نتایج جستجو برای: 75 kgha sulfur

تعداد نتایج: 173835  

Journal: :Monthly Notices of the Royal Astronomical Society 1863

2005
DAVID T. JOHNSTON JAMES FARQUHAR BOSWELL A. WING ALAN J. KAUFMAN DONALD E. CANFIELD

Multiple sulfur isotope measurements of sulfur compounds associated with dissimilatory sulfate reduction, elemental sulfur disproportionation and sulfite disproportionation indicate that different types of metabolic processes impart different multiple isotope signatures. An established network for sulfate reduction was used previously to explain the multiple isotope variability. Here, we revisi...

Journal: :تحقیقات آب و خاک ایران 0
حسین بشارتی سیداحمد سادات نوری امیربردیا نیکنیایی حمید ایران نژاد علی اکبری علیرضا فلاح نصرت آبادی

application of sulfur as a means of lowering soil ph (even if at micro sites) is one way to increase the availability of insoluble nutrients/ effectiveness of elemental sulfur in lowering soil ph depends on the activity of sulfur oxidizing bacteria especially, thiobacillus genus/ to evaluate the possibility of partially substituting sulfur along thiobacillus inoculum for phosphorus and micronut...

Journal: :Molecules 2011
Ji-Yan Shi Hui-Rong Lin Xiao-Feng Yuan Xin-Cai Chen Chao-Feng Shen Ying-Xu Chen

The role of sulfur on the availability of Cu and the bacterial community in rice rhizospheres was investigated by pot experiments. With sulfur addition, pH in rhizosphere soil decreased and Mg(NO₃)₂ extractable Cu increased significantly. The bacterial community composition also changed with sulfur addition. Some specific clones having high similarity to Thiobacillus, which indicated that sulfu...

Journal: :Journal of Marine Science and Engineering 2023

Numerical analysis and experimental studies were conducted to evaluate the performance of a selective catalytic reduction (SCR) system according load 1.5-ton marine boiler. There are post-treatment methods for reducing exhaust gas emitted from ships, such as low-sulfur oil, scrubber, desulfurization device remove sulfur oxides (SOx) particulate matter, an recirculation system, SCR agents reduce...

Journal: :Archives of Iranian medicine 2011
Mostafa Ghanei Mohsen Sheyacy Mohammad Amin Abbasi Alireza Ani Jafar Aslani

OBJECTIVE The purpose of this study was to examine whether the degree of air trapping in high resolution computed tomography (HRCT) of patients with histories of sulfur mustard gas exposure during suspended full expiration correlated with various parameters of the cardiopulmonary exercise test as the gold standard for assessment of pulmonary function. METHODS In this analytic study 75 male pa...

2012
M. A. Mahmoud

Elemental sulfur (S8) is often present in considerable amounts in sour gas reservoirs at the reservoir conditions (pressure and temperature). For the isothermal conditions in the reservoir, the reduction in reservoir pressure below a critical value will cause the elemental sulfur to deposit in the formation. Sulfur deposition can cause severe loss in the pore space available for gas, and in tur...

2015
Ying He Xiaoyuan Feng Jing Fang Yu Zhang Xiang Xiao

The hydrothermal vent system is a typical chemosynthetic ecosystem in which microorganisms play essential roles in the geobiochemical cycling. Although it has been well-recognized that the inorganic sulfur compounds are abundant and actively converted through chemosynthetic pathways, the sulfur budget in a hydrothermal vent is poorly characterized due to the complexity of microbial sulfur cycli...

2016
Anika C Juhl Artur Schneider Boris Ufer Torsten Brezesinski Jürgen Janek Michael Fröba

Hollow carbon spheres (HCS) with a nanoporous shell are promising for the use in lithium-sulfur batteries because of the large internal void offering space for sulfur and polysulfide storage and confinement. However, there is an ongoing discussion whether the cavity is accessible for sulfur. Yet no valid proof of cavity filling has been presented, mostly due to application of unsuitable high-va...

2006
Vinai K. Rai Mark H. Thiemens

Introduction: Sulfur is a cosmochemically important element with four stable isotopes. It is the only element besides oxygen where a mass independent fractionation (MIF) has been observed both in nature [1-4] and the laboratory [4,5]. Unlike oxygen, where more than one process can produce MIF, sulfur MIF is exclusively of photochemical origin. Recently we have demonstrated a mass independent su...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید