scholarly journals Effect of pure Aluminum in Reduction of Silica from Sediments in Iraqi-Tigris

2019 ◽  
Vol 12 (1) ◽  
pp. 56-60
Author(s):  
Bariq Ali Hilal ◽  
Sami Ibrahim Al-Rubaiey
Keyword(s):  
Chemical Reduction ◽  
Pure Aluminum ◽  
Extraction Process ◽  
Mixing Ratio ◽  
Pure Silicon ◽  
Second Stage ◽  
The Third ◽  
Tigris River ◽  
Two Stages ◽  
The City

This work was carried out on sediments in the Iraqi- Tigris river within the city of Baghdad. Three locations were taken from the Tigris river. The first is at the entrance to Baghdad City (Al-Muthanna Bridge), the second in central Baghdad (Adhamiya) and the third at the end of Baghdad (Diyala Jisr). The specimens were taken from the banks of the Tigris river at 1.5 meters from the edge of the water and a depth of 2 meter. The sediments contain in the three locations have a slight difference in concentrations of compounds. Sediments formed mainly from silica, which concentrations were between 59 - 66%. Therefore, the study focused on extracting the pure silicon element from these sediments. The extraction process of silicon from the sediments was performed in two stages. The first is pyrometallurgy stage, in which the reduction of silica was performed by mixing pure aluminum powder with sediments  at different mixing ratio (1:1, 1.5:1 and 2:1) sediments/aluminum and at temperatures (900 - 950 and 1000)° C. The second stage was hydrometallurgy, which involved chemical reduction using at different concentrations (3,4 and 5M) of sulfuric acid to obtain silicon element with purity, 98. 9%. The efficiency of extracted  silicon from sediments of Tigris river is ≥  (88%).

Signs of polichnous deformations in microstructures of carbonate rocks of the Katav-Yuryuzan zone of transpression (Southern Urals)

2020 ◽  
pp. 13-21
Author(s):  
A. V. Tevelev ◽  
A. A. Borisenko ◽  
M. I. Erokhina ◽  
S. S. Popov ◽  
I. A. Kosheleva ◽  
...  
Keyword(s):  
Simple Shear ◽  
Carbonate Rocks ◽  
Pure Shear ◽  
Southern Urals ◽  
Second Stage ◽  
The Third ◽  
The North ◽  
Third Stage ◽  
Three Stages ◽  
Two Stages

The Katav-Ivanovsk transpression zone experienced at least two stages of tectonic deformations, and the sequence of deformations was approximately the same throughout the entire zone — from the Bakal-Satka fault in the south to the Suleimsky fault in the north. Three stages of the formation of parageneses were identified. The parageneses of the first and the second stages were formed in a pure shear environment, and the paragenesis of the third stage — in a simple shear environment. There are stylolites (S1) parallel to bedding, and mineral veins (V1) in the paragenesis of the first stage. Paragenesis of the second stage combines stylolites (S2), mineral veins (V2) and intergranular cleavage (S2). In paragenesis of the third stage were distinguished schistosity (S3), milonites (S3), cataclasites, mica packets (SC-textures), and the rotation structures of porphyroblasts.

scholarly journals The Reaction Thermodynamics during Plating Al on Graphene Process

Materials ◽  
2019 ◽  
Vol 12 (2) ◽  
pp. 330 ◽  
Author(s):  
Zhanyong Zhao ◽  
Peikang Bai ◽  
Liang Li ◽  
Jing Li ◽  
Liyun Wu ◽  
...  
Keyword(s):  
Free Energy ◽  
Gibbs Free Energy ◽  
Chemical Reduction ◽  
Enthalpy Change ◽  
Reaction Process ◽  
Endothermic Reaction ◽  
Graphene Surface ◽  
Second Stage ◽  
Reaction Thermodynamics ◽  
Two Stages

This research explored a novel chemical reduction of organic aluminum for plating Al on a graphene surface. The thermodynamics of the Al plating reaction process were studied. The Al plating process consisted of two stages: the first was to prepare (C2H5)3Al. In this reaction, the ΔH(enthalpy) was 10.64 kcal/mol, the ΔG(Gibbs free energy) was 19.87 kcal/mol and the ΔS(entropy) was 30.9 cal/(mol·K); this was an endothermic reaction. In the second stage, the (C2H5)3Al decomposed into Al atoms, which were gradually deposited on the surface of the graphene and the Al plating formed. At 298.15 K, the ΔH was −20.21 kcal/mol, the ΔG was −54.822 kcal/mol, the ΔS was 116.08 cal/(mol·K) and the enthalpy change was negative, thus indicating an endothermic reaction.

scholarly journals Rethinking the place of students intermediated by the Geographic, Historical and Cultural School Atlas of the Federal District, Brazil

2019 ◽  
Vol 2 ◽  
pp. 1-4
Author(s):  
Vânia Lúcia Costa Alves Souza ◽  
Míriam Aparecida Bueno ◽  
Cristina Maria Costa Leite
Keyword(s):  
Basic Education ◽  
Spatial Reasoning ◽  
Federal District ◽  
Teaching Methodology ◽  
Second Stage ◽  
Living Space ◽  
Teachers And Students ◽  
Didactic Material ◽  
Two Stages ◽  
The City

<p><strong>Abstract.</strong> The Basic Education teachers in Brazil face difficulties inherent in working with the geographical categories: Landscape, territory, region and place. These difficulties are related to the training of teachers who do not understand these categories and the lack of appropriate didactic material. The absence of local thematic maps prevents the understanding of the place as a living space and as a correlation of stories in the different scenarios of the city "The study of the place as a proposal for the continuing education of teachers of Basic Education from the School Atlas" is a project that allows teachers and students of the DF to approach these categories. The project is divided into two stages. The first stage was the preparation of the Geographic, Historical and Cultural School Atlas of the Federal District (AEGHC DF), completed in 2018. The second stage will be the training course for Basic Education teachers with exercises that involve the place category as a daily space that allows the construction of identities. The purpose of this article is to investigate the use of the AEGHC DF as an important mediator in the construction of spatial categories such as place and landscape in Geography classes. The Atlas is presented as a teaching methodology and strategy in the development of cartographic skills in the development of spatial reasoning. The AEGHC DF invites students and teachers to know more about maps, visualizing spaces, creating narratives and getting to know the place where they live.</p>

scholarly journals PENYULUHAN TENTANG CUCI TANGAN PAKAI SABUN (CPTS) UNTUK MENCEGAH PEYEBARAN CORONAVIRUS (COV) DI WILAYAH KERJA PUSKESMAS KARANG PULE

2020 ◽  
Vol 4 (1) ◽  
pp. 370
Author(s):  
Cahaya Indah Lestari ◽  
Catur Esty Pamungkas ◽  
Siti Mardiyah WD ◽  
Baiq Masdariah
Keyword(s):  
Community Service ◽  
Good Condition ◽  
Hand Washing ◽  
Second Stage ◽  
The Third ◽  
Third Stage ◽  
Post Test ◽  
Three Stages ◽  
The City ◽  
Handwashing With Soap

ABSTRAKSecara global dilaporkan 51.857 kasus konfimasi di 25 negara dengan 1.669 kematian (CFR 3,2%). Jumlah pasien positif Covid-19 di Provinsi NTB sampai tanggal (30/6/2020) sebanyak 1.245 orang, dengan perincian 825 orang sudah sembuh, 65 meninggal dunia, serta 355 orang masih positif dan dalam keadaan baik. Sedangkan jumlah pasien positif Covid-19 di Kota Mataram sebanyak 531 orang, dengan perincian 189 sedang dirawat, 310 orang sudah sembuh, 32 meninggal dunia. Tujuan pengabdian ini untuk mencegah penyebaran coronavirus (COV) di wilayah kerja Puskesmas Karang Pule Kegiatan penyuluhan ini menggunakan video cara Cuci Tangan Pakai Sabun (CTPS) Kemenkes dimana peserta pengabdian yang hadir berjumlah 20 orang. Kegiatan ini dilakukan dalam tiga tahap. Tahap pertama yakni pembagian kuesioner dan pemaparan, tahap kedua yakni Praktek Cuci Tagan Pakai Sabun dan tahap ketiga yakni tanya jawab serta pembagian kuesioner post test. Kegiatan pengabdian ini disambut sangat antusias, ibu melontarkan beberapa pertanyaan terkait Cuci Tangai Pakai Sabun dan pembuatan cairan disinfektan Sebagian besar ibu paham dengan penyuluhan yang diberikan. Penyuluhan ini dapat meningkatkan pengetahuan ibu dengan kategori pengetahuan baik  sebesar 90 % (18 0rang)  tentang Cuci Tangan Pakai Sabun (CTPS) untuk pencegahan coronavirus .Kata kunci: Penyuluhan; Cuci Tangan Pakai Sabun; Pencegahan Coronavirus. ABSTRACTGlobally, 51,857 confirmed cases were reported in 25 countries with 1,669 deaths (CFR 3.2%). The number of Covid-19 positive patients in NTB Province as of (6/30/2020) was 1,245 people, with details of 825 people recovered, 65 dead, and 355 people still positive and in good condition. While the number of positive patients Covid-19 in the city of Mataram was 531 people, with the details of 189 being treated, 310 people were cured, 32 died. The purpose of this service is to prevent the spread of coronavirus (COV) in the working area of Karang Pule Health Center. This counseling activity uses a video on how to wash hands with soap (CPTS) from the Ministry of Health where there are 20 community service attendees. This activity is carried out in three stages. The first stage is the distribution of questionnaires and exposure, the second stage is the Practice of Washing with Soap and the third stage is the question and answer session and the distribution of post test questionnaires. This service was welcomed with great enthusiasm, the mother asked a number of questions related to washing Tangai with soap Most of the mothers understood the counseling given. This counseling can increase the knowledge of mothers with good knowledge categories by 90% (18 people) about Handwashing with Soap (CTPS) for the prevention of coronavirus. Keywords: Counseling; hand washing behavior with soap; Coronavirus Prevention.

The influence of Trypanites in the diagenesis of Devonian stromatoporoids

1988 ◽  
Vol 62 (01) ◽  
pp. 22-31 ◽  
Author(s):  
S. George Pemberton ◽  
Brian Jones ◽  
Gregory Edgecombe
Keyword(s):  
Complex Interaction ◽  
Growth Stages ◽  
Initial Growth ◽  
Third Generation ◽  
Fort Mcmurray ◽  
Second Stage ◽  
The Third ◽  
Profound Influence ◽  
Two Generations ◽  
Two Stages

Stromatoporoids from the Late Devonian (early Frasnian) Waterways Formation near Fort McMurray, Alberta, contain well preservedTrypanitesMägdefrau. The stromatoporoid heads are formed of an initial growth ofClathrocoilona inconstansStearn that is encased by a second stage growth ofTrupetostroma papulosumStearn. These two stages were separated by a period of no growth and erosion. The first two generations of boring penetrated the skeleton ofC. inconstanswhile the third generation borings penetrated bothC. inconstansandT. papulosum.The borings in the stromatoporoids are filled with light colored micrite, dark colored micrite, skeletal fragments, dolomite, non-ferroan calcite, and ferroan calcite. Analysis of the borings, the growth stages of the stromatoporoids, the boring fill, and the orientation of the geopetal fabrics indicates that the stromatoporoids were subjected to repeated cycles of growth-boring-filling and reorientation. This complex interaction of biologic and physical reworking had a profound influence on the diagenetic transformation of the stromatoporoid heads. This example clearly illustrates the role that biogenic agents can play in the production of diagenetic fabrics of hard carbonate substrates.

scholarly journals Robust security against cyber threats with variety of captchaGüvenlik kodu çeşitliliği ile siber tehditlere karşı güçlü güvenliğin sağlanması

2018 ◽  
Vol 15 (3) ◽  
Author(s):  
Huseyin Çakır ◽  
Necla Uluhatun
Keyword(s):  
Full Text ◽  
English Summary ◽  
Rapid Progress ◽  
Second Stage ◽  
Cyber Threats ◽  
The Third ◽  
Third Stage ◽  
Combination Test ◽  
Will Force ◽  
Two Stages

Cyberspace also brings about cybercrime, which is evolving along with the rapid progress of technology and internet. Captchars are used as a layer of security to prevent these crimes. It is a security mechanism designed to distinguish whether an entry is made by the user when entering a system and is used for protection against malicious bot programs. For this reason, it is important that the introduction is done by human or bot software.In this study, a safer Captcha combination test was presented based on Captcha types and Captcha studies. The proposed approach basically consists of three steps. In the first step, the user is asked to test with a simple text-based Captcha to avoid the difficulty of captcha testing. The second stage, when the first stage test is unsuccessful, offers a more complicated captcha test with text and picture. In the third stage, different-based captcha are presented which are more complex than the first two stages and will force the user. This approach makes it easier to distinguish the bot with the user, and the bot program's algorithm can be challenged with the variety of captcha combinations created. Extended English summary is in the end of Full Text PDF (TURKISH) file.ÖzetSiber dünyada, teknoloji ve internetin hızla ilerlemesi beraberinde gelişmekte olan siber suçları da getirmektedir. Güvenlik kodlar (captcha) bu suçları engellemek amacıyla oluşturulan bir güvenlik katmanı olarak kullanılırlar. Bir sisteme giriş yapıldığında girişin kullanıcı tarafından yapılıp yapılmadığının ayırt edilebilmesi için tasarlanmış bir güvenlik mekanizması ve kötü niyetli bot programlarına karşı korunma amaçlı kullanılır. Bu nedenle girişin insan mı yoksa bot yazılımı tarafından mı yapıldığı önem arz etmektedir.Bu çalışmada, Güvenlik kod (captcha) türleri ve yapılan Güvenlik kod (captcha) çalışmaları baz alınarak daha güvenli bir Güvenlik kod (captcha)  kombinasyon testi sunulmuştur. Önerilen yaklaşım temelde üç aşamadan oluşmaktadır. İlk aşamada kullanıcının Güvenlik kod (captcha) ile imtihanını zorlaştırmamak için metin tabanlı basit Güvenlik kod (captcha) ile test edilmesi istenmektedir. İkinci aşamada, ilk aşama testi başarısız olduğunda metin ve resim tabanlı daha zorlaştırılmış Güvenlik kod (captcha) testi sunulmaktadır. Üçüncü aşamada ise ilk iki aşamadan daha karmaşık ve kullanıcıyı zorlayacak farklı tabanlı Güvenlik kodu (captcha)  sunulmaktadır. Bu yaklaşım ile kullanıcı ile bot ayırımı daha kolay yapılabilmekte ve oluşturulan Güvenlik kodu (captcha)  birleşim çeşitliliği ile bot programlarının algoritmasına meydan okunabilmektedir. 

scholarly journals PENGARUH INSTITUSI PENDIDIKAN DAN RUMAH SAKIT TERHADAP TRANSFORMASI KAWASAN PERUMAHAN MELALUI ANALISIS TIPOMORFOLOGI

2018 ◽  
Vol 16 (1) ◽  
pp. 32
Author(s):  
Mariska Pratimi ◽  
Azzahra M.Firdausah
Keyword(s):  
Homogeneous Function ◽  
Residential Areas ◽  
Second Stage ◽  
Commercial Activities ◽  
Function Change ◽  
Commercial Housing ◽  
Invasion Pattern ◽  
Two Stages ◽  
The City

<p align="center"><strong>ABSTRAK</strong></p><p><strong> </strong></p><p>Fenomena menjadikan rumah tinggal sebagai rumah-usaha di beberapa kawasan perumahan, ditunjukkan dengan terjadinya masuknya fungsi baru ke dalam suatu fungsi yang homogen. Adanya aktifitas komersial pada kawasan perumahan akan mengakibatkan perubahan tatanan ruang lingkup hunian secara fisik maupun non fisik. Penelitian ini dilakukan dengan dua tahap, tahap pertama mengidentifikasi metode-metode yang digunakan untuk menganalisis perubahan fungsi lahan. Tahap kedua yaitu menguji metode yang terpilih pada studi kasus pada sebuah perubahan fungsi kawasan perumahan di Kota Bandung. Hasil identifikasi metode ditemukan bahwa tipomorfologi dapat  digunakan untuk menerangkan perubah-perubahan dari suatu tipe, di mana suatu tipe memiliki ciri-ciri tertentu yang dapat membedakannya dengan tipe-tipe yang lain. Proses perubahan fungsi yang terjadi pada Koridor Hasanudin dan Prof. Eykman sangat dipengaruhi oleh adanya aktivitas rumah sakit dan universitas sehingga pola perkembangan yang terjadi adalah pola invasi linear dan pola dominasi radial. Perubahan fungsi yang terjadi pada dua koridor memberikan dampak berupa gangguan lalu lintas akibat on street parking dan perubahan sirkulasi jalan.</p><p> </p><p>Kata kunci: komersial, perumahan, perubahan fungsi, tipomorfologi</p><p> </p><p><strong> </strong></p><p align="center"><strong><em>ABSTRACT</em></strong></p><p><em>The phenomenon of making a home as a business house in several residential areas is indicated by the entry of a new function into a homogeneous function. The presence of commercial activities in residential areas will result in changes in the physical and non-physical occupancy scope of the occupancy. This research was conducted in two stages, the first stage identified the methods used to analyze changes in land functions. The second stage is testing the method chosen in the case study on a change in the function of the residential area in the city of Bandung. The method identification results found that typomorphology can be used to explain changes of a type, where a type has certain characteristics that can distinguish it from other types. The function change process that occurs in the Hasanudin Corridor and Prof. Eykman is strongly influenced by the activities of hospitals and universities so that the pattern of development that occurs is a linear invasion pattern and a pattern of radial dominance. Function changes that occur in the two corridors have an impact in the form of traffic disruption due to on street parking and changes in road circulation.</em></p><p><em> </em></p><p><em>Keywords: commercial, housing, function change, typomorphology</em></p>

scholarly journals Changes in humidity and temperature inside the pine cones (Pinus sylvestris L.) in two stages seed extraction

2013 ◽  
Vol 74 (3) ◽  
pp. 205-214 ◽  
Author(s):  
Monika Aniszewska
Keyword(s):  
Pinus Sylvestris ◽  
Lower Limit ◽  
Extraction Process ◽  
Continuous Control ◽  
Air Humidity ◽  
Two Stage ◽  
Second Stage ◽  
Seed Extraction ◽  
Pine Cones ◽  
Two Stages

Abstract Temperature measurements were taken: (1) under opening scales, (2) at the seed, and (3) in the stem, of pine cones. Changes in temperature were only examined during the second stage of a two-stage seed extraction process. During this phase a permanent dehydration temperature of 50°C was used, following comparison over a ranges of temperatures, between a lower limit of 35°C and a higher limited of 50°C. The temperature was slowest to increase in the cone’s stem, and fastest to increase under opening scales. The temperature at the seed remained constant at around 43°C for the first hour of dehydration, before increasing to 50°C. The two-stages method of cone extraction employed here, with a permanent dehydration temperature of 50°C in second stage, can be used in extraction cabinets equipped with seed extractors that allow the continuous control of air humidity. The time spent soaking during the inter-stage break should last 5 minutes. Viability of seeds obtained in two-stages process was 78% to 89%

The Accommodation Reflex (Pupillary) studied in the same Patients during the Three Stages of General Paralysis [Ze réxe accommodateur étudié chez les mêmes malades aux trois périodes de la paralysie générale]. (Rev. de Psychiat., No. 6, Juin, 1902.) Marandon de Montyel

1903 ◽  
Vol 49 (204) ◽  
pp. 177-178
Author(s):  
H. J. Macevoy
Keyword(s):  
Early Stage ◽  
Rapid Evolution ◽  
Motor Power ◽  
General Paralysis ◽  
Second Stage ◽  
The Third ◽  
Third Stage ◽  
Three Stages ◽  
Two Stages ◽  
Two Sides

Dr. de Montyel gives the results of his investigations on the sixth of the reflexes which he undertook to study in general paralysis. The discrepancies noticed in the conclusions of many other observers are attributed to their studying patients in various stages; in all researches of this nature it is indispensable to follow the only method susceptible of furnishing data which may be compared with one another,—that is, following up and examining the same patients from the onset to the termination of the disease. Out of 104 cases of general paralysis this method was satisfactorily carried out in the case of thirty only, the others having succumbed either in the first or second stage; 680 satisfactory observations were made, and the results of these are carefully tabulated. The following are some of the author's general conclusions:—Accommodation is more often abnormal than normal in general paralysis; exaggeration of the reflex is rare; diminution is twenty-four times more frequent—abolition being slightly more common than simple diminution. The reaction is nearly always equal on the two sides; in a few rare cases one finds normal accommodation on one side and abolition on the other. In the early stage only does one find normal accommodation more frequent than abnormal; but in the second, and more so in the third stage, abnormality is the rule. Abolition is commoner in the late stage. In more than a third of the remissions there was abnormality. Certain differences in the accommodation reflex are found in the various forms of the disease; it is more often and more profoundly altered with conditions of excitement. As regards the ætiology the reflex was always found abnormal in traumatic general paralysis; next in frequency (i. e. after abnormality of reflex) comes the alcoholic form. Alteration of the reflex is common with cases at the extreme ages of incidence of the disease (after fifty and below thirty). Accommodation was more often and more profoundly affected in the first two stages of general paralysis in proportion to the impairment of motor power. The investigation of the accommodation reflex on account of its frequent and early alterations may be helpful in the diagnosis of doubtful cases, but it affords no indication as to the slow or rapid evolution of the disease. H. J. Macevoy.

scholarly journals Effect of Earthworm on Lettuce Production through the Recycling of Organic and Bio-Compost Production

2019 ◽  
pp. 1-10
Author(s):  
Sara Jasim Mohammed ◽  
Jamal Salih Alkobaisy ◽  
Jasim Mohammed Saleh
Keyword(s):  
Farming System ◽  
Chemical Fertilizer ◽  
Leafy Vegetables ◽  
Fertilizer N ◽  
Lettuce Plant ◽  
Third Place ◽  
Second Stage ◽  
The Third ◽  
The World ◽  
Two Stages

Lettuce is one of the most abundant leafy vegetables and is consumed in its raw form by humans, all over the world. This study is conducted in one of the fields in the district of Al-Garmah City, Iraq, to investigate the effects of several fertilizers (Animal, Chemical, and Compost fertilizer). The crop of lettuce harvested from Aug 2017 to Mar 2018, was used in this study. The experiment is carried out in two stages. The first stage includes the multiplication of the earthworm and the production of the worm (vermicompost). The second stage includes the cultivation of lettuce in three replicates with ten coefficients and additions of animal fertilizer, vermicompost and chemical fertilizer (N, P, and K). The results show that the highest productivity is shown in the lettuce plant in vermicompost second with level recommendation half of the fertilizing, and second-ranked vermicompost and chemical. Only the second level and the third place in the recommendation vermicompost 1/2 second with level waste sheep 1/2 second level. The result showed the percentages of the treatment (T5), (T8), (T3), (T9), (T7), (T2), (T1). It is concluded that the production of vermicomposts in a specialized farm which is environmentally-friendly and hygienic, results in more healthy crops for the consumer, which should be given into consideration. More research in this area is needed to fully understand the ecology of different earthworm species, their interactions and their potential roles in promoting the more sustainable farming system.

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