Foe System Research Articles

DUCNP@Mn-MOF/FOE as a Highly Selective and Bioavailable Drug Delivery System for Synergistic Combination Cancer Therapy.

Heterostructures comprising lanthanide-doped upconversion nanoparticles (DUCNPs) and metal-organic frameworks (MOFs) are emerging as promising nanosystems for integrating medical diagnosis and treatment. Here, the DUCNP@Mn-MOF nanocarrier was developed, which showed good efficiency for loading and delivering a cytotoxic antitumor agent (3-F-10-OH-evodiamine, FOE). The combined advantages of the pH-responsive and peroxidase-like properties of Mn-MOF and the unique optical features of DUCNPs granted the DUCNP@Mn-MOF/FOE system synergistic chemodynamic and chemotherapeutic effects. The DUCNP@Mn-MOF nanocarrier effectively overcame the intrinsic limitations of FOE, such as its unfavorable physicochemical properties and limited in vivo potency. This complexed nanosystem was responsive to the tumor microenvironment and showed excellent tumor targeting capability. Thus, DUCNP@Mn-MOF/FOE exhibited highly selective and bioavailable drug delivery properties and is promising for cancer therapy. In a mouse breast cancer model, DUCNP@Mn-MOF/FOE inhibited tumor growth without significant toxicity. Therefore, the proposed nanosystem represents a promising theragnostic platform for multimodal combination diagnosis and therapy of tumors.

Method for accurate multi-target discrimination and compound friend or foe identification of millimetre wave system based on laser ranging technology

This paper uses laser ranging technology, by multiplexing of ranging buttons, reconstruction of laser rangefinders and other equipment, and utilizing distance-based comparison methods to achieve accurate discrimination of millimetre-wave identification friend or foe systems under multi-target conditions, further improving identification reliability. The experiment proves that the method is feasible and effective.

차기 구축함용 피아식별장치의 구성과 원형 위상배열 안테나에 대한 연구

차기 구축함용 피아식별장치의 구성과 원형 위상배열 안테나에 대한 연구

激光敌我识别系统中滤光膜的研制

激光敌我识别系统中滤光膜的研制

The Study of Optical Properties of Laser Identification Friend or Foe System

The optical properties is essential to the process of identification in Laser Identification Friend or Foe (Laser-IFF) system. The corner cube reflector (CCR), composed of three mutually orthogonal reflective micromirrors, is extensively used in Laser-IFF system for it can reflect incident light at any angle to its incoming direction. So the micromachined CCR array is set to be the most important component of the responder. And assuming the Laser-IFF system is used in missiles, we present an analysis of the optical properties about the responder sectional area, the signal power of the responder and the echo power from the responder to the inquirer, considering at different effect distances between the inquirer and responder, divergence half-angle, CCR arrays reflectivity and other factors. Further field testing about the system can reference obtained experimental results and conclusions.

Prediction of Equipment-to-Equipment Coupling Through Antennas Mounted on An Aircraft

Modern military and civil aircraft have various radar and communication equipments placed on them for different actions. Electromagnetic interference (EMI) can be easily coupled through various antennas which are mounted on the aircraft. It is therefore desirable to exactly predict their effect on one another as much as possible. In this paper the equipment-to-equipment coupling (ETEC) is proposed which is suitable to accurately determine the electromagnetic compatibility (EMC) safety margin of the aircraft radio system. By employing the microwave network theory the equivalent circuit model of the Identification Friend or Foe System (IFFS) and the Ground-to-Air (GTA) communication system of the aircraft can be obtained and then the ETEC is accurately calculated. In this way the electromagnetic coupling level between the two subsystems can be easily determined. Basing on the accurate coupling, it is allowed to simply and exactly evaluate the electromagnetic interference safety margin of the receiver.

5.5.5 Systems Engineering with ICDM – A Case Study

AbstractThis paper presents and demonstrates the design of a new system using the ICDM method.ICDM is an Integrated, Customer Driven, Conceptual Design Method that encompasses the entire process of conceptual design, starting from customer needs up to the selection of the best solution to that need.In an engineering design process, the most critical phase is the initial conceptualization of the needed system or product, where about 75% of its life cycle cost is committed (Blanchard 1978). Therefore, using efficient methodologies and practices during this phase is essential to the whole effort success (Pahl 1984).ICDM, demonstrated in this paper, is a flexible 10 step method, tailorable to multifaceted project needs and organization's requirements.The case study describes the stages of a system definition and conceptual design of a Personal Identification of Friend or Foe system ‐ PIFF. The problem behind this need is defined as the difficulty of friend or foe identification in terror fighting or infantry arena.As a result, the case study showed the ability of ICDM to enable quick and efficient team decisions upon the customer needs and produced an optimal conceptual design that scored the best in terms of Customer Satisfaction Rating (CSR).