Freescale Semiconductor,inc.

Dow Global Technolgoies LLC

Chinese Academy of Sciences

Stmicroelectronics R&d (shanghai) Co. Ltd.

Jianxin Zhang

Jeffrey Morris Cogen

Dachao Li

Yu Zhang

Mohamed Esseghir

Changhao Shi

Wei Tang

Yu Wang

Ying Nan Li

Cheng Chen

Gangwei Sun

Jianping Zuo

Zhongxuan Tu

David Hong Fei Guo

Beilei Wang

Yonggang Chen

Jiawen Xiong

Zhe Du

Zhongshun Yang

Junxia Wang

Yu Wen

Haiyang Liu

Zhaoang Yang

David Hong-fei Guo

David Hong Guo

Zhong Shun Yang

A surfactant and a method of forming the surfactant having the formula (I) where a is an integer from 1 to 10, b is an integer from 0 to 10, Ris &#x2014;CHor &#x2014;H, n is an integer from 0 to 20, and Ris a moiety selected from the group consisting of (II), (III), (IV), (V), (VI), (VII) or (VIII) where m is an integer from 0 to 4. The surfactant can be used in a method for preparing a rigid polyurethane foam. 

Surfactants for polyurethane foams

In one aspect there is provided a foam comprising: a polymeric matrix comprising polyethylene grafted polymerized siloxane, and a plurality of cells formed in the polymeric matrix and containing a blowing agent comprising carbon dioxide. In another aspect there is provided a method of making a foam comprising: grafting polymerized siloxane to polyethylene to form a grafted intermediate; molding the grafted intermediate to form a molded intermediate; and foaming the molded intermediate using high-pressure COto form the foam, wherein the foam has a porosity greater than 75%.

Polydimethylsiloxane grafted polyethylene foam

An electronic device detects erroneous key selection entries or inaccurate actuation of a keypad. The device has a keypad with aligned keys. Each of the keys is partitioned into two sensor sub regions. A first one of the sub-regions includes at least a first sensor and a second one of the sub-regions includes a second sensor. A processor with a keypad sensor inputs is selectively coupled to the first and second sensors of each of the sub-regions. The second sensor of the first key and a proximal first sensor of an adjacent second key are coupled to a common keypad sensor input to provide indistinguishable sub-regions of adjacent keys. The processor is programmed to detect an erroneous key selection entry when only a key actuation signal is provided from the common keypad sensor.

Electronic device for detecting erronous key selection entry

A power adapter and an electrical connector for the power adapter operate to provide power to an electronic device such as a laptop computer. The power adapter includes a switch and a circuit for detecting whether or not the electrical connector is connected to the electronic device. If the adapter is not connected to an electronic device, the switch is opened so that no power is drawn from an AC supply. The electrical connector includes first and second conductors that are electrically connected to the detection circuit. The detection circuit detects a change in potential when the connector is plugged into an electronic device.

Power adapter and electrical connector therefor

In one embodiment, a system for providing short circuit protection is disclosed. The system has a supply circuit and a series switch. The supply circuit has a supply input and a supply output, and is configured to deliver an output current at the supply output, and to disable the supply output if the output current exceeds a first current limit. The series switch coupled between the supply output of the supply circuit and a supply node, and the supply node is configured to be coupled to a load.

System and method for short circuit protection

Water-soluble artemisinin derivatives, their preparation methods, the pharmaceutical compositions containing the same derivatives and the use thereof are disclosed. The artemisinin derivatives have following formula I. It has been proved by pharmacological tests that these compounds and compositions have evident immuno-suppressive activities, and may be used in the preparation of novel immuno-suppressants for treating the diseases caused by hyperfunction of human immunity (e.g. the auto-immune diseases such as lupus erythematosus, rheumatoid arthritis, multiple sclerosis and the like), and for inhibiting the graft rejection after cell or organ transplantation. 

Water-soluble artemisinin derivatives, their preparation methods, the pharmaceutical compositions and the use thereof

Growing community of inventors

Shanghai, China

Jianxin Zhang