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182results about How to "Overcoming inefficiencies" patented technology

Opportunistic wireless mesh network methods

The invention relates to opportunistic wireless mesh networks which operate under random networking conditions. Such random network conditions typically limit the effectiveness of prior art wireless mesh networks, and more particularly to those supporting low power devices within the wireless network. Random network conditions include: random power supply, random node distribution, random node mobility, high mobility of nodes, random wireless link fluctuations, and random application traffic. The opportunistic wireless mesh network utilizes a two-layer architecture Embedded Wireless Interconnect (EWI) framework, which is adopted as the architecture reference model. A mesh network according to the invention supports opportunistically determining both mesh interconnections and network transmission routes by providing nodes with broadcast modules and unicast modules. The methods provide novel low power opportunistic wireless mesh networks that support interconnection with existing network infrastructures such as Open System Interconnect (OSI) based wired or wireless networks. Network embodiments provide protocol translation at network borders to allow micro- and macro-mobility management for wireless devices and their associated users. Additionally embodiments of the opportunistic wireless mesh networks address reduction in power consumption.
Owner:SENNET COMM

Heat-pump-type energy-storage, power-supply and heat-supply method and device

The invention provides a heat-pump-type energy-storage, power-supply and heat-supply method and device. According to the heat-pump-type energy-storage, power-supply and heat-supply method and device,a refrigerating heat-storage mode and a heat-supply and power-supply mode are included. When the refrigerating heat-storage mode is adopted, normal-temperature work gas is subjected to adiabatic compression through a compressor, then conducts equal-pressure heat release through a heat storage system, then enters a turbine to conduct adiabatic expansion to do external work, then conducts equal-pressure heat absorption through a cold storage system, and finally serves as a cold source supply to be released to the outside world; and the heat-pump-type energy-storage, power-supply and heat-supplydevice is sequentially connected with a gas inlet device, the compressor, a first heat exchanger, the heat storage system, the turbine, a second heat exchanger, the cold storage system and a gas outlet device in series in the moving direction of the work gas; and on the contrary, the heat-supply and power-supply mode is adopted. Through the method and device with the mutually-reversible function of refrigerating heat-storage and power-supply and heat-supply, the problems of wind abandoning and light abandoning in photovoltaic power generation and wind energy power generation are solved, and the problems such as large diurnal temperature variation in the western region is get rid of while heat storage and power supply are achieved; and warm gas is provided for a community while cold gas isprovided for an enterprise or a factory in the daytime and power supplying is conducted in the nighttime.
Owner:SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI

Asymmetric elliptical chain gear for a bicycle

According to the present invention, an asymmetric elliptical chain gear (10) is characterized by having a shape formed by a combination of: a first ellipse (1) the major axis of which is located on the X-axis of a vertical coordinate system and the minor axis of which is located on the Y-axis of the vertical coordinate system; a first straight line (3) which is perpendicular to the minor axis, and which intersects the first ellipse (1); and a second ellipse (2) which exists on the first straight line (3) and which passes first inflection points (A, A′) that form a fixed angle (a) with respect to the minor axis in the clockwise direction, and which contacts ellipse contact points (B, B′) on the first ellipse (1) that are located at points forming a fixed angle (b) in the clockwise direction. The asymmetric elliptical chain gear (10) of the present invention has a shape formed by a combination of a straight line section ranging from a second reflection point (C), which is a cross point between the first straight line (3) and the first ellipse (1), to the first inflection point (A); a second ellipse section ranging from the first inflection point (A) to the ellipse contact point (B); and a first ellipse section ranging from the ellipse contact point (B) to the second inflection point (C′).
Owner:CHOI YUN SEOK

Protocol adapter framework for integrating non-IIOP applications into an object server container

In a computer system containing an object server, a method and apparatus for providing access to objects and methods via arbitrary remote protocols is disclosed. This includes a mechanism known as the protocol adapter framework that allows protocol adapters to manage remote socket sessions, encrypt communication on this session, translate text to the local character set, perform security validation of the remote user, log incoming work requests, classify the incoming work request for differentiated service purposes, and queue the work for execution. Also, included is a mechanism to invoke the protocol adapter in order to manipulate output from the execution of a method on a server object and send it back to the original requester. This allows the implementers of objects and methods that reside in the object server rather than the owner of the object server to provide a protocol adapter that allows communication with remote clients using any arbitrary protocol that the object implementer deems appropriate. In this way, the object implementer can enjoy benefits such as differentiated service, workload recording, server object process management, process isolation, error logging, systems management and transactional services of running objects in a robust object server container.
Owner:IBM CORP

Heat pump type alternating energy storing and power supplying method and device

The invention provides a heat pump type alternating energy storing and power supplying method and device. The heat pump type alternating energy storing ad power supplying method comprises an energy storing and heat supplying mode and a power supplying and heat supplying mode. When the energy storing and heat supplying mode is used, a normal temperature working medium absorbs heat isobarically through a first heat storing system to be adiabatically compressed by a compressor, then releases heat isobarically through a second heat storing system, then enters a turbine for heat insulation and expansion to carry out external work, and finally is released to the outside as a heating supply. The device is sequentially connected in series with an air inlet device, a first heat exchanger, a first heat storing system, a compressor, a second heat exchanger, a second heat storing system, the turbine and an air outlet device in the moving direction of working air. According to the heat pump type alternating energy storing and power supplying method and the device, the problems of wind curtailment and light curtailment in photovoltaic power generation and wind power generation and the problem ofpeak cutting and valley filling in peak-valley electricity are solved; heat supply is achieved when energy storing and power supplying are carried out; and afterheat of waste air is recycled into another heat storing system, and heat-work conversion efficiency is improved.
Owner:SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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