Method of producing high T(subc) superconducting NBN films

Thin films of niobium nitride with high superconducting temperature (T sub c) of 15.7 K are deposited on substrates held at room temperature (approx 90 C) by heat sink throughout the sputtering process. Films deposited at P sub Ar 12.9 + or - 0.2 mTorr exhibit higher T sub c with increasing P sub N2,I with the highest T sub c achieved at P sub n2,I= 3.7 + or - 0.2 mTorr and total sputtering pressure P sub tot = 16.6 + or - 0.4. Further increase of N2 injection starts decreasing T sub c

The Deuteron Spin Structure Functions in the Bethe-Salpeter Approach and the Extraction of the Neutron Structure Function g1n(x)g_1^n(x)

The nuclear effects in the spin-dependent structure functions $g_1^D$ and $b_2^D$ are calculated in the relativistic approach based on the Bethe-Salpeter equation with a realistic meson-exchange potential. The results of calculations are compared with the non-relativistic calculations. The problem of extraction of the neutron spin structure function, $g_1^n$, from the deuteron data is discussed.Comment: (Talk given at the SPIN'94 International Symposium, September 15-22, 1994, Bloomington, Indiana), 6 pages, 5 figures, Preprint Alberta Thy 29-9

Building stock dynamics and its impacts on materials and energy demand in China

China hosts a large amount of building stocks, which is nearly 50 billion square meters. Moreover, annual new construction is growing fast, representing half of the world's total. The trend is expected to continue through the year 2050. Impressive demand for new residential and commercial construction, relative shorter average building lifetime, and higher material intensities have driven massive domestic production of energy intensive building materials such as cement and steel. This paper developed a bottom-up building stock turnover model to project the growths, retrofits and retirements of China's residential and commercial building floor space from 2010 to 2050. It also applied typical material intensities and energy intensities to estimate building materials demand and energy consumed to produce these building materials. By conducting scenario analyses of building lifetime, it identified significant potentials of building materials and energy demand conservation. This study underscored the importance of addressing building material efficiency, improving building lifetime and quality, and promoting compact urban development to reduce energy and environment consequences in China

Varietal problem with special reference to its physiological and biochemical aspects

This article does not have an abstract

Executive Information System Penjualan Bahan Kimia

Kebutuhan informasi sekarang ini menjadi kebutuhan mutlak bagi suatu organisasi atau Perusahaan untuk memenangkan sebuah persaingan. Dimana informasi digunakan sebagai penunjang pembuat keputusan, sehingga dibutuhkan penyampaian informasi yang akurat dan cepat dalam mendapatkannya agar tidak kalah dari pesaingnya. Informasi tersebut berisi kondisi yang terjadi di dalam maupun di luar Perusahaan yang selanjutnya akan digunakan sebagai dasar untuk perencanaan strategis dan program kerja. Seiring dengan berkembangnya kebutuhan informasi khususnya untuk para executive guna pengambilan keputusan dan untuk mengetahui kondisi kinerja Perusahaan, maka berkembanglah sebuah sistem informasi yang disebut Executive Information System (EIS). Dengan EIS informasi dapat ditampilkan dalam bentuk secara ringkas dan menampilkan data sesuai dengan kebutuhan sehingga mempermudah seorang eksekutif dalam pengontrolan setiap saat. Proses penjualan yang berjalan saat ini masih menggunakan sistem yang manual yaitu masih menggunakan proses pencatatan data sehingga membutuhkan waktu yang lama untuk pembuatan laporan dan laporan yang dihasilkan datanya belum tentu akurat. Dengan permasalahan diatas maka dibutuhkan suatu sistem yang dapat membantu pekerjaan pegawai sehingga laporan yang dihasilkan bisa tepat pada waktunya dan data yang dihasilkan lebih akurat

Electronic structure and chemical bonding of 3d-metal dimers ScX, X=Sc-Zn

The electronic and geometrical structures of the ground and excited states of the homonuclear Sc2, mixed ScTi, ScV, ScCr, ScMn, ScFe, ScCo, ScNi, ScCu, and ScZn 3d-metal dimers and their anions have been calculated using the density functional theory with generalized gradient approximation for the exchange-correlation potential. The ground states of the neutral dimers are found to be 5Σ−u (Sc2), 6Σ+ (ScTi), 7Σ+ (ScV), 4Σ+ (ScCr), 3Σ+ (ScMn), 2Δ(ScFe), 1Σ+ (ScCo), 2Σ+ (ScNi), 3Δ(ScCu), and 4Σ+ (ScZn). A natural bond analysis reveals an antiferrimagnetic spin coupling in the ground states of ScCr, ScMn, and ScFe. This is due to the electron transfer from Sc to the opposite atom and specific bond formations. While each dimer has a unique chemical bonding pattern, most curious is the localization of two 4s electrons at both atomic sites in the ground 5Σ−u state of Sc2, which leads to formation of two lone pairs and the bonding scheme: (3d+3d)3α(4s+4s)1β. No appreciable sd hybridization is found for the ground states of the ScX dimers except for ScNi. Even though the electron affinities of the ScX dimers are relatively low and do not exceed 1 eV, each ScX− (except ScCo−) possesses at least two states stable towards detachment of an extra electron

Studies in the anatomy of sugarcane stalk. III. Fission and pseudo-fission

This article does not have an abstract

Studies in the anatomy of sugarcane stalk. Part II. Milling characteristics of varieties

This article does not have an abstract