800 research outputs found
Multiphoton Dissociation of HeH+ below the He+(1s) + H(1s) Threshold
We discuss the strong-field dynamics of HeH+, the simplest stable
heteronuclear molecule, focusing on identifying a laser regime for which there
is a sufficient dissociation signal for experimental measurement. We
numerically solve the time-dependent Schr\"odinger equation to obtain total
dissociation probabilities, kinetic energy release spectra, and momentum
distributions for wavelengths from 800 nm to 2400 nm. The suitability of this
simple system as a prototype for understanding the strong-field nuclear
dynamics of heteronuclear dissociation is discussed
Enhancing the intense field control of molecular fragmentation
We describe a pump-probe scheme with which the spatial asymmetry of
dissociating molecular fragments --- as controlled by the carrier-envelope
phase of an intense few-cycle laser pulse --- can be enhanced by an order of
magnitude or more. We illustrate the scheme using extensive, full-dimensional
calculations for dissociation of H and include the averaging necessary
for comparison with experiment.Comment: 5 pages, 4 figue
Stabilization of carbon nanotubes by filling with inner tubes: An optical spectroscopy study on double-walled carbon nanotubes under hydrostatic pressure
The stabilization of carbon nanotubes via the filling with inner tubes is
demonstrated by probing the optical transitions in double-walled carbon
nanotube bundles under hydrostatic pressure with optical spectroscopy.
Double-walled carbon nanotube films were prepared from fullerene peapods and
characterized by HRTEM and optical spectroscopy. In comparison to single-walled
carbon nanotubes, the pressure-induced redshifts of the optical transitions in
the outer tubes are significantly smaller below 10 GPa, demonstrating the
enhanced mechanical stability due to the inner tube already at low pressures.
Anomalies at the critical pressure P12 GPa signal the onset of the
pressure-induced deformation of the tubular cross-sections. The value of P
is in very good agreement with theoretical predictions of the pressure-induced
structural transitions in double-walled carbon nanotube bundles with similar
average diameters.Comment: 6 pages, 4 figures; to appear in Phys. Rev.
Factors Affecting the Farmer’s Response to the Development of Soybean Farming in East Java Indonesia
The research was conducted to find out (1) factors influencing farmer\u27s decision to cultivate soybean, and (2)the opportunity level of farmer response to soybean farming in Jember and Sampang. Research location was determined through purposive method and sampling conducted through simple random sampling method. Data analysis method used was logit regression model where the dependent variable (Y) was dummy variable with value of 1 (response) and 0 (non-response). Research result found G value of 130.198 (p-value = 0.0001) indicating that logistic regression model, as a whole, could explain farmers\u27 decision in their response to soybean farming. Factors influencing farmers\u27 response to soybean farming were acreage, education, income, and area status
Penegakan Hukum Pidana di Bidang Illegal Logging Bagi Kelestarian Lingkungan Hidup dan Upaya Penanggulangannya
Criminal Law Enforcement in the Field of Illegal Logging for environmental sustainability has not been completed properly, In fact the government was impressed as if keen to eradicate illegal logging, while the court would release him diligently. development of environmental law in Indonesia. Constraints, the Indonesian legal system is still associated with the pattern of claims with losses that are real. Future losses can not be applied in real terms, therefore losses are not yet occurred, is still a problems of law in Indonesia. Illegal logging is highly impact on the state of ecosystems in Indonesia. Logging provides a very adverse impact surrounding communities, and even the world community. Losses caused by forest destruction is not only the economic value of damage, loss of lung Indonesia and the world, global warming, will be followed by climate change such as increased rainfall in some parts of the world, catastrophic floods and landslides, but instead in another hemisphere experiencing a prolonged drought
On utilizing weak estimators to achieve the online classification of data streams
Author's accepted version (post-print).Available from 03/09/2021.acceptedVersio
GEDUNG PERTUNJUKAN DAN GALERI SENI SEMARANG
Kota Semarang adalah salah satu dari sepuluh kota terbesar di Indonesia yang juga ibukota provinsi jawa tengah,apabila dilihat dari jumlah penduduk kota semarang merupakan kota besar no 8, dengan jumlah penduduk 1.750.369 jiwa, hampir 303.839 diantaranya adalah kaum muda dengan rentang usia 15 –24 tahun, dengan jumlah penduduk kaum muda lebih dari 300 ribu jiwa kebutuhan akan hiburan,rekreasi dan interaksi sosial adalah hal yang penting di jaman kemajuan teknologi yang pesat,karena hal tersebut adalah hal – hal yang dibutuhkan untuk pengembangan diri mereka utamanya perkembangan jiwa sosial di dalam diri mereka, salah satu caranya adalah dengan mereka mengikuti berbagai kegiatan yang berbau seni terutama seni kontemporer.
Seni Kontemporer adalah perkembangan seni yang terpengaruh dampak modernisasi dan digunakan sebagai istilah umum sejak istilah Contemporary Art berkembang di Barat sebagai produk seni yang dibuat sejak Perang Dunia II. Istilah ini berkembang di Indonesia seiring makin beragamnya teknik dan medium yang digunakan untuk memproduksi suatu karya seni, juga karena telah terjadi suatu percampuran antara praktik dari disiplin yang berbeda, pilihan artistik, dan pilihan presentasi karya yang tidak terikat batas-batas ruang dan waktu. Pada perkembangannya, istilah kontemporer bukan hanya merujuk pada seni patung. Seni lukis yang menggunakan aliran-aliran baru juga menggunakan istilah tersebut sebagai perwujudan dari ide dan kebaruan yang diangkat. Sejalan dengan kemajuan zaman, seni rupa kontemporer juga memunculkan beragam varian seni baru. Di antara seni tersebut antara lain seni lingkungan, seni pertunjukan, seni fotografi, seni arsitektur, dan seni video. Keberagaman dalam penggunakan teknik dan medium inilah yang kemudian menjadi daya tarik bagi seniman untuk mendalami seni kontemporer, terutama dikalangan anak muda.
Namun perkembangan seni kontemporer di Kota Semarang secara kualitas dan kuantitas tidak didukung oleh sarana yang memadai. Sering kali produk dari seni konteporer berupa pertunjukkan diselenggarakan pada tempat yang fungsi utamanya bukan di peruntukkan untuk itu, seperti di selenggarakan di halaman gubernuran, stadion olah raga , ball room hotel dan masih banyak lagi. Saat ini menurutnya satu-satunya gedung yang representatif hanyalah Auditorium RRI pada kenyataannya gedung tersebut sering kali tidak digunakan karena masalah fasilitas yang kurang representative. Produk lain dari seni konteporer berupa pameran juga mengalami hal yang sama. Dan jika kita lihat lagi di Kota Semarang hanya terdapat satu galeri seni yang bergengsi, yakni Semarang Contemporary Art Gallery, itupun dengan kapasitas ruang yang kecil.
Oleh karena itu Gedung Pertunjukan dan Galeri Seni Semarang (GRAHASANI) sebagai badan seni swasta yang bertujuan untuk mewadahi kebutuhan seniman untuk berekpresi dengan fasilitas yang lebih memadai, sebagai ruang berkumpul antara pegiat seni maupun khalayak umum, menyebarkan kekayaan artistik dan intelektual, dan apresiasi serta pendokumentasian kesenian dan kreativitas
Ultracold Three-body Recombination in Two Dimensions
We study three-body recombination in two dimensions for systems interacting
via short-range two-body interactions in the regime of large scattering
lengths. Using the adiabatic hyperspherical representation, we derive
semi-analytical formulas for three-body recombination in both weakly and deeply
bound diatom states. Our results demonstrate the importance of long-range
corrections to the three-body potentials by showing how they alter the
low-energy and scattering length dependence of the recombination rate for both
bosonic and fermionic systems, which exhibit suppressed recombination if
compared to the three-dimensional case. We verify these results through
numerical calculations of recombination for systems with finite-range
interactions and supporting a few two-body bound states. We also study
finite-range effects for the energies of the universal three-identical-bosons
states and found a slow approach to universal predictions as a function of the
scattering length.Comment: 11 pages, 7 figure
THE ACCESS TO JUSTICE IN SYNERGIZING PAYMENT OBLIGATIONS OF SPECIAL MINING BUSINESS LICENSE HOLDERS WITH TAX COMPLIANCE IN INDONESIA
The obligations of the Special Mining Business License (IUPK) holders to the Government are only given without the active participation of the DGT and the central and local governments to test IUPK compliance as taxpayers. These obligations have the potential to ignore Article 33 and Article 23A of the 1945 Constitution. Based on the normative juridical study using the access to justice and the sustainable development approach, two conclusions are drawn. First, the enactment of several regulations shows that the IUPK's obligation to pay 4% to the Central Government and 6% to the Regional Government from net profits is only given, based on financial reports that have been audited by a public accountant. Second, Article 129 of the Minerba Law, Article 4 (1), Article 6 (1), and Article 9 (1) of the Income Tax Law, as well as Article 15 (3) of PP No. 37 of 2018 must be implemented through monitoring, evaluation, and regular audits of net profits before taxable income on the actual self-assessment reporting conducted by IUPK. It is proposed to make joint audit rules in testing compliance with good mining practice and IUPK obligations, as well as compliance of filling and actual payment of taxes owed
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