosthetic dentistry trying to give the readers global information about advantages and disadvantages of each procedure. Data collection was conducted in the main scientific search engines, including articles from the last 10 years, in order to obtain results that do not concern obsolete impression techniques. Elsevier, Pubmed and Embase have been screened as sources for performing the research. The results data demonstrated how the working time appears to be improved with digital workflow, but without a significant result (P = 0.72596). The papers have been selected following the Population Intervention Comparison Outcome (PICO) question, which is related to the progress on dental impression materials and technique. The comparison between dentists or practitioners with respect to classic impression procedures, and students open to new device and digital techniques seem to be the key factor on the final impression technique choice. Surely, digital techniques will end up supplanting the analogical ones altogether, improving the quality of oral rehabilitations, the economics of dental practice and also the perception by our patients.

How to Administer the Initial Preference Task

2012 ◽  
Vol 26 (1) ◽  
pp. 63-78 ◽  
Author(s):  
Stefan Stieger ◽  
Martin Voracek ◽  
Anton K. Formann
Keyword(s):  
Self Esteem ◽  
Advantages And Disadvantages ◽  
Methodological Research ◽  
Initial Preference ◽  
Different Types ◽  
Item Wording ◽  
Preference Task ◽  
New Type ◽  
Meta Analyses

Individuals like their name letters more than non–name letters. This effect has been termed the Name Letter Effect (NLE) and is widely exploited to measure implicit (i.e. automatic, unconscious) self–esteem, predominantly by means of the Initial Preference Task (IPT). Methodological research on how to best administer the IPT is, however, scarce. In order to bridge this gap, the present paper assessed the advantages and disadvantages of different types of IPT administrations with two meta–analyses ( k = 49; N = 11,514) and a follow–up experiment ( N = 449). As a result, a new type of administration is recommended which (1) treats the effects of the first and the last name initials separately, (2) uses a duplicate administration for reliability reasons, (3) uses the likability as well as the attractiveness item wording and (4) exploits not only letters but also numbers (i.e. birthday number effect) to measure implicit self–esteem. Copyright © 2011 John Wiley & Sons, Ltd.

scholarly journals Experience of Using an App in HIV Patients Older Than 60 Years: Pilot Program (Preprint)

2018 ◽  
Author(s):  
Julián Olalla ◽  
Jose María García de Lomas ◽  
Efrén Márquez ◽  
Francisco Jesús González ◽  
Alfonso Del Arco ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Physical Activity ◽  
Hiv Infection ◽  
New Technologies ◽  
Small Sample Size ◽  
Mobile App ◽  
Small Sample ◽  
Control Group

BACKGROUND New technologies can promote knowledge of HIV infection among patients suffering from this disease. Older patients with HIV infection represent an increasingly large group that could benefit from the use of specific apps. OBJECTIVE The aim of the study was to observe the acceptability and use of a mobile app on HIV infection in patients at least 60 years old and offer them the possibility of anonymously establishing contact with their peers. METHODS A series of clinical and psychosocial parameters were studied in 30 HIV-infected patients of over 60 years. The patients must be at least 60 years old, with a follow-up in the outpatient clinic for at least 1 year and without pathologies that limit his or her life expectancy to less than a year. They must know how to read and write. To be part of the group assigned to the app, they had to have their own smartphone and confirm that they were connected to the internet from that device. Overall, 15 of them were randomized to use an app and 15 were in the control group. All tests were repeated after 6 months. RESULTS The median age of patients was 66.5 years. Among them, 29 patients had an undetectable viral load at baseline. The median number of comorbid diseases was 2. Overall, 11 of them lived with their partners and 19 lived alone. They spent an average of 5 hours a day sitting down, and 56% (17/30) of them referred high physical activity. They scored 4 out of 5 for general quality of life perception. Moreover, 80% (24/30) presented high adherence to their treatment, and the average number of concomitant medications was 5. In the 6-min walking test, they covered a distance of 400 meters, and 3 of them desaturated during the test. The 15 patients made frequent use of the app, with 2407 sessions and an average of 7 min and 56 seconds time of use with a total of 13,143 screen views. During the 6 months of the trial, 3 non-AIDS events took place. There were no significant modifications to body mass index, blood pressure measurements, lipid profile, or immuno-virology information data. There were no differences in the questionnaire scores for perception of quality of life, confessed physical activity, or antiretroviral treatment (ART) and non-ART treatment adherence. CONCLUSIONS Significant differences between studied parameters were not objectified in these patients, possibly because this trial has significant limitations, such as a small sample size and only a brief follow-up period. However, patients did use the app frequently, making this a possible intervention to be proposed in future subsequent studies.

scholarly journals Response Bias in a Mail Survey: An Example from a Land Use Study

1980 ◽  
Vol 9 (2) ◽  
pp. 91-96
Author(s):  
Gregory K. White
Keyword(s):  
Land Use ◽  
Response Bias ◽  
Unit Cost ◽  
Mail Survey ◽  
Response Rates ◽  
Advantages And Disadvantages ◽  
Mail Surveys ◽  
The University

Researchers are well aware that each technique for administering surveys has its own advantages and disadvantages. Direct interviews, either by telephone or in person, have a relatively high cost per contact but usually result in a higher percentage of questionnaire completions and greater control of the response quality. Mail surveys can be conducted at a lower per unit cost but are often characterized by lower response rates and an overall poorer quality of completed questionnaires. Even with follow-up mailings, recent studies at the University of Maine suggest that response rates of 35 to 45 percent can be expected on general land use surveys or recreation studies.

SCHOOL MEDICAL SERVICE IN PERSPECTIVE

PEDIATRICS ◽  
1965 ◽  
Vol 35 (6) ◽  
pp. 1011-1020
Author(s):  
Harold H. Mitchell
Keyword(s):  
School Children ◽  
Medical Service ◽  
Communicable Disease ◽  
Great Difficulty ◽  
Quality Of Services ◽  
Nursing Service ◽  
New Type ◽  
Disease Epidemics

THE PROBLEM of quantity and quality of school medical service has concerned some leaders in public health and education in this country for more than 50 years. To achieve a balance between quantity and quality within budget limits is a problem of great difficulty. The growth of population and increasing demands for service may at any time upset the best laid budget plans. In what follows, I shall deal with the progress of school medical service and consider those policies which have had a bearing upon the quality of services. Emphasis on Quantity About 1905, when physicians in schools began to give attention to non-contagious conditions of school children, many physical defects were noted. This was the beginning of a new type of official action in behalf of the health of school children. By 1923 many states had laws requiring annual school medical inspection. However, as there had been no specific standards of quantity or quality, those responsible for the service were troubled by the dilemma of deciding how much of each they should plan for. How much medical service was needed? Nearly every school medical and nursing service was reporting enormous numbers of defects found and this kept the focus upon a concern for more examinations and coverage to find them all. During the 1920's communicable disease epidemics encroached so heavily upon the time of doctors and nurses in the schools as to stop all examinations and follow-up work. In between epidemic periods the demand for inspections of suspected cases of communicable disease caused interference with the search for defects.

scholarly journals Analysis of the Difference Between the Production of Computer Music and the Production of Traditional Music

2019 ◽  
Vol 3 (3) ◽  
pp. 115
Author(s):  
Junwen Su
Keyword(s):  
Production Technology ◽  
Computer Music ◽  
New Technologies ◽  
Traditional Music ◽  
Music Production ◽  
Advantages And Disadvantages ◽  
The Difference

<p>With the development of economy, all kinds of new technologies keep emerging, so does the field of music. The new computer music production technology has greatly improved the efficiency of music production and made up for the defects of traditional music production in which it is still difficult to guarantee the quality of music even if adequate preparation is made before recording. This paper discusses the advantages and disadvantages of computer music production compared with traditional music production.</p>

scholarly journals PEMBUATAN BRIKET DARI KULIT KAKAO MENGGUNAKAN PEREKAT KULIT UBI KAYU

2017 ◽  
Vol 6 (3) ◽  
pp. 21-27
Author(s):  
Rosta Natalia Sinaga ◽  
Rosdanelli Hasibuan
Keyword(s):  
Particle Size ◽  
Temperature Variation ◽  
Compaction Pressure ◽  
Strength Test ◽  
Raw Material ◽  
Effect Of Temperature ◽  
Fixed Carbon ◽  
Carbonization Process

This study aims to determine the effect of temperature variation carbonization, carbonization time and adhesive variation to charcoal characteristics of cocoa skin using cassava skin adhesive. Briquette is usually made using binder. Binder can embed charcoal each other to form strong and compact briquettes. Some other variables beside binder that influence the quality of briquettes include raw material, compacting presseure and carbonization process. This research used cocoa leather as raw material with cassava skin leaves as binder. All variables affect the content of fixed carbon of the briquettes that influence the caloricvalue of the briquettes. The caloricvalue is the most important factor for determining the quality of the briquettes. In this research, the highest caloricvalue of the briquettes was 4.375 cal/g. It was achieved when cocoa leather were carbonized by method 1 with compaction pressure of 85 kg/cm2 and binderconcentration of 15% where as raw material with  particle size of 100 mesh. The caloricvalue of the  briquettes was still very low and did not meet the qualification of Indonesian standard for briquettes. Based on the strength test, cassava skin leaves couldn’t be used as briquette’s binder. The produced briquettes that used cassava skin leaves as binder had soft structure and easily destroyed.

scholarly journals Production, composition and characteristics of organic hard cheese

2016 ◽  
Vol 32 (4) ◽  
pp. 393-402 ◽  
Author(s):  
Anka Popovic-Vranjes ◽  
Snezana Paskas ◽  
Anka Kasalica ◽  
Marija Jevtic ◽  
Milka Popovic ◽  
...  
Keyword(s):  
New Technologies ◽  
Value Added ◽  
Organic Production ◽  
Raw Material ◽  
Added Value ◽  
Dairy Farmers ◽  
Standards And Regulations ◽  
Hard Cheese ◽  
New Jobs

Organic cheeses are value added products that provide small dairy farmers with a viable source of income and has the potential to revitalize farms, provide new jobs, and develop new cheese varieties with unique flavours for consumers to experience. Production of hard organic cheese must comply with organic standards and regulations of organic production. Whole organic milk that does not contain residues of pesticides, hormones and antibiotics represents a quality raw material for hard organic cheese with added value. Together with the existing, producers develop and create new technologies and new branded products which are more original and recognizable. The goal of any technology is obtaining technologically reproducible protocol and constant uniform quality of the cheese with desired properties. In this paper some variables which influence quality of organic hard cheese were investigated. Tested samples of hard organic cheese from different production time showed consistent quality and obtained parameters followed the standards of full-fat hard cheeses.

Material for Skis

2019 ◽  
pp. 24-25
Author(s):  
K. B. E. E. Eimeleus
Keyword(s):  
Raw Material ◽  
Deciduous Trees ◽  
Advantages And Disadvantages ◽  
Different Types

This chapter turns to ski manufacturing. It tries to ascertain when skis are well made from appropriate material and considers the advantages and disadvantages of different types of material used for skis. Concerning the quality of raw material, the chapter asserts that the most useful timber comes from pine or hardwoods. It has to be a hard, lightweight, supple, and durable type of wood. In Scandinavia, several ski makers use primarily deciduous trees: aspen, ash, and even goat willow. Birch is used extensively in Finland because the countryside has almost no other species of trees. Manufacturers have tried to build many kinds of metal skis, but they have not had much success because metal's friction greatly increases as temperatures drop.

scholarly journals A Prospective Intervention Trial on Tailored Radiofrequency Ablation of Uterine Myomas

Medicina ◽  
2020 ◽  
Vol 56 (3) ◽  
pp. 122
Author(s):  
Alessandro Fasciani ◽  
Giovanni Turtulici ◽  
Giacomo Siri ◽  
Simone Ferrero ◽  
Rodolfo Sirito
Keyword(s):  
Quality Of Life ◽  
New Technologies ◽  
Transvaginal Ultrasound ◽  
Safe Procedure ◽  
Ultrasound Guided ◽  
Post Intervention ◽  
Vaginal Ultrasound ◽  
Uterine Myomas

Background and Objective: Investigating the use of radiofrequency myolysis (RFM) for the treatment of fibroids through less invasive access by combining transvaginal ultrasound, hysteroscopy and laparoscopy. Materials and Methods: Fifty-four premenopausal women with 106 symptomatic uterine myomas. Patients underwent RFM in three ways: Vaginal Ultrasound-guided RFM (VU-RFM), Laparoscopic RFM (L-RFM) and Hysteroscopic-RFM (H-RFM). The mean patient age was 43 years; 52 symptomatic uterine myomas were subserosal, 44 intramural and 10 submucosal. The outcomes evaluated at 1 and 12 months after RFM were myoma size (volume-diameter), “Uterine Fibroid Symptom and Quality of Life (UFS-QOL)” questionnaire and a 10-point Visual Analogue Scale (VAS). The therapy was completed with a single ablation in all patients, no complication was registered. The average number of fibroids treated per intervention was two with the use of different accesses: 64/106 VU-RFMs (60.4%), 32/106 L-RFMs (30.2%) and 10/106 H-RFMs (9.4%). Results: Volume and diameter of fibroids were significantly reduced by, respectively, 51.3% and 20.1% in the first 30 days post-intervention (p < 0.001) up to a maximum of 73.5% and 37.1% after the second follow-up visit at 12 months (p < 0.001). A similar trend was shown in terms of disability with a progressive and significant reduction of symptoms (menorrhagia, dysmenorrhea, dyspareunia and pollakiuria) demonstrated by percentage variation of UFS-QOL Symptom Severity and VAS scores to −74.3% and −45.3% as well as −84.9% and −74.3%, respectively, at 1 and 12 months after RFM (p < 0.001). An overall improvement in the quality of life was also demonstrated by a significant increase in the UFS-QOL total score of +38.2% in the first 30 days post-intervention up to +44.9% after the second follow-up visit at 12 months (p < 0.001). The overall average surgery time of the RFM for each patient was 48 minutes, and the time to treat each fibroid by Vaginal Ultrasound-guided RFM (23 min) was found to be significantly less than those of laparoscopy or hysteroscopy (respectively 35 and 34 min) (p < 0.05). An electromagnetic virtual needle tracking system (VNTS) was successfully tested during the RFM procedures, and real-time contrast-enhanced ultrasound (CEUS) has proven to be effective in determining the duration of myolysis through the identification of eventual residual areas of enhancement within the fibroids. Conclusion: Radiofrequency can be considered a minimally invasive and safe procedure for the treatment of uterine myomas through the customization and possible combination of transvaginal, laparoscopic or hysteroscopic accesses. The standardization of the ablation technique with pre-intervention biopsy and new technologies such as VNTS and CEUS spares healthy uterine tissue and may change the future management of symptomatic uterine fibroids.

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