Development and testing of dry chemicals in advanced extinguishing systems for jet engine nacelle fires

The effectiveness of dry chemical in extinguishing and delaying reignition of fires resulting from hydrocarbon fuel leaking onto heated surfaces such as can occur in jet engine nacelles is studied. The commercial fire extinguishant dry chemical tried are sodium and potassium bicarbonate, carbonate, chloride, carbamate (Monnex), metal halogen, and metal hydroxycarbonate compounds. Synthetic and preparative procedures for new materials developed, a new concept of fire control by dry chemical agents, descriptions of experiment assemblages to test dry chemical fire extinguishant efficiencies in controlling fuel fires initiated by hot surfaces, comparative testing data for more than 25 chemical systems in a 'static' assemblage with no air flow across the heated surface, and similar comparative data for more than ten compounds in a dynamic system with air flows up to 350 ft/sec are presented

Branching processes, the max-plus algebra and network calculus

Branching processes can describe the dynamics of various queueing systems, peer-to-peer systems, delay tolerant networks, etc. In this paper we study the basic stochastic recursion of multitype branching processes, but in two non-standard contexts. First, we consider this recursion in the max-plus algebra where branching corresponds to finding the maximal offspring of the current generation. Secondly, we consider network-calculus-type deterministic bounds as introduced by Cruz, which we extend to handle branching-type processes. The paper provides both qualitative and quantitative results and introduces various applications of (max-plus) branching processes in queueing theory

Cross-Hedging Fishmeal: Exploring Corn and Soybean Meal Futures Contracts

During 2006 the fishmeal price nearly doubled from $500MT to over$900MT. The objective of this research is to determine the optimal cross-hedge ratio between fishmeal and soybean meal and corn, and corresponding hedging weight between corn and soybean. Results indicate all hedging weight should be placed on the corn futures contract. This is an interesting result since prior fishmeal cross-hedging research has not analyzed the corn futures contract as a risk management mechanism.Crop Production/Industries, Risk and Uncertainty,

Agreement between methods of measurement with multiple observations per individual

Limits of agreement provide a straightforward and intuitive approach to agreement between different methods for measuring the same quantity. When pairs of observations using the two methods are independent, i.e., on different subjects, the calculations are very simple and straightforward. Some authors collect repeated data, either as repeated pairs of measurements on the same subject, whose true value of the measured quantity may be changing, or more than one measurement by one or both methods of an unchanging underlying quantity. In this paper we describe methods for analysing such clustered observations, both when the underlying quantity is assumed to be changing and when it is not

Native title and Indigenous Australian utilisation of wildlife: Policy perspectives

The Native Title Act 1993 specifically recognises Indigenous property rights in Indigenous species; if there is one legislative event that could alter Indigenous utilisation of wildlife in the future it is provisions in this statute. This legal framework means that Indigenous people may in the future hold property or resource rights not just over currently vacant Crown land, but also in national parks or pastoral leasehold land. Some threshold legal issues, currently before the Federal Court, will clarify the significance of native title for Indigenous utilisation of wildlife. In this paper the use of wildlife by Indigenous Australians is assessed from an economic perspective using a standard production function framework in which output is determined by the variable combination of three input factors - land, labour and capital. The assessment shows that wildlife use for subsistence purposes is clearly of economic importance. Although inequalities exist in relation to the allocation of land between States, under the Native Title Act 1993 and the operations of the Indigenous Land Corporation it is possible there will be a significant increase in the amount of land owned or available for use by Indigenous people. This may not only increase access to wildlife resources and provide opportunities for Indigenous people to add to their incomes, but also add to the growing recognition of their ability and right to participate in environmental management. However, Indigenous people will need continuing access to cash to underwrite a subsistence lifestyle. Informed debate is needed to decide whether Indigenous use of wildlife is an economic option worth supporting and what benefits and costs might accrue from such facilitation both for Indigenous people and the wider Australian community

Reply Brief for Petitioners, Gonzalez v. Google, 143 S.Ct. 1191 (2023) (No. 21-1333)

QUESTION PRESENTED: Section 203(c)(1) of the Communications Decency Act immunizes an “interactive computer service” (such as YouTube, Google, Facebook and Twitter) for “publish[ ing] ... information provided by another” “information content provider” (such as someone who posts a video on YouTube or a statement on Facebook). This is the most recent of three court of appeals’ decisions regarding whether section 230(c)(1) immunizes an interactive computer service when it makes targeted recommendations of information provided by such another party. Five courts of appeals judges have concluded that section 230(c)(1) creates such immunity. Three court of appeals judges have rejected such immunity. One appellate judge has concluded only that circuit precedent precludes liability for such recommendations. The question presented is: Does section 230(c)(1) immunize interactive computer services when they make targeted recommendations of information provided by another information content provider, or only limit the liability of interactive computer services when they engage in traditional editorial functions (such as deciding whether to display or withdraw) with regard to such information

Brief for Petitioners, Gonzalez v. Google, 143 S.Ct. 1191 (2023) (No. 21-1333)

QUESTION PRESENTED: Section 203(c)(1) of the Communications Decency Act immunizes an “interactive computer service” (such as YouTube, Google, Facebook and Twitter) for “publish[ ing] ... information provided by another” “information content provider” (such as someone who posts a video on YouTube or a statement on Facebook). This is the most recent of three court of appeals’ decisions regarding whether section 230(c)(1) immunizes an interactive computer service when it makes targeted recommendations of information provided by such another party. Five courts of appeals judges have concluded that section 230(c)(1) creates such immunity. Three court of appeals judges have rejected such immunity. One appellate judge has concluded only that circuit precedent precludes liability for such recommendations. The question presented is: Does section 230(c)(1) immunize interactive computer services when they make targeted recommendations of information provided by another information content provider, or only limit the liability of interactive computer services when they engage in traditional editorial functions (such as deciding whether to display or withdraw) with regard to such information