Academic literature on the topic 'Lands Directorate'

Effective forest fire fighting involves alerting firefighting teams immediately in the case of a fire so that teams can promptly arrive the fire scene. The most effective way for an early detection of forest fires is monitoring of forest lands from fire lookout towers. Especially in fire sensitive forest lands, towers should be systematically located in such a way that fire lookout personnel can monitor the largest amount of forest land as possible. In this study, the visibility capabilities of lookout towers located in Köyceğiz Forest Enterprise Directorate (FED)in the city of Muğla in Turkey were evaluated by using Geographical Information System (GIS) based visibility and suitability analysis. The results of visibility analysis indicated that 77.12% of forest land were visible from the current towers. To extend the proportion of visible forest lands, locations of additional lookout towers were evaluated using spatial visibility and suitability analysis in which the tower locations were examined by considering specific criteria (i.e. distance to roads, elevation, ground slope, topographic features). Suitability analysis results identified five new towers in addition to current towers in the study area. The results indicated that visible forest lands increased to 81.47% by locating new towers, and increase of almost 4.35%. In addition, over half of the forests became visible by at least two towers when including five towers suggested by suitability analysis. The GIS-based method developed in this study can assist fire managers to determine the optimal locations for fire lookout towers for effective fire management activities.

The history of the development of the prisoners work on the Belarusian lands after the prison reform of 1879 is the object of examination. In the historiography of pre-revolutionary, Soviet and modern periods this problem has never been studied by neither Russian nor Belarusian scientists. The examination of the prisoners work development in the local prisons as well as the determination of its common patterns for the Belarusian lands and the Russian Empire in general, and of the regional characteristics of this process are the purpose of the research. The main ways of action of the General Directorate of the Corps of Prison on the labour productivity of the prisoners on Belarusian lands (organisation of its local structural subdivision (province prison inspections) which managed the prisoners work, the organisation of the melioration and logging, the development of work in the prisons workshops) are being examined by the author on the base of the study of the archive data. The core activity of the fulfilment in the local prisons at the end of the 19th – early 20th centuries and the negative phenomena which interrupt it (in general the overcrowding of the places of determination that influenced the closure of the workshops) are being determined. The results of the prisoners work development by the turn of the second decade of the 20th century which are the growing numbers of the working prisoners and the increase of their salary activity from the beginning of the 20th century are being appreciated. The undertaken research will make it possible to determine the historical continuity of the series of measures to develop the prisoners work in the places of detention at the end of the 19th – early 20th centuries with the activity of the manufacturing establishments of the penitentiary system of the Republic of Belarus at the present time.

Urban planning is a science that is reflected in the methods of land uses especially housing use, which is one of the most important sector in the city. It is considered the most important human requirement after food and wearer. The master plan is considered as one of the most important urban frame. It contains all the structural plans to control the urban expansion of all service sectors for the land uses in the city. It is planned for present and future status for the cites. The city master plan guarantees the equal distribution of urban land expansion from all sides. It secures the provision and implementation of housing projects to all residents in the city, Because of the economic growth that the city of Sulaimani witnessed after 2003. The city was suffering from a lack of attention to the issue of preparing a master plan. It did not have a master plan except for old studies that were carried out by the federal government. The master plan studies began from 2006 to 2009, then in 2009 it was recognized. Therefore, this subject is very substantial and the problem is that the implementation and site projection of housing was done in unappropriate manner with the stages of the master plan and the absence of evidence to invest in a housing sector. The purpose of this study is to identify a clear vision of housing investment projects, and shed the light on the necessary policies to be considered. Geography information system has been used to indicate the locations of housing projects in the city of Sulaimani. There is conformity with allocated lands for housing in the master plan. Then questions were addressed to specialists and agencies who had worked in housing projects such as the Directorate of Housing, Directorate of Investment, and the municipality. The questionnaire was proven after seeking the assistance of 9 experts to know the extent of the credibility of the questions that were laid down. The research found there are non-planning factors that affect the implementation of housing projects. Absence of laws and administrative errors in the implementation of housing projects playing the main role of having no clear housing implementation vision.

In this research, the effects of the soil properties of the producer lands that have just started the production of roasted pumpkin seeds on the properties of the harvested seeds were investigated in the provinces and districts of Kütahya. For this purpose, soil samples (44 pieces) were taken from the fields of farmers who obtained pumpkin seeds from Kütahya Food and Forest Provincial Directorate. Soil analyzes were performed and according to the results, 100 kg of nitrogen (N), 300 kg of phosphorus (P2O5), 110 kg of potassium (K2O) per hectare, and the amount of fertilizers in which insufficient amount of microelements were determined. With this study, the yield, morphological characteristics, nutrient contents and oil contents of the harvested pumpkin seeds were determined. The soils of research area were mostly clayey loamy, calcareous, medium in organic matter content, sufficient in N content, insufficient in P content. The microelement contents of the soils were sufficient for Fe, Cu, and B but Mn and Zn were very few. The protein content of the pumpkin seeds varied from 22.6 to 45.8% and the oil content from 41.48 to 54.13%. It has been determined that the 100 seed weights of the roasted pumpkin seeds produced by some growers fall into the coarse quality class. Research data concluded that soil properties and climatic conditions, which are the growth medium, have a direct effect on the protein and fat content of pumpkin seeds.

The article describes the reminiscences of Oleksnadr Bozhko, Ambassador Extraordinary and Plenipotentiary of Ukraine to Armenia. Having arrived to Yerevan as the first Ambassador of independent Ukraine, the author became a witness to the events that initially led to a long-lasting political crisis, and subsequently to the unconstitutional change of Armenian government. The article analyses the tumultuous events that Ukrainian Embassy faced immediately after its opening in September 1996. At that time, the Armenian society, which for years had been patiently overcoming numerous abuses of power, the arbitrariness of oligarchs, bureaucratic corruption and bribery at courts, broke out with a riot of peaceful disobedience. It was the time when the reminiscences of the fierce Armenian-Azerbaijani War for Nagorno-Karabakh of 1991–1994 were still in minds of people when society had been drawn into an exhaustible internal political confrontation on the eve of the presidential elections. The more electoral confrontation grew, the more dissatisfying was the population with the leadership of the state. Eventually the state of emergency was introduced in the country. These factors affected further activities of Ukrainian diplomats. It was important to quickly find premises suitable for a diplomatic mission and to carry out the diplomatic procedures necessary for the launch of Embassy’s activities. The author states with sorrow that the Ministry of Foreign Affairs of Armenia did not even find money to fuel a car and bring Ukrainian delegation to Yerevan. Shattered roads that have long been unrepaired, queues near bakeries and kerosene selling points, semi-empty store shelves and even faded eyes of those, with whom the author communicated, – those were sad realities of the Armenian life in the mid-nineties. The formation of the diplomatic services in both countries was carried out under difficult conditions, likewise the maintenance of diplomats’ activity in Ukraine was similarly poor then. The article also describes that the stumbling point in Ukrainian-Armenian relations was an issue of Nagorno-Karabakh. The principle of territorial integrity was one of the fundamental in security sphere of Ukraine, whereas Armenia, which acted as guarantor of Nagorno-Karabakh security, adhered to the principle of self-determination of the nation. In this respect, Armenian politicians considered everything related to the Nagorno-Karabakh issue. This dramatic problem was originated from 1921, when Nagorno-Karabakh was included to the Azerbaijani SSR. The policy of displacing the Armenians from their ancestral lands, which was deliberately carried out by the authorities of Soviet Azerbaijan, caused frustration of Armenians, dozens of thousands of whom had lived in that territory for centuries. The author analyses the cooperation with the Directorate for Political Analysis and Planning of the Ministry of Foreign Affairs of Ukraine regarding the defining Ukraine’s possible position in the Armenian-Azerbaijani conflict. The author emphasizes that the article is not just a diplomatic memoirs but also an attempt to comprehend what has happened to us over the past two decades, looking back at the past experience. Keywords: Armenia, Embassy of Ukraine, Nagorno-Karabakh, Ukrainian-Armenian relations.

The forest is one of the most complex natural ecosystems that is one of the basic living conditions of the healthy human life due to its effects on the environment. According to their functions forests can fill security, economic, social, health, tourism, and education as well as research roles. After the end of World War I the level of forest cover decreased to 11.8% in Hungary. At this time Hungary was Europe’s fourth poorest country in forest and tree. The increasing of forest cover was an important objective in each areas since then. The location and the size of the afforested area ultimately will be appointed by the landowners’ intentions. The state can support the success of the afforestation program by various devices, and promote effectively the enforcement of public interest. The New Hungary Rural Development Programme (2007-2013) envisaged the deployment of 69,000 hectares of new forest, of which 70% were implemented. Under the measure support was granted for the first afforestation of areas withdrawn from agricultural cultivation. Despite the above average extent of forest covers in Heves County (24.5% in 2006), further opportunities were opened to increase the forest area. In afforestation terms the high priority regions includes the poor quality arable lands of feet of Mátra and Bükk mountains and the reclamation areas of Visonta open-cast lignite mine in Heves County. During the research, we worked on secondary databases with a view to examine how regional differences there are in within Heves County in the case of location of forest areas and implemented forest plantations. On the one hand we used the data of Forestry Directorate of the National Food Chain Safety Office, on the other hand we worked up the statistics of Agricultural and Rural Development Agency about afforestation subsidies supported in the framework of New Hungary Rural Development Programme (2007-2013). There are significant differences among the districts of Heves County regarding the extent of forest cover between upland and lowland areas. While Pétervására and Bélapátfalva districts were characterized by 61% and 59% forest cover in 2006, at the same time in Füzesabony, Heves and Hatvan districts the same value was slightly higher than 4%. In the period between 2006 and 2015 the rate of forestation increased in all districts of the County at least by 0.2 percent. The growth rate was more than one percent in Heves megye járásai között az erdősültség mértékét illetően jelentős különbségek figyelhetők meg a hegyvidéki és alföldi területek között. Miközben a Pétervásárai járást és a Bélapátfalvai járást 61, illetve 59%-os erdősültség jellemezte, addig a Füzesabonyi, a Hevesi és a Hatvani járásban ez az érték alig haladta meg a 4%-ot. A megye minden egyes járásában növekedett az erdősültség mértéke a 2006 ás 2015 közötti időszakban legalább 0,2 százalékponttal. 1 százalékpont feletti volt a növekedés a Pétervásárai és a Gyöngyösi járásban. Ezáltal jelentős kiterjedésű, mezőgazdasági művelésre kevéssé alkalmas terület kapott új funkciót.Pétervására and Gyöngyös district. Therefore, a significant expanse of land that is less suitable for agricultural cultivation has given a new function.

This study aimed to describe the effectiveness of traffic engineering was conducted by the Surabaya City Government in terms of the use of special lanes motorcycle in Darmo Street, Surabaya. This research used descriptive qualitative. Sources of primary data were collected through the interview method to the Transportation Department in Surabaya City which is connected with the Sub-Directorate of Safety Management and sub field of traffic. The results showed that first, implementation of the use of special lanes motorcycle was proved to decrease jam and provide a positive influence on the smooth traffic. Second, road performance such as Raya Darmo Surabaya Streer tended to have a positive value and stable. It is evidenced by the use of Raya Darmo Street by bikers still rising. Third, some things were still an obstacle for motorcyclists on some streets in Surabaya, such as in Raya Darmo Street: a) there is no special lane U-turn for motorcycles, b) there were no sanctions and threats for motorcyclists didn't use special lanes motorcycle. c) Lack of lighting, markings and traffic signs, d) It has not been the presence of a special officer to supervise the special lanes motorcycles, e) there is no rule speed limit for motors, f) there is no barrier strip permanently between lanes of motorcycles with another lane.

The construction of such a large road facility as the city beltway can not have an impact on the environment. In addition to the obvious benefits to transport, attention should be paid to the environment of the area, in particular noise and air pollution. In December 2017, the Minister of Infrastructure and Construction signed the investment program for the implementation of the northern Krakow bypass road. General Directorate for National Roads and Motorways, the Kraków branch has announced an open tender for its implementation into the EU. Today, in our tender for the design and construction of the northern bypass road of Krakow, 8 offers was received. All tenderers give the date of completion of all works within 47 months. The length of the two-lane section of the beltway is about 12 km, each roadway will have 3 lanes. The POK (North Beltway od Cracow) will run mostly in the area of the Zielonki commune, through the towns of: Zielonki, Bibice, Węgrzce, Bosutów, Dziekanowice and Batowice. The analysis carried out show a very large increase in the value of real estates located in the northern part of Krakow and adjacent areas in recent years. According to the authors, the construction of the northern beltway and easier access to the center of Krakow through the modernization of the November 29 avenue will contribute to even greater interest in real estates located in this area. Real estate prices will certainly increase, rather only at the beginning of the investment. Residents will gain the comfort of an alternative transport line, but there will also be an increase in noise and air pollution, which is a particularly important problem in and around Krakow. The article presents the validation of these three issues in relation to changes in the real estate market in the commune of Zielonki.

Agriculture is a biological industry with highly vulnerable to natural factors, so the cultivation of wheat crop is very risky in lands, characterized by high levels of soil salinity, leading to high risk and uncertainty component. For this Al-MOTAD model has been adopted to analysis the risk. The research depends on a random sample composed of 590 farmers, representing eight agricultural sectors from agricultural cultivation Wasit Directorate. The Basic Plan for linear programming been designed , and then built al MOTAD model for risk, after nine plans to al MOTAD model represent different levels of degrees of risk posed by the average total absolute deviations A, with levels of income E, until it reached the degree of risk to a minimum as possible in results of ninth Plan to zero level for degrees of risk with the level of net return of 39028220 dinars, cultivation 260578 donnum, and 145560 donnum, and 122748 donnum, and 83611.7 donnum of wheat in different levels of the soil which does not exceed the salinity 8 ds m-1. And cultivating 10428 donnum of industrial barley , and 137663.3 donnum of Gath, and 2422.8 donnum maize in the land that salinity level higher than 8 ds m-1.

In preparation for a legal implementation of EU-regulation 1829/2003, the Norwegian Scientific Committee for Food Safety (VKM) has been requested by the Norwegian Directorate for Nature Management to conduct final environmental risk assessments for all genetically modified organisms (GMOs) and products containing or consisting of GMOs that are authorized in the European Union under Directive 2001/18/EC or Regulation 1829/2003/EC. The request covers scope(s) relevant to the Gene Technology Act. The request does not cover GMOs that VKM already has conducted its final risk assessments on. However, the Directorate requests VKM to consider whether updates or other changes to earlier submitted assessments are necessary. The genetically modified, glufosinate-tolerant oilseed rape lines MS8, RF3 and MS8 x RF3 (Notification C/BE/96/01) are approved under Directive 2001/18/EC for import and processing for feed and industrial purposes since 26 March 2007 (Commission Decision 2007/232/EC). In addition, processed oil from genetically modified oilseed rape derived from MS8, RF3 and MS8 x RF3 were notified as existing food according to Art. 5 of Regulation (EC) No 258/97 on novel foods and novel food ingredients in November 1999. Existing feed and feed products containing, consisting of or produced from MS8, RF3 and MS8 x RF3 were notified according to Articles 8 and 20 of Regulation (EC) No 1829/2003 and were placed on the market in January 2000. An application for renewal of the authorisation for continued marketing of existing food, food ingredients and feed materials produced from MS8, RF3 and MS8 x RF3 was submitted within the framework of Regulation (EC) No 1829/2003 in June 2007 (EFSA/GMO/RX/MS8/RF3). In addition, an application covering food containing or consisting of, and food produced from or containing ingredients produced from oilseed rape MS8, RF3 and MS8 x RF3 (with the exception of processed oil) was delivered by Bayer CropScience in June 2010 (EFSA/GMO/BE/2010/81). The VKM GMO Panel has previously issued a scientific opinion related to the notification C/BE/96/01 for the placing on the market of the oilseed rape lines for import, processing and feed uses (VKM 2008). The health and environmental risk assessment was commissioned by the Norwegian Directorate for Nature Management in connection with the national finalisation of the procedure of the notification C/BE/96/01 in 2008. Due to the publication of updated guidelines for environmental risk assessments of genetically modified plants and new scientific literature, the VKM GMO Panel has decided to deliver an updated environmental risk assessment of oilseed rape MS8, RF3 and MS8 x RF3. A scientific opinion on an application for the placing on the market of MS8/RF3 for food containing or consisting of, and food produced from or containing ingredients produced from MS8/RF3 (with the exception of processed oil) (EFSA/GMO/BE/2010/81) have also been submitted by the VKM GMO Panel (VKM 2012). The environmental risk assessment of the oilseed rape MS8, RF3 and MS8 x RF3 is based on information provided by the notifier in the applications EFSA/GMO/RX/MS8/RF3, EFSA/GMO/BE/2010/8, the notification C/BE/96/01, and scientific comments from EFSA and other member states made available on the EFSA website GMO Extranet. The risk assessment also considered other peer-reviewed scientific literature as relevant. The VKM GMO Panel has evaluated MS8, RF3 and MS8 x RF3 with reference to its intended uses in the European Economic Area (EEA), and according to the principles described in the Norwegian Gene Technology Act and regulations relating to impact assessment pursuant to the Gene Technology Act, Directive 2001/18/EC on the deliberate release into the environment of genetically modified organisms, and Regulation (EC) No 1829/2003 on genetically modified food and feed. The Norwegian Scientific Committee for Food Safety has also decided to take account of the appropriate principles described in the EFSA guidelines for the risk assessment of GM plants and derived food and feed (EFSA 2006, 2011a), the environmental risk assessment of GM plants (EFSA 2010), the selection of comparators for the risk assessment of GM plants (EFSA 2011b), and for the post-market environmental monitoring of GM plants (EFSA 2006, 2011c). The scientific risk assessment of oilseed rape MS8, RF3 and MS8 x RF3 include molecular characterisation of the inserted DNA and expression of target proteins, comparative assessment of agronomic and phenotypic characteristics, unintended effects on plant fitness, potential for horizontal and vertical gene transfer, and evaluations of the post-market environmental plan. In line with its mandate, VKM emphasised that assessments of sustainable development, societal utility and ethical considerations, according to the Norwegian Gene Technology Act and Regulations relating to impact assessment pursuant to the Gene Technology Act, shall not be carried out by the Panel on Genetically Modified Organisms. The genetically modified oilseed rape lines MS8 and RF3 were developed to provide a pollination control system for production of F1-hybrid seeds (MS8 x RF3). Oilseed rape is a crop capable of undergoing both self-pollination (70%) as well as cross-pollination (30%). Therefore a system to ensure only cross-pollination is required for producing hybrids from two distinct parents. As a result of hybrid vigor cross-pollinated plants produce higher yield as compared to self-pollinating rape. The hybrid system is achieved using a pollination control system by insertion and expression of barnase and barstar genes derived from the soil bacterium Bacillus amyloliquefaciens into two separate transgenic oilseed rape lines. The barnase gene in the male sterile line MS8 encode a ribonuclease peptide (RNase), expressed in the tapetum cells during anther development. The RNase effect RNA levels, disrupting normal cell function, arresting early anther development, and results in the lack of viable pollen and male sterility. The fertility restoration line RF3 contains a barstar gene, coding for a ribonuclease inhibitor (Barstar peptide) expressed only in the tapetum cells of the pollen during anther development. The peptide specifically inhibits the Barnase RNase expressed by the MS8 line. The RNase and the ribonuclease inhibitor form a stable one-to-one complex, in which the RNase is inactivated. As a result, when pollen from the receptor line RF3 is crossed to the male sterile line MS8, the MS8 x RF3 progeny expresses the RNase inhibitor in the tapetum cells of the anthers allowing hybrid plants to develop normal anthers and restore fertility. The barnase and barstar genes in MS8 and RF3 are each linked with the bar gene from Streptomyces hygroscopus. The bar gene is driven by a plant promoter that is active in all green tissues of the plant, and encodes the enzyme phosphinothricin acetyltransferase (PAT). The PAT enzyme inactivates phosphinothricin (PPT), the active constituent of the non-selective herbicide glufosinate-ammonium. The bar gen were transferred to the oilseed rape plants as markers both for use during in vitro selection and as a breeding selection tool in seed production. Molecular characterization: The oilseed rape hybrid MS8xRF3 is produced by conventional crossing. The parental lines MS8 and RF3 are well described in the documentation provided by the applicant, and a number of publications support their data. It seems likely that MS8 contains a complete copy of the desired T-DNA construct including the bar and barnase genes. Likewise, the event RF3 is likely to contain complete copies of the bar and barstar genes in addition to a second incomplete non-functional copy of the bar-gene. The inserts in the single events are preserved in the hybrid MS8xRF3, and the desired traits are stably inherited over generations. Oilseed rape MS8, RF3 and MS8xRF3 and the physical, chemical and functional characteristics of the newly expressed proteins have previously been evaluated by the VKM Panel on Genetically Modified Organisms, and considered satisfactory (VKM 2008, 2012). The GMO Panel finds the characterisation of the physical, chemical and functional properties of the recombinant inserts in the oilseed rape transformation events MS8, RF3 and MS8xRF3 to be satisfactory. The GMO Panel has not identified any novel risks associated with the modified plants based on the molecular characterisation of the inserts. Comparative assessment: Based on results from comparative analyses of data from field trials located at representative sites and environments in Europe and Canada, it is concluded that oilseed rape MS8, RF3 and MS8 x RF3 is agronomically and phenotypically equivalent to the conventional counterpart, except for the newly expressed barnase, barstar and PAT proteins. The field evaluations support a conclusion of no phenotypic changes indicative of increased plant weed/pest potential of event MS8, RF3 and MS8 x RF3 compared to conventional oilseed rape. Furthermore, the results demonstrate that in-crop applications of glufosinate herbicide do not alter the phenotypic and agronomic characteristics of event MS8, RF3 and MS8 x RF3 compared to conventional oilseed rape varieties. Environmental risk: Considering the scope of the notification C/BE/96/01, excluding cultivation purposes, the environmental risk assessment is limited to exposure through accidental spillage of viable seeds of MS8, RF3 and MS8 x RF3 into the environment during transportation, storage, handling, processing and use of derived products. Oilseed rape is mainly a self-pollinating species, but has entomophilous flowers capable of both self- and cross-pollinating. Normally the level of outcrossing is about 30%, but outcrossing frequencies up to 55% are reported. Several plant species related to oilseed rape that are either cultivated, occurs as weeds of cultivated and disturbed lands, or grow outside cultivation areas to which gene introgression from oilseed rape could be of concern. These are found both in the Brassica species complex and in related genera. A series of controlled crosses between oilseed rape and related taxa have been reported in the scientific literature. Because of a mismatch in the chromosome numbers most hybrids have a severely reduced fertility. Exceptions are hybrids obtained from crosses between oilseed rape and wild turnip (B. rapa ssp. campestris) and to a lesser extent, mustard greens (B. juncea), where spontaneously hybridising and transgene introgression under field conditions have been confirmed. Wild turnip is native to Norway and a common weed in arable lowlands. Accidental spillage and loss of viable seeds of MS8, RF3 and MS8 x RF3 during transport, storage, handling in the environment and processing into derived products is likely to take place over time, and the establishment of small populations of oilseed rape MS8, RF3 and MS8 x RF3 cannot be excluded. Feral oilseed rape MS8, RF3 and MS8 x RF3 arising from spilled seed could theoretically pollinate conventional crop plants if the escaped populations are immediately adjacent to field crops, and shed seeds from cross-pollinated crop plants could emerge as GM volunteers in subsequent crops. However, both the occurrence of feral oilseed rape resulting from seed import spills and the introgression of genetic material from feral oilseed rape populations to wild populations are likely to be low in an import scenario in Norway. There is no evidence that the herbicide tolerant trait results in enhanced fitness, persistence or invasiveness of oilseed rape MS8, RF3 and MS8 x RF3, or hybridizing wild relatives, compared to conventional oilseed rape varieties, unless the plants are exposed to herbicides with the active substance glufosinate ammonium. Apart from the glufosinate tolerance trait, the resulting progeny will not possess a higher fitness and will not be different from progeny arising from cross-fertilisation with conventional oilseed rape varieties. Glufosinate ammonium-containing herbicides have been withdrawn from the Norwegian market since 2008, and the substance will be phased out in the EU in 2017 for reasons of reproductive toxicity. Overall conclusion: The VKM GMO Panel concludes that oilseed rape MS8, RF3 and MS8xRF3 are unlikely to have any adverse effect on the environment in Norway in the context of its intended usage.

The HETD (Hot End Technologies Directorate) of GTRE (Gas Turbine Research Establishment) has the mandate of design, development and delivery of airworthy combustor and afterburner modules for a military aero gas turbine engine. In order to meet the mandate, the directorate takes the overall responsibility of design to manufacture of the combustion systems. Three-dimensional CFD (Computational Fluid Dynamics) analyses played a vital role in arriving at the final configuration meeting the specific design targets. This paper focuses on the utilization of the CFD code ‘Fluent’ in the successful realization of the main combustor of an aero gas turbine engine.

Since the 60’s, the structures of Herstal Viaducts have suffered from a dysfunction of expansion joints, drainage system and been exposed to a high level of corrosion. On top, existing road layout, without shoulders and insertion/deceleration lanes at connection to existing junctions, lead to an unsatisfactory level of safety. During 2012, Belgian road directorate (S.P.W.) has developed and implemented an extensive inspection plan and design program to assess the existing structures. An important public works contract has been awarded early 2014 to refurbish, strengthen and upgrade the existing viaducts.

The Hot End Technologies Directorate (HETD) of Gas Turbine Research Establishment (GTRE) has the mandate to design, development and delivery of airworthy combustor and afterburner modules for a military aero gas turbine engine. In order to meet the mandate, the directorate takes the overall responsibility of design to manufacture of the combustion systems. This paper addresses the challenges faced in the development of combustor module. A short annular combustor with air blast atomizer is incorporated in the engine and it is a very important equipment of a gas turbine engine, wherein the heat energy is added to get Turbine Inlet Temperature (TET). It comprises of a pre-diffuser, a dump diffuser, outer annulus, inner annulus and a flame tube. There has been a basic liner, which was used in earlier engines and there was a shortfall in terms of performance parameters — allowable profile and pattern factors. To improve the performance, in collaboration with the M/s Central Institute of Aviation Motors (CIAM), Moscow, Russia, the liner was redesigned [1]. The secondary holes were totally blocked, primary and dilution holes were altered and it was incorporated with a new dome with a modified curvature. A new air blast atomizer with a swirler having an outer and inner pintle was incorporated. The basic liner was incorporated with these modifications and making this dome out of the high temperature resistance nickel chromium alloy was challenging and it was realized. The liner assemblies incorporating all the welding details have been realized within the GTRE. The combustor system was tested for ground light up to 4.3 km. The light up time was of the order of 5 s. The pressure loss was of the order of 4.9% at a combustor inlet Mn of 0.30. The circumferential and radial pattern factor for the modified liner is of 0.36 and 0.14 respectively.

In 1991 under a Space Act Agreement between then Allison Gas Turbine Division (Rolls-Royce), NASA Lewis (NASA Glenn), and the Army Propulsion Directorate, a combined experimental and analytical research program was initiated to assess the capability of advanced computational fluid dynamics (CFD) codes to predict the aerodynamic performance of high-speed, high-aerodynamic- loaded axial flow compressors. Both two-stage compressors that were designed, fabricated, and tested in this study and reported upon in this paper had a design pressure ratio of 5:1. In addition, several tests were run of the first stage of each of these two-stage machines in isolation. Extensive use was made of CFD codes to support the aero-design process. The objective of this paper is to report upon what was learned from this aero- design exercise. Both experimental and post-test CFD simulation results are presented. The original build of the two stage compressor fell short of meeting the targeted aero-performance goals. The shortcomings of this design are attributed to the failure of the CFD simulations conducted in support of the design to capture key phenomena which limited the aero-performance of the compressor. This failure is not due to the inability of the CFD code to account for these key phenomena. Rather the fault lies in not accounting for them in the simulations that were conducted in support of the aerodynamic design. Finally the paper outlines the steps taken in the aerodynamic design of the second build to overcome the shortcomings of the first build.

In an era of both declining NASA budgets and demanding space goals, the NASA Aeronautics Research Mission Directorate has elected to address foundational research problems for aeronautics. To this end, the Subsonic Fixed Wing (SFW) Project, within the Fundamental Aeronautics Program, has selected challenging goals which anticipate an increasing emphasis on aviation’s impact upon the global issue of environmental responsibility. These SFW project goals are greatly reduced noise, reduced emissions and reduced fuel consumption. Specific goals, selected by a combination of systems analysis, experience and industry input, are generational in approach, addressing 25 to 30 years of technology development. Successful implementation of these demanding goals will require development of new materials and structural approaches within gas turbine propulsion technology. The Materials and Structures discipline, within the SFW project, comprise cross-cutting technologies ranging from basic investigations to component validation in laboratory environments. Material advances are teamed with innovative designs in a multidisciplinary approach with the resulting technology advances directed to promote the goals of reduced noise and emissions along with improved performance. For propulsion needs, these technologies have been grouped into three basic categories. The first is improved hot section materials for hotter engines with minimal cooling requirements to promote reduced NOx and fuel burn. Among the technologies of interest have been new alloy compositions and improved thermal barrier coatings systems with improved capabilities. The second category being investigated for propulsion applications is lightweight and multifunctional systems which will permit reduced fuel burn via weight reduction in the engine and its surrounding structure. An example of this technology is High Temperature Shape Memory Alloys (HTSMA) for actuation applications requiring large displacements and low frequencies such as chevrons and variable area nozzles for high bypass ratio engines. The final area under investigation is the concept of the more electric aircraft, which at this time is focused primarily on turboelectric technology as a available to make reasonable progress. Technologies from very basic fundamental research to nearer term concepts are included. Additionally, vigorous supplementation of in-house capabilities is revolutionary approach to the entire SFW design space. Major challenges to be addressed in this field include improved cryocoolers and superconducting materials. A brief overview is presented of the current materials and structures research focused upon propulsion applications within the NASA Subsonic Fixed Wing Project. As such, it does not comprise the entirety of materials and structures research for gas turbine engines at NASA. Several other projects also include research of this type to address their specific project goals.