검색연산자 | 기능 | 검색시 예 |
---|---|---|
() | 우선순위가 가장 높은 연산자 | 예1) (나노 (기계 | machine)) |
공백 | 두 개의 검색어(식)을 모두 포함하고 있는 문서 검색 | 예1) (나노 기계) 예2) 나노 장영실 |
| | 두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색 | 예1) (줄기세포 | 면역) 예2) 줄기세포 | 장영실 |
! | NOT 이후에 있는 검색어가 포함된 문서는 제외 | 예1) (황금 !백금) 예2) !image |
* | 검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색 | 예) semi* |
"" | 따옴표 내의 구문과 완전히 일치하는 문서만 검색 | 예) "Transform and Quantization" |
국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) | F25B-013/00 |
미국특허분류(USC) | 165/12 ; 165/30 ; 165/61 ; 62/62 |
출원번호 | US-0049302 (1979-06-18) |
발명자 / 주소 | |
출원인 / 주소 | |
인용정보 | 피인용 횟수 : 25 인용 특허 : 3 |
The process for freezing cell suspensions by locating the suspension in a freezing chamber and simultaneously monitoring the temperature of the suspended cells and of the chamber. The cooling of the chamber is regulated at predetermined rates in response to given temperature levels of the sample. The cooling chamber includes a fan, a heater, and a source of refrigerant. The process includes the steps of selectively decreasing and increasing the temperature of the freezing chamber responsive to predetermined temperature points on the freezing curve of the...
Apparatus for freezing cell suspension samples comprising: a housing having walls defining therein an enclosed oval duct forming a continuously circulating passage, one section of said duct constituting a freezing section for the location of a plurality of separately packaged samples to be frozen and having, an inlet to said passage spaced from said freezing section, for the introduction of a refrigerant into said duct, a heating unit located in said duct between said inlet and said freezing section downstream of said freezing section for heating said re...