scholarly journals COMPARATIVE ANALYSIS OF TOWER BASE TRANSCEIVER STATION (BTS) FOOT 4 BETWEEN BRACING TYPE V WITH BRACING TYPE X

CI-TECH ◽  
2021 ◽  
Vol 2 (01) ◽  
pp. 42-45
Author(s):  
Sumaidi

The development of an area must be followed by the development of adequate facilities and infrastructure to support the activities of that area. Therefore, an effective and efficient transportation service is needed. The bridge is a means of transportation that functions to connect roads that have been cut off due to obstacles either natural or man-made. The existence of the bridge is expected to facilitate and speed up the trip. The Brantas Bridge that connects Sukoanyar and Krembung Villages uses the warren bridge type, in this analysis a modification is made using a parking type bridge. The modification of the bridge shows that the warren type has a displacement joint of 0.80 cm with a total weight of 2861.475 kN while the parker type has a displacement joint of 29.34 cm with a total weight of 3190.945 kN. In this research, the modified type of warren is suitable for use because it is stronger and more economical than the type of parker.

CI-TECH ◽  
2020 ◽  
Vol 1 (01) ◽  
pp. 1-6
Author(s):  
CI-TECH UPNJATIM ◽  
Sumaidi

This paper explains the comparison 4-foot Base Transceiver Station (BTS) towers between type v bracing and type x bracing in terms of strength and economic aspects using SAP 2000 applications. As technology develops, people's desire for good telecommunications technology is enhancement. The writer analyzes the tower with type v bracing and type x bracing using the SAP 2000 application. BTS towers are used with a height of 25 meters, width of 6 meters, length of 6 meters, height of each segment of 2.5 meters. Then analyze the strengths using the SAP 2000 application based on the TIA / EIA 1991 standard with displacement not exceeding H/200. After the SAP 2000 application is finished running, the results of the building's own weight output are used for economic comparisons. The results of type v bracing analysis obtained a displacement of 0.4 millimeters with a building own weight of 123.668 KN. The result of type x bracing analysis obtained a displacement of 0.6 millimeters with a building weight of 143,440 KN. The results of this analysis recommend the BTS tower to use type v bracing instead of using type x bracing.


Author(s):  
E. O. Ajaka ◽  
G. Dombo ◽  
O. Abiodun

This paper presents a comparative analysis of autogenous and media assisted grinding of a manganese ore and copper ore both obtained from Otjihase in Namibia. The objective was to understand the relationship between ore properties and Grindability and thus effectively select comminution circuit and equipment based on this relationship. Laboratory studies were carried out to determine the ease of grinding the ore samples relative to one another. The sample of known weight was crushed and the particles thoroughly homogenized for sieve size analysis and Grindability tests. The Grindability test on each ore was both autogenous and media assisted for dry grinding at -250 microns with constant mill charge of 200 g per run, media charge of 40% by weight and mill operations of 100 to 500 revolutions corresponding to mill speeds of 5 to 25 rpm. The Grindability index of each ore was calculated and compared based on the tests results and used to calculate work indexes for the ores based on the Bond’s model. The autogenous tests produced average Grindability values of 0.55 kg/ton/rev and 0.65 kg/ton/rev for the copper and manganese ores respectively; and media assisted tests gave average values of 0.8 kg/ton/rev and 1.45 kg/ton/rev respectively for the copper and manganese ores. The results show that although media charge grinding produced higher Grindability values, both ores are economically amenable to autogenous grinding which suggests that with proper circuit design, the use of autogenous grinding for these ores (especially the manganese) can save significant cost. The results also show that Grindability increases with mill speed up to an optimum value beyond which grindability decreases with increasing speed and may even drop to zero while mill is running. It is also observed that grindability has close relationship with ore properties especially hardness and compressive strength. It should be noted that the inefficiency factors for the grinding are not considered in these results.


Author(s):  
Jamil Azzeh

Data compression is a size reduction of data to be sent via network or to be stored on auxiliary storage for long time, thus data compression will save storage capacity, speed up file transfer, speedup data transmission by decreasing transferring time, and decrease costs for storage hardware and network bandwidth.In this paper we will invistigate Huffman and LZW methods of data compression-decompression. Different images in sizes and types will treated, compresion , decompression times will be evaluated, compression ratio will obtained, the obtaind results will be anakyzed inorder to do some judgments


2019 ◽  
Vol 82 (2) ◽  
pp. 142-146
Author(s):  
Zhenglin Chi ◽  
Yiheng Chen ◽  
Peng Luo ◽  
Yonghuan Song ◽  
Tinggang Chu ◽  
...  
Keyword(s):  

2018 ◽  
Vol 51 ◽  
pp. 267-275
Author(s):  
O. S. Pilipchuk ◽  
V. I. Sheremeta ◽  
V. G. Kaplunenko

Modern pork production technologies are aimed at obtaining maximum productivity data, which are an indicator of the effectiveness of pig industry in general. The aim of the research was to develop a biotechnological method of increase of prolificacy of sows with 1 and 2 farrowing, using biologically active medicines of the neurotropic-metabolic action – Glyutam 1M and Nanovulin-BA. On the day of weaning, all the experimental sows were injected with vitamins Introvit in a dose of 10 ml/head. The sows in the research groups received Glutam 1M and Nanovulin-BA for three days in the morning in stern balls, which contained 100 grams of feed and 20 ml of medicine. The sows of the II and III experimental groups received Glutam 1M starting from the day of weaning. Nanovulin-BA was fed to the sows of the III and IV research groups at 0-2 day of sexual cycle. The females of the control group were fed by 20 ml of saline during these periods of reproductive cycle. In the II and III research groups the live weight of hypertrophous and normal piglets was bigger compared with the control one by 7.7%, 9.2% and 9.7%, 8.6% respectively. The weight of hypertrophous animals of the I group exceeded data of the control one within the error, while the weight of normal piglets was higher by 11.5%. The increase in live weight of hypertrophous and normal piglets of sows in the II and III research groups contributed to the significant increase of the total weight of newborn piglets by 26.3% and 26.3% (in comparison with the control group). In the I research group, it increased by 27.1%, mainly due to normal piglets’ weight and therefore was not likely. The influence of Glyutam 1M and Nanovulin-BA on the prolificacy of sows was analyzed, taking into account that the experimental groups were formed from sows with two different farrowing – 1 and 2. Live weight of the hypertrophous piglets of the sows from the I group after the 1 farrowing was higher by 8.8%, compared to animals which had 2 farrowing. Live weight of hypertrophous and normal piglets in both subgroups was almost at the same level, while the total weight of piglets from the animals with 2 farrowing was higher than from females with 1 farrowing by 10.7%. Total weight of newborn piglets from the sows in group III with 2 farrowing increased compared to the animals with 1 farrowing by 16.1%. Comparative analysis of the influence of sows’ age on live weight of piglets showed, that the live weight of normal piglets in the I experimental group with 2 farrowing was higher by 11% compared to the control one of the same age (with 2 farrowing). Total live weight of piglets in the I experimental group with 1 and 2 farrowing was higher by 23.0% and 26.8% compared to the control group of animals of the same age. In the II experimental group live weight of normal piglets from sows with 1 and 2 farrowing increased by 11% and 7.4% respectively in comparison with animals of the same age in the control group. Total live weight of newborn piglets in the II experimental group increased by 28.0% and 24.8% respectively compared to the animals of the same age of control group (1 and 2 farrowing). The live weight of hypertrophous piglets from experimental group III (2 farrowing) was higher by 15.1%. The injections of biologically active medicines during insemination of sows in the group III contributed to the increase of live weight of normal piglets (sows with 1 and 2 farrowing) compared with the control one by 11% and 8% respectively. In the III group of animals with 2 farrowing the total weight of newborn piglets increased significantly by 29.6% compared to control animals of the same age (with 2 farrowing). Analyzing live weight of hypertrophous piglets it should be noted, that in the control group of sows with 1 farrowing this category of piglets was absent. While control females with 2 farrowing and animals of the research group, regardless of their age, showed, that the live weight of hypertrophous piglets was almost at the same level. Comparative analysis between groups showed, that the live weight of hypertrophous and normal piglets in the I experimental group was higher in comparison with the control one by 14.1% and 11.5% respectively. Weight of hypertrophous piglets from females of the I experimental group was the same compared to the control one. While the weight of normal piglets increased by 10% compared to the control group. Injections of theneurotropic-metabolic medicines to the sows of the II and III research groups helped to increase the prolificacy by 15.1% and 9.2% and 12.2% and 9.9%. The live weight of normal piglets in the II and III research groups was higher by 8% and 9.2% respectively. Іn this way, the injections of biologically active medicine Glyutam 1M for 3 days after the weaning cause an increase in live weight of newborn piglets by 14.1%. Feeding females with Glyutam 1M and Nanovulin-BA at one time helped to increase live weight of piglets by 13%, and the injections of Nanovulin-BA only – by 11.8%. Injections of neurotropic-metabolic medicines with biologically active action on different schemes of their use cause the tendency to increase the live weight of both sexes embryos in the prenatal period up to 2 kg for sows of the 1 and 2 farrowing.


2020 ◽  
Vol 2020 ◽  
pp. 1-18
Author(s):  
Feras Al-Hawari ◽  
Mohammed Al-Sammarraie ◽  
Taha Al-Khaffaf

This paper addresses various aspects related to the design, development, and validation of a web-based information system that is intended to facilitate the management of a bus transportation service offered by a Jordanian university to its staff and students. Passengers can use this system to track bus trips to find out how far a desired bus is from a specific location. Also, they can know about arrivals and departures of buses managed using this system. Specifically, this work explores UI design, data structures, database design, system architecture, and development methods to realize the required features (e.g., user roles, bus setup, driver assignment, bus routes, bus schedules, and trip monitoring) in the proposed bus location tracking system. It also suggests using the free open-source API, rather than the proprietary Google Maps API, to develop the interactive maps. The system also records trip information and solicits passenger feedback to allow reviewing and analyzing that data to enhance the quality of service, reduce operation cost, and improve passenger satisfaction. The conducted comparative analysis results illustrate that the open-source API is accurate, fast, and responsive similar to the proprietary API. Furthermore, the user survey output confirms that the deployed system is easy to use, helpful, fast, responsive, and accurate.


2020 ◽  
Author(s):  
Jana Zwyrtková ◽  
Alžběta Němečková ◽  
Jana Čížková ◽  
Kateřina Holušová ◽  
Veronika Kapustová ◽  
...  

Abstract Background Cultivated grasses are an important source of food for domestic animals worldwide. Better knowledge of their genomes can speed up development of cultivars with better quality and resistance to biotic and abiotic stresses. The most widely grown grasses are tetraploid ryegrass ( Lolium ) species and diploid and hexaploid fescues ( Festuca ) species. In this work we characterized repetitive DNA sequences and their contribution to genome size in seven fescue and ryegrass species. Results Partial genome sequences were produced by Illumina technology and used for genome-wide comparative analyses using RepeatExplorer pipeline. Retrotransposons were found to be the most abundant repeat types in all seven grass species. Athila element of Ty3/gypsy family showed most striking difference in copy numbers in nuclear genomes between fescues and ryegrasses. The sequence data enabled the assembly of an LTR element Fesreba, which is highly enriched in centromeric and (peri)centromeric regions in all species. A combination of FISH with a probe specific to Fesreba element and immunostaining with CENH3 antibody showed their colocalization and indicated a possible role of Fesreba in centromere function. Conclusions Comparative analysis of repeatome in a set of fescues and ryegrasses provided new insights into their genome organization and divergence, including the assembly of LTR element Fesreba. The element was abundant in centromeric regions of the fescues and ryegrasses and may have a role in function of their centromeres.


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