Honeywell International Inc.

Unity Biotechnology, Inc.

Empire Technology Development LLC

Microport Neurotech (shanghai) Co., Ltd.

Rae Systems (shanghai) Inc.

Nio (anhui) Holding Co., Ltd.

Rae Systems, Inc.

Bing Chen

Feng Liang

Thomas W Von Geldern

Bradley J Backes

Aimin Su

Chuang Huang

Peng Yu

Xin Fan

Tengfei Zhang

Li Song

Zhongxing Cao

Qian Zheng

Yiqun Bruce Wang

Zhiyong Xie

Junhui Zhang

Qiaorong Jin

Hairui Yu

Mengqi Chang

Yunfei Peng

Yuanyi Guo

Bei Jin

Haining Gong

Xu Zha

Tianshu Li

Jingjie Wang

Methods and systems for detecting and limiting the water in a photoionization detector are provided. The method may include powering off a lamp configured to ionize particles of air. The method may also include monitoring a signal from the photoionization detector. The signal may be monitored based on a current between a signal electrode and a bias electrode. In an instance the signal is above a signal threshold, the method may also include electrolyzing one or more particles of water present in the photoionization detector by closing a leakage switch in order to allow current to flow through the bias electrode and the signal electrode. In an instance the signal is below the signal threshold, the method may include powering on the lamp to begin photoionization detection. Corresponding systems are also provided.

Methods and systems for limiting water within a photoionization detector

Methods, apparatuses, and systems for providing an alternating current (AC) voltage supply for a photoionization detector lamp from a direct current (DC) voltage source are provided. An example apparatus may include a DC voltage to DC voltage (DC/DC) converter circuitry, and a feedback circuitry that is electronically coupled to the DC/DC converter circuitry and converts a reference AC voltage to a feedback DC voltage for the DC/DC converter circuitry. In some examples, the feedback circuitry may be electronically coupled to a DC voltage to AC voltage (DC/AC) converting circuitry to obtain the reference AC voltage.

Method, apparatus and system for providing voltage supply for photoionization detector lamp

Embodiments relate generally to systems and methods for a low profile PID typically including a flexible substrate; two or more electrodes containing an array of holes; a spacer with one or more holes; and two or more contacts corresponding to the electrodes. Typically, the unfolded flexible substrate defines a plane, and the electrodes are disposed on the flexible substrate such that when the flexible substrate is folded, one electrode is located on a top plane and another electrode is located on a bottom plane and the spacer is disposed between the electrodes to form an ionization chamber for use with a UV radiation source.

Low profile ionization detector

An embolic coil conveying device and a preparation method thereof are disclosed. The embolic coil conveying device includes a pusher and an embolic coil. A distal end of the pusher and a proximal end of the embolic coil are connected to serve as a detachment section. A stretch-resistant thread is disposed in the embolic coil. The stretch-resistant thread is fixed at the proximal end of the embolic coil. A conductive wire is disposed in the pusher. The stretch-resistant thread is connected to the conductive wire. Compared with the prior art, the present invention has the advantages that the stretch-resistant thread is fixed at the proximal end of the embolic coil, so that the stretch-resistant thread is connected to the conductive wire, thereby reducing the length of the detachment section, making the detachment section more flexible, and avoiding kick-out of a microcatheter due to release of the embolic coil.

Embolism coil conveying device and preparation method therefor

Compounds represented by Formula (I) and (II) and salts thereof are described herein. The compounds or salts of Formula (I) and (II) may be used to treat senescence-associated diseases and disorders. 

Acylsulfonamide derivatives for treating senescence-associated diseases and disorders

Embodiments relate generally to an ultraviolet lamp () for use with a photoionization detector comprising a sealed tube () configured to contain at least one gas; a coating () applied to the inner surface () of the sealed tube (); and a crystal window () attached to the sealed tube (), configured to allow transmittance of ultraviolet (UV) light generated within the sealed tube (). Additional embodiments include a method of forming an ultraviolet lamp () for use with a photoionization detector, the method comprising applying at least one layer of a coating () onto an inner surface () of a sealed tube (); sealing a crystal window () onto the sealed tube (); filling the sealed tube () with at least one gas; sealing the sealed tube () containing the at least one gas; generating ultraviolet radiation using the at least one gas within the sealed tube (); and directing the generated ultraviolet radiation through the crystal window () toward a sample gas in the photoionization detector.

Photoionization detector ultraviolet lamp

This invention provides a method for enantioselective synthesis of cis-imidazolines and related structures through chiral resolution. A chiral acid is used to separate enantiomeric precursors of the cis-imidazolines from a racemic mixture by selective crystallization. Both enantiomers can be cyclized into the desired cis-imidazoline by complementary pathways. Compounds can be synthesized according to the invention with an enantiomeric excess as high as 99%. Cis-imidazolines such as Nutlin-3a prepared according to this invention may be used for treating cancer, killing senescent cells, or treating senescence-associated conditions.

Chiral synthesis method for producing cis-imidazoline compounds for pharmaceutical use

The present invention discloses a sampling and detection device for detecting volatile organic content in water, comprising a hollow sampler () and a gas detector () connected to the sampler (). A side wall of a lower half of the sampler () is provided with more than one water inlet channel (), and a lower end is provided with a gas bubbler (). Said detection device ensures measurement accuracy and continuity while facilitating in-situ detection.

Device for sampling and detecting volatile organic compounds in water

Embodiments provided herein relate to removing liquid from soil or other moisture rich media. In some embodiments, a method for solidifying sludge is provided and involves providing a sludge, fluidizing the sludge to form a fluidized sludge, adding a gelling agent to the fluidized sludge in an amount sufficient to form a slurry, and adding a dewatering agent to the slurry in an amount sufficient to dewater the slurry, thereby solidifying the sludge.

Solidifying sludge

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Shanghai, China

Bing Chen