61,180 research outputs found
Earth Resistivity Tomography (ERT) investigation of Machaerus Fortress
No full textNew campaigns to survey the structures and materials, explorative studies and specialist localized surveys permit constant up-dates to knowledge of the fortress and the village in a broader cognitive framework concerning both historical aspects and this directly tied to the material consistency of the architectural remains. The aforementioned initiative also offers new occasion for assessing the future potential of the research and the risk levels for the structures. The results of Machaerus may constitute a useful cognitive element for comparison with other sites/monuments in Jordan and offer occasions for reflection about the current management policy of the historical and artistic patrimony.
In this work we present and discuss the results obtained following the application of the Electrical Resistivity Tomography (ERT) in the subsurface investigation of a portion of the Qala’at al Mishaqa
Proceedings of the Australia-Middle East Conference on Business and Social Sciences (in partnership with The Journal of Developing Areas, Tennessee State University, USA and ALHOSN University, United Arab Emirates)
No full textAbu N M Wahid, Carmen Reaiche Amaro, Wahid Mura
Structurally Integrated Slotless PM Brushless Motor with Spiral Wound Laminations for Marine Thrusters
No full textRim driven thrusters with structurally integrated brushless PM motors are now an established technology with an increasing range of applications. In these thrusters, the stator of the motor is housed within the thruster duct, and the rotor forms a ring around the tips of the propeller. Such high pole number motors tend to be very thin radialy, have very small length to diameter ratios, and have relatively large airgaps to accommodate corrosion protection layers on the surfaces of the rotor and stator. The relatively large diameter stator laminations of such machines tend therefore to have very thin back of core and narrow teeth, which make them expensive and difficult to manufacture. This paper proposes an alternative potentially lower cost motor topology featuring a slotless stator whose laminations are manufactured from a single strip of steel that is edge wound into a spiral (like a “slinky” and then fitted over the windings that are preformed on the outside surface of a non-conducting former. The former is also part of the sealed housing that protects the stator from corrosion in seawater. The paper discusses the design optimisation of such a motor using analytical and finite element analysis (FEA), describes a demonstrator motor and reports experimental and FEA results
The theatre of cruelty: dehumanization, objectification & Abu Ghraib
No full textA clumsy pyramid of kneeling men, naked apart from the hoods over their heads, with a smiling, fair-headed woman and a grinning man with a moustache, wearing green cleaning gloves; a slight woman with a blank expression and a man on the floor, on a limp leash; a hooded, robed figure, standing on a box with his arms outstretched and a pose similar to the crucifixion, with sinister wires behind him, and otherwise blank surroundings. A row of more hooded, naked men, forced to do sexual acts as a female prison guard (Lynndie England), tanned and wearing various shades of khaki, grins and does a thumbs up sign, pointing at him, her cigarette tilted and her expression not altogether different from Bonnie in Bonnie and Clyde. A man in uniform and a black beanie hat, sitting on an Iraqi prisoner. Another pyramid of naked detainees, with a man and women behind them, smiling arm in arm, as if they are standing by a caught wild boar or large fish, or a well-organised barbeque. The moustached man (Charles Graner), again smiling and giving a thumbs up sign, this time over a corpse, whose bloody eyes have been bandaged. A naked prisoner covering his ears, as several dogs bark at him, and soldiers watch on. Another prisoner chained to a bed-frame, with some underpants covering his face. These infamous scenes, shown in the Abu Ghraib photographs, shocked many people, and the perpetrators of the torture depicted were condemned by the relevant authorities. They transformed from clandestine mementos of hidden violence to records of an international scandal and evidence of serious crime. Their meaning changed depending on who saw them, how they were interpreted, what reactions they provoked, and the rulings of the courts regarding the people involved. They went from being private victory shots, to an international public relations disaster, to evidence of breaking of the Geneva Convention.Publisher PD
Roman Census: Enumerating and Counting Roman Dominating Functions on Graph Classes
No full textThe concept of Roman domination has recently been studied concerning enumerating and counting in F. N. Abu-Khzam et al. (WG 2022). More technically speaking, a function that assigns 0,1,2 to the vertices of an undirected graph is called a Roman dominating function if each vertex assigned zero has a neighbor assigned two. Such a function is called minimal if decreasing any assignment to any vertex would yield a function that is no longer a Roman dominating function. It has been shown that minimal Roman dominating functions can be enumerated with polynomial delay, i.e., between any two outputs of a solution, no more than polynomial time will elapse. This contrasts what is known about minimal dominating sets, where the question whether or not these can be enumerated with polynomial delay is open for more than 40 years. This makes the concept of Roman domination rather special and interesting among the many variants of domination problems studied in the literature, as it has been shown for several of these variants that the question of enumerating minimal solutions is tightly linked to that of enumerating minimal dominating sets, see M. Kanté et al. in SIAM J. Disc. Math., 2014. The running time of the mentioned enumeration algorithm for minimal Roman dominating functions (Abu-Khzam et al., WG 2022) could be estimated as (1.9332ⁿ) on general graphs of order n. Here, we focus on special graph classes, as has been also done for enumerating minimal dominating sets before. More specifically, for chordal graphs, we present an enumeration algorithm running in time (1.8940ⁿ). It is unknown if this gives a tight bound on the maximum number of minimal Roman dominating functions in chordal graphs. For interval graphs, we can lower this time bound further to (1.7321ⁿ), which also matches the known lower bound concerning the maximum number of minimal Roman dominating functions. We can also provide a matching lower and upper bound for forests, which is (incidentally) the same, namely ^*(√3ⁿ). Furthermore, we present an optimal enumeration algorithm running in time ^*(∛3ⁿ) for split graphs and for cobipartite graphs, i.e., we can also give a matching lower bound example for these graph classes. Hence, our enumeration algorithms for interval graphs, forests, split graphs and cobipartite graphs are all optimal. The importance of our results stems from the fact that, for other types of domination problems, optimal enumeration algorithms are not always found.
Interestingly, we use a different form of analysis for the running times of our different algorithms, and the branchings had to be tailored and tweaked to obtain the intended optimality results. Our Roman dominating functions enumeration algorithm for trees and forests is distinctively different from the one for minimal dominating sets by Rote (SODA 2019).Our approach also allows to give concrete formulas for counting minimal Roman dominating functions on more concrete graph families like paths
Penggunaan Abu Tandan, Rhizobia dan Jamur Pelarut P untuk Meningkatkan Pertumbuhan dan Produksi Tanaman Jagung dan Kedelai yang Ditanam dengan Sistem Tumpang Gilir (Relay Cropping) di Tanah Ultisol Tambunan-A
No full textTanah-tanah di Indonesia pada umunnya bereaksi m:rsam yang disebabkan
tingginya curah hujan mengakibatkan pencucian basa-basa. Di samping itu kandungan
unsur t"prn seprti Al# dan Fe$ tingi yang mengikat fosfat ke dalam bentuk Al-P dan
Fe-P sehingga fosfat tidak tersedia bagi tanaman. Di lain pihak akibat kernasaman tanah
sehingga kandungan unsur hara menjadi rendatr seeerti hara N, P dan K.
Kebanyakan petani hingga kini masih m€ngusahakan lahan pertaniannya dengan
p€nafturum secara monokultur. Akibat ketidak pastian harga, petani seringkali terpaksa
harus menjual hasil pertaniannya dengan harga rendalr- Unhrk itu maka saya ingin
membantu petani mengatasi masalah yang sering terjadi ini. Salah satunya adalah dengan
menerapkan sistern penanaman secara tumpang gilir. Sehingga diharapkan dalam satu
musim tanam dapat diperoleh dua komoditi. Dengan demikian apabila harga salatr satu
komoditi jatuh, maka petani masih dapat berharap pada komodiri yang kedua.
Tujuan penelitian ini adalah (1) Unn* mengetahui pe,nganrh abu tandan kelapa
sawit terhadap serapan hara dan produksi tanaman kedelai dan jagung yang ditanam
dengan sistem trmrpang gilir. (2) Unn* mengetahui pengaruh rtrizobia terhadap serapan
hara dan prodr*si tanaman kedelai dan jagung yang diunam deirgan sistsrn tumpang gilir.
(3) Untuk mengetahui penganft janur pelarut P terhadap s€rapan hara dan produksi
tanaman kedelai dan jagpng yang ditanam secara tumpang gilir. (a) Untuk mengetahui
interaksi pengaruh abu tandan kelapa sawit, rfiizobia dan jamur pelarut P terhadap serapan
hara dan produksi tanaman kedelai dan jagung ymg ditanam s€cara tumpang gilir. Penelitian ini dilaksanakan di Kebun Percobaan Tambunan-A Universitas Sumatera
Utara Kecamatan Sei SelapiarL Kabupaten f:nglrat, Sumatera Utara. Adapm
di mnlai pada bulan April hingga September 1997.
Penelitian ini menggunakan Rancangan Acak Kelompok @AK) Faktorial dengan 3
faktor prlakuan masing-masing 2 t{af dengan 3 ulangan sehingga keseluruhan penelitian
menggunakan (2 x2 x 2) x 3 : 24 petak penelitian. Faktor perlaktwmya adalatr sebagai
berikut:
(1) Faktor abu tandan kelapa sawiq Erdiri atas 2 tardyaitu: tanpa pemberian abu tandan '
dan dengan pemberian abu tandan (0,1 ton/ha)
(2) Fakto,r inokuftmr baktsri bintil akar, terdiri atas 2 taraf yaitrr: tanpa pemberian inokulum
Bradyrhiz&ium Jqoniatm dan dengrur pnrberian inokulum Bradyrhizabium
Japonicum (srainDPS-I1)
(3) Faldor janrur pelarut P, terdiri atas2 taraf yaiUr: tanpa penrberian jamur pelanrt P dan
demgan pemberian jamur pelarut P (inokulum JP)
[Iasil penelitian menrurjukkan ba]rwa pemberian abu tandan kelapa sawit
meningkatkan bfiat kerhg taj* dan akar tanamaU jumlah bintil akar, berat kering bintil
akar, serapan N, P, K produ}si dan bobot 100 biji tanaman kedelai yang ditanam secara
finnpang glir. Pada tanaman jagrurg juga menunjukkan peningkaUn terhadap berat kering
tajuk dan akar tanamarU serapan N, P, K prodr*si dan bobot 100 biji tanaman yang
dr'tanam s@ara fimpang glir yang secara statistik peningkatan teisebut nyata.
Ino*ulasi fiizobia m€rdngkatkan berat kering tajuk dan akar tanaman, jumlah bintil
akar, berat korirg bintil akaa serapan N K prodtrksi dan bobot 100 biji tanaman kedelai
yang ditanam secara tumpang gilir. Namun tidak dernikian halnya de,lrgan tanaman iagung;
inolarlasi rrnmH^tidak mening[<atkan semua variabel yang diamati.
Inokulasi jamur pelarut fosfat menirgka*an berat kering tajuk dan akar tanaman
dan serapan P tanaman kedelai yang ditanam secara firmpang glir yang secara statistik
nyata. Pada tanaman jagung; inokulasi jarnur planrt fosfat semua variabel yang diamati
yang secara statistik nyat4 kecuali pada bobot 100 biji peningkatannya tidak nyata. Interaksi abu tandan kelapa sawit dengan rhizobia meningkatkan secara nyata berat
kenng tajuk tanaman darr serapan N tanaman kedelai yang ditanam secara tumpang gilir.
Namun pada tanaman jagung" interaksi abu.ianjang kelapa sawit dengan rhizobia tidak
meningkatkan sernua variabel yang diamati.
Interaksi abu tandan kelapa sawit dengan jamur pelarut fosfat meningkatlian secara
nyata serapan N tanaman kedelai yang ditanam secara turnpang gilir. Pada tanaman jagung
interaksi abu janjang kelapa sawit dengan jamr.u' pelarut fosfat meningkatkan secara nyata
berat kering tajuk tanamarL serapan N dan P tanaman yang ditanam socara tumpang gilir.
Interaksi rhizobra dengan jamur plarut fosfat dan interaksi abu tandan kelapa
sawig rhizobia dan jamur pelarut fosfat meningkatkan berat kering tajuk dan akar tanaman,
jurnkh bintil akaa berat kering bintil akar, serapan N, P, K produksi dan bobot 100 blii
tanaman kedelai yang ditaoarn secara tumpang gilir, namun secara statistik tidak nyata.
Pada tanaman jatmg juga tidak menrurjufrkan peningl@tan terhadap variabel yangdiamati.
Bila dibaodingkan dengan plot monokulhu, maka penanaman kedelai secara
monokulhr mernberikan produksi yang leb,ih tinggi dari pada perumanum secara tumpang
gilir yaitu: 28.73o/o. Penanaman jagung socaf,a monokultur memberi produksi yang sedikit
lebih rendah daripada perumaman dengan sistem trmrpang gilir yaitu: 6.510/o.
Produksi total kedelai + jagung/5O m'z hnaman secara monokultur lebih tinggi bila
dibandingkan dengan produksi tumpang gilir, rurmun waktu yang dipedukan untuk
menghasilkan produksi lebih lama.
Berdasarkan hasil penelitian ini maka saya merasa perlu menyarankan agar
dilakukannya penelitian lebih lanjut mengenai penamman kedelai dan jagung yang ditarnm
secara tumpang gilir dengan jarak tanam jagung yang lebih lebar untuk memberi ruang
yang lebih luas bagi kedelai memperoleh sinar matahari hingp akhir masa panennya.
Sehingga pada alitrirnya dapat diketahui jarak antaar tanam yang paling tepat unhrk sistem
penanaman tumpang gilir antara tanaman kedelai dan jagung135 HalamanTesis Magiste
Al-Sharif Al-Radi: His Life and Poetry
No full textThe aim of this work is to study al-Sharif al-Radl, his life and poetry. The first part deals with the poet’s environment and life; the second with his poetry. Chapter I deals with the political conditions under which the poet lived. The purpose of the second chapter is to portray Al-Radl's social environment and its reflection in contemporary poetry. The third chapter describes the literary environment of Al-Radl's age at some length. The fourth chapter aims to study Al-Radl's life in detail. The factors which influenced his outlook and personality are discussed. An attempt is made to discern how far these factors affected his poetry. The second part of this work deals with Al-Radl's poetry itself. In Chapter V historical observations are made on Al-Radl's Diwan o in both manuscript and published forms. Chapter VI deals with his panegyrics. General remarks are made on eulogy in Arabic poetry. The content, form and development of Al-Radl's panegyrical odes are analysed. His Ikhwaniyyat receive special attention. Chapter VII deals with Al-Radl's self-praise its content and form. An endeavour is made to explore the Utopian world which the poet tried to portray, Al-Radl's elegies (Ch. VIII). their content, form and characteristics are reviewed. In addition, his dirges on women receive attention. Shi ism in Al-Radl’s poetry is discussed in Chapter IX, Al-Radl’s love-poetry (Ch. X) is discussed. His Hijaziyyat receive particular attention. It is claimed that Al-Radl’s produced in his Hijaaiyyat a poetical amalgam which contains some aspects of ‘Udhrite and ’Umarite poetry. Chapter II deals with Al-Radl's poetical technique. His theories of poetical composition and his comments on other poets are examined. A comparison is made between Al-Radl and other poets both previous and contemporary. Special attention is paid to al-Mutanabbi's influence. In Chapter XII there is a broad re-assessment of Al-Radl’s place in the history of Arabic poetry
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