A manual-control approach to development of VTOL automatic landing technology.

Science.gov (United States)

Kelly, J. R.; Niessen, F. R.; Garren, J. F., Jr.

1973-01-01

The operation of VTOL aircraft in the city-center environment will require complex landing-approach trajectories that insure adequate clearance from other traffic and obstructions and provide the most direct routing for efficient operations. As part of a larger program to develop the necessary technology base, a flight investigation was undertaken to study the problems associated with manual and automatic control of steep, decelerating instrument approaches and landings. The study employed a three-cue flight director driven by control laws developed and refined during manual-control studies and subsequently applied to the automatic approach problem. The validity of this approach was demonstrated by performing the first automatic approach and landings to a predetermined spot ever accomplished with a helicopter. The manual-control studies resulted in the development of a constant-attitude deceleration profile and a low-noise navigation system.

Issues Associated with the Conveyance and Transfer of DOE Lands under Public Law 105-119

International Nuclear Information System (INIS)

Ladino, A.G.

1999-01-01

Public Law 105-119 (Law) was enacted in November 1997 as part of the Defense Authorization Act of 1998 (Act). The Law specifically requires the US Department of Energy (DOE) to identify lands that are suitable for conveyance or transfer at Los Alamos National Laboratory (LANL) within 90 days after enactment of the Act. In general, suitable lands include those parcels that are not required to meet the national security missions assigned to DOE at LANL within a ten year period beginning on the date of enactment of the Act. Additional suitability criteria are addressed below and include the need to establish clear title to the land and to restore areas contaminated with hazardous wastes. This proposed change in future land ownership is intended to serve as the final settlement of DOE community assistance obligations with respect to LANL and Los Alamos County and to stimulate economic development

The space between: land claims and the law in Indonesia

NARCIS (Netherlands)

Bakker, L.; Moniaga, S.

2010-01-01

In this article we look at rights discourses and law as an arena of struggle in which local people attempt to gain and secure access to localities of value. Following administrative decentralisation in 1999, throughout Indonesia, individuals and communities lodged land claims. To support these

10 CFR 63.121 - Requirements for ownership and control of interests in land.

Science.gov (United States)

2010-01-01

... under the jurisdiction and control of DOE, or lands permanently withdrawn and reserved for its use. (2... under the general mining laws; (ii) Easements for right-of-way; and (iii) All other rights arising under... repository operations area. DOE shall exercise any jurisdiction and control over surface and subsurface...

The Space Between: Land Claims and the Law in Indonesia

NARCIS (Netherlands)

Bakker, L.G.H.; Moniaga, S.

2010-01-01

In this article we look at rights discourses and law as an arena of struggle in which local people attempt to gain and secure access to localities of value Following administrative decentralisation in 1999, throughout Indonesia, individuals and communities lodged land claims To support these claims,

Mine and land ownership in operation planning procedures. On the framing of issues of conflicting civil rights under administrative law

International Nuclear Information System (INIS)

Schmidt-Assmann, E.; Schoch, F.

1994-01-01

On the framing of issues of conflicting civil rights under administrative law. The available arsenal of legal instruments for solving conflicts between proprietary titles to land surfaces and mines is more extensive and differentiated and, if properly deployed, more effective than one might at first expect. The control mechanisms become effective either immediately through laws or through administrative or private acts and are based on public or on private law. They range from the sphere of mining rights, operation planning law, the law on the prevention of damage to private persons over to the regulations under mining law on the payment of damages. The constitutionality of the mining regulations examined here is beyond dispute. They comply with the constitutional requirement to frame the issue concerned and afford protection while at the same time providing the required measure of openness and flexibility for conforming to the peculiarities of the mining business and permitting the necessary sensitivity of administrative control for managing this multipolar legal relationship. At the statutory level the regulatory purpose of the mining law in force is thus fulfilled. (orig./HSCH) [de

Reconfigurable multivariable control law for commercial airplane using a direct digital output feedback design

Science.gov (United States)

Ostroff, A. J.; Hueschen, R. M.

1984-01-01

The ability of a pilot to reconfigure the control surfaces on an airplane after a failure, allowing the airplane to recover to a safe condition for landing, becomes more difficult with increasing airplane complexity. Techniques are needed to stabilize and control the airplane immediately after a failure, allowing the pilot time to make longer range decisions. This paper shows a design of a discrete multivariable control law using four controls for the longitudinal channel of a B-737. Single control element failures are allowed in three of the four controls. The four controls design and failure cases are analyzed by means of a digital airplane simulation, with regard to tracking capability and ability to overcome severe windshear and turbulence during the aproach and landing phase of flight.

Trends in State and Federal land use law relating to inventories, monitoring and evaluation

Science.gov (United States)

Lamb, C. M.

1974-01-01

A description and analysis of selected State and Federal laws relating to land use inventories, monitoring, and evaluation is presented. Legal requirements and information systems for land use in the following states are reviewed: Colorado, Delaware, Florida, Hawaii, Indiana, Kansas, Maine, Mississippi, Missouri, Oklahoma, Pennsylvania, Tennessee, Utah, Vermont, and West Virginia.

OUTSIDER EDUCATION: INDIGENOUS LAW AND LAND-BASED LEARNING

Directory of Open Access Journals (Sweden)

John Borrows

2017-01-01

Full Text Available This article examines pedagogical developments in Canadian law schools related to outdoor education. In the process, it shows how recommendations from the Indian Residential Schools Truth and Reconciliation Commission can be applied, which called for law schools to create Indigenous-focused courses related to skills-based training in intercultural competency, conflict resolution, human rights and anti-racism. Land-based education on reserves can give law students meaningful context for exploring these Calls to Action. At the same time this article illustrates that taking students outside law school walls is not solely an Indigenous development. Thus, it first provides a few examples about how outdoors legal education is occurring in non-Indigenous settings. Next, the article examines unique Indigenous legal methodologies for learning law on and from the land. Finally, the author discusses his own experience in teaching Anishinaabe law on his reserve to demonstrate how students can develop deeper understandings of their professional responsibilities.   Dans cet article, l’auteur aborde les développements pédagogiques liés à l’enseignement de plein air dans les écoles de droit du Canada. Ainsi, il montre comment il est possible de donner suite aux recommandations de la Commission de vérité et de réconciliation relative aux pensionnats indiens, notamment en ce qui concerne la création par les écoles de droit de cours axés sur les compétences au regard de l’aptitude interculturelle, du règlement des différends, des droits de la personne et de la lutte contre le racisme. L’éducation axée sur le territoire qui est offerte sur les réserves peut donner aux étudiants en droit un contexte significatif qui les aidera à explorer ces appels à l’action. Au même moment, cet article montre que l’apprentissage du droit à l’extérieur des murs de l’école de droit n’est pas observé uniquement chez les Autochtones. Ainsi

Snowboard jumping, Newton’s second law and the force on landing

Science.gov (United States)

O'Shea, Michael J.

2004-07-01

An application of Newton’s second law to a snowboarder dropping off a vertical ledge shows that the average normal force during landing (force exerted by the ground on the snowboarder) is determined by four factors. It is shown that the flexing of the legs, the softness of the snow, the angle of the landing surface and the forward motion of the snowboarder can contribute significantly to reducing the force on landing. A judicious choice of the geometry of the jump leads to a force on landing that is equal to the force that the snowboarder would feel if they were standing at the landing point independent of the height from which the snowboarder jumps. Thus we are able to explain with a relatively simple model why a snowboarder may jump from rather high ledges and land comfortably. The physics here is also applicable to jumps in other sports including skiing and mountain biking. The importance of knowing the limits of models is discussed and some of the limits of this model are pointed out.

Finite-Time Spacecraft’s Soft Landing on Asteroids Using PD and Nonsingular Terminal Sliding Mode Control

Directory of Open Access Journals (Sweden)

Keping Liu

2015-01-01

Full Text Available This paper presents a continuous control law of probe, which consists of PD (proportional-derivative controller and nonsingular terminal sliding mode controller for probe descending and landing phases, respectively, in the case of the asteroid irregular shape and low gravity. The probe dynamic model is deduced in the landing site coordinate system firstly. Then the reference trajectory based on optimal polynomial in open-loop state is designed, with the suboptimal fuel consumption. Taking into account different characteristics of phases, PD controller and nonsingular terminal sliding mode controller can be employed in the descending phase and the landing phase, respectively, to track the designed reference trajectory. The controller which used the corresponding control methods can meet the motion characteristics and requirements of each stage. Finally simulation experiments are carried out to demonstrate the effectiveness of the proposed method, which can ensure the safe landing of probe and achieve continuous control.

Acquisition of the ownership of agricultural lands in Hungary, taking the EU's and other countries' law into consideration

Directory of Open Access Journals (Sweden)

Szilágyi János E.

2016-01-01

Full Text Available The present article concentrates on the acquisition of ownership (and in some respects: use of agricultural and forestry lands, especially as to the cross-border aspects. One of the hypotheses of the article is that the above mentioned issue is a topical question almost all around the world. Nevertheless, the article focuses on a European aspect of the cross-border acquisition, namely the new land law rules of the EU's Member States having joined the European Union in 2004 and 2007. In 2014 and 2015, the European Commission had assessed the land law of these Member States (i.e. Bulgaria, Hungary, Latvia, Lithuania, Slovakia and initiated infringement procedures against these countries at the Court of Justice of the European Union. Besides the regulation of these new Member States of the EU, the present article deals with the legislation of other Member States as well as the provisions of non-EU states. The article gives substantial consideration to phenomena such as sovereignty, land-hunger or soil degradation which may exercise significant influence on the land law of a state.

Potchefstroom Electronic Law Journal/Potchefstroomse Elektroniese ...

African Journals Online (AJOL)

The South African land control system has always, to some extent, been interfered with by government. Interventions in the course of the twentieth century in particular have resulted in an unequal, fragmented and diverse land control system. The law has been integral to this process. Since 1994, within a constitutional ...

Land Restitution through the Lens of Environmental Law: Some Comments on the South African Vista

Directory of Open Access Journals (Sweden)

A du Plessis

2006-05-01

Full Text Available Land reform in South Africa and the realisation of the section 25 property clause of the Constitution of South Africa, 1996 (hereafter the Constitution is seen as an integral step in the democratisation process as well as in the social and economic empowerment of previously marginalised groups. For many, the true test for political transformation will be whether land needs (including protection of and care for the environment are addressed effectively and in a sustainable manner. In recent years, however, government’s addressing of land needs has become a highly controversial issue, especially where land that vests in private owners is claimed back because of its status as ancestral land. Land reform may strongly impact on the environment and sustainable development as protected in section 24 of the Constitution since it involves vast hectares of land, other environmental media and people. Restitution of land processes in terms of section 25(7, as one of the components of land reform, often does not take key provisions contained in environmental and planning law into account. In many instances, for example, government’s restitution projects do not make sufficient provision for harmonisation with environmental principles contained in environmental law and no or limited systems exist whereby to inform and assist land restitution beneficiaries on compliance with environmental and planning law obligations in post settlement development endeavours. These limitations could, inter alia, be linked with the fragmentation of the environmental governance regime and a lack of role clarification. It may furthermore result in significant conflict between sections 24 and 25(7 of the Constitution as overarching framework legislation, and between developmental objectives contained in sectoral-specific subordinate legislation. The restitution of land is, amongst other policies, regulated by section 25(7 of the Constitution and the Restitution of Land Rights

Decree No. 895, Special Law on the expropriation and disposition of rural lands exceeding 245 hectares, 18 February 1988.

Science.gov (United States)

1988-01-01

This Law contains rules on the expropriation of land that was not broken into parcels as mandated by Article 105 of the Constitution of El Salvador. Such land is to be taken over by the Government unless it is the land of farming cooperatives or communities. Under the Law, a legal presumption exists that the owner of such land is responsible for the fact that it has not been broken up. The Salvadoran Institute of Agrarian Transformation (ISTA) is charged with taking possession and disposing of expropriated land. It is to determine indemnification for the land and to pay indemnification by means of agrarian reform bonds, which can be used by the holder for financing various agricultural projects. It is to transfer the land to farmers, farming communities, and farming cooperatives, with preference given to those already exploiting the land; no individual is to receive more than seven hectares. ISTA is also to set the terms by which those given land are to pay for it, and, in no case, is it to receive less than it gave to those from whom it expropriated the land. full text

Environmental law

International Nuclear Information System (INIS)

Kloepfer, M.

1989-01-01

This comprehensive reference book on environmental law and practice also is a valuable textbook for students specializing in the field. The entire law on pollution control and environmental protection is presented in an intelligent system, covering the latest developments in the Federal and Land legislation, public environmental law, and the related provisions in the fields of civil law and criminal law. The national survey is rounded up by information concerning the international environmental law, environmental law of the European Communities, and of other foreign countries as e.g. Austria and Switzerland. The author also reviews conditions in neighbouring fields such as technology and labour law, environmental economy, environmental policy. Special attention is given to current topics, as e.g. relating to genetic engineering, disused landfills or industrial sites, soil protection, transport of hazardous goods, liability for damage to forests, atomic energy law, and radiation protection law. The latest publishing dates of literature and court decisions considered in the book are in the first months of 1989. (RST) [de

Aircraft Landing and Attitude Control Using Dynamic Matrix Control

Directory of Open Access Journals (Sweden)

George Cristian Calugaru

2017-06-01

Full Text Available This paper proposes a method for an efficient control of the aircraft landing and attitude through Dynamic Matrix Control. The idea of MPC structures used in aircraft control has been well established during the last few years, but some aspects require further investigation. With this in mind, the paper proposes structures for aircraft landing and aircraft attitude control by using single DMC controllers for landing and respectively one DMC controller for each of the attitude axis (pitch attitude hold, bank angle hold and heading hold. The model used for analysis of the aircraft landing structure is based on the last phase of landing. Also, the model used to illustrate the attitude control is that of a pitch attitude hold system of a N250-100 aircraft. Simulations are performed for a variety of control and prediction horizons, taking into account the possibility of adding a weighting factor for the control actions. Apart from separate studies on step reference variations, for some use cases, a generic reference trajectory is provided as a control purpose of the system. Results show a better performance of the proposed method in terms of control surface transition and protection of the actuators involved and a better time response in stabilizing the aircraft attitude. Overall, the aspects shown ensure an improved aircraft attitude control and landing stabilization.

New Frontiers of Land Control

DEFF Research Database (Denmark)

Lee Peluso, Nancy; Lund, Christian

2011-01-01

rights, and territories created, extracted, produced, or protected on land. Primitive and on-going forms of accumulation, frontiers, enclosures, territories, grabs, and racializations have all been associated with mechanisms for land control. Agrarian environments have been transformed by processes of de...... analytic tools that had seemed to have timeless applicability with new frameworks, concepts, and theoretical tools. What difference does land control make? These contributions to the debates demonstrate that the answers have been shaped by conflicts, contexts, histories, and agency, as land has been...

Design of guidance laws for lunar pinpoint soft landing

NARCIS (Netherlands)

Guo, J.; Han, C.

2009-01-01

Future lunar missions ask for the capability to perform precise Guidance, Navigation and Control (GNC) to the selected landing sites on the lunar surface. This paper studies the guidance issues for the lunar pinpoint soft landing problem. The primary contribution of this paper is the design of

50 CFR 80.20 - Land control.

Science.gov (United States)

2010-10-01

... 50 Wildlife and Fisheries 6 2010-10-01 2010-10-01 false Land control. 80.20 Section 80.20 Wildlife... WILDLIFE RESTORATION AND DINGELL-JOHNSON SPORT FISH RESTORATION ACTS § 80.20 Land control. The State must control lands or waters on which capital improvements are made with Wildlife and Sport Fish Restoration...

Geothermal energy and the law. I. The Federal Lands Management Program

Energy Technology Data Exchange (ETDEWEB)

Stone, C.D.; McNamara, J.

1975-09-30

A broad range of problems in the legal and institutional environment which hampers the development of the geothermal industry is discussed. The topics include: the development of geothermal energy; pre-leasing procedures--public vs. private assessment; exploratory permits and related strategies; the rate of geothermal leasing-past and future; compensation strategies; lessee qualifications; lands available for leasing; noncompensatory lease terms; ongoing leasehold and production requirements; problems of ''secondary'' geothermal uses; and water law conflicts. (LBS)

Implications of land rights reform for Indigenous health.

Science.gov (United States)

Watson, Nicole L

2007-05-21

In August 2006, the Aboriginal Land Rights (Northern Territory) Amendment Bill 2006 (Cwlth) was passed into law, introducing, among other things, a system of 99-year leases over Indigenous townships. The leasing scheme will diminish the control that traditional owners previously exercised over their lands. This is at odds with research indicating that control over land is a positive influence on Indigenous health.

The Application of Chinese High-Spatial Remote Sensing Satellite Image in Land Law Enforcement Information Extraction

Science.gov (United States)

Wang, N.; Yang, R.

2018-04-01

Chinese high -resolution (HR) remote sensing satellites have made huge leap in the past decade. Commercial satellite datasets, such as GF-1, GF-2 and ZY-3 images, the panchromatic images (PAN) resolution of them are 2 m, 1 m and 2.1 m and the multispectral images (MS) resolution are 8 m, 4 m, 5.8 m respectively have been emerged in recent years. Chinese HR satellite imagery has been free downloaded for public welfare purposes using. Local government began to employ more professional technician to improve traditional land management technology. This paper focused on analysing the actual requirements of the applications in government land law enforcement in Guangxi Autonomous Region. 66 counties in Guangxi Autonomous Region were selected for illegal land utilization spot extraction with fusion Chinese HR images. The procedure contains: A. Defines illegal land utilization spot type. B. Data collection, GF-1, GF-2, and ZY-3 datasets were acquired in the first half year of 2016 and other auxiliary data were collected in 2015. C. Batch process, HR images were collected for batch preprocessing through ENVI/IDL tool. D. Illegal land utilization spot extraction by visual interpretation. E. Obtaining attribute data with ArcGIS Geoprocessor (GP) model. F. Thematic mapping and surveying. Through analysing 42 counties results, law enforcement officials found 1092 illegal land using spots and 16 suspicious illegal mining spots. The results show that Chinese HR satellite images have great potential for feature information extraction and the processing procedure appears robust.

43 CFR 4.477 - Findings of fact and decision by administrative law judge: Notice; submission to Board of Land...

Science.gov (United States)

2010-10-01

... presenting proposed findings and conclusions, the administrative law judge shall make findings of fact and... 43 Public Lands: Interior 1 2010-10-01 2010-10-01 false Findings of fact and decision by... Grazing Districts) § 4.477 Findings of fact and decision by administrative law judge: Notice; submission...

Adaptive landing gear concept—feedback control validation

Science.gov (United States)

Mikulowski, Grzegorz M.; Holnicki-Szulc, Jan

2007-12-01

The objective of this paper is to present an integrated feedback control concept for adaptive landing gears (ALG) and its experimental validation. Aeroplanes are subjected to high dynamic loads as a result of the impact during each landing. Classical landing gears, which are in common use, are designed in accordance with official regulations in a way that ensures the optimal energy dissipation for the critical (maximum) sink speed. The regulations were formulated in order to ensure the functional capability of the landing gears during an emergency landing. However, the landing gears, whose characteristics are optimized for these critical conditions, do not perform well under normal impact conditions. For that situation it is reasonable to introduce a system that would adapt the characteristics of the landing gears according to the sink speed of landing. The considered system assumes adaptation of the damping force generated by the landing gear, which would perform optimally in an emergency situation and would adapt itself for regular landings as well. This research covers the formulation and design of the control algorithms for an adaptive landing gear based on MR fluid, implementation of the algorithms on an FPGA platform and experimental verification on a lab-scale landing gear device. The main challenge of the research was to develop a control methodology that could operate effectively within 50 ms, which is assumed to be the total duration of the phenomenon. The control algorithm proposed in this research was able to control the energy dissipation process on the experimental stand.

Genetic Algorithm Optimizes Q-LAW Control Parameters

Science.gov (United States)

Lee, Seungwon; von Allmen, Paul; Petropoulos, Anastassios; Terrile, Richard

2008-01-01

A document discusses a multi-objective, genetic algorithm designed to optimize Lyapunov feedback control law (Q-law) parameters in order to efficiently find Pareto-optimal solutions for low-thrust trajectories for electronic propulsion systems. These would be propellant-optimal solutions for a given flight time, or flight time optimal solutions for a given propellant requirement. The approximate solutions are used as good initial solutions for high-fidelity optimization tools. When the good initial solutions are used, the high-fidelity optimization tools quickly converge to a locally optimal solution near the initial solution. Q-law control parameters are represented as real-valued genes in the genetic algorithm. The performances of the Q-law control parameters are evaluated in the multi-objective space (flight time vs. propellant mass) and sorted by the non-dominated sorting method that assigns a better fitness value to the solutions that are dominated by a fewer number of other solutions. With the ranking result, the genetic algorithm encourages the solutions with higher fitness values to participate in the reproduction process, improving the solutions in the evolution process. The population of solutions converges to the Pareto front that is permitted within the Q-law control parameter space.

STRENGTHENING THE SUSTAINABILITY OF PUBLIC FINANCES BY MEANS OF FINANCIAL LAW FOCUSED ON THE CONTROL AND AUDIT EXERCISE

Directory of Open Access Journals (Sweden)

Ionel BOSTAN

2016-02-01

Full Text Available The activity to prevent embrittlement sustainability of public finances should manifest itself permanently, regardless of economic circumstances - national or European. This, more so as it was set by the Stability and Growth Pact (SGP, which introduces new rules on fiscal policy. Regulations and exercise adequate of financial control and public audit are intended to give certain guarantees on landing approach this topic (most on enhancing sustainability of public finances. Therefore, our approach aims to reveal some aspects of fiscal consolidation by means of financial law focused on exercise fiscal control and public audit. Our references aim the current regulatory of this important organization and functioning rule of law activities and results reported.

Preventing and controlling land subsidence in Shanghai -towards more integrated and effective land use and ground water governance in the Yangtze Delta

Science.gov (United States)

Dai, Liping

2016-04-01

institutional arrangements of land subsidence prevention and control at three levels, i.e. the national level, the regional level (Yangtze Delta) and the city level (Shanghai). A three-step interdisciplinary diagnostic method, based on water system analysis, economics, law and public administration, will be applied.

Efficient Control Law Simulation for Multiple Mobile Robots

Energy Technology Data Exchange (ETDEWEB)

Driessen, B.J.; Feddema, J.T.; Kotulski, J.D.; Kwok, K.S.

1998-10-06

In this paper we consider the problem of simulating simple control laws involving large numbers of mobile robots. Such simulation can be computationally prohibitive if the number of robots is large enough, say 1 million, due to the 0(N2 ) cost of each time step. This work therefore uses hierarchical tree-based methods for calculating the control law. These tree-based approaches have O(NlogN) cost per time step, thus allowing for efficient simulation involving a large number of robots. For concreteness, a decentralized control law which involves only the distance and bearing to the closest neighbor robot will be considered. The time to calculate the control law for each robot at each time step is demonstrated to be O(logN).

Simple control law structure for the control of airplanes by means of their engines

OpenAIRE

Fezans, Nicolas

2011-01-01

In this paper a simple control law structure is presented for the control of airplanes using only the engines' thrust. For the design of such a propulsion controlled aircraft control law, the approach followed in this work is to look for the right level of performance in order to avoid both excessive engines activity and reduction of robustness properties. Another goal is to keep the control law and its tuning as simple as possible: for this a control law structure whose terms can easily be i...

Land Use Control Implementation Plan

Science.gov (United States)

Starr, Andrew Scott

2015-01-01

This Land Use Control Implementation Plan (LUCIP) has been prepared to inform current and potential future users of Building M7-505 of institutional controls that have been implemented at the site. Although there are no current unacceptable risks to human health or the environment associated with Building M7-505, institutional land use controls (LUCs) are necessary to prohibit the use of groundwater from the site. LUCs are also necessary to prevent access to soil under electrical equipment in the northwest portion of the site. Controls necessary to prevent human exposure will include periodic inspection, condition certification, and agency notification.

Evaluation of 'period-generated' control laws for the time-optimal control of reactor power

International Nuclear Information System (INIS)

Bernard, J.A.

1988-01-01

Time-Optimal control of neutronic power has recently been achieved by developing control laws that determine the actuator mechanism velocity necessary to produce a specified reactor period. These laws are designated as the 'MIT-SNL Period-Generated Minimum Time Control Laws'. Relative to time-optimal response, they function by altering the rate of change of reactivity so that the instantaneous period is stepped from infinity to its minimum allowed value, held at that value until the desired power level is attained, and then stepped back to infinity. The results of a systematic evaluation of these laws are presented. The behavior of each term in the control laws is shown and the capability of these laws to control properly the reactor power is demonstrated. Factors affecting the implementation of these laws, such as the prompt neutron lifetime and the differential reactivity worth of the actuators, are discussed. Finally, the results of an experimental study in which these laws were used to adjust the power of the 5 MWt MIT Research Reactor are shown. The information presented should be of interest to those designing high performance control systems for test, spacecraft, or, in certain instances, commercial reactors

Code of laws and regulations on atomic energy controls. Showa 53 ed.

International Nuclear Information System (INIS)

1978-01-01

The code has collected above laws and regulations promulgated by 10th February, 1978 and they can be classified into following several categories. 1. Atomic Energy Basic Law and Atomic Energy Commission Establishment Law including their related government orders, regulations and rules. 2. The Law for Regulation of Nuclear Source Material, Nuclear Fuel Material and regulations, rules, instructions and guidelines. 3. The Law on Technical Criteria for the Prevention of Radiation Hazards and the Law Concerning the Prevention of Radiation Hazards due to Radioisotopes, etc. including their related government orders, regulations, rules and announcements. 4. The Law on Compensation for Nuclear Damage with its relating government order and the Law on Indemnity Agreement for Compensation of Nuclear Damage. 5. Laws for establishing those nuclear energy development organizations as Japan Atomic Energy Research Institute, Japan Nuclear Ship Development Agency and Power Reactor and Nuclear Fuel Development Corporation. 6. Other laws relating to atomic energy and radiation utilization including their pertaining regulations, rules, standards, etc. such as: Electricity Business Law; Land Transportation and Cars Law; Ships and Vessels Safety Law; Aviation Law; Employees' Health and Safety Law; Electricity Resources Development Law; and others

78 FR 3913 - Public Land Order No. 7807: Withdrawal of Public Lands for the Camp Michael Monsoor Mountain...

Science.gov (United States)

2013-01-17

..., location, and entry under the general land laws, including the United States mining laws, for a period of... Training Facility. This withdrawal also transfers administrative jurisdiction of the lands to the... entry under the general land laws, including the United States mining laws, but not from leasing under...

Understanding the Role of the Co-Play between Land Use and Climate on Sediment Flux Laws in Intensively Managed Landscapes

Science.gov (United States)

Abban, B. K.; Papanicolaou, T.; Wilson, C. G.; Giannopoulos, C.; Sivapalan, M.

2017-12-01

In intensively managed landscapes (IMLs), changes in the land cover from what were previously grasslands, and their associated management practices, have led to a high degree of spatial heterogeneity and temporal variability in landscape processes that were absent pre-settlement. This has fundamentally altered terrestrial and instream sediment flux characteristics in regards to net amounts and proportions of source contributions, at shorter time scales. Sediment flux laws are now highly impacted by event-based dynamics. Whereas some events result in highly intermittent fluxes, others result in fluxes that largely propagate in the form of waves. This behavior is governed by the extent of land cover at the given time of the season, as well as the magnitude of the storm event. In addition, flux behavior changes as one moves from the plot scale to the watershed scale, and also with crop rotation. Thus, fluxes are now non-stationary due to continued human activity and its co-play with climate. The goal of this study is to develop a better understanding of the non-stationarity in sediment flux laws that arise from the co-play between land use and climate. Our approach involves the development of a modeling framework that considers all the exchanges between terrestrial and instream sources and addresses the issue of equifinality regarding terrestrial and instream source contributions on net sediment fluxes. The modeling framework couples an established terrestrial erosion model with an established in-stream sediment transport model. As a first step, our study focuses on the Clear Creek Watershed, IA, which is part of the Critical Zone Observatory for Intensively Managed Landscapes. We complement our modeling efforts with extensive terrestrial and instream field observations gathered at different times of the growing season, and in different years. We also used Bayesian sediment sourcing techniques to determine the provenance of transported material as well as the

43 CFR 422.3 - Reclamation law enforcement policy.

Science.gov (United States)

2010-10-01

... 43 Public Lands: Interior 1 2010-10-01 2010-10-01 false Reclamation law enforcement policy. 422.3 Section 422.3 Public Lands: Interior Regulations Relating to Public Lands BUREAU OF RECLAMATION, DEPARTMENT OF THE INTERIOR LAW ENFORCEMENT AUTHORITY AT BUREAU OF RECLAMATION PROJECTS § 422.3 Reclamation law enforcement policy. The law enforcement...

Featuring Control Power: Corporate Law and Economics Revisited

NARCIS (Netherlands)

A.M. Pacces (Alessio)

2008-01-01

textabstractThis dissertation reappraises the existing framework for economic analysis of corporate law. The standard approach to the legal foundations of corporate governance is based on the ‘law matters’ thesis, according to which corporate law promotes separation of ownership and control by

Flight Control Laws for NASA's Hyper-X Research Vehicle

Science.gov (United States)

Davidson, J.; Lallman, F.; McMinn, J. D.; Martin, J.; Pahle, J.; Stephenson, M.; Selmon, J.; Bose, D.

1999-01-01

The goal of the Hyper-X program is to demonstrate and validate technology for design and performance predictions of hypersonic aircraft with an airframe-integrated supersonic-combustion ramjet propulsion system. Accomplishing this goal requires flight demonstration of a hydrogen-fueled scramjet powered hypersonic aircraft. A key enabling technology for this flight demonstration is flight controls. Closed-loop flight control is required to enable a successful stage separation, to achieve and maintain the design condition during the engine test, and to provide a controlled descent. Before the contract award, NASA developed preliminary flight control laws for the Hyper-X to evaluate the feasibility of the proposed scramjet test sequence and descent trajectory. After the contract award, a Boeing/NASA partnership worked to develop the current control laws. This paper presents a description of the Hyper-X Research Vehicle control law architectures with performance and robustness analyses. Assessments of simulated flight trajectories and stability margin analyses demonstrate that these control laws meet the flight test requirements.

The law concerning the environmental impact assessment. Vol. 1. Collection of regulations with an introduction to EIA law; Das Recht der Umweltvertraeglichkeitspruefung. Bd. 1. Vorschriftensammlung mit Einfuehrung in das UVP-Recht

Energy Technology Data Exchange (ETDEWEB)

Peters, H.J.

1995-12-31

The present book contains all regulations relevant to EIA in compact form: The EU EIA Directive; the Federal Law on the EIA; the Procedural Rules of Atomic Energy Law; the Ninth Ordinance on the Federal Emissions Control Law including the pertinent general administrative regulation; the Federal Mining Law; the Federal Building Law; the Federal Regional Planning Law; and the EIA laws of the Laender such as implementing regulations, the Land EIA Laws, and the Land Planning Laws. There is a basic introduction to EIA law preceding this collection of regulations and laws. (orig./HP) [Deutsch] Das Buch bietet alle UVP-Vorschriften in kompakter Form, die UVPRL der EU, das UVPG, die Atomrechtliche Verfahrensverordnung (AtVfV) und die 9. BImSchV einschliesslich der entsprechenden Allgemeinen Verwaltungsvorschrift sowie das BBergG, das BauGB, das ROG bis hin zum UVP-Recht der Laender wie DurchfuehrungsVO, LUVPG und Landesplanungsgesetzen. Vorangestellt ist diesen Vorschriften eine grundlegende Einfuehrung in das Recht des UVP. (orig./HP)

Urban Land Use Classifcation Linked to Planning Management

Institute of Scientific and Technical Information of China (English)

QI Dongjin; ZHOU Jianyun; SHI Ke

2012-01-01

By analyzing the applicability of the new Code for Classification of Urban Land Use and Planning Standards of Development Land from the angle of planning management,this paper points out the conflicts between the planning and land use management institutions.Referring to the experience of land use control in the US and the UK through zoning and case law respectively,this paper puts forward that the urban land use classification should take into consideration the characteristics of the actual urban planning system and the possibility of mixed land use due to the uncertainty of urban development,and be linked to the institutions of planning and land supply management.

Land associations in Slovakia

Directory of Open Access Journals (Sweden)

Anna Bandlerová

2017-10-01

Full Text Available The land fragmentation is one of the serious problems in Slovakia which is given by the historical development of the land law. In the past, landowners tried to solve this problem by creation of various forms of land associations oriented to the common cultivation of agricultural land and forest land. Nowadays, the Slovak lawmaker decided to regulate the institute of land associations by the law. Land associations in Slovakia are legal entities conducting agricultural business on agricultural land, forest land or in water areas; moreover, they can provide also other business activities according to particular legal regulations. Land associations conduct business on real estate property or, more commonly, properties, which are usually owned by many co-owners, because the individual cultivation of small part of land plots would not be effective. However, the law is a subject of legal amendments more often than necessary in order to ensure the legal certainty. This paper introduces this recondite legal entity, its activities, its internal government and the ownership rights of its members. A pre-emption right that has a special legal regulation different from the general legal regulations of the pre-emption rights in the Civil Code is one of the special issues.

Aeroelastic scaling laws for gust load alleviation control system

Directory of Open Access Journals (Sweden)

Tang Bo

2016-02-01

Full Text Available Gust load alleviation (GLA tests are widely conducted to study the effectiveness of the control laws and methods. The physical parameters of models in these tests are aeroelastic scaled, while the scaling of GLA control system is always unreached. This paper concentrates on studying the scaling laws of GLA control system. Through theoretical demonstration, the scaling criterion of a classical PID control system has been come up and a scaling methodology is provided and verified. By adopting the scaling laws in this paper, gust response of the scaled model could be directly related to the full-scale aircraft theoretically under both open-loop and closed-loop conditions. Also, the influences of different scaling choices of an important non-dimensional parameter, the Froude number, have been studied in this paper. Furthermore for practical application, a compensating method is given when the theoretical scaled actuators or sensors cannot be obtained. Also, the scaling laws of some non-linear elements in control system such as the rate and amplitude saturations in actuator have been studied and examined by a numerical simulation.

Bumblebees perform well-controlled landings in dim light

Directory of Open Access Journals (Sweden)

Therese Reber

2016-09-01

Full Text Available To make a smooth touchdown when landing, an insect must be able to reliably control its approach speed as well as its body and leg position – behaviors that are thought to be regulated primarily by visual information. Bumblebees forage and land under a broad range of light intensities and while their behavior during the final moments of landing has been described in detail in bright light, little is known about how this is affected by decreasing light intensity. Here, we investigate this by characterizing the performance of bumblebees, B. terrestris, landing on a flat platform at two different orientations (horizontal and vertical and at four different light intensities (ranging from 600 lx down to 19 lx. As light intensity decreased, the bees modified their body position and the distance at which they extended their legs, suggesting that the control of landing in these insects is visually mediated. Nevertheless, the effect of light intensity was small and the landings were still well controlled, even in the dimmest light. We suggest that the changes in landing behavior that occurred in dim light might represent adaptations that allow the bees to perform smooth landings across the broad range of light intensities at which they are active.

Bumblebees Perform Well-Controlled Landings in Dim Light.

Science.gov (United States)

Reber, Therese; Dacke, Marie; Warrant, Eric; Baird, Emily

2016-01-01

To make a smooth touchdown when landing, an insect must be able to reliably control its approach speed as well as its body and leg position-behaviors that are thought to be regulated primarily by visual information. Bumblebees forage and land under a broad range of light intensities and while their behavior during the final moments of landing has been described in detail in bright light, little is known about how this is affected by decreasing light intensity. Here, we investigate this by characterizing the performance of bumblebees, B. terrestris, landing on a flat platform at two different orientations (horizontal and vertical) and at four different light intensities (ranging from 600 lx down to 19 lx). As light intensity decreased, the bees modified their body position and the distance at which they extended their legs, suggesting that the control of landing in these insects is visually mediated. Nevertheless, the effect of light intensity was small and the landings were still well controlled, even in the dimmest light. We suggest that the changes in landing behavior that occurred in dim light might represent adaptations that allow the bees to perform smooth landings across the broad range of light intensities at which they are active.

State laws on tobacco control--United States, 1998.

Science.gov (United States)

Fishman, J A; Allison, H; Knowles, S B; Fishburn, B A; Woollery, T A; Marx, W T; Shelton, D M; Husten, C G; Eriksen, M P

1999-06-25

State laws addressing tobacco use, the leading preventable cause of death in the United States, are summarized. Laws address smoke-free indoor air, minors' access to tobacco products, advertising of tobacco products, and excise taxes on tobacco products. Legislation effective through December 31, 1998. CDC identified laws addressing tobacco control by using an on-line legal research database. CDC's findings were verified with the National Cancer Institute's State Cancer Legislative Database. Since a previous surveillance summary on state tobacco-control laws published in November 1995 (covering legislation effective through June 30, 1995), several states have enacted new restrictions or strengthened existing legislation that addresses smoke-free indoor air, minors' access to tobacco, tobacco advertising, and tobacco taxes. Five states strengthened their smoke-free indoor air legislation. All states and Washington, D.C., continued to prohibit the sale and distribution of tobacco products to minors; however, 21 states expanded minors' access laws by designating enforcement authorities, adding license suspension or revocation for sale to minors, or requiring signage. Since the 1995 report, eight additional states (a total of 19 states and Washington, D.C.) now ban vending machines from areas accessible to minors. Thirteen states restrict advertising of tobacco products, an increase of four states since the 1995 report. Although the number of states that tax cigarettes and smokeless tobacco did not change, 13 states increased excise taxes on cigarettes, and five states increased excise taxes on smokeless tobacco products. The average state excise tax on cigarettes is 38.9 cents per pack, an increase of 7.4 cents compared with the average tax in the 1995 report. State laws addressing tobacco control vary in relation to restrictiveness, enforcement and penalties, preemptions, and exceptions. The data summarizing state tobacco-control laws are available through CDC

Intelligent robust control law for induction motors based on field-oriented control theory

Energy Technology Data Exchange (ETDEWEB)

Barambones, O.; Alcorta, P.; Sevillano, G.; Garrido, A.; Garrido, I. [Univ. del Pais Vasco, Bilbao (Spain). Dpto. Ingenieri a de Sistemas y Automatica

2009-07-01

A sensorless adaptive control law was developed to improve the trajectory tracking performance of induction motors. The law used an integral sliding mode algorithm to avoid the necessity of calculating an upper bound for system uncertainties. The vector control theory was used to develop the induction motor drives. The sliding mode control law incorporated an adaptive switching gain and included a method of estimating rotor speeds. Rotor speed estimation errors were presented as a first order simple function based on the difference between real stator currents and estimated stator currents. The Lyapunov stability theory was used to analyze the controller under different load disturbances and parameter uncertainties. Results of the study showed that the control signal of the scheme was smaller than signals obtained using traditional variable structure control schemes. It was concluded that speed tracking objectives can be obtained under various parameter and torque uncertainties. 9 refs., 7 figs.

76 FR 18244 - Public Land Order No. 7760; Extension of Public Land Order No. 6839; Alaska

Science.gov (United States)

2011-04-01

... (1991)), which modified Public Land Order No. 2344 (26 FR 3701 (1961)), transferred jurisdiction of... land laws, including the mining and mineral leasing laws, but not disposal of materials under the Act...

Exclusion of objections in licensing procedures according to Atomic Energy Law or Pollution Control Law

International Nuclear Information System (INIS)

Stober, R.

1980-01-01

The contribution shows that the exclusion of objections after expiration of the term provided for in licensing procedures under Atomic Energy Law and Pollution Control Law has to be understood extensively and that it is in accordance with German Basic Law. In detail, the treatise is limited to the discussion of the following issues: the effects of the expiration of the period on the right to raise objections, the importance of the exclusion of objections for lawsuits and the importance of the exclusion of objections for constitutional law. (orig./HSCH) [de

Dynamic coordinated control laws in multiple agent models

International Nuclear Information System (INIS)

Morgan, David S.; Schwartz, Ira B.

2005-01-01

We present an active control scheme of a kinetic model of swarming. It has been shown previously that the global control scheme for the model, presented in [Systems Control Lett. 52 (2004) 25], gives rise to spontaneous collective organization of agents into a unified coherent swarm, via steering controls and utilizing long-range attractive and short-range repulsive interactions. We extend these results by presenting control laws whereby a single swarm is broken into independently functioning subswarm clusters. The transition between one coordinated swarm and multiple clustered subswarms is managed simply with a homotopy parameter. Additionally, we present as an alternate formulation, a local control law for the same model, which implements dynamic barrier avoidance behavior, and in which swarm coherence emerges spontaneously

The importance of domestic law to international arms control

International Nuclear Information System (INIS)

Lehman, R.F. II.

1993-11-01

Studies of arms control and disarmament tend to focus on political, military, and diplomatic processes. Recently, in the context of the conversion of defense activities to civilian use, the economic aspects of arms control have also received renewed interest. The legal dimension, however, is in need of fresh examination. Both international and domestic law are sailing increasingly in uncharted waters. Recent arms control agreements and related developments in international peacekeeping have expanded the scope of international law and altered how one perceives certain fundamentals, including the principle of national sovereignty. Still, the nation state is largely unchallenged as the primary actor in international affairs. National governments retain near absolute sovereign rights and responsibilities even in an age of trans-national economic integration and codified international norms for human rights, freedom of the press, and the peaceful resolution of disputes. Indeed, the role of domestic law in arms control and disarmament may be more significant now than ever before. A brief review of relationships between arms control and domestic law should illustrate ways in which ones thinking has been underestimating the importance of domestic law. Hopefully, this survey will set the stage properly for the excellent, more detailed case studies by Elinor Hammarskjold and Alan Crawford. Toward that end, this paper will highlight a number of more general, and sometimes provocative, themes. These themes should be kept in mind when those two complementary presentations are considered

The importance of domestic law to international arms control

Energy Technology Data Exchange (ETDEWEB)

Lehman, R.F. II

1993-11-01

Studies of arms control and disarmament tend to focus on political, military, and diplomatic processes. Recently, in the context of the conversion of defense activities to civilian use, the economic aspects of arms control have also received renewed interest. The legal dimension, however, is in need of fresh examination. Both international and domestic law are sailing increasingly in uncharted waters. Recent arms control agreements and related developments in international peacekeeping have expanded the scope of international law and altered how one perceives certain fundamentals, including the principle of national sovereignty. Still, the nation state is largely unchallenged as the primary actor in international affairs. National governments retain near absolute sovereign rights and responsibilities even in an age of trans-national economic integration and codified international norms for human rights, freedom of the press, and the peaceful resolution of disputes. Indeed, the role of domestic law in arms control and disarmament may be more significant now than ever before. A brief review of relationships between arms control and domestic law should illustrate ways in which ones thinking has been underestimating the importance of domestic law. Hopefully, this survey will set the stage properly for the excellent, more detailed case studies by Elinor Hammarskjold and Alan Crawford. Toward that end, this paper will highlight a number of more general, and sometimes provocative, themes. These themes should be kept in mind when those two complementary presentations are considered.

Quaternion error-based optimal control applied to pinpoint landing

Science.gov (United States)

Ghiglino, Pablo

Accurate control techniques for pinpoint planetary landing - i.e., the goal of achieving landing errors in the order of 100m for unmanned missions - is a complex problem that have been tackled in different ways in the available literature. Among other challenges, this kind of control is also affected by the well known trade-off in UAV control that for complex underlying models the control is sub-optimal, while optimal control is applied to simplifed models. The goal of this research has been the development new control algorithms that would be able to tackle these challenges and the result are two novel optimal control algorithms namely: OQTAL and HEX2OQTAL. These controllers share three key properties that are thoroughly proven and shown in this thesis; stability, accuracy and adaptability. Stability is rigorously demonstrated for both controllers. Accuracy is shown in results of comparing these novel controllers with other industry standard algorithms in several different scenarios: there is a gain in accuracy of at least 15% for each controller, and in many cases much more than that. A new tuning algorithm based on swarm heuristics optimisation was developed as well as part of this research in order to tune in an online manner the standard Proportional-Integral-Derivative (PID) controllers used for benchmarking. Finally, adaptability of these controllers can be seen as a combination of four elements: mathematical model extensibility, cost matrices tuning, reduced computation time required and finally no prior knowledge of the navigation or guidance strategies needed. Further simulations in real planetary landing trajectories has shown that these controllers have the capacity of achieving landing errors in the order of pinpoint landing requirements, making them not only very precise UAV controllers, but also potential candidates for pinpoint landing unmanned missions.

Digest of impaired driving and selected beverage control laws

Science.gov (United States)

2006-04-01

This digest reports the status of State laws that are concerned with impaired driving offenses and alcoholic beverage control. Unless otherwise indicated, the status of the laws reported is January 1, 2006.

Water Rights on Community Lands: LandMark’s Findings from 100 Countries

Directory of Open Access Journals (Sweden)

Liz Alden Wily

2017-11-01

Full Text Available This paper analyzes whether national laws acknowledge indigenous peoples and other rural communities in 100 countries as owners of waters that arise within their lands. Results derive from information collected by LandMark to score the legal status of community land tenure. Findings are positive; half of all countries recognize communities as lawful possessors of water on their lands. Three quarters permit communities to manage the distribution and use of water on their lands. While 71 percent of countries declare water to be a public resource, this belies the substantial existence of privately owned water. In 29 percent of countries, private water is an identified legal category, and in many other countries obtainable rights to water are sufficiently substantial to imply lawful possession. Communities are beneficiaries mainly where customary rights are accorded status as property rights, or where ownership of public lands and water are devolved to rural collectives. However, opposite trends of nationalization and regulation of water suggest that while legal recognition of community land ownership may rise in the future, this will not necessarily include waters on the land. Irrespective of tenure, rural communities in 72 of 77 countries (93.5 percent are legally assured access to water for domestic purposes. This is consistent with the rising definition of safe drinking water as a human right, although access does not necessarily come free of cost.

Development of a Model Following Control Law for Inflight Simulation and Flight Controls Research

Science.gov (United States)

Takahashi, Mark; Fletcher, Jay; Aiken, Edwin W. (Technical Monitor)

1994-01-01

The U.S. Army and NASA are currently developing the Rotorcraft Aircrew Systems Concepts Airborne Laboratory (RASCAL) at the Ames Research Center. RASCAL, shown in Figure 1, is a UH-60, which is being modified in a phased development program to have a research fly-by-wire flight control system, and an advanced navigation research platform. An important part of the flight controls and handling qualities research on RASCAL will be an FCS design for the aircraft to achieve high bandwidth control responses and disturbance rejection characteristics. Initially, body states will be used as feedbacks, but research into the use of rotor states will also be considered in later stages to maximize agility and maneuverability. In addition to supporting flight controls research, this FCS design will serve as the inflight simulation control law to support basic handling qualities, guidance, and displays research. Research in high bandwidth controls laws is motivated by the desire to improve the handling qualities in aggressive maneuvering and in severely degraded weather conditions. Naturally, these advantages will also improve the quality of the model following, thereby improving the inflight simulation capabilities of the research vehicle. High bandwidth in the control laws provides tighter tracking allowing for higher response bandwidths which can meet handling qualities requirements for aggressive maneuvering. System sensitivity is also reduced preventing variations in the response from the vehicle due to changing flight conditions. In addition, improved gust rejection will result from this reduced sensitivity. The gust rejection coupled with a highly stable system will make more precise maneuvering and pointing possible in severely degraded weather conditions. The difficulty in achieving higher bandwidths from the control laws in the feedback and in the responses arises from the complexity of the models that are needed to produce a satisfactory design. In this case, high

Namibian women and land.

Science.gov (United States)

Andima, J J

1994-03-01

More than 50% of Namibia's 1.5 million inhabitants live in reserved communal areas; most of these are women who make up a third of the country's total population. Women are the main food producers, but access to land, livestock, water, and fuelwood is determined for women by marriage arrangements and settlements. In some parts of the country, women can obtain land in their own right, but they suffer from such subtle discouragements as receiving inferior land or having their stock mysteriously disappear. In some villages, a fee must be paid to a village head upon the allocation of land. This fee guarantees land tenure until the death or eviction of the person who paid the fee. In some areas, only men or widows (and sometimes divorced women) are eligible, and widows must reapply for permission to stay on their husband's land. Women also have a heavy labor burden. Since most of the men migrate to the urban areas for wage employment, the women must tend livestock and harvest and store the grain as well as run their households. Woman also may be evicted from commercial farms if their husbands die. In some areas, all property reverts to a husband's family upon his death, and the wife must return to her own relative. In some tribes, widows must leave their houses empty-handed; their sisters-in-law inherit any stored grain or clothing available. Other tribes are more liberal, and property remains with the widow. In this case, a male relative will be assigned to help the widow manage the property. Reform efforts which attempt to end such abuses by bringing common and customary law in compliance with the Namibian constitution are having an effect. The Women and Law Committee of the Law Reform and the Development Commission is working with the Customary Law Commission to involve traditional leaders in the adaptation of customary law to modern requirements which make discrimination against women unlawful. Until woman have security of land tenure, they are unwilling to invest

A disturbance decoupling nonlinear control law for variable speed wind turbines

DEFF Research Database (Denmark)

Thomsen, Sven Creutz; Poulsen, Niels Kjølstad

2007-01-01

This paper describes a nonlinear control law for controlling variable speed wind turbines using feedback linearization. The novel aspect of the control law is its ability to decouple the effect of wind fluctuations. Furthermore, the transformation to feedback linearizable coordinates is chosen...

Design and Testing of Flight Control Laws on the RASCAL Research Helicopter

Science.gov (United States)

Frost, Chad R.; Hindson, William S.; Moralez. Ernesto, III; Tucker, George E.; Dryfoos, James B.

2001-01-01

Two unique sets of flight control laws were designed, tested and flown on the Army/NASA Rotorcraft Aircrew Systems Concepts Airborne Laboratory (RASCAL) JUH-60A Black Hawk helicopter. The first set of control laws used a simple rate feedback scheme, intended to facilitate the first flight and subsequent flight qualification of the RASCAL research flight control system. The second set of control laws comprised a more sophisticated model-following architecture. Both sets of flight control laws were developed and tested extensively using desktop-to-flight modeling, analysis, and simulation tools. Flight test data matched the model predicted responses well, providing both evidence and confidence that future flight control development for RASCAL will be efficient and accurate.

Organic Law Of Judicial Guarantees And Constitutional Control

Directory of Open Access Journals (Sweden)

Ernesto López Freire

2013-01-01

Full Text Available This paper demonstrates the various unconstitutional and fallacies of the Organic Law of Judicial guarantees and Constitutional Control. For that, there will be a comprehensive collation between the mentioned law and the Constitution of the Republic of Ecuador and force. Through this analysis shows a lack of knowledge of Ecuadorian law or legal science by their authors. This study elucidated, inter alia, the inconsistencies in matters relating to the interpretation of constitutional provisions, full compensation, material and integral; challenge administrative acts, judicial unit.

Software Considerations for Subscale Flight Testing of Experimental Control Laws

Science.gov (United States)

Murch, Austin M.; Cox, David E.; Cunningham, Kevin

2009-01-01

The NASA AirSTAR system has been designed to address the challenges associated with safe and efficient subscale flight testing of research control laws in adverse flight conditions. In this paper, software elements of this system are described, with an emphasis on components which allow for rapid prototyping and deployment of aircraft control laws. Through model-based design and automatic coding a common code-base is used for desktop analysis, piloted simulation and real-time flight control. The flight control system provides the ability to rapidly integrate and test multiple research control laws and to emulate component or sensor failures. Integrated integrity monitoring systems provide aircraft structural load protection, isolate the system from control algorithm failures, and monitor the health of telemetry streams. Finally, issues associated with software configuration management and code modularity are briefly discussed.

Nonlinear Dynamic Inversion Baseline Control Law: Architecture and Performance Predictions

Science.gov (United States)

Miller, Christopher J.

2011-01-01

A model reference dynamic inversion control law has been developed to provide a baseline control law for research into adaptive elements and other advanced flight control law components. This controller has been implemented and tested in a hardware-in-the-loop simulation; the simulation results show excellent handling qualities throughout the limited flight envelope. A simple angular momentum formulation was chosen because it can be included in the stability proofs for many basic adaptive theories, such as model reference adaptive control. Many design choices and implementation details reflect the requirements placed on the system by the nonlinear flight environment and the desire to keep the system as basic as possible to simplify the addition of the adaptive elements. Those design choices are explained, along with their predicted impact on the handling qualities.

Perspective of public law in rearrangement of profit sharing system agricultural land in Indonesia

Science.gov (United States)

Tamsil; Susilowati, IF; Wardhana, M.

2018-01-01

Review of the Shared Revenue Act for better regulatory system is an important issue as a more realistic and highly feasible agrarian reform policy. The rearrangement of agricultural land tenure systems is difficult to implement because it must be done simultaneously and thoroughly plus the support of large economic and political cost allocations; Instead, allowing the use of land in market mechanisms violating the principles of fairness on profit sharing. So it needs agrarian policies that are gradual and more realistic, such as revision of Act on profit sharing. In the previous research, the characteristics of the land sharing system in Indonesia are: (1) The Revenue Sharing Agreement is seen as a personal relationship subject to the private of law, not public rules; (2) found character of unequal Patron-client relationship between landowner and farmer; (3) Different revenue sharing systems and tend to position smallholders as weak and defeated. This study aims to discuss the State’s ‘interference’ in changing the profit sharing system by limiting individual freedom on the basis of a ‘new’ perspective of profit sharing as a relative legal relation. In the future, the profit-sharing system should be able to provide legal protection for farmers, as well as landowners.

Land Tenure Practices and Women's Right to Land : Implications for ...

International Development Research Centre (IDRC) Digital Library (Canada)

Women's right to land in Anglophone Cameroon is subject to two conflicting regimes, customary and statutory. This grant will allow a team of researchers to examine women's right to land under statutory and customary law, and how access to land (or lack of it) affects women's economic status and participation in the ...

Robust Operation of Tendon-Driven Robot Fingers Using Force and Position-Based Control Laws

Science.gov (United States)

Abdallah, Muhammad E (Inventor); Platt, Jr., Robert J. (Inventor); Reiland, Matthew J (Inventor); Hargrave, Brian (Inventor); Diftler, Myron A (Inventor); Strawser, Philip A (Inventor); Ihrke, Chris A. (Inventor)

2013-01-01

A robotic system includes a tendon-driven finger and a control system. The system controls the finger via a force-based control law when a tension sensor is available, and via a position-based control law when a sensor is not available. Multiple tendons may each have a corresponding sensor. The system selectively injects a compliance value into the position-based control law when only some sensors are available. A control system includes a host machine and a non-transitory computer-readable medium having a control process, which is executed by the host machine to control the finger via the force- or position-based control law. A method for controlling the finger includes determining the availability of a tension sensor(s), and selectively controlling the finger, using the control system, via the force or position-based control law. The position control law allows the control system to resist disturbances while nominally maintaining the initial state of internal tendon tensions.

Some optimal considerations in attitude control systems. [evaluation of value of relative weighting between time and fuel for relay control law

Science.gov (United States)

Boland, J. S., III

1973-01-01

The conventional six-engine reaction control jet relay attitude control law with deadband is shown to be a good linear approximation to a weighted time-fuel optimal control law. Techniques for evaluating the value of the relative weighting between time and fuel for a particular relay control law is studied along with techniques to interrelate other parameters for the two control laws. Vehicle attitude control laws employing control moment gyros are then investigated. Steering laws obtained from the expression for the reaction torque of the gyro configuration are compared to a total optimal attitude control law that is derived from optimal linear regulator theory. This total optimal attitude control law has computational disadvantages in the solving of the matrix Riccati equation. Several computational algorithms for solving the matrix Riccati equation are investigated with respect to accuracy, computational storage requirements, and computational speed.

Optimization of motion control laws for tether crawler or elevator systems

Science.gov (United States)

Swenson, Frank R.; Von Tiesenhausen, Georg

1988-01-01

Based on the proposal of a motion control law by Lorenzini (1987), a method is developed for optimizing motion control laws for tether crawler or elevator systems in terms of the performance measures of travel time, the smoothness of acceleration and deceleration, and the maximum values of velocity and acceleration. The Lorenzini motion control law, based on powers of the hyperbolic tangent function, is modified by the addition of a constant-velocity section, and this modified function is then optimized by parameter selections to minimize the peak acceleration value for a selected travel time or to minimize travel time for the selected peak values of velocity and acceleration. It is shown that the addition of a constant-velocity segment permits further optimization of the motion control law performance.

Agriculture: Land Use

Science.gov (United States)

Land Use and agriculture. Information about land use restrictions and incentive programs.Agricultural operations sometimes involve activities regulated by laws designed to protect water supplies, threatened or endangered plants and animals, or wetlands.

Stochastic control and the second law of thermodynamics

Science.gov (United States)

Brockett, R. W.; Willems, J. C.

1979-01-01

The second law of thermodynamics is studied from the point of view of stochastic control theory. We find that the feedback control laws which are of interest are those which depend only on average values, and not on sample path behavior. We are lead to a criterion which, when satisfied, permits one to assign a temperature to a stochastic system in such a way as to have Carnot cycles be the optimal trajectories of optimal control problems. Entropy is also defined and we are able to prove an equipartition of energy theorem using this definition of temperature. Our formulation allows one to treat irreversibility in a quite natural and completely precise way.

A Comparative Study of Obsessionality in Medical Students, Law Students, and Controls.

Science.gov (United States)

Harries, Michael D; Kim, Suck Won; Grant, Jon E

2017-09-01

Understanding obsessive-compulsive behavior in medical students and law students is necessary for administrators and educators to properly work with students struggling with obsessionality. We aim to compare the differences in obsessive symptoms between medical students, law students and a control population. A total of 100 third-year medical students, 102 third-year law students and 103 control subjects drawn from the general population completed the Leyton Obsessional Inventory (LOI). Subjects were examined on all three sections (symptoms/traits, resistance and interference) of the LOI. Obsessional symptom scores for medical students (14.29 ± 7.33) and law students (13.65 ± 6.61) were significantly greater than for the control group (11.58 ± 7.45). Medical and law students were both more likely to report checking, order, routine and attention to detail as obsessive symptoms. Medical students were more likely than law students to possess the obsessive symptoms of cleanliness and conscientiousness, while law students were more likely than medical students to possess obsessive symptoms related to difficulty in making up their mind and doubting themselves. While medical students and law students are more obsessional than the control population, each group is more likely to report different obsessive symptoms.

Infectious disease-related laws: prevention and control measures

Directory of Open Access Journals (Sweden)

Mijeong Park

2017-07-01

Full Text Available OBJECTIVES This study examines recently revised Korean government legislation addressing global infectious disease control for public health emergency situations, with the aim of proposing more rational, effective and realistic interpretations and applications for improvement of law. METHODS The Korea reported its first laboratory-confirmed case of Middle East Respiratory Syndrome (MERS coronavirus on May 20, 2015. Since the first indexed case, Korean public health authorities enforced many public health measures that were not authorized in the law; the scope of the current law was too limited to cover MERS. Korea has three levels of government: the central government, special self-governing provinces, and si/gun/gu. Unfortunately, the Infectious Disease Control and Prevention Act does not designate the specific roles of each level of government, and does not state how these governmental branches should be vertically integrated in a state of emergency. RESULTS When thinking about these policy questions, we should be especially concerned about introducing a new act that deals with all matters relevant to emerging infectious diseases. The aim would be to develop a structure that specifies the roles of each level of government, and facilitates the close collaboration among them, then enacting this in law for the prevention and response of infectious disease. CONCLUSIONS To address this problem, after analyzing the national healthcare infrastructure along with the characteristics of emerging infectious diseases, we propose the revision of the relevant law(s in terms of governance aspects, emergency medical countermeasure aspects, and the human rights aspect.

Significant improvements of electrical discharge machining performance by step-by-step updated adaptive control laws

Science.gov (United States)

Zhou, Ming; Wu, Jianyang; Xu, Xiaoyi; Mu, Xin; Dou, Yunping

2018-02-01

In order to obtain improved electrical discharge machining (EDM) performance, we have dedicated more than a decade to correcting one essential EDM defect, the weak stability of the machining, by developing adaptive control systems. The instabilities of machining are mainly caused by complicated disturbances in discharging. To counteract the effects from the disturbances on machining, we theoretically developed three control laws from minimum variance (MV) control law to minimum variance and pole placements coupled (MVPPC) control law and then to a two-step-ahead prediction (TP) control law. Based on real-time estimation of EDM process model parameters and measured ratio of arcing pulses which is also called gap state, electrode discharging cycle was directly and adaptively tuned so that a stable machining could be achieved. To this end, we not only theoretically provide three proved control laws for a developed EDM adaptive control system, but also practically proved the TP control law to be the best in dealing with machining instability and machining efficiency though the MVPPC control law provided much better EDM performance than the MV control law. It was also shown that the TP control law also provided a burn free machining.

Origins and framework of environmental law in the United States

Energy Technology Data Exchange (ETDEWEB)

Robinson, N A

1975-11-01

A sensitivity for protecting the environment has opened a new field of Environmental Law, backed by government allocations, legal and administrative procedures, and public involvement. Environmental laws, however, remain responsive to new scientific and technological discoveries and expanding public pressures for both environmental protection and energy. Prior to the 1960s, there were laws to regulate resource exploitation, preserve natural areas, correct past damage, protect public health, control land use, and preserve common law and equity. Since then environmental concerns have become laws, agencies, and part of the law school curriculum. New regulations requiring accountability from the private sector, local governments, and public corporations (e.g., utilities) tend to cut across jurisdictions and require changes in governmental relationships. The legal tools available for protecting the environment include (1) regulation, such as permit and licensing systems and allocations; (2) procedural innovations, such as environmental impact analysis and reporting; (3) direct action, such as imposed air and water quality standards; (4) taxation; (5) government spending and contracting, as in solid waste disposal; (6) grants-in-aid and loans; (7) court enforcement; (8) coordinated land use; and (9) research. Citizen participation in the use of these tools has been vital to the momentum of an environmental protection concept. (150 references) (DCK)

Regionally differentiated air pollution control regulations in the installation-related emission control law of the Federal Republic of Germany

International Nuclear Information System (INIS)

Buettner, T.W.

1992-01-01

The volume treats an issue from the boundary zone between environmental law and environmental economics, namely the regionalization of air pollution control standards in installation-related emission control law. In order to examine the question of whether this proposal, which originates in the field of environmental economics, can be adopted and is purposeful, the author initially performs a complete inventorization of applicable norms, this covering emission control law, the law of regional planning, and the provisions of international law. This status quo is then reviewed using conformity and optimization criteria developed by the political sciences. The assessment comes to the conclusion that the introduction of regionally differentiated air pollution control standards is not desirable. The author further submits proposals for the streamlining of the law of installation-related air pollution control in the Federal Republic of Germany. (orig.) [de

Landing-Time-Controlled Management Of Air Traffic

Science.gov (United States)

Erzberger, Heinz; Tobias, Leonard

1988-01-01

Conceptual system controls aircraft with old and new guidance equipment. Report begins with overview of concept, then reviews controller-interactive simulations. Describes fuel-conservative-trajectory algorithm, based on equations of motion for controlling landing time. Finally, presents results of piloted simulations.

Theoretical concepts "land management process", "land management procedure" and their relationships

Directory of Open Access Journals (Sweden)

Tretiak A.M.

2017-08-01

Full Text Available The state significance of land management activities is manifested in those legal consequences that arise after the issuance of land management documentation and are conditioned by the need to secure unsupported land rights and the use and protection of land in a state-guaranteed manner. The procedural activity of land surveyors and other persons authorized by the state to commit land management operations must be carried out in a certain order established by the state and obey the rights and obligations of the persons specified by the legislation at each stage of the development of such relations.The main goal of applying to land management organizations and land surveyors is landuse documentation, which is made in accordance with the requirements of the law and with which the relevant legal properties of the land management procedure are associated. First of all, let's dwell on such basic concepts as "land management process" and "land management procedure". Consideration of the term "land management process" implies a preliminary analysis of the category "process". At the same time, it must be admitted that the development of the procedural form of this category has not been paid attention. Considering the concept of "land management process", its place and role in the system of social relations, emphasis will be placed on the concept of a broad understanding of the legal process, the problem of which exists for decades.Thus, the legal process is a regulated by the procedural rules procedure for the activities of competent state bodies, consisting of the preparation, adoption and documentary consolidation of legal decisions of a general and individual nature. In the land law, the category "process" is specific and serves to designate relationships that provide regulatory and security land-property relationships. Particularly difficult today is the question of the delimitation of the concepts of "process" and "procedure" in general. Regarding

Performance evaluation on vibration control of MR landing gear

Energy Technology Data Exchange (ETDEWEB)

Lee, D Y; Nam, Y J; Park, M K [Graduate School, Pusan National University, Busan 609-735 (Korea, Republic of); Yamane, R [Kokushikan University, 4-28-1 Setagaya, Setagaya-ku, Tokyo 154-8515 (Japan)], E-mail: ldy5577@yahoo.co.kr, E-mail: mkpark1@pusan.ac.kr

2009-02-01

This paper is concerned with the applicability of the developed MR damper to the landing gear system for the attenuating undesired shock and vibration in the landing and taxing phases. First of all, the experimental model of the MR damper is derived based on the results of performance evaluations. Next, a simplified skyhook controller, which is one of the most straightforward, but effective approaches for improving ride comport in vehicles with active suspensions, is formulated. Then, the vibration control performances of the landing gear system using the MR damper are theoretically evaluated in the landing phase of the aircraft. A series of simulation analyses show that the proposed MR damper with the skyhook controller is effective for suppressing undesired vibration of the aircraft body. Finally, the effectiveness of the simulation results are additionally verified via HILS (Hardware-in-the-loop-simulation) method.

History of the nuclear matter safety and control law

International Nuclear Information System (INIS)

Dean, G.

1994-01-01

In this text we give the history of the law creation on the control and safety of nuclear matter. Initially based on the CEA regulation single owner of nuclear matter, the development of nuclear energy has conducted the French government to edict law in relation with IAEA and Euratom recommendations

Adaptive Landing Gear: Optimum Control Strategy and Potential for Improvement

Directory of Open Access Journals (Sweden)

Grzegorz Mikułowski

2009-01-01

Full Text Available An adaptive landing gear is a landing gear (LG capable of active adaptation to particular landing conditions by means of controlled hydraulic force. The objective of the adaptive control is to mitigate the peak force transferred to the aircraft structure during touch-down, and thus to limit the structural fatigue factor. This paper investigates the ultimate limits for improvement due to various strategies of active control. Five strategies are proposed and investigated numerically using a~validated model of a real, passive landing gear as a reference. Potential for improvement is estimated statistically in terms of the mean and median (significant peak strut forces as well as in terms of the extended safe sinking velocity range. Three control strategies are verified experimentally using a laboratory test stand.

Women and Land

International Development Research Centre (IDRC) Digital Library (Canada)

Women in many African countries have a legal right to own land, but ... And so, Banda says, “we've come to see that changing the law and the ... Because the people in charge ... women's insecure tenure, despite gender-neutral statutory laws.

Guidance Law and Neural Control for Hypersonic Missile to Track Targets

Directory of Open Access Journals (Sweden)

Wenxing Fu

2016-01-01

Full Text Available Hypersonic technology plays an important role in prompt global strike. Because the flight dynamics of a hypersonic vehicle is nonlinear, uncertain, and highly coupled, the controller design is challenging, especially to design its guidance and control law during the attack of a maneuvering target. In this paper, the sliding mode control (SMC method is used to develop the guidance law from which the desired flight path angle is derived. With the desired information as control command, the adaptive neural control in discrete time is investigated ingeniously for the longitudinal dynamics of the hypersonic missile. The proposed guidance and control laws are validated by simulation of a hypersonic missile against a maneuvering target. It is demonstrated that the scheme has good robustness and high accuracy to attack a maneuvering target in the presence of external disturbance and missile model uncertainty.

High-Alpha Research Vehicle Lateral-Directional Control Law Description, Analyses, and Simulation Results

Science.gov (United States)

Davidson, John B.; Murphy, Patrick C.; Lallman, Frederick J.; Hoffler, Keith D.; Bacon, Barton J.

1998-01-01

This report contains a description of a lateral-directional control law designed for the NASA High-Alpha Research Vehicle (HARV). The HARV is a F/A-18 aircraft modified to include a research flight computer, spin chute, and thrust-vectoring in the pitch and yaw axes. Two separate design tools, CRAFT and Pseudo Controls, were integrated to synthesize the lateral-directional control law. This report contains a description of the lateral-directional control law, analyses, and nonlinear simulation (batch and piloted) results. Linear analysis results include closed-loop eigenvalues, stability margins, robustness to changes in various plant parameters, and servo-elastic frequency responses. Step time responses from nonlinear batch simulation are presented and compared to design guidelines. Piloted simulation task scenarios, task guidelines, and pilot subjective ratings for the various maneuvers are discussed. Linear analysis shows that the control law meets the stability margin guidelines and is robust to stability and control parameter changes. Nonlinear batch simulation analysis shows the control law exhibits good performance and meets most of the design guidelines over the entire range of angle-of-attack. This control law (designated NASA-1A) was flight tested during the Summer of 1994 at NASA Dryden Flight Research Center.

Simulation on Change Law of Runoff, Sediment and Non-point Source Nitrogen and Phosphorus Discharge under Different Land uses Based on SWAT Model: A Case Study of Er hai Lake Small Watershed

Science.gov (United States)

Tong, Xiao Xia; Lai Cui, Yuan; Chen, Man Yu; Hu, Bo; Xu, Wen Sheng

2018-05-01

The Er yuan watershed of Er hai district is chosen as the research area, the law of runoff and sediment and non-point source nitrogen and phosphorus discharges under different land uses during 2001 to 2014 are simulated based on SWAT model. Results of simulation indicate that the order of total runoff yield of different land use type from high to low is grassland, paddy fields, dry land. Specifically, the order of surface runoff yield from high to low is paddy fields, dry land, grassland, the order of lateral runoff yield from high to low is paddy fields, dry land, grassland, the order of groundwater runoff yield from high to low is grassland, paddy fields, dry land. The orders of sediment and nitrogen and phosphorus yield per unit area of different land use type are the same, grassland> paddy fields> dry land. It can be seen, nitrogen and phosphorus discharges from paddy fields and dry land are the main sources of agricultural non-point pollution of the irrigated area. Therefore, reasonable field management measures which can decrease the discharge of nitrogen and phosphorus of paddy fields and dry land are the key to agricultural non-point source pollution prevention and control.

Kinematic feedback control laws for generating natural arm movements

International Nuclear Information System (INIS)

Kim, Donghyun; Jang, Cheongjae; Park, Frank C

2014-01-01

We propose a stochastic optimal feedback control law for generating natural robot arm motions. Our approach, inspired by the minimum variance principle of Harris and Wolpert (1998 Nature 394 780–4) and the optimal feedback control principles put forth by Todorov and Jordan (2002 Nature Neurosci. 5 1226–35) for explaining human movements, differs in two crucial respects: (i) the endpoint variance is minimized in joint space rather than Cartesian hand space, and (ii) we ignore the dynamics and instead consider only the second-order differential kinematics. The feedback control law generating the motions can be straightforwardly obtained by backward integration of a set of ordinary differential equations; these equations are obtained exactly, without any linear–quadratic approximations. The only parameters to be determined a priori are the variance scale factors, and for both the two-DOF planar arm and the seven-DOF spatial arm, a table of values is constructed based on the given initial and final arm configurations; these values are determined via an optimal fitting procedure, and consistent with existing findings about neuromuscular motor noise levels of human arm muscles. Experiments conducted with a two-link planar arm and a seven-DOF spatial arm verify that the trajectories generated by our feedback control law closely resemble human arm motions, in the sense of producing nearly straight-line hand trajectories, having bell-shaped velocity profiles, and satisfying Fitts Law. (paper)

43 CFR 422.5 - Responsibilities of the Law Enforcement Administrator.

Science.gov (United States)

2010-10-01

... 43 Public Lands: Interior 1 2010-10-01 2010-10-01 false Responsibilities of the Law Enforcement Administrator. 422.5 Section 422.5 Public Lands: Interior Regulations Relating to Public Lands BUREAU OF RECLAMATION, DEPARTMENT OF THE INTERIOR LAW ENFORCEMENT AUTHORITY AT BUREAU OF RECLAMATION PROJECTS Responsibilities § 422.5 Responsibilities of...

General Form of Model-Free Control Law and Convergence Analyzing

Directory of Open Access Journals (Sweden)

Xiuying Li

2012-01-01

Full Text Available The general form of model-free control law is introduced, and its convergence is analyzed. Firstly, the necessity to improve the basic form of model free control law is explained, and the functional combination method as the approach of improvement is presented. Then, a series of sufficient conditions of convergence are given. The analysis denotes that these conditions can be satisfied easily in the engineering practice.

Comprehensive review of the literature on institutional controls to limit land use

International Nuclear Information System (INIS)

1997-08-01

A literature search was conducted to identify case studies that would provide a basis for establishing the effective duration of institutional controls to limit land use and to identify the attributes that contribute to their effectiveness. The literature on a variety of active and passive institutional controls to limit land use on government lands and on private lands adjacent to government lands was reviewed. No case studies and little detailed information were found concerning the periods for which the institutional controls remained effective over the long-term or the aspects of the controls that contributed to their effectiveness in limiting land use. The information available in the literature is discussed and an extensive bibliography and recommendations regarding future work are provided. (author)

Comprehensive review of the literature on institutional controls to limit land use

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-08-01

A literature search was conducted to identify case studies that would provide a basis for establishing the effective duration of institutional controls to limit land use and to identify the attributes that contribute to their effectiveness. The literature on a variety of active and passive institutional controls to limit land use on government lands and on private lands adjacent to government lands was reviewed. No case studies and little detailed information were found concerning the periods for which the institutional controls remained effective over the long-term or the aspects of the controls that contributed to their effectiveness in limiting land use. The information available in the literature is discussed and an extensive bibliography and recommendations regarding future work are provided. (author).

Property rights and hierarchies of power: a critical evaluation of land-reform policy in South Africa

Directory of Open Access Journals (Sweden)

André van der Walt

1999-03-01

Full Text Available The programme of land reform laws introduced in South Africa since 1991 is often seen and discussed as nothing more than a highly technical, black-letter aspect of South African law. In this article, the author directs attention to the policies that underly the land reform laws, and discusses the transformative potential and effect of land reform laws in view of these policies. The main question is whether the land reform programme has succeeded in breaking away from or undermining the hierarchies of power that were inherent in traditional common-law property relationships and, particularly, in the politically sanctioned and statutorily entrenched system of apartheid land law. Through the analysis of the most important land reform laws the author concludes that the land reform programme is only partially successful in this regard, since many of the new laws still uphold or entrench the underlying hierarchies o f power that characterised apartheid land law.

Law No. 109/88, 26 September 1988.

Science.gov (United States)

1988-01-01

This Law establishes agrarian reform policy in Portugal. Its main goals are the improvement of the conditions of exploitation of the land; the economic, social, and cultural promotion of farmers and agricultural workers; the protection of their rights; the use of resources to increase agricultural production and productivity; and the protection of the environment, including the fertility of land. Special emphasis is given to consideration of regional ecological characteristics in efforts to maximize agricultural productivity. The Law also has as a goal the promotion of associational agricultural practices. To attain these goals, the Law provides for the expropriation and redistribution of land and introduces incentives designed to provide wide-ranging material support of agricultural activity and integrative measures, which deal with infrastructural development. Expropriation and redistribution of land are to be carried out according to procedures set forth in the Code of Expropriation. The Law, however, introduces the landowner's "right of reserve." Under this right, landowners may apply for the devolution of expropriated land, subject to the limit of 60 hectares per "right of reserve" or, alternately, to the limit of 91,000 productivity points, measured according to criteria of a land productivity schedule, regardless of the physical size of the area subject to expropriation. The "right of reserve" shall be apportioned among co-owners and legal successors of expropriated land. Procedures to be followed in determining the "right of reserve" are set forth in Regulating Decree No. 44/88, 14 December 1988 (Diario da Republica, Series I, No. 287, 14 December 1988, pp. 4915-6). full text

43 CFR 422.7 - Authorization to perform law enforcement duties.

Science.gov (United States)

2010-10-01

... 43 Public Lands: Interior 1 2010-10-01 2010-10-01 false Authorization to perform law enforcement duties. 422.7 Section 422.7 Public Lands: Interior Regulations Relating to Public Lands BUREAU OF RECLAMATION, DEPARTMENT OF THE INTERIOR LAW ENFORCEMENT AUTHORITY AT BUREAU OF RECLAMATION PROJECTS Program Requirements § 422.7 Authorization to perfor...

Indicators of the Legal Security of Indigenous and Community Lands. Data file from LandMark: The Global Platform of Indigenous and Community Lands.

NARCIS (Netherlands)

Tagliarino, Nicholas Korte

2016-01-01

L. Alden Wily, N. Tagliarino, Harvard Law and International Development Society (LIDS), A. Vidal, C. Salcedo-La Vina, S. Ibrahim, and B. Almeida. 2016. Indicators of the Legal Security of Indigenous and Community Lands. Data file from LandMark: The Global Platform of Indigenous and Community Lands.

Contract Law in a Comparative Perspective

OpenAIRE

Suharnoko, -

2012-01-01

The development of Indonesian contract law has been influenced by enacment of new law, court verdicts and legal practices. It has been influenced by civil law and common law systems applied in other countries as well. The enacment of Consumer Protection Act strenghtens position of consumers against profesional seller. The Basic Agrarian Law and its Implementation Laws improve certainty in ownership of land. Courts have recognized, the doctrine of undue influence, acceptance by conduct, but th...

Data Acquisition for Land Subsidence Control

Science.gov (United States)

Zhu, Y.; Balke, K.

2009-12-01

For controlling land subsidence caused by groundwater over-exploitation, loading of engineered structures, mining and other anthropogenic activities in this fast changing world, a large variety of different data of various scales of concerning areas are needed for scientific study and administrative operational purposes. The economical, social and environmental impacts of anthropogenic land subsidence have long been recognized by many scientific institutions and management authorities based on results of monitoring and analysis at an interdisciplinary level. The land subsidence information systems composed of the surface and subsurface monitoring nets (monitoring and development wells, GPS stations and other facilities) and local data processing centers as a system management tool in Shanghai City was started with the use of GPS technology to monitor land subsidence in 1998. After years of experiences with a set of initiatives by adopting adequate countermeasures, the particular attention given to new improved methodologies to monitor and model the process of land subsidence in a simple and timely way, this is going to be promoted in the whole Yangtze River Delta region in China, where land subsidence expands in the entire region of urban cluster. The Delta land subsidence monitoring network construction aims to establish an efficient and coordinated water resource management system. The land subsidence monitoring network records "living history" of land subsidence, produces detailed scheduled reports and environmental impact statements. For the different areas with local factors and site characteristics, parallel packages need to be designed for predicting changes, land sensitivity and uncertainty analysis, especially for the risk analysis in the rapid growth of megacities and urban areas. In such cases, the new models with new types of local data and the new ways of data acquisition provide the best information for the decision makers for their mitigating

3D Vision Based Landing Control of a Small Scale Autonomous Helicopter

Directory of Open Access Journals (Sweden)

Zhenyu Yu

2007-03-01

Full Text Available Autonomous landing is a challenging but important task for Unmanned Aerial Vehicles (UAV to achieve high level of autonomy. The fundamental requirement for landing is the knowledge of the height above the ground, and a properly designed controller to govern the process. This paper presents our research results in the study of landing an autonomous helicopter. The above-the-ground height sensing is based on a 3D vision system. We have designed a simple plane-fitting method for estimating the height over the ground. The method enables vibration free measurement with the camera rigidly attached on the helicopter without using complicated gimbal or active vision mechanism. The estimated height is used by the landing control loop. Considering the ground effect during landing, we have proposed a two-stage landing procedure. Two controllers are designed for the two landing stages respectively. The sensing approach and control strategy has been verified in field flight test and has demonstrated satisfactory performance.

Energy consumption reduction in existing HVAC-R systems via a power law controlling kit

International Nuclear Information System (INIS)

Pinnola, C.F.; Vargas, J.V.C.; Buiar, C.L.; Ordonez, J.C.

2015-01-01

This paper presents an alternative solution for reducing energy consumption in heating, ventilation, air conditioning and refrigeration (HVAC-R) systems. For that, an existing typical commercial refrigeration system was equipped with a novel control system based on a power law, using a frequency inverter and a programmable logic controller (PLC). Hence, it was possible to compare the operation and energy consumption of the system with the power law control and with the on-off system, quantifying the obtained gains. The experimental unit consisted of a cooling chamber, an enclosing chamber (antechamber), and a vapor compression refrigeration system, i.e., an example of a practical commercial cooling system. A set of graphs shows the experimental measurements performed with the two systems. In this way, the measured temperatures in some selected points of the two systems, as well as the consumption in kWh for a period of 6 h and 10 min were compared in the tests. The main conclusions of this work are: i) The system operating with the power law control with respect to the conventional on-off control, showed energy consumption savings of up to 31% in a test period of 6 h and 10 min, and ii) The system compressor cycling frequency in the system operating with the power law control is smaller than with the traditional on-off system. Therefore, the study shows that the developed power law control kit has potential to be installed in any existing system with immediate significant energy savings with no need for HVAC-R hardware changes. - Highlights: • An energy consumption reduction strategy for HVAC-R systems is presented. • Power law and on-off control actions are experimentally compared. • Energy savings of 31% were obtained with power law control. • Compressor cycling frequency is smaller with power law control. • Power law control kit has potential to be installed in any existing system

Introduction to planning law

International Nuclear Information System (INIS)

Ronellenfitsch, M.

1986-01-01

The author surveys the planning law in the Federal Republic of Germany. He deals with general regulations of the administrative procedure and land-use planning procedure and the main special rules of planning law, according to the Atomic Energy Act, the Nuclear Installation Ordinance and the Federal Act on the Protection against Nuisances. (WG) [de

Expropriation law in France

OpenAIRE

Melot, Romain

2015-01-01

In this publication, the editors present the first comparative overview of expropriation law in Europe covering 15 different jurisdictions. For many of the countries represented, this publication is the first English-language description of their national expropriation law. This survey provides a lot of information for all practitioners in the field of expropriation of land.

43 CFR 422.6 - Responsibilities of the Chief Law Enforcement Officer.

Science.gov (United States)

2010-10-01

... 43 Public Lands: Interior 1 2010-10-01 2010-10-01 false Responsibilities of the Chief Law Enforcement Officer. 422.6 Section 422.6 Public Lands: Interior Regulations Relating to Public Lands BUREAU OF RECLAMATION, DEPARTMENT OF THE INTERIOR LAW ENFORCEMENT AUTHORITY AT BUREAU OF RECLAMATION PROJECTS Responsibilities § 422.6 Responsibilities of...

Nuclear technology and the export control laws

International Nuclear Information System (INIS)

Munroe, J.L.; Pankratz, M.C.; Hogsett, V.H.; Lundy, A.S.

1988-01-01

Three basic US laws regulate the export of commodities, services, and technical data. People working in nuclear fields need to know of these laws and their impact on professional endeavors. Export of technical data means the communication of any information by oral, written, or any other means to foreign nationals within or outside the US. The medium for the communication may be a model, blueprint, sketch, or any other device that can convey information. If the data relates to items on one of the control lists, a license must be sought from the appropriated federal agency. The Militarily Critical Technologies List (MCTL), though not itself a control list, plays a major role in determining what technical data will require a validated license. The US Department of Energy (DOE), through Technical Working Gorup (TWG) 11, is responsible for the Nuclear Technology chapter of the MCTL. TWG 11 also prepares the Nuclear Technology Reference Book (NTRB), a classified guide to sensitive nuclear technology

Safety requirements laid down in the Atomic Energy Law and in the Law on Immission Control

International Nuclear Information System (INIS)

Hansmann, K.

1981-01-01

The paper deals with safety requirements relating to installations, laid down in the Atomic Energy Law and in the Law on Immission Control. Actually it is a matter of how the safety requirements of sect. 7 of the Atomic Energy Law can be compared with those laid down in the sections 5 and 6 of the Federal Act for the Protection Against Nuisances. In the process, three comparative levels are examined: 1. The normative conditions concerning the licencability of hazardous installations, 2. those demands that go way beyond that in order to reduce residual risks, and 3. the licensing authorities' scope of discretion. (orig./HP) [de

The Application of Human Rights Law to Everyday Life under Rebel Control

NARCIS (Netherlands)

Fortin, K.M.A.

2016-01-01

This article draws upon social science literature to offer a new assessment of the normative value of human rights law vis-à-vis international humanitarian law in territory under armed groups’ control. In particular, the article considers how the two bodies of law can be applied in a complementary

Comparing Interval Management Control Laws for Steady-State Errors and String Stability

Science.gov (United States)

Weitz, Lesley A.; Swieringa, Kurt A.

2018-01-01

Interval Management (IM) is a future airborne spacing concept that leverages avionics to provide speed guidance to an aircraft to achieve and maintain a specified spacing interval from another aircraft. The design of a speed control law to achieve the spacing goal is a key aspect in the research and development of the IM concept. In this paper, two control laws that are used in much of the contemporary IM research are analyzed and compared to characterize steady-state errors and string stability. Numerical results are used to illustrate how the choice of control laws gains impacts the size of steady-state errors and string performance and the potential trade-offs between those performance characteristics.

PUBLIC ACCESS TO PRIVATE LAND IN SCOTLAND

Directory of Open Access Journals (Sweden)

David L Carey Miller

2012-08-01

Full Text Available This article attempts to understand the radical reform of Scottish land law in its provision for a general right of public access to private land introduced in 2003 as part of land reform legislation, an important aspect of the initial agenda of the Scottish Parliament revived in 1999. The right is to recreational access for a limited period and the right to cross land. Access can be taken only on foot or by horse or bicycle. As a starting point clarification of the misunderstood pre-reform position is attempted. The essential point is that Scots common law does not give civil damages for a simple act of trespass (as English law does but only a right to obtain removal of the trespasser. Under the reforms the longstanding Scottish position of landowners allowing walkers access to the hills and mountains becomes a legal right. A critical aspect of the new right is that it is one of responsible access; provided a landowner co-operates with the spirit and system of the Act access can be denied on the basis that it is not being exercised responsibly. But the onus is on the landowner to show that the exercise of the right is not responsible.Although the right applies to all land a general exception protects the privacy of a domestic dwelling. Early case law suggests that the scope of this limit depends upon particular circumstances although reasonable 'garden ground' is likely to be protected. There are various particular limits such as school land.Compliance with the protection of property under the European Convention on Human Rights is discussed. The article emphasises the latitude, open to nations, for limitations to the right of ownership in land in the public interest. The extent of the Scottish access inroad illustrates this. This leads to the conclusion that 'land governance' – the subject of the Potchefstroom Conference at which the paper was initially presented – largely remains a matter for domestic law; the lex situs concept is alive

Digitally Controlled Converter with Dynamic Change of Control Law and Power Throughput

DEFF Research Database (Denmark)

Nesgaard, Carsten; Andersen, Michael Andreas E.; Nielsen, Nils

2003-01-01

the substitution of analog controllers with their digital counterparts are considered. The outline of the paper is divided into two segments – the first being an experimental analysis of the timing behavior by means of code optimization – the second being an examination of the dynamics of incorporating two control......With the continuous development of faster and cheaper microprocessors the field of applications for digital control is constantly expanding. Based on this trend the paper at hand describes the analysis and implementation of multiple control laws within the same controller. Also, implemented within...

Land Policy Changes and Land Redistribution in Ecuador

Directory of Open Access Journals (Sweden)

María Belén Albornoz Barriga

2016-12-01

Full Text Available This paper examines three distinct periods of policy change and land redistribution in Ecuador through the agrarian reform laws of 1964, 1973 and 2010. A comparative case study of each moment of the law reforms was based on the instruments and policy network approach. In order to explain public policy process design, the high incidence of collective domains led by agribusiness on government management, and the incidence of indigenous organizations and farmers over the state action.

Landing Control of Foot with Springs for Walking Robots on Rough Terrain

Directory of Open Access Journals (Sweden)

Moyuru Yamada

2009-09-01

Full Text Available Landing control is one of the important issues for biped walking robot, because robots are expected to walk on not only known flat surfaces but also unknown and uneven terrain for working at various fields. This paper presents a new controller design for a robotic foot to land on unknown terrain. The robotic foot considered in this study equips springs to reduce the impact force at the foot landing. There are two objectives in the landing control; achieving the desired ground reaction force and positioning the foot on unknown terrain. To achieve these two objectives simultaneously by adjusting the foot position, we propose a PI force controller with a desired foot position, which guarantees the robust stability of control system with respect to terrain variance, and exact positioning of the foot to unknown terrain. Simulation results using the Open Dynamics Engine demonstrate the effectiveness of the proposed controller.

Perils of project development on public land open to mining

International Nuclear Information System (INIS)

Jacobs, W.R.

1991-01-01

Conducting a government project on public land open to the general mining laws can result in added costs, legal entanglements, schedule uncertainties, and the potential for unanticipated safety issues and concerns due to interactions with mining claimants. Planning for such projects must include a careful assessment of not only land access needs and restrictions, but also possible scenarios for conflict with activities authorized under the general mining laws throughout the life of the project. It is essential to have a thorough knowledge of the applicable mining laws and how they are currently being interpreted and applied by the responsible regulatory authorities and land managers. The Yucca Mountain Project approach to land access, problems encountered with mining claims filed under the Mining Law of 1872, and the lessons learned from these experiences are discussed in this paper

THE METHODOLOGY USED TO INTERPRET CUSTOMARY LAND TENURE

Directory of Open Access Journals (Sweden)

Gerrit Pienaar

2012-09-01

Full Text Available Customary land tenure is normally not based on codified or statutory sources, but stems from customary traditions and norms. When westernised courts have to interpret and adjudicate these customary traditions and norms, the normal rules of statutory interpretation cannot be followed. The court has to rely on evidence of the traditional values of land use to determine the rules connected to land tenure.Previously courts in many mixed jurisdictions relied on common or civil law legal principles to determine the nature of customary land tenure and lay down the principles to adjudicate customary land disputes among traditional communities, or between traditional and westernised communities in the same jurisdiction. Many examples of such westernised approach can be found in case law of Canada and South Africa. The interpretation of the nature of customary land tenure according to common law or civil law principles has been increasingly rejected by higher courts in South Africa and Canada, e.g. in Alexkor Ltd v The Richtersveld Community 2004 5 SA 469 (CC and Delgamuukw v British Columbia 1997 3 SCR 1010. This paper explores the methodology the courts should follow to determine what the distinctive nature of customary land tenure is. As customary land tenure is not codified or based on legislation, the court has to rely, in addition to the evidence of indigenous peoples, on the expert evidence of anthropologists and sociologists in determining the nature of aboriginal title (in Canada and indigenous land tenure (in South Africa. The court must approach the rules of evidence and interpret the evidence with a consciousness of the special nature of aboriginal claims and the evidentiary difficulties in proving a right which originates in times where there were no written records of the practices, customs and traditions engaged in. The court must not undervalue the evidence presented simply because that evidence does not conform precisely with the

Investigating the Role of International Law in Controlling Communicable Diseases

Directory of Open Access Journals (Sweden)

Aliasghar Kheirkhah

2017-02-01

Full Text Available International law globally plays a key role in the surveillance and control of communicable diseases. Throughout the nineteenth century, international law played a dominant role in harmonizing the inconsistent national quarantine regulations of European nation states; facilitating the exchange of epidemiological information on infectious diseases; establishing international health organizations; and standardization of surveillance. Today, due to changed forms of infectious diseases and individuals' lifestyles as well as individuals' proximity caused by increased air travels, communicable diseases are in an international and cross-border form. In this regard, binding regulations and inconsistent rules adopted in international multilateral institutions like the World Health Organization, World Trade Organization, Food and Agriculture Organization can be of great use in surveillance and control of communicable diseases. With the globalization of public health, international law can be used as an essential tool in monitoring global health and reducing human vulnerability and mortality.

Evapotranspiration Power Law in Self-Organized and Human-Managed Ecosystems

Science.gov (United States)

Zeng, R.; Cai, X.

2017-12-01

Natural systems display a profound degree of self-organization, often apparent even to the untrained eye. However, in this age of increased coupling among human and natural systems, it is unclear to what degree natural organization principles continue to govern human-managed landscapes. Here we present an emerging characteristic of terrestrial evapotranspiration (ET), one of the key components of the water cycle and energy budget, adhered to by both naturally organized and intensively managed landscapes. We find that ET variance and ET mean for ecosystems throughout the world with diverse climate conditions, vegetation structures, and land covers and land uses organize themselves according to a specific power law curve. From multi-source observations, the ET power law curve stands true through varying spatial scales, from field to region. Moreover, a phenomenon of similar ecosystems gravitating toward particular segments of the power law curve, suggests that the feature of self-optimization of ecosystems establishes the ET power law together with climatic conditions. Perhaps surprisingly, we find that landscapes persistently follow the power law curve even upon human-induced transition from rain-fed to irrigated agriculture in the American High Plains and from wetland to agricultural land in American Midwest. As such, the ET power law can be an informative tool for predicting consequences of anthropogenic disturbances to the hydrologic cycle and understanding constraints to sustainable land use.

Optimization Based Clearance of Flight Control Laws A Civil Aircraft Application

CERN Document Server

Hansson, Anders; Puyou, Guilhem

2012-01-01

This book summarizes the main achievements of the EC funded 6th Framework Program project COFCLUO – Clearance of Flight Control Laws Using Optimization. This project successfully contributed to the achievement of a top-level objective to meet society’s needs for a more efficient, safer and environmentally friendly air transport by providing new techniques and tools for the clearance of flight control laws. This is an important part of the certification and qualification process of an aircraft – a costly and time-consuming process for the aeronautical industry.   The overall objective of the COFCLUO project was to develop and apply optimization techniques to the clearance of flight control laws in order to improve efficiency and reliability. In the book, the new techniques are explained and benchmarked against traditional techniques currently used by the industry. The new techniques build on mathematical criteria derived from the certification and qualification requirements together with suitable models...

Judicial control authority and third-party action as laid down in the Atomic Energy Law

International Nuclear Information System (INIS)

Degenhart, C.

1981-01-01

The author points out the fundamental complex of problems. From the 'undetermined' legal term of imperative prevention of damage as defined by Sect. 7 para. 2 (3) of the Atomic Energy Law follows the judicial claim for detailed analysis of facts in case of minor radioactive exposure under normal operation and in case of accident prevention. He discusses the relation of the Atomic Energy Law to the Basic Law and to the normative structure of the Atomic Energy Law. The re-orientation to be found in the judicial approach to control does recognize sanctuaries of the executive. Control density and the right of third parties to take action are closely interrelated. From the integration - according to subjective law and basic law - of the Atomic Energy Law into the realtionship existing between technological and cultural development, and the material relation of licences granted for nuclear installations follows a reduction of judicial control intensity, at least for the procedural constellation of third-party actions. (HSCH) [de

Intelligent landing strategy for the small bodies: from passive bounce to active trajectory control

Science.gov (United States)

Cui, Pingyuan; Liu, Yanjie; Yu, Zhengshi; Zhu, Shengying; Shao, Wei

2017-08-01

Landing exploration is an important way to improve the understanding of small bodies. Considering the weak gravity field as well as the strict attitude constraints which make bounce a common situation and a tough issue for safe landing on small bodies, a novel active trajectory control-based intelligent landing strategy is proposed to improve the safety and reliability of mission. The scenarios of intelligent landing strategy for both safe landing and hopping exploration are introduced in detail and a potential structure for autonomous navigation and control system is presented. Furthermore, a convex optimization-based control algorithm is developed, which is the key technology fulfilling the active trajectory control. Meanwhile a novel discretization method based on the fourth-order Runge-Kutta rule is proposed to improve the accuracy. A helpful adjustment process of time-to-landing is also introduced when the feasible trajectory does not exist. Comprehensive simulations about the proposed intelligent landing strategy are performed to demonstrate the improved safety and accuracy of both landing and hopping exploration on small bodies. Meanwhile, the performance and accuracy of the proposed convex optimization-based control algorithms is also compared and discussed thoroughly. Some useful conclusions for control system design are also obtained.

Regulatory systems for the control of land remediation processes

Energy Technology Data Exchange (ETDEWEB)

Lowe, J.; Vijgen, J.; Summersgill, M.

2003-07-01

One of the recurring themes in looking at land remediation over the last decade has been identifying and overcoming barriers to the use of innovative, sustainable technologies, whilst still ensuring that there are no adverse environmental impacts from their use. In parallel with this, the regeneration of brownfield sites has increasingly needed effective and economic solutions that leave the site without the stigma of being associated with contamination and waste disposal. Regulatory controls are often identified as one of the main barriers to both of these objectives. Previously, the focus of attention in the study of regulatory controls relating to land contamination has largely been on regimes that trigger the need for clean-up. These may be pollution control legislation or land-use planning controls. However, the focus of this paper will be on the controls on the selection and implementation of the remediation technologies and processes themselves. It will look in particular at the European-wide controls on waste management, pollution prevention and environmental impact assessment. The UK work is being carried out by a working group involving: landowners; developers; public sector regeneration agencies; house-builders; industry; insurers; technology providers; professional advisers; local government authorities; and national government regulators and policy-makers. This multi-stakeholder approach has facilitated the identification of practical, legal, financial and administrative issues to assist in developing new solutions. (orig.)

Compensation for Expropriated Community Farmland in Nigeria: An In-Depth Analysis of the Laws and Practices Related to Land Expropriation for the Lekki Free Trade Zone in Lagos

Directory of Open Access Journals (Sweden)

Nicholas K. Tagliarino

2018-02-01

Full Text Available In Nigeria, the recurring impoverishment and other negative socioeconomic impacts endured by landholders affected by expropriation are well-documented and call into question the Land Use Act’s (LUA effectiveness in protecting local land rights. The World Bank’s Land Governance Assessment Framework found that, in Nigeria, “a large number of acquisitions occurs without prompt and adequate compensation, thus leaving those losing land worse off, with no mechanism for independent appeal even though the land is often not utilized for a public purpose”. Such negative outcomes may be due to a number of factors, including corruption, limited capacity, and insufficient financing as well as Nigeria’s weak legal framework. According to a recent study of compensation procedures established in national laws of 50 countries, Nigeria’s compensation procedure lags behind many of the countries assessed because the LUA mostly fails to adopt international standards on the valuation of compensation. This article examines Nigerian expropriation and compensation procedures in more detail by combining both an in-depth legal analysis of Nigeria’s expropriation laws as well as survey and qualitative research that indicates, to some extent, how expropriation laws function in practice in Nigeria. Based on our legal assessment, surveys, and interviews with both government and private sector officials involved in the LFTZ, we found that the Nigerian government failed to comply with international standards on expropriation and compensation, both in terms of its laws and its practices in the LFTZ case. This article expands our conference paper written for UN Economic Commission of Africa Conference on Land Policy in Africa, which took place in Addis Ababa, Ethiopia in November of 2017. Under Nigeria’s LUA, affected landholders are not granted the right to participate in expropriation and compensation decision-making or otherwise be consulted on matters

A Coordinated Approach to Food Safety and Land Use Law at the Urban Fringe.

Science.gov (United States)

Miller, Stephen R

2015-01-01

Much has been written about the rise of the local food movement in urban and suburban areas. This essay tackles an emerging outgrowth of that movement: the growing desire of urban and suburban dwellers to engage rural areas where food is produced not only to obtain food but also as a means of tourism and cultural activity. This represents a potentially much-needed means of economic development for rural areas and small farmers who are increasingly dependent on non-farm income for survival. The problem, however, is that food safety and land use laws struggle to keep up with these changes, waffling between over-regulation and de-regulation. This essay posits a legal path forward to steer clear of regulatory extremes and to help the local food movement grow and prosper at the urban fringe. We must cultivate our garden.

Land use and energy

Energy Technology Data Exchange (ETDEWEB)

Robeck, K.E.; Ballou, S.W.; South, D.W.; Davis, M.J.; Chiu, S.Y.; Baker, J.E.; Dauzvardis, P.A.; Garvey, D.B.; Torpy, M.F.

1980-07-01

This report provides estimates of the amount of land required by past and future energy development in the United States and examines major federal legislation that regulates the impact of energy facilities on land use. An example of one land use issue associated with energy development - the potential conflict between surface mining and agriculture - is illustrated by describing the actual and projected changes in land use caused by coal mining in western Indiana. Energy activities addressed in the report include extraction of coal, oil, natural gas, uranium, oil shale, and geothermal steam; uranium processing; preparation of synfuels from coal; oil refineries; fossil-fuel, nuclear, and hydro-electric power plants; biomass energy farms; and disposal of solid wastes generated during combustion of fossil fuels. Approximately 1.1 to 3.3 x 10/sup 6/ acres were devoted to these activities in the United States in 1975. As much as 1.8 to 2.0 x 10/sup 6/ additional acres could be required by 1990 for new, nonbiomass energy development. The production of grain for fuel ethanol could require an additional 16.9 to 55.7 x 10/sup 6/ acres by 1990. Federal laws that directly or indirectly regulate the land-use impacts of energy facilities include the National Environmental Protection Act, Clean Air Act, Federal Water Pollution Control Act, Surface Mining Control and Reclamation Act, and Coastal Zone Management Act. The major provisions of these acts, other relevant federal regulations, and similar state and local regulatons are described in this report. Federal legislation relating to air quality, water quality, and the management of public lands has the greatest potential to influence the location and timing of future energy development in the United States.

Land use and energy

International Nuclear Information System (INIS)

Robeck, K.E.; Ballou, S.W.; South, D.W.; Davis, M.J.; Chiu, S.Y.; Baker, J.E.; Dauzvardis, P.A.; Garvey, D.B.; Torpy, M.F.

1980-07-01

This report provides estimates of the amount of land required by past and future energy development in the United States and examines major federal legislation that regulates the impact of energy facilities on land use. An example of one land use issue associated with energy development - the potential conflict between surface mining and agriculture - is illustrated by describing the actual and projected changes in land use caused by coal mining in western Indiana. Energy activities addressed in the report include extraction of coal, oil, natural gas, uranium, oil shale, and geothermal steam; uranium processing; preparation of synfuels from coal; oil refineries; fossil-fuel, nuclear, and hydro-electric power plants; biomass energy farms; and disposal of solid wastes generated during combustion of fossil fuels. Approximately 1.1 to 3.3 x 10 6 acres were devoted to these activities in the United States in 1975. As much as 1.8 to 2.0 x 10 6 additional acres could be required by 1990 for new, nonbiomass energy development. The production of grain for fuel ethanol could require an additional 16.9 to 55.7 x 10 6 acres by 1990. Federal laws that directly or indirectly regulate the land-use impacts of energy facilities include the National Environmental Protection Act, Clean Air Act, Federal Water Pollution Control Act, Surface Mining Control and Reclamation Act, and Coastal Zone Management Act. The major provisions of these acts, other relevant federal regulations, and similar state and local regulatons are described in this report. Federal legislation relating to air quality, water quality, and the management of public lands has the greatest potential to influence the location and timing of future energy development in the United States

Contract Law in a Comparative Perspective

Directory of Open Access Journals (Sweden)

- Suharnoko

2012-05-01

Full Text Available The development of Indonesian contract law has been influenced by enacment of new law, court verdicts and legal practices. It has been influenced by civil law and common law systems applied in other countries as well. The enacment of Consumer Protection Act strenghtens position of consumers against profesional seller. The Basic Agrarian Law and its Implementation Laws improve certainty in ownership of land. Courts have recognized, the doctrine of undue influence, acceptance by conduct, but they have not recognized pre contractual liability and have not applied the doctrine of unjustified enrichment in disputes regarding illegal contract. As practical matter, the integration clause under common law system stipulated in contract governed by Indonesian law, whereas Internasional Convention on Sale of Good regarding this issue adopts civil law system.

The Preventive Effect of Strict Gun Control Laws on Suicide and Homicide.

Science.gov (United States)

Lester, David; Murrell, Mary E.

1982-01-01

Examined state gun control laws and used a multidimensional scaling technique to study the relationship of strictness and death rates. Results showed states with stricter laws had lower suicide rates by firearms but higher rates by other means. No effect on homicide was found. (JAC)

Design Specification for a Thrust-Vectoring, Actuated-Nose-Strake Flight Control Law for the High-Alpha Research Vehicle

Science.gov (United States)

Bacon, Barton J.; Carzoo, Susan W.; Davidson, John B.; Hoffler, Keith D.; Lallman, Frederick J.; Messina, Michael D.; Murphy, Patrick C.; Ostroff, Aaron J.; Proffitt, Melissa S.; Yeager, Jessie C.;

Groundwater management in land administration : A spatio-temporal perspective

NARCIS (Netherlands)

Ghawana, T.; Hespanha, J.P.; Zevenbergen, J.A.; Van Oosterom, P.J.M.

2010-01-01

Although the use of land and water is intertwined, specifics for groundwater management are not effectively dealt with in the laws and other institutional mechanisms related to land. Provisions for groundwater aspects in land management are there, but with a focus on the land itself. Land rights and

Use of ILTV Control Laws for LaNCETS Flight Research

Science.gov (United States)

Moua, Cheng

2010-01-01

A report discusses the Lift and Nozzle Change Effects on Tail Shock (LaNCETS) test to investigate the effects of lift distribution and nozzle-area ratio changes on tail shock strength of an F-15 aircraft. Specific research objectives are to obtain inflight shock strength for multiple combinations of nozzle-area ratio and lift distribution; compare results with preflight prediction tools; and update predictive tools with flight results. The objectives from a stability and control perspective are to ensure adequate aircraft stability for the changes in lift distribution and plume shape, and ensure manageable transient from engaging and disengaging the ILTV research control laws. In order to change the lift distribution and plume shape of the F-15 aircraft, a decade-old Inner Loop Thrust Vectoring (ILTV) research control law was used. Flight envelope expansion was performed for the test configuration and flight conditions prior to the probing test points. The approach for achieving the research objectives was to utilize the unique capabilities of NASA's NF-15B-837 aircraft to allow the adjustment of the nozzle-area ratio and/or canard positions by engaging the ILTV research control laws. The ILTV control laws provide the ability to add trim command biases to canard positions, nozzle area ratios, and thrust vectoring through the use of datasets. Datasets consist of programmed test inputs (PTIs) that define trims to change the nozzle-area ratio and/or canard positions. The trims are applied as increments to the normally commanded positions. A LaNCETS non-linear, six-degrees-of-freedom simulation capable of realtime pilot-in-the-loop, hardware-in-the-loop, and non-real-time batch support was developed and validated. Prior to first flight, extensive simulation analyses were performed to show adequate stability margins with the changes in lift distribution and plume shape. Additionally, engagement/disengagement transient analysis was also performed to show manageable

Sliding Mode Tracking Control of Manipulator Based on the Improved Reaching Law

Directory of Open Access Journals (Sweden)

Wei-Na ZHAI

2013-04-01

Full Text Available Due to the mechanical hand often have serious uncertainty, as the state in which the different and external changes, also its parameters are changing, this is very adverse to achieve precise control. In this paper, the traditional sliding mode variable structure was improved, the sign function is replaced by saturated function based on the double power reaching law, by adjusting the values of e1, e2, a, b, g and k to effectively improve the manipulator joint reaching speed, track expected trajectory fast and shorten the system response time. Finally, the method is used for simulation of manipulator trajectory tracking, compared to two reaching law control algorithms. The simulation results show that the control algorithm has good dynamic performance, which can effectively restrain the chattering and quickly track the desired trajectory. Therefore, the improved reaching law can effectively improve the performance of robotic manipulator.

Decree-Law No. 199/88, 31 May 1988.

Science.gov (United States)

1988-01-01

This Decree-Law establishes criteria for the determination of final compensation for expropriation or nationalization of land or agricultural capital. The lack of legal definition of criteria for the determination of such final compensation was a gap in recent Portuguese legislation on land reform. Although the holdings of many landlords and farmers had been nationalized or expropriated after 11 March 1975, the compensation obtained prior to the enactment of this Decree-Law was provisional and reflected outdated values. This Decree-Law closes this gap by establishing the criteria for the determination of final compensation with adjusted value. Under it, any farmer whose land or capital has been nationalized or expropriated since March 1975 may apply for final compensation, from which shall be deducted the value of any provisional compensation previously obtained and any property previously devolved as a "right of reserve" pursuant to pertinent legislation (see Law No. 109/88 of 26 September 1988 and Decree No. 44/88 of 14 December 1988). The final compensation shall be determined by administrative procedure in which the Ministry of Agriculture, Fisheries, and Food; the Ministry of Finance; and the applicant are represented. full text

Approach and landing guidance design for reusable launch vehicle using multiple sliding surfaces technique

Directory of Open Access Journals (Sweden)

Xiangdong LIU

2017-08-01

Full Text Available An autonomous approach and landing (A&L guidance law is presented in this paper for landing an unpowered reusable launch vehicle (RLV at the designated runway touchdown. Considering the full nonlinear point-mass dynamics, a guidance scheme is developed in three-dimensional space. In order to guarantee a successful A&L movement, the multiple sliding surfaces guidance (MSSG technique is applied to derive the closed-loop guidance law, which stems from higher order sliding mode control theory and has advantage in the finite time reaching property. The global stability of the proposed guidance approach is proved by the Lyapunov-based method. The designed guidance law can generate new trajectories on-line without any specific requirement on off-line analysis except for the information on the boundary conditions of the A&L phase and instantaneous states of the RLV. Therefore, the designed guidance law is flexible enough to target different touchdown points on the runway and is capable of dealing with large initial condition errors resulted from the previous flight phase. Finally, simulation results show the effectiveness of the proposed guidance law in different scenarios.

African Indigenous Land Rights in a Private Ownership Paradigm

Directory of Open Access Journals (Sweden)

WJ Du Plessis

2011-12-01

Full Text Available It is often stated that indigenous law confers no property rights in land. Okoth-Ogenda reconceptualised indigenous land rights by debunking the myth that indige-nous land rights systems are necessarily "communal" in nature, that "ownership" is collective and that the community as an entity makes collective decisions about the access and use of land.1 He offers a different understanding of indigenous land rights systems by looking at the social order of communities that create "reciprocal rights and obligations that this binds together, and vests power in the community members over land". To determine who will be granted access to or exercise control over land and the resources, one needs to look at these rights and obligations and the performances that arise from them. This will leave only two distinct questions: who may have access to the land (and what type of access2 and who may control and manage the land resources on behalf of those who have access to it?3There is a link with this reconceptualisation and the discourse of the commons. Os-trom's classification of goods leads to a definition of the commons (or common pool of resources as "a class of resources for which exclusion is difficult and joint use in-volves subtractablity".4 The questions this article wishes to answer are: would it firstly be possible to classify the indigenous land rights system as a commons, and sec-ondly would it provide a useful analytical framework in which to solve the problem of securing land tenure in South Africa?

43 CFR 422.9 - Reclamation law enforcement contracts and cooperative agreements.

Science.gov (United States)

2010-10-01

... 43 Public Lands: Interior 1 2010-10-01 2010-10-01 false Reclamation law enforcement contracts and... PROJECTS Program Requirements § 422.9 Reclamation law enforcement contracts and cooperative agreements. (a... Federal laws. (b) Each contract and cooperative agreement authorizing the exercise of Reclamation law...

Impacts of Deflection Nose on Ballistic Trajectory Control Law

Directory of Open Access Journals (Sweden)

Bo Zhang

2014-01-01

Full Text Available The deflection of projectile nose is aimed at changing the motion of the projectile in flight with the theory of motion control and changing the exterior ballistics so as to change its range and increase its accuracy. The law of external ballistics with the deflectable nose is considered as the basis of the design of a flight control system and an important part in the process of projectile development. Based on the existing rigid external ballistic model, this paper establishes an external ballistic calculation model for deflectable nose projectile and further establishes the solving programs accordingly. Different angle of attack, velocity, coefficients of lift, resistance, and moment under the deflection can be obtained in this paper based on the previous experiments and emulation researches. In the end, the author pointed out the laws on the impaction of external ballistic trajectory by the deflection of nose of the missile.

75 FR 77658 - Public Land Order No. 7755; Withdrawal of Public Lands and Reserved Federal Minerals for the Ash...

Science.gov (United States)

2010-12-13

... mining laws (30 U.S.C. Ch. 2), and jurisdiction is transferred to the U.S. Fish and Wildlife Service for... mining laws, and 5,570.02 acres of reserved Federal minerals from location under the mining laws, subject.... This order also transfers jurisdiction of the public lands within the Ash Meadows National Wildlife...

The Degree of Court's Control on Arbitration under the Ethiopian Law

African Journals Online (AJOL)

The Degree of Court's Control on Arbitration under the Ethiopian Law: Is It to the ... C)) reveals that courts in Ethiopia control arbitration by such avenues as appeal, ... all overlook the avenue of refusal, particularly in terms of domestic awards.

Collective Land Ownership in the 21st Century: Overview of Global Trends

Directory of Open Access Journals (Sweden)

Liz Alden Wily

2018-05-01

Full Text Available Statutory recognition of rural communities as collective owners of their lands is substantial, expanding, and an increasingly accepted element of property relations. The conventional meaning of property in land itself is changing, allowing for a greater diversity of attributes without impairing legal protection. General identified trends include: (1 declining attempts to deny that community lands are property on the grounds that they may not be sold or are owned collectively; (2 increased provision for communities to be registered owners to the same degree as individual and corporate persons; (3 a rise in number of laws catering specifically to the identification, registration and governance of community property; and (4 in laws that acknowledge that community property may exist whether or not it has been registered, and that registration formalizes rather than creates property in these cases. The research examined the laws of 100 countries to ascertain the status of lands which social communities, either traditionally or in more contemporary arrangements, deem to be their own. Sampling is broadly consistent with numbers of countries per region. The constitutions of all 100 countries were examined. The land laws of 61 countries were scrutinized. Secondary sources were used for 39 countries, mainly due to laws not being available in English. The main secondary source used was LandMark, whose data is publicly available at www.landmarkmap.org.

76 FR 23230 - Segregation of Lands-Renewable Energy

Science.gov (United States)

2011-04-26

... right-of-way project, and the topography of the property involved. The number of mining claims would... land laws, including location under the Mining Law of 1872 (Mining Law), but not the Mineral Leasing...., including for mining and energy development. In some instances, different uses may present conflicts. For...

Law No. 30 modifying and amending Laws No. 135 of 1961, 1a of 1968, and 4a of 1973 and conferring certain competencies on the President of the Republic, 18 March 1988.

Science.gov (United States)

1988-01-01

This Law and regulatory Decree No. 2017 of 12 October 1988 (Diario Oficial, No. 38531, 12 October 1988, pp. 1-7) establish new procedures for the distribution of rural land in Colombia. A major aspect of these laws is the incorporation of the National Council of Economic and Social Policy (CONPES) into the planning and control of the agriculture reform scheme. According to these regulations, the Colombian Institute for Agriculture Reform (INCORA) will be in charge of the creation of the Annual Plan of Activities which establishes the regions subject to a land distribution plan under the supervision of CONPES. Once the Annual Plan of Activities is formulated, the regulations authorize INCORA to negotiate directly with the owners of the lands covered by the regional plan. For this purpose, the land is subject to technical analysis consisting of an on-site visit during which the quality, improvement, and value of the machinery attached to the land are assessed. After the analysis is completed, an offer will be made to the owner, who has a period of 15 days to accept or reject it. If the offer is rejected, INCORA will initiate an expropriation proceeding. Payment will be made in government bonds, maturing in five years. The owners have a right to seek the exclusion of their lots from regional plans. A second major aspect of these laws is that their objectives include not only the redistribution of the land but also the creation of adequate infrastructure for the development of regions subject to agrarian reform. Projects for the construction of railroads or other means of transportation, public service facilities, and cultural centers will be carried out keeping in mind the principle that respect for environmental concerns be maintained. full text

Data adaptive control parameter estimation for scaling laws

Energy Technology Data Exchange (ETDEWEB)

Dinklage, Andreas [Max-Planck-Institut fuer Plasmaphysik, Teilinstitut Greifswald, Wendelsteinstrasse 1, D-17491 Greifswald (Germany); Dose, Volker [Max-Planck- Institut fuer Plasmaphysik, Boltzmannstrasse 2, D-85748 Garching (Germany)

2007-07-01

Bayesian experimental design quantifies the utility of data expressed by the information gain. Data adaptive exploration determines the expected utility of a single new measurement using existing data and a data descriptive model. In other words, the method can be used for experimental planning. As an example for a multivariate linear case, we apply this method for constituting scaling laws of fusion devices. In detail, the scaling of the stellarator W7-AS is examined for a subset of {iota}=1/3 data. The impact of the existing data on the scaling exponents is presented. Furthermore, in control parameter space regions of high utility are identified which improve the accuracy of the scaling law. This approach is not restricted to the presented example only, but can also be extended to non-linear models.

Case law

International Nuclear Information System (INIS)

2017-01-01

This section treats of the following case laws (United States): 1 - Virginia Uranium, Inc. v. Warren, 848 F.3d 590 (4. Cir. 2017): In the United States District Court for the Western District of Virginia, the plaintiffs, a collection of uranium mining companies and owners of land containing uranium deposits, challenged a Commonwealth of Virginia moratorium on conventional uranium mining. The plaintiffs alleged that the state moratorium was preempted by federal law under the Supremacy Clause of the US Constitution.; 2 - United States v. Energy Solutions, Inc.; Rockwell Holdco, Inc.; Andrews County; Holdings, Inc.; and Waste Control Specialists, LLC. (D. Del. June 21, 2017): In 2016, the United States, acting through the US Department of Justice, commenced an action in United States District Court in Delaware seeking to enjoin the acquisition of Waste Control Specialists, LLC (WCS) and its parent company by Energy Solutions, Inc., and its parent. WCS and Energy Solutions are competitors in the market for the disposal of low-level radioactive waste (LLRW) produced by commercial generators of such material. The United States alleged that the proposed acquisition was unlawful. 3 - Cooper v. Tokyo Electric Power Company, No. 15-56426 (9. Cir. 2017): The plaintiffs are US Navy service members who were deployed off the Japanese coast as part of the US effort to provide earthquake relief after the 9.0 earthquake and tsunami that struck Japan on 11 March 2011. Plaintiffs sued alleging 'that TEPCO was negligent in operating the Fukushima Daiichi Nuclear Power Plant and in reporting the extent of the radiation leak

The Inverse System Method Applied to the Derivation of Power System Non—linear Control Laws

Institute of Scientific and Technical Information of China (English)

DonghaiLI; XuezhiJIANG; 等

1997-01-01

The differential geometric method has been applied to a series of power system non-linear control problems effectively.However a set of differential equations must be solved for obtaining the required diffeomorphic transformation.Therefore the derivation of control laws is very complicated.In fact because of the specificity of power system models the required diffeomorphic transformation may be obtained directly,so it is unnecessary to solve a set of differential equations.In addition inverse system method is equivalent to differential geometric method in reality and not limited to affine nonlinear systems,Its physical meaning is able to be viewed directly and its deduction needs only algebraic operation and derivation,so control laws can be obtained easily and the application to engineering is very convenient.Authors of this paper take steam valving control of power system as a typical case to be studied.It is demonstrated that the control law deduced by inverse system method is just the same as one by differential geometric method.The conclusion will simplify the control law derivations of steam valving,excitation,converter and static var compensator by differential geometric method and may be suited to similar control problems in other areas.

Arms control and the rule of law

International Nuclear Information System (INIS)

Tanzman, E.A.

1995-01-01

Many who speak of the end of the Cold War emphasize the warming of international relations when they speak of the momentous consequences of this event. According to this image, the half century since Trinity has been a period of sparse international communication during which the Eastern and Western blocs hibernated in their isolated dens of security alliances. Yet it is equally valid to consider the implications of the end of the war footing that has underlain the policies of all of the major military powers during the last fifty years. While meaningful international dialogue was in a state of relative lethargy during much of this period, the military establishments of the Great Powers were actively engaged in using as much force as possible in their efforts to control world affairs, short of triggering a nuclear holocaust. International discourse, at least in English, was rife with such military images as appeasement, containment, crisis stability, and tripwires. From the military posture of the U.S. and Russia a tense peace ironically emerged, but the terms by which decisions were made about controlling weapons of mass destruction (i.e., nuclear, chemical, and biological weapons) were the terms of war. The thesis of this paper is that the end of the Cold War marks a shift away from reliance on military might toward an international commitment to control weapons of mass destruction through the rule of law developed by John Rawls. The progression of agreements during this century to limit weapons of mass destruction testifies to this new development. A review of arms control agreements that the U.S. is a part of show clear growth of the rule of law as the world has left the Cold War

Arms control and the rule of law

Energy Technology Data Exchange (ETDEWEB)

Tanzman, E.A.

1995-03-01

Many who speak of the end of the Cold War emphasize the warming of international relations when they speak of the momentous consequences of this event. According to this image, the half century since Trinity has been a period of sparse international communication during which the Eastern and Western blocs hibernated in their isolated dens of security alliances. Yet it is equally valid to consider the implications of the end of the war footing that has underlain the policies of all of the major military powers during the last fifty years. While meaningful international dialogue was in a state of relative lethargy during much of this period, the military establishments of the Great Powers were actively engaged in using as much force as possible in their efforts to control world affairs, short of triggering a nuclear holocaust. International discourse, at least in English, was rife with such military images as appeasement, containment, crisis stability, and tripwires. From the military posture of the U.S. and Russia a tense peace ironically emerged, but the terms by which decisions were made about controlling weapons of mass destruction (i.e., nuclear, chemical, and biological weapons) were the terms of war. The thesis of this paper is that the end of the Cold War marks a shift away from reliance on military might toward an international commitment to control weapons of mass destruction through the rule of law developed by John Rawls. The progression of agreements during this century to limit weapons of mass destruction testifies to this new development. A review of arms control agreements that the U.S. is a part of show clear growth of the rule of law as the world has left the Cold War.

Perancangan Autonomous Landing pada Quadcopter Menggunakan Behavior-Based Intelligent Fuzzy Control

Directory of Open Access Journals (Sweden)

Chalidia Nurin Hamdani

2013-09-01

Full Text Available Quadcopter adalah salah satu platform unmanned aerial vehicle (UAV yang saat ini banyak diriset karena kemampuannya melakukan take-off dan landing secara vertikal. Karena menggunakan 4 motor brushless sebagai penggerak utama, quadcopter memiliki kompleksitas yang cukup tinggi baik dalam pemodelan maupun pengendalian. Landing merupakan salah satu mekanisme pada quadcopter yang membutuhkan kecepatan yang akurat dan aman dengan tetap mempertahankan keseimbangan. Pada penelitian ini, penulis menggunakan Behavior-Based Intelligent Fuzzy Control (BBIFC sebagai dasar kontrol untuk penerapan autonomous landing pada quadcopter. BBIFC adalah salah satu skema high-level control di mana desain kontrol terdiri dari beberapa layer. Ada 2 layer yang digunakan pada penelitian ini yaitu layer untuk pengendalian sudut pitch, roll, yaw dan layer untuk pengendalian ketinggian. Setiap layer memiliki mekanisme kontrol yang berbeda yang didesain menggunakan Intelligent Fuzzy Controller dan kontroler PID. Dengan metode ini dihasilkan algoritma untuk mekanisme safe autonomous landing dengan mengikuti sinyal eksponensial di mana quadcopter mencapai titik 0 (nol meter dalam waktu 15 detik dan Kontroler PID dapat mengendalikan keseimbangan quadcopter dalam waktu 7.97 detik untuk roll dan pitch serta 1.25 detik untuk yaw sejak gangguan sudut diberikan.

An Integrated Approach to Aircraft Modelling and Flight Control Law Design

NARCIS (Netherlands)

Looye, G.H.N.

2008-01-01

The design of flight control laws (FCLs) for automatic and manual (augmented) control of aircraft is a complicated task. FCLs have to fulfil large amounts of performance criteria and must work reliably in all flight conditions, for all aircraft configurations, and in adverse weather conditions.

At the Intersection between Expropriation Law and Administrative Law: Two Critical Views on the Constitutional Court's Arun Judgment

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Ernst Jacobus Marais

2016-08-01

Full Text Available In Arun the Constitutional Court held that section 28 of the Land Use Planning Ordinance (LUPO vests all land indicated as public roads on a development plan in the local authority upon approval of such a plan. This includes land that is in excess of the normal need of the development. The appellant must hence be compensated for the "expropriation" of such excess land if the provision is to comply with section 25(2 of the Constitution. This ruling is problematic for both expropriation law and administrative law. In terms of section 25(2 four objections may be raised against the Arun decision. Firstly, it disregards the function of the public interest requirement for expropriation, as understood in view of the law-of-general-application requirement (which, in turn, is informed by the legality principle. The state cannot expropriate property for purposes that are ultra vires (or ulterior to the authorising legislation. Yet the Arun court seems to allow just this by permitting the local authority to acquire land unrelated to the normal need of the development against payment of compensation instead of setting the attempted expropriation aside. The judgment, secondly, ignores the role of compensation under section 25(2. Merely paying compensation to an affected party cannot turn an invalid expropriation into a valid one, since compensation is merely the result of a valid expropriation and not a justification for it. Thirdly, it makes the distinction between deprivation and expropriation pivot on the effect of the property limitation, which is unable to properly distinguish between these two forms of limitation in all instances. Finally, Moseneke DCJ's ruling seems to afford an election to litigants who are affected by materially defective expropriations to choose whether to accept the expropriation and claim compensation or to have it reviewed and set aside under PAJA. This election, if it indeed exists, subverts the principles of expropriation law

Land lease contract and prior right of lessee to concluding the new land lease contract - case of Slovakia

Directory of Open Access Journals (Sweden)

Anna Bandlerová

2016-12-01

Full Text Available Land lease is one of the few possible ways to use the agricultural land effectively. This is caused by problems in the proprietary and user relationships, therefore the agricultural land lease and its legal regulation is especially important for Slovakia. This paper deals with the selected legal arrangements related to the agricultural land lease in Slovakia with an objective to identify application problems faced by lessees and lessors of agricultural land. When regulating the agricultural land lease relationships, the Slovak law maker prefers dispositive legal norms. However, this method is rarely used in the application practice. Contracting parties often focus only on obligatory characters of the contract, relying on the legal text of dispositive provisions. The legal arrangement of the lessee’s prior right to sign the new lease contract attracts a particular attention. Current legal regulation of this lessee’s right seems to be unenforceable; on the other hand, it collides with the basic human rights. This provision needs to be either cancelled or adjusted so that it achieves the objective defined by the law maker and so that it is legally enforceable in compliance with superior legal norms.

Mining law and energy law in the context of today's most urgent problems

International Nuclear Information System (INIS)

Hueffer, U.; Ipsen, K.; Tettinger, P.J.

1989-01-01

Present mining law and energy law is discussed in 29 papers. Fundamental aspects of legal policy are discussed from the view of the Federal Government and of the Land of Nordrhein-Westfalen. Among the subjects discussed are: Property rights and mining; brown coal projecting; instruments for the promotion of power generation from coal; law on mining damage, industrial safety, and social security. There are several papers on legal problems of power supply, e.g. the autonomy of public utilities, the construction of power supply networks, the utilisation of renewable energy sources, waste incineration, and court decisions in the nuclear licensing procedure. There is a section on international law and a comparison of legal regulations, comprising: legal measures and standards within the IAEA; organisation and tasks of the IEA, energy law and energy policy of the USA, Japan, Great Britain, France, and the COMECON states (the latter referred to the production of energy sources and the electric power generation capacity). (orig./HP) [de

Implementation Strategy for Land Administration in Mozambique

NARCIS (Netherlands)

Joaquim, S.; Carvalho, J.A.; Marques, M.R.; Carrilho, J.; Balas, M.; Lemmen, C.H.J.; Unger, E.-M.; Tomberg, M.

2018-01-01

Land administration inMozambique needs to become less bureaucratic, simpler, cheaper and more transparent. Design and implementation of traditional approaches is so time consuming that land laws are to be adapted to provide for simpler procedures. Delivery of results (maps, DUATs, spatial plans)

Mizan Law Review - Vol 5, No 2 (2011)

African Journals Online (AJOL)

Mizan Law Review - Vol 5, No 2 (2011) ... Ethiopian Law of International Carriage by Air: An Overview · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT ... Comment: Overview of the Core Changes in the New Ethiopian Urban Land Leasehold Proclamation · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT

The Community Land Act in Kenya Opportunities and Challenges for Communities

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Liz Alden Wily

2018-01-01

Full Text Available Kenya is the most recent African state to acknowledge customary tenure as producing lawful property rights, not merely rights of occupation and use on government or public lands. This paper researches this new legal environment. This promises land security for 6 to 10 million Kenyans, most of who are members of pastoral or other poorer rural communities. Analysis is prefaced with substantial background on legal trends continentally, but the focus is on Kenya’s Community Land Act, 2016, as the framework through which customary holdings are to be identified and registered. A main conclusion is that while Kenya’s law is positive and even cutting-edge in respects, legal loopholes place communities at risk of their lands not being as secure as promised ahead of formalization, and at risk of losing some of their most valuable lands during the formalization process. This is mainly due to overlapping claims by the national and local government authorities. Political will to apply the law is also weak. The truism that the law is never enough on its own to secure social change is illustrated. With or without legal protection, the assistance of non-state actors will be needed to help communities secure their lands under formal collective entitlements. The need for judicial interpretation of disputed legal provisions may also be required to ensure new constitutional principles are delivered.

Formalization of processes in the land relations of Ukraine

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K.О. Meteshkin

2017-12-01

Full Text Available The work listed a number of problematic tasks in the sphere of land relations of Ukraine, among which: weak communications between laws, inconsistency interpretations laws and insufficient use of modern information technologies. The relevance of the work is the need to solve problem tasks land relations in Ukraine and absence, proposed in the work, mathematical apparatus for solving these tasks. Analyzed work of scientists, who work in the sphere of land relations and who work in the sphere of formalize of rights. The proposed decision of actual tasks with help create mathematical ensuring for develop decision support system in land relations. The basis of this mathematical ensuring constitute methods of category theory, which provide the formalization of complex tasks. Based on methods of category theory models of land relations are constructed using data Land code of Ukraine. They will become an element of ontology land relations, which will be the structural parts of the knowledge base decision support system in the land management of Ukraine. It should also be noted, what similar models can be used in other subject areas.

The Methodology Used to Interpret Customary Land Tenure ...

African Journals Online (AJOL)

Many examples of such westernised approach can be found in case law of Canada and South Africa. The interpretation of the nature of customary land tenure according to common law or civil law principles has been increasingly rejected by higher courts in South Africa and Canada, e.g. in Alexkor Ltd v The Richtersveld ...

STABLE ADAPTIVE CONTROL FOR A CLASS OF NONLINEAR SYSTEMS WITHOUT USE OF A SUPERVISORY TERM IN THE CONTROL LAW

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MOHAMED BAHITA

2012-02-01

Full Text Available In this paper, a direct adaptive control scheme for a class of nonlinear systems is proposed. The architecture employs a Gaussian radial basis function (RBF network to construct an adaptive controller. The parameters of the adaptive controller are adapted and changed according to a law derived using Lyapunov stability theory. The centres of the RBF network are adapted on line using the k-means algorithm. Asymptotic Lyapunov stability is established without the use of a supervisory (compensatory term in the control law and with the tracking errors converging to a neighbourhood of the origin. Finally, a simulation is provided to explore the feasibility of the proposed neuronal controller design method.

Land Management Restrictions and Options for Change in Perpetual Conservation Easements

Science.gov (United States)

Rissman, Adena; Bihari, Menka; Hamilton, Christopher; Locke, Christina; Lowenstein, David; Motew, Melissa; Price, Jessica; Smail, Robert

2013-07-01

Conservation organizations rely on conservation easements for diverse purposes, including protection of species and natural communities, working forests, and open space. This research investigated how perpetual conservation easements incorporated property rights, responsibilities, and options for change over time in land management. We compared 34 conservation easements held by one federal, three state, and four nonprofit organizations in Wisconsin. They incorporated six mechanisms for ongoing land management decision-making: management plans (74 %), modifications to permitted landowner uses with discretionary consent (65 %), amendment clauses (53 %), easement holder rights to conduct land management (50 %), reference to laws or policies as compliance terms (47 %), and conditional use permits (12 %). Easements with purposes to protect species and natural communities had more ecological monitoring rights, organizational control over land management, and mechanisms for change than easements with general open space purposes. Forestry purposes were associated with mechanisms for change but not necessarily with ecological monitoring rights or organizational control over land management. The Natural Resources Conservation Service-Wetland Reserve Program had a particularly consistent approach with high control over land use and some discretion to modify uses through permits. Conservation staff perceived a need to respond to changing social and ecological conditions but were divided on whether climate change was likely to negatively impact their conservation easements. Many conservation easements involved significant constraints on easement holders' options for altering land management to achieve conservation purposes over time. This study suggests the need for greater attention to easement drafting, monitoring, and ongoing decision processes to ensure the public benefits of land conservation in changing landscapes.

Women and Land

International Development Research Centre (IDRC) Digital Library (Canada)

halting environmental degradation and moving toward more sustainable forms of .... governmental organizations aware of the discrepancy between land laws and actual ... grounds that this would disrupt gender relations and family structure. ... pay off debts and buy their grandchildren new clothes. As a practical step ...

EVALUATION OF SALES VALUE OF OBJECT TAX ON LAND AND BUILDINGS

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Titin RULIANA

2014-06-01

Full Text Available Tax revenue today become the backbone of the State reception in the State Budget ( Budget . One of the tax revenue is land and building tax . Basis of property tax is the Sales Value of Object Tax. Sales Value of Object Tax is the average price obtained from the market price , and the price is based on the Decree of the Mayor [3]. Determination Sales Value of Object Tax based on Laws number 12 of 1985 amended by Laws number 12 of 1994 [1]. Determination Sales Value of Object Tax based Formulation of the problem in this paper is as follows : "Is it the Sales Value of Object Tax on Land and Building Tax in Year 2012 in accordance with Laws number 12 of year 1994". This research used a sample of fifty one taxpayers from Income Tax Payable in 2012. Target of research is Sales Value of Object Tax on land and building by comparing the Sales Value of Object Tax contained in the Notification Letter of Tax Payable to the actual situation. Based on the background and formulation of the problem, that : "Calculation Sales Value of Object Tax on Land and Building of 2012 in the District Palaran of Samarinda City not in accordance with Law Number 12 of 1994" . I was concluded that the calculation Sales Value of Object Tax on Land and Buildings in the District Palaran been calculated in accordance with Law on number 12 of 1994 . Difference in the amount of Land and Building Tax to be paid based on The Notification Letter of Tax Payable with the results of research in the field due to lack of public understanding about The Land and Building Tax, so that the taxpayer did not immediately report the wide changes to the tax object owned by the Office of Tax services

Macro impact of the law on prevention and control of atmospheric pollution on power industry development

Energy Technology Data Exchange (ETDEWEB)

Wang, Z. [State Power Corporation (China). Dept. of Science, Technology and Environment

2001-07-01

The newly revised and enlarged main contents of China's Law of Prevention and Control of Atmospheric Pollution, which came into force on 1 September 2000, are described. The macro impacts of the law on the power industry development are analyzed mainly in respect to power demand and readjustment of power structure and layout, clean production and pollution control level, scientific management of environmental protection, in accordance with law as well as changes of construction and operation costs. Several questions worthy to be noted in course of implementation of the new law are enumerated. 1 tab.

Influences of Regional Development on Land Use of Nagara Basin and Flood Risk Control

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Banba Michiko

2016-01-01

Full Text Available Land developments, and construction of factories or logistic centers should be implemented with the wellconsidered land use plans by taking account of disaster risks to improve the resilience of region to mitigate damages. In this paper, the relationship between regional development and land use from the perspective of flood risk control. Nagara basin in Gifu prefecture (Gifu, Mino, and Seki City, where transportation network has been developed to raise the potential for more development, is selected as a case study site. First, changes of industrial structures of the region and its influences on land use were analyzed. Then, possible flood control measures were summarized, and issues from the land use perspective are analysed

Wind and water erosion control on semiarid lands

International Nuclear Information System (INIS)

Siddoway, F.H.

1980-01-01

Commercial crop production on semiarid lands is difficult because insufficient water is often present to manage the system effectively. Erosion control presents the major management problem. The factors contributing to wind erosion and their interaction have been quantified into a wind erosion equation. The control of wind erosion through agronomic alteration of the various factors is discussed. The quantification and control of water erosion is also discussed with respect to the Universal Soil Loss Equation. Radioisotopes tracers have been used in conjunction with these erosion equations to measure soil losses. (author)

A place of her own: women and land.

Science.gov (United States)

Ogana, W; Seaforth, W

1995-12-01

This article discusses the gender issue of access to land and property by women. Women experience constraints to owning, inheriting, and using land. Laws, customs, and economics are factors that interfere with women's access to land and property. Women are forming groups and pooling their savings in order to buy land, or start an income generation project. In Kenya, women's groups have names that reflect women's situations. Under customary law, women frequently are unable to own land except through husbands or other male relatives. Widows without sons or unmarried women are denied access. In some legal systems, women are treated as minors and cannot make business transactions without a male relative's consent. Even in countries where women have the right to land ownership and property, women have little chance for ownership due to high costs and women's lack of business practices or knowledge of their rights. In a subsistence economy, land offers a place to live and to grow food. Pressure on the land in subsistence economies erodes women's ability to maintain shelters and feed their families. Women pushed onto marginal lands must struggle for survival and face eviction. Town planners ignore people's need to grow food for survival. Groups fight eviction based on protection of human rights. Community land trusts remove land from speculation. Gaining title to land may be a complicated process. Land delivery systems need to be more efficient. New ways of obtaining credit not tied to land ownership are needed. Governments need to remove constraints to land for all, particularly the disadvantaged.

Power laws reveal phase transitions in landscape controls of fire regimes

Science.gov (United States)

Donald McKenzie; Maureen C. Kennedy

2012-01-01

Understanding the environmental controls on historical wildfires, and how they changed across spatial scales, is difficult because there are no surviving explicit records of either weather or vegetation (fuels). Here we show how power laws associated with fire-event time series arise in limited domains of parameters that represent critical transitions in the controls...

Papering over the cracks: An ethnography of land title in the Eastern Cape

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Rosalie Kingwill

Full Text Available The article addresses the dualistic legal paradigm prevalent in South Africa's approach to recognising rights in land. The system of title is characterised by precise and quantifiable mathematical formulae formalised through paper records that convey proprietary powers to registered owners. This view is contrasted with the characteristics of land tenure among African families with freehold title in the Eastern Cape who trace their relationship to their land to forebears who acquired title in the nineteenth century. The findings show that relationships reminiscent of 'customary' concepts of the family are not extinguished when title is issued. The land is viewed as family property held by unilineal descent groups symbolised by the family name. This conception diverges considerably from the formal, legal notion of land title as embodied in common law, and from rules of inheritance in official customary law. African freeholders' source of legitimation of successive rights in land is not the 'law' but locally understood norms framed within identifiable parameters that sanction socially acceptable practices. The conclusion raises broader questions about the paradigm that informs South African law reform in a range of tenure contexts, suggesting that current policies are poorly aligned with the social realities on the ground.

Preservation of Agricultural Land as an Issue of Societal Importance

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Elin Slätmo

2017-12-01

Full Text Available Based on concerns about food security and food sovereignty, it is appropriate to scrutinise societal measures for protecting agricultural land from conversion to other uses. Changes from agricultural to urban land use are particularly problematic, as they are largely irreversible. By analysing relevant Swedish policy, the present study investigated how the protection of agricultural land is framed as an issue of societal importance. Protection of agricultural land is enshrined in Swedish law, but its use is still continually changing to housing and other constructions. In a structured policy analysis, two questions were examined: (1 what are the societal motives for protecting agricultural land in Sweden, and (2 how do these motives influence the governance of agricultural land? The meaning of ‘national importance’, ‘suitable for cultivation’ and ‘significant national interests’ in Swedish land-use law was also analysed. The results showed that formulations in the law reflect the ambivalent discourses on agricultural land preservation and that the Swedish authorities view other land uses as more important than agriculture. The Swedish governance system is currently built on trust that municipal institutions will make satisfactory decisions concerning land and water use. However, it has been shown that these decisions have not been satisfactory concerning the protection of agricultural land, and it is important to acknowledge that the sum of local decisions can be degrading for these life-supporting resources. The present analysis revealed a looming conflict between the preservation of soils for food production, on one hand, and local participation in decision making, on the other. This raises the question of whether it is more important to defend subsidiarity or to preserve certain resources which are important for food security, such as agricultural land.

Shuttle Flight Operations Contract Generator Maintenance Facility Land Use Control Implementation Plan (LUCIP)

Science.gov (United States)

Applegate, Joseph L.

2014-01-01

This Land Use Control Implementation Plan (LUCIP) has been prepared to inform current and potential future users of the Kennedy Space Center (KSC) Shuttle Flight Operations Contract Generator Maintenance Facility (SFOC; SWMU 081; "the Site") of institutional controls that have been implemented at the Site1. Although there are no current unacceptable risks to human health or the environment associated with the SFOC, an institutional land use control (LUC) is necessary to prevent human health exposure to antimony-affected groundwater at the Site. Controls will include periodic inspection, condition certification, and agency notification.

Urban development, and emerging relations of informal property and land based authority in Accra

DEFF Research Database (Denmark)

Stacey, Paul Austin

2018-01-01

Rural–urban migration leads to ever increasing numbers of Africans living in informal settlements. In Accra's largest informal settlement, Old Fadama, residents by definition have no statutory rights to the land and their building activities undermine formal state law and state-recognized customary......, building and development in the settlement that involve a variety of local, national and global actors. Their actions show the contemporaneous making and unmaking of different relations of property and land-based control and authority in the densely populated urban site. Important features of urban...

Legal aspects of radioactive waste disposal from the mining law point of view

International Nuclear Information System (INIS)

Kuehne, G.

1992-01-01

The contribution discusses the scope of the regulations laid down by the Mining Laws, the plan-of-working procedures stipulated by these laws, the significance of the clause which watches over the conservation of resources ('Rohstoffsicherungsklausel', Paragraph 48/I/p, 2 BBergG) as a clause watching over the availability of repositories, and the responsibilities of the Government and the Lands for administrative procedures within the Mining Laws. The deficiencies of the system with regard to the administrative synchronization of the Atomic Energy Laws and the Mining Laws suggest a reform of the Atomic Energy Law. Although the elimination of such deficiencies has never been the subject of the respective preparatory discussions the reform intends to relieve the Government of any obligation laid down by Paragraph 9a, section 3 of the Atomic Energy Law by putting repository installation and operation into private hands. In view of this target one must be aware of the fact that the Federal Government may have to succumb to the Lands when it comes to executing the regulations of the Mining Laws. A solution of that kind cannot be recommended in view of the fact that one plans to treat every case by applying one kind of licensing procedure in accordance with paragraph 7 of the Atomic Energy Laws and to extend the Government's authority to issue directives (section 85, 3 of the Basic Law for the Federal Republic of Germany) to legal matters which are wound up by the very Lands. (orig./HSCH) [de

The Legal Regime of Nuclear Power Satellites-A Problem at the Cross-Roads of Nuclear Law and Space Law

International Nuclear Information System (INIS)

Courteix, S.

1992-01-01

The number of nuclear-powered satellites rises constantly and, recalling the fear generated by the crash of the Cosmos 954 satellite, the author points out that radioactive debris falling on earth could represent as great a hazard as accidental releases of radioactive material from land-based nuclear installations. Such satellites, therefore, can be governed by both space law and nuclear law. On the basis of international conventions applicable in the two fields and also with reference to the Law of the Sea and environmental law, the article analyses preventive and radiation protection measures as well as emergency plans and also raises the problem of liability and compensation for damage. (NEA)

Application of the concept of dynamic trim control to automatic landing of carrier aircraft. [utilizing digital feedforeward control

Science.gov (United States)

Smith, G. A.; Meyer, G.

1980-01-01

The results of a simulation study of an alternative design concept for an automatic landing control system are presented. The alternative design concept for an automatic landing control system is described. The design concept is the total aircraft flight control system (TAFCOS). TAFCOS is an open loop, feed forward system that commands the proper instantaneous thrust, angle of attack, and roll angle to achieve the forces required to follow the desired trajector. These dynamic trim conditions are determined by an inversion of the aircraft nonlinear force characteristics. The concept was applied to an A-7E aircraft approaching an aircraft carrier. The implementation details with an airborne digital computer are discussed. The automatic carrier landing situation is described. The simulation results are presented for a carrier approach with atmospheric disturbances, an approach with no disturbances, and for tailwind and headwind gusts.

Principles of land debt as a kind of real collateral

Directory of Open Access Journals (Sweden)

Pavićević Aleksandra

2014-01-01

Full Text Available The issue of the work is an analysis of characteristics of land debt, known as non-accessory real right securing claims in German and Swiss law. Using the method of comparative analysis of the characteristics of this property right, author determines the similarities and differences of land debt in relation to similar types of rights, in particular in relation to a mortgage, as most similar security right, from the group of liens. Since the Draft Code of ownership and other property real rights in Serbia in 2006. proposed the introduction of real debt in Serbian law, the author of the paper examines the advantages and disadvantages of this concept in order to evaluate this assessment.. As an essential difference to the lien, the author defines the non-accessory character of land debt and multifunctional purpose. The author advocates the introduction of institute of land debt in future Serbian law, as the original non-accessory real security right (sui generis that represents functional addittion to accessory mortgage.

Draft of a Federal Mining Law (BBergG). [German Federal Republic

Energy Technology Data Exchange (ETDEWEB)

1977-01-01

Standardization and rearrangement is proposed for all the mining laws in the Federal Republic of Germany, especially of the regulations concerning prospecting and mining of natural resources. The draft provides; 1) creation of a modern, elastic system of concessions for particularly important natural resources withdrawn from the landed property; smoothing of the existing system of mineral rights; 2) development of the instruments of mining law adapted to the special requirements of mining natural resources in view of preventive and current control of the operation and its supervision; 3) first-time authorizations for federal safety and labor protection decrees; 4) reformation of the relationship with the employer's liability insurances and, resulting therefrom, improvement of the accident prevention measures; 5) stronger embodiment of damage-preventing measures in mining-damage law; improvement of the extent of liability and the protection of those damaged; 6) accounting for related new engineering developments (underground tankless storage); 7) final regulation for prospecting and mining of natural resources in the range of the continental shelf; 8) relief of mining law from alien legal matters as well as liquidation of antiquated institutes of mining law.

Some New Locally Optimal Control Laws for Sailcraft Dynamics in Heliocentric Orbits

Directory of Open Access Journals (Sweden)

F. A. Abd El-Salam

2013-01-01

Full Text Available The concept of solar sailing and its developing spacecraft is presented. The gravitational and solar radiation forces are considered. The effect of source of radiation pressure and the force due to coronal mass ejections and solar wind on the sailcraft configurations is modeled. Some analytical control laws with some mentioned input constraints for optimizing sailcraft dynamics in heliocentric orbit using lagrange’s planetary equations are obtained. Optimum force vector in a required direction is maximized by deriving optimal sail cone angle. Ignoring the absorbed and diffusely reflected parts of the radiation, some special cases are obtained. New control laws that maximize thrust to obtain certain required maximization in some particular orbital element are obtained.

Evaluation of compost blankets for erosion control from disturbed lands.

Science.gov (United States)

Bhattarai, Rabin; Kalita, Prasanta K; Yatsu, Shotaro; Howard, Heidi R; Svendsen, Niels G

2011-03-01

Soil erosion due to water and wind results in the loss of valuable top soil and causes land degradation and environmental quality problems. Site specific best management practices (BMP) are needed to curb erosion and sediment control and in turn, increase productivity of lands and sustain environmental quality. The aim of this study was to investigate the effectiveness of three different types of biodegradable erosion control blankets- fine compost, mulch, and 50-50 mixture of compost and mulch, for soil erosion control under field and laboratory-scale experiments. Quantitative analysis was conducted by comparing the sediment load in the runoff collected from sloped and tilled plots in the field and in the laboratory with the erosion control blankets. The field plots had an average slope of 3.5% and experiments were conducted under natural rainfall conditions, while the laboratory experiments were conducted at 4, 8 and 16% slopes under simulated rainfall conditions. Results obtained from the field experiments indicated that the 50-50 mixture of compost and mulch provides the best erosion control measures as compared to using either the compost or the mulch blanket alone. Laboratory results under simulated rains indicated that both mulch cover and the 50-50 mixture of mulch and compost cover provided better erosion control measures compared to using the compost alone. Although these results indicate that the 50-50 mixtures and the mulch in laboratory experiments are the best measures among the three erosion control blankets, all three types of blankets provide very effective erosion control measures from bare-soil surface. Results of this study can be used in controlling erosion and sediment from disturbed lands with compost mulch application. Testing different mixture ratios and types of mulch and composts, and their efficiencies in retaining various soil nutrients may provide more quantitative data for developing erosion control plans. Copyright © 2010 Elsevier

Evaluation of Tobacco Control Law at Cafe’ and Restaurants

Directory of Open Access Journals (Sweden)

Hilal Özcebe

2015-04-01

Full Text Available Objective: This study was conducted in order to evaluate ideas of some cafe and restaurants’ clients and workers about the tobacco control law three years after entering into force in a central district in Ankara in 2008. Methods: In the descriptive study;105 management, 113 worker and 386 client was visited, face to face interviews were done using two different questionnaire form and another form for managements’ evaluation. SPSS 15.0 statistical package program, Chi-square and t-tests were used. Administrative leave was taken. Results: Mean age of workers was 30.1±8.32 years; 82.3% were men, 54.0% smoker; with clients the values are 27.7±8.61 years; 53.6% women and 39.4% were smokers. There’s a difference between smokers and non- smokers’ ideas about the hazards; death due to second-hand smoking (p=0.024; p<0.01. 80.3% of smokers and 74.3% of non-smokers knew the law in restaurants serving alcoholic beverages. Acceptance of the idea of the law could help to quit smoking was significantly different between smoker/non smoker workers and smoker/non smoker clients (p=0.004;p<0.001. According to observations, 7.6% of the managements didn’t have law related plaque, 94.1% had smoking free areas, 57.1% had show window, 22.7% had smoking individuals and 12.6% had ashtray. Conclusion: Tobacco use is an individualistic reality but also a public health issue. Publicly acceptance of 45 law and implementations are needed besides individual perceptions. Implementations must be inspected and Smokers’ observance of the rules must be supplied in order to decrease tobacco use and related health complications.

Land Market and Price of the Agricultural Land after the End of the Transitional Period

Directory of Open Access Journals (Sweden)

Dirgasová Katarína

2016-11-01

Full Text Available After the end of the transition period for the purchase of the agricultural land by foreigners, the legislation regulating the acquisition of the agricultural land was adopted for the purpose of harmonization of the Slovak legislation with the legislation of the European Union. The Law no. 140/2014 Coll. on the acquisition of ownership to the agricultural land and amending and supplementing determines the subjects that are legitimated to acquire the ownership to the agricultural land. In addition, due to the creation of the Register of Offers of the Agricultural Land, the legislation allows the landowner to set a price on the sale of the agricultural land. In Slovakia, apart from the administrative prices and the market prices, there is a new type of prices, so-called „supply price“. The aim of the paper is to sum up the impact of the current legislation on the land market and the prices of agricultural land.

The effect of gravity on the motor control of landing

OpenAIRE

Gambelli, Clément

2016-01-01

Landing from a fall is a complex action requiring the prediction of the instant of contact with the ground. Since humans have developed motor actions on Earth, the nervous system and the sensory input processing are optimized to the Earth’s gravity. The aim of this study is to assess human motor control of landing in different conditions of fall initiation, simulated gravity and sensory neural input. Hypergravity was simulated either on Earth with a Subject Loading System (SLS) generating a p...

Block backstepping design of nonlinear state feedback control law for underactuated mechanical systems

CERN Document Server

Rudra, Shubhobrata; Maitra, Madhubanti

2017-01-01

This book presents a novel, generalized approach to the design of nonlinear state feedback control laws for a large class of underactuated mechanical systems based on application of the block backstepping method. The control law proposed here is robust against the effects of model uncertainty in dynamic and steady-state performance and addresses the issue of asymptotic stabilization for the class of underactuated mechanical systems. An underactuated system is defined as one for which the dimension of space spanned by the configuration vector is greater than that of the space spanned by the control variables. Control problems concerning underactuated systems currently represent an active field of research due to their broad range of applications in robotics, aerospace, and marine contexts. The book derives a generalized theory of block backstepping control design for underactuated mechanical systems, and examines several case studies that cover interesting examples of underactuated mechanical systems. The math...

Public access to private land in Scotland | Miller | Potchefstroom ...

African Journals Online (AJOL)

This article attempts to understand the radical reform of Scottish land law in its provision for a general right of public access to private land introduced in 2003 as part of land reform legislation, an important aspect of the initial agenda of the Scottish Parliament revived in 1999. The right is to recreational access for a limited ...

Gender and access to land in Senegal

International Development Research Centre (IDRC) Digital Library (Canada)

bequests, gifts and loans emerge as the principal means of access to land. These types of access prior to the law on state land property (assignment) still retain a large social legitimacy. Often, these forms of access (family allowance, legacy) in which men are privileged, serve as reference for local officials who administer ...

Romania- New Tobacco control law from an NGO perspective

Directory of Open Access Journals (Sweden)

Mihaltan Florin Dumitru

2016-03-01

Full Text Available In our presentation we are evaluating the progress of the tobacco control in Romania looking form the point of view on NGO in the last 26 years. We are signalling the progressive steps towards policy and an advocacy from our perspective and the consequences of our success. The final result is reflected in the new law starting in force on March 17th, 2016, a real advance in our fight. We are identifying in the same time the new challenging problems after launching the new law. Probably the biggest gain of our fight is the extensive partnership with all the factors, our efforts to bring together in a big family as the coalition “Romania Respira” politicians, advocates, judges, economists, young’s and also the new way found to encourage all: mass media, politicians, journalists, public to support us.

Waste Isolation Pilot Plant land management plan

International Nuclear Information System (INIS)

1996-01-01

On October 30, 1992, the WIPP Land Withdrawal Act became law. This Act transferred the responsibility for the management of the WIPP Land Withdrawal Area (WILWA) from the Secretary of the Interior to the Secretary of Energy. In accordance with sections 3(a)(1) and (3) of the Act, these lands open-quotes hor-ellipsis are withdrawn from all forms of entry, appropriation, and disposal under the public land laws hor-ellipsis close quotesand are reserved for the use of the Secretary of Energy open-quotes hor-ellipsis for the construction, experimentation, operation, repair and maintenance, disposal, shutdown, monitoring, decommissioning, and other activities, associated with the purposes of WIPP as set forth in the Department of Energy National Security and Military Applications of Nuclear Energy Act of 1980 and this Act.close quotes. As a complement to this LMP, a MOU has been executed between the DOE and the BLM, as required by section 4(d) of the Act. The state of New Mexico was consulted in the development of the MOU and the associated Statement of Work (SOW)

Waste Isolation Pilot Plant land management plan

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-05-01

On October 30, 1992, the WIPP Land Withdrawal Act became law. This Act transferred the responsibility for the management of the WIPP Land Withdrawal Area (WILWA) from the Secretary of the Interior to the Secretary of Energy. In accordance with sections 3(a)(1) and (3) of the Act, these lands {open_quotes}{hor_ellipsis}are withdrawn from all forms of entry, appropriation, and disposal under the public land laws{hor_ellipsis}{close_quotes}and are reserved for the use of the Secretary of Energy {open_quotes}{hor_ellipsis}for the construction, experimentation, operation, repair and maintenance, disposal, shutdown, monitoring, decommissioning, and other activities, associated with the purposes of WIPP as set forth in the Department of Energy National Security and Military Applications of Nuclear Energy Act of 1980 and this Act.{close_quotes}. As a complement to this LMP, a MOU has been executed between the DOE and the BLM, as required by section 4(d) of the Act. The state of New Mexico was consulted in the development of the MOU and the associated Statement of Work (SOW).

PRINCIPLE ON THE LAND REGISTER IN THE INTERPRETATION OF JURISPRUDENCE

Directory of Open Access Journals (Sweden)

Hamid Mutapčić

2016-04-01

Full Text Available For a longer period of time land registers in Bosnia and Herzegovina do not reflect the actual situation regarding property rights. The reasons should be sought in the poor quality of and inconsistent legislation that allowed non-registered acquisition of real property rights. On the basis of such legislation earlier Yugoslav jurisprudence had permanently denied the acquisition of property rights based on the principle of trust in the land registry. A new definition of the principle of trust, which implies the protection of the rights acquired on the basis of incorrect and incomplete land registry status, was introduced with the entry into force of the new entity laws on land registry. The main intention of the legislature is reaffirmation of the land registry and its basic principles, which is a precondition for faster and easier real estate transactions. However, the new law provides for real solutions that prevent the full application of the principle of trust, which results in the adoption of different and unequal judicial decisions. The paper presents analysis of such legal solutions, also defects that generate the emergence of different concepts of law are detected, and proposals de lege ferenda are listed in order to create the legal conditions for uniform jurisprudence.

Sex differences in kinetic and neuromuscular control during jumping and landing

Science.gov (United States)

Márquez, G.; Alegre, L.M.; Jaén, D.; Martin-Casado, L.; Aguado, X.

2017-01-01

In the present study, we analysed the kinetic profile together with the lower limb EMG activation pattern during a countermovement jump and its respective landing phase in males and females. Twenty subjects (10 males and 10 females) took part in the study. One experimental session was conducted in order to record kinetic and electromyographic (EMG) parameters during a countermovement jump (CMJ) and the subsequent landing phase. During the CMJ, males recorded a higher (ppush-off phase. During landings males showed higher (p<0.01) peak ground reaction forces (Fpeak), greater (p<0.05) stiffness and a higher maximal displacement of the CoM (p<0.05) than females. EMG analysis revealed greater EMG activity in the tibialis anterior (p<0.05) and rectus femoris (p=0.05) muscles in males. Higher plantar flexor co-activation during landing has also been found in males. Our findings demonstrated different neuromuscular control in males and females during jumping and landing. PMID:28250245

E-Alerts: Environmental pollution and control (air pollution and control). E-mail newsletter

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-04-01

Topics of discussion include the following: Air pollution from flue gases, exhaust gases, odors, dust, smog, microorganisms, etc.; Control techniques and equipment; Sampling and analytical techniques, and equipment; Waste gas recovery; Biological and ecological effects; Air pollution chemistry; Acid precipitation; Atmospheric motion; Laws, legislation, and regulations; Public administration; Economics; Land use.

Land cover controls on summer discharge and runoff solution chemistry of semi-arid urban catchments

Science.gov (United States)

Gallo, Erika L.; Brooks, Paul D.; Lohse, Kathleen A.; McLain, Jean E. T.

2013-04-01

SummaryRecharge of urban runoff to groundwater as a stormwater management practice has gained importance in semi-arid regions where water resources are scarce and urban centers are growing. Despite this trend, the importance of land cover in controlling semi-arid catchment runoff quantity and quality remains unclear. Here we address the question: How do land cover characteristics control the amount and quality of storm runoff in semi-arid urban catchments? We monitored summertime runoff quantity and quality from five catchments dominated by distinct urban land uses: low, medium, and high density residential, mixed use, and commercial. Increasing urban land cover increased runoff duration and the likelihood that a rainfall event would result in runoff, but did not increase the time to peak discharge of episodic runoff. The effect of urban land cover on hydrologic responses was tightly coupled to the magnitude of rainfall. At distinct rainfall thresholds, roads, percent impervious cover and the stormwater drainage network controlled runoff frequency, runoff depth and runoff ratios. Contrary to initial expectations, runoff quality did not vary in repose to impervious cover or land use. We identified four major mechanisms controlling runoff quality: (1) variable solute sourcing due to land use heterogeneity and above ground catchment connectivity; (2) the spatial extent of pervious and biogeochemically active areas; (3) the efficiency of overland flow and runoff mobilization; and (4) solute flushing and dilution. Our study highlights the importance of the stormwater drainage systems characteristics in controlling urban runoff quantity and quality; and suggests that enhanced wetting and in-stream processes may control solute sourcing and retention. Finally, we suggest that the characteristics of the stormwater drainage system should be integrated into stormwater management approaches.

INDONESIAN SALVAGE LAW WITHIN THE FRAMEWORK OF CONTEMPORARY MARITIME LAW

Directory of Open Access Journals (Sweden)

Dhiana Puspitawati

2015-12-01

Full Text Available Located in a strategic position, that is between two great oceans and two land masses have made Indonesia a centre of international trade and shipping. In fact, 90% of international trades are carried out through the ocean. It is therefore crucial to assure that the activities in carrying goods across the ocean are incident free. However, if accident happens, assistance from professionals to preserve items of property is desirable. In such, salvage law emerged. This paper discusses comprehensively Indonesian salvage law within the framework of contemporary maritime law. While Indonesian maritime law is mostly based on its national law on the carriage of goods by the sea, in fact, the development of maritime law is highly affected by international practices which are largely based on international conventions and regulations. This research finds that while Indonesian salvage law can be found in Book II Chapter VII article 545-568k Wetboek Van Koophandel or known as Kitab Undang-undang Hukum Dagang (KUHD, which focused narrowly on the value of salved property as the primary measures of success, yet Indonesian salvage law has not been developed in accordance with current international salvage law, which adopted a broader and more balanced approached in both commercial and environmental aspects. Although it is believed that such approached is “culturally unrecognized” in Indonesia, this research argued that since Indonesian waters are part of international waters, all process by waters including salvage should confirm the relevant international practices and regulations. While Indonesia has taken out salvage law from KUHD and regulates it within Act Number 17/2008 on navigation, however, such act only provides one article for salvage stating that salvage will be regulates further by Ministry Regulation. Untill this paper was written no such government regulation produced yet by Indonesia. Since Indonesian waters is the centre of international

Motor control of landing from a countermovement jump in simulated microgravity.

Science.gov (United States)

Gambelli, C N; Theisen, D; Willems, P A; Schepens, B

2016-05-15

Landing from a jump implies proper positioning of the lower limb segments and the generation of an adequate muscular force to cope with the imminent collision with the ground. This study assesses how a hypogravitational environment affects the control of landing after a countermovement jump (CMJ). Eight participants performed submaximal CMJs on Earth (1-g condition) and in a weightlessness environment with simulated gravity conditions generated by a pull-down force (1-, 0.6-, 0.4-, and 0.2-g0 conditions). External forces applied to the body, movements of the lower limb segments, and muscular activity of six lower limb muscles were recorded. 1) All subjects were able to jump and stabilize their landing in all experimental conditions, except one subject in 0.2-g0 condition. 2) The mechanical behavior of lower limb muscles switches during landing from a stiff spring to a compliant spring associated with a damper. This is true whatever the environment, on Earth as well as in environments where sensory inputs are altered. 3) The motor control of landing in simulated 1 g0 reveals an increased "safety margin" strategy, illustrated by increased stiffness and damping coefficient compared with landing on Earth. 4) The motor command is adjusted to the task constraints: muscular activity of lower limb extensors and flexors, stiffness and damping coefficient decrease according to the decreased gravity level. Our results show that even if in daily living gravity can be perceived as a constant factor, subjects can cope with altered sensory signals, taking advantage of the remaining information (visual and/or decreased proprioceptive inputs). Copyright © 2016 the American Physiological Society.

A Study of Control Laws for Microsatellite Rendezvous with a Noncooperative Target

National Research Council Canada - National Science Library

Tschirhart, Troy

2003-01-01

This study investigated the feasibility of using a microsatellite to accomplish an orbital rendezvous with a noncooperative target, with a focus on the control laws necessary for achieving such a rendezvous...

Control of cavity acoustics by surface waviness in landing configurations

CSIR Research Space (South Africa)

Dala, L

2014-08-01

Full Text Available ): 2321-3051 INTERNATIONAL JOURNAL OF RESEARCH IN AERONAUTICAL AND MECHANICAL ENGINEERING Control of Cavity Acoustics by Surface Waviness In Landing Configurations Laurent Dala CSIR, DPSS/Aeronautics Systems, Pretoria 0001, South Africa...

THE NATURE OF LAND OWNERSHIP AND THE PROTECTION OF ...

African Journals Online (AJOL)

OLAWUYI

i.e. the principal or dominant right and ownership of third party rights which are ... English land law.6 In 1974, John Henry Merryman explained the difference .... 11 The doctrine of estate has its origin in the medieval theory of English land ...

Controlling weapons of mass destruction through the rule of law

Energy Technology Data Exchange (ETDEWEB)

Tanzman, E.A.

1995-08-08

Many who speak of the end of the Cold War emphasize the improvement in international relations when they speak of the momentous consequences of this event. According to this image, the half century since Trinity has been a period of sparse international communication during which the Eastern and Western blocs hibernated in their isolated dens of security alliances. The emphasis in the phrase ``Cold War`` was on the word ``cold,`` and relations with the former Communist regimes are now ``warm`` by comparison. It is equally valid to consider what has happened to the word ``was` in this highly descriptive phrase. While meaningful international dialogue was in a state of relative lethargy during much of the last fifty years, the military establishments of the Great Powers were actively engaged in using as much force as possible in their efforts to control world affairs, short of triggering a nuclear holocaust. Out of these military postures a tense peace ironically emerged, but the terms by which decisions were made about controlling weapons of mass destruction (i.e., nuclear, chemical, and biological weapons) were the terms of war. The thesis of this paper is that the end of the Cold War marks a shift away from reliance on military might toward an international commitment to controlling weapons,of mass destruction through the ``rule of law.`` Rawls wrote that ``legal system is a coercive order of public rules addressed to rational persons for the purpose of regulating their conduct and providing the framework for social cooperation. The regular and impartial administration of public rules, becomes the rule of law when applied to the legal system.`` Inparticular, Rawls identifies as part of this system of public rules those laws that aim to prevent free riders on the economic system and those that aim to correct such externalities as environmental pollution.``

77 FR 7600 - Notice of Segregation of Public Lands in the State of Arizona for the Restoration Design Energy...

Science.gov (United States)

2012-02-13

...] Notice of Segregation of Public Lands in the State of Arizona for the Restoration Design Energy Project... Arizona from all forms of appropriation under the public land laws, including the mining law, but... the Restoration Design Energy Project (RDEP). The public lands contained in this segregation total...

Effects of land use on bird populations and pest control services on coffee farms.

Science.gov (United States)

Railsback, Steven F; Johnson, Matthew D

2014-04-22

Global increases in both agriculture and biodiversity awareness raise a key question: Should cropland and biodiversity habitat be separated, or integrated in mixed land uses? Ecosystem services by wildlife make this question more complex. For example, birds benefit agriculture by preying on pest insects, but other habitat is needed to maintain the birds. Resulting land use questions include what areas and arrangements of habitat support sufficient birds to control pests, whether this pest control offsets the reduced cropland, and the comparative benefits of "land sharing" (i.e., mixed cropland and habitat) vs. "land sparing" (i.e., separate areas of intensive agriculture and habitat). Such questions are difficult to answer using field studies alone, so we use a simulation model of Jamaican coffee farms, where songbirds suppress the coffee berry borer (CBB). Simulated birds select habitat and prey in five habitat types: intact forest, trees (including forest fragments), shade coffee, sun coffee, and unsuitable habitat. The trees habitat type appears to be especially important, providing efficient foraging and roosting sites near coffee plots. Small areas of trees (but not forest alone) could support a sufficient number of birds to suppress CBB in sun coffee; the degree to which trees are dispersed within coffee had little effect. In simulations without trees, shade coffee supported sufficient birds to offset its lower yield. High areas of both trees and shade coffee reduced pest control because CBB was less often profitable prey. Because of the pest control service provided by birds, land sharing was predicted to be more beneficial than land sparing in this system.

The mean first passage time in an energy-diffusion controlled regime with power-law distributions

International Nuclear Information System (INIS)

Zhou, Yanjun; Du, Jiulin

2013-01-01

Based on the mean first passage time (MFPT) theory, we derive an expression of the MFPT in an energy-diffusion controlled regime with a power-law distribution. We discuss the finite barrier effect (i.e. the thermal energy k B T is not small with respect to the potential barrier E b ) and compare it with Kramers’ infinite barrier result both in a power-law distribution and in a Maxwell–Boltzmann distribution. It is shown that the MFPT with a power-law distribution extends Kramers’ low-damping result to a relatively low barrier. We pay attention to the energy-diffusion controlled regime, which is of great interest in the context of Josephson junctions, and study how the power-law parameter κ affects the current distribution function in experiments with Josephson junctions. (paper)

Fitts’ Law in the Control of Isometric Grip Force With Naturalistic Targets

Directory of Open Access Journals (Sweden)

Zachary C. Thumser

2018-04-01

Full Text Available Fitts’ law models the relationship between amplitude, precision, and speed of rapid movements. It is widely used to quantify performance in pointing tasks, study human-computer interaction, and generally to understand perceptual-motor information processes, including research to model performance in isometric force production tasks. Applying Fitts’ law to an isometric grip force task would allow for quantifying grasp performance in rehabilitative medicine and may aid research on prosthetic control and design. We examined whether Fitts’ law would hold when participants attempted to accurately produce their intended force output while grasping a manipulandum when presented with images of various everyday objects (we termed this the implicit task. Although our main interest was the implicit task, to benchmark it and establish validity, we examined performance against a more standard visual feedback condition via a digital force-feedback meter on a video monitor (explicit task. Next, we progressed from visual force feedback with force meter targets to the same targets without visual force feedback (operating largely on feedforward control with tactile feedback. This provided an opportunity to see if Fitts’ law would hold without vision, and allowed us to progress toward the more naturalistic implicit task (which does not include visual feedback. Finally, we changed the nature of the targets from requiring explicit force values presented as arrows on a force-feedback meter (explicit targets to the more naturalistic and intuitive target forces implied by images of objects (implicit targets. With visual force feedback the relation between task difficulty and the time to produce the target grip force was predicted by Fitts’ law (average r2 = 0.82. Without vision, average grip force scaled accurately although force variability was insensitive to the target presented. In contrast, images of everyday objects generated more reliable grip forces

Fitts' Law in the Control of Isometric Grip Force With Naturalistic Targets.

Science.gov (United States)

Thumser, Zachary C; Slifkin, Andrew B; Beckler, Dylan T; Marasco, Paul D

2018-01-01

Fitts' law models the relationship between amplitude, precision, and speed of rapid movements. It is widely used to quantify performance in pointing tasks, study human-computer interaction, and generally to understand perceptual-motor information processes, including research to model performance in isometric force production tasks. Applying Fitts' law to an isometric grip force task would allow for quantifying grasp performance in rehabilitative medicine and may aid research on prosthetic control and design. We examined whether Fitts' law would hold when participants attempted to accurately produce their intended force output while grasping a manipulandum when presented with images of various everyday objects (we termed this the implicit task). Although our main interest was the implicit task, to benchmark it and establish validity, we examined performance against a more standard visual feedback condition via a digital force-feedback meter on a video monitor (explicit task). Next, we progressed from visual force feedback with force meter targets to the same targets without visual force feedback (operating largely on feedforward control with tactile feedback). This provided an opportunity to see if Fitts' law would hold without vision, and allowed us to progress toward the more naturalistic implicit task (which does not include visual feedback). Finally, we changed the nature of the targets from requiring explicit force values presented as arrows on a force-feedback meter (explicit targets) to the more naturalistic and intuitive target forces implied by images of objects (implicit targets). With visual force feedback the relation between task difficulty and the time to produce the target grip force was predicted by Fitts' law (average r 2 = 0.82). Without vision, average grip force scaled accurately although force variability was insensitive to the target presented. In contrast, images of everyday objects generated more reliable grip forces without the visualized

Geomorphic versus land use controls on suspended sediment rating curves

Science.gov (United States)

Belmont, P.; Vaughan, A. A.; Fisher, A. C. N.

2017-12-01

The relation between river discharge (Q) and suspended sediment (SS) concentration reflects the degree to which sediment sources are accessed or depleted across the range of flow conditions. Increased availability of high resolution topography and land use data greatly enhance our ability to evaluate linkages between characteristics of these sediment rating curves (SRCs) and the geomorphic features that influence them. We evaluated Q-SS relations at 45 gages throughout Minnesota, USA representing a wide variety of landscape settings in terms of topography, land use, and geologic history. We characterized the SRCs according to the overall shape, steepness (exponent), vertical offset (coefficient) and SS concentration under low flow (90% exceedance) conditions. Rivers exhibited three distinct SRC shapes, simple power functions, threshold power functions and peaked power functions. We used random forest models to analyze relations between SRC parameters and attributes of the watershed as well as the near-channel environment. The model correctly classified 78% of SRC shapes and explained 60% of variance in the SRC exponent, 43% of the SRC coefficient for rising limb samples, and 45% of variance under low flow conditions. Notably, the random forest models predict that near-channel morphology predominately controls both the shape and steepness of the sediment rating curves. Land use predominately controls the vertical offset (coefficient) and SS concentration under low flow conditions. These findings suggest that land use and watershed restoration practices may have little capacity to alter the shape and steepness of these curves as these characteristics may be dictated by the geologic and geomorphic setting. Rather, human influences in the watershed may exhibit the greatest influence on suspended sediment concentrations at moderate to low flows. Criteria to evaluate improvements in water quality as a result of changes in land management might be most meaningful if they

A randomized controlled trial of aquatic and land-based exercise in patients with knee osteoarthritis

DEFF Research Database (Denmark)

Lund, H.; Weile, U.; Christensen, R.

2008-01-01

patients reported adverse events (i.e. discomfort) in land-based exercise, while only 3 reported adverse events in the aquatic exercise. Conclusion: Only land-based exercise showed some improvement in pain and muscle strength compared with the control group, while no clinical benefits were detectable after......Objective: To compare the efficacy of aquatic exercise and a land-based exercise programme vs control in patients with knee osteoarthritis. Methods: Primary outcome was change in pain, and in addition Knee Injury and Osteoarthritis Outcome Score questionnaire (KOOS). Standing balance and strength...... was also measured after and at 3-month follow-up. Seventy-nine patients (62 women), with a mean age of 68 years (age range 40-89 years) were randomized to aquatic exercise (n = 27), land-based exercise (n = 25) or control (n = 27). Results: No effect was observed immediately after exercise cessation (8...

Case Law

International Nuclear Information System (INIS)

2014-01-01

This section treats of the following case laws sorted by country: 1 - Germany: Federal Administrative Court confirms the judgments of the Higher Administrative Court of the Land Hesse: The shutdown of nuclear power plant Biblis blocks A and B based on a 'moratorium' imposed by the Government was unlawful; List of lawsuits in the nuclear field. 2 - Slovak Republic: Further developments in cases related to the challenge by Greenpeace Slovakia to the Mochovce nuclear power plant; Developments in relation to the disclosure of information concerning the Mochovce nuclear power plant. 3 - United States: Judgment of the Nuclear Regulatory Commission resuming the licensing process for the Department of Energy's construction authorisation application for the Yucca Mountain high-level radioactive waste repository; Judgment of the Licensing Board in favour of Shaw AREVA MOX Services regarding the material control and accounting system at the proposed MOX Facility; Dismissal by US District Court Judge of lawsuit brought by US military personnel against Tokyo Electric Power Company (TEPCO) in connection with the Fukushima Daiichi nuclear power plant accident

Economics of mining law

Science.gov (United States)

Long, K.R.

1995-01-01

Modern mining law, by facilitating socially and environmentally acceptable exploration, development, and production of mineral materials, helps secure the benefits of mineral production while minimizing environmental harm and accounting for increasing land-use competition. Mining investments are sunk costs, irreversibly tied to a particular mineral site, and require many years to recoup. Providing security of tenure is the most critical element of a practical mining law. Governments owning mineral rights have a conflict of interest between their roles as a profit-maximizing landowner and as a guardian of public welfare. As a monopoly supplier, governments have considerable power to manipulate mineral-rights markets. To avoid monopoly rent-seeking by governments, a competitive market for government-owned mineral rights must be created by artifice. What mining firms will pay for mineral rights depends on expected exploration success and extraction costs. Landowners and mining firms will negotlate respective shares of anticipated differential rents, usually allowing for some form of risk sharing. Private landowners do not normally account for external benefits or costs of minerals use. Government ownership of mineral rights allows for direct accounting of social prices for mineral-bearing lands and external costs. An equitable and efficient method is to charge an appropriate reservation price for surface land use, net of the value of land after reclamation, and to recover all or part of differential rents through a flat income or resource-rent tax. The traditional royalty on gross value of production, essentially a regressive income tax, cannot recover as much rent as a flat income tax, causes arbitrary mineral-reserve sterilization, and creates a bias toward development on the extensive margin where marginal environmental costs are higher. Mitigating environmental costs and resolving land-use conflicts require local evaluation and planning. National oversight ensures

Effects of land use on bird populations and pest control services on coffee farms

Science.gov (United States)

Railsback, Steven F.; Johnson, Matthew D.

2014-01-01

Global increases in both agriculture and biodiversity awareness raise a key question: Should cropland and biodiversity habitat be separated, or integrated in mixed land uses? Ecosystem services by wildlife make this question more complex. For example, birds benefit agriculture by preying on pest insects, but other habitat is needed to maintain the birds. Resulting land use questions include what areas and arrangements of habitat support sufficient birds to control pests, whether this pest control offsets the reduced cropland, and the comparative benefits of “land sharing” (i.e., mixed cropland and habitat) vs. “land sparing” (i.e., separate areas of intensive agriculture and habitat). Such questions are difficult to answer using field studies alone, so we use a simulation model of Jamaican coffee farms, where songbirds suppress the coffee berry borer (CBB). Simulated birds select habitat and prey in five habitat types: intact forest, trees (including forest fragments), shade coffee, sun coffee, and unsuitable habitat. The trees habitat type appears to be especially important, providing efficient foraging and roosting sites near coffee plots. Small areas of trees (but not forest alone) could support a sufficient number of birds to suppress CBB in sun coffee; the degree to which trees are dispersed within coffee had little effect. In simulations without trees, shade coffee supported sufficient birds to offset its lower yield. High areas of both trees and shade coffee reduced pest control because CBB was less often profitable prey. Because of the pest control service provided by birds, land sharing was predicted to be more beneficial than land sparing in this system. PMID:24711377

Implications of the second law for future directions in controlled fusion research

International Nuclear Information System (INIS)

Roth, J.R.; Miley, G.H.

1980-01-01

Many existing energy related technologies have developed under the influence of social, economic, or state of the art constraints, and they cannot be viewed as optimum systems according to the second law of thermodynamics. Controlled fusion research presents an opportunity to optimize a nascent technology with respect to second law considerations in order to develop a practical energy source. In its present state of development, fusion research offers several independent approaches that may result in a net power producing fusion reactor. This paper discusses how second law considerations might be used to narrow the range of choices that must be made among various fusion fuel cycles. From a second law point of view, the most desirable fusion reactors are those for which the energy of charged particles can be converted directly into d.c. electrical power, while still allowing the energy that could be recovered by an efficient high-temperature 'blanket' to be transported largely by radiation. Fusion research in all major industrialized countries is developing the deuterium-tritium (D-T) fuel cycle for first-generation fusion power plants. It will be shown that other fuel cycles have significant advantages over the D-T fuel cycle according to second law principles. (author)

Institutional Control Program: Long Term Care and Control of Decommissioned Mine/Mill Sites Located on Crown Land

International Nuclear Information System (INIS)

Cunningham, K.

2014-01-01

Institutional Control Program: • Establishes an endpoint for mining company activities on sites located on Crown land; • Establishes funding for the long-term care and control of the closed sites; • Company responsibilities for sites under the Environmental Management and Protection Act remain; • Establishes an Institutional Control Registry; • Establishes an Institutional Control Monitoring and Maintenance Fund and an Institutional Control Unforeseen Events Fund

Residential land values and their determinants in high density ...

African Journals Online (AJOL)

The study identified that residential segregation exists in Nigerian cities and the study area. Among urbanization and residential land use problems identified by the study are poor level of social and technical infrastructure, poor land and city management system capacity, paucity of planning laws, funding, poor institutional ...

Ongoing Development of Land Administration Standards : Blockchain in Transaction Management

NARCIS (Netherlands)

Lemmen, C.H.J.; Vos, J.; Beentjes, B.

2017-01-01

This article in the special edition on blockchain and land transfer in the European Property Law Journal (EPLJ) discusses available standards in land administration and options for further standardisation, including standardisation of transactions of those rights, as a possible first step to

PROBLEMS DRAFTING OF LAND USE TO ESTABLISH THE LIMITS RESTRICTIONS IN THE USE OF LAND AND THE OBJECT WITH REGIME

Directory of Open Access Journals (Sweden)

Y.Dorosh

2016-10-01

Full Text Available Analyzed the legal framework of restrictions in land use and their regime facilities (laws, regulations, rules, regulations, standards and classifications. Found that the current classification provides for the conduct of State Land Cadastre is flawed because it does not cover all kinds of restrictions, making impossible to use it for practical purposes. Therefore, we proposed territorial restrictions in the use of land classified by types and species. The classification confirms expediency to distinguish meaningful component of the project land to establish limits restrictions in land use and their rezhymoutvoryuyuchyh objects from the standard procedure of development for all types of project documentation provided by the Law of Ukraine "On Land Management". The article contains an updated block model for the drafting of land to establish the limits of restrictions on land use and regime facilities.The project land boundaries to establish restrictions on land use and regime facilities include: 1 drafting task on land; 2 an explanatory note; 3 the decision of the local government of drafting; 4 characterization of the natural environment; 5 certificate containing a summary of land (territory; 6 Cartogram agro-industrial groups of soils and steep slopes; 7 geodetic surveys and materials of Land Management 8 information on the current state of land use and protection (including registered in the State Land Cadastre restrictions on land use; 9 description of the territory by establishing usage of land of natural reserve fund and other environmental protection, health, recreational, historical, cultural, forestry purposes, land and water resources protection zones, restrictions in land use and their regime facilities; 10 within the limits the settlement - a copy of the graphic part of the master plan of settlement (if applicable, and outside the village - a copy of the appropriate planning documentation (if any and a copy of the decision on the

E-Alerts: Environmental pollution and control (water pollution and control). E-mail newsletter

International Nuclear Information System (INIS)

1999-01-01

Topics of discussion include the following: Pollution by municipal wastes, agricultural wastes, industrial wastes, mine wastes, radioactive contaminants; Chemistry and analysis of pollutants; Thermal pollution; Oil pollution; Control techniques and equipment; Sewage treatment; Industrial waste water pretreatment; Hydrology and limnology; Biological and ecological effects; Waste water reuse; Laws, legislation, and regulations; Public administration; Economics; Land use

E-Alerts: Environmental pollution and control (water pollution and control). E-mail newsletter

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-04-01

Topics of discussion include the following: Pollution by municipal wastes, agricultural wastes, industrial wastes, mine wastes, radioactive contaminants; Chemistry and analysis of pollutants; Thermal pollution; Oil pollution; Control techniques and equipment; Sewage treatment; Industrial waste water pretreatment; Hydrology and limnology; Biological and ecological effects; Waste water reuse; Laws, legislation, and regulations; Public administration; Economics; Land use.

Motor control of landing from a countermovement jump in simulated microgravity.

OpenAIRE

Gambelli, C N; Theisen, D; Willems, Patrick; Schepens, Bénédicte

2016-01-01

Landing from a jump implies proper positioning of the lower limb segments and the generation of an adequate muscular force to cope with the imminent collision with the ground. This study assesses how a hypogravitational environment affects the control of landing after a countermovement jump (CMJ). Eight participants performed submaximal CMJs on Earth (1-g condition) and in a weightlessness environment with simulated gravity conditions generated by a pull-down force (1-, 0.6-, 0.4-, and 0.2-g0...

METHODOLOGICAL BASIS IMPOSING RESTRICTIONS IN LAND USE, BURDENED LAND RIGHTS DURING LAND TENURE

Directory of Open Access Journals (Sweden)

Dorosh J.

2016-05-01

Full Text Available The question of balanced consolidation of social legislation in a reasonable ratio of land rights and the interests of society as a whole, as well as local communities, citizens and legal entities established by them are general in nature and require specificity it is. Proved that one way of solving this problem is the establishment of restoictions of land rights, restrictions in land use. However, the mechanism of regulation establishment, implementation and termination of restrictions on the rights to land are not very functional and needs improvement. Current legislation in Ukraine does not contain a balanced set of regulations that would determine the nature and objectives of the restrictions, including encumbrances of land rights, their types, the reasons establishing and implementing restrictions of ownership and other rights to land and so on. Based on our analysis, we provide scientifically grounded suggestions on improving the legal framework, particularly, in terms of restrictions on land use and registration in the land management process, as an important means of influence on those rights in order to ensure rational land use and protection it is. Proved that the efficiency of administrative decisions during setting restrictions on land use purpose and usage of land is possible on the basis of land zoning, thus, it is necessary to adopt the Law of Ukraine "On land zoning." In addition, the current classification of land use restrictions, which was proposed by prominent scientists in Ukraine AM Tretyak (classification of restrictions in land use by functional features, and D.S. Dobryak and D.I. Babmindra (classification of restrictions on land use based on their placement by owners and land users, is complemented by types, namely: legal, environmental, ecological, technological, sanitation, urban and special. In the result of scientific studies,we have proposed a model of methodological process of land management actions on formation

Influences of Different Land Use Spatial Control Schemes on Farmland Conversion and Urban Development

Science.gov (United States)

Zhou, Min; Tan, Shukui; Zhang, Lu

2015-01-01

Land use planning is always officially implemented as an effective tool to control urban development and protect farmland. However, its impact on land use change remains untested in China. Using a case study of Hang-Jia-Hu region, the main objective of this paper was to investigate the influence of different land use spatial control schemes on farmland conversion and urban development. Comparisons of farmland conversion and urban development patterns between the urban planning area and the non-urban planning area were characterized by using remote sensing, geographical information systems, and landscape metrics. Results indicated that farmland conversion in the non-urban planning area was more intensive than that in the urban planning area, and that farmland patterns was more fragmented in the non-urban planning area. Built-up land patterns in the non-urban planning area showed a trend of aggregation, while those in the urban planning area had a dual trend of fragmentation and aggregation. Existing built-up areas had less influence on built-up land sprawl in the non-urban planning area than that in the urban planning area. Built-up land sprawl in the form of continuous development in the urban planning area led to farmland conversion; and in the non-urban planning area, built-up land sprawl in the form of leapfrogging development resulted in farmland areal declines and fragmentation. We argued that it is a basic requirement to integrate land use plans in urban and non-urban planning areas for land use planning and management. PMID:25915897

Influences of different land use spatial control schemes on farmland conversion and urban development.

Science.gov (United States)

Zhou, Min; Tan, Shukui; Zhang, Lu

2015-01-01

Land use planning is always officially implemented as an effective tool to control urban development and protect farmland. However, its impact on land use change remains untested in China. Using a case study of Hang-Jia-Hu region, the main objective of this paper was to investigate the influence of different land use spatial control schemes on farmland conversion and urban development. Comparisons of farmland conversion and urban development patterns between the urban planning area and the non-urban planning area were characterized by using remote sensing, geographical information systems, and landscape metrics. Results indicated that farmland conversion in the non-urban planning area was more intensive than that in the urban planning area, and that farmland patterns was more fragmented in the non-urban planning area. Built-up land patterns in the non-urban planning area showed a trend of aggregation, while those in the urban planning area had a dual trend of fragmentation and aggregation. Existing built-up areas had less influence on built-up land sprawl in the non-urban planning area than that in the urban planning area. Built-up land sprawl in the form of continuous development in the urban planning area led to farmland conversion; and in the non-urban planning area, built-up land sprawl in the form of leapfrogging development resulted in farmland areal declines and fragmentation. We argued that it is a basic requirement to integrate land use plans in urban and non-urban planning areas for land use planning and management.

Effects of Governance on Availability of Land for Agriculture and Conservation in Brazil.

Science.gov (United States)

Sparovek, Gerd; Barretto, Alberto Giaroli de Oliveira Pereira; Matsumoto, Marcelo; Berndes, Göran

2015-09-01

The 2012 revision of the Brazilian Forest Act changed the relative importance of private and public governance for nature conservation and agricultural production. We present a spatially explicit land-use model for Brazilian agricultural production and nature conservation that considers the spatial distribution of agricultural land suitability, technological and management options, legal command, and control frameworks including the Atlantic Forest Law, the revised Forest Act, and the Amazonian land-titling, "Terra Legal," and also market-driven land use regulations. The model is used to analyze land use allocation under three scenarios with varying priorities among agricultural production and environmental protection objectives. In all scenarios, the legal command and control frameworks were the most important determinants of conservation outcomes, protecting at least 80% of the existing natural vegetation. Situations where such frameworks are not expected to be effective can be identified and targeted for additional conservation (beyond legal requirements) through voluntary actions or self-regulation in response to markets. All scenarios allow for a substantial increase in crop production, using an area 1.5-2.7 times the current cropland area, with much of new cropland occurring on current pastureland. Current public arrangements that promote conservation can, in conjunction with voluntary schemes on private lands where conversion to agriculture is favored, provide important additional nature conservation without conflicting with national agricultural production objectives.

Active Tension Control for WT Wheelchair Robot by Using a Novel Control Law for Holonomic or Nonholonomic Systems

Directory of Open Access Journals (Sweden)

Jian Wang

2013-01-01

Full Text Available Interactional characteristics between WT wheelchair robot and stair environment are analyzed, and possible patterns of WT wheelchair robot during the stair-climbing process are summarized, with the criteria of the wheelchair robot for determining the pattern proposed. Aiming at WT wheelchair robot's complicated mechanism with holonomic constraints and combined with the computed torque method, a novel control law that is called active tension control is presented for holonomic or nonholonomic robotic systems, by which the wheelchair robot with a holonomic or nonholonomic mechanism can track the reference input of the constraint forces of holonomic or nonholonomic constraints as well as tracking the reference input of the generalized coordinate of each joint. A stateflow module of Matlab is used to simulate the entire stair-climbing process for WT wheelchair robot. A comparison of output curve with the reference input curve of each joint is made, with the effectiveness of the presented control law verified.

Sustainable Land Use, Soil Protection and Phosphorus Management from a Cross-National Perspective

Directory of Open Access Journals (Sweden)

Jessica Stubenrauch

2018-06-01

Full Text Available The scarcity of phosphorus (P is a global concern that is not restricted to western industrialized nations. Until now, most countries in the world are highly dependent on importing mineral P fertilizers for agriculture. The industrialized nation of Germany, the emerging economy of Costa Rica, and the developing country of Nicaragua are examined with regard to their legislation in the field of environmental protection and agriculture, in particular with regard to soil protection and fertilizer law. Based on the structure of agriculture in each country, control weaknesses in legislation in the individual countries, which is largely determined by command-and-control law, are identified and compared. It becomes clear that soil protection in all three countries has not yet been adequately standardised in law and at the same time the efficient use of organic or recycled P fertilizers instead of (finite mineral P fertilizers is inadequately regulated. In particular, frugality, i.e., the strategy of lower (and not only more efficient consumption of P fertilizers, has so far played no regulatory role in land-use governance.

Computational Study of Separation Control Using ZNMF Devices: Flow Physics and Scaling Laws

National Research Council Canada - National Science Library

Mittal, Rajat

2008-01-01

The primary objective of the proposed research was to gain a fundamental understanding of strategies, mechanisms, and scaling laws for successful control of separation using zern-net mass-flux (ZNMF) actuators...

Problems concerning the Federal Government-Laender relationship in nuclear law

International Nuclear Information System (INIS)

Lange, K.

1990-01-01

The Atomic Energy Act is characterized by extremely extensive powers of decision and sole responsibility of the executive. Its profile is determined by discretionary assessment powers in connection with the interpretation of the given preconditions of pertinent legal standards and by judically not verifiable assessment possibilities in connection with legal consequences. In this situation, the authority to instruct, given to the Federal Government within the framework of the execution of Federal laws by Laender according to the instructions of the Federal Government pursuant to section 85 III Basic Law, is of special, far-reaching significance. The article investigates the limitatations of the Federal Government's power to instruct Laender to carry out activities underlying Federal laws: The burden has to be bearable for the Laender, the directions have to be absolutely clear. The fruitlessness of a Federal Government-Laender court case, in which a Land turns to the Federal Constitutional Court because of an instruction which, in the Land's eyes, would lead it to act unlawfully, does not principally exclude a Land from seeking legal protection in the administrative courts of law. It can only be hoped that the Federal Government will make use of its powers to instruct Laender with the necessary sensitivity, also in those cases when Laender, according to an appropriate decision of the Federal Constitutional Court, cannot enforce by legal proceedings the state's obligation to act in line with legal order. (orig./HSCH) [de

Brief Comment on the Draft Land Administration, Use, Registration ...

African Journals Online (AJOL)

D_Behailu

The draft 'Land Administration, Use, Registration and Plan Proclamation (2007. EC)' has been in circulation for a while now. One of the prime objectives of the draft law is to address various counterproductive restrictions in the current federal land proclamation. According to its preamble, the draft aspires to expand the rights ...

China's Juvenile Delinquency Prevention Law: the law and the philosophy.

Science.gov (United States)

Lening Zhang; Jianhong Liu

2007-10-01

The present study introduces and discusses the Juvenile Delinquency Prevention Law of the People's Republic of China. The law was promulgated in the context of Chinese socioeconomic reforms and legal reforms in response to the rising delinquency since the early 1980s. The study explains the social and political background of the law with respect to the patterns of delinquency in China. The law has several main features that reflect the Chinese philosophical underpinnings of crime prevention and control, and the study discusses the connection between the law and the traditional Chinese philosophy and thinking. Finally, the study discusses the challenges to the enforcement of the law in Chinese society, which has lacked a legal tradition in its history.

Piloted Evaluation of Modernized Limited Authority Control Laws in the NASA-Ames Vertical Motion Simulator (VMS)

Science.gov (United States)

Sahasrabudhe, Vineet; Melkers, Edgar; Faynberg, Alexander; Blanken, Chris L.

2003-01-01

The UH-60 BLACK HAWK was designed in the 1970s, when the US Army primarily operated during the day in good visual conditions. Subsequently, the introduction of night-vision goggles increased the BLACK HAWK'S mission effectiveness, but the accident rate also increased. The increased accident rate is strongly tied to increased pilot workload as a result of a degradation in visual cues. Over twenty years of research in helicopter flight control and handling qualities has shown that these degraded handling qualities can be recovered by modifying the response type of the helicopter in low speed flight. Sikorsky Aircraft Corporation initiated a project under the National Rotorcraft Technology Center (NRTC) to develop modern flight control laws while utilizing the existing partial authority Stability Augmentation System (SAS) of the BLACK HAWK. This effort resulted in a set of Modernized Control Laws (MCLAWS) that incorporate rate command and attitude command response types. Sikorsky and the US Army Aeroflightdynamics Directorate (AFDD) conducted a piloted simulation on the NASA-Ames Vertical h4otion Simulator, to assess potential handling qualities and to reduce the risk of subsequent implementation and flight test of these modern control laws on AFDD's EH-60L helicopter. The simulation showed that Attitude Command Attitude Hold control laws in pitch and roll improve handling qualities in the low speed flight regime. These improvements are consistent across a range of mission task elements and for both good and degraded visual environments. The MCLAWS perform better than the baseline UH-60A control laws in the presence of wind and turbulence. Finally, while the improved handling qualities in the pitch and roll axis allow the pilot to pay more attention to the vertical axis and hence altitude performance also improves, it is clear from pilot comments and altitude excursions that the addition of an Altitude Hold function would further reduce workload and improve overall

Pollution law

International Nuclear Information System (INIS)

Triffterer, O.

1980-01-01

In the draft proposed by the legal advisory board the law for the controlling of environmental criminality was promulgated on 28th March 1980. The present commentary therefore - as seen from the results - corresponds in essential to the original assessment of the governmental draft. However, an introduction into the problems of environmental law precedes this commentary for the better unterstanding of all those not acquainted with pollution law and the whole legal matter. (orig./HP) [de

Knee Muscular Control During Jump Landing in Multidirections.

Science.gov (United States)

Sinsurin, Komsak; Vachalathiti, Roongtiwa; Jalayondeja, Wattana; Limroongreungrat, Weerawat

2016-06-01

Jump landing is a complex movement in sports. While competing and practicing, athletes frequently perform multi-planar jump landing. Anticipatory muscle activity could influence the amount of knee flexion and prepare the knee for dynamic weight bearing such as landing tasks. The aim of the present study was to examine knee muscle function and knee flexion excursion as athletes naturally performed multi-direction jump landing. Eighteen male athletes performed the jump-landing test in four directions: forward (0°), 30° diagonal, 60° diagonal, and lateral (90°). Muscles tested were vastus medialis (VM), vastus lateralis (VL), rectus femoris (RF), semitendinosus (ST), and biceps femoris (BF). A Vicon(TM) 612 workstation collected the kinematic data. An electromyography was synchronized with the Vicon(TM) Motion system to quantify dynamic muscle function. Repeated measure ANOVA was used to analyze the data. Jump-landing direction significantly influenced (P jump landing. A higher risk of knee injury might occur during lateral jump landing than forward and diagonal directions. Athletes should have more practice in jump landing in lateral direction to avoid injury. Landing technique with high knee flexion in multi-directions should be taught to jumpers for knee injury prevention.

Compulsory Land Acquisitions In Tanganyika Revisiting The British Colonial Expropriation Principles And Practices

Directory of Open Access Journals (Sweden)

Cletus Eligius Ndjovu

2015-08-01

Full Text Available Abstract The British took over Tanganyika from the Germans in 1919 after the First World War. In facilitating colonial economic policies the British Colonial Government enacted Land Ordinance Cap 113 of 1923 and Land Acquisition Ordinance Cap 118 of 1926. These laws facilitated the acquisition of native lands and considerably changed the way expropriation was handled leaving behind permanent marks on the later practice. The colonial practice exposed the inner most economic intents of the British government. Use of legal phrases like for public purpose embedded in the ordinance had multiple legal interpretations and loose definition befitting the colonial economic cravings of the time. Although major provisions of the colonial acquisition laws are reflected in the later laws evidence suggests that a few elements of colonial expropriation practices have also sneaked in as silent laws of expropriation but others have not. Quite a few practices had been deliberately discarded or inadvertently forgotten for lack of a political will to purify and emulate them or due to lack of good record keeping. Using historical data and archival records from the Tanzania National Archives this study explored colonial expropriations mainly by focusing on the principles laws practices and procedures used. The main objective of the study was to identify good practices used during the said era the intended and unintended consequences of these unreported practices especially those which need to be emulated by the current laws and practices. The study concluded by shedding light on bad practices which are being exercised to date uncritically but also acknowledging good colonial expropriation practices which existed then but could be emulated. First the study insists that public purpose clause in expropriation must be affected with good and fair intentions and a mechanism to check this be set. Secondly PAPs involvement in land acquisition and compensation negotiations

Alterations in land uses based on amendments to the Brazilian Forest Law and their influences on water quality of a watershed.

Science.gov (United States)

Rodrigues-Filho, J L; Degani, R M; Soares, F S; Periotto, N A; Blanco, F P; Abe, D S; Matsumura-Tundisi, T; Tundisi, J E; Tundisi, J G

2015-01-01

The amendments to the Forest Law proposed by the Brazilian government that allow partial substitution of forested areas by agricultural activities raised deep concern about the integrity of aquatic ecosystems. To assess the impacts of this alteration in land uses on the watershed, diffuse loads of total nitrogen (Nt) and total phosphorus (Pt) were estimated in Lobo Stream watershed, southeastern Brazil, based on export coefficients of the Model of Correlation between Land Use and Water Quality (MQUAL). Three scenarios were generated: scenario 1 (present scenario), with 30-meter-wide permanent preservation areas along the shore of water bodies and 50-meter-radius in springs; scenario 2, conservative, with 100-meter-wide permanent preservation areas along water bodies; and scenario 3, with the substitution of 20% of natural forest by agricultural activities. Results indicate that a suppression of 20% of forest cover would cause an increase in nutrient loads as well as in the trophic state of aquatic ecosystems of the watershed. This could result in losses of ecosystem services and compromise the quality of water and its supply for the basin. This study underlines the importance of forest cover for the maintenance of water quality in Lobo Stream watershed.

International Telecommunication Control: International Law and the Ordering of Satellite and Other Forms of International Broadcasting.

Science.gov (United States)

Smith, Delbert D.

The need for and the available alternatives for international telecommunication controls are examined, and a functional approach to this area of law is offered. Information from a number of areas is collected and examined as it relates to the basic problem. These areas include general principles of international law, the activities of the…

Terminal area automatic navigation, guidance and control research using the Microwave Landing System (MLS). Part 5: Design and development of a Digital Integrated Automatic Landing System (DIALS) for steep final approach using modern control techniques

Science.gov (United States)

Halyo, N.

1983-01-01

The design and development of a 3-D Digital Integrated Automatic Landing System (DIALS) for the Terminal Configured Vehicle (TCV) Research Aircraft, a B-737-100 is described. The system was designed using sampled data Linear Quadratic Gaussian (LOG) methods, resulting in a direct digital design with a modern control structure which consists of a Kalman filter followed by a control gain matrix, all operating at 10 Hz. DIALS uses Microwave Landing System (MLS) position, body-mounted accelerometers, as well as on-board sensors usually available on commercial aircraft, but does not use inertial platforms. The phases of the final approach considered are the localizer and glideslope capture which may be performed simultaneously, localizer and steep glideslope track or hold, crab/decrab and flare to touchdown. DIALS captures, tracks and flares from steep glideslopes ranging from 2.5 deg to 5.5 deg, selected prior to glideslope capture. Digital Integrated Automatic Landing System is the first modern control design automatic landing system successfully flight tested. The results of an initial nonlinear simulation are presented here.

State aid in the EU law and national law

Directory of Open Access Journals (Sweden)

Divljak Drago

2011-01-01

Full Text Available Due to emphasized negative implications, state aid in contemporary law is more and more the subject of legal rules of supra-national and international law, and consequently it is more and more frequently the subject of national laws. The systems of state aid are based on the principle of general non-allowedness of state aid, which is relativised with wide exceptions and the form of allowed and conditionally allowed forms of state aid. In the EU law, a complex and differentiated system of legal regime on state aid is created aimed at preventing the Member States to protect or promote their companies at the expense or harm of competition within the EU. Compared to the regulations that refer to subsidies and that are created at the international level, within the WTO, these regulations are much more detailed and they cover a wide spectrum of different forms of state aid. National laws are accepting the EU concept as a novelty, which is valid in particular for countries in the process of the EU integrations. This has been done in our law as well by enacting of the Law on state aid control. This Law regulates general conditions for granting, granting control, and utilization of state assistance, with the essential objective to establish and provide for competitive market conditions and introduction of order in the field that has not been regulated previously. At the same time, this means a successful fulfillment of the obligations related to pre-accession harmonization of this field, which is a necessary pre-condition for accession of our country into this group of countries since the EU standards and requirements have been fully observed with the above-mentioned Law.

Oblique-wing research airplane motion simulation with decoupling control laws

Science.gov (United States)

Kempel, Robert W.; Mc Neill, Walter E.; Maine, Trindel A.

1988-01-01

A large piloted vertical motion simulator was used to assess the performance of a preliminary decoupling control law for an early version of the F-8 oblique wing research demonstrator airplane. Evaluations were performed for five discrete flight conditions, ranging from low-altitude subsonic Mach numbers to moderate-altitude supersonic Mach numbers. Asymmetric sideforce as a function of angle of attack was found to be the primary cause of both the lateral acceleration noted in pitch and the tendency to roll into left turns and out of right turns. The flight control system was shown to be effective in generally decoupling the airplane and reducing the lateral acceleration in pitch maneuvers.

Experimental evaluation of the MIT-SNL period-generated minimum time control laws for the rapid adjustment of reactor power

International Nuclear Information System (INIS)

Bernard, J.A.; Kwok, K.S.; Menadier, P.T.; Thome, F.V.; Wyant, F.J.

1987-01-01

The rapid adjustment of reactor neutronic power has recently been achieved by developing control laws that determine the actuator mechanism velocity necessary to produce a specified reactor period. Designated as the 'MIT-SNL Period-Generated Minimum Time Control Laws,' these relations are closed-form expressions of general applicability. In particular, if there is no limitation on the available rate of change of reactivity, these laws can be used to achieve virtually any desired power profile including time optimal ones. The innovative aspect of these laws is that the rate of change of reactivity rather than the reactivity itself is used as the control signal. For example, relative to a time-optimal response, these laws function by altering the rate of change of reactivity so that the instantaneous period is stepped from infinity to its minimum allowed value, held at that value until the desired power level is attained, and then stepped back to infinity. The response is time-optimal because the power adjustment is continuously made at the maximum allowed rate

Land restitution through the lens of environmental law: Some ...

African Journals Online (AJOL)

Land reform in South Africa and the realisation of the section 25 property clause of the Constitution of South Africa, 1996 (hereafter the Constitution) is seen as an integral step in the democratisation process as well as in the social and economic empowerment of previously marginalised groups. For many, the true test for ...

76 FR 76180 - Notice of Realty Action: Termination of Segregation, Opening of Public Lands; Montana

Science.gov (United States)

2011-12-06

... the general mining laws prior to the date and time of restoration is unauthorized. Any such attempted..., location, and entry under the public land laws and the mining and mineral leasing laws. This order also opens 601.09 acres to the mining and mineral leasing laws. DATES: December 6, 2011. FOR FURTHER...

Peasant women and access to land : customary law, state law and gender-based ideology : the case of the Toba-Batak (North Sumatra)

NARCIS (Netherlands)

Simbolon, I.J.

1998-01-01

This study is about opportunities, constraints and strategies regarding access to land of peasant women who live in the changing Toba-Batak patrilineal community of North Sumatra. Their access to land is seen in the wider context of the ongoing pressure of land scarcity due to

An analytic-numerical method for the construction of the reference law of operation for a class of mechanical controlled systems

Science.gov (United States)

Mizhidon, A. D.; Mizhidon, K. A.

2017-04-01

An analytic-numerical method for the construction of a reference law of operation for a class of dynamic systems describing vibrations in controlled mechanical systems is proposed. By the reference law of operation of a system, we mean a law of the system motion that satisfies all the requirements for the quality and design features of the system under permanent external disturbances. As disturbances, we consider polyharmonic functions with known amplitudes and frequencies of the harmonics but unknown initial phases. For constructing the reference law of motion, an auxiliary optimal control problem is solved in which the cost function depends on a weighting coefficient. The choice of the weighting coefficient ensures the design of the reference law. Theoretical foundations of the proposed method are given.

32 CFR 644.530 - Conditions in conveying land suspected of contamination.

Science.gov (United States)

2010-07-01

... contamination. 644.530 Section 644.530 National Defense Department of Defense (Continued) DEPARTMENT OF THE ARMY... Contamination from Proposed Excess Land and Improvements § 644.530 Conditions in conveying land suspected of contamination. The following conditions, appropriately modified to conform to local law, will be included in...

Gender perspective in the implementation of the Victims and Land Restitution Law: a proposal for the characterization of women and girls victims of armed conflict in Colombia

Directory of Open Access Journals (Sweden)

Mariana Castrellón Pérez

2016-08-01

Full Text Available The purpose of this article is to present a methodological proposal to be included by local governments in their planning tools to implement the Victims and Land Restitution Law. Integral reparation measures on behalf of women who have been victimized by the armed actors have to recognize that the victimization oversees the violent episode and exacerbates inequality gaps and the effective enjoyment of rights between men and women. Hence, any attempt to characterize women survivors of the conflict must consider women’s situation in different areas of exclusion such as access to land and housing, educational level, economic independence, among others; as well as the different types of discrimination that women face during peace times. All this to formulate public policy that aims at preventing violence and repairing women in local territories.

Flight evaluation of advanced controls and displays for transition and landing on the NASA V/STOL systems research aircraft

Science.gov (United States)

Franklin, James A.; Stortz, Michael W.; Borchers, Paul F.; Moralez, Ernesto, III

1996-01-01

Flight experiments were conducted on Ames Research Center's V/STOL Systems Research Aircraft (VSRA) to assess the influence of advanced control modes and head-up displays (HUD's) on flying qualities for precision approach and landing operations. Evaluations were made for decelerating approaches to hover followed by a vertical landing and for slow landings for four control/display mode combinations: the basic YAV-8B stability augmentation system; attitude command for pitch, roll, and yaw; flightpath/acceleration command with translational rate command in the hover; and height-rate damping with translational-rate command. Head-up displays used in conjunction with these control modes provided flightpath tracking/pursuit guidance and deceleration commands for the decelerating approach and a mixed horizontal and vertical presentation for precision hover and landing. Flying qualities were established and control usage and bandwidth were documented for candidate control modes and displays for the approach and vertical landing. Minimally satisfactory bandwidths were determined for the translational-rate command system. Test pilot and engineer teams from the Naval Air Warfare Center, the Boeing Military Airplane Group, Lockheed Martin, McDonnell Douglas Aerospace, Northrop Grumman, Rolls-Royce, and the British Defense Research Agency participated in the program along with NASA research pilots from the Ames and Lewis Research Centers. The results, in conjunction with related ground-based simulation data, indicate that the flightpath/longitudinal acceleration command response type in conjunction with pursuit tracking and deceleration guidance on the HUD would be essential for operation to instrument minimums significantly lower than the minimums for the AV-8B. It would also be a superior mode for performing slow landings where precise control to an austere landing area such as a narrow road is demanded. The translational-rate command system would reduce pilot workload for

Neuromuscular Control Mechanisms During Single-Leg Jump Landing in Subacute Ankle Sprain Patients: A Case Control Study.

Science.gov (United States)

Allet, Lara; Zumstein, Franziska; Eichelberger, Patric; Armand, Stéphane; Punt, Ilona M

2017-03-01

Optimal neuromuscular control mechanisms are essential for preparing, maintaining, and restoring functional joint stability during jump landing and to prevent ankle injuries. In subacute ankle sprain patients, neither muscle activity nor kinematics during jump landing has previously been assessed. To compare neuromuscular control mechanisms and kinematics between subacute ankle sprain patients and healthy persons before and during the initial contact phase of a 25-cm single-leg jump. Case-control study. University hospital. Fifteen patients with grade I or II acute ankle sprains were followed up after 4 weeks of conservative management not involving physical therapy. Subjects performed alternately 3 single-leg forward jumps of 25 cm (toe-to-heel distance) barefoot. Their results were compared with the data of 15 healthy subjects. Electromyographic (EMG) activity of the musculus (m.) gastrocnemius lateralis, m. tibialis anterior, and m. peroneus longus as well as kinematics for ankle, knee, and hip joint were recorded for pre-initial contact (IC) phase, post-initial contact phase, and reflex-induced phase. The results showed that EMG activity of the 3 muscles did not differ between ankle sprain patients (n = 15) and healthy persons (n = 15) for any of the analyzed time intervals (all P > .05). However, during the pre-IC phase, ankle sprain patients presented less plantar flexion, as well as during the post-IC phase after jump landing, compared to healthy persons (P ankle joint can lead to neuromuscular control mechanism disturbances through which functional instability might arise. III. Copyright © 2017 American Academy of Physical Medicine and Rehabilitation. Published by Elsevier Inc. All rights reserved.

The effect of a 3-month prevention program on the jump-landing technique in basketball: a randomized controlled trial.

Science.gov (United States)

Aerts, Inne; Cumps, Elke; Verhagen, Evert; Wuyts, Bram; Van De Gucht, Sam; Meeusen, Romain

2015-02-01

In jump-landing sports, the injury mechanism that most frequently results in an injury is the jump-landing movement. Influencing the movement patterns and biomechanical predisposing factors are supposed to decrease injury occurrence. To evaluate the influence of a 3-mo coach-supervised jump-landing prevention program on jump-landing technique using the jump-landing scoring (JLS) system. Randomized controlled trial. On-field. 116 athletes age 15-41 y, with 63 athletes in the control group and 53 athletes in the intervention group. The intervention program in this randomized control trial was administered at the start of the basketball season 2010-11. The jump-landing training program, supervised by the athletic trainers, was performed for a period of 3 mo. The jump-landing technique was determined by registering the jump-landing technique of all athletes with the JLS system, pre- and postintervention. After the prevention program, the athletes of the male and female intervention groups landed with a significantly less erect position than those in the control groups (P < .05). This was presented by a significant improvement in maximal hip flexion, maximal knee flexion, hip active range of motion, and knee active range of motion. Another important finding was that postintervention, knee valgus during landing diminished significantly (P < .05) in the female intervention group compared with their control group. Furthermore, the male intervention group significantly improved (P < .05) the scores of the JLS system from pre- to postintervention. Malalignments such as valgus position and insufficient knee flexion and hip flexion, previously identified as possible risk factors for lower-extremity injuries, improved significantly after the completion of the prevention program. The JLS system can help in identifying these malalignments. Therapy, prevention, level 1b.

Optimal Land Use Management for Soil Erosion Control by Using an Interval-Parameter Fuzzy Two-Stage Stochastic Programming Approach

Science.gov (United States)

Han, Jing-Cheng; Huang, Guo-He; Zhang, Hua; Li, Zhong

2013-09-01

Soil erosion is one of the most serious environmental and public health problems, and such land degradation can be effectively mitigated through performing land use transitions across a watershed. Optimal land use management can thus provide a way to reduce soil erosion while achieving the maximum net benefit. However, optimized land use allocation schemes are not always successful since uncertainties pertaining to soil erosion control are not well presented. This study applied an interval-parameter fuzzy two-stage stochastic programming approach to generate optimal land use planning strategies for soil erosion control based on an inexact optimization framework, in which various uncertainties were reflected. The modeling approach can incorporate predefined soil erosion control policies, and address inherent system uncertainties expressed as discrete intervals, fuzzy sets, and probability distributions. The developed model was demonstrated through a case study in the Xiangxi River watershed, China's Three Gorges Reservoir region. Land use transformations were employed as decision variables, and based on these, the land use change dynamics were yielded for a 15-year planning horizon. Finally, the maximum net economic benefit with an interval value of [1.197, 6.311] × 109 was obtained as well as corresponding land use allocations in the three planning periods. Also, the resulting soil erosion amount was found to be decreased and controlled at a tolerable level over the watershed. Thus, results confirm that the developed model is a useful tool for implementing land use management as not only does it allow local decision makers to optimize land use allocation, but can also help to answer how to accomplish land use changes.

Optimal land use management for soil erosion control by using an interval-parameter fuzzy two-stage stochastic programming approach.

Science.gov (United States)

Han, Jing-Cheng; Huang, Guo-He; Zhang, Hua; Li, Zhong

2013-09-01

Soil erosion is one of the most serious environmental and public health problems, and such land degradation can be effectively mitigated through performing land use transitions across a watershed. Optimal land use management can thus provide a way to reduce soil erosion while achieving the maximum net benefit. However, optimized land use allocation schemes are not always successful since uncertainties pertaining to soil erosion control are not well presented. This study applied an interval-parameter fuzzy two-stage stochastic programming approach to generate optimal land use planning strategies for soil erosion control based on an inexact optimization framework, in which various uncertainties were reflected. The modeling approach can incorporate predefined soil erosion control policies, and address inherent system uncertainties expressed as discrete intervals, fuzzy sets, and probability distributions. The developed model was demonstrated through a case study in the Xiangxi River watershed, China's Three Gorges Reservoir region. Land use transformations were employed as decision variables, and based on these, the land use change dynamics were yielded for a 15-year planning horizon. Finally, the maximum net economic benefit with an interval value of [1.197, 6.311] × 10(9) $ was obtained as well as corresponding land use allocations in the three planning periods. Also, the resulting soil erosion amount was found to be decreased and controlled at a tolerable level over the watershed. Thus, results confirm that the developed model is a useful tool for implementing land use management as not only does it allow local decision makers to optimize land use allocation, but can also help to answer how to accomplish land use changes.

Geoportal as a way for monitoring land settlements

Directory of Open Access Journals (Sweden)

Наталя Бубир

2016-10-01

Full Text Available The use of geoportals will improve land monitoring through timely detection of changes in land conditions, mobility access to geospatial data. The result of cadastre geoportals analysis of leading countries, including France, Germany, Great Britain, Austria, USA, Canada, has indicated that their content is correlated to cadastre features in one country and often do not contain complex issues of land monitoring settlements. In Ukraine, there is no public online mapping resource of this topic. It is proposed to establish specialized geoportal monitoring land settlements for public use. The geoportal contents should include an interactive map of each settlement, text information about settlements, laws and regulations, data about existing land use, including land-use violations and carried out or planned environmental activities. An important component of this portal is a personal user panel (Personal office, where he can view, save, print information that is of interest to him, including application forms to the local land management. On this basis we have developed a geoportal monitoring land settlements of Stepnogorsk village council within the student’s research work as part of the relevant geoportals in Zaporizhzhia region. The portal main menu includes: Settlements of Zaporizhzhia region; Monitoring land settlements; Land environmental; Virtual Tour; News. Additional menu contains five tabs: Home (go to home page geoportals; laws; Maps; Photo Gallery; Personal office. Interactive maps of settlements are based on Google maps. Map content includes mapping settlement’s functional areas and distribution of adverse natural and anthropogenic processes. The main map’s advantage is active zone, clicking on which the user is able to see which process is unfavorable in the territory, and which intended purpose is in this land. The user can also edit the map by his personal office. Overall, portal development within student

NATURAL RESOURCE ABUNDANCE, EXPLOITATION AND AGITATION FOR RESOURCE CONTROL IN NIGERIA’S NIGER DELTA: A MARXIAN ANALYSIS

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Ogaboh AGBA

2014-06-01

Full Text Available Prolonged agitation for resource control in Nigeria’s Niger Delta has attracted increasing attention of academia and policy makers. Key issues are involved-fiscal federalism principles, resource control agitation strategies/intensities and politico-philosophical bases within constitutional and theoretical frameworks, past and present governments’ efforts aimed at resolving agitations by Niger Delta peoples for resource control have been examined from various traditional disciplinary perspectives in social sciences and humanities. This study explains conflicting postures of resources control, and dynamics of the struggle by applying fragments of the revolutionary Marxist ideology/ frameworks comprising Gramscian, Dialectical Materialism and the Frankfort School’s Critical Social and Neo-Marxist (conflict theoretical perspectives espoused by Lewis Coser and C. Wright Mills. We argue that sections of Nigeria’s laws (the Constitution, and 1978 Land Use Act that vested absolute land ownership/control authority on Nigeria’s Federal Government, among other obnoxious laws that promote marginalization of particular oppressed sections/strata of Nigeria’s population thereby provoking persistent conflicts, such laws are overdue for amendment. We recommend, among others, that: non-exploitative variety of federalism applied in Scandinavia (Norway, Switzerland, etc. should be implemented in Nigeria.

Effect of external disturbances and data rate on the response of an automatic landing system capable of curved trajectories

Science.gov (United States)

Sherman, W. L.

1975-01-01

The effects of steady wind, turbulence, data sample rate, and control-actuator natural frequency on the response of a possible automatic landing system were investigated in a nonstatistical study. The results indicate that the system, which interfaces with the microwave landing system, functions well in winds and turbulence as long as the guidance law contains proper compensation for wind. The system response was satisfactory down to five data samples per second, which makes the system compatible with the microwave landing system. No adverse effects were observed when actuator natural frequency was lowered. For limiting cases, those cases where the roll angle goes to zero just as the airplane touches down, the basic method for computing the turn-algorithm gains proved unsatisfactory and unacceptable landings resulted. Revised computation methods gave turn-algorithm gains that resulted in acceptable landings. The gains provided by the new method also improved the touchdown conditions for acceptable landings over those obtained when the gains were determined by the old method.

A combined stochastic feedforward and feedback control design methodology with application to autoland design

Science.gov (United States)

Halyo, Nesim

1987-01-01

A combined stochastic feedforward and feedback control design methodology was developed. The objective of the feedforward control law is to track the commanded trajectory, whereas the feedback control law tries to maintain the plant state near the desired trajectory in the presence of disturbances and uncertainties about the plant. The feedforward control law design is formulated as a stochastic optimization problem and is embedded into the stochastic output feedback problem where the plant contains unstable and uncontrollable modes. An algorithm to compute the optimal feedforward is developed. In this approach, the use of error integral feedback, dynamic compensation, control rate command structures are an integral part of the methodology. An incremental implementation is recommended. Results on the eigenvalues of the implemented versus designed control laws are presented. The stochastic feedforward/feedback control methodology is used to design a digital automatic landing system for the ATOPS Research Vehicle, a Boeing 737-100 aircraft. The system control modes include localizer and glideslope capture and track, and flare to touchdown. Results of a detailed nonlinear simulation of the digital control laws, actuator systems, and aircraft aerodynamics are presented.

Knee Control and Jump-Landing Technique in Young Basketball and Floorball Players.

Science.gov (United States)

Leppänen, M; Pasanen, K; Kulmala, J-P; Kujala, U M; Krosshaug, T; Kannus, P; Perttunen, J; Vasankari, T; Parkkari, J

2016-04-01

Poor knee alignment is associated with increased loading of the joints, ligaments and tendons, and may increase the risk of injury. The study purpose was to compare differences in knee kinematics between basketball and floorball players during a vertical drop jump (VDJ) task. We wanted to investigate whether basketball players, whose sport includes frequent jump-landings, exhibited better knee control compared with floorball players, whose sport involves less jumping. Complete data was obtained from 173 basketball and 141 floorball players. Peak knee valgus and flexion angles during the VDJ were analyzed by 3D motion analysis.Larger knee valgus angles were observed among basketball players (- 3.2°, 95%CI -4.5 to - 2.0) compared with floorball players (- 0.9°, 95%CI -2.3 to 0.6) (P=0.022). Basketball players landed with a decreased peak knee flexion angle (83.1°, 95%CI 81.4 to 84.8) compared with floorball players (86.5°, 95%CI 84.6 to 88.4) (P=0.016). There were no significant differences in height, weight or BMI between basketball and floorball players. Female athletes exhibited significantly greater valgus angles than males. This study revealed that proper knee control during jump-landing does not seem to develop in young athletes simply by playing the sport, despite the fact that jump-landings occur frequently in practice and games. © Georg Thieme Verlag KG Stuttgart · New York.

Active Power Filter DC Bus Voltage Piecewise Reaching Law Variable Structure Control

OpenAIRE

Liu, Baolian; Ding, Zujun; Zhao, Huanyu; Jin, Defei

2014-01-01

The DC bus voltage stability control is one key technology to ensure that Active Power Filter (APF) operates stably. The external disturbances such as power grid and load fluctuation and the system parameters changing may affect the stability of APF DC bus voltage and the normal operation of APF. The mathematical model of DC bus voltage is established according to power balance principle and a DC bus voltage piecewise reaching law variable structure control algorithm is proposed to solve the ...

Romanian procedural and administrative particularities of the sale of lands to foreign persons

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Titus Prescure

2016-06-01

Full Text Available This study aims to examine the particularities of the procedures and legal instruments through which foreign persons, in the broadest sense of this term, may acquire, especially through sale-purchase contracts, agricultural lands situated outside of the built-up area, after Romania joined the European Union (1st of January, 2007. Likewise, this paper analyses specific international private law problems that may arise in relation with the application of the Romanian law regarding the legal transfer of agricultural and non-agricultural lands.

The promotion and control functions of atomic energy law

International Nuclear Information System (INIS)

Roser, T.

1998-01-01

The question about the purpose of atomic energy law may sound superfluous in Germany, a country where a highly differential legal framework for the peaceful utilization of nuclear power has existed for nearly 40 years in the Basic Law, the Atomic Energy Act, and its ordinances, and a comprehensive body of case laws. Yet, it is justified in view of the declared intention of the German federal government to establish an environmental code into which atomic energy law, hitherto an independent branch of the law, would be integrated, and it is justified also in view of persistent complaints that the present rules and regulations stifled investment activities. A look into some codes of law may help answer the question. Already in 1959, the authors of the Atomic Energy Act outlined the purposes of the legislation in relatively clear terms in Section 1. Besides the two foreign policy aspects of security and loyalty under treaties, which do not concern us in this connection, the key purposes of atomic energy law are stated there as promotion and protection. The protection purpose, which implies the need to protect life, health, and property from the hazards of nuclear energy and harmful effects of ionizing radiation, ranks second in the Act. In accordance with the ruling in 1972 of the Federal Administrative Court, however, it should rank at the top. (orig.) [de

Who owns the Moon? extraterrestrial aspects of land and mineral resources ownership

CERN Document Server

Pop, Virgiliu

2008-01-01

This work investigates the permissibility and viability of property rights on the celestial bodies, particularly the extraterrestrial aspects of land and mineral resources ownership. In lay terms, it aims to find an answer to the question "Who owns the Moon?" After critically analyzing and dismantling with legal arguments the trivial issue of sale of extraterrestrial real estate, the book addresses the apparent silence of the law in the field of landed property in outer space, scrutinizing whether the factual situation on the extraterrestrial realms calls for legal regulations. The legal status of asteroids and the relationship between appropriation under international law and civil law appropriation are duly examined, as well as different property patterns – such as the commons regime, the Common Heritage of the Mankind, and the Frontier paradigm. Virgiliu Pop is one of world's specialists in the area of space property rights. A member of the International Institute of Space Law, Virgiliu has authored seve...

Aspects of Land Administration in the Context of Good Governance

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G Pienaar

2009-07-01

Full Text Available Recent international developments have emphasised the importance of good governance in land administration. Good governance practices are inter alia predictable, open and enlightened policy-making; accountable and transparent processes; a professional ethos that combats corruption, bias, nepotism and personal gain; and strict financial control and management of funding. This paper explores aspects of land administration where public funding and interests necessitate the application of good governance practices. The South African land reform programme is divided in three sub-programmes, namely land restitution, land redistribution and tenure reform. Land reform is a vast subject, based on policy, legislation and case law. Therefore it is impossible to deal with good governance principles over the wide spectrum of land reform. Special attention is however given to the land restitution programme in terms of the Restitution of Land Rights Act 22 of 1994 and tenure reform in the rural areas by means of the Communal Land Rights Act 11 of 2004. The purpose is not to formulate a blueprint for good governance or to indicate which good governance principles will solve all or most of the land tenure problems. It is rather an effort to indicate that policies and procedures to improve good governance in some aspects of land reform are urgently needed and should be explored further. The three land tenure programmes have been introduced with some degree of success. Legislation promulgated in terms of these programmes, especially the Restitution of Land Rights Act and the Communal Land Rights Act, is extensive and far-reaching. However, many legislative measures are either impractical due to financial constraints and lack of capacity of the Department of Land Affairs, or are not based on sufficient participation by local communities. Land administration should furthermore be planned and executed in the context of global good governance practices. This includes

External Costs as Driving Forces of Land Use Changes

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Dirk Loehr

2010-04-01

Full Text Available Land conversion is often not carried out in a sustainable way. The loss of arable land and biodiversity, concern about food security and rising costs of infrastructure due to urban sprawl are just some of the problems under discussion. This paper compares Germany, China and Cambodia. The article points out that, despite huge differences in institutions and governance, unsustainable land use changes mostly have some patterns in common: The beneficiaries of land conversion are often well-organized actors, whereas the costs of land conversion are often shifted to poorly organized groups and to society as a whole. A sustainable land use policy has to look for a better coupling of benefits and costs of land use changes. In order to achieve this goal, the article suggests completing the planning law with a suitable economic framework.

The passage of tobacco control law 174 in Lebanon: reflections on the problem, policies and politics.

Science.gov (United States)

Nakkash, R T; Torossian, L; El Hajj, T; Khalil, J; Afifi, R A

2018-06-01

Progress in tobacco control policy making has occurred worldwide through advocacy campaigns involving multiple players- civil society groups, activists, academics, media and policymakers. The Framework Convention on Tobacco Control (FCTC)-the first ever global health treaty-outlines evidence-based tobacco control policies. Lebanon ratified the FCTC in 2005, but until 2011, tobacco control policies remained rudimentary and not evidence-based. Beginning in 2009, a concerted advocacy campaign was undertaken by a variety of stakeholders with the aim of accelerating the process of adopting a strong tobacco control policy. The campaign was successful, and Law 174 passed the Lebanese Parliament in August 2011. In this article, we analyse the policy making process that led to the adoption of Law 174 using Kingdon's model. The analysis relies on primary and secondary data sources including historical records of key governmental decisions, documentation of the activities of the concerted advocacy campaign and in-depth interviews with key stakeholders. We describe the opening of a window of opportunity as a result of the alignment of the problem, policy and politics streams. Furthermore, findings revealed that despite the challenge of persistent tobacco industry interference and established power relations between the industry, its allies and policymakers; policy entrepreneurs succeeded in supporting the alignment of the streams, and influencing the passage of the law. Kingdon's multiple stream approach was useful in explaining how tobacco control became an emerging policy issue at the front of the policy agenda in Lebanon.

Sociodemographic characteristics and aggression quotient among children in conflict with the law in India: A case-control study.

Science.gov (United States)

Gupta, Archit; Biddala, Ooha Susmita; Dwivedi, Mandavi; Variar, Prathyaksha; Singh, Aparna; Sen, Soham; Bhat, P Shivaram; Kunte, Renuka; Nair, Velu; Shankar, Subramanian

2015-01-01

The incidence of juvenile delinquency has increased in the past decade in India and juvenile crimes are increasingly being reported. This has been attributed to many biopsychosocial factors. It is essential to understand these issues in the context of India to determine the response of acts of children in conflict with the law. We aimed to assess the sociodemographic characteristics and the aggression quotient of children in conflict with the law (juvenile delinquents) in observation homes across India and compare them with those who were not. We did a case-control study in five juvenile homes in the cities of Hyderabad, Lucknow and Pune. Ninety inmates (74 boys, 16 girls) were included in the study. Sociodemographic characteristics and aggression quotient of children in conflict with the law were evaluated using two separate questionnaires, i.e. a sociodemographic questionnaire and the modified Buss and Perry aggression questionnaire. These were compared with a control group of similar age, sex and income status. All the children in conflict with the law surveyed belonged to the lower socioeconomic strata, had a significantly higher chance (pbroken homes, have addictions, jailed family members and suffered physical and sexual abuse than controls. They also scored higher on all domains of the aggression questionnaire than controls. A collection of sociodemographic attributes such as broken homes, addictions and abuse seem to have an important association with juvenile delinquency. Children in conflict with the law are also more likely to be associated with a higher aggression quotient as compared to children who were not. Copyright 2015, NMJI.

LAND REFORM IN UKRAINE: HISTORIOGRAPHICAL ANALYSIS

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Barantsov B.

2016-05-01

��s adoption appeared legal framework that allows you to create land market. The Land Code of Ukraine solved question of compliance of Constitution of Ukraine, harmony between rules of the Land Code with rules of land laws and decrees of President of Ukraine. It contains rules of directly of direct action, in contrast to the general declarations. The next step in the development of land relations on the period of 2011 - 2020 years became Decree of the Cabinet of Ministers of Ukraine from 26.10.2011 y. № 1072-р «On approval of the action plan for land reform and create a transparent market of agricultural land» This plan envisages simplification of procedures for establishing of the boundaries of settlements, on amendments to some legislative acts of Ukraine concerning the abolition of free land privatization, about analyzing, systematization, organizing, organizing and bringing to a common electronic format of cadastral information; draft resolution on approval of documents regulating the administration of state land cadastre, approval of the Concept of the National Program of land use and protection, ect. One of the final stages of the land reform in agriculture should be the implementation of land market. The historical review of land reform, evaluation of its positive results and negative effects allow asserting, that in general it was carried overly inconsistently and not always scientifically substantiated. Its end result, due to the transition to a market economy, would be sharing and transfer of land to peasants to private ownership, establishment on this basis of market-oriented farms, implementation of fully functioning land market. The intermediate stages (the transfer of land to collective ownership, issuance of land certificates only slowed reform, the numerous laws and regulations confused its essence and caused many irregularities in land relations.

Waste Isolation Pilot Plant, Land Management Plan

International Nuclear Information System (INIS)

1993-01-01

To reflect the requirement of section 4 of the Wastes Isolation Pilot Plant Land Withdrawal Act (the Act) (Public Law 102-579), this land management plan has been written for the withdrawal area consistent with the Federal Land Policy and Management Act of 1976. The objective of this document, per the Act, is to describe the plan for the use of the withdrawn land until the end of the decommissioning phase. The plan identifies resource values within the withdrawal area and promotes the concept of multiple-use management. The plan also provides opportunity for participation in the land use planning process by the public and local, State, and Federal agencies. Chapter 1, Introduction, provides the reader with the purpose of this land management plan as well as an overview of the Waste Isolation Pilot Plant. Chapter 2, Affected Environment, is a brief description of the existing resources within the withdrawal area. Chapter 3, Management Objectives and Planned Actions, describes the land management objectives and actions taken to accomplish these objectives

Waste Isolation Pilot Plant, Land Management Plan

Energy Technology Data Exchange (ETDEWEB)

1993-12-01

To reflect the requirement of section 4 of the Wastes Isolation Pilot Plant Land Withdrawal Act (the Act) (Public Law 102-579), this land management plan has been written for the withdrawal area consistent with the Federal Land Policy and Management Act of 1976. The objective of this document, per the Act, is to describe the plan for the use of the withdrawn land until the end of the decommissioning phase. The plan identifies resource values within the withdrawal area and promotes the concept of multiple-use management. The plan also provides opportunity for participation in the land use planning process by the public and local, State, and Federal agencies. Chapter 1, Introduction, provides the reader with the purpose of this land management plan as well as an overview of the Waste Isolation Pilot Plant. Chapter 2, Affected Environment, is a brief description of the existing resources within the withdrawal area. Chapter 3, Management Objectives and Planned Actions, describes the land management objectives and actions taken to accomplish these objectives.

Promotion of inclusive land governance to improve women's land ...

International Development Research Centre (IDRC) Digital Library (Canada)

The general objective of this action research project is to help increase women's access to and control over land and their involvement in decision-making for responsible, sustainable land governance, in the context of large-scale land acquisition in Senegal. Its objectives are to establish the conditions to improve women's ...

ORACLS: A system for linear-quadratic-Gaussian control law design

Science.gov (United States)

Armstrong, E. S.

1978-01-01

A modern control theory design package (ORACLS) for constructing controllers and optimal filters for systems modeled by linear time-invariant differential or difference equations is described. Numerical linear-algebra procedures are used to implement the linear-quadratic-Gaussian (LQG) methodology of modern control theory. Algorithms are included for computing eigensystems of real matrices, the relative stability of a matrix, factored forms for nonnegative definite matrices, the solutions and least squares approximations to the solutions of certain linear matrix algebraic equations, the controllability properties of a linear time-invariant system, and the steady state covariance matrix of an open-loop stable system forced by white noise. Subroutines are provided for solving both the continuous and discrete optimal linear regulator problems with noise free measurements and the sampled-data optimal linear regulator problem. For measurement noise, duality theory and the optimal regulator algorithms are used to solve the continuous and discrete Kalman-Bucy filter problems. Subroutines are also included which give control laws causing the output of a system to track the output of a prescribed model.

Knee movement patterns of injured and uninjured adolescent basketball players when landing from a jump: A case-control study

Directory of Open Access Journals (Sweden)

Grimmer Karen

2006-03-01

Full Text Available Abstract Background A common knee injury mechanism sustained during basketball is landing badly from a jump. Landing is a complex task and requires good coordination, dynamic muscle control and flexibility. For adolescents whose coordination and motor control has not fully matured, landing badly from a jump can present a significant risk for injury. There is currently limited biomechanical information regarding the lower limb kinetics of adolescents when jumping, specifically regarding jump kinematics comparing injured with uninjured adolescents. This study reports on an investigation of biomechanical differences in landing patterns of uninjured and injured adolescent basketball players. Methods A matched case-control study design was employed. Twenty-two basketball players aged 14–16 years participated in the study: eleven previously knee-injured and eleven uninjured players matched with cases for age, gender, weight, height and years of play, and playing for the same club. Six high-speed, three-dimensional Vicon 370 cameras (120 Hz, Vicon biomechanical software and SAS Version 8 software were employed to analyse landing patterns when subjects performed a "jump shot". Linear correlations determined functional relationships between the biomechanical performance of lower limb joints, and paired t-tests determined differences between the normalised peak biomechanical parameters. Results The average peak vertical ground reaction forces between the cases and controls were similar. The average peak ground reaction forces between the cases and controls were moderately correlated (r = -0.47. The control (uninjured players had significantly greater hip and knee flexion angles and significantly greater eccentric activity on landing than the uninjured cases (p Conclusion The findings of the study indicate that players with a history of knee injuries had biomechanically compromised landing techniques when compared with uninjured players matched for

Creation and cessation of the land ownership right - legal forms

OpenAIRE

Celerýn, Jakub

2009-01-01

I chose for my diploma thesis the theme which is called "Creation and cessation of the land ownership right - legal forms". The aim of the work is to give complex and complete description of basic legal forms of acquiring ownership right to land. The presented work is divided into ten chapters. The first part (second chapter) of the diploma thesis determines the concepts of "ownership", "real estate", "land", "plot" etc. According to Czech law concept of "real estate" means mainly under groun...

Loopholes of laws and regulations related to redevelopment of former sites of radioactive material control area

International Nuclear Information System (INIS)

Akatsuka, Hiroshi

2003-01-01

We found loopholes of laws and regulations for supervising radioactive materials. It is not obliged to measure the soil radioactivity of the sites that were formerly used as scientific or engineering institutes, or hospitals with a radioactive material control area. If the former institutes or hospitals made studies with radioactive materials before the enforcement of the law concerning prevention from radiation hazards due to isotopes and its detailed regulations, it is concluded that there was the period when the radioactive materials were not under management. If it is found that the radioactive materials were applied at the former site before the enforcement of the related laws and regulations, the radioactivity in the soil of the redeveloped area should be examined, which should be obliged by some laws or regulations. (author)

The Lived Space: Possession, Ownership, and Land Sales on the Chilean Frontier (Valdivia, 1790-1830

Directory of Open Access Journals (Sweden)

Manuel Bastias Saavedra

2018-01-01

Full Text Available By looking into sales of indigenous land in the territory of Valdivia between 1790 and 1830, this article discusses how legal interactions were tied to the local spaces of rural habitation. Since ownership was linked with possession and use in Spanish colonial law, local social relations and shared local knowledge were crucial for determining legal ownership and ensuring the validity of land transfers. This article provides insights into how law operated in newly integrated colonial spaces, and reveals that land transfers did not yet constitute purely contractual relations but were instead socially negotiated transactions involving different levels of authority and dependency.

Problems of administration of ACCOUNTING OF QUALITY OF LANDs in system of state land of Ukraine

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Tykhenko O.V.

2016-08-01

Full Text Available Conditions of land resources of Ukraine and quality of soil getting worse, increasing areas of technogenic pollution. Uncontrolled land use leads to deterioration of soil fertility. To maintain a high level of natural properties of lands is necessary to monitor over their use, which can be achieved by accounting of land quality. Information about the quantity and quality of lands summarizing by the central executive authority that implements the state policy in the sphere of land relations. Summarized information on the quantity and quality of land on gratis personnel provided to state authorities and local governments according to Order of conducting of State Land Cadastre. One of the main problems of accounting quality of lands is in Ukraine now is not only the absence of regulatory documents, but also the reliability of available information According to it’s providing is necessary of availability of actual information about the status of land resources. The absence of qualitative characteristics land plots in cadastral system complicates state control over land use and protection, because there are no grounds for levy fines for the catastrophic decline of soil fertility. One of the layers of Public Cadastral Map of Ukraine are soils. Nowadays is approved by the Cabinet of Ministers of Ukraine ( № 1051 nomenclature list of agro-industrial group of soils, which includes 222 of the agro groups with deciphering by granulometric composition. If with soil units identified, so the indicators that characterize them more difficult. That indicators, which were the basis for accounting of the quality of lands should check up to modern realities and condition of soils. According to the Law of Ukraine "On Land Protection", in the field of land protection and restoration of soil fertility establishes the following standards: maximum allowable soil contamination; qualitative condition of soils; the optimum ratio of lands; indicators of land and soils

The effect of gun control laws on hospital admissions for children in the United States.

Science.gov (United States)

Tashiro, Jun; Lane, Rebecca S; Blass, Lawrence W; Perez, Eduardo A; Sola, Juan E

2016-10-01

Gun control laws vary greatly between states within the United States. We hypothesized that states with strict gun laws have lower mortality and resource utilization rates from pediatric firearms-related injury admissions. Kids' Inpatient Database (1997-2012) was searched for accidental (E922), self-inflicted (E955), assault (E965), legal intervention-related (E970), or undetermined circumstance (E985) firearm injuries. Patients were younger than 20 years and admitted for their injuries. Case incidence trends were examined for the study period. Propensity score-matched analyses were performed using 38 covariates to compare outcomes between states with strict or lenient gun control laws. Overall, 38,424 cases were identified, with an overall mortality of 7%. Firearm injuries were most commonly assault (64%), followed by accidental (25%), undetermined circumstance (7%), or self-inflicted (3%). A small minority involved military-grade weapons (0.2%). Most cases occurred in lenient gun control states (48%), followed by strict (47%) and neutral (6%).On 1:1 propensity score-matched analysis, in-hospital mortality by case was higher in lenient (7.5%) versus strict (6.5%) states, p = 0.013. Lenient states had a proportionally higher rate of accidental (31%) and self-inflicted injury (4%) versus strict states (17% and 1.6%, respectively), p gun control contributes not only to worse outcomes per case, but also to a more significant and detrimental impact on public health. Epidemiologic study, level III.

A new lunar absolute control point: established by images from the landing camera on Chang'e-3

International Nuclear Information System (INIS)

Wang Fen-Fei; Liu Jian-Jun; Li Chun-Lai; Ren Xin; Mu Ling-Li; Yan Wei; Wang Wen-Rui; Xiao Jing-Tao; Tan Xu; Zhang Xiao-Xia; Zou Xiao-Duan; Gao Xing-Ye

2014-01-01

The establishment of a lunar control network is one of the core tasks in selenodesy, in which defining an absolute control point on the Moon is the most important step. However, up to now, the number of absolute control points has been very sparse. These absolute control points have mainly been lunar laser ranging retroreflectors, whose geographical location can be observed by observations on Earth and also identified in high resolution lunar satellite images. The Chang'e-3 (CE-3) probe successfully landed on the Moon, and its geographical location has been monitored by an observing station on Earth. Since its positional accuracy is expected to reach the meter level, the CE-3 landing site can become a new high precision absolute control point. We use a sequence of images taken from the landing camera, as well as satellite images taken by CE-1 and CE-2, to identify the location of the CE-3 lander. With its geographical location known, the CE-3 landing site can be established as a new absolute control point, which will effectively expand the current area of the lunar absolute control network by 22%, and can greatly facilitate future research in the field of lunar surveying and mapping, as well as selenodesy

Perish, then publish: Thomas Harriot and the sine law of refraction.

Science.gov (United States)

Fishman, R S

2000-03-01

A talented young scientist, Thomas Harriot, wrote the first English account of the New World, "A Briefe and True Report of the New Found Land of Virginia," distinguished by its serious effort to describe and understand the American Indian. Harriot went on to make innovations in mathematics and was one of the first astronomers to use the telescope. His largely unappreciated contribution to the history of ophthalmology was the first formulation of the sine law of refraction of light, found in his unpublished papers long after his death in 1621. Willebrord Snell discovered the sine law in Holland in 1621 but also died without formally publishing it. Rene Descartes first published the sine law in 1637. The sine law of refraction became not only the prime law of all lens systems but ushered in a new world of physical laws.

National Satellite Land Remote Sensing Data Archive

Science.gov (United States)

Faundeen, John L.; Longhenry, Ryan

2018-06-13

The National Satellite Land Remote Sensing Data Archive is managed on behalf of the Secretary of the Interior by the U.S. Geological Survey’s Earth Resources Observation and Science Center. The Land Remote Sensing Policy Act of 1992 (51 U.S.C. §601) directed the U.S. Department of the Interior to establish a permanent global archive consisting of imagery over land areas obtained from satellites orbiting the Earth. The law also directed the U.S. Department of the Interior, delegated to the U.S. Geological Survey, to ensure proper storage and preservation of imagery, and timely access for all parties. Since 2008, these images have been available at no cost to the user.

Adaptive Disturbance Rejection Control for Automatic Carrier Landing System

Directory of Open Access Journals (Sweden)

Xin Wang

2016-01-01

Full Text Available An adaptive disturbance rejection algorithm is proposed for carrier landing system in the final-approach. The carrier-based aircraft dynamics and the linearized longitudinal model under turbulence conditions in the final-approach are analyzed. A stable adaptive control scheme is developed based on LDU decomposition of the high-frequency gain matrix, which ensures closed-loop stability and asymptotic output tracking. Finally, simulation studies of a linearized longitudinal-directional dynamics model are conducted to demonstrate the performance of the adaptive scheme.

Obstacles on the road to ancestral land : The long-lasting lack of compliance with the Judgments of the Inter-American Court of Human Rights involving indigenous land rights: causes and consequences

NARCIS (Netherlands)

Meijknecht, A.K.

2015-01-01

It becomes increasingly clear that not the recognition but the implementation of indigenous people’s rights to land and natural resources constitutes the real challenge for international law. This chapter aims to explore the post-judgment phase of the Courts’ indigenous peoples’ land rights

Parameter optimization of thermal-model-oriented control law for PEM fuel cell stack via novel genetic algorithm

International Nuclear Information System (INIS)

Li Xi; Deng Zhonghua; Wei Dong; Xu Chunshan; Cao Guangyi

2011-01-01

Highlights: →We build up the thermal expressions of PEMFC stack. → The expressions are converted into the affine state space control-oriented model for the VSC strategy. → The NGA is developed to optimize the parameter of thermal-model-oriented control law. → Numerical results demonstrate the effectiveness and rationality of the method proposed. - Abstract: It is critical to understand and manage the thermal effects in optimizing the performance and durability of proton exchange membrane fuel cell (PEMFC) stack. And building up the control-oriented thermal model of PEMFC stack is necessary. The thermal model, a set of differential equations, is established according to the conservation equations of mass and energy, which can be used to reflect truly the actual temperature response of PEMFC stack, however, the expressions of the model are too complicated to be used in the design of control. For this reason, the expressions are converted into the affine state space control-oriented model in detail for the variable structure control (VSC) strategy. Meanwhile, the accurate model must be established for the VSC and the parameters of VSC laws should be optimized. Consequently, a novel genetic algorithm (NGA) is developed to optimize the parameter of thermal-model-oriented control law for PEMFC stack. Finally, numerical test results demonstrate the effectiveness and rationality of the method proposed in this paper. It lays the foundation for the realization of online thermal management of PEMFC stack based on VSC.

A Control Law Definition of the Open Loop Stepping Electric Drive

Directory of Open Access Journals (Sweden)

A. B. Krasovskii

2015-01-01

Full Text Available The paper considers an open loop stepping electric drive (SEP with electric crushing of a step and motor fed from the controlled current invertor which should meet the requirement that is to trial a free-form guided trajectory with a split-hair accuracy. It is shown that with traditional programmed control, when the SEP forms motor phase currents of identical amplitude and variable frequency proportional to the set speed of movement, there may be considerable errors reducing a trial accuracy of the set movement trajectory, dynamic indicators provoking oscillatory processes, and even loss of motor synchronism because influence on a dynamic moment of the motor is impossible.The paper offers and proves a new way to define a control algorithm adequate to drive parameters and programmed trajectory of movement, providing error minimization and thereby increasing trial accuracy of set parameters of movement and expanding dynamic capabilities of a drive. The essence of the offered way is to use a modified mathematical model of a drive in d,q coordinates with a motor fed by the current source. In this model a programmed trajectory of movement is chosen as an input action while solving the appropriate equations defines the necessary law of control. The paper describes a developed simulation model of the stepping electric drive in the environment of MATLAB – SIMULINK, which has been used to verify and prove an efficiency of the offered method to define a control law via typical examples.It is established that no error trial of set movement trajectory in case it has breaks (jogs is technically unfeasible, as it demands an infinitely high forcing voltage of the power supply to maintain the instant positive or negative phase shifts of currents formed in the motor windings.The obtained results can be used in designing programmable precision SEPs in robots, numerically controlled machine tools, and assembly equipment.

Accounting and methodical approaches to display law permanent and temprorary use of land assets

Directory of Open Access Journals (Sweden)

T.P. Ostapchuk

2015-12-01

Full Text Available The uniqueness of the land resources as an economic category determines the specific construction of the system of accounting which involves the accumulation, systematization, processing and analysis of economic information on quantitative, qualitative, money indicators and legal information about these objects. A large number of lands used by many entities on the rights of permanent or temporary use. Taking into account the need to use temporarily borrowed land resources by business entities, there is a need to develop general methods of displaying operations with limited real rights on accounts of both the land owners and their users. The article researches the question of theoretical and methodical aspects of accounting displaying permanent and temporary rights to use land assets in Ukraine. It examines the issue of economic and legal nature of these rights, the peculiarities of legal regulation of transactions with them. The paper deals with the procedure of their receiving and its impact on the accounting software. The author analyzes the existing approaches of other authors and proposes her own position.

Tamarisk control on public lands in the desert of southern California: two case studies

Science.gov (United States)

1994-01-01

As a land manager, the Federal Government faces enormous challenges from exotic pest invasions and associated changes to the structure and stability of native ecosystems (Bureau of Land Management, 1988). On public lands administered by the Bureau of Land Management (BLM) alone, it is estimated that almost three million hectares are occupied by invasive exotic plant species (weeds). Assuming an annual rate of invasion of 14 percent, 930 hectares of BLM-administered land are infested everyday by weeds (Jerry Asher, personal communication). When one considers the fact that BLM administers only about one-third of the public land in the United States (The Keystone Center, 1991), the magnitude of the problem assumes staggering proportions. The scenario described in the quote above portrays only some of the problems associated with the spread of the exotic plant tamarisk, a species on the California Exotic Pest Plant Council’s list of exotic pest plants of greatest concern (California Exotic Pest Plant Council, 1993). In this paper we review the threats posed by tamarisk invasion and proliferation and examine the traits that make the plant such a successful competitor. In addition, we highlight two tamarisk control efforts conducted by the Bureau of Land Management in the southern California desert.

Space Law and China

Science.gov (United States)

Tronchetti, Fabio

2017-08-01

Over the past few years, China has made remarkable achievements in the space sector and become one of the most relevant players in the outer space domain. Highlights of this process have been the deployment in orbit of the first Chinese space station, Tiangong-1, on September 29, 2011; and the landing of the Yutu rover on the lunar surface on December 14, 2013. While technological developments have occurred at such a rapid pace, the same cannot be said of the regulatory framework governing Chinese space activities, which still lays at its infant stage. Indeed, unlike other major space-faring countries, China lacks comprehensive and uniform national space legislation; as of now, China has enacted two low-level administrative regulations addressing the issues of launching and registration of space objects. With the growth of the Chinese space program, such a lack of a structured national space law is beginning to show its limits and to create concerns about its negative impact on business opportunities and the ability of China to fully comply with international obligations. One should keep in mind that the international space treaties (China is part to four international space law treaties) are not self-executing, thus requiring States to adopt domestic measures to ensure their effective implementation. Importantly, Chinese authorities appear to be aware of these issues; as stated by the secretary-general of the Chinese National Space Administration (CNSA) in 2014, national space law has been listed in the national legislation plan and the CNSA is directly engaged in such a process. However, questions remain as to how this drafting process will be conducted and what legal form and content the law will have. For example, China could either decide to proceed with a gradual approach, consisting in the adoption of laws addressing selected issues to be eventually assembled into one single law; or to directly move to the adoption of one comprehensive law. In any case, if

The Propulsive-Only Flight Control Problem

Science.gov (United States)

Blezad, Daniel J.

1996-01-01

Attitude control of aircraft using only the throttles is investigated. The long time constants of both the engines and of the aircraft dynamics, together with the coupling between longitudinal and lateral aircraft modes make piloted flight with failed control surfaces hazardous, especially when attempting to land. This research documents the results of in-flight operation using simulated failed flight controls and ground simulations of piloted propulsive-only control to touchdown. Augmentation control laws to assist the pilot are described using both optimal control and classical feedback methods. Piloted simulation using augmentation shows that simple and effective augmented control can be achieved in a wide variety of failed configurations.

Atlantic Forest scenarios under the parameters of forestry laws

Directory of Open Access Journals (Sweden)

Liliane Garcia da Silva

Full Text Available ABSTRACT Remote sensing allows for identification of regularities and irregularities in land use and land coverage (LULC change in relation to environmental legislation. The aim of this study was to delimit scenarios in the permanent preservation areas (PPAs according to the Brazilian forestry law, with or without consolidated uses in the basin of Capivari River and the State of Rio de Janeiro in the Atlantic Forest biome. Mapping and analysis were performed on LULC in areas of permanent preservation using the following data: RapidEye-REIS satellite scenes acquired in 2012 and Bhattacharyya distance classifier and hydrography of the basin and digital elevation model (1:25.000 using Spring and ArcGIS software. The legal scenarios adopted were as follows: I Federal Law N°. 4,771/1965 and the National Council for the Environment (CONAMA N°. 303/2002; II Federal Law N°. 12,651/2012; and III Federal Law N°. 12,651/2012 and N°. 12,727/2012. The classification presented an excellent overall accuracy of 91.15% and a Kappa Index of 0.86 in relation to the samples of the six multipurpose classes having the anthropic uses of agriculture, burned pasture, exposed soil and urbanization, which were present with conflicting uses for Scenarios I, II and III. The new forest legislation for the PPAs of Scenario III impacted the reduction of 68% compared to Scenario I, which corroborates with the concerns on the conservation of water and soil resources.

Attitude Optimal Backstepping Controller Based Quaternion for a UAV

Directory of Open Access Journals (Sweden)

Kaddouri Djamel

2016-01-01

Full Text Available A hierarchical controller design based on nonlinear H∞ theory and backstepping technique is developed for a nonlinear and coupled dynamic attitude system using conventional quaternion based method. The derived controller combines the attractive features of H∞ optimal controller and the advantages of the backstepping technique leading to a control law which avoids winding phenomena. Performance issues of the controller are illustrated in a simulation study made for a four-rotor vertical take-off and landing (VTOL aerial robot prototype known as the quadrotor aircraft.

THE PREEMPTION RIGHT REGARDING THE TRANSACTIONS OF AGRICULTURAL LANDS LOCATED OUTSIDE THE BUILT-UP AREAS

Directory of Open Access Journals (Sweden)

Simona Chirică

2015-11-01

Full Text Available The sale of agricultural lands located out-side the built-up areas has been recently limited through the obligation to follow the preemption procedure based on Law no. 17/2014, as subsequently amended (”Law 17”2 on the regulation measures for sale of agricultural lands located out-side the built-up areas and for the amendment of Law no. 268/2011 on the privatization of companies holding in administration public or private State owned agricultural lands and the establishment of the State Domains Agency. The preemptors are: (i the joint owners, (ii the lessees, (iii the neighboring owners, (iv Romanian State, through State Domain Agency. The preemption procedure commence with posting by the seller of its sale offer at the competent city hall and ends with the issuance of the positive/negative sale approval or, as the case may be, the conclusion of the sale agreement with one of the pre-emptors.

Solving problems of modern land relations on the way of formation of competitive agrarian production in Ukraine

Directory of Open Access Journals (Sweden)

Skoruk Olena P.

2014-01-01

Full Text Available The goal of the article is identification of modern problems of conduct of the land reform and ways of their solution in the context of economic consequences for development of the competitive agrarian production in Ukraine. It identifies that the main task of completion of the land reform is creation of the land market, which would ensure transition of the right of ownership on land lots to an efficient land owner. The basis of this development are farms that combine the owner and master of land in one entity. The article shows that adoption of the Draft Law “On Agricultural Land Turnover” would facilitate development of this form of management. The article identifies main problems of the moratorium on agricultural land sales, namely: land black market activity, withdrawal from market turnover of land of about USD 40 thousand million cost and, as a result, impossibility for agrarians to apply mortgage. The article identifies gaps in the legislation with respect to state control over unclaimed shares and escheats, due to which the state budget does not receive significant amounts of money. It offers ways of solution of these problems through empowering the founded Goszembank, which should become a partner and support for development of small and medium farms after withdrawal of the moratorium on agricultural land sales, with relevant authorities.

Global observation-based diagnosis of soil moisture control on land surface flux partition

Science.gov (United States)

Gallego-Elvira, Belen; Taylor, Christopher M.; Harris, Phil P.; Ghent, Darren; Veal, Karen L.; Folwell, Sonja S.

2016-04-01

Soil moisture plays a central role in the partition of available energy at the land surface between sensible and latent heat flux to the atmosphere. As soils dry out, evapotranspiration becomes water-limited ("stressed"), and both land surface temperature (LST) and sensible heat flux rise as a result. This change in surface behaviour during dry spells directly affects critical processes in both the land and the atmosphere. Soil water deficits are often a precursor in heat waves, and they control where feedbacks on precipitation become significant. State-of-the-art global climate model (GCM) simulations for the Coupled Model Intercomparison Project Phase 5 (CMIP5) disagree on where and how strongly the surface energy budget is limited by soil moisture. Evaluation of GCM simulations at global scale is still a major challenge owing to the scarcity and uncertainty of observational datasets of land surface fluxes and soil moisture at the appropriate scale. Earth observation offers the potential to test how well GCM land schemes simulate hydrological controls on surface fluxes. In particular, satellite observations of LST provide indirect information about the surface energy partition at 1km resolution globally. Here, we present a potentially powerful methodology to evaluate soil moisture stress on surface fluxes within GCMs. Our diagnostic, Relative Warming Rate (RWR), is a measure of how rapidly the land warms relative to the overlying atmosphere during dry spells lasting at least 10 days. Under clear skies, this is a proxy for the change in sensible heat flux as soil dries out. We derived RWR from MODIS Terra and Aqua LST observations, meteorological re-analyses and satellite rainfall datasets. Globally we found that on average, the land warmed up during dry spells for 97% of the observed surface between 60S and 60N. For 73% of the area, the land warmed faster than the atmosphere (positive RWR), indicating water stressed conditions and increases in sensible heat flux

The Effects of Gun Ownership Rates and Gun Control Laws on Suicide Rates

OpenAIRE

Mark Gius

2011-01-01

The purpose of the present study is to determine the effects of gun control laws and gun ownership rates on state-level suicide rates. Using the most recent data on suicide rates, gun control measures, and gun ownership rates, the results of the present study suggest that states that require handgun permits have lower gun-related suicide rates, and states that have higher gun ownership rates have higher gun-related suicide rates. Regarding non-gun suicides, results suggest that stricter gun c...

Knee movement patterns of injured and uninjured adolescent basketball players when landing from a jump: a case-control study.

Science.gov (United States)

Louw, Quinette; Grimmer, Karen; Vaughan, Christopher

2006-03-07

A common knee injury mechanism sustained during basketball is landing badly from a jump. Landing is a complex task and requires good coordination, dynamic muscle control and flexibility. For adolescents whose coordination and motor control has not fully matured, landing badly from a jump can present a significant risk for injury. There is currently limited biomechanical information regarding the lower limb kinetics of adolescents when jumping, specifically regarding jump kinematics comparing injured with uninjured adolescents. This study reports on an investigation of biomechanical differences in landing patterns of uninjured and injured adolescent basketball players. A matched case-control study design was employed. Twenty-two basketball players aged 14-16 years participated in the study: eleven previously knee-injured and eleven uninjured players matched with cases for age, gender, weight, height and years of play, and playing for the same club. Six high-speed, three-dimensional Vicon 370 cameras (120 Hz), Vicon biomechanical software and SAS Version 8 software were employed to analyse landing patterns when subjects performed a "jump shot". Linear correlations determined functional relationships between the biomechanical performance of lower limb joints, and paired t-tests determined differences between the normalised peak biomechanical parameters. The average peak vertical ground reaction forces between the cases and controls were similar. The average peak ground reaction forces between the cases and controls were moderately correlated (r = -0.47). The control (uninjured) players had significantly greater hip and knee flexion angles and significantly greater eccentric activity on landing than the uninjured cases (p jump, at different ages and physical developmental stages, would assist clinicians and coaches to identify players with inappropriate knee performance comparable to their age or developmental stage.

Knee Muscular Control During Jump Landing in Multidirections

OpenAIRE

Sinsurin, Komsak; Vachalathiti, Roongtiwa; Jalayondeja, Wattana; Limroongreungrat, Weerawat

2016-01-01

Background Jump landing is a complex movement in sports. While competing and practicing, athletes frequently perform multi-planar jump landing. Anticipatory muscle activity could influence the amount of knee flexion and prepare the knee for dynamic weight bearing such as landing tasks. Objectives The aim of the present study was to examine knee muscle function and knee flexion excursion as athletes naturally performed multi-direct...

Lease of agricultural land of the Treasury in the light of new regulations

Directory of Open Access Journals (Sweden)

Adam Majchrzak

2012-04-01

Full Text Available After 1992 lease was in Poland the primary form of land management of Treasury agricul-ture property. It was preferred by both the state because of the possibility of quick disposal of property and by farmers because of the need to involve the smaller one-off funding, which could be used instead for production and investment. In recent years the importance of leasing as a way of public land management has been decreasing in favour of the sale. It follows with the growing demand for agricultural land, as well as government policies and actions undertaken by the Agricultural Property Agency. This results in the new law regula-tions on public agricultural property management, which on 3 December 2011 introduced significant changes in the public land lease. The aim of new regulations is to accelerate the privatization of state land resources, which will be carried out in the first place by disabling part of the leased agricultural land from large-area farms, as well as for sale of the land, for which the lease will be ended. In this article the author tries to assess the impact of introduced regulations on the role of leasing of public agricultural land in Poland. It is expected that due to the new law, the lease will concern mainly small plots, while interest in the lease as a way to increase land resources by individual farmers will be reduced.

Formation mechanism of land subsidence in the North China Plain

Science.gov (United States)

Guo, Haipeng; Cheng, Guoming

2014-05-01

Land subsidence is a progressive and gradual geological disaster, whose development is irreversible. Due to rapid development of industrialization and urbanization, land subsidence occurs commonly in the North China Plain, and has become the main environmental factor impacting sustainable economic and social development. This study presents a brief review on the current situation of land subsidence in the North China Plain. Then the hydrologic, hydrogeologic and anthropogenic conditions favorable for the formation of land subsidence are analyzed, indicating that the formation of land subsidence is mainly determined by local geological condition and enabling conditions, e.g. long-term excessive exploitation of groundwater and engineering construction. A correlation analysis was conducted in both the North China Plain and Cangzhou region, a typical area where severe land subsidence occurs, of the quantitative relationship between deep groundwater yield and the land subsidence. The analysis results indicate that the land subsidence volume accounts for 40% to 44% of deep water yield in the North China Plain, indirectly showing the proportion of released water from compressibility of the aquifer and the aquitard in deep groundwater yield. In Cangzhou region, this proportion was calculated as 58%, far greater than that of the North China Plain. This is induced by the local lithologic structure and recharge condition of deep groundwater in Cangzhou region. The analysis of soil samples in Cangzhou region shows that strong relations exist among different physical parameters, and good change laws of compression with depth and pressure are found for soil samples. The hydraulic conductivities of clay are six orders of magnitude greater than those of the aquifer, implying the strong hypothesis of land subsidence. This analysis provides data and scientific basis for further study on formation mechanism of land subsidence in Cangzhou region and objective evaluation of its

Motor Control of Landing from a Jump in Simulated Hypergravity.

Directory of Open Access Journals (Sweden)

Clément N Gambelli

Full Text Available On Earth, when landing from a counter-movement jump, muscles contract before touchdown to anticipate imminent collision with the ground and place the limbs in a proper position. This study assesses how the control of landing is modified when gravity is increased above 1 g. Hypergravity was simulated in two different ways: (1 by generating centrifugal forces during turns of an aircraft (A300 and (2 by pulling the subject downwards in the laboratory with a Subject Loading System (SLS. Eight subjects were asked to perform counter-movement jumps at 1 g on Earth and at 3 hypergravity levels (1.2, 1.4 and 1.6 g both in A300 and with SLS. External forces applied to the body, movements of the lower limb segments and muscular activity of 6 lower limb muscles were recorded. Our results show that both in A300 and with SLS, as in 1 g: (1 the anticipation phase is present; (2 during the loading phase (from touchdown until the peak of vertical ground reaction force, lower limb muscles act like a stiff spring, whereas during the second part (from the peak of vertical ground reaction force until the return to the standing position, they act like a compliant spring associated with a damper. (3 With increasing gravity, the preparatory adjustments and the loading phase are modified whereas the second part does not change drastically. (4 The modifications are similar in A300 and with SLS, however the effect of hypergravity is accentuated in A300, probably due to altered sensory inputs. This observation suggests that otolithic information plays an important role in the control of the landing from a jump.

Integrated Weed Control for Land Stewardship at Legacy Management's Rocky Flats Site in Colorado - 13086

International Nuclear Information System (INIS)

Nelson, Jody K.

2013-01-01

Land stewardship is one of nine sustainability programs in the U.S. Department of Energy's Environmental Management System. Land stewardship includes maintaining and improving ecosystem health. At the Rocky Flats Site near Westminster, Colorado, land stewardship is an integral component of the Office of Legacy Management's post-closure monitoring and management at the site. Nearly 263 hectares (650 acres) were disturbed and re-vegetated during site cleanup and closure operations. Proactive management of revegetation areas is critical to the successful reestablishment of native grasslands, wetlands, and riparian communities. The undisturbed native plant communities that occur at the site also require active management to maintain the high-quality wetlands and other habitats that are home to numerous species of birds and other wildlife such as elk and deer, rare plant communities, and the federally listed threatened Preble's meadow jumping mouse. Over the past several decades, an increase of Noxious weeds has impacted much of Colorado's Front Range. As a result, weed control is a key component of the land stewardship program at Rocky Flats. Thirty-three species of state-listed Noxious weeds are known to occur in the Central and Peripheral Operable Units at Rocky Flats, along with another five species that are considered invasive at the site. Early detection and rapid response to control new invasive species is crucial to the program. An integrated weed control/vegetation management approach is key to maintaining healthy, sustainable plant communities that are able to resist Noxious weed invasions. Weed mapping, field surveys, and field-staff training sessions (to learn how to identify new potential problem species) are conducted to help detect and prevent new weed problems. The integrated approach at Rocky Flats includes administrative and cultural techniques (prevention), mechanical controls, biological controls, and chemical controls. Several species of biocontrol

"Just another hoop to jump through?" using environmental laws and processes to protect indigenous rights.

Science.gov (United States)

Middleton, Beth Rose

2013-11-01

Protection of culturally important indigenous landscapes has become an increasingly important component of environmental management processes, for both companies and individuals striving to comply with environmental regulations, and for indigenous groups seeking stronger laws to support site protection and cultural/human rights. Given that indigenous stewardship of culturally important sites, species, and practices continues to be threatened or prohibited on lands out of indigenous ownership, this paper examines whether or not indigenous people can meaningfully apply mainstream environmental management laws and processes to achieve protection of traditional sites and associated stewardship activities. While environmental laws can provide a "back door" to protect traditional sites and practices, they are not made for this purpose, and, as such, require specific amendments to become more useful for indigenous practitioners. Acknowledging thoughtful critiques of the cultural incommensurability of environmental law with indigenous environmental stewardship of sacred sites, I interrogate the ability of four specific environmental laws and processes-the Uniform Conservation Easement Act; the National Environmental Policy Act and the California Environmental Quality Act; the Pacific Stewardship Council land divestiture process; and Senate Bill 18 (CA-2004)-to protect culturally important landscapes and practices. I offer suggestions for improving these laws and processes to make them more applicable to indigenous stewardship of traditional landscapes.

Formulation and experimental evaluation of closed-form control laws for the rapid maneuvering of reactor neutronic power

International Nuclear Information System (INIS)

Bernard, J.A.

1989-09-01

This report describes both the theoretical development and the experimental evaluation of a novel, robust methodology for the time-optimal adjustment of a reactor's neutronic power under conditions of closed-loop digital control. Central to the approach are the 'MIT-SNL Period-Generated Minimum Time Control Laws' which determine the rate at which reactivity should be changed in order to cause a reactor's neutronic power to conform to a specified trajectory. Using these laws, reactor power can be safely raised by five to seven orders of magnitude in a few seconds. The MIT-SNL laws were developed to facilitate rapid increases of neutronic power on spacecraft reactors operating in an SDI environment. However, these laws are generic and have other applications including the rapid recovery of research and test reactors subsequent to an unanticipated shutdown, power increases following the achievement of criticality on commercial reactors, power adjustments on commercial reactors so as to minimize thermal stress, and automated startups. The work reported here was performed by the Massachusetts Institute of Technology under contract to the Sandia National Laboratories. Support was also provided by the US Department of Energy's Division of University and Industry Programs. The work described in this report is significant in that a novel solution to the problem of time-optimal control of neutronic power was identified, in that a rigorous description of a reactor's dynamics was derived in that the rate of change of reactivity was recognized as the proper control signal, and in that extensive experimental trials were conducted of these newly developed concepts on actual nuclear reactors. 43 refs., 118 figs., 11 tabs

The genetic origins of biosynthesis and light-responsive control of the chemical UV screen of land plants

International Nuclear Information System (INIS)

Jorgensen, R.

1994-01-01

Most land plants possess the capacity to protect themselves from UV light, and do so by producing pigments that absorb efficiently in the UV-A and UV-B regions of the spectrum while allowing transmission of nearly all photosynthetically useful wavelengths. These UV-absorbing pigments are mainly phenylpropanoids and flavonoids. This chapter summarizes current understanding of the mechanism of UV protection in higher land plants, evaluates the information available from lower land plants and their green-algal relatives, and then considers the possible evolutionary origins of this use of chemical filters for selectively screening UV light from solar radiation. It is proposed that photo control over the biosynthesis of UV-absorbing phenylpropanoids and flavonoids may have evolved in concert with the evolution of the high biosynthetic activity necessary for UV protection. The toxicity of phenylpropanoids and flavonoids has been postulated to have been a barrier to the evolution of an effective chemical UV screen, and that some means for sequestering these compounds and/or for controlling their synthesis probably evolved prior to, or in concert with, the evolution of high rates of biosynthesis. The original photoreceptor and signal transduction system is speculated to have been based on photo isomerization of a phenylpropanoid ester and a pre-existing product feedback mechanism for controlling phenylpropanoid biosynthesis. Understanding the original mechanism for photo control of the chemical UV screen of land plants could be valuable for understanding the adaptability of extant land plants to rising levels of solar UV-B radiation and may suggest genetic strategies for engineering improved UV tolerance in crop plants. (author)

Testing a simple control law to reduce broadband frequency harmonic vibrations using semi-active tuned mass dampers

International Nuclear Information System (INIS)

Moutinho, Carlos

2015-01-01

This paper is focused on the control problems related to semi-active tuned mass dampers (TMDs) used to reduce harmonic vibrations, specially involving civil structures. A simplified version of the phase control law is derived and its effectiveness is investigated and evaluated. The objective is to improve the functioning of control systems of this type by simplifying the measurement process and reducing the number of variables involved, making the control system more feasible and reliable. Because the control law is of ON/OFF type, combined with appropriate trigger conditions, the activity of the actuation system may be significantly reduced, which may be of few seconds a day in many practical cases, increasing the durability of the device and reducing its maintenance. Moreover, due to the ability of the control system to command the motion of the inertial mass, the semi-active TMD is relatively insensitive to its initial tuning, resulting in the capability of self-tuning and in the possibility of controlling several vibration modes of a structure over a significant broadband frequency. (paper)

Planning Review: Developments and Planning Issues of Land Use Control in Suburban Areas by Local Government’s Ordinances in Japan

OpenAIRE

Mashima, Toshimitsu; Kawakami, Mitsuhiko

2014-01-01

This study aims to clarify how changes in the legal system combined with changing social, economic, and environmental pressures have affected approaches taken for land use control. Our emphasis is on how historical transitions in the legal system, particularly in the use of local government ordinances (Development Permission Ordinances and voluntary ordinances concerning land use management) have contributed to land use control in suburban areas. Our results show that because of the revision ...

Role Conflict between Land Allocation and Municipal Functions in ...

African Journals Online (AJOL)

eliasn

of private investors to the use of land on the basis of payment arrangements established by law. ..... compensation in a blocked bank account in the name of the woreda or urban ..... 1, Ethiopian Legal Information Consortium (December. 2013) ...

Land Reforms and the Tragedy of the Anticommons—A Case Study from Cambodia

Directory of Open Access Journals (Sweden)

Dirk Loehr

2012-04-01

Full Text Available Most of the land reforms of recent decades have followed an approach of “formalization and capitalization” of individual land titles (de Soto 2000. However, within the privatization agenda, benefits of unimproved land (such as land rents and value capture are reaped privately by well-organized actors, whereas the costs of valorization (e.g., infrastructure or opportunity costs of land use changes are shifted onto poorly organized groups. Consequences of capitalization and formalization include rent seeking and land grabbing. In developing countries, formal law often transpires to work in favor of the winners of the titling process and is opposed by the customary rights of the losers. This causes a lack of general acknowledgement of formalized law (which is made responsible for deprivation of livelihoods of vulnerable groups and often leads to a clash of formal and customary norms. Countries may fall into a state of de facto anarchy and “de facto open access”. Encroachment and destruction of natural resources may spread. A reframing of development policy is necessary in order to fight these aberrations. Examples and evidence are provided from Cambodia, which has many features in common with other countries in Asia and Sub-Saharan Africa in this respect.

Biopsychosocial law, health care reform, and the control of medical inflation in Colorado.

Science.gov (United States)

Bruns, Daniel; Mueller, Kathryn; Warren, Pamela A

2012-05-01

A noteworthy attempt at health care reform was the 1992 Colorado workers' compensation reform bill, which led to the creation of what has been called "biopsychosocial laws." These laws mandated the use of treatment guidelines for patients with injury or chronic pain, which advocated a biopsychosocial model of rehabilitation, and aspired to use a "best practice" approach to controlling costs. The purpose of this study was to examine the financial impact of this health care reform process, and to test the hypothesis that this approach can be an effective strategy to contain costs while providing good care. This study utilized a dataset collected prospectively from 1992 to 2007 in 45 U.S. states for regulatory purposes. These data summarized the medical treatment and disability costs of 520,314 injured workers in Colorado, and an estimated 28.6 million injured workers nationally. As no other state passed a comparable bill, the Colorado worker compensation reform bill created a natural experiment, where a treatment group was created by legally enforceable medical treatment guidelines. In the 15 years following the implementation of the reform, the inflation of medical costs in Colorado workers' compensation was only one third that of the national average, saving an estimated $859 million on patients injured in 2007 alone. Although there were confounding variables, and causality could not be determined, these data are consistent with the hypothesis that Colorado's 1992 legislative efforts to reform workers compensation law using the biopsychosocial model worked as intended to provide good care while controlling costs. PsycINFO Database Record (c) 2012 APA, all rights reserved.

Gendered Access and Control Over Land and Water Resources in the Southern Agricultural Growth Corridor of Tanzania

Directory of Open Access Journals (Sweden)

Anna N. Sikira

2016-12-01

Full Text Available This paper assessed the gendered access and control over land and water, using the Ihemi cluster of the Southern Agricultural Growth Corridor of Tanzania (SAGCOT as a study area. Specifically, the paper answered the question on how decisions are made between men and women over land and water in the SAGCOT area, as well as how access and control over land and water is conducted. Data for this paper was drawn from the baseline study which was conducted for the project known as Laying Foundation for Effective Landscape-level Planning for Sustainable Development (LiFELand. A cross-sectional research design was used, whereby a questionnaire was administered to 167 women and 440 men. In addition, focus group discussions and key informant interviews were also conducted to complement and allow triangulation of data. Quantitative data was analyzed descriptively; while, qualitative data was analyzed using content analysis. In general, the results show that female headed households accounted for more than a quarter of the surveyed households; the number was slightly higher in the Njombe region. Results further show that women had no control over land and water as important productive resources in rural areas. The results also show that a larger proportion of both men and women had no right of occupancy over the land they owned hence their inability to use it as collateral in accessing loans from formal financial institutions. The paper therefore recommends efforts be made to empower women, hence enabling them to actively participate in decision-making, particularly regarding land and water. Equitable decision-making power can immensely enhance ecosystem conservation and sustainable utilization over land and water as women are the major actors in agriculture. To achieve gender equality there is a need for awareness creation for both men and women using gender sensitive programs that will allow not only equality in use but a sustainable utilization of Land

Social Studies: Law Education.

Science.gov (United States)

Curriculum Review, 1979

1979-01-01

Reviews 11 series, texts, supplements, kits, and professional references for law instruction, including civil and criminal law, the Bill of Rights, and controversial legal issues: arson, gun control, capital punishment, and euthanasia. While all grade levels are covered, the emphasis is on secondary-level materials. (SJL)

A real-time comparison between direct control, sequential pattern recognition control and simultaneous pattern recognition control using a Fitts' law style assessment procedure.

Science.gov (United States)

Wurth, Sophie M; Hargrove, Levi J

2014-05-30

Pattern recognition (PR) based strategies for the control of myoelectric upper limb prostheses are generally evaluated through offline classification accuracy, which is an admittedly useful metric, but insufficient to discuss functional performance in real time. Existing functional tests are extensive to set up and most fail to provide a challenging, objective framework to assess the strategy performance in real time. Nine able-bodied and two amputee subjects gave informed consent and participated in the local Institutional Review Board approved study. We designed a two-dimensional target acquisition task, based on the principles of Fitts' law for human motor control. Subjects were prompted to steer a cursor from the screen center of into a series of subsequently appearing targets of different difficulties. Three cursor control systems were tested, corresponding to three electromyography-based prosthetic control strategies: 1) amplitude-based direct control (the clinical standard of care), 2) sequential PR control, and 3) simultaneous PR control, allowing for a concurrent activation of two degrees of freedom (DOF). We computed throughput (bits/second), path efficiency (%), reaction time (second), and overshoot (%)) and used general linear models to assess significant differences between the strategies for each metric. We validated the proposed methodology by achieving very high coefficients of determination for Fitts' law. Both PR strategies significantly outperformed direct control in two-DOF targets and were more intuitive to operate. In one-DOF targets, the simultaneous approach was the least precise. The direct control was efficient in one-DOF targets but cumbersome to operate in two-DOF targets through a switch-depended sequential cursor control. We designed a test, capable of comprehensively describing prosthetic control strategies in real time. When implemented on control subjects, the test was able to capture statistically significant differences (p�

Legislation on The Protection of Agricultural Land in the context of the implementation of the Thematic Strategy for Soil Protection in Slovak Conditions

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Palšová Lucia

2014-07-01

Full Text Available Protecting the qualitative aspect of the agricultural land is in the interest of European Union policies and Slovakia as well. The EU adopted in 2006 a Thematic Strategy for Soil Protection to ensure protection and sustainable use of land, including agricultural land. The aim of this paper is to analyze and evaluate legislation protecting agricultural land in the context of the implementation of the Thematic Strategy for Soil Protection in Slovakia. The basic legislation for the protection of agricultural land in Slovakia is the Act No. 220/2004 Coll. on the conservation and use of agricultural land and amending Act No. 245/2003 Coll. concerning integrated pollution prevention and control and amending certain laws, as amended, which provides a basic framework for conservation of the agricultural land. In terms of preserving, agricultural land has significant importance in the Common Agricultural Policy -pillar I and II which stipulate cross-compliance requirements, requirements for agri-environmental measures for applicants for single area payment scheme, for applicants for support under agri-environmental measures respectively.

Official publication of the regulatory guide concerning control of LAW and MAW with negligible heat release, which are not delivered to the waste collection station of the Land

International Nuclear Information System (INIS)

1989-01-01

Control of the LAW and MAW from nuclear installations is to be made so as to ensure that amounts, residence and status of conditioning of the wastes can be determined any time in order to provide for a safe interim storage or ultimate disposal by supervision and control of all waste management steps (waste treatment, conditioning, interim storage, transport). The checks have to determine the radionuclide inventory, and, independent of aforesaid measurements, the nuclear fuel content (e.g. Pu) has to be declared if the limit of 74 Bq/g is exceeded. The provisions of the regulatory guide are intended to be valid for a period of three years, and shall then be replaced by a statutory instrument (an ordinance to be prepared by the joint Committee of the Laender for Nuclear Energy - Executive Committee). (orig./HP) [de

The Rights of Pastoralist Peoples. A Framework for their Recognition in International Law

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Miguel Ángel Martín López

2016-06-01

Full Text Available Pastoralists are one of the most poverty stricken and underdeveloped existing human groups in the world. Until now, having remained practically invisible in the eyes of international law, it is desirable to open a debate concerning the recognition of their rights. The ideal situation would be to create a specific category of rights dedicated expressly to these pastoralist peoples. Therefore, one can surmise that there are two laws that constitute its essential content: the law protecting their way of life and their access rights to the land

Star laws: legal controls on armed conflict in outer space

International Nuclear Information System (INIS)

Stephens, Dale

2016-01-01

An undeclared military space race is unfolding yet there is no clear understanding of how international las operates in the field of armed conflict in outer space. In conjunction with McGill University Law School, Montreal, Canada, a 'Manual on international law applicable to military uses of outer space' has been drafted. This article looks at types of space weapons, previous space treaties and discusses humanitarian law.

Leibniz, Lefebvre and the spatial turn in law

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Isolde de Villiers

2016-11-01

Full Text Available This contribution takes as its point of departure the spatial turn in law and the notion of spatial justice. It traces the term ‘spatial justice’ as introduced through the Spatial Planning and Land Use Management Act and it looks at the underlying view of space that has influenced the spatial turn in law. It furthermore investigates the ways in which the spatial turn in law has been influenced by the thinking of Henri Lefebvre, who relies on a Leibnizian conception of space. Lastly the link between Leibniz and legal positivism is considered in order to reach the final conclusion in the form of a caution against merely adding the language of spatial justice to an approach to space that remains caught up in abstract space. This will only further entrench existing fault lines in society. For this conclusion the work of Roger Berkowitz is central. Berkowitz argues convincingly that the work of Leibniz was central in the development of legal positivism, despite Leibniz in general being considered as a natural law thinker. The same applies to spatial justice theory, where the work of Leibniz is central: it may present the possibilities of another law – the law as it ought to be. The law conceptualised as ‘ought’ instead of ‘is’ would promote reconciliation. Alternatively, spatial justice can simply present the law as it ‘is’ and reconfirm and deepen the chasms in our world.

Biodiversity conservation and indigenous land management in the era of self-determination.

Science.gov (United States)

Schmidt, Paige M; Peterson, Markus J

2009-12-01

Indigenous people inhabit approximately 85% of areas designated for biodiversity conservation worldwide. They also continue to struggle for recognition and preservation of cultural identities, lifestyles, and livelihoods--a struggle contingent on control and protection of traditional lands and associated natural resources (hereafter, self-determination). Indigenous lands and the biodiversity they support are increasingly threatened because of human population growth and per capita consumption. Application of the Endangered Species Act (ESA) to tribal lands in the United States provides a rich example of the articulation between biodiversity conservation and indigenous peoples' struggle for self-determination. We found a paradoxical relationship whereby tribal governments are simultaneously and contradictory sovereign nations; yet their communities depend on the U.S. government for protection through the federal-trust doctrine. The unique legal status of tribal lands, their importance for conserving federally protected species, and federal environmental regulations' failure to define applicability to tribal lands creates conflict between tribal sovereignty, self-determination, and constitutional authority. We reviewed Secretarial Order 3206, the U.S. policy on "American Indian tribal rights, federal-tribal trust responsibilities, and the ESA," and evaluated how it influences ESA implementation on tribal lands. We found improved biodiversity conservation and tribal self-determination requires revision of the fiduciary relationship between the federal government and the tribes to establish clear, legal definitions regarding land rights, applicability of environmental laws, and financial responsibilities. Such actions will allow provision of adequate funding and training to tribal leaders and resource managers, government agency personnel responsible for biodiversity conservation and land management, and environmental policy makers. Increased capacity, cooperation, and

LANDING QUALITY IN ARTISTIC GYMNASTICS IS RELATED TO LANDING SYMMETRY

Science.gov (United States)

Marinšek, M.

2013-01-01

In gymnastics every exercise finishes with a landing. The quality of landing depends on subjective (e.g. biomechanical) and objective (e.g. mechanical characteristics of landing area) factors. The aim of our research was to determine which biomechanical (temporal, kinematic and dynamic) characteristics of landing best predict the quality of landing. Twelve male gymnasts performed a stretched forward and backward salto; also with 1/2, 1/1 and 3/2 turns. Stepwise multiple regression extracted five predictors which explained 51.5% of landing quality variance. All predictors were defining asymmetries between legs (velocities, angles). To avoid asymmetric landings, gymnasts need to develop enough height; they need higher angular momentum around the transverse and longitudinal axis and they need to better control angular velocity in the longitudinal axis. PMID:24744462

Land Politics under Market Socialism: The State, Land Policies, and Rural–Urban Land Conversion in China and Vietnam

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Hoang Linh Nguyen

2018-04-01

Full Text Available This paper undertakes a comparative analysis of rural–urban land conversion policies in China and Vietnam, and examines the ideology of the state in land policymaking under a market socialism environment. It argues that land policies in both countries include ambiguous boundaries, which allow the socialist state to legitimize its politico-administrative power in land management and retain strong intervention capacity in the land market. In addition to similarities, land policies in China and Vietnam show significant differences in terms of the ownership of rural land and related legislation on land expropriation and transactions. Together, these distinctions cause divergent impacts on the interests and motivations of multiple stakeholders in rural land conversion. It is further observed that the state in both countries is characterized by dynamic, complex, and self-coordinated institutional systems, in which multiple levels of government have different driving forces and strategies in land development. The internal structure of authority in rural–urban land conversion between the multiple levels of government is readjusted by the regulatory land control of the central government.

Women's Rights and Living Customary Law | CRDI - Centre de ...

International Development Research Centre (IDRC) Digital Library (Canada)

This action-research project focuses on the interface between custom and rights in the context of a constitution that recognizes and protects both customary law and the Bill of Rights. It will explore how this interplay affects the rights - particularly land rights - of black women living in former "homeland areas" of South Africa.

RIGHT TO PROPERTY: THE LAND ACQUISITION ACT 1960 AND THE SHARIAH PERSPECTIVE

Directory of Open Access Journals (Sweden)

Nor Asiah Mohamad

2013-08-01

Full Text Available Islamic law recognizes both private and community property. This community rights are manifested in forms of entitlement for charitable purposes, known as waqf or trusts,  sadaqah as well as  zakat. Under the Sha‘riah, however, ownership of all property ultimately rests with God. Though individual property rights are upheld, there is a corresponding obligation to share, particularly with those in need. In Malaysia, the right to property is a constitutional right and thus, the acquiring authority cannot deprive a person of his land in an arbitrary manner. This paper discusses the extent of which the acquisition law falls in line with Shari‘ah thus preserving the right to property as determined by Shari‘ah to individuals. Similarly, the paper also looks at some basic principles sustained by the court in determining whether the working of the acquisition law falls within the constitutional guarantee provided under Article 13 of the Federal Constitution and the Sha‘riah. A study of the case law reveals that human errors due to greediness and lack of responsibility have contributed to some of the problems in land acquisition.

Goals and instruments of land policy and the growth and development of cities

OpenAIRE

Maruška Šubic Kovač

2001-01-01

Instruments of land policies are tied to its goals, as well as defined relations on property and law as set in the Constitution. Since these relations have changed in Slovenia, the instruments of land policy also have to change. When devising particular instruments, basic principles have to be respected, which are the starting point for particular procedures. Only adequate legally defined instruments of land policies can be implemented in practice and affect the growth and development of citi...

25 CFR 162.212 - When will the BIA advertise Indian land for agricultural leases?

Science.gov (United States)

2010-04-01

... laws and leasing policies that have been made applicable to the land under §§ 162.109 and 162.203 of..., unless a preference in favor of individual Indians is required by a superseding tribal law or leasing policy. (c) Advertisements will require sealed bids, and they may also provide for further competitive...

Mathematical Model Based on Newton’s Laws and in First Thermodynamic Law of a Gas Turbine

Directory of Open Access Journals (Sweden)

Ottmar Rafael Uriza Gosebruch

2017-09-01

Full Text Available The present article explains the modeling of a Gas Turbine system; the mathematical modeling is based on fluid mechanics applying the principal energy laws such as Euler’s Law, Newton’s second Law and the first thermodynamic law to obtain the equations for mass, momentum and energy conservation; expressed as the continuity equation, the Navier-Stokes equation and the energy conservation using Fourier’s Law. The purpose of this article is to establish a precise mathematical model to be applied in control applications, for future works, within industry applications.

5 CFR 842.405 - Air traffic controllers, firefighters, law enforcement officers, and nuclear materials couriers.

Science.gov (United States)

2010-01-01

... 5 Administrative Personnel 2 2010-01-01 2010-01-01 false Air traffic controllers, firefighters, law enforcement officers, and nuclear materials couriers. 842.405 Section 842.405 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT (CONTINUED) CIVIL SERVICE REGULATIONS (CONTINUED) FEDERAL EMPLOYEES RETIREMENT SYSTEM-BASIC ANNUITY Computations ...

Active Power Filter DC Bus Voltage Piecewise Reaching Law Variable Structure Control

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Baolian Liu

2014-01-01

Full Text Available The DC bus voltage stability control is one key technology to ensure that Active Power Filter (APF operates stably. The external disturbances such as power grid and load fluctuation and the system parameters changing may affect the stability of APF DC bus voltage and the normal operation of APF. The mathematical model of DC bus voltage is established according to power balance principle and a DC bus voltage piecewise reaching law variable structure control algorithm is proposed to solve the above problem, and the design method is given. The simulation and experiment results proved that the proposed variable structure control algorithm can eliminate the chattering problem existing in traditional variable structure control effectively, is insensitive to system disturbance, and has good robustness and fast dynamic response speed and stable DC bus voltage with small fluctuation. The above advantages ensure the compensation effect of APF.

Land and Law in Marijuana Country: Clean Capital, Dirty Money, and the Drug War's Rentier Nexus.

Science.gov (United States)

Polson, Michael

2013-11-01

Despite its ongoing federal illegality, marijuana production has become a licit, or socially accepted, feature of northern California's real estate market. As such, marijuana is a key component of land values and the laundering of "illegal" wealth into legitimate circulation. By following land transaction practices, relations, and instruments, this article shows how formally equal property transactions become substantively unequal in light of the "il/legal" dynamics of marijuana land use. As marijuana becomes licit, prohibitionist policies have enabled the capture of ground rent by landed interests from the marijuana industry at a time when the price of marijuana is declining (in part due to its increasing licitness). The resulting "drug war rentier nexus," a state-land-finance complex, is becoming a key, if obscured, component within marijuana's contemporary political economy.

Motion of the two-control airplane in rectilinear flight after initial disturbances with introduction of controls following an exponential law

Science.gov (United States)

Klemin, Alexander

1937-01-01

An airplane in steady rectilinear flight was assumed to experience an initial disturbance in rolling or yawing velocity. The equations of motion were solved to see if it was possible to hasten recovery of a stable airplane or to secure recovery of an unstable airplane by the application of a single lateral control following an exponential law. The sample computations indicate that, for initial disturbances complex in character, it would be difficult to secure correlation with any type of exponential control. The possibility is visualized that the two-control operation may seriously impair the ability to hasten recovery or counteract instability.

Periodic spring–mass running over uneven terrain through feedforward control of landing conditions

International Nuclear Information System (INIS)

III, Luther R Palmer; Eaton, Caitrin E

2014-01-01

This work pursues a feedforward control algorithm for high-speed legged locomotion over uneven terrain. Being able to rapidly negotiate uneven terrain without visual or a priori information about the terrain will allow legged systems to be used in time-critical applications and alongside fast-moving humans or vehicles. The algorithm is shown here implemented on a spring-loaded inverted pendulum model in simulation, and can be configured to approach fixed running height over uneven terrain or self-stable terrain following. Offline search identifies unique landing conditions that achieve a desired apex height with a constant stride period over varying ground levels. Because the time between the apex and touchdown events is directly related to ground height, the landing conditions can be computed in real time as continuous functions of this falling time. Enforcing a constant stride period reduces the need for inertial sensing of the apex event, which is nontrivial for physical systems, and allows for clocked feedfoward control of the swing leg. (paper)

Periodic spring-mass running over uneven terrain through feedforward control of landing conditions.

Science.gov (United States)

Palmer, Luther R; Eaton, Caitrin E

2014-09-01

This work pursues a feedforward control algorithm for high-speed legged locomotion over uneven terrain. Being able to rapidly negotiate uneven terrain without visual or a priori information about the terrain will allow legged systems to be used in time-critical applications and alongside fast-moving humans or vehicles. The algorithm is shown here implemented on a spring-loaded inverted pendulum model in simulation, and can be configured to approach fixed running height over uneven terrain or self-stable terrain following. Offline search identifies unique landing conditions that achieve a desired apex height with a constant stride period over varying ground levels. Because the time between the apex and touchdown events is directly related to ground height, the landing conditions can be computed in real time as continuous functions of this falling time. Enforcing a constant stride period reduces the need for inertial sensing of the apex event, which is nontrivial for physical systems, and allows for clocked feedfoward control of the swing leg.

Actual problems of the antimonopoly requirements` observance in the bidding for the sale of land in the Russian Federation

Directory of Open Access Journals (Sweden)

Alexey Pavlovich ANISIMOV

2013-06-01

Full Text Available A comprehensive view of the topic of Antimonopoly regulation in the sphere of land auctions for the Russian legal science and legal science other Eastern European countries is highly relevant. The importance of such research is that foreign companies having business in Russia are not always aware of specificity in land tendering legal regulation and antimonopoly requirements in this sphere. Moreover, the practice of violation of antimonopoly legislation in the sphere of land tendering and probable means of legislation improvement may hereby present more interest for them. The authors cite and analyze various typical violations in the sphere of land tendering, including publication of land auctions notices in an improper printing agency; lack of applications registration and putting forward extra requirements towards the participants; display for land parcels auctions for which no technical specifications of networking have been determined and no payment for such networking has been established; attempts of local administration to provide land parcels without prior approval of the objects’ places of location and without auctions (though such a procedure is of an extremely local character and is only performed in cases expressly specified by the Federal Law; collection of extra and illegal fees from physical and legal entities for participation in auctions; tendering in cases when they are not to be carried out under the Law (gardening, haymaking; underpricing of a land parcel, etc. Eventually a conclusion is drawn on the effectiveness of auctions which shall be secured by establishing a legal procedure which details and definitely determines tendering regulations, requirements towards the participants and order of agreement’s conclusion. Control on the part of antimonopoly bodies, undoubtedly, allows forming barriers for dishonest participants of the auctions. The authors assume that it is rather difficult to achieve absence of mal-usage by

Planning Laws and Policies Which Influence the Use of Land in ...

African Journals Online (AJOL)

... with the view to making proposals which will avail the acquired lands for rational use by the public and the government. It is also recommended that all levels of government embark on appropriate planning schemes as they are empowered by the Lagos State Urban and Regional Planning Act of 1998.. Africa Insight Vol.

Effectiveness of the GAEC standard of cross compliance Prohibition of performing unauthorized land levelling on soil erosion control

Directory of Open Access Journals (Sweden)

Paolo Bazzoffi

2011-08-01

Full Text Available The GAEC standard land levelling under authorization of cross compliance prohibits farmers from levelling land through bulldozing without a specific permission issued by the proper territorial authority. The aim of the standard is to ensure the protection of soil from accelerated erosion that almost always occurs when land is levelled without conservative criteria. Land levelling prior to planting or replanting specialized crops, especially orchards, is indicated by agronomists as essential to the full mechanization of cultivation and harvesting operations and the success of economic investment. Land levelling leads to a deep modification of the hill slopes, so it may produce serious damage to the environment if carried out in the absence of a carefully planned design. In other words, a design that takes the aspects of soil conservation into account, especially for steep hill slopes where the insite and offsite environmental impacts of soil erosion may be more pronounced. With regard to the areas involved, land levelling plays a key role on a national scale, one only needs to think of the vineyards planted on the country’s hill slopes, which in 1970 covered an area of 793,000 hectares. Moreover, despite the continued reduction in areas planted with vines, from 1990 to 2002 the area devoted to DOC and DOCG wines increased by about 29% and the average size of vineyards has also increased. This is a clear sign of the current trend, with the transition from the family model to the industrial model of orchard management, with extensive use of machinery and thus the use of bulldozers for levelling. The authorization topic, on which the standard of compliance is based, is analysed in detail. In summary we can say that, according to law, the permit required by the GAEC standard is currently mandatory only for those areas subject to the Hydrogeological constraint (Royal decree 30 December 1923 No. 3267 and for parks or other areas for which the

A POLICY EVALUATION ON LAND PROCUREMENT USED FOR NATIONAL ROAD SPREADING IN BANGKA TENGAH REGENCY, KEPULAUAN BANGKA BELITUNG PROVINCE

Directory of Open Access Journals (Sweden)

Wijaya Sukarno Retno Negoro

2017-06-01

Full Text Available The policy of national land procurement is formed under a national consensus which states that land procurement in Indonesia must be implemented by emphasizing the principles of the Indonesian constitution and land law. In terms of land procurement, the local government of Bangka Tengah has a different policy from the national policy. In Bangka Tengah, land values are not included in the calculation of compensation value for the land acquisition. The compensation is only accounted for buildings, crops and other measurable losses. The study attempts to identify the concepts implemented by the local government of Bangka Belitung on their land procurement policy and to describe the conformity of the policy with the national policy under the Indonesian law no. 2 year 2012 No. 2 on Land Procurement for public facilities development. In evaluating the data, Dunn evaluation method is employed.  The method is a formal evaluation that focuses on the conformity in land procurement with the national constitution no 2. year 2012. The study indicates that substantially the land procurement policy implemented in Bangka Tengah is not in contradiction to the national land procurement policy. However, in the future, this kind of local policy will be more difficult to be put into effect.

Competition and safety in the law on technical inspection and control - is it a contradiction?

International Nuclear Information System (INIS)

Roth, H.A.

1987-01-01

For some time now, objections have been raised against the argument that technical inspection and control should indeed remain a task exlusively for the Technical Control Boards and their offices, organisations and employed inspectors, because competition in this very safety-related sector would not be a positive factor of selection but rather a mechanism reducing the inspection quality, resulting in a hazardous lowering of the safety level. The objections are primarily raised by the free-lance technical experts and their organisations who would like to enlarge their field of activity in this direction. The book at hand discusses the question how much free manoeuvering space there is for the legislative body to deal with such demands and reconcile the interests of safety and competition. The problem is discussed with a view to the Basic Law, which is said to create no legal basis for the demand for more competition in this field. The Basic Law leaves this decision to the discretion of the legislature. (orig./HP) [de

43 CFR 4.452-8 - Findings and conclusions; decision by administrative law judge; submission to Board for decision.

Science.gov (United States)

2010-10-01

... after the time allowed for presenting proposed findings and conclusions, the administrative law judge... 43 Public Lands: Interior 1 2010-10-01 2010-10-01 false Findings and conclusions; decision by... Findings and conclusions; decision by administrative law judge; submission to Board for decision. (a) At...

Evolution of an artificial neural network based autonomous land vehicle controller.

Science.gov (United States)

Baluja, S

1996-01-01

This paper presents an evolutionary method for creating an artificial neural network based autonomous land vehicle controller. The evolved controllers perform better in unseen situations than those trained with an error backpropagation learning algorithm designed for this task. In this paper, an overview of the previous connectionist based approaches to this task is given, and the evolutionary algorithms used in this study are described in detail. Methods for reducing the high computational costs of training artificial neural networks with evolutionary algorithms are explored. Error metrics specific to the task of autonomous vehicle control are introduced; the evolutionary algorithms guided by these error metrics reveal improved performance over those guided by the standard sum-squared error metric. Finally, techniques for integrating evolutionary search and error backpropagation are presented. The evolved networks are designed to control Carnegie Mellon University's NAVLAB vehicles in road following tasks.

The growing interrelationship between nuclear law and environmental law

International Nuclear Information System (INIS)

Bourdon, Pierre

2015-01-01

With the recent United Nations Climate Change Conference (COP21) in Paris, a great deal of attention is being given to low-carbon energy technologies and policies that could help the world limit the global temperature increase to 2 deg. Celsius. Among these technologies, nuclear energy, which remains the largest source of low-carbon electricity in OECD countries and the second largest source of electricity at the global level after hydropower, can play a key role. The 2011 Fukushima Daiichi accident heightened public concern over the safety of nuclear energy in many countries. Because of the potentially far-reaching consequences of the use of nuclear energy on the environment in the case of an accident, it is commonly thought that nuclear law and environmental law are not entirely compatible or do not necessarily share the same objectives. Nuclear law may be defined as 'the body of special legal norms created to regulate the conduct of legal or natural persons engaged in activities related to fissionable materials, ionizing radiation and exposure to natural sources of radiation', while environmental law can be defined as 'the body of law that contains elements to control the human impact on the Earth and on public health'. These two areas of law were considered independently in the past, since the initial focus of nuclear law, which was developed before environmental law, was to protect people and property, without explicitly referring to the environment. However, the 1986 Chernobyl accident and increasing environmental concerns during that same decade led to a growing emphasis on environmental protection in the field of nuclear activities. On the one hand, nuclear law, as 'lex specialis', aims to ensure that nuclear activities are carried out in a manner that is safe for both the public and the environment. On the other hand, the expansion of the realm of environmental law has given rise to the application of environmentally focused

Goals and instruments of land policy and the growth and development of cities

Directory of Open Access Journals (Sweden)

Maruška Šubic Kovač

2001-01-01

Full Text Available Instruments of land policies are tied to its goals, as well as defined relations on property and law as set in the Constitution. Since these relations have changed in Slovenia, the instruments of land policy also have to change. When devising particular instruments, basic principles have to be respected, which are the starting point for particular procedures. Only adequate legally defined instruments of land policies can be implemented in practice and affect the growth and development of cities in Slovenia.

Some of Indonesian Cyber Law Problems

Science.gov (United States)

Machmuddin, D. D.; Pratama, B.

2017-01-01

Cyber regulation is very important to control human interaction within the Internet network in cyber space. On the surface, innovation development in science and technology facilitates human activity. But on the inside, innovation was controlled by new business model. In cyber business activities mingle with individual protection. By this condition, the law should keep the balance of the activities. Cyber law problems, were not particular country concern, but its global concern. This is a good opportunity for developing country to catch up with developed country. Beside this opportunity for talented people in law and technology is become necessity. This paper tries to describe cyber law in Indonesia. As a product of a developing country there are some of weakness that can be explained. Terminology and territory of cyber space is become interesting to discuss, because this two problems can give a broad view on cyber law in Indonesia.

A simulation-based interval two-stage stochastic model for agricultural nonpoint source pollution control through land retirement

International Nuclear Information System (INIS)

Luo, B.; Li, J.B.; Huang, G.H.; Li, H.L.

2006-01-01

This study presents a simulation-based interval two-stage stochastic programming (SITSP) model for agricultural nonpoint source (NPS) pollution control through land retirement under uncertain conditions. The modeling framework was established by the development of an interval two-stage stochastic program, with its random parameters being provided by the statistical analysis of the simulation outcomes of a distributed water quality approach. The developed model can deal with the tradeoff between agricultural revenue and 'off-site' water quality concern under random effluent discharge for a land retirement scheme through minimizing the expected value of long-term total economic and environmental cost. In addition, the uncertainties presented as interval numbers in the agriculture-water system can be effectively quantified with the interval programming. By subdividing the whole agricultural watershed into different zones, the most pollution-related sensitive cropland can be identified and an optimal land retirement scheme can be obtained through the modeling approach. The developed method was applied to the Swift Current Creek watershed in Canada for soil erosion control through land retirement. The Hydrological Simulation Program-FORTRAN (HSPF) was used to simulate the sediment information for this case study. Obtained results indicate that the total economic and environmental cost of the entire agriculture-water system can be limited within an interval value for the optimal land retirement schemes. Meanwhile, a best and worst land retirement scheme was obtained for the study watershed under various uncertainties

Legal protection of land from pollution

Directory of Open Access Journals (Sweden)

Petrović Zdravko

2014-01-01

Full Text Available Situated in the study conducted in this paper, using the method of analysis of contents, induction and deduction, historical and legal dogmatic indicated that ecology as their object of legal protection has three global natural values: air, water, land, and atmosphere, hydrosphere and lithosphere as constituent elements of the biosphere. Land as a special natural product comprises a solid layer of the Earth that is specific to the biosphere. The importance of land from the perspective of sustainable development is multifaceted, especially when seen through its environmental, industrial, manufacturing, socio-economic, educational, scientific, cultural, historical and any other useful functions. Its most important function is to fertility and the ability to flora supplying water, oxygen and mineral substances. Natural processes that led to the creation of land argue the view that it belongs to the so-called renewable resources, but only if it's a man rational use and encourages their natural reproduction. In accordance with current legislation and categorization of land, this survey includes agricultural land. In this paper, we have opted for ecological and legal land protection as one of the most important natural resources whose quality and extent of a very significant impact on the environment as a whole. The introductory part of the paper included a terminological demarcation and specificity of the case study of environmental law, as well as the possible forms of soil pollution. Methodological framework of research, using the method of content analysis of existing domestic and international legal legislation, method comparison and synthesis were studied legal documents that protect the land from pollution.

Application of genetic algorithm to land use optimization for non-point source pollution control based on CLUE-S and SWAT

Science.gov (United States)

Wang, Qingrui; Liu, Ruimin; Men, Cong; Guo, Lijia

2018-05-01

The genetic algorithm (GA) was combined with the Conversion of Land Use and its Effect at Small regional extent (CLUE-S) model to obtain an optimized land use pattern for controlling non-point source (NPS) pollution. The performance of the combination was evaluated. The effect of the optimized land use pattern on the NPS pollution control was estimated by the Soil and Water Assessment Tool (SWAT) model and an assistant map was drawn to support the land use plan for the future. The Xiangxi River watershed was selected as the study area. Two scenarios were used to simulate the land use change. Under the historical trend scenario (Markov chain prediction), the forest area decreased by 2035.06 ha, and was mainly converted into paddy and dryland area. In contrast, under the optimized scenario (genetic algorithm (GA) prediction), up to 3370 ha of dryland area was converted into forest area. Spatially, the conversion of paddy and dryland into forest occurred mainly in the northwest and southeast of the watershed, where the slope land occupied a large proportion. The organic and inorganic phosphorus loads decreased by 3.6% and 3.7%, respectively, in the optimized scenario compared to those in the historical trend scenario. GA showed a better performance in optimized land use prediction. A comparison of the land use patterns in 2010 under the real situation and in 2020 under the optimized situation showed that Shennongjia and Shuiyuesi should convert 1201.76 ha and 1115.33 ha of dryland into forest areas, respectively, which represented the greatest changes in all regions in the watershed. The results of this study indicated that GA and the CLUE-S model can be used to optimize the land use patterns in the future and that SWAT can be used to evaluate the effect of land use optimization on non-point source pollution control. These methods may provide support for land use plan of an area.

Syria: Land of history, civilizations and war

Science.gov (United States)

2016-01-01

As the Syrians are welcomed into Canada, it is useful to learn about where they are coming from. Syria is an ancient land with a rich history and has always been home to diverse cultures, ethnicities and religions. Palmyra was an ancient civilization that arose during the second century. Syria became part of the land of Islam in AD 640 and was a cultural, religious and artistic center. During the Middle Ages, Syria came under the control of the Crusaders and was part of the Ottoman Empire from the early fifteen hundreds until the end of the nineteenth century. During World War I it came under French influence and was recognized as an independent nation after World War II. In 1963, Hafez al-Assad led a military coup and since then, Syria has been ruled under emergency law. After al-Assad died in 2000, his son Bashar al-Assad was elected President in an uncontested presidential campaign. Before the current conflict, Syria had a population of approximately 22 million people but now about half the population have been displaced internally and into neighbouring countries, including approximately four million refugees. It is estimated that 250,000 people have died during the Syrian conflict. PMID:29770036

Legalising land rights. Local Practices, State Responses and Tenure Security in Africa, Asia and Latin America

OpenAIRE

Ubink, Janine M.; Hoekema, André J.; Assies, Willem J.

2009-01-01

Millions of people live and work on land that they do not legally own in accordance with enforceable state law. The absence of state recognition for local property rights affects people's tenure security and impedes development. Efforts to legalise extra-legal land tenure have traditionally emphasised individual titling and registration. Disappointment with such approaches have led to a search for 'a third way' in land tenure regulation that will reconcile state perspectives with local land r...

FORMS OF DEVELOPMENT AND LAND TENURE AS IMPROVEMENT TOOLS OF land use planning IN UKRAINE

Directory of Open Access Journals (Sweden)

Tretyak A.M.

2016-05-01

Full Text Available Transformations which take place now in the the economy of Ukraine, and in particular in agriculture considerably exacerbated organizational and legal problems and organizational and territorial forms of local agricultural enterprises, protection of land ownership rights. Transformation of land relations violated the the traditional forms of organization of agricultural production, reduced the efficiency of capital investmenst in improvement of using and protection of land. Therefore, to improve the efficiency of agricultural land use in conditions of formation of market economy, general urgent of time is an in-depth analysis of the types and forms of land use which have found their consolidation at the legislative level. Land management is carried out throughout the country. It enveloped lands irrespective of unequivocal purpose, ownership and the character of using. But goals and objectives of land management, it’s content may be different. An important feature of land management are and it’s types. The current Land Code of Ukraineas the the Law of Ukraine "On Land Management" don’t contain legislative provisions on division of land management for certain types. Meanwhile, it should be noted, that normative and legal acts on land management of the Soviet period (Fundamentals of land legislation of the USSR and the United Republics 1968. Land codes 1978., 1990, 1992 there are two separate types of it - intereconomic (Modern terminology of A.M. Tretyak - territorial and internaleconomic. Modern practice of the actions in the field of land management as evidenced by about the existence of another and a third type of land management – separational. Each of them is characterized by a specific purpose, carried out at different levels. It would therefore be appropriate, hat separate species of land management und their consolidation and in legislation level. Given that the process of implementation of land management for the object of land

H.R.2637: This Act may be cited as the Waste Isolation Pilot Plant Land Withdrawal Act of 1991, introduced in the US House of Representatives, One Hundred Second Congress, First Session, November 27, 1991

International Nuclear Information System (INIS)

Anon.

1991-01-01

Land is withdrawn from all forms of entry, appropriation, and disposal under the public land laws, including without limitation the mineral leasing laws, the geothermal leasing laws, the material sale laws, and the mining laws. The land is reserved for the Secretary of Energy for a duration of ten years for the purpose of conducting test phase activities, including the construction, experimentation, operation, repair and maintenance, disposal, shutdown, monitoring, decommissioning, and other authorized activities. The bill establishes management responsibilities and directs the Secretary to provide for domestic livestock grazing, hunting and trapping, wildlife habitat, the disposal of salt tailings remaining on the surface, and mining under certain conditions

In-flight wind identification and soft landing control for autonomous unmanned powered parafoils

Science.gov (United States)

Luo, Shuzhen; Tan, Panlong; Sun, Qinglin; Wu, Wannan; Luo, Haowen; Chen, Zengqiang

2018-04-01

For autonomous unmanned powered parafoil, the ability to perform a final flare manoeuvre against the wind direction can allow a considerable reduction of horizontal and vertical velocities at impact, enabling a soft landing for a safe delivery of sensible loads; the lack of knowledge about the surface-layer winds will result in messing up terminal flare manoeuvre. Moreover, unknown or erroneous winds can also prevent the parafoil system from reaching the target area. To realize accurate trajectory tracking and terminal soft landing in the unknown wind environment, an efficient in-flight wind identification method merely using Global Positioning System (GPS) data and recursive least square method is proposed to online identify the variable wind information. Furthermore, a novel linear extended state observation filter is proposed to filter the groundspeed of the powered parafoil system calculated by the GPS information to provide a best estimation of the present wind during flight. Simulation experiments and real airdrop tests demonstrate the great ability of this method to in-flight identify the variable wind field, and it can benefit the powered parafoil system to fulfil accurate tracking control and a soft landing in the unknown wind field with high landing accuracy and strong wind-resistance ability.

International and European Security Law

Directory of Open Access Journals (Sweden)

Jonathan Herbach

2012-02-01

Full Text Available Security law, or more comprehensively conflict and security law, on the international level represents the intersection of three distinct but interrelated fields: international humanitarian law (the law of armed conflict, jus in bello, the law of collective security (most identified with the United Nations (UN system, jus ad bellum and arms control law (including non-proliferation. Security in this sense is multifaceted - interest security, military security and, as is often referred to in the context of the EU, human security. As such, the law covers a wide range of specific topics with respect to conflict, encompassing the use of force, including choice of weapons and fighting techniques, extending to the rules applicable in peacekeeping and peace enforcement, and yet also dictating obligations outside the context of conflict, such as safeguarding and securing dual-use materials (those with both peaceful and military applications to prevent malicious use.

Land Degradation Neutrality: Concept development, practical applications and assessment.

Science.gov (United States)

Kust, German; Andreeva, Olga; Cowie, Annette

2017-06-15

The paper explores the background and scientific basis of Land Degradation Neutrality (LDN), a new paradigm reflecting the inter-related aspirations and demands of land-related sustainable development goals. The paper draws on academic literature, field observations, insight from development researchers and practitioners, professional meetings, and agency reports to describe the LDN concept and its relationship with sustainable land management (SLM). We discuss the potential for LDN to facilitate the adoption and assessment of SLM, and to provide a framework to achieve the "land degradation neutral world" goal of the Sustainable Development Agenda 2030. We present insights relevant to the implementation of LDN. These include the need to: consider quality as well as quantity of land degraded and restored; apply an ecosystem-based approach for LDN assessment; consider land degradation risks; recognize different uses of land and approaches to reach the LDN target; and define the LDN baseline and indicators. We discuss the contradictions of using two different modes for evaluating land degradation and successes in land restoration, which we name the "Anti-degradation view" and "Production-advocacy view". To harmonize these approaches we propose that LDN be considered as a phenomenon of equilibrium of the land system, in terms of the balance between deterioration and improvement of terrestrial ecosystems' qualities, functions and services. Indicators to reflect this balance can use different approaches relevant to the various countries and areas, and to the types of land use. Two examples of using this approach are described. The first shows the assessment of the state of LDN based on the homeostasis of land cover and is based on assessment of distribution of ecosystems, and the dynamics of the land cover pattern in the areas prone to land degradation. The second is based on the combination of the well-known principle of Leibig's Law of the Minimum (1843), and Shelford

International law, constitutional law, and public support for torture

Directory of Open Access Journals (Sweden)

Adam S Chilton

2016-03-01

Full Text Available The human rights movement has spent considerable energy developing and promoting the adoption of both international and domestic legal prohibitions against torture. Empirical scholarship testing the effectiveness of these prohibitions using observational data, however, has produced mixed results. In this paper, we explore one possible mechanism through which these prohibitions may be effective: dampening public support for torture. Specifically, we conducted a survey experiment to explore the impact of international and constitutional law on public support for torture. We found that a bare majority of respondents in our control group support the use of torture, and that presenting respondents with arguments that this practice violates international law or constitutional law did not produce a statistically significant decrease in support. These findings are consistent with prior research suggesting, even in democracies, that legal prohibitions on torture have been ineffective.

Geothermal energy and the land resource: conflicts and constraints in The Geysers-Calistoga KGRA

Energy Technology Data Exchange (ETDEWEB)

O' Banion, K.; Hall, C.

1980-07-14

This study of potential land-related impacts of geothermal power development in The Geysers region focuses on Lake County because it has most of the undeveloped resource and the least regulatory capability. First, the land resource is characterized in terms of its ecological, hydrological, agricultural, and recreational value; intrinsic natural hazards; and the adequacy of roads and utility systems. Based on those factors, the potential land-use conflicts and constraints that geothermal development may encounter in the region are identified and the availability and relative suitability of land for such development is determined. A brief review of laws and powers germane to geothermal land-use regulation is included.

Hydrologic Remote Sensing and Land Surface Data Assimilation.

Science.gov (United States)

Moradkhani, Hamid

2008-05-06

Accurate, reliable and skillful forecasting of key environmental variables such as soil moisture and snow are of paramount importance due to their strong influence on many water resources applications including flood control, agricultural production and effective water resources management which collectively control the behavior of the climate system. Soil moisture is a key state variable in land surface-atmosphere interactions affecting surface energy fluxes, runoff and the radiation balance. Snow processes also have a large influence on land-atmosphere energy exchanges due to snow high albedo, low thermal conductivity and considerable spatial and temporal variability resulting in the dramatic change on surface and ground temperature. Measurement of these two variables is possible through variety of methods using ground-based and remote sensing procedures. Remote sensing, however, holds great promise for soil moisture and snow measurements which have considerable spatial and temporal variability. Merging these measurements with hydrologic model outputs in a systematic and effective way results in an improvement of land surface model prediction. Data Assimilation provides a mechanism to combine these two sources of estimation. Much success has been attained in recent years in using data from passive microwave sensors and assimilating them into the models. This paper provides an overview of the remote sensing measurement techniques for soil moisture and snow data and describes the advances in data assimilation techniques through the ensemble filtering, mainly Ensemble Kalman filter (EnKF) and Particle filter (PF), for improving the model prediction and reducing the uncertainties involved in prediction process. It is believed that PF provides a complete representation of the probability distribution of state variables of interests (according to sequential Bayes law) and could be a strong alternative to EnKF which is subject to some limitations including the linear

[Sanitary control of alcohol advertisement in Brazil: a study of the law bills from 1988 to 2004].

Science.gov (United States)

Falcão, Isa Cristina Lopes; Rangel-S, Maria Ligia

2010-11-01

This study analyses law bills towards the sanitary control of alcohol advertisement in the mass media presented to the Brazilian Congress from 1988 to 2004. The sanitary control of this advertising is a controversial issue bringing about an ethical-political debate in which the health-protecting interests conflict with commercial ones even after scientific evidence has established increasing alcohol intake as a health and social issue worldwide. The content analysis of 67 of such law bills was carried out, and these proposals were shown to consist mostly of strategies to both cope with alcohol advertising by dissociating from the product those values that might interfere with the children and teenagers' building of their social identity and limit advertisement contents in the mass media given the higher vulnerability of the subjects in that age range. This study reveals complexes challenges for the control of alcohol advertisement that in turn lead to rethinking the action of the State apparatus in dealing with this major public health issue.

Constitutional law and international law at the turn of the century

Directory of Open Access Journals (Sweden)

JA Frowein

1998-11-01

Full Text Available Constitutional law and international law operate in simultaneous conjunction and reciprocal tension. Both fields seem to have overcome the great challenges of destruction and neglect in the course of the 20th century.Both after World War I and World War II the world experienced new waves of constitution making. In both cases the current German constitutions (the Weimar Constitution of 1919 and the Grundgesetz of 1949 were influential.Characteristic of constitution-making in this century, is the final victory of liberal constitutions based on the rule of law, the Rechtsstaat, fundamental rights, meaningful control of public powers and the establishment of constitutional courts.Following the destruction of World War II, the notion of the Sozialstaat emerged strongly in Germany. In contrast to the Constitution of the United States of America, the principle of the responsibility of the state for social justice has emerged in almost all new constitutions, including Russia, Poland, South Africa, Spain, Italy and Portugal.Where courts are given the mandate to interpret bills of rights, fundamental rights have been developed into foundation stones of the legal system. The presence in a Bill of Rights of restrictive clauses, is important for its analysis. Generally restrictive clauses in new constitutions try to limit the possibilities of restriction.The importance of constitutional rules establishing and legitimizing the political organs, must not be overlooked. Of particular importance is the degree of control over the head of state, a positive attitude among political actors towards the constitution and the protection of the interests of minorities in a democratic system.In the field of Public International Law much of Kant's ideal of an international confederation of peace has been realized. Since 1990 the United Nation's Security Council has shown the potential of becoming a directorate for the community of nations.International law has also been

Land Management and Means of Planning Control

DEFF Research Database (Denmark)

Enemark, Stig

2006-01-01

The paper presents an overall understanding of the Land Management Paradigm for Sustainable Development. It is argued that such an understanding is important for facilitating a holistic approach to the management of land, properties, and natural resources being the key assets of any nation...... the historical and cultural developments of the European countries. Finally, the paper presents a short overview of the Danish approach to planning and landuse management as an example of a planning led approach placing the decision-making power especially at the local level. This concept of decentralization...

Pursuit, Avoidance, and Cohesion in Flight: Multi-Purpose Control Laws and Neuromorphic VLSI

Science.gov (United States)

2010-10-01

spatial navigation in mammals. We have designed, fabricated, and are now testing a neuromorphic VLSI chip that implements a spike-based, attractor...Control Laws and Neuromorphic VLSI 5a. CONTRACT NUMBER 070402-7705 5b. GRANT NUMBER FA9550-07-1-0446 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S...implementations (custom Neuromorphic VLSI and robotics) we will apply important practical constraints that can lead to deeper insight into how and why efficient

75 FR 26991 - Notice of Realty Action; Competitive Sale of Public Land in Deschutes County, Oregon

Science.gov (United States)

2010-05-13

... Deschutes County, Oregon, at not less than the appraised market value through competitive bidding. The sale... resulted or does hereafter result in: (1) Violations of Federal, State, and local laws and regulations that... hazardous substances(s), as defined by Federal or State environmental laws, off, on, into, or under land...

Transfer and Transition: Interagency Coordination for Managing Public Lands at UMTRCA Title II Sites in Wyoming – 16614

Energy Technology Data Exchange (ETDEWEB)

Shafer, David S. [U.S. Dpartment of Energy, Office of Legacy Management; Vanek, Tim [U.S.Department of Energy, Office of Legacy Management; Ribeiro, Tracy [U.S. Department of Energy, Office of Legacy Management; Bahrke, Cheri [Navarro Research and Engineering

2016-03-06

By the end of fiscal year 2025, the U.S. Department of Energy (DOE) Office of Legacy Management (LM) is anticipating adding 17 sites remediated under Title II of the Uranium Mill Tailings Radiation Control Act (UMTRCA) to the current inventory of 90 sites that it manages. Among the new sites are ones where federal public lands occur within the proposed long-term care boundary, the boundary determined by the Nuclear Regulatory Commission and LM as necessary to maintain site protectiveness for the entombed uranium mill tailings and residual groundwater contamination. For these sites, public land withdrawals for land and minerals will need to be established. LM’s primary mission at UMTRCA sites is to protect the public and the environment from exposure to contamination at the sites. For the sites with public lands or federally controlled minerals that will be transferring to LM, the Office will apply to the Department of the Interior (DOI) Bureau of Land Management (BLM) for new, public land and mineral withdrawals. At most current LM UMTRCA sites that involved public lands and minerals, DOI granted DOE “full administrative jurisdiction” and permanent withdrawals. Hence, these withdrawals are, permanently, no longer subject to public land, mining, and mineral-leasing laws and regulations. LM is coordinating with DOI/BLM in Wyoming to permanently withdraw full and partial jurisdiction at future UMTRCA Title II sites in that state. This approach would allow LM to fully administer surface lands and minerals, where necessary, and DOI and LM to administer surface lands and leasable minerals where it would not jeopardize sites’ radiological safety and long-term public and environmental protection. This “shared-jurisdiction approach” will meet LM’s strategic goal of protecting human health and the environment but also allow BLM to fulfill their mission to “manage and conserve the lands under the mandate of multiple-use and sustained yield.” In addition, LM

Gemachtes Recht - gegebenes Recht / Made Law - Given Law

Directory of Open Access Journals (Sweden)

Lorenz Engi

2007-08-01

Full Text Available Das Recht der Moderne ist auf den Begründungsmodus der Positivität umgestellt, und es ist Instrument einer Politik mit weitreichendem Steuerungsanspruch. In Kombination mit einer Steigerung der Umweltkomplexität ergibt sich daraus für das Recht eine starke Belastung. Es wird quantitativ ausgedehnt, an normativer Kraft aber eher ärmer. Als neuer Faktor tritt die Globalisierung der Weltverhältnisse in diese Situation ein. Da das Recht sich globalisieren kann, die Politik aber nur begrenzt (kein Weltstaat, ergeben sich daraus Möglichkeiten der partiellen Wiederabkoppelung des Rechts von der Politik. Das Recht könnte der Politik von politikunabhängigen Legitimationsgrundlagen her verstärkt wieder eigenständig gegenübertreten. Modern law has shifted towards a positivistic mode of reasoning,and is the instrument of a form of politics that claims wide‐ranging rights of control. In combination with an increase of environmental complexity, law is impacted strongly. It is quantitatively extended, thereby losing its normative power. A globalization of world conditions enters the situation as a new factor. As law has the ability to globalize itself, whereas politics can only do so in a limited way (not a world state, possibilities for a partial re‐disengagement of law from politics result from this. Law is now able to face politics more strongly from a basis of legitimization that is independent from politics.

Law Panel in action.

Science.gov (United States)

Odulana, J

In September 1976 the Africa Regional Council (ARC) of IPPF created a Law Panel to 1) advise the ARC on the emphasis of laws and parenthood programs in the region, 2) investigate legal obstacles to family planning and ways of removing them, 3) institute a monitoring service on laws and court decisions affecting planned parenthood, and 4) prepare a list of lawyers and legal reformers by country. The panel has 1) recommended adoption of an IPPF Central Medical Committee and Central Law Panel statement on sterilization, adolescent fertility control, and the use of medical and auxiliary personnel in family planning services with guidelines for Africa; 2) appointed National Legal Correspondents to carry on the monitoring service mentioned above in 18 countries; and 3) discussed solutions to problems in delivering family planning services with family planning associations in Tanzania, Zambia, Mauritius, Madagascar, and Kenya. Laws governing family planning education and services, marriage, divorce, and maternity benefits in these countries are summarized. In 1978 the panel will hold 2 workshops on law and the status of women.

Altered knee joint neuromuscular control during landing from a jump in 10-15 year old children with generalised joint hypermobility. A substudy of the CHAMPS-study Denmark

DEFF Research Database (Denmark)

Junge, Tina; Juul-Kristensen, B; Bloch Thorlund, Jonas

Generalised Joint Hypermobility (GJH) is considered an intrinsic risk factor for knee injuries. Knee neuromuscular control during landing may be altered in GJH due to reduced passive stability. The aim was to identify differences in knee neuromuscular control during landing of the Single...... Electrical activity (MVE). There was no difference in jump length between groups. Before landing, GJH had 33% lower Semitendinosus, but 32% higher Gastrocnemius Medialis activity and 39% higher co-contraction of the lateral knee muscles, than controls. After landing, GJH had 36% lower Semitendinosus activity...... than controls, all significant findings. Although the groups performed equally in SLHD, GJH had a Gastrocnemius Medialis-dominated neuromuscular strategy before landing, plausibly caused by reduced Semitendinosus activity. Reduced Semitendinosus activity was seen in GJH after landing...

Integrated Weed Control for Land Stewardship at Legacy Management's Rocky Flats Site in Colorado - 13086

Energy Technology Data Exchange (ETDEWEB)

Nelson, Jody K. [Stoller LMS Team, Contractor to the U.S. Department of Energy Office of Legacy Management, 11025 Dover Street, Suite 1000, Westminster, Colorado 80021 (United States)

2013-07-01

Land stewardship is one of nine sustainability programs in the U.S. Department of Energy's Environmental Management System. Land stewardship includes maintaining and improving ecosystem health. At the Rocky Flats Site near Westminster, Colorado, land stewardship is an integral component of the Office of Legacy Management's post-closure monitoring and management at the site. Nearly 263 hectares (650 acres) were disturbed and re-vegetated during site cleanup and closure operations. Proactive management of revegetation areas is critical to the successful reestablishment of native grasslands, wetlands, and riparian communities. The undisturbed native plant communities that occur at the site also require active management to maintain the high-quality wetlands and other habitats that are home to numerous species of birds and other wildlife such as elk and deer, rare plant communities, and the federally listed threatened Preble's meadow jumping mouse. Over the past several decades, an increase of Noxious weeds has impacted much of Colorado's Front Range. As a result, weed control is a key component of the land stewardship program at Rocky Flats. Thirty-three species of state-listed Noxious weeds are known to occur in the Central and Peripheral Operable Units at Rocky Flats, along with another five species that are considered invasive at the site. Early detection and rapid response to control new invasive species is crucial to the program. An integrated weed control/vegetation management approach is key to maintaining healthy, sustainable plant communities that are able to resist Noxious weed invasions. Weed mapping, field surveys, and field-staff training sessions (to learn how to identify new potential problem species) are conducted to help detect and prevent new weed problems. The integrated approach at Rocky Flats includes administrative and cultural techniques (prevention), mechanical controls, biological controls, and chemical controls. Several

Altering the use of agricultural into construction land: Practice and trends

Directory of Open Access Journals (Sweden)

Počuča Milan

2015-01-01

Full Text Available Preservation of agricultural land as an imperative of prosperity of agriculture of the Republic of Serbia needs to be observed through causal questions as well, such as change of purpose of agricultural land into construction land, which is necessarily followed by conversion, a decade-long problem. Insufficiently resolved current questions of the aforementioned within legislative framework open up the possibility for improper use and exploitation of agricultural land. It is necessary to regulate the issue of conversion of construction land by legislative regulations i.e. altering use rights into property rights on construction land, and by doing so, open the way to investments in the Republic of Serbia. With the analysis of the effects of conversion and the adoption of a special law on this issue, construction activity would further prosper. The aim of this paper is to assess adequately the current problems of consumption, preservation and actual implementation of transferring agricultural land to construction land, with a view of the facts, practices and tendencies.

Optimal control for power-off landing of a small-scale helicopter : a pseudospectral approach

NARCIS (Netherlands)

Taamallah, S.; Bombois, X.; Hof, Van den P.M.J.

2012-01-01

We derive optimal power-off landing trajectories, for the case of a small-scale helicopter UAV. These open-loop optimal trajectories represent the solution to the minimization of a cost objective, given system dynamics, controls and states equality and inequality constraints. The plant dynamics

METHODOLOGICAL PROBLEMS OF LAND USE PLANNING LOCALLY IN TERMS OF NEW LAND RELATIONS AND DECENTRALIZATION OF POWER

Directory of Open Access Journals (Sweden)

N. Kapinos

2017-05-01

Full Text Available Summary Fundamental changes of land relations that have been established for the period of land reform in the independent Ukraine and the new socio-economic and environmental problems identified new character and content of the land. During the land reform in Ukraine to land management encountered new challenges that focus on the implementation of land policy and land relations fundamental change. Accordingly, to land management faces new challenges. Today for events to decentralize power facilities, new land - the territory united local communities should determine for whom the prospect of organizing the use and protection of land and other natural resources. However, the current land law the answer to this problem does not. Instead, normalization is an attempt to issues related to improving the quality of drafting documentation spatial planning (urban planning documents establish procedures for integrated development plans of local communities, the introduction of rules regulating local area to establish procedures for planning, construction and other use areas and about objects, improving public hearings to address public interests and relieve tension in the planning and construction of the territories. However, planning documentation does not solve the problems of perspective development of the organization use and protection of land and other natural resources. There is a need to distinguish between objects of regional urban planning and land management. This is because the urban planning regulations covering mainly two categories of land (settlements, industry, transport, communications and other purposes, not including agricultural land, which houses objects of capital construction. However, they make up for Ukraine just 4.2% of the total area. For the remaining seven categories of land (agricultural land, forest and water resources, conservation, recreation, recreational purposes land use planning and their protection should be based on

Wie se grond koop Boas (Rut 4:9)?/Whose land did Boaz buy (Ruth ...

African Journals Online (AJOL)

According to the laws and customs in the times of the judges, however, a widow was not allowed to inherit land from her husband, and a woman was not allowed to own, buy or sell land. In this article the following possibilities are investigated: Either the writer of the Ruth narrative was so far removed from the time of Ruth ...

Nuclear Energy Law and Arbo Law/Safety Law

International Nuclear Information System (INIS)

Eijnde, J.G. van den

1986-01-01

The legal aspects of radiation protection in the Netherlands are described. Radiation protection is regulated mainly in the Nuclear Energy Law. The Arbo Law also has some sections about radiation protection. The interaction between both laws is discussed. (Auth.)

A real time data acquisition system using the MIL-STD-1553B bus. [for transmission of data to host computer for control law processing

Science.gov (United States)

Peri, Frank, Jr.

1992-01-01

A flight digital data acquisition system that uses the MIL-STD-1553B bus for transmission of data to a host computer for control law processing is described. The instrument, the Remote Interface Unit (RIU), can accommodate up to 16 input channels and eight output channels. The RIU employs a digital signal processor to perform local digital filtering before sending data to the host. The system allows flexible sensor and actuator data organization to facilitate quick control law computations on the host computer. The instrument can also run simple control laws autonomously without host intervention. The RIU and host computer together have replaced a similar larger, ground minicomputer system with favorable results.

Land-use conflicts in The Geysers-Calistoga KGRA: a preliminary study

Energy Technology Data Exchange (ETDEWEB)

O' Banion, K.; Hall, C.; Haven, K.

1979-12-01

This preliminary study of potential land use conflicts of geothermal development in The Geysers region, one component of the LLL/LBL socioeconomic program, focuses on Lake County because it has most of the undeveloped resource and the least regulatory capability. The land resource is characterized in terms of its ecological, hydrological, agricultural, and recreational value; intrinsic natural hazards; and the adequacy of roads and utility systems and each factor is depicted on a map. Then those factors are analyzed for potential conflicts with both geothermal and urban development and the conflicts displayed on respective maps. A brief review of laws and methods germane to geothermal land-use regulation is included.

Effect of landslides on the structural characteristics of land-cover based on complex networks

Science.gov (United States)

He, Jing; Tang, Chuan; Liu, Gang; Li, Weile

2017-09-01

Landslides have been widely studied by geologists. However, previous studies mainly focused on the formation of landslides and never considered the effect of landslides on the structural characteristics of land-cover. Here we define the modeling of the graph topology for the land-cover, using the satellite images of the earth’s surface before and after the earthquake. We find that the land-cover network satisfies the power-law distribution, whether the land-cover contains landslides or not. However, landslides may change some parameters or measures of the structural characteristics of land-cover. The results show that the linear coefficient, modularity and area distribution are all changed after the occurence of landslides, which means the structural characteristics of the land-cover are changed.

Who controls the uses of organs after death? Law in the books, law in practice and the view of the people.

Science.gov (United States)

Naffine, Ngaire; Richards, Bernadette; de Lacey, Sheryl; Braunack-Mayer, Annette; Rogers, Wendy

2012-12-01

The conventional wisdom is that we are free to dispose of our organs at death and that they will be employed according to our wishes. However, this reflects neither the formal law nor medical practice. This article explores the theory underlying the principle of self-determination after death. It presents an overview of Australian law and the way that the law is interpreted in clinical practice. It then presents the results of a community survey on organ disposition, and identifies a gap between community expectations and the current operation of Australian law. It concludes with some specific recommendations for development of the law to align it more closely with contemporary community views.

Accelerated Adoption of Smoke-Free Laws After Ratification of the World Health Organization Framework Convention on Tobacco Control

Science.gov (United States)

Uang, Randy; Hiilamo, Heikki

2016-01-01

Objectives. We sought to evaluate the effect of ratifying the World Health Organization Framework Convention on Tobacco Control (FCTC) on countries enacting smoke-free laws covering indoor workplaces, restaurants, and bars. Methods. We compared adoption of smoke-free indoor workplace, restaurant, and bar laws in countries that did versus did not ratify the FCTC, accounting for years since the ratification of the FCTC and for countries’ World Bank income group. Results. Ratification of the FCTC significantly (P restaurants and bars. Compared with high-income countries, upper-middle–income countries had a significantly higher probability of smoke-free indoor workplace laws. Conclusions. The FCTC accelerated the adoption of smoke-free indoor workplace, restaurant, and bar laws, with the greatest effect in the years immediately following ratification. The policy implication is that health advocates must increase efforts to secure implementation of FCTC smoke-free provisions in countries that have not done so. PMID:26562125

Economic impacts of current-use assessment of rural land in the east Texas pineywoods region

Science.gov (United States)

Clifford A. Hickman; Kevin D. Crowther

1991-01-01

Those provisions of Texas law that authorize optional current-use property tax assessment for forest and other rural land were studied to: (1) estimate the extent of adoption by qualifying property owners, (2) estimate the effects on assessments and taxes of enrolled land, (3) estimate the impacts on revenues received by local units of government, (4) estimate the...

The new law on radiation and nuclear power

International Nuclear Information System (INIS)

Niittylae, A.

1990-01-01

The Law on Nuclear Energy, which entered into force in 1988, controls the use of nuclear power. The new Law on Radiation is under consideration in the Parliament. The internationally approved main principles on radiation protection are the basis of the law. In the article, these principles and the contents of the law are described

Spatial-temporal migration laws of Cd in Jiaozhou Bay

Science.gov (United States)

Yang, Dongfang; Li, Haixia; Zhang, Xiaolong; Wang, Qi; Miao, Zhenqing

2018-02-01

Many marine bays have been polluted by various pollutants, and understanding the migration laws is essential to scientific research and pollution control. This paper analyzed the spatial and temporal migration laws of Cd in waters in Jiaozhou Bay during 1979—1983. Results showed that there were twenty spatial-temporal migration law for the migration processes of Cd. These laws were helpful for better understanding the migration of Cd in marine bay, providing basis for scientific research and pollution control.

KEBERADAAN KONSEP RULE BY LAW (NEGARA BERDASARKAN HUKUM DIDALAM TEORI NEGARA HUKUM THE RULE OF LAW

Directory of Open Access Journals (Sweden)

Made Hendra Wijaya

2013-11-01

Full Text Available This research titled, the existence of the concept of rule by law (state law within thestate theories of law the rule of law, which is where the first problem: How can theadvantages of Rule by Law in the theory of law Rule of Law?, How is the dis advantages of aconcept of Rule by law in the theory of law Rule of Law.This research method using the method of normative, legal research that examines thewritten laws of the various aspects, ie aspects of the theory, history, philosophy, comparative,structure and composition, scope, and content, consistent, overview, and chapter by chapter,formality, and the binding force of a law, and the legal language used, but did not examine orimlementasi applied aspects. By using this approach of Historical analysis and approach oflegal conceptual analysis.In this research have found that the advantages of the concept of Rule by Law lies in theproviding of certainty, can also be social control for the community, thus ensuring all citizensin good order at all reciprocal relationships within the community. And Disadvantages of theconcept of Rule by Law if the Law which legalized state action is not supported by democracyand human rights, and the principles of justice, there will be a denial of human rights,widespread poverty, and racial segregation, and if the law is only utilized out by theauthorities as a means to legalize all forms of actions that violate human can inflicttotalitarian nature of the ruling

Carbon dioxide emissions from forestry and peat land using land-use/land-cover changes in North Sumatra, Indonesia

Science.gov (United States)

Basyuni, M.; Sulistyono, N.; Slamet, B.; Wati, R.

2018-03-01

Forestry and peat land including land-based is one of the critical sectors in the inventory of CO2 emissions and mitigation efforts of climate change. The present study analyzed the land-use and land-cover changes between 2006 and 2012 in North Sumatra, Indonesia with emphasis to CO2 emissions. The land-use/land-cover consists of twenty-one classes. Redd Abacus software version 1.1.7 was used to measure carbon emission source as well as the predicted 2carbon dioxide emissions from 2006-2024. Results showed that historical emission (2006-2012) in this province, significant increases in the intensive land use namely dry land agriculture (109.65%), paddy field (16.23%) and estate plantation (15.11%). On the other hand, land-cover for forest decreased significantly: secondary dry land forest (7.60%), secondary mangrove forest (9.03%), secondary swamp forest (33.98%), and the largest one in the mixed dry land agriculture (79.96%). The results indicated that North Sumatra province is still a CO2 emitter, and the most important driver of emissions mostly derived from agricultural lands that contributed 2carbon dioxide emissions by 48.8%, changing from forest areas into degraded lands (classified as barren land and shrub) shared 30.6% and estate plantation of 22.4%. Mitigation actions to reduce carbon emissions was proposed such as strengthening the forest land, rehabilitation of degraded area, development and plantation forest, forest protection and forest fire control, and reforestation and conservation activity. These mitigation actions have been simulated to reduce 15% for forestry and 18% for peat land, respectively. This data is likely to contribute to the low emission development in North Sumatra.

Аccounting and methodological aspects of capital expenditure for land improvement

Directory of Open Access Journals (Sweden)

J.P. Melnychuk

2016-07-01

Full Text Available The article highlights the process of reflection in accounting the capital costs for land improvement. The main legislation governing this issue is covered. Also the article has agreed the key issues that ensure in accounting for capital expenditures for farmland improving. The survey has benefited such general scientific methods as: induction and deduction, dialectic, historical and systematic methods and specific methods of accounting. Due to the land reform the ownership of the land was changed. Lands which were owned by farms have been privatized and have received a particular owner. Now privatized lands constitute a significant part of farmland. The land managers require quality accounting information about composition and state of the land and improvements that occur to make an effective management. The numerous changes in legislation generate controversies in their interpretation and, consequently, it results in appearance of the discrepancies in the conduct of cost accounting for capital land improvement which will effect on the amount of net profit in future. The article reflects the economic substance of the process and fundamentally describes the implementation method of accounting for capital expenditure for land in accordance with the applicable law.

25 CFR 166.100 - What special tribal policies will we apply to permitting on Indian agricultural lands?

Science.gov (United States)

2010-04-01

... preferences in permits advertised for bid under § 166.221 of this part, by allowing prospective Indian operators to match the highest responsible bid (unless the tribal law or leasing policy specifies some other... THE INTERIOR LAND AND WATER GRAZING PERMITS Tribal Policies and Laws Pertaining to Permits § 166.100...

A high-fidelity airbus benchmark for system fault detection and isolation and flight control law clearance

Science.gov (United States)

Goupil, Ph.; Puyou, G.

2013-12-01

This paper presents a high-fidelity generic twin engine civil aircraft model developed by Airbus for advanced flight control system research. The main features of this benchmark are described to make the reader aware of the model complexity and representativeness. It is a complete representation including the nonlinear rigid-body aircraft model with a full set of control surfaces, actuator models, sensor models, flight control laws (FCL), and pilot inputs. Two applications of this benchmark in the framework of European projects are presented: FCL clearance using optimization and advanced fault detection and diagnosis (FDD).

Air Land Sea Bulletin

Science.gov (United States)

2014-11-01

Unidentified Royal Air Force Regiment forward air controllers from the Air Land Integration Cell , Based at Royal Air Force Honington, Suffolk (United...heavy as an actual weapon.4 Ideally, this practice imbued a soldier with more energy and stamina during real combat, given the feel of the genuine but...through tactical forces, to individual training. Unidentified Royal Air Force Regiment forward air controllers from the Air Land Integration Cell , Based

Sea-land limits: a case study

Directory of Open Access Journals (Sweden)

Afranio R. de Mesquita

2011-12-01

Full Text Available The limits between sea and land were estimated at "Pulso" beach located in the Southeastern Brazilian shelf (φ = 23°33/17.4886"S; Λ = 045° 13'13.0504"W - WGS84, between the island of São Sebastião and the city of Ubatuba, SP, Brazil. The relative sea level of the year 1831 at "Pulso" beach, as per Brazilian law Number 9760 dated from 1946, was estimated and materialized. The retro-estimation allowed the demarcation of the Legal Sea-Land Limits at "Pulso" beach as per the terms of the law. The accuracy of the procedure for the transference of the long-term sea level from the research station of Ubatuba to "Pulso" beach was assessed by parallel work of geometrical leveling referred to the IBGE (Brazilian Institute of Geography and Statistics geodetic network. The motivation, the hypotheses (Brest, Cananeia and IPCC and the methods here used are described, together with a short history of the Legal Sea-Land Limits. The results indicated that the legal Sea-Land Limits at "Pulso" beach are well within the beach area. They were determined as per law 9760, and there is the need to reactivate the national network of sea level gauge.Os limites entre mar e terra foram estimados na praia chamada Pulso, localizada na costa sudeste do Brasil (φ = 23°33'17, 4886"S; Λ = 045°13'13, 0504"W entre a Ilha de São Sebastião e a cidade de Ubatuba, no Estado de São Paulo, SP, Brasil. O nível relativo do mar do ano de 1831 na praia do Pulso, ou "Praia do Pulso" (PP, foi estimado e materializado, de acordo com a Lei brasileira Número 9760 de 1946. A acurácia do procedimento foi acompanhada por trabalho paralelo de nivelamento geométrico referido ao sistema nacional de geodésia do IBGE (Instituto Brasileiro de Geografia e Estatística. A motivação, as hipóteses (Brest, Cananeia e IPCC e os métodos utilizados são descritos, acompanhados por um breve histórico dos "Terrenos de Marinha". Os resultados indicaram que os limites em (PP estão bem dentro

Sliding Mode Control of DFIG Wind Turbines with a Fast Exponential Reaching Law

Directory of Open Access Journals (Sweden)

Linyun Xiong

2017-11-01

Full Text Available This paper proposes a novel sliding mode control (SMC technique for doubly fed induction generators (DFIGs based on the fast exponential reaching law (FERL. The proposed FERL-based SMC is capable of reducing to a large extent the chattering phenomena existing in the sliding stage. Meanwhile, the reaching stage is accelerated with the introduction of an adaptive gain. The proposed method is employed in a DFIG-based wind energy conversion system (WECS for direct power control (DPC. The FERL-based DPC approach is tested with simulations conducted in Matlab/Simulink under the scenarios of unbalanced grid voltage, grid fault conditions and highly unstable wind speed accompanied by an experimental study. The simulations and experimental results reveal the better performance of the proposed control method in active/reactive power tracking and dc-link voltage maintenance.

Benin - Access to Land - Rural

Data.gov (United States)

Millennium Challenge Corporation — This evaluation presents evidence from the first large-scale randomized controlled trial of a land formalization program. This study examines the links between land...

A New Turbo-shaft Engine Control Law during Variable Rotor Speed Transient Process

Science.gov (United States)

Hua, Wei; Miao, Lizhen; Zhang, Haibo; Huang, Jinquan

2015-12-01

A closed-loop control law employing compressor guided vanes is firstly investigated to solve unacceptable fuel flow dynamic change in single fuel control for turbo-shaft engine here, especially for rotorcraft in variable rotor speed process. Based on an Augmented Linear Quadratic Regulator (ALQR) algorithm, a dual-input, single-output robust control scheme is proposed for a turbo-shaft engine, involving not only the closed loop adjustment of fuel flow but also that of compressor guided vanes. Furthermore, compared to single fuel control, some digital simulation cases using this new scheme about variable rotor speed have been implemented on the basis of an integrated system of helicopter and engine model. The results depict that the command tracking performance to the free turbine rotor speed can be asymptotically realized. Moreover, the fuel flow transient process has been significantly improved, and the fuel consumption has been dramatically cut down by more than 2% while keeping the helicopter level fight unchanged.

A programme law for the French energy policy

International Nuclear Information System (INIS)

Anon.

2005-01-01

A programme law on energy has been published on the 13. of July 2005 to the Official Gazette. By this law, the supply safety will be secured, a competitive price of energy will be guaranteed and the greenhouse effect controlled. The trends of the law are given here as well as the means taken up to make this law enforced. (O.M.)

Altered knee joint neuromuscular control during landing from a jump in 10-15year old children with Generalised Joint Hypermobility. A substudy of the CHAMPS-study Denmark

DEFF Research Database (Denmark)

Junge, Tina; Wedderkopp, Niels; Thorlund, Jonas Bloch

2015-01-01

Generalised Joint Hypermobility (GJH) is considered an intrinsic risk factor for knee injuries. Knee neuromuscular control during landing may be altered in GJH due to reduced passive stability. The aim was to identify differences in knee neuromuscular control during landing of the Single...... than controls, all significant findings. Although the groups performed equally in SLHD, GJH had a Gastrocnemius Medialis dominated neuromuscular strategy before landing, plausibly caused by reduced Semitendinosus activity. Reduced Semitendinosus activity was seen in GJH after landing...

Gun Laws and Crime: An Empirical Assessment

OpenAIRE

Matti Viren

2012-01-01

This paper deals with the effect of gun laws on crime. Several empirical analyses are carried to investigate the relationship between five different crime rates and alternative law variables. The tests are based on cross-section data from US sates. Three different law variables are used in the analysis, together with a set of control variables for income, poverty, unemployment and ethnic background of the population. Empirical analysis does not lend support to the notion that crime laws would...

Safety philiosophies in technology-related law discussed for the example of atomic energy law